### Bug Summary

File: | builds/wireshark/wireshark/epan/dissectors/packet-tls-utils.c
Warning: | line 4072, column 17 Potential leak of memory pointed to by 'handshake_hashed_data.data'

### Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name packet-tls-utils.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-22/lib/clang/22 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/epan/dissectors -isystem /builds/wireshark/wireshark/build/epan/dissectors -isystem /usr/include/mit-krb5 -isystem /usr/include/libxml2 -isystem /builds/wireshark/wireshark/epan -D CARES_NO_DEPRECATED -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_BUILD_DLL -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-22/lib/clang/22/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=gnu17 -ferror-limit 19 -fvisibility=hidden -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -fdwarf2-cfi-asm -o /builds/wireshark/wireshark/sbout/2026-07-20-100411-3661-1 -x c /builds/wireshark/wireshark/epan/dissectors/packet-tls-utils.c

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1 | /* packet-tls-utils.c
2 | * ssl manipulation functions
3 | * By Paolo Abeni <paolo.abeni@email.com>
4 | *
5 | * Copyright (c) 2013, Hauke Mehrtens <hauke@hauke-m.de>
6 | * Copyright (c) 2014, Peter Wu <peter@lekensteyn.nl>
7 | *
8 | * Wireshark - Network traffic analyzer
9 | * By Gerald Combs <gerald@wireshark.org>
10 | * Copyright 1998 Gerald Combs
11 | *
12 | * SPDX-License-Identifier: GPL-2.0-or-later
13 | */
14 |
15 | #include "config.h"
16 |
17 | #include <stdlib.h>
18 | #include <errno(*__errno_location ()).h>
19 |
20 | #include <epan/packet.h>
21 | #include <epan/strutil.h>
22 | #include <epan/addr_resolv.h>
23 | #include <epan/expert.h>
24 | #include <epan/asn1.h>
25 | #include <epan/proto_data.h>
26 | #include <epan/oids.h>
27 | #include <epan/secrets.h>
28 |
29 | #include <wsutil/inet_cidr.h>
30 | #include <wsutil/filesystem.h>
31 | #include <wsutil/file_util.h>
32 | #include <wsutil/str_util.h>
33 | #include <wsutil/report_message.h>
34 | #include <wsutil/pint.h>
35 | #include <wsutil/strtoi.h>
36 | #include <wsutil/wsgcrypt.h>
37 | #include <wsutil/rsa.h>
38 | #include <wsutil/ws_assert.h>
39 | #include <wsutil/zlib_compat.h>
40 | #include "packet-ber.h"
41 | #include "packet-x509af.h"
42 | #include "packet-x509if.h"
43 | #include "packet-tls-utils.h"
44 | #include "packet-ocsp.h"
45 | #include "packet-tls.h"
46 | #include "packet-dtls.h"
47 | #include "packet-quic.h"
48 | #if defined(HAVE_LIBGNUTLS1)
49 | #include <gnutls/abstract.h>
50 | #include <gnutls/x509.h>
51 | #include <gnutls/pkcs12.h>
52 | #endif
53 |
54 | /* JA3/JA3S calculations must ignore GREASE values
55 | * as described in RFC 8701.
56 | */
57 | #define IS_GREASE_TLS(x)((((x) & 0x0f0f) == 0x0a0a) && (((x) & 0xff) == (((x)>>8) & 0xff))) ((((x) & 0x0f0f) == 0x0a0a) && \
58 | (((x) & 0xff) == (((x)>>8) & 0xff)))
59 |
60 | /* Section 22.3 of RFC 9000 (QUIC) reserves values of this
61 | * form for a similar purpose as GREASE.
62 | */
63 | #define IS_GREASE_QUIC(x)((x) > 27 ? ((((x) - 27) % 31) == 0) : 0) ((x) > 27 ? ((((x) - 27) % 31) == 0) : 0)
64 |
65 | #define DTLS13_MAX_EPOCH10 10
66 |
67 | /* Lookup tables {{{ */
68 | const value_string ssl_version_short_names[] = {
69 | { SSLV2_VERSION0x0002, "SSLv2" },
70 | { SSLV3_VERSION0x300, "SSLv3" },
71 | { TLSV1_VERSION0x301, "TLSv1" },
72 | { TLCPV1_VERSION0x101, "TLCP" },
73 | { TLSV1DOT1_VERSION0x302, "TLSv1.1" },
74 | { TLSV1DOT2_VERSION0x303, "TLSv1.2" },
75 | { TLSV1DOT3_VERSION0x304, "TLSv1.3" },
76 | { DTLSV1DOT0_VERSION0xfeff, "DTLSv1.0" },
77 | { DTLSV1DOT2_VERSION0xfefd, "DTLSv1.2" },
78 | { DTLSV1DOT3_VERSION0xfefc, "DTLSv1.3" },
79 | { DTLSV1DOT0_OPENSSL_VERSION0x100, "DTLS 1.0 (OpenSSL pre 0.9.8f)" },
80 | { 0x00, NULL((void*)0) }
81 | };
82 |
83 | const value_string ssl_versions[] = {
84 | { SSLV2_VERSION0x0002, "SSL 2.0" },
85 | { SSLV3_VERSION0x300, "SSL 3.0" },
86 | { TLSV1_VERSION0x301, "TLS 1.0" },
87 | { TLCPV1_VERSION0x101, "TLCP" },
88 | { TLSV1DOT1_VERSION0x302, "TLS 1.1" },
89 | { TLSV1DOT2_VERSION0x303, "TLS 1.2" },
90 | { TLSV1DOT3_VERSION0x304, "TLS 1.3" },
91 | { 0x7F0E, "TLS 1.3 (draft 14)" },
92 | { 0x7F0F, "TLS 1.3 (draft 15)" },
93 | { 0x7F10, "TLS 1.3 (draft 16)" },
94 | { 0x7F11, "TLS 1.3 (draft 17)" },
95 | { 0x7F12, "TLS 1.3 (draft 18)" },
96 | { 0x7F13, "TLS 1.3 (draft 19)" },
97 | { 0x7F14, "TLS 1.3 (draft 20)" },
98 | { 0x7F15, "TLS 1.3 (draft 21)" },
99 | { 0x7F16, "TLS 1.3 (draft 22)" },
100 | { 0x7F17, "TLS 1.3 (draft 23)" },
101 | { 0x7F18, "TLS 1.3 (draft 24)" },
102 | { 0x7F19, "TLS 1.3 (draft 25)" },
103 | { 0x7F1A, "TLS 1.3 (draft 26)" },
104 | { 0x7F1B, "TLS 1.3 (draft 27)" },
105 | { 0x7F1C, "TLS 1.3 (draft 28)" },
106 | { 0xFB17, "TLS 1.3 (Facebook draft 23)" },
107 | { 0xFB1A, "TLS 1.3 (Facebook draft 26)" },
108 | { DTLSV1DOT0_OPENSSL_VERSION0x100, "DTLS 1.0 (OpenSSL pre 0.9.8f)" },
109 | { DTLSV1DOT0_VERSION0xfeff, "DTLS 1.0" },
110 | { DTLSV1DOT2_VERSION0xfefd, "DTLS 1.2" },
111 | { DTLSV1DOT3_VERSION0xfefc, "DTLS 1.3" },
112 | { 0x0A0A, "Reserved (GREASE)" }, /* RFC 8701 */
113 | { 0x1A1A, "Reserved (GREASE)" }, /* RFC 8701 */
114 | { 0x2A2A, "Reserved (GREASE)" }, /* RFC 8701 */
115 | { 0x3A3A, "Reserved (GREASE)" }, /* RFC 8701 */
116 | { 0x4A4A, "Reserved (GREASE)" }, /* RFC 8701 */
117 | { 0x5A5A, "Reserved (GREASE)" }, /* RFC 8701 */
118 | { 0x6A6A, "Reserved (GREASE)" }, /* RFC 8701 */
119 | { 0x7A7A, "Reserved (GREASE)" }, /* RFC 8701 */
120 | { 0x8A8A, "Reserved (GREASE)" }, /* RFC 8701 */
121 | { 0x9A9A, "Reserved (GREASE)" }, /* RFC 8701 */
122 | { 0xAAAA, "Reserved (GREASE)" }, /* RFC 8701 */
123 | { 0xBABA, "Reserved (GREASE)" }, /* RFC 8701 */
124 | { 0xCACA, "Reserved (GREASE)" }, /* RFC 8701 */
125 | { 0xDADA, "Reserved (GREASE)" }, /* RFC 8701 */
126 | { 0xEAEA, "Reserved (GREASE)" }, /* RFC 8701 */
127 | { 0xFAFA, "Reserved (GREASE)" }, /* RFC 8701 */
128 | { 0x00, NULL((void*)0) }
129 | };
130 |
131 | static const value_string ssl_version_ja4_names[] = {
132 | { 0x0100, "s1" },
133 | { SSLV2_VERSION0x0002, "s2" },
134 | { SSLV3_VERSION0x300, "s3" },
135 | { TLSV1_VERSION0x301, "10" },
136 | { TLSV1DOT1_VERSION0x302, "11" },
137 | { TLSV1DOT2_VERSION0x303, "12" },
138 | { TLSV1DOT3_VERSION0x304, "13" },
139 | { DTLSV1DOT0_VERSION0xfeff, "d1" },
140 | { DTLSV1DOT2_VERSION0xfefd, "d2" },
141 | { DTLSV1DOT3_VERSION0xfefc, "d3" },
142 | { 0x00, NULL((void*)0) }
143 | };
144 |
145 | const value_string ssl_20_msg_types[] = {
146 | { SSL2_HND_ERROR0x00, "Error" },
147 | { SSL2_HND_CLIENT_HELLO0x01, "Client Hello" },
148 | { SSL2_HND_CLIENT_MASTER_KEY0x02, "Client Master Key" },
149 | { SSL2_HND_CLIENT_FINISHED0x03, "Client Finished" },
150 | { SSL2_HND_SERVER_HELLO0x04, "Server Hello" },
151 | { SSL2_HND_SERVER_VERIFY0x05, "Server Verify" },
152 | { SSL2_HND_SERVER_FINISHED0x06, "Server Finished" },
153 | { SSL2_HND_REQUEST_CERTIFICATE0x07, "Request Certificate" },
154 | { SSL2_HND_CLIENT_CERTIFICATE0x08, "Client Certificate" },
155 | { 0x00, NULL((void*)0) }
156 | };
157 | /* http://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml */
158 | /* Note: sorted by ascending value so value_string-ext can do a binary search */
159 | static const value_string ssl_20_cipher_suites[] = {
160 | { 0x000000, "TLS_NULL_WITH_NULL_NULL" },
161 | { 0x000001, "TLS_RSA_WITH_NULL_MD5" },
162 | { 0x000002, "TLS_RSA_WITH_NULL_SHA" },
163 | { 0x000003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" },
164 | { 0x000004, "TLS_RSA_WITH_RC4_128_MD5" },
165 | { 0x000005, "TLS_RSA_WITH_RC4_128_SHA" },
166 | { 0x000006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" },
167 | { 0x000007, "TLS_RSA_WITH_IDEA_CBC_SHA" },
168 | { 0x000008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" },
169 | { 0x000009, "TLS_RSA_WITH_DES_CBC_SHA" },
170 | { 0x00000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" },
171 | { 0x00000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" },
172 | { 0x00000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" },
173 | { 0x00000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" },
174 | { 0x00000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" },
175 | { 0x00000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" },
176 | { 0x000010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" },
177 | { 0x000011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" },
178 | { 0x000012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" },
179 | { 0x000013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" },
180 | { 0x000014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" },
181 | { 0x000015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" },
182 | { 0x000016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" },
183 | { 0x000017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" },
184 | { 0x000018, "TLS_DH_anon_WITH_RC4_128_MD5" },
185 | { 0x000019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" },
186 | { 0x00001a, "TLS_DH_anon_WITH_DES_CBC_SHA" },
187 | { 0x00001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" },
188 | { 0x00001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" },
189 | { 0x00001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" },
190 | #if 0
191 | { 0x00001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" },
192 | #endif
193 | /* RFC 2712 */
194 | { 0x00001E, "TLS_KRB5_WITH_DES_CBC_SHA" },
195 | { 0x00001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA" },
196 | { 0x000020, "TLS_KRB5_WITH_RC4_128_SHA" },
197 | { 0x000021, "TLS_KRB5_WITH_IDEA_CBC_SHA" },
198 | { 0x000022, "TLS_KRB5_WITH_DES_CBC_MD5" },
199 | { 0x000023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5" },
200 | { 0x000024, "TLS_KRB5_WITH_RC4_128_MD5" },
201 | { 0x000025, "TLS_KRB5_WITH_IDEA_CBC_MD5" },
202 | { 0x000026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA" },
203 | { 0x000027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA" },
204 | { 0x000028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA" },
205 | { 0x000029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5" },
206 | { 0x00002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5" },
207 | { 0x00002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5" },
208 | /* RFC 4785 */
209 | { 0x00002C, "TLS_PSK_WITH_NULL_SHA" },
210 | { 0x00002D, "TLS_DHE_PSK_WITH_NULL_SHA" },
211 | { 0x00002E, "TLS_RSA_PSK_WITH_NULL_SHA" },
212 | /* RFC 5246 */
213 | { 0x00002f, "TLS_RSA_WITH_AES_128_CBC_SHA" },
214 | { 0x000030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" },
215 | { 0x000031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" },
216 | { 0x000032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" },
217 | { 0x000033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" },
218 | { 0x000034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" },
219 | { 0x000035, "TLS_RSA_WITH_AES_256_CBC_SHA" },
220 | { 0x000036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" },
221 | { 0x000037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" },
222 | { 0x000038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" },
223 | { 0x000039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" },
224 | { 0x00003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" },
225 | { 0x00003B, "TLS_RSA_WITH_NULL_SHA256" },
226 | { 0x00003C, "TLS_RSA_WITH_AES_128_CBC_SHA256" },
227 | { 0x00003D, "TLS_RSA_WITH_AES_256_CBC_SHA256" },
228 | { 0x00003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256" },
229 | { 0x00003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256" },
230 | { 0x000040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256" },
231 | { 0x000041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" },
232 | { 0x000042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" },
233 | { 0x000043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" },
234 | { 0x000044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" },
235 | { 0x000045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" },
236 | { 0x000046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" },
237 | { 0x000047, "TLS_ECDH_ECDSA_WITH_NULL_SHA" },
238 | { 0x000048, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" },
239 | { 0x000049, "TLS_ECDH_ECDSA_WITH_DES_CBC_SHA" },
240 | { 0x00004A, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" },
241 | { 0x00004B, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" },
242 | { 0x00004C, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" },
243 | { 0x000060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" },
244 | { 0x000061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" },
245 | { 0x000062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" },
246 | { 0x000063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" },
247 | { 0x000064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" },
248 | { 0x000065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" },
249 | { 0x000066, "TLS_DHE_DSS_WITH_RC4_128_SHA" },
250 | { 0x000067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256" },
251 | { 0x000068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256" },
252 | { 0x000069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256" },
253 | { 0x00006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256" },
254 | { 0x00006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" },
255 | { 0x00006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256" },
256 | { 0x00006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256" },
257 | /* 0x00,0x6E-83 Unassigned */
258 | { 0x000084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" },
259 | { 0x000085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" },
260 | { 0x000086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" },
261 | { 0x000087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" },
262 | { 0x000088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" },
263 | { 0x000089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" },
264 | /* RFC 4279 */
265 | { 0x00008A, "TLS_PSK_WITH_RC4_128_SHA" },
266 | { 0x00008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA" },
267 | { 0x00008C, "TLS_PSK_WITH_AES_128_CBC_SHA" },
268 | { 0x00008D, "TLS_PSK_WITH_AES_256_CBC_SHA" },
269 | { 0x00008E, "TLS_DHE_PSK_WITH_RC4_128_SHA" },
270 | { 0x00008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA" },
271 | { 0x000090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA" },
272 | { 0x000091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA" },
273 | { 0x000092, "TLS_RSA_PSK_WITH_RC4_128_SHA" },
274 | { 0x000093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA" },
275 | { 0x000094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA" },
276 | { 0x000095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA" },
277 | /* RFC 4162 */
278 | { 0x000096, "TLS_RSA_WITH_SEED_CBC_SHA" },
279 | { 0x000097, "TLS_DH_DSS_WITH_SEED_CBC_SHA" },
280 | { 0x000098, "TLS_DH_RSA_WITH_SEED_CBC_SHA" },
281 | { 0x000099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA" },
282 | { 0x00009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA" },
283 | { 0x00009B, "TLS_DH_anon_WITH_SEED_CBC_SHA" },
284 | /* RFC 5288 */
285 | { 0x00009C, "TLS_RSA_WITH_AES_128_GCM_SHA256" },
286 | { 0x00009D, "TLS_RSA_WITH_AES_256_GCM_SHA384" },
287 | { 0x00009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256" },
288 | { 0x00009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384" },
289 | { 0x0000A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256" },
290 | { 0x0000A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384" },
291 | { 0x0000A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256" },
292 | { 0x0000A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384" },
293 | { 0x0000A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256" },
294 | { 0x0000A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384" },
295 | { 0x0000A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256" },
296 | { 0x0000A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384" },
297 | /* RFC 5487 */
298 | { 0x0000A8, "TLS_PSK_WITH_AES_128_GCM_SHA256" },
299 | { 0x0000A9, "TLS_PSK_WITH_AES_256_GCM_SHA384" },
300 | { 0x0000AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256" },
301 | { 0x0000AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384" },
302 | { 0x0000AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256" },
303 | { 0x0000AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384" },
304 | { 0x0000AE, "TLS_PSK_WITH_AES_128_CBC_SHA256" },
305 | { 0x0000AF, "TLS_PSK_WITH_AES_256_CBC_SHA384" },
306 | { 0x0000B0, "TLS_PSK_WITH_NULL_SHA256" },
307 | { 0x0000B1, "TLS_PSK_WITH_NULL_SHA384" },
308 | { 0x0000B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256" },
309 | { 0x0000B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384" },
310 | { 0x0000B4, "TLS_DHE_PSK_WITH_NULL_SHA256" },
311 | { 0x0000B5, "TLS_DHE_PSK_WITH_NULL_SHA384" },
312 | { 0x0000B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256" },
313 | { 0x0000B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384" },
314 | { 0x0000B8, "TLS_RSA_PSK_WITH_NULL_SHA256" },
315 | { 0x0000B9, "TLS_RSA_PSK_WITH_NULL_SHA384" },
316 | /* From RFC 5932 */
317 | { 0x0000BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
318 | { 0x0000BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256" },
319 | { 0x0000BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
320 | { 0x0000BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256" },
321 | { 0x0000BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
322 | { 0x0000BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256" },
323 | { 0x0000C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
324 | { 0x0000C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256" },
325 | { 0x0000C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
326 | { 0x0000C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256" },
327 | { 0x0000C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
328 | { 0x0000C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256" },
329 | /* 0x00,0xC6-FE Unassigned */
330 | { 0x0000FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV" },
331 | /* 0x01-BF,* Unassigned */
332 | /* From RFC 4492 */
333 | { 0x00c001, "TLS_ECDH_ECDSA_WITH_NULL_SHA" },
334 | { 0x00c002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" },
335 | { 0x00c003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" },
336 | { 0x00c004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" },
337 | { 0x00c005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" },
338 | { 0x00c006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA" },
339 | { 0x00c007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA" },
340 | { 0x00c008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA" },
341 | { 0x00c009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA" },
342 | { 0x00c00a, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" },
343 | { 0x00c00b, "TLS_ECDH_RSA_WITH_NULL_SHA" },
344 | { 0x00c00c, "TLS_ECDH_RSA_WITH_RC4_128_SHA" },
345 | { 0x00c00d, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA" },
346 | { 0x00c00e, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA" },
347 | { 0x00c00f, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA" },
348 | { 0x00c010, "TLS_ECDHE_RSA_WITH_NULL_SHA" },
349 | { 0x00c011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA" },
350 | { 0x00c012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA" },
351 | { 0x00c013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA" },
352 | { 0x00c014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" },
353 | { 0x00c015, "TLS_ECDH_anon_WITH_NULL_SHA" },
354 | { 0x00c016, "TLS_ECDH_anon_WITH_RC4_128_SHA" },
355 | { 0x00c017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA" },
356 | { 0x00c018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA" },
357 | { 0x00c019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA" },
358 | /* RFC 5054 */
359 | { 0x00C01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA" },
360 | { 0x00C01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA" },
361 | { 0x00C01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA" },
362 | { 0x00C01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA" },
363 | { 0x00C01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA" },
364 | { 0x00C01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA" },
365 | { 0x00C020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA" },
366 | { 0x00C021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA" },
367 | { 0x00C022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA" },
368 | /* RFC 5589 */
369 | { 0x00C023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" },
370 | { 0x00C024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384" },
371 | { 0x00C025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256" },
372 | { 0x00C026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384" },
373 | { 0x00C027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" },
374 | { 0x00C028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" },
375 | { 0x00C029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256" },
376 | { 0x00C02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384" },
377 | { 0x00C02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" },
378 | { 0x00C02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" },
379 | { 0x00C02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256" },
380 | { 0x00C02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384" },
381 | { 0x00C02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" },
382 | { 0x00C030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384" },
383 | { 0x00C031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256" },
384 | { 0x00C032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384" },
385 | /* RFC 5489 */
386 | { 0x00C033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA" },
387 | { 0x00C034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA" },
388 | { 0x00C035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" },
389 | { 0x00C036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA" },
390 | { 0x00C037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256" },
391 | { 0x00C038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384" },
392 | { 0x00C039, "TLS_ECDHE_PSK_WITH_NULL_SHA" },
393 | { 0x00C03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256" },
394 | { 0x00C03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384" },
395 | /* 0xC0,0x3C-FF Unassigned
396 | 0xC1-FD,* Unassigned
397 | 0xFE,0x00-FD Unassigned
398 | 0xFE,0xFE-FF Reserved to avoid conflicts with widely deployed implementations [Pasi_Eronen]
399 | 0xFF,0x00-FF Reserved for Private Use [RFC5246]
400 | */
401 |
402 | /* old numbers used in the beginning
403 | * https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305 */
404 | { 0x00CC13, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
405 | { 0x00CC14, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
406 | { 0x00CC15, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
407 |
408 | /* https://tools.ietf.org/html/rfc7905 */
409 | { 0x00CCA8, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
410 | { 0x00CCA9, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
411 | { 0x00CCAA, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
412 | { 0x00CCAB, "TLS_PSK_WITH_CHACHA20_POLY1305_SHA256" },
413 | { 0x00CCAC, "TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256" },
414 | { 0x00CCAD, "TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256" },
415 | { 0x00CCAE, "TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256" },
416 |
417 | /* GM/T 0024-2014 */
418 | { 0x00e001, "ECDHE_SM1_SM3"},
419 | { 0x00e003, "ECC_SM1_SM3"},
420 | { 0x00e005, "IBSDH_SM1_SM3"},
421 | { 0x00e007, "IBC_SM1_SM3"},
422 | { 0x00e009, "RSA_SM1_SM3"},
423 | { 0x00e00a, "RSA_SM1_SHA1"},
424 | { 0x00e011, "ECDHE_SM4_CBC_SM3"},
425 | { 0x00e013, "ECC_SM4_CBC_SM3"},
426 | { 0x00e015, "IBSDH_SM4_CBC_SM3"},
427 | { 0x00e017, "IBC_SM4_CBC_SM3"},
428 | { 0x00e019, "RSA_SM4_CBC_SM3"},
429 | { 0x00e01a, "RSA_SM4_CBC_SHA1"},
430 | { 0x00e01c, "RSA_SM4_CBC_SHA256"},
431 | { 0x00e051, "ECDHE_SM4_GCM_SM3"},
432 | { 0x00e053, "ECC_SM4_GCM_SM3"},
433 | { 0x00e055, "IBSDH_SM4_GCM_SM3"},
434 | { 0x00e057, "IBC_SM4_GCM_SM3"},
435 | { 0x00e059, "RSA_SM4_GCM_SM3"},
436 | { 0x00e05a, "RSA_SM4_GCM_SHA256"},
437 |
438 | /* https://tools.ietf.org/html/draft-josefsson-salsa20-tls */
439 | { 0x00E410, "TLS_RSA_WITH_ESTREAM_SALSA20_SHA1" },
440 | { 0x00E411, "TLS_RSA_WITH_SALSA20_SHA1" },
441 | { 0x00E412, "TLS_ECDHE_RSA_WITH_ESTREAM_SALSA20_SHA1" },
442 | { 0x00E413, "TLS_ECDHE_RSA_WITH_SALSA20_SHA1" },
443 | { 0x00E414, "TLS_ECDHE_ECDSA_WITH_ESTREAM_SALSA20_SHA1" },
444 | { 0x00E415, "TLS_ECDHE_ECDSA_WITH_SALSA20_SHA1" },
445 | { 0x00E416, "TLS_PSK_WITH_ESTREAM_SALSA20_SHA1" },
446 | { 0x00E417, "TLS_PSK_WITH_SALSA20_SHA1" },
447 | { 0x00E418, "TLS_ECDHE_PSK_WITH_ESTREAM_SALSA20_SHA1" },
448 | { 0x00E419, "TLS_ECDHE_PSK_WITH_SALSA20_SHA1" },
449 | { 0x00E41A, "TLS_RSA_PSK_WITH_ESTREAM_SALSA20_SHA1" },
450 | { 0x00E41B, "TLS_RSA_PSK_WITH_SALSA20_SHA1" },
451 | { 0x00E41C, "TLS_DHE_PSK_WITH_ESTREAM_SALSA20_SHA1" },
452 | { 0x00E41D, "TLS_DHE_PSK_WITH_SALSA20_SHA1" },
453 | { 0x00E41E, "TLS_DHE_RSA_WITH_ESTREAM_SALSA20_SHA1" },
454 | { 0x00E41F, "TLS_DHE_RSA_WITH_SALSA20_SHA1" },
455 |
456 | /* these from http://www.mozilla.org/projects/
457 | security/pki/nss/ssl/fips-ssl-ciphersuites.html */
458 | { 0x00fefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
459 | { 0x00feff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
460 | { 0x00ffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
461 | { 0x00ffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
462 | /* note that ciphersuites of {0x00????} are TLS cipher suites in
463 | * a sslv2 client hello message; the ???? above is the two-byte
464 | * tls cipher suite id
465 | */
466 |
467 | { 0x010080, "SSL2_RC4_128_WITH_MD5" },
468 | { 0x020080, "SSL2_RC4_128_EXPORT40_WITH_MD5" },
469 | { 0x030080, "SSL2_RC2_128_CBC_WITH_MD5" },
470 | { 0x040080, "SSL2_RC2_128_CBC_EXPORT40_WITH_MD5" },
471 | { 0x050080, "SSL2_IDEA_128_CBC_WITH_MD5" },
472 | { 0x060040, "SSL2_DES_64_CBC_WITH_MD5" },
473 | { 0x0700c0, "SSL2_DES_192_EDE3_CBC_WITH_MD5" },
474 | { 0x080080, "SSL2_RC4_64_WITH_MD5" },
475 |
476 | { 0x00, NULL((void*)0) }
477 | };
478 |
479 | value_string_ext ssl_20_cipher_suites_ext = VALUE_STRING_EXT_INIT(ssl_20_cipher_suites){ _try_val_to_str_ext_init, 0, (sizeof (ssl_20_cipher_suites) / sizeof ((ssl_20_cipher_suites)[0]))-1, ssl_20_cipher_suites , "ssl_20_cipher_suites", ((void*)0) };
480 |
481 |
482 | /*
483 | * Supported Groups (formerly named "EC Named Curve").
484 | * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8
485 | */
486 | const value_string ssl_extension_curves[] = {
487 | { 1, "sect163k1" },
488 | { 2, "sect163r1" },
489 | { 3, "sect163r2" },
490 | { 4, "sect193r1" },
491 | { 5, "sect193r2" },
492 | { 6, "sect233k1" },
493 | { 7, "sect233r1" },
494 | { 8, "sect239k1" },
495 | { 9, "sect283k1" },
496 | { 10, "sect283r1" },
497 | { 11, "sect409k1" },
498 | { 12, "sect409r1" },
499 | { 13, "sect571k1" },
500 | { 14, "sect571r1" },
501 | { 15, "secp160k1" },
502 | { 16, "secp160r1" },
503 | { 17, "secp160r2" },
504 | { 18, "secp192k1" },
505 | { 19, "secp192r1" },
506 | { 20, "secp224k1" },
507 | { 21, "secp224r1" },
508 | { 22, "secp256k1" },
509 | { 23, "secp256r1" },
510 | { 24, "secp384r1" },
511 | { 25, "secp521r1" },
512 | { 26, "brainpoolP256r1" }, /* RFC 7027 */
513 | { 27, "brainpoolP384r1" }, /* RFC 7027 */
514 | { 28, "brainpoolP512r1" }, /* RFC 7027 */
515 | { 29, "x25519" }, /* RFC 8446 / RFC 8422 */
516 | { 30, "x448" }, /* RFC 8446 / RFC 8422 */
517 | { 31, "brainpoolP256r1tls13" }, /* RFC8734 */
518 | { 32, "brainpoolP384r1tls13" }, /* RFC8734 */
519 | { 33, "brainpoolP512r1tls13" }, /* RFC8734 */
520 | { 34, "GC256A" }, /* RFC9189 */
521 | { 35, "GC256B" }, /* RFC9189 */
522 | { 36, "GC256C" }, /* RFC9189 */
523 | { 37, "GC256D" }, /* RFC9189 */
524 | { 38, "GC512A" }, /* RFC9189 */
525 | { 39, "GC512B" }, /* RFC9189 */
526 | { 40, "GC512C" }, /* RFC9189 */
527 | { 41, "curveSM2" }, /* RFC 8998 */
528 | { 256, "ffdhe2048" }, /* RFC 7919 */
529 | { 257, "ffdhe3072" }, /* RFC 7919 */
530 | { 258, "ffdhe4096" }, /* RFC 7919 */
531 | { 259, "ffdhe6144" }, /* RFC 7919 */
532 | { 260, "ffdhe8192" }, /* RFC 7919 */
533 | { 512, "MLKEM512"}, /* draft-connolly-tls-mlkem-key-agreement-03 */
534 | { 513, "MLKEM768"}, /* draft-connolly-tls-mlkem-key-agreement-03 */
535 | { 514, "MLKEM1024"}, /* draft-connolly-tls-mlkem-key-agreement-03 */
536 | { 2570, "Reserved (GREASE)" }, /* RFC 8701 */
537 | { 4587, "SecP256r1MLKEM768" }, /* draft-kwiatkowski-tls-ecdhe-mlkem-02 */
538 | { 4588, "X25519MLKEM768" }, /* draft-kwiatkowski-tls-ecdhe-mlkem-03 */
539 | { 4589, "SecP384r1MLKEM1024" }, /* draft-kwiatkowski-tls-ecdhe-mlkem-03 */
540 | { 6682, "Reserved (GREASE)" }, /* RFC 8701 */
541 | { 10794, "Reserved (GREASE)" }, /* RFC 8701 */
542 | { 14906, "Reserved (GREASE)" }, /* RFC 8701 */
543 | { 19018, "Reserved (GREASE)" }, /* RFC 8701 */
544 | { 23130, "Reserved (GREASE)" }, /* RFC 8701 */
545 | { 25497, "X25519Kyber768Draft00 (OBSOLETE)" }, /* draft-tls-westerbaan-xyber768d00-02 */
546 | { 25498, "SecP256r1Kyber768Draft00 (OBSOLETE)" }, /* draft-kwiatkowski-tls-ecdhe-kyber-01 */
547 | { 27242, "Reserved (GREASE)" }, /* RFC 8701 */
548 | { 31354, "Reserved (GREASE)" }, /* RFC 8701 */
549 | { 35466, "Reserved (GREASE)" }, /* RFC 8701 */
550 | { 39578, "Reserved (GREASE)" }, /* RFC 8701 */
551 | { 43690, "Reserved (GREASE)" }, /* RFC 8701 */
552 | { 47802, "Reserved (GREASE)" }, /* RFC 8701 */
553 | { 51914, "Reserved (GREASE)" }, /* RFC 8701 */
554 | { 56026, "Reserved (GREASE)" }, /* RFC 8701 */
555 | { 60138, "Reserved (GREASE)" }, /* RFC 8701 */
556 | { 64250, "Reserved (GREASE)" }, /* RFC 8701 */
557 | { 0xFF01, "arbitrary_explicit_prime_curves" },
558 | { 0xFF02, "arbitrary_explicit_char2_curves" },
559 | /* Below are various unofficial values that have been used for testing. */
560 | /* PQC key exchange algorithms from OQS-OpenSSL,
561 | see https://github.com/open-quantum-safe/oqs-provider/blob/main/oqs-template/oqs-kem-info.md
562 | These use IANA unassigned values and this list may be incomplete.
563 | */
564 | { 0x2F00, "p256_frodo640aes" },
565 | { 0x2F01, "p256_frodo640shake" },
566 | { 0x2F02, "p384_frodo976aes" },
567 | { 0x0203, "frodo976shake" },
568 | { 0x2F03, "p384_frodo976shake" },
569 | { 0x0204, "frodo1344aes" },
570 | { 0x2F04, "p521_frodo1344aes" },
571 | { 0x0205, "frodo1344shake" },
572 | { 0x2F05, "p521_frodo1344shake" },
573 | { 0x023A, "kyber512" },
574 | { 0x2F3A, "p256_kyber512" },
575 | { 0x023C, "kyber768" },
576 | { 0x2F3C, "p384_kyber768" },
577 | { 0x023D, "kyber1024" },
578 | { 0x2F3D, "p521_kyber1024" },
579 | { 0x0214, "ntru_hps2048509" },
580 | { 0x2F14, "p256_ntru_hps2048509" },
581 | { 0x0215, "ntru_hps2048677" },
582 | { 0x2F15, "p384_ntru_hps2048677" },
583 | { 0x0216, "ntru_hps4096821" },
584 | { 0x2F16, "p521_ntru_hps4096821" },
585 | { 0x0245, "ntru_hps40961229" },
586 | { 0x2F45, "p521_ntru_hps40961229" },
587 | { 0x0217, "ntru_hrss701" },
588 | { 0x2F17, "p384_ntru_hrss701" },
589 | { 0x0246, "ntru_hrss1373" },
590 | { 0x2F46, "p521_ntru_hrss1373" },
591 | { 0x0218, "lightsaber" },
592 | { 0x2F18, "p256_lightsaber" },
593 | { 0x0219, "saber" },
594 | { 0x2F19, "p384_saber" },
595 | { 0x021A, "firesaber" },
596 | { 0x2F1A, "p521_firesaber" },
597 | { 0x021B, "sidhp434" },
598 | { 0x2F1B, "p256_sidhp434" },
599 | { 0x021C, "sidhp503" },
600 | { 0x2F1C, "p256_sidhp503" },
601 | { 0x021D, "sidhp610" },
602 | { 0x2F1D, "p384_sidhp610" },
603 | { 0x021E, "sidhp751" },
604 | { 0x2F1E, "p521_sidhp751" },
605 | { 0x021F, "sikep434" },
606 | { 0x2F1F, "p256_sikep434" },
607 | { 0x0220, "sikep503" },
608 | { 0x2F20, "p256_sikep503" },
609 | { 0x0221, "sikep610" },
610 | { 0x2F21, "p384_sikep610" },
611 | { 0x0222, "sikep751" },
612 | { 0x2F22, "p521_sikep751" },
613 | { 0x0238, "bikel1" },
614 | { 0x2F38, "p256_bikel1" },
615 | { 0x023B, "bikel3" },
616 | { 0x2F3B, "p384_bikel3" },
617 | { 0x023E, "kyber90s512" },
618 | { 0x2F3E, "p256_kyber90s512" },
619 | { 0x023F, "kyber90s768" },
620 | { 0x2F3F, "p384_kyber90s768" },
621 | { 0x0240, "kyber90s1024" },
622 | { 0x2F40, "p521_kyber90s1024" },
623 | { 0x022C, "hqc128" },
624 | { 0x2F2C, "p256_hqc128" },
625 | { 0x022D, "hqc192" },
626 | { 0x2F2D, "p384_hqc192" },
627 | { 0x022E, "hqc256" },
628 | { 0x2F2E, "p521_hqc256" },
629 | { 0x022F, "ntrulpr653" },
630 | { 0x2F2F, "p256_ntrulpr653" },
631 | { 0x0230, "ntrulpr761" },
632 | { 0x2F43, "p256_ntrulpr761" },
633 | { 0x0231, "ntrulpr857" },
634 | { 0x2F31, "p384_ntrulpr857" },
635 | { 0x0241, "ntrulpr1277" },
636 | { 0x2F41, "p521_ntrulpr1277" },
637 | { 0x0232, "sntrup653" },
638 | { 0x2F32, "p256_sntrup653" },
639 | { 0x0233, "sntrup761" },
640 | { 0x2F44, "p256_sntrup761" },
641 | { 0x0234, "sntrup857" },
642 | { 0x2F34, "p384_sntrup857" },
643 | { 0x0242, "sntrup1277" },
644 | { 0x2F42, "p521_sntrup1277" },
645 | /* Other PQ key exchange algorithms, using Reserved for Private Use values
646 | https://blog.cloudflare.com/post-quantum-for-all
647 | https://www.ietf.org/archive/id/draft-tls-westerbaan-xyber768d00-02.txt */
648 | { 0xFE30, "X25519Kyber512Draft00 (OBSOLETE)" },
649 | { 0xFE31, "X25519Kyber768Draft00 (OBSOLETE)" },
650 | { 0x00, NULL((void*)0) }
651 | };
652 |
653 | const value_string ssl_curve_types[] = {
654 | { 1, "explicit_prime" },
655 | { 2, "explicit_char2" },
656 | { 3, "named_curve" },
657 | { 0x00, NULL((void*)0) }
658 | };
659 |
660 | const value_string ssl_extension_ec_point_formats[] = {
661 | { 0, "uncompressed" },
662 | { 1, "ansiX962_compressed_prime" },
663 | { 2, "ansiX962_compressed_char2" },
664 | { 0x00, NULL((void*)0) }
665 | };
666 |
667 | const value_string ssl_20_certificate_type[] = {
668 | { 0x00, "N/A" },
669 | { 0x01, "X.509 Certificate" },
670 | { 0x00, NULL((void*)0) }
671 | };
672 |
673 | const value_string ssl_31_content_type[] = {
674 | { 20, "Change Cipher Spec" },
675 | { 21, "Alert" },
676 | { 22, "Handshake" },
677 | { 23, "Application Data" },
678 | { 24, "Heartbeat" },
679 | { 25, "Connection ID" },
680 | { 0x00, NULL((void*)0) }
681 | };
682 |
683 | #if 0
684 | /* XXX - would be used if we dissected the body of a Change Cipher Spec
685 | message. */
686 | const value_string ssl_31_change_cipher_spec[] = {
687 | { 1, "Change Cipher Spec" },
688 | { 0x00, NULL((void*)0) }
689 | };
690 | #endif
691 |
692 | const value_string ssl_31_alert_level[] = {
693 | { 1, "Warning" },
694 | { 2, "Fatal" },
695 | { 0x00, NULL((void*)0) }
696 | };
697 |
698 | const value_string ssl_31_alert_description[] = {
699 | { 0, "Close Notify" },
700 | { 1, "End of Early Data" },
701 | { 10, "Unexpected Message" },
702 | { 20, "Bad Record MAC" },
703 | { 21, "Decryption Failed" },
704 | { 22, "Record Overflow" },
705 | { 30, "Decompression Failure" },
706 | { 40, "Handshake Failure" },
707 | { 41, "No Certificate" },
708 | { 42, "Bad Certificate" },
709 | { 43, "Unsupported Certificate" },
710 | { 44, "Certificate Revoked" },
711 | { 45, "Certificate Expired" },
712 | { 46, "Certificate Unknown" },
713 | { 47, "Illegal Parameter" },
714 | { 48, "Unknown CA" },
715 | { 49, "Access Denied" },
716 | { 50, "Decode Error" },
717 | { 51, "Decrypt Error" },
718 | { 60, "Export Restriction" },
719 | { 70, "Protocol Version" },
720 | { 71, "Insufficient Security" },
721 | { 80, "Internal Error" },
722 | { 86, "Inappropriate Fallback" },
723 | { 90, "User Canceled" },
724 | { 100, "No Renegotiation" },
725 | { 109, "Missing Extension" },
726 | { 110, "Unsupported Extension" },
727 | { 111, "Certificate Unobtainable" },
728 | { 112, "Unrecognized Name" },
729 | { 113, "Bad Certificate Status Response" },
730 | { 114, "Bad Certificate Hash Value" },
731 | { 115, "Unknown PSK Identity" },
732 | { 116, "Certificate Required" },
733 | { 120, "No application Protocol" },
734 | { 121, "ECH Required" },
735 | { 0x00, NULL((void*)0) }
736 | };
737 |
738 | const value_string ssl_31_handshake_type[] = {
739 | { SSL_HND_HELLO_REQUEST, "Hello Request" },
740 | { SSL_HND_CLIENT_HELLO, "Client Hello" },
741 | { SSL_HND_SERVER_HELLO, "Server Hello" },
742 | { SSL_HND_HELLO_VERIFY_REQUEST, "Hello Verify Request"},
743 | { SSL_HND_NEWSESSION_TICKET, "New Session Ticket" },
744 | { SSL_HND_END_OF_EARLY_DATA, "End of Early Data" },
745 | { SSL_HND_HELLO_RETRY_REQUEST, "Hello Retry Request" },
746 | { SSL_HND_ENCRYPTED_EXTENSIONS, "Encrypted Extensions" },
747 | { SSL_HND_CERTIFICATE, "Certificate" },
748 | { SSL_HND_SERVER_KEY_EXCHG, "Server Key Exchange" },
749 | { SSL_HND_CERT_REQUEST, "Certificate Request" },
750 | { SSL_HND_SVR_HELLO_DONE, "Server Hello Done" },
751 | { SSL_HND_CERT_VERIFY, "Certificate Verify" },
752 | { SSL_HND_CLIENT_KEY_EXCHG, "Client Key Exchange" },
753 | { SSL_HND_FINISHED, "Finished" },
754 | { SSL_HND_CERT_URL, "Client Certificate URL" },
755 | { SSL_HND_CERT_STATUS, "Certificate Status" },
756 | { SSL_HND_SUPPLEMENTAL_DATA, "Supplemental Data" },
757 | { SSL_HND_KEY_UPDATE, "Key Update" },
758 | { SSL_HND_COMPRESSED_CERTIFICATE, "Compressed Certificate" },
759 | { SSL_HND_ENCRYPTED_EXTS, "Encrypted Extensions" },
760 | { 0x00, NULL((void*)0) }
761 | };
762 |
763 | const value_string tls_heartbeat_type[] = {
764 | { 1, "Request" },
765 | { 2, "Response" },
766 | { 0x00, NULL((void*)0) }
767 | };
768 |
769 | const value_string tls_heartbeat_mode[] = {
770 | { 1, "Peer allowed to send requests" },
771 | { 2, "Peer not allowed to send requests" },
772 | { 0x00, NULL((void*)0) }
773 | };
774 |
775 | const value_string ssl_31_compression_method[] = {
776 | { 0, "null" },
777 | { 1, "DEFLATE" },
778 | { 64, "LZS" },
779 | { 0x00, NULL((void*)0) }
780 | };
781 |
782 | #if 0
783 | /* XXX - would be used if we dissected a Signature, as would be
784 | seen in a server key exchange or certificate verify message. */
785 | const value_string ssl_31_key_exchange_algorithm[] = {
786 | { 0, "RSA" },
787 | { 1, "Diffie Hellman" },
788 | { 0x00, NULL((void*)0) }
789 | };
790 |
791 | const value_string ssl_31_signature_algorithm[] = {
792 | { 0, "Anonymous" },
793 | { 1, "RSA" },
794 | { 2, "DSA" },
795 | { 0x00, NULL((void*)0) }
796 | };
797 | #endif
798 |
799 | const value_string ssl_31_client_certificate_type[] = {
800 | { 1, "RSA Sign" },
801 | { 2, "DSS Sign" },
802 | { 3, "RSA Fixed DH" },
803 | { 4, "DSS Fixed DH" },
804 | /* GOST certificate types */
805 | /* Section 3.5 of draft-chudov-cryptopro-cptls-04 */
806 | { 21, "GOST R 34.10-94" },
807 | { 22, "GOST R 34.10-2001" },
808 | /* END GOST certificate types */
809 | { 64, "ECDSA Sign" },
810 | { 65, "RSA Fixed ECDH" },
811 | { 66, "ECDSA Fixed ECDH" },
812 | { 80, "IBC Params" },
813 | { 0x00, NULL((void*)0) }
814 | };
815 |
816 | #if 0
817 | /* XXX - would be used if we dissected exchange keys, as would be
818 | seen in a client key exchange message. */
819 | const value_string ssl_31_public_value_encoding[] = {
820 | { 0, "Implicit" },
821 | { 1, "Explicit" },
822 | { 0x00, NULL((void*)0) }
823 | };
824 | #endif
825 |
826 | /* http://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml */
827 | /* Note: sorted by ascending value so value_string_ext fcns can do a binary search */
828 | static const value_string ssl_31_ciphersuite[] = {
829 | /* RFC 2246, RFC 4346, RFC 5246 */
830 | { 0x0000, "TLS_NULL_WITH_NULL_NULL" },
831 | { 0x0001, "TLS_RSA_WITH_NULL_MD5" },
832 | { 0x0002, "TLS_RSA_WITH_NULL_SHA" },
833 | { 0x0003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" },
834 | { 0x0004, "TLS_RSA_WITH_RC4_128_MD5" },
835 | { 0x0005, "TLS_RSA_WITH_RC4_128_SHA" },
836 | { 0x0006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" },
837 | { 0x0007, "TLS_RSA_WITH_IDEA_CBC_SHA" },
838 | { 0x0008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" },
839 | { 0x0009, "TLS_RSA_WITH_DES_CBC_SHA" },
840 | { 0x000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" },
841 | { 0x000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" },
842 | { 0x000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" },
843 | { 0x000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" },
844 | { 0x000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" },
845 | { 0x000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" },
846 | { 0x0010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" },
847 | { 0x0011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" },
848 | { 0x0012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" },
849 | { 0x0013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" },
850 | { 0x0014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" },
851 | { 0x0015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" },
852 | { 0x0016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" },
853 | { 0x0017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" },
854 | { 0x0018, "TLS_DH_anon_WITH_RC4_128_MD5" },
855 | { 0x0019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" },
856 | { 0x001a, "TLS_DH_anon_WITH_DES_CBC_SHA" },
857 | { 0x001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" },
858 |
859 | { 0x001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" },
860 | { 0x001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" },
861 | #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
862 | to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
863 | of the ietf-tls list */
864 | { 0x001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" },
865 | #endif
866 | /* RFC 2712 */
867 | { 0x001E, "TLS_KRB5_WITH_DES_CBC_SHA" },
868 | { 0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA" },
869 | { 0x0020, "TLS_KRB5_WITH_RC4_128_SHA" },
870 | { 0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA" },
871 | { 0x0022, "TLS_KRB5_WITH_DES_CBC_MD5" },
872 | { 0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5" },
873 | { 0x0024, "TLS_KRB5_WITH_RC4_128_MD5" },
874 | { 0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5" },
875 | { 0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA" },
876 | { 0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA" },
877 | { 0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA" },
878 | { 0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5" },
879 | { 0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5" },
880 | { 0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5" },
881 | /* RFC 4785 */
882 | { 0x002C, "TLS_PSK_WITH_NULL_SHA" },
883 | { 0x002D, "TLS_DHE_PSK_WITH_NULL_SHA" },
884 | { 0x002E, "TLS_RSA_PSK_WITH_NULL_SHA" },
885 | /* RFC 5246 */
886 | { 0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA" },
887 | { 0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" },
888 | { 0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" },
889 | { 0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" },
890 | { 0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" },
891 | { 0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" },
892 | { 0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA" },
893 | { 0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" },
894 | { 0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" },
895 | { 0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" },
896 | { 0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" },
897 | { 0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" },
898 | { 0x003B, "TLS_RSA_WITH_NULL_SHA256" },
899 | { 0x003C, "TLS_RSA_WITH_AES_128_CBC_SHA256" },
900 | { 0x003D, "TLS_RSA_WITH_AES_256_CBC_SHA256" },
901 | { 0x003E, "TLS_DH_DSS_WITH_AES_128_CBC_SHA256" },
902 | { 0x003F, "TLS_DH_RSA_WITH_AES_128_CBC_SHA256" },
903 | { 0x0040, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA256" },
904 | /* RFC 4132 */
905 | { 0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" },
906 | { 0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" },
907 | { 0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" },
908 | { 0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" },
909 | { 0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" },
910 | { 0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" },
911 | /* 0x00,0x60-66 Reserved to avoid conflicts with widely deployed implementations */
912 | /* --- ??? --- */
913 | { 0x0060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" },
914 | { 0x0061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" },
915 | /* draft-ietf-tls-56-bit-ciphersuites-01.txt */
916 | { 0x0062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" },
917 | { 0x0063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" },
918 | { 0x0064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" },
919 | { 0x0065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" },
920 | { 0x0066, "TLS_DHE_DSS_WITH_RC4_128_SHA" },
921 | /* --- ??? ---*/
922 | { 0x0067, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256" },
923 | { 0x0068, "TLS_DH_DSS_WITH_AES_256_CBC_SHA256" },
924 | { 0x0069, "TLS_DH_RSA_WITH_AES_256_CBC_SHA256" },
925 | { 0x006A, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256" },
926 | { 0x006B, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256" },
927 | { 0x006C, "TLS_DH_anon_WITH_AES_128_CBC_SHA256" },
928 | { 0x006D, "TLS_DH_anon_WITH_AES_256_CBC_SHA256" },
929 | /* draft-chudov-cryptopro-cptls-04.txt */
930 | { 0x0080, "TLS_GOSTR341094_WITH_28147_CNT_IMIT" },
931 | { 0x0081, "TLS_GOSTR341001_WITH_28147_CNT_IMIT" },
932 | { 0x0082, "TLS_GOSTR341094_WITH_NULL_GOSTR3411" },
933 | { 0x0083, "TLS_GOSTR341001_WITH_NULL_GOSTR3411" },
934 | /* RFC 4132 */
935 | { 0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" },
936 | { 0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" },
937 | { 0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" },
938 | { 0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" },
939 | { 0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" },
940 | { 0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" },
941 | /* RFC 4279 */
942 | { 0x008A, "TLS_PSK_WITH_RC4_128_SHA" },
943 | { 0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA" },
944 | { 0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA" },
945 | { 0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA" },
946 | { 0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA" },
947 | { 0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA" },
948 | { 0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA" },
949 | { 0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA" },
950 | { 0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA" },
951 | { 0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA" },
952 | { 0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA" },
953 | { 0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA" },
954 | /* RFC 4162 */
955 | { 0x0096, "TLS_RSA_WITH_SEED_CBC_SHA" },
956 | { 0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA" },
957 | { 0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA" },
958 | { 0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA" },
959 | { 0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA" },
960 | { 0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA" },
961 | /* RFC 5288 */
962 | { 0x009C, "TLS_RSA_WITH_AES_128_GCM_SHA256" },
963 | { 0x009D, "TLS_RSA_WITH_AES_256_GCM_SHA384" },
964 | { 0x009E, "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256" },
965 | { 0x009F, "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384" },
966 | { 0x00A0, "TLS_DH_RSA_WITH_AES_128_GCM_SHA256" },
967 | { 0x00A1, "TLS_DH_RSA_WITH_AES_256_GCM_SHA384" },
968 | { 0x00A2, "TLS_DHE_DSS_WITH_AES_128_GCM_SHA256" },
969 | { 0x00A3, "TLS_DHE_DSS_WITH_AES_256_GCM_SHA384" },
970 | { 0x00A4, "TLS_DH_DSS_WITH_AES_128_GCM_SHA256" },
971 | { 0x00A5, "TLS_DH_DSS_WITH_AES_256_GCM_SHA384" },
972 | { 0x00A6, "TLS_DH_anon_WITH_AES_128_GCM_SHA256" },
973 | { 0x00A7, "TLS_DH_anon_WITH_AES_256_GCM_SHA384" },
974 | /* RFC 5487 */
975 | { 0x00A8, "TLS_PSK_WITH_AES_128_GCM_SHA256" },
976 | { 0x00A9, "TLS_PSK_WITH_AES_256_GCM_SHA384" },
977 | { 0x00AA, "TLS_DHE_PSK_WITH_AES_128_GCM_SHA256" },
978 | { 0x00AB, "TLS_DHE_PSK_WITH_AES_256_GCM_SHA384" },
979 | { 0x00AC, "TLS_RSA_PSK_WITH_AES_128_GCM_SHA256" },
980 | { 0x00AD, "TLS_RSA_PSK_WITH_AES_256_GCM_SHA384" },
981 | { 0x00AE, "TLS_PSK_WITH_AES_128_CBC_SHA256" },
982 | { 0x00AF, "TLS_PSK_WITH_AES_256_CBC_SHA384" },
983 | { 0x00B0, "TLS_PSK_WITH_NULL_SHA256" },
984 | { 0x00B1, "TLS_PSK_WITH_NULL_SHA384" },
985 | { 0x00B2, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA256" },
986 | { 0x00B3, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA384" },
987 | { 0x00B4, "TLS_DHE_PSK_WITH_NULL_SHA256" },
988 | { 0x00B5, "TLS_DHE_PSK_WITH_NULL_SHA384" },
989 | { 0x00B6, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA256" },
990 | { 0x00B7, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA384" },
991 | { 0x00B8, "TLS_RSA_PSK_WITH_NULL_SHA256" },
992 | { 0x00B9, "TLS_RSA_PSK_WITH_NULL_SHA384" },
993 | /* From RFC 5932 */
994 | { 0x00BA, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
995 | { 0x00BB, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256" },
996 | { 0x00BC, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
997 | { 0x00BD, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256" },
998 | { 0x00BE, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
999 | { 0x00BF, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256" },
1000 | { 0x00C0, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
1001 | { 0x00C1, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256" },
1002 | { 0x00C2, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
1003 | { 0x00C3, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256" },
1004 | { 0x00C4, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256" },
1005 | { 0x00C5, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256" },
1006 | /* RFC 8998 */
1007 | { 0x00C6, "TLS_SM4_GCM_SM3" },
1008 | { 0x00C7, "TLS_SM4_CCM_SM3" },
1009 | /* 0x00,0xC8-FE Unassigned */
1010 | /* From RFC 5746 */
1011 | { 0x00FF, "TLS_EMPTY_RENEGOTIATION_INFO_SCSV" },
1012 | /* RFC 8701 */
1013 | { 0x0A0A, "Reserved (GREASE)" },
1014 | /* RFC 8446 */
1015 | { 0x1301, "TLS_AES_128_GCM_SHA256" },
1016 | { 0x1302, "TLS_AES_256_GCM_SHA384" },
1017 | { 0x1303, "TLS_CHACHA20_POLY1305_SHA256" },
1018 | { 0x1304, "TLS_AES_128_CCM_SHA256" },
1019 | { 0x1305, "TLS_AES_128_CCM_8_SHA256" },
1020 | /* RFC 8701 */
1021 | { 0x1A1A, "Reserved (GREASE)" },
1022 | { 0x2A2A, "Reserved (GREASE)" },
1023 | { 0x3A3A, "Reserved (GREASE)" },
1024 | { 0x4A4A, "Reserved (GREASE)" },
1025 | /* From RFC 7507 */
1026 | { 0x5600, "TLS_FALLBACK_SCSV" },
1027 | /* RFC 8701 */
1028 | { 0x5A5A, "Reserved (GREASE)" },
1029 | { 0x6A6A, "Reserved (GREASE)" },
1030 | { 0x7A7A, "Reserved (GREASE)" },
1031 | { 0x8A8A, "Reserved (GREASE)" },
1032 | { 0x9A9A, "Reserved (GREASE)" },
1033 | { 0xAAAA, "Reserved (GREASE)" },
1034 | { 0xBABA, "Reserved (GREASE)" },
1035 | /* From RFC 4492 */
1036 | { 0xc001, "TLS_ECDH_ECDSA_WITH_NULL_SHA" },
1037 | { 0xc002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" },
1038 | { 0xc003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" },
1039 | { 0xc004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" },
1040 | { 0xc005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" },
1041 | { 0xc006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA" },
1042 | { 0xc007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA" },
1043 | { 0xc008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA" },
1044 | { 0xc009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA" },
1045 | { 0xc00a, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" },
1046 | { 0xc00b, "TLS_ECDH_RSA_WITH_NULL_SHA" },
1047 | { 0xc00c, "TLS_ECDH_RSA_WITH_RC4_128_SHA" },
1048 | { 0xc00d, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA" },
1049 | { 0xc00e, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA" },
1050 | { 0xc00f, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA" },
1051 | { 0xc010, "TLS_ECDHE_RSA_WITH_NULL_SHA" },
1052 | { 0xc011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA" },
1053 | { 0xc012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA" },
1054 | { 0xc013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA" },
1055 | { 0xc014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" },
1056 | { 0xc015, "TLS_ECDH_anon_WITH_NULL_SHA" },
1057 | { 0xc016, "TLS_ECDH_anon_WITH_RC4_128_SHA" },
1058 | { 0xc017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA" },
1059 | { 0xc018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA" },
1060 | { 0xc019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA" },
1061 | /* RFC 5054 */
1062 | { 0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA" },
1063 | { 0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA" },
1064 | { 0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA" },
1065 | { 0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA" },
1066 | { 0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA" },
1067 | { 0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA" },
1068 | { 0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA" },
1069 | { 0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA" },
1070 | { 0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA" },
1071 | /* RFC 5589 */
1072 | { 0xC023, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256" },
1073 | { 0xC024, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384" },
1074 | { 0xC025, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256" },
1075 | { 0xC026, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384" },
1076 | { 0xC027, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256" },
1077 | { 0xC028, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384" },
1078 | { 0xC029, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256" },
1079 | { 0xC02A, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384" },
1080 | { 0xC02B, "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" },
1081 | { 0xC02C, "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384" },
1082 | { 0xC02D, "TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256" },
1083 | { 0xC02E, "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384" },
1084 | { 0xC02F, "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256" },
1085 | { 0xC030, "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384" },
1086 | { 0xC031, "TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256" },
1087 | { 0xC032, "TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384" },
1088 | /* RFC 5489 */
1089 | { 0xC033, "TLS_ECDHE_PSK_WITH_RC4_128_SHA" },
1090 | { 0xC034, "TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA" },
1091 | { 0xC035, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA" },
1092 | { 0xC036, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA" },
1093 | { 0xC037, "TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256" },
1094 | { 0xC038, "TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384" },
1095 | { 0xC039, "TLS_ECDHE_PSK_WITH_NULL_SHA" },
1096 | { 0xC03A, "TLS_ECDHE_PSK_WITH_NULL_SHA256" },
1097 | { 0xC03B, "TLS_ECDHE_PSK_WITH_NULL_SHA384" },
1098 | /* RFC 6209 */
1099 | { 0xC03C, "TLS_RSA_WITH_ARIA_128_CBC_SHA256" },
1100 | { 0xC03D, "TLS_RSA_WITH_ARIA_256_CBC_SHA384" },
1101 | { 0xC03E, "TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256" },
1102 | { 0xC03F, "TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384" },
1103 | { 0xC040, "TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256" },
1104 | { 0xC041, "TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384" },
1105 | { 0xC042, "TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256" },
1106 | { 0xC043, "TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384" },
1107 | { 0xC044, "TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256" },
1108 | { 0xC045, "TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384" },
1109 | { 0xC046, "TLS_DH_anon_WITH_ARIA_128_CBC_SHA256" },
1110 | { 0xC047, "TLS_DH_anon_WITH_ARIA_256_CBC_SHA384" },
1111 | { 0xC048, "TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256" },
1112 | { 0xC049, "TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384" },
1113 | { 0xC04A, "TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256" },
1114 | { 0xC04B, "TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384" },
1115 | { 0xC04C, "TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256" },
1116 | { 0xC04D, "TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384" },
1117 | { 0xC04E, "TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256" },
1118 | { 0xC04F, "TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384" },
1119 | { 0xC050, "TLS_RSA_WITH_ARIA_128_GCM_SHA256" },
1120 | { 0xC051, "TLS_RSA_WITH_ARIA_256_GCM_SHA384" },
1121 | { 0xC052, "TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256" },
1122 | { 0xC053, "TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384" },
1123 | { 0xC054, "TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256" },
1124 | { 0xC055, "TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384" },
1125 | { 0xC056, "TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256" },
1126 | { 0xC057, "TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384" },
1127 | { 0xC058, "TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256" },
1128 | { 0xC059, "TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384" },
1129 | { 0xC05A, "TLS_DH_anon_WITH_ARIA_128_GCM_SHA256" },
1130 | { 0xC05B, "TLS_DH_anon_WITH_ARIA_256_GCM_SHA384" },
1131 | { 0xC05C, "TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256" },
1132 | { 0xC05D, "TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384" },
1133 | { 0xC05E, "TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256" },
1134 | { 0xC05F, "TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384" },
1135 | { 0xC060, "TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256" },
1136 | { 0xC061, "TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384" },
1137 | { 0xC062, "TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256" },
1138 | { 0xC063, "TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384" },
1139 | { 0xC064, "TLS_PSK_WITH_ARIA_128_CBC_SHA256" },
1140 | { 0xC065, "TLS_PSK_WITH_ARIA_256_CBC_SHA384" },
1141 | { 0xC066, "TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256" },
1142 | { 0xC067, "TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384" },
1143 | { 0xC068, "TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256" },
1144 | { 0xC069, "TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384" },
1145 | { 0xC06A, "TLS_PSK_WITH_ARIA_128_GCM_SHA256" },
1146 | { 0xC06B, "TLS_PSK_WITH_ARIA_256_GCM_SHA384" },
1147 | { 0xC06C, "TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256" },
1148 | { 0xC06D, "TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384" },
1149 | { 0xC06E, "TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256" },
1150 | { 0xC06F, "TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384" },
1151 | { 0xC070, "TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256" },
1152 | { 0xC071, "TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384" },
1153 | /* RFC 6367 */
1154 | { 0xC072, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256" },
1155 | { 0xC073, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384" },
1156 | { 0xC074, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256" },
1157 | { 0xC075, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384" },
1158 | { 0xC076, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
1159 | { 0xC077, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384" },
1160 | { 0xC078, "TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256" },
1161 | { 0xC079, "TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384" },
1162 | { 0xC07A, "TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256" },
1163 | { 0xC07B, "TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384" },
1164 | { 0xC07C, "TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256" },
1165 | { 0xC07D, "TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384" },
1166 | { 0xC07E, "TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256" },
1167 | { 0xC07F, "TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384" },
1168 | { 0xC080, "TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256" },
1169 | { 0xC081, "TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384" },
1170 | { 0xC082, "TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256" },
1171 | { 0xC083, "TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384" },
1172 | { 0xC084, "TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256" },
1173 | { 0xC085, "TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384" },
1174 | { 0xC086, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256" },
1175 | { 0xC087, "TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384" },
1176 | { 0xC088, "TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256" },
1177 | { 0xC089, "TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384" },
1178 | { 0xC08A, "TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256" },
1179 | { 0xC08B, "TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384" },
1180 | { 0xC08C, "TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256" },
1181 | { 0xC08D, "TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384" },
1182 | { 0xC08E, "TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256" },
1183 | { 0xC08F, "TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384" },
1184 | { 0xC090, "TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256" },
1185 | { 0xC091, "TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384" },
1186 | { 0xC092, "TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256" },
1187 | { 0xC093, "TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384" },
1188 | { 0xC094, "TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256" },
1189 | { 0xC095, "TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384" },
1190 | { 0xC096, "TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256" },
1191 | { 0xC097, "TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384" },
1192 | { 0xC098, "TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256" },
1193 | { 0xC099, "TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384" },
1194 | { 0xC09A, "TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256" },
1195 | { 0xC09B, "TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384" },
1196 | /* RFC 6655 */
1197 | { 0xC09C, "TLS_RSA_WITH_AES_128_CCM" },
1198 | { 0xC09D, "TLS_RSA_WITH_AES_256_CCM" },
1199 | { 0xC09E, "TLS_DHE_RSA_WITH_AES_128_CCM" },
1200 | { 0xC09F, "TLS_DHE_RSA_WITH_AES_256_CCM" },
1201 | { 0xC0A0, "TLS_RSA_WITH_AES_128_CCM_8" },
1202 | { 0xC0A1, "TLS_RSA_WITH_AES_256_CCM_8" },
1203 | { 0xC0A2, "TLS_DHE_RSA_WITH_AES_128_CCM_8" },
1204 | { 0xC0A3, "TLS_DHE_RSA_WITH_AES_256_CCM_8" },
1205 | { 0xC0A4, "TLS_PSK_WITH_AES_128_CCM" },
1206 | { 0xC0A5, "TLS_PSK_WITH_AES_256_CCM" },
1207 | { 0xC0A6, "TLS_DHE_PSK_WITH_AES_128_CCM" },
1208 | { 0xC0A7, "TLS_DHE_PSK_WITH_AES_256_CCM" },
1209 | { 0xC0A8, "TLS_PSK_WITH_AES_128_CCM_8" },
1210 | { 0xC0A9, "TLS_PSK_WITH_AES_256_CCM_8" },
1211 | { 0xC0AA, "TLS_PSK_DHE_WITH_AES_128_CCM_8" },
1212 | { 0xC0AB, "TLS_PSK_DHE_WITH_AES_256_CCM_8" },
1213 | /* RFC 7251 */
1214 | { 0xC0AC, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM" },
1215 | { 0xC0AD, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM" },
1216 | { 0xC0AE, "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8" },
1217 | { 0xC0AF, "TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8" },
1218 | /* RFC 8492 */
1219 | { 0xC0B0, "TLS_ECCPWD_WITH_AES_128_GCM_SHA256" },
1220 | { 0xC0B1, "TLS_ECCPWD_WITH_AES_256_GCM_SHA384" },
1221 | { 0xC0B2, "TLS_ECCPWD_WITH_AES_128_CCM_SHA256" },
1222 | { 0xC0B3, "TLS_ECCPWD_WITH_AES_256_CCM_SHA384" },
1223 | /* draft-camwinget-tls-ts13-macciphersuites */
1224 | { 0xC0B4, "TLS_SHA256_SHA256" },
1225 | { 0xC0B5, "TLS_SHA384_SHA384" },
1226 | /* https://www.ietf.org/archive/id/draft-cragie-tls-ecjpake-01.txt */
1227 | { 0xC0FF, "TLS_ECJPAKE_WITH_AES_128_CCM_8" },
1228 | /* draft-smyshlyaev-tls12-gost-suites */
1229 | { 0xC100, "TLS_GOSTR341112_256_WITH_KUZNYECHIK_CTR_OMAC" },
1230 | { 0xC101, "TLS_GOSTR341112_256_WITH_MAGMA_CTR_OMAC" },
1231 | { 0xC102, "TLS_GOSTR341112_256_WITH_28147_CNT_IMIT" },
1232 | /* draft-smyshlyaev-tls13-gost-suites */
1233 | { 0xC103, "TLS_GOSTR341112_256_WITH_KUZNYECHIK_MGM_L" },
1234 | { 0xC104, "TLS_GOSTR341112_256_WITH_MAGMA_MGM_L" },
1235 | { 0xC105, "TLS_GOSTR341112_256_WITH_KUZNYECHIK_MGM_S" },
1236 | { 0xC106, "TLS_GOSTR341112_256_WITH_MAGMA_MGM_S" },
1237 | /* RFC 8701 */
1238 | { 0xCACA, "Reserved (GREASE)" },
1239 | /*
1240 | 0xC0,0xAB-FF Unassigned
1241 | 0xC1,0x03-FD,* Unassigned
1242 | 0xFE,0x00-FD Unassigned
1243 | 0xFE,0xFE-FF Reserved to avoid conflicts with widely deployed implementations [Pasi_Eronen]
1244 | 0xFF,0x00-FF Reserved for Private Use [RFC5246]
1245 | */
1246 | /* old numbers used in the beginning
1247 | * https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305 */
1248 | { 0xCC13, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
1249 | { 0xCC14, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
1250 | { 0xCC15, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
1251 | /* RFC 7905 */
1252 | { 0xCCA8, "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
1253 | { 0xCCA9, "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256" },
1254 | { 0xCCAA, "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256" },
1255 | { 0xCCAB, "TLS_PSK_WITH_CHACHA20_POLY1305_SHA256" },
1256 | { 0xCCAC, "TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256" },
1257 | { 0xCCAD, "TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256" },
1258 | { 0xCCAE, "TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256" },
1259 | /* RFC 8442 */
1260 | { 0xD001, "TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256" },
1261 | { 0xD002, "TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384" },
1262 | { 0xD003, "TLS_ECDHE_PSK_WITH_AES_128_CCM_8_SHA256" },
1263 | { 0xD005, "TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256" },
1264 | /* RFC 8701 */
1265 | { 0xDADA, "Reserved (GREASE)" },
1266 | /* GM/T 0024-2014 */
1267 | { 0xe001, "ECDHE_SM1_SM3"},
1268 | { 0xe003, "ECC_SM1_SM3"},
1269 | { 0xe005, "IBSDH_SM1_SM3"},
1270 | { 0xe007, "IBC_SM1_SM3"},
1271 | { 0xe009, "RSA_SM1_SM3"},
1272 | { 0xe00a, "RSA_SM1_SHA1"},
1273 | { 0xe011, "ECDHE_SM4_CBC_SM3"},
1274 | { 0xe013, "ECC_SM4_CBC_SM3"},
1275 | { 0xe015, "IBSDH_SM4_CBC_SM3"},
1276 | { 0xe017, "IBC_SM4_CBC_SM3"},
1277 | { 0xe019, "RSA_SM4_CBC_SM3"},
1278 | { 0xe01a, "RSA_SM4_CBC_SHA1"},
1279 | { 0xe01c, "RSA_SM4_CBC_SHA256"},
1280 | { 0xe051, "ECDHE_SM4_GCM_SM3"},
1281 | { 0xe053, "ECC_SM4_GCM_SM3"},
1282 | { 0xe055, "IBSDH_SM4_GCM_SM3"},
1283 | { 0xe057, "IBC_SM4_GCM_SM3"},
1284 | { 0xe059, "RSA_SM4_GCM_SM3"},
1285 | { 0xe05a, "RSA_SM4_GCM_SHA256"},
1286 | /* https://tools.ietf.org/html/draft-josefsson-salsa20-tls */
1287 | { 0xE410, "TLS_RSA_WITH_ESTREAM_SALSA20_SHA1" },
1288 | { 0xE411, "TLS_RSA_WITH_SALSA20_SHA1" },
1289 | { 0xE412, "TLS_ECDHE_RSA_WITH_ESTREAM_SALSA20_SHA1" },
1290 | { 0xE413, "TLS_ECDHE_RSA_WITH_SALSA20_SHA1" },
1291 | { 0xE414, "TLS_ECDHE_ECDSA_WITH_ESTREAM_SALSA20_SHA1" },
1292 | { 0xE415, "TLS_ECDHE_ECDSA_WITH_SALSA20_SHA1" },
1293 | { 0xE416, "TLS_PSK_WITH_ESTREAM_SALSA20_SHA1" },
1294 | { 0xE417, "TLS_PSK_WITH_SALSA20_SHA1" },
1295 | { 0xE418, "TLS_ECDHE_PSK_WITH_ESTREAM_SALSA20_SHA1" },
1296 | { 0xE419, "TLS_ECDHE_PSK_WITH_SALSA20_SHA1" },
1297 | { 0xE41A, "TLS_RSA_PSK_WITH_ESTREAM_SALSA20_SHA1" },
1298 | { 0xE41B, "TLS_RSA_PSK_WITH_SALSA20_SHA1" },
1299 | { 0xE41C, "TLS_DHE_PSK_WITH_ESTREAM_SALSA20_SHA1" },
1300 | { 0xE41D, "TLS_DHE_PSK_WITH_SALSA20_SHA1" },
1301 | { 0xE41E, "TLS_DHE_RSA_WITH_ESTREAM_SALSA20_SHA1" },
1302 | { 0xE41F, "TLS_DHE_RSA_WITH_SALSA20_SHA1" },
1303 | /* RFC 8701 */
1304 | { 0xEAEA, "Reserved (GREASE)" },
1305 | { 0xFAFA, "Reserved (GREASE)" },
1306 | /* these from http://www.mozilla.org/projects/
1307 | security/pki/nss/ssl/fips-ssl-ciphersuites.html */
1308 | { 0xfefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
1309 | { 0xfeff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
1310 | /* https://datatracker.ietf.org/doc/html/rfc9189 */
1311 | { 0xff85, "TLS_GOSTR341112_256_WITH_28147_CNT_IMIT"},
1312 | { 0xffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
1313 | { 0xffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA" },
1314 | /* note that ciphersuites 0xff00 - 0xffff are private */
1315 | { 0x00, NULL((void*)0) }
1316 | };
1317 |
1318 | value_string_ext ssl_31_ciphersuite_ext = VALUE_STRING_EXT_INIT(ssl_31_ciphersuite){ _try_val_to_str_ext_init, 0, (sizeof (ssl_31_ciphersuite) / sizeof ((ssl_31_ciphersuite)[0]))-1, ssl_31_ciphersuite, "ssl_31_ciphersuite" , ((void*)0) };
1319 |
1320 | /* http://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#tls-extensiontype-values-1 */
1321 | const value_string tls_hello_extension_types[] = {
1322 | { SSL_HND_HELLO_EXT_SERVER_NAME0, "server_name" }, /* RFC 6066 */
1323 | { SSL_HND_HELLO_EXT_MAX_FRAGMENT_LENGTH1, "max_fragment_length" },/* RFC 6066 */
1324 | { SSL_HND_HELLO_EXT_CLIENT_CERTIFICATE_URL2, "client_certificate_url" }, /* RFC 6066 */
1325 | { SSL_HND_HELLO_EXT_TRUSTED_CA_KEYS3, "trusted_ca_keys" }, /* RFC 6066 */
1326 | { SSL_HND_HELLO_EXT_TRUNCATED_HMAC4, "truncated_hmac" }, /* RFC 6066 */
1327 | { SSL_HND_HELLO_EXT_STATUS_REQUEST5, "status_request" }, /* RFC 6066 */
1328 | { SSL_HND_HELLO_EXT_USER_MAPPING6, "user_mapping" }, /* RFC 4681 */
1329 | { SSL_HND_HELLO_EXT_CLIENT_AUTHZ7, "client_authz" }, /* RFC 5878 */
1330 | { SSL_HND_HELLO_EXT_SERVER_AUTHZ8, "server_authz" }, /* RFC 5878 */
1331 | { SSL_HND_HELLO_EXT_CERT_TYPE9, "cert_type" }, /* RFC 6091 */
1332 | { SSL_HND_HELLO_EXT_SUPPORTED_GROUPS10, "supported_groups" }, /* RFC 4492, RFC 7919 */
1333 | { SSL_HND_HELLO_EXT_EC_POINT_FORMATS11, "ec_point_formats" }, /* RFC 4492 */
1334 | { SSL_HND_HELLO_EXT_SRP12, "srp" }, /* RFC 5054 */
1335 | { SSL_HND_HELLO_EXT_SIGNATURE_ALGORITHMS13, "signature_algorithms" }, /* RFC 5246 */
1336 | { SSL_HND_HELLO_EXT_USE_SRTP14, "use_srtp" }, /* RFC 5764 */
1337 | { SSL_HND_HELLO_EXT_HEARTBEAT15, "heartbeat" }, /* RFC 6520 */
1338 | { SSL_HND_HELLO_EXT_ALPN16, "application_layer_protocol_negotiation" }, /* RFC 7301 */
1339 | { SSL_HND_HELLO_EXT_STATUS_REQUEST_V217, "status_request_v2" }, /* RFC 6961 */
1340 | { SSL_HND_HELLO_EXT_SIGNED_CERTIFICATE_TIMESTAMP18, "signed_certificate_timestamp" }, /* RFC 6962 */
1341 | { SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE19, "client_certificate_type" }, /* RFC 7250 */
1342 | { SSL_HND_HELLO_EXT_SERVER_CERT_TYPE20, "server_certificate_type" }, /* RFC 7250 */
1343 | { SSL_HND_HELLO_EXT_PADDING21, "padding" }, /* RFC 7685 */
1344 | { SSL_HND_HELLO_EXT_ENCRYPT_THEN_MAC22, "encrypt_then_mac" }, /* RFC 7366 */
1345 | { SSL_HND_HELLO_EXT_EXTENDED_MASTER_SECRET23, "extended_master_secret" }, /* RFC 7627 */
1346 | { SSL_HND_HELLO_EXT_TOKEN_BINDING24, "token_binding" }, /* https://tools.ietf.org/html/draft-ietf-tokbind-negotiation */
1347 | { SSL_HND_HELLO_EXT_CACHED_INFO25, "cached_info" }, /* RFC 7924 */
1348 | { SSL_HND_HELLO_EXT_COMPRESS_CERTIFICATE27, "compress_certificate" }, /* https://tools.ietf.org/html/draft-ietf-tls-certificate-compression-03 */
1349 | { SSL_HND_HELLO_EXT_RECORD_SIZE_LIMIT28, "record_size_limit" }, /* RFC 8449 */
1350 | { SSL_HND_HELLO_EXT_DELEGATED_CREDENTIALS34, "delegated_credentials" }, /* draft-ietf-tls-subcerts-10.txt */
1351 | { SSL_HND_HELLO_EXT_SESSION_TICKET_TLS35, "session_ticket" }, /* RFC 5077 / RFC 8447 */
1352 | { SSL_HND_HELLO_EXT_KEY_SHARE_OLD40, "Reserved (key_share)" }, /* https://tools.ietf.org/html/draft-ietf-tls-tls13-22 (removed in -23) */
1353 | { SSL_HND_HELLO_EXT_PRE_SHARED_KEY41, "pre_shared_key" }, /* RFC 8446 */
1354 | { SSL_HND_HELLO_EXT_EARLY_DATA42, "early_data" }, /* RFC 8446 */
1355 | { SSL_HND_HELLO_EXT_SUPPORTED_VERSIONS43, "supported_versions" }, /* RFC 8446 */
1356 | { SSL_HND_HELLO_EXT_COOKIE44, "cookie" }, /* RFC 8446 */
1357 | { SSL_HND_HELLO_EXT_PSK_KEY_EXCHANGE_MODES45, "psk_key_exchange_modes" }, /* RFC 8446 */
1358 | { SSL_HND_HELLO_EXT_TICKET_EARLY_DATA_INFO46, "Reserved (ticket_early_data_info)" }, /* draft-ietf-tls-tls13-18 (removed in -19) */
1359 | { SSL_HND_HELLO_EXT_CERTIFICATE_AUTHORITIES47, "certificate_authorities" }, /* RFC 8446 */
1360 | { SSL_HND_HELLO_EXT_OID_FILTERS48, "oid_filters" }, /* RFC 8446 */
1361 | { SSL_HND_HELLO_EXT_POST_HANDSHAKE_AUTH49, "post_handshake_auth" }, /* RFC 8446 */
1362 | { SSL_HND_HELLO_EXT_SIGNATURE_ALGORITHMS_CERT50, "signature_algorithms_cert" }, /* RFC 8446 */
1363 | { SSL_HND_HELLO_EXT_KEY_SHARE51, "key_share" }, /* RFC 8446 */
1364 | { SSL_HND_HELLO_EXT_TRANSPARENCY_INFO52, "transparency_info" }, /* draft-ietf-trans-rfc6962-bis-41 */
1365 | { SSL_HND_HELLO_EXT_CONNECTION_ID_DEPRECATED53, "connection_id (deprecated)" }, /* draft-ietf-tls-dtls-connection-id-07 */
1366 | { SSL_HND_HELLO_EXT_CONNECTION_ID54, "connection_id" }, /* RFC 9146 */
1367 | { SSL_HND_HELLO_EXT_EXTERNAL_ID_HASH55, "external_id_hash" }, /* RFC 8844 */
1368 | { SSL_HND_HELLO_EXT_EXTERNAL_SESSION_ID56, "external_session_id" }, /* RFC 8844 */
1369 | { SSL_HND_HELLO_EXT_QUIC_TRANSPORT_PARAMETERS_V157, "quic_transport_parameters" }, /* draft-ietf-quic-tls-33 */
1370 | { SSL_HND_HELLO_EXT_TICKET_REQUEST58, "ticket_request" }, /* draft-ietf-tls-ticketrequests-07 */
1371 | { SSL_HND_HELLO_EXT_DNSSEC_CHAIN59, "dnssec_chain" }, /* RFC 9102 */
1372 | { SSL_HND_HELLO_EXT_GREASE_0A0A2570, "Reserved (GREASE)" }, /* RFC 8701 */
1373 | { SSL_HND_HELLO_EXT_GREASE_1A1A6682, "Reserved (GREASE)" }, /* RFC 8701 */
1374 | { SSL_HND_HELLO_EXT_GREASE_2A2A10794, "Reserved (GREASE)" }, /* RFC 8701 */
1375 | { SSL_HND_HELLO_EXT_NPN13172, "next_protocol_negotiation"}, /* https://datatracker.ietf.org/doc/html/draft-agl-tls-nextprotoneg-03 */
1376 | { SSL_HND_HELLO_EXT_GREASE_3A3A14906, "Reserved (GREASE)" }, /* RFC 8701 */
1377 | { SSL_HND_HELLO_EXT_ALPS_OLD17513, "application_settings_old" }, /* draft-vvv-tls-alps-01 */
1378 | { SSL_HND_HELLO_EXT_ALPS17613, "application_settings" }, /* draft-vvv-tls-alps-01 */ /* https://chromestatus.com/feature/5149147365900288 */
1379 | { SSL_HND_HELLO_EXT_GREASE_4A4A19018, "Reserved (GREASE)" }, /* RFC 8701 */
1380 | { SSL_HND_HELLO_EXT_GREASE_5A5A23130, "Reserved (GREASE)" }, /* RFC 8701 */
1381 | { SSL_HND_HELLO_EXT_GREASE_6A6A27242, "Reserved (GREASE)" }, /* RFC 8701 */
1382 | { SSL_HND_HELLO_EXT_CHANNEL_ID_OLD30031, "channel_id_old" }, /* https://tools.ietf.org/html/draft-balfanz-tls-channelid-00
1383 | https://twitter.com/ericlaw/status/274237352531083264 */
1384 | { SSL_HND_HELLO_EXT_CHANNEL_ID30032, "channel_id" }, /* https://tools.ietf.org/html/draft-balfanz-tls-channelid-01
1385 | https://code.google.com/p/chromium/codesearch#chromium/src/net/third_party/nss/ssl/sslt.h&l=209 */
1386 | { SSL_HND_HELLO_EXT_RENEGOTIATION_INFO65281, "renegotiation_info" }, /* RFC 5746 */
1387 | { SSL_HND_HELLO_EXT_GREASE_7A7A31354, "Reserved (GREASE)" }, /* RFC 8701 */
1388 | { SSL_HND_HELLO_EXT_GREASE_8A8A35466, "Reserved (GREASE)" }, /* RFC 8701 */
1389 | { SSL_HND_HELLO_EXT_GREASE_9A9A39578, "Reserved (GREASE)" }, /* RFC 8701 */
1390 | { SSL_HND_HELLO_EXT_GREASE_AAAA43690, "Reserved (GREASE)" }, /* RFC 8701 */
1391 | { SSL_HND_HELLO_EXT_GREASE_BABA47802, "Reserved (GREASE)" }, /* RFC 8701 */
1392 | { SSL_HND_HELLO_EXT_GREASE_CACA51914, "Reserved (GREASE)" }, /* RFC 8701 */
1393 | { SSL_HND_HELLO_EXT_GREASE_DADA56026, "Reserved (GREASE)" }, /* RFC 8701 */
1394 | { SSL_HND_HELLO_EXT_GREASE_EAEA60138, "Reserved (GREASE)" }, /* RFC 8701 */
1395 | { SSL_HND_HELLO_EXT_GREASE_FAFA64250, "Reserved (GREASE)" }, /* RFC 8701 */
1396 | { SSL_HND_HELLO_EXT_QUIC_TRANSPORT_PARAMETERS65445, "quic_transport_parameters (drafts version)" }, /* https://tools.ietf.org/html/draft-ietf-quic-tls */
1397 | { SSL_HND_HELLO_EXT_ENCRYPTED_SERVER_NAME65486, "encrypted_server_name" }, /* https://tools.ietf.org/html/draft-ietf-tls-esni-01 */
1398 | { SSL_HND_HELLO_EXT_ENCRYPTED_CLIENT_HELLO65037, "encrypted_client_hello" }, /* https://datatracker.ietf.org/doc/draft-ietf-tls-esni/17/ */
1399 | { SSL_HND_HELLO_EXT_ECH_OUTER_EXTENSIONS64768, "ech_outer_extensions" }, /* https://datatracker.ietf.org/doc/draft-ietf-tls-esni/17/ */
1400 | { 0, NULL((void*)0) }
1401 | };
1402 |
1403 | const value_string tls_hello_ext_server_name_type_vs[] = {
1404 | { 0, "host_name" },
1405 | { 0, NULL((void*)0) }
1406 | };
1407 |
1408 | /* RFC 6066 Section 4 */
1409 | const value_string tls_hello_ext_max_fragment_length[] = {
1410 | { 1, "512" }, // 2^9
1411 | { 2, "1024" }, // 2^10
1412 | { 3, "2048" }, // 2^11
1413 | { 4, "4096" }, // 2^12
1414 | { 0, NULL((void*)0) }
1415 | };
1416 |
1417 | /* RFC 8446 Section 4.2.9 */
1418 | const value_string tls_hello_ext_psk_ke_mode[] = {
1419 | { 0, "PSK-only key establishment (psk_ke)" },
1420 | { 1, "PSK with (EC)DHE key establishment (psk_dhe_ke)" },
1421 | { 0, NULL((void*)0) }
1422 | };
1423 |
1424 | /* RFC 6066 Section 6 */
1425 | const value_string tls_hello_ext_trusted_ca_key_type[] = {
1426 | {0, "pre_agreed"},
1427 | {1, "key_sha1_hash"},
1428 | {2, "x509_name"},
1429 | {3, "cert_sha1_hash"},
1430 | {0, NULL((void*)0)}
1431 | };
1432 |
1433 | const value_string tls13_key_update_request[] = {
1434 | { 0, "update_not_requested" },
1435 | { 1, "update_requested" },
1436 | { 0, NULL((void*)0) }
1437 | };
1438 |
1439 | /* RFC 5246 7.4.1.4.1 */
1440 | /* https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml */
1441 | /* Note that the TLS 1.3 SignatureScheme registry reserves all values
1442 | * with first octet 0x00-0x06 and all values with second octet 0x00-0x03
1443 | * for backwards compatibility with TLS 1.2 SignatureAndHashAlgorithm.
