### Bug Summary

File: | builds/wireshark/wireshark/epan/wslua/wslua_tvb.c
Warning: | line 1092, column 5 2nd function call argument is an uninitialized value

### 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 wslua_tvb.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-21/lib/clang/21 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /usr/include/lua5.4 -isystem /builds/wireshark/wireshark/build/epan/wslua -isystem /builds/wireshark/wireshark/epan/wslua -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-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../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=gnu11 -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 -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2026-05-04-100403-3642-1 -x c /builds/wireshark/wireshark/epan/wslua/wslua_tvb.c

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1 | /*
2 | * wslua_tvb.c
3 | *
4 | * Wireshark's interface to the Lua Programming Language
5 | *
6 | * (c) 2006, Luis E. Garcia Ontanon <luis@ontanon.org>
7 | * (c) 2008, Balint Reczey <balint.reczey@ericsson.com>
8 | * (c) 2009, Stig Bjorlykke <stig@bjorlykke.org>
9 | * (c) 2014, Hadriel Kaplan <hadrielk@yahoo.com>
10 | *
11 | * Wireshark - Network traffic analyzer
12 | * By Gerald Combs <gerald@wireshark.org>
13 | * Copyright 1998 Gerald Combs
14 | *
15 | * SPDX-License-Identifier: GPL-2.0-or-later
16 | */
17 |
18 | #include "config.h"
19 |
20 | #include "wslua.h"
21 | #include <epan/wmem_scopes.h>
22 |
23 |
24 | /* WSLUA_MODULE Tvb Functions For Handling Packet Data */
25 |
26 |
27 | /*
28 | * Tvb & TvbRange
29 | *
30 | * a Tvb represents a tvbuff_t in Lua.
31 | * a TvbRange represents a range in a tvb (tvb,offset,length) its main purpose is to do bounds checking,
32 | * It helps, too, simplifying argument passing to Tree.
33 | *
34 | * Normally in Wireshark explicit bounds checking is unnecessary as the tvbuff
35 | * functions throw appropriate exceptions depending on why data wasn't present.
36 | * In Lua, the interaction between the exception handling in epan and Lua's error
37 | * handling, both of which use setjmp/longjmp, requires careful programming to
38 | * avoid longjmp'ing down to the stack to a location that has already exited,
39 | * particularly when Lua dissector calls are nested. TvbRange reduces the amount
40 | * of possible exceptions (and TRY/CATCH to deal with them) by doing preemptive
41 | * bounds checking - at a cost of making it impossible to support truncated
42 | * captures where captured length < reported length (#15655).
43 | *
44 | * These lua objects refer to structures in wireshark that are freed independently from Lua's garbage collector.
45 | * To avoid using pointers from Lua to Wireshark structures that are already freed, we maintain a list of the
46 | * pointers each with a marker that tracks its expiry.
47 | *
48 | * All pointers are marked as expired when the dissection of the current frame is finished or when the garbage
49 | * collector tries to free the object referring to the pointer, whichever comes first.
50 | *
51 | * All allocated memory chunks used for tracking the pointers' state are freed after marking the pointer as expired
52 | * by the garbage collector or by the end of the dissection of the current frame, whichever comes second.
53 | *
54 | * We check the expiry state of the pointer before each access.
55 | *
56 | */
57 |
58 | WSLUA_CLASS_DEFINE(Tvb,FAIL_ON_NULL_OR_EXPIRED("Tvb"))Tvb toTvb(lua_State* L, int idx) { Tvb* v = (Tvb*)lua_touserdata (L, idx); if (!v) luaL_error(L, "bad argument %d (%s expected, got %s)" , idx, "Tvb", lua_typename(L, lua_type(L, idx))); return v ? * v : ((void*)0); } Tvb checkTvb(lua_State* L, int idx) { Tvb* p ; luaL_checktype(L,idx,7); p = (Tvb*)luaL_checkudata(L, idx, "Tvb" ); if (!*p) { luaL_argerror(L,idx,"null " "Tvb"); } else if ( (*p)->expired) { luaL_argerror(L,idx,"expired " "Tvb"); }; return p ? *p : ((void*)0); } Tvb* pushTvb(lua_State* L, Tvb v) { Tvb* p; luaL_checkstack(L,2,"Unable to grow stack\n"); p = (Tvb*)lua_newuserdatauv(L,sizeof(Tvb),1); *p = v; (lua_getfield (L, (-1000000 - 1000), ("Tvb"))); lua_setmetatable(L, -2); return p; }_Bool isTvb(lua_State* L,int i) { void *p; if(!lua_isuserdata (L,i)) return 0; p = lua_touserdata(L, i); lua_getfield(L, (- 1000000 - 1000), "Tvb"); if (p == ((void*)0) || !lua_getmetatable (L, i) || !lua_rawequal(L, -1, -2)) p=((void*)0); lua_settop( L, -(2)-1); return p ? 1 : 0; } Tvb shiftTvb(lua_State* L,int i) { Tvb* p; if(!lua_isuserdata(L,i)) return ((void*)0); p = (Tvb*)lua_touserdata(L, i); lua_getfield(L, (-1000000 - 1000 ), "Tvb"); if (p == ((void*)0) || !lua_getmetatable(L, i) || ! lua_rawequal(L, -1, -2)) p=((void*)0); lua_settop(L, -(2)-1); if (p) { (lua_rotate(L, (i), -1), lua_settop(L, -(1)-1)); return *p; } else return ((void*)0);} typedef int dummyTvb;
59 | /* A <<lua_class_Tvb,`Tvb`>> represents the packet's buffer. It is passed as an argument to listeners and dissectors,
60 | and can be used to extract information (via <<lua_class_TvbRange,`TvbRange`>>) from the packet's data.
61 |
62 | To create a <<lua_class_TvbRange,`TvbRange`>> the <<lua_class_Tvb,`Tvb`>> must be called with offset and length as optional arguments;
63 | the offset defaults to 0 and the length to `tvb:captured_len()`.
64 |
65 | [WARNING]
66 | ====
67 | Tvbs are usable only by the current listener or dissector call and are destroyed
68 | as soon as the listener or dissector returns, so references to them are unusable once the function
69 | has returned.
70 | ====
71 | */
72 |
73 | static GPtrArray* outstanding_Tvb;
74 | static GPtrArray* outstanding_TvbRange;
75 |
76 | /* this is used to push Tvbs that were created brand new by wslua code */
77 | int push_wsluaTvb(lua_State* L, Tvb t) {
78 | g_ptr_array_add(outstanding_Tvb,t);
79 | pushTvb(L,t);
80 | return 1;
81 | }
82 |
83 | #define PUSH_TVBRANGE(L,t){g_ptr_array_add(outstanding_TvbRange,t);pushTvbRange(L,t);} {g_ptr_array_add(outstanding_TvbRange,t);pushTvbRange(L,t);}
84 |
85 |
86 | static void free_Tvb(Tvb tvb) {
87 | if (!tvb) return;
88 |
89 | if (!tvb->expired) {
90 | tvb->expired = true1;
91 | } else {
92 | if (tvb->need_free)
93 | tvb_free(tvb->ws_tvb);
94 | g_free(tvb);
95 | }
96 | }
97 |
98 | void clear_outstanding_Tvb(void) {
99 | while (outstanding_Tvb->len) {
100 | Tvb tvb = (Tvb)g_ptr_array_remove_index_fast(outstanding_Tvb,0);
101 | free_Tvb(tvb);
102 | }
103 | }
104 |
105 | /* this is used to push Tvbs that just point to pre-existing C-code Tvbs */
106 | Tvb* push_Tvb(lua_State* L, tvbuff_t* ws_tvb) {
107 | Tvb tvb = (Tvb)g_malloc(sizeof(struct _wslua_tvb));
108 | tvb->ws_tvb = ws_tvb;
109 | tvb->expired = false0;
110 | tvb->need_free = false0;
111 | g_ptr_array_add(outstanding_Tvb,tvb);
112 | return pushTvb(L,tvb);
113 | }
114 |
115 |
116 | /* WSLUA_ATTRIBUTE Tvb_captured_length RO The captured length of the Tvb
117 | (amount saved in the capture process). Mirrors `tvb:captured_len()`. */
118 | WSLUA_ATTRIBUTE_GET(Tvb,captured_length, {static int Tvb_get_captured_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_captured_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_captured_length
119 | lua_pushinteger(L, tvb_captured_length(obj->ws_tvb));static int Tvb_get_captured_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_captured_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_captured_length
120 | })static int Tvb_get_captured_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_captured_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_captured_length;
121 |
122 | /* WSLUA_ATTRIBUTE Tvb_reported_length RO The reported length of the Tvb
123 | (length on the network). Mirrors `tvb:reported_len()`. */
124 | WSLUA_ATTRIBUTE_GET(Tvb,reported_length, {static int Tvb_get_reported_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_reported_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_reported_length
125 | lua_pushinteger(L, tvb_reported_length(obj->ws_tvb));static int Tvb_get_reported_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_reported_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_reported_length
126 | })static int Tvb_get_reported_length (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_reported_length(obj ->ws_tvb));} return 1; } typedef void __dummyTvb_get_reported_length;
127 |
128 | /* WSLUA_ATTRIBUTE Tvb_raw_offset RO The raw offset of this (sub) Tvb in its
129 | source Tvb. Mirrors `tvb:offset()`. */
130 | WSLUA_ATTRIBUTE_GET(Tvb,raw_offset, {static int Tvb_get_raw_offset (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_raw_offset(obj->ws_tvb)); } return 1; } typedef void __dummyTvb_get_raw_offset
131 | lua_pushinteger(L, tvb_raw_offset(obj->ws_tvb));static int Tvb_get_raw_offset (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_raw_offset(obj->ws_tvb)); } return 1; } typedef void __dummyTvb_get_raw_offset
132 | })static int Tvb_get_raw_offset (lua_State* L) { Tvb obj = checkTvb (L,1); { lua_pushinteger(L, tvb_raw_offset(obj->ws_tvb)); } return 1; } typedef void __dummyTvb_get_raw_offset;
133 |
134 | WSLUA_METAMETHODstatic int Tvb__tostring(lua_State* L) {
135 | /*
136 | Convert the bytes of a <<lua_class_Tvb,`Tvb`>> into a string of
137 | the form `Tvb: captured=<C> reported=<R> bytes=<hex>`.
138 | The hex preview is automatically truncated by `tvb_bytes_to_str`
139 | to a small number of bytes (currently 36) so the rendering stays
140 | useful in the debugger Variables view and in `print()` for large
141 | packets.
142 | */
143 | Tvb tvb = checkTvb(L,1);
144 | int captured = tvb_captured_length(tvb->ws_tvb);
145 | int reported = tvb_reported_length(tvb->ws_tvb);
146 | char* str = tvb_bytes_to_str(NULL((void*)0), tvb->ws_tvb, 0, captured);
147 |
148 | lua_pushfstring(L, "Tvb: captured=%d reported=%d bytes=%s",
149 | captured, reported, str ? str : "");
150 |
151 | wmem_free(NULL((void*)0), str);
152 |
153 | WSLUA_RETURN(1)return (1); /* The string. */
154 | }
155 |
156 | /* Gets registered as metamethod automatically by WSLUA_REGISTER_CLASS/META */
157 | static int Tvb__gc(lua_State* L) {
158 | Tvb tvb = toTvb(L,1);
159 |
160 | free_Tvb(tvb);
161 |
162 | return 0;
163 |
164 | }
165 |
166 | WSLUA_METHODstatic int Tvb_reported_len(lua_State* L) {
167 | /* Obtain the reported length (length on the network) of a <<lua_class_Tvb,`Tvb`>>. */
168 | Tvb tvb = checkTvb(L,1);
169 |
170 | lua_pushinteger(L,tvb_reported_length(tvb->ws_tvb));
171 | WSLUA_RETURN(1)return (1); /* The reported length of the <<lua_class_Tvb,`Tvb`>>. */
172 | }
173 |
174 | WSLUA_METHODstatic int Tvb_captured_len(lua_State* L) {
175 | /* Obtain the captured length (amount saved in the capture process) of a <<lua_class_Tvb,`Tvb`>>. */
176 | Tvb tvb = checkTvb(L,1);
177 |
178 | lua_pushinteger(L,tvb_captured_length(tvb->ws_tvb));
179 | WSLUA_RETURN(1)return (1); /* The captured length of the <<lua_class_Tvb,`Tvb`>>. */
180 | }
181 |
182 | WSLUA_METHODstatic int Tvb_len(lua_State* L) {
183 | /* Obtain the captured length (amount saved in the capture process) of a <<lua_class_Tvb,`Tvb`>>.