1444 | *
1445 | * RFC 8422 and RFC 9189 add official support in TLS 1.2 for some algorithms
1446 | * originally defined for TLS 1.3, and extend the TLS SignatureAlgorithm
1447 | * and TLS HashAlgorithm registries, but the new values are not compatible
1448 | * with all of the TLS 1.3-only SignatureSchemes. Adding those values could
1449 | * cause confusion if used to interpret one of those schemes in a
1450 | * signature_algorithms extension offered in a TLS 1.3 ClientHello.
1451 | */
1452 | const value_string tls_hash_algorithm[] = {
1453 | { 0, "None" },
1454 | { 1, "MD5" },
1455 | { 2, "SHA1" },
1456 | { 3, "SHA224" },
1457 | { 4, "SHA256" },
1458 | { 5, "SHA384" },
1459 | { 6, "SHA512" },
1460 | #if 0
1461 | /* RFC 8422 adds this to the HashAlgorithm registry, but it really
1462 | * only applies to 0x0807 and 0x0808, not for other TLS 1.3
1463 | * SignatureSchemes with 0x08 in the octet used for Hash in TLS 1.2.
1464 | * E.g., we don't want to display this for 0x0806 rsa_pss_rsae_sha512.
1465 | */
1466 | { 8, "Intrinsic" },
1467 | #endif
1468 | { 0, NULL((void*)0) }
1469 | };
1470 |
1471 | const value_string tls_signature_algorithm[] = {
1472 | { 0, "Anonymous" },
1473 | { 1, "RSA" },
1474 | { 2, "DSA" },
1475 | { 3, "ECDSA" },
1476 | #if 0
1477 | /* As above. */
1478 | { 7, "ED25519" },
1479 | { 8, "ED448" },
1480 | { 64, "GOSTR34102012_256" },
1481 | { 65, "GOSTR34102012_512" },
1482 | #endif
1483 | { 0, NULL((void*)0) }
1484 | };
1485 |
1486 | /* RFC 8446 Section 4.2.3 */
1487 | const value_string tls13_signature_algorithm[] = {
1488 | { 0x0201, "rsa_pkcs1_sha1" },
1489 | { 0x0203, "ecdsa_sha1" },
1490 | { 0x0401, "rsa_pkcs1_sha256" },
1491 | { 0x0403, "ecdsa_secp256r1_sha256" },
1492 | { 0x0420, "rsa_pkcs1_sha256_legacy" }, /* draft-davidben-tls13-pkcs1-01 */
1493 | { 0x0501, "rsa_pkcs1_sha384" },
1494 | { 0x0503, "ecdsa_secp384r1_sha384" },
1495 | { 0x0520, "rsa_pkcs1_sha384_legacy" }, /* draft-davidben-tls13-pkcs1-01 */
1496 | { 0x0601, "rsa_pkcs1_sha512" },
1497 | { 0x0603, "ecdsa_secp521r1_sha512" },
1498 | { 0x0620, "rsa_pkcs1_sha512_legacy" }, /* draft-davidben-tls13-pkcs1-01 */
1499 | { 0x0704, "eccsi_sha256" }, /* draft-wang-tls-raw-public-key-with-ibc-02 */
1500 | { 0x0705, "iso_ibs1" }, /* draft-wang-tls-raw-public-key-with-ibc-02 */
1501 | { 0x0706, "iso_ibs2" }, /* draft-wang-tls-raw-public-key-with-ibc-02 */
1502 | { 0x0707, "iso_chinese_ibs" }, /* draft-wang-tls-raw-public-key-with-ibc-02 */
1503 | { 0x0708, "sm2sig_sm3" },
1504 | { 0x0709, "gostr34102012_256a" }, /* RFC9367 */
1505 | { 0x070a, "gostr34102012_256b" }, /* RFC9367 */
1506 | { 0x070b, "gostr34102012_256c" }, /* RFC9367 */
1507 | { 0x070c, "gostr34102012_256d" }, /* RFC9367 */
1508 | { 0x070d, "gostr34102012_512a" }, /* RFC9367 */
1509 | { 0x070e, "gostr34102012_512b" }, /* RFC9367 */
1510 | { 0x070f, "gostr34102012_512c" }, /* RFC9367 */
1511 | { 0x0804, "rsa_pss_rsae_sha256" },
1512 | { 0x0805, "rsa_pss_rsae_sha384" },
1513 | { 0x0806, "rsa_pss_rsae_sha512" },
1514 | { 0x0807, "ed25519" },
1515 | { 0x0808, "ed448" },
1516 | { 0x0809, "rsa_pss_pss_sha256" },
1517 | { 0x080a, "rsa_pss_pss_sha384" },
1518 | { 0x080b, "rsa_pss_pss_sha512" },
1519 | { 0x081a, "ecdsa_brainpoolP256r1tls13_sha256" }, /* RFC8734 */
1520 | { 0x081b, "ecdsa_brainpoolP384r1tls13_sha384" }, /* RFC8734 */
1521 | { 0x081c, "ecdsa_brainpoolP512r1tls13_sha512" }, /* RFC8734 */
1522 | { 0x0904, "mldsa44" }, /* draft-ietf-tls-mldsa-00 */
1523 | { 0x0905, "mldsa65" }, /* draft-ietf-tls-mldsa-00 */
1524 | { 0x0906, "mldsa87" }, /* draft-ietf-tls-mldsa-00 */
1525 | { 0x0911, "slhdsa_sha2_128s" }, /* draft-reddy-tls-slhdsa-01 */
1526 | { 0x0912, "slhdsa_sha2_128f" }, /* draft-reddy-tls-slhdsa-01 */
1527 | { 0x0913, "slhdsa_sha2_192s" }, /* draft-reddy-tls-slhdsa-01 */
1528 | { 0x0914, "slhdsa_sha2_192f" }, /* draft-reddy-tls-slhdsa-01 */
1529 | { 0x0915, "slhdsa_sha2_256s" }, /* draft-reddy-tls-slhdsa-01 */
1530 | { 0x0916, "slhdsa_sha2_256f" }, /* draft-reddy-tls-slhdsa-01 */
1531 | { 0x0917, "slhdsa_shake_128s" }, /* draft-reddy-tls-slhdsa-01 */
1532 | { 0x0918, "slhdsa_shake_128f" }, /* draft-reddy-tls-slhdsa-01 */
1533 | { 0x0919, "slhdsa_shake_192s" }, /* draft-reddy-tls-slhdsa-01 */
1534 | { 0x091a, "slhdsa_shake_192f" }, /* draft-reddy-tls-slhdsa-01 */
1535 | { 0x091b, "slhdsa_shake_256s" }, /* draft-reddy-tls-slhdsa-01 */
1536 | { 0x091c, "slhdsa_shake_256f" }, /* draft-reddy-tls-slhdsa-01 */
1537 | /* PQC digital signature algorithms from OQS-OpenSSL,
1538 | see https://github.com/open-quantum-safe/oqs-provider/blob/main/oqs-template/oqs-sig-info.md */
1539 | { 0xfea0, "dilithium2" },
1540 | { 0xfea1, "p256_dilithium2" },
1541 | { 0xfea2, "rsa3072_dilithium2" },
1542 | { 0xfea3, "dilithium3" },
1543 | { 0xfea4, "p384_dilithium3" },
1544 | { 0xfea5, "dilithium5" },
1545 | { 0xfea6, "p521_dilithium5" },
1546 | { 0xfea7, "dilithium2_aes" },
1547 | { 0xfea8, "p256_dilithium2_aes" },
1548 | { 0xfea9, "rsa3072_dilithium2_aes" },
1549 | { 0xfeaa, "dilithium3_aes" },
1550 | { 0xfeab, "p384_dilithium3_aes" },
1551 | { 0xfeac, "dilithium5_aes" },
1552 | { 0xfead, "p521_dilithium5_aes" },
1553 | { 0xfe0b, "falcon512" },
1554 | { 0xfe0c, "p256_falcon512" },
1555 | { 0xfe0d, "rsa3072_falcon512" },
1556 | { 0xfe0e, "falcon1024" },
1557 | { 0xfe0f, "p521_falcon1024" },
1558 | { 0xfe96, "picnicl1full" },
1559 | { 0xfe97, "p256_picnicl1full" },
1560 | { 0xfe98, "rsa3072_picnicl1full" },
1561 | { 0xfe1b, "picnic3l1" },
1562 | { 0xfe1c, "p256_picnic3l1" },
1563 | { 0xfe1d, "rsa3072_picnic3l1" },
1564 | { 0xfe27, "rainbowIclassic" },
1565 | { 0xfe28, "p256_rainbowIclassic" },
1566 | { 0xfe29, "rsa3072_rainbowIclassic" },
1567 | { 0xfe3c, "rainbowVclassic" },
1568 | { 0xfe3d, "p521_rainbowVclassic" },
1569 | { 0xfe42, "sphincsharaka128frobust" },
1570 | { 0xfe43, "p256_sphincsharaka128frobust" },
1571 | { 0xfe44, "rsa3072_sphincsharaka128frobust" },
1572 | { 0xfe5e, "sphincssha256128frobust" },
1573 | { 0xfe5f, "p256_sphincssha256128frobust" },
1574 | { 0xfe60, "rsa3072_sphincssha256128frobust" },
1575 | { 0xfe7a, "sphincsshake256128frobust" },
1576 | { 0xfe7b, "p256_sphincsshake256128frobust" },
1577 | { 0xfe7c, "rsa3072_sphincsshake256128frobust" },
1578 | { 0, NULL((void*)0) }
1579 | };
1580 |
1581 | /* RFC 6091 3.1 */
1582 | const value_string tls_certificate_type[] = {
1583 | { 0, "X.509" },
1584 | { 1, "OpenPGP" },
1585 | { SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY2, "Raw Public Key" }, /* RFC 7250 */
1586 | { 0, NULL((void*)0) }
1587 | };
1588 |
1589 | const value_string tls_cert_chain_type[] = {
1590 | { SSL_HND_CERT_URL_TYPE_INDIVIDUAL_CERT1, "Individual Certificates" },
1591 | { SSL_HND_CERT_URL_TYPE_PKIPATH2, "PKI Path" },
1592 | { 0, NULL((void*)0) }
1593 | };
1594 |
1595 | const value_string tls_cert_status_type[] = {
1596 | { SSL_HND_CERT_STATUS_TYPE_OCSP1, "OCSP" },
1597 | { SSL_HND_CERT_STATUS_TYPE_OCSP_MULTI2, "OCSP Multi" },
1598 | { 0, NULL((void*)0) }
1599 | };
1600 |
1601 | /* Generated by tools/dissector_generators/generate-tls-ct-logids.py
1602 | * Last-Modified Sat, 11 Jul 2026 13:58:00 GMT, 42 entries. */
1603 | static const bytes_string ct_logids[] = {
1604 | { (const uint8_t[]){
1605 | 0x0e, 0x57, 0x94, 0xbc, 0xf3, 0xae, 0xa9, 0x3e, 0x33, 0x1b, 0x2c,
1606 | 0x99, 0x07, 0xb3, 0xf7, 0x90, 0xdf, 0x9b, 0xc2, 0x3d, 0x71, 0x32,
1607 | 0x25, 0xdd, 0x21, 0xa9, 0x25, 0xac, 0x61, 0xc5, 0x4e, 0x21,
1608 | },
1609 | 32, "Google 'Argon2026h1' log" },
1610 | { (const uint8_t[]){
1611 | 0xd7, 0x6d, 0x7d, 0x10, 0xd1, 0xa7, 0xf5, 0x77, 0xc2, 0xc7, 0xe9,
1612 | 0x5f, 0xd7, 0x00, 0xbf, 0xf9, 0x82, 0xc9, 0x33, 0x5a, 0x65, 0xe1,
1613 | 0xd0, 0xb3, 0x01, 0x73, 0x17, 0xc0, 0xc8, 0xc5, 0x69, 0x77,
1614 | },
1615 | 32, "Google 'Argon2026h2' log" },
1616 | { (const uint8_t[]){
1617 | 0xd6, 0xd5, 0x8d, 0xa9, 0xd0, 0x17, 0x53, 0xf3, 0x6a, 0x4a, 0xa0,
1618 | 0xc7, 0x57, 0x49, 0x02, 0xaf, 0xeb, 0xc7, 0xdc, 0x2c, 0xd3, 0x8c,
1619 | 0xd9, 0xf7, 0x64, 0xc8, 0x0c, 0x89, 0x19, 0x1e, 0x9f, 0x02,
1620 | },
1621 | 32, "Google 'Argon2027h1'" },
1622 | { (const uint8_t[]){
1623 | 0x96, 0x97, 0x64, 0xbf, 0x55, 0x58, 0x97, 0xad, 0xf7, 0x43, 0x87,
1624 | 0x68, 0x37, 0x08, 0x42, 0x77, 0xe9, 0xf0, 0x3a, 0xd5, 0xf6, 0xa4,
1625 | 0xf3, 0x36, 0x6e, 0x46, 0xa4, 0x3f, 0x0f, 0xca, 0xa9, 0xc6,
1626 | },
1627 | 32, "Google 'Xenon2026h1' log" },
1628 | { (const uint8_t[]){
1629 | 0xd8, 0x09, 0x55, 0x3b, 0x94, 0x4f, 0x7a, 0xff, 0xc8, 0x16, 0x19,
1630 | 0x6f, 0x94, 0x4f, 0x85, 0xab, 0xb0, 0xf8, 0xfc, 0x5e, 0x87, 0x55,
1631 | 0x26, 0x0f, 0x15, 0xd1, 0x2e, 0x72, 0xbb, 0x45, 0x4b, 0x14,
1632 | },
1633 | 32, "Google 'Xenon2026h2' log" },
1634 | { (const uint8_t[]){
1635 | 0x44, 0xc2, 0xbd, 0x0c, 0xe9, 0x14, 0x0e, 0x64, 0xa5, 0xc9, 0x4a,
1636 | 0x01, 0x93, 0x0a, 0x5a, 0xa1, 0xbb, 0x35, 0x97, 0x0e, 0x00, 0xee,
1637 | 0x11, 0x16, 0x89, 0x68, 0x2a, 0x1c, 0x44, 0xd7, 0xb5, 0x66,
1638 | },
1639 | 32, "Google 'Xenon2027h1'" },
1640 | { (const uint8_t[]){
1641 | 0xa8, 0x99, 0xd8, 0x78, 0x0c, 0x92, 0x90, 0xaa, 0xf4, 0x62, 0xf3,
1642 | 0x18, 0x80, 0xcc, 0xfb, 0xd5, 0x24, 0x51, 0xe9, 0x70, 0xd0, 0xfb,
1643 | 0xf5, 0x91, 0xef, 0x75, 0xb0, 0xd9, 0x9b, 0x64, 0x56, 0x81,
1644 | },
1645 | 32, "Google 'Submariner' log" },
1646 | { (const uint8_t[]){
1647 | 0x1d, 0x02, 0x4b, 0x8e, 0xb1, 0x49, 0x8b, 0x34, 0x4d, 0xfd, 0x87,
1648 | 0xea, 0x3e, 0xfc, 0x09, 0x96, 0xf7, 0x50, 0x6f, 0x23, 0x5d, 0x1d,
1649 | 0x49, 0x70, 0x61, 0xa4, 0x77, 0x3c, 0x43, 0x9c, 0x25, 0xfb,
1650 | },
1651 | 32, "Google 'Daedalus' log" },
1652 | { (const uint8_t[]){
1653 | 0xb0, 0xcc, 0x83, 0xe5, 0xa5, 0xf9, 0x7d, 0x6b, 0xaf, 0x7c, 0x09,
1654 | 0xcc, 0x28, 0x49, 0x04, 0x87, 0x2a, 0xc7, 0xe8, 0x8b, 0x13, 0x2c,
1655 | 0x63, 0x50, 0xb7, 0xc6, 0xfd, 0x26, 0xe1, 0x6c, 0x6c, 0x77,
1656 | },
1657 | 32, "Google 'Testtube' log" },
1658 | { (const uint8_t[]){
1659 | 0xc3, 0xbf, 0x03, 0xa7, 0xe1, 0xca, 0x88, 0x41, 0xc6, 0x07, 0xba,
1660 | 0xe3, 0xff, 0x42, 0x70, 0xfc, 0xa5, 0xec, 0x45, 0xb1, 0x86, 0xeb,
1661 | 0xbe, 0x4e, 0x2c, 0xf3, 0xfc, 0x77, 0x86, 0x30, 0xf5, 0xf6,
1662 | },
1663 | 32, "Google 'Crucible' log" },
1664 | { (const uint8_t[]){
1665 | 0xc8, 0x4b, 0x90, 0x7a, 0x07, 0xbe, 0xaa, 0x29, 0xa6, 0x14, 0xc2,
1666 | 0x45, 0x84, 0xb7, 0xa3, 0xf6, 0x62, 0x43, 0x94, 0x68, 0x7b, 0x25,
1667 | 0xfe, 0x62, 0x83, 0x8b, 0x71, 0xec, 0x42, 0x2a, 0xd2, 0xf9,
1668 | },
1669 | 32, "Google 'Solera2026h1' log" },
1670 | { (const uint8_t[]){
1671 | 0x62, 0xe9, 0x00, 0x60, 0x04, 0xa3, 0x07, 0x95, 0x5a, 0x75, 0x44,
1672 | 0xb4, 0xd5, 0x84, 0xa9, 0x62, 0x68, 0xca, 0x1d, 0x6e, 0x45, 0x85,
1673 | 0xad, 0xf0, 0x91, 0x6d, 0xfe, 0x5f, 0xdc, 0x1f, 0x04, 0xdb,
1674 | },
1675 | 32, "Google 'Solera2026h2' log" },
1676 | { (const uint8_t[]){
1677 | 0x3d, 0xe4, 0x92, 0xa8, 0x98, 0x93, 0xad, 0x70, 0x5e, 0x78, 0x46,
1678 | 0xed, 0x21, 0xd4, 0x8d, 0xca, 0xfb, 0xad, 0x13, 0x9e, 0xa6, 0x4e,
1679 | 0xd1, 0xe3, 0x49, 0xf9, 0x00, 0xb0, 0xa2, 0xcd, 0xa5, 0xe2,
1680 | },
1681 | 32, "Google 'Solera2027h1' log" },
1682 | { (const uint8_t[]){
1683 | 0xcb, 0x38, 0xf7, 0x15, 0x89, 0x7c, 0x84, 0xa1, 0x44, 0x5f, 0x5b,
1684 | 0xc1, 0xdd, 0xfb, 0xc9, 0x6e, 0xf2, 0x9a, 0x59, 0xcd, 0x47, 0x0a,
1685 | 0x69, 0x05, 0x85, 0xb0, 0xcb, 0x14, 0xc3, 0x14, 0x58, 0xe7,
1686 | },
1687 | 32, "Cloudflare 'Nimbus2026'" },
1688 | { (const uint8_t[]){
1689 | 0x4c, 0x63, 0xdc, 0x98, 0xe5, 0x9c, 0x1d, 0xab, 0x88, 0xf6, 0x1e,
1690 | 0x8a, 0x3d, 0xde, 0xae, 0x8f, 0xab, 0x44, 0xa3, 0x37, 0x7b, 0x5f,
1691 | 0x9b, 0x94, 0xc3, 0xfb, 0xa1, 0x9c, 0xfc, 0xc1, 0xbe, 0x26,
1692 | },
1693 | 32, "Cloudflare 'Nimbus2027'" },
1694 | { (const uint8_t[]){
1695 | 0x64, 0x11, 0xc4, 0x6c, 0xa4, 0x12, 0xec, 0xa7, 0x89, 0x1c, 0xa2,
1696 | 0x02, 0x2e, 0x00, 0xbc, 0xab, 0x4f, 0x28, 0x07, 0xd4, 0x1e, 0x35,
1697 | 0x27, 0xab, 0xea, 0xfe, 0xd5, 0x03, 0xc9, 0x7d, 0xcd, 0xf0,
1698 | },
1699 | 32, "DigiCert 'Wyvern2026h1'" },
1700 | { (const uint8_t[]){
1701 | 0xc2, 0x31, 0x7e, 0x57, 0x45, 0x19, 0xa3, 0x45, 0xee, 0x7f, 0x38,
1702 | 0xde, 0xb2, 0x90, 0x41, 0xeb, 0xc7, 0xc2, 0x21, 0x5a, 0x22, 0xbf,
1703 | 0x7f, 0xd5, 0xb5, 0xad, 0x76, 0x9a, 0xd9, 0x0e, 0x52, 0xcd,
1704 | },
1705 | 32, "DigiCert 'Wyvern2026h2'" },
1706 | { (const uint8_t[]){
1707 | 0x00, 0x1a, 0x5d, 0x1a, 0x1c, 0x2d, 0x93, 0x75, 0xb6, 0x48, 0x55,
1708 | 0x78, 0xf8, 0x2f, 0x71, 0xa1, 0xae, 0x6e, 0xef, 0x39, 0x7d, 0x29,
1709 | 0x7c, 0x8a, 0xe3, 0x15, 0x7b, 0xca, 0xde, 0xe1, 0xa0, 0x1e,
1710 | },
1711 | 32, "DigiCert 'Wyvern2027h1'" },
1712 | { (const uint8_t[]){
1713 | 0x37, 0xaa, 0x07, 0xcc, 0x21, 0x6f, 0x2e, 0x6d, 0x91, 0x9c, 0x70,
1714 | 0x9d, 0x24, 0xd8, 0xf7, 0x31, 0xb0, 0x0f, 0x2b, 0x14, 0x7c, 0x62,
1715 | 0x1c, 0xc0, 0x91, 0xa5, 0xfa, 0x1a, 0x84, 0xd8, 0x16, 0xdd,
1716 | },
1717 | 32, "DigiCert 'Wyvern2027h2'" },
1718 | { (const uint8_t[]){
1719 | 0x49, 0x9c, 0x9b, 0x69, 0xde, 0x1d, 0x7c, 0xec, 0xfc, 0x36, 0xde,
1720 | 0xcd, 0x87, 0x64, 0xa6, 0xb8, 0x5b, 0xaf, 0x0a, 0x87, 0x80, 0x19,
1721 | 0xd1, 0x55, 0x52, 0xfb, 0xe9, 0xeb, 0x29, 0xdd, 0xf8, 0xc3,
1722 | },
1723 | 32, "DigiCert 'Sphinx2026h1'" },
1724 | { (const uint8_t[]){
1725 | 0x94, 0x4e, 0x43, 0x87, 0xfa, 0xec, 0xc1, 0xef, 0x81, 0xf3, 0x19,
1726 | 0x24, 0x26, 0xa8, 0x18, 0x65, 0x01, 0xc7, 0xd3, 0x5f, 0x38, 0x02,
1727 | 0x01, 0x3f, 0x72, 0x67, 0x7d, 0x55, 0x37, 0x2e, 0x19, 0xd8,
1728 | },
1729 | 32, "DigiCert 'Sphinx2026h2'" },
1730 | { (const uint8_t[]){
1731 | 0x46, 0xa2, 0x39, 0x67, 0xc6, 0x0d, 0xb6, 0x46, 0x87, 0xc6, 0x6f,
1732 | 0x3d, 0xf9, 0x99, 0x94, 0x76, 0x93, 0xa6, 0xa6, 0x11, 0x20, 0x84,
1733 | 0x57, 0xd5, 0x55, 0xe7, 0xe3, 0xd0, 0xa1, 0xd9, 0xb6, 0x46,
1734 | },
1735 | 32, "DigiCert 'sphinx2027h1'" },
1736 | { (const uint8_t[]){
1737 | 0x1f, 0xb0, 0xf8, 0xa9, 0x2d, 0x8a, 0xdd, 0xa1, 0x21, 0x77, 0x6c,
1738 | 0x05, 0xe2, 0xaa, 0x2e, 0x15, 0xba, 0xcb, 0xc6, 0x2b, 0x65, 0x39,
1739 | 0x36, 0x95, 0x57, 0x6a, 0xaa, 0xb5, 0x2e, 0x11, 0xd1, 0x1d,
1740 | },
1741 | 32, "DigiCert 'sphinx2027h2'" },
1742 | { (const uint8_t[]){
1743 | 0x25, 0x2f, 0x94, 0xc2, 0x2b, 0x29, 0xe9, 0x6e, 0x9f, 0x41, 0x1a,
1744 | 0x72, 0x07, 0x2b, 0x69, 0x5c, 0x5b, 0x52, 0xff, 0x97, 0xa9, 0x0d,
1745 | 0x25, 0x40, 0xbb, 0xfc, 0xdc, 0x51, 0xec, 0x4d, 0xee, 0x0b,
1746 | },
1747 | 32, "Sectigo 'Mammoth2026h1'" },
1748 | { (const uint8_t[]){
1749 | 0x94, 0xb1, 0xc1, 0x8a, 0xb0, 0xd0, 0x57, 0xc4, 0x7b, 0xe0, 0xac,
1750 | 0x04, 0x0e, 0x1f, 0x2c, 0xbc, 0x8d, 0xc3, 0x75, 0x72, 0x7b, 0xc9,
1751 | 0x51, 0xf2, 0x0a, 0x52, 0x61, 0x26, 0x86, 0x3b, 0xa7, 0x3c,
1752 | },
1753 | 32, "Sectigo 'Mammoth2026h2'" },
1754 | { (const uint8_t[]){
1755 | 0x56, 0x6c, 0xd5, 0xa3, 0x76, 0xbe, 0x83, 0xdf, 0xe3, 0x42, 0xb6,
1756 | 0x75, 0xc4, 0x9c, 0x23, 0x24, 0x98, 0xa7, 0x69, 0xba, 0xc3, 0x82,
1757 | 0xcb, 0xab, 0x49, 0xa3, 0x87, 0x7d, 0x9a, 0xb3, 0x2d, 0x01,
1758 | },
1759 | 32, "Sectigo 'Sabre2026h1'" },
1760 | { (const uint8_t[]){
1761 | 0x1f, 0x56, 0xd1, 0xab, 0x94, 0x70, 0x4a, 0x41, 0xdd, 0x3f, 0xea,
1762 | 0xfd, 0xf4, 0x69, 0x93, 0x55, 0x30, 0x2c, 0x14, 0x31, 0xbf, 0xe6,
1763 | 0x13, 0x46, 0x08, 0x9f, 0xff, 0xae, 0x79, 0x5d, 0xcc, 0x2f,
1764 | },
1765 | 32, "Sectigo 'Sabre2026h2'" },
1766 | { (const uint8_t[]){
1767 | 0xd1, 0x6e, 0xa9, 0xa5, 0x68, 0x07, 0x7e, 0x66, 0x35, 0xa0, 0x3f,
1768 | 0x37, 0xa5, 0xdd, 0xbc, 0x03, 0xa5, 0x3c, 0x41, 0x12, 0x14, 0xd4,
1769 | 0x88, 0x18, 0xf5, 0xe9, 0x31, 0xb3, 0x23, 0xcb, 0x95, 0x04,
1770 | },
1771 | 32, "Sectigo 'Elephant2026h1'" },
1772 | { (const uint8_t[]){
1773 | 0xaf, 0x67, 0x88, 0x3b, 0x57, 0xb0, 0x4e, 0xdd, 0x8f, 0xa6, 0xd9,
1774 | 0x7e, 0xf6, 0x2e, 0xa8, 0xeb, 0x81, 0x0a, 0xc7, 0x71, 0x60, 0xf0,
1775 | 0x24, 0x5e, 0x55, 0xd6, 0x0c, 0x2f, 0xe7, 0x85, 0x87, 0x3a,
1776 | },
1777 | 32, "Sectigo 'Elephant2026h2'" },
1778 | { (const uint8_t[]){
1779 | 0x60, 0x4c, 0x9a, 0xaf, 0x7a, 0x7f, 0x77, 0x5f, 0x01, 0xd4, 0x06,
1780 | 0xfc, 0x92, 0x0d, 0xc8, 0x99, 0xeb, 0x0b, 0x1c, 0x7d, 0xf8, 0xc9,
1781 | 0x52, 0x1b, 0xfa, 0xfa, 0x17, 0x77, 0x3b, 0x97, 0x8b, 0xc9,
1782 | },
1783 | 32, "Sectigo 'Elephant2027h1'" },
1784 | { (const uint8_t[]){
1785 | 0xa2, 0x49, 0x0c, 0xdc, 0xdb, 0x8e, 0x33, 0xa4, 0x00, 0x32, 0x17,
1786 | 0x60, 0xd6, 0xd4, 0xd5, 0x1a, 0x20, 0x36, 0x19, 0x1e, 0xa7, 0x7d,
1787 | 0x96, 0x8b, 0xe2, 0x6a, 0x8a, 0x00, 0xf6, 0xff, 0xff, 0xf7,
1788 | },
1789 | 32, "Sectigo 'Elephant2027h2'" },
1790 | { (const uint8_t[]){
1791 | 0x16, 0x83, 0x2d, 0xab, 0xf0, 0xa9, 0x25, 0x0f, 0x0f, 0xf0, 0x3a,
1792 | 0xa5, 0x45, 0xff, 0xc8, 0xbf, 0xc8, 0x23, 0xd0, 0x87, 0x4b, 0xf6,
1793 | 0x04, 0x29, 0x27, 0xf8, 0xe7, 0x1f, 0x33, 0x13, 0xf5, 0xfa,
1794 | },
1795 | 32, "Sectigo 'Tiger2026h1'" },
1796 | { (const uint8_t[]){
1797 | 0xc8, 0xa3, 0xc4, 0x7f, 0xc7, 0xb3, 0xad, 0xb9, 0x35, 0x6b, 0x01,
1798 | 0x3f, 0x6a, 0x7a, 0x12, 0x6d, 0xe3, 0x3a, 0x4e, 0x43, 0xa5, 0xc6,
1799 | 0x46, 0xf9, 0x97, 0xad, 0x39, 0x75, 0x99, 0x1d, 0xcf, 0x9a,
1800 | },
1801 | 32, "Sectigo 'Tiger2026h2'" },
1802 | { (const uint8_t[]){
1803 | 0x1c, 0x9f, 0x68, 0x2c, 0xe9, 0xfa, 0xf0, 0x45, 0x69, 0x50, 0xf8,
1804 | 0x1b, 0x96, 0x8a, 0x87, 0xdd, 0xdb, 0x32, 0x10, 0xd8, 0x4c, 0xe6,
1805 | 0xc8, 0xb2, 0xe3, 0x82, 0x52, 0x4a, 0xc4, 0xcf, 0x59, 0x9f,
1806 | },
1807 | 32, "Sectigo 'Tiger2027h1'" },
1808 | { (const uint8_t[]){
1809 | 0x03, 0x80, 0x2a, 0xc2, 0x62, 0xf6, 0xe0, 0x5e, 0x03, 0xf8, 0xbc,
1810 | 0x6f, 0x7b, 0x98, 0x51, 0x32, 0x4f, 0xd7, 0x6a, 0x3d, 0xf5, 0xb7,
1811 | 0x59, 0x51, 0x75, 0xe2, 0x22, 0xfb, 0x8e, 0x9b, 0xd5, 0xf6,
1812 | },
1813 | 32, "Sectigo 'Tiger2027h2'" },
1814 | { (const uint8_t[]){
1815 | 0x19, 0x86, 0xd4, 0xc7, 0x28, 0xaa, 0x6f, 0xfe, 0xba, 0x03, 0x6f,
1816 | 0x78, 0x2a, 0x4d, 0x01, 0x91, 0xaa, 0xce, 0x2d, 0x72, 0x31, 0x0f,
1817 | 0xae, 0xce, 0x5d, 0x70, 0x41, 0x2d, 0x25, 0x4c, 0xc7, 0xd4,
1818 | },
1819 | 32, "Let's Encrypt 'Oak2026h1'" },
1820 | { (const uint8_t[]){
1821 | 0xac, 0xab, 0x30, 0x70, 0x6c, 0xeb, 0xec, 0x84, 0x31, 0xf4, 0x13,
1822 | 0xd2, 0xf4, 0x91, 0x5f, 0x11, 0x1e, 0x42, 0x24, 0x43, 0xb1, 0xf2,
1823 | 0xa6, 0x8c, 0x4f, 0x3c, 0x2b, 0x3b, 0xa7, 0x1e, 0x02, 0xc3,
1824 | },
1825 | 32, "Let's Encrypt 'Oak2026h2'" },
1826 | { (const uint8_t[]){
1827 | 0x74, 0xdb, 0x9d, 0x58, 0xf7, 0xd4, 0x7e, 0x9d, 0xfd, 0x78, 0x7a,
1828 | 0x16, 0x2a, 0x99, 0x1c, 0x18, 0xcf, 0x69, 0x8d, 0xa7, 0xc7, 0x29,
1829 | 0x91, 0x8c, 0x9a, 0x18, 0xb0, 0x45, 0x0d, 0xba, 0x44, 0xbc,
1830 | },
1831 | 32, "TrustAsia 'log2026a'" },
1832 | { (const uint8_t[]){
1833 | 0x25, 0xb7, 0xef, 0xde, 0xa1, 0x13, 0x01, 0x93, 0xed, 0x93, 0x07,
1834 | 0x97, 0x70, 0xaa, 0x32, 0x2a, 0x26, 0x62, 0x0d, 0xe3, 0x5a, 0xc8,
1835 | 0xaa, 0x7c, 0x75, 0x19, 0x7d, 0xe0, 0xb1, 0xa9, 0xe0, 0x65,
1836 | },
1837 | 32, "TrustAsia 'log2026b'" },
1838 | { (const uint8_t[]){
1839 | 0xed, 0xda, 0xeb, 0x81, 0x5c, 0x63, 0x21, 0x34, 0x49, 0xb4, 0x7b,
1840 | 0xe5, 0x07, 0x79, 0x05, 0xab, 0xd0, 0xd9, 0x31, 0x47, 0xc2, 0x7a,
1841 | 0xc5, 0x14, 0x6b, 0x3b, 0xc5, 0x8e, 0x43, 0xe9, 0xb6, 0xc7,
1842 | },
1843 | 32, "TrustAsia 'HETU2027'" },
1844 | { (const uint8_t[]){
1845 | 0x2e, 0xd6, 0xa4, 0x4d, 0xeb, 0x8f, 0x0c, 0x86, 0x46, 0x67, 0x76,
1846 | 0x9c, 0x4e, 0xdd, 0x04, 0x1f, 0x84, 0x23, 0x67, 0x55, 0xfa, 0x3a,
1847 | 0xac, 0xa6, 0x34, 0xd0, 0x93, 0x5d, 0xfc, 0xd5, 0x9a, 0x70,
1848 | },
1849 | 32, "Bogus placeholder log to unbreak misbehaving CT libraries" },
1850 | { (const uint8_t[]){
1851 | 0xd2, 0xfc, 0x65, 0x2f, 0xa5, 0xf9, 0xb7, 0x38, 0xb8, 0x37, 0x55,
1852 | 0xfa, 0x5e, 0xb1, 0x5f, 0x0b, 0x45, 0x25, 0x3f, 0x4e, 0x8f, 0xa3,
1853 | 0xb9, 0xb6, 0x4f, 0xd4, 0xde, 0x56, 0x62, 0xd1, 0x87, 0x08,
1854 | },
1855 | 32, "Bogus RFC6962 log to avoid breaking misbehaving CT libraries" },
1856 | { NULL((void*)0), 0, NULL((void*)0) }
1857 | };
1858 |
1859 | /*
1860 | * Application-Layer Protocol Negotiation (ALPN) dissector tables.
1861 | */
1862 | static dissector_table_t ssl_alpn_dissector_table;
1863 | static dissector_table_t dtls_alpn_dissector_table;
1864 |
1865 | /*
1866 | * Special cases for prefix matching of the ALPN, if the ALPN includes
1867 | * a version number for a draft or protocol revision.
1868 | */
1869 | typedef struct ssl_alpn_prefix_match_protocol {
1870 | const char *proto_prefix;
1871 | const char *dissector_name;
1872 | } ssl_alpn_prefix_match_protocol_t;
1873 |
1874 | static const ssl_alpn_prefix_match_protocol_t ssl_alpn_prefix_match_protocols[] = {
1875 | /* SPDY moves so fast, just 1, 2 and 3 are registered with IANA but there
1876 | * already exists 3.1 as of this writing... match the prefix. */
1877 | { "spdy/", "spdy" },
1878 | /* draft-ietf-httpbis-http2-16 */
1879 | { "h2-", "http2" }, /* draft versions */
1880 | };
1881 |
1882 | const value_string compress_certificate_algorithm_vals[] = {
1883 | { 1, "zlib" },
1884 | { 2, "brotli" },
1885 | { 3, "zstd" },
1886 | { 0, NULL((void*)0) }
1887 | };
1888 |
1889 |
1890 | const val64_string quic_transport_parameter_id[] = {
1891 | { SSL_HND_QUIC_TP_ORIGINAL_DESTINATION_CONNECTION_ID0x00, "original_destination_connection_id" },
1892 | { SSL_HND_QUIC_TP_MAX_IDLE_TIMEOUT0x01, "max_idle_timeout" },
1893 | { SSL_HND_QUIC_TP_STATELESS_RESET_TOKEN0x02, "stateless_reset_token" },
1894 | { SSL_HND_QUIC_TP_MAX_UDP_PAYLOAD_SIZE0x03, "max_udp_payload_size" },
1895 | { SSL_HND_QUIC_TP_INITIAL_MAX_DATA0x04, "initial_max_data" },
1896 | { SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL0x05, "initial_max_stream_data_bidi_local" },
1897 | { SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE0x06, "initial_max_stream_data_bidi_remote" },
1898 | { SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_UNI0x07, "initial_max_stream_data_uni" },
1899 | { SSL_HND_QUIC_TP_INITIAL_MAX_STREAMS_UNI0x09, "initial_max_streams_uni" },
1900 | { SSL_HND_QUIC_TP_INITIAL_MAX_STREAMS_BIDI0x08, "initial_max_streams_bidi" },
1901 | { SSL_HND_QUIC_TP_ACK_DELAY_EXPONENT0x0a, "ack_delay_exponent" },
1902 | { SSL_HND_QUIC_TP_MAX_ACK_DELAY0x0b, "max_ack_delay" },
1903 | { SSL_HND_QUIC_TP_DISABLE_ACTIVE_MIGRATION0x0c, "disable_active_migration" },
1904 | { SSL_HND_QUIC_TP_PREFERRED_ADDRESS0x0d, "preferred_address" },
1905 | { SSL_HND_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT0x0e, "active_connection_id_limit" },
1906 | { SSL_HND_QUIC_TP_INITIAL_SOURCE_CONNECTION_ID0x0f, "initial_source_connection_id" },
1907 | { SSL_HND_QUIC_TP_RETRY_SOURCE_CONNECTION_ID0x10, "retry_source_connection_id" },
1908 | { SSL_HND_QUIC_TP_MAX_DATAGRAM_FRAME_SIZE0x20, "max_datagram_frame_size" },
1909 | { SSL_HND_QUIC_TP_CIBIR_ENCODING0x1000, "cibir_encoding" },
1910 | { SSL_HND_QUIC_TP_LOSS_BITS0x1057, "loss_bits" },
1911 | { SSL_HND_QUIC_TP_GREASE_QUIC_BIT0x2ab2, "grease_quic_bit" },
1912 | { SSL_HND_QUIC_TP_ENABLE_TIME_STAMP0x7157, "enable_time_stamp" },
1913 | { SSL_HND_QUIC_TP_ENABLE_TIME_STAMP_V20x7158, "enable_time_stamp_v2" },
1914 | { SSL_HND_QUIC_TP_VERSION_INFORMATION0x11, "version_information" },
1915 | { SSL_HND_QUIC_TP_VERSION_INFORMATION_DRAFT0xff73db, "version_information_draft" },
1916 | { SSL_HND_QUIC_TP_MIN_ACK_DELAY_OLD0xde1a, "min_ack_delay" },
1917 | { SSL_HND_QUIC_TP_GOOGLE_USER_AGENT0x3129, "google_user_agent" },
1918 | { SSL_HND_QUIC_TP_GOOGLE_KEY_UPDATE_NOT_YET_SUPPORTED0x312B, "google_key_update_not_yet_supported" },
1919 | { SSL_HND_QUIC_TP_GOOGLE_QUIC_VERSION0x4752, "google_quic_version" },
1920 | { SSL_HND_QUIC_TP_GOOGLE_INITIAL_RTT0x3127, "google_initial_rtt" },
1921 | { SSL_HND_QUIC_TP_GOOGLE_SUPPORT_HANDSHAKE_DONE0x312A, "google_support_handshake_done" },
1922 | { SSL_HND_QUIC_TP_GOOGLE_QUIC_PARAMS0x4751, "google_quic_params" },
1923 | { SSL_HND_QUIC_TP_GOOGLE_CONNECTION_OPTIONS0x3128, "google_connection_options" },
1924 | { SSL_HND_QUIC_TP_FACEBOOK_PARTIAL_RELIABILITY0xFF00, "facebook_partial_reliability" },
1925 | { SSL_HND_QUIC_TP_ADDRESS_DISCOVERY0x9f81a176, "address_discovery" },
1926 | { SSL_HND_QUIC_TP_MIN_ACK_DELAY_DRAFT_V10xFF03DE1A, "min_ack_delay (draft-01)" },
1927 | { SSL_HND_QUIC_TP_MIN_ACK_DELAY_DRAFT050xff04de1a, "min_ack_delay (draft-05)" },
1928 | { SSL_HND_QUIC_TP_MIN_ACK_DELAY0xff04de1b, "min_ack_delay" },
1929 | { SSL_HND_QUIC_TP_ENABLE_MULTIPATH_DRAFT040x0f739bbc1b666d04, "enable_multipath (draft-04)" },
1930 | { SSL_HND_QUIC_TP_ENABLE_MULTIPATH_DRAFT050x0f739bbc1b666d05, "enable_multipath (draft-05)" },
1931 | { SSL_HND_QUIC_TP_ENABLE_MULTIPATH0x0f739bbc1b666d06, "enable_multipath (draft-06)" },
1932 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATHS0x0f739bbc1b666d07, "initial_max_paths (draft-07/08)" },
1933 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT090x0f739bbc1b666d09, "initial_max_path_id (draft-09/10)" },
1934 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT110x0f739bbc1b666d11, "initial_max_path_id (draft-11)" },
1935 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT120x0f739bbc1b666d0c, "initial_max_path_id (draft-12)" },
1936 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT130x0f739bbc1b666d0d, "initial_max_path_id (draft-13)" },
1937 | { SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID0x3e, "initial_max_path_id" },
1938 | { 0, NULL((void*)0) }
1939 | };
1940 |
1941 | /* https://tools.ietf.org/html/draft-ietf-quic-address-discovery-00 */
1942 | const val64_string quic_address_discovery_vals[] = {
1943 | { 0, "The node is willing to provide address observations to its peer, but is not interested in receiving address observations itself" },
1944 | { 1, "The node is interested in receiving address observations, but it is not willing to provide address observations" },
1945 | { 2, "The node is interested in receiving address observations, and it is willing to provide address observations" },
1946 | { 0, NULL((void*)0) }
1947 | };
1948 |
1949 | /* https://tools.ietf.org/html/draft-huitema-quic-ts-03 */
1950 | const val64_string quic_enable_time_stamp_v2_vals[] = {
1951 | { 1, "I would like to receive TIME_STAMP frames" },
1952 | { 2, "I am able to generate TIME_STAMP frames" },
1953 | { 3, "I am able to generate TIME_STAMP frames and I would like to receive them" },
1954 | { 0, NULL((void*)0) }
1955 | };
1956 |
1957 | /* https://datatracker.ietf.org/doc/draft-ietf-quic-multipath/04/ */
1958 | const val64_string quic_enable_multipath_vals[] = {
1959 | { 0, "don't support multipath" },
1960 | { 1, "support multipath as defined in this document" },
1961 | { 0, NULL((void*)0) }
1962 | };
1963 |
1964 | /* https://www.ietf.org/archive/id/draft-ietf-tls-esni-16.txt */
1965 | const value_string tls_hello_ext_ech_clienthello_types[] = {
1966 | { 0, "Outer Client Hello" },
1967 | { 1, "Inner Client Hello" },
1968 | { 0, NULL((void*)0) }
1969 | };
1970 |
1971 | /* RFC 9180 */
1972 | const value_string kem_id_type_vals[] = {
1973 | { 0x0000, "Reserved" },
1974 | { 0x0010, "DHKEM(P-256, HKDF-SHA256)" },
1975 | { 0x0011, "DHKEM(P-384, HKDF-SHA384)" },
1976 | { 0x0012, "DHKEM(P-521, HKDF-SHA512)" },
1977 | { 0x0020, "DHKEM(X25519, HKDF-SHA256)" },
1978 | { 0x0021, "DHKEM(X448, HKDF-SHA512)" },
1979 | { 0, NULL((void*)0) }
1980 | };
1981 | const value_string kdf_id_type_vals[] = {
1982 | { 0x0000, "Reserved" },
1983 | { 0x0001, "HKDF-SHA256" },
1984 | { 0x0002, "HKDF-SHA384" },
1985 | { 0x0003, "HKDF-SHA512" },
1986 | { 0, NULL((void*)0) }
1987 | };
1988 | const value_string aead_id_type_vals[] = {
1989 | { 0x0000, "Reserved" },
1990 | { 0x0001, "AES-128-GCM" },
1991 | { 0x0002, "AES-256-GCM" },
1992 | { 0x0003, "ChaCha20Poly1305" },
1993 | { 0xFFFF, "Export-only" },
1994 | { 0, NULL((void*)0) }
1995 | };
1996 |
1997 | const value_string token_binding_key_parameter_vals[] = {
1998 | { 0, "rsa2048_pkcs1.5" },
1999 | { 1, "rsa2048_pss" },
2000 | { 2, "ecdsap256" },
2001 | { 0, NULL((void*)0) }
2002 | };
2003 |
2004 | /* Lookup tables }}} */
2005 |
2006 | void
2007 | quic_transport_parameter_id_base_custom(char *result, uint64_t parameter_id)
2008 | {
2009 | const char *label;
2010 | if (IS_GREASE_QUIC(parameter_id)((parameter_id) > 27 ? ((((parameter_id) - 27) % 31) == 0) : 0)) {
2011 | label = "GREASE";
2012 | } else {
2013 | label = val64_to_str_const(parameter_id, quic_transport_parameter_id, "Unknown");
2014 | }
2015 | snprintf(result, ITEM_LABEL_LENGTH240, "%s (0x%02" PRIx64"l" "x" ")", label, parameter_id);
2016 | }
2017 |
2018 | /* we keep this internal to packet-tls-utils, as there should be
2019 | no need to access it any other way.
2020 |
2021 | This also allows us to hide the dependency on zlib.
2022 | */
2023 | struct _SslDecompress {
2024 | int compression;
2025 | #ifdef USE_ZLIB_OR_ZLIBNG
2026 | zlib_stream istream;
2027 | #endif
2028 | };
2029 |
2030 | /* To assist in parsing client/server key exchange messages
2031 | 0 indicates unknown */
2032 | int ssl_get_keyex_alg(int cipher)
2033 | {
2034 | /* Map Cipher suite number to Key Exchange algorithm {{{ */
2035 | switch(cipher) {
2036 | case 0x0017:
2037 | case 0x0018:
2038 | case 0x0019:
2039 | case 0x001a:
2040 | case 0x001b:
2041 | case 0x0034:
2042 | case 0x003a:
2043 | case 0x0046:
2044 | case 0x006c:
2045 | case 0x006d:
2046 | case 0x0089:
2047 | case 0x009b:
2048 | case 0x00a6:
2049 | case 0x00a7:
2050 | case 0x00bf:
2051 | case 0x00c5:
2052 | case 0xc084:
2053 | case 0xc085:
2054 | return KEX_DH_ANON0x13;
2055 | case 0x000b:
2056 | case 0x000c:
2057 | case 0x000d:
2058 | case 0x0030:
2059 | case 0x0036:
2060 | case 0x003e:
2061 | case 0x0042:
2062 | case 0x0068:
2063 | case 0x0085:
2064 | case 0x0097:
2065 | case 0x00a4:
2066 | case 0x00a5:
2067 | case 0x00bb:
2068 | case 0x00c1:
2069 | case 0xc082:
2070 | case 0xc083:
2071 | return KEX_DH_DSS0x14;
2072 | case 0x000e:
2073 | case 0x000f:
2074 | case 0x0010:
2075 | case 0x0031:
2076 | case 0x0037:
2077 | case 0x003f:
2078 | case 0x0043:
2079 | case 0x0069:
2080 | case 0x0086:
2081 | case 0x0098:
2082 | case 0x00a0:
2083 | case 0x00a1:
2084 | case 0x00bc:
2085 | case 0x00c2:
2086 | case 0xc07e:
2087 | case 0xc07f:
2088 | return KEX_DH_RSA0x15;
2089 | case 0x0011:
2090 | case 0x0012:
2091 | case 0x0013:
2092 | case 0x0032:
2093 | case 0x0038:
2094 | case 0x0040:
2095 | case 0x0044:
2096 | case 0x0063:
2097 | case 0x0065:
2098 | case 0x0066:
2099 | case 0x006a:
2100 | case 0x0087:
2101 | case 0x0099:
2102 | case 0x00a2:
2103 | case 0x00a3:
2104 | case 0x00bd:
2105 | case 0x00c3:
2106 | case 0xc080:
2107 | case 0xc081:
2108 | return KEX_DHE_DSS0x10;
2109 | case 0x002d:
2110 | case 0x008e:
2111 | case 0x008f:
2112 | case 0x0090:
2113 | case 0x0091:
2114 | case 0x00aa:
2115 | case 0x00ab:
2116 | case 0x00b2:
2117 | case 0x00b3:
2118 | case 0x00b4:
2119 | case 0x00b5:
2120 | case 0xc090:
2121 | case 0xc091:
2122 | case 0xc096:
2123 | case 0xc097:
2124 | case 0xc0a6:
2125 | case 0xc0a7:
2126 | case 0xc0aa:
2127 | case 0xc0ab:
2128 | case 0xccad:
2129 | case 0xe41c:
2130 | case 0xe41d:
2131 | return KEX_DHE_PSK0x11;
2132 | case 0x0014:
2133 | case 0x0015:
2134 | case 0x0016:
2135 | case 0x0033:
2136 | case 0x0039:
2137 | case 0x0045:
2138 | case 0x0067:
2139 | case 0x006b:
2140 | case 0x0088:
2141 | case 0x009a:
2142 | case 0x009e:
2143 | case 0x009f:
2144 | case 0x00be:
2145 | case 0x00c4:
2146 | case 0xc07c:
2147 | case 0xc07d:
2148 | case 0xc09e:
2149 | case 0xc09f:
2150 | case 0xc0a2:
2151 | case 0xc0a3:
2152 | case 0xccaa:
2153 | case 0xe41e:
2154 | case 0xe41f:
2155 | return KEX_DHE_RSA0x12;
2156 | case 0xc015:
2157 | case 0xc016:
2158 | case 0xc017:
2159 | case 0xc018:
2160 | case 0xc019:
2161 | return KEX_ECDH_ANON0x19;
2162 | case 0xc001:
2163 | case 0xc002:
2164 | case 0xc003:
2165 | case 0xc004:
2166 | case 0xc005:
2167 | case 0xc025:
2168 | case 0xc026:
2169 | case 0xc02d:
2170 | case 0xc02e:
2171 | case 0xc074:
2172 | case 0xc075:
2173 | case 0xc088:
2174 | case 0xc089:
2175 | return KEX_ECDH_ECDSA0x1a;
2176 | case 0xc00b:
2177 | case 0xc00c:
2178 | case 0xc00d:
2179 | case 0xc00e:
2180 | case 0xc00f:
2181 | case 0xc029:
2182 | case 0xc02a:
2183 | case 0xc031:
2184 | case 0xc032:
2185 | case 0xc078:
2186 | case 0xc079:
2187 | case 0xc08c:
2188 | case 0xc08d:
2189 | return KEX_ECDH_RSA0x1b;
2190 | case 0xc006:
2191 | case 0xc007:
2192 | case 0xc008:
2193 | case 0xc009:
2194 | case 0xc00a:
2195 | case 0xc023:
2196 | case 0xc024:
2197 | case 0xc02b:
2198 | case 0xc02c:
2199 | case 0xc072:
2200 | case 0xc073:
2201 | case 0xc086:
2202 | case 0xc087:
2203 | case 0xc0ac:
2204 | case 0xc0ad:
2205 | case 0xc0ae:
2206 | case 0xc0af:
2207 | case 0xcca9:
2208 | case 0xe414:
2209 | case 0xe415:
2210 | return KEX_ECDHE_ECDSA0x16;
2211 | case 0xc033:
2212 | case 0xc034:
2213 | case 0xc035:
2214 | case 0xc036:
2215 | case 0xc037:
2216 | case 0xc038:
2217 | case 0xc039:
2218 | case 0xc03a:
2219 | case 0xc03b:
2220 | case 0xc09a:
2221 | case 0xc09b:
2222 | case 0xccac:
2223 | case 0xe418:
2224 | case 0xe419:
2225 | case 0xd001:
2226 | case 0xd002:
2227 | case 0xd003:
2228 | case 0xd005:
2229 | return KEX_ECDHE_PSK0x17;
2230 | case 0xc010:
2231 | case 0xc011:
2232 | case 0xc012:
2233 | case 0xc013:
2234 | case 0xc014:
2235 | case 0xc027:
2236 | case 0xc028:
2237 | case 0xc02f:
2238 | case 0xc030:
2239 | case 0xc076:
2240 | case 0xc077:
2241 | case 0xc08a:
2242 | case 0xc08b:
2243 | case 0xcca8:
2244 | case 0xe412:
2245 | case 0xe413:
2246 | return KEX_ECDHE_RSA0x18;
2247 | case 0x001e:
2248 | case 0x001f:
2249 | case 0x0020:
2250 | case 0x0021:
2251 | case 0x0022:
2252 | case 0x0023:
2253 | case 0x0024:
2254 | case 0x0025:
2255 | case 0x0026:
2256 | case 0x0027:
2257 | case 0x0028:
2258 | case 0x0029:
2259 | case 0x002a:
2260 | case 0x002b:
2261 | return KEX_KRB50x1c;
2262 | case 0x002c:
2263 | case 0x008a:
2264 | case 0x008b:
2265 | case 0x008c:
2266 | case 0x008d:
2267 | case 0x00a8:
2268 | case 0x00a9:
2269 | case 0x00ae:
2270 | case 0x00af:
2271 | case 0x00b0:
2272 | case 0x00b1:
2273 | case 0xc064:
2274 | case 0xc065:
2275 | case 0xc08e:
2276 | case 0xc08f:
2277 | case 0xc094:
2278 | case 0xc095:
2279 | case 0xc0a4:
2280 | case 0xc0a5:
2281 | case 0xc0a8:
2282 | case 0xc0a9:
2283 | case 0xccab:
2284 | case 0xe416:
2285 | case 0xe417:
2286 | return KEX_PSK0x1d;
2287 | case 0x0001:
2288 | case 0x0002:
2289 | case 0x0003:
2290 | case 0x0004:
2291 | case 0x0005:
2292 | case 0x0006:
2293 | case 0x0007:
2294 | case 0x0008:
2295 | case 0x0009:
2296 | case 0x000a:
2297 | case 0x002f:
2298 | case 0x0035:
2299 | case 0x003b:
2300 | case 0x003c:
2301 | case 0x003d:
2302 | case 0x0041:
2303 | case 0x0060:
2304 | case 0x0061:
2305 | case 0x0062:
2306 | case 0x0064:
2307 | case 0x0084:
2308 | case 0x0096:
2309 | case 0x009c:
2310 | case 0x009d:
2311 | case 0x00ba:
2312 | case 0x00c0:
2313 | case 0xc07a:
2314 | case 0xc07b:
2315 | case 0xc09c:
2316 | case 0xc09d:
2317 | case 0xc0a0:
2318 | case 0xc0a1:
2319 | case 0xe410:
2320 | case 0xe411:
2321 | case 0xfefe:
2322 | case 0xfeff:
2323 | case 0xffe0:
2324 | case 0xffe1:
2325 | return KEX_RSA0x1e;
2326 | case 0x002e:
2327 | case 0x0092:
2328 | case 0x0093:
2329 | case 0x0094:
2330 | case 0x0095:
2331 | case 0x00ac:
2332 | case 0x00ad:
2333 | case 0x00b6:
2334 | case 0x00b7:
2335 | case 0x00b8:
2336 | case 0x00b9:
2337 | case 0xc092:
2338 | case 0xc093:
2339 | case 0xc098:
2340 | case 0xc099:
2341 | case 0xccae:
2342 | case 0xe41a:
2343 | case 0xe41b:
2344 | return KEX_RSA_PSK0x1f;
2345 | case 0xc01a:
2346 | case 0xc01d:
2347 | case 0xc020:
2348 | return KEX_SRP_SHA0x20;
2349 | case 0xc01c:
2350 | case 0xc01f:
2351 | case 0xc022:
2352 | return KEX_SRP_SHA_DSS0x21;
2353 | case 0xc01b:
2354 | case 0xc01e:
2355 | case 0xc021:
2356 | return KEX_SRP_SHA_RSA0x22;
2357 | case 0xc0ff:
2358 | return KEX_ECJPAKE0x24;
2359 | case 0xe003:
2360 | case 0xe013:
2361 | case 0xe053:
2362 | return KEX_ECC_SM20x26;
2363 | default:
2364 | break;
2365 | }
2366 |
2367 | return 0;
2368 | /* }}} */
2369 | }
2370 |
2371 | static wmem_list_t *connection_id_session_list;
2372 |
2373 | void
2374 | ssl_init_cid_list(void) {
2375 | connection_id_session_list = wmem_list_new(wmem_file_scope());
2376 | }
2377 |
2378 | void
2379 | ssl_cleanup_cid_list(void) {
2380 | wmem_destroy_list(connection_id_session_list);
2381 | }
2382 |
2383 | void
2384 | ssl_add_session_by_cid(SslDecryptSession *session)
2385 | {
2386 | wmem_list_append(connection_id_session_list, session);
2387 | }
2388 |
2389 | SslDecryptSession *
2390 | ssl_get_session_by_cid(tvbuff_t *tvb, uint32_t offset)
2391 | {
2392 | SslDecryptSession * ssl_cid = NULL((void*)0);
2393 | wmem_list_frame_t *it = wmem_list_head(connection_id_session_list);
2394 |
2395 | while (it != NULL((void*)0) && ssl_cid == NULL((void*)0)) {
2396 | SslDecryptSession * ssl = (SslDecryptSession *)wmem_list_frame_data(it);
2397 | DISSECTOR_ASSERT(ssl != NULL)((void) ((ssl != ((void*)0)) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 2397, "ssl != ((void*)0)"))));
2398 | SslSession *session = &ssl->session;
2399 |
2400 | if (session->client_cid_len > 0 && tvb_bytes_exist(tvb, offset, session->client_cid_len)) {
2401 | if (tvb_memeql(tvb, offset, session->client_cid, session->client_cid_len) == 0) {
2402 | ssl_cid = ssl;
2403 | }
2404 | }
2405 |
2406 | if (session->server_cid_len > 0) {
2407 | if (tvb_memeql(tvb, offset, session->server_cid, session->server_cid_len) == 0) {
2408 | ssl_cid = ssl;
2409 | }
2410 | }
2411 |
2412 | it = wmem_list_frame_next(it);
2413 | }
2414 |
2415 | return ssl_cid;
2416 | }
2417 |
2418 | /* StringInfo structure (len + data) functions {{{ */
2419 |
2420 | int
2421 | ssl_data_alloc(StringInfo* str, size_t len)
2422 | {
2423 | str->data = (unsigned char *)g_malloc(len);
16 | ← | Memory is allocated | →
2424 | /* the allocator can return a null pointer for a size equal to 0,
2425 | * and that must be allowed */
2426 | if (len
16.1 | 'len' is > 0
> 0 && !str->data)
17 | ← | Assuming field 'data' is non-null | →
18 | ← | Taking false branch | →
2427 | return -1;
2428 | str->data_len = (unsigned) len;
2429 | return 0;
2430 | }
2431 |
2432 | void
2433 | ssl_data_set(StringInfo* str, const unsigned char* data, unsigned len)
2434 | {
2435 | DISSECTOR_ASSERT(data)((void) ((data) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 2435, "data"))));
2436 | memcpy(str->data, data, len);
2437 | str->data_len = len;
2438 | }
2439 |
2440 | static int
2441 | ssl_data_realloc(StringInfo* str, unsigned len)
2442 | {
2443 | str->data = (unsigned char *)g_realloc(str->data, len);
2444 | if (!str->data)
2445 | return -1;
2446 | str->data_len = len;
2447 | return 0;
2448 | }
2449 |
2450 | static StringInfo *
2451 | ssl_data_clone(StringInfo *str)
2452 | {
2453 | StringInfo *cloned_str;
2454 | cloned_str = (StringInfo *) wmem_alloc0(wmem_file_scope(),
2455 | sizeof(StringInfo) + str->data_len);
2456 | cloned_str->data = (unsigned char *) (cloned_str + 1);
2457 | ssl_data_set(cloned_str, str->data, str->data_len);
2458 | return cloned_str;
2459 | }
2460 |
2461 | static int
2462 | ssl_data_copy(StringInfo* dst, StringInfo* src)
2463 | {
2464 | if (dst->data_len < src->data_len) {
2465 | if (ssl_data_realloc(dst, src->data_len))
2466 | return -1;
2467 | }
2468 | memcpy(dst->data, src->data, src->data_len);
2469 | dst->data_len = src->data_len;
2470 | return 0;
2471 | }
2472 |
2473 | /* from_hex converts |hex_len| bytes of hex data from |in| and sets |*out| to
2474 | * the result. |out->data| will be allocated using wmem_file_scope. Returns true on
2475 | * success. */
2476 | static bool_Bool from_hex(StringInfo* out, const char* in, size_t hex_len) {
2477 | size_t i;
2478 |
2479 | if (hex_len & 1)
2480 | return false0;
2481 |
2482 | out->data = (unsigned char *)wmem_alloc(wmem_file_scope(), hex_len / 2);
2483 | for (i = 0; i < hex_len / 2; i++) {
2484 | int a = ws_xton(in[i*2]);
2485 | int b = ws_xton(in[i*2 + 1]);
2486 | if (a == -1 || b == -1)
2487 | return false0;
2488 | out->data[i] = a << 4 | b;
2489 | }
2490 | out->data_len = (unsigned)hex_len / 2;
2491 | return true1;
2492 | }
2493 | /* StringInfo structure (len + data) functions }}} */
2494 |
2495 |
2496 | /* libgcrypt wrappers for HMAC/message digest operations {{{ */
2497 | /* hmac abstraction layer */
2498 | #define SSL_HMACgcry_md_hd_t gcry_md_hd_t
2499 |
2500 | static inline int
2501 | ssl_hmac_init(SSL_HMACgcry_md_hd_t* md, int algo)
2502 | {
2503 | gcry_error_t err;
2504 | const char *err_str, *err_src;
2505 |
2506 | err = gcry_md_open(md,algo, GCRY_MD_FLAG_HMAC);
2507 | if (err != 0) {
2508 | err_str = gcry_strerror(err);
2509 | err_src = gcry_strsource(err);
2510 | ssl_debug_printf("ssl_hmac_init(): gcry_md_open failed %s/%s", err_str, err_src);
2511 | return -1;
2512 | }
2513 | return 0;
2514 | }
2515 |
2516 | static inline int
2517 | ssl_hmac_setkey(SSL_HMACgcry_md_hd_t* md, const void * key, int len)
2518 | {
2519 | gcry_error_t err;
2520 | const char *err_str, *err_src;
2521 |
2522 | err = gcry_md_setkey (*(md), key, len);
2523 | if (err != 0) {
2524 | err_str = gcry_strerror(err);
2525 | err_src = gcry_strsource(err);
2526 | ssl_debug_printf("ssl_hmac_setkey(): gcry_md_setkey failed %s/%s", err_str, err_src);
2527 | return -1;
2528 | }
2529 | return 0;
2530 | }
2531 |
2532 | static inline int
2533 | ssl_hmac_reset(SSL_HMACgcry_md_hd_t* md)
2534 | {
2535 | gcry_md_reset(*md);
2536 | return 0;
2537 | }
2538 |
2539 | static inline void
2540 | ssl_hmac_update(SSL_HMACgcry_md_hd_t* md, const void* data, int len)
2541 | {
2542 | gcry_md_write(*(md), data, len);
2543 | }
2544 | static inline void
2545 | ssl_hmac_final(SSL_HMACgcry_md_hd_t* md, unsigned char* data, unsigned* datalen)
2546 | {
2547 | int algo;
2548 | unsigned len;
2549 |
2550 | algo = gcry_md_get_algo (*(md));
2551 | len = gcry_md_get_algo_dlen(algo);
2552 | DISSECTOR_ASSERT(len <= *datalen)((void) ((len <= *datalen) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 2552, "len <= *datalen"))));
2553 | memcpy(data, gcry_md_read(*(md), algo), len);
2554 | *datalen = len;
2555 | }
2556 | static inline void
2557 | ssl_hmac_cleanup(SSL_HMACgcry_md_hd_t* md)
2558 | {
2559 | gcry_md_close(*(md));
2560 | }
2561 |
2562 | /* message digest abstraction layer*/
2563 | #define SSL_MDgcry_md_hd_t gcry_md_hd_t
2564 |
2565 | static inline int
2566 | ssl_md_init(SSL_MDgcry_md_hd_t* md, int algo)
2567 | {
2568 | gcry_error_t err;
2569 | const char *err_str, *err_src;
2570 | err = gcry_md_open(md,algo, 0);
2571 | if (err != 0) {
2572 | err_str = gcry_strerror(err);
2573 | err_src = gcry_strsource(err);
2574 | ssl_debug_printf("ssl_md_init(): gcry_md_open failed %s/%s", err_str, err_src);
2575 | return -1;
2576 | }
2577 | return 0;
2578 | }
2579 | static inline void
2580 | ssl_md_update(SSL_MDgcry_md_hd_t* md, const unsigned char* data, unsigned len)
2581 | {
2582 | gcry_md_write(*(md), data, len);
2583 | }
2584 | static inline void
2585 | ssl_md_final(SSL_MDgcry_md_hd_t* md, unsigned char* data, unsigned* datalen)
2586 | {
2587 | int algo;
2588 | int len;
2589 | algo = gcry_md_get_algo (*(md));
2590 | len = gcry_md_get_algo_dlen (algo);
2591 | memcpy(data, gcry_md_read(*(md), algo), len);
2592 | *datalen = len;
2593 | }
2594 | static inline void
2595 | ssl_md_cleanup(SSL_MDgcry_md_hd_t* md)
2596 | {
2597 | gcry_md_close(*(md));
2598 | }
2599 |
2600 | static inline void
2601 | ssl_md_reset(SSL_MDgcry_md_hd_t* md)
2602 | {
2603 | gcry_md_reset(*md);
2604 | }
2605 |
2606 | /* md5 /sha abstraction layer */
2607 | #define SSL_SHA_CTXgcry_md_hd_t gcry_md_hd_t
2608 | #define SSL_MD5_CTXgcry_md_hd_t gcry_md_hd_t
2609 |
2610 | static inline int
2611 | ssl_sha_init(SSL_SHA_CTXgcry_md_hd_t* md)
2612 | {
2613 | gcry_error_t err;
2614 | const char *err_str, *err_src;
2615 | err = gcry_md_open(md, GCRY_MD_SHA1, 0);
2616 | if (err != 0) {
2617 | err_str = gcry_strerror(err);
2618 | err_src = gcry_strsource(err);
2619 | ssl_debug_printf("ssl_sha_init(): gcry_md_open failed %s/%s", err_str, err_src);
2620 | return -1;
2621 | }
2622 | return 0;
2623 | }
2624 | static inline void
2625 | ssl_sha_update(SSL_SHA_CTXgcry_md_hd_t* md, unsigned char* data, int len)
2626 | {
2627 | gcry_md_write(*(md), data, len);
2628 | }
2629 | static inline void
2630 | ssl_sha_final(unsigned char* buf, SSL_SHA_CTXgcry_md_hd_t* md)
2631 | {
2632 | memcpy(buf, gcry_md_read(*(md), GCRY_MD_SHA1),
2633 | gcry_md_get_algo_dlen(GCRY_MD_SHA1));
2634 | }
2635 |
2636 | static inline void
2637 | ssl_sha_reset(SSL_SHA_CTXgcry_md_hd_t* md)
2638 | {
2639 | gcry_md_reset(*md);
2640 | }
2641 |
2642 | static inline void
2643 | ssl_sha_cleanup(SSL_SHA_CTXgcry_md_hd_t* md)
2644 | {
2645 | gcry_md_close(*(md));
2646 | }
2647 |
2648 | static inline int
2649 | ssl_md5_init(SSL_MD5_CTXgcry_md_hd_t* md)
2650 | {
2651 | gcry_error_t err;
2652 | const char *err_str, *err_src;
2653 | err = gcry_md_open(md,GCRY_MD_MD5, 0);
2654 | if (err != 0) {
2655 | err_str = gcry_strerror(err);
2656 | err_src = gcry_strsource(err);
2657 | ssl_debug_printf("ssl_md5_init(): gcry_md_open failed %s/%s", err_str, err_src);
2658 | return -1;
2659 | }
2660 | return 0;
2661 | }
2662 | static inline void
2663 | ssl_md5_update(SSL_MD5_CTXgcry_md_hd_t* md, unsigned char* data, int len)
2664 | {
2665 | gcry_md_write(*(md), data, len);
2666 | }
2667 | static inline void
2668 | ssl_md5_final(unsigned char* buf, SSL_MD5_CTXgcry_md_hd_t* md)
2669 | {
2670 | memcpy(buf, gcry_md_read(*(md), GCRY_MD_MD5),
2671 | gcry_md_get_algo_dlen(GCRY_MD_MD5));
2672 | }
2673 |
2674 | static inline void
2675 | ssl_md5_reset(SSL_MD5_CTXgcry_md_hd_t* md)
2676 | {
2677 | gcry_md_reset(*md);
2678 | }
2679 |
2680 | static inline void
2681 | ssl_md5_cleanup(SSL_MD5_CTXgcry_md_hd_t* md)
2682 | {
2683 | gcry_md_close(*(md));
2684 | }
2685 | /* libgcrypt wrappers for HMAC/message digest operations }}} */
2686 |
2687 | /* libgcrypt wrappers for Cipher state manipulation {{{ */
2688 | int
2689 | ssl_cipher_setiv(SSL_CIPHER_CTXgcry_cipher_hd_t *cipher, unsigned char* iv, int iv_len)
2690 | {
2691 | int ret;
2692 | #if 0
2693 | unsigned char *ivp;
2694 | int i;
2695 | gcry_cipher_hd_t c;
2696 | c=(gcry_cipher_hd_t)*cipher;
2697 | #endif
2698 | ssl_debug_printf("--------------------------------------------------------------------");
2699 | #if 0
2700 | for(ivp=c->iv,i=0; i < iv_len; i++ )
2701 | {
2702 | ssl_debug_printf("%d ",ivp[i]);
2703 | i++;
2704 | }
2705 | #endif
2706 | ssl_debug_printf("--------------------------------------------------------------------");
2707 | ret = gcry_cipher_setiv(*(cipher), iv, iv_len);
2708 | #if 0
2709 | for(ivp=c->iv,i=0; i < iv_len; i++ )
2710 | {
2711 | ssl_debug_printf("%d ",ivp[i]);
2712 | i++;
2713 | }
2714 | #endif
2715 | ssl_debug_printf("--------------------------------------------------------------------");
2716 | return ret;
2717 | }
2718 | /* stream cipher abstraction layer*/
2719 | static int
2720 | ssl_cipher_init(gcry_cipher_hd_t *cipher, int algo, unsigned char* sk,
2721 | unsigned char* iv, int mode)
2722 | {
2723 | int gcry_modes[] = {
2724 | GCRY_CIPHER_MODE_STREAM,
2725 | GCRY_CIPHER_MODE_CBC,
2726 | GCRY_CIPHER_MODE_GCM,
2727 | GCRY_CIPHER_MODE_CCM,
2728 | GCRY_CIPHER_MODE_CCM,
2729 | GCRY_CIPHER_MODE_POLY1305,
2730 | GCRY_CIPHER_MODE_ECB, /* used for DTLSv1.3 seq number encryption */
2731 | };
2732 | int err;
2733 | if (algo == -1) {
2734 | /* NULL mode */
2735 | *(cipher) = (gcry_cipher_hd_t)-1;
2736 | return 0;
2737 | }
2738 | err = gcry_cipher_open(cipher, algo, gcry_modes[mode], 0);
2739 | if (err !=0)
2740 | return -1;
2741 | err = gcry_cipher_setkey(*(cipher), sk, gcry_cipher_get_algo_keylen (algo));
2742 | if (err != 0)
2743 | return -1;
2744 | /* AEAD cipher suites will set the nonce later. */
2745 | if (mode == MODE_CBC) {
2746 | err = gcry_cipher_setiv(*(cipher), iv, gcry_cipher_get_algo_blklen(algo));
2747 | if (err != 0)
2748 | return -1;
2749 | }
2750 | return 0;
2751 | }
2752 | static inline int
2753 | ssl_cipher_decrypt(gcry_cipher_hd_t *cipher, unsigned char * out, int outl,
2754 | const unsigned char * in, int inl)
2755 | {
2756 | if ((*cipher) == (gcry_cipher_hd_t)-1)
2757 | {
2758 | if (in && inl)
2759 | memcpy(out, in, outl < inl ? outl : inl);
2760 | return 0;
2761 | }
2762 | return gcry_cipher_decrypt ( *(cipher), out, outl, in, inl);
2763 | }
2764 | static inline int
2765 | ssl_get_digest_by_name(const char*name)
2766 | {
2767 | return gcry_md_map_name(name);
2768 | }
2769 | static inline int
2770 | ssl_get_cipher_by_name(const char* name)
2771 | {
2772 | return gcry_cipher_map_name(name);
2773 | }
2774 |
2775 | static inline void
2776 | ssl_cipher_cleanup(gcry_cipher_hd_t *cipher)
2777 | {
2778 | if ((*cipher) != (gcry_cipher_hd_t)-1)
2779 | gcry_cipher_close(*cipher);
2780 | *cipher = NULL((void*)0);
2781 | }
2782 | /* }}} */
2783 |
2784 | /* Digests, Ciphers and Cipher Suites registry {{{ */
2785 | static const SslDigestAlgo digests[]={
2786 | {"MD5", 16},
2787 | {"SHA1", 20},
2788 | {"SHA256", 32},
2789 | {"SHA384", 48},
2790 | {"SM3", 32},
2791 | {"Not Applicable", 0},
2792 | };
2793 |
2794 | #define DIGEST_MAX_SIZE48 48
2795 |
2796 | /* get index digest index */
2797 | static const SslDigestAlgo *
2798 | ssl_cipher_suite_dig(const SslCipherSuite *cs) {
2799 | if (!cs || cs->dig < DIG_MD50x40 || cs->dig > DIG_NA0x45) {
2800 | return &digests[DIG_NA0x45 - DIG_MD50x40];
2801 | }
2802 | return &digests[cs->dig - DIG_MD50x40];
2803 | }
2804 |
2805 | static const char *ciphers[]={
2806 | "DES",
2807 | "3DES",
2808 | "ARCFOUR", /* libgcrypt does not support rc4, but this should be 100% compatible*/
2809 | "RFC2268_128", /* libgcrypt name for RC2 with a 128-bit key */
2810 | "IDEA",
2811 | "AES",
2812 | "AES256",
2813 | "CAMELLIA128",
2814 | "CAMELLIA256",
2815 | "SEED",
2816 | "CHACHA20", /* since Libgcrypt 1.7.0 */
2817 | "SM1",
2818 | "SM4",
2819 | "*UNKNOWN*"
2820 | };
2821 |
2822 | static const SslCipherSuite cipher_suites[]={
2823 | {0x0001,KEX_RSA0x1e, ENC_NULL0x3D, DIG_MD50x40, MODE_STREAM}, /* TLS_RSA_WITH_NULL_MD5 */
2824 | {0x0002,KEX_RSA0x1e, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_RSA_WITH_NULL_SHA */
2825 | {0x0003,KEX_RSA0x1e, ENC_RC40x32, DIG_MD50x40, MODE_STREAM}, /* TLS_RSA_EXPORT_WITH_RC4_40_MD5 */
2826 | {0x0004,KEX_RSA0x1e, ENC_RC40x32, DIG_MD50x40, MODE_STREAM}, /* TLS_RSA_WITH_RC4_128_MD5 */
2827 | {0x0005,KEX_RSA0x1e, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_RSA_WITH_RC4_128_SHA */
2828 | {0x0006,KEX_RSA0x1e, ENC_RC20x33, DIG_MD50x40, MODE_CBC }, /* TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 */
2829 | {0x0007,KEX_RSA0x1e, ENC_IDEA0x34, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_IDEA_CBC_SHA */
2830 | {0x0008,KEX_RSA0x1e, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_EXPORT_WITH_DES40_CBC_SHA */
2831 | {0x0009,KEX_RSA0x1e, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_DES_CBC_SHA */
2832 | {0x000A,KEX_RSA0x1e, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_3DES_EDE_CBC_SHA */
2833 | {0x000B,KEX_DH_DSS0x14, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA */
2834 | {0x000C,KEX_DH_DSS0x14, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_DES_CBC_SHA */
2835 | {0x000D,KEX_DH_DSS0x14, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA */
2836 | {0x000E,KEX_DH_RSA0x15, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA */
2837 | {0x000F,KEX_DH_RSA0x15, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_DES_CBC_SHA */
2838 | {0x0010,KEX_DH_RSA0x15, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA */
2839 | {0x0011,KEX_DHE_DSS0x10, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA */
2840 | {0x0012,KEX_DHE_DSS0x10, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_DES_CBC_SHA */
2841 | {0x0013,KEX_DHE_DSS0x10, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA */
2842 | {0x0014,KEX_DHE_RSA0x12, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA */
2843 | {0x0015,KEX_DHE_RSA0x12, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_DES_CBC_SHA */
2844 | {0x0016,KEX_DHE_RSA0x12, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA */
2845 | {0x0017,KEX_DH_ANON0x13, ENC_RC40x32, DIG_MD50x40, MODE_STREAM}, /* TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 */
2846 | {0x0018,KEX_DH_ANON0x13, ENC_RC40x32, DIG_MD50x40, MODE_STREAM}, /* TLS_DH_anon_WITH_RC4_128_MD5 */
2847 | {0x0019,KEX_DH_ANON0x13, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA */
2848 | {0x001A,KEX_DH_ANON0x13, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_DES_CBC_SHA */
2849 | {0x001B,KEX_DH_ANON0x13, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_3DES_EDE_CBC_SHA */
2850 | {0x002C,KEX_PSK0x1d, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA */
2851 | {0x002D,KEX_DHE_PSK0x11, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA */
2852 | {0x002E,KEX_RSA_PSK0x1f, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA */
2853 | {0x002F,KEX_RSA0x1e, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_AES_128_CBC_SHA */
2854 | {0x0030,KEX_DH_DSS0x14, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_128_CBC_SHA */
2855 | {0x0031,KEX_DH_RSA0x15, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_128_CBC_SHA */
2856 | {0x0032,KEX_DHE_DSS0x10, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA */
2857 | {0x0033,KEX_DHE_RSA0x12, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA */
2858 | {0x0034,KEX_DH_ANON0x13, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_AES_128_CBC_SHA */
2859 | {0x0035,KEX_RSA0x1e, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_AES_256_CBC_SHA */
2860 | {0x0036,KEX_DH_DSS0x14, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_256_CBC_SHA */
2861 | {0x0037,KEX_DH_RSA0x15, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_256_CBC_SHA */
2862 | {0x0038,KEX_DHE_DSS0x10, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA */
2863 | {0x0039,KEX_DHE_RSA0x12, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA */
2864 | {0x003A,KEX_DH_ANON0x13, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_AES_256_CBC_SHA */
2865 | {0x003B,KEX_RSA0x1e, ENC_NULL0x3D, DIG_SHA2560x42, MODE_STREAM}, /* TLS_RSA_WITH_NULL_SHA256 */
2866 | {0x003C,KEX_RSA0x1e, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_WITH_AES_128_CBC_SHA256 */
2867 | {0x003D,KEX_RSA0x1e, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_WITH_AES_256_CBC_SHA256 */
2868 | {0x003E,KEX_DH_DSS0x14, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_128_CBC_SHA256 */
2869 | {0x003F,KEX_DH_RSA0x15, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_128_CBC_SHA256 */
2870 | {0x0040,KEX_DHE_DSS0x10, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 */
2871 | {0x0041,KEX_RSA0x1e, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA */
2872 | {0x0042,KEX_DH_DSS0x14, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA */
2873 | {0x0043,KEX_DH_RSA0x15, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA */
2874 | {0x0044,KEX_DHE_DSS0x10, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA */
2875 | {0x0045,KEX_DHE_RSA0x12, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA */
2876 | {0x0046,KEX_DH_ANON0x13, ENC_CAMELLIA1280x37,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA */
2877 | {0x0060,KEX_RSA0x1e, ENC_RC40x32, DIG_MD50x40, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC4_56_MD5 */
2878 | {0x0061,KEX_RSA0x1e, ENC_RC20x33, DIG_MD50x40, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5 */
2879 | {0x0062,KEX_RSA0x1e, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA */
2880 | {0x0063,KEX_DHE_DSS0x10, ENC_DES0x30, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA */
2881 | {0x0064,KEX_RSA0x1e, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_RSA_EXPORT1024_WITH_RC4_56_SHA */
2882 | {0x0065,KEX_DHE_DSS0x10, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA */
2883 | {0x0066,KEX_DHE_DSS0x10, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_DHE_DSS_WITH_RC4_128_SHA */
2884 | {0x0067,KEX_DHE_RSA0x12, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 */
2885 | {0x0068,KEX_DH_DSS0x14, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_DSS_WITH_AES_256_CBC_SHA256 */
2886 | {0x0069,KEX_DH_RSA0x15, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_RSA_WITH_AES_256_CBC_SHA256 */
2887 | {0x006A,KEX_DHE_DSS0x10, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 */
2888 | {0x006B,KEX_DHE_RSA0x12, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 */
2889 | {0x006C,KEX_DH_ANON0x13, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_anon_WITH_AES_128_CBC_SHA256 */
2890 | {0x006D,KEX_DH_ANON0x13, ENC_AES2560x36, DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_anon_WITH_AES_256_CBC_SHA256 */
2891 | {0x0084,KEX_RSA0x1e, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA */
2892 | {0x0085,KEX_DH_DSS0x14, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA */
2893 | {0x0086,KEX_DH_RSA0x15, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA */
2894 | {0x0087,KEX_DHE_DSS0x10, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA */
2895 | {0x0088,KEX_DHE_RSA0x12, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA */
2896 | {0x0089,KEX_DH_ANON0x13, ENC_CAMELLIA2560x38,DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA */
2897 | {0x008A,KEX_PSK0x1d, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_PSK_WITH_RC4_128_SHA */
2898 | {0x008B,KEX_PSK0x1d, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_PSK_WITH_3DES_EDE_CBC_SHA */
2899 | {0x008C,KEX_PSK0x1d, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_PSK_WITH_AES_128_CBC_SHA */
2900 | {0x008D,KEX_PSK0x1d, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_PSK_WITH_AES_256_CBC_SHA */
2901 | {0x008E,KEX_DHE_PSK0x11, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_DHE_PSK_WITH_RC4_128_SHA */
2902 | {0x008F,KEX_DHE_PSK0x11, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA */
2903 | {0x0090,KEX_DHE_PSK0x11, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA */
2904 | {0x0091,KEX_DHE_PSK0x11, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA */
2905 | {0x0092,KEX_RSA_PSK0x1f, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_RSA_PSK_WITH_RC4_128_SHA */
2906 | {0x0093,KEX_RSA_PSK0x1f, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA */
2907 | {0x0094,KEX_RSA_PSK0x1f, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA */
2908 | {0x0095,KEX_RSA_PSK0x1f, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA */
2909 | {0x0096,KEX_RSA0x1e, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_RSA_WITH_SEED_CBC_SHA */
2910 | {0x0097,KEX_DH_DSS0x14, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_DSS_WITH_SEED_CBC_SHA */
2911 | {0x0098,KEX_DH_RSA0x15, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_RSA_WITH_SEED_CBC_SHA */
2912 | {0x0099,KEX_DHE_DSS0x10, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_DSS_WITH_SEED_CBC_SHA */
2913 | {0x009A,KEX_DHE_RSA0x12, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_DHE_RSA_WITH_SEED_CBC_SHA */
2914 | {0x009B,KEX_DH_ANON0x13, ENC_SEED0x39, DIG_SHA0x41, MODE_CBC }, /* TLS_DH_anon_WITH_SEED_CBC_SHA */
2915 | {0x009C,KEX_RSA0x1e, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_RSA_WITH_AES_128_GCM_SHA256 */
2916 | {0x009D,KEX_RSA0x1e, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_RSA_WITH_AES_256_GCM_SHA384 */
2917 | {0x009E,KEX_DHE_RSA0x12, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 */
2918 | {0x009F,KEX_DHE_RSA0x12, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 */
2919 | {0x00A0,KEX_DH_RSA0x15, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_RSA_WITH_AES_128_GCM_SHA256 */
2920 | {0x00A1,KEX_DH_RSA0x15, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_RSA_WITH_AES_256_GCM_SHA384 */
2921 | {0x00A2,KEX_DHE_DSS0x10, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 */
2922 | {0x00A3,KEX_DHE_DSS0x10, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 */
2923 | {0x00A4,KEX_DH_DSS0x14, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_DSS_WITH_AES_128_GCM_SHA256 */
2924 | {0x00A5,KEX_DH_DSS0x14, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_DSS_WITH_AES_256_GCM_SHA384 */
2925 | {0x00A6,KEX_DH_ANON0x13, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_anon_WITH_AES_128_GCM_SHA256 */
2926 | {0x00A7,KEX_DH_ANON0x13, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_anon_WITH_AES_256_GCM_SHA384 */
2927 | {0x00A8,KEX_PSK0x1d, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_PSK_WITH_AES_128_GCM_SHA256 */
2928 | {0x00A9,KEX_PSK0x1d, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_PSK_WITH_AES_256_GCM_SHA384 */
2929 | {0x00AA,KEX_DHE_PSK0x11, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 */
2930 | {0x00AB,KEX_DHE_PSK0x11, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 */
2931 | {0x00AC,KEX_RSA_PSK0x1f, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 */
2932 | {0x00AD,KEX_RSA_PSK0x1f, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 */
2933 | {0x00AE,KEX_PSK0x1d, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_PSK_WITH_AES_128_CBC_SHA256 */
2934 | {0x00AF,KEX_PSK0x1d, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_PSK_WITH_AES_256_CBC_SHA384 */
2935 | {0x00B0,KEX_PSK0x1d, ENC_NULL0x3D, DIG_SHA2560x42, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA256 */
2936 | {0x00B1,KEX_PSK0x1d, ENC_NULL0x3D, DIG_SHA3840x43, MODE_STREAM}, /* TLS_PSK_WITH_NULL_SHA384 */
2937 | {0x00B2,KEX_DHE_PSK0x11, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 */
2938 | {0x00B3,KEX_DHE_PSK0x11, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 */
2939 | {0x00B4,KEX_DHE_PSK0x11, ENC_NULL0x3D, DIG_SHA2560x42, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA256 */
2940 | {0x00B5,KEX_DHE_PSK0x11, ENC_NULL0x3D, DIG_SHA3840x43, MODE_STREAM}, /* TLS_DHE_PSK_WITH_NULL_SHA384 */
2941 | {0x00B6,KEX_RSA_PSK0x1f, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 */
2942 | {0x00B7,KEX_RSA_PSK0x1f, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 */
2943 | {0x00B8,KEX_RSA_PSK0x1f, ENC_NULL0x3D, DIG_SHA2560x42, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA256 */
2944 | {0x00B9,KEX_RSA_PSK0x1f, ENC_NULL0x3D, DIG_SHA3840x43, MODE_STREAM}, /* TLS_RSA_PSK_WITH_NULL_SHA384 */
2945 | {0x00BA,KEX_RSA0x1e, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
2946 | {0x00BB,KEX_DH_DSS0x14, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 */
2947 | {0x00BC,KEX_DH_RSA0x15, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
2948 | {0x00BD,KEX_DHE_DSS0x10, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 */
2949 | {0x00BE,KEX_DHE_RSA0x12, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
2950 | {0x00BF,KEX_DH_ANON0x13, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 */
2951 | {0x00C0,KEX_RSA0x1e, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
2952 | {0x00C1,KEX_DH_DSS0x14, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 */
2953 | {0x00C2,KEX_DH_RSA0x15, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
2954 | {0x00C3,KEX_DHE_DSS0x10, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 */
2955 | {0x00C4,KEX_DHE_RSA0x12, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
2956 | {0x00C5,KEX_DH_ANON0x13, ENC_CAMELLIA2560x38,DIG_SHA2560x42, MODE_CBC }, /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 */
2957 |
2958 | /* NOTE: TLS 1.3 cipher suites are incompatible with TLS 1.2. */
2959 | {0x1301,KEX_TLS130x23, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_AES_128_GCM_SHA256 */
2960 | {0x1302,KEX_TLS130x23, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_AES_256_GCM_SHA384 */
2961 | {0x1303,KEX_TLS130x23, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_CHACHA20_POLY1305_SHA256 */
2962 | {0x1304,KEX_TLS130x23, ENC_AES0x35, DIG_SHA2560x42, MODE_CCM }, /* TLS_AES_128_CCM_SHA256 */
2963 | {0x1305,KEX_TLS130x23, ENC_AES0x35, DIG_SHA2560x42, MODE_CCM_8 }, /* TLS_AES_128_CCM_8_SHA256 */
2964 | {0x00C6,KEX_TLS130x23, ENC_SM40x3C, DIG_SM30x44, MODE_GCM }, /* TLS_SM4_GCM_SM3 */
2965 |
2966 | {0xC001,KEX_ECDH_ECDSA0x1a, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_ECDSA_WITH_NULL_SHA */
2967 | {0xC002,KEX_ECDH_ECDSA0x1a, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_ECDSA_WITH_RC4_128_SHA */
2968 | {0xC003,KEX_ECDH_ECDSA0x1a, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA */
2969 | {0xC004,KEX_ECDH_ECDSA0x1a, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA */
2970 | {0xC005,KEX_ECDH_ECDSA0x1a, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA */
2971 | {0xC006,KEX_ECDHE_ECDSA0x16, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_ECDSA_WITH_NULL_SHA */
2972 | {0xC007,KEX_ECDHE_ECDSA0x16, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_ECDSA_WITH_RC4_128_SHA */
2973 | {0xC008,KEX_ECDHE_ECDSA0x16, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA */
2974 | {0xC009,KEX_ECDHE_ECDSA0x16, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA */
2975 | {0xC00A,KEX_ECDHE_ECDSA0x16, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA */
2976 | {0xC00B,KEX_ECDH_RSA0x1b, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_RSA_WITH_NULL_SHA */
2977 | {0xC00C,KEX_ECDH_RSA0x1b, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_RSA_WITH_RC4_128_SHA */
2978 | {0xC00D,KEX_ECDH_RSA0x1b, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA */
2979 | {0xC00E,KEX_ECDH_RSA0x1b, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA */
2980 | {0xC00F,KEX_ECDH_RSA0x1b, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA */
2981 | {0xC0FF,KEX_ECJPAKE0x24, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_ECJPAKE_WITH_AES_128_CCM_8 */
2982 | {0xC010,KEX_ECDHE_RSA0x18, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_RSA_WITH_NULL_SHA */
2983 | {0xC011,KEX_ECDHE_RSA0x18, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_RSA_WITH_RC4_128_SHA */
2984 | {0xC012,KEX_ECDHE_RSA0x18, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA */
2985 | {0xC013,KEX_ECDHE_RSA0x18, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA */
2986 | {0xC014,KEX_ECDHE_RSA0x18, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA */
2987 | {0xC015,KEX_ECDH_ANON0x19, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_anon_WITH_NULL_SHA */
2988 | {0xC016,KEX_ECDH_ANON0x19, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDH_anon_WITH_RC4_128_SHA */
2989 | {0xC017,KEX_ECDH_ANON0x19, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA */
2990 | {0xC018,KEX_ECDH_ANON0x19, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_anon_WITH_AES_128_CBC_SHA */
2991 | {0xC019,KEX_ECDH_ANON0x19, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDH_anon_WITH_AES_256_CBC_SHA */
2992 | {0xC01A,KEX_SRP_SHA0x20, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA */
2993 | {0xC01B,KEX_SRP_SHA_RSA0x22, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA */
2994 | {0xC01C,KEX_SRP_SHA_DSS0x21, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA */
2995 | {0xC01D,KEX_SRP_SHA0x20, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_WITH_AES_128_CBC_SHA */
2996 | {0xC01E,KEX_SRP_SHA_RSA0x22, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA */
2997 | {0xC01F,KEX_SRP_SHA_DSS0x21, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA */
2998 | {0xC020,KEX_SRP_SHA0x20, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_WITH_AES_256_CBC_SHA */
2999 | {0xC021,KEX_SRP_SHA_RSA0x22, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA */
3000 | {0xC022,KEX_SRP_SHA_DSS0x21, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA */
3001 | {0xC023,KEX_ECDHE_ECDSA0x16, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 */
3002 | {0xC024,KEX_ECDHE_ECDSA0x16, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 */
3003 | {0xC025,KEX_ECDH_ECDSA0x1a, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 */
3004 | {0xC026,KEX_ECDH_ECDSA0x1a, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 */
3005 | {0xC027,KEX_ECDHE_RSA0x18, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 */
3006 | {0xC028,KEX_ECDHE_RSA0x18, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 */
3007 | {0xC029,KEX_ECDH_RSA0x1b, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 */
3008 | {0xC02A,KEX_ECDH_RSA0x1b, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 */
3009 | {0xC02B,KEX_ECDHE_ECDSA0x16, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 */
3010 | {0xC02C,KEX_ECDHE_ECDSA0x16, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 */
3011 | {0xC02D,KEX_ECDH_ECDSA0x1a, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 */
3012 | {0xC02E,KEX_ECDH_ECDSA0x1a, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 */
3013 | {0xC02F,KEX_ECDHE_RSA0x18, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 */
3014 | {0xC030,KEX_ECDHE_RSA0x18, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 */
3015 | {0xC031,KEX_ECDH_RSA0x1b, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 */
3016 | {0xC032,KEX_ECDH_RSA0x1b, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 */
3017 | {0xC033,KEX_ECDHE_PSK0x17, ENC_RC40x32, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_RC4_128_SHA */
3018 | {0xC034,KEX_ECDHE_PSK0x17, ENC_3DES0x31, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA */
3019 | {0xC035,KEX_ECDHE_PSK0x17, ENC_AES0x35, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA */
3020 | {0xC036,KEX_ECDHE_PSK0x17, ENC_AES2560x36, DIG_SHA0x41, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA */
3021 | {0xC037,KEX_ECDHE_PSK0x17, ENC_AES0x35, DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 */
3022 | {0xC038,KEX_ECDHE_PSK0x17, ENC_AES2560x36, DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 */
3023 | {0xC039,KEX_ECDHE_PSK0x17, ENC_NULL0x3D, DIG_SHA0x41, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA */
3024 | {0xC03A,KEX_ECDHE_PSK0x17, ENC_NULL0x3D, DIG_SHA2560x42, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA256 */
3025 | {0xC03B,KEX_ECDHE_PSK0x17, ENC_NULL0x3D, DIG_SHA3840x43, MODE_STREAM}, /* TLS_ECDHE_PSK_WITH_NULL_SHA384 */
3026 | {0xC072,KEX_ECDHE_ECDSA0x16, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */
3027 | {0xC073,KEX_ECDHE_ECDSA0x16, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */
3028 | {0xC074,KEX_ECDH_ECDSA0x1a, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */
3029 | {0xC075,KEX_ECDH_ECDSA0x1a, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */
3030 | {0xC076,KEX_ECDHE_RSA0x18, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
3031 | {0xC077,KEX_ECDHE_RSA0x18, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 */
3032 | {0xC078,KEX_ECDH_RSA0x1b, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
3033 | {0xC079,KEX_ECDH_RSA0x1b, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 */
3034 | {0xC07A,KEX_RSA0x1e, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
3035 | {0xC07B,KEX_RSA0x1e, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
3036 | {0xC07C,KEX_DHE_RSA0x12, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
3037 | {0xC07D,KEX_DHE_RSA0x12, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
3038 | {0xC07E,KEX_DH_RSA0x15, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
3039 | {0xC07F,KEX_DH_RSA0x15, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
3040 | {0xC080,KEX_DHE_DSS0x10, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 */
3041 | {0xC081,KEX_DHE_DSS0x10, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 */
3042 | {0xC082,KEX_DH_DSS0x14, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 */
3043 | {0xC083,KEX_DH_DSS0x14, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 */
3044 | {0xC084,KEX_DH_ANON0x13, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 */
3045 | {0xC085,KEX_DH_ANON0x13, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 */
3046 | {0xC086,KEX_ECDHE_ECDSA0x16, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 */
3047 | {0xC087,KEX_ECDHE_ECDSA0x16, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 */
3048 | {0xC088,KEX_ECDH_ECDSA0x1a, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 */
3049 | {0xC089,KEX_ECDH_ECDSA0x1a, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 */
3050 | {0xC08A,KEX_ECDHE_RSA0x18, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
3051 | {0xC08B,KEX_ECDHE_RSA0x18, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
3052 | {0xC08C,KEX_ECDH_RSA0x1b, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
3053 | {0xC08D,KEX_ECDH_RSA0x1b, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
3054 | {0xC08E,KEX_PSK0x1d, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 */
3055 | {0xC08F,KEX_PSK0x1d, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 */
3056 | {0xC090,KEX_DHE_PSK0x11, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 */
3057 | {0xC091,KEX_DHE_PSK0x11, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 */
3058 | {0xC092,KEX_RSA_PSK0x1f, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_GCM }, /* TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 */
3059 | {0xC093,KEX_RSA_PSK0x1f, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_GCM }, /* TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 */
3060 | {0xC094,KEX_PSK0x1d, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
3061 | {0xC095,KEX_PSK0x1d, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
3062 | {0xC096,KEX_DHE_PSK0x11, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
3063 | {0xC097,KEX_DHE_PSK0x11, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
3064 | {0xC098,KEX_RSA_PSK0x1f, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
3065 | {0xC099,KEX_RSA_PSK0x1f, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
3066 | {0xC09A,KEX_ECDHE_PSK0x17, ENC_CAMELLIA1280x37,DIG_SHA2560x42, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
3067 | {0xC09B,KEX_ECDHE_PSK0x17, ENC_CAMELLIA2560x38,DIG_SHA3840x43, MODE_CBC }, /* TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
3068 | {0xC09C,KEX_RSA0x1e, ENC_AES0x35, DIG_NA0x45, MODE_CCM }, /* TLS_RSA_WITH_AES_128_CCM */
3069 | {0xC09D,KEX_RSA0x1e, ENC_AES2560x36, DIG_NA0x45, MODE_CCM }, /* TLS_RSA_WITH_AES_256_CCM */
3070 | {0xC09E,KEX_DHE_RSA0x12, ENC_AES0x35, DIG_NA0x45, MODE_CCM }, /* TLS_DHE_RSA_WITH_AES_128_CCM */
3071 | {0xC09F,KEX_DHE_RSA0x12, ENC_AES2560x36, DIG_NA0x45, MODE_CCM }, /* TLS_DHE_RSA_WITH_AES_256_CCM */
3072 | {0xC0A0,KEX_RSA0x1e, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_RSA_WITH_AES_128_CCM_8 */
3073 | {0xC0A1,KEX_RSA0x1e, ENC_AES2560x36, DIG_NA0x45, MODE_CCM_8 }, /* TLS_RSA_WITH_AES_256_CCM_8 */
3074 | {0xC0A2,KEX_DHE_RSA0x12, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_DHE_RSA_WITH_AES_128_CCM_8 */
3075 | {0xC0A3,KEX_DHE_RSA0x12, ENC_AES2560x36, DIG_NA0x45, MODE_CCM_8 }, /* TLS_DHE_RSA_WITH_AES_256_CCM_8 */
3076 | {0xC0A4,KEX_PSK0x1d, ENC_AES0x35, DIG_NA0x45, MODE_CCM }, /* TLS_PSK_WITH_AES_128_CCM */
3077 | {0xC0A5,KEX_PSK0x1d, ENC_AES2560x36, DIG_NA0x45, MODE_CCM }, /* TLS_PSK_WITH_AES_256_CCM */
3078 | {0xC0A6,KEX_DHE_PSK0x11, ENC_AES0x35, DIG_NA0x45, MODE_CCM }, /* TLS_DHE_PSK_WITH_AES_128_CCM */
3079 | {0xC0A7,KEX_DHE_PSK0x11, ENC_AES2560x36, DIG_NA0x45, MODE_CCM }, /* TLS_DHE_PSK_WITH_AES_256_CCM */
3080 | {0xC0A8,KEX_PSK0x1d, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_PSK_WITH_AES_128_CCM_8 */
3081 | {0xC0A9,KEX_PSK0x1d, ENC_AES2560x36, DIG_NA0x45, MODE_CCM_8 }, /* TLS_PSK_WITH_AES_256_CCM_8 */
3082 | {0xC0AA,KEX_DHE_PSK0x11, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_PSK_DHE_WITH_AES_128_CCM_8 */
3083 | {0xC0AB,KEX_DHE_PSK0x11, ENC_AES2560x36, DIG_NA0x45, MODE_CCM_8 }, /* TLS_PSK_DHE_WITH_AES_256_CCM_8 */
3084 | {0xC0AC,KEX_ECDHE_ECDSA0x16, ENC_AES0x35, DIG_NA0x45, MODE_CCM }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CCM */
3085 | {0xC0AD,KEX_ECDHE_ECDSA0x16, ENC_AES2560x36, DIG_NA0x45, MODE_CCM }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CCM */
3086 | {0xC0AE,KEX_ECDHE_ECDSA0x16, ENC_AES0x35, DIG_NA0x45, MODE_CCM_8 }, /* TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 */
3087 | {0xC0AF,KEX_ECDHE_ECDSA0x16, ENC_AES2560x36, DIG_NA0x45, MODE_CCM_8 }, /* TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 */
3088 | {0xCCA8,KEX_ECDHE_RSA0x18, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 */
3089 | {0xCCA9,KEX_ECDHE_ECDSA0x16, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 */
3090 | {0xCCAA,KEX_DHE_RSA0x12, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 */
3091 | {0xCCAB,KEX_PSK0x1d, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 */
3092 | {0xCCAC,KEX_ECDHE_PSK0x17, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 */
3093 | {0xCCAD,KEX_DHE_PSK0x11, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 */
3094 | {0xCCAE,KEX_RSA_PSK0x1f, ENC_CHACHA200x3A, DIG_SHA2560x42, MODE_POLY1305 }, /* TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 */
3095 | {0xD001,KEX_ECDHE_PSK0x17, ENC_AES0x35, DIG_SHA2560x42, MODE_GCM}, /* TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256 */
3096 | {0xD002,KEX_ECDHE_PSK0x17, ENC_AES2560x36, DIG_SHA3840x43, MODE_GCM}, /* TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384 */
3097 | {0xD003,KEX_ECDHE_PSK0x17, ENC_AES0x35, DIG_SHA2560x42, MODE_CCM_8}, /* TLS_ECDHE_PSK_WITH_AES_128_CCM_8_SHA256 */
3098 | {0xD005,KEX_ECDHE_PSK0x17, ENC_AES0x35, DIG_SHA2560x42, MODE_CCM}, /* TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256 */
3099 | /* GM */
3100 | {0xe001,KEX_ECDHE_SM20x25, ENC_SM10x3B, DIG_SM30x44, MODE_CBC}, /* ECDHE_SM1_SM3 */
3101 | {0xe003,KEX_ECC_SM20x26, ENC_SM10x3B, DIG_SM30x44, MODE_CBC}, /* ECC_SM1_SM3 */
3102 | {0xe005,KEX_IBSDH_SM90x27, ENC_SM10x3B, DIG_SM30x44, MODE_CBC}, /* IBSDH_SM1_SM3 */
3103 | {0xe007,KEX_IBC_SM90x28, ENC_SM10x3B, DIG_SM30x44, MODE_CBC}, /* IBC_SM1_SM3 */
3104 | {0xe009,KEX_RSA0x1e, ENC_SM10x3B, DIG_SM30x44, MODE_CBC}, /* RSA_SM1_SM3 */
3105 | {0xe00a,KEX_RSA0x1e, ENC_SM10x3B, DIG_SHA0x41, MODE_CBC}, /* RSA_SM1_SHA1 */
3106 | {0xe011,KEX_ECDHE_SM20x25, ENC_SM40x3C, DIG_SM30x44, MODE_CBC}, /* ECDHE_SM4_CBC_SM3 */
3107 | {0xe013,KEX_ECC_SM20x26, ENC_SM40x3C, DIG_SM30x44, MODE_CBC}, /* ECC_SM4_CBC_SM3 */
3108 | {0xe015,KEX_IBSDH_SM90x27, ENC_SM40x3C, DIG_SM30x44, MODE_CBC}, /* IBSDH_SM4_CBC_SM3 */
3109 | {0xe017,KEX_IBC_SM90x28, ENC_SM40x3C, DIG_SM30x44, MODE_CBC}, /* IBC_SM4_CBC_SM3 */
3110 | {0xe019,KEX_RSA0x1e, ENC_SM40x3C, DIG_SM30x44, MODE_CBC}, /* RSA_SM4_CBC_SM3 */
3111 | {0xe01a,KEX_RSA0x1e, ENC_SM40x3C, DIG_SHA0x41, MODE_CBC}, /* RSA_SM4_CBC_SHA1 */
3112 | {0xe01c,KEX_RSA0x1e, ENC_SM40x3C, DIG_SHA2560x42, MODE_CBC}, /* RSA_SM4_CBC_SHA256 */
3113 | {0xe051,KEX_ECDHE_SM20x25, ENC_SM40x3C, DIG_SM30x44, MODE_GCM}, /* ECDHE_SM4_GCM_SM3 */
3114 | {0xe053,KEX_ECC_SM20x26, ENC_SM40x3C, DIG_SM30x44, MODE_GCM}, /* ECC_SM4_GCM_SM3 */
3115 | {0xe055,KEX_IBSDH_SM90x27, ENC_SM40x3C, DIG_SM30x44, MODE_GCM}, /* IBSDH_SM4_GCM_SM3 */
3116 | {0xe057,KEX_IBC_SM90x28, ENC_SM40x3C, DIG_SM30x44, MODE_GCM}, /* IBC_SM4_GCM_SM3 */
3117 | {0xe059,KEX_RSA0x1e, ENC_SM40x3C, DIG_SM30x44, MODE_GCM}, /* RSA_SM4_GCM_SM3 */
3118 | {0xe05a,KEX_RSA0x1e, ENC_SM40x3C, DIG_SHA2560x42, MODE_GCM}, /* RSA_SM4_GCM_SHA256 */
3119 | {-1, 0, 0, 0, MODE_STREAM}
3120 | };
3121 |
3122 | #define MAX_BLOCK_SIZE16 16
3123 | #define MAX_KEY_SIZE32 32
3124 |
3125 | const SslCipherSuite *
3126 | ssl_find_cipher(int num)
3127 | {
3128 | const SslCipherSuite *c;
3129 | for(c=cipher_suites;c->number!=-1;c++){
3130 | if(c->number==num){
3131 | return c;
3132 | }
3133 | }
3134 |
3135 | return NULL((void*)0);
3136 | }
3137 |
3138 | int
3139 | ssl_get_cipher_algo(const SslCipherSuite *cipher_suite)
3140 | {
3141 | return gcry_cipher_map_name(ciphers[cipher_suite->enc - ENC_START0x30]);
3142 | }
3143 |
3144 | unsigned
3145 | ssl_get_cipher_blocksize(const SslCipherSuite *cipher_suite)
3146 | {
3147 | int cipher_algo;
3148 | if (cipher_suite->mode != MODE_CBC) return 0;
3149 | cipher_algo = ssl_get_cipher_by_name(ciphers[cipher_suite->enc - ENC_START0x30]);
3150 | return (unsigned)gcry_cipher_get_algo_blklen(cipher_algo);
3151 | }
3152 |
3153 | static unsigned
3154 | ssl_get_cipher_export_keymat_size(int cipher_suite_num)
3155 | {
3156 | switch (cipher_suite_num) {
3157 | /* See RFC 6101 (SSL 3.0), Table 2, column Key Material. */
3158 | case 0x0003: /* TLS_RSA_EXPORT_WITH_RC4_40_MD5 */
3159 | case 0x0006: /* TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 */
3160 | case 0x0008: /* TLS_RSA_EXPORT_WITH_DES40_CBC_SHA */
3161 | case 0x000B: /* TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA */
3162 | case 0x000E: /* TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA */
3163 | case 0x0011: /* TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA */
3164 | case 0x0014: /* TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA */
3165 | case 0x0017: /* TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 */
3166 | case 0x0019: /* TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA */
3167 | return 5;
3168 |
3169 | /* not defined in below draft, but "implemented by several vendors",
3170 | * https://www.ietf.org/mail-archive/web/tls/current/msg00036.html */
3171 | case 0x0060: /* TLS_RSA_EXPORT1024_WITH_RC4_56_MD5 */
3172 | case 0x0061: /* TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5 */
3173 | return 7;
3174 |
3175 | /* Note: the draft states that DES_CBC needs 8 bytes, but Wireshark always
3176 | * used 7. Until a pcap proves 8, let's use the old value. Link:
3177 | * https://tools.ietf.org/html/draft-ietf-tls-56-bit-ciphersuites-01 */
3178 | case 0x0062: /* TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA */
3179 | case 0x0063: /* TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA */
3180 | case 0x0064: /* TLS_RSA_EXPORT1024_WITH_RC4_56_SHA */
3181 | case 0x0065: /* TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA */
3182 | return 7;
3183 |
3184 | default:
3185 | return 0;
3186 | }
3187 | }
3188 |
3189 | /* Digests, Ciphers and Cipher Suites registry }}} */
3190 |
3191 |
3192 | /* HMAC and the Pseudorandom function {{{ */
3193 | static int
3194 | tls_hash(StringInfo *secret, StringInfo *seed, int md,
3195 | StringInfo *out, unsigned out_len)
3196 | {
3197 | /* RFC 2246 5. HMAC and the pseudorandom function
3198 | * '+' denotes concatenation.
3199 | * P_hash(secret, seed) = HMAC_hash(secret, A(1) + seed) +
3200 | * HMAC_hash(secret, A(2) + seed) + ...
3201 | * A(0) = seed
3202 | * A(i) = HMAC_hash(secret, A(i - 1))
3203 | */
3204 | uint8_t *ptr;
3205 | unsigned left, tocpy;
3206 | uint8_t *A;
3207 | uint8_t _A[DIGEST_MAX_SIZE48], tmp[DIGEST_MAX_SIZE48];
3208 | unsigned A_l, tmp_l;
3209 | SSL_HMACgcry_md_hd_t hm;
3210 |
3211 | ptr = out->data;
3212 | left = out_len;
3213 |
3214 | ssl_print_string("tls_hash: hash secret", secret);
3215 | ssl_print_string("tls_hash: hash seed", seed);
3216 | /* A(0) = seed */
3217 | A = seed->data;
3218 | A_l = seed->data_len;
3219 |
3220 | if (ssl_hmac_init(&hm, md) != 0) {
3221 | return -1;
3222 | }
3223 | while (left) {
3224 | /* A(i) = HMAC_hash(secret, A(i-1)) */
3225 | ssl_hmac_setkey(&hm, secret->data, secret->data_len);
3226 | ssl_hmac_update(&hm, A, A_l);
3227 | A_l = sizeof(_A); /* upper bound len for hash output */
3228 | ssl_hmac_final(&hm, _A, &A_l);
3229 | A = _A;
3230 |
3231 | /* HMAC_hash(secret, A(i) + seed) */
3232 | ssl_hmac_reset(&hm);
3233 | ssl_hmac_setkey(&hm, secret->data, secret->data_len);
3234 | ssl_hmac_update(&hm, A, A_l);
3235 | ssl_hmac_update(&hm, seed->data, seed->data_len);
3236 | tmp_l = sizeof(tmp); /* upper bound len for hash output */
3237 | ssl_hmac_final(&hm, tmp, &tmp_l);
3238 | ssl_hmac_reset(&hm);
3239 |
3240 | /* ssl_hmac_final puts the actual digest output size in tmp_l */
3241 | tocpy = MIN(left, tmp_l)(((left) < (tmp_l)) ? (left) : (tmp_l));
3242 | memcpy(ptr, tmp, tocpy);
3243 | ptr += tocpy;
3244 | left -= tocpy;
3245 | }
3246 | ssl_hmac_cleanup(&hm);
3247 | out->data_len = out_len;
3248 |
3249 | ssl_print_string("hash out", out);
3250 | return 0;
3251 | }
3252 |
3253 | static bool_Bool
3254 | tls_prf(StringInfo* secret, const char *usage,
3255 | StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, unsigned out_len)
3256 | {
3257 | StringInfo seed, sha_out, md5_out;
3258 | uint8_t *ptr;
3259 | StringInfo s1, s2;
3260 | unsigned i,s_l;
3261 | size_t usage_len, rnd2_len;
3262 | bool_Bool success = false0;
3263 | usage_len = strlen(usage);
3264 | rnd2_len = rnd2 ? rnd2->data_len : 0;
3265 |
3266 | /* initialize buffer for sha, md5 random seed*/
3267 | if (ssl_data_alloc(&sha_out, MAX(out_len, 20)(((out_len) > (20)) ? (out_len) : (20))) < 0) {
3268 | ssl_debug_printf("tls_prf: can't allocate sha out\n");
3269 | return false0;
3270 | }
3271 | if (ssl_data_alloc(&md5_out, MAX(out_len, 16)(((out_len) > (16)) ? (out_len) : (16))) < 0) {
3272 | ssl_debug_printf("tls_prf: can't allocate md5 out\n");
3273 | goto free_sha;
3274 | }
3275 | if (ssl_data_alloc(&seed, usage_len+rnd1->data_len+rnd2_len) < 0) {
3276 | ssl_debug_printf("tls_prf: can't allocate rnd %d\n",
3277 | (int) (usage_len+rnd1->data_len+rnd2_len));
3278 | goto free_md5;
3279 | }
3280 |
3281 | ptr=seed.data;
3282 | memcpy(ptr,usage,usage_len);
3283 | ptr+=usage_len;
3284 | memcpy(ptr,rnd1->data,rnd1->data_len);
3285 | if (rnd2_len > 0) {
3286 | ptr+=rnd1->data_len;
3287 | memcpy(ptr,rnd2->data,rnd2->data_len);
3288 | /*ptr+=rnd2->data_len;*/
3289 | }
3290 |
3291 | /* initialize buffer for client/server seeds*/
3292 | s_l=secret->data_len/2 + secret->data_len%2;
3293 | if (ssl_data_alloc(&s1, s_l) < 0) {
3294 | ssl_debug_printf("tls_prf: can't allocate secret %d\n", s_l);
3295 | goto free_seed;
3296 | }
3297 | if (ssl_data_alloc(&s2, s_l) < 0) {
3298 | ssl_debug_printf("tls_prf: can't allocate secret(2) %d\n", s_l);
3299 | goto free_s1;
3300 | }
3301 |
3302 | memcpy(s1.data,secret->data,s_l);
3303 | memcpy(s2.data,secret->data + (secret->data_len - s_l),s_l);
3304 |
3305 | ssl_debug_printf("tls_prf: tls_hash(md5 secret_len %d seed_len %d )\n", s1.data_len, seed.data_len);
3306 | if(tls_hash(&s1, &seed, ssl_get_digest_by_name("MD5"), &md5_out, out_len) != 0)
3307 | goto free_s2;
3308 | ssl_debug_printf("tls_prf: tls_hash(sha)\n");
3309 | if(tls_hash(&s2, &seed, ssl_get_digest_by_name("SHA1"), &sha_out, out_len) != 0)
3310 | goto free_s2;
3311 |
3312 | for (i = 0; i < out_len; i++)
3313 | out->data[i] = md5_out.data[i] ^ sha_out.data[i];
3314 | /* success, now store the new meaningful data length */
3315 | out->data_len = out_len;
3316 | success = true1;
3317 |
3318 | ssl_print_string("PRF out",out);
3319 | free_s2:
3320 | g_free(s2.data)(__builtin_object_size ((s2.data), 0) != ((size_t) - 1)) ? g_free_sized (s2.data, __builtin_object_size ((s2.data), 0)) : (g_free) ( s2.data);
3321 | free_s1:
3322 | g_free(s1.data)(__builtin_object_size ((s1.data), 0) != ((size_t) - 1)) ? g_free_sized (s1.data, __builtin_object_size ((s1.data), 0)) : (g_free) ( s1.data);
3323 | free_seed:
3324 | g_free(seed.data)(__builtin_object_size ((seed.data), 0) != ((size_t) - 1)) ? g_free_sized (seed.data, __builtin_object_size ((seed.data), 0)) : (g_free ) (seed.data);
3325 | free_md5:
3326 | g_free(md5_out.data)(__builtin_object_size ((md5_out.data), 0) != ((size_t) - 1)) ? g_free_sized (md5_out.data, __builtin_object_size ((md5_out .data), 0)) : (g_free) (md5_out.data);
3327 | free_sha:
3328 | g_free(sha_out.data)(__builtin_object_size ((sha_out.data), 0) != ((size_t) - 1)) ? g_free_sized (sha_out.data, __builtin_object_size ((sha_out .data), 0)) : (g_free) (sha_out.data);
3329 | return success;
3330 | }
3331 |
3332 | static bool_Bool
3333 | tls12_prf(int md, StringInfo* secret, const char* usage,
3334 | StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, unsigned out_len)
3335 | {
3336 | StringInfo label_seed;
3337 | int success;
3338 | size_t usage_len, rnd2_len;
3339 | rnd2_len = rnd2 ? rnd2->data_len : 0;
3340 |
3341 | usage_len = strlen(usage);
3342 | if (ssl_data_alloc(&label_seed, usage_len+rnd1->data_len+rnd2_len) < 0) {
3343 | ssl_debug_printf("tls12_prf: can't allocate label_seed\n");
3344 | return false0;
3345 | }
3346 | memcpy(label_seed.data, usage, usage_len);
3347 | memcpy(label_seed.data+usage_len, rnd1->data, rnd1->data_len);
3348 | if (rnd2_len > 0)
3349 | memcpy(label_seed.data+usage_len+rnd1->data_len, rnd2->data, rnd2->data_len);
3350 |
3351 | ssl_debug_printf("tls12_prf: tls_hash(hash_alg %s secret_len %d seed_len %d )\n", gcry_md_algo_name(md), secret->data_len, label_seed.data_len);
3352 | success = tls_hash(secret, &label_seed, md, out, out_len);
3353 | g_free(label_seed.data)(__builtin_object_size ((label_seed.data), 0) != ((size_t) - 1 )) ? g_free_sized (label_seed.data, __builtin_object_size ((label_seed .data), 0)) : (g_free) (label_seed.data);
3354 | if(success != -1){
3355 | ssl_print_string("PRF out", out);
3356 | return true1;
3357 | }
3358 | return false0;
3359 | }
3360 |
3361 | static bool_Bool
3362 | ssl3_generate_export_iv(StringInfo *r1, StringInfo *r2,
3363 | StringInfo *out, unsigned out_len)
3364 | {
3365 | SSL_MD5_CTXgcry_md_hd_t md5;
3366 | uint8_t tmp[16];
3367 |
3368 | if (ssl_md5_init(&md5) != 0) {
3369 | return false0;
3370 | }
3371 | ssl_md5_update(&md5,r1->data,r1->data_len);
3372 | ssl_md5_update(&md5,r2->data,r2->data_len);
3373 | ssl_md5_final(tmp,&md5);
3374 | ssl_md5_cleanup(&md5);
3375 |
3376 | DISSECTOR_ASSERT(out_len <= sizeof(tmp))((void) ((out_len <= sizeof(tmp)) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 3376, "out_len <= sizeof(tmp)"))));
3377 | ssl_data_set(out, tmp, out_len);
3378 | ssl_print_string("export iv", out);
3379 | return true1;
3380 | }
3381 |
3382 | static bool_Bool
3383 | ssl3_prf(StringInfo* secret, const char* usage,
3384 | StringInfo* rnd1, StringInfo* rnd2, StringInfo* out, unsigned out_len)
3385 | {
3386 | SSL_MD5_CTXgcry_md_hd_t md5;
3387 | SSL_SHA_CTXgcry_md_hd_t sha;
3388 | unsigned off;
3389 | int i = 0,j;
3390 | uint8_t buf[20];
3391 |
3392 | if (ssl_sha_init(&sha) != 0) {
3393 | return false0;
3394 | }
3395 | if (ssl_md5_init(&md5) != 0) {
3396 | ssl_sha_cleanup(&sha);
3397 | return false0;
3398 | }
3399 | for (off = 0; off < out_len; off += 16) {
3400 | unsigned char outbuf[16];
3401 | i++;
3402 |
3403 | ssl_debug_printf("ssl3_prf: sha1_hash(%d)\n",i);
3404 | /* A, BB, CCC, ... */
3405 | for(j=0;j<i;j++){
3406 | buf[j]=64+i;
3407 | }
3408 |
3409 | ssl_sha_update(&sha,buf,i);
3410 | ssl_sha_update(&sha,secret->data,secret->data_len);
3411 |
3412 | if(!strcmp(usage,"client write key") || !strcmp(usage,"server write key")){
3413 | if (rnd2)
3414 | ssl_sha_update(&sha,rnd2->data,rnd2->data_len);
3415 | ssl_sha_update(&sha,rnd1->data,rnd1->data_len);
3416 | }
3417 | else{
3418 | ssl_sha_update(&sha,rnd1->data,rnd1->data_len);
3419 | if (rnd2)
3420 | ssl_sha_update(&sha,rnd2->data,rnd2->data_len);
3421 | }
3422 |
3423 | ssl_sha_final(buf,&sha);
3424 | ssl_sha_reset(&sha);
3425 |
3426 | ssl_debug_printf("ssl3_prf: md5_hash(%d) datalen %d\n",i,
3427 | secret->data_len);
3428 | ssl_md5_update(&md5,secret->data,secret->data_len);
3429 | ssl_md5_update(&md5,buf,20);
3430 | ssl_md5_final(outbuf,&md5);
3431 | ssl_md5_reset(&md5);
3432 |
3433 | memcpy(out->data + off, outbuf, MIN(out_len - off, 16)(((out_len - off) < (16)) ? (out_len - off) : (16)));
3434 | }
3435 | ssl_sha_cleanup(&sha);
3436 | ssl_md5_cleanup(&md5);
3437 | out->data_len = out_len;
3438 |
3439 | return true1;
3440 | }
3441 |
3442 | /* out_len is the wanted output length for the pseudorandom function.
3443 | * Ensure that ssl->cipher_suite is set. */
3444 | static bool_Bool
3445 | prf(SslDecryptSession *ssl, StringInfo *secret, const char *usage,
3446 | StringInfo *rnd1, StringInfo *rnd2, StringInfo *out, unsigned out_len)
3447 | {
3448 | switch (ssl->session.version) {
3449 | case SSLV3_VERSION0x300:
3450 | return ssl3_prf(secret, usage, rnd1, rnd2, out, out_len);
3451 |
3452 | case TLSV1_VERSION0x301:
3453 | case TLSV1DOT1_VERSION0x302:
3454 | case DTLSV1DOT0_VERSION0xfeff:
3455 | case DTLSV1DOT0_OPENSSL_VERSION0x100:
3456 | return tls_prf(secret, usage, rnd1, rnd2, out, out_len);
3457 |
3458 | default: /* TLSv1.2 */
3459 | switch (ssl->cipher_suite->dig) {
3460 | case DIG_SM30x44:
3461 | #if GCRYPT_VERSION_NUMBER0x010c00 >= 0x010900
3462 | return tls12_prf(GCRY_MD_SM3, secret, usage, rnd1, rnd2,
3463 | out, out_len);
3464 | #else
3465 | return false0;
3466 | #endif
3467 | case DIG_SHA3840x43:
3468 | return tls12_prf(GCRY_MD_SHA384, secret, usage, rnd1, rnd2,
3469 | out, out_len);
3470 | default:
3471 | return tls12_prf(GCRY_MD_SHA256, secret, usage, rnd1, rnd2,
3472 | out, out_len);
3473 | }
3474 | }
3475 | }
3476 |
3477 | static int tls_handshake_hash(SslDecryptSession* ssl, StringInfo* out)
3478 | {
3479 | SSL_MD5_CTXgcry_md_hd_t md5;
3480 | SSL_SHA_CTXgcry_md_hd_t sha;
3481 |
3482 | if (ssl_data_alloc(out, 36) < 0)
15 | ← | Calling 'ssl_data_alloc' | →
19 | ← | Returned allocated memory | →
20 | ← | Taking false branch | →
3483 | return -1;
3484 |
3485 | if (ssl_md5_init(&md5) != 0)
21 | ← | Taking true branch | →
3486 | return -1;
3487 | ssl_md5_update(&md5,ssl->handshake_data.data,ssl->handshake_data.data_len);
3488 | ssl_md5_final(out->data,&md5);
3489 | ssl_md5_cleanup(&md5);
3490 |
3491 | if (ssl_sha_init(&sha) != 0)
3492 | return -1;
3493 | ssl_sha_update(&sha,ssl->handshake_data.data,ssl->handshake_data.data_len);
3494 | ssl_sha_final(out->data+16,&sha);
3495 | ssl_sha_cleanup(&sha);
3496 | return 0;
3497 | }
3498 |
3499 | static int tls12_handshake_hash(SslDecryptSession* ssl, int md, StringInfo* out)
3500 | {
3501 | SSL_MDgcry_md_hd_t mc;
3502 | uint8_t tmp[48];
3503 | unsigned len;
3504 |
3505 | if (ssl_md_init(&mc, md) != 0)
3506 | return -1;
3507 | ssl_md_update(&mc,ssl->handshake_data.data,ssl->handshake_data.data_len);
3508 | ssl_md_final(&mc, tmp, &len);
3509 | ssl_md_cleanup(&mc);
3510 |
3511 | if (ssl_data_alloc(out, len) < 0)
3512 | return -1;
3513 | memcpy(out->data, tmp, len);
3514 | return 0;
3515 | }
3516 |
3517 | bool_Bool
3518 | tls_load_psk(SslDecryptSession* tls_session, const char *tls_psk)
3519 | {
3520 | if (!tls_psk || (tls_psk[0] == 0)) {
3521 | ssl_debug_printf("%s: can't find pre-shared key\n", G_STRFUNC((const char*) (__func__)));
3522 | return false0;
3523 | }
3524 |
3525 | wmem_free(wmem_file_scope(), tls_session->psk.data);
3526 | /* convert hex string into char*/
3527 | if (!from_hex(&tls_session->psk, tls_psk, strlen(tls_psk))) {
3528 | ssl_debug_printf("%s: ssl.psk/dtls.psk contains invalid hex\n",
3529 | G_STRFUNC((const char*) (__func__)));
3530 | return false0;
3531 | }
3532 |
3533 | if (tls_session->psk.data_len >= (2 << 15)) {
3534 | ssl_debug_printf("%s: ssl.psk/dtls.psk must not be larger than 2^15 - 1\n",
3535 | G_STRFUNC((const char*) (__func__)));
3536 | wmem_free(wmem_file_scope(), tls_session->psk.data);
3537 | tls_session->psk.data = NULL((void*)0);
3538 | tls_session->psk.data_len = 0;
3539 | return false0;
3540 | }
3541 |
3542 | return true1;
3543 | }
3544 |
3545 | /**
3546 | * Obtains the label prefix used in HKDF-Expand-Label. This function can be
3547 | * inlined and removed once support for draft 19 and before is dropped.
3548 | */
3549 | static inline const char *
3550 | tls13_hkdf_label_prefix(SslDecryptSession *ssl_session)
3551 | {
3552 | if (ssl_session->session.tls13_draft_version && ssl_session->session.tls13_draft_version < 20) {
3553 | return "TLS 1.3, ";
3554 | } else if (ssl_session->session.version == DTLSV1DOT3_VERSION0xfefc) {
3555 | return "dtls13";
3556 | } else {
3557 | return "tls13 ";
3558 | }
3559 | }
3560 |
3561 | /*
3562 | * Computes HKDF-Expand-Label(Secret, Label, Hash(context_value), Length) with a
3563 | * custom label prefix. If "context_hash" is NULL, then an empty context is
3564 | * used. Otherwise it must have the same length as the hash algorithm output.
3565 | */
3566 | bool_Bool
3567 | tls13_hkdf_expand_label_context(int md, const StringInfo *secret,
3568 | const char *label_prefix, const char *label,
3569 | const uint8_t *context_hash, uint8_t context_length,
3570 | uint16_t out_len, unsigned char **out)
3571 | {
3572 | /* RFC 8446 Section 7.1:
3573 | * HKDF-Expand-Label(Secret, Label, Context, Length) =
3574 | * HKDF-Expand(Secret, HkdfLabel, Length)
3575 | * struct {
3576 | * uint16 length = Length;
3577 | * opaque label<7..255> = "tls13 " + Label; // "tls13 " is label prefix.
3578 | * opaque context<0..255> = Context;
3579 | * } HkdfLabel;
3580 | *
3581 | * RFC 5869 HMAC-based Extract-and-Expand Key Derivation Function (HKDF):
3582 | * HKDF-Expand(PRK, info, L) -> OKM
3583 | */
3584 | gcry_error_t err;
3585 | const unsigned label_prefix_length = (unsigned) strlen(label_prefix);
3586 | const unsigned label_length = (unsigned) strlen(label);
3587 |
3588 | /* Some sanity checks */
3589 | DISSECTOR_ASSERT(label_length > 0 && label_prefix_length + label_length <= 255)((void) ((label_length > 0 && label_prefix_length + label_length <= 255) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 3589, "label_length > 0 && label_prefix_length + label_length <= 255" ))));
3590 |
3591 | /* info = HkdfLabel { length, label, context } */
3592 | GByteArray *info = g_byte_array_new();
3593 | const uint16_t length = g_htons(out_len)(((((guint16) ( (guint16) ((guint16) (out_len) >> 8) | ( guint16) ((guint16) (out_len) << 8))))));
3594 | g_byte_array_append(info, (const uint8_t *)&length, sizeof(length));
3595 |
3596 | const uint8_t label_vector_length = label_prefix_length + label_length;
3597 | g_byte_array_append(info, &label_vector_length, 1);
3598 | g_byte_array_append(info, (const uint8_t *)label_prefix, label_prefix_length);
3599 | g_byte_array_append(info, (const uint8_t*)label, label_length);
3600 |
3601 | g_byte_array_append(info, &context_length, 1);
3602 | if (context_length) {
3603 | g_byte_array_append(info, context_hash, context_length);
3604 | }
3605 |
3606 | *out = (unsigned char *)wmem_alloc(NULL((void*)0), out_len);
3607 | err = hkdf_expand(md, secret->data, secret->data_len, info->data, info->len, *out, out_len);
3608 | g_byte_array_free(info, true1);
3609 |
3610 | if (err) {
3611 | ssl_debug_printf("%s failed %d: %s\n", G_STRFUNC((const char*) (__func__)), md, gcry_strerror(err));
3612 | wmem_free(NULL((void*)0), *out);
3613 | *out = NULL((void*)0);
3614 | return false0;
3615 | }
3616 |
3617 | return true1;
3618 | }
3619 |
3620 | bool_Bool
3621 | tls13_hkdf_expand_label(int md, const StringInfo *secret,
3622 | const char *label_prefix, const char *label,
3623 | uint16_t out_len, unsigned char **out)
3624 | {
3625 | return tls13_hkdf_expand_label_context(md, secret, label_prefix, label, NULL((void*)0), 0, out_len, out);
3626 | }
3627 |
3628 | static bool_Bool
3629 | tls13_derive_secret(int md, const StringInfo *secret,
3630 | const char *label_prefix, const char *label,
3631 | const uint8_t *context, unsigned context_length,
3632 | uint16_t out_len, unsigned char **out)
3633 | {
3634 | SSL_MDgcry_md_hd_t mc;
3635 | uint8_t context_hash[DIGEST_MAX_SIZE48];
3636 | unsigned hash_len;
3637 |
3638 | if (ssl_md_init(&mc, md) != 0)
3639 | return false0;
3640 | ssl_md_update(&mc, context, context_length);
3641 | ssl_md_final(&mc, context_hash, &hash_len);
3642 | ssl_md_cleanup(&mc);
3643 |
3644 | return tls13_hkdf_expand_label_context(md, secret, label_prefix, label, context_hash, hash_len, out_len, out);
3645 | }
3646 |
3647 | /* HMAC and the Pseudorandom function }}} */
3648 |
3649 | /* Record Decompression (after decryption) {{{ */
3650 | #ifdef USE_ZLIB_OR_ZLIBNG
3651 | /* memory allocation functions for zlib initialization */
3652 | static void* ssl_zalloc(void* opaque _U___attribute__((unused)), unsigned int no, unsigned int size)
3653 | {
3654 | return g_malloc0(no*size);
3655 | }
3656 | static void ssl_zfree(void* opaque _U___attribute__((unused)), void* addr)
3657 | {
3658 | g_free(addr)(__builtin_object_size ((addr), 0) != ((size_t) - 1)) ? g_free_sized (addr, __builtin_object_size ((addr), 0)) : (g_free) (addr);
3659 | }
3660 | #endif /* USE_ZLIB_OR_ZLIBNG */
3661 |
3662 | static SslDecompress*
3663 | ssl_create_decompressor(int compression)
3664 | {
3665 | SslDecompress *decomp;
3666 | #ifdef USE_ZLIB_OR_ZLIBNG
3667 | int err;
3668 | #endif
3669 |
3670 | if (compression == 0) return NULL((void*)0);
3671 | ssl_debug_printf("ssl_create_decompressor: compression method %d\n", compression);
3672 | decomp = wmem_new(wmem_file_scope(), SslDecompress)((SslDecompress*)wmem_alloc((wmem_file_scope()), sizeof(SslDecompress )));
3673 | decomp->compression = compression;
3674 | switch (decomp->compression) {
3675 | #ifdef USE_ZLIB_OR_ZLIBNG
3676 | case 1: /* DEFLATE */
3677 | decomp->istream.zalloc = ssl_zalloc;
3678 | decomp->istream.zfree = ssl_zfree;
3679 | decomp->istream.opaque = Z_NULL0;
3680 | decomp->istream.next_in = Z_NULL0;
3681 | decomp->istream.next_out = Z_NULL0;
3682 | decomp->istream.avail_in = 0;
3683 | decomp->istream.avail_out = 0;
3684 | err = ZLIB_PREFIX(inflateInit)(&decomp->istream)inflateInit_((&decomp->istream), "1.3.1", (int)sizeof( z_stream));
3685 | if (err != Z_OK0) {
3686 | ssl_debug_printf("ssl_create_decompressor: inflateInit_() failed - %d\n", err);
3687 | return NULL((void*)0);
3688 | }
3689 | break;
3690 | #endif /* USE_ZLIB_OR_ZLIBNG */
3691 | default:
3692 | ssl_debug_printf("ssl_create_decompressor: unsupported compression method %d\n", decomp->compression);
3693 | return NULL((void*)0);
3694 | }
3695 | return decomp;
3696 | }
3697 |
3698 | #ifdef USE_ZLIB_OR_ZLIBNG
3699 | static int
3700 | ssl_decompress_record(SslDecompress* decomp, const unsigned char* in, unsigned inl, StringInfo* out_str, unsigned* outl)
3701 | {
3702 | int err;
3703 |
3704 | switch (decomp->compression) {
3705 | case 1: /* DEFLATE */
3706 | err = Z_OK0;
3707 | if (out_str->data_len < 16384) { /* maximal plain length */
3708 | ssl_data_realloc(out_str, 16384);
3709 | }
3710 | #ifdef z_constconst
3711 | decomp->istream.next_in = in;
3712 | #else
3713 | DIAG_OFF(cast-qual)clang diagnostic push clang diagnostic ignored "-Wcast-qual"
3714 | decomp->istream.next_in = (Bytef *)in;
3715 | DIAG_ON(cast-qual)clang diagnostic pop
3716 | #endif
3717 | decomp->istream.avail_in = inl;
3718 | decomp->istream.next_out = out_str->data;
3719 | decomp->istream.avail_out = out_str->data_len;
3720 | if (inl > 0)
3721 | err = ZLIB_PREFIX(inflate)inflate(&decomp->istream, Z_SYNC_FLUSH2);
3722 | if (err != Z_OK0) {
3723 | ssl_debug_printf("ssl_decompress_record: inflate() failed - %d\n", err);
3724 | return -1;
3725 | }
3726 | *outl = out_str->data_len - decomp->istream.avail_out;
3727 | break;
3728 | default:
3729 | ssl_debug_printf("ssl_decompress_record: unsupported compression method %d\n", decomp->compression);
3730 | return -1;
3731 | }
3732 | return 0;
3733 | }
3734 | #else /* USE_ZLIB_OR_ZLIBNG */
3735 | int
3736 | ssl_decompress_record(SslDecompress* decomp _U___attribute__((unused)), const unsigned char* in _U___attribute__((unused)), unsigned inl _U___attribute__((unused)), StringInfo* out_str _U___attribute__((unused)), unsigned* outl _U___attribute__((unused)))
3737 | {
3738 | ssl_debug_printf("ssl_decompress_record: unsupported compression method %d\n", decomp->compression);
3739 | return -1;
3740 | }
3741 | #endif /* USE_ZLIB_OR_ZLIBNG */
3742 | /* Record Decompression (after decryption) }}} */
3743 |
3744 | /* Create a new structure to store decrypted chunks. {{{ */
3745 | static SslFlow*
3746 | ssl_create_flow(void)
3747 | {
3748 | SslFlow *flow;
3749 |
3750 | flow = wmem_new(wmem_file_scope(), SslFlow)((SslFlow*)wmem_alloc((wmem_file_scope()), sizeof(SslFlow)));
3751 | flow->byte_seq = 0;
3752 | flow->flags = 0;
3753 | flow->multisegment_pdus = wmem_tree_new(wmem_file_scope());
3754 | return flow;
3755 | }
3756 | /* }}} */
3757 |
3758 | /* Use the negotiated security parameters for decryption. {{{ */
3759 | void
3760 | ssl_change_cipher(SslDecryptSession *ssl_session, bool_Bool server)
3761 | {
3762 | SslDecoder **new_decoder = server ? &ssl_session->server_new : &ssl_session->client_new;
3763 | SslDecoder **dest = server ? &ssl_session->server : &ssl_session->client;
3764 | ssl_debug_printf("ssl_change_cipher %s%s\n", server ? "SERVER" : "CLIENT",
3765 | *new_decoder ? "" : " (No decoder found - retransmission?)");
3766 | if (*new_decoder) {
3767 | *dest = *new_decoder;
3768 | *new_decoder = NULL((void*)0);
3769 | }
3770 | }
3771 | /* }}} */
3772 |
3773 | /* Init cipher state given some security parameters. {{{ */
3774 | static bool_Bool
3775 | ssl_decoder_destroy_cb(wmem_allocator_t *, wmem_cb_event_t, void *);
3776 |
3777 | static SslDecoder*
3778 | ssl_create_decoder(const SslCipherSuite *cipher_suite, int cipher_algo,
3779 | int compression, uint8_t *mk, uint8_t *sk, uint8_t *sn_key, uint8_t *iv, unsigned iv_length)
3780 | {
3781 | SslDecoder *dec;
3782 | ssl_cipher_mode_t mode = cipher_suite->mode;
3783 |
3784 | dec = wmem_new0(wmem_file_scope(), SslDecoder)((SslDecoder*)wmem_alloc0((wmem_file_scope()), sizeof(SslDecoder )));
3785 | /* init mac buffer: mac storage is embedded into decoder struct to save a
3786 | memory allocation and waste samo more memory*/
3787 | dec->cipher_suite=cipher_suite;
3788 | dec->compression = compression;
3789 | if ((mode == MODE_STREAM && mk != NULL((void*)0)) || mode == MODE_CBC) {
3790 | // AEAD ciphers use no MAC key, but stream and block ciphers do. Note
3791 | // the special case for NULL ciphers, even if there is insufficiency
3792 | // keying material (including MAC key), we will can still create
3793 | // decoders since "decryption" is easy for such ciphers.
3794 | dec->mac_key.data = dec->_mac_key_or_write_iv;
3795 | ssl_data_set(&dec->mac_key, mk, ssl_cipher_suite_dig(cipher_suite)->len);
3796 | } else if (mode == MODE_GCM || mode == MODE_CCM || mode == MODE_CCM_8 || mode == MODE_POLY1305) {
3797 | // Input for the nonce, to be used with AEAD ciphers.
3798 | DISSECTOR_ASSERT(iv_length <= sizeof(dec->_mac_key_or_write_iv))((void) ((iv_length <= sizeof(dec->_mac_key_or_write_iv )) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 3798, "iv_length <= sizeof(dec->_mac_key_or_write_iv)" ))));
3799 | dec->write_iv.data = dec->_mac_key_or_write_iv;
3800 | ssl_data_set(&dec->write_iv, iv, iv_length);
3801 | }
3802 | dec->seq = 0;
3803 | dec->decomp = ssl_create_decompressor(compression);
3804 | wmem_register_callback(wmem_file_scope(), ssl_decoder_destroy_cb, dec);
3805 |
3806 | if (ssl_cipher_init(&dec->evp,cipher_algo,sk,iv,cipher_suite->mode) < 0) {
3807 | ssl_debug_printf("%s: can't create cipher id:%d mode:%d\n", G_STRFUNC((const char*) (__func__)),
3808 | cipher_algo, cipher_suite->mode);
3809 | return NULL((void*)0);
3810 | }
3811 |
3812 | if (cipher_suite->enc != ENC_NULL0x3D && sn_key != NULL((void*)0)) {
3813 | if (cipher_suite->enc == ENC_AES0x35 || cipher_suite->enc == ENC_AES2560x36) {
3814 | mode = MODE_ECB;
3815 | } else if (cipher_suite->enc == ENC_CHACHA200x3A) {
3816 | mode = MODE_STREAM;
3817 | } else {
3818 | ssl_debug_printf("not supported encryption algorithm for DTLSv1.3\n");
3819 | return NULL((void*)0);
3820 | }
3821 |
3822 | if (ssl_cipher_init(&dec->sn_evp, cipher_algo, sn_key, NULL((void*)0), mode) < 0) {
3823 | ssl_debug_printf("%s: can't create cipher id:%d mode:%d for seq number decryption\n", G_STRFUNC((const char*) (__func__)),
3824 | cipher_algo, MODE_ECB);
3825 | ssl_cipher_cleanup(&dec->evp);
3826 | dec->evp = NULL((void*)0);
3827 | return NULL((void*)0);
3828 | }
3829 | } else {
3830 | dec->sn_evp = NULL((void*)0);
3831 | }
3832 |
3833 | dec->dtls13_aad.data = NULL((void*)0);
3834 | dec->dtls13_aad.data_len = 0;
3835 | ssl_debug_printf("decoder initialized (digest len %d)\n", ssl_cipher_suite_dig(cipher_suite)->len);
3836 | return dec;
3837 | }
3838 |
3839 | static bool_Bool
3840 | ssl_decoder_destroy_cb(wmem_allocator_t *allocator _U___attribute__((unused)), wmem_cb_event_t event _U___attribute__((unused)), void *user_data)
3841 | {
3842 | SslDecoder *dec = (SslDecoder *) user_data;
3843 |
3844 | if (dec->evp)
3845 | ssl_cipher_cleanup(&dec->evp);
3846 | if (dec->sn_evp)
3847 | ssl_cipher_cleanup(&dec->sn_evp);
3848 |
3849 | #ifdef USE_ZLIB_OR_ZLIBNG
3850 | if (dec->decomp != NULL((void*)0) && dec->decomp->compression == 1 /* DEFLATE */)
3851 | ZLIB_PREFIX(inflateEnd)inflateEnd(&dec->decomp->istream);
3852 | #endif
3853 |
3854 | return false0;
3855 | }
3856 | /* }}} */
3857 |
3858 | /* (Pre-)master secrets calculations {{{ */
3859 | #ifdef HAVE_LIBGNUTLS1
3860 | static bool_Bool
3861 | ssl_decrypt_pre_master_secret(SslDecryptSession *ssl_session,
3862 | StringInfo *encrypted_pre_master,
3863 | GHashTable *key_hash);
3864 | #endif /* HAVE_LIBGNUTLS */
3865 |
3866 | static bool_Bool
3867 | ssl_restore_master_key(SslDecryptSession *ssl, const char *label,
3868 | bool_Bool is_pre_master, GHashTable *ht, StringInfo *key);
3869 |
3870 | bool_Bool
3871 | ssl_generate_pre_master_secret(SslDecryptSession *ssl_session,
3872 | uint32_t length, tvbuff_t *tvb, uint32_t offset,
3873 | const char *ssl_psk, packet_info *pinfo,
3874 | #ifdef HAVE_LIBGNUTLS1
3875 | GHashTable *key_hash,
3876 | #endif
3877 | const ssl_master_key_map_t *mk_map)
3878 | {
3879 | /* check for required session data */
3880 | ssl_debug_printf("%s: found SSL_HND_CLIENT_KEY_EXCHG, state %X\n",
3881 | G_STRFUNC((const char*) (__func__)), ssl_session->state);
3882 | if ((ssl_session->state & (SSL_CIPHER(1<<2)|SSL_CLIENT_RANDOM(1<<0)|SSL_SERVER_RANDOM(1<<1)|SSL_VERSION(1<<4))) !=
3883 | (SSL_CIPHER(1<<2)|SSL_CLIENT_RANDOM(1<<0)|SSL_SERVER_RANDOM(1<<1)|SSL_VERSION(1<<4))) {
3884 | ssl_debug_printf("%s: not enough data to generate key (required state %X)\n", G_STRFUNC((const char*) (__func__)),
3885 | (SSL_CIPHER(1<<2)|SSL_CLIENT_RANDOM(1<<0)|SSL_SERVER_RANDOM(1<<1)|SSL_VERSION(1<<4)));
3886 | return false0;
3887 | }
3888 |
3889 | if (ssl_session->session.version == TLSV1DOT3_VERSION0x304) {
3890 | ssl_debug_printf("%s: detected TLS 1.3 which has no pre-master secrets\n", G_STRFUNC((const char*) (__func__)));
3891 | return false0;
3892 | }
3893 |
3894 | /* check to see if the PMS was provided to us*/
3895 | if (ssl_restore_master_key(ssl_session, "Unencrypted pre-master secret", true1,
3896 | mk_map->pms, &ssl_session->client_random)) {
3897 | return true1;
3898 | }
3899 |
3900 | if (ssl_session->cipher_suite->kex == KEX_PSK0x1d)
3901 | {
3902 | /* calculate pre master secret*/
3903 | StringInfo pre_master_secret;
3904 | unsigned psk_len, pre_master_len;
3905 |
3906 | if (!tls_load_psk(ssl_session, ssl_psk)) {
3907 | return false0;
3908 | }
3909 | psk_len = ssl_session->psk.data_len;
3910 |
3911 | pre_master_len = psk_len * 2 + 4;
3912 |
3913 | pre_master_secret.data = (unsigned char *)wmem_alloc(wmem_file_scope(), pre_master_len);
3914 | pre_master_secret.data_len = pre_master_len;
3915 | /* 2 bytes psk_len*/
3916 | pre_master_secret.data[0] = psk_len >> 8;
3917 | pre_master_secret.data[1] = psk_len & 0xFF;
3918 | /* psk_len bytes times 0*/
3919 | memset(&pre_master_secret.data[2], 0, psk_len);
3920 | /* 2 bytes psk_len*/
3921 | pre_master_secret.data[psk_len + 2] = psk_len >> 8;
3922 | pre_master_secret.data[psk_len + 3] = psk_len & 0xFF;
3923 | /* psk*/
3924 | memcpy(&pre_master_secret.data[psk_len + 4], ssl_session->psk.data, psk_len);
3925 |
3926 | ssl_session->pre_master_secret.data = pre_master_secret.data;
3927 | ssl_session->pre_master_secret.data_len = pre_master_len;
3928 | /*ssl_debug_printf("pre master secret",&ssl->pre_master_secret);*/
3929 |
3930 | /* Remove the master secret if it was there.