184 | Same as captured_len; kept only for backwards compatibility */
185 | Tvb tvb = checkTvb(L,1);
186 |
187 | lua_pushinteger(L,tvb_captured_length(tvb->ws_tvb));
188 | WSLUA_RETURN(1)return (1); /* The captured length of the <<lua_class_Tvb,`Tvb`>>. */
189 | }
190 |
191 | WSLUA_METHODstatic int Tvb_reported_length_remaining(lua_State* L) {
192 | /* Obtain the reported (not captured) length of packet data to end of a <<lua_class_Tvb,`Tvb`>> or 0 if the
193 | offset is beyond the end of the <<lua_class_Tvb,`Tvb`>>. */
194 | #define WSLUA_OPTARG_Tvb_reported_length_remaining_OFFSET2 2 /* The offset (in octets) from the beginning of the <<lua_class_Tvb,`Tvb`>>. Defaults to 0. */
195 | Tvb tvb = checkTvb(L,1);
196 | int offset = (int) luaL_optinteger(L, WSLUA_OPTARG_Tvb_reported_length_remaining_OFFSET2, 0);
197 |
198 | lua_pushinteger(L,tvb_reported_length_remaining(tvb->ws_tvb, offset));
199 | WSLUA_RETURN(1)return (1); /* The remaining reported length of the <<lua_class_Tvb,`Tvb`>>. */
200 | }
201 |
202 | WSLUA_METHODstatic int Tvb_bytes(lua_State* L) {
203 | /* Obtain a <<lua_class_ByteArray,`ByteArray`>> from a <<lua_class_Tvb,`Tvb`>>. */
204 | #define WSLUA_OPTARG_Tvb_bytes_OFFSET2 2 /* The offset (in octets) from the beginning of the <<lua_class_Tvb,`Tvb`>>. Defaults to 0. */
205 | #define WSLUA_OPTARG_Tvb_bytes_LENGTH3 3 /* The length (in octets) of the range. Defaults to until the end of the <<lua_class_Tvb,`Tvb`>>. */
206 | Tvb tvb = checkTvb(L,1);
207 | GByteArray* ba;
208 | #if LUA_VERSION_NUM504 >= 503
209 | int offset = (int)luaL_optinteger(L, WSLUA_OPTARG_Tvb_bytes_OFFSET2, 0);
210 | int len = (int)luaL_optinteger(L, WSLUA_OPTARG_Tvb_bytes_LENGTH3, -1);
211 | #else
212 | int offset = luaL_optint(L, WSLUA_OPTARG_Tvb_bytes_OFFSET2, 0);
213 | int len = luaL_optint(L,WSLUA_OPTARG_Tvb_bytes_LENGTH3,-1);
214 | #endif
215 | if (tvb->expired) {
216 | luaL_error(L,"expired tvb");
217 | return 0;
218 | }
219 |
220 | /* XXX - Why is *any* negative value allowed here to mean "to the
221 | * end of the Tvb" instead of just -1 as elsewhere?
222 | */
223 | if (len < 0) {
224 | len = tvb_captured_length_remaining(tvb->ws_tvb,offset);
225 | if (len < 0) {
226 | luaL_error(L,"out of bounds");
227 | return 0;
228 | }
229 | } else if ( (unsigned)(len + offset) > tvb_captured_length(tvb->ws_tvb)) {
230 | luaL_error(L,"Range is out of bounds");
231 | return 0;
232 | }
233 |
234 | ba = g_byte_array_new();
235 | g_byte_array_append(ba, tvb_get_ptr(tvb->ws_tvb, offset, len), len);
236 | pushByteArray(L,ba);
237 |
238 | WSLUA_RETURN(1)return (1); /* The <<lua_class_ByteArray,`ByteArray`>> object or nil. */
239 | }
240 |
241 | WSLUA_METHODstatic int Tvb_offset(lua_State* L) {
242 | /* Returns the raw offset (from the beginning of the source <<lua_class_Tvb,`Tvb`>>) of a sub <<lua_class_Tvb,`Tvb`>>. */
243 | Tvb tvb = checkTvb(L,1);
244 |
245 | lua_pushinteger(L,tvb_raw_offset(tvb->ws_tvb));
246 | WSLUA_RETURN(1)return (1); /* The raw offset of the <<lua_class_Tvb,`Tvb`>>. */
247 | }
248 |
249 |
250 | #if USED_FOR_DOC_PURPOSES
251 | WSLUA_METAMETHODstatic int Tvb__call(lua_State* L) {
252 | /* Equivalent to tvb:range(...) */
253 | return 0;
254 | }
255 | #endif
256 |
257 |
258 | WSLUA_METHODstatic int Tvb_range(lua_State* L) {
259 | /* Creates a <<lua_class_TvbRange,`TvbRange`>> from this <<lua_class_Tvb,`Tvb`>>. */
260 | #define WSLUA_OPTARG_Tvb_range_OFFSET2 2 /* The offset (in octets) from the beginning of the <<lua_class_Tvb,`Tvb`>>. Defaults to 0. */
261 | #define WSLUA_OPTARG_Tvb_range_LENGTH3 3 /* The length (in octets) of the range. Defaults to -1, which specifies the remaining bytes in the <<lua_class_Tvb,`Tvb`>>. */
262 |
263 | Tvb tvb = checkTvb(L,1);
264 | int offset = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_range_OFFSET2,0);
265 | int len = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_range_LENGTH3,-1);
266 |
267 | if (push_TvbRange(L,tvb->ws_tvb,offset,len)) {
268 | WSLUA_RETURN(1)return (1); /* The TvbRange */
269 | }
270 |
271 | return 0;
272 | }
273 |
274 | WSLUA_METHODstatic int Tvb_raw(lua_State* L) {
275 | /* Obtain a Lua string of the binary bytes in a <<lua_class_Tvb,`Tvb`>>. */
276 | #define WSLUA_OPTARG_Tvb_raw_OFFSET2 2 /* The position of the first byte. Default is 0, or the first byte. */
277 | #define WSLUA_OPTARG_Tvb_raw_LENGTH3 3 /* The length of the segment to get. Default is -1, or the remaining bytes in the <<lua_class_Tvb,`Tvb`>>. */
278 | Tvb tvb = checkTvb(L,1);
279 | int offset = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_raw_OFFSET2,0);
280 | int len = (int) luaL_optinteger(L,WSLUA_OPTARG_Tvb_raw_LENGTH3,-1);
281 |
282 | if (!tvb) return 0;
283 | if (tvb->expired) {
284 | luaL_error(L,"expired tvb");
285 | return 0;
286 | }
287 |
288 | if ((unsigned)offset > tvb_captured_length(tvb->ws_tvb)) {
289 | WSLUA_OPTARG_ERROR(Tvb_raw,OFFSET,"offset beyond end of Tvb"){ luaL_argerror(L,2, "Tvb_raw" ": " "offset beyond end of Tvb" ); };
290 | return 0;
291 | }
292 |
293 | if (len == -1) {
294 | len = tvb_captured_length_remaining(tvb->ws_tvb,offset);
295 | if (len < 0) {
296 | luaL_error(L,"out of bounds");
297 | return false0;
298 | }
299 | } else if ( (unsigned)(len + offset) > tvb_captured_length(tvb->ws_tvb)) {
300 | luaL_error(L,"Range is out of bounds");
301 | return false0;
302 | }
303 |
304 | lua_pushlstring(L, (const char*)tvb_get_ptr(tvb->ws_tvb, offset, len), len);
305 |
306 | WSLUA_RETURN(1)return (1); /* A Lua string of the binary bytes in the <<lua_class_Tvb,`Tvb`>>. */
307 | }
308 |
309 | WSLUA_METAMETHODstatic int Tvb__eq(lua_State* L) {
310 | /* Checks whether contents of two <<lua_class_Tvb,`Tvb`>>s are equal. */
311 | Tvb tvb_l = checkTvb(L,1);
312 | Tvb tvb_r = checkTvb(L,2);
313 |
314 | int len_l = tvb_captured_length(tvb_l->ws_tvb);
315 | int len_r = tvb_captured_length(tvb_r->ws_tvb);
316 |
317 | /* it is not an error if their ds_tvb are different... they're just not equal */
318 | if (len_l == len_r)
319 | {
320 | const uint8_t* lp = tvb_get_ptr(tvb_l->ws_tvb, 0, len_l);
321 | const uint8_t* rp = tvb_get_ptr(tvb_r->ws_tvb, 0, len_r);
322 |
323 | int ret = memcmp(lp, rp, len_l) == 0 ? 1 : 0;
324 |
325 | lua_pushboolean(L,ret);
326 | } else {
327 | lua_pushboolean(L,0);
328 | }
329 |
330 | return 1;
331 | }
332 |
333 | WSLUA_METHODSstatic const luaL_Reg Tvb_methods[] = {
334 | WSLUA_CLASS_FNREG(Tvb,bytes){ "bytes", Tvb_bytes },
335 | WSLUA_CLASS_FNREG(Tvb,range){ "range", Tvb_range },
336 | WSLUA_CLASS_FNREG(Tvb,offset){ "offset", Tvb_offset },
337 | WSLUA_CLASS_FNREG(Tvb,reported_len){ "reported_len", Tvb_reported_len },
338 | WSLUA_CLASS_FNREG(Tvb,reported_length_remaining){ "reported_length_remaining", Tvb_reported_length_remaining },
339 | WSLUA_CLASS_FNREG(Tvb,captured_len){ "captured_len", Tvb_captured_len },
340 | WSLUA_CLASS_FNREG(Tvb,len){ "len", Tvb_len },
341 | WSLUA_CLASS_FNREG(Tvb,raw){ "raw", Tvb_raw },
342 | { NULL((void*)0), NULL((void*)0) }
343 | };
344 |
345 | WSLUA_METAstatic const luaL_Reg Tvb_meta[] = {
346 | WSLUA_CLASS_MTREG(Tvb,eq){ "__" "eq", Tvb__eq },
347 | WSLUA_CLASS_MTREG(Tvb,tostring){ "__" "tostring", Tvb__tostring },
348 | {"__call", Tvb_range},
349 | { NULL((void*)0), NULL((void*)0) }
350 | };
351 |
352 | /* Read-only attributes. Registered so the Lua debugger can expand a Tvb
353 | * in the Variables view without having to invoke methods. The attribute
354 | * names intentionally differ from the corresponding method names to
355 | * avoid the attribute/method collision check performed by
356 | * wslua_push_attributes. */
357 | WSLUA_ATTRIBUTESstatic const wslua_attribute_table Tvb_attributes[] = {
358 | WSLUA_ATTRIBUTE_ROREG(Tvb,captured_length){ "captured_length", Tvb_get_captured_length, ((void*)0) },
359 | WSLUA_ATTRIBUTE_ROREG(Tvb,reported_length){ "reported_length", Tvb_get_reported_length, ((void*)0) },
360 | WSLUA_ATTRIBUTE_ROREG(Tvb,raw_offset){ "raw_offset", Tvb_get_raw_offset, ((void*)0) },
361 | { NULL((void*)0), NULL((void*)0), NULL((void*)0) }
362 | };
363 |
364 | int Tvb_register(lua_State* L) {
365 | WSLUA_REGISTER_CLASS_WITH_ATTRS(Tvb){ const wslua_class Tvb_class = { .name = "Tvb", .class_methods = Tvb_methods, .class_meta = Tvb_meta, .instance_methods = Tvb_methods , .instance_meta = Tvb_meta, .attrs = Tvb_attributes }; wslua_register_class (L, &Tvb_class); (lua_getfield(L, (-1000000 - 1000), ("Tvb" ))); lua_pushcclosure(L, (Tvb__gc), 0); lua_setfield(L, -2, "__gc" ); lua_settop(L, -(1)-1); };
366 | if (outstanding_Tvb != NULL((void*)0)) {
367 | g_ptr_array_unref(outstanding_Tvb);
368 | }
369 | outstanding_Tvb = g_ptr_array_new();
370 | return 0;
371 | }
372 |
373 |
374 |
375 |
376 | WSLUA_CLASS_DEFINE(TvbRange,FAIL_ON_NULL("TvbRange"))TvbRange toTvbRange(lua_State* L, int idx) { TvbRange* v = (TvbRange *)lua_touserdata (L, idx); if (!v) luaL_error(L, "bad argument %d (%s expected, got %s)" , idx, "TvbRange", lua_typename(L, lua_type(L, idx))); return v ? *v : ((void*)0); } TvbRange checkTvbRange(lua_State* L, int idx) { TvbRange* p; luaL_checktype(L,idx,7); p = (TvbRange*) luaL_checkudata(L, idx, "TvbRange"); if (! *p) luaL_argerror( L,idx,"null " "TvbRange"); return p ? *p : ((void*)0); } TvbRange * pushTvbRange(lua_State* L, TvbRange v) { TvbRange* p; luaL_checkstack (L,2,"Unable to grow stack\n"); p = (TvbRange*)lua_newuserdatauv (L,sizeof(TvbRange),1); *p = v; (lua_getfield(L, (-1000000 - 1000 ), ("TvbRange"))); lua_setmetatable(L, -2); return p; }_Bool isTvbRange (lua_State* L,int i) { void *p; if(!lua_isuserdata(L,i)) return 0; p = lua_touserdata(L, i); lua_getfield(L, (-1000000 - 1000 ), "TvbRange"); if (p == ((void*)0) || !lua_getmetatable(L, i ) || !lua_rawequal(L, -1, -2)) p=((void*)0); lua_settop(L, -( 2)-1); return p ? 1 : 0; } TvbRange shiftTvbRange(lua_State* L ,int i) { TvbRange* p; if(!lua_isuserdata(L,i)) return ((void *)0); p = (TvbRange*)lua_touserdata(L, i); lua_getfield(L, (- 1000000 - 1000), "TvbRange"); if (p == ((void*)0) || !lua_getmetatable (L, i) || !lua_rawequal(L, -1, -2)) p=((void*)0); lua_settop( L, -(2)-1); if (p) { (lua_rotate(L, (i), -1), lua_settop(L, - (1)-1)); return *p; } else return ((void*)0);} typedef int dummyTvbRange;
377 | /*
378 | A <<lua_class_TvbRange,`TvbRange`>> represents a usable range of a <<lua_class_Tvb,`Tvb`>> and is used to extract data from the <<lua_class_Tvb,`Tvb`>> that generated it.
379 |
380 | <<lua_class_TvbRange,`TvbRange`>>s are created by calling a <<lua_class_Tvb,`Tvb`>> (e.g. 'tvb(offset,length)').
381 | A length of -1, which is the default, means to use the bytes up to the end of the <<lua_class_Tvb,`Tvb`>>.