3931 | This forces keying material regeneration in
3932 | case we're renegotiating */
3933 | ssl_session->state &= ~(SSL_MASTER_SECRET(1<<5)|SSL_HAVE_SESSION_KEY(1<<3));
3934 | ssl_session->state |= SSL_PRE_MASTER_SECRET(1<<6);
3935 | return true1;
3936 | }
3937 | else
3938 | {
3939 | unsigned encrlen, skip;
3940 | encrlen = length;
3941 | skip = 0;
3942 |
3943 | /* get encrypted data, on tls1 we have to skip two bytes
3944 | * (it's the encrypted len and should be equal to record len - 2)
3945 | * in case of rsa1024 that would be 128 + 2 = 130; for psk not necessary
3946 | */
3947 | if (ssl_session->cipher_suite->kex == KEX_RSA0x1e &&
3948 | (ssl_session->session.version == TLSV1_VERSION0x301 ||
3949 | ssl_session->session.version == TLSV1DOT1_VERSION0x302 ||
3950 | ssl_session->session.version == TLSV1DOT2_VERSION0x303 ||
3951 | ssl_session->session.version == DTLSV1DOT0_VERSION0xfeff ||
3952 | ssl_session->session.version == DTLSV1DOT2_VERSION0xfefd ||
3953 | ssl_session->session.version == TLCPV1_VERSION0x101 ))
3954 | {
3955 | encrlen = tvb_get_ntohs(tvb, offset);
3956 | skip = 2;
3957 | if (encrlen > length - 2)
3958 | {
3959 | ssl_debug_printf("%s: wrong encrypted length (%d max %d)\n",
3960 | G_STRFUNC((const char*) (__func__)), encrlen, length);
3961 | return false0;
3962 | }
3963 | }
3964 | /* the valid lower bound is higher than 8, but it is sufficient for the
3965 | * ssl keylog file below */
3966 | if (encrlen < 8) {
3967 | ssl_debug_printf("%s: invalid encrypted pre-master key length %d\n",
3968 | G_STRFUNC((const char*) (__func__)), encrlen);
3969 | return false0;
3970 | }
3971 |
3972 | StringInfo encrypted_pre_master = {
3973 | .data = (unsigned char *)tvb_memdup(pinfo->pool, tvb, offset + skip, encrlen),
3974 | .data_len = encrlen,
3975 | };
3976 |
3977 | #ifdef HAVE_LIBGNUTLS1
3978 | /* Try to lookup an appropriate RSA private key to decrypt the Encrypted Pre-Master Secret. */
3979 | if (ssl_session->cert_key_id) {
3980 | if (ssl_decrypt_pre_master_secret(ssl_session, &encrypted_pre_master, key_hash))
3981 | return true1;
3982 |
3983 | ssl_debug_printf("%s: can't decrypt pre-master secret\n",
3984 | G_STRFUNC((const char*) (__func__)));
3985 | }
3986 | #endif /* HAVE_LIBGNUTLS */
3987 |
3988 | /* try to find the pre-master secret from the encrypted one. The
3989 | * ssl key logfile stores only the first 8 bytes, so truncate it */
3990 | encrypted_pre_master.data_len = 8;
3991 | if (ssl_restore_master_key(ssl_session, "Encrypted pre-master secret",
3992 | true1, mk_map->pre_master, &encrypted_pre_master))
3993 | return true1;
3994 | }
3995 | return false0;
3996 | }
3997 |
3998 | /* Used for (D)TLS 1.2 and earlier versions (not with TLS 1.3). */
3999 | int
4000 | ssl_generate_keyring_material(SslDecryptSession*ssl_session)
4001 | {
4002 | StringInfo key_block = { NULL((void*)0), 0 };
4003 | uint8_t _iv_c[MAX_BLOCK_SIZE16],_iv_s[MAX_BLOCK_SIZE16];
4004 | uint8_t _key_c[MAX_KEY_SIZE32],_key_s[MAX_KEY_SIZE32];
4005 | int needed;
4006 | int cipher_algo = -1; /* special value (-1) for NULL encryption */
4007 | unsigned encr_key_len, write_iv_len = 0;
4008 | bool_Bool is_export_cipher;
4009 | uint8_t *ptr, *c_iv = NULL((void*)0), *s_iv = NULL((void*)0);
4010 | uint8_t *c_wk = NULL((void*)0), *s_wk = NULL((void*)0), *c_mk = NULL((void*)0), *s_mk = NULL((void*)0);
4011 | const SslCipherSuite *cipher_suite = ssl_session->cipher_suite;
4012 |
4013 | /* (D)TLS 1.3 is handled directly in tls13_change_key. */
4014 | if (ssl_session->session.version == TLSV1DOT3_VERSION0x304 || ssl_session->session.version == DTLSV1DOT3_VERSION0xfefc) {
1 | Assuming field 'version' is not equal to TLSV1DOT3_VERSION | →
2 | ← | Assuming field 'version' is not equal to DTLSV1DOT3_VERSION | →
3 | ← | Taking false branch | →
4015 | ssl_debug_printf("%s: detected TLS 1.3. Should not have been called!\n", G_STRFUNC((const char*) (__func__)));
4016 | return -1;
4017 | }
4018 |
4019 | /* check for enough info to proceed */
4020 | unsigned need_all = SSL_CIPHER(1<<2)|SSL_CLIENT_RANDOM(1<<0)|SSL_SERVER_RANDOM(1<<1)|SSL_VERSION(1<<4);
4021 | unsigned need_any = SSL_MASTER_SECRET(1<<5) | SSL_PRE_MASTER_SECRET(1<<6);
4022 | if (((ssl_session->state & need_all) != need_all) || ((ssl_session->state & need_any) == 0)) {
4 | ← | Assuming the condition is false | →
5 | ← | Assuming the condition is false | →
6 | ← | Taking false branch | →
4023 | ssl_debug_printf("ssl_generate_keyring_material not enough data to generate key "
4024 | "(0x%02X required 0x%02X or 0x%02X)\n", ssl_session->state,
4025 | need_all|SSL_MASTER_SECRET(1<<5), need_all|SSL_PRE_MASTER_SECRET(1<<6));
4026 | /* Special case: for NULL encryption, allow dissection of data even if
4027 | * the Client Hello is missing (MAC keys are now skipped though). */
4028 | need_all = SSL_CIPHER(1<<2)|SSL_VERSION(1<<4);
4029 | if ((ssl_session->state & need_all) == need_all &&
4030 | cipher_suite->enc == ENC_NULL0x3D) {
4031 | ssl_debug_printf("%s NULL cipher found, will create a decoder but "
4032 | "skip MAC validation as keys are missing.\n", G_STRFUNC((const char*) (__func__)));
4033 | goto create_decoders;
4034 | }
4035 |
4036 | return -1;
4037 | }
4038 |
4039 | /* if master key is not available, generate is from the pre-master secret */
4040 | if (!(ssl_session->state & SSL_MASTER_SECRET(1<<5))) {
7 | ← | Assuming the condition is true | →
8 | ← | Taking true branch | →
4041 | if ((ssl_session->state & SSL_EXTENDED_MASTER_SECRET_MASK((1<<7)|(1<<8))) == SSL_EXTENDED_MASTER_SECRET_MASK((1<<7)|(1<<8))) {
9 | ← | Assuming the condition is true | →
10 | ← | Taking true branch | →
4042 | StringInfo handshake_hashed_data;
4043 | int ret;
4044 |
4045 | handshake_hashed_data.data = NULL((void*)0);
4046 | handshake_hashed_data.data_len = 0;
4047 |
4048 | ssl_debug_printf("%s:PRF(pre_master_secret_extended)\n", G_STRFUNC((const char*) (__func__)));
4049 | ssl_print_string("pre master secret",&ssl_session->pre_master_secret);
4050 | DISSECTOR_ASSERT(ssl_session->handshake_data.data_len > 0)((void) ((ssl_session->handshake_data.data_len > 0) ? ( void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 4050, "ssl_session->handshake_data.data_len > 0" ))));
11 | ← | Assuming field 'data_len' is > 0 | →
12 | ← | '?' condition is true | →
4051 |
4052 | switch(ssl_session->session.version) {
13 | ← | Control jumps to 'case 257:' at line 4057 | →
4053 | case TLSV1_VERSION0x301:
4054 | case TLSV1DOT1_VERSION0x302:
4055 | case DTLSV1DOT0_VERSION0xfeff:
4056 | case DTLSV1DOT0_OPENSSL_VERSION0x100:
4057 | case TLCPV1_VERSION0x101:
4058 | ret = tls_handshake_hash(ssl_session, &handshake_hashed_data);
14 | ← | Calling 'tls_handshake_hash' | →
22 | ← | Returned allocated memory | →
4059 | break;
4060 | default:
4061 | switch (cipher_suite->dig) {
4062 | case DIG_SHA3840x43:
4063 | ret = tls12_handshake_hash(ssl_session, GCRY_MD_SHA384, &handshake_hashed_data);
4064 | break;
4065 | default:
4066 | ret = tls12_handshake_hash(ssl_session, GCRY_MD_SHA256, &handshake_hashed_data);
4067 | break;
4068 | }
4069 | break;
4070 | }
4071 | if (ret
23.1 | 'ret' is -1
) {
23 | ← | Execution continues on line 4071 | →
24 | ← | Taking true branch | →
4072 | ssl_debug_printf("%s can't generate handshake hash\n", G_STRFUNC((const char*) (__func__)));
25 | ← | Potential leak of memory pointed to by 'handshake_hashed_data.data'
4073 | return -1;
4074 | }
4075 |
4076 | wmem_free(wmem_file_scope(), ssl_session->handshake_data.data);
4077 | ssl_session->handshake_data.data = NULL((void*)0);
4078 | ssl_session->handshake_data.data_len = 0;
4079 |
4080 | if (!prf(ssl_session, &ssl_session->pre_master_secret, "extended master secret",
4081 | &handshake_hashed_data,
4082 | NULL((void*)0), &ssl_session->master_secret,
4083 | SSL_MASTER_SECRET_LENGTH48)) {
4084 | ssl_debug_printf("%s can't generate master_secret\n", G_STRFUNC((const char*) (__func__)));
4085 | g_free(handshake_hashed_data.data)(__builtin_object_size ((handshake_hashed_data.data), 0) != ( (size_t) - 1)) ? g_free_sized (handshake_hashed_data.data, __builtin_object_size ((handshake_hashed_data.data), 0)) : (g_free) (handshake_hashed_data .data);
4086 | return -1;
4087 | }
4088 | g_free(handshake_hashed_data.data)(__builtin_object_size ((handshake_hashed_data.data), 0) != ( (size_t) - 1)) ? g_free_sized (handshake_hashed_data.data, __builtin_object_size ((handshake_hashed_data.data), 0)) : (g_free) (handshake_hashed_data .data);
4089 | } else {
4090 | ssl_debug_printf("%s:PRF(pre_master_secret)\n", G_STRFUNC((const char*) (__func__)));
4091 | ssl_print_string("pre master secret",&ssl_session->pre_master_secret);
4092 | ssl_print_string("client random",&ssl_session->client_random);
4093 | ssl_print_string("server random",&ssl_session->server_random);
4094 | if (!prf(ssl_session, &ssl_session->pre_master_secret, "master secret",
4095 | &ssl_session->client_random,
4096 | &ssl_session->server_random, &ssl_session->master_secret,
4097 | SSL_MASTER_SECRET_LENGTH48)) {
4098 | ssl_debug_printf("%s can't generate master_secret\n", G_STRFUNC((const char*) (__func__)));
4099 | return -1;
4100 | }
4101 | }
4102 | ssl_print_string("master secret",&ssl_session->master_secret);
4103 |
4104 | /* the pre-master secret has been 'consumed' so we must clear it now */
4105 | ssl_session->state &= ~SSL_PRE_MASTER_SECRET(1<<6);
4106 | ssl_session->state |= SSL_MASTER_SECRET(1<<5);
4107 | }
4108 |
4109 | /* Find the Libgcrypt cipher algorithm for the given SSL cipher suite ID */
4110 | if (cipher_suite->enc != ENC_NULL0x3D) {
4111 | const char *cipher_name = ciphers[cipher_suite->enc-ENC_START0x30];
4112 | ssl_debug_printf("%s CIPHER: %s\n", G_STRFUNC((const char*) (__func__)), cipher_name);
4113 | cipher_algo = ssl_get_cipher_by_name(cipher_name);
4114 | if (cipher_algo == 0) {
4115 | ssl_debug_printf("%s can't find cipher %s\n", G_STRFUNC((const char*) (__func__)), cipher_name);
4116 | return -1;
4117 | }
4118 | }
4119 |
4120 | /* Export ciphers consume less material from the key block. */
4121 | encr_key_len = ssl_get_cipher_export_keymat_size(cipher_suite->number);
4122 | is_export_cipher = encr_key_len > 0;
4123 | if (!is_export_cipher && cipher_suite->enc != ENC_NULL0x3D) {
4124 | encr_key_len = (unsigned)gcry_cipher_get_algo_keylen(cipher_algo);
4125 | }
4126 |
4127 | if (cipher_suite->mode == MODE_CBC) {
4128 | write_iv_len = (unsigned)gcry_cipher_get_algo_blklen(cipher_algo);
4129 | } else if (cipher_suite->mode == MODE_GCM || cipher_suite->mode == MODE_CCM || cipher_suite->mode == MODE_CCM_8) {
4130 | /* account for a four-byte salt for client and server side (from
4131 | * client_write_IV and server_write_IV), see GCMNonce (RFC 5288) */
4132 | write_iv_len = 4;
4133 | } else if (cipher_suite->mode == MODE_POLY1305) {
4134 | /* RFC 7905: SecurityParameters.fixed_iv_length is twelve bytes */
4135 | write_iv_len = 12;
4136 | }
4137 |
4138 | /* Compute the key block. First figure out how much data we need */
4139 | needed = ssl_cipher_suite_dig(cipher_suite)->len*2; /* MAC key */
4140 | needed += 2 * encr_key_len; /* encryption key */
4141 | needed += 2 * write_iv_len; /* write IV */
4142 |
4143 | key_block.data = (unsigned char *)g_malloc(needed);
4144 | ssl_debug_printf("%s sess key generation\n", G_STRFUNC((const char*) (__func__)));
4145 | if (!prf(ssl_session, &ssl_session->master_secret, "key expansion",
4146 | &ssl_session->server_random,&ssl_session->client_random,
4147 | &key_block, needed)) {
4148 | ssl_debug_printf("%s can't generate key_block\n", G_STRFUNC((const char*) (__func__)));
4149 | goto fail;
4150 | }
4151 | ssl_print_string("key expansion", &key_block);
4152 |
4153 | ptr=key_block.data;
4154 | /* client/server write MAC key (for non-AEAD ciphers) */
4155 | if (cipher_suite->mode == MODE_STREAM || cipher_suite->mode == MODE_CBC) {
4156 | c_mk=ptr; ptr+=ssl_cipher_suite_dig(cipher_suite)->len;
4157 | s_mk=ptr; ptr+=ssl_cipher_suite_dig(cipher_suite)->len;
4158 | }
4159 | /* client/server write encryption key */
4160 | c_wk=ptr; ptr += encr_key_len;
4161 | s_wk=ptr; ptr += encr_key_len;
4162 | /* client/server write IV (used as IV (for CBC) or salt (for AEAD)) */
4163 | if (write_iv_len > 0) {
4164 | c_iv=ptr; ptr += write_iv_len;
4165 | s_iv=ptr; /* ptr += write_iv_len; */
4166 | }
4167 |
4168 | /* export ciphers work with a smaller key length */
4169 | if (is_export_cipher) {
4170 | if (cipher_suite->mode == MODE_CBC) {
4171 |
4172 | /* We only have room for MAX_BLOCK_SIZE bytes IVs, but that's
4173 | all we should need. This is a sanity check */
4174 | if (write_iv_len > MAX_BLOCK_SIZE16) {
4175 | ssl_debug_printf("%s cipher suite block must be at most %d nut is %d\n",
4176 | G_STRFUNC((const char*) (__func__)), MAX_BLOCK_SIZE16, write_iv_len);
4177 | goto fail;
4178 | }
4179 |
4180 | if(ssl_session->session.version==SSLV3_VERSION0x300){
4181 | /* The length of these fields are ignored by this caller */
4182 | StringInfo iv_c, iv_s;
4183 | iv_c.data = _iv_c;
4184 | iv_s.data = _iv_s;
4185 |
4186 | ssl_debug_printf("%s ssl3_generate_export_iv\n", G_STRFUNC((const char*) (__func__)));
4187 | if (!ssl3_generate_export_iv(&ssl_session->client_random,
4188 | &ssl_session->server_random, &iv_c, write_iv_len)) {
4189 | goto fail;
4190 | }
4191 | ssl_debug_printf("%s ssl3_generate_export_iv(2)\n", G_STRFUNC((const char*) (__func__)));
4192 | if (!ssl3_generate_export_iv(&ssl_session->server_random,
4193 | &ssl_session->client_random, &iv_s, write_iv_len)) {
4194 | goto fail;
4195 | }
4196 | }
4197 | else{
4198 | uint8_t _iv_block[MAX_BLOCK_SIZE16 * 2];
4199 | StringInfo iv_block;
4200 | StringInfo key_null;
4201 | uint8_t _key_null;
4202 |
4203 | key_null.data = &_key_null;
4204 | key_null.data_len = 0;
4205 |
4206 | iv_block.data = _iv_block;
4207 |
4208 | ssl_debug_printf("%s prf(iv_block)\n", G_STRFUNC((const char*) (__func__)));
4209 | if (!prf(ssl_session, &key_null, "IV block",
4210 | &ssl_session->client_random,
4211 | &ssl_session->server_random, &iv_block,
4212 | write_iv_len * 2)) {
4213 | ssl_debug_printf("%s can't generate tls31 iv block\n", G_STRFUNC((const char*) (__func__)));
4214 | goto fail;
4215 | }
4216 |
4217 | memcpy(_iv_c, iv_block.data, write_iv_len);
4218 | memcpy(_iv_s, iv_block.data + write_iv_len, write_iv_len);
4219 | }
4220 |
4221 | c_iv=_iv_c;
4222 | s_iv=_iv_s;
4223 | }
4224 |
4225 | if (ssl_session->session.version==SSLV3_VERSION0x300){
4226 |
4227 | SSL_MD5_CTXgcry_md_hd_t md5;
4228 | ssl_debug_printf("%s MD5(client_random)\n", G_STRFUNC((const char*) (__func__)));
4229 |
4230 | if (ssl_md5_init(&md5) != 0)
4231 | goto fail;
4232 | ssl_md5_update(&md5,c_wk,encr_key_len);
4233 | ssl_md5_update(&md5,ssl_session->client_random.data,
4234 | ssl_session->client_random.data_len);
4235 | ssl_md5_update(&md5,ssl_session->server_random.data,
4236 | ssl_session->server_random.data_len);
4237 | ssl_md5_final(_key_c,&md5);
4238 | ssl_md5_cleanup(&md5);
4239 | c_wk=_key_c;
4240 |
4241 | if (ssl_md5_init(&md5) != 0)
4242 | goto fail;
4243 | ssl_debug_printf("%s MD5(server_random)\n", G_STRFUNC((const char*) (__func__)));
4244 | ssl_md5_update(&md5,s_wk,encr_key_len);
4245 | ssl_md5_update(&md5,ssl_session->server_random.data,
4246 | ssl_session->server_random.data_len);
4247 | ssl_md5_update(&md5,ssl_session->client_random.data,
4248 | ssl_session->client_random.data_len);
4249 | ssl_md5_final(_key_s,&md5);
4250 | ssl_md5_cleanup(&md5);
4251 | s_wk=_key_s;
4252 | }
4253 | else{
4254 | StringInfo key_c, key_s, k;
4255 | key_c.data = _key_c;
4256 | key_s.data = _key_s;
4257 |
4258 | k.data = c_wk;
4259 | k.data_len = encr_key_len;
4260 | ssl_debug_printf("%s PRF(key_c)\n", G_STRFUNC((const char*) (__func__)));
4261 | if (!prf(ssl_session, &k, "client write key",
4262 | &ssl_session->client_random,
4263 | &ssl_session->server_random, &key_c, sizeof(_key_c))) {
4264 | ssl_debug_printf("%s can't generate tll31 server key \n", G_STRFUNC((const char*) (__func__)));
4265 | goto fail;
4266 | }
4267 | c_wk=_key_c;
4268 |
4269 | k.data = s_wk;
4270 | k.data_len = encr_key_len;
4271 | ssl_debug_printf("%s PRF(key_s)\n", G_STRFUNC((const char*) (__func__)));
4272 | if (!prf(ssl_session, &k, "server write key",
4273 | &ssl_session->client_random,
4274 | &ssl_session->server_random, &key_s, sizeof(_key_s))) {
4275 | ssl_debug_printf("%s can't generate tll31 client key \n", G_STRFUNC((const char*) (__func__)));
4276 | goto fail;
4277 | }
4278 | s_wk=_key_s;
4279 | }
4280 | }
4281 |
4282 | /* show key material info */
4283 | if (c_mk != NULL((void*)0)) {
4284 | ssl_print_data("Client MAC key",c_mk,ssl_cipher_suite_dig(cipher_suite)->len);
4285 | ssl_print_data("Server MAC key",s_mk,ssl_cipher_suite_dig(cipher_suite)->len);
4286 | }
4287 | ssl_print_data("Client Write key", c_wk, encr_key_len);
4288 | ssl_print_data("Server Write key", s_wk, encr_key_len);
4289 | /* used as IV for CBC mode and the AEAD implicit nonce (salt) */
4290 | if (write_iv_len > 0) {
4291 | ssl_print_data("Client Write IV", c_iv, write_iv_len);
4292 | ssl_print_data("Server Write IV", s_iv, write_iv_len);
4293 | }
4294 |
4295 | create_decoders:
4296 | /* create both client and server ciphers*/
4297 | ssl_debug_printf("%s ssl_create_decoder(client)\n", G_STRFUNC((const char*) (__func__)));
4298 | ssl_session->client_new = ssl_create_decoder(cipher_suite, cipher_algo, ssl_session->session.compression, c_mk, c_wk, NULL((void*)0), c_iv, write_iv_len);
4299 | if (!ssl_session->client_new) {
4300 | ssl_debug_printf("%s can't init client decoder\n", G_STRFUNC((const char*) (__func__)));
4301 | goto fail;
4302 | }
4303 | ssl_debug_printf("%s ssl_create_decoder(server)\n", G_STRFUNC((const char*) (__func__)));
4304 | ssl_session->server_new = ssl_create_decoder(cipher_suite, cipher_algo, ssl_session->session.compression, s_mk, s_wk, NULL((void*)0), s_iv, write_iv_len);
4305 | if (!ssl_session->server_new) {
4306 | ssl_debug_printf("%s can't init server decoder\n", G_STRFUNC((const char*) (__func__)));
4307 | goto fail;
4308 | }
4309 |
4310 | /* Continue the SSL stream after renegotiation with new keys. */
4311 | ssl_session->client_new->flow = ssl_session->client ? ssl_session->client->flow : ssl_create_flow();
4312 | ssl_session->server_new->flow = ssl_session->server ? ssl_session->server->flow : ssl_create_flow();
4313 |
4314 | ssl_debug_printf("%s: client seq %" PRIu64"l" "u" ", server seq %" PRIu64"l" "u" "\n",
4315 | G_STRFUNC((const char*) (__func__)), ssl_session->client_new->seq, ssl_session->server_new->seq);
4316 | g_free(key_block.data)(__builtin_object_size ((key_block.data), 0) != ((size_t) - 1 )) ? g_free_sized (key_block.data, __builtin_object_size ((key_block .data), 0)) : (g_free) (key_block.data);
4317 | ssl_session->state |= SSL_HAVE_SESSION_KEY(1<<3);
4318 | return 0;
4319 |
4320 | fail:
4321 | g_free(key_block.data)(__builtin_object_size ((key_block.data), 0) != ((size_t) - 1 )) ? g_free_sized (key_block.data, __builtin_object_size ((key_block .data), 0)) : (g_free) (key_block.data);
4322 | return -1;
4323 | }
4324 |
4325 | /* Generated the key material based on the given secret. */
4326 | bool_Bool
4327 | tls13_generate_keys(SslDecryptSession *ssl_session, const StringInfo *secret, bool_Bool is_from_server)
4328 | {
4329 | bool_Bool success = false0;
4330 | unsigned char *write_key = NULL((void*)0), *write_iv = NULL((void*)0);
4331 | unsigned char *sn_key = NULL((void*)0);
4332 | SslDecoder *decoder;
4333 | unsigned key_length, iv_length;
4334 | int hash_algo;
4335 | const SslCipherSuite *cipher_suite = ssl_session->cipher_suite;
4336 | int cipher_algo;
4337 |
4338 | if ((ssl_session->session.version != TLSV1DOT3_VERSION0x304) && (ssl_session->session.version != DTLSV1DOT3_VERSION0xfefc)) {
4339 | ssl_debug_printf("%s only usable for TLS 1.3, not %#x!\n", G_STRFUNC((const char*) (__func__)),
4340 | ssl_session->session.version);
4341 | return false0;
4342 | }
4343 |
4344 | if (cipher_suite == NULL((void*)0)) {
4345 | ssl_debug_printf("%s Unknown cipher\n", G_STRFUNC((const char*) (__func__)));
4346 | return false0;
4347 | }
4348 |
4349 | if (cipher_suite->kex != KEX_TLS130x23) {
4350 | ssl_debug_printf("%s Invalid cipher suite 0x%04x spotted!\n", G_STRFUNC((const char*) (__func__)), cipher_suite->number);
4351 | return false0;
4352 | }
4353 |
4354 | /* Find the Libgcrypt cipher algorithm for the given SSL cipher suite ID */
4355 | const char *cipher_name = ciphers[cipher_suite->enc-ENC_START0x30];
4356 | ssl_debug_printf("%s CIPHER: %s\n", G_STRFUNC((const char*) (__func__)), cipher_name);
4357 | cipher_algo = ssl_get_cipher_by_name(cipher_name);
4358 | if (cipher_algo == 0) {
4359 | ssl_debug_printf("%s can't find cipher %s\n", G_STRFUNC((const char*) (__func__)), cipher_name);
4360 | return false0;
4361 | }
4362 |
4363 | const char *hash_name = ssl_cipher_suite_dig(cipher_suite)->name;
4364 | hash_algo = ssl_get_digest_by_name(hash_name);
4365 | if (!hash_algo) {
4366 | ssl_debug_printf("%s can't find hash function %s\n", G_STRFUNC((const char*) (__func__)), hash_name);
4367 | return false0;
4368 | }
4369 |
4370 | key_length = (unsigned) gcry_cipher_get_algo_keylen(cipher_algo);
4371 | /* AES-GCM/AES-CCM/Poly1305-ChaCha20 all have N_MIN=N_MAX = 12. */
4372 | iv_length = 12;
4373 | ssl_debug_printf("%s key_length %u iv_length %u\n", G_STRFUNC((const char*) (__func__)), key_length, iv_length);
4374 |
4375 | const char *label_prefix = tls13_hkdf_label_prefix(ssl_session);
4376 | if (!tls13_hkdf_expand_label(hash_algo, secret, label_prefix, "key", key_length, &write_key)) {
4377 | ssl_debug_printf("%s write_key expansion failed\n", G_STRFUNC((const char*) (__func__)));
4378 | return false0;
4379 | }
4380 | if (!tls13_hkdf_expand_label(hash_algo, secret, label_prefix, "iv", iv_length, &write_iv)) {
4381 | ssl_debug_printf("%s write_iv expansion failed\n", G_STRFUNC((const char*) (__func__)));
4382 | goto end;
4383 | }
4384 |
4385 | if (ssl_session->session.version == DTLSV1DOT3_VERSION0xfefc) {
4386 | if (!tls13_hkdf_expand_label(hash_algo, secret, label_prefix, "sn", key_length, &sn_key)) {
4387 | ssl_debug_printf("%s sn_key expansion failed\n", G_STRFUNC((const char*) (__func__)));
4388 | goto end;
4389 | }
4390 | }
4391 |
4392 | ssl_print_data(is_from_server ? "Server Write Key" : "Client Write Key", write_key, key_length);
4393 | ssl_print_data(is_from_server ? "Server Write IV" : "Client Write IV", write_iv, iv_length);
4394 | if (ssl_session->session.version == DTLSV1DOT3_VERSION0xfefc) {
4395 | ssl_print_data(is_from_server ? "Server Write SN" : "Client Write SN", sn_key, key_length);
4396 | }
4397 |
4398 | ssl_debug_printf("%s ssl_create_decoder(%s)\n", G_STRFUNC((const char*) (__func__)), is_from_server ? "server" : "client");
4399 | decoder = ssl_create_decoder(cipher_suite, cipher_algo, 0, NULL((void*)0), write_key, sn_key, write_iv, iv_length);
4400 | if (!decoder) {
4401 | ssl_debug_printf("%s can't init %s decoder\n", G_STRFUNC((const char*) (__func__)), is_from_server ? "server" : "client");
4402 | goto end;
4403 | }
4404 |
4405 | /* Continue the TLS session with new keys, but reuse old flow to keep things
4406 | * like "Follow TLS" working (by linking application data records). */
4407 | if (is_from_server) {
4408 | decoder->flow = ssl_session->server ? ssl_session->server->flow : ssl_create_flow();
4409 | ssl_session->server = decoder;
4410 | } else {
4411 | decoder->flow = ssl_session->client ? ssl_session->client->flow : ssl_create_flow();
4412 | ssl_session->client = decoder;
4413 | }
4414 | ssl_debug_printf("%s %s ready using cipher suite 0x%04x (cipher %s hash %s)\n", G_STRFUNC((const char*) (__func__)),
4415 | is_from_server ? "Server" : "Client", cipher_suite->number, cipher_name, hash_name);
4416 | success = true1;
4417 |
4418 | end:
4419 | wmem_free(NULL((void*)0), write_key);
4420 | wmem_free(NULL((void*)0), write_iv);
4421 | if (sn_key)
4422 | wmem_free(NULL((void*)0), sn_key);
4423 | return success;
4424 | }
4425 | /* (Pre-)master secrets calculations }}} */
4426 |
4427 | #ifdef HAVE_LIBGNUTLS1
4428 | /* Decrypt RSA pre-master secret using RSA private key. {{{ */
4429 | static bool_Bool
4430 | ssl_decrypt_pre_master_secret(SslDecryptSession *ssl_session,
4431 | StringInfo *encrypted_pre_master, GHashTable *key_hash)
4432 | {
4433 | int ret;
4434 |
4435 | if (!encrypted_pre_master)
4436 | return false0;
4437 |
4438 | if (KEX_IS_DH(ssl_session->cipher_suite->kex)((ssl_session->cipher_suite->kex) >= 0x10 && (ssl_session->cipher_suite->kex) <= 0x1b)) {
4439 | ssl_debug_printf("%s: session uses Diffie-Hellman key exchange "
4440 | "(cipher suite 0x%04X %s) and cannot be decrypted "
4441 | "using a RSA private key file.\n",
4442 | G_STRFUNC((const char*) (__func__)), ssl_session->session.cipher,
4443 | val_to_str_ext_const(ssl_session->session.cipher,
4444 | &ssl_31_ciphersuite_ext, "unknown"));
4445 | return false0;
4446 | } else if (ssl_session->cipher_suite->kex != KEX_RSA0x1e) {
4447 | ssl_debug_printf("%s key exchange %d different from KEX_RSA (%d)\n",
4448 | G_STRFUNC((const char*) (__func__)), ssl_session->cipher_suite->kex, KEX_RSA0x1e);
4449 | return false0;
4450 | }
4451 |
4452 | gnutls_privkey_t pk = (gnutls_privkey_t)g_hash_table_lookup(key_hash, ssl_session->cert_key_id);
4453 |
4454 | ssl_print_string("pre master encrypted", encrypted_pre_master);
4455 | ssl_debug_printf("%s: RSA_private_decrypt\n", G_STRFUNC((const char*) (__func__)));
4456 | const gnutls_datum_t epms = { encrypted_pre_master->data, encrypted_pre_master->data_len };
4457 | gnutls_datum_t pms = { 0 };
4458 | if (pk) {
4459 | // Try to decrypt using the RSA keys table from (D)TLS preferences.
4460 | char *err = NULL((void*)0);
4461 | gcry_sexp_t private_key = rsa_abstract_privkey_to_sexp(pk, &err);
4462 | if (!private_key) {
4463 | ssl_debug_printf("%s: decryption failed: Can't export private key: %s", G_STRFUNC((const char*) (__func__)), err);
4464 | g_free(err)(__builtin_object_size ((err), 0) != ((size_t) - 1)) ? g_free_sized (err, __builtin_object_size ((err), 0)) : (g_free) (err);
4465 | return false0;
4466 | }
4467 |
4468 | pms.size = (int)rsa_decrypt(encrypted_pre_master->data_len, encrypted_pre_master->data, &pms.data, private_key, "pkcs1", &err);
4469 | rsa_private_key_free(private_key);
4470 | if (pms.size == 0) {
4471 | ssl_debug_printf("%s: decryption failed: %s\n", G_STRFUNC((const char*) (__func__)), err);
4472 | g_free(err)(__builtin_object_size ((err), 0) != ((size_t) - 1)) ? g_free_sized (err, __builtin_object_size ((err), 0)) : (g_free) (err);
4473 | return false0;
4474 | }
4475 | } else {
4476 | // Try to decrypt using a hardware token.
4477 | ret = secrets_rsa_decrypt(ssl_session->cert_key_id, epms.data, epms.size, &pms.data, &pms.size);
4478 | if (ret < 0) {
4479 | ssl_debug_printf("%s: decryption failed: %d (%s)\n", G_STRFUNC((const char*) (__func__)), ret, gnutls_strerror(ret));
4480 | return false0;
4481 | }
4482 | }
4483 |
4484 | if (pms.size != 48) {
4485 | ssl_debug_printf("%s wrong pre_master_secret length (%d, expected %d)\n",
4486 | G_STRFUNC((const char*) (__func__)), pms.size, 48);
4487 | g_free(pms.data)(__builtin_object_size ((pms.data), 0) != ((size_t) - 1)) ? g_free_sized (pms.data, __builtin_object_size ((pms.data), 0)) : (g_free) (pms.data);
4488 | return false0;
4489 | }
4490 |
4491 | ssl_session->pre_master_secret.data = (uint8_t *)wmem_memdup(wmem_file_scope(), pms.data, 48);
4492 | ssl_session->pre_master_secret.data_len = 48;
4493 | g_free(pms.data)(__builtin_object_size ((pms.data), 0) != ((size_t) - 1)) ? g_free_sized (pms.data, __builtin_object_size ((pms.data), 0)) : (g_free) (pms.data);
4494 | ssl_print_string("pre master secret", &ssl_session->pre_master_secret);
4495 |
4496 | /* Remove the master secret if it was there.
4497 | This forces keying material regeneration in
4498 | case we're renegotiating */
4499 | ssl_session->state &= ~(SSL_MASTER_SECRET(1<<5)|SSL_HAVE_SESSION_KEY(1<<3));
4500 | ssl_session->state |= SSL_PRE_MASTER_SECRET(1<<6);
4501 | return true1;
4502 | } /* }}} */
4503 | #endif /* HAVE_LIBGNUTLS */
4504 |
4505 | /* Decryption integrity check {{{ */
4506 |
4507 | static int
4508 | tls_check_mac(SslDecoder*decoder, int ct, int ver, uint8_t* data,
4509 | uint32_t datalen, uint8_t* mac)
4510 | {
4511 | SSL_HMACgcry_md_hd_t hm;
4512 | int md;
4513 | uint32_t len;
4514 | uint8_t buf[DIGEST_MAX_SIZE48];
4515 | int16_t temp;
4516 |
4517 | md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name);
4518 | ssl_debug_printf("tls_check_mac mac type:%s md %d\n",
4519 | ssl_cipher_suite_dig(decoder->cipher_suite)->name, md);
4520 |
4521 | if (ssl_hmac_init(&hm,md) != 0)
4522 | return -1;
4523 | if (ssl_hmac_setkey(&hm,decoder->mac_key.data,decoder->mac_key.data_len) != 0)
4524 | return -1;
4525 |
4526 | /* hash sequence number */
4527 | phtonu64(buf, decoder->seq);
4528 |
4529 | decoder->seq++;
4530 |
4531 | ssl_hmac_update(&hm,buf,8);
4532 |
4533 | /* hash content type */
4534 | buf[0]=ct;
4535 | ssl_hmac_update(&hm,buf,1);
4536 |
4537 | /* hash version,data length and data*/
4538 | /* *((int16_t*)buf) = g_htons(ver); */
4539 | temp = g_htons(ver)(((((guint16) ( (guint16) ((guint16) (ver) >> 8) | (guint16 ) ((guint16) (ver) << 8))))));
4540 | memcpy(buf, &temp, 2);
4541 | ssl_hmac_update(&hm,buf,2);
4542 |
4543 | /* *((int16_t*)buf) = g_htons(datalen); */
4544 | temp = g_htons(datalen)(((((guint16) ( (guint16) ((guint16) (datalen) >> 8) | ( guint16) ((guint16) (datalen) << 8))))));
4545 | memcpy(buf, &temp, 2);
4546 | ssl_hmac_update(&hm,buf,2);
4547 | ssl_hmac_update(&hm,data,datalen);
4548 |
4549 | /* get digest and digest len*/
4550 | len = sizeof(buf);
4551 | ssl_hmac_final(&hm,buf,&len);
4552 | ssl_hmac_cleanup(&hm);
4553 | ssl_print_data("Mac", buf, len);
4554 | if(memcmp(mac,buf,len))
4555 | return -1;
4556 |
4557 | return 0;
4558 | }
4559 |
4560 | static int
4561 | ssl3_check_mac(SslDecoder*decoder,int ct,uint8_t* data,
4562 | uint32_t datalen, uint8_t* mac)
4563 | {
4564 | SSL_MDgcry_md_hd_t mc;
4565 | int md;
4566 | uint32_t len;
4567 | uint8_t buf[64],dgst[20];
4568 | int pad_ct;
4569 | int16_t temp;
4570 |
4571 | pad_ct=(decoder->cipher_suite->dig==DIG_SHA0x41)?40:48;
4572 |
4573 | /* get cipher used for digest computation */
4574 | md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name);
4575 | if (ssl_md_init(&mc,md) !=0)
4576 | return -1;
4577 |
4578 | /* do hash computation on data && padding */
4579 | ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len);
4580 |
4581 | /* hash padding*/
4582 | memset(buf,0x36,pad_ct);
4583 | ssl_md_update(&mc,buf,pad_ct);
4584 |
4585 | /* hash sequence number */
4586 | phtonu64(buf, decoder->seq);
4587 | decoder->seq++;
4588 | ssl_md_update(&mc,buf,8);
4589 |
4590 | /* hash content type */
4591 | buf[0]=ct;
4592 | ssl_md_update(&mc,buf,1);
4593 |
4594 | /* hash data length in network byte order and data*/
4595 | /* *((int16_t* )buf) = g_htons(datalen); */
4596 | temp = g_htons(datalen)(((((guint16) ( (guint16) ((guint16) (datalen) >> 8) | ( guint16) ((guint16) (datalen) << 8))))));
4597 | memcpy(buf, &temp, 2);
4598 | ssl_md_update(&mc,buf,2);
4599 | ssl_md_update(&mc,data,datalen);
4600 |
4601 | /* get partial digest */
4602 | ssl_md_final(&mc,dgst,&len);
4603 | ssl_md_reset(&mc);
4604 |
4605 | /* hash mac key */
4606 | ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len);
4607 |
4608 | /* hash padding and partial digest*/
4609 | memset(buf,0x5c,pad_ct);
4610 | ssl_md_update(&mc,buf,pad_ct);
4611 | ssl_md_update(&mc,dgst,len);
4612 |
4613 | ssl_md_final(&mc,dgst,&len);
4614 | ssl_md_cleanup(&mc);
4615 |
4616 | if(memcmp(mac,dgst,len))
4617 | return -1;
4618 |
4619 | return 0;
4620 | }
4621 |
4622 | static int
4623 | dtls_check_mac(SslDecryptSession *ssl, SslDecoder*decoder, int ct, uint8_t* data,
4624 | uint32_t datalen, uint8_t* mac, const unsigned char *cid, uint8_t cidl)
4625 | {
4626 | SSL_HMACgcry_md_hd_t hm;
4627 | int md;
4628 | uint32_t len;
4629 | uint8_t buf[DIGEST_MAX_SIZE48];
4630 | int16_t temp;
4631 |
4632 | int ver = ssl->session.version;
4633 | bool_Bool is_cid = ((ct == SSL_ID_TLS12_CID) && (ver == DTLSV1DOT2_VERSION0xfefd));
4634 |
4635 | md=ssl_get_digest_by_name(ssl_cipher_suite_dig(decoder->cipher_suite)->name);
4636 | ssl_debug_printf("dtls_check_mac mac type:%s md %d\n",
4637 | ssl_cipher_suite_dig(decoder->cipher_suite)->name, md);
4638 |
4639 | if (ssl_hmac_init(&hm,md) != 0)
4640 | return -1;
4641 | if (ssl_hmac_setkey(&hm,decoder->mac_key.data,decoder->mac_key.data_len) != 0)
4642 | return -1;
4643 |
4644 | ssl_debug_printf("dtls_check_mac seq: %" PRIu64"l" "u" " epoch: %d\n",decoder->seq,decoder->epoch);
4645 |
4646 | if (is_cid && !ssl->session.deprecated_cid) {
4647 | /* hash seq num placeholder */
4648 | memset(buf,0xFF,8);
4649 | ssl_hmac_update(&hm,buf,8);
4650 |
4651 | /* hash content type + cid length + content type */
4652 | buf[0]=ct;
4653 | buf[1]=cidl;
4654 | buf[2]=ct;
4655 | ssl_hmac_update(&hm,buf,3);
4656 |
4657 | /* hash version */
4658 | temp = g_htons(ver)(((((guint16) ( (guint16) ((guint16) (ver) >> 8) | (guint16 ) ((guint16) (ver) << 8))))));
4659 | memcpy(buf, &temp, 2);
4660 | ssl_hmac_update(&hm,buf,2);
4661 |
4662 | /* hash sequence number */
4663 | phtonu64(buf, decoder->seq);
4664 | buf[0]=decoder->epoch>>8;
4665 | buf[1]=(uint8_t)decoder->epoch;
4666 | ssl_hmac_update(&hm,buf,8);
4667 |
4668 | /* hash cid */
4669 | ssl_hmac_update(&hm,cid,cidl);
4670 | } else {
4671 | /* hash sequence number */
4672 | phtonu64(buf, decoder->seq);
4673 | buf[0]=decoder->epoch>>8;
4674 | buf[1]=(uint8_t)decoder->epoch;
4675 | ssl_hmac_update(&hm,buf,8);
4676 |
4677 | /* hash content type */
4678 | buf[0]=ct;
4679 | ssl_hmac_update(&hm,buf,1);
4680 |
4681 | /* hash version */
4682 | temp = g_htons(ver)(((((guint16) ( (guint16) ((guint16) (ver) >> 8) | (guint16 ) ((guint16) (ver) << 8))))));
4683 | memcpy(buf, &temp, 2);
4684 | ssl_hmac_update(&hm,buf,2);
4685 |
4686 | if (is_cid && ssl->session.deprecated_cid) {
4687 | /* hash cid */
4688 | ssl_hmac_update(&hm,cid,cidl);
4689 |
4690 | /* hash cid length */
4691 | buf[0] = cidl;
4692 | ssl_hmac_update(&hm,buf,1);
4693 | }
4694 | }
4695 |
4696 | /* data length and data */
4697 | temp = g_htons(datalen)(((((guint16) ( (guint16) ((guint16) (datalen) >> 8) | ( guint16) ((guint16) (datalen) << 8))))));
4698 | memcpy(buf, &temp, 2);
4699 | ssl_hmac_update(&hm,buf,2);
4700 | ssl_hmac_update(&hm,data,datalen);
4701 |
4702 | /* get digest and digest len */
4703 | len = sizeof(buf);
4704 | ssl_hmac_final(&hm,buf,&len);
4705 | ssl_hmac_cleanup(&hm);
4706 | ssl_print_data("Mac", buf, len);
4707 | if(memcmp(mac,buf,len))
4708 | return -1;
4709 |
4710 | return 0;
4711 | }
4712 | /* Decryption integrity check }}} */
4713 |
4714 |
4715 | static bool_Bool
4716 | tls_decrypt_aead_record(wmem_allocator_t* allocator, SslDecryptSession *ssl, SslDecoder *decoder,
4717 | uint8_t ct, uint16_t record_version,
4718 | bool_Bool ignore_mac_failed,
4719 | const unsigned char *in, uint16_t inl,
4720 | const unsigned char *cid, uint8_t cidl,
4721 | StringInfo *out_str, unsigned *outl)
4722 | {
4723 | /* RFC 5246 (TLS 1.2) 6.2.3.3 defines the TLSCipherText.fragment as:
4724 | * GenericAEADCipher: { nonce_explicit, [content] }
4725 | * In TLS 1.3 this explicit nonce is gone.
4726 | * With AES GCM/CCM, "[content]" is actually the concatenation of the
4727 | * ciphertext and authentication tag.
4728 | */
4729 | const uint16_t version = ssl->session.version;
4730 | const bool_Bool is_v12 = version == TLSV1DOT2_VERSION0x303 || version == DTLSV1DOT2_VERSION0xfefd || version == TLCPV1_VERSION0x101;
4731 | gcry_error_t err;
4732 | const unsigned char *explicit_nonce = NULL((void*)0), *ciphertext;
4733 | unsigned ciphertext_len, auth_tag_len;
4734 | unsigned char nonce[12];
4735 | const ssl_cipher_mode_t cipher_mode = decoder->cipher_suite->mode;
4736 | const bool_Bool is_cid = ct == SSL_ID_TLS12_CID && version == DTLSV1DOT2_VERSION0xfefd;
4737 | const uint8_t draft_version = ssl->session.tls13_draft_version;
4738 | const unsigned char *auth_tag_wire;
4739 | unsigned char auth_tag_calc[16];
4740 | unsigned char *aad = NULL((void*)0);
4741 | unsigned aad_len = 0;
4742 |
4743 | switch (cipher_mode) {
4744 | case MODE_GCM:
4745 | case MODE_CCM:
4746 | case MODE_POLY1305:
4747 | auth_tag_len = 16;
4748 | break;
4749 | case MODE_CCM_8:
4750 | auth_tag_len = 8;
4751 | break;
4752 | default:
4753 | ssl_debug_printf("%s unsupported cipher!\n", G_STRFUNC((const char*) (__func__)));
4754 | return false0;
4755 | }
4756 |
4757 | /* Parse input into explicit nonce (TLS 1.2 only), ciphertext and tag. */
4758 | if (is_v12 && cipher_mode != MODE_POLY1305) {
4759 | if (inl < EXPLICIT_NONCE_LEN8 + auth_tag_len) {
4760 | ssl_debug_printf("%s input %d is too small for explicit nonce %d and auth tag %d\n",
4761 | G_STRFUNC((const char*) (__func__)), inl, EXPLICIT_NONCE_LEN8, auth_tag_len);
4762 | return false0;
4763 | }
4764 | explicit_nonce = in;
4765 | ciphertext = explicit_nonce + EXPLICIT_NONCE_LEN8;
4766 | ciphertext_len = inl - EXPLICIT_NONCE_LEN8 - auth_tag_len;
4767 | } else if (version == TLSV1DOT3_VERSION0x304 || version == DTLSV1DOT3_VERSION0xfefc || cipher_mode == MODE_POLY1305) {
4768 | if (inl < auth_tag_len) {
4769 | ssl_debug_printf("%s input %d has no space for auth tag %d\n", G_STRFUNC((const char*) (__func__)), inl, auth_tag_len);
4770 | return false0;
4771 | }
4772 | ciphertext = in;
4773 | ciphertext_len = inl - auth_tag_len;
4774 | } else {
4775 | ssl_debug_printf("%s Unexpected TLS version %#x\n", G_STRFUNC((const char*) (__func__)), version);
4776 | return false0;
4777 | }
4778 | auth_tag_wire = ciphertext + ciphertext_len;
4779 |
4780 | /*
4781 | * Nonce construction is version-specific. Note that AEAD_CHACHA20_POLY1305
4782 | * (RFC 7905) uses a nonce construction similar to TLS 1.3.
4783 | */
4784 | if (is_v12 && cipher_mode != MODE_POLY1305) {
4785 | DISSECTOR_ASSERT(decoder->write_iv.data_len == IMPLICIT_NONCE_LEN)((void) ((decoder->write_iv.data_len == 4) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 4785, "decoder->write_iv.data_len == 4"))));
4786 | /* Implicit (4) and explicit (8) part of nonce. */
4787 | memcpy(nonce, decoder->write_iv.data, IMPLICIT_NONCE_LEN4);
4788 | memcpy(nonce + IMPLICIT_NONCE_LEN4, explicit_nonce, EXPLICIT_NONCE_LEN8);
4789 |
4790 | } else if (version == TLSV1DOT3_VERSION0x304 || version == DTLSV1DOT3_VERSION0xfefc || cipher_mode == MODE_POLY1305) {
4791 | /*
4792 | * Technically the nonce length must be at least 8 bytes, but for
4793 | * AES-GCM, AES-CCM and Poly1305-ChaCha20 the nonce length is exact 12.
4794 | */
4795 | const unsigned nonce_len = 12;
4796 | DISSECTOR_ASSERT(decoder->write_iv.data_len == nonce_len)((void) ((decoder->write_iv.data_len == nonce_len) ? (void )0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 4796, "decoder->write_iv.data_len == nonce_len" ))));
4797 | memcpy(nonce, decoder->write_iv.data, decoder->write_iv.data_len);
4798 | /* Sequence number is left-padded with zeroes and XORed with write_iv */
4799 | phtonu64(nonce + nonce_len - 8, pntohu64(nonce + nonce_len - 8) ^ decoder->seq);
4800 | ssl_debug_printf("%s seq %" PRIu64"l" "u" "\n", G_STRFUNC((const char*) (__func__)), decoder->seq);
4801 | }
4802 |
4803 | /* Set nonce and additional authentication data */
4804 | gcry_cipher_reset(decoder->evp)gcry_cipher_ctl ((decoder->evp), GCRYCTL_RESET, ((void*)0) , 0);
4805 | ssl_print_data("nonce", nonce, 12);
4806 | err = gcry_cipher_setiv(decoder->evp, nonce, 12);
4807 | if (err) {
4808 | ssl_debug_printf("%s failed to set nonce: %s\n", G_STRFUNC((const char*) (__func__)), gcry_strerror(err));
4809 | return false0;
4810 | }
4811 |
4812 | /* (D)TLS 1.2 needs specific AAD, TLS 1.3 (before -25) uses empty AAD. */
4813 | if (is_cid) { /* if connection ID */
4814 | if (ssl->session.deprecated_cid) {
4815 | aad_len = 14 + cidl;
4816 | aad = wmem_alloc(allocator, aad_len);
4817 | phtonu64(aad, decoder->seq); /* record sequence number */
4818 | phtonu16(aad, decoder->epoch); /* DTLS 1.2 includes epoch. */
4819 | aad[8] = ct; /* TLSCompressed.type */
4820 | phtonu16(aad + 9, record_version); /* TLSCompressed.version */
4821 | memcpy(aad + 11, cid, cidl); /* cid */
4822 | aad[11 + cidl] = cidl; /* cid_length */
4823 | phtonu16(aad + 12 + cidl, ciphertext_len); /* TLSCompressed.length */
4824 | } else {
4825 | aad_len = 23 + cidl;
4826 | aad = wmem_alloc(allocator, aad_len);
4827 | memset(aad, 0xFF, 8); /* seq_num_placeholder */
4828 | aad[8] = ct; /* TLSCompressed.type */
4829 | aad[9] = cidl; /* cid_length */
4830 | aad[10] = ct; /* TLSCompressed.type */
4831 | phtonu16(aad + 11, record_version); /* TLSCompressed.version */
4832 | phtonu64(aad + 13, decoder->seq); /* record sequence number */
4833 | phtonu16(aad + 13, decoder->epoch); /* DTLS 1.2 includes epoch. */
4834 | memcpy(aad + 21, cid, cidl); /* cid */
4835 | phtonu16(aad + 21 + cidl, ciphertext_len); /* TLSCompressed.length */
4836 | }
4837 | } else if (is_v12) {
4838 | aad_len = 13;
4839 | aad = wmem_alloc(allocator, aad_len);
4840 | phtonu64(aad, decoder->seq); /* record sequence number */
4841 | if (version == DTLSV1DOT2_VERSION0xfefd) {
4842 | phtonu16(aad, decoder->epoch); /* DTLS 1.2 includes epoch. */
4843 | }
4844 | aad[8] = ct; /* TLSCompressed.type */
4845 | phtonu16(aad + 9, record_version); /* TLSCompressed.version */
4846 | phtonu16(aad + 11, ciphertext_len); /* TLSCompressed.length */
4847 | } else if (version == DTLSV1DOT3_VERSION0xfefc) {
4848 | aad_len = decoder->dtls13_aad.data_len;
4849 | aad = decoder->dtls13_aad.data;
4850 | } else if (draft_version >= 25 || draft_version == 0) {
4851 | aad_len = 5;
4852 | aad = wmem_alloc(allocator, aad_len);
4853 | aad[0] = ct; /* TLSCiphertext.opaque_type (23) */
4854 | phtonu16(aad + 1, record_version); /* TLSCiphertext.legacy_record_version (0x0303) */
4855 | phtonu16(aad + 3, inl); /* TLSCiphertext.length */
4856 | }
4857 |
4858 | if (decoder->cipher_suite->mode == MODE_CCM || decoder->cipher_suite->mode == MODE_CCM_8) {
4859 | /* size of plaintext, additional authenticated data and auth tag. */
4860 | uint64_t lengths[3] = { ciphertext_len, aad_len, auth_tag_len };
4861 |
4862 | gcry_cipher_ctl(decoder->evp, GCRYCTL_SET_CCM_LENGTHS, lengths, sizeof(lengths));
4863 | }
4864 |
4865 | if (aad && aad_len > 0) {
4866 | ssl_print_data("AAD", aad, aad_len);
4867 | err = gcry_cipher_authenticate(decoder->evp, aad, aad_len);
4868 | if (err) {
4869 | ssl_debug_printf("%s failed to set AAD: %s\n", G_STRFUNC((const char*) (__func__)), gcry_strerror(err));
4870 | return false0;
4871 | }
4872 | }
4873 |
4874 | /* Decrypt now that nonce and AAD are set. */
4875 | err = gcry_cipher_decrypt(decoder->evp, out_str->data, out_str->data_len, ciphertext, ciphertext_len);
4876 | if (err) {
4877 | ssl_debug_printf("%s decrypt failed: %s\n", G_STRFUNC((const char*) (__func__)), gcry_strerror(err));
4878 | return false0;
4879 | }
4880 |
4881 | /* Check authentication tag for authenticity (replaces MAC) */
4882 | err = gcry_cipher_gettag(decoder->evp, auth_tag_calc, auth_tag_len);
4883 | if (err == 0 && !memcmp(auth_tag_calc, auth_tag_wire, auth_tag_len)) {
4884 | ssl_print_data("auth_tag(OK)", auth_tag_calc, auth_tag_len);
4885 | } else {
4886 | if (err) {
4887 | ssl_debug_printf("%s cannot obtain tag: %s\n", G_STRFUNC((const char*) (__func__)), gcry_strerror(err));
4888 | } else {
4889 | ssl_debug_printf("%s auth tag mismatch\n", G_STRFUNC((const char*) (__func__)));
4890 | ssl_print_data("auth_tag(expect)", auth_tag_calc, auth_tag_len);
4891 | ssl_print_data("auth_tag(actual)", auth_tag_wire, auth_tag_len);
4892 | }
4893 | if (ignore_mac_failed) {
4894 | ssl_debug_printf("%s: auth check failed, but ignored for troubleshooting ;-)\n", G_STRFUNC((const char*) (__func__)));
4895 | } else {
4896 | return false0;
4897 | }
4898 | }
4899 |
4900 | /*
4901 | * Increment the (implicit) sequence number for TLS 1.2/1.3 and TLCP 1.1. This is done
4902 | * after successful authentication to ensure that early data is skipped when
4903 | * CLIENT_EARLY_TRAFFIC_SECRET keys are unavailable.
4904 | */
4905 | if (version == TLSV1DOT2_VERSION0x303 || version == TLSV1DOT3_VERSION0x304 || version == TLCPV1_VERSION0x101) {
4906 | decoder->seq++;
4907 | }
4908 |
4909 | ssl_print_data("Plaintext", out_str->data, ciphertext_len);
4910 | *outl = ciphertext_len;
4911 | return true1;
4912 | }
4913 |
4914 | /* Record decryption glue based on security parameters {{{ */
4915 | /* Assume that we are called only for a non-NULL decoder which also means that
4916 | * we have a non-NULL decoder->cipher_suite. */
4917 | int
4918 | ssl_decrypt_record(wmem_allocator_t* allocator, SslDecryptSession *ssl, SslDecoder *decoder, uint8_t ct, uint16_t record_version,
4919 | bool_Bool ignore_mac_failed,
4920 | const unsigned char *in, uint16_t inl, const unsigned char *cid, uint8_t cidl,
4921 | StringInfo *comp_str, StringInfo *out_str, unsigned *outl)
4922 | {
4923 | unsigned pad, worklen, uncomplen, maclen, mac_fraglen = 0;
4924 | uint8_t *mac = NULL((void*)0), *mac_frag = NULL((void*)0);
4925 |
4926 | ssl_debug_printf("ssl_decrypt_record ciphertext len %d\n", inl);
4927 | ssl_print_data("Ciphertext",in, inl);
4928 |
4929 | if (((ssl->session.version == TLSV1DOT3_VERSION0x304 || ssl->session.version == DTLSV1DOT3_VERSION0xfefc))
4930 | != (decoder->cipher_suite->kex == KEX_TLS130x23)) {
4931 | ssl_debug_printf("%s Invalid cipher suite for the protocol version!\n", G_STRFUNC((const char*) (__func__)));
4932 | return -1;
4933 | }
4934 |
4935 | /* ensure we have enough storage space for decrypted data */
4936 | if (inl > out_str->data_len)
4937 | {
4938 | ssl_debug_printf("ssl_decrypt_record: allocating %d bytes for decrypt data (old len %d)\n",
4939 | inl + 32, out_str->data_len);
4940 | ssl_data_realloc(out_str, inl + 32);
4941 | }
4942 |
4943 | /* AEAD ciphers (GenericAEADCipher in TLS 1.2; TLS 1.3) have no padding nor
4944 | * a separate MAC, so use a different routine for simplicity. */
4945 | if (decoder->cipher_suite->mode == MODE_GCM ||
4946 | decoder->cipher_suite->mode == MODE_CCM ||
4947 | decoder->cipher_suite->mode == MODE_CCM_8 ||
4948 | decoder->cipher_suite->mode == MODE_POLY1305 ||
4949 | ssl->session.version == TLSV1DOT3_VERSION0x304 ||
4950 | ssl->session.version == DTLSV1DOT3_VERSION0xfefc) {
4951 |
4952 | if (!tls_decrypt_aead_record(allocator, ssl, decoder, ct, record_version, ignore_mac_failed, in, inl, cid, cidl, out_str, &worklen)) {
4953 | /* decryption failed */
4954 | return -1;
4955 | }
4956 |
4957 | goto skip_mac;
4958 | }
4959 |
4960 | /* RFC 6101/2246: SSLCipherText/TLSCipherText has two structures for types:
4961 | * (notation: { unencrypted, [ encrypted ] })
4962 | * GenericStreamCipher: { [content, mac] }
4963 | * GenericBlockCipher: { IV (TLS 1.1+), [content, mac, padding, padding_len] }
4964 | * RFC 5426 (TLS 1.2): TLSCipherText has additionally:
4965 | * GenericAEADCipher: { nonce_explicit, [content] }
4966 | * RFC 4347 (DTLS): based on TLS 1.1, only GenericBlockCipher is supported.
4967 | * RFC 6347 (DTLS 1.2): based on TLS 1.2, includes GenericAEADCipher too.
4968 | */
4969 |
4970 | maclen = ssl_cipher_suite_dig(decoder->cipher_suite)->len;
4971 |
4972 | /* (TLS 1.1 and later, DTLS) Extract explicit IV for GenericBlockCipher */
4973 | if (decoder->cipher_suite->mode == MODE_CBC) {
4974 | unsigned blocksize = 0;
4975 |
4976 | switch (ssl->session.version) {
4977 | case TLSV1DOT1_VERSION0x302:
4978 | case TLSV1DOT2_VERSION0x303:
4979 | case DTLSV1DOT0_VERSION0xfeff:
4980 | case DTLSV1DOT2_VERSION0xfefd:
4981 | case DTLSV1DOT3_VERSION0xfefc:
4982 | case DTLSV1DOT0_OPENSSL_VERSION0x100:
4983 | case TLCPV1_VERSION0x101:
4984 | blocksize = ssl_get_cipher_blocksize(decoder->cipher_suite);
4985 | if (inl < blocksize) {
4986 | ssl_debug_printf("ssl_decrypt_record failed: input %d has no space for IV %d\n",
4987 | inl, blocksize);
4988 | return -1;
4989 | }
4990 | pad = gcry_cipher_setiv(decoder->evp, in, blocksize);
4991 | if (pad != 0) {
4992 | ssl_debug_printf("ssl_decrypt_record failed: failed to set IV: %s %s\n",
4993 | gcry_strsource (pad), gcry_strerror (pad));
4994 | }
4995 |
4996 | inl -= blocksize;
4997 | in += blocksize;
4998 | break;
4999 | }
5000 |
5001 | /* Encrypt-then-MAC for (D)TLS (RFC 7366) */
5002 | if (ssl->state & SSL_ENCRYPT_THEN_MAC(1<<11)) {
5003 | /*
5004 | * MAC is calculated over (IV + ) ENCRYPTED contents:
5005 | *
5006 | * MAC(MAC_write_key, ... +
5007 | * IV + // for TLS 1.1 or greater
5008 | * TLSCiphertext.enc_content);
5009 | */
5010 | if (inl < maclen) {
5011 | ssl_debug_printf("%s failed: input %d has no space for MAC %d\n",
5012 | G_STRFUNC((const char*) (__func__)), inl, maclen);
5013 | return -1;
5014 | }
5015 | inl -= maclen;
5016 | mac = (uint8_t *)in + inl;
5017 | mac_frag = (uint8_t *)in - blocksize;
5018 | mac_fraglen = blocksize + inl;
5019 | }
5020 | }
5021 |
5022 | /* First decrypt*/
5023 | if ((pad = ssl_cipher_decrypt(&decoder->evp, out_str->data, out_str->data_len, in, inl)) != 0) {
5024 | ssl_debug_printf("ssl_decrypt_record failed: ssl_cipher_decrypt: %s %s\n", gcry_strsource (pad),
5025 | gcry_strerror (pad));
5026 | return -1;
5027 | }
5028 |
5029 | ssl_print_data("Plaintext", out_str->data, inl);
5030 | worklen=inl;
5031 |
5032 |
5033 | /* strip padding for GenericBlockCipher */
5034 | if (decoder->cipher_suite->mode == MODE_CBC) {
5035 | if (inl < 1) { /* Should this check happen earlier? */
5036 | ssl_debug_printf("ssl_decrypt_record failed: input length %d too small\n", inl);
5037 | return -1;
5038 | }
5039 | pad=out_str->data[inl-1];
5040 | if (worklen <= pad) {
5041 | ssl_debug_printf("ssl_decrypt_record failed: padding %d too large for work %d\n",
5042 | pad, worklen);
5043 | return -1;
5044 | }
5045 | worklen-=(pad+1);
5046 | ssl_debug_printf("ssl_decrypt_record found padding %d final len %d\n",
5047 | pad, worklen);
5048 | }
5049 |
5050 | /* MAC for GenericStreamCipher and GenericBlockCipher.
5051 | * (normal case without Encrypt-then-MAC (RFC 7366) extension. */
5052 | if (!mac) {
5053 | /*
5054 | * MAC is calculated over the DECRYPTED contents:
5055 | *
5056 | * MAC(MAC_write_key, ... + TLSCompressed.fragment);
5057 | */
5058 | if (worklen < maclen) {
5059 | ssl_debug_printf("%s wrong record len/padding outlen %d\n work %d\n", G_STRFUNC((const char*) (__func__)), *outl, worklen);
5060 | return -1;
5061 | }
5062 | worklen -= maclen;
5063 | mac = out_str->data + worklen;
5064 | mac_frag = out_str->data;
5065 | mac_fraglen = worklen;
5066 | }
5067 |
5068 | /* If NULL encryption active and no keys are available, do not bother
5069 | * checking the MAC. We do not have keys for that. */
5070 | if (decoder->cipher_suite->mode == MODE_STREAM &&
5071 | decoder->cipher_suite->enc == ENC_NULL0x3D &&
5072 | !(ssl->state & SSL_MASTER_SECRET(1<<5))) {
5073 | ssl_debug_printf("MAC check skipped due to missing keys\n");
5074 | decoder->seq++; // Increment this for display
5075 | goto skip_mac;
5076 | }
5077 |
5078 | /* Now check the MAC */
5079 | ssl_debug_printf("checking mac (len %d, version %X, ct %d seq %" PRIu64"l" "u" ")\n",
5080 | worklen, ssl->session.version, ct, decoder->seq);
5081 | if(ssl->session.version==SSLV3_VERSION0x300){
5082 | if(ssl3_check_mac(decoder,ct,mac_frag,mac_fraglen,mac) < 0) {
5083 | if(ignore_mac_failed) {
5084 | ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n");
5085 | }
5086 | else{
5087 | ssl_debug_printf("ssl_decrypt_record: mac failed\n");
5088 | return -1;
5089 | }
5090 | }
5091 | else{
5092 | ssl_debug_printf("ssl_decrypt_record: mac ok\n");
5093 | }
5094 | }
5095 | else if(ssl->session.version==TLSV1_VERSION0x301 || ssl->session.version==TLSV1DOT1_VERSION0x302 || ssl->session.version==TLSV1DOT2_VERSION0x303 || ssl->session.version==TLCPV1_VERSION0x101){
5096 | if(tls_check_mac(decoder,ct,ssl->session.version,mac_frag,mac_fraglen,mac)< 0) {
5097 | if(ignore_mac_failed) {
5098 | ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n");
5099 | }
5100 | else{
5101 | ssl_debug_printf("ssl_decrypt_record: mac failed\n");
5102 | return -1;
5103 | }
5104 | }
5105 | else{
5106 | ssl_debug_printf("ssl_decrypt_record: mac ok\n");
5107 | }
5108 | }
5109 | else if(ssl->session.version==DTLSV1DOT0_VERSION0xfeff ||
5110 | ssl->session.version==DTLSV1DOT2_VERSION0xfefd ||
5111 | ssl->session.version==DTLSV1DOT0_OPENSSL_VERSION0x100){
5112 | /* Try rfc-compliant mac first, and if failed, try old openssl's non-rfc-compliant mac */
5113 | if(dtls_check_mac(ssl,decoder,ct,mac_frag,mac_fraglen,mac,cid,cidl)>= 0) {
5114 | ssl_debug_printf("ssl_decrypt_record: mac ok\n");
5115 | }
5116 | else if(tls_check_mac(decoder,ct,TLSV1_VERSION0x301,mac_frag,mac_fraglen,mac)>= 0) {
5117 | ssl_debug_printf("ssl_decrypt_record: dtls rfc-compliant mac failed, but old openssl's non-rfc-compliant mac ok\n");
5118 | }
5119 | else if(ignore_mac_failed) {
5120 | ssl_debug_printf("ssl_decrypt_record: mac failed, but ignored for troubleshooting ;-)\n");
5121 | }
5122 | else{
5123 | ssl_debug_printf("ssl_decrypt_record: mac failed\n");
5124 | return -1;
5125 | }
5126 | }
5127 | skip_mac:
5128 |
5129 | *outl = worklen;
5130 |
5131 | if (decoder->compression > 0) {
5132 | ssl_debug_printf("ssl_decrypt_record: compression method %d\n", decoder->compression);
5133 | ssl_data_copy(comp_str, out_str);
5134 | ssl_print_data("Plaintext compressed", comp_str->data, worklen);
5135 | if (!decoder->decomp) {
5136 | ssl_debug_printf("decrypt_ssl3_record: no decoder available\n");
5137 | return -1;
5138 | }
5139 | if (ssl_decompress_record(decoder->decomp, comp_str->data, worklen, out_str, &uncomplen) < 0) return -1;
5140 | ssl_print_data("Plaintext uncompressed", out_str->data, uncomplen);
5141 | *outl = uncomplen;
5142 | }
5143 |
5144 | return 0;
5145 | }
5146 | /* Record decryption glue based on security parameters }}} */
5147 |
5148 |
5149 |
5150 | #ifdef HAVE_LIBGNUTLS1
5151 |
5152 | /* RSA private key file processing {{{ */
5153 | static void
5154 | ssl_find_private_key_by_pubkey(SslDecryptSession *ssl,
5155 | const gnutls_datum_t *subjectPublicKeyInfo)
5156 | {
5157 | gnutls_pubkey_t pubkey = NULL((void*)0);
5158 | cert_key_id_t key_id;
5159 | size_t key_id_len = sizeof(key_id);
5160 | int r;
5161 |
5162 | if (!subjectPublicKeyInfo->size) {
5163 | ssl_debug_printf("%s: could not find SubjectPublicKeyInfo\n", G_STRFUNC((const char*) (__func__)));
5164 | return;
5165 | }
5166 |
5167 | r = gnutls_pubkey_init(&pubkey);
5168 | if (r < 0) {
5169 | ssl_debug_printf("%s: failed to init pubkey: %s\n",
5170 | G_STRFUNC((const char*) (__func__)), gnutls_strerror(r));
5171 | return;
5172 | }
5173 |
5174 | r = gnutls_pubkey_import(pubkey, subjectPublicKeyInfo, GNUTLS_X509_FMT_DER);
5175 | if (r < 0) {
5176 | ssl_debug_printf("%s: failed to import pubkey from handshake: %s\n",
5177 | G_STRFUNC((const char*) (__func__)), gnutls_strerror(r));
5178 | goto end;
5179 | }
5180 |
5181 | if (gnutls_pubkey_get_pk_algorithm(pubkey, NULL((void*)0)) != GNUTLS_PK_RSA) {
5182 | ssl_debug_printf("%s: Not a RSA public key - ignoring.\n", G_STRFUNC((const char*) (__func__)));
5183 | goto end;
5184 | }
5185 |
5186 | /* Generate a 20-byte SHA-1 hash. */
5187 | r = gnutls_pubkey_get_key_id(pubkey, 0, key_id.key_id, &key_id_len);
5188 | if (r < 0) {
5189 | ssl_debug_printf("%s: failed to extract key id from pubkey: %s\n",
5190 | G_STRFUNC((const char*) (__func__)), gnutls_strerror(r));
5191 | goto end;
5192 | }
5193 |
5194 | if (key_id_len != sizeof(key_id)) {
5195 | ssl_debug_printf("%s: expected Key ID size %zu, got %zu\n",
5196 | G_STRFUNC((const char*) (__func__)), sizeof(key_id), key_id_len);
5197 | goto end;
5198 | }
5199 |
5200 | ssl_print_data("Certificate.KeyID", key_id.key_id, key_id_len);
5201 | ssl->cert_key_id = wmem_new(wmem_file_scope(), cert_key_id_t)((cert_key_id_t*)wmem_alloc((wmem_file_scope()), sizeof(cert_key_id_t )));
5202 | *ssl->cert_key_id = key_id;
5203 |
5204 | end:
5205 | gnutls_pubkey_deinit(pubkey);
5206 | }
5207 |
5208 | /* RSA private key file processing }}} */
5209 | #endif /* HAVE_LIBGNUTLS */
5210 |
5211 | /*--- Start of dissector-related code below ---*/
5212 |
5213 | /* This is not a "protocol" but ensures that this gets called during
5214 | * the handoff stage. */
5215 | void proto_reg_handoff_tls_utils(void);
5216 |
5217 | static dissector_handle_t base_tls_handle;
5218 | static dissector_handle_t dtls_handle;
5219 |
5220 | void
5221 | proto_reg_handoff_tls_utils(void)
5222 | {
5223 | base_tls_handle = find_dissector("tls");
5224 | dtls_handle = find_dissector("dtls");
5225 | }
5226 |
5227 | /* Look up an existing SslDecryptSession without creating one. Returns NULL if
5228 | * no session exists. */
5229 | SslDecryptSession *
5230 | tls_get_session(conversation_t *conversation, int proto_ssl, uint8_t curr_layer_num)
5231 | {
5232 | void *conv_data;
5233 | wmem_map_t *session_map;
5234 |
5235 | if (!conversation)
5236 | return NULL((void*)0);
5237 |
5238 | conv_data = conversation_get_proto_data(conversation, proto_ssl);
5239 | if (conv_data == NULL((void*)0))
5240 | return NULL((void*)0);
5241 |
5242 | session_map = (wmem_map_t *)conv_data;
5243 |
5244 | return (SslDecryptSession *)wmem_map_lookup(session_map,
5245 | GUINT_TO_POINTER((unsigned)curr_layer_num)((gpointer) (gulong) ((unsigned)curr_layer_num)));
5246 |
5247 | }
5248 |
5249 | /* get ssl data for this session. if no ssl data is found allocate a new one*/
5250 | SslDecryptSession *
5251 | ssl_get_session(conversation_t *conversation, dissector_handle_t tls_handle, uint8_t curr_layer_num)
5252 | {
5253 | void *conv_data;
5254 | SslDecryptSession *ssl_session;
5255 | int proto_ssl;
5256 | wmem_map_t *session_map;
5257 |
5258 | /* Note proto_ssl is tls for either the main tls_handle or the
5259 | * tls13_handshake handle used by QUIC. */
5260 | proto_ssl = dissector_handle_get_protocol_index(tls_handle);
5261 | conv_data = conversation_get_proto_data(conversation, proto_ssl);
5262 |
5263 | /* For nested TLS support, we store a wmem map of sessions indexed by layer number.
5264 | * Using wmem_file_scope ensures the map is freed when the capture file is closed,
5265 | * preventing memory leaks on capture reload. */
5266 | if (conv_data != NULL((void*)0)) {
5267 | session_map = (wmem_map_t *)conv_data;
5268 | ssl_session = (SslDecryptSession *)wmem_map_lookup(session_map, GUINT_TO_POINTER((unsigned)curr_layer_num)((gpointer) (gulong) ((unsigned)curr_layer_num)));
5269 | if (ssl_session != NULL((void*)0)) {
5270 | return ssl_session;
5271 | }
5272 | } else {
5273 | /* Create a new wmem map to store sessions by layer number */
5274 | session_map = wmem_map_new(wmem_file_scope(), g_direct_hash, g_direct_equal);
5275 | conversation_add_proto_data(conversation, proto_ssl, session_map);
5276 | }
5277 |
5278 | /* no previous SSL conversation info for this layer, initialize it. */
5279 | ssl_session = wmem_new0(wmem_file_scope(), SslDecryptSession)((SslDecryptSession*)wmem_alloc0((wmem_file_scope()), sizeof( SslDecryptSession)));
5280 |
5281 | /* data_len is the part that is meaningful, not the allocated length */
5282 | ssl_session->master_secret.data_len = 0;
5283 | ssl_session->master_secret.data = ssl_session->_master_secret;
5284 | ssl_session->session_id.data_len = 0;
5285 | ssl_session->session_id.data = ssl_session->_session_id;
5286 | ssl_session->client_random.data_len = 0;
5287 | ssl_session->client_random.data = ssl_session->_client_random;
5288 | ssl_session->server_random.data_len = 0;
5289 | ssl_session->server_random.data = ssl_session->_server_random;
5290 | ssl_session->session_ticket.data_len = 0;
5291 | ssl_session->session_ticket.data = NULL((void*)0); /* will be re-alloced as needed */
5292 | ssl_session->server_data_for_iv.data_len = 0;
5293 | ssl_session->server_data_for_iv.data = ssl_session->_server_data_for_iv;
5294 | ssl_session->client_data_for_iv.data_len = 0;
5295 | ssl_session->client_data_for_iv.data = ssl_session->_client_data_for_iv;
5296 | ssl_session->app_data_segment.data = NULL((void*)0);
5297 | ssl_session->app_data_segment.data_len = 0;
5298 | ssl_session->handshake_data.data=NULL((void*)0);
5299 | ssl_session->handshake_data.data_len=0;
5300 | ssl_session->ech_transcript.data=NULL((void*)0);
5301 | ssl_session->ech_transcript.data_len=0;
5302 |
5303 | /* Initialize parameters which are not necessary specific to decryption. */
5304 | ssl_session->session.version = SSL_VER_UNKNOWN0;
5305 | clear_address(&ssl_session->session.srv_addr);
5306 | ssl_session->session.srv_ptype = PT_NONE;
5307 | ssl_session->session.srv_port = 0;
5308 | ssl_session->session.dtls13_current_epoch[0] = ssl_session->session.dtls13_current_epoch[1] = 0;
5309 | ssl_session->session.dtls13_next_seq_num[0] = ssl_session->session.dtls13_next_seq_num[1] = 0;
5310 | ssl_session->session.client_random.data_len = 0;
5311 | ssl_session->session.client_random.data = ssl_session->session._client_random;
5312 | memset(ssl_session->session.ech_confirmation, 0, sizeof(ssl_session->session.ech_confirmation));
5313 | memset(ssl_session->session.hrr_ech_confirmation, 0, sizeof(ssl_session->session.hrr_ech_confirmation));
5314 | memset(ssl_session->session.first_ech_auth_tag, 0, sizeof(ssl_session->session.first_ech_auth_tag));
5315 | ssl_session->session.ech = false0;
5316 | ssl_session->session.hrr_ech_declined = false0;
5317 | ssl_session->session.first_ch_ech_frame = 0;
5318 |
5319 | /* We want to increment the stream count for the normal tls handle and
5320 | * dtls handle, but presumably not for the tls13_handshake handle used
5321 | * by QUIC (it has its own Follow Stream handling, and the QUIC stream
5322 | * doesn't get sent to the TLS follow tap.)
5323 | */
5324 | if (tls_handle == base_tls_handle) {
5325 | ssl_session->session.stream = tls_increment_stream_count();
5326 | } else if (tls_handle == dtls_handle) {
5327 | ssl_session->session.stream = dtls_increment_stream_count();
5328 | }
5329 |
5330 | /* Store the session in the wmem map indexed by layer number */
5331 | wmem_map_insert(session_map, GUINT_TO_POINTER((unsigned)curr_layer_num)((gpointer) (gulong) ((unsigned)curr_layer_num)), ssl_session);
5332 |
5333 | return ssl_session;
5334 | }
5335 |
5336 | void ssl_reset_session(SslSession *session, SslDecryptSession *ssl, bool_Bool is_client)
5337 | {
5338 | if (ssl) {
5339 | /* Ensure that secrets are not restored using stale identifiers. Split
5340 | * between client and server in case the packets somehow got out of order. */
5341 | int clear_flags = SSL_HAVE_SESSION_KEY(1<<3) | SSL_MASTER_SECRET(1<<5) | SSL_PRE_MASTER_SECRET(1<<6);
5342 |
5343 | if (is_client) {
5344 | clear_flags |= SSL_CLIENT_EXTENDED_MASTER_SECRET(1<<7);
5345 | ssl->session_id.data_len = 0;
5346 | ssl->session_ticket.data_len = 0;
5347 | ssl->master_secret.data_len = 0;
5348 | ssl->client_random.data_len = 0;
5349 | ssl->has_early_data = false0;
5350 | if (ssl->handshake_data.data_len > 0) {
5351 | // The EMS handshake hash starts with at the Client Hello,
5352 | // ensure that any messages before it are forgotten.
5353 | wmem_free(wmem_file_scope(), ssl->handshake_data.data);
5354 | ssl->handshake_data.data = NULL((void*)0);
5355 | ssl->handshake_data.data_len = 0;
5356 | }
5357 | } else {
5358 | clear_flags |= SSL_SERVER_EXTENDED_MASTER_SECRET(1<<8) | SSL_NEW_SESSION_TICKET(1<<10);
5359 | ssl->server_random.data_len = 0;
5360 | ssl->pre_master_secret.data_len = 0;
5361 | #ifdef HAVE_LIBGNUTLS1
5362 | ssl->cert_key_id = NULL((void*)0);
5363 | #endif
5364 | ssl->has_psk = false0;
5365 | ssl->has_key_share = false0;
5366 | // There is no point in clearing the PSK when resetting the session,
5367 | // we only store one global PSK in the prefs.
5368 | //ssl->psk.data_len = 0;
5369 | }
5370 |
5371 | if (ssl->state & clear_flags) {
5372 | ssl_debug_printf("%s detected renegotiation, clearing 0x%02x (%s side)\n",
5373 | G_STRFUNC((const char*) (__func__)), ssl->state & clear_flags, is_client ? "client" : "server");
5374 | ssl->state &= ~clear_flags;
5375 | }
5376 | }
5377 |
5378 | /* These flags might be used for non-decryption purposes and may affect the
5379 | * dissection, so reset them as well. */
5380 | if (is_client) {
5381 | session->client_cert_type = 0;
5382 | } else {
5383 | session->compression = 0;
5384 | session->server_cert_type = 0;
5385 | /* session->is_session_resumed is already handled in the ServerHello dissection. */
5386 | }
5387 | session->dtls13_next_seq_num[0] = session->dtls13_next_seq_num[1] = 0;
5388 | session->dtls13_current_epoch[0] = session->dtls13_current_epoch[1] = 0;
5389 | }
5390 |
5391 | void
5392 | tls_set_appdata_dissector(dissector_handle_t tls_handle, packet_info *pinfo,
5393 | dissector_handle_t app_handle)
5394 | {
5395 | conversation_t *conversation;
5396 | SslSession *session;
5397 |
5398 | /* Ignore if the TLS or other dissector is disabled. */
5399 | /* XXX - find_dissector still works if a dissector is disabled,
5400 | * this would be if the dissector isn't registered at all or the
5401 | * caller is calling this with explicit NULL. */
5402 | if (!tls_handle || !app_handle)
5403 | return;
5404 |
5405 | int proto = dissector_handle_get_protocol_index(tls_handle);
5406 | uint8_t curr_layer_num = p_get_proto_depth(pinfo, proto);
5407 |
5408 | conversation = find_or_create_conversation(pinfo);
5409 | session = &ssl_get_session(conversation, tls_handle, curr_layer_num)->session;
5410 | session->app_handle = app_handle;
5411 | }
5412 |
5413 | static uint32_t
5414 | ssl_starttls(dissector_handle_t tls_handle, packet_info *pinfo,
5415 | dissector_handle_t app_handle, uint32_t last_nontls_frame)
5416 | {
5417 |
5418 | conversation_t *conversation;
5419 | SslSession *session;
5420 |
5421 | /* Ignore if the TLS dissector is disabled. */
5422 | /* XXX - find_dissector still works if a dissector is disabled,
5423 | * this would be if the dissector isn't registered at all (or the
5424 | * caller has an error.) */
5425 | if (!tls_handle)
5426 | return 0;
5427 |
5428 | int proto = dissector_handle_get_protocol_index(tls_handle);
5429 | uint8_t curr_layer_num = p_get_proto_depth(pinfo, proto);
5430 |
5431 | /* The caller should always pass a valid handle to its own dissector. */
5432 | DISSECTOR_ASSERT(app_handle)((void) ((app_handle) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 5432, "app_handle"))));
5433 |
5434 | conversation = find_or_create_conversation(pinfo);
5435 | session = &ssl_get_session(conversation, tls_handle, curr_layer_num)->session;
5436 |
5437 | ssl_debug_printf("%s: old frame %d, app_handle=%p (%s)\n", G_STRFUNC((const char*) (__func__)),
5438 | session->last_nontls_frame,
5439 | (void *)session->app_handle,
5440 | dissector_handle_get_dissector_name(session->app_handle));
5441 | ssl_debug_printf("%s: current frame %d, app_handle=%p (%s)\n", G_STRFUNC((const char*) (__func__)),
5442 | pinfo->num, (void *)app_handle,
5443 | dissector_handle_get_dissector_name(app_handle));
5444 |
5445 | /* Do not switch again if a dissector did it before. */
5446 | if (session->last_nontls_frame) {
5447 | ssl_debug_printf("%s: not overriding previous app handle!\n", G_STRFUNC((const char*) (__func__)));
5448 | return session->last_nontls_frame;
5449 | }
5450 |
5451 | session->app_handle = app_handle;
5452 | /* The TLS dissector should be called first for this conversation. */
5453 | conversation_set_dissector(conversation, tls_handle);
5454 | /* TLS starts after this frame. */
5455 | session->last_nontls_frame = last_nontls_frame;
5456 | return 0;
5457 | }
5458 |
5459 | /* ssl_starttls_ack: mark future frames as encrypted. */
5460 | uint32_t
5461 | ssl_starttls_ack(dissector_handle_t tls_handle, packet_info *pinfo,
5462 | dissector_handle_t app_handle)
5463 | {
5464 | return ssl_starttls(tls_handle, pinfo, app_handle, pinfo->num);
5465 | }
5466 |
5467 | uint32_t
5468 | ssl_starttls_post_ack(dissector_handle_t tls_handle, packet_info *pinfo,
5469 | dissector_handle_t app_handle)
5470 | {
5471 | return ssl_starttls(tls_handle, pinfo, app_handle, pinfo->num - 1);
5472 | }
5473 |
5474 | dissector_handle_t
5475 | ssl_find_appdata_dissector(const char *name)
5476 | {
5477 | /* Accept 'http' for backwards compatibility and sanity. */
5478 | if (!strcmp(name, "http"))
5479 | name = "http-over-tls";
5480 | /* XXX - Should this check to see if the dissector is actually added for
5481 | * Decode As in the appropriate table?
5482 | */
5483 | return find_dissector(name);
5484 | }
5485 |
5486 | /* Functions for TLS/DTLS sessions and RSA private keys hashtables. {{{ */
5487 | static int
5488 | ssl_equal (const void *v, const void *v2)
5489 | {
5490 | const StringInfo *val1;
5491 | const StringInfo *val2;
5492 | val1 = (const StringInfo *)v;
5493 | val2 = (const StringInfo *)v2;
5494 |
5495 | if (val1->data_len == val2->data_len &&
5496 | !memcmp(val1->data, val2->data, val2->data_len)) {
5497 | return 1;
5498 | }
5499 | return 0;
5500 | }
5501 |
5502 | static unsigned
5503 | ssl_hash(const void *v)
5504 | {
5505 | const StringInfo* id;
5506 | id = (const StringInfo*) v;
5507 |
5508 | return wmem_strong_hash(id->data, id->data_len);
5509 | }
5510 | /* Functions for TLS/DTLS sessions and RSA private keys hashtables. }}} */
5511 |
5512 | /* Handling of association between tls/dtls ports and clear text protocol. {{{ */
5513 | void
5514 | ssl_association_add(const char* dissector_table_name, dissector_handle_t main_handle, dissector_handle_t subdissector_handle, unsigned port, bool_Bool tcp)
5515 | {
5516 | DISSECTOR_ASSERT(main_handle)((void) ((main_handle) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 5516, "main_handle"))));
5517 | DISSECTOR_ASSERT(subdissector_handle)((void) ((subdissector_handle) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 5517, "subdissector_handle"))));
5518 | /* Registration is required for Export PDU feature to work properly. */
5519 | DISSECTOR_ASSERT_HINT(dissector_handle_get_dissector_name(subdissector_handle),((void) ((dissector_handle_get_dissector_name(subdissector_handle )) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\" (%s)" , "epan/dissectors/packet-tls-utils.c", 5520, "dissector_handle_get_dissector_name(subdissector_handle)" , "SSL appdata dissectors must register with register_dissector()!" ))))
5520 | "SSL appdata dissectors must register with register_dissector()!")((void) ((dissector_handle_get_dissector_name(subdissector_handle )) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\" (%s)" , "epan/dissectors/packet-tls-utils.c", 5520, "dissector_handle_get_dissector_name(subdissector_handle)" , "SSL appdata dissectors must register with register_dissector()!" ))));
5521 | ssl_debug_printf("association_add %s port %d handle %p\n", dissector_table_name, port, (void *)subdissector_handle);
5522 |
5523 | if (port) {
5524 | dissector_add_uint(dissector_table_name, port, subdissector_handle);
5525 | if (tcp)
5526 | dissector_add_uint("tcp.port", port, main_handle);
5527 | else
5528 | dissector_add_uint("udp.port", port, main_handle);
5529 | dissector_add_uint("sctp.port", port, main_handle);
5530 | } else {
5531 | dissector_add_for_decode_as(dissector_table_name, subdissector_handle);
5532 | }
5533 | }
5534 |
5535 | void
5536 | ssl_association_remove(const char* dissector_table_name, dissector_handle_t main_handle, dissector_handle_t subdissector_handle, unsigned port, bool_Bool tcp)
5537 | {
5538 | ssl_debug_printf("ssl_association_remove removing %s %u - handle %p\n",
5539 | tcp?"TCP":"UDP", port, (void *)subdissector_handle);
5540 | if (main_handle) {
5541 | dissector_delete_uint(tcp?"tcp.port":"udp.port", port, main_handle);
5542 | dissector_delete_uint("sctp.port", port, main_handle);
5543 | }
5544 |
5545 | if (port) {
5546 | dissector_delete_uint(dissector_table_name, port, subdissector_handle);
5547 | }
5548 | }
5549 |
5550 | void
5551 | ssl_set_server(SslSession *session, address *addr, port_type ptype, uint32_t port)
5552 | {
5553 | copy_address_wmem(wmem_file_scope(), &session->srv_addr, addr);
5554 | session->srv_ptype = ptype;
5555 | session->srv_port = port;
5556 | }
5557 |
5558 | int
5559 | ssl_packet_from_server(SslSession *session, dissector_table_t table, const packet_info *pinfo)
5560 | {
5561 | int ret;
5562 | if (session && session->srv_addr.type != AT_NONE) {
5563 | ret = (session->srv_ptype == pinfo->ptype) &&
5564 | (session->srv_port == pinfo->srcport) &&
5565 | addresses_equal(&session->srv_addr, &pinfo->src);
5566 | } else {
5567 | ret = (dissector_get_uint_handle(table, pinfo->srcport) != 0);
5568 | }
5569 |
5570 | ssl_debug_printf("packet_from_server: is from server - %s\n", (ret)?"TRUE":"FALSE");
5571 | return ret;
5572 | }
5573 | /* Handling of association between tls/dtls ports and clear text protocol. }}} */
5574 |
5575 |
5576 | /* Links SSL records with the real packet data. {{{ */
5577 | SslPacketInfo *
5578 | tls_add_packet_info(int proto, packet_info *pinfo, uint8_t curr_layer_num_ssl)
5579 | {
5580 | SslPacketInfo *pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, curr_layer_num_ssl);
5581 | if (!pi) {
5582 | pi = wmem_new0(wmem_file_scope(), SslPacketInfo)((SslPacketInfo*)wmem_alloc0((wmem_file_scope()), sizeof(SslPacketInfo )));
5583 | pi->srcport = pinfo->srcport;
5584 | pi->destport = pinfo->destport;
5585 | conversation_t *conv = find_or_create_conversation_strat(pinfo);
5586 | SslDecryptSession *ssl_session = tls_get_session(conv, proto, curr_layer_num_ssl);
5587 | if (ssl_session) {
5588 | /* This can also be called by the QUIC TLS1.3 handshake only
5589 | * dissector. That is not associated with a session, or a stream,
5590 | * and doesn't need the information for Follow or Decode As. */
5591 | pi->stream = ssl_session->session.stream;
5592 | }
5593 | p_add_proto_data(wmem_file_scope(), pinfo, proto, curr_layer_num_ssl, pi);
5594 | }
5595 |
5596 | return pi;
5597 | }
5598 |
5599 | /**
5600 | * Remembers the decrypted TLS record fragment (TLSInnerPlaintext in TLS 1.3) to
5601 | * avoid the need for a decoder in the second pass. Additionally, it remembers
5602 | * sequence numbers (for reassembly and Follow TLS Stream).
5603 | *
5604 | * @param proto The protocol identifier (proto_ssl or proto_dtls).
5605 | * @param pinfo The packet where the record originates from.
5606 | * @param plain_data Decrypted plaintext to store in the record.
5607 | * @param plain_data_len Total length of the plaintext.
5608 | * @param content_len Length of the plaintext section corresponding to the record content.
5609 | * @param record_id The identifier for this record within the current packet.
5610 | * @param flow Information about sequence numbers, etc.
5611 | * @param type TLS Content Type (such as handshake or application_data).
5612 | * @param curr_layer_num_ssl The layer identifier for this TLS session.
5613 | */
5614 | void
5615 | ssl_add_record_info(int proto, packet_info *pinfo,
5616 | const unsigned char *plain_data, int plain_data_len, int content_len,
5617 | int record_id, SslFlow *flow, ContentType type, uint8_t curr_layer_num_ssl,
5618 | uint64_t record_seq)
5619 | {
5620 | SslRecordInfo* rec, **prec;
5621 | SslPacketInfo *pi = tls_add_packet_info(proto, pinfo, curr_layer_num_ssl);
5622 |
5623 | ws_assert(content_len <= plain_data_len)do { if ((1) && !(content_len <= plain_data_len)) ws_log_fatal_full ("", LOG_LEVEL_ERROR, "epan/dissectors/packet-tls-utils.c", 5623 , __func__, "assertion failed: %s", "content_len <= plain_data_len" ); } while (0);
5624 |
5625 | rec = wmem_new(wmem_file_scope(), SslRecordInfo)((SslRecordInfo*)wmem_alloc((wmem_file_scope()), sizeof(SslRecordInfo )));
5626 | rec->plain_data = (unsigned char *)wmem_memdup(wmem_file_scope(), plain_data, plain_data_len);
5627 | rec->plain_data_len = plain_data_len;
5628 | rec->content_len = content_len;
5629 | rec->id = record_id;
5630 | rec->type = type;
5631 | rec->next = NULL((void*)0);
5632 | rec->record_seq = record_seq;
5633 |
5634 | if (flow && type == SSL_ID_APP_DATA) {
5635 | rec->seq = flow->byte_seq;
5636 | rec->flow = flow;
5637 | flow->byte_seq += content_len;
5638 | ssl_debug_printf("%s stored decrypted record seq=%d nxtseq=%d flow=%p\n",
5639 | G_STRFUNC((const char*) (__func__)), rec->seq, rec->seq + content_len, (void*)flow);
5640 | }
5641 |
5642 | /* Remember decrypted records. */
5643 | prec = &pi->records;
5644 | while (*prec) prec = &(*prec)->next;
5645 | *prec = rec;
5646 | }
5647 |
5648 | /* search in packet data for the specified id; return a newly created tvb for the associated data */
5649 | tvbuff_t*
5650 | ssl_get_record_info(tvbuff_t *parent_tvb, int proto, packet_info *pinfo, int record_id, uint8_t curr_layer_num_ssl, SslRecordInfo **matched_record)
5651 | {
5652 | SslRecordInfo* rec;
5653 | SslPacketInfo* pi;
5654 | pi = (SslPacketInfo *)p_get_proto_data(wmem_file_scope(), pinfo, proto, curr_layer_num_ssl);
5655 |
5656 | if (!pi)
5657 | return NULL((void*)0);
5658 |
5659 | for (rec = pi->records; rec; rec = rec->next)
5660 | if (rec->id == record_id) {
5661 | *matched_record = rec;
5662 | /* link new real_data_tvb with a parent tvb so it is freed when frame dissection is complete */
5663 | return tvb_new_child_real_data(parent_tvb, rec->plain_data, rec->plain_data_len, rec->plain_data_len);
5664 | }
5665 |
5666 | return NULL((void*)0);
5667 | }
5668 | /* Links SSL records with the real packet data. }}} */
5669 |
5670 | /* initialize/reset per capture state data (ssl sessions cache). {{{ */
5671 | void
5672 | ssl_common_init(ssl_master_key_map_t *mk_map,
5673 | StringInfo *decrypted_data, StringInfo *compressed_data)
5674 | {
5675 | mk_map->session = g_hash_table_new(ssl_hash, ssl_equal);
5676 | mk_map->tickets = g_hash_table_new(ssl_hash, ssl_equal);
5677 | mk_map->crandom = g_hash_table_new(ssl_hash, ssl_equal);
5678 | mk_map->pre_master = g_hash_table_new(ssl_hash, ssl_equal);
5679 | mk_map->pms = g_hash_table_new(ssl_hash, ssl_equal);
5680 | mk_map->tls13_client_early = g_hash_table_new(ssl_hash, ssl_equal);
5681 | mk_map->tls13_client_handshake = g_hash_table_new(ssl_hash, ssl_equal);
5682 | mk_map->tls13_server_handshake = g_hash_table_new(ssl_hash, ssl_equal);
5683 | mk_map->tls13_client_appdata = g_hash_table_new(ssl_hash, ssl_equal);
5684 | mk_map->tls13_server_appdata = g_hash_table_new(ssl_hash, ssl_equal);
5685 | mk_map->tls13_early_exporter = g_hash_table_new(ssl_hash, ssl_equal);
5686 | mk_map->tls13_exporter = g_hash_table_new(ssl_hash, ssl_equal);
5687 |
5688 | mk_map->ech_secret = g_hash_table_new(ssl_hash, ssl_equal);
5689 | mk_map->ech_config = g_hash_table_new(ssl_hash, ssl_equal);
5690 |
5691 | mk_map->used_crandom = g_hash_table_new(ssl_hash, ssl_equal);
5692 |
5693 | ssl_data_alloc(decrypted_data, 32);
5694 | ssl_data_alloc(compressed_data, 32);
5695 | }
5696 |
5697 | void
5698 | ssl_common_cleanup(ssl_master_key_map_t *mk_map, FILE **ssl_keylog_file,
5699 | StringInfo *decrypted_data, StringInfo *compressed_data)
5700 | {
5701 | g_hash_table_destroy(mk_map->session);
5702 | g_hash_table_destroy(mk_map->tickets);
5703 | g_hash_table_destroy(mk_map->crandom);
5704 | g_hash_table_destroy(mk_map->pre_master);
5705 | g_hash_table_destroy(mk_map->pms);
5706 | g_hash_table_destroy(mk_map->tls13_client_early);
5707 | g_hash_table_destroy(mk_map->tls13_client_handshake);
5708 | g_hash_table_destroy(mk_map->tls13_server_handshake);
5709 | g_hash_table_destroy(mk_map->tls13_client_appdata);
5710 | g_hash_table_destroy(mk_map->tls13_server_appdata);
5711 | g_hash_table_destroy(mk_map->tls13_early_exporter);
5712 | g_hash_table_destroy(mk_map->tls13_exporter);
5713 |
5714 | g_hash_table_destroy(mk_map->ech_secret);
5715 | g_hash_table_destroy(mk_map->ech_config);
5716 |
5717 | g_hash_table_destroy(mk_map->used_crandom);
5718 |
5719 | g_free(decrypted_data->data)(__builtin_object_size ((decrypted_data->data), 0) != ((size_t ) - 1)) ? g_free_sized (decrypted_data->data, __builtin_object_size ((decrypted_data->data), 0)) : (g_free) (decrypted_data-> data);
5720 | g_free(compressed_data->data)(__builtin_object_size ((compressed_data->data), 0) != ((size_t ) - 1)) ? g_free_sized (compressed_data->data, __builtin_object_size ((compressed_data->data), 0)) : (g_free) (compressed_data ->data);
5721 |
5722 | /* close the previous keylog file now that the cache are cleared, this
5723 | * allows the cache to be filled with the full keylog file contents. */
5724 | if (*ssl_keylog_file) {
5725 | fclose(*ssl_keylog_file);
5726 | *ssl_keylog_file = NULL((void*)0);
5727 | }
5728 | }
5729 | /* }}} */
5730 |
5731 | /* parse ssl related preferences (private keys and ports association strings) */
5732 | #if defined(HAVE_LIBGNUTLS1)
5733 | /* Load a single RSA key file item from preferences. {{{ */
5734 | void
5735 | ssl_parse_key_list(const ssldecrypt_assoc_t *uats, GHashTable *key_hash, const char* dissector_table_name, dissector_handle_t main_handle, bool_Bool tcp)
5736 | {
5737 | gnutls_x509_privkey_t x509_priv_key;
5738 | gnutls_privkey_t priv_key = NULL((void*)0);
5739 | FILE* fp = NULL((void*)0);
5740 | int ret;
5741 | size_t key_id_len = 20;
5742 | unsigned char *key_id = NULL((void*)0);
5743 | char *err = NULL((void*)0);
5744 | dissector_handle_t handle;
5745 | /* try to load keys file first */
5746 | fp = ws_fopenfopen(uats->keyfile, "rb");
5747 | if (!fp) {
5748 | report_open_failure(uats->keyfile, errno(*__errno_location ()), false0);
5749 | return;
5750 | }
5751 |
5752 | if ((int)strlen(uats->password) == 0) {
5753 | x509_priv_key = rsa_load_pem_key(fp, &err);
5754 | } else {
5755 | x509_priv_key = rsa_load_pkcs12(fp, uats->password, &err);
5756 | }
5757 | fclose(fp);
5758 |
5759 | if (!x509_priv_key) {
5760 | if (err) {
5761 | report_failure("Can't load private key from %s: %s",
5762 | uats->keyfile, err);
5763 | g_free(err)(__builtin_object_size ((err), 0) != ((size_t) - 1)) ? g_free_sized (err, __builtin_object_size ((err), 0)) : (g_free) (err);
5764 | } else
5765 | report_failure("Can't load private key from %s: unknown error",
5766 | uats->keyfile);
5767 | return;
5768 | }
5769 | if (err) {
5770 | report_failure("Load of private key from %s \"succeeded\" with error %s",
5771 | uats->keyfile, err);
5772 | g_free(err)(__builtin_object_size ((err), 0) != ((size_t) - 1)) ? g_free_sized (err, __builtin_object_size ((err), 0)) : (g_free) (err);
5773 | }
5774 |
5775 | gnutls_privkey_init(&priv_key);
5776 | ret = gnutls_privkey_import_x509(priv_key, x509_priv_key,
5777 | GNUTLS_PRIVKEY_IMPORT_AUTO_RELEASE|GNUTLS_PRIVKEY_IMPORT_COPY);
5778 | if (ret < 0) {
5779 | report_failure("Can't convert private key %s: %s",
5780 | uats->keyfile, gnutls_strerror(ret));
5781 | goto end;
5782 | }
5783 |
5784 | key_id = (unsigned char *) g_malloc0(key_id_len);
5785 | ret = gnutls_x509_privkey_get_key_id(x509_priv_key, 0, key_id, &key_id_len);
5786 | if (ret < 0) {
5787 | report_failure("Can't calculate public key ID for %s: %s",
5788 | uats->keyfile, gnutls_strerror(ret));
5789 | goto end;
5790 | }
5791 | ssl_print_data("KeyID", key_id, key_id_len);
5792 | if (key_id_len != 20) {
5793 | report_failure("Expected Key ID size %u for %s, got %zu", 20,
5794 | uats->keyfile, key_id_len);
5795 | goto end;
5796 | }
5797 |
5798 | g_hash_table_replace(key_hash, key_id, priv_key);
5799 | key_id = NULL((void*)0); /* used in key_hash, do not free. */
5800 | priv_key = NULL((void*)0);
5801 | ssl_debug_printf("ssl_init private key file %s successfully loaded.\n", uats->keyfile);
5802 |
5803 | handle = ssl_find_appdata_dissector(uats->protocol);
5804 | if (handle) {
5805 | /* Port to subprotocol mapping */
5806 | uint16_t port = 0;
5807 | if (ws_strtou16(uats->port, NULL((void*)0), &port)) {
5808 | if (port > 0) {
5809 | ssl_debug_printf("ssl_init port '%d' filename '%s' password(only for p12 file) '%s'\n",
5810 | port, uats->keyfile, uats->password);
5811 |
5812 | ssl_association_add(dissector_table_name, main_handle, handle, port, tcp);
5813 | }
5814 | } else {
5815 | if (strcmp(uats->port, "start_tls"))
5816 | ssl_debug_printf("invalid ssl_init_port: %s\n", uats->port);
5817 | }
5818 | }
5819 |
5820 | end:
5821 | gnutls_x509_privkey_deinit(x509_priv_key);
5822 | gnutls_privkey_deinit(priv_key);
5823 | g_free(key_id)(__builtin_object_size ((key_id), 0) != ((size_t) - 1)) ? g_free_sized (key_id, __builtin_object_size ((key_id), 0)) : (g_free) (key_id );
5824 | }
5825 | /* }}} */
5826 | #endif
5827 |
5828 |
5829 | /* Store/load a known (pre-)master secret from/for this SSL session. {{{ */
5830 | /** store a known (pre-)master secret into cache */
5831 | static void
5832 | ssl_save_master_key(const char *label, GHashTable *ht, StringInfo *key,
5833 | StringInfo *mk)
5834 | {
5835 | StringInfo *ht_key, *master_secret;
5836 |
5837 | if (key->data_len == 0) {
5838 | ssl_debug_printf("%s: not saving empty %s!\n", G_STRFUNC((const char*) (__func__)), label);
5839 | return;
5840 | }
5841 |
5842 | if (mk->data_len == 0) {
5843 | ssl_debug_printf("%s not saving empty (pre-)master secret for %s!\n",
5844 | G_STRFUNC((const char*) (__func__)), label);
5845 | return;
5846 | }
5847 |
5848 | ht_key = ssl_data_clone(key);
5849 | master_secret = ssl_data_clone(mk);
5850 | g_hash_table_insert(ht, ht_key, master_secret);
5851 |
5852 | ssl_debug_printf("%s inserted (pre-)master secret for %s\n", G_STRFUNC((const char*) (__func__)), label);
5853 | ssl_print_string("stored key", ht_key);
5854 | ssl_print_string("stored (pre-)master secret", master_secret);
5855 | }
5856 |
5857 | /** restore a (pre-)master secret given some key in the cache */
5858 | static bool_Bool
5859 | ssl_restore_master_key(SslDecryptSession *ssl, const char *label,
5860 | bool_Bool is_pre_master, GHashTable *ht, StringInfo *key)
5861 | {
5862 | StringInfo *ms;
5863 |
5864 | if (key->data_len == 0) {
5865 | ssl_debug_printf("%s can't restore %smaster secret using an empty %s\n",
5866 | G_STRFUNC((const char*) (__func__)), is_pre_master ? "pre-" : "", label);
5867 | return false0;
5868 | }
5869 |
5870 | ms = (StringInfo *)g_hash_table_lookup(ht, key);
5871 | if (!ms) {
5872 | ssl_debug_printf("%s can't find %smaster secret by %s\n", G_STRFUNC((const char*) (__func__)),
5873 | is_pre_master ? "pre-" : "", label);
5874 | return false0;
5875 | }
5876 |
5877 | /* (pre)master secret found, clear knowledge of other keys and set it in the
5878 | * current conversation */
5879 | ssl->state &= ~(SSL_MASTER_SECRET(1<<5) | SSL_PRE_MASTER_SECRET(1<<6) |
5880 | SSL_HAVE_SESSION_KEY(1<<3));
5881 | if (is_pre_master) {
5882 | /* unlike master secret, pre-master secret has a variable size (48 for
5883 | * RSA, varying for PSK) and is therefore not statically allocated */
5884 | ssl->pre_master_secret.data = (unsigned char *) wmem_alloc(wmem_file_scope(),
5885 | ms->data_len);
5886 | ssl_data_set(&ssl->pre_master_secret, ms->data, ms->data_len);
5887 | ssl->state |= SSL_PRE_MASTER_SECRET(1<<6);
5888 | } else {
5889 | ssl_data_set(&ssl->master_secret, ms->data, ms->data_len);
5890 | ssl->state |= SSL_MASTER_SECRET(1<<5);
5891 | }
5892 | ssl_debug_printf("%s %smaster secret retrieved using %s\n", G_STRFUNC((const char*) (__func__)),
5893 | is_pre_master ? "pre-" : "", label);
5894 | ssl_print_string(label, key);
5895 | ssl_print_string("(pre-)master secret", ms);
5896 | return true1;
5897 | }
5898 | /* Store/load a known (pre-)master secret from/for this SSL session. }}} */
5899 |
5900 | /* Should be called when all parameters are ready (after ChangeCipherSpec), and
5901 | * the decoder should be attempted to be initialized. {{{*/
5902 | void
5903 | ssl_finalize_decryption(SslDecryptSession *ssl, ssl_master_key_map_t *mk_map)
5904 | {
5905 | if (ssl->session.version == TLSV1DOT3_VERSION0x304) {
5906 | /* TLS 1.3 implementations only provide secrets derived from the master
5907 | * secret which are loaded in tls13_change_key. No master secrets can be
5908 | * loaded here, so just return. */
5909 | return;
5910 | }
5911 | ssl_debug_printf("%s state = 0x%02X\n", G_STRFUNC((const char*) (__func__)), ssl->state);
5912 | if (ssl->state & SSL_HAVE_SESSION_KEY(1<<3)) {
5913 | ssl_debug_printf(" session key already available, nothing to do.\n");
5914 | return;
5915 | }
5916 | if (!(ssl->state & SSL_CIPHER(1<<2))) {
5917 | ssl_debug_printf(" Cipher suite (Server Hello) is missing!\n");
5918 | return;
5919 | }
5920 |
5921 | /* for decryption, there needs to be a master secret (which can be derived
5922 | * from pre-master secret). If missing, try to pick a master key from cache
5923 | * (an earlier packet in the capture or key logfile). */
5924 | if (!(ssl->state & (SSL_MASTER_SECRET(1<<5) | SSL_PRE_MASTER_SECRET(1<<6))) &&
5925 | !ssl_restore_master_key(ssl, "Session ID", false0,
5926 | mk_map->session, &ssl->session_id) &&
5927 | (!ssl->session.is_session_resumed ||
5928 | !ssl_restore_master_key(ssl, "Session Ticket", false0,
5929 | mk_map->tickets, &ssl->session_ticket)) &&
5930 | !ssl_restore_master_key(ssl, "Client Random", false0,
5931 | mk_map->crandom, &ssl->client_random)) {
5932 | if (ssl->cipher_suite->enc != ENC_NULL0x3D) {
5933 | /* how unfortunate, the master secret could not be found */
5934 | ssl_debug_printf(" Cannot find master secret\n");
5935 | return;
5936 | } else {
5937 | ssl_debug_printf(" Cannot find master secret, continuing anyway "
5938 | "because of a NULL cipher\n");
5939 | }
5940 | }
5941 |
5942 | if (ssl_generate_keyring_material(ssl) < 0) {
5943 | ssl_debug_printf("%s can't generate keyring material\n", G_STRFUNC((const char*) (__func__)));
5944 | return;
5945 | }
5946 | /* Save Client Random/ Session ID for "SSL Export Session keys" */
5947 | ssl_save_master_key("Client Random", mk_map->crandom,
5948 | &ssl->client_random, &ssl->master_secret);
5949 | ssl_save_master_key("Session ID", mk_map->session,
5950 | &ssl->session_id, &ssl->master_secret);
5951 | /* Only save the new secrets if the server sent the ticket. The client
5952 | * ticket might have become stale. */
5953 | if (ssl->state & SSL_NEW_SESSION_TICKET(1<<10)) {
5954 | ssl_save_master_key("Session Ticket", mk_map->tickets,
5955 | &ssl->session_ticket, &ssl->master_secret);
5956 | }
5957 | } /* }}} */
5958 |
5959 | static StringInfo*
5960 | tls13_load_secret_from_psk(SslDecryptSession *tls, bool_Bool is_from_server,
5961 | TLSRecordType type)
5962 | {
5963 | /* XXX - In addition to an out-of-bound PSK, we could also save the
5964 | * PSK from a NewSessionTicket; we would also need to compute the
5965 | * resumption_master_secret. */
5966 | if (tls->psk.data_len == 0)
5967 | return NULL((void*)0);
5968 |
5969 | /* We SHOULD associate each PSK with a hash algorithm (e.g., use
5970 | * a UAT instead of a single global PSK string preference, preferably
5971 | * following RFC 9258.) Failing that, RFC 8864 4.2.1 and 9258 say SHA-256
5972 | * SHOULD be used. We will try the negotiated hash algorithm regardless
5973 | * with the PSK, but fall back to SHA-256 for the Early Secret, since
5974 | * that's before the Server Hello completes negotiation.
5975 | */
5976 | const SslDigestAlgo *dig = ssl_cipher_suite_dig(tls->cipher_suite);
5977 | if (type == TLS_SECRET_0RTT_APP && dig == &digests[DIG_NA0x45 - DIG_MD50x40]) {
5978 | dig = &digests[DIG_SHA2560x42 - DIG_MD50x40];
5979 | ssl_debug_printf("%s assuming PSK hash function is %s\n", G_STRFUNC((const char*) (__func__)), dig->name);
5980 | }
5981 |
5982 | int hash_algo = ssl_get_digest_by_name(dig->name);
5983 | if (!hash_algo) {
5984 | ssl_debug_printf("%s can't find hash function %s\n", G_STRFUNC((const char*) (__func__)), dig->name);
5985 | return NULL((void*)0);
5986 | }
5987 |
5988 | /* We can re-use this to store the Pseudo Random Key for each epoch. */
5989 | uint8_t prk[DIGEST_MAX_SIZE48];
5990 | StringInfo prk_string = { prk, dig->len };
5991 | uint8_t *derived_secret;
5992 |
5993 | uint8_t zeroes[DIGEST_MAX_SIZE48];
5994 | memset(zeroes, 0, dig->len);
5995 |
5996 | StringInfo *secret = NULL((void*)0);
5997 | const char *label;
5998 |
5999 | /* PRK = Early Secret */
6000 | hkdf_extract(hash_algo, zeroes, dig->len, tls->psk.data, tls->psk.data_len, prk);
6001 |
6002 | if (type == TLS_SECRET_0RTT_APP) {
6003 | DISSECTOR_ASSERT(!is_from_server)((void) ((!is_from_server) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 6003, "!is_from_server"))));
6004 | label = "c e traffic";
6005 | } else {
6006 | if (!tls13_derive_secret(hash_algo, &prk_string, tls13_hkdf_label_prefix(tls),
6007 | "derived", NULL((void*)0), 0, dig->len, &derived_secret))
6008 | return NULL((void*)0);
6009 |
6010 | /* PRK = Handshake Secret [assume no (EC)DHE.] */
6011 | hkdf_extract(hash_algo, derived_secret, dig->len, zeroes, dig->len, prk);
6012 | wmem_free(NULL((void*)0), derived_secret);
6013 |
6014 | if (type == TLS_SECRET_HANDSHAKE) {
6015 | label = is_from_server ? "s hs traffic" : "c hs traffic";
6016 | } else {
6017 | if (!tls13_derive_secret(hash_algo, &prk_string, tls13_hkdf_label_prefix(tls),
6018 | "derived", NULL((void*)0), 0, dig->len, &derived_secret))
6019 | return NULL((void*)0);
6020 |
6021 | /* PRK = Master Secret */
6022 | hkdf_extract(hash_algo, derived_secret, dig->len, zeroes, dig->len, prk);
6023 | wmem_free(NULL((void*)0), derived_secret);
6024 |
6025 | label = is_from_server ? "s ap traffic" : "c ap traffic";
6026 | }
6027 | }
6028 |
6029 | /* XXX - If Encrypted Client Hello was accepted (do client/server pairs
6030 | * support ECHO with psk_ke?) then we should use ech_transcript instead
6031 | * of handshake_data. Perhaps we should consolidate some of that handling,
6032 | * though note that we would have to keep both transcripts around after
6033 | * the ClientHello until the ServerHello indicated whether ECHO was
6034 | * accepted or not. */
6035 | if (!tls13_derive_secret(hash_algo, &prk_string,
6036 | tls13_hkdf_label_prefix(tls), label,
6037 | tls->handshake_data.data, tls->handshake_data.data_len,
6038 | dig->len, &derived_secret))
6039 | return NULL((void*)0);
6040 |
6041 | secret = wmem_new(wmem_file_scope(), StringInfo)((StringInfo*)wmem_alloc((wmem_file_scope()), sizeof(StringInfo )));
6042 | secret->data = wmem_memdup(wmem_file_scope(), derived_secret, dig->len);
6043 | secret->data_len = dig->len;
6044 | wmem_free(NULL((void*)0), derived_secret);
6045 | return secret;
6046 | }
6047 |
6048 | /* Load the traffic key secret from the keylog file. */
6049 | StringInfo *
6050 | tls13_load_secret(SslDecryptSession *ssl, ssl_master_key_map_t *mk_map,
6051 | bool_Bool is_from_server, TLSRecordType type)
6052 | {
6053 | GHashTable *key_map;
6054 | const char *label;
6055 |
6056 | if (ssl->session.version != TLSV1DOT3_VERSION0x304 && ssl->session.version != DTLSV1DOT3_VERSION0xfefc) {
6057 | ssl_debug_printf("%s TLS version %#x is not 1.3\n", G_STRFUNC((const char*) (__func__)), ssl->session.version);
6058 | return NULL((void*)0);
6059 | }
6060 |
6061 | if (ssl->client_random.data_len == 0) {
6062 | /* May happen if Hello message is missing and Finished is found. */
6063 | ssl_debug_printf("%s missing Client Random\n", G_STRFUNC((const char*) (__func__)));
6064 | return NULL((void*)0);
6065 | }
6066 |
6067 | switch (type) {
6068 | case TLS_SECRET_0RTT_APP:
6069 | DISSECTOR_ASSERT(!is_from_server)((void) ((!is_from_server) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-tls-utils.c" , 6069, "!is_from_server"))));
6070 | label = "CLIENT_EARLY_TRAFFIC_SECRET";
6071 | key_map = mk_map->tls13_client_early;
6072 | break;
6073 | case TLS_SECRET_HANDSHAKE:
6074 | if (is_from_server) {
6075 | label = "SERVER_HANDSHAKE_TRAFFIC_SECRET";
6076 | key_map = mk_map->tls13_server_handshake;
6077 | } else {
6078 | label = "CLIENT_HANDSHAKE_TRAFFIC_SECRET";
6079 | key_map = mk_map->tls13_client_handshake;
6080 | }
6081 | break;
6082 | case TLS_SECRET_APP:
6083 | if (is_from_server) {
6084 | label = "SERVER_TRAFFIC_SECRET_0";
6085 | key_map = mk_map->tls13_server_appdata;
6086 | } else {
6087 | label = "CLIENT_TRAFFIC_SECRET_0";
6088 | key_map = mk_map->tls13_client_appdata;
6089 | }
6090 | break;
6091 | default:
6092 | ws_assert_not_reached()ws_log_fatal_full("", LOG_LEVEL_ERROR, "epan/dissectors/packet-tls-utils.c" , 6092, __func__, "assertion \"not reached\" failed");
6093 | }
6094 |
6095 | /* Transitioning to new keys, mark old ones as unusable. */
6096 | ssl_debug_printf("%s transitioning to new key, old state 0x%02x\n", G_STRFUNC((const char*) (__func__)), ssl->state);
6097 | ssl->state &= ~(SSL_MASTER_SECRET(1<<5) | SSL_PRE_MASTER_SECRET(1<<6) | SSL_HAVE_SESSION_KEY(1<<3));
6098 |
6099 | StringInfo *secret = (StringInfo *)g_hash_table_lookup(key_map, &ssl->client_random);
6100 | if (!secret) {
6101 | secret = tls13_load_secret_from_psk(ssl, is_from_server, type);
6102 | if (secret) {
6103 | ssl_debug_printf("%s Calculated TLS 1.3 traffic secret from PSK.\n", G_STRFUNC((const char*) (__func__)));
6104 | /* Doing this allows us to save the secret as a DSB in a pcapng. */
6105 | g_hash_table_insert(key_map, ssl_data_clone(&ssl->client_random), secret);
6106 | }
6107 | }
6108 | if (!secret) {
6109 | ssl_debug_printf("%s Cannot find %s, decryption impossible\n", G_STRFUNC((const char*) (__func__)), label);
6110 | /* Disable decryption, the keys are invalid. */
6111 | if (is_from_server) {
6112 | ssl->server = NULL((void*)0);
6113 | } else {
6114 | ssl->client = NULL((void*)0);
6115 | }
6116 | return NULL((void*)0);
6117 | }
6118 |
6119 | /* TLS 1.3 secret found, set new keys. */
6120 | ssl_debug_printf("%s Retrieved TLS 1.3 traffic secret.\n", G_STRFUNC((const char*) (__func__)));
6121 | ssl_print_string("Client Random", &ssl->client_random);
6122 | ssl_print_string(label, secret);
6123 | return secret;
6124 | }
6125 |
6126 | /* Load the new key. */
6127 | void
6128 | tls13_change_key(SslDecryptSession *ssl, ssl_master_key_map_t *mk_map,
6129 | bool_Bool is_from_server, TLSRecordType type)
6130 | {
6131 | if (ssl->state & SSL_QUIC_RECORD_LAYER(1<<13)) {
6132 | /*
6133 | * QUIC does not use the TLS record layer for message protection.
6134 | * The required keys will be extracted later by QUIC.
6135 | */
6136 | return;
6137 | }
6138 |
6139 | StringInfo *secret = tls13_load_secret(ssl, mk_map, is_from_server, type);
6140 | if (!secret) {
6141 | if (type != TLS_SECRET_HANDSHAKE) {
6142 | return;
6143 | }
6144 | /*
6145 | * Workaround for when for some reason we don't have the handshake
6146 | * secret but do have the application traffic secret. (#20240)
6147 | * If we can't find the handshake secret, we'll never decrypt the
6148 | * Finished message, so we won't know when to change to the app
6149 | * traffic key, so we do so now.
6150 | */
6151 | type = TLS_SECRET_APP;
6152 | secret = tls13_load_secret(ssl, mk_map, is_from_server, type);
6153 | if (!secret) {
6154 | return;
6155 | }
6156 | }
6157 |
6158 | if (tls13_generate_keys(ssl, secret, is_from_server)) {
6159 | /*
6160 | * Remember the application traffic secret to support Key Update. The
6161 | * other secrets cannot be used for this purpose, so free them.
6162 | */
6163 | SslDecoder *decoder = is_from_server ? ssl->server : ssl->client;
6164 | StringInfo *app_secret = &decoder->app_traffic_secret;
6165 | if (type == TLS_SECRET_APP) {
6166 | app_secret->data = (unsigned char *) wmem_realloc(wmem_file_scope(),
6167 | app_secret->data,
6168 | secret->data_len);
6169 | ssl_data_set(app_secret, secret->data, secret->data_len);
6170 | } else {
6171 | wmem_free(wmem_file_scope(), app_secret->data);
6172 | app_secret->data = NULL((void*)0);
6173 | app_secret->data_len = 0;
6174 | }
6175 | }
6176 | }
6177 |
6178 | /**
6179 | * Update to next application data traffic secret for TLS 1.3. The previous
6180 | * secret should have been set by tls13_change_key.
6181 | */
6182 | void
6183 | tls13_key_update(SslDecryptSession *ssl, bool_Bool is_from_server)
6184 | {
6185 | /* RFC 8446 Section 7.2:
6186 | * application_traffic_secret_N+1 =
6187 | * HKDF-Expand-Label(application_traffic_secret_N,
6188 | * "traffic upd", "", Hash.length)
6189 | *
6190 | * Both application_traffic_secret_N are of the same length (Hash.length).
6191 | */
6192 | const SslCipherSuite *cipher_suite = ssl->cipher_suite;
6193 | SslDecoder *decoder = is_from_server ? ssl->server : ssl->client;
6194 | StringInfo *app_secret = decoder ? &decoder->app_traffic_secret : NULL((void*)0);
6195 | uint8_t tls13_draft_version = ssl->session.tls13_draft_version;
6196 |
6197 | if (!cipher_suite || !app_secret || app_secret->data_len == 0) {
6198 | ssl_debug_printf("%s Cannot perform Key Update due to missing info\n", G_STRFUNC((const char*) (__func__)));
6199 | return;
6200 | }
6201 |
6202 | /*
6203 | * Previous traffic secret is available, so find the hash function,
6204 | * expand the new traffic secret and generate new keys.
6205 | */
6206 | const char *hash_name = ssl_cipher_suite_dig(cipher_suite)->name;
6207 | int hash_algo = ssl_get_digest_by_name(hash_name);
6208 | const unsigned hash_len = app_secret->data_len;
6209 | unsigned char *new_secret;
6210 | const char *label = "traffic upd";
6211 | if (tls13_draft_version && tls13_draft_version < 20) {
6212 | label = "application traffic secret";
6213 | }
6214 | if (!tls13_hkdf_expand_label(hash_algo, app_secret,
6215 | tls13_hkdf_label_prefix(ssl),
6216 | label, hash_len, &new_secret)) {
6217 | ssl_debug_printf("%s traffic_secret_N+1 expansion failed\n", G_STRFUNC((const char*) (__func__)));
6218 | return;
6219 | }
6220 | ssl_data_set(app_secret, new_secret, hash_len);
6221 | if (tls13_generate_keys(ssl, app_secret, is_from_server)) {
6222 | /*
6223 | * Remember the application traffic secret on the new decoder to
6224 | * support another Key Update.
6225 | */
6226 | decoder = is_from_server ? ssl->server : ssl->client;
6227 | app_secret = &decoder->app_traffic_secret;
6228 | app_secret->data = (unsigned char *) wmem_realloc(wmem_file_scope(),
6229 | app_secret->data,
6230 | hash_len);
6231 | ssl_data_set(app_secret, new_secret, hash_len);
6232 | }
6233 | wmem_free(NULL((void*)0), new_secret);
6234 | }
6235 |
6236 | void
6237 | tls_save_crandom(SslDecryptSession *ssl, ssl_master_key_map_t *mk_map)
6238 | {
6239 | if (ssl && (ssl->state & SSL_CLIENT_RANDOM(1<<0))) {
6240 | g_hash_table_add(mk_map->used_crandom, ssl_data_clone(&ssl->client_random));
6241 | }
6242 | }
6243 |
6244 | /** SSL keylog file handling. {{{ */
6245 |
6246 | static GRegex *
6247 | ssl_compile_keyfile_regex(void)
6248 | {
6249 | #define OCTET "(?:[[:xdigit:]]{2})"
6250 | const char *pattern =
6251 | "(?:"
6252 | /* Matches Client Hellos having this Client Random */
6253 | "PMS_CLIENT_RANDOM (?<client_random_pms>" OCTET "{32}) "
6254 | /* Matches first part of encrypted RSA pre-master secret */
6255 | "|RSA (?<encrypted_pmk>" OCTET "{8}) "
6256 | /* Pre-Master-Secret is given, it is 48 bytes for RSA,
6257 | but it can be of any length for DHE */
6258 | ")(?<pms>" OCTET "+)"
6259 | "|(?:"
6260 | /* Matches Server Hellos having a Session ID */
6261 | "RSA Session-ID:(?<session_id>" OCTET "+) Master-Key:"
6262 | /* Matches Client Hellos having this Client Random */
6263 | "|CLIENT_RANDOM (?<client_random>" OCTET "{32}) "
6264 | /* Master-Secret is given, its length is fixed */
6265 | ")(?<master_secret>" OCTET "{" G_STRINGIFY(SSL_MASTER_SECRET_LENGTH)"48" "})"
6266 | "|(?"
6267 | /* TLS 1.3 Client Random to Derived Secrets mapping. */
6268 | ":CLIENT_EARLY_TRAFFIC_SECRET (?<client_early>" OCTET "{32})"
6269 | "|CLIENT_HANDSHAKE_TRAFFIC_SECRET (?<client_handshake>" OCTET "{32})"
6270 | "|SERVER_HANDSHAKE_TRAFFIC_SECRET (?<server_handshake>" OCTET "{32})"
6271 | "|CLIENT_TRAFFIC_SECRET_0 (?<client_appdata>" OCTET "{32})"
6272 | "|SERVER_TRAFFIC_SECRET_0 (?<server_appdata>" OCTET "{32})"
6273 | "|EARLY_EXPORTER_SECRET (?<early_exporter>" OCTET "{32})"
6274 | "|EXPORTER_SECRET (?<exporter>" OCTET "{32})"
6275 | /* ECH. Secret length is defined by HPKE KEM Nsecret and can vary between 32 and 64 bytes */
6276 | /* These labels and their notation are specified in draft-ietf-tls-ech-keylogfile-01 */
6277 | "|ECH_SECRET (?<ech_secret>" OCTET "{32,64})"
6278 | "|ECH_CONFIG (?<ech_config>" OCTET "{22,})"
6279 | ") (?<derived_secret>" OCTET "+)";
6280 | #undef OCTET
6281 | static GRegex *regex = NULL((void*)0);
6282 | GError *gerr = NULL((void*)0);
6283 |
6284 | if (!regex) {
6285 | regex = g_regex_new(pattern,
6286 | (GRegexCompileFlags)(G_REGEX_OPTIMIZE | G_REGEX_ANCHORED | G_REGEX_RAW),
6287 | G_REGEX_MATCH_ANCHORED, &gerr);
6288 | if (gerr) {
6289 | ssl_debug_printf("%s failed to compile regex: %s\n", G_STRFUNC((const char*) (__func__)),
6290 | gerr->message);
6291 | g_error_free(gerr);
6292 | regex = NULL((void*)0);
6293 | }
6294 | }
6295 |
6296 | return regex;
6297 | }
6298 |
6299 | typedef struct ssl_master_key_match_group {
6300 | const char *re_group_name;
6301 | GHashTable *master_key_ht;
6302 | } ssl_master_key_match_group_t;
6303 |
6304 | void
6305 | tls_keylog_process_lines(const ssl_master_key_map_t *mk_map, const uint8_t *data, unsigned datalen)
6306 | {
6307 | ssl_master_key_match_group_t mk_groups[] = {
6308 | { "encrypted_pmk", mk_map->pre_master },
6309 | { "session_id", mk_map->session },
6310 | { "client_random", mk_map->crandom },
6311 | { "client_random_pms", mk_map->pms },
6312 | /* TLS 1.3 map from Client Random to derived secret. */
6313 | { "client_early", mk_map->tls13_client_early },
6314 | { "client_handshake", mk_map->tls13_client_handshake },
6315 | { "server_handshake", mk_map->tls13_server_handshake },
6316 | { "client_appdata", mk_map->tls13_client_appdata },
6317 | { "server_appdata", mk_map->tls13_server_appdata },
6318 | { "early_exporter", mk_map->tls13_early_exporter },
6319 | { "exporter", mk_map->tls13_exporter },
6320 | { "ech_secret", mk_map->ech_secret },
6321 | { "ech_config", mk_map->ech_config },
6322 | };
6323 |
6324 | /* The format of the file is a series of records with one of the following formats:
6325 | * - "RSA xxxx yyyy"
6326 | * Where xxxx are the first 8 bytes of the encrypted pre-master secret (hex-encoded)
6327 | * Where yyyy is the cleartext pre-master secret (hex-encoded)
6328 | * (this is the original format introduced with bug 4349)
6329 | *
6330 | * - "RSA Session-ID:xxxx Master-Key:yyyy"
6331 | * Where xxxx is the SSL session ID (hex-encoded)
6332 | * Where yyyy is the cleartext master secret (hex-encoded)
6333 | * (added to support openssl s_client Master-Key output)
6334 | * This is somewhat is a misnomer because there's nothing RSA specific
6335 | * about this.
6336 | *
6337 | * - "PMS_CLIENT_RANDOM xxxx yyyy"
6338 | * Where xxxx is the client_random from the ClientHello (hex-encoded)
6339 | * Where yyyy is the cleartext pre-master secret (hex-encoded)
6340 | * (This format allows SSL connections to be decrypted, if a user can
6341 | * capture the PMS but could not recover the MS for a specific session
6342 | * with a SSL Server.)
6343 | *
6344 | * - "CLIENT_RANDOM xxxx yyyy"
6345 | * Where xxxx is the client_random from the ClientHello (hex-encoded)
6346 | * Where yyyy is the cleartext master secret (hex-encoded)
6347 | * (This format allows non-RSA SSL connections to be decrypted, i.e.
6348 | * ECDHE-RSA.)
6349 | *
6350 | * - "CLIENT_EARLY_TRAFFIC_SECRET xxxx yyyy"
6351 | * - "CLIENT_HANDSHAKE_TRAFFIC_SECRET xxxx yyyy"
6352 | * - "SERVER_HANDSHAKE_TRAFFIC_SECRET xxxx yyyy"
6353 | * - "CLIENT_TRAFFIC_SECRET_0 xxxx yyyy"
6354 | * - "SERVER_TRAFFIC_SECRET_0 xxxx yyyy"
6355 | * - "EARLY_EXPORTER_SECRET xxxx yyyy"
6356 | * - "EXPORTER_SECRET xxxx yyyy"
6357 | * Where xxxx is the client_random from the ClientHello (hex-encoded)
6358 | * Where yyyy is the secret (hex-encoded) derived from the early,
6359 | * handshake or master secrets. (This format is introduced with TLS 1.3
6360 | * and supported by BoringSSL, OpenSSL, etc. See bug 12779.)
6361 | */
6362 | GRegex *regex = ssl_compile_keyfile_regex();
6363 | if (!regex)
6364 | return;
6365 |
6366 | const char *next_line = (const char *)data;
6367 | const char *line_end = next_line + datalen;
6368 | while (next_line && next_line < line_end) {
6369 | const char *line = next_line;
6370 | next_line = (const char *)memchr(line, '\n', line_end - line);
6371 | ssize_t linelen;
6372 |
6373 | if (next_line) {
6374 | linelen = next_line - line;
6375 | next_line++; /* drop LF */
6376 | } else {
6377 | linelen = (ssize_t)(line_end - line);
6378 | }
6379 | if (linelen > 0 && line[linelen - 1] == '\r') {
6380 | linelen--; /* drop CR */
6381 | }
6382 |
6383 | ssl_debug_printf(" checking keylog line: %.*s\n", (int)linelen, line);
6384 | GMatchInfo *mi;
6385 | if (g_regex_match_full(regex, line, linelen, 0, G_REGEX_MATCH_ANCHORED, &mi, NULL((void*)0))) {
6386 | char *hex_key, *hex_pre_ms_or_ms;
6387 | StringInfo *key = wmem_new(wmem_file_scope(), StringInfo)((StringInfo*)wmem_alloc((wmem_file_scope()), sizeof(StringInfo )));
6388 | StringInfo *pre_ms_or_ms = NULL((void*)0);
6389 | GHashTable *ht = NULL((void*)0);
6390 |
6391 | /* Is the PMS being supplied with the PMS_CLIENT_RANDOM
6392 | * otherwise we will use the Master Secret
6393 | */
6394 | hex_pre_ms_or_ms = g_match_info_fetch_named(mi, "master_secret");
6395 | if (hex_pre_ms_or_ms == NULL((void*)0) || !*hex_pre_ms_or_ms) {
6396 | g_free(hex_pre_ms_or_ms)(__builtin_object_size ((hex_pre_ms_or_ms), 0) != ((size_t) - 1)) ? g_free_sized (hex_pre_ms_or_ms, __builtin_object_size ( (hex_pre_ms_or_ms), 0)) : (g_free) (hex_pre_ms_or_ms);
6397 | hex_pre_ms_or_ms = g_match_info_fetch_named(mi, "pms");
6398 | }
6399 | if (hex_pre_ms_or_ms == NULL((void*)0) || !*hex_pre_ms_or_ms) {
6400 | g_free(hex_pre_ms_or_ms)(__builtin_object_size ((hex_pre_ms_or_ms), 0) != ((size_t) - 1)) ? g_free_sized (hex_pre_ms_or_ms, __builtin_object_size ( (hex_pre_ms_or_ms), 0)) : (g_free) (hex_pre_ms_or_ms);
6401 | hex_pre_ms_or_ms = g_match_info_fetch_named(mi, "derived_secret");
6402 | }
6403 | /* There is always a match, otherwise the regex is wrong. */
6404 | DISSECTOR_ASSERT(hex_pre_ms_or_ms && strlen(hex_pre_ms_or_ms))((void) ((hex_pre_ms_or_ms && strlen(hex_pre_ms_or_ms )) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 6404, "hex_pre_ms_or_ms && strlen(hex_pre_ms_or_ms)" ))));
6405 |
6406 | /* convert from hex to bytes and save to hashtable */
6407 | pre_ms_or_ms = wmem_new(wmem_file_scope(), StringInfo)((StringInfo*)wmem_alloc((wmem_file_scope()), sizeof(StringInfo )));
6408 | from_hex(pre_ms_or_ms, hex_pre_ms_or_ms, strlen(hex_pre_ms_or_ms));
6409 | g_free(hex_pre_ms_or_ms)(__builtin_object_size ((hex_pre_ms_or_ms), 0) != ((size_t) - 1)) ? g_free_sized (hex_pre_ms_or_ms, __builtin_object_size ( (hex_pre_ms_or_ms), 0)) : (g_free) (hex_pre_ms_or_ms);
6410 |
6411 | /* Find a master key from any format (CLIENT_RANDOM, SID, ...) */
6412 | for (unsigned i = 0; i < G_N_ELEMENTS(mk_groups)(sizeof (mk_groups) / sizeof ((mk_groups)[0])); i++) {
6413 | ssl_master_key_match_group_t *g = &mk_groups[i];
6414 | hex_key = g_match_info_fetch_named(mi, g->re_group_name);
6415 | if (hex_key && *hex_key) {
6416 | ssl_debug_printf(" matched %s\n", g->re_group_name);
6417 | ht = g->master_key_ht;
6418 | from_hex(key, hex_key, strlen(hex_key));
6419 | g_free(hex_key)(__builtin_object_size ((hex_key), 0) != ((size_t) - 1)) ? g_free_sized (hex_key, __builtin_object_size ((hex_key), 0)) : (g_free) ( hex_key);
6420 | break;
6421 | }
6422 | g_free(hex_key)(__builtin_object_size ((hex_key), 0) != ((size_t) - 1)) ? g_free_sized (hex_key, __builtin_object_size ((hex_key), 0)) : (g_free) ( hex_key);
6423 | }
6424 | DISSECTOR_ASSERT(ht)((void) ((ht) ? (void)0 : (proto_report_dissector_bug("%s:%u: failed assertion \"%s\"" , "epan/dissectors/packet-tls-utils.c", 6424, "ht")))); /* Cannot be reached, or regex is wrong. */
6425 |
6426 | g_hash_table_insert(ht, key, pre_ms_or_ms);
6427 |
6428 | } else if (linelen > 0 && line[0] != '#') {
6429 | ssl_debug_printf(" unrecognized line\n");
6430 | }
6431 | /* always free match info even if there is no match. */
6432 | g_match_info_free(mi);
6433 | }
6434 | }
6435 |
6436 | void
6437 | ssl_load_keyfile(const char *tls_keylog_filename, FILE **keylog_file,
6438 | const ssl_master_key_map_t *mk_map)
6439 | {
6440 | /* no need to try if no key log file is configured. */
6441 | if (!tls_keylog_filename || !*tls_keylog_filename) {
6442 | ssl_debug_printf("%s dtls/tls.keylog_file is not configured!\n",
6443 | G_STRFUNC((const char*) (__func__)));
6444 | return;
6445 | }
6446 |
6447 | /* Validate regexes before even trying to use it. */
6448 | if (!ssl_compile_keyfile_regex()) {
6449 | return;
6450 | }
6451 |
6452 | ssl_debug_printf("trying to use TLS keylog in %s\n", tls_keylog_filename);
6453 |
6454 | /* if the keylog file was deleted/overwritten, re-open it */
6455 | if (*keylog_file && file_needs_reopen(ws_filenofileno(*keylog_file), tls_keylog_filename)) {
6456 | ssl_debug_printf("%s file got deleted, trying to re-open\n", G_STRFUNC((const char*) (__func__)));
6457 | fclose(*keylog_file);
6458 | *keylog_file = NULL((void*)0);
6459 | }
6460 |
6461 | if (*keylog_file == NULL((void*)0)) {
6462 | *keylog_file = ws_fopenfopen(tls_keylog_filename, "r");
6463 | if (!*keylog_file) {
6464 | ssl_debug_printf("%s failed to open SSL keylog\n", G_STRFUNC((const char*) (__func__)));
6465 | return;
6466 | }
6467 | }
6468 |
6469 | for (;;) {
6470 | char buf[1110], *line;
6471 | line = fgets(buf, sizeof(buf), *keylog_file);
6472 | if (!line) {
6473 | if (feof(*keylog_file)) {
6474 | /* Ensure that newly appended keys can be read in the future. */
6475 | clearerr(*keylog_file);
6476 | } else if (ferror(*keylog_file)) {
6477 | ssl_debug_printf("%s Error while reading key log file, closing it!\n", G_STRFUNC((const char*) (__func__)));
6478 | fclose(*keylog_file);
6479 | *keylog_file = NULL((void*)0);
6480 | }
6481 | break;
6482 | }
6483 | tls_keylog_process_lines(mk_map, (uint8_t *)line, (int)strlen(line));
6484 | }
6485 | }
6486 | /** SSL keylog file handling. }}} */
6487 |
6488 | #ifdef SSL_DECRYPT_DEBUG /* {{{ */
6489 |
6490 | static FILE* ssl_debug_file;
6491 |
6492 | void
6493 | ssl_set_debug(const char* name)
6494 | {
6495 | static int debug_file_must_be_closed;
6496 | int use_stderr;
6497 |
6498 | use_stderr = name?(strcmp(name, SSL_DEBUG_USE_STDERR"-") == 0):0;
6499 |
6500 | if (debug_file_must_be_closed)
6501 | fclose(ssl_debug_file);
6502 |
6503 | if (use_stderr)
6504 | ssl_debug_file = stderrstderr;
6505 | else if (!name || (strcmp(name, "") ==0))
6506 | ssl_debug_file = NULL((void*)0);
6507 | else
6508 | ssl_debug_file = ws_fopenfopen(name, "w");
6509 |
6510 | if (!use_stderr && ssl_debug_file)
6511 | debug_file_must_be_closed = 1;
6512 | else
6513 | debug_file_must_be_closed = 0;
6514 |
6515 | ssl_debug_printf("Wireshark SSL debug log \n\n");
6516 | #ifdef HAVE_LIBGNUTLS1
6517 | ssl_debug_printf("GnuTLS version: %s\n", gnutls_check_version(NULL((void*)0)));
6518 | #endif
6519 | ssl_debug_printf("Libgcrypt version: %s\n", gcry_check_version(NULL((void*)0)));
6520 | ssl_debug_printf("\n");
6521 | }
6522 |
6523 | void
6524 | ssl_debug_flush(void)
6525 | {
6526 | if (ssl_debug_file)
6527 | fflush(ssl_debug_file);
6528 | }
6529 |
6530 | void
6531 | ssl_debug_printf(const char* fmt, ...)
6532 | {
6533 | va_list ap;
6534 |
6535 | if (!ssl_debug_file)
6536 | return;
6537 |
6538 | va_start(ap, fmt)__builtin_va_start(ap, fmt);
6539 | vfprintf(ssl_debug_file, fmt, ap);
6540 | va_end(ap)__builtin_va_end(ap);
6541 | }
6542 |
6543 | void
6544 | ssl_print_data(const char* name, const unsigned char* data, size_t len)
6545 | {
6546 | size_t i, j, k;
6547 | if (!ssl_debug_file)
6548 | return;
6549 | fprintf(ssl_debug_file,"%s[%d]:\n",name, (int) len);
6550 | for (i=0; i<len; i+=16) {
6551 | fprintf(ssl_debug_file,"| ");
6552 | for (j=i, k=0; k<16 && j<len; ++j, ++k)
6553 | fprintf(ssl_debug_file,"%.2x ",data[j]);
6554 | for (; k<16; ++k)
6555 | fprintf(ssl_debug_file," ");
6556 | fputc('|', ssl_debug_file);
6557 | for (j=i, k=0; k<16 && j<len; ++j, ++k) {
6558 | unsigned char c = data[j];
6559 | if (!g_ascii_isprint(c)((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0) || (c=='\t')) c = '.';
6560 | fputc(c, ssl_debug_file);
6561 | }
6562 | for (; k<16; ++k)
6563 | fputc(' ', ssl_debug_file);
6564 | fprintf(ssl_debug_file,"|\n");
6565 | }
6566 | }
6567 |
6568 | void
6569 | ssl_print_string(const char* name, const StringInfo* data)
6570 | {
6571 | ssl_print_data(name, data->data, data->data_len);
6572 | }
6573 | #endif /* SSL_DECRYPT_DEBUG }}} */
6574 |
6575 | /* UAT preferences callbacks. {{{ */
6576 | /* checks for SSL and DTLS UAT key list fields */
6577 |
6578 | bool_Bool
6579 | ssldecrypt_uat_fld_ip_chk_cb(void* r _U___attribute__((unused)), const char* p _U___attribute__((unused)), unsigned len _U___attribute__((unused)), const void* u1 _U___attribute__((unused)), const void* u2 _U___attribute__((unused)), char** err)
6580 | {
6581 | // This should be removed in favor of Decode As. Make it optional.
6582 | *err = NULL((void*)0);
6583 | return true1;
6584 | }
6585 |
6586 | bool_Bool
6587 | ssldecrypt_uat_fld_port_chk_cb(void* r _U___attribute__((unused)), const char* p, unsigned len _U___attribute__((unused)), const void* u1 _U___attribute__((unused)), const void* u2 _U___attribute__((unused)), char** err)
6588 | {
6589 | if (!p || strlen(p) == 0u) {
6590 | // This should be removed in favor of Decode As. Make it optional.
6591 | *err = NULL((void*)0);
6592 | return true1;
6593 | }
6594 |
6595 | if (strcmp(p, "start_tls") != 0){
6596 | uint16_t port;
6597 | if (!ws_strtou16(p, NULL((void*)0), &port)) {
6598 | *err = g_strdup("Invalid port given.")g_strdup_inline ("Invalid port given.");
6599 | return false0;
6600 | }
6601 | }
6602 |
6603 | *err = NULL((void*)0);
6604 | return true1;
6605 | }
6606 |
6607 | bool_Bool
6608 | ssldecrypt_uat_fld_fileopen_chk_cb(void* r _U___attribute__((unused)), const char* p, unsigned len _U___attribute__((unused)), const void* u1 _U___attribute__((unused)), const void* u2 _U___attribute__((unused)), char** err)
6609 | {
6610 | ws_statb64struct stat st;
6611 |
6612 | if (!p || strlen(p) == 0u) {
6613 | *err = g_strdup("No filename given.")g_strdup_inline ("No filename given.");
6614 | return false0;
6615 | } else {
6616 | if (ws_stat64stat(p, &st) != 0) {
6617 | *err = ws_strdup_printf("File '%s' does not exist or access is denied.", p)wmem_strdup_printf(((void*)0), "File '%s' does not exist or access is denied." , p);
6618 | return false0;
6619 | }
6620 | }
6621 |
6622 | *err = NULL((void*)0);
6623 | return true1;
6624 | }
6625 |
6626 | bool_Bool
6627 | ssldecrypt_uat_fld_password_chk_cb(void *r _U___attribute__((unused)), const char *p _U___attribute__((unused)), unsigned len _U___attribute__((unused)), const void *u1 _U___attribute__((unused)), const void *u2 _U___attribute__((unused)), char **err)
6628 | {
6629 | #if defined(HAVE_LIBGNUTLS1)
6630 | ssldecrypt_assoc_t* f = (ssldecrypt_assoc_t *)r;
6631 | FILE *fp = NULL((void*)0);
6632 |
6633 | if (p && (strlen(p) > 0u)) {
6634 | fp = ws_fopenfopen(f->keyfile, "rb");
6635 | if (fp) {
6636 | char *msg = NULL((void*)0);
6637 | gnutls_x509_privkey_t priv_key = rsa_load_pkcs12(fp, p, &msg);
6638 | if (!priv_key) {
6639 | fclose(fp);
6640 | *err = ws_strdup_printf("Could not load PKCS#12 key file: %s", msg)wmem_strdup_printf(((void*)0), "Could not load PKCS#12 key file: %s" , msg);
6641 | g_free(msg)(__builtin_object_size ((msg), 0) != ((size_t) - 1)) ? g_free_sized (msg, __builtin_object_size ((msg), 0)) : (g_free) (msg);
6642 | return false0;
6643 | }
6644 | g_free(msg)(__builtin_object_size ((msg), 0) != ((size_t) - 1)) ? g_free_sized (msg, __builtin_object_size ((msg), 0)) : (g_free) (msg);
6645 | gnutls_x509_privkey_deinit(priv_key);
6646 | fclose(fp);
6647 | } else {
6648 | *err = ws_strdup_printf("Leave this field blank if the keyfile is not PKCS#12.")wmem_strdup_printf(((void*)0), "Leave this field blank if the keyfile is not PKCS#12." );
6649 | return false0;
6650 | }
6651 | }
6652 |
6653 | *err = NULL((void*)0);
6654 | return true1;
6655 | #else
6656 | *err = g_strdup("Cannot load key files, support is not compiled in.")g_strdup_inline ("Cannot load key files, support is not compiled in." );
6657 | return false0;
6658 | #endif
6659 | }
6660 | /* UAT preferences callbacks. }}} */
6661 |
6662 | /** maximum size of ssl_association_info() string */
6663 | #define SSL_ASSOC_MAX_LEN8192 8192
6664 |
6665 | typedef struct ssl_association_info_callback_data
6666 | {
6667 | char *str;
6668 | const char *table_protocol;
6669 | } ssl_association_info_callback_data_t;
6670 |
6671 | /**
6672 | * callback function used by ssl_association_info() to traverse the SSL associations.
6673 | */
6674 | static void
6675 | ssl_association_info_(const char *table _U___attribute__((unused)), void *handle, void *user_data)
6676 | {
6677 | ssl_association_info_callback_data_t* data = (ssl_association_info_callback_data_t*)user_data;
6678 | const int l = (const int)strlen(data->str);
6679 | snprintf(data->str+l, SSL_ASSOC_MAX_LEN8192-l, "'%s' (%s)\n", dissector_handle_get_dissector_name((dissector_handle_t)handle), dissector_handle_get_description((dissector_handle_t)handle));
6680 | }
6681 |
6682 | /**
6683 | * @return an information string on the SSL protocol associations. The string must be freed.
6684 | */
6685 | char*
6686 | ssl_association_info(const char* dissector_table_name, const char* table_protocol)
6687 | {
6688 | ssl_association_info_callback_data_t data;
6689 |
6690 | data.str = (char *)g_malloc0(SSL_ASSOC_MAX_LEN8192);
6691 | data.table_protocol = table_protocol;
6692 | dissector_table_foreach_handle(dissector_table_name, ssl_association_info_, &data);
6693 | return data.str;
6694 | }
6695 |
6696 |
6697 | /** Begin of code related to dissection of wire data. */
6698 |
6699 | /* Helpers for dissecting Variable-Length Vectors. {{{ */
6700 | bool_Bool
6701 | ssl_add_vector(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
6702 | unsigned offset, unsigned offset_end, uint32_t *ret_length,
6703 | int hf_length, uint32_t min_value, uint32_t max_value)
6704 | {
6705 | unsigned veclen_size;
6706 | uint32_t veclen_value;
6707 | proto_item *pi;
6708 |
6709 | DISSECTOR_ASSERT_CMPUINT(min_value, <=, max_value)((void) ((min_value <= max_value) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion " "min_value" " " "<=" " " "max_value" " (" "%" "l" "u" " " "<=" " " "%" "l" "u" ")", "epan/dissectors/packet-tls-utils.c" , 6709, (uint64_t)min_value, (uint64_t)max_value))));
6710 | if (offset > offset_end) {
6711 | expert_add_info_format(pinfo, tree, &hf->ei.malformed_buffer_too_small,
6712 | "Vector offset is past buffer end offset (%u > %u)",
6713 | offset, offset_end);
6714 | *ret_length = 0;
6715 | return false0; /* Cannot read length. */
6716 | }
6717 |
6718 | if (max_value > 0xffffff) {
6719 | veclen_size = 4;
6720 | } else if (max_value > 0xffff) {
6721 | veclen_size = 3;
6722 | } else if (max_value > 0xff) {
6723 | veclen_size = 2;
6724 | } else {
6725 | veclen_size = 1;
6726 | }
6727 |
6728 | if (offset_end - offset < veclen_size) {
6729 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.malformed_buffer_too_small,
6730 | tvb, offset, offset_end - offset,
6731 | "No more room for vector of length %u",
6732 | veclen_size);
6733 | *ret_length = 0;
6734 | return false0; /* Cannot read length. */
6735 | }
6736 |
6737 | pi = proto_tree_add_item_ret_uint(tree, hf_length, tvb, offset, veclen_size, ENC_BIG_ENDIAN0x00000000, &veclen_value);
6738 | offset += veclen_size;
6739 |
6740 | if (veclen_value < min_value) {
6741 | expert_add_info_format(pinfo, pi, &hf->ei.malformed_vector_length,
6742 | "Vector length %u is smaller than minimum %u",
6743 | veclen_value, min_value);
6744 | } else if (veclen_value > max_value) {
6745 | expert_add_info_format(pinfo, pi, &hf->ei.malformed_vector_length,
6746 | "Vector length %u is larger than maximum %u",
6747 | veclen_value, max_value);
6748 | }
6749 |
6750 | if (offset_end - offset < veclen_value) {
6751 | expert_add_info_format(pinfo, pi, &hf->ei.malformed_buffer_too_small,
6752 | "Vector length %u is too large, truncating it to %u",
6753 | veclen_value, offset_end - offset);
6754 | *ret_length = offset_end - offset;
6755 | return false0; /* Length is truncated to avoid overflow. */
6756 | }
6757 |
6758 | *ret_length = veclen_value;
6759 | return true1; /* Length is OK. */
6760 | }
6761 |
6762 | bool_Bool
6763 | ssl_end_vector(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
6764 | unsigned offset, unsigned offset_end)
6765 | {
6766 | if (offset < offset_end) {
6767 | unsigned trailing = offset_end - offset;
6768 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.malformed_trailing_data,
6769 | tvb, offset, trailing,
6770 | "%u trailing byte%s unprocessed",
6771 | trailing, plurality(trailing, " was", "s were")((trailing) == 1 ? (" was") : ("s were")));
6772 | return false0; /* unprocessed data warning */
6773 | } else if (offset > offset_end) {
6774 | /*
6775 | * Returned offset runs past the end. This should not happen and is
6776 | * possibly a dissector bug.
6777 | */
6778 | unsigned excess = offset - offset_end;
6779 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.malformed_buffer_too_small,
6780 | tvb, offset_end, excess,
6781 | "Dissector processed too much data (%u byte%s)",
6782 | excess, plurality(excess, "", "s")((excess) == 1 ? ("") : ("s")));
6783 | return false0; /* overflow error */
6784 | }
6785 |
6786 | return true1; /* OK, offset matches. */
6787 | }
6788 | /** }}} */
6789 |
6790 |
6791 | static uint32_t
6792 | ssl_dissect_digitally_signed(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
6793 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
6794 | uint16_t version, int hf_sig_len, int hf_sig);
6795 |
6796 | /* change_cipher_spec(20) dissection */
6797 | void
6798 | ssl_dissect_change_cipher_spec(ssl_common_dissect_t *hf, tvbuff_t *tvb,
6799 | packet_info *pinfo, proto_tree *tree,
6800 | uint32_t offset, SslSession *session,
6801 | bool_Bool is_from_server,
6802 | const SslDecryptSession *ssl)
6803 | {
6804 | /*
6805 | * struct {
6806 | * enum { change_cipher_spec(1), (255) } type;
6807 | * } ChangeCipherSpec;
6808 | */
6809 | proto_item *ti;
6810 | proto_item_set_text(tree,
6811 | "%s Record Layer: %s Protocol: Change Cipher Spec",
6812 | val_to_str_const(session->version, ssl_version_short_names, "SSL"),
6813 | val_to_str_const(SSL_ID_CHG_CIPHER_SPEC, ssl_31_content_type, "unknown"));
6814 | ti = proto_tree_add_item(tree, hf->hf.change_cipher_spec, tvb, offset, 1, ENC_NA0x00000000);
6815 |
6816 | if (session->version == TLSV1DOT3_VERSION0x304) {
6817 | /* CCS is a dummy message in TLS 1.3, do not parse it further. */
6818 | return;
6819 | }
6820 |
6821 | /* Remember frame number of first CCS */
6822 | uint32_t *ccs_frame = is_from_server ? &session->server_ccs_frame : &session->client_ccs_frame;
6823 | if (*ccs_frame == 0)
6824 | *ccs_frame = pinfo->num;
6825 |
6826 | /* Use heuristics to detect an abbreviated handshake, assume that missing
6827 | * ServerHelloDone implies reusing previously negotiating keys. Then when
6828 | * a Session ID or ticket is present, it must be a resumed session.
6829 | * Normally this should be done at the Finished message, but that may be
6830 | * encrypted so we do it here, at the last cleartext message. */
6831 | if (is_from_server && ssl) {
6832 | if (session->is_session_resumed) {
6833 | const char *resumed = NULL((void*)0);
6834 | if (ssl->session_ticket.data_len) {
6835 | resumed = "Session Ticket";
6836 | } else if (ssl->session_id.data_len) {
6837 | resumed = "Session ID";
6838 | }
6839 | if (resumed) {
6840 | ssl_debug_printf("%s Session resumption using %s\n", G_STRFUNC((const char*) (__func__)), resumed);
6841 | } else {
6842 | /* Can happen if the capture somehow starts in the middle */
6843 | ssl_debug_printf("%s No Session resumption, missing packets?\n", G_STRFUNC((const char*) (__func__)));
6844 | }
6845 | } else {
6846 | ssl_debug_printf("%s Not using Session resumption\n", G_STRFUNC((const char*) (__func__)));
6847 | }
6848 | }
6849 | if (is_from_server && session->is_session_resumed)
6850 | expert_add_info(pinfo, ti, &hf->ei.resumed);
6851 | }
6852 |
6853 | /** Begin of handshake(22) record dissections */
6854 |
6855 | /* Dissects a SignatureScheme (TLS 1.3) or SignatureAndHashAlgorithm (TLS 1.2).
6856 | * {{{ */
6857 | static void
6858 | tls_dissect_signature_algorithm(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, uint32_t offset, ja4_data_t *ja4_data)
6859 | {
6860 | uint32_t sighash, hashalg, sigalg;
6861 | proto_item *ti_sigalg;
6862 | proto_tree *sigalg_tree;
6863 |
6864 | ti_sigalg = proto_tree_add_item_ret_uint(tree, hf->hf.hs_sig_hash_alg, tvb,
6865 | offset, 2, ENC_BIG_ENDIAN0x00000000, &sighash);
6866 | if (ja4_data) {
6867 | wmem_list_append(ja4_data->sighash_list, GUINT_TO_POINTER(sighash)((gpointer) (gulong) (sighash)));
6868 | }
6869 |
6870 | sigalg_tree = proto_item_add_subtree(ti_sigalg, hf->ett.hs_sig_hash_alg);
6871 |
6872 | /* TLS 1.2: SignatureAndHashAlgorithm { hash, signature } */
6873 | proto_tree_add_item_ret_uint(sigalg_tree, hf->hf.hs_sig_hash_hash, tvb,
6874 | offset, 1, ENC_BIG_ENDIAN0x00000000, &hashalg);
6875 | proto_tree_add_item_ret_uint(sigalg_tree, hf->hf.hs_sig_hash_sig, tvb,
6876 | offset + 1, 1, ENC_BIG_ENDIAN0x00000000, &sigalg);
6877 |
6878 | /* No TLS 1.3 SignatureScheme? Fallback to TLS 1.2 interpretation. */
6879 | if (!try_val_to_str(sighash, tls13_signature_algorithm)) {
6880 | proto_item_set_text(ti_sigalg, "Signature Algorithm: %s %s (0x%04x)",
6881 | val_to_str_const(hashalg, tls_hash_algorithm, "Unknown"),
6882 | val_to_str_const(sigalg, tls_signature_algorithm, "Unknown"),
6883 | sighash);
6884 | }
6885 | } /* }}} */
6886 |
6887 | /* dissect a list of hash algorithms, return the number of bytes dissected
6888 | this is used for the signature algorithms extension and for the
6889 | TLS1.2 certificate request. {{{ */
6890 | static int
6891 | ssl_dissect_hash_alg_list(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree,
6892 | packet_info* pinfo, uint32_t offset, uint32_t offset_end, ja4_data_t *ja4_data)
6893 | {
6894 | /* https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1
6895 | * struct {
6896 | * HashAlgorithm hash;
6897 | * SignatureAlgorithm signature;
6898 | * } SignatureAndHashAlgorithm;
6899 | * SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2>;
6900 | */
6901 | proto_tree *subtree;
6902 | proto_item *ti;
6903 | unsigned sh_alg_length;
6904 | uint32_t next_offset;
6905 |
6906 | /* SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2> */
6907 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &sh_alg_length,
6908 | hf->hf.hs_sig_hash_alg_len, 2, UINT16_MAX(65535) - 1)) {
6909 | return offset_end;
6910 | }
6911 | offset += 2;
6912 | next_offset = offset + sh_alg_length;
6913 |
6914 | ti = proto_tree_add_none_format(tree, hf->hf.hs_sig_hash_algs, tvb, offset, sh_alg_length,
6915 | "Signature Hash Algorithms (%u algorithm%s)",
6916 | sh_alg_length / 2, plurality(sh_alg_length / 2, "", "s")((sh_alg_length / 2) == 1 ? ("") : ("s")));
6917 | subtree = proto_item_add_subtree(ti, hf->ett.hs_sig_hash_algs);
6918 |
6919 | while (offset + 2 <= next_offset) {
6920 | tls_dissect_signature_algorithm(hf, tvb, subtree, offset, ja4_data);
6921 | offset += 2;
6922 | }
6923 |
6924 | if (!ssl_end_vector(hf, tvb, pinfo, subtree, offset, next_offset)) {
6925 | offset = next_offset;
6926 | }
6927 |
6928 | return offset;
6929 | } /* }}} */
6930 |
6931 | /* Dissection of DistinguishedName (for CertificateRequest and
6932 | * certificate_authorities extension). {{{ */
6933 | static uint32_t
6934 | tls_dissect_certificate_authorities(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
6935 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
6936 | {
6937 | proto_item *ti;
6938 | proto_tree *subtree;
6939 | uint32_t dnames_length, next_offset;
6940 | asn1_ctx_t asn1_ctx;
6941 | int dnames_count = 100; /* the maximum number of DNs to add to the tree */
6942 |
6943 | /* Note: minimum length is 0 for TLS 1.1/1.2 and 3 for earlier/later */
6944 | /* DistinguishedName certificate_authorities<0..2^16-1> */
6945 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &dnames_length,
6946 | hf->hf.hs_dnames_len, 0, UINT16_MAX(65535))) {
6947 | return offset_end;
6948 | }
6949 | offset += 2;
6950 | next_offset = offset + dnames_length;
6951 |
6952 | if (dnames_length > 0) {
6953 | ti = proto_tree_add_none_format(tree,
6954 | hf->hf.hs_dnames,
6955 | tvb, offset, dnames_length,
6956 | "Distinguished Names (%d byte%s)",
6957 | dnames_length,
6958 | plurality(dnames_length, "", "s")((dnames_length) == 1 ? ("") : ("s")));
6959 | subtree = proto_item_add_subtree(ti, hf->ett.dnames);
6960 |
6961 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
6962 |
6963 | while (offset < next_offset) {
6964 | /* get the length of the current certificate */
6965 | uint32_t name_length;
6966 |
6967 | if (dnames_count-- == 0) {
6968 | /* stop adding to tree when the list is considered too large
6969 | * https://gitlab.com/wireshark/wireshark/-/issues/16202
6970 | Note: dnames_count must be set low enough not to hit the
6971 | limit set by PINFO_LAYER_MAX_RECURSION_DEPTH in packet.c
6972 | */
6973 | ti = proto_tree_add_item(subtree, hf->hf.hs_dnames_truncated,
6974 | tvb, offset, next_offset - offset, ENC_NA0x00000000);
6975 | proto_item_set_generated(ti);
6976 | return next_offset;
6977 | }
6978 |
6979 | /* opaque DistinguishedName<1..2^16-1> */
6980 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, next_offset, &name_length,
6981 | hf->hf.hs_dname_len, 1, UINT16_MAX(65535))) {
6982 | return next_offset;
6983 | }
6984 | offset += 2;
6985 |
6986 | dissect_x509if_DistinguishedName(false0, tvb, offset, &asn1_ctx,
6987 | subtree, hf->hf.hs_dname);
6988 | offset += name_length;
6989 | }
6990 | }
6991 | return offset;
6992 | } /* }}} */
6993 |
6994 |
6995 | /** TLS Extensions (in Client Hello and Server Hello). {{{ */
6996 | static int
6997 | ssl_dissect_hnd_hello_ext_sig_hash_algs(ssl_common_dissect_t *hf, tvbuff_t *tvb,
6998 | proto_tree *tree, packet_info* pinfo, uint32_t offset, uint32_t offset_end, ja4_data_t *ja4_data)
6999 | {
7000 | return ssl_dissect_hash_alg_list(hf, tvb, tree, pinfo, offset, offset_end, ja4_data);
7001 | }
7002 |
7003 | static int
7004 | ssl_dissect_hnd_ext_delegated_credentials(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7005 | proto_tree *tree, packet_info* pinfo, uint32_t offset, uint32_t offset_end, uint8_t hnd_type)
7006 | {
7007 | if (hnd_type == SSL_HND_CLIENT_HELLO ||
7008 | hnd_type == SSL_HND_CERT_REQUEST) {
7009 | /*
7010 | * struct {
7011 | * SignatureScheme supported_signature_algorithm<2..2^16-2>;
7012 | * } SignatureSchemeList;
7013 | */
7014 |
7015 | return ssl_dissect_hash_alg_list(hf, tvb, tree, pinfo, offset, offset_end, NULL((void*)0));
7016 | } else {
7017 | asn1_ctx_t asn1_ctx;
7018 | unsigned pubkey_length, sign_length;
7019 |
7020 | /*
7021 | * struct {
7022 | * uint32 valid_time;
7023 | * SignatureScheme expected_cert_verify_algorithm;
7024 | * opaque ASN1_subjectPublicKeyInfo<1..2^24-1>;
7025 | * } Credential;
7026 | *
7027 | * struct {
7028 | * Credential cred;
7029 | * SignatureScheme algorithm;
7030 | * opaque signature<0..2^16-1>;
7031 | * } DelegatedCredential;
7032 | */
7033 |
7034 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
7035 |
7036 | proto_tree_add_item(tree, hf->hf.hs_cred_valid_time, tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
7037 | offset += 4;
7038 |
7039 | tls_dissect_signature_algorithm(hf, tvb, tree, offset, NULL((void*)0));
7040 | offset += 2;
7041 |
7042 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &pubkey_length,
7043 | hf->hf.hs_cred_pubkey_len, 1, G_MAXUINT24((1U << 24) - 1))) {
7044 | return offset_end;
7045 | }
7046 | offset += 3;
7047 | dissect_x509af_SubjectPublicKeyInfo(false0, tvb, offset, &asn1_ctx, tree, hf->hf.hs_cred_pubkey);
7048 | offset += pubkey_length;
7049 |
7050 | tls_dissect_signature_algorithm(hf, tvb, tree, offset, NULL((void*)0));
7051 | offset += 2;
7052 |
7053 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &sign_length,
7054 | hf->hf.hs_cred_signature_len, 1, UINT16_MAX(65535))) {
7055 | return offset_end;
7056 | }
7057 | offset += 2;
7058 | proto_tree_add_item(tree, hf->hf.hs_cred_signature,
7059 | tvb, offset, sign_length, ENC_ASCII0x00000000|ENC_NA0x00000000);
7060 | offset += sign_length;
7061 |
7062 | return offset;
7063 | }
7064 | }
7065 |
7066 | static int
7067 | ssl_dissect_hnd_hello_ext_alps(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7068 | packet_info *pinfo, proto_tree *tree,
7069 | uint32_t offset, uint32_t offset_end,
7070 | uint8_t hnd_type)
7071 | {
7072 |
7073 | /* https://datatracker.ietf.org/doc/html/draft-vvv-tls-alps-01#section-4 */
7074 |
7075 | switch (hnd_type) {
7076 | case SSL_HND_CLIENT_HELLO: {
7077 | proto_tree *alps_tree;
7078 | proto_item *ti;
7079 | uint32_t next_offset, alps_length, name_length;
7080 |
7081 | /*
7082 | * opaque ProtocolName<1..2^8-1>;
7083 | * struct {
7084 | * ProtocolName supported_protocols<2..2^16-1>
7085 | * } ApplicationSettingsSupport;
7086 | */
7087 |
7088 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &alps_length,
7089 | hf->hf.hs_ext_alps_len, 2, UINT16_MAX(65535))) {
7090 | return offset_end;
7091 | }
7092 | offset += 2;
7093 | next_offset = offset + alps_length;
7094 |
7095 | ti = proto_tree_add_item(tree, hf->hf.hs_ext_alps_alpn_list,
7096 | tvb, offset, alps_length, ENC_NA0x00000000);
7097 | alps_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_alps);
7098 |
7099 | /* Parse list (note missing check for end of vector, ssl_add_vector below
7100 | * ensures that data is always available.) */
7101 | while (offset < next_offset) {
7102 | if (!ssl_add_vector(hf, tvb, pinfo, alps_tree, offset, next_offset, &name_length,
7103 | hf->hf.hs_ext_alps_alpn_str_len, 1, UINT8_MAX(255))) {
7104 | return next_offset;
7105 | }
7106 | offset++;
7107 |
7108 | proto_tree_add_item(alps_tree, hf->hf.hs_ext_alps_alpn_str,
7109 | tvb, offset, name_length, ENC_ASCII0x00000000|ENC_NA0x00000000);
7110 | offset += name_length;
7111 | }
7112 |
7113 | return offset;
7114 | }
7115 | case SSL_HND_ENCRYPTED_EXTS:
7116 | /* Opaque blob */
7117 | proto_tree_add_item(tree, hf->hf.hs_ext_alps_settings,
7118 | tvb, offset, offset_end - offset, ENC_ASCII0x00000000|ENC_NA0x00000000);
7119 | break;
7120 | }
7121 |
7122 | return offset_end;
7123 | }
7124 |
7125 | static int
7126 | ssl_dissect_hnd_hello_ext_alpn(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7127 | packet_info *pinfo, proto_tree *tree,
7128 | uint32_t offset, uint32_t offset_end,
7129 | uint8_t hnd_type, SslSession *session,
7130 | bool_Bool is_dtls, ja4_data_t *ja4_data)
7131 | {
7132 |
7133 | /* https://tools.ietf.org/html/rfc7301#section-3.1
7134 | * opaque ProtocolName<1..2^8-1>;
7135 | * struct {
7136 | * ProtocolName protocol_name_list<2..2^16-1>
7137 | * } ProtocolNameList;
7138 | */
7139 | proto_tree *alpn_tree;
7140 | proto_item *ti;
7141 | uint32_t next_offset, alpn_length, name_length;
7142 | const char *proto_name = NULL((void*)0), *client_proto_name = NULL((void*)0);
7143 |
7144 | /* ProtocolName protocol_name_list<2..2^16-1> */
7145 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &alpn_length,
7146 | hf->hf.hs_ext_alpn_len, 2, UINT16_MAX(65535))) {
7147 | return offset_end;
7148 | }
7149 | offset += 2;
7150 | next_offset = offset + alpn_length;
7151 |
7152 | ti = proto_tree_add_item(tree, hf->hf.hs_ext_alpn_list,
7153 | tvb, offset, alpn_length, ENC_NA0x00000000);
7154 | alpn_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_alpn);
7155 |
7156 | /* Parse list (note missing check for end of vector, ssl_add_vector below
7157 | * ensures that data is always available.) */
7158 | while (offset < next_offset) {
7159 | /* opaque ProtocolName<1..2^8-1> */
7160 | if (!ssl_add_vector(hf, tvb, pinfo, alpn_tree, offset, next_offset, &name_length,
7161 | hf->hf.hs_ext_alpn_str_len, 1, UINT8_MAX(255))) {
7162 | return next_offset;
7163 | }
7164 | offset++;
7165 |
7166 | proto_tree_add_item(alpn_tree, hf->hf.hs_ext_alpn_str,
7167 | tvb, offset, name_length, ENC_ASCII0x00000000|ENC_NA0x00000000);
7168 | if (ja4_data && wmem_strbuf_get_len(ja4_data->alpn) == 0) {
7169 | const char alpn_first_char = (char)tvb_get_uint8(tvb,offset);
7170 | const char alpn_last_char = (char)tvb_get_uint8(tvb,offset + name_length - 1);
7171 | if ((g_ascii_isalnum(alpn_first_char)((g_ascii_table[(guchar) (alpn_first_char)] & G_ASCII_ALNUM ) != 0)) && g_ascii_isalnum(alpn_last_char)((g_ascii_table[(guchar) (alpn_last_char)] & G_ASCII_ALNUM ) != 0)) {
7172 | wmem_strbuf_append_printf(ja4_data->alpn, "%c%c", alpn_first_char, alpn_last_char);
7173 | }
7174 | else {
7175 | wmem_strbuf_append_printf(ja4_data->alpn, "%x%x",(alpn_first_char >> 4) & 0x0F,
7176 | alpn_last_char & 0x0F);
7177 | }
7178 | }
7179 | /* Remember first ALPN ProtocolName entry for server. */
7180 | if (hnd_type == SSL_HND_SERVER_HELLO || hnd_type == SSL_HND_ENCRYPTED_EXTENSIONS) {
7181 | /* '\0'-terminated string for dissector table match and prefix
7182 | * comparison purposes. */
7183 | proto_name = (char*)tvb_get_string_enc(pinfo->pool, tvb, offset,
7184 | name_length, ENC_ASCII0x00000000);
7185 | } else if (hnd_type == SSL_HND_CLIENT_HELLO) {
7186 | client_proto_name = (char*)tvb_get_string_enc(pinfo->pool, tvb, offset,
7187 | name_length, ENC_ASCII0x00000000);
7188 | }
7189 | offset += name_length;
7190 | }
7191 |
7192 | /* If ALPN is given in ServerHello, then ProtocolNameList MUST contain
7193 | * exactly one "ProtocolName". */
7194 | if (proto_name) {
7195 | dissector_handle_t handle;
7196 |
7197 | session->alpn_name = wmem_strdup(wmem_file_scope(), proto_name);
7198 |
7199 | if (is_dtls) {
7200 | handle = dissector_get_string_handle(dtls_alpn_dissector_table,
7201 | proto_name);
7202 | } else {
7203 | handle = dissector_get_string_handle(ssl_alpn_dissector_table,
7204 | proto_name);
7205 | if (handle == NULL((void*)0)) {
7206 | /* Try prefix matching */
7207 | for (size_t i = 0; i < G_N_ELEMENTS(ssl_alpn_prefix_match_protocols)(sizeof (ssl_alpn_prefix_match_protocols) / sizeof ((ssl_alpn_prefix_match_protocols )[0])); i++) {
7208 | const ssl_alpn_prefix_match_protocol_t *alpn_proto = &ssl_alpn_prefix_match_protocols[i];
7209 |
7210 | /* string_string is inappropriate as it compares strings
7211 | * while "byte strings MUST NOT be truncated" (RFC 7301) */
7212 | if (g_str_has_prefix(proto_name, alpn_proto->proto_prefix)(__builtin_constant_p (alpn_proto->proto_prefix)? __extension__ ({ const char * const __str = (proto_name); const char * const __prefix = (alpn_proto->proto_prefix); gboolean __result = (0); if (__str == ((void*)0) || __prefix == ((void*)0)) __result = (g_str_has_prefix) (__str, __prefix); else { const size_t __str_len = strlen (((__str) + !(__str))); const size_t __prefix_len = strlen (((__prefix) + !(__prefix))); if (__str_len >= __prefix_len ) __result = memcmp (((__str) + !(__str)), ((__prefix) + !(__prefix )), __prefix_len) == 0; } __result; }) : (g_str_has_prefix) ( proto_name, alpn_proto->proto_prefix) )) {
7213 | handle = find_dissector(alpn_proto->dissector_name);
7214 | break;
7215 | }
7216 | }
7217 | }
7218 | }
7219 | if (handle != NULL((void*)0)) {
7220 | /* ProtocolName match, so set the App data dissector handle.
7221 | * This may override protocols given via the UAT dialog, but
7222 | * since the ALPN hint is precise, do it anyway. */
7223 | ssl_debug_printf("%s: changing handle %p to %p (%s)", G_STRFUNC((const char*) (__func__)),
7224 | (void *)session->app_handle,
7225 | (void *)handle,
7226 | dissector_handle_get_dissector_name(handle));
7227 | session->app_handle = handle;
7228 | }
7229 | } else if (client_proto_name) {
7230 | // No current use for looking up the handle as the only consumer of this API is currently the QUIC dissector
7231 | // and it just needs the string since there are/were various HTTP/3 ALPNs to check for.
7232 | session->client_alpn_name = wmem_strdup(wmem_file_scope(), client_proto_name);
7233 | }
7234 |
7235 | return offset;
7236 | }
7237 |
7238 | static int
7239 | ssl_dissect_hnd_hello_ext_npn(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7240 | packet_info *pinfo, proto_tree *tree,
7241 | uint32_t offset, uint32_t offset_end)
7242 | {
7243 | /* https://tools.ietf.org/html/draft-agl-tls-nextprotoneg-04#page-3
7244 | * The "extension_data" field of a "next_protocol_negotiation" extension
7245 | * in a "ServerHello" contains an optional list of protocols advertised
7246 | * by the server. Protocols are named by opaque, non-empty byte strings
7247 | * and the list of protocols is serialized as a concatenation of 8-bit,
7248 | * length prefixed byte strings. Implementations MUST ensure that the
7249 | * empty string is not included and that no byte strings are truncated.