382 | If the <<lua_class_TvbRange,`TvbRange`>> span is outside the <<lua_class_Tvb,`Tvb`>>'s range the creation will cause a runtime error.
383 | */
384 |
385 | static void free_TvbRange(TvbRange tvbr) {
386 | if (!(tvbr && tvbr->tvb)) return;
387 |
388 | if (!tvbr->tvb->expired) {
389 | tvbr->tvb->expired = true1;
390 | } else {
391 | free_Tvb(tvbr->tvb);
392 | g_free(tvbr);
393 | }
394 | }
395 |
396 | void clear_outstanding_TvbRange(void) {
397 | while (outstanding_TvbRange->len) {
398 | TvbRange tvbr = (TvbRange)g_ptr_array_remove_index_fast(outstanding_TvbRange,0);
399 | free_TvbRange(tvbr);
400 | }
401 | }
402 |
403 |
404 | bool_Bool push_TvbRange(lua_State* L, tvbuff_t* ws_tvb, int offset, int len) {
405 | TvbRange tvbr;
406 |
407 | if (!ws_tvb) {
408 | luaL_error(L,"expired tvb");
409 | return false0;
410 | }
411 |
412 | /* XXX - What if offset is negative? In epan/tvbuff.h functions, a negative
413 | * offset means "the offset from the end of the backing tvbuff at which
414 | * the new tvbuff's data begins", but that's not done consistently in this
415 | * code when taking ranges and passing an offset. And maybe we don't want
416 | * to support negative offsets at all in the future (#20103).
417 | */
418 | if (len == -1) {
419 | len = tvb_captured_length_remaining(ws_tvb,offset);
420 | if (len < 0) {
421 | luaL_error(L,"out of bounds");
422 | return false0;
423 | }
424 | } else if (len < -1) {
425 | luaL_error(L, "negative length in tvb range");
426 | return false0;
427 | } else if ( (unsigned)(len + offset) > tvb_captured_length(ws_tvb)) {
428 | luaL_error(L,"Range is out of bounds");
429 | return false0;
430 | }
431 |
432 | tvbr = (TvbRange)g_malloc(sizeof(struct _wslua_tvbrange));
433 | tvbr->tvb = (Tvb)g_malloc(sizeof(struct _wslua_tvb));
434 | tvbr->tvb->ws_tvb = ws_tvb;
435 | tvbr->tvb->expired = false0;
436 | tvbr->tvb->need_free = false0;
437 | tvbr->offset = offset;
438 | tvbr->len = len;
439 |
440 | PUSH_TVBRANGE(L,tvbr){g_ptr_array_add(outstanding_TvbRange,tvbr);pushTvbRange(L,tvbr );};
441 |
442 | return true1;
443 | }
444 |
445 |
446 | WSLUA_METHODstatic int TvbRange_tvb(lua_State *L) {
447 | /* Creates a new <<lua_class_Tvb,`Tvb`>> from a <<lua_class_TvbRange,`TvbRange`>>. */
448 |
449 | TvbRange tvbr = checkTvbRange(L,1);
450 | Tvb tvb;
451 |
452 | if (! (tvbr && tvbr->tvb)) return 0;
453 | if (tvbr->tvb->expired) {
454 | luaL_error(L,"expired tvb");
455 | return 0;
456 | }
457 |
458 | if (tvb_bytes_exist(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len)) {
459 | tvb = (Tvb)g_malloc(sizeof(struct _wslua_tvb));
460 | tvb->expired = false0;
461 | tvb->need_free = false0;
462 | tvb->ws_tvb = tvb_new_subset_length(tvbr->tvb->ws_tvb,tvbr->offset,tvbr->len);
463 | return push_wsluaTvb(L, tvb);
464 | } else {
465 | luaL_error(L,"Out Of Bounds");
466 | return 0;
467 | }
468 | }
469 |
470 |
471 | /*
472 | * get a Blefuscuoan unsigned integer from a tvb
473 | */
474 | WSLUA_METHODstatic int TvbRange_uint(lua_State* L) {
475 | /* Get a Big Endian (network order) unsigned integer from a <<lua_class_TvbRange,`TvbRange`>>.
476 | The range must be 1-4 octets long. */
477 | TvbRange tvbr = checkTvbRange(L,1);
478 | if (!(tvbr && tvbr->tvb)) return 0;
479 | if (tvbr->tvb->expired) {
480 | luaL_error(L,"expired tvb");
481 | return 0;
482 | }
483 |
484 | switch (tvbr->len) {
485 | case 1:
486 | lua_pushinteger(L,tvb_get_uint8(tvbr->tvb->ws_tvb,tvbr->offset));
487 | return 1;
488 | case 2:
489 | lua_pushinteger(L,tvb_get_ntohs(tvbr->tvb->ws_tvb,tvbr->offset));
490 | return 1;
491 | case 3:
492 | lua_pushinteger(L,tvb_get_ntoh24(tvbr->tvb->ws_tvb,tvbr->offset));
493 | return 1;
494 | case 4:
495 | lua_pushinteger(L,tvb_get_ntohl(tvbr->tvb->ws_tvb,tvbr->offset));
496 | WSLUA_RETURN(1)return (1); /* The unsigned integer value. */
497 | default:
498 | luaL_error(L,"TvbRange:uint() does not handle %d byte integers",tvbr->len);
499 | return 0;
500 | }
501 | }
502 |
503 | /*
504 | * get a Lilliputian unsigned integer from a tvb
505 | */
506 | WSLUA_METHODstatic int TvbRange_le_uint(lua_State* L) {
507 | /* Get a Little Endian unsigned integer from a <<lua_class_TvbRange,`TvbRange`>>.
508 | The range must be 1-4 octets long. */
509 | TvbRange tvbr = checkTvbRange(L,1);
510 | if (!(tvbr && tvbr->tvb)) return 0;
511 | if (tvbr->tvb->expired) {
512 | luaL_error(L,"expired tvb");
513 | return 0;
514 | }
515 |
516 | switch (tvbr->len) {
517 | case 1:
518 | /* XXX unsigned anyway */
519 | lua_pushinteger(L,(lua_Integer)(unsigned)tvb_get_uint8(tvbr->tvb->ws_tvb,tvbr->offset));
520 | return 1;
521 | case 2:
522 | lua_pushinteger(L,tvb_get_letohs(tvbr->tvb->ws_tvb,tvbr->offset));
523 | return 1;
524 | case 3:
525 | lua_pushinteger(L,tvb_get_letoh24(tvbr->tvb->ws_tvb,tvbr->offset));
526 | return 1;
527 | case 4:
528 | lua_pushinteger(L,tvb_get_letohl(tvbr->tvb->ws_tvb,tvbr->offset));
529 | WSLUA_RETURN(1)return (1); /* The unsigned integer value */
530 | default:
531 | luaL_error(L,"TvbRange:le_uint() does not handle %d byte integers",tvbr->len);
532 | return 0;
533 | }
534 | }
535 |
536 | /*
537 | * get a Blefuscuoan unsigned 64 bit integer from a tvb
538 | */
539 | WSLUA_METHODstatic int TvbRange_uint64(lua_State* L) {
540 | /* Get a Big Endian (network order) unsigned 64 bit integer from a <<lua_class_TvbRange,`TvbRange`>>, as a <<lua_class_UInt64,`UInt64`>> object.
541 | The range must be 1-8 octets long. */
542 | TvbRange tvbr = checkTvbRange(L,1);
543 | if (!(tvbr && tvbr->tvb)) return 0;
544 | if (tvbr->tvb->expired) {
545 | luaL_error(L,"expired tvb");
546 | return 0;
547 | }
548 |
549 | switch (tvbr->len) {
550 | case 1:
551 | pushUInt64(L,tvb_get_uint8(tvbr->tvb->ws_tvb,tvbr->offset));
552 | return 1;
553 | case 2:
554 | pushUInt64(L,tvb_get_ntohs(tvbr->tvb->ws_tvb,tvbr->offset));
555 | return 1;
556 | case 3:
557 | pushUInt64(L,tvb_get_ntoh24(tvbr->tvb->ws_tvb,tvbr->offset));
558 | return 1;
559 | case 4:
560 | pushUInt64(L,tvb_get_ntohl(tvbr->tvb->ws_tvb,tvbr->offset));
561 | return 1;
562 | case 5:
563 | pushUInt64(L,tvb_get_ntoh40(tvbr->tvb->ws_tvb,tvbr->offset));
564 | return 1;
565 | case 6:
566 | pushUInt64(L,tvb_get_ntoh48(tvbr->tvb->ws_tvb,tvbr->offset));
567 | return 1;
568 | case 7:
569 | pushUInt64(L,tvb_get_ntoh56(tvbr->tvb->ws_tvb,tvbr->offset));
570 | return 1;
571 | case 8:
572 | pushUInt64(L,tvb_get_ntoh64(tvbr->tvb->ws_tvb,tvbr->offset));
573 | WSLUA_RETURN(1)return (1); /* The <<lua_class_UInt64,`UInt64`>> object. */
574 | default:
575 | luaL_error(L,"TvbRange:uint64() does not handle %d byte integers",tvbr->len);
576 | return 0;
577 | }
578 | }
579 |
580 | /*
581 | * get a Lilliputian unsigned 64 bit integer from a tvb
582 | */
583 | WSLUA_METHODstatic int TvbRange_le_uint64(lua_State* L) {
584 | /* Get a Little Endian unsigned 64 bit integer from a <<lua_class_TvbRange,`TvbRange`>>, as a <<lua_class_UInt64,`UInt64`>> object.
585 | The range must be 1-8 octets long. */
586 | TvbRange tvbr = checkTvbRange(L,1);
587 | if (!(tvbr && tvbr->tvb)) return 0;
588 | if (tvbr->tvb->expired) {
589 | luaL_error(L,"expired tvb");
590 | return 0;
591 | }
592 |
593 | switch (tvbr->len) {
594 | case 1:
595 | pushUInt64(L,tvb_get_uint8(tvbr->tvb->ws_tvb,tvbr->offset));
596 | return 1;
597 | case 2:
598 | pushUInt64(L,tvb_get_letohs(tvbr->tvb->ws_tvb,tvbr->offset));
599 | return 1;
600 | case 3:
601 | pushUInt64(L,tvb_get_letoh24(tvbr->tvb->ws_tvb,tvbr->offset));
602 | return 1;
603 | case 4:
604 | pushUInt64(L,tvb_get_letohl(tvbr->tvb->ws_tvb,tvbr->offset));
605 | return 1;
606 | case 5:
607 | pushUInt64(L,tvb_get_letoh40(tvbr->tvb->ws_tvb,tvbr->offset));
608 | return 1;
609 | case 6:
610 | pushUInt64(L,tvb_get_letoh48(tvbr->tvb->ws_tvb,tvbr->offset));
611 | return 1;
612 | case 7:
613 | pushUInt64(L,tvb_get_letoh56(tvbr->tvb->ws_tvb,tvbr->offset));
614 | return 1;
615 | case 8:
616 | pushUInt64(L,tvb_get_letoh64(tvbr->tvb->ws_tvb,tvbr->offset));
617 | WSLUA_RETURN(1)return (1); /* The <<lua_class_UInt64,`UInt64`>> object. */
618 | default:
619 | luaL_error(L,"TvbRange:le_uint64() does not handle %d byte integers",tvbr->len);
620 | return 0;
621 | }
622 | }
623 |
624 | /*
625 | * get a Blefuscuoan signed integer from a tvb
626 | */
627 | WSLUA_METHODstatic int TvbRange_int(lua_State* L) {
628 | /* Get a Big Endian (network order) signed integer from a <<lua_class_TvbRange,`TvbRange`>>.
629 | The range must be 1-4 octets long. */
630 | TvbRange tvbr = checkTvbRange(L,1);
631 | if (!(tvbr && tvbr->tvb)) return 0;
632 | if (tvbr->tvb->expired) {
633 | luaL_error(L,"expired tvb");
634 | return 0;
635 | }
636 |
637 | switch (tvbr->len) {
638 | case 1:
639 | lua_pushinteger(L,tvb_get_int8(tvbr->tvb->ws_tvb,tvbr->offset));
640 | return 1;
641 | case 2:
642 | lua_pushinteger(L,tvb_get_ntohis(tvbr->tvb->ws_tvb,tvbr->offset));
643 | return 1;
644 | case 3:
645 | lua_pushinteger(L,tvb_get_ntohi24(tvbr->tvb->ws_tvb,tvbr->offset));
646 | return 1;
647 | case 4:
648 | lua_pushinteger(L,tvb_get_ntohil(tvbr->tvb->ws_tvb,tvbr->offset));
649 | WSLUA_RETURN(1)return (1); /* The signed integer value. */
650 | /*
651 | * XXX:
652 | * lua uses double so we have 52 bits to play with
653 | * we are missing 5 and 6 byte integers within lua's range
654 | * and 64 bit integers are not supported (there's a lib for
655 | * lua that does).
656 | */
657 | default:
658 | luaL_error(L,"TvbRange:int() does not handle %d byte integers",tvbr->len);
659 | return 0;
660 | }
661 | }
662 |
663 | /*
664 | * get a Lilliputian signed integer from a tvb
665 | */
666 | WSLUA_METHODstatic int TvbRange_le_int(lua_State* L) {
667 | /* Get a Little Endian signed integer from a <<lua_class_TvbRange,`TvbRange`>>.