7250 | */
7251 | uint32_t npn_length;
7252 | proto_tree *npn_tree;
7253 |
7254 | /* List is optional, do not add tree if there are no entries. */
7255 | if (offset == offset_end) {
7256 | return offset;
7257 | }
7258 |
7259 | npn_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset, hf->ett.hs_ext_npn, NULL((void*)0), "Next Protocol Negotiation");
7260 |
7261 | while (offset < offset_end) {
7262 | /* non-empty, 8-bit length prefixed strings means range 1..255 */
7263 | if (!ssl_add_vector(hf, tvb, pinfo, npn_tree, offset, offset_end, &npn_length,
7264 | hf->hf.hs_ext_npn_str_len, 1, UINT8_MAX(255))) {
7265 | return offset_end;
7266 | }
7267 | offset++;
7268 |
7269 | proto_tree_add_item(npn_tree, hf->hf.hs_ext_npn_str,
7270 | tvb, offset, npn_length, ENC_ASCII0x00000000|ENC_NA0x00000000);
7271 | offset += npn_length;
7272 | }
7273 |
7274 | return offset;
7275 | }
7276 |
7277 | static int
7278 | ssl_dissect_hnd_hello_ext_reneg_info(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7279 | packet_info *pinfo, proto_tree *tree,
7280 | uint32_t offset, uint32_t offset_end)
7281 | {
7282 | /* https://tools.ietf.org/html/rfc5746#section-3.2
7283 | * struct {
7284 | * opaque renegotiated_connection<0..255>;
7285 | * } RenegotiationInfo;
7286 | *
7287 | */
7288 | proto_tree *reneg_info_tree;
7289 | uint32_t reneg_info_length;
7290 |
7291 | reneg_info_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset, hf->ett.hs_ext_reneg_info, NULL((void*)0), "Renegotiation Info extension");
7292 |
7293 | /* opaque renegotiated_connection<0..255> */
7294 | if (!ssl_add_vector(hf, tvb, pinfo, reneg_info_tree, offset, offset_end, &reneg_info_length,
7295 | hf->hf.hs_ext_reneg_info_len, 0, 255)) {
7296 | return offset_end;
7297 | }
7298 | offset++;
7299 |
7300 | if (reneg_info_length > 0) {
7301 | proto_tree_add_item(reneg_info_tree, hf->hf.hs_ext_reneg_info, tvb, offset, reneg_info_length, ENC_NA0x00000000);
7302 | offset += reneg_info_length;
7303 | }
7304 |
7305 | return offset;
7306 | }
7307 |
7308 | static int
7309 | ssl_dissect_hnd_hello_ext_key_share_entry(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7310 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7311 | const char **group_name_out)
7312 | {
7313 | /* RFC 8446 Section 4.2.8
7314 | * struct {
7315 | * NamedGroup group;
7316 | * opaque key_exchange<1..2^16-1>;
7317 | * } KeyShareEntry;
7318 | */
7319 | uint32_t key_exchange_length, group;
7320 | proto_tree *ks_tree;
7321 |
7322 | ks_tree = proto_tree_add_subtree(tree, tvb, offset, 4, hf->ett.hs_ext_key_share_ks, NULL((void*)0), "Key Share Entry");
7323 |
7324 | proto_tree_add_item_ret_uint(ks_tree, hf->hf.hs_ext_key_share_group, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &group);
7325 | offset += 2;
7326 | const char *group_name = val_to_str(pinfo->pool, group, ssl_extension_curves, "Unknown (%u)");
7327 | proto_item_append_text(ks_tree, ": Group: %s", group_name);
7328 | if (group_name_out) {
7329 | *group_name_out = !IS_GREASE_TLS(group)((((group) & 0x0f0f) == 0x0a0a) && (((group) & 0xff) == (((group)>>8) & 0xff))) ? group_name : NULL((void*)0);
7330 | }
7331 |
7332 | /* opaque key_exchange<1..2^16-1> */
7333 | if (!ssl_add_vector(hf, tvb, pinfo, ks_tree, offset, offset_end, &key_exchange_length,
7334 | hf->hf.hs_ext_key_share_key_exchange_length, 1, UINT16_MAX(65535))) {
7335 | return offset_end; /* Bad (possible truncated) length, skip to end of KeyShare extension. */
7336 | }
7337 | offset += 2;
7338 | proto_item_set_len(ks_tree, 2 + 2 + key_exchange_length);
7339 | proto_item_append_text(ks_tree, ", Key Exchange length: %u", key_exchange_length);
7340 |
7341 | proto_tree_add_item(ks_tree, hf->hf.hs_ext_key_share_key_exchange, tvb, offset, key_exchange_length, ENC_NA0x00000000);
7342 | offset += key_exchange_length;
7343 |
7344 | return offset;
7345 | }
7346 |
7347 | static int
7348 | ssl_dissect_hnd_hello_ext_key_share(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7349 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7350 | uint8_t hnd_type, SslDecryptSession *ssl)
7351 | {
7352 | proto_tree *key_share_tree;
7353 | uint32_t next_offset;
7354 | uint32_t client_shares_length;
7355 | uint32_t group;
7356 | const char *group_name = NULL((void*)0);
7357 |
7358 | if (offset_end <= offset) { /* Check if ext_len == 0 and "overflow" (offset + ext_len) > uint32_t) */
7359 | return offset;
7360 | }
7361 |
7362 | key_share_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset, hf->ett.hs_ext_key_share, NULL((void*)0), "Key Share extension");
7363 |
7364 | switch(hnd_type){
7365 | case SSL_HND_CLIENT_HELLO:
7366 | /* KeyShareEntry client_shares<0..2^16-1> */
7367 | if (!ssl_add_vector(hf, tvb, pinfo, key_share_tree, offset, offset_end, &client_shares_length,
7368 | hf->hf.hs_ext_key_share_client_length, 0, UINT16_MAX(65535))) {
7369 | return offset_end;
7370 | }
7371 | offset += 2;
7372 | next_offset = offset + client_shares_length;
7373 | const char *sep = " ";
7374 | while (offset + 4 <= next_offset) { /* (NamedGroup (2 bytes), key_exchange (1 byte for length, 1 byte minimum data) */
7375 | offset = ssl_dissect_hnd_hello_ext_key_share_entry(hf, tvb, pinfo, key_share_tree, offset, next_offset, &group_name);
7376 | if (group_name) {
7377 | proto_item_append_text(tree, "%s%s", sep, group_name);
7378 | sep = ", ";
7379 | }
7380 | }
7381 | if (!ssl_end_vector(hf, tvb, pinfo, key_share_tree, offset, next_offset)) {
7382 | return next_offset;
7383 | }
7384 | break;
7385 | case SSL_HND_SERVER_HELLO:
7386 | if (ssl) {
7387 | ssl->has_key_share = true1;
7388 | }
7389 | offset = ssl_dissect_hnd_hello_ext_key_share_entry(hf, tvb, pinfo, key_share_tree, offset, offset_end, &group_name);
7390 | if (group_name) {
7391 | proto_item_append_text(tree, " %s", group_name);
7392 | }
7393 | break;
7394 | case SSL_HND_HELLO_RETRY_REQUEST:
7395 | proto_tree_add_item_ret_uint(key_share_tree, hf->hf.hs_ext_key_share_selected_group, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &group);
7396 | offset += 2;
7397 | group_name = val_to_str(pinfo->pool, group, ssl_extension_curves, "Unknown (%u)");
7398 | proto_item_append_text(tree, " %s", group_name);
7399 | break;
7400 | default: /* no default */
7401 | break;
7402 | }
7403 |
7404 | return offset;
7405 | }
7406 |
7407 | static int
7408 | ssl_dissect_hnd_hello_ext_pre_shared_key(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7409 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7410 | uint8_t hnd_type, SslDecryptSession *ssl)
7411 | {
7412 | /* RFC 8446 Section 4.2.11
7413 | * struct {
7414 | * opaque identity<1..2^16-1>;
7415 | * uint32 obfuscated_ticket_age;
7416 | * } PskIdentity;
7417 | * opaque PskBinderEntry<32..255>;
7418 | * struct {
7419 | * select (Handshake.msg_type) {
7420 | * case client_hello:
7421 | * PskIdentity identities<7..2^16-1>;
7422 | * PskBinderEntry binders<33..2^16-1>;
7423 | * case server_hello:
7424 | * uint16 selected_identity;
7425 | * };
7426 | * } PreSharedKeyExtension;
7427 | */
7428 |
7429 | proto_tree *psk_tree;
7430 |
7431 | psk_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset, hf->ett.hs_ext_pre_shared_key, NULL((void*)0), "Pre-Shared Key extension");
7432 |
7433 | switch (hnd_type){
7434 | case SSL_HND_CLIENT_HELLO: {
7435 | uint32_t identities_length, identities_end, binders_length;
7436 |
7437 | /* PskIdentity identities<7..2^16-1> */
7438 | if (!ssl_add_vector(hf, tvb, pinfo, psk_tree, offset, offset_end, &identities_length,
7439 | hf->hf.hs_ext_psk_identities_length, 7, UINT16_MAX(65535))) {
7440 | return offset_end;
7441 | }
7442 | offset += 2;
7443 | identities_end = offset + identities_length;
7444 |
7445 | while (offset < identities_end) {
7446 | uint32_t identity_length;
7447 | proto_tree *identity_tree;
7448 |
7449 | identity_tree = proto_tree_add_subtree(psk_tree, tvb, offset, 4, hf->ett.hs_ext_psk_identity, NULL((void*)0), "PSK Identity (");
7450 |
7451 | /* opaque identity<1..2^16-1> */
7452 | if (!ssl_add_vector(hf, tvb, pinfo, identity_tree, offset, identities_end, &identity_length,
7453 | hf->hf.hs_ext_psk_identity_identity_length, 1, UINT16_MAX(65535))) {
7454 | return identities_end;
7455 | }
7456 | offset += 2;
7457 | proto_item_append_text(identity_tree, "length: %u)", identity_length);
7458 |
7459 | proto_tree_add_item(identity_tree, hf->hf.hs_ext_psk_identity_identity, tvb, offset, identity_length, ENC_BIG_ENDIAN0x00000000);
7460 | offset += identity_length;
7461 |
7462 | proto_tree_add_item(identity_tree, hf->hf.hs_ext_psk_identity_obfuscated_ticket_age, tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
7463 | offset += 4;
7464 |
7465 | proto_item_set_len(identity_tree, 2 + identity_length + 4);
7466 | }
7467 | if (!ssl_end_vector(hf, tvb, pinfo, psk_tree, offset, identities_end)) {
7468 | offset = identities_end;
7469 | }
7470 |
7471 | /* PskBinderEntry binders<33..2^16-1> */
7472 | if (!ssl_add_vector(hf, tvb, pinfo, psk_tree, offset, offset_end, &binders_length,
7473 | hf->hf.hs_ext_psk_binders_length, 33, UINT16_MAX(65535))) {
7474 | return offset_end;
7475 | }
7476 | offset += 2;
7477 |
7478 | proto_item *binders_item;
7479 | proto_tree *binders_tree;
7480 | binders_item = proto_tree_add_item(psk_tree, hf->hf.hs_ext_psk_binders, tvb, offset, binders_length, ENC_NA0x00000000);
7481 | binders_tree = proto_item_add_subtree(binders_item, hf->ett.hs_ext_psk_binders);
7482 | uint32_t binders_end = offset + binders_length;
7483 | while (offset < binders_end) {
7484 | uint32_t binder_length;
7485 | proto_item *binder_item;
7486 | proto_tree *binder_tree;
7487 |
7488 | binder_item = proto_tree_add_item(binders_tree, hf->hf.hs_ext_psk_binder, tvb, offset, 1, ENC_NA0x00000000);
7489 | binder_tree = proto_item_add_subtree(binder_item, hf->ett.hs_ext_psk_binder);
7490 |
7491 | /* opaque PskBinderEntry<32..255>; */
7492 | if (!ssl_add_vector(hf, tvb, pinfo, binder_tree, offset, binders_end, &binder_length,
7493 | hf->hf.hs_ext_psk_binder_binder_length, 32, 255)) {
7494 | return binders_end;
7495 | }
7496 | offset += 1;
7497 | proto_item_append_text(binder_tree, " (length: %u)", binder_length);
7498 |
7499 | proto_tree_add_item(binder_tree, hf->hf.hs_ext_psk_binder_binder, tvb, offset, binder_length, ENC_BIG_ENDIAN0x00000000);
7500 | offset += binder_length;
7501 |
7502 | proto_item_set_end(binder_item, tvb, offset);
7503 | }
7504 | }
7505 | break;
7506 | case SSL_HND_SERVER_HELLO: {
7507 | if (ssl) {
7508 | ssl_debug_printf("%s found pre_shared_key extension\n", G_STRFUNC((const char*) (__func__)));
7509 | ssl->has_psk = true1;
7510 | }
7511 | proto_tree_add_item(psk_tree, hf->hf.hs_ext_psk_identity_selected, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
7512 | offset += 2;
7513 | }
7514 | break;
7515 | default:
7516 | break;
7517 | }
7518 |
7519 | return offset;
7520 | }
7521 |
7522 | static uint32_t
7523 | ssl_dissect_hnd_hello_ext_early_data(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo _U___attribute__((unused)),
7524 | proto_tree *tree, uint32_t offset, uint32_t offset_end _U___attribute__((unused)),
7525 | uint8_t hnd_type, SslDecryptSession *ssl)
7526 | {
7527 | /* RFC 8446 Section 4.2.10
7528 | * struct {} Empty;
7529 | * struct {
7530 | * select (Handshake.msg_type) {
7531 | * case new_session_ticket: uint32 max_early_data_size;
7532 | * case client_hello: Empty;
7533 | * case encrypted_extensions: Empty;
7534 | * };
7535 | * } EarlyDataIndication;
7536 | */
7537 | switch (hnd_type) {
7538 | case SSL_HND_CLIENT_HELLO:
7539 | /* Remember that early_data will follow the handshake. */
7540 | if (ssl) {
7541 | ssl_debug_printf("%s found early_data extension\n", G_STRFUNC((const char*) (__func__)));
7542 | ssl->has_early_data = true1;
7543 | }
7544 | break;
7545 | case SSL_HND_NEWSESSION_TICKET:
7546 | proto_tree_add_item(tree, hf->hf.hs_ext_max_early_data_size, tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
7547 | offset += 4;
7548 | break;
7549 | default:
7550 | break;
7551 | }
7552 | return offset;
7553 | }
7554 |
7555 | static uint16_t
7556 | tls_try_get_version(bool_Bool is_dtls, uint16_t version, uint8_t *draft_version)
7557 | {
7558 | if (draft_version) {
7559 | *draft_version = 0;
7560 | }
7561 | if (!is_dtls) {
7562 | uint8_t tls13_draft = extract_tls13_draft_version(version);
7563 | if (tls13_draft != 0) {
7564 | /* This is TLS 1.3 (a draft version). */
7565 | if (draft_version) {
7566 | *draft_version = tls13_draft;
7567 | }
7568 | version = TLSV1DOT3_VERSION0x304;
7569 | }
7570 | if (version == 0xfb17 || version == 0xfb1a) {
7571 | /* Unofficial TLS 1.3 draft version for Facebook fizz. */
7572 | tls13_draft = (uint8_t)version;
7573 | if (draft_version) {
7574 | *draft_version = tls13_draft;
7575 | }
7576 | version = TLSV1DOT3_VERSION0x304;
7577 | }
7578 | }
7579 |
7580 | switch (version) {
7581 | case SSLV3_VERSION0x300:
7582 | case TLSV1_VERSION0x301:
7583 | case TLSV1DOT1_VERSION0x302:
7584 | case TLSV1DOT2_VERSION0x303:
7585 | case TLSV1DOT3_VERSION0x304:
7586 | case TLCPV1_VERSION0x101:
7587 | if (is_dtls)
7588 | return SSL_VER_UNKNOWN0;
7589 | break;
7590 |
7591 | case DTLSV1DOT0_VERSION0xfeff:
7592 | case DTLSV1DOT0_OPENSSL_VERSION0x100:
7593 | case DTLSV1DOT2_VERSION0xfefd:
7594 | case DTLSV1DOT3_VERSION0xfefc:
7595 | if (!is_dtls)
7596 | return SSL_VER_UNKNOWN0;
7597 | break;
7598 |
7599 | default: /* invalid version number */
7600 | return SSL_VER_UNKNOWN0;
7601 | }
7602 |
7603 | return version;
7604 | }
7605 |
7606 | static int
7607 | ssl_dissect_hnd_hello_ext_supported_versions(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7608 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7609 | SslSession *session, bool_Bool is_dtls, ja4_data_t *ja4_data)
7610 | {
7611 |
7612 | /* RFC 8446 Section 4.2.1
7613 | * struct {
7614 | * ProtocolVersion versions<2..254>; // ClientHello
7615 | * } SupportedVersions;
7616 | * Note that ServerHello and HelloRetryRequest are handled by the caller.
7617 | */
7618 | uint32_t versions_length, next_offset;
7619 | /* ProtocolVersion versions<2..254> */
7620 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &versions_length,
7621 | hf->hf.hs_ext_supported_versions_len, 2, 254)) {
7622 | return offset_end;
7623 | }
7624 | offset++;
7625 | next_offset = offset + versions_length;
7626 |
7627 | unsigned version;
7628 | unsigned current_version, lowest_version = SSL_VER_UNKNOWN0;
7629 | uint8_t draft_version, max_draft_version = 0;
7630 | const char *sep = " ";
7631 | while (offset + 2 <= next_offset) {
7632 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_ext_supported_version, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &version);
7633 | offset += 2;
7634 |
7635 | if (!IS_GREASE_TLS(version)((((version) & 0x0f0f) == 0x0a0a) && (((version) & 0xff) == (((version)>>8) & 0xff)))) {
7636 | proto_item_append_text(tree, "%s%s", sep, val_to_str(pinfo->pool, version, ssl_versions, "Unknown (0x%04x)"));
7637 | sep = ", ";
7638 | }
7639 |
7640 | current_version = tls_try_get_version(is_dtls, version, &draft_version);
7641 | if (session->version == SSL_VER_UNKNOWN0) {
7642 | if (lowest_version == SSL_VER_UNKNOWN0) {
7643 | lowest_version = current_version;
7644 | } else if (current_version != SSL_VER_UNKNOWN0) {
7645 | if (!is_dtls) {
7646 | lowest_version = MIN(lowest_version, current_version)(((lowest_version) < (current_version)) ? (lowest_version) : (current_version));
7647 | } else {
7648 | lowest_version = MAX(lowest_version, current_version)(((lowest_version) > (current_version)) ? (lowest_version) : (current_version));
7649 | }
7650 | }
7651 | }
7652 | max_draft_version = MAX(draft_version, max_draft_version)(((draft_version) > (max_draft_version)) ? (draft_version) : (max_draft_version));
7653 | if (ja4_data && !IS_GREASE_TLS(version)((((version) & 0x0f0f) == 0x0a0a) && (((version) & 0xff) == (((version)>>8) & 0xff)))) {
7654 | /* The DTLS version numbers get mapped to "00" for unknown per
7655 | * JA4 spec, but if JA4 ever does support DTLS we'll probably
7656 | * need to take the MIN instead of MAX here for DTLS.
7657 | */
7658 | ja4_data->max_version = MAX(version, ja4_data->max_version)(((version) > (ja4_data->max_version)) ? (version) : (ja4_data ->max_version));
7659 | }
7660 | }
7661 | if (session->version == SSL_VER_UNKNOWN0 && lowest_version != SSL_VER_UNKNOWN0) {
7662 | col_set_str(pinfo->cinfo, COL_PROTOCOL,
7663 | val_to_str_const(version, ssl_version_short_names, is_dtls ? "DTLS" : "TLS"));
7664 | }
7665 | if (!ssl_end_vector(hf, tvb, pinfo, tree, offset, next_offset)) {
7666 | offset = next_offset;
7667 | }
7668 |
7669 | /* XXX remove this when draft 19 support is dropped,
7670 | * this is only required for early data decryption. */
7671 | if (max_draft_version) {
7672 | session->tls13_draft_version = max_draft_version;
7673 | }
7674 |
7675 | return offset;
7676 | }
7677 |
7678 | static int
7679 | ssl_dissect_hnd_hello_ext_cookie(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7680 | packet_info *pinfo, proto_tree *tree,
7681 | uint32_t offset, uint32_t offset_end)
7682 | {
7683 | /* RFC 8446 Section 4.2.2
7684 | * struct {
7685 | * opaque cookie<1..2^16-1>;
7686 | * } Cookie;
7687 | */
7688 | uint32_t cookie_length;
7689 | /* opaque cookie<1..2^16-1> */
7690 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &cookie_length,
7691 | hf->hf.hs_ext_cookie_len, 1, UINT16_MAX(65535))) {
7692 | return offset_end;
7693 | }
7694 | offset += 2;
7695 |
7696 | proto_tree_add_item(tree, hf->hf.hs_ext_cookie, tvb, offset, cookie_length, ENC_NA0x00000000);
7697 | offset += cookie_length;
7698 |
7699 | return offset;
7700 | }
7701 |
7702 | static int
7703 | ssl_dissect_hnd_hello_ext_psk_key_exchange_modes(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7704 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
7705 | {
7706 | /* RFC 8446 Section 4.2.9
7707 | * enum { psk_ke(0), psk_dhe_ke(1), (255) } PskKeyExchangeMode;
7708 | *
7709 | * struct {
7710 | * PskKeyExchangeMode ke_modes<1..255>;
7711 | * } PskKeyExchangeModes;
7712 | */
7713 | uint32_t ke_modes_length, next_offset;
7714 |
7715 | /* PskKeyExchangeMode ke_modes<1..255> */
7716 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &ke_modes_length,
7717 | hf->hf.hs_ext_psk_ke_modes_length, 1, 255)) {
7718 | return offset_end;
7719 | }
7720 | offset++;
7721 | next_offset = offset + ke_modes_length;
7722 |
7723 | while (offset < next_offset) {
7724 | proto_tree_add_item(tree, hf->hf.hs_ext_psk_ke_mode, tvb, offset, 1, ENC_NA0x00000000);
7725 | offset++;
7726 | }
7727 |
7728 | return offset;
7729 | }
7730 |
7731 | static uint32_t
7732 | ssl_dissect_hnd_hello_ext_certificate_authorities(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7733 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
7734 | {
7735 | /* RFC 8446 Section 4.2.4
7736 | * opaque DistinguishedName<1..2^16-1>;
7737 | * struct {
7738 | * DistinguishedName authorities<3..2^16-1>;
7739 | * } CertificateAuthoritiesExtension;
7740 | */
7741 | return tls_dissect_certificate_authorities(hf, tvb, pinfo, tree, offset, offset_end);
7742 | }
7743 |
7744 | static int
7745 | ssl_dissect_hnd_hello_ext_oid_filters(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7746 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
7747 | {
7748 | /* RFC 8446 Section 4.2.5
7749 | * struct {
7750 | * opaque certificate_extension_oid<1..2^8-1>;
7751 | * opaque certificate_extension_values<0..2^16-1>;
7752 | * } OIDFilter;
7753 | * struct {
7754 | * OIDFilter filters<0..2^16-1>;
7755 | * } OIDFilterExtension;
7756 | */
7757 | proto_tree *subtree;
7758 | uint32_t filters_length, oid_length, values_length, value_offset;
7759 | asn1_ctx_t asn1_ctx;
7760 | const char *oid, *name;
7761 |
7762 | /* OIDFilter filters<0..2^16-1> */
7763 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &filters_length,
7764 | hf->hf.hs_ext_psk_ke_modes_length, 0, UINT16_MAX(65535))) {
7765 | return offset_end;
7766 | }
7767 | offset += 2;
7768 | offset_end = offset + filters_length;
7769 |
7770 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
7771 |
7772 | while (offset < offset_end) {
7773 | subtree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
7774 | hf->ett.hs_ext_oid_filter, NULL((void*)0), "OID Filter");
7775 |
7776 | /* opaque certificate_extension_oid<1..2^8-1> */
7777 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, offset_end, &oid_length,
7778 | hf->hf.hs_ext_oid_filters_oid_length, 1, UINT8_MAX(255))) {
7779 | return offset_end;
7780 | }
7781 | offset++;
7782 | dissect_ber_object_identifier_str(false0, &asn1_ctx, subtree, tvb, offset,
7783 | hf->hf.hs_ext_oid_filters_oid, &oid);
7784 | offset += oid_length;
7785 |
7786 | /* Append OID to tree label */
7787 | name = oid_resolved_from_string(pinfo->pool, oid);
7788 | proto_item_append_text(subtree, " (%s)", name ? name : oid);
7789 |
7790 | /* opaque certificate_extension_values<0..2^16-1> */
7791 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, offset_end, &values_length,
7792 | hf->hf.hs_ext_oid_filters_values_length, 0, UINT16_MAX(65535))) {
7793 | return offset_end;
7794 | }
7795 | offset += 2;
7796 | proto_item_set_len(subtree, 1 + oid_length + 2 + values_length);
7797 | if (values_length > 0) {
7798 | value_offset = offset;
7799 | value_offset = dissect_ber_identifier(pinfo, subtree, tvb, value_offset, NULL((void*)0), NULL((void*)0), NULL((void*)0));
7800 | value_offset = dissect_ber_length(pinfo, subtree, tvb, value_offset, NULL((void*)0), NULL((void*)0));
7801 | call_ber_oid_callback(oid, tvb, value_offset, pinfo, subtree, NULL((void*)0));
7802 | }
7803 | offset += values_length;
7804 | }
7805 |
7806 | return offset;
7807 | }
7808 |
7809 | static int
7810 | ssl_dissect_hnd_hello_ext_server_name(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7811 | packet_info *pinfo, proto_tree *tree,
7812 | uint32_t offset, uint32_t offset_end)
7813 | {
7814 | /* https://tools.ietf.org/html/rfc6066#section-3
7815 | *
7816 | * struct {
7817 | * NameType name_type;
7818 | * select (name_type) {
7819 | * case host_name: HostName;
7820 | * } name;
7821 | * } ServerName;
7822 | *
7823 | * enum {
7824 | * host_name(0), (255)
7825 | * } NameType;
7826 | *
7827 | * opaque HostName<1..2^16-1>;
7828 | *
7829 | * struct {
7830 | * ServerName server_name_list<1..2^16-1>
7831 | * } ServerNameList;
7832 | */
7833 | proto_tree *server_name_tree;
7834 | uint32_t list_length, server_name_length, next_offset;
7835 |
7836 | /* The server SHALL include "server_name" extension with empty data. */
7837 | if (offset == offset_end) {
7838 | return offset;
7839 | }
7840 |
7841 | server_name_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset, hf->ett.hs_ext_server_name, NULL((void*)0), "Server Name Indication extension");
7842 |
7843 | /* ServerName server_name_list<1..2^16-1> */
7844 | if (!ssl_add_vector(hf, tvb, pinfo, server_name_tree, offset, offset_end, &list_length,
7845 | hf->hf.hs_ext_server_name_list_len, 1, UINT16_MAX(65535))) {
7846 | return offset_end;
7847 | }
7848 | offset += 2;
7849 | next_offset = offset + list_length;
7850 |
7851 | while (offset < next_offset) {
7852 | uint32_t name_type;
7853 | const char *server_name = NULL((void*)0);
7854 | proto_tree_add_item_ret_uint(server_name_tree, hf->hf.hs_ext_server_name_type,
7855 | tvb, offset, 1, ENC_NA0x00000000, &name_type);
7856 | offset++;
7857 |
7858 | /* opaque HostName<1..2^16-1> */
7859 | if (!ssl_add_vector(hf, tvb, pinfo, server_name_tree, offset, next_offset, &server_name_length,
7860 | hf->hf.hs_ext_server_name_len, 1, UINT16_MAX(65535))) {
7861 | return next_offset;
7862 | }
7863 | offset += 2;
7864 |
7865 | proto_tree_add_item_ret_string(server_name_tree, hf->hf.hs_ext_server_name,
7866 | tvb, offset, server_name_length, ENC_ASCII0x00000000|ENC_NA0x00000000,
7867 | pinfo->pool, (const uint8_t**)&server_name);
7868 | offset += server_name_length;
7869 | // Each type must only occur once, so we don't check for duplicates.
7870 | if (name_type == 0) {
7871 | proto_item_append_text(tree, " name=%s", server_name);
7872 | col_append_fstr(pinfo->cinfo, COL_INFO, " (SNI=%s)", server_name);
7873 |
7874 | if (gbl_resolv_flags.handshake_sni_addr_resolution) {
7875 | // Client Hello: Client (Src) -> Server (Dst)
7876 | switch (pinfo->dst.type) {
7877 | case AT_IPv4:
7878 | if (pinfo->dst.len == sizeof(uint32_t)) {
7879 | add_ipv4_name(*(uint32_t *)pinfo->dst.data, server_name, false0);
7880 | }
7881 | break;
7882 | case AT_IPv6:
7883 | if (pinfo->dst.len == sizeof(ws_in6_addr)) {
7884 | add_ipv6_name(pinfo->dst.data, server_name, false0);
7885 | }
7886 | break;
7887 | }
7888 | }
7889 | }
7890 | }
7891 | return offset;
7892 | }
7893 |
7894 | static int
7895 | ssl_dissect_hnd_hello_ext_session_ticket(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7896 | proto_tree *tree, uint32_t offset, uint32_t offset_end, uint8_t hnd_type, SslDecryptSession *ssl)
7897 | {
7898 | unsigned ext_len = offset_end - offset;
7899 | if (hnd_type == SSL_HND_CLIENT_HELLO && ssl && ext_len != 0) {
7900 | tvb_ensure_bytes_exist(tvb, offset, ext_len);
7901 | /* Save the Session Ticket such that it can be used as identifier for
7902 | * restoring a previous Master Secret (in ChangeCipherSpec) */
7903 | ssl->session_ticket.data = (unsigned char*)wmem_realloc(wmem_file_scope(),
7904 | ssl->session_ticket.data, ext_len);
7905 | ssl->session_ticket.data_len = ext_len;
7906 | tvb_memcpy(tvb,ssl->session_ticket.data, offset, ext_len);
7907 | }
7908 | proto_tree_add_item(tree, hf->hf.hs_ext_session_ticket,
7909 | tvb, offset, ext_len, ENC_NA0x00000000);
7910 | return offset + ext_len;
7911 | }
7912 |
7913 | static int
7914 | ssl_dissect_hnd_hello_ext_cert_type(ssl_common_dissect_t *hf, tvbuff_t *tvb,
7915 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7916 | uint8_t hnd_type, uint16_t ext_type, SslSession *session)
7917 | {
7918 | uint8_t cert_list_length;
7919 | uint8_t cert_type;
7920 | proto_tree *cert_list_tree;
7921 | proto_item *ti;
7922 |
7923 | switch(hnd_type){
7924 | case SSL_HND_CLIENT_HELLO:
7925 | cert_list_length = tvb_get_uint8(tvb, offset);
7926 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_types_len,
7927 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
7928 | offset += 1;
7929 | if (offset_end - offset != (uint32_t)cert_list_length)
7930 | return offset;
7931 |
7932 | ti = proto_tree_add_item(tree, hf->hf.hs_ext_cert_types, tvb, offset,
7933 | cert_list_length, cert_list_length);
7934 | proto_item_append_text(ti, " (%d)", cert_list_length);
7935 |
7936 | /* make this a subtree */
7937 | cert_list_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_cert_types);
7938 |
7939 | /* loop over all point formats */
7940 | while (cert_list_length > 0)
7941 | {
7942 | proto_tree_add_item(cert_list_tree, hf->hf.hs_ext_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
7943 | offset++;
7944 | cert_list_length--;
7945 | }
7946 | break;
7947 | case SSL_HND_SERVER_HELLO:
7948 | case SSL_HND_ENCRYPTED_EXTENSIONS:
7949 | case SSL_HND_CERTIFICATE:
7950 | cert_type = tvb_get_uint8(tvb, offset);
7951 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
7952 | offset += 1;
7953 | if (ext_type == SSL_HND_HELLO_EXT_CERT_TYPE9 || ext_type == SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE19) {
7954 | session->client_cert_type = cert_type;
7955 | }
7956 | if (ext_type == SSL_HND_HELLO_EXT_CERT_TYPE9 || ext_type == SSL_HND_HELLO_EXT_SERVER_CERT_TYPE20) {
7957 | session->server_cert_type = cert_type;
7958 | }
7959 | break;
7960 | default: /* no default */
7961 | break;
7962 | }
7963 |
7964 | return offset;
7965 | }
7966 |
7967 | static uint32_t
7968 | ssl_dissect_hnd_hello_ext_compress_certificate(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
7969 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
7970 | uint8_t hnd_type, SslDecryptSession *ssl _U___attribute__((unused)))
7971 | {
7972 | uint32_t compress_certificate_algorithms_length, next_offset;
7973 |
7974 | /* https://tools.ietf.org/html/draft-ietf-tls-certificate-compression-03#section-3.0
7975 | * enum {
7976 | * zlib(1),
7977 | * brotli(2),
7978 | * (65535)
7979 | * } CertificateCompressionAlgorithm;
7980 | *
7981 | * struct {
7982 | * CertificateCompressionAlgorithm algorithms<1..2^8-1>;
7983 | * } CertificateCompressionAlgorithms;
7984 | */
7985 | switch (hnd_type) {
7986 | case SSL_HND_CLIENT_HELLO:
7987 | case SSL_HND_CERT_REQUEST:
7988 | /* CertificateCompressionAlgorithm algorithms<1..2^8-1>;*/
7989 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &compress_certificate_algorithms_length,
7990 | hf->hf.hs_ext_compress_certificate_algorithms_length, 1, UINT8_MAX(255)-1)) {
7991 | return offset_end;
7992 | }
7993 | offset += 1;
7994 | next_offset = offset + compress_certificate_algorithms_length;
7995 |
7996 | while (offset < next_offset) {
7997 | proto_tree_add_item(tree, hf->hf.hs_ext_compress_certificate_algorithm,
7998 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
7999 | offset += 2;
8000 | }
8001 | break;
8002 | default:
8003 | break;
8004 | }
8005 |
8006 | return offset;
8007 | }
8008 |
8009 | static uint32_t
8010 | ssl_dissect_hnd_hello_ext_token_binding(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8011 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
8012 | uint8_t hnd_type, SslDecryptSession *ssl _U___attribute__((unused)))
8013 | {
8014 | uint32_t key_parameters_length, next_offset;
8015 | proto_item *p_ti;
8016 | proto_tree *p_tree;
8017 |
8018 | /* RFC 8472
8019 | *
8020 | * struct {
8021 | * uint8 major;
8022 | * uint8 minor;
8023 | * } TB_ProtocolVersion;
8024 | *
8025 | * enum {
8026 | * rsa2048_pkcs1.5(0), rsa2048_pss(1), ecdsap256(2), (255)
8027 | * } TokenBindingKeyParameters;
8028 | *
8029 | * struct {
8030 | * TB_ProtocolVersion token_binding_version;
8031 | * TokenBindingKeyParameters key_parameters_list<1..2^8-1>
8032 | * } TokenBindingParameters;
8033 | */
8034 |
8035 | switch (hnd_type) {
8036 | case SSL_HND_CLIENT_HELLO:
8037 | case SSL_HND_SERVER_HELLO:
8038 | proto_tree_add_item(tree, hf->hf.hs_ext_token_binding_version_major, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
8039 | offset += 1;
8040 | proto_tree_add_item(tree, hf->hf.hs_ext_token_binding_version_minor, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
8041 | offset += 1;
8042 |
8043 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &key_parameters_length,
8044 | hf->hf.hs_ext_token_binding_key_parameters_length, 1, UINT8_MAX(255))) {
8045 | return offset_end;
8046 | }
8047 | offset += 1;
8048 | next_offset = offset + key_parameters_length;
8049 |
8050 | p_ti = proto_tree_add_none_format(tree,
8051 | hf->hf.hs_ext_token_binding_key_parameters,
8052 | tvb, offset, key_parameters_length,
8053 | "Key parameters identifiers (%d identifier%s)",
8054 | key_parameters_length,
8055 | plurality(key_parameters_length, "", "s")((key_parameters_length) == 1 ? ("") : ("s")));
8056 | p_tree = proto_item_add_subtree(p_ti, hf->ett.hs_ext_token_binding_key_parameters);
8057 |
8058 | while (offset < next_offset) {
8059 | proto_tree_add_item(p_tree, hf->hf.hs_ext_token_binding_key_parameter,
8060 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
8061 | offset += 1;
8062 | }
8063 |
8064 | if (!ssl_end_vector(hf, tvb, pinfo, p_tree, offset, next_offset)) {
8065 | offset = next_offset;
8066 | }
8067 |
8068 | break;
8069 | default:
8070 | break;
8071 | }
8072 |
8073 | return offset;
8074 | }
8075 |
8076 | static uint32_t
8077 | ssl_dissect_hnd_hello_ext_quic_transport_parameters(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8078 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
8079 | uint8_t hnd_type, SslDecryptSession *ssl _U___attribute__((unused)))
8080 | {
8081 | bool_Bool use_varint_encoding = true1; // Whether this is draft -27 or newer.
8082 | uint32_t next_offset;
8083 |
8084 | /* https://tools.ietf.org/html/draft-ietf-quic-transport-25#section-18
8085 | *
8086 | * Note: the following structures are not literally defined in the spec,
8087 | * they instead use an ASCII diagram.
8088 | *
8089 | * struct {
8090 | * uint16 id;
8091 | * opaque value<0..2^16-1>;
8092 | * } TransportParameter; // before draft -27
8093 | * TransportParameter TransportParameters<0..2^16-1>; // before draft -27
8094 | *
8095 | * struct {
8096 | * opaque ipv4Address[4];
8097 | * uint16 ipv4Port;
8098 | * opaque ipv6Address[16];
8099 | * uint16 ipv6Port;
8100 | * opaque connectionId<0..18>;
8101 | * opaque statelessResetToken[16];
8102 | * } PreferredAddress;
8103 | */
8104 |
8105 | if (offset_end - offset >= 6 &&
8106 | 2 + (unsigned)tvb_get_ntohs(tvb, offset) == offset_end - offset &&
8107 | 6 + (unsigned)tvb_get_ntohs(tvb, offset + 4) <= offset_end - offset) {
8108 | // Assume encoding of Transport Parameters draft -26 or older with at
8109 | // least one transport parameter that has a valid length.
8110 | use_varint_encoding = false0;
8111 | }
8112 |
8113 | if (use_varint_encoding) {
8114 | next_offset = offset_end;
8115 | } else {
8116 | uint32_t quic_length;
8117 | // Assume draft -26 or earlier.
8118 | /* TransportParameter TransportParameters<0..2^16-1>; */
8119 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &quic_length,
8120 | hf->hf.hs_ext_quictp_len, 0, UINT16_MAX(65535))) {
8121 | return offset_end;
8122 | }
8123 | offset += 2;
8124 | next_offset = offset + quic_length;
8125 | }
8126 |
8127 | while (offset < next_offset) {
8128 | uint64_t parameter_type; /* 62-bit space */
8129 | uint32_t parameter_length;
8130 | proto_tree *parameter_tree;
8131 | uint32_t parameter_end_offset;
8132 | uint64_t value;
8133 | uint32_t i;
8134 | unsigned len = 0;
8135 |
8136 | parameter_tree = proto_tree_add_subtree(tree, tvb, offset, 2, hf->ett.hs_ext_quictp_parameter,
8137 | NULL((void*)0), "Parameter");
8138 | /* TransportParameter ID and Length. */
8139 | if (use_varint_encoding) {
8140 | uint64_t parameter_length64;
8141 | unsigned type_len = 0;
8142 |
8143 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_type,
8144 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &parameter_type, &type_len);
8145 | offset += type_len;
8146 |
8147 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_len,
8148 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &parameter_length64, &len);
8149 | parameter_length = (uint32_t)parameter_length64;
8150 | offset += len;
8151 |
8152 | proto_item_set_len(parameter_tree, type_len + len + parameter_length);
8153 | } else {
8154 | parameter_type = tvb_get_ntohs(tvb, offset);
8155 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_type,
8156 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
8157 | offset += 2;
8158 |
8159 | /* opaque value<0..2^16-1> */
8160 | if (!ssl_add_vector(hf, tvb, pinfo, parameter_tree, offset, next_offset, &parameter_length,
8161 | hf->hf.hs_ext_quictp_parameter_len_old, 0, UINT16_MAX(65535))) {
8162 | return next_offset;
8163 | }
8164 | offset += 2;
8165 |
8166 | proto_item_set_len(parameter_tree, 4 + parameter_length);
8167 | }
8168 |
8169 | if (IS_GREASE_QUIC(parameter_type)((parameter_type) > 27 ? ((((parameter_type) - 27) % 31) == 0) : 0)) {
8170 | proto_item_append_text(parameter_tree, ": GREASE");
8171 | } else {
8172 | proto_item_append_text(parameter_tree, ": %s", val64_to_str_wmem(pinfo->pool, parameter_type, quic_transport_parameter_id, "Unknown 0x%04x"));
8173 | }
8174 |
8175 | proto_item_append_text(parameter_tree, " (len=%u)", parameter_length);
8176 | parameter_end_offset = offset + parameter_length;
8177 |
8178 | /* Omit the value field if the parameter's length is 0. */
8179 | if (parameter_length != 0) {
8180 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_value,
8181 | tvb, offset, parameter_length, ENC_NA0x00000000);
8182 | }
8183 |
8184 | switch (parameter_type) {
8185 | case SSL_HND_QUIC_TP_ORIGINAL_DESTINATION_CONNECTION_ID0x00:
8186 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_original_destination_connection_id,
8187 | tvb, offset, parameter_length, ENC_NA0x00000000);
8188 | offset += parameter_length;
8189 | break;
8190 | case SSL_HND_QUIC_TP_MAX_IDLE_TIMEOUT0x01:
8191 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_max_idle_timeout,
8192 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8193 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u" " ms", value);
8194 | offset += len;
8195 | break;
8196 | case SSL_HND_QUIC_TP_STATELESS_RESET_TOKEN0x02:
8197 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_stateless_reset_token,
8198 | tvb, offset, 16, ENC_BIG_ENDIAN0x00000000);
8199 | quic_add_stateless_reset_token(pinfo, tvb, offset, NULL((void*)0));
8200 | offset += 16;
8201 | break;
8202 | case SSL_HND_QUIC_TP_MAX_UDP_PAYLOAD_SIZE0x03:
8203 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_max_udp_payload_size,
8204 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8205 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8206 | /*TODO display expert info about invalid value (< 1252 or >65527) ? */
8207 | offset += len;
8208 | break;
8209 | case SSL_HND_QUIC_TP_INITIAL_MAX_DATA0x04:
8210 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_data,
8211 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8212 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8213 | offset += len;
8214 | break;
8215 | case SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL0x05:
8216 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_stream_data_bidi_local,
8217 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8218 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8219 | offset += len;
8220 | break;
8221 | case SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE0x06:
8222 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_stream_data_bidi_remote,
8223 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8224 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8225 | offset += len;
8226 | break;
8227 | case SSL_HND_QUIC_TP_INITIAL_MAX_STREAM_DATA_UNI0x07:
8228 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_stream_data_uni,
8229 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8230 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8231 | offset += len;
8232 | break;
8233 | case SSL_HND_QUIC_TP_INITIAL_MAX_STREAMS_UNI0x09:
8234 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_streams_uni,
8235 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8236 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8237 | offset += len;
8238 | break;
8239 | case SSL_HND_QUIC_TP_INITIAL_MAX_STREAMS_BIDI0x08:
8240 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_streams_bidi,
8241 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8242 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8243 | offset += len;
8244 | break;
8245 | case SSL_HND_QUIC_TP_ACK_DELAY_EXPONENT0x0a:
8246 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_ack_delay_exponent,
8247 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, NULL((void*)0), &len);
8248 | /*TODO display multiplier (x8) and expert info about invalid value (> 20) ? */
8249 | offset += len;
8250 | break;
8251 | case SSL_HND_QUIC_TP_MAX_ACK_DELAY0x0b:
8252 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_max_ack_delay,
8253 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8254 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8255 | offset += len;
8256 | break;
8257 | case SSL_HND_QUIC_TP_DISABLE_ACTIVE_MIGRATION0x0c:
8258 | /* No Payload */
8259 | break;
8260 | case SSL_HND_QUIC_TP_PREFERRED_ADDRESS0x0d: {
8261 | uint32_t connectionid_length;
8262 | quic_cid_t cid;
8263 |
8264 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_ipv4address,
8265 | tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
8266 | offset += 4;
8267 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_ipv4port,
8268 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
8269 | offset += 2;
8270 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_ipv6address,
8271 | tvb, offset, 16, ENC_NA0x00000000);
8272 | offset += 16;
8273 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_ipv6port,
8274 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
8275 | offset += 2;
8276 | /* XXX - Should we add these addresses and ports as addresses that the client
8277 | * is allowed / expected to migrate the server address to? Right now we don't
8278 | * enforce that (see RFC 9000 Section 9, which implies that while the client
8279 | * can migrate to whatever address it wants, it can only migrate the server
8280 | * address to the Server's Preferred Address as in 9.6. Also Issue #20165.)
8281 | */
8282 |
8283 | if (!ssl_add_vector(hf, tvb, pinfo, parameter_tree, offset, offset_end, &connectionid_length,
8284 | hf->hf.hs_ext_quictp_parameter_pa_connectionid_length, 0, 20)) {
8285 | break;
8286 | }
8287 | offset += 1;
8288 |
8289 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_connectionid,
8290 | tvb, offset, connectionid_length, ENC_NA0x00000000);
8291 | if (connectionid_length >= 1 && connectionid_length <= QUIC_MAX_CID_LENGTH20) {
8292 | cid.len = connectionid_length;
8293 | // RFC 9000 5.1.1 "If the preferred_address transport
8294 | // parameter is sent, the sequence number of the supplied
8295 | // connection ID is 1."
8296 | cid.seq_num = 1;
8297 | // Multipath draft-07 "Also, the Path Identifier for the
8298 | // connection ID specified in the "preferred address"
8299 | // transport parameter is 0."
8300 | cid.path_id = 0;
8301 | tvb_memcpy(tvb, cid.cid, offset, connectionid_length);
8302 | quic_add_connection(pinfo, &cid);
8303 | }
8304 | offset += connectionid_length;
8305 |
8306 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_pa_statelessresettoken,
8307 | tvb, offset, 16, ENC_NA0x00000000);
8308 | if (connectionid_length >= 1 && connectionid_length <= QUIC_MAX_CID_LENGTH20) {
8309 | quic_add_stateless_reset_token(pinfo, tvb, offset, &cid);
8310 | }
8311 | offset += 16;
8312 | }
8313 | break;
8314 | case SSL_HND_QUIC_TP_ACTIVE_CONNECTION_ID_LIMIT0x0e:
8315 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_active_connection_id_limit,
8316 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8317 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8318 | offset += len;
8319 | break;
8320 | case SSL_HND_QUIC_TP_INITIAL_SOURCE_CONNECTION_ID0x0f:
8321 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_source_connection_id,
8322 | tvb, offset, parameter_length, ENC_NA0x00000000);
8323 | offset += parameter_length;
8324 | break;
8325 | case SSL_HND_QUIC_TP_RETRY_SOURCE_CONNECTION_ID0x10:
8326 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_retry_source_connection_id,
8327 | tvb, offset, parameter_length, ENC_NA0x00000000);
8328 | offset += parameter_length;
8329 | break;
8330 | case SSL_HND_QUIC_TP_MAX_DATAGRAM_FRAME_SIZE0x20:
8331 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_max_datagram_frame_size,
8332 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8333 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8334 | offset += len;
8335 | break;
8336 | case SSL_HND_QUIC_TP_CIBIR_ENCODING0x1000:
8337 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_cibir_encoding_length,
8338 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8339 | proto_item_append_text(parameter_tree, " Length: %" PRIu64"l" "u", value);
8340 | offset += len;
8341 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_cibir_encoding_offset,
8342 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8343 | proto_item_append_text(parameter_tree, ", Offset: %" PRIu64"l" "u", value);
8344 | offset += len;
8345 | break;
8346 | case SSL_HND_QUIC_TP_LOSS_BITS0x1057:
8347 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_loss_bits,
8348 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8349 | if (len > 0) {
8350 | quic_add_loss_bits(pinfo, value);
8351 | }
8352 | offset += 1;
8353 | break;
8354 | case SSL_HND_QUIC_TP_ADDRESS_DISCOVERY0x9f81a176:
8355 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_address_discovery,
8356 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, NULL((void*)0), &len);
8357 | offset += len;
8358 | break;
8359 | case SSL_HND_QUIC_TP_MIN_ACK_DELAY_OLD0xde1a:
8360 | case SSL_HND_QUIC_TP_MIN_ACK_DELAY_DRAFT_V10xFF03DE1A:
8361 | case SSL_HND_QUIC_TP_MIN_ACK_DELAY_DRAFT050xff04de1a:
8362 | case SSL_HND_QUIC_TP_MIN_ACK_DELAY0xff04de1b:
8363 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_min_ack_delay,
8364 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8365 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u", value);
8366 | offset += len;
8367 | break;
8368 | case SSL_HND_QUIC_TP_GOOGLE_USER_AGENT0x3129:
8369 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_user_agent_id,
8370 | tvb, offset, parameter_length, ENC_ASCII0x00000000|ENC_NA0x00000000);
8371 | offset += parameter_length;
8372 | break;
8373 | case SSL_HND_QUIC_TP_GOOGLE_KEY_UPDATE_NOT_YET_SUPPORTED0x312B:
8374 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_key_update_not_yet_supported,
8375 | tvb, offset, parameter_length, ENC_NA0x00000000);
8376 | offset += parameter_length;
8377 | break;
8378 | case SSL_HND_QUIC_TP_GOOGLE_QUIC_VERSION0x4752:
8379 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_quic_version,
8380 | tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
8381 | offset += 4;
8382 | if (hnd_type == SSL_HND_ENCRYPTED_EXTENSIONS) { /* From server */
8383 | uint32_t versions_length;
8384 |
8385 | proto_tree_add_item_ret_uint(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_supported_versions_length,
8386 | tvb, offset, 1, ENC_NA0x00000000, &versions_length);
8387 | offset += 1;
8388 | for (i = 0; i < versions_length / 4; i++) {
8389 | quic_proto_tree_add_version(tvb, parameter_tree,
8390 | hf->hf.hs_ext_quictp_parameter_google_supported_version, offset);
8391 | offset += 4;
8392 | }
8393 | }
8394 | break;
8395 | case SSL_HND_QUIC_TP_GOOGLE_INITIAL_RTT0x3127:
8396 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_initial_rtt,
8397 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8398 | proto_item_append_text(parameter_tree, " %" PRIu64"l" "u" " us", value);
8399 | offset += len;
8400 | break;
8401 | case SSL_HND_QUIC_TP_GOOGLE_SUPPORT_HANDSHAKE_DONE0x312A:
8402 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_support_handshake_done,
8403 | tvb, offset, parameter_length, ENC_NA0x00000000);
8404 | offset += parameter_length;
8405 | break;
8406 | case SSL_HND_QUIC_TP_GOOGLE_QUIC_PARAMS0x4751:
8407 | /* This field was used for non-standard Google-specific parameters encoded as a
8408 | * Google QUIC_CRYPTO CHLO and it has been replaced (version >= T051) by individual
8409 | * parameters. Report it as a bytes blob... */
8410 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_quic_params,
8411 | tvb, offset, parameter_length, ENC_NA0x00000000);
8412 | /* ... and try decoding it: not sure what the first 4 bytes are (but they seems to be always 0) */
8413 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_quic_params_unknown_field,
8414 | tvb, offset, 4, ENC_NA0x00000000);
8415 | dissect_gquic_tags(tvb, pinfo, parameter_tree, offset + 4);
8416 | offset += parameter_length;
8417 | break;
8418 | case SSL_HND_QUIC_TP_GOOGLE_CONNECTION_OPTIONS0x3128:
8419 | proto_tree_add_item(parameter_tree, hf->hf.hs_ext_quictp_parameter_google_connection_options,
8420 | tvb, offset, parameter_length, ENC_NA0x00000000);
8421 | offset += parameter_length;
8422 | break;
8423 | case SSL_HND_QUIC_TP_ENABLE_TIME_STAMP0x7157:
8424 | /* No Payload */
8425 | break;
8426 | case SSL_HND_QUIC_TP_ENABLE_TIME_STAMP_V20x7158:
8427 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_enable_time_stamp_v2,
8428 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8429 | offset += parameter_length;
8430 | break;
8431 | case SSL_HND_QUIC_TP_VERSION_INFORMATION_DRAFT0xff73db:
8432 | case SSL_HND_QUIC_TP_VERSION_INFORMATION0x11:
8433 | quic_proto_tree_add_version(tvb, parameter_tree,
8434 | hf->hf.hs_ext_quictp_parameter_chosen_version, offset);
8435 | offset += 4;
8436 | for (i = 4; i < parameter_length; i += 4) {
8437 | quic_proto_tree_add_version(tvb, parameter_tree,
8438 | hf->hf.hs_ext_quictp_parameter_other_version, offset);
8439 | offset += 4;
8440 | }
8441 | break;
8442 | case SSL_HND_QUIC_TP_GREASE_QUIC_BIT0x2ab2:
8443 | /* No Payload */
8444 | quic_add_grease_quic_bit(pinfo);
8445 | break;
8446 | case SSL_HND_QUIC_TP_FACEBOOK_PARTIAL_RELIABILITY0xFF00:
8447 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_facebook_partial_reliability,
8448 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8449 | offset += parameter_length;
8450 | break;
8451 | case SSL_HND_QUIC_TP_ENABLE_MULTIPATH_DRAFT040x0f739bbc1b666d04:
8452 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_enable_multipath,
8453 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8454 | if (value == 1) {
8455 | quic_add_multipath(pinfo, QUIC_MP_NO_PATH_ID1);
8456 | }
8457 | offset += parameter_length;
8458 | break;
8459 | case SSL_HND_QUIC_TP_ENABLE_MULTIPATH_DRAFT050x0f739bbc1b666d05:
8460 | case SSL_HND_QUIC_TP_ENABLE_MULTIPATH0x0f739bbc1b666d06:
8461 | /* No Payload */
8462 | quic_add_multipath(pinfo, QUIC_MP_NO_PATH_ID1);
8463 | break;
8464 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATHS0x0f739bbc1b666d07:
8465 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_paths,
8466 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8467 | if (value > 1) {
8468 | quic_add_multipath(pinfo, QUIC_MP_PATH_ID2);
8469 | }
8470 | /* multipath draft-07: "The value of the initial_max_paths
8471 | * parameter MUST be at least 2." TODO: Expert Info? */
8472 | offset += parameter_length;
8473 | break;
8474 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT090x0f739bbc1b666d09:
8475 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT110x0f739bbc1b666d11:
8476 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT120x0f739bbc1b666d0c:
8477 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID_DRAFT130x0f739bbc1b666d0d:
8478 | case SSL_HND_QUIC_TP_INITIAL_MAX_PATH_ID0x3e:
8479 | proto_tree_add_item_ret_varint(parameter_tree, hf->hf.hs_ext_quictp_parameter_initial_max_path_id,
8480 | tvb, offset, -1, ENC_VARINT_QUIC0x00000004, &value, &len);
8481 | /* multipath draft-09 and later: "If an endpoint receives an
8482 | * initial_max_path_id transport parameter with value 0, the
8483 | * peer aims to enable the multipath extension without allowing
8484 | * extra paths immediately."
8485 | */
8486 | quic_add_multipath(pinfo, QUIC_MP_PATH_ID2);
8487 | offset += parameter_length;
8488 | break;
8489 | default:
8490 | offset += parameter_length;
8491 | /*TODO display expert info about unknown ? */
8492 | break;
8493 | }
8494 |
8495 | if (!ssl_end_vector(hf, tvb, pinfo, parameter_tree, offset, parameter_end_offset)) {
8496 | /* Dissection did not end at expected location, fix it. */
8497 | offset = parameter_end_offset;
8498 | }
8499 | }
8500 |
8501 | return offset;
8502 | }
8503 |
8504 | static int
8505 | ssl_dissect_hnd_hello_common(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8506 | proto_tree *tree, uint32_t offset,
8507 | SslSession *session, SslDecryptSession *ssl,
8508 | bool_Bool from_server, bool_Bool is_hrr)
8509 | {
8510 | uint8_t sessid_length;
8511 | proto_item *ti;
8512 | proto_tree *rnd_tree;
8513 | proto_tree *ti_rnd;
8514 | proto_tree *ech_confirm_tree;
8515 | uint8_t draft_version = session->tls13_draft_version;
8516 |
8517 | if (ssl) {
8518 | StringInfo *rnd;
8519 | if (from_server)
8520 | rnd = &ssl->server_random;
8521 | else
8522 | rnd = &ssl->client_random;
8523 |
8524 | /* save provided random for later keyring generation */
8525 | tvb_memcpy(tvb, rnd->data, offset, 32);
8526 | rnd->data_len = 32;
8527 | if (from_server)
8528 | ssl->state |= SSL_SERVER_RANDOM(1<<1);
8529 | else
8530 | ssl->state |= SSL_CLIENT_RANDOM(1<<0);
8531 | ssl_debug_printf("%s found %s RANDOM -> state 0x%02X\n", G_STRFUNC((const char*) (__func__)),
8532 | from_server ? "SERVER" : "CLIENT", ssl->state);
8533 | }
8534 |
8535 | if (!from_server && session->client_random.data_len == 0) {
8536 | session->client_random.data_len = 32;
8537 | tvb_memcpy(tvb, session->client_random.data, offset, 32);
8538 | }
8539 |
8540 | ti_rnd = proto_tree_add_item(tree, hf->hf.hs_random, tvb, offset, 32, ENC_NA0x00000000);
8541 |
8542 | if ((session->version != TLSV1DOT3_VERSION0x304) && (session->version != DTLSV1DOT3_VERSION0xfefc)) { /* No time on first bytes random with TLS 1.3 */
8543 |
8544 | rnd_tree = proto_item_add_subtree(ti_rnd, hf->ett.hs_random);
8545 | /* show the time */
8546 | proto_tree_add_item(rnd_tree, hf->hf.hs_random_time,
8547 | tvb, offset, 4, ENC_TIME_SECS0x00000012|ENC_BIG_ENDIAN0x00000000);
8548 | offset += 4;
8549 |
8550 | /* show the random bytes */
8551 | proto_tree_add_item(rnd_tree, hf->hf.hs_random_bytes,
8552 | tvb, offset, 28, ENC_NA0x00000000);
8553 | offset += 28;
8554 | } else {
8555 | if (is_hrr) {
8556 | proto_item_append_text(ti_rnd, " (HelloRetryRequest magic)");
8557 | } else if (from_server && session->ech) {
8558 | ech_confirm_tree = proto_item_add_subtree(ti_rnd, hf->ett.hs_random);
8559 | proto_tree_add_item(ech_confirm_tree, hf->hf.hs_ech_confirm, tvb, offset + 24, 8, ENC_NA0x00000000);
8560 | ti = proto_tree_add_bytes_with_length(ech_confirm_tree, hf->hf.hs_ech_confirm_compute, tvb, offset + 24, 0,
8561 | session->ech_confirmation, 8);
8562 | proto_item_set_generated(ti);
8563 | if (memcmp(session->ech_confirmation, tvb_get_ptr(tvb, offset+24, 8), 8)) {
8564 | expert_add_info(pinfo, ti, &hf->ei.ech_rejected);
8565 | } else {
8566 | expert_add_info(pinfo, ti, &hf->ei.ech_accepted);
8567 | }
8568 | }
8569 |
8570 | offset += 32;
8571 | }
8572 |
8573 | /* No Session ID with TLS 1.3 on Server Hello before draft -22 */
8574 | if (from_server == 0 || !(session->version == TLSV1DOT3_VERSION0x304 && draft_version > 0 && draft_version < 22)) {
8575 | /* show the session id (length followed by actual Session ID) */
8576 | sessid_length = tvb_get_uint8(tvb, offset);
8577 | proto_tree_add_item(tree, hf->hf.hs_session_id_len,
8578 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
8579 | offset++;
8580 |
8581 | if (ssl) {
8582 | /* save the authoritative SID for later use in ChangeCipherSpec.
8583 | * (D)TLS restricts the SID to 32 chars, it does not make sense to
8584 | * save more, so ignore larger ones. To support ECH, also save
8585 | * the SID from the ClientHelloOuter. */
8586 | if (sessid_length <= 32 && (from_server || sessid_length > 0)) {
8587 | tvb_memcpy(tvb, ssl->session_id.data, offset, sessid_length);
8588 | ssl->session_id.data_len = sessid_length;
8589 | }
8590 | }
8591 | if (sessid_length > 0) {
8592 | proto_tree_add_item(tree, hf->hf.hs_session_id,
8593 | tvb, offset, sessid_length, ENC_NA0x00000000);
8594 | offset += sessid_length;
8595 | }
8596 | }
8597 |
8598 | return offset;
8599 | }
8600 |
8601 | static int
8602 | ssl_dissect_hnd_hello_ext_status_request(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8603 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
8604 | bool_Bool has_length)
8605 | {
8606 | /* TLS 1.2/1.3 status_request Client Hello Extension.
8607 | * TLS 1.2 status_request_v2 CertificateStatusRequestItemV2 type.
8608 | * https://tools.ietf.org/html/rfc6066#section-8 (status_request)
8609 | * https://tools.ietf.org/html/rfc6961#section-2.2 (status_request_v2)
8610 | * struct {
8611 | * CertificateStatusType status_type;
8612 | * uint16 request_length; // for status_request_v2
8613 | * select (status_type) {
8614 | * case ocsp: OCSPStatusRequest;
8615 | * case ocsp_multi: OCSPStatusRequest;
8616 | * } request;
8617 | * } CertificateStatusRequest; // CertificateStatusRequestItemV2
8618 | *
8619 | * enum { ocsp(1), ocsp_multi(2), (255) } CertificateStatusType;
8620 | * struct {
8621 | * ResponderID responder_id_list<0..2^16-1>;
8622 | * Extensions request_extensions;
8623 | * } OCSPStatusRequest;
8624 | * opaque ResponderID<1..2^16-1>;
8625 | * opaque Extensions<0..2^16-1>;
8626 | */
8627 | unsigned cert_status_type;
8628 |
8629 | cert_status_type = tvb_get_uint8(tvb, offset);
8630 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_type,
8631 | tvb, offset, 1, ENC_NA0x00000000);
8632 | offset++;
8633 |
8634 | if (has_length) {
8635 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_status_request_len,
8636 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
8637 | offset += 2;
8638 | }
8639 |
8640 | switch (cert_status_type) {
8641 | case SSL_HND_CERT_STATUS_TYPE_OCSP1:
8642 | case SSL_HND_CERT_STATUS_TYPE_OCSP_MULTI2:
8643 | {
8644 | uint32_t responder_id_list_len;
8645 | uint32_t request_extensions_len;
8646 |
8647 | /* ResponderID responder_id_list<0..2^16-1> */
8648 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &responder_id_list_len,
8649 | hf->hf.hs_ext_cert_status_responder_id_list_len, 0, UINT16_MAX(65535))) {
8650 | return offset_end;
8651 | }
8652 | offset += 2;
8653 | if (responder_id_list_len != 0) {
8654 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.hs_ext_cert_status_undecoded,
8655 | tvb, offset, responder_id_list_len,
8656 | "Responder ID list is not implemented, contact Wireshark"
8657 | " developers if you want this to be supported");
8658 | }
8659 | offset += responder_id_list_len;
8660 |
8661 | /* opaque Extensions<0..2^16-1> */
8662 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &request_extensions_len,
8663 | hf->hf.hs_ext_cert_status_request_extensions_len, 0, UINT16_MAX(65535))) {
8664 | return offset_end;
8665 | }
8666 | offset += 2;
8667 | if (request_extensions_len != 0) {
8668 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.hs_ext_cert_status_undecoded,
8669 | tvb, offset, request_extensions_len,
8670 | "Request Extensions are not implemented, contact"
8671 | " Wireshark developers if you want this to be supported");
8672 | }
8673 | offset += request_extensions_len;
8674 | break;
8675 | }
8676 | }
8677 |
8678 | return offset;
8679 | }
8680 |
8681 | static unsigned
8682 | ssl_dissect_hnd_hello_ext_status_request_v2(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8683 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
8684 | {
8685 | /* https://tools.ietf.org/html/rfc6961#section-2.2
8686 | * struct {
8687 | * CertificateStatusRequestItemV2 certificate_status_req_list<1..2^16-1>;
8688 | * } CertificateStatusRequestListV2;
8689 | */
8690 | uint32_t req_list_length, next_offset;
8691 |
8692 | /* CertificateStatusRequestItemV2 certificate_status_req_list<1..2^16-1> */
8693 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &req_list_length,
8694 | hf->hf.hs_ext_cert_status_request_list_len, 1, UINT16_MAX(65535))) {
8695 | return offset_end;
8696 | }
8697 | offset += 2;
8698 | next_offset = offset + req_list_length;
8699 |
8700 | while (offset < next_offset) {
8701 | offset = ssl_dissect_hnd_hello_ext_status_request(hf, tvb, pinfo, tree, offset, next_offset, true1);
8702 | }
8703 |
8704 | return offset;
8705 | }
8706 |
8707 | static uint32_t
8708 | tls_dissect_ocsp_response(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
8709 | uint32_t offset, uint32_t offset_end)
8710 | {
8711 | uint32_t response_length;
8712 | proto_item *ocsp_resp;
8713 | proto_tree *ocsp_resp_tree;
8714 | asn1_ctx_t asn1_ctx;
8715 |
8716 | /* opaque OCSPResponse<1..2^24-1>; */
8717 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &response_length,
8718 | hf->hf.hs_ocsp_response_len, 1, G_MAXUINT24((1U << 24) - 1))) {
8719 | return offset_end;
8720 | }
8721 | offset += 3;
8722 |
8723 | ocsp_resp = proto_tree_add_item(tree, proto_ocsp, tvb, offset,
8724 | response_length, ENC_BIG_ENDIAN0x00000000);
8725 | proto_item_set_text(ocsp_resp, "OCSP Response");
8726 | ocsp_resp_tree = proto_item_add_subtree(ocsp_resp, hf->ett.ocsp_response);
8727 | if (proto_is_protocol_enabled(find_protocol_by_id(proto_ocsp))) {
8728 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
8729 | dissect_ocsp_OCSPResponse(false0, tvb, offset, &asn1_ctx, ocsp_resp_tree, -1);
8730 | }
8731 | offset += response_length;
8732 |
8733 | return offset;
8734 | }
8735 |
8736 | uint32_t
8737 | tls_dissect_hnd_certificate_status(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8738 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
8739 | {
8740 | /* TLS 1.2 "CertificateStatus" handshake message.
8741 | * TLS 1.3 "status_request" Certificate extension.
8742 | * struct {
8743 | * CertificateStatusType status_type;
8744 | * select (status_type) {
8745 | * case ocsp: OCSPResponse;
8746 | * case ocsp_multi: OCSPResponseList; // status_request_v2
8747 | * } response;
8748 | * } CertificateStatus;
8749 | * opaque OCSPResponse<1..2^24-1>;
8750 | * struct {
8751 | * OCSPResponse ocsp_response_list<1..2^24-1>;
8752 | * } OCSPResponseList; // status_request_v2
8753 | */
8754 | uint32_t status_type, resp_list_length, next_offset;
8755 |
8756 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_ext_cert_status_type,
8757 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000, &status_type);
8758 | offset += 1;
8759 |
8760 | switch (status_type) {
8761 | case SSL_HND_CERT_STATUS_TYPE_OCSP1:
8762 | offset = tls_dissect_ocsp_response(hf, tvb, pinfo, tree, offset, offset_end);
8763 | break;
8764 |
8765 | case SSL_HND_CERT_STATUS_TYPE_OCSP_MULTI2:
8766 | /* OCSPResponse ocsp_response_list<1..2^24-1> */
8767 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &resp_list_length,
8768 | hf->hf.hs_ocsp_response_list_len, 1, G_MAXUINT24((1U << 24) - 1))) {
8769 | return offset_end;
8770 | }
8771 | offset += 3;
8772 | next_offset = offset + resp_list_length;
8773 |
8774 | while (offset < next_offset) {
8775 | offset = tls_dissect_ocsp_response(hf, tvb, pinfo, tree, offset, next_offset);
8776 | }
8777 | break;
8778 | }
8779 |
8780 | return offset;
8781 | }
8782 |
8783 | static unsigned
8784 | ssl_dissect_hnd_hello_ext_supported_groups(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
8785 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
8786 | wmem_strbuf_t *ja3)
8787 | {
8788 | /* RFC 8446 Section 4.2.7
8789 | * enum { ..., (0xFFFF) } NamedGroup;
8790 | * struct {
8791 | * NamedGroup named_group_list<2..2^16-1>
8792 | * } NamedGroupList;
8793 | *
8794 | * NOTE: "NamedCurve" (RFC 4492) is renamed to "NamedGroup" (RFC 7919) and
8795 | * the extension itself from "elliptic_curves" to "supported_groups".
8796 | */
8797 | uint32_t groups_length, next_offset;
8798 | proto_tree *groups_tree;
8799 | proto_item *ti;
8800 | char *ja3_dash = "";
8801 |
8802 | /* NamedGroup named_group_list<2..2^16-1> */
8803 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &groups_length,
8804 | hf->hf.hs_ext_supported_groups_len, 2, UINT16_MAX(65535))) {
8805 | return offset_end;
8806 | }
8807 | offset += 2;
8808 | next_offset = offset + groups_length;
8809 |
8810 | ti = proto_tree_add_none_format(tree,
8811 | hf->hf.hs_ext_supported_groups,
8812 | tvb, offset, groups_length,
8813 | "Supported Groups (%d group%s)",
8814 | groups_length / 2,
8815 | plurality(groups_length/2, "", "s")((groups_length/2) == 1 ? ("") : ("s")));
8816 |
8817 | /* make this a subtree */
8818 | groups_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_groups);
8819 |
8820 | if (ja3) {
8821 | wmem_strbuf_append_c(ja3, ',');
8822 | }
8823 | /* loop over all groups */
8824 | while (offset + 2 <= offset_end) {
8825 | uint32_t ext_supported_group;
8826 |
8827 | proto_tree_add_item_ret_uint(groups_tree, hf->hf.hs_ext_supported_group, tvb, offset, 2,
8828 | ENC_BIG_ENDIAN0x00000000, &ext_supported_group);
8829 | offset += 2;
8830 | if (ja3 && !IS_GREASE_TLS(ext_supported_group)((((ext_supported_group) & 0x0f0f) == 0x0a0a) && ( ((ext_supported_group) & 0xff) == (((ext_supported_group) >>8) & 0xff)))) {
8831 | wmem_strbuf_append_printf(ja3, "%s%i",ja3_dash, ext_supported_group);
8832 | ja3_dash = "-";
8833 | }
8834 | }
8835 | if (!ssl_end_vector(hf, tvb, pinfo, groups_tree, offset, next_offset)) {
8836 | offset = next_offset;
8837 | }
8838 |
8839 | return offset;
8840 | }
8841 |
8842 | static int
8843 | ssl_dissect_hnd_hello_ext_ec_point_formats(ssl_common_dissect_t *hf, tvbuff_t *tvb,
8844 | proto_tree *tree, uint32_t offset, wmem_strbuf_t *ja3)
8845 | {
8846 | uint8_t ecpf_length;
8847 | proto_tree *ecpf_tree;
8848 | proto_item *ti;
8849 |
8850 | ecpf_length = tvb_get_uint8(tvb, offset);
8851 | proto_tree_add_item(tree, hf->hf.hs_ext_ec_point_formats_len,
8852 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
8853 |
8854 | offset += 1;
8855 | ti = proto_tree_add_none_format(tree,
8856 | hf->hf.hs_ext_ec_point_formats,
8857 | tvb, offset, ecpf_length,
8858 | "Elliptic curves point formats (%d)",
8859 | ecpf_length);
8860 |
8861 | /* make this a subtree */
8862 | ecpf_tree = proto_item_add_subtree(ti, hf->ett.hs_ext_curves_point_formats);
8863 |
8864 | if (ja3) {
8865 | wmem_strbuf_append_c(ja3, ',');
8866 | }
8867 |
8868 | /* loop over all point formats */
8869 | while (ecpf_length > 0)
8870 | {
8871 | uint32_t ext_ec_point_format;
8872 |
8873 | proto_tree_add_item_ret_uint(ecpf_tree, hf->hf.hs_ext_ec_point_format, tvb, offset, 1,
8874 | ENC_BIG_ENDIAN0x00000000, &ext_ec_point_format);
8875 | offset++;
8876 | ecpf_length--;
8877 | if (ja3) {
8878 | wmem_strbuf_append_printf(ja3, "%i", ext_ec_point_format);
8879 | if (ecpf_length > 0) {
8880 | wmem_strbuf_append_c(ja3, '-');
8881 | }
8882 | }
8883 | }
8884 |
8885 | return offset;
8886 | }
8887 |
8888 | static int
8889 | ssl_dissect_hnd_hello_ext_srp(ssl_common_dissect_t *hf, tvbuff_t *tvb,
8890 | packet_info *pinfo, proto_tree *tree,
8891 | uint32_t offset, uint32_t next_offset)
8892 | {
8893 | /* https://tools.ietf.org/html/rfc5054#section-2.8.1
8894 | * opaque srp_I<1..2^8-1>;
8895 | */
8896 | uint32_t username_len;
8897 |
8898 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, next_offset, &username_len,
8899 | hf->hf.hs_ext_srp_len, 1, UINT8_MAX(255))) {
8900 | return next_offset;
8901 | }
8902 | offset++;
8903 |
8904 | proto_tree_add_item(tree, hf->hf.hs_ext_srp_username,
8905 | tvb, offset, username_len, ENC_UTF_80x00000002|ENC_NA0x00000000);
8906 | offset += username_len;
8907 |
8908 | return offset;
8909 | }
8910 |
8911 | static uint32_t
8912 | tls_dissect_sct(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
8913 | uint32_t offset, uint32_t offset_end, uint16_t version)
8914 | {
8915 | /* https://tools.ietf.org/html/rfc6962#section-3.2
8916 | * enum { v1(0), (255) } Version;
8917 | * struct {
8918 | * opaque key_id[32];
8919 | * } LogID;
8920 | * opaque CtExtensions<0..2^16-1>;
8921 | * struct {
8922 | * Version sct_version;
8923 | * LogID id;
8924 | * uint64 timestamp;
8925 | * CtExtensions extensions;
8926 | * digitally-signed struct { ... };
8927 | * } SignedCertificateTimestamp;
8928 | */
8929 | uint32_t sct_version;
8930 | uint64_t sct_timestamp_ms;
8931 | nstime_t sct_timestamp;
8932 | uint32_t exts_len;
8933 | const char *log_name;
8934 |
8935 | proto_tree_add_item_ret_uint(tree, hf->hf.sct_sct_version, tvb, offset, 1, ENC_NA0x00000000, &sct_version);
8936 | offset++;
8937 | if (sct_version != 0) {
8938 | // TODO expert info about unknown SCT version?