668 | The range must be 1-4 octets long. */
669 | TvbRange tvbr = checkTvbRange(L,1);
670 | if (!(tvbr && tvbr->tvb)) return 0;
671 | if (tvbr->tvb->expired) {
672 | luaL_error(L,"expired tvb");
673 | return 0;
674 | }
675 |
676 | switch (tvbr->len) {
677 | case 1:
678 | lua_pushinteger(L,tvb_get_int8(tvbr->tvb->ws_tvb,tvbr->offset));
679 | return 1;
680 | case 2:
681 | lua_pushinteger(L,tvb_get_letohis(tvbr->tvb->ws_tvb,tvbr->offset));
682 | return 1;
683 | case 3:
684 | lua_pushinteger(L,tvb_get_letohi24(tvbr->tvb->ws_tvb,tvbr->offset));
685 | return 1;
686 | case 4:
687 | lua_pushinteger(L,tvb_get_letohil(tvbr->tvb->ws_tvb,tvbr->offset));
688 | WSLUA_RETURN(1)return (1); /* The signed integer value. */
689 | default:
690 | luaL_error(L,"TvbRange:le_int() does not handle %d byte integers",tvbr->len);
691 | return 0;
692 | }
693 | }
694 |
695 | /*
696 | * get a Blefuscuoan signed 64 bit integer from a tvb
697 | */
698 | WSLUA_METHODstatic int TvbRange_int64(lua_State* L) {
699 | /* Get a Big Endian (network order) signed 64 bit integer from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Int64,`Int64`>> object.
700 | The range must be 1-8 octets long. */
701 | TvbRange tvbr = checkTvbRange(L,1);
702 | if (!(tvbr && tvbr->tvb)) return 0;
703 | if (tvbr->tvb->expired) {
704 | luaL_error(L,"expired tvb");
705 | return 0;
706 | }
707 |
708 | switch (tvbr->len) {
709 | case 1:
710 | pushInt64(L,tvb_get_int8(tvbr->tvb->ws_tvb,tvbr->offset));
711 | return 1;
712 | case 2:
713 | pushInt64(L,tvb_get_ntohis(tvbr->tvb->ws_tvb,tvbr->offset));
714 | return 1;
715 | case 3:
716 | pushInt64(L,tvb_get_ntohi24(tvbr->tvb->ws_tvb,tvbr->offset));
717 | return 1;
718 | case 4:
719 | pushInt64(L,tvb_get_ntohil(tvbr->tvb->ws_tvb,tvbr->offset));
720 | return 1;
721 | case 5:
722 | pushInt64(L,tvb_get_ntohi40(tvbr->tvb->ws_tvb,tvbr->offset));
723 | return 1;
724 | case 6:
725 | pushInt64(L,tvb_get_ntohi48(tvbr->tvb->ws_tvb,tvbr->offset));
726 | return 1;
727 | case 7:
728 | pushInt64(L,tvb_get_ntohi56(tvbr->tvb->ws_tvb,tvbr->offset));
729 | return 1;
730 | case 8:
731 | pushInt64(L,tvb_get_ntohi64(tvbr->tvb->ws_tvb,tvbr->offset));
732 | WSLUA_RETURN(1)return (1); /* The <<lua_class_Int64,`Int64`>> object. */
733 | default:
734 | luaL_error(L,"TvbRange:int64() does not handle %d byte integers",tvbr->len);
735 | return 0;
736 | }
737 | }
738 |
739 | /*
740 | * get a Lilliputian signed 64 bit integer from a tvb
741 | */
742 | WSLUA_METHODstatic int TvbRange_le_int64(lua_State* L) {
743 | /* Get a Little Endian signed 64 bit integer from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Int64,`Int64`>> object.
744 | The range must be 1-8 octets long. */
745 | TvbRange tvbr = checkTvbRange(L,1);
746 | if (!(tvbr && tvbr->tvb)) return 0;
747 | if (tvbr->tvb->expired) {
748 | luaL_error(L,"expired tvb");
749 | return 0;
750 | }
751 |
752 | switch (tvbr->len) {
753 | case 1:
754 | pushInt64(L,tvb_get_int8(tvbr->tvb->ws_tvb,tvbr->offset));
755 | return 1;
756 | case 2:
757 | pushInt64(L,tvb_get_letohis(tvbr->tvb->ws_tvb,tvbr->offset));
758 | return 1;
759 | case 3:
760 | pushInt64(L,tvb_get_letohi24(tvbr->tvb->ws_tvb,tvbr->offset));
761 | return 1;
762 | case 4:
763 | pushInt64(L,tvb_get_letohil(tvbr->tvb->ws_tvb,tvbr->offset));
764 | return 1;
765 | case 5:
766 | pushInt64(L,tvb_get_letohi40(tvbr->tvb->ws_tvb,tvbr->offset));
767 | return 1;
768 | case 6:
769 | pushInt64(L,tvb_get_letohi48(tvbr->tvb->ws_tvb,tvbr->offset));
770 | return 1;
771 | case 7:
772 | pushInt64(L,tvb_get_letohi56(tvbr->tvb->ws_tvb,tvbr->offset));
773 | return 1;
774 | case 8:
775 | pushInt64(L,tvb_get_letohi64(tvbr->tvb->ws_tvb,tvbr->offset));
776 | WSLUA_RETURN(1)return (1); /* The <<lua_class_Int64,`Int64`>> object. */
777 | default:
778 | luaL_error(L,"TvbRange:le_int64() does not handle %d byte integers",tvbr->len);
779 | return 0;
780 | }
781 | }
782 |
783 | /*
784 | * get a Blefuscuoan float
785 | */
786 | WSLUA_METHODstatic int TvbRange_float(lua_State* L) {
787 | /* Get a Big Endian (network order) floating point number from a <<lua_class_TvbRange,`TvbRange`>>.
788 | The range must be 4 or 8 octets long. */
789 | TvbRange tvbr = checkTvbRange(L,1);
790 | if (!(tvbr && tvbr->tvb)) return 0;
791 | if (tvbr->tvb->expired) {
792 | luaL_error(L,"expired tvb");
793 | return 0;
794 | }
795 |
796 | switch (tvbr->len) {
797 | case 4:
798 | lua_pushnumber(L,(double)tvb_get_ntohieee_float(tvbr->tvb->ws_tvb,tvbr->offset));
799 | return 1;
800 | case 8:
801 | lua_pushnumber(L,tvb_get_ntohieee_double(tvbr->tvb->ws_tvb,tvbr->offset));
802 | WSLUA_RETURN(1)return (1); /* The floating point value. */
803 | default:
804 | luaL_error(L,"TvbRange:float() does not handle %d byte floating numbers",tvbr->len);
805 | return 0;
806 | }
807 | }
808 |
809 | /*
810 | * get a Lilliputian float
811 | */
812 | WSLUA_METHODstatic int TvbRange_le_float(lua_State* L) {
813 | /* Get a Little Endian floating point number from a <<lua_class_TvbRange,`TvbRange`>>.
814 | The range must be 4 or 8 octets long. */
815 | TvbRange tvbr = checkTvbRange(L,1);
816 | if (!(tvbr && tvbr->tvb)) return 0;
817 |
818 | switch (tvbr->len) {
819 | case 4:
820 | lua_pushnumber(L,tvb_get_letohieee_float(tvbr->tvb->ws_tvb,tvbr->offset));
821 | return 1;
822 | case 8:
823 | lua_pushnumber(L,tvb_get_letohieee_double(tvbr->tvb->ws_tvb,tvbr->offset));
824 | WSLUA_RETURN(1)return (1); /* The floating point value. */
825 | default:
826 | luaL_error(L,"TvbRange:le_float() does not handle %d byte floating numbers",tvbr->len);
827 | return 0;
828 | }
829 | }
830 |
831 | WSLUA_METHODstatic int TvbRange_ipv4(lua_State* L) {
832 | /* Get an IPv4 Address from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Address,`Address`>> object. */
833 | TvbRange tvbr = checkTvbRange(L,1);
834 | Address addr;
835 |
836 | if ( !(tvbr && tvbr->tvb)) return 0;
837 | if (tvbr->tvb->expired) {
838 | luaL_error(L,"expired tvb");
839 | return 0;
840 | }
841 |
842 | if (tvbr->len != 4) {
843 | WSLUA_ERROR(TvbRange_ipv4,"The range must be 4 octets long"){ luaL_error(L, "%s%s", "TvbRange_ipv4" ": ", "The range must be 4 octets long" ); };
844 | return 0;
845 | }
846 |
847 | addr = g_new(address,1)((address *) g_malloc_n ((1), sizeof (address)));
848 | alloc_address_tvb(NULL((void*)0),addr,AT_IPv4,sizeof(uint32_t),tvbr->tvb->ws_tvb,tvbr->offset);
849 | pushAddress(L,addr);
850 |
851 | WSLUA_RETURN(1)return (1); /* The IPv4 <<lua_class_Address,`Address`>> object. */
852 | }
853 |
854 | WSLUA_METHODstatic int TvbRange_le_ipv4(lua_State* L) {
855 | /* Get an Little Endian IPv4 Address from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Address,`Address`>> object. */
856 | TvbRange tvbr = checkTvbRange(L,1);
857 | Address addr;
858 | uint32_t ip_addr;
859 |
860 | if ( !(tvbr && tvbr->tvb)) return 0;
861 | if (tvbr->tvb->expired) {
862 | luaL_error(L,"expired tvb");
863 | return 0;
864 | }
865 |
866 | if (tvbr->len != 4) {
867 | WSLUA_ERROR(TvbRange_ipv4,"The range must be 4 octets long"){ luaL_error(L, "%s%s", "TvbRange_ipv4" ": ", "The range must be 4 octets long" ); };
868 | return 0;
869 | }
870 |
871 | addr = g_new(address,1)((address *) g_malloc_n ((1), sizeof (address)));
872 | ip_addr = GUINT32_SWAP_LE_BE(tvb_get_ipv4(tvbr->tvb->ws_tvb,tvbr->offset))(((guint32) ( (((guint32) (tvb_get_ipv4(tvbr->tvb->ws_tvb ,tvbr->offset)) & (guint32) 0x000000ffU) << 24) | (((guint32) (tvb_get_ipv4(tvbr->tvb->ws_tvb,tvbr->offset )) & (guint32) 0x0000ff00U) << 8) | (((guint32) (tvb_get_ipv4 (tvbr->tvb->ws_tvb,tvbr->offset)) & (guint32) 0x00ff0000U ) >> 8) | (((guint32) (tvb_get_ipv4(tvbr->tvb->ws_tvb ,tvbr->offset)) & (guint32) 0xff000000U) >> 24)) ));
873 | alloc_address_wmem(NULL((void*)0), addr, AT_IPv4, sizeof(ip_addr), &ip_addr);
874 | pushAddress(L,addr);
875 |
876 | WSLUA_RETURN(1)return (1); /* The IPv4 <<lua_class_Address,`Address`>> object. */
877 | }
878 |
879 | WSLUA_METHODstatic int TvbRange_ipv6(lua_State* L) {
880 | /* Get an IPv6 Address from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Address,`Address`>> object. */
881 | TvbRange tvbr = checkTvbRange(L,1);
882 | Address addr;
883 |
884 | if ( !(tvbr && tvbr->tvb)) return 0;
885 | if (tvbr->tvb->expired) {
886 | luaL_error(L,"expired tvb");
887 | return 0;
888 | }
889 |
890 | if (tvbr->len != 16) {
891 | WSLUA_ERROR(TvbRange_ipv6,"The range must be 16 octets long"){ luaL_error(L, "%s%s", "TvbRange_ipv6" ": ", "The range must be 16 octets long" ); };
892 | return 0;
893 | }
894 |
895 | addr = g_new(address,1)((address *) g_malloc_n ((1), sizeof (address)));
896 | alloc_address_tvb(NULL((void*)0),addr,AT_IPv6,16,tvbr->tvb->ws_tvb,tvbr->offset);
897 | pushAddress(L,addr);
898 |
899 | WSLUA_RETURN(1)return (1); /* The IPv6 <<lua_class_Address,`Address`>> object. */
900 | }
901 |
902 | WSLUA_METHODstatic int TvbRange_ether(lua_State* L) {
903 | /* Get an Ethernet Address from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_Address,`Address`>> object. */
904 | TvbRange tvbr = checkTvbRange(L,1);
905 | Address addr;
906 |
907 | if ( !(tvbr && tvbr->tvb)) return 0;
908 | if (tvbr->tvb->expired) {
909 | luaL_error(L,"expired tvb");
910 | return 0;
911 | }
912 |
913 | if (tvbr->len != 6) {
914 | WSLUA_ERROR(TvbRange_ether,"The range must be 6 bytes long"){ luaL_error(L, "%s%s", "TvbRange_ether" ": ", "The range must be 6 bytes long" ); };
915 | return 0;
916 | }
917 |
918 | addr = g_new(address,1)((address *) g_malloc_n ((1), sizeof (address)));
919 | alloc_address_tvb(NULL((void*)0),addr,AT_ETHER,6,tvbr->tvb->ws_tvb,tvbr->offset);
920 | pushAddress(L,addr);
921 |
922 | WSLUA_RETURN(1)return (1); /* The Ethernet <<lua_class_Address,`Address`>> object. */
923 | }
924 |
925 | WSLUA_METHODstatic int TvbRange_nstime(lua_State* L) {
926 | /* Obtain a time_t structure from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_NSTime,`NSTime`>> object. */
927 | #define WSLUA_OPTARG_TvbRange_nstime_ENCODING2 2 /* An optional ENC_* encoding value to use */
928 | TvbRange tvbr = checkTvbRange(L,1);
929 | NSTime nstime;
930 | const unsigned encoding = (unsigned) luaL_optinteger(L, WSLUA_OPTARG_TvbRange_nstime_ENCODING2, 0);
931 |
932 | if ( !(tvbr && tvbr->tvb)) return 0;
933 | if (tvbr->tvb->expired) {
934 | luaL_error(L,"expired tvb");
935 | return 0;
936 | }
937 |
938 | if (encoding & ~ENC_STR_TIME_MASK0x001F0000) {
939 | WSLUA_OPTARG_ERROR(TvbRange_nstime, ENCODING, "invalid encoding value"){ luaL_argerror(L,2, "TvbRange_nstime" ": " "invalid encoding value" ); };
940 | return 0;
941 | }
942 |
943 | nstime = g_new(nstime_t,1)((nstime_t *) g_malloc_n ((1), sizeof (nstime_t)));
944 |
945 | if (encoding == 0) {
946 | if (tvbr->len == 4) {
947 | nstime->secs = tvb_get_ntohl(tvbr->tvb->ws_tvb, tvbr->offset);
948 | nstime->nsecs = 0;
949 | } else if (tvbr->len == 8) {
950 | nstime->secs = tvb_get_ntohl(tvbr->tvb->ws_tvb, tvbr->offset);
951 | nstime->nsecs = tvb_get_ntohl(tvbr->tvb->ws_tvb, tvbr->offset + 4);
952 | } else {
953 | g_free(nstime);
954 | WSLUA_ERROR(TvbRange_nstime,"The range must be 4 or 8 bytes long"){ luaL_error(L, "%s%s", "TvbRange_nstime" ": ", "The range must be 4 or 8 bytes long" ); };
955 | return 0;
956 | }
957 | pushNSTime(L, nstime);
958 | lua_pushinteger(L, tvbr->len);
959 | }
960 | else {
961 | unsigned endoff = 0;
962 | nstime_t *retval = tvb_get_string_time(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len,
963 | encoding, nstime, &endoff);
964 | if (!retval || endoff == 0) {