8939 | return offset;
8940 | }
8941 | proto_tree_add_item(tree, hf->hf.sct_sct_logid, tvb, offset, 32, ENC_BIG_ENDIAN0x00000000);
8942 | log_name = bytesval_to_str_wmem(pinfo->pool, tvb_get_ptr(tvb, offset, 32), 32, ct_logids, "Unknown Log");
8943 | proto_item_append_text(tree, " (%s)", log_name);
8944 | offset += 32;
8945 | sct_timestamp_ms = tvb_get_ntoh64(tvb, offset);
8946 | sct_timestamp.secs = (time_t)(sct_timestamp_ms / 1000);
8947 | sct_timestamp.nsecs = (int)((sct_timestamp_ms % 1000) * 1000000);
8948 | proto_tree_add_time(tree, hf->hf.sct_sct_timestamp, tvb, offset, 8, &sct_timestamp);
8949 | offset += 8;
8950 | /* opaque CtExtensions<0..2^16-1> */
8951 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &exts_len,
8952 | hf->hf.sct_sct_extensions_length, 0, UINT16_MAX(65535))) {
8953 | return offset_end;
8954 | }
8955 | offset += 2;
8956 | if (exts_len > 0) {
8957 | proto_tree_add_item(tree, hf->hf.sct_sct_extensions, tvb, offset, exts_len, ENC_BIG_ENDIAN0x00000000);
8958 | offset += exts_len;
8959 | }
8960 | offset = ssl_dissect_digitally_signed(hf, tvb, pinfo, tree, offset, offset_end, version,
8961 | hf->hf.sct_sct_signature_length,
8962 | hf->hf.sct_sct_signature);
8963 | return offset;
8964 | }
8965 |
8966 | uint32_t
8967 | tls_dissect_sct_list(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
8968 | uint32_t offset, uint32_t offset_end, uint16_t version)
8969 | {
8970 | /* https://tools.ietf.org/html/rfc6962#section-3.3
8971 | * opaque SerializedSCT<1..2^16-1>;
8972 | * struct {
8973 | * SerializedSCT sct_list <1..2^16-1>;
8974 | * } SignedCertificateTimestampList;
8975 | */
8976 | uint32_t list_length, sct_length, next_offset;
8977 | proto_tree *subtree;
8978 |
8979 | /* SerializedSCT sct_list <1..2^16-1> */
8980 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &list_length,
8981 | hf->hf.sct_scts_length, 1, UINT16_MAX(65535))) {
8982 | return offset_end;
8983 | }
8984 | offset += 2;
8985 |
8986 | while (offset < offset_end) {
8987 | subtree = proto_tree_add_subtree(tree, tvb, offset, 2, hf->ett.sct, NULL((void*)0), "Signed Certificate Timestamp");
8988 |
8989 | /* opaque SerializedSCT<1..2^16-1> */
8990 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, offset_end, &sct_length,
8991 | hf->hf.sct_sct_length, 1, UINT16_MAX(65535))) {
8992 | return offset_end;
8993 | }
8994 | offset += 2;
8995 | next_offset = offset + sct_length;
8996 | proto_item_set_len(subtree, 2 + sct_length);
8997 | offset = tls_dissect_sct(hf, tvb, pinfo, subtree, offset, next_offset, version);
8998 | if (!ssl_end_vector(hf, tvb, pinfo, subtree, offset, next_offset)) {
8999 | offset = next_offset;
9000 | }
9001 | }
9002 |
9003 | return offset;
9004 | }
9005 |
9006 | static int
9007 | dissect_ech_hpke_cipher_suite(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo _U___attribute__((unused)),
9008 | proto_tree *tree, uint32_t offset)
9009 | {
9010 | uint32_t kdf_id, aead_id;
9011 | proto_item *cs_ti;
9012 | proto_tree *cs_tree;
9013 |
9014 | cs_ti = proto_tree_add_item(tree, hf->hf.ech_hpke_keyconfig_cipher_suite,
9015 | tvb, offset, 4, ENC_NA0x00000000);
9016 | cs_tree = proto_item_add_subtree(cs_ti, hf->ett.ech_hpke_cipher_suite);
9017 |
9018 | proto_tree_add_item_ret_uint(cs_tree, hf->hf.ech_hpke_keyconfig_cipher_suite_kdf_id,
9019 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &kdf_id);
9020 | offset += 2;
9021 | proto_tree_add_item_ret_uint(cs_tree, hf->hf.ech_hpke_keyconfig_cipher_suite_aead_id,
9022 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &aead_id);
9023 | offset += 2;
9024 |
9025 | proto_item_append_text(cs_ti, ": %s/%s",
9026 | val_to_str_const(kdf_id, kdf_id_type_vals, "Unknown"),
9027 | val_to_str_const(aead_id, aead_id_type_vals, "Unknown"));
9028 | return offset;
9029 | }
9030 |
9031 | static int
9032 | dissect_ech_hpke_key_config(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9033 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
9034 | uint32_t *config_id)
9035 | {
9036 | uint32_t length, cipher_suite_length;
9037 | proto_item *kc_ti, *css_ti;
9038 | proto_tree *kc_tree, *css_tree;
9039 | uint32_t original_offset = offset, next_offset;
9040 |
9041 | kc_ti = proto_tree_add_item(tree, hf->hf.ech_hpke_keyconfig,
9042 | tvb, offset, -1, ENC_NA0x00000000);
9043 | kc_tree = proto_item_add_subtree(kc_ti, hf->ett.ech_hpke_keyconfig);
9044 |
9045 | proto_tree_add_item_ret_uint(kc_tree, hf->hf.ech_hpke_keyconfig_config_id,
9046 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000, config_id);
9047 | offset += 1;
9048 | proto_tree_add_item(kc_tree, hf->hf.ech_hpke_keyconfig_kem_id,
9049 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
9050 | offset += 2;
9051 | proto_tree_add_item_ret_uint(kc_tree, hf->hf.ech_hpke_keyconfig_public_key_length,
9052 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &length);
9053 | offset += 2;
9054 | proto_tree_add_item(kc_tree, hf->hf.ech_hpke_keyconfig_public_key,
9055 | tvb, offset, length, ENC_NA0x00000000);
9056 | offset += length;
9057 |
9058 | /* HpkeSymmetricCipherSuite cipher_suites<4..2^16-4> */
9059 | if (!ssl_add_vector(hf, tvb, pinfo, kc_tree, offset, offset_end, &cipher_suite_length,
9060 | hf->hf.ech_hpke_keyconfig_cipher_suites_length, 4, UINT16_MAX(65535) - 3)) {
9061 | return offset_end;
9062 | }
9063 | offset += 2;
9064 | next_offset = offset + cipher_suite_length;
9065 |
9066 | css_ti = proto_tree_add_none_format(kc_tree,
9067 | hf->hf.ech_hpke_keyconfig_cipher_suites,
9068 | tvb, offset, cipher_suite_length,
9069 | "Cipher Suites (%d suite%s)",
9070 | cipher_suite_length / 4,
9071 | plurality(cipher_suite_length / 4, "", "s")((cipher_suite_length / 4) == 1 ? ("") : ("s")));
9072 | css_tree = proto_item_add_subtree(css_ti, hf->ett.ech_hpke_cipher_suites);
9073 |
9074 |
9075 | while (offset + 4 <= next_offset) {
9076 | offset = dissect_ech_hpke_cipher_suite(hf, tvb, pinfo, css_tree, offset);
9077 | }
9078 |
9079 | if (!ssl_end_vector(hf, tvb, pinfo, css_tree, offset, next_offset)) {
9080 | offset = next_offset;
9081 | }
9082 |
9083 | proto_item_set_len(kc_ti, offset - original_offset);
9084 |
9085 | return offset;
9086 | }
9087 |
9088 | static int
9089 | dissect_ech_echconfig_contents(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9090 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
9091 | const uint8_t **public_name, uint32_t *config_id)
9092 | {
9093 | uint32_t public_name_length, extensions_length, next_offset;
9094 |
9095 | offset = dissect_ech_hpke_key_config(hf, tvb, pinfo, tree, offset, offset_end, config_id);
9096 | proto_tree_add_item(tree, hf->hf.ech_echconfigcontents_maximum_name_length,
9097 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
9098 | offset += 1;
9099 | proto_tree_add_item_ret_uint(tree, hf->hf.ech_echconfigcontents_public_name_length,
9100 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000, &public_name_length);
9101 | offset += 1;
9102 | proto_tree_add_item_ret_string(tree, hf->hf.ech_echconfigcontents_public_name,
9103 | tvb, offset, public_name_length, ENC_ASCII0x00000000, pinfo->pool, public_name);
9104 | offset += public_name_length;
9105 |
9106 | /* Extension extensions<0..2^16-1>; */
9107 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &extensions_length,
9108 | hf->hf.ech_echconfigcontents_extensions_length, 0, UINT16_MAX(65535))) {
9109 | return offset_end;
9110 | }
9111 | offset += 2;
9112 | next_offset = offset + extensions_length;
9113 |
9114 | if (extensions_length > 0) {
9115 | proto_tree_add_item(tree, hf->hf.ech_echconfigcontents_extensions,
9116 | tvb, offset, extensions_length, ENC_NA0x00000000);
9117 | }
9118 | offset += extensions_length;
9119 |
9120 | if (!ssl_end_vector(hf, tvb, pinfo, tree, offset, next_offset)) {
9121 | offset = next_offset;
9122 | }
9123 |
9124 | return offset;
9125 | }
9126 |
9127 | static int
9128 | dissect_ech_echconfig(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9129 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
9130 | {
9131 | uint32_t version, length;
9132 | proto_item *ech_ti;
9133 | proto_tree *ech_tree;
9134 | const uint8_t *public_name = NULL((void*)0);
9135 | uint32_t config_id = 0;
9136 |
9137 | ech_ti = proto_tree_add_item(tree, hf->hf.ech_echconfig, tvb, offset, -1, ENC_NA0x00000000);
9138 | ech_tree = proto_item_add_subtree(ech_ti, hf->ett.ech_echconfig);
9139 |
9140 | proto_tree_add_item_ret_uint(ech_tree, hf->hf.ech_echconfig_version,
9141 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &version);
9142 | offset += 2;
9143 | proto_tree_add_item_ret_uint(ech_tree, hf->hf.ech_echconfig_length,
9144 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &length);
9145 | offset += 2;
9146 |
9147 | proto_item_set_len(ech_ti, 4 + length);
9148 |
9149 | switch(version) {
9150 | case 0xfe0d:
9151 | dissect_ech_echconfig_contents(hf, tvb, pinfo, ech_tree, offset, offset_end, &public_name, &config_id);
9152 | proto_item_append_text(ech_ti, ": id=%d %s", config_id, public_name);
9153 | break;
9154 |
9155 | default:
9156 | expert_add_info_format(pinfo, ech_ti, &hf->ei.ech_echconfig_invalid_version, "Unsupported/unknown ECHConfig version 0x%x", version);
9157 | }
9158 |
9159 | return 4 + length;
9160 | }
9161 |
9162 | uint32_t
9163 | ssl_dissect_ext_ech_echconfiglist(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9164 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
9165 | {
9166 | uint32_t echconfiglist_length, next_offset;
9167 |
9168 | /* ECHConfig ECHConfigList<1..2^16-1>; */
9169 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &echconfiglist_length,
9170 | hf->hf.ech_echconfiglist_length, 1, UINT16_MAX(65535))) {
9171 | return offset_end;
9172 | }
9173 | offset += 2;
9174 | next_offset = offset + echconfiglist_length;
9175 |
9176 | while (offset < next_offset) {
9177 | offset += dissect_ech_echconfig(hf, tvb, pinfo, tree, offset, offset_end);
9178 | }
9179 |
9180 | if (!ssl_end_vector(hf, tvb, pinfo, tree, offset, next_offset)) {
9181 | offset = next_offset;
9182 | }
9183 |
9184 | return offset;
9185 | }
9186 |
9187 | static uint32_t
9188 | ssl_dissect_hnd_ech_outer_ext(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
9189 | uint32_t offset, uint32_t offset_end)
9190 | {
9191 | uint32_t ext_length, next_offset;
9192 | proto_tree *ext_tree;
9193 | proto_item *ti;
9194 |
9195 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &ext_length,
9196 | hf->hf.hs_ext_ech_outer_ext_len, 2, UINT8_MAX(255))) {
9197 | return offset_end;
9198 | }
9199 | offset += 1;
9200 | next_offset = offset + ext_length;
9201 |
9202 | ti = proto_tree_add_none_format(tree,
9203 | hf->hf.hs_ext_ech_outer_ext,
9204 | tvb, offset, ext_length,
9205 | "Outer Extensions (%d extension%s)",
9206 | ext_length / 2,
9207 | plurality(ext_length/2, "", "s")((ext_length/2) == 1 ? ("") : ("s")));
9208 |
9209 | ext_tree = proto_item_add_subtree(ti, hf->ett.hs_ext);
9210 |
9211 | while (offset + 2 <= offset_end) {
9212 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_type, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
9213 | offset += 2;
9214 | }
9215 |
9216 | if (!ssl_end_vector(hf, tvb, pinfo, ext_tree, offset, next_offset)) {
9217 | offset = next_offset;
9218 | }
9219 |
9220 | return offset;
9221 | }
9222 |
9223 | static uint32_t
9224 | // NOLINTNEXTLINE(misc-no-recursion)
9225 | ssl_dissect_hnd_hello_ext_ech(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9226 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
9227 | uint8_t hnd_type, SslSession *session, SslDecryptSession *ssl, ssl_master_key_map_t *mk_map)
9228 | {
9229 | uint32_t ch_type, length;
9230 | proto_item *ti, *payload_ti;
9231 | proto_tree *retry_tree, *payload_tree;
9232 | uint32_t hello_length = tvb_reported_length(tvb);
9233 |
9234 | switch (hnd_type) {
9235 | case SSL_HND_CLIENT_HELLO:
9236 | /*
9237 | * enum { outer(0), inner(1) } ECHClientHelloType;
9238 | *
9239 | * struct {
9240 | * ECHClientHelloType type;
9241 | * select (ECHClientHello.type) {
9242 | * case outer:
9243 | * HpkeSymmetricCipherSuite cipher_suite;
9244 | * uint8 config_id;
9245 | * opaque enc<0..2^16-1>;
9246 | * opaque payload<1..2^16-1>;
9247 | * case inner:
9248 | * Empty;
9249 | * };
9250 | * } ECHClientHello;
9251 | */
9252 |
9253 | proto_tree_add_item_ret_uint(tree, hf->hf.ech_clienthello_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000, &ch_type);
9254 | offset += 1;
9255 | switch (ch_type) {
9256 | case 0: /* outer */
9257 | if (ssl && session->first_ch_ech_frame == 0) {
9258 | session->first_ch_ech_frame = pinfo->num;
9259 | }
9260 | offset = dissect_ech_hpke_cipher_suite(hf, tvb, pinfo, tree, offset);
9261 | uint16_t kdf_id = tvb_get_ntohs(tvb, offset - 4);
9262 | uint16_t aead_id = tvb_get_ntohs(tvb, offset - 2);
9263 |
9264 | proto_tree_add_item(tree, hf->hf.ech_config_id, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
9265 | uint8_t config_id = tvb_get_uint8(tvb, offset);
9266 | offset += 1;
9267 | proto_tree_add_item_ret_uint(tree, hf->hf.ech_enc_length, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &length);
9268 | offset += 2;
9269 | proto_tree_add_item(tree, hf->hf.ech_enc, tvb, offset, length, ENC_NA0x00000000);
9270 | offset += length;
9271 | proto_tree_add_item_ret_uint(tree, hf->hf.ech_payload_length, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &length);
9272 | offset += 2;
9273 | payload_ti = proto_tree_add_item(tree, hf->hf.ech_payload, tvb, offset, length, ENC_NA0x00000000);
9274 | offset += length;
9275 |
9276 | if (!mk_map) {
9277 | break;
9278 | }
9279 | if (session->client_random.data_len == 0) {
9280 | ssl_debug_printf("%s missing Client Random\n", G_STRFUNC((const char*) (__func__)));
9281 | break;
9282 | }
9283 | StringInfo *ech_secret = (StringInfo *)g_hash_table_lookup(mk_map->ech_secret, &session->client_random);
9284 | StringInfo *ech_config = (StringInfo *)g_hash_table_lookup(mk_map->ech_config, &session->client_random);
9285 | if (!ech_secret || !ech_config) {
9286 | ssl_debug_printf("%s Cannot find ECH_SECRET or ECH_CONFIG, Encrypted Client Hello decryption impossible\n",
9287 | G_STRFUNC((const char*) (__func__)));
9288 | break;
9289 | }
9290 |
9291 | if (hpke_hkdf_len(kdf_id) == 0) {
9292 | ssl_debug_printf("Unsupported KDF\n");
9293 | break;
9294 | }
9295 |
9296 | if (hpke_aead_key_len(aead_id) == 0) {
9297 | ssl_debug_printf("Unsupported AEAD\n");
9298 | break;
9299 | }
9300 |
9301 | size_t aead_nonce_len = hpke_aead_nonce_len(aead_id);
9302 |
9303 | unsigned aead_auth_tag_len = hpke_aead_auth_tag_len(aead_id);
9304 | if (length < aead_auth_tag_len) {
9305 | ssl_debug_printf("Encrypted payload length %u < Cipher suite authentication tag length %u.\n", length, aead_auth_tag_len);
9306 | break;
9307 | }
9308 | unsigned decrypted_len = length - aead_auth_tag_len;
9309 |
9310 | uint16_t version = pntohu16(ech_config->data);
9311 | if (version != SSL_HND_HELLO_EXT_ENCRYPTED_CLIENT_HELLO65037) {
9312 | ssl_debug_printf("Unexpected version in ECH Config\n");
9313 | break;
9314 | }
9315 | uint32_t ech_config_offset = 2;
9316 | if (pntohu16(&ech_config->data[ech_config_offset]) != ech_config->data_len - 4) {
9317 | ssl_debug_printf("Malformed ECH Config, invalid length\n");
9318 | break;
9319 | }
9320 | ech_config_offset += 2;
9321 | if (*(ech_config->data + ech_config_offset) != config_id) {
9322 | ssl_debug_printf("ECH Config version mismatch\n");
9323 | break;
9324 | }
9325 | ech_config_offset += 1;
9326 | uint16_t kem_id = pntohu16(&ech_config->data[ech_config_offset]);
9327 | uint8_t suite_id[HPKE_SUIT_ID_LEN10];
9328 | hpke_suite_id(kem_id, kdf_id, aead_id, suite_id);
9329 | GByteArray *info = g_byte_array_new();
9330 | g_byte_array_append(info, (const uint8_t*)"tls ech", 8);
9331 | g_byte_array_append(info, ech_config->data, ech_config->data_len);
9332 | uint8_t key[AEAD_MAX_KEY_LENGTH32];
9333 | uint8_t base_nonce[HPKE_AEAD_NONCE_LENGTH12];
9334 | if (hpke_key_schedule(kdf_id, aead_id, ech_secret->data, ech_secret->data_len, suite_id, info->data, info->len, HPKE_MODE_BASE0,
9335 | key, base_nonce)) {
9336 | g_byte_array_free(info, TRUE(!(0)));
9337 | break;
9338 | }
9339 | g_byte_array_free(info, TRUE(!(0)));
9340 | gcry_cipher_hd_t cipher;
9341 | if (hpke_setup_aead(&cipher, aead_id, key) ||
9342 | hpke_set_nonce(cipher, !session->hrr_ech_declined && pinfo->num > session->first_ch_ech_frame, base_nonce, aead_nonce_len)) {
9343 | gcry_cipher_close(cipher);
9344 | break;
9345 | }
9346 | const uint8_t *payload = tvb_get_ptr(tvb, offset - length, length);
9347 | uint8_t *ech_aad = (uint8_t *)wmem_alloc(NULL((void*)0), hello_length);
9348 | tvb_memcpy(tvb, ech_aad, 0, hello_length);
9349 | memset(ech_aad + offset - length, 0, length);
9350 | if (gcry_cipher_authenticate(cipher, ech_aad, hello_length)) {
9351 | gcry_cipher_close(cipher);
9352 | wmem_free(NULL((void*)0), ech_aad);
9353 | break;
9354 | }
9355 | wmem_free(NULL((void*)0), ech_aad);
9356 | uint8_t *ech_decrypted_data = (uint8_t *)wmem_alloc(pinfo->pool, decrypted_len);
9357 | if (gcry_cipher_decrypt(cipher, ech_decrypted_data, decrypted_len, payload, decrypted_len)) {
9358 | gcry_cipher_close(cipher);
9359 | break;
9360 | }
9361 | unsigned char *ech_auth_tag_calc = wmem_alloc0(pinfo->pool, aead_auth_tag_len);
9362 | if (gcry_cipher_gettag(cipher, ech_auth_tag_calc, aead_auth_tag_len)) {
9363 | gcry_cipher_close(cipher);
9364 | break;
9365 | }
9366 | if (ssl && !session->hrr_ech_declined && session->first_ch_ech_frame == pinfo->num)
9367 | memcpy(session->first_ech_auth_tag, ech_auth_tag_calc, aead_auth_tag_len);
9368 | gcry_cipher_close(cipher);
9369 | if (memcmp(pinfo->num > session->first_ch_ech_frame ? ech_auth_tag_calc : session->first_ech_auth_tag,
9370 | payload + decrypted_len, aead_auth_tag_len)) {
9371 | ssl_debug_printf("%s ECH auth tag mismatch\n", G_STRFUNC((const char*) (__func__)));
9372 | } else {
9373 | payload_tree = proto_item_add_subtree(payload_ti, hf->ett.ech_decrypt);
9374 | tvbuff_t *ech_tvb = tvb_new_child_real_data(tvb, ech_decrypted_data, decrypted_len, decrypted_len);
9375 | add_new_data_source(pinfo, ech_tvb, "Client Hello Inner");
9376 | if (ssl) {
9377 | /* Note the Outer Client Random for Inject TLS Secrets */
9378 | tls_save_crandom(ssl, mk_map);
9379 |
9380 | tvb_memcpy(ech_tvb, ssl->client_random.data, 2, 32);
9381 | uint32_t len_offset = ssl->ech_transcript.data_len;
9382 | if (ssl->ech_transcript.data_len > 0)
9383 | ssl->ech_transcript.data = (unsigned char*)wmem_realloc(wmem_file_scope(), ssl->ech_transcript.data,
9384 | ssl->ech_transcript.data_len + hello_length + 4);
9385 | else
9386 | ssl->ech_transcript.data = (unsigned char*)wmem_alloc(wmem_file_scope(), hello_length + 4);
9387 | ssl->ech_transcript.data[ssl->ech_transcript.data_len] = SSL_HND_CLIENT_HELLO;
9388 | ssl->ech_transcript.data[ssl->ech_transcript.data_len + 1] = 0;
9389 | /* Copy ClientHelloInner up to the legacy_session_id field. */
9390 | tvb_memcpy(ech_tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len + 4, 0, 34);
9391 | ssl->ech_transcript.data_len += 38;
9392 | /* Now copy the legacy_session_id field from ClientHelloOuter. */
9393 | ssl->ech_transcript.data[ssl->ech_transcript.data_len] = ssl->session_id.data_len;
9394 | ssl->ech_transcript.data_len++;
9395 | memcpy(&ssl->ech_transcript.data[ssl->ech_transcript.data_len], ssl->session_id.data, ssl->session_id.data_len);
9396 | ssl->ech_transcript.data_len += ssl->session_id.data_len;
9397 | /* Skip past the legacy_session_id field in ClientHelloInner
9398 | * (which should be the empty string, i.e. just a 0 size.) */
9399 | uint32_t ech_offset = 35 + tvb_get_uint8(ech_tvb, 34);
9400 | /* Copy the Cipher Suites from ClientHelloInner. */
9401 | tvb_memcpy(ech_tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len, ech_offset,
9402 | 2 + tvb_get_ntohs(ech_tvb, ech_offset));
9403 | ssl->ech_transcript.data_len += 2 + tvb_get_ntohs(ech_tvb, ech_offset);
9404 | ech_offset += 2 + tvb_get_ntohs(ech_tvb, ech_offset);
9405 | /* Copy the Compression Methods */
9406 | tvb_memcpy(ech_tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len, ech_offset,
9407 | 1 + tvb_get_uint8(ech_tvb, ech_offset));
9408 | ssl->ech_transcript.data_len += 1 + tvb_get_uint8(ech_tvb, ech_offset);
9409 | ech_offset += 1 + tvb_get_uint8(ech_tvb, ech_offset);
9410 | /* Now replace extensions in ech_outer_extensions with the
9411 | * data from ClientHelloOuter. */
9412 | uint32_t ech_extensions_len_offset = ssl->ech_transcript.data_len;
9413 | ssl->ech_transcript.data_len += 2;
9414 | uint32_t extensions_end = ech_offset + tvb_get_ntohs(ech_tvb, ech_offset) + 2;
9415 | ech_offset += 2;
9416 | bool_Bool ech_outer_extensions_found = false0;
9417 | while (extensions_end - ech_offset >= 4) {
9418 | uint16_t ext_type = tvb_get_ntohs(ech_tvb, ech_offset);
9419 | ech_offset += 2;
9420 | uint16_t ext_len = tvb_get_ntohs(ech_tvb, ech_offset);
9421 | ech_offset += 2;
9422 | if (ext_type != SSL_HND_HELLO_EXT_ECH_OUTER_EXTENSIONS64768) {
9423 | /* Copy this extension directly */
9424 | tvb_memcpy(ech_tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len,
9425 | ech_offset - 4, 4 + ext_len);
9426 | ssl->ech_transcript.data_len += 4 + ext_len;
9427 | ech_offset += ext_len;
9428 | } else if (ext_len > 0) {
9429 | if (ech_outer_extensions_found) {
9430 | ssl_debug_printf("Illegal parameter; only a single \"ech_outer_extensions\" extension is allowed\n");
9431 | /* This could lead to a buffer overflow by
9432 | * making the post-copying ClientHelloInner
9433 | * longer than ClientHelloOuter and is
9434 | * illegal, so skip this and don't copy. */
9435 | ech_offset += ext_len;
9436 | continue;
9437 | }
9438 | ech_outer_extensions_found = true1;
9439 | unsigned num_ech_outer_extensions = tvb_get_uint8(ech_tvb, ech_offset);
9440 | ech_offset += 1;
9441 | uint32_t ech_outer_extensions_end = ech_offset + num_ech_outer_extensions;
9442 | /* In ClientHelloOuter, skip past the legacy_session_id */
9443 | uint32_t outer_offset = 35 + tvb_get_uint8(tvb, 34);
9444 | /* Skip past Cipher Suites */
9445 | outer_offset += tvb_get_ntohs(tvb, outer_offset) + 2;
9446 | /* Skip past Compression Methods */
9447 | outer_offset += tvb_get_uint8(tvb, outer_offset) + 3;
9448 | /* Now at the start of ClientHelloOuter's extensions */
9449 | while (ech_outer_extensions_end - ech_offset >= 2) {
9450 | ext_type = tvb_get_ntohs(ech_tvb, ech_offset);
9451 | if (ext_type == SSL_HND_HELLO_EXT_ENCRYPTED_CLIENT_HELLO65037) {
9452 | ssl_debug_printf("Illegal parameter; encrypted_client_hello cannot appear within ech_outer_extensions\n");
9453 | /* This could lead to a buffer overflow by
9454 | * making the post-copying ClientHelloInner
9455 | * longer than ClientHelloOuter and is
9456 | * illegal, so don't copy. */
9457 | break;
9458 | }
9459 | bool_Bool found = false0;
9460 | while (tvb_reported_length_remaining(tvb, outer_offset) >= 4) {
9461 | uint16_t outer_ext_type = tvb_get_ntohs(tvb, outer_offset);
9462 | uint16_t outer_ext_len = tvb_get_ntohs(tvb, outer_offset + 2);
9463 | if (ext_type == outer_ext_type) {
9464 | tvb_memcpy(tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len, outer_offset,
9465 | 4 + outer_ext_len);
9466 | ssl->ech_transcript.data_len += 4 + outer_ext_len;
9467 | outer_offset += 4 + outer_ext_len;
9468 | found = true1;
9469 | break;
9470 | } else {
9471 | outer_offset += 4 + outer_ext_len;
9472 | }
9473 | }
9474 | if (!found) {
9475 | ssl_debug_printf("Extension %s was not found in ClientHelloOuter (possibly out of order or referenced more than once)\n", val_to_str(pinfo->pool, ext_type, tls_hello_extension_types, "unknown (0x%02x)"));
9476 | }
9477 | ech_offset += 2;
9478 | }
9479 | }
9480 | }
9481 | uint16_t ech_extensions_len = ssl->ech_transcript.data_len - ech_extensions_len_offset - 2;
9482 | phtonu16(&ssl->ech_transcript.data[ech_extensions_len_offset], ech_extensions_len);
9483 | phtonu16(&ssl->ech_transcript.data[len_offset + 2], ssl->ech_transcript.data_len - len_offset - 4);
9484 | }
9485 | uint32_t ech_padding_begin = (uint32_t)ssl_dissect_hnd_cli_hello(hf, ech_tvb, pinfo, payload_tree, 0, decrypted_len, session,
9486 | ssl, NULL((void*)0), mk_map);
9487 | if (ech_padding_begin < decrypted_len) {
9488 | proto_tree_add_item(payload_tree, hf->hf.ech_padding_data, ech_tvb, ech_padding_begin, decrypted_len - ech_padding_begin,
9489 | ENC_NA0x00000000);
9490 | }
9491 | }
9492 |
9493 | break;
9494 | case 1: /* inner */
9495 | break;
9496 | }
9497 | break;
9498 |
9499 | case SSL_HND_ENCRYPTED_EXTENSIONS:
9500 | /*
9501 | * struct {
9502 | * ECHConfigList retry_configs;
9503 | * } ECHEncryptedExtensions;
9504 | */
9505 |
9506 | ti = proto_tree_add_item(tree, hf->hf.ech_retry_configs, tvb, offset, offset_end - offset, ENC_NA0x00000000);
9507 | retry_tree = proto_item_add_subtree(ti, hf->ett.ech_retry_configs);
9508 | offset = ssl_dissect_ext_ech_echconfiglist(hf, tvb, pinfo, retry_tree, offset, offset_end);
9509 | break;
9510 |
9511 | case SSL_HND_HELLO_RETRY_REQUEST:
9512 | /*
9513 | * struct {
9514 | * opaque confirmation[8];
9515 | * } ECHHelloRetryRequest;
9516 | */
9517 |
9518 | proto_tree_add_item(tree, hf->hf.ech_confirmation, tvb, offset, 8, ENC_NA0x00000000);
9519 | if (session->ech) {
9520 | ti = proto_tree_add_bytes_with_length(tree, hf->hf.hs_ech_confirm_compute, tvb, offset, 0, session->hrr_ech_confirmation, 8);
9521 | proto_item_set_generated(ti);
9522 | if (memcmp(session->hrr_ech_confirmation, tvb_get_ptr(tvb, offset, 8), 8)) {
9523 | expert_add_info(pinfo, ti, &hf->ei.ech_rejected);
9524 | } else {
9525 | expert_add_info(pinfo, ti, &hf->ei.ech_accepted);
9526 | }
9527 | }
9528 | offset += 8;
9529 | break;
9530 | }
9531 |
9532 | return offset;
9533 | }
9534 |
9535 | static uint32_t
9536 | ssl_dissect_hnd_hello_ext_esni(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9537 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
9538 | uint8_t hnd_type, SslDecryptSession *ssl _U___attribute__((unused)))
9539 | {
9540 | uint32_t record_digest_length, encrypted_sni_length;
9541 |
9542 | switch (hnd_type) {
9543 | case SSL_HND_CLIENT_HELLO:
9544 | /*
9545 | * struct {
9546 | * CipherSuite suite;
9547 | * KeyShareEntry key_share;
9548 | * opaque record_digest<0..2^16-1>;
9549 | * opaque encrypted_sni<0..2^16-1>;
9550 | * } ClientEncryptedSNI;
9551 | */
9552 | proto_tree_add_item(tree, hf->hf.esni_suite, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
9553 | offset += 2;
9554 | offset = ssl_dissect_hnd_hello_ext_key_share_entry(hf, tvb, pinfo, tree, offset, offset_end, NULL((void*)0));
9555 |
9556 | /* opaque record_digest<0..2^16-1> */
9557 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &record_digest_length,
9558 | hf->hf.esni_record_digest_length, 0, UINT16_MAX(65535))) {
9559 | return offset_end;
9560 | }
9561 | offset += 2;
9562 | if (record_digest_length > 0) {
9563 | proto_tree_add_item(tree, hf->hf.esni_record_digest, tvb, offset, record_digest_length, ENC_NA0x00000000);
9564 | offset += record_digest_length;
9565 | }
9566 |
9567 | /* opaque encrypted_sni<0..2^16-1> */
9568 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &encrypted_sni_length,
9569 | hf->hf.esni_encrypted_sni_length, 0, UINT16_MAX(65535))) {
9570 | return offset_end;
9571 | }
9572 | offset += 2;
9573 | if (encrypted_sni_length > 0) {
9574 | proto_tree_add_item(tree, hf->hf.esni_encrypted_sni, tvb, offset, encrypted_sni_length, ENC_NA0x00000000);
9575 | offset += encrypted_sni_length;
9576 | }
9577 | break;
9578 |
9579 | case SSL_HND_ENCRYPTED_EXTENSIONS:
9580 | proto_tree_add_item(tree, hf->hf.esni_nonce, tvb, offset, 16, ENC_NA0x00000000);
9581 | offset += 16;
9582 | break;
9583 | }
9584 |
9585 | return offset;
9586 | }
9587 | /** TLS Extensions (in Client Hello and Server Hello). }}} */
9588 |
9589 | /* Connection ID dissection. {{{ */
9590 | static uint32_t
9591 | ssl_dissect_ext_connection_id(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9592 | proto_tree *tree, uint32_t offset, SslDecryptSession *ssl,
9593 | uint8_t cidl, uint8_t **session_cid, uint8_t *session_cidl)
9594 | {
9595 | /* keep track of the decrypt session only for the first pass */
9596 | if (cidl > 0 && !PINFO_FD_VISITED(pinfo)((pinfo)->fd->visited)) {
9597 | tvb_ensure_bytes_exist(tvb, offset + 1, cidl);
9598 | *session_cidl = cidl;
9599 | *session_cid = (uint8_t*)wmem_alloc0(wmem_file_scope(), cidl);
9600 | tvb_memcpy(tvb, *session_cid, offset + 1, cidl);
9601 | if (ssl) {
9602 | ssl_add_session_by_cid(ssl);
9603 | }
9604 | }
9605 |
9606 | proto_tree_add_item(tree, hf->hf.hs_ext_connection_id_length,
9607 | tvb, offset, 1, ENC_NA0x00000000);
9608 | offset++;
9609 |
9610 | if (cidl > 0) {
9611 | proto_tree_add_item(tree, hf->hf.hs_ext_connection_id,
9612 | tvb, offset, cidl, ENC_NA0x00000000);
9613 | offset += cidl;
9614 | }
9615 |
9616 | return offset;
9617 | }
9618 |
9619 | static uint32_t
9620 | ssl_dissect_hnd_hello_ext_connection_id(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
9621 | proto_tree *tree, uint32_t offset, uint8_t hnd_type,
9622 | SslSession *session, SslDecryptSession *ssl)
9623 | {
9624 | uint8_t cidl = tvb_get_uint8(tvb, offset);
9625 |
9626 | switch (hnd_type) {
9627 | case SSL_HND_CLIENT_HELLO:
9628 | session->client_cid_len_present = true1;
9629 | return ssl_dissect_ext_connection_id(hf, tvb, pinfo, tree, offset, ssl,
9630 | cidl, &session->client_cid, &session->client_cid_len);
9631 | case SSL_HND_SERVER_HELLO:
9632 | session->server_cid_len_present = true1;
9633 | return ssl_dissect_ext_connection_id(hf, tvb, pinfo, tree, offset, ssl,
9634 | cidl, &session->server_cid, &session->server_cid_len);
9635 | default:
9636 | return offset;
9637 | }
9638 | } /* }}} */
9639 |
9640 | /* Trusted CA dissection. {{{ */
9641 | static uint32_t
9642 | ssl_dissect_hnd_hello_ext_trusted_ca_keys(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
9643 | uint32_t offset, uint32_t offset_end)
9644 | {
9645 | proto_item *ti;
9646 | proto_tree *subtree;
9647 | uint32_t keys_length, next_offset;
9648 |
9649 | /*
9650 | * struct {
9651 | * TrustedAuthority trusted_authorities_list<0..2^16-1>;
9652 | * } TrustedAuthorities;
9653 | *
9654 | * struct {
9655 | * IdentifierType identifier_type;
9656 | * select (identifier_type) {
9657 | * case pre_agreed: struct {};
9658 | * case key_sha1_hash: SHA1Hash;
9659 | * case x509_name: DistinguishedName;
9660 | * case cert_sha1_hash: SHA1Hash;
9661 | * } identifier;
9662 | * } TrustedAuthority;
9663 | *
9664 | * enum {
9665 | * pre_agreed(0), key_sha1_hash(1), x509_name(2),
9666 | * cert_sha1_hash(3), (255)
9667 | * } IdentifierType;
9668 | *
9669 | * opaque DistinguishedName<1..2^16-1>;
9670 | *
9671 | */
9672 |
9673 |
9674 | /* TrustedAuthority trusted_authorities_list<0..2^16-1> */
9675 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &keys_length, hf->hf.hs_ext_trusted_ca_keys_len,
9676 | 0, UINT16_MAX(65535)))
9677 | {
9678 | return offset_end;
9679 | }
9680 | offset += 2;
9681 | next_offset = offset + keys_length;
9682 |
9683 | if (keys_length > 0)
9684 | {
9685 | ti = proto_tree_add_none_format(tree, hf->hf.hs_ext_trusted_ca_keys_list, tvb, offset, keys_length,
9686 | "Trusted CA keys (%d byte%s)", keys_length, plurality(keys_length, "", "s")((keys_length) == 1 ? ("") : ("s")));
9687 | subtree = proto_item_add_subtree(ti, hf->ett.hs_ext_trusted_ca_keys);
9688 |
9689 | while (offset < next_offset)
9690 | {
9691 | uint32_t identifier_type;
9692 | proto_tree *trusted_key_tree;
9693 | proto_item *trusted_key_item;
9694 | asn1_ctx_t asn1_ctx;
9695 | uint32_t key_len = 0;
9696 |
9697 | identifier_type = tvb_get_uint8(tvb, offset);
9698 |
9699 | // Use 0 as length for now as we'll only know the size when we decode the identifier
9700 | trusted_key_item = proto_tree_add_none_format(subtree, hf->hf.hs_ext_trusted_ca_key, tvb,
9701 | offset, 0, "Trusted CA Key");
9702 | trusted_key_tree = proto_item_add_subtree(trusted_key_item, hf->ett.hs_ext_trusted_ca_key);
9703 |
9704 | proto_tree_add_uint(trusted_key_tree, hf->hf.hs_ext_trusted_ca_key_type, tvb,
9705 | offset, 1, identifier_type);
9706 | offset++;
9707 |
9708 | /*
9709 | * enum {
9710 | * pre_agreed(0), key_sha1_hash(1), x509_name(2),
9711 | * cert_sha1_hash(3), (255)
9712 | * } IdentifierType;
9713 | */
9714 | switch (identifier_type)
9715 | {
9716 | case 0:
9717 | key_len = 0;
9718 | break;
9719 | case 2:
9720 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
9721 |
9722 | uint32_t name_length;
9723 | /* opaque DistinguishedName<1..2^16-1> */
9724 | if (!ssl_add_vector(hf, tvb, pinfo, trusted_key_tree, offset, next_offset, &name_length,
9725 | hf->hf.hs_ext_trusted_ca_key_dname_len, 1, UINT16_MAX(65535))) {
9726 | return next_offset;
9727 | }
9728 | offset += 2;
9729 |
9730 | dissect_x509if_DistinguishedName(false0, tvb, offset, &asn1_ctx,
9731 | trusted_key_tree, hf->hf.hs_ext_trusted_ca_key_dname);
9732 | offset += name_length;
9733 | break;
9734 | case 1:
9735 | case 3:
9736 | key_len = 20;
9737 | /* opaque SHA1Hash[20]; */
9738 | proto_tree_add_item(trusted_key_tree, hf->hf.hs_ext_trusted_ca_key_hash, tvb,
9739 | offset, 20, ENC_NA0x00000000);
9740 | break;
9741 |
9742 | default:
9743 | key_len = 0;
9744 | /*TODO display expert info about unknown ? */
9745 | break;
9746 | }
9747 | proto_item_set_len(trusted_key_item, 1 + key_len);
9748 | offset += key_len;
9749 | }
9750 | }
9751 |
9752 | if (!ssl_end_vector(hf, tvb, pinfo, tree, offset, next_offset))
9753 | {
9754 | offset = next_offset;
9755 | }
9756 |
9757 | return offset;
9758 | } /* }}} */
9759 |
9760 |
9761 | /* Whether the Content and Handshake Types are valid; handle Protocol Version. {{{ */
9762 | bool_Bool
9763 | ssl_is_valid_content_type(uint8_t type)
9764 | {
9765 | switch ((ContentType) type) {
9766 | case SSL_ID_CHG_CIPHER_SPEC:
9767 | case SSL_ID_ALERT:
9768 | case SSL_ID_HANDSHAKE:
9769 | case SSL_ID_APP_DATA:
9770 | case SSL_ID_HEARTBEAT:
9771 | case SSL_ID_TLS12_CID:
9772 | case SSL_ID_DTLS13_ACK:
9773 | return true1;
9774 | }
9775 | return false0;
9776 | }
9777 |
9778 | bool_Bool
9779 | ssl_is_valid_handshake_type(uint8_t hs_type, bool_Bool is_dtls)
9780 | {
9781 | switch ((HandshakeType) hs_type) {
9782 | case SSL_HND_HELLO_VERIFY_REQUEST:
9783 | /* hello_verify_request is DTLS-only */
9784 | return is_dtls;
9785 |
9786 | case SSL_HND_HELLO_REQUEST:
9787 | case SSL_HND_CLIENT_HELLO:
9788 | case SSL_HND_SERVER_HELLO:
9789 | case SSL_HND_NEWSESSION_TICKET:
9790 | case SSL_HND_END_OF_EARLY_DATA:
9791 | case SSL_HND_HELLO_RETRY_REQUEST:
9792 | case SSL_HND_ENCRYPTED_EXTENSIONS:
9793 | case SSL_HND_CERTIFICATE:
9794 | case SSL_HND_SERVER_KEY_EXCHG:
9795 | case SSL_HND_CERT_REQUEST:
9796 | case SSL_HND_SVR_HELLO_DONE:
9797 | case SSL_HND_CERT_VERIFY:
9798 | case SSL_HND_CLIENT_KEY_EXCHG:
9799 | case SSL_HND_FINISHED:
9800 | case SSL_HND_CERT_URL:
9801 | case SSL_HND_CERT_STATUS:
9802 | case SSL_HND_SUPPLEMENTAL_DATA:
9803 | case SSL_HND_KEY_UPDATE:
9804 | case SSL_HND_COMPRESSED_CERTIFICATE:
9805 | case SSL_HND_ENCRYPTED_EXTS:
9806 | return true1;
9807 | case SSL_HND_MESSAGE_HASH:
9808 | return false0;
9809 | }
9810 | return false0;
9811 | }
9812 |
9813 | static bool_Bool
9814 | ssl_is_authoritative_version_message(uint8_t content_type, uint8_t handshake_type,
9815 | bool_Bool is_dtls)
9816 | {
9817 | /* Consider all valid Handshake messages (except for Client Hello) and
9818 | * all other valid record types (other than Handshake) */
9819 | return (content_type == SSL_ID_HANDSHAKE &&
9820 | ssl_is_valid_handshake_type(handshake_type, is_dtls) &&
9821 | handshake_type != SSL_HND_CLIENT_HELLO) ||
9822 | (content_type != SSL_ID_HANDSHAKE &&
9823 | ssl_is_valid_content_type(content_type));
9824 | }
9825 |
9826 | /**
9827 | * Scan a Server Hello handshake message for the negotiated version. For TLS 1.3
9828 | * draft 22 and newer, it also checks whether it is a HelloRetryRequest.
9829 | * Returns true if the supported_versions extension was found, false if not.
9830 | */
9831 | bool_Bool
9832 | tls_scan_server_hello(tvbuff_t *tvb, uint32_t offset, uint32_t offset_end,
9833 | uint16_t *server_version, bool_Bool *is_hrr)
9834 | {
9835 | /* SHA256("HelloRetryRequest") */
9836 | static const uint8_t tls13_hrr_random_magic[] = {
9837 | 0xcf, 0x21, 0xad, 0x74, 0xe5, 0x9a, 0x61, 0x11, 0xbe, 0x1d, 0x8c, 0x02, 0x1e, 0x65, 0xb8, 0x91,
9838 | 0xc2, 0xa2, 0x11, 0x16, 0x7a, 0xbb, 0x8c, 0x5e, 0x07, 0x9e, 0x09, 0xe2, 0xc8, 0xa8, 0x33, 0x9c
9839 | };
9840 | uint8_t session_id_length;
9841 |
9842 | *server_version = tvb_get_ntohs(tvb, offset);
9843 |
9844 | /*
9845 | * Try to look for supported_versions extension. Minimum length:
9846 | * 2 + 32 + 1 = 35 (version, random, session id length)
9847 | * 2 + 1 + 2 = 5 (cipher suite, compression method, extensions length)
9848 | * 2 + 2 + 2 = 6 (ext type, ext len, version)
9849 | *
9850 | * We only check for the [legacy_]version field to be [D]TLS 1.2; if it's 1.3,
9851 | * there's a separate expert info warning for that.
9852 | */
9853 | if ((*server_version == TLSV1DOT2_VERSION0x303 || *server_version == DTLSV1DOT2_VERSION0xfefd) && offset_end - offset >= 46) {
9854 | offset += 2;
9855 | if (is_hrr) {
9856 | *is_hrr = tvb_memeql(tvb, offset, tls13_hrr_random_magic, sizeof(tls13_hrr_random_magic)) == 0;
9857 | }
9858 | offset += 32;
9859 | session_id_length = tvb_get_uint8(tvb, offset);
9860 | offset++;
9861 | if (offset_end - offset < session_id_length + 5u) {
9862 | return false0;
9863 | }
9864 | offset += session_id_length + 5;
9865 |
9866 | while (offset_end - offset >= 6) {
9867 | uint16_t ext_type = tvb_get_ntohs(tvb, offset);
9868 | uint16_t ext_len = tvb_get_ntohs(tvb, offset + 2);
9869 | if (offset_end - offset < 4u + ext_len) {
9870 | break; /* not enough data for type, length and data */
9871 | }
9872 | if (ext_type == SSL_HND_HELLO_EXT_SUPPORTED_VERSIONS43) {
9873 | if (ext_len == 2) {
9874 | *server_version = tvb_get_ntohs(tvb, offset + 4);
9875 | }
9876 | return true1;
9877 | }
9878 | offset += 4 + ext_len;
9879 | }
9880 | } else {
9881 | if (is_hrr) {
9882 | *is_hrr = false0;
9883 | }
9884 | }
9885 | return false0;
9886 | }
9887 |
9888 | /**
9889 | * Scan a Client Hello handshake message to see if the supported_versions
9890 | * extension is found, in which case the version field is legacy_version.
9891 | */
9892 | static bool_Bool
9893 | tls_scan_client_hello(tvbuff_t *tvb, uint32_t offset, uint32_t offset_end)
9894 | {
9895 | uint8_t session_id_length;
9896 |
9897 | uint16_t client_version = tvb_get_ntohs(tvb, offset);
9898 |
9899 | /*
9900 | * Try to look for supported_versions extension. Minimum length:
9901 | * 2 + 32 + 1 = 35 (version, random, session id length)
9902 | * 2 + 2 + 1 + 2 = 5 (cipher suite, compression method, extensions length)
9903 | * 2 + 2 + 2 = 6 (ext type, ext len, version)
9904 | *
9905 | * We only check for the [legacy_]version field to be [D]TLS 1.2; if it's 1.3,
9906 | * there's a separate expert info warning for that.
9907 | */
9908 | if ((client_version == TLSV1DOT2_VERSION0x303 || client_version == DTLSV1DOT2_VERSION0xfefd) && offset_end - offset >= 46) {
9909 | offset += 2;
9910 | offset += 32;
9911 | session_id_length = tvb_get_uint8(tvb, offset);
9912 | offset++;
9913 | if (offset_end - offset < session_id_length + 2u) {
9914 | return false0;
9915 | }
9916 | offset += session_id_length;
9917 | if (client_version == DTLSV1DOT2_VERSION0xfefd) {
9918 | uint8_t cookie_length = tvb_get_uint8(tvb, offset);
9919 | offset++;
9920 | if (offset_end - offset < cookie_length + 2u) {
9921 | return false0;
9922 | }
9923 | }
9924 | uint16_t cipher_suites_length = tvb_get_ntohs(tvb, offset);
9925 | offset += 2;
9926 | if (offset_end - offset < cipher_suites_length + 1u) {
9927 | return false0;
9928 | }
9929 | offset += cipher_suites_length;
9930 | uint8_t compression_methods_length = tvb_get_uint8(tvb, offset);
9931 | offset++;
9932 | if (offset_end - offset < compression_methods_length + 2u) {
9933 | return false0;
9934 | }
9935 | offset += compression_methods_length + 2;
9936 |
9937 | while (offset_end - offset >= 6) {
9938 | uint16_t ext_type = tvb_get_ntohs(tvb, offset);
9939 | uint16_t ext_len = tvb_get_ntohs(tvb, offset + 2);
9940 | if (offset_end - offset < 4u + ext_len) {
9941 | break; /* not enough data for type, length and data */
9942 | }
9943 | if (ext_type == SSL_HND_HELLO_EXT_SUPPORTED_VERSIONS43) {
9944 | return true1;
9945 | }
9946 | offset += 4 + ext_len;
9947 | }
9948 | }
9949 | return false0;
9950 | }
9951 | void
9952 | ssl_try_set_version(SslSession *session, SslDecryptSession *ssl,
9953 | uint8_t content_type, uint8_t handshake_type,
9954 | bool_Bool is_dtls, uint16_t version)
9955 | {
9956 | uint8_t tls13_draft = 0;
9957 |
9958 | if (!ssl_is_authoritative_version_message(content_type, handshake_type,
9959 | is_dtls))
9960 | return;
9961 |
9962 | version = tls_try_get_version(is_dtls, version, &tls13_draft);
9963 | if (version == SSL_VER_UNKNOWN0) {
9964 | return;
9965 | }
9966 |
9967 | session->tls13_draft_version = tls13_draft;
9968 | session->version = version;
9969 | if (ssl) {
9970 | ssl->state |= SSL_VERSION(1<<4);
9971 | ssl_debug_printf("%s found version 0x%04X -> state 0x%02X\n", G_STRFUNC((const char*) (__func__)), version, ssl->state);
9972 | }
9973 | }
9974 |
9975 | void
9976 | ssl_check_record_length(ssl_common_dissect_t *hf, packet_info *pinfo,
9977 | ContentType content_type,
9978 | unsigned record_length, proto_item *length_pi,
9979 | uint16_t version, tvbuff_t *decrypted_tvb)
9980 | {
9981 | unsigned max_expansion;
9982 | if (version == TLSV1DOT3_VERSION0x304) {
9983 | /* TLS 1.3: Max length is 2^14 + 256 */
9984 | max_expansion = 256;
9985 | } else {
9986 | /* RFC 5246, Section 6.2.3: TLSCiphertext.fragment length MUST NOT exceed 2^14 + 2048 */
9987 | max_expansion = 2048;
9988 | }
9989 | /*
9990 | * RFC 5246 (TLS 1.2), Section 6.2.1 forbids zero-length Handshake, Alert
9991 | * and ChangeCipherSpec.
9992 | * RFC 6520 (Heartbeats) does not mention zero-length Heartbeat fragments,
9993 | * so assume it is permitted.
9994 | * RFC 6347 (DTLS 1.2) does not mention zero-length fragments either, so
9995 | * assume TLS 1.2 requirements.
9996 | */
9997 | if (record_length == 0 &&
9998 | (content_type == SSL_ID_CHG_CIPHER_SPEC ||
9999 | content_type == SSL_ID_ALERT ||
10000 | content_type == SSL_ID_HANDSHAKE)) {
10001 | expert_add_info_format(pinfo, length_pi, &hf->ei.record_length_invalid,
10002 | "Zero-length %s fragments are not allowed",
10003 | val_to_str_const(content_type, ssl_31_content_type, "unknown"));
10004 | }
10005 | if (record_length > TLS_MAX_RECORD_LENGTH0x4000 + max_expansion) {
10006 | expert_add_info_format(pinfo, length_pi, &hf->ei.record_length_invalid,
10007 | "TLSCiphertext length MUST NOT exceed 2^14 + %u", max_expansion);
10008 | }
10009 | if (decrypted_tvb && tvb_captured_length(decrypted_tvb) > TLS_MAX_RECORD_LENGTH0x4000) {
10010 | expert_add_info_format(pinfo, length_pi, &hf->ei.record_length_invalid,
10011 | "TLSPlaintext length MUST NOT exceed 2^14");
10012 | }
10013 | }
10014 |
10015 | static void
10016 | ssl_set_cipher(SslDecryptSession *ssl, uint16_t cipher)
10017 | {
10018 | /* store selected cipher suite for decryption */
10019 | ssl->session.cipher = cipher;
10020 |
10021 | const SslCipherSuite *cs = ssl_find_cipher(cipher);
10022 | if (!cs) {
10023 | ssl->cipher_suite = NULL((void*)0);
10024 | ssl->state &= ~SSL_CIPHER(1<<2);
10025 | ssl_debug_printf("%s can't find cipher suite 0x%04X\n", G_STRFUNC((const char*) (__func__)), cipher);
10026 | } else if (ssl->session.version == SSLV3_VERSION0x300 && !(cs->dig == DIG_MD50x40 || cs->dig == DIG_SHA0x41)) {
10027 | /* A malicious packet capture contains a SSL 3.0 session using a TLS 1.2
10028 | * cipher suite that uses for example MACAlgorithm SHA256. Reject that
10029 | * to avoid a potential buffer overflow in ssl3_check_mac. */
10030 | ssl->cipher_suite = NULL((void*)0);
10031 | ssl->state &= ~SSL_CIPHER(1<<2);
10032 | ssl_debug_printf("%s invalid SSL 3.0 cipher suite 0x%04X\n", G_STRFUNC((const char*) (__func__)), cipher);
10033 | } else {
10034 | /* Cipher found, save this for the delayed decoder init */
10035 | ssl->cipher_suite = cs;
10036 | ssl->state |= SSL_CIPHER(1<<2);
10037 | ssl_debug_printf("%s found CIPHER 0x%04X %s -> state 0x%02X\n", G_STRFUNC((const char*) (__func__)), cipher,
10038 | val_to_str_ext_const(cipher, &ssl_31_ciphersuite_ext, "unknown"),
10039 | ssl->state);
10040 | }
10041 | }
10042 | /* }}} */
10043 |
10044 |
10045 | /* Client Hello and Server Hello dissections. {{{ */
10046 | static int
10047 | ssl_dissect_hnd_extension(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree,
10048 | packet_info* pinfo, uint32_t offset, uint32_t offset_end, uint8_t hnd_type,
10049 | SslSession *session, SslDecryptSession *ssl,
10050 | bool_Bool is_dtls, wmem_strbuf_t *ja3, ja4_data_t *ja4_data,
10051 | ssl_master_key_map_t *mk_map);
10052 | int
10053 | // NOLINTNEXTLINE(misc-no-recursion)
10054 | ssl_dissect_hnd_cli_hello(ssl_common_dissect_t *hf, tvbuff_t *tvb,
10055 | packet_info *pinfo, proto_tree *tree, uint32_t offset,
10056 | uint32_t offset_end, SslSession *session,
10057 | SslDecryptSession *ssl, dtls_hfs_t *dtls_hfs, ssl_master_key_map_t *mk_map)
10058 | {
10059 | /* struct {
10060 | * ProtocolVersion client_version;
10061 | * Random random;
10062 | * SessionID session_id;
10063 | * opaque cookie<0..32>; //new field for DTLS
10064 | * CipherSuite cipher_suites<2..2^16-1>;
10065 | * CompressionMethod compression_methods<1..2^8-1>;
10066 | * Extension client_hello_extension_list<0..2^16-1>;
10067 | * } ClientHello;
10068 | */
10069 | proto_item *ti;
10070 | proto_tree *cs_tree;
10071 | uint32_t client_version;
10072 | uint32_t cipher_suite_length;
10073 | uint32_t compression_methods_length;
10074 | uint8_t compression_method;
10075 | uint32_t next_offset;
10076 | uint32_t initial_offset = offset;
10077 | wmem_strbuf_t *ja3 = wmem_strbuf_new(pinfo->pool, "");
10078 | char *ja3_hash;
10079 | char *ja3_dash = "";
10080 | char *ja4, *ja4_r, *ja4_hash, *ja4_b, *ja4_c;
10081 | ja4_data_t ja4_data;
10082 | wmem_strbuf_t *ja4_a = wmem_strbuf_new(pinfo->pool, "");
10083 | wmem_strbuf_t *ja4_br = wmem_strbuf_new(pinfo->pool, "");
10084 | wmem_strbuf_t *ja4_cr = wmem_strbuf_new(pinfo->pool, "");
10085 | wmem_list_frame_t *curr_entry;
10086 |
10087 | DISSECTOR_ASSERT_CMPINT(initial_offset, <=, offset_end)((void) ((initial_offset <= offset_end) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion " "initial_offset" " " "<=" " " "offset_end" " (" "%" "l" "d" " " "<=" " " "%" "l" "d" ")", "epan/dissectors/packet-tls-utils.c" , 10087, (int64_t)initial_offset, (int64_t)offset_end))));
10088 | tvbuff_t *hello_tvb = tvb_new_subset_length(tvb, initial_offset, offset_end - initial_offset);
10089 | offset = 0;
10090 | offset_end = tvb_reported_length(hello_tvb);
10091 |
10092 | ja4_data.max_version = 0;
10093 | ja4_data.server_name_present = false0;
10094 | ja4_data.num_cipher_suites = 0;
10095 | ja4_data.num_extensions = 0;
10096 | ja4_data.alpn = wmem_strbuf_new(pinfo->pool, "");
10097 | ja4_data.cipher_list = wmem_list_new(pinfo->pool);
10098 | ja4_data.extension_list = wmem_list_new(pinfo->pool);
10099 | ja4_data.sighash_list = wmem_list_new(pinfo->pool);
10100 |
10101 | /* show the client version */
10102 | ti = proto_tree_add_item_ret_uint(tree, hf->hf.hs_client_version, hello_tvb,
10103 | offset, 2, ENC_BIG_ENDIAN0x00000000,
10104 | &client_version);
10105 | if (tls_scan_client_hello(hello_tvb, offset, offset_end)) {
10106 | expert_add_info(pinfo, ti, &hf->ei.legacy_version);
10107 | }
10108 | offset += 2;
10109 | wmem_strbuf_append_printf(ja3, "%i,", client_version);
10110 |
10111 | /*
10112 | * Is it version 1.3?
10113 | * If so, that's an error; TLS and DTLS 1.3 Client Hellos claim
10114 | * to be TLS 1.2, and mention 1.3 in an extension. See RFC 8446
10115 | * section 4.1.2 "Client Hello" and RFC 9147 Section 5.3 "Client
10116 | * Hello".
10117 | */
10118 | if (dtls_hfs != NULL((void*)0)) {
10119 | if (client_version == DTLSV1DOT3_VERSION0xfefc) {
10120 | /* Don't do that. */
10121 | expert_add_info(pinfo, ti, &hf->ei.client_version_error);
10122 | }
10123 | } else {
10124 | if (client_version == TLSV1DOT3_VERSION0x304) {
10125 | /* Don't do that. */
10126 | expert_add_info(pinfo, ti, &hf->ei.client_version_error);
10127 | }
10128 | }
10129 |
10130 | /* dissect fields that are present in both ClientHello and ServerHello */
10131 | offset = ssl_dissect_hnd_hello_common(hf, hello_tvb, pinfo, tree, offset, session, ssl, false0, false0);
10132 |
10133 | /* fields specific for DTLS (cookie_len, cookie) */
10134 | if (dtls_hfs != NULL((void*)0)) {
10135 | uint32_t cookie_length;
10136 | /* opaque cookie<0..32> (for DTLS only) */
10137 | if (!ssl_add_vector(hf, hello_tvb, pinfo, tree, offset, offset_end, &cookie_length,
10138 | dtls_hfs->hf_dtls_handshake_cookie_len, 0, 32)) {
10139 | return offset;
10140 | }
10141 | offset++;
10142 | if (cookie_length > 0) {
10143 | proto_tree_add_item(tree, dtls_hfs->hf_dtls_handshake_cookie,
10144 | hello_tvb, offset, cookie_length, ENC_NA0x00000000);
10145 | offset += cookie_length;
10146 | }
10147 | }
10148 |
10149 | /* CipherSuite cipher_suites<2..2^16-1> */
10150 | if (!ssl_add_vector(hf, hello_tvb, pinfo, tree, offset, offset_end, &cipher_suite_length,
10151 | hf->hf.hs_cipher_suites_len, 2, UINT16_MAX(65535))) {
10152 | return offset;
10153 | }
10154 | offset += 2;
10155 | next_offset = offset + cipher_suite_length;
10156 | ti = proto_tree_add_none_format(tree,
10157 | hf->hf.hs_cipher_suites,
10158 | hello_tvb, offset, cipher_suite_length,
10159 | "Cipher Suites (%d suite%s)",
10160 | cipher_suite_length / 2,
10161 | plurality(cipher_suite_length/2, "", "s")((cipher_suite_length/2) == 1 ? ("") : ("s")));
10162 | cs_tree = proto_item_add_subtree(ti, hf->ett.cipher_suites);
10163 | while (offset + 2 <= next_offset) {
10164 | uint32_t cipher_suite;
10165 |
10166 | proto_tree_add_item_ret_uint(cs_tree, hf->hf.hs_cipher_suite, hello_tvb, offset, 2,
10167 | ENC_BIG_ENDIAN0x00000000, &cipher_suite);
10168 | offset += 2;
10169 | if (!IS_GREASE_TLS(cipher_suite)((((cipher_suite) & 0x0f0f) == 0x0a0a) && (((cipher_suite ) & 0xff) == (((cipher_suite)>>8) & 0xff)))) {
10170 | wmem_strbuf_append_printf(ja3, "%s%i",ja3_dash, cipher_suite);
10171 | ja3_dash = "-";
10172 | ja4_data.num_cipher_suites += 1;
10173 | wmem_list_insert_sorted(ja4_data.cipher_list, GUINT_TO_POINTER(cipher_suite)((gpointer) (gulong) (cipher_suite)), wmem_compare_uint);
10174 | }
10175 | }
10176 | wmem_strbuf_append_c(ja3, ',');
10177 | if (!ssl_end_vector(hf, hello_tvb, pinfo, cs_tree, offset, next_offset)) {
10178 | offset = next_offset;
10179 | }
10180 |
10181 | /* CompressionMethod compression_methods<1..2^8-1> */
10182 | if (!ssl_add_vector(hf, hello_tvb, pinfo, tree, offset, offset_end, &compression_methods_length,
10183 | hf->hf.hs_comp_methods_len, 1, UINT8_MAX(255))) {
10184 | return offset;
10185 | }
10186 | offset++;
10187 | next_offset = offset + compression_methods_length;
10188 | ti = proto_tree_add_none_format(tree,
10189 | hf->hf.hs_comp_methods,
10190 | hello_tvb, offset, compression_methods_length,
10191 | "Compression Methods (%u method%s)",
10192 | compression_methods_length,
10193 | plurality(compression_methods_length,((compression_methods_length) == 1 ? ("") : ("s"))
10194 | "", "s")((compression_methods_length) == 1 ? ("") : ("s")));
10195 | cs_tree = proto_item_add_subtree(ti, hf->ett.comp_methods);
10196 | while (offset < next_offset) {
10197 | compression_method = tvb_get_uint8(hello_tvb, offset);
10198 | /* TODO: make reserved/private comp meth. fields selectable */
10199 | if (compression_method < 64)
10200 | proto_tree_add_uint(cs_tree, hf->hf.hs_comp_method,
10201 | hello_tvb, offset, 1, compression_method);
10202 | else if (compression_method < 193)
10203 | proto_tree_add_uint_format_value(cs_tree, hf->hf.hs_comp_method, hello_tvb, offset, 1,
10204 | compression_method, "Reserved - to be assigned by IANA (%u)",
10205 | compression_method);
10206 | else
10207 | proto_tree_add_uint_format_value(cs_tree, hf->hf.hs_comp_method, hello_tvb, offset, 1,
10208 | compression_method, "Private use range (%u)",
10209 | compression_method);
10210 | offset++;
10211 | }
10212 |
10213 | /* SSL v3.0 has no extensions, so length field can indeed be missing. */
10214 | if (offset < offset_end) {
10215 | offset = ssl_dissect_hnd_extension(hf, hello_tvb, tree, pinfo, offset,
10216 | offset_end, SSL_HND_CLIENT_HELLO,
10217 | session, ssl, dtls_hfs != NULL((void*)0), ja3, &ja4_data, mk_map);
10218 | if (ja4_data.max_version > 0) {
10219 | client_version = ja4_data.max_version;
10220 | }
10221 | } else {
10222 | wmem_strbuf_append_printf(ja3, ",,");
10223 | }
10224 |
10225 | if (proto_is_frame_protocol(pinfo->layers,"tcp")) {
10226 | wmem_strbuf_append(ja4_a, "t");
10227 | } else if (proto_is_frame_protocol(pinfo->layers,"quic")) {
10228 | wmem_strbuf_append(ja4_a, "q");
10229 | } else if (proto_is_frame_protocol(pinfo->layers,"dtls")) {
10230 | wmem_strbuf_append(ja4_a, "d");
10231 | }
10232 | wmem_strbuf_append_printf(ja4_a, "%s", val_to_str_const(client_version, ssl_version_ja4_names, "00"));
10233 | wmem_strbuf_append_printf(ja4_a, "%s", ja4_data.server_name_present ? "d" : "i");
10234 | if (ja4_data.num_cipher_suites > 99) {
10235 | wmem_strbuf_append(ja4_a, "99");
10236 | } else {
10237 | wmem_strbuf_append_printf(ja4_a, "%02d", ja4_data.num_cipher_suites);
10238 | }
10239 | if (ja4_data.num_extensions > 99) {
10240 | wmem_strbuf_append(ja4_a, "99");
10241 | } else {
10242 | wmem_strbuf_append_printf(ja4_a, "%02d", ja4_data.num_extensions);
10243 | }
10244 | if (wmem_strbuf_get_len(ja4_data.alpn) > 0 ) {
10245 | wmem_strbuf_append_printf(ja4_a, "%s", wmem_strbuf_get_str(ja4_data.alpn));
10246 | } else {
10247 | wmem_strbuf_append(ja4_a, "00");
10248 | }
10249 |
10250 | curr_entry = wmem_list_head(ja4_data.cipher_list);
10251 | for (unsigned i = 0; i < wmem_list_count(ja4_data.cipher_list); i++) {
10252 | wmem_strbuf_append_printf(ja4_br, "%04x", GPOINTER_TO_UINT(wmem_list_frame_data(curr_entry))((guint) (gulong) (wmem_list_frame_data(curr_entry))));
10253 | if (i < wmem_list_count(ja4_data.cipher_list) - 1) {
10254 | wmem_strbuf_append(ja4_br, ",");
10255 | }
10256 | curr_entry = wmem_list_frame_next(curr_entry);
10257 | }
10258 |
10259 | curr_entry = wmem_list_head(ja4_data.extension_list);
10260 | for (unsigned i = 0; i < wmem_list_count(ja4_data.extension_list); i++) {
10261 | wmem_strbuf_append_printf(ja4_cr, "%04x", GPOINTER_TO_UINT(wmem_list_frame_data(curr_entry))((guint) (gulong) (wmem_list_frame_data(curr_entry))));
10262 | if (i < wmem_list_count(ja4_data.extension_list) - 1) {
10263 | wmem_strbuf_append(ja4_cr, ",");
10264 | }
10265 | curr_entry = wmem_list_frame_next(curr_entry);
10266 | }
10267 |
10268 | if (wmem_list_count(ja4_data.sighash_list) > 0) {
10269 | wmem_strbuf_append(ja4_cr, "_");
10270 | curr_entry = wmem_list_head(ja4_data.sighash_list);
10271 | for (unsigned i = 0; i < wmem_list_count(ja4_data.sighash_list); i++) {
10272 | wmem_strbuf_append_printf(ja4_cr, "%04x", GPOINTER_TO_UINT(wmem_list_frame_data(curr_entry))((guint) (gulong) (wmem_list_frame_data(curr_entry))));
10273 | if (i < wmem_list_count(ja4_data.sighash_list) - 1) {
10274 | wmem_strbuf_append(ja4_cr, ",");
10275 | }
10276 | curr_entry = wmem_list_frame_next(curr_entry);
10277 | }
10278 | }
10279 | if ( wmem_strbuf_get_len(ja4_br) == 0 ) {
10280 | ja4_hash = g_strdup("000000000000")g_strdup_inline ("000000000000");
10281 | } else {
10282 | ja4_hash = g_compute_checksum_for_string(G_CHECKSUM_SHA256, wmem_strbuf_get_str(ja4_br),-1);
10283 | }
10284 | ja4_b = wmem_strndup(pinfo->pool, ja4_hash, 12);
10285 |
10286 | g_free(ja4_hash)(__builtin_object_size ((ja4_hash), 0) != ((size_t) - 1)) ? g_free_sized (ja4_hash, __builtin_object_size ((ja4_hash), 0)) : (g_free) (ja4_hash);
10287 | if ( wmem_strbuf_get_len(ja4_cr) == 0 ) {
10288 | ja4_hash = g_strdup("000000000000")g_strdup_inline ("000000000000");
10289 | } else {
10290 | ja4_hash = g_compute_checksum_for_string(G_CHECKSUM_SHA256, wmem_strbuf_get_str(ja4_cr),-1);
10291 | }
10292 | ja4_c = wmem_strndup(pinfo->pool, ja4_hash, 12);
10293 | g_free(ja4_hash)(__builtin_object_size ((ja4_hash), 0) != ((size_t) - 1)) ? g_free_sized (ja4_hash, __builtin_object_size ((ja4_hash), 0)) : (g_free) (ja4_hash);
10294 |
10295 | ja4 = wmem_strdup_printf(pinfo->pool, "%s_%s_%s", wmem_strbuf_get_str(ja4_a), ja4_b, ja4_c);
10296 | ja4_r = wmem_strdup_printf(pinfo->pool, "%s_%s_%s", wmem_strbuf_get_str(ja4_a), wmem_strbuf_get_str(ja4_br), wmem_strbuf_get_str(ja4_cr));
10297 |
10298 | ti = proto_tree_add_string(tree, hf->hf.hs_ja4, hello_tvb, offset, 0, ja4);
10299 | proto_item_set_generated(ti);
10300 | ti = proto_tree_add_string(tree, hf->hf.hs_ja4_r, hello_tvb, offset, 0, ja4_r);
10301 | proto_item_set_generated(ti);
10302 |
10303 | ja3_hash = g_compute_checksum_for_string(G_CHECKSUM_MD5, wmem_strbuf_get_str(ja3),
10304 | wmem_strbuf_get_len(ja3));
10305 | ti = proto_tree_add_string(tree, hf->hf.hs_ja3_full, hello_tvb, offset, 0, wmem_strbuf_get_str(ja3));
10306 | proto_item_set_generated(ti);
10307 | ti = proto_tree_add_string(tree, hf->hf.hs_ja3_hash, hello_tvb, offset, 0, ja3_hash);
10308 | proto_item_set_generated(ti);
10309 | g_free(ja3_hash)(__builtin_object_size ((ja3_hash), 0) != ((size_t) - 1)) ? g_free_sized (ja3_hash, __builtin_object_size ((ja3_hash), 0)) : (g_free) (ja3_hash);
10310 | return initial_offset + offset;
10311 | }
10312 |
10313 | void
10314 | ssl_dissect_hnd_srv_hello(ssl_common_dissect_t *hf, tvbuff_t *tvb,
10315 | packet_info* pinfo, proto_tree *tree, uint32_t offset, uint32_t offset_end,
10316 | SslSession *session, SslDecryptSession *ssl,
10317 | bool_Bool is_dtls, bool_Bool is_hrr)
10318 | {
10319 | /* struct {
10320 | * ProtocolVersion server_version;
10321 | * Random random;
10322 | * SessionID session_id; // TLS 1.2 and before
10323 | * CipherSuite cipher_suite;
10324 | * CompressionMethod compression_method; // TLS 1.2 and before
10325 | * Extension server_hello_extension_list<0..2^16-1>;
10326 | * } ServerHello;
10327 | */
10328 | uint8_t draft_version = session->tls13_draft_version;
10329 | proto_item *ti;
10330 | uint32_t server_version;
10331 | uint32_t cipher_suite;
10332 | uint32_t initial_offset = offset;
10333 | wmem_strbuf_t *ja3 = wmem_strbuf_new(pinfo->pool, "");
10334 | char *ja3_hash;
10335 |
10336 | col_set_str(pinfo->cinfo, COL_PROTOCOL,
10337 | val_to_str_const(session->version, ssl_version_short_names, "SSL"));
10338 |
10339 | /* Initially assume that the session is resumed. If this is not the case, a
10340 | * ServerHelloDone will be observed before the ChangeCipherSpec message
10341 | * which will reset this flag. */
10342 | session->is_session_resumed = true1;
10343 |
10344 | /* show the server version */
10345 | ti = proto_tree_add_item_ret_uint(tree, hf->hf.hs_server_version, tvb,
10346 | offset, 2, ENC_BIG_ENDIAN0x00000000, &server_version);
10347 |
10348 | uint16_t supported_server_version;
10349 | if (tls_scan_server_hello(tvb, offset, offset_end, &supported_server_version, NULL((void*)0))) {
10350 | expert_add_info(pinfo, ti, &hf->ei.legacy_version);
10351 | }
10352 | /*
10353 | * Is it version 1.3?
10354 | * If so, that's an error; TLS and DTLS 1.3 Server Hellos claim
10355 | * to be TLS 1.2, and mention 1.3 in an extension. See RFC 8446
10356 | * section 4.1.3 "Server Hello" and RFC 9147 Section 5.4 "Server
10357 | * Hello".
10358 | */
10359 | if (is_dtls) {
10360 | if (server_version == DTLSV1DOT3_VERSION0xfefc) {
10361 | /* Don't do that. */
10362 | expert_add_info(pinfo, ti, &hf->ei.server_version_error);
10363 | }
10364 | } else {
10365 | if (server_version == TLSV1DOT3_VERSION0x304) {
10366 | /* Don't do that. */
10367 | expert_add_info(pinfo, ti, &hf->ei.server_version_error);
10368 | }
10369 | }
10370 |
10371 | offset += 2;
10372 | wmem_strbuf_append_printf(ja3, "%i", server_version);
10373 |
10374 | /* dissect fields that are present in both ClientHello and ServerHello */
10375 | offset = ssl_dissect_hnd_hello_common(hf, tvb, pinfo, tree, offset, session, ssl, true1, is_hrr);
10376 |
10377 | if (ssl) {
10378 | /* store selected cipher suite for decryption */
10379 | ssl_set_cipher(ssl, tvb_get_ntohs(tvb, offset));
10380 | }
10381 |
10382 | /* now the server-selected cipher suite */
10383 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_cipher_suite,
10384 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &cipher_suite);
10385 | offset += 2;
10386 | wmem_strbuf_append_printf(ja3, ",%i,", cipher_suite);
10387 |
10388 | /* No compression with TLS 1.3 before draft -22 */
10389 | if (!(session->version == TLSV1DOT3_VERSION0x304 && draft_version > 0 && draft_version < 22)) {
10390 | if (ssl) {
10391 | /* store selected compression method for decryption */
10392 | ssl->session.compression = tvb_get_uint8(tvb, offset);
10393 | }
10394 | /* and the server-selected compression method */
10395 | proto_tree_add_item(tree, hf->hf.hs_comp_method,
10396 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
10397 | offset++;
10398 | }
10399 |
10400 | /* SSL v3.0 has no extensions, so length field can indeed be missing. */
10401 | if (offset < offset_end) {
10402 | offset = ssl_dissect_hnd_extension(hf, tvb, tree, pinfo, offset,
10403 | offset_end,
10404 | is_hrr ? SSL_HND_HELLO_RETRY_REQUEST : SSL_HND_SERVER_HELLO,
10405 | session, ssl, is_dtls, ja3, NULL((void*)0), NULL((void*)0));
10406 | }
10407 |
10408 | if (ssl && ssl->ech_transcript.data_len > 0 && (ssl->state & SSL_CIPHER(1<<2)) && ssl->client_random.data_len > 0) {
10409 | /* RFC 9849 7.2 Backend Server */
10410 | int hash_algo = ssl_get_digest_by_name(ssl_cipher_suite_dig(ssl->cipher_suite)->name);
10411 | SSL_MDgcry_md_hd_t mc;
10412 | if (hash_algo && ssl_md_init(&mc, hash_algo) == 0) {
10413 | unsigned char transcript_hash[DIGEST_MAX_SIZE48];
10414 | unsigned char prk[DIGEST_MAX_SIZE48];
10415 | unsigned char *ech_verify_out = NULL((void*)0);
10416 | unsigned int len;
10417 | ssl_md_update(&mc, ssl->ech_transcript.data, ssl->ech_transcript.data_len);
10418 | if (is_hrr) {
10419 | /* RFC 8446 4.4.1 The Transcript Hash
10420 | * Special synthetic handshake following a HelloRetryRequest */
10421 | ssl_md_final(&mc, transcript_hash, &len);
10422 | wmem_free(wmem_file_scope(), ssl->ech_transcript.data);
10423 | ssl->ech_transcript.data_len = 4 + len;
10424 | ssl->ech_transcript.data = (unsigned char*)wmem_alloc(wmem_file_scope(), 4 + len + 4 + offset_end - initial_offset);
10425 | ssl->ech_transcript.data[0] = SSL_HND_MESSAGE_HASH;
10426 | ssl->ech_transcript.data[1] = 0;
10427 | ssl->ech_transcript.data[2] = 0;
10428 | ssl->ech_transcript.data[3] = len;
10429 | memcpy(ssl->ech_transcript.data + 4, transcript_hash, len);
10430 | ssl_md_reset(&mc);
10431 | ssl_md_update(&mc, ssl->ech_transcript.data, 4 + len);
10432 | } else {
10433 | ssl->ech_transcript.data = wmem_realloc(wmem_file_scope(), ssl->ech_transcript.data,
10434 | ssl->ech_transcript.data_len + 4 + offset_end - initial_offset);
10435 | }
10436 | if (initial_offset > 4) {
10437 | tvb_memcpy(tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len, initial_offset - 4,
10438 | 4 + offset_end - initial_offset);
10439 | if (is_hrr)
10440 | ssl_md_update(&mc, tvb_get_ptr(tvb, initial_offset-4, 38), 38);
10441 | else
10442 | ssl_md_update(&mc, tvb_get_ptr(tvb, initial_offset-4, 30), 30);
10443 | } else {
10444 | uint8_t prefix[4] = {SSL_HND_SERVER_HELLO, 0x00, 0x00, 0x00};
10445 | prefix[2] = ((offset - initial_offset) >> 8);
10446 | prefix[3] = (offset - initial_offset) & 0xff;
10447 | memcpy(ssl->ech_transcript.data + ssl->ech_transcript.data_len, prefix, 4);
10448 | tvb_memcpy(tvb, ssl->ech_transcript.data + ssl->ech_transcript.data_len + 4, initial_offset,
10449 | offset_end - initial_offset);
10450 | ssl_md_update(&mc, prefix, 4);
10451 | if (is_hrr)
10452 | ssl_md_update(&mc, tvb_get_ptr(tvb, initial_offset, 34), 34);
10453 | else
10454 | ssl_md_update(&mc, tvb_get_ptr(tvb, initial_offset, 26), 26);
10455 | }
10456 | ssl->ech_transcript.data_len += 4 + offset_end - initial_offset;
10457 | uint8_t zeros[8] = { 0 };
10458 | uint32_t confirmation_offset = initial_offset + 26;
10459 | if (is_hrr) {
10460 | uint32_t hrr_offset = initial_offset + 34;
10461 | ssl_md_update(&mc, tvb_get_ptr(tvb, hrr_offset,
10462 | tvb_get_uint8(tvb, hrr_offset) + 1), tvb_get_uint8(tvb, hrr_offset) + 1);
10463 | hrr_offset += tvb_get_uint8(tvb, hrr_offset) + 1;
10464 | ssl_md_update(&mc, tvb_get_ptr(tvb, hrr_offset, 3), 3);
10465 | hrr_offset += 3;
10466 | uint32_t extensions_end = hrr_offset + tvb_get_ntohs(tvb, hrr_offset) + 2;
10467 | ssl_md_update(&mc, tvb_get_ptr(tvb, hrr_offset, 2), 2);
10468 | hrr_offset += 2;
10469 | while (extensions_end - hrr_offset >= 4) {
10470 | if (tvb_get_ntohs(tvb, hrr_offset) == SSL_HND_HELLO_EXT_ENCRYPTED_CLIENT_HELLO65037 &&
10471 | tvb_get_ntohs(tvb, hrr_offset + 2) == 8) {
10472 | confirmation_offset = hrr_offset + 4;
10473 | ssl_md_update(&mc, tvb_get_ptr(tvb, hrr_offset, 4), 4);
10474 | ssl_md_update(&mc, zeros, 8);
10475 | hrr_offset += 12;
10476 | } else {
10477 | ssl_md_update(&mc, tvb_get_ptr(tvb, hrr_offset, tvb_get_ntohs(tvb, hrr_offset + 2) + 4),
10478 | tvb_get_ntohs(tvb, hrr_offset + 2) + 4);
10479 | hrr_offset += tvb_get_ntohs(tvb, hrr_offset + 2) + 4;
10480 | }
10481 | }
10482 | } else {
10483 | ssl_md_update(&mc, zeros, 8);
10484 | ssl_md_update(&mc, tvb_get_ptr(tvb, initial_offset + 34, offset - initial_offset - 34),
10485 | offset - initial_offset - 34);
10486 | }
10487 | ssl_md_final(&mc, transcript_hash, &len);
10488 | ssl_md_cleanup(&mc);
10489 | hkdf_extract(hash_algo, NULL((void*)0), 0, ssl->client_random.data, 32, prk);
10490 | StringInfo prk_string = {prk, len};
10491 | if (tls13_hkdf_expand_label_context(hash_algo, &prk_string, tls13_hkdf_label_prefix(ssl),
10492 | is_hrr ? "hrr ech accept confirmation" : "ech accept confirmation",
10493 | transcript_hash, len, 8, &ech_verify_out)) {
10494 | memcpy(is_hrr ? ssl->session.hrr_ech_confirmation : ssl->session.ech_confirmation, ech_verify_out, 8);
10495 | if (tvb_memeql(tvb, confirmation_offset, ech_verify_out, 8) == -1) {
10496 | if (is_hrr) {
10497 | ssl->session.hrr_ech_declined = true1;
10498 | ssl->session.first_ch_ech_frame = 0;
10499 | }
10500 | memcpy(ssl->client_random.data, ssl->session.client_random.data, ssl->session.client_random.data_len);
10501 | ssl_print_data("Updated Client Random", ssl->client_random.data, 32);
10502 | }
10503 | wmem_free(NULL((void*)0), ech_verify_out);
10504 | }
10505 | ssl->session.ech = true1;
10506 | }
10507 | }
10508 |
10509 | ja3_hash = g_compute_checksum_for_string(G_CHECKSUM_MD5, wmem_strbuf_get_str(ja3),
10510 | wmem_strbuf_get_len(ja3));
10511 | ti = proto_tree_add_string(tree, hf->hf.hs_ja3s_full, tvb, offset, 0, wmem_strbuf_get_str(ja3));
10512 | proto_item_set_generated(ti);
10513 | ti = proto_tree_add_string(tree, hf->hf.hs_ja3s_hash, tvb, offset, 0, ja3_hash);
10514 | proto_item_set_generated(ti);
10515 | g_free(ja3_hash)(__builtin_object_size ((ja3_hash), 0) != ((size_t) - 1)) ? g_free_sized (ja3_hash, __builtin_object_size ((ja3_hash), 0)) : (g_free) (ja3_hash);
10516 | }
10517 | /* Client Hello and Server Hello dissections. }}} */
10518 |
10519 | /* New Session Ticket dissection. {{{ */
10520 | void
10521 | ssl_dissect_hnd_new_ses_ticket(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
10522 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
10523 | SslSession *session, SslDecryptSession *ssl,
10524 | bool_Bool is_dtls, GHashTable *session_hash)
10525 | {
10526 | /* https://tools.ietf.org/html/rfc5077#section-3.3 (TLS >= 1.0):
10527 | * struct {
10528 | * uint32 ticket_lifetime_hint;
10529 | * opaque ticket<0..2^16-1>;
10530 | * } NewSessionTicket;
10531 | *
10532 | * RFC 8446 Section 4.6.1 (TLS 1.3):
10533 | * struct {
10534 | * uint32 ticket_lifetime;
10535 | * uint32 ticket_age_add;
10536 | * opaque ticket_nonce<0..255>; // new in draft -21, updated in -22
10537 | * opaque ticket<1..2^16-1>;
10538 | * Extension extensions<0..2^16-2>;
10539 | * } NewSessionTicket;
10540 | */
10541 | proto_tree *subtree;
10542 | proto_item *subitem;
10543 | uint32_t ticket_len;
10544 | bool_Bool is_tls13 = session->version == TLSV1DOT3_VERSION0x304 || session->version == DTLSV1DOT3_VERSION0xfefc;
10545 | unsigned char draft_version = session->tls13_draft_version;
10546 | uint32_t lifetime_hint;
10547 |
10548 | subtree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
10549 | hf->ett.session_ticket, NULL((void*)0),
10550 | "TLS Session Ticket");
10551 |
10552 | /* ticket lifetime hint */
10553 | subitem = proto_tree_add_item_ret_uint(subtree, hf->hf.hs_session_ticket_lifetime_hint,
10554 | tvb, offset, 4, ENC_BIG_ENDIAN0x00000000, &lifetime_hint);
10555 | offset += 4;
10556 |
10557 | if (lifetime_hint >= 60) {
10558 | char *time_str = unsigned_time_secs_to_str(pinfo->pool, lifetime_hint);
10559 | proto_item_append_text(subitem, " (%s)", time_str);
10560 | }
10561 |
10562 | if (is_tls13) {
10563 |
10564 | /* for TLS 1.3: ticket_age_add */
10565 | proto_tree_add_item(subtree, hf->hf.hs_session_ticket_age_add,
10566 | tvb, offset, 4, ENC_BIG_ENDIAN0x00000000);
10567 | offset += 4;
10568 |
10569 | /* for TLS 1.3: ticket_nonce (coming with Draft 21)*/
10570 | if (draft_version == 0 || draft_version >= 21) {
10571 | uint32_t ticket_nonce_len;
10572 |
10573 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, offset_end, &ticket_nonce_len,
10574 | hf->hf.hs_session_ticket_nonce_len, 0, 255)) {
10575 | return;
10576 | }
10577 | offset++;
10578 |
10579 | proto_tree_add_item(subtree, hf->hf.hs_session_ticket_nonce, tvb, offset, ticket_nonce_len, ENC_NA0x00000000);
10580 | offset += ticket_nonce_len;
10581 | }
10582 |
10583 | }
10584 |
10585 | /* opaque ticket<0..2^16-1> (with TLS 1.3 the minimum is 1) */
10586 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, offset_end, &ticket_len,
10587 | hf->hf.hs_session_ticket_len, is_tls13 ? 1 : 0, UINT16_MAX(65535))) {
10588 | return;
10589 | }
10590 | offset += 2;
10591 |
10592 | /* Content depends on implementation, so just show data! */
10593 | proto_tree_add_item(subtree, hf->hf.hs_session_ticket,
10594 | tvb, offset, ticket_len, ENC_NA0x00000000);
10595 | /* save the session ticket to cache for ssl_finalize_decryption */
10596 | if (ssl && !is_tls13) {
10597 | if (ssl->session.is_session_resumed) {
10598 | /* NewSessionTicket is received in ServerHello before ChangeCipherSpec
10599 | * (Abbreviated Handshake Using New Session Ticket).
10600 | * Restore the master key for this session ticket before saving
10601 | * it to the new session ticket. */
10602 | ssl_restore_master_key(ssl, "Session Ticket", false0,
10603 | session_hash, &ssl->session_ticket);
10604 | }
10605 | tvb_ensure_bytes_exist(tvb, offset, ticket_len);
10606 | ssl->session_ticket.data = (unsigned char*)wmem_realloc(wmem_file_scope(),
10607 | ssl->session_ticket.data, ticket_len);
10608 | ssl->session_ticket.data_len = ticket_len;
10609 | tvb_memcpy(tvb, ssl->session_ticket.data, offset, ticket_len);
10610 | /* NewSessionTicket is received after the first (client)
10611 | * ChangeCipherSpec, and before the second (server) ChangeCipherSpec.