965 | g_free(nstime);
966 | /* push nil nstime and offset */
967 | lua_pushnil(L);
968 | lua_pushnil(L);
969 | }
970 | else {
971 | pushNSTime(L, nstime);
972 | lua_pushinteger(L, endoff);
973 | }
974 | }
975 |
976 | WSLUA_RETURN(2)return (2); /* The <<lua_class_NSTime,`NSTime`>> object and number of bytes used, or nil on failure. */
977 | }
978 |
979 | WSLUA_METHODstatic int TvbRange_le_nstime(lua_State* L) {
980 | /* Obtain a nstime from a <<lua_class_TvbRange,`TvbRange`>>, as an <<lua_class_NSTime,`NSTime`>> object. */
981 | TvbRange tvbr = checkTvbRange(L,1);
982 | NSTime nstime;
983 |
984 | if ( !(tvbr && tvbr->tvb)) return 0;
985 | if (tvbr->tvb->expired) {
986 | luaL_error(L,"expired tvb");
987 | return 0;
988 | }
989 |
990 | nstime = g_new(nstime_t,1)((nstime_t *) g_malloc_n ((1), sizeof (nstime_t)));
991 |
992 | if (tvbr->len == 4) {
993 | nstime->secs = tvb_get_letohl(tvbr->tvb->ws_tvb, tvbr->offset);
994 | nstime->nsecs = 0;
995 | } else if (tvbr->len == 8) {
996 | nstime->secs = tvb_get_letohl(tvbr->tvb->ws_tvb, tvbr->offset);
997 | nstime->nsecs = tvb_get_letohl(tvbr->tvb->ws_tvb, tvbr->offset + 4);
998 | } else {
999 | g_free(nstime);
1000 | WSLUA_ERROR(TvbRange_nstime,"The range must be 4 or 8 bytes long"){ luaL_error(L, "%s%s", "TvbRange_nstime" ": ", "The range must be 4 or 8 bytes long" ); };
1001 | return 0;
1002 | }
1003 |
1004 | pushNSTime(L, nstime);
1005 |
1006 | WSLUA_RETURN(1)return (1); /* The <<lua_class_NSTime,`NSTime`>> object. */
1007 | }
1008 |
1009 | WSLUA_METHODstatic int TvbRange_string(lua_State* L) {
1010 | /* Obtain a string from a <<lua_class_TvbRange,`TvbRange`>>. */
1011 | #define WSLUA_OPTARG_TvbRange_string_ENCODING2 2 /* The encoding to use. Defaults to ENC_ASCII. */
1012 | TvbRange tvbr = checkTvbRange(L,1);
1013 | unsigned encoding = (unsigned)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_string_ENCODING2, ENC_ASCII0x00000000|ENC_NA0x00000000);
1014 | char * str;
1015 |
1016 | if ( !(tvbr && tvbr->tvb)) return 0;
1017 | if (tvbr->tvb->expired) {
1018 | luaL_error(L,"expired tvb");
1019 | return 0;
1020 | }
1021 |
1022 | str = (char*)tvb_get_string_enc(NULL((void*)0),tvbr->tvb->ws_tvb,tvbr->offset,tvbr->len,encoding);
1023 | lua_pushlstring(L, str, strlen(str));
1024 | wmem_free(NULL((void*)0), str);
1025 |
1026 | WSLUA_RETURN(1)return (1); /* A string containing all bytes in the <<lua_class_TvbRange,`TvbRange`>> including all zeroes (e.g., "a\000bc\000"). */
1027 | }
1028 |
1029 | static int TvbRange_ustring_any(lua_State* L, bool_Bool little_endian) {
1030 | /* Obtain a UTF-16 encoded string from a <<lua_class_TvbRange,`TvbRange`>>. */
1031 | TvbRange tvbr = checkTvbRange(L,1);
1032 | char * str;
1033 |
1034 | if ( !(tvbr && tvbr->tvb)) return 0;
1035 | if (tvbr->tvb->expired) {
1036 | luaL_error(L,"expired tvb");
1037 | return 0;
1038 | }
1039 |
1040 | str = (char*)tvb_get_string_enc(NULL((void*)0),tvbr->tvb->ws_tvb,tvbr->offset,tvbr->len,(little_endian ? ENC_UTF_160x00000004|ENC_LITTLE_ENDIAN0x80000000 : ENC_UTF_160x00000004|ENC_BIG_ENDIAN0x00000000));
1041 | lua_pushlstring(L, str, strlen(str));
1042 | wmem_free(NULL((void*)0), str);
1043 |
1044 | return 1; /* The string */
1045 | }
1046 |
1047 | WSLUA_METHODstatic int TvbRange_ustring(lua_State* L) {
1048 | /* Obtain a Big Endian (network order) UTF-16 encoded string from a <<lua_class_TvbRange,`TvbRange`>>. */
1049 | WSLUA_RETURN(TvbRange_ustring_any(L, false))return (TvbRange_ustring_any(L, 0)); /* A string containing all bytes in the <<lua_class_TvbRange,`TvbRange`>> including all zeroes (e.g., "a\000bc\000"). */
1050 | }
1051 |
1052 | WSLUA_METHODstatic int TvbRange_le_ustring(lua_State* L) {
1053 | /* Obtain a Little Endian UTF-16 encoded string from a <<lua_class_TvbRange,`TvbRange`>>. */
1054 | WSLUA_RETURN(TvbRange_ustring_any(L, true))return (TvbRange_ustring_any(L, 1)); /* A string containing all bytes in the <<lua_class_TvbRange,`TvbRange`>> including all zeroes (e.g., "a\000bc\000"). */
1055 | }
1056 |
1057 | WSLUA_METHODstatic int TvbRange_stringz(lua_State* L) {
1058 | /* Obtain a zero terminated string from a <<lua_class_TvbRange,`TvbRange`>>. */
1059 | #define WSLUA_OPTARG_TvbRange_stringz_ENCODING2 2 /* The encoding to use. Defaults to ENC_ASCII. */
1060 | TvbRange tvbr = checkTvbRange(L,1);
1061 | unsigned encoding = (unsigned)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_stringz_ENCODING2, ENC_ASCII0x00000000|ENC_NA0x00000000);
1062 | char *str = NULL((void*)0);
1063 | unsigned length;
1 | 'length' declared without an initial value | →
1064 | const char* error = NULL((void*)0);
1065 |
1066 | if ( !(tvbr
1.1 | 'tvbr' is non-null
&& tvbr->tvb)) return 0;
2 | ← | Assuming the condition is false | →
3 | ← | Taking false branch | →
1067 | if (tvbr->tvb->expired) {
4 | ← | Assuming field 'expired' is false | →
5 | ← | Taking false branch | →
1068 | luaL_error(L,"expired tvb");
1069 | return 0;
1070 | }
1071 |
1072 | /* XXX - This leaks outside the length of the TvbRange to scan the entire
1073 | * underlying tvbuffer. It has always done that, but that does seem odd. */
1074 | TRY{ except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(& except_sn, &except_ch, catch_spec, 1); if (_setjmp (except_ch .except_jmp)) *(&exc) = &except_ch.except_obj; else * (&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) {
6 | ← | Assuming the condition is true | →
7 | ← | Taking true branch | →
8 | ← | Taking false branch | →
1075 | str = (char*)tvb_get_stringz_enc(NULL((void*)0),tvbr->tvb->ws_tvb,tvbr->offset,&length,encoding);
1076 | } CATCH(DissectorError)if (except_state == 0 && exc != 0 && exc-> except_id.except_code == (6) && (except_state |= 1)) {
9 | ← | Taking false branch | →
10 | ← | Assuming field 'except_code' is equal to 6 | →
11 | ← | Taking true branch | →
1077 | /* Presumably an unsupported encoding */
1078 | error = lua_pushstring(L, GET_MESSAGE((exc)->except_message));
1079 | } CATCH_BOUNDS_ERRORSif (except_state == 0 && exc != 0 && (exc-> except_id.except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (3) || exc->except_id .except_code == (2) || exc->except_id.except_code == (7)) && (except_state|=1)) {
1080 | error = lua_pushstring(L, "Out of bounds");
1081 | } ENDTRYif(!(except_state&1) && exc != 0) except_rethrow( exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };};
1082 |
1083 | if (error) {
12 | ← | Assuming 'error' is null | →
13 | ← | Taking false branch | →
1084 | /* By converting the exceptions into Lua errors, we also add
1085 | * the Lua traceback. */
1086 | WSLUA_ERROR(TvbRange_stringz, lua_tostring(L, 1)){ luaL_error(L, "%s%s", "TvbRange_stringz" ": ", lua_tolstring (L, (1), ((void*)0))); };
1087 | return 0;
1088 | }
1089 |
1090 | lua_pushstring(L, str);
1091 | wmem_free(NULL((void*)0), str);
1092 | lua_pushinteger(L, length);
14 | ← | 2nd function call argument is an uninitialized value
1093 |
1094 | WSLUA_RETURN(2)return (2); /* The string containing all bytes in the <<lua_class_TvbRange,`TvbRange`>> up to the first terminating zero, and the length of that string. */
1095 | }
1096 |
1097 | WSLUA_METHODstatic int TvbRange_strsize(lua_State* L) {
1098 | /*
1099 | Find the size of a zero terminated string from a <<lua_class_TvbRange,`TvbRange`>>.
1100 | The size of the string includes the terminating zero. */
1101 | #define WSLUA_OPTARG_TvbRange_strsize_ENCODING2 2 /* The encoding to use. Defaults to ENC_ASCII. */
1102 | TvbRange tvbr = checkTvbRange(L,1);
1103 | unsigned encoding = (unsigned)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_strsize_ENCODING2, ENC_ASCII0x00000000|ENC_NA0x00000000);
1104 | const char* error = NULL((void*)0);
1105 |
1106 | if ( !(tvbr && tvbr->tvb)) return 0;
1107 | if (tvbr->tvb->expired) {
1108 | luaL_error(L,"expired tvb");
1109 | return 0;
1110 | }
1111 |
1112 | /* XXX - This leaks outside the length of the TvbRange to scan the entire
1113 | * underlying tvbuffer. It has always done that, but that does seem odd. */
1114 | TRY{ except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(& except_sn, &except_ch, catch_spec, 1); if (_setjmp (except_ch .except_jmp)) *(&exc) = &except_ch.except_obj; else * (&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) {
1115 | lua_pushinteger(L, tvb_strsize_enc(tvbr->tvb->ws_tvb, tvbr->offset, encoding));
1116 | } CATCH(DissectorError)if (except_state == 0 && exc != 0 && exc-> except_id.except_code == (6) && (except_state |= 1)) {
1117 | /* Presumably an unsupported encoding */
1118 | error = lua_pushstring(L, GET_MESSAGE((exc)->except_message));
1119 | } CATCH_BOUNDS_ERRORSif (except_state == 0 && exc != 0 && (exc-> except_id.except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (3) || exc->except_id .except_code == (2) || exc->except_id.except_code == (7)) && (except_state|=1)) {
1120 | error = lua_pushstring(L, "Out of bounds");
1121 | } ENDTRYif(!(except_state&1) && exc != 0) except_rethrow( exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };};
1122 |
1123 | if (error) {
1124 | /* By converting the exceptions into Lua errors, we also add
1125 | * the Lua traceback. */
1126 | WSLUA_ERROR(TvbRange_strsize, lua_tostring(L, 1)){ luaL_error(L, "%s%s", "TvbRange_strsize" ": ", lua_tolstring (L, (1), ((void*)0))); };
1127 | return 0;
1128 | }
1129 |
1130 | WSLUA_RETURN(1)return (1); /* Length of the zero terminated string. */
1131 | }
1132 |
1133 |
1134 | static int TvbRange_ustringz_any(lua_State* L, bool_Bool little_endian) {
1135 | /* Obtain a zero terminated string from a TvbRange */
1136 | unsigned count;
1137 | TvbRange tvbr = checkTvbRange(L,1);
1138 | int offset;
1139 | gunichar2 uchar;
1140 | char *str;
1141 |
1142 | if ( !(tvbr && tvbr->tvb)) return 0;
1143 | if (tvbr->tvb->expired) {
1144 | luaL_error(L,"expired tvb");
1145 | return 0;
1146 | }
1147 |
1148 | offset = tvbr->offset;
1149 | do {
1150 | if (!tvb_bytes_exist (tvbr->tvb->ws_tvb, offset, 2)) {
1151 | luaL_error(L,"out of bounds");
1152 | return 0;
1153 | }
1154 | /* Endianness doesn't matter when looking for null */
1155 | uchar = tvb_get_ntohs (tvbr->tvb->ws_tvb, offset);
1156 | offset += 2;
1157 | } while (uchar != 0);
1158 |
1159 | str = (char*)tvb_get_stringz_enc(NULL((void*)0),tvbr->tvb->ws_tvb,tvbr->offset,&count,
1160 | (little_endian ? ENC_UTF_160x00000004|ENC_LITTLE_ENDIAN0x80000000 : ENC_UTF_160x00000004|ENC_BIG_ENDIAN0x00000000));
1161 | lua_pushstring(L, str);
1162 | lua_pushinteger(L,count);
1163 | wmem_free(NULL((void*)0), str);
1164 |
1165 | return 2; /* The zero terminated string, the length found in tvbr */
1166 | }
1167 |
1168 | WSLUA_METHODstatic int TvbRange_ustringz(lua_State* L) {
1169 | /* Obtain a Big Endian (network order) UTF-16 encoded zero terminated string from a <<lua_class_TvbRange,`TvbRange`>>. */
1170 | WSLUA_RETURN(TvbRange_ustringz_any(L, false))return (TvbRange_ustringz_any(L, 0)); /* Two return values: the zero terminated string, and the length. */
1171 | }
1172 |
1173 | WSLUA_METHODstatic int TvbRange_le_ustringz(lua_State* L) {
1174 | /* Obtain a Little Endian UTF-16 encoded zero terminated string from a TvbRange */
1175 | WSLUA_RETURN(TvbRange_ustringz_any(L, true))return (TvbRange_ustringz_any(L, 1)); /* Two return values: the zero terminated string, and the length. */
1176 | }
1177 |
1178 | WSLUA_METHODstatic int TvbRange_bytes(lua_State* L) {
1179 | /* Obtain a <<lua_class_ByteArray,`ByteArray`>> from a <<lua_class_TvbRange,`TvbRange`>>.
1180 |
1181 | Starting in 1.11.4, this function also takes an optional `encoding` argument,
1182 | which can be set to `ENC_STR_HEX` to decode a hex-string from the <<lua_class_TvbRange,`TvbRange`>>
1183 | into the returned <<lua_class_ByteArray,`ByteArray`>>. The `encoding` can be bitwise-or'ed with one
1184 | or more separator encodings, such as `ENC_SEP_COLON`, to allow separators
1185 | to occur between each pair of hex characters.
1186 |
1187 | The return value also now returns the number of bytes used as a second return value.
1188 |
1189 | On failure or error, nil is returned for both return values.
1190 |
1191 | [NOTE]
1192 | ====
1193 | The encoding type of the hex string should also be set, for example
1194 | `ENC_ASCII` or `ENC_UTF_8`, along with `ENC_STR_HEX`.
1195 | ====
1196 | */
1197 | #define WSLUA_OPTARG_TvbRange_bytes_ENCODING2 2 /* An optional ENC_* encoding value to use */
1198 | TvbRange tvbr = checkTvbRange(L,1);
1199 | GByteArray* ba;
1200 | uint8_t* raw;
1201 | const unsigned encoding = (unsigned)luaL_optinteger(L, WSLUA_OPTARG_TvbRange_bytes_ENCODING2, 0);
1202 |
1203 |
1204 | if ( !(tvbr && tvbr->tvb)) return 0;
1205 | if (tvbr->tvb->expired) {
1206 | luaL_error(L,"expired tvb");
1207 | return 0;
1208 | }
1209 |
1210 | if (encoding == 0) {
1211 | ba = g_byte_array_new();
1212 | raw = (uint8_t *)tvb_memdup(NULL((void*)0),tvbr->tvb->ws_tvb,tvbr->offset,tvbr->len);
1213 | g_byte_array_append(ba,raw,tvbr->len);
1214 | wmem_free(NULL((void*)0), raw);
1215 | pushByteArray(L,ba);
1216 | lua_pushinteger(L, tvbr->len);
1217 | }
1218 | else if ((encoding & ENC_STR_HEX0x02000000) == 0) {
1219 | WSLUA_OPTARG_ERROR(TvbRange_nstime, ENCODING, "invalid encoding value"){ luaL_argerror(L,2, "TvbRange_nstime" ": " "invalid encoding value" ); };
1220 | }
1221 | else {
1222 | unsigned endoff = 0;
1223 | GByteArray* retval;
1224 |
1225 | ba = g_byte_array_new();
1226 | retval = tvb_get_string_bytes(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len,
1227 | encoding, ba, &endoff);
1228 | if (!retval || endoff == 0) {
1229 | g_byte_array_free(ba, true1);
1230 | /* push nil nstime and offset */
1231 | lua_pushnil(L);
1232 | lua_pushnil(L);
1233 | }
1234 | else {
1235 | pushByteArray(L,ba);
1236 | lua_pushinteger(L, endoff);
1237 | }
1238 | }
1239 |
1240 | WSLUA_RETURN(2)return (2); /* The <<lua_class_ByteArray,`ByteArray`>> object or nil, and number of bytes consumed or nil. */
1241 | }
1242 |
1243 | WSLUA_METHODstatic int TvbRange_bitfield(lua_State* L) {
1244 | /* Get a bitfield from a <<lua_class_TvbRange,`TvbRange`>>. */
1245 | #define WSLUA_OPTARG_TvbRange_bitfield_POSITION2 2 /* The bit offset (link:https://en.wikipedia.org/wiki/Bit_numbering#MSB_0_bit_numbering[MSB 0 bit numbering]) from the beginning of the <<lua_class_TvbRange,`TvbRange`>>. Defaults to 0. */
1246 | #define WSLUA_OPTARG_TvbRange_bitfield_LENGTH3 3 /* The length in bits of the field. Defaults to 1. */
1247 |
1248 | TvbRange tvbr = checkTvbRange(L,1);
1249 | unsigned pos = (unsigned)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_bitfield_POSITION2,0);
1250 | unsigned len = (unsigned)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_bitfield_LENGTH3,1);
1251 |
1252 | if (!(tvbr && tvbr->tvb)) return 0;
1253 | if (tvbr->tvb->expired) {
1254 | luaL_error(L,"expired tvb");
1255 | return 0;
1256 | }
1257 |
1258 | if ((pos+len) > (tvbr->len<<3)) {
1259 | luaL_error(L, "Requested bitfield out of range");
1260 | return 0;
1261 | }
1262 |
1263 | if (len <= 32) {
1264 | /* XXX - If LUA_INTEGER_SIZE is 4 (on Lua 5.3/5.4 it's usually 8), then
1265 | * for len == 32 an unsigned won't necessarily fit in a lua_Integer.
1266 | * Should we use a UInt64 then?
1267 | */
1268 | WRAP_NON_LUA_EXCEPTIONS({ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { lua_pushinteger(L,tvb_get_bits32 (tvbr->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if (except_state == 0 && exc != 0 && (exc-> except_id.except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && ( except_state|=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree ->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1269 | lua_pushinteger(L,tvb_get_bits32(tvbr->tvb->ws_tvb,tvbr->offset*8 + pos, len, false));{ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { lua_pushinteger(L,tvb_get_bits32 (tvbr->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if (except_state == 0 && exc != 0 && (exc-> except_id.except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && ( except_state|=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree ->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1270 | ){ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { lua_pushinteger(L,tvb_get_bits32 (tvbr->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if (except_state == 0 && exc != 0 && (exc-> except_id.except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && ( except_state|=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree ->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1271 | } else if (len <= 64) {
1272 | WRAP_NON_LUA_EXCEPTIONS({ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { pushUInt64(L,tvb_get_bits64(tvbr ->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if ( except_state == 0 && exc != 0 && (exc->except_id .except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1273 | pushUInt64(L,tvb_get_bits64(tvbr->tvb->ws_tvb,tvbr->offset*8 + pos, len, false));{ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { pushUInt64(L,tvb_get_bits64(tvbr ->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if ( except_state == 0 && exc != 0 && (exc->except_id .except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1274 | ){ volatile _Bool has_error = 0; { except_t *volatile exc; volatile int except_state = 0; static const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode except_sn; struct except_catch except_ch; except_setup_try(&except_sn, &except_ch, catch_spec , 1); if (_setjmp (except_ch.except_jmp)) *(&exc) = & except_ch.except_obj; else *(&exc) = 0; if(except_state & 1) except_state |= 2; except_state &= ~1; if (except_state == 0 && exc == 0) { pushUInt64(L,tvb_get_bits64(tvbr ->tvb->ws_tvb,tvbr->offset*8 + pos, len, 0)); } if ( except_state == 0 && exc != 0 && (exc->except_id .except_code == (1) || exc->except_id.except_code == (4) || exc->except_id.except_code == (7)) && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); } if (except_state == 0 && exc != 0 && (except_state |=1)) { show_exception(lua_tvb, lua_pinfo, lua_tree->tree, ((exc)->except_id.except_code), ((exc)->except_message )); lua_pushfstring(L, "%s: %s", __func__, ((exc)->except_message ) ? ((exc)->except_message) : "Malformed packet"); has_error = 1; } if(!(except_state&1) && exc != 0) except_rethrow (exc); except_free(except_ch.except_obj.except_dyndata); except_pop (); };}; if (has_error) { lua_error(L); } }
1275 | } else {
1276 | luaL_error(L,"TvbRange:bitfield() does not handle %d bits",len);
1277 | return 0;
1278 | }
1279 |
1280 | WSLUA_RETURN(1)return (1); /* The bitfield value */
1281 | }
1282 |
1283 | WSLUA_METHODstatic int TvbRange_range(lua_State* L) {
1284 | /* Creates a sub-<<lua_class_TvbRange,`TvbRange`>> from this <<lua_class_TvbRange,`TvbRange`>>. */
1285 | #define WSLUA_OPTARG_TvbRange_range_OFFSET2 2 /* The offset (in octets) from the beginning of the <<lua_class_TvbRange,`TvbRange`>>. Defaults to 0. */
1286 | #define WSLUA_OPTARG_TvbRange_range_LENGTH3 3 /* The length (in octets) of the range. Defaults to until the end of the <<lua_class_TvbRange,`TvbRange`>>. */
1287 |
1288 | TvbRange tvbr = checkTvbRange(L,1);
1289 | int offset = (int)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_range_OFFSET2,0);
1290 | int len = (int)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_range_LENGTH3,-1);
1291 |
1292 | if (!(tvbr && tvbr->tvb)) return 0;
1293 | if (tvbr->tvb->expired) {
1294 | luaL_error(L,"expired tvb");
1295 | return 0;
1296 | }
1297 |
1298 | if (offset < 0) {
1299 | WSLUA_OPTARG_ERROR(TvbRange_range,OFFSET,"offset before start of TvbRange"){ luaL_argerror(L,2, "TvbRange_range" ": " "offset before start of TvbRange" ); };
1300 | return 0;
1301 | }
1302 | if ((unsigned)offset > tvbr->len) {
1303 | WSLUA_OPTARG_ERROR(TvbRange_range,OFFSET,"offset beyond end of TvbRange"){ luaL_argerror(L,2, "TvbRange_range" ": " "offset beyond end of TvbRange" ); };
1304 | return 0;
1305 | }
1306 |
1307 | if (len == -1) {
1308 | len = tvbr->len - offset;
1309 | }
1310 | if (len < 0) {
1311 | luaL_error(L,"out of bounds");
1312 | return 0;
1313 | } else if ( (unsigned)(len + offset) > tvbr->len) {
1314 | luaL_error(L,"Range is out of bounds");
1315 | return 0;
1316 | }
1317 |
1318 | if (push_TvbRange(L,tvbr->tvb->ws_tvb,tvbr->offset+offset,len)) {
1319 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1320 | }
1321 |
1322 | return 0;
1323 | }
1324 |
1325 | WSLUA_METHODstatic int TvbRange_uncompress_zlib(lua_State* L) {
1326 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing zlib compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1327 | @since 4.3.0
1328 | */
1329 | #define WSLUA_ARG_TvbRange_uncompress_zlib_NAME2 2 /* The name to be given to the new data-source. */
1330 | TvbRange tvbr = checkTvbRange(L,1);
1331 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG)
1332 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_zlib_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1333 | tvbuff_t *uncompr_tvb;
1334 | #endif
1335 |
1336 | if (!(tvbr && tvbr->tvb)) return 0;
1337 |
1338 | if (tvbr->tvb->expired) {
1339 | luaL_error(L,"expired tvb");
1340 | return 0;
1341 | }
1342 |
1343 | #if defined (HAVE_ZLIB1) || defined (HAVE_ZLIBNG)
1344 | uncompr_tvb = tvb_child_uncompress_zlib(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1345 | if (uncompr_tvb) {
1346 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1347 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1348 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1349 | }
1350 | }
1351 | #else
1352 | luaL_error(L,"Missing support for ZLIB");
1353 | #endif
1354 |
1355 | return 0;
1356 | }
1357 |
1358 | WSLUA_METHODstatic int TvbRange_uncompress(lua_State* L) {
1359 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing zlib compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data. Deprecated; use tvbrange:uncompress_zlib() instead. */
1360 | #define WSLUA_ARG_TvbRange_uncompress_NAME2 2 /* The name to be given to the new data-source. */
1361 | return TvbRange_uncompress_zlib(L);
1362 | }
1363 |
1364 | /* Gets registered as metamethod automatically by WSLUA_REGISTER_CLASS/META */
1365 | static int TvbRange__gc(lua_State* L) {
1366 | TvbRange tvbr = checkTvbRange(L,1);
1367 |
1368 | free_TvbRange(tvbr);
1369 |
1370 | return 0;
1371 |
1372 | }
1373 |
1374 | WSLUA_METHODstatic int TvbRange_uncompress_brotli(lua_State* L) {
1375 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Brotli compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1376 | @since 4.3.0
1377 | */
1378 | #define WSLUA_ARG_TvbRange_uncompress_brotli_NAME2 2 /* The name to be given to the new data-source. */
1379 | TvbRange tvbr = checkTvbRange(L,1);
1380 | #ifdef HAVE_BROTLI1
1381 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_brotli_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1382 | tvbuff_t *uncompr_tvb;
1383 | #endif
1384 |
1385 | if (!(tvbr && tvbr->tvb)) return 0;
1386 |
1387 | if (tvbr->tvb->expired) {
1388 | luaL_error(L,"expired tvb");
1389 | return 0;
1390 | }
1391 |
1392 | #ifdef HAVE_BROTLI1
1393 | uncompr_tvb = tvb_child_uncompress_brotli(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1394 | if (uncompr_tvb) {
1395 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1396 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1397 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1398 | }
1399 | }