10612 | * Since the second CCS has already the session key available it will
10613 | * just return. To ensure that the session ticket is mapped to a
10614 | * master key (from the first CCS), save the ticket here too. */
10615 | ssl_save_master_key("Session Ticket", session_hash,
10616 | &ssl->session_ticket, &ssl->master_secret);
10617 | ssl->state |= SSL_NEW_SESSION_TICKET(1<<10);
10618 | }
10619 | offset += ticket_len;
10620 |
10621 | if (is_tls13) {
10622 | ssl_dissect_hnd_extension(hf, tvb, subtree, pinfo, offset,
10623 | offset_end, SSL_HND_NEWSESSION_TICKET,
10624 | session, ssl, is_dtls, NULL((void*)0), NULL((void*)0), NULL((void*)0));
10625 | }
10626 | } /* }}} */
10627 |
10628 | void
10629 | ssl_dissect_hnd_hello_retry_request(ssl_common_dissect_t *hf, tvbuff_t *tvb,
10630 | packet_info* pinfo, proto_tree *tree, uint32_t offset, uint32_t offset_end,
10631 | SslSession *session, SslDecryptSession *ssl,
10632 | bool_Bool is_dtls)
10633 | {
10634 | /* https://tools.ietf.org/html/draft-ietf-tls-tls13-19#section-4.1.4
10635 | * struct {
10636 | * ProtocolVersion server_version;
10637 | * CipherSuite cipher_suite; // not before draft -19
10638 | * Extension extensions<2..2^16-1>;
10639 | * } HelloRetryRequest;
10640 | * Note: no longer used since draft -22
10641 | */
10642 | uint32_t version;
10643 | uint8_t draft_version;
10644 |
10645 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_server_version, tvb,
10646 | offset, 2, ENC_BIG_ENDIAN0x00000000, &version);
10647 | draft_version = extract_tls13_draft_version(version);
10648 | offset += 2;
10649 |
10650 | if (draft_version == 0 || draft_version >= 19) {
10651 | proto_tree_add_item(tree, hf->hf.hs_cipher_suite,
10652 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
10653 | offset += 2;
10654 | }
10655 |
10656 | ssl_dissect_hnd_extension(hf, tvb, tree, pinfo, offset,
10657 | offset_end, SSL_HND_HELLO_RETRY_REQUEST,
10658 | session, ssl, is_dtls, NULL((void*)0), NULL((void*)0), NULL((void*)0));
10659 | }
10660 |
10661 | void
10662 | ssl_dissect_hnd_encrypted_extensions(ssl_common_dissect_t *hf, tvbuff_t *tvb,
10663 | packet_info* pinfo, proto_tree *tree, uint32_t offset, uint32_t offset_end,
10664 | SslSession *session, SslDecryptSession *ssl,
10665 | bool_Bool is_dtls)
10666 | {
10667 | /* RFC 8446 Section 4.3.1
10668 | * struct {
10669 | * Extension extensions<0..2^16-1>;
10670 | * } EncryptedExtensions;
10671 | */
10672 | ssl_dissect_hnd_extension(hf, tvb, tree, pinfo, offset,
10673 | offset_end, SSL_HND_ENCRYPTED_EXTENSIONS,
10674 | session, ssl, is_dtls, NULL((void*)0), NULL((void*)0), NULL((void*)0));
10675 | }
10676 |
10677 | /* Certificate and Certificate Request dissections. {{{ */
10678 | void
10679 | ssl_dissect_hnd_cert(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree,
10680 | uint32_t offset, uint32_t offset_end, packet_info *pinfo,
10681 | SslSession *session, SslDecryptSession *ssl _U___attribute__((unused)),
10682 | bool_Bool is_from_server, bool_Bool is_dtls)
10683 | {
10684 | /* opaque ASN.1Cert<1..2^24-1>;
10685 | *
10686 | * Before RFC 8446 (TLS <= 1.2):
10687 | * struct {
10688 | * select(certificate_type) {
10689 | *
10690 | * // certificate type defined in RFC 7250
10691 | * case RawPublicKey:
10692 | * opaque ASN.1_subjectPublicKeyInfo<1..2^24-1>;
10693 | *
10694 | * // X.509 certificate defined in RFC 5246
10695 | * case X.509:
10696 | * ASN.1Cert certificate_list<0..2^24-1>;
10697 | * };
10698 | * } Certificate;
10699 | *
10700 | * RFC 8446 (since draft -20):
10701 | * struct {
10702 | * select(certificate_type){
10703 | * case RawPublicKey:
10704 | * // From RFC 7250 ASN.1_subjectPublicKeyInfo
10705 | * opaque ASN1_subjectPublicKeyInfo<1..2^24-1>;
10706 | *
10707 | * case X.509:
10708 | * opaque cert_data<1..2^24-1>;
10709 | * }
10710 | * Extension extensions<0..2^16-1>;
10711 | * } CertificateEntry;
10712 | * struct {
10713 | * opaque certificate_request_context<0..2^8-1>;
10714 | * CertificateEntry certificate_list<0..2^24-1>;
10715 | * } Certificate;
10716 | */
10717 | enum { CERT_X509, CERT_RPK } cert_type;
10718 | asn1_ctx_t asn1_ctx;
10719 | #if defined(HAVE_LIBGNUTLS1)
10720 | gnutls_datum_t subjectPublicKeyInfo = { NULL((void*)0), 0 };
10721 | unsigned certificate_index = 0;
10722 | #endif
10723 | uint32_t next_offset, certificate_list_length, cert_length;
10724 | proto_tree *subtree = tree;
10725 |
10726 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
10727 |
10728 | if ((is_from_server && session->server_cert_type == SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY2) ||
10729 | (!is_from_server && session->client_cert_type == SSL_HND_CERT_TYPE_RAW_PUBLIC_KEY2)) {
10730 | cert_type = CERT_RPK;
10731 | } else {
10732 | cert_type = CERT_X509;
10733 | }
10734 |
10735 | #if defined(HAVE_LIBGNUTLS1)
10736 | /* Ask the pkcs1 dissector to return the public key details */
10737 | if (ssl)
10738 | asn1_ctx.private_data = &subjectPublicKeyInfo;
10739 | #endif
10740 |
10741 | /* TLS 1.3: opaque certificate_request_context<0..2^8-1> */
10742 | if (session->version == TLSV1DOT3_VERSION0x304 || session->version == DTLSV1DOT3_VERSION0xfefc) {
10743 | uint32_t context_length;
10744 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &context_length,
10745 | hf->hf.hs_certificate_request_context_length, 0, UINT8_MAX(255))) {
10746 | return;
10747 | }
10748 | offset++;
10749 | if (context_length > 0) {
10750 | proto_tree_add_item(tree, hf->hf.hs_certificate_request_context,
10751 | tvb, offset, context_length, ENC_NA0x00000000);
10752 | offset += context_length;
10753 | }
10754 | }
10755 |
10756 | if ((session->version != TLSV1DOT3_VERSION0x304 && session->version != DTLSV1DOT3_VERSION0xfefc) && cert_type == CERT_RPK) {
10757 | /* For RPK before TLS 1.3, the single RPK is stored directly without
10758 | * another "certificate_list" field. */
10759 | certificate_list_length = offset_end - offset;
10760 | next_offset = offset_end;
10761 | } else {
10762 | /* CertificateEntry certificate_list<0..2^24-1> */
10763 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &certificate_list_length,
10764 | hf->hf.hs_certificates_len, 0, G_MAXUINT24((1U << 24) - 1))) {
10765 | return;
10766 | }
10767 | offset += 3; /* 24-bit length value */
10768 | next_offset = offset + certificate_list_length;
10769 | }
10770 |
10771 | /* RawPublicKey must have one cert, but X.509 can have multiple. */
10772 | if (certificate_list_length > 0 && cert_type == CERT_X509) {
10773 | proto_item *ti;
10774 |
10775 | ti = proto_tree_add_none_format(tree,
10776 | hf->hf.hs_certificates,
10777 | tvb, offset, certificate_list_length,
10778 | "Certificates (%u bytes)",
10779 | certificate_list_length);
10780 |
10781 | /* make it a subtree */
10782 | subtree = proto_item_add_subtree(ti, hf->ett.certificates);
10783 | }
10784 |
10785 | while (offset < next_offset) {
10786 | switch (cert_type) {
10787 | case CERT_RPK:
10788 | /* TODO add expert info if there is more than one RPK entry (certificate_index > 0) */
10789 | /* opaque ASN.1_subjectPublicKeyInfo<1..2^24-1> */
10790 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, next_offset, &cert_length,
10791 | hf->hf.hs_certificate_len, 1, G_MAXUINT24((1U << 24) - 1))) {
10792 | return;
10793 | }
10794 | offset += 3;
10795 |
10796 | dissect_x509af_SubjectPublicKeyInfo(false0, tvb, offset, &asn1_ctx, subtree, hf->hf.hs_certificate);
10797 | offset += cert_length;
10798 | break;
10799 | case CERT_X509:
10800 | /* opaque ASN1Cert<1..2^24-1> */
10801 | if (!ssl_add_vector(hf, tvb, pinfo, subtree, offset, next_offset, &cert_length,
10802 | hf->hf.hs_certificate_len, 1, G_MAXUINT24((1U << 24) - 1))) {
10803 | return;
10804 | }
10805 | offset += 3;
10806 |
10807 | dissect_x509af_Certificate(false0, tvb, offset, &asn1_ctx, subtree, hf->hf.hs_certificate);
10808 | #if defined(HAVE_LIBGNUTLS1)
10809 | if (is_from_server && ssl && certificate_index == 0) {
10810 | ssl_find_private_key_by_pubkey(ssl, &subjectPublicKeyInfo);
10811 | /* Only attempt to get the RSA modulus for the first cert. */
10812 | asn1_ctx.private_data = NULL((void*)0);
10813 | }
10814 | #endif
10815 | offset += cert_length;
10816 | break;
10817 | }
10818 |
10819 | /* TLS 1.3: Extension extensions<0..2^16-1> */
10820 | if ((session->version == TLSV1DOT3_VERSION0x304 || session->version == DTLSV1DOT3_VERSION0xfefc)) {
10821 | offset = ssl_dissect_hnd_extension(hf, tvb, subtree, pinfo, offset,
10822 | next_offset, SSL_HND_CERTIFICATE,
10823 | session, ssl, is_dtls, NULL((void*)0), NULL((void*)0), NULL((void*)0));
10824 | }
10825 |
10826 | #if defined(HAVE_LIBGNUTLS1)
10827 | certificate_index++;
10828 | #endif
10829 | }
10830 | }
10831 |
10832 | void
10833 | ssl_dissect_hnd_cert_req(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
10834 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
10835 | SslSession *session, bool_Bool is_dtls)
10836 | {
10837 | /* From SSL 3.0 and up (note that since TLS 1.1 certificate_authorities can be empty):
10838 | * enum {
10839 | * rsa_sign(1), dss_sign(2), rsa_fixed_dh(3), dss_fixed_dh(4),
10840 | * (255)
10841 | * } ClientCertificateType;
10842 | *
10843 | * opaque DistinguishedName<1..2^16-1>;
10844 | *
10845 | * struct {
10846 | * ClientCertificateType certificate_types<1..2^8-1>;
10847 | * DistinguishedName certificate_authorities<3..2^16-1>;
10848 | * } CertificateRequest;
10849 | *
10850 | *
10851 | * As per TLSv1.2 (RFC 5246) the format has changed to:
10852 | *
10853 | * enum {
10854 | * rsa_sign(1), dss_sign(2), rsa_fixed_dh(3), dss_fixed_dh(4),
10855 | * rsa_ephemeral_dh_RESERVED(5), dss_ephemeral_dh_RESERVED(6),
10856 | * fortezza_dms_RESERVED(20), (255)
10857 | * } ClientCertificateType;
10858 | *
10859 | * enum {
10860 | * none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5),
10861 | * sha512(6), (255)
10862 | * } HashAlgorithm;
10863 | *
10864 | * enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) }
10865 | * SignatureAlgorithm;
10866 | *
10867 | * struct {
10868 | * HashAlgorithm hash;
10869 | * SignatureAlgorithm signature;
10870 | * } SignatureAndHashAlgorithm;
10871 | *
10872 | * SignatureAndHashAlgorithm
10873 | * supported_signature_algorithms<2..2^16-2>;
10874 | *
10875 | * opaque DistinguishedName<1..2^16-1>;
10876 | *
10877 | * struct {
10878 | * ClientCertificateType certificate_types<1..2^8-1>;
10879 | * SignatureAndHashAlgorithm supported_signature_algorithms<2^16-1>;
10880 | * DistinguishedName certificate_authorities<0..2^16-1>;
10881 | * } CertificateRequest;
10882 | *
10883 | * draft-ietf-tls-tls13-18:
10884 | * struct {
10885 | * opaque certificate_request_context<0..2^8-1>;
10886 | * SignatureScheme
10887 | * supported_signature_algorithms<2..2^16-2>;
10888 | * DistinguishedName certificate_authorities<0..2^16-1>;
10889 | * CertificateExtension certificate_extensions<0..2^16-1>;
10890 | * } CertificateRequest;
10891 | *
10892 | * RFC 8446 (since draft-ietf-tls-tls13-19):
10893 | *
10894 | * struct {
10895 | * opaque certificate_request_context<0..2^8-1>;
10896 | * Extension extensions<2..2^16-1>;
10897 | * } CertificateRequest;
10898 | */
10899 | proto_item *ti;
10900 | proto_tree *subtree;
10901 | uint32_t next_offset;
10902 | asn1_ctx_t asn1_ctx;
10903 | bool_Bool is_tls13 = (session->version == TLSV1DOT3_VERSION0x304 || session->version == DTLSV1DOT3_VERSION0xfefc);
10904 | unsigned char draft_version = session->tls13_draft_version;
10905 |
10906 | if (!tree)
10907 | return;
10908 |
10909 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo);
10910 |
10911 | if (is_tls13) {
10912 | uint32_t context_length;
10913 | /* opaque certificate_request_context<0..2^8-1> */
10914 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &context_length,
10915 | hf->hf.hs_certificate_request_context_length, 0, UINT8_MAX(255))) {
10916 | return;
10917 | }
10918 | offset++;
10919 | if (context_length > 0) {
10920 | proto_tree_add_item(tree, hf->hf.hs_certificate_request_context,
10921 | tvb, offset, context_length, ENC_NA0x00000000);
10922 | offset += context_length;
10923 | }
10924 | } else {
10925 | uint32_t cert_types_count;
10926 | /* ClientCertificateType certificate_types<1..2^8-1> */
10927 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &cert_types_count,
10928 | hf->hf.hs_cert_types_count, 1, UINT8_MAX(255))) {
10929 | return;
10930 | }
10931 | offset++;
10932 | next_offset = offset + cert_types_count;
10933 |
10934 | ti = proto_tree_add_none_format(tree,
10935 | hf->hf.hs_cert_types,
10936 | tvb, offset, cert_types_count,
10937 | "Certificate types (%u type%s)",
10938 | cert_types_count,
10939 | plurality(cert_types_count, "", "s")((cert_types_count) == 1 ? ("") : ("s")));
10940 | subtree = proto_item_add_subtree(ti, hf->ett.cert_types);
10941 |
10942 | while (offset < next_offset) {
10943 | proto_tree_add_item(subtree, hf->hf.hs_cert_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
10944 | offset++;
10945 | }
10946 | }
10947 |
10948 | if (session->version == TLSV1DOT2_VERSION0x303 || session->version == DTLSV1DOT2_VERSION0xfefd ||
10949 | (is_tls13 && (draft_version > 0 && draft_version < 19))) {
10950 | offset = ssl_dissect_hash_alg_list(hf, tvb, tree, pinfo, offset, offset_end, NULL((void*)0));
10951 | }
10952 |
10953 | if (is_tls13 && (draft_version == 0 || draft_version >= 19)) {
10954 | /*
10955 | * TLS 1.3 draft 19 and newer: Extensions.
10956 | * SslDecryptSession pointer is NULL because Certificate Extensions
10957 | * should not influence decryption state.
10958 | */
10959 | ssl_dissect_hnd_extension(hf, tvb, tree, pinfo, offset,
10960 | offset_end, SSL_HND_CERT_REQUEST,
10961 | session, NULL((void*)0), is_dtls, NULL((void*)0), NULL((void*)0), NULL((void*)0));
10962 | } else if (is_tls13 && draft_version <= 18) {
10963 | /*
10964 | * TLS 1.3 draft 18 and older: certificate_authorities and
10965 | * certificate_extensions (a vector of OID mappings).
10966 | */
10967 | offset = tls_dissect_certificate_authorities(hf, tvb, pinfo, tree, offset, offset_end);
10968 | ssl_dissect_hnd_hello_ext_oid_filters(hf, tvb, pinfo, tree, offset, offset_end);
10969 | } else {
10970 | /* for TLS 1.2 and older, the certificate_authorities field. */
10971 | tls_dissect_certificate_authorities(hf, tvb, pinfo, tree, offset, offset_end);
10972 | }
10973 | }
10974 | /* Certificate and Certificate Request dissections. }}} */
10975 |
10976 | void
10977 | ssl_dissect_hnd_cli_cert_verify(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
10978 | proto_tree *tree, uint32_t offset, uint32_t offset_end, uint16_t version)
10979 | {
10980 | ssl_dissect_digitally_signed(hf, tvb, pinfo, tree, offset, offset_end, version,
10981 | hf->hf.hs_client_cert_vrfy_sig_len,
10982 | hf->hf.hs_client_cert_vrfy_sig);
10983 | }
10984 |
10985 | /* Finished dissection. {{{ */
10986 | void
10987 | ssl_dissect_hnd_finished(ssl_common_dissect_t *hf, tvbuff_t *tvb,
10988 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
10989 | const SslSession *session, ssl_hfs_t *ssl_hfs)
10990 | {
10991 | /* For SSLv3:
10992 | * struct {
10993 | * opaque md5_hash[16];
10994 | * opaque sha_hash[20];
10995 | * } Finished;
10996 | *
10997 | * For (D)TLS:
10998 | * struct {
10999 | * opaque verify_data[12];
11000 | * } Finished;
11001 | *
11002 | * For TLS 1.3:
11003 | * struct {
11004 | * opaque verify_data[Hash.length];
11005 | * }
11006 | */
11007 | if (!tree)
11008 | return;
11009 |
11010 | if (session->version == SSLV3_VERSION0x300) {
11011 | if (ssl_hfs != NULL((void*)0)) {
11012 | proto_tree_add_item(tree, ssl_hfs->hs_md5_hash,
11013 | tvb, offset, 16, ENC_NA0x00000000);
11014 | proto_tree_add_item(tree, ssl_hfs->hs_sha_hash,
11015 | tvb, offset + 16, 20, ENC_NA0x00000000);
11016 | }
11017 | } else {
11018 | /* Length should be 12 for TLS before 1.3, assume this is the case. */
11019 | proto_tree_add_item(tree, hf->hf.hs_finished,
11020 | tvb, offset, offset_end - offset, ENC_NA0x00000000);
11021 | }
11022 | } /* }}} */
11023 |
11024 | /* RFC 6066 Certificate URL handshake message dissection. {{{ */
11025 | void
11026 | ssl_dissect_hnd_cert_url(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, uint32_t offset)
11027 | {
11028 | uint16_t url_hash_len;
11029 |
11030 | /* enum {
11031 | * individual_certs(0), pkipath(1), (255)
11032 | * } CertChainType;
11033 | *
11034 | * struct {
11035 | * CertChainType type;
11036 | * URLAndHash url_and_hash_list<1..2^16-1>;
11037 | * } CertificateURL;
11038 | *
11039 | * struct {
11040 | * opaque url<1..2^16-1>;
11041 | * uint8 padding;
11042 | * opaque SHA1Hash[20];
11043 | * } URLAndHash;
11044 | */
11045 |
11046 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_type,
11047 | tvb, offset, 1, ENC_NA0x00000000);
11048 | offset++;
11049 |
11050 | url_hash_len = tvb_get_ntohs(tvb, offset);
11051 | proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_url_hash_list_len,
11052 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
11053 | offset += 2;
11054 | while (url_hash_len-- > 0) {
11055 | proto_item *urlhash_item;
11056 | proto_tree *urlhash_tree;
11057 | uint16_t url_len;
11058 |
11059 | urlhash_item = proto_tree_add_item(tree, hf->hf.hs_ext_cert_url_item,
11060 | tvb, offset, -1, ENC_NA0x00000000);
11061 | urlhash_tree = proto_item_add_subtree(urlhash_item, hf->ett.urlhash);
11062 |
11063 | url_len = tvb_get_ntohs(tvb, offset);
11064 | proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_url_len,
11065 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
11066 | offset += 2;
11067 |
11068 | proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_url,
11069 | tvb, offset, url_len, ENC_ASCII0x00000000|ENC_NA0x00000000);
11070 | offset += url_len;
11071 |
11072 | proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_padding,
11073 | tvb, offset, 1, ENC_NA0x00000000);
11074 | offset++;
11075 | /* Note: RFC 6066 says that padding must be 0x01 */
11076 |
11077 | proto_tree_add_item(urlhash_tree, hf->hf.hs_ext_cert_url_sha1,
11078 | tvb, offset, 20, ENC_NA0x00000000);
11079 | offset += 20;
11080 | }
11081 | } /* }}} */
11082 |
11083 | void
11084 | ssl_dissect_hnd_compress_certificate(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree,
11085 | uint32_t offset, uint32_t offset_end, packet_info *pinfo,
11086 | SslSession *session, SslDecryptSession *ssl,
11087 | bool_Bool is_from_server, bool_Bool is_dtls)
11088 | {
11089 | uint32_t algorithm, uncompressed_length;
11090 | uint32_t compressed_certificate_message_length;
11091 | tvbuff_t *uncompressed_tvb = NULL((void*)0);
11092 | proto_item *ti;
11093 | /*
11094 | * enum {
11095 | * zlib(1),
11096 | * brotli(2),
11097 | * zstd(3),
11098 | * (65535)
11099 | * } CertificateCompressionAlgorithm;
11100 | *
11101 | * struct {
11102 | * CertificateCompressionAlgorithm algorithm;
11103 | * uint24 uncompressed_length;
11104 | * opaque compressed_certificate_message<1..2^24-1>;
11105 | * } CompressedCertificate;
11106 | */
11107 |
11108 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_ext_compress_certificate_algorithm,
11109 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &algorithm);
11110 | offset += 2;
11111 |
11112 | proto_tree_add_item_ret_uint(tree, hf->hf.hs_ext_compress_certificate_uncompressed_length,
11113 | tvb, offset, 3, ENC_BIG_ENDIAN0x00000000, &uncompressed_length);
11114 | offset += 3;
11115 |
11116 | /* opaque compressed_certificate_message<1..2^24-1>; */
11117 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &compressed_certificate_message_length,
11118 | hf->hf.hs_ext_compress_certificate_compressed_certificate_message_length, 1, G_MAXUINT24((1U << 24) - 1))) {
11119 | return;
11120 | }
11121 | offset += 3;
11122 |
11123 | ti = proto_tree_add_item(tree, hf->hf.hs_ext_compress_certificate_compressed_certificate_message,
11124 | tvb, offset, compressed_certificate_message_length, ENC_NA0x00000000);
11125 |
11126 | /* Certificate decompression following algorithm */
11127 | switch (algorithm) {
11128 | case 1: /* zlib */
11129 | uncompressed_tvb = tvb_child_uncompress_zlib(tvb, tvb, offset, compressed_certificate_message_length);
11130 | break;
11131 | case 2: /* brotli */
11132 | uncompressed_tvb = tvb_child_uncompress_brotli(tvb, tvb, offset, compressed_certificate_message_length);
11133 | break;
11134 | case 3: /* zstd */
11135 | uncompressed_tvb = tvb_child_uncompress_zstd(tvb, tvb, offset, compressed_certificate_message_length);
11136 | break;
11137 | }
11138 |
11139 | if (uncompressed_tvb) {
11140 | proto_tree *uncompressed_tree;
11141 |
11142 | if (uncompressed_length != tvb_captured_length(uncompressed_tvb)) {
11143 | proto_tree_add_expert_format(tree, pinfo, &hf->ei.decompression_error,
11144 | tvb, offset, offset_end - offset,
11145 | "Invalid uncompressed length %u (expected %u)",
11146 | tvb_captured_length(uncompressed_tvb),
11147 | uncompressed_length);
11148 | } else {
11149 | uncompressed_tree = proto_item_add_subtree(ti, hf->ett.uncompressed_certificates);
11150 | ssl_dissect_hnd_cert(hf, uncompressed_tvb, uncompressed_tree,
11151 | 0, uncompressed_length, pinfo, session, ssl, is_from_server, is_dtls);
11152 | add_new_data_source(pinfo, uncompressed_tvb, "Uncompressed certificate(s)");
11153 | }
11154 | }
11155 | }
11156 |
11157 | /* Dissection of TLS Extensions in Client Hello, Server Hello, etc. {{{ */
11158 | static int
11159 | // NOLINTNEXTLINE(misc-no-recursion)
11160 | ssl_dissect_hnd_extension(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree,
11161 | packet_info* pinfo, uint32_t offset, uint32_t offset_end, uint8_t hnd_type,
11162 | SslSession *session, SslDecryptSession *ssl,
11163 | bool_Bool is_dtls, wmem_strbuf_t *ja3, ja4_data_t *ja4_data,
11164 | ssl_master_key_map_t *mk_map)
11165 | {
11166 | uint32_t exts_len;
11167 | uint16_t ext_type;
11168 | uint32_t ext_len;
11169 | uint32_t next_offset;
11170 | proto_item *ext_item;
11171 | proto_tree *ext_tree;
11172 | bool_Bool is_tls13 = session->version == TLSV1DOT3_VERSION0x304;
11173 | wmem_strbuf_t *ja3_sg = wmem_strbuf_new(pinfo->pool, "");
11174 | wmem_strbuf_t *ja3_ecpf = wmem_strbuf_new(pinfo->pool, "");
11175 | char *ja3_dash = "";
11176 | unsigned supported_version;
11177 |
11178 | /* Extension extensions<0..2^16-2> (for TLS 1.3 HRR/CR min-length is 2) */
11179 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &exts_len,
11180 | hf->hf.hs_exts_len, 0, UINT16_MAX(65535))) {
11181 | return offset_end;
11182 | }
11183 | offset += 2;
11184 | offset_end = offset + exts_len;
11185 |
11186 | if (ja4_data) {
11187 | ja4_data->num_extensions = 0;
11188 | }
11189 | while (offset_end - offset >= 4)
11190 | {
11191 | ext_type = tvb_get_ntohs(tvb, offset);
11192 | ext_len = tvb_get_ntohs(tvb, offset + 2);
11193 |
11194 | if (ja4_data && !IS_GREASE_TLS(ext_type)((((ext_type) & 0x0f0f) == 0x0a0a) && (((ext_type ) & 0xff) == (((ext_type)>>8) & 0xff)))) {
11195 | ja4_data->num_extensions += 1;
11196 | if (ext_type != SSL_HND_HELLO_EXT_SERVER_NAME0 &&
11197 | ext_type != SSL_HND_HELLO_EXT_ALPN16) {
11198 | wmem_list_insert_sorted(ja4_data->extension_list, GUINT_TO_POINTER(ext_type)((gpointer) (gulong) (ext_type)), wmem_compare_uint);
11199 | }
11200 | }
11201 |
11202 | ext_item = proto_tree_add_none_format(tree, hf->hf.hs_ext, tvb, offset, 4 + ext_len,
11203 | "Extension: %s (len=%u)", val_to_str(pinfo->pool, ext_type,
11204 | tls_hello_extension_types,
11205 | "Unknown type %u"), ext_len);
11206 | ext_tree = proto_item_add_subtree(ext_item, hf->ett.hs_ext);
11207 |
11208 | proto_tree_add_uint(ext_tree, hf->hf.hs_ext_type,
11209 | tvb, offset, 2, ext_type);
11210 | offset += 2;
11211 | if (ja3 && !IS_GREASE_TLS(ext_type)((((ext_type) & 0x0f0f) == 0x0a0a) && (((ext_type ) & 0xff) == (((ext_type)>>8) & 0xff)))) {
11212 | wmem_strbuf_append_printf(ja3, "%s%i",ja3_dash, ext_type);
11213 | ja3_dash = "-";
11214 | }
11215 |
11216 | /* opaque extension_data<0..2^16-1> */
11217 | if (!ssl_add_vector(hf, tvb, pinfo, ext_tree, offset, offset_end, &ext_len,
11218 | hf->hf.hs_ext_len, 0, UINT16_MAX(65535))) {
11219 | return offset_end;
11220 | }
11221 | offset += 2;
11222 | next_offset = offset + ext_len;
11223 |
11224 | switch (ext_type) {
11225 | case SSL_HND_HELLO_EXT_SERVER_NAME0:
11226 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11227 | offset = ssl_dissect_hnd_hello_ext_server_name(hf, tvb, pinfo, ext_tree, offset, next_offset);
11228 | if (ja4_data) {
11229 | ja4_data->server_name_present = true1;
11230 | }
11231 | }
11232 | break;
11233 | case SSL_HND_HELLO_EXT_MAX_FRAGMENT_LENGTH1:
11234 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_max_fragment_length, tvb, offset, 1, ENC_NA0x00000000);
11235 | offset += 1;
11236 | break;
11237 | case SSL_HND_HELLO_EXT_STATUS_REQUEST5:
11238 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11239 | offset = ssl_dissect_hnd_hello_ext_status_request(hf, tvb, pinfo, ext_tree, offset, next_offset, false0);
11240 | } else if (is_tls13 && hnd_type == SSL_HND_CERTIFICATE) {
11241 | offset = tls_dissect_hnd_certificate_status(hf, tvb, pinfo, ext_tree, offset, next_offset);
11242 | }
11243 | break;
11244 | case SSL_HND_HELLO_EXT_CERT_TYPE9:
11245 | offset = ssl_dissect_hnd_hello_ext_cert_type(hf, tvb, ext_tree,
11246 | offset, next_offset,
11247 | hnd_type, ext_type,
11248 | session);
11249 | break;
11250 | case SSL_HND_HELLO_EXT_SUPPORTED_GROUPS10:
11251 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11252 | offset = ssl_dissect_hnd_hello_ext_supported_groups(hf, tvb, pinfo, ext_tree, offset,
11253 | next_offset, ja3_sg);
11254 | } else {
11255 | offset = ssl_dissect_hnd_hello_ext_supported_groups(hf, tvb, pinfo, ext_tree, offset,
11256 | next_offset, NULL((void*)0));
11257 | }
11258 | break;
11259 | case SSL_HND_HELLO_EXT_EC_POINT_FORMATS11:
11260 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11261 | offset = ssl_dissect_hnd_hello_ext_ec_point_formats(hf, tvb, ext_tree, offset, ja3_ecpf);
11262 | } else {
11263 | offset = ssl_dissect_hnd_hello_ext_ec_point_formats(hf, tvb, ext_tree, offset, NULL((void*)0));
11264 | }
11265 | break;
11266 | case SSL_HND_HELLO_EXT_SRP12:
11267 | offset = ssl_dissect_hnd_hello_ext_srp(hf, tvb, pinfo, ext_tree, offset, next_offset);
11268 | break;
11269 | case SSL_HND_HELLO_EXT_SIGNATURE_ALGORITHMS13:
11270 | offset = ssl_dissect_hnd_hello_ext_sig_hash_algs(hf, tvb, ext_tree, pinfo, offset, next_offset, ja4_data);
11271 | break;
11272 | case SSL_HND_HELLO_EXT_SIGNATURE_ALGORITHMS_CERT50: /* since TLS 1.3 draft -23 */
11273 | offset = ssl_dissect_hnd_hello_ext_sig_hash_algs(hf, tvb, ext_tree, pinfo, offset, next_offset, NULL((void*)0));
11274 | break;
11275 | case SSL_HND_HELLO_EXT_DELEGATED_CREDENTIALS34:
11276 | offset = ssl_dissect_hnd_ext_delegated_credentials(hf, tvb, ext_tree, pinfo, offset, next_offset, hnd_type);
11277 | break;
11278 | case SSL_HND_HELLO_EXT_USE_SRTP14:
11279 | if (is_dtls) {
11280 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11281 | offset = dtls_dissect_hnd_hello_ext_use_srtp(pinfo, tvb, ext_tree, offset, next_offset, false0);
11282 | } else if (hnd_type == SSL_HND_SERVER_HELLO) {
11283 | offset = dtls_dissect_hnd_hello_ext_use_srtp(pinfo, tvb, ext_tree, offset, next_offset, true1);
11284 | }
11285 | } else {
11286 | // XXX expert info: This extension MUST only be used with DTLS, and not with TLS.
11287 | }
11288 | break;
11289 | case SSL_HND_HELLO_EXT_ECH_OUTER_EXTENSIONS64768:
11290 | offset = ssl_dissect_hnd_ech_outer_ext(hf, tvb, pinfo, ext_tree, offset, next_offset);
11291 | break;
11292 | case SSL_HND_HELLO_EXT_ENCRYPTED_CLIENT_HELLO65037:
11293 | offset = ssl_dissect_hnd_hello_ext_ech(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, session, ssl, mk_map);
11294 | break;
11295 | case SSL_HND_HELLO_EXT_HEARTBEAT15:
11296 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_heartbeat_mode,
11297 | tvb, offset, 1, ENC_BIG_ENDIAN0x00000000);
11298 | offset++;
11299 | break;
11300 | case SSL_HND_HELLO_EXT_ALPN16:
11301 | offset = ssl_dissect_hnd_hello_ext_alpn(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, session, is_dtls, ja4_data);
11302 | break;
11303 | case SSL_HND_HELLO_EXT_STATUS_REQUEST_V217:
11304 | if (hnd_type == SSL_HND_CLIENT_HELLO)
11305 | offset = ssl_dissect_hnd_hello_ext_status_request_v2(hf, tvb, pinfo, ext_tree, offset, next_offset);
11306 | break;
11307 | case SSL_HND_HELLO_EXT_SIGNED_CERTIFICATE_TIMESTAMP18:
11308 | // TLS 1.3 note: SCT only appears in EE in draft -16 and before.
11309 | if (hnd_type == SSL_HND_SERVER_HELLO || hnd_type == SSL_HND_ENCRYPTED_EXTENSIONS || hnd_type == SSL_HND_CERTIFICATE)
11310 | offset = tls_dissect_sct_list(hf, tvb, pinfo, ext_tree, offset, next_offset, session->version);
11311 | break;
11312 | case SSL_HND_HELLO_EXT_CLIENT_CERT_TYPE19:
11313 | case SSL_HND_HELLO_EXT_SERVER_CERT_TYPE20:
11314 | offset = ssl_dissect_hnd_hello_ext_cert_type(hf, tvb, ext_tree,
11315 | offset, next_offset,
11316 | hnd_type, ext_type,
11317 | session);
11318 | break;
11319 | case SSL_HND_HELLO_EXT_PADDING21:
11320 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_padding_data, tvb, offset, ext_len, ENC_NA0x00000000);
11321 | offset += ext_len;
11322 | break;
11323 | case SSL_HND_HELLO_EXT_ENCRYPT_THEN_MAC22:
11324 | if (ssl && hnd_type == SSL_HND_SERVER_HELLO) {
11325 | ssl_debug_printf("%s enabling Encrypt-then-MAC\n", G_STRFUNC((const char*) (__func__)));
11326 | ssl->state |= SSL_ENCRYPT_THEN_MAC(1<<11);
11327 | }
11328 | break;
11329 | case SSL_HND_HELLO_EXT_EXTENDED_MASTER_SECRET23:
11330 | if (ssl) {
11331 | switch (hnd_type) {
11332 | case SSL_HND_CLIENT_HELLO:
11333 | ssl->state |= SSL_CLIENT_EXTENDED_MASTER_SECRET(1<<7);
11334 | break;
11335 | case SSL_HND_SERVER_HELLO:
11336 | ssl->state |= SSL_SERVER_EXTENDED_MASTER_SECRET(1<<8);
11337 | break;
11338 | default: /* no default */
11339 | break;
11340 | }
11341 | }
11342 | break;
11343 | case SSL_HND_HELLO_EXT_COMPRESS_CERTIFICATE27:
11344 | offset = ssl_dissect_hnd_hello_ext_compress_certificate(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11345 | break;
11346 | case SSL_HND_HELLO_EXT_TOKEN_BINDING24:
11347 | offset = ssl_dissect_hnd_hello_ext_token_binding(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11348 | break;
11349 | case SSL_HND_HELLO_EXT_RECORD_SIZE_LIMIT28:
11350 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_record_size_limit,
11351 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
11352 | offset += 2;
11353 | break;
11354 | case SSL_HND_HELLO_EXT_QUIC_TRANSPORT_PARAMETERS65445:
11355 | case SSL_HND_HELLO_EXT_QUIC_TRANSPORT_PARAMETERS_V157:
11356 | offset = ssl_dissect_hnd_hello_ext_quic_transport_parameters(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11357 | break;
11358 | case SSL_HND_HELLO_EXT_SESSION_TICKET_TLS35:
11359 | offset = ssl_dissect_hnd_hello_ext_session_ticket(hf, tvb, ext_tree, offset, next_offset, hnd_type, ssl);
11360 | break;
11361 | case SSL_HND_HELLO_EXT_KEY_SHARE_OLD40: /* used before TLS 1.3 draft -23 */
11362 | case SSL_HND_HELLO_EXT_KEY_SHARE51:
11363 | offset = ssl_dissect_hnd_hello_ext_key_share(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11364 | break;
11365 | case SSL_HND_HELLO_EXT_PRE_SHARED_KEY41:
11366 | offset = ssl_dissect_hnd_hello_ext_pre_shared_key(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11367 | break;
11368 | case SSL_HND_HELLO_EXT_EARLY_DATA42:
11369 | case SSL_HND_HELLO_EXT_TICKET_EARLY_DATA_INFO46:
11370 | offset = ssl_dissect_hnd_hello_ext_early_data(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11371 | break;
11372 | case SSL_HND_HELLO_EXT_SUPPORTED_VERSIONS43:
11373 | switch (hnd_type) {
11374 | case SSL_HND_CLIENT_HELLO:
11375 | offset = ssl_dissect_hnd_hello_ext_supported_versions(hf, tvb, pinfo, ext_tree, offset, next_offset, session, is_dtls, ja4_data);
11376 | break;
11377 | case SSL_HND_SERVER_HELLO:
11378 | case SSL_HND_HELLO_RETRY_REQUEST:
11379 | proto_tree_add_item_ret_uint(ext_tree, hf->hf.hs_ext_supported_version, tvb, offset, 2, ENC_BIG_ENDIAN0x00000000, &supported_version);
11380 | offset += 2;
11381 | proto_item_append_text(ext_tree, " %s", val_to_str(pinfo->pool, supported_version, ssl_versions, "Unknown (0x%04x)"));
11382 | break;
11383 | }
11384 | break;
11385 | case SSL_HND_HELLO_EXT_COOKIE44:
11386 | offset = ssl_dissect_hnd_hello_ext_cookie(hf, tvb, pinfo, ext_tree, offset, next_offset);
11387 | break;
11388 | case SSL_HND_HELLO_EXT_PSK_KEY_EXCHANGE_MODES45:
11389 | offset = ssl_dissect_hnd_hello_ext_psk_key_exchange_modes(hf, tvb, pinfo, ext_tree, offset, next_offset);
11390 | break;
11391 | case SSL_HND_HELLO_EXT_CERTIFICATE_AUTHORITIES47:
11392 | offset = ssl_dissect_hnd_hello_ext_certificate_authorities(hf, tvb, pinfo, ext_tree, offset, next_offset);
11393 | break;
11394 | case SSL_HND_HELLO_EXT_OID_FILTERS48:
11395 | offset = ssl_dissect_hnd_hello_ext_oid_filters(hf, tvb, pinfo, ext_tree, offset, next_offset);
11396 | break;
11397 | case SSL_HND_HELLO_EXT_POST_HANDSHAKE_AUTH49:
11398 | break;
11399 | case SSL_HND_HELLO_EXT_NPN13172:
11400 | offset = ssl_dissect_hnd_hello_ext_npn(hf, tvb, pinfo, ext_tree, offset, next_offset);
11401 | break;
11402 | case SSL_HND_HELLO_EXT_ALPS_OLD17513:
11403 | offset = ssl_dissect_hnd_hello_ext_alps(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type);
11404 | break;
11405 | case SSL_HND_HELLO_EXT_ALPS17613:
11406 | offset = ssl_dissect_hnd_hello_ext_alps(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type);
11407 | break;
11408 | case SSL_HND_HELLO_EXT_RENEGOTIATION_INFO65281:
11409 | offset = ssl_dissect_hnd_hello_ext_reneg_info(hf, tvb, pinfo, ext_tree, offset, next_offset);
11410 | break;
11411 | case SSL_HND_HELLO_EXT_ENCRYPTED_SERVER_NAME65486:
11412 | offset = ssl_dissect_hnd_hello_ext_esni(hf, tvb, pinfo, ext_tree, offset, next_offset, hnd_type, ssl);
11413 | break;
11414 | case SSL_HND_HELLO_EXT_CONNECTION_ID_DEPRECATED53:
11415 | session->deprecated_cid = true1;
11416 | /* FALLTHRU */
11417 | case SSL_HND_HELLO_EXT_CONNECTION_ID54:
11418 | offset = ssl_dissect_hnd_hello_ext_connection_id(hf, tvb, pinfo, ext_tree, offset, hnd_type, session, ssl);
11419 | break;
11420 | case SSL_HND_HELLO_EXT_TRUSTED_CA_KEYS3:
11421 | offset = ssl_dissect_hnd_hello_ext_trusted_ca_keys(hf, tvb, pinfo, ext_tree, offset, next_offset);
11422 | break;
11423 | default:
11424 | proto_tree_add_item(ext_tree, hf->hf.hs_ext_data,
11425 | tvb, offset, ext_len, ENC_NA0x00000000);
11426 | offset += ext_len;
11427 | break;
11428 | }
11429 |
11430 | if (!ssl_end_vector(hf, tvb, pinfo, ext_tree, offset, next_offset)) {
11431 | /* Dissection did not end at expected location, fix it. */
11432 | offset = next_offset;
11433 | }
11434 | }
11435 |
11436 | if (ja3) {
11437 | if (hnd_type == SSL_HND_CLIENT_HELLO) {
11438 | if(wmem_strbuf_get_len(ja3_sg) > 0) {
11439 | wmem_strbuf_append_printf(ja3, "%s", wmem_strbuf_get_str(ja3_sg));
11440 | } else {
11441 | wmem_strbuf_append_c(ja3, ',');
11442 | }
11443 | if(wmem_strbuf_get_len(ja3_ecpf) > 0) {
11444 | wmem_strbuf_append_printf(ja3, "%s", wmem_strbuf_get_str(ja3_ecpf));
11445 | } else {
11446 | wmem_strbuf_append_c(ja3, ',');
11447 | }
11448 | }
11449 | }
11450 |
11451 | /* Check if Extensions vector is correctly terminated. */
11452 | if (!ssl_end_vector(hf, tvb, pinfo, tree, offset, offset_end)) {
11453 | offset = offset_end;
11454 | }
11455 |
11456 | return offset;
11457 | } /* }}} */
11458 |
11459 |
11460 | /* ClientKeyExchange algo-specific dissectors. {{{ */
11461 |
11462 | static void
11463 | dissect_ssl3_hnd_cli_keyex_ecdh(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11464 | proto_tree *tree, uint32_t offset,
11465 | uint32_t length)
11466 | {
11467 | int point_len;
11468 | proto_tree *ssl_ecdh_tree;
11469 |
11470 | ssl_ecdh_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11471 | hf->ett.keyex_params, NULL((void*)0), "EC Diffie-Hellman Client Params");
11472 |
11473 | /* point */
11474 | point_len = tvb_get_uint8(tvb, offset);
11475 | proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_client_keyex_point_len, tvb,
11476 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11477 | proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_client_keyex_point, tvb,
11478 | offset + 1, point_len, ENC_NA0x00000000);
11479 | }
11480 |
11481 | static void
11482 | dissect_ssl3_hnd_cli_keyex_dhe(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11483 | proto_tree *tree, uint32_t offset, uint32_t length)
11484 | {
11485 | int yc_len;
11486 | proto_tree *ssl_dh_tree;
11487 |
11488 | ssl_dh_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11489 | hf->ett.keyex_params, NULL((void*)0), "Diffie-Hellman Client Params");
11490 |
11491 | /* ClientDiffieHellmanPublic.dh_public (explicit) */
11492 | yc_len = tvb_get_ntohs(tvb, offset);
11493 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_client_keyex_yc_len, tvb,
11494 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11495 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_client_keyex_yc, tvb,
11496 | offset + 2, yc_len, ENC_NA0x00000000);
11497 | }
11498 |
11499 | static void
11500 | dissect_ssl3_hnd_cli_keyex_rsa(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11501 | proto_tree *tree, uint32_t offset,
11502 | uint32_t length, const SslSession *session)
11503 | {
11504 | int epms_len;
11505 | proto_tree *ssl_rsa_tree;
11506 |
11507 | ssl_rsa_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11508 | hf->ett.keyex_params, NULL((void*)0), "RSA Encrypted PreMaster Secret");
11509 |
11510 | /* EncryptedPreMasterSecret.pre_master_secret */
11511 | switch (session->version) {
11512 | case SSLV2_VERSION0x0002:
11513 | case SSLV3_VERSION0x300:
11514 | case DTLSV1DOT0_OPENSSL_VERSION0x100:
11515 | /* OpenSSL pre-0.9.8f DTLS and pre-TLS quirk: 2-octet length vector is
11516 | * not present. The handshake contents represents the EPMS, see:
11517 | * https://gitlab.com/wireshark/wireshark/-/issues/10222 */
11518 | epms_len = length;
11519 | break;
11520 |
11521 | default:
11522 | /* TLS and DTLS include vector length before EPMS */
11523 | epms_len = tvb_get_ntohs(tvb, offset);
11524 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_client_keyex_epms_len, tvb,
11525 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11526 | offset += 2;
11527 | break;
11528 | }
11529 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_client_keyex_epms, tvb,
11530 | offset, epms_len, ENC_NA0x00000000);
11531 | }
11532 |
11533 | /* Used in PSK cipher suites */
11534 | static uint32_t
11535 | dissect_ssl3_hnd_cli_keyex_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11536 | proto_tree *tree, uint32_t offset)
11537 | {
11538 | unsigned identity_len;
11539 | proto_tree *ssl_psk_tree;
11540 |
11541 | ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, -1,
11542 | hf->ett.keyex_params, NULL((void*)0), "PSK Client Params");
11543 | /* identity */
11544 | identity_len = tvb_get_ntohs(tvb, offset);
11545 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity_len, tvb,
11546 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11547 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity, tvb,
11548 | offset + 2, identity_len, ENC_NA0x00000000);
11549 |
11550 | proto_item_set_len(ssl_psk_tree, 2 + identity_len);
11551 | return 2 + identity_len;
11552 | }
11553 |
11554 | /* Used in RSA PSK cipher suites */
11555 | static void
11556 | dissect_ssl3_hnd_cli_keyex_rsa_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11557 | proto_tree *tree, uint32_t offset,
11558 | uint32_t length)
11559 | {
11560 | int identity_len, epms_len;
11561 | proto_tree *ssl_psk_tree;
11562 |
11563 | ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11564 | hf->ett.keyex_params, NULL((void*)0), "RSA PSK Client Params");
11565 |
11566 | /* identity */
11567 | identity_len = tvb_get_ntohs(tvb, offset);
11568 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity_len,
11569 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
11570 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_identity,
11571 | tvb, offset + 2, identity_len, ENC_NA0x00000000);
11572 | offset += 2 + identity_len;
11573 |
11574 | /* Yc */
11575 | epms_len = tvb_get_ntohs(tvb, offset);
11576 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_epms_len, tvb,
11577 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11578 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_client_keyex_epms, tvb,
11579 | offset + 2, epms_len, ENC_NA0x00000000);
11580 | }
11581 |
11582 | /* Used in Diffie-Hellman PSK cipher suites */
11583 | static void
11584 | dissect_ssl3_hnd_cli_keyex_dhe_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11585 | proto_tree *tree, uint32_t offset, uint32_t length)
11586 | {
11587 | /*
11588 | * struct {
11589 | * select (KeyExchangeAlgorithm) {
11590 | * case diffie_hellman_psk:
11591 | * opaque psk_identity<0..2^16-1>;
11592 | * ClientDiffieHellmanPublic public;
11593 | * } exchange_keys;
11594 | * } ClientKeyExchange;
11595 | */
11596 |
11597 | uint32_t psk_len = dissect_ssl3_hnd_cli_keyex_psk(hf, tvb, tree, offset);
11598 | dissect_ssl3_hnd_cli_keyex_dhe(hf, tvb, tree, offset + psk_len, length - psk_len);
11599 | }
11600 |
11601 | /* Used in EC Diffie-Hellman PSK cipher suites */
11602 | static void
11603 | dissect_ssl3_hnd_cli_keyex_ecdh_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11604 | proto_tree *tree, uint32_t offset, uint32_t length)
11605 | {
11606 | /*
11607 | * struct {
11608 | * select (KeyExchangeAlgorithm) {
11609 | * case ec_diffie_hellman_psk:
11610 | * opaque psk_identity<0..2^16-1>;
11611 | * ClientECDiffieHellmanPublic public;
11612 | * } exchange_keys;
11613 | * } ClientKeyExchange;
11614 | */
11615 |
11616 | uint32_t psk_len = dissect_ssl3_hnd_cli_keyex_psk(hf, tvb, tree, offset);
11617 | dissect_ssl3_hnd_cli_keyex_ecdh(hf, tvb, tree, offset + psk_len, length - psk_len);
11618 | }
11619 |
11620 | /* Used in EC J-PAKE cipher suites */
11621 | static void
11622 | dissect_ssl3_hnd_cli_keyex_ecjpake(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11623 | proto_tree *tree, uint32_t offset,
11624 | uint32_t length)
11625 | {
11626 | /*
11627 | * struct {
11628 | * ECPoint V;
11629 | * opaque r<1..2^8-1>;
11630 | * } ECSchnorrZKP;
11631 | *
11632 | * struct {
11633 | * ECPoint X;
11634 | * ECSchnorrZKP zkp;
11635 | * } ECJPAKEKeyKP;
11636 | *
11637 | * struct {
11638 | * ECJPAKEKeyKP ecjpake_key_kp;
11639 | * } ClientECJPAKEParams;
11640 | *
11641 | * select (KeyExchangeAlgorithm) {
11642 | * case ecjpake:
11643 | * ClientECJPAKEParams params;
11644 | * } ClientKeyExchange;
11645 | */
11646 |
11647 | int point_len;
11648 | proto_tree *ssl_ecjpake_tree;
11649 |
11650 | ssl_ecjpake_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11651 | hf->ett.keyex_params, NULL((void*)0),
11652 | "EC J-PAKE Client Params");
11653 |
11654 | /* ECJPAKEKeyKP.X */
11655 | point_len = tvb_get_uint8(tvb, offset);
11656 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_xc_len, tvb,
11657 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11658 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_xc, tvb,
11659 | offset + 1, point_len, ENC_NA0x00000000);
11660 | offset += 1 + point_len;
11661 |
11662 | /* ECJPAKEKeyKP.zkp.V */
11663 | point_len = tvb_get_uint8(tvb, offset);
11664 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_vc_len, tvb,
11665 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11666 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_vc, tvb,
11667 | offset + 1, point_len, ENC_NA0x00000000);
11668 | offset += 1 + point_len;
11669 |
11670 | /* ECJPAKEKeyKP.zkp.r */
11671 | point_len = tvb_get_uint8(tvb, offset);
11672 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_rc_len, tvb,
11673 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11674 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_client_keyex_rc, tvb,
11675 | offset + 1, point_len, ENC_NA0x00000000);
11676 | }
11677 |
11678 | static void
11679 | dissect_ssl3_hnd_cli_keyex_ecc_sm2(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11680 | proto_tree *tree, uint32_t offset,
11681 | uint32_t length)
11682 | {
11683 | int epms_len;
11684 | proto_tree *ssl_ecc_sm2_tree;
11685 |
11686 | ssl_ecc_sm2_tree = proto_tree_add_subtree(tree, tvb, offset, length,
11687 | hf->ett.keyex_params, NULL((void*)0),
11688 | "ECC-SM2 Encrypted PreMaster Secret");
11689 |
11690 | epms_len = tvb_get_ntohs(tvb, offset);
11691 | proto_tree_add_item(ssl_ecc_sm2_tree, hf->hf.hs_client_keyex_epms_len, tvb,
11692 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11693 | offset += 2;
11694 | proto_tree_add_item(ssl_ecc_sm2_tree, hf->hf.hs_client_keyex_epms, tvb,
11695 | offset, epms_len, ENC_NA0x00000000);
11696 | }
11697 | /* ClientKeyExchange algo-specific dissectors. }}} */
11698 |
11699 |
11700 | /* Dissects DigitallySigned (see RFC 5246 4.7 Cryptographic Attributes). {{{ */
11701 | static uint32_t
11702 | ssl_dissect_digitally_signed(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11703 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
11704 | uint16_t version, int hf_sig_len, int hf_sig)
11705 | {
11706 | uint32_t sig_len;
11707 |
11708 | switch (version) {
11709 | case TLSV1DOT2_VERSION0x303:
11710 | case DTLSV1DOT2_VERSION0xfefd:
11711 | case TLSV1DOT3_VERSION0x304:
11712 | case DTLSV1DOT3_VERSION0xfefc:
11713 | tls_dissect_signature_algorithm(hf, tvb, tree, offset, NULL((void*)0));
11714 | offset += 2;
11715 | break;
11716 |
11717 | default:
11718 | break;
11719 | }
11720 |
11721 | /* Sig */
11722 | if (!ssl_add_vector(hf, tvb, pinfo, tree, offset, offset_end, &sig_len,
11723 | hf_sig_len, 0, UINT16_MAX(65535))) {
11724 | return offset_end;
11725 | }
11726 | offset += 2;
11727 | proto_tree_add_item(tree, hf_sig, tvb, offset, sig_len, ENC_NA0x00000000);
11728 | offset += sig_len;
11729 | return offset;
11730 | } /* }}} */
11731 |
11732 | /* ServerKeyExchange algo-specific dissectors. {{{ */
11733 |
11734 | /* dissects signed_params inside a ServerKeyExchange for some keyex algos */
11735 | static void
11736 | dissect_ssl3_hnd_srv_keyex_sig(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11737 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
11738 | uint16_t version)
11739 | {
11740 | /*
11741 | * TLSv1.2 (RFC 5246 sec 7.4.8)
11742 | * struct {
11743 | * digitally-signed struct {
11744 | * opaque handshake_messages[handshake_messages_length];
11745 | * }
11746 | * } CertificateVerify;
11747 | *
11748 | * TLSv1.0/TLSv1.1 (RFC 5436 sec 7.4.8 and 7.4.3) works essentially the same
11749 | * as TLSv1.2, but the hash algorithms are not explicit in digitally-signed.
11750 | *
11751 | * SSLv3 (RFC 6101 sec 5.6.8) essentially works the same as TLSv1.0 but it
11752 | * does more hashing including the master secret and padding.
11753 | */
11754 | ssl_dissect_digitally_signed(hf, tvb, pinfo, tree, offset, offset_end, version,
11755 | hf->hf.hs_server_keyex_sig_len,
11756 | hf->hf.hs_server_keyex_sig);
11757 | }
11758 |
11759 | static uint32_t
11760 | dissect_tls_ecparameters(ssl_common_dissect_t *hf, tvbuff_t *tvb, proto_tree *tree, uint32_t offset, uint32_t offset_end)
11761 | {
11762 | /*
11763 | * RFC 4492 ECC cipher suites for TLS
11764 | *
11765 | * struct {
11766 | * ECCurveType curve_type;
11767 | * select (curve_type) {
11768 | * case explicit_prime:
11769 | * ...
11770 | * case explicit_char2:
11771 | * ...
11772 | * case named_curve:
11773 | * NamedCurve namedcurve;
11774 | * };
11775 | * } ECParameters;
11776 | */
11777 |
11778 | int curve_type;
11779 |
11780 | /* ECParameters.curve_type */
11781 | curve_type = tvb_get_uint8(tvb, offset);
11782 | proto_tree_add_item(tree, hf->hf.hs_server_keyex_curve_type, tvb,
11783 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11784 | offset++;
11785 |
11786 | if (curve_type != 3)
11787 | return offset_end; /* only named_curves are supported */
11788 |
11789 | /* case curve_type == named_curve; ECParameters.namedcurve */
11790 | proto_tree_add_item(tree, hf->hf.hs_server_keyex_named_curve, tvb,
11791 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11792 | offset += 2;
11793 |
11794 | return offset;
11795 | }
11796 |
11797 | static void
11798 | dissect_ssl3_hnd_srv_keyex_ecdh(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11799 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
11800 | uint16_t version, bool_Bool anon)
11801 | {
11802 | /*
11803 | * RFC 4492 ECC cipher suites for TLS
11804 | *
11805 | * struct {
11806 | * opaque point <1..2^8-1>;
11807 | * } ECPoint;
11808 | *
11809 | * struct {
11810 | * ECParameters curve_params;
11811 | * ECPoint public;
11812 | * } ServerECDHParams;
11813 | *
11814 | * select (KeyExchangeAlgorithm) {
11815 | * case ec_diffie_hellman:
11816 | * ServerECDHParams params;
11817 | * Signature signed_params;
11818 | * } ServerKeyExchange;
11819 | */
11820 |
11821 | int point_len;
11822 | proto_tree *ssl_ecdh_tree;
11823 |
11824 | ssl_ecdh_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
11825 | hf->ett.keyex_params, NULL((void*)0), "EC Diffie-Hellman Server Params");
11826 |
11827 | offset = dissect_tls_ecparameters(hf, tvb, ssl_ecdh_tree, offset, offset_end);
11828 | if (offset >= offset_end)
11829 | return; /* only named_curves are supported */
11830 |
11831 | /* ECPoint.point */
11832 | point_len = tvb_get_uint8(tvb, offset);
11833 | proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_point_len, tvb,
11834 | offset, 1, ENC_BIG_ENDIAN0x00000000);
11835 | proto_tree_add_item(ssl_ecdh_tree, hf->hf.hs_server_keyex_point, tvb,
11836 | offset + 1, point_len, ENC_NA0x00000000);
11837 | offset += 1 + point_len;
11838 |
11839 | /* Signature (if non-anonymous KEX) */
11840 | if (!anon) {
11841 | dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, pinfo, ssl_ecdh_tree, offset, offset_end, version);
11842 | }
11843 | }
11844 |
11845 | static void
11846 | dissect_ssl3_hnd_srv_keyex_dhe(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11847 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
11848 | uint16_t version, bool_Bool anon)
11849 | {
11850 | int p_len, g_len, ys_len;
11851 | proto_tree *ssl_dh_tree;
11852 |
11853 | ssl_dh_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
11854 | hf->ett.keyex_params, NULL((void*)0), "Diffie-Hellman Server Params");
11855 |
11856 | /* p */
11857 | p_len = tvb_get_ntohs(tvb, offset);
11858 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_p_len, tvb,
11859 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11860 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_p, tvb,
11861 | offset + 2, p_len, ENC_NA0x00000000);
11862 | offset += 2 + p_len;
11863 |
11864 | /* g */
11865 | g_len = tvb_get_ntohs(tvb, offset);
11866 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_g_len, tvb,
11867 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11868 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_g, tvb,
11869 | offset + 2, g_len, ENC_NA0x00000000);
11870 | offset += 2 + g_len;
11871 |
11872 | /* Ys */
11873 | ys_len = tvb_get_ntohs(tvb, offset);
11874 | proto_tree_add_uint(ssl_dh_tree, hf->hf.hs_server_keyex_ys_len, tvb,
11875 | offset, 2, ys_len);
11876 | proto_tree_add_item(ssl_dh_tree, hf->hf.hs_server_keyex_ys, tvb,
11877 | offset + 2, ys_len, ENC_NA0x00000000);
11878 | offset += 2 + ys_len;
11879 |
11880 | /* Signature (if non-anonymous KEX) */
11881 | if (!anon) {
11882 | dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, pinfo, ssl_dh_tree, offset, offset_end, version);
11883 | }
11884 | }
11885 |
11886 | /* Only used in RSA-EXPORT cipher suites */
11887 | static void
11888 | dissect_ssl3_hnd_srv_keyex_rsa(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11889 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
11890 | uint16_t version)
11891 | {
11892 | int modulus_len, exponent_len;
11893 | proto_tree *ssl_rsa_tree;
11894 |
11895 | ssl_rsa_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
11896 | hf->ett.keyex_params, NULL((void*)0), "RSA-EXPORT Server Params");
11897 |
11898 | /* modulus */
11899 | modulus_len = tvb_get_ntohs(tvb, offset);
11900 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_modulus_len, tvb,
11901 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11902 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_modulus, tvb,
11903 | offset + 2, modulus_len, ENC_NA0x00000000);
11904 | offset += 2 + modulus_len;
11905 |
11906 | /* exponent */
11907 | exponent_len = tvb_get_ntohs(tvb, offset);
11908 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_exponent_len,
11909 | tvb, offset, 2, ENC_BIG_ENDIAN0x00000000);
11910 | proto_tree_add_item(ssl_rsa_tree, hf->hf.hs_server_keyex_exponent,
11911 | tvb, offset + 2, exponent_len, ENC_NA0x00000000);
11912 | offset += 2 + exponent_len;
11913 |
11914 | /* Signature */
11915 | dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, pinfo, ssl_rsa_tree, offset, offset_end, version);
11916 | }
11917 |
11918 | /* Used in RSA PSK and PSK cipher suites */
11919 | static uint32_t
11920 | dissect_ssl3_hnd_srv_keyex_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11921 | proto_tree *tree, uint32_t offset)
11922 | {
11923 | unsigned hint_len;
11924 | proto_tree *ssl_psk_tree;
11925 |
11926 | ssl_psk_tree = proto_tree_add_subtree(tree, tvb, offset, -1,
11927 | hf->ett.keyex_params, NULL((void*)0), "PSK Server Params");
11928 |
11929 | /* hint */
11930 | hint_len = tvb_get_ntohs(tvb, offset);
11931 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_server_keyex_hint_len, tvb,
11932 | offset, 2, ENC_BIG_ENDIAN0x00000000);
11933 | proto_tree_add_item(ssl_psk_tree, hf->hf.hs_server_keyex_hint, tvb,
11934 | offset + 2, hint_len, ENC_NA0x00000000);
11935 |
11936 | proto_item_set_len(ssl_psk_tree, 2 + hint_len);
11937 | return 2 + hint_len;
11938 | }
11939 |
11940 | /* Used in Diffie-Hellman PSK cipher suites */
11941 | static void
11942 | dissect_ssl3_hnd_srv_keyex_dhe_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11943 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
11944 | {
11945 | /*
11946 | * struct {
11947 | * select (KeyExchangeAlgorithm) {
11948 | * case diffie_hellman_psk:
11949 | * opaque psk_identity_hint<0..2^16-1>;
11950 | * ServerDHParams params;
11951 | * };
11952 | * } ServerKeyExchange;
11953 | */
11954 |
11955 | uint32_t psk_len = dissect_ssl3_hnd_srv_keyex_psk(hf, tvb, tree, offset);
11956 | dissect_ssl3_hnd_srv_keyex_dhe(hf, tvb, pinfo, tree, offset + psk_len, offset_end, 0, true1);
11957 | }
11958 |
11959 | /* Used in EC Diffie-Hellman PSK cipher suites */
11960 | static void
11961 | dissect_ssl3_hnd_srv_keyex_ecdh_psk(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
11962 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
11963 | {
11964 | /*
11965 | * struct {
11966 | * select (KeyExchangeAlgorithm) {
11967 | * case ec_diffie_hellman_psk:
11968 | * opaque psk_identity_hint<0..2^16-1>;
11969 | * ServerECDHParams params;
11970 | * };
11971 | * } ServerKeyExchange;
11972 | */
11973 |
11974 | uint32_t psk_len = dissect_ssl3_hnd_srv_keyex_psk(hf, tvb, tree, offset);
11975 | dissect_ssl3_hnd_srv_keyex_ecdh(hf, tvb, pinfo, tree, offset + psk_len, offset_end, 0, true1);
11976 | }
11977 |
11978 | /* Used in EC J-PAKE cipher suites */
11979 | static void
11980 | dissect_ssl3_hnd_srv_keyex_ecjpake(ssl_common_dissect_t *hf, tvbuff_t *tvb,
11981 | proto_tree *tree, uint32_t offset, uint32_t offset_end)
11982 | {
11983 | /*
11984 | * struct {
11985 | * ECPoint V;
11986 | * opaque r<1..2^8-1>;
11987 | * } ECSchnorrZKP;
11988 | *
11989 | * struct {
11990 | * ECPoint X;
11991 | * ECSchnorrZKP zkp;
11992 | * } ECJPAKEKeyKP;
11993 | *
11994 | * struct {
11995 | * ECParameters curve_params;
11996 | * ECJPAKEKeyKP ecjpake_key_kp;
11997 | * } ServerECJPAKEParams;
11998 | *
11999 | * select (KeyExchangeAlgorithm) {
12000 | * case ecjpake:
12001 | * ServerECJPAKEParams params;
12002 | * } ServerKeyExchange;
12003 | */
12004 |
12005 | int point_len;
12006 | proto_tree *ssl_ecjpake_tree;
12007 |
12008 | ssl_ecjpake_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
12009 | hf->ett.keyex_params, NULL((void*)0),
12010 | "EC J-PAKE Server Params");
12011 |
12012 | offset = dissect_tls_ecparameters(hf, tvb, ssl_ecjpake_tree, offset, offset_end);
12013 | if (offset >= offset_end)
12014 | return; /* only named_curves are supported */
12015 |
12016 | /* ECJPAKEKeyKP.X */
12017 | point_len = tvb_get_uint8(tvb, offset);
12018 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_xs_len, tvb,
12019 | offset, 1, ENC_BIG_ENDIAN0x00000000);
12020 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_xs, tvb,
12021 | offset + 1, point_len, ENC_NA0x00000000);
12022 | offset += 1 + point_len;
12023 |
12024 | /* ECJPAKEKeyKP.zkp.V */
12025 | point_len = tvb_get_uint8(tvb, offset);
12026 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_vs_len, tvb,
12027 | offset, 1, ENC_BIG_ENDIAN0x00000000);
12028 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_vs, tvb,
12029 | offset + 1, point_len, ENC_NA0x00000000);
12030 | offset += 1 + point_len;
12031 |
12032 | /* ECJPAKEKeyKP.zkp.r */
12033 | point_len = tvb_get_uint8(tvb, offset);
12034 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_rs_len, tvb,
12035 | offset, 1, ENC_BIG_ENDIAN0x00000000);
12036 | proto_tree_add_item(ssl_ecjpake_tree, hf->hf.hs_server_keyex_rs, tvb,
12037 | offset + 1, point_len, ENC_NA0x00000000);
12038 | }
12039 |
12040 | /* Only used in ECC-SM2-EXPORT cipher suites */
12041 | static void
12042 | dissect_ssl3_hnd_srv_keyex_ecc_sm2(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
12043 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
12044 | uint16_t version)
12045 | {
12046 | proto_tree *ssl_ecc_sm2_tree;
12047 |
12048 | ssl_ecc_sm2_tree = proto_tree_add_subtree(tree, tvb, offset, offset_end - offset,
12049 | hf->ett.keyex_params, NULL((void*)0), "ECC-SM2-EXPORT Server Params");
12050 |
12051 | /* Signature */
12052 | dissect_ssl3_hnd_srv_keyex_sig(hf, tvb, pinfo, ssl_ecc_sm2_tree, offset, offset_end, version);
12053 | }
12054 | /* ServerKeyExchange algo-specific dissectors. }}} */
12055 |
12056 | /* Client Key Exchange and Server Key Exchange handshake dissections. {{{ */
12057 | void
12058 | ssl_dissect_hnd_cli_keyex(ssl_common_dissect_t *hf, tvbuff_t *tvb,
12059 | proto_tree *tree, uint32_t offset, uint32_t length,
12060 | const SslSession *session)
12061 | {
12062 | switch (ssl_get_keyex_alg(session->cipher)) {
12063 | case KEX_DH_ANON0x13: /* RFC 5246; DHE_DSS, DHE_RSA, DH_DSS, DH_RSA, DH_ANON: ClientDiffieHellmanPublic */
12064 | case KEX_DH_DSS0x14:
12065 | case KEX_DH_RSA0x15:
12066 | case KEX_DHE_DSS0x10:
12067 | case KEX_DHE_RSA0x12:
12068 | dissect_ssl3_hnd_cli_keyex_dhe(hf, tvb, tree, offset, length);
12069 | break;
12070 | case KEX_DHE_PSK0x11: /* RFC 4279; diffie_hellman_psk: psk_identity, ClientDiffieHellmanPublic */
12071 | dissect_ssl3_hnd_cli_keyex_dhe_psk(hf, tvb, tree, offset, length);
12072 | break;
12073 | case KEX_ECDH_ANON0x19: /* RFC 4492; ec_diffie_hellman: ClientECDiffieHellmanPublic */
12074 | case KEX_ECDH_ECDSA0x1a:
12075 | case KEX_ECDH_RSA0x1b:
12076 | case KEX_ECDHE_ECDSA0x16:
12077 | case KEX_ECDHE_RSA0x18:
12078 | dissect_ssl3_hnd_cli_keyex_ecdh(hf, tvb, tree, offset, length);
12079 | break;
12080 | case KEX_ECDHE_PSK0x17: /* RFC 5489; ec_diffie_hellman_psk: psk_identity, ClientECDiffieHellmanPublic */
12081 | dissect_ssl3_hnd_cli_keyex_ecdh_psk(hf, tvb, tree, offset, length);
12082 | break;
12083 | case KEX_KRB50x1c: /* RFC 2712; krb5: KerberosWrapper */
12084 | /* XXX: implement support for KRB5 */
12085 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12086 | tvb, offset, length,
12087 | "Kerberos ciphersuites (RFC 2712) are not implemented, contact Wireshark"
12088 | " developers if you want them to be supported");
12089 | break;
12090 | case KEX_PSK0x1d: /* RFC 4279; psk: psk_identity */
12091 | dissect_ssl3_hnd_cli_keyex_psk(hf, tvb, tree, offset);
12092 | break;
12093 | case KEX_RSA0x1e: /* RFC 5246; rsa: EncryptedPreMasterSecret */
12094 | dissect_ssl3_hnd_cli_keyex_rsa(hf, tvb, tree, offset, length, session);
12095 | break;
12096 | case KEX_RSA_PSK0x1f: /* RFC 4279; rsa_psk: psk_identity, EncryptedPreMasterSecret */
12097 | dissect_ssl3_hnd_cli_keyex_rsa_psk(hf, tvb, tree, offset, length);
12098 | break;
12099 | case KEX_SRP_SHA0x20: /* RFC 5054; srp: ClientSRPPublic */
12100 | case KEX_SRP_SHA_DSS0x21:
12101 | case KEX_SRP_SHA_RSA0x22:
12102 | /* XXX: implement support for SRP_SHA* */
12103 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12104 | tvb, offset, length,
12105 | "SRP_SHA ciphersuites (RFC 5054) are not implemented, contact Wireshark"
12106 | " developers if you want them to be supported");
12107 | break;
12108 | case KEX_ECJPAKE0x24: /* https://tools.ietf.org/html/draft-cragie-tls-ecjpake-01 used in Thread Commissioning */
12109 | dissect_ssl3_hnd_cli_keyex_ecjpake(hf, tvb, tree, offset, length);
12110 | break;
12111 | case KEX_ECC_SM20x26: /* GB/T 38636 */
12112 | dissect_ssl3_hnd_cli_keyex_ecc_sm2(hf, tvb, tree, offset, length);
12113 | break;
12114 | default:
12115 | if (session->cipher == 0) {
12116 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12117 | tvb, offset, length,
12118 | "Cipher Suite not found");
12119 | } else {
12120 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12121 | tvb, offset, length,
12122 | "Cipher Suite 0x%04x is not implemented, "
12123 | "contact Wireshark developers if you want this to be supported",
12124 | session->cipher);
12125 | }
12126 | break;
12127 | }
12128 | }
12129 |
12130 | void
12131 | ssl_dissect_hnd_srv_keyex(ssl_common_dissect_t *hf, tvbuff_t *tvb, packet_info *pinfo,
12132 | proto_tree *tree, uint32_t offset, uint32_t offset_end,
12133 | const SslSession *session)
12134 | {
12135 | switch (ssl_get_keyex_alg(session->cipher)) {
12136 | case KEX_DH_ANON0x13: /* RFC 5246; ServerDHParams */
12137 | dissect_ssl3_hnd_srv_keyex_dhe(hf, tvb, pinfo, tree, offset, offset_end, session->version, true1);
12138 | break;
12139 | case KEX_DH_DSS0x14: /* RFC 5246; not allowed */
12140 | case KEX_DH_RSA0x15:
12141 | proto_tree_add_expert(tree, NULL((void*)0), &hf->ei.hs_srv_keyex_illegal,
12142 | tvb, offset, offset_end - offset);
12143 | break;
12144 | case KEX_DHE_DSS0x10: /* RFC 5246; dhe_dss, dhe_rsa: ServerDHParams, Signature */
12145 | case KEX_DHE_RSA0x12:
12146 | dissect_ssl3_hnd_srv_keyex_dhe(hf, tvb, pinfo, tree, offset, offset_end, session->version, false0);
12147 | break;
12148 | case KEX_DHE_PSK0x11: /* RFC 4279; diffie_hellman_psk: psk_identity_hint, ServerDHParams */
12149 | dissect_ssl3_hnd_srv_keyex_dhe_psk(hf, tvb, pinfo, tree, offset, offset_end);
12150 | break;
12151 | case KEX_ECDH_ANON0x19: /* RFC 4492; ec_diffie_hellman: ServerECDHParams (without signature for anon) */
12152 | dissect_ssl3_hnd_srv_keyex_ecdh(hf, tvb, pinfo, tree, offset, offset_end, session->version, true1);
12153 | break;
12154 | case KEX_ECDHE_PSK0x17: /* RFC 5489; psk_identity_hint, ServerECDHParams */
12155 | dissect_ssl3_hnd_srv_keyex_ecdh_psk(hf, tvb, pinfo, tree, offset, offset_end);
12156 | break;
12157 | case KEX_ECDH_ECDSA0x1a: /* RFC 4492; ec_diffie_hellman: ServerECDHParams, Signature */
12158 | case KEX_ECDH_RSA0x1b:
12159 | case KEX_ECDHE_ECDSA0x16:
12160 | case KEX_ECDHE_RSA0x18:
12161 | dissect_ssl3_hnd_srv_keyex_ecdh(hf, tvb, pinfo, tree, offset, offset_end, session->version, false0);
12162 | break;
12163 | case KEX_KRB50x1c: /* RFC 2712; not allowed */
12164 | proto_tree_add_expert(tree, NULL((void*)0), &hf->ei.hs_srv_keyex_illegal,
12165 | tvb, offset, offset_end - offset);
12166 | break;
12167 | case KEX_PSK0x1d: /* RFC 4279; psk, rsa: psk_identity */
12168 | case KEX_RSA_PSK0x1f:
12169 | dissect_ssl3_hnd_srv_keyex_psk(hf, tvb, tree, offset);
12170 | break;
12171 | case KEX_RSA0x1e: /* only allowed if the public key in the server certificate is longer than 512 bits */
12172 | dissect_ssl3_hnd_srv_keyex_rsa(hf, tvb, pinfo, tree, offset, offset_end, session->version);
12173 | break;
12174 | case KEX_ECC_SM20x26: /* GB/T 38636 */
12175 | dissect_ssl3_hnd_srv_keyex_ecc_sm2(hf, tvb, pinfo, tree, offset, offset_end, session->version);
12176 | break;
12177 | case KEX_SRP_SHA0x20: /* RFC 5054; srp: ServerSRPParams, Signature */
12178 | case KEX_SRP_SHA_DSS0x21:
12179 | case KEX_SRP_SHA_RSA0x22:
12180 | /* XXX: implement support for SRP_SHA* */
12181 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12182 | tvb, offset, offset_end - offset,
12183 | "SRP_SHA ciphersuites (RFC 5054) are not implemented, contact Wireshark"
12184 | " developers if you want them to be supported");
12185 | break;
12186 | case KEX_ECJPAKE0x24: /* https://tools.ietf.org/html/draft-cragie-tls-ecjpake-01 used in Thread Commissioning */
12187 | dissect_ssl3_hnd_srv_keyex_ecjpake(hf, tvb, tree, offset, offset_end);
12188 | break;
12189 | default:
12190 | if (session->cipher == 0) {
12191 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12192 | tvb, offset, offset_end - offset,
12193 | "Cipher Suite not found");
12194 | } else {
12195 | proto_tree_add_expert_format(tree, NULL((void*)0), &hf->ei.hs_ciphersuite_undecoded,
12196 | tvb, offset, offset_end - offset,
12197 | "Cipher Suite 0x%04x is not implemented, "
12198 | "contact Wireshark developers if you want this to be supported",
12199 | session->cipher);
12200 | }
12201 | break;
12202 | }
12203 | }
12204 | /* Client Key Exchange and Server Key Exchange handshake dissections. }}} */
12205 |
12206 | void
12207 | tls13_dissect_hnd_key_update(ssl_common_dissect_t *hf, tvbuff_t *tvb,
12208 | proto_tree *tree, uint32_t offset)
12209 | {
12210 | /* RFC 8446 Section 4.6.3
12211 | * enum {
12212 | * update_not_requested(0), update_requested(1), (255)
12213 | * } KeyUpdateRequest;
12214 | *
12215 | * struct {
12216 | * KeyUpdateRequest request_update;
12217 | * } KeyUpdate;
12218 | */
12219 | proto_tree_add_item(tree, hf->hf.hs_key_update_request_update, tvb, offset, 1, ENC_NA0x00000000);
12220 | }
12221 |
12222 | void
12223 | ssl_common_register_ssl_alpn_dissector_table(const char *name,
12224 | const char *ui_name, const int proto)
12225 | {
12226 | ssl_alpn_dissector_table = register_dissector_table(name, ui_name,
12227 | proto, FT_STRING, STRING_CASE_SENSITIVE0);
12228 | register_dissector_table_alias(ssl_alpn_dissector_table, "ssl.handshake.extensions_alpn_str");
12229 | }
12230 |
12231 | void
12232 | ssl_common_register_dtls_alpn_dissector_table(const char *name,
12233 | const char *ui_name, const int proto)
12234 | {
12235 | dtls_alpn_dissector_table = register_dissector_table(name, ui_name,
12236 | proto, FT_STRING, STRING_CASE_SENSITIVE0);
12237 | register_dissector_table_alias(ssl_alpn_dissector_table, "dtls.handshake.extensions_alpn_str");
12238 | }
12239 |
12240 | void
12241 | ssl_common_register_options(module_t *module, ssl_common_options_t *options, bool_Bool is_dtls)
12242 | {
12243 | prefs_register_string_preference(module, "psk", "Pre-Shared Key",
12244 | "Pre-Shared Key as HEX string. Should be 0 to 16 bytes.",
12245 | &(options->psk));
12246 |
12247 | if (is_dtls) {
12248 | prefs_register_obsolete_preference(module, "keylog_file");
12249 | prefs_register_static_text_preference(module, "keylog_file_removed",
12250 | "The (Pre)-Master-Secret log filename preference can be configured in the TLS protocol preferences.",
12251 | "Use the TLS protocol preference to configure the keylog file for both DTLS and TLS.");
12252 | return;
12253 | }
12254 |
12255 | prefs_register_filename_preference(module, "keylog_file", "(Pre)-Master-Secret log filename",
12256 | "The name of a file which contains a list of \n"
12257 | "(pre-)master secrets in one of the following formats:\n"
12258 | "\n"
12259 | "RSA <EPMS> <PMS>\n"
12260 | "RSA Session-ID:<SSLID> Master-Key:<MS>\n"
12261 | "CLIENT_RANDOM <CRAND> <MS>\n"
12262 | "PMS_CLIENT_RANDOM <CRAND> <PMS>\n"
12263 | "\n"
12264 | "Where:\n"
12265 | "<EPMS> = First 8 bytes of the Encrypted PMS\n"
12266 | "<PMS> = The Pre-Master-Secret (PMS) used to derive the MS\n"
12267 | "<SSLID> = The SSL Session ID\n"
12268 | "<MS> = The Master-Secret (MS)\n"
12269 | "<CRAND> = The Client's random number from the ClientHello message\n"
12270 | "\n"
12271 | "(All fields are in hex notation)",
12272 | &(options->keylog_filename), false0);
12273 | }
12274 |
12275 | void
12276 | ssl_calculate_handshake_hash(SslDecryptSession *ssl_session, tvbuff_t *tvb, uint32_t offset, uint32_t length, uint8_t msg_type, bool_Bool is_from_server)
12277 | {
12278 | /* The handshake transcript can be used in [D]TLS 1.2 for the extended
12279 | * master secret of RFC 7627, and in [D]TLS 1.3 for computing the secrets,
12280 | * though the latter is only useful when pke_ke (PSK-only key exchange) is
12281 | * negotiated. */
12282 | if (!ssl_session)
12283 | return;
12284 |
12285 | switch (ssl_session->session.version) {
12286 | /* The handshake message types used in the handshake hash are different
12287 | * in different versions. [D]TLS 1.3 tracks the messages up to the
12288 | * Finished, whereas 1.2 stops at the ClientKeyExchange. However, all start
12289 | * at the ClientHello and include the messages up to the ServerHello, at
12290 | * which point we know the version.
12291 | *
12292 | * XXX - However, DTLS 1.2 includes the DTLS-specific fragment info fields
12293 | * in its handshake transcript, whereas DTLS 1.3 does not (using the same
12294 | * format as TLS 1.3). We don't know at the point of the ClientHello which
12295 | * version will be used, so PSK only likely doesn't work for DTLS 1.3 yet.
12296 | *
12297 | * XXX - When the server responds with a HelloRetryRequest, for subsequent
12298 | * hashes (other than the first PSK Binder, see 4.2.11.2) ClientHello1 is
12299 | * replaced with a synthentic handhsake message of type "message_hash",
12300 | * per RFC 8446 4.4.1. We aren't concerned with that now, as a HRR generally
12301 | * rules out PSK-only key exchange, which is what we calculate the hash for
12302 | * here. (The possible exception is when a server sends a HRR to reject
12303 | * early data but the server and client otherwise agree on psk_ke, if
12304 | * any client/server pairs support that.) We do support that in the context
12305 | * of computing the hash for Encrypted Client Hello; see elsewhere.
12306 | */
12307 | case TLSV1DOT3_VERSION0x304:
12308 | case DTLSV1DOT3_VERSION0xfefc:
12309 | /* In [D]TLS 1.3 only the following handshake messages are used in the
12310 | * handshake transcript. EndOfEarlyData and the Client Certificate,
12311 | * Certificate Verify, and Finished are used in deriving the
12312 | * resumption_master_secret but not the other secrets derived from
12313 | * the master secret (client or server app traffic secret, exporter
12314 | * secret). We don't yet support calculating a PSK to resume via
12315 | * the resumption_master_secret, so we simply stop the transcript
12316 | * with the server Finished. See RFC 8446 4.4.1 & 7.1 */
12317 | switch (msg_type) {
12318 | case SSL_HND_CLIENT_HELLO:
12319 | case SSL_HND_SERVER_HELLO:
12320 | case SSL_HND_HELLO_RETRY_REQUEST:
12321 | case SSL_HND_ENCRYPTED_EXTENSIONS:
12322 | case SSL_HND_CERT_REQUEST:
12323 | break;
12324 | case SSL_HND_CERTIFICATE:
12325 | case SSL_HND_CERT_VERIFY:
12326 | case SSL_HND_FINISHED:
12327 | if (!is_from_server)
12328 | return;
12329 | break;
12330 | case SSL_HND_END_OF_EARLY_DATA:
12331 | default:
12332 | return;
12333 | }
12334 | break;
12335 | default:
12336 | /* In [D]TLS 1.2, the handshake hash for the Extended Master Secret
12337 | * (RFC 7627) is calculated up to and including ClientKeyExchange,
12338 | * but the keys are not retrieved until ChangeCipherSpec later. If
12339 | * mutual authentication is requested by the server, an intervening
12340 | * CertificateVerify message can be sent but is not to be included
12341 | * in the hash. */
12342 | if (msg_type == SSL_HND_CERT_VERIFY)
12343 | return;
12344 | if (ssl_session->state & SSL_MASTER_SECRET(1<<5))
12345 | return;
12346 | break;
12347 | }
12348 |
12349 | uint32_t old_length = ssl_session->handshake_data.data_len;
12350 | ssl_debug_printf("Calculating hash with offset %d %d\n", offset, length);
12351 | if (tvb) {
12352 | if (tvb_bytes_exist(tvb, offset, length)) {
12353 | ssl_session->handshake_data.data = (unsigned char *)wmem_realloc(wmem_file_scope(), ssl_session->handshake_data.data, old_length + length);
12354 | tvb_memcpy(tvb, ssl_session->handshake_data.data + old_length, offset, length);
12355 | ssl_session->handshake_data.data_len += length;
12356 | }
12357 | } else {
12358 | /* DTLS calculates the hash as if each handshake message had been
12359 | * sent as a single fragment (RFC 6347, section 4.2.6) and passes
12360 | * in a null tvbuff to add 3 bytes for a zero fragment offset.
12361 | */
12362 | DISSECTOR_ASSERT_CMPINT(length, <, 4)((void) ((length < 4) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion " "length" " " "<" " " "4" " (" "%" "l" "d" " " "<" " " "%" "l" "d" ")", "epan/dissectors/packet-tls-utils.c" , 12362, (int64_t)length, (int64_t)4))));
12363 | ssl_session->handshake_data.data = (unsigned char *)wmem_realloc(wmem_file_scope(), ssl_session->handshake_data.data, old_length + length);
12364 | memset(ssl_session->handshake_data.data + old_length, 0, length);
12365 | ssl_session->handshake_data.data_len += length;
12366 | }
12367 | }
12368 |
12369 |
12370 | /*
12371 | * Editor modelines - https://www.wireshark.org/tools/modelines.html
12372 | *
12373 | * Local variables:
12374 | * c-basic-offset: 4
12375 | * tab-width: 8
12376 | * indent-tabs-mode: nil
12377 | * End:
12378 | *
12379 | * vi: set shiftwidth=4 tabstop=8 expandtab:
12380 | * :indentSize=4:tabSize=8:noTabs=true:
12381 | */