1400 | #else
1401 | luaL_error(L,"Missing support for Brotli");
1402 | #endif
1403 |
1404 | return 0;
1405 | }
1406 |
1407 | WSLUA_METHODstatic int TvbRange_uncompress_hpack_huff(lua_State* L) {
1408 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing data compressed using the Huffman encoding in HTTP/2 HPACK and HTTP/3 QPACK, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1409 | @since 4.3.0
1410 | */
1411 | #define WSLUA_ARG_TvbRange_uncompress_hpack_huff_NAME2 2 /* The name to be given to the new data-source. */
1412 | TvbRange tvbr = checkTvbRange(L,1);
1413 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_hpack_huff_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1414 | tvbuff_t *uncompr_tvb;
1415 |
1416 | if (!(tvbr && tvbr->tvb)) return 0;
1417 |
1418 | if (tvbr->tvb->expired) {
1419 | luaL_error(L,"expired tvb");
1420 | return 0;
1421 | }
1422 |
1423 | uncompr_tvb = tvb_child_uncompress_hpack_huff(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1424 | if (uncompr_tvb) {
1425 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1426 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1427 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1428 | }
1429 | }
1430 |
1431 | return 0;
1432 | }
1433 |
1434 | WSLUA_METHODstatic int TvbRange_uncompress_lz77(lua_State* L) {
1435 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Microsoft Plain LZ77 compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1436 | @since 4.3.0
1437 | */
1438 | #define WSLUA_ARG_TvbRange_uncompress_lz77_NAME2 2 /* The name to be given to the new data-source. */
1439 | TvbRange tvbr = checkTvbRange(L,1);
1440 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_lz77_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1441 | tvbuff_t *uncompr_tvb;
1442 |
1443 | if (!(tvbr && tvbr->tvb)) return 0;
1444 |
1445 | if (tvbr->tvb->expired) {
1446 | luaL_error(L,"expired tvb");
1447 | return 0;
1448 | }
1449 |
1450 | uncompr_tvb = tvb_child_uncompress_lz77(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1451 | if (uncompr_tvb) {
1452 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1453 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1454 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1455 | }
1456 | }
1457 |
1458 | return 0;
1459 | }
1460 |
1461 | WSLUA_METHODstatic int TvbRange_uncompress_lz77huff(lua_State* L) {
1462 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Microsoft LZ77+Huffman compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1463 | @since 4.3.0
1464 | */
1465 | #define WSLUA_ARG_TvbRange_uncompress_lz77huff_NAME2 2 /* The name to be given to the new data-source. */
1466 | TvbRange tvbr = checkTvbRange(L,1);
1467 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_lz77huff_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1468 | tvbuff_t *uncompr_tvb;
1469 |
1470 | if (!(tvbr && tvbr->tvb)) return 0;
1471 |
1472 | if (tvbr->tvb->expired) {
1473 | luaL_error(L,"expired tvb");
1474 | return 0;
1475 | }
1476 |
1477 | uncompr_tvb = tvb_child_uncompress_lz77huff(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1478 | if (uncompr_tvb) {
1479 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1480 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1481 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1482 | }
1483 | }
1484 |
1485 | return 0;
1486 | }
1487 |
1488 | WSLUA_METHODstatic int TvbRange_uncompress_lznt1(lua_State* L) {
1489 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Microsoft LZNT1 compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1490 | @since 4.3.0
1491 | */
1492 | #define WSLUA_ARG_TvbRange_uncompress_lznt1_NAME2 2 /* The name to be given to the new data-source. */
1493 | TvbRange tvbr = checkTvbRange(L,1);
1494 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_lznt1_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1495 | tvbuff_t *uncompr_tvb;
1496 |
1497 | if (!(tvbr && tvbr->tvb)) return 0;
1498 |
1499 | if (tvbr->tvb->expired) {
1500 | luaL_error(L,"expired tvb");
1501 | return 0;
1502 | }
1503 |
1504 | uncompr_tvb = tvb_child_uncompress_lznt1(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1505 | if (uncompr_tvb) {
1506 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1507 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1508 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1509 | }
1510 | }
1511 |
1512 | return 0;
1513 | }
1514 |
1515 | WSLUA_METHODstatic int TvbRange_uncompress_snappy(lua_State* L) {
1516 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Snappy compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1517 | @since 4.3.0
1518 | */
1519 | #define WSLUA_ARG_TvbRange_uncompress_snappy_NAME2 2 /* The name to be given to the new data-source. */
1520 | TvbRange tvbr = checkTvbRange(L,1);
1521 | #ifdef HAVE_SNAPPY1
1522 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_snappy_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1523 | tvbuff_t *uncompr_tvb;
1524 | #endif
1525 |
1526 | if (!(tvbr && tvbr->tvb)) return 0;
1527 |
1528 | if (tvbr->tvb->expired) {
1529 | luaL_error(L,"expired tvb");
1530 | return 0;
1531 | }
1532 |
1533 | #ifdef HAVE_SNAPPY1
1534 | uncompr_tvb = tvb_child_uncompress_snappy(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1535 | if (uncompr_tvb) {
1536 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1537 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1538 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1539 | }
1540 | }
1541 | #else
1542 | luaL_error(L,"Missing support for Snappy");
1543 | #endif
1544 |
1545 | return 0;
1546 | }
1547 |
1548 | WSLUA_METHODstatic int TvbRange_uncompress_zstd(lua_State* L) {
1549 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Zstandard compressed data, decompresses the data and returns a new <<lua_class_TvbRange,`TvbRange`>> containing the uncompressed data.
1550 | @since 4.3.0
1551 | */
1552 | #define WSLUA_ARG_TvbRange_uncompress_zstd_NAME2 2 /* The name to be given to the new data-source. */
1553 | TvbRange tvbr = checkTvbRange(L,1);
1554 | #ifdef HAVE_ZSTD1
1555 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_uncompress_zstd_NAME,"Uncompressed")(luaL_optlstring(L, (2), ("Uncompressed"), ((void*)0)));
1556 | tvbuff_t *uncompr_tvb;
1557 | #endif
1558 |
1559 | if (!(tvbr && tvbr->tvb)) return 0;
1560 |
1561 | if (tvbr->tvb->expired) {
1562 | luaL_error(L,"expired tvb");
1563 | return 0;
1564 | }
1565 |
1566 | #ifdef HAVE_ZSTD1
1567 | uncompr_tvb = tvb_child_uncompress_zstd(tvbr->tvb->ws_tvb, tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1568 | if (uncompr_tvb) {
1569 | add_new_data_source (lua_pinfo, uncompr_tvb, name);
1570 | if (push_TvbRange(L,uncompr_tvb,0,tvb_captured_length(uncompr_tvb))) {
1571 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1572 | }
1573 | }
1574 | #else
1575 | luaL_error(L,"Missing support for ZStandard");
1576 | #endif
1577 |
1578 | return 0;
1579 | }
1580 |
1581 | WSLUA_METHODstatic int TvbRange_decode_base64(lua_State* L) {
1582 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing Base64 encoded data, return a new <<lua_class_TvbRange,`TvbRange`>> containing the decoded data.
1583 | @since 4.3.0
1584 | */
1585 | #define WSLUA_ARG_TvbRange_decode_base64_NAME2 2 /* The name to be given to the new data-source. */
1586 | TvbRange tvbr = checkTvbRange(L,1);
1587 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_decode_base64_NAME,"Decoded")(luaL_optlstring(L, (2), ("Decoded"), ((void*)0)));
1588 | tvbuff_t *decoded_tvb;
1589 |
1590 | if (!(tvbr && tvbr->tvb)) return 0;
1591 |
1592 | if (tvbr->tvb->expired) {
1593 | luaL_error(L,"expired tvb");
1594 | return 0;
1595 | }
1596 |
1597 | decoded_tvb = base64_tvb_to_new_tvb(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1598 | if (decoded_tvb) {
1599 | add_new_data_source (lua_pinfo, decoded_tvb, name);
1600 | if (push_TvbRange(L,decoded_tvb,0,tvb_captured_length(decoded_tvb))) {
1601 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1602 | }
1603 | }
1604 |
1605 | return 0;
1606 | }
1607 |
1608 | WSLUA_METHODstatic int TvbRange_decode_base64url(lua_State* L) {
1609 | /* Given a <<lua_class_TvbRange,`TvbRange`>> containing base64url encoded data, return a new <<lua_class_TvbRange,`TvbRange`>> containing the decoded data.
1610 | @since 4.3.0
1611 | */
1612 | #define WSLUA_ARG_TvbRange_decode_base64url_NAME2 2 /* The name to be given to the new data-source. */
1613 | TvbRange tvbr = checkTvbRange(L,1);
1614 | const char* name = luaL_optstring(L,WSLUA_ARG_TvbRange_decode_base64url_NAME,"Decoded")(luaL_optlstring(L, (2), ("Decoded"), ((void*)0)));
1615 | tvbuff_t *decoded_tvb;
1616 |
1617 | if (!(tvbr && tvbr->tvb)) return 0;
1618 |
1619 | if (tvbr->tvb->expired) {
1620 | luaL_error(L,"expired tvb");
1621 | return 0;
1622 | }
1623 |
1624 | decoded_tvb = base64uri_tvb_to_new_tvb(tvbr->tvb->ws_tvb, tvbr->offset, tvbr->len);
1625 | if (decoded_tvb) {
1626 | add_new_data_source (lua_pinfo, decoded_tvb, name);
1627 | if (push_TvbRange(L,decoded_tvb,0,tvb_captured_length(decoded_tvb))) {
1628 | WSLUA_RETURN(1)return (1); /* The <<lua_class_TvbRange,`TvbRange`>>. */
1629 | }
1630 | }
1631 |
1632 | return 0;
1633 | }
1634 |
1635 | WSLUA_METHODstatic int TvbRange_len(lua_State* L) {
1636 | /* Obtain the length of a <<lua_class_TvbRange,`TvbRange`>>. */
1637 | TvbRange tvbr = checkTvbRange(L,1);
1638 |
1639 | if (!(tvbr && tvbr->tvb)) return 0;
1640 | if (tvbr->tvb->expired) {
1641 | luaL_error(L,"expired tvb");
1642 | return 0;
1643 | }
1644 | lua_pushinteger(L,(lua_Integer)tvbr->len);
1645 | return 1;
1646 | }
1647 |
1648 | WSLUA_METHODstatic int TvbRange_offset(lua_State* L) {
1649 | /* Obtain the offset in a <<lua_class_TvbRange,`TvbRange`>>. */
1650 | TvbRange tvbr = checkTvbRange(L,1);
1651 |
1652 | if (!(tvbr && tvbr->tvb)) return 0;
1653 | if (tvbr->tvb->expired) {
1654 | luaL_error(L,"expired tvb");
1655 | return 0;
1656 | }
1657 | lua_pushinteger(L,(lua_Integer)tvbr->offset);
1658 | return 1;
1659 | }
1660 |
1661 | WSLUA_METHODstatic int TvbRange_raw(lua_State* L) {
1662 | /* Obtain a Lua string of the binary bytes in a <<lua_class_TvbRange,`TvbRange`>>. */
1663 | #define WSLUA_OPTARG_TvbRange_raw_OFFSET2 2 /* The position of the first byte within the range. Default is 0, or first byte. */
1664 | #define WSLUA_OPTARG_TvbRange_raw_LENGTH3 3 /* The length of the segment to get. Default is -1, or the remaining bytes in the range. */
1665 | TvbRange tvbr = checkTvbRange(L,1);
1666 | int offset = (int)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_raw_OFFSET2,0);
1667 | int len = (int)luaL_optinteger(L,WSLUA_OPTARG_TvbRange_raw_LENGTH3,-1);
1668 |
1669 | if (!tvbr || !tvbr->tvb) return 0;
1670 | if (tvbr->tvb->expired) {
1671 | luaL_error(L,"expired tvb");
1672 | return 0;
1673 | }
1674 |
1675 | if (offset < 0) {
1676 | WSLUA_OPTARG_ERROR(TvbRange_raw,OFFSET,"offset before start of TvbRange"){ luaL_argerror(L,2, "TvbRange_raw" ": " "offset before start of TvbRange" ); };
1677 | return 0;
1678 | }
1679 | if ((unsigned)offset > tvbr->len) {
1680 | WSLUA_OPTARG_ERROR(TvbRange_raw,OFFSET,"offset beyond end of TvbRange"){ luaL_argerror(L,2, "TvbRange_raw" ": " "offset beyond end of TvbRange" ); };
1681 | return 0;
1682 | }
1683 |
1684 | if (len == -1) {
1685 | len = tvbr->len - offset;
1686 | }
1687 | if (len < 0) {
1688 | luaL_error(L,"out of bounds");
1689 | return false0;
1690 | } else if ( (unsigned)(len + offset) > tvbr->len) {
1691 | luaL_error(L,"Range is out of bounds");
1692 | return false0;
1693 | }
1694 |
1695 | lua_pushlstring(L, (const char*)tvb_get_ptr(tvbr->tvb->ws_tvb, tvbr->offset+offset, len), len);
1696 |
1697 | WSLUA_RETURN(1)return (1); /* A Lua string of the binary bytes in the <<lua_class_TvbRange,`TvbRange`>>. */
1698 | }
1699 |
1700 | /* WSLUA_ATTRIBUTE TvbRange_length RO The length (in bytes) of the range.
1701 | Mirrors `range:len()`. */
1702 | WSLUA_ATTRIBUTE_GET(TvbRange,length, {static int TvbRange_get_length (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj-> len);} return 1; } typedef void __dummyTvbRange_get_length
1703 | lua_pushinteger(L, (lua_Integer)obj->len);static int TvbRange_get_length (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj-> len);} return 1; } typedef void __dummyTvbRange_get_length
1704 | })static int TvbRange_get_length (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj-> len);} return 1; } typedef void __dummyTvbRange_get_length;
1705 |
1706 | /* WSLUA_ATTRIBUTE TvbRange_position RO The offset within the parent Tvb at
1707 | which the range starts. Mirrors `range:offset()`. */
1708 | WSLUA_ATTRIBUTE_GET(TvbRange,position, {static int TvbRange_get_position (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj ->offset);} return 1; } typedef void __dummyTvbRange_get_position
1709 | lua_pushinteger(L, (lua_Integer)obj->offset);static int TvbRange_get_position (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj ->offset);} return 1; } typedef void __dummyTvbRange_get_position
1710 | })static int TvbRange_get_position (lua_State* L) { TvbRange obj = checkTvbRange (L,1); { lua_pushinteger(L, (lua_Integer)obj ->offset);} return 1; } typedef void __dummyTvbRange_get_position;
1711 |
1712 | WSLUA_METAMETHODstatic int TvbRange__eq(lua_State* L) {
1713 | /* Checks whether the contents of two <<lua_class_TvbRange,`TvbRange`>>s are equal. */
1714 | TvbRange tvb_l = checkTvbRange(L,1);
1715 | TvbRange tvb_r = checkTvbRange(L,2);
1716 |
1717 | /* it is not an error if their ds_tvb are different... they're just not equal */
1718 | if (tvb_l->len == tvb_r->len &&
1719 | tvb_l->len <= tvb_captured_length_remaining(tvb_l->tvb->ws_tvb, tvb_l->offset) &&
1720 | tvb_r->len <= tvb_captured_length_remaining(tvb_r->tvb->ws_tvb, tvb_r->offset))
1721 | {
1722 | const char* lp = (const char*)tvb_get_ptr(tvb_l->tvb->ws_tvb, tvb_l->offset, tvb_l->len);
1723 | const char* rp = (const char*)tvb_get_ptr(tvb_r->tvb->ws_tvb, tvb_r->offset, tvb_r->len);
1724 | unsigned i = 0;
1725 |
1726 | for (; i < tvb_r->len; ++i) {
1727 | if (lp[i] != rp[i]) {
1728 | lua_pushboolean(L,0);
1729 | return 1;
1730 | }
1731 | }
1732 | lua_pushboolean(L,1);
1733 | } else {
1734 | lua_pushboolean(L,0);
1735 | }
1736 |
1737 | return 1;
1738 | }
1739 |
1740 | WSLUA_METAMETHODstatic int TvbRange__tostring(lua_State* L) {
1741 | /*
1742 | Converts the <<lua_class_TvbRange,`TvbRange`>> into a string of
1743 | the form `TvbRange: offset=<O> length=<L> bytes=<hex>`. The hex
1744 | preview is truncated by `tvb_bytes_to_str` to a small number of
1745 | bytes so the rendering stays useful in the debugger Variables
1746 | view and in `print()` for large ranges. Empty ranges render as
1747 | `TvbRange: offset=<O> length=0 (empty)`.
1748 | */
1749 | TvbRange tvbr = checkTvbRange(L,1);
1750 |
1751 | if (!(tvbr && tvbr->tvb)) return 0;
1752 | if (tvbr->tvb->expired) {
1753 | luaL_error(L,"expired tvb");
1754 | return 0;
1755 | }
1756 |
1757 | if (tvbr->len == 0) {
1758 | lua_pushfstring(L, "TvbRange: offset=%d length=0 (empty)",
1759 | tvbr->offset);
1760 | } else {
1761 | char *str = tvb_bytes_to_str(NULL((void*)0), tvbr->tvb->ws_tvb,
1762 | tvbr->offset, tvbr->len);
1763 | lua_pushfstring(L, "TvbRange: offset=%d length=%d bytes=%s",
1764 | tvbr->offset, tvbr->len, str ? str : "");
1765 | wmem_free(NULL((void*)0), str);
1766 | }
1767 |
1768 | WSLUA_RETURN(1)return (1); /* A short label including the offset, length,
1769 | and a truncated hex preview. */
1770 | }
1771 |
1772 | WSLUA_METHODSstatic const luaL_Reg TvbRange_methods[] = {
1773 | WSLUA_CLASS_FNREG(TvbRange,uint){ "uint", TvbRange_uint },
1774 | WSLUA_CLASS_FNREG(TvbRange,le_uint){ "le_uint", TvbRange_le_uint },
1775 | WSLUA_CLASS_FNREG(TvbRange,int){ "int", TvbRange_int },
1776 | WSLUA_CLASS_FNREG(TvbRange,le_int){ "le_int", TvbRange_le_int },
1777 | WSLUA_CLASS_FNREG(TvbRange,uint64){ "uint64", TvbRange_uint64 },
1778 | WSLUA_CLASS_FNREG(TvbRange,le_uint64){ "le_uint64", TvbRange_le_uint64 },
1779 | WSLUA_CLASS_FNREG(TvbRange,int64){ "int64", TvbRange_int64 },
1780 | WSLUA_CLASS_FNREG(TvbRange,le_int64){ "le_int64", TvbRange_le_int64 },
1781 | WSLUA_CLASS_FNREG(TvbRange,float){ "float", TvbRange_float },
1782 | WSLUA_CLASS_FNREG(TvbRange,le_float){ "le_float", TvbRange_le_float },
1783 | WSLUA_CLASS_FNREG(TvbRange,ether){ "ether", TvbRange_ether },
1784 | WSLUA_CLASS_FNREG(TvbRange,ipv4){ "ipv4", TvbRange_ipv4 },
1785 | WSLUA_CLASS_FNREG(TvbRange,le_ipv4){ "le_ipv4", TvbRange_le_ipv4 },
1786 | WSLUA_CLASS_FNREG(TvbRange,ipv6){ "ipv6", TvbRange_ipv6 },
1787 | WSLUA_CLASS_FNREG(TvbRange,nstime){ "nstime", TvbRange_nstime },
1788 | WSLUA_CLASS_FNREG(TvbRange,le_nstime){ "le_nstime", TvbRange_le_nstime },
1789 | WSLUA_CLASS_FNREG(TvbRange,string){ "string", TvbRange_string },
1790 | WSLUA_CLASS_FNREG(TvbRange,stringz){ "stringz", TvbRange_stringz },
1791 | WSLUA_CLASS_FNREG(TvbRange,strsize){ "strsize", TvbRange_strsize },
1792 | WSLUA_CLASS_FNREG(TvbRange,bytes){ "bytes", TvbRange_bytes },
1793 | WSLUA_CLASS_FNREG(TvbRange,bitfield){ "bitfield", TvbRange_bitfield },
1794 | WSLUA_CLASS_FNREG(TvbRange,range){ "range", TvbRange_range },
1795 | WSLUA_CLASS_FNREG(TvbRange,len){ "len", TvbRange_len },
1796 | WSLUA_CLASS_FNREG(TvbRange,offset){ "offset", TvbRange_offset },
1797 | WSLUA_CLASS_FNREG(TvbRange,tvb){ "tvb", TvbRange_tvb },
1798 | WSLUA_CLASS_FNREG(TvbRange,le_ustring){ "le_ustring", TvbRange_le_ustring },
1799 | WSLUA_CLASS_FNREG(TvbRange,ustring){ "ustring", TvbRange_ustring },
1800 | WSLUA_CLASS_FNREG(TvbRange,le_ustringz){ "le_ustringz", TvbRange_le_ustringz },
1801 | WSLUA_CLASS_FNREG(TvbRange,ustringz){ "ustringz", TvbRange_ustringz },
1802 | WSLUA_CLASS_FNREG(TvbRange,uncompress){ "uncompress", TvbRange_uncompress },
1803 | WSLUA_CLASS_FNREG(TvbRange,uncompress_zlib){ "uncompress_zlib", TvbRange_uncompress_zlib },
1804 | WSLUA_CLASS_FNREG(TvbRange,uncompress_brotli){ "uncompress_brotli", TvbRange_uncompress_brotli },
1805 | WSLUA_CLASS_FNREG(TvbRange,uncompress_hpack_huff){ "uncompress_hpack_huff", TvbRange_uncompress_hpack_huff },
1806 | WSLUA_CLASS_FNREG(TvbRange,uncompress_lz77){ "uncompress_lz77", TvbRange_uncompress_lz77 },
1807 | WSLUA_CLASS_FNREG(TvbRange,uncompress_lz77huff){ "uncompress_lz77huff", TvbRange_uncompress_lz77huff },
1808 | WSLUA_CLASS_FNREG(TvbRange,uncompress_lznt1){ "uncompress_lznt1", TvbRange_uncompress_lznt1 },
1809 | WSLUA_CLASS_FNREG(TvbRange,uncompress_snappy){ "uncompress_snappy", TvbRange_uncompress_snappy },
1810 | WSLUA_CLASS_FNREG(TvbRange,uncompress_zstd){ "uncompress_zstd", TvbRange_uncompress_zstd },
1811 | WSLUA_CLASS_FNREG(TvbRange,decode_base64){ "decode_base64", TvbRange_decode_base64 },
1812 | WSLUA_CLASS_FNREG(TvbRange,decode_base64url){ "decode_base64url", TvbRange_decode_base64url },
1813 | WSLUA_CLASS_FNREG(TvbRange,raw){ "raw", TvbRange_raw },
1814 | { NULL((void*)0), NULL((void*)0) }
1815 | };
1816 |
1817 | WSLUA_METAstatic const luaL_Reg TvbRange_meta[] = {
1818 | WSLUA_CLASS_MTREG(TvbRange,tostring){ "__" "tostring", TvbRange__tostring },
1819 | WSLUA_CLASS_MTREG(wslua,concat){ "__" "concat", wslua__concat },
1820 | WSLUA_CLASS_MTREG(TvbRange,eq){ "__" "eq", TvbRange__eq },
1821 | {"__call", TvbRange_range},
1822 | { NULL((void*)0), NULL((void*)0) }
1823 | };
1824 |
1825 | /* Read-only attributes for debugger introspection; see the comment on
1826 | * Tvb_attributes for the naming rationale. */
1827 | WSLUA_ATTRIBUTESstatic const wslua_attribute_table TvbRange_attributes[] = {
1828 | WSLUA_ATTRIBUTE_ROREG(TvbRange,length){ "length", TvbRange_get_length, ((void*)0) },
1829 | WSLUA_ATTRIBUTE_ROREG(TvbRange,position){ "position", TvbRange_get_position, ((void*)0) },
1830 | { NULL((void*)0), NULL((void*)0), NULL((void*)0) }
1831 | };
1832 |
1833 | int TvbRange_register(lua_State* L) {
1834 | if (outstanding_TvbRange != NULL((void*)0)) {
1835 | g_ptr_array_unref(outstanding_TvbRange);
1836 | }
1837 | outstanding_TvbRange = g_ptr_array_new();
1838 | WSLUA_REGISTER_CLASS_WITH_ATTRS(TvbRange){ const wslua_class TvbRange_class = { .name = "TvbRange", .class_methods = TvbRange_methods, .class_meta = TvbRange_meta, .instance_methods = TvbRange_methods, .instance_meta = TvbRange_meta, .attrs = TvbRange_attributes }; wslua_register_class(L, &TvbRange_class ); (lua_getfield(L, (-1000000 - 1000), ("TvbRange"))); lua_pushcclosure (L, (TvbRange__gc), 0); lua_setfield(L, -2, "__gc"); lua_settop (L, -(1)-1); };
1839 | return 0;
1840 | }
1841 |
1842 | /*
1843 | * Editor modelines - https://www.wireshark.org/tools/modelines.html
1844 | *
1845 | * Local variables:
1846 | * c-basic-offset: 4
1847 | * tab-width: 8
1848 | * indent-tabs-mode: nil
1849 | * End:
1850 | *
1851 | * vi: set shiftwidth=4 tabstop=8 expandtab:
1852 | * :indentSize=4:tabSize=8:noTabs=true:
1853 | */