| File: | builds/wireshark/wireshark/epan/dissectors/packet-snmp.c |
| Warning: | line 3544, column 11 Assigned value is uninitialized |
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| 1 | /* Do not modify this file. Changes will be overwritten. */ | |||
| 2 | /* Generated automatically by the ASN.1 to Wireshark dissector compiler */ | |||
| 3 | /* packet-snmp.c */ | |||
| 4 | /* asn2wrs.py -b -q -L -p snmp -c ./snmp.cnf -s ./packet-snmp-template -D . -O ../.. snmp.asn */ | |||
| 5 | ||||
| 6 | /* packet-snmp.c | |||
| 7 | * Routines for SNMP (simple network management protocol) | |||
| 8 | * Copyright (C) 1998 Didier Jorand | |||
| 9 | * | |||
| 10 | * See RFC 1157 for SNMPv1. | |||
| 11 | * | |||
| 12 | * See RFCs 1901, 1905, and 1906 for SNMPv2c. | |||
| 13 | * | |||
| 14 | * See RFCs 1905, 1906, 1909, and 1910 for SNMPv2u [historic]. | |||
| 15 | * | |||
| 16 | * See RFCs 2570-2576 for SNMPv3 | |||
| 17 | * Updated to use the asn2wrs compiler made by Tomas Kukosa | |||
| 18 | * Copyright (C) 2005 - 2006 Anders Broman [AT] ericsson.com | |||
| 19 | * | |||
| 20 | * See RFC 3414 for User-based Security Model for SNMPv3 | |||
| 21 | * See RFC 3826 for (AES) Cipher Algorithm in the SNMP USM | |||
| 22 | * See RFC 2578 for Structure of Management Information Version 2 (SMIv2) | |||
| 23 | * Copyright (C) 2007 Luis E. Garcia Ontanon <luis@ontanon.org> | |||
| 24 | * | |||
| 25 | * Wireshark - Network traffic analyzer | |||
| 26 | * By Gerald Combs <gerald@wireshark.org> | |||
| 27 | * Copyright 1998 Gerald Combs | |||
| 28 | * | |||
| 29 | * Some stuff from: | |||
| 30 | * | |||
| 31 | * GXSNMP -- An snmp management application | |||
| 32 | * Copyright (C) 1998 Gregory McLean & Jochen Friedrich | |||
| 33 | * Beholder RMON ethernet network monitor,Copyright (C) 1993 DNPAP group | |||
| 34 | * | |||
| 35 | * SPDX-License-Identifier: GPL-2.0-or-later | |||
| 36 | */ | |||
| 37 | ||||
| 38 | #if 0 | |||
| 39 | #include <stdio.h> | |||
| 40 | #define D(args) do {printf args; fflush(stdoutstdout); } while(0) | |||
| 41 | #endif | |||
| 42 | ||||
| 43 | #include "config.h" | |||
| 44 | ||||
| 45 | #include <epan/packet.h> | |||
| 46 | #include <epan/strutil.h> | |||
| 47 | #include <epan/conversation.h> | |||
| 48 | #include <epan/etypes.h> | |||
| 49 | #include <epan/prefs.h> | |||
| 50 | #include <epan/addr_resolv.h> | |||
| 51 | #include <epan/next_tvb.h> | |||
| 52 | #include <epan/uat.h> | |||
| 53 | #include <epan/asn1.h> | |||
| 54 | #include <epan/expert.h> | |||
| 55 | #include <epan/oids.h> | |||
| 56 | #include <epan/srt_table.h> | |||
| 57 | #include <epan/tap.h> | |||
| 58 | #include <epan/tfs.h> | |||
| 59 | #include <wsutil/array.h> | |||
| 60 | #include "packet-ipx.h" | |||
| 61 | #include "packet-hpext.h" | |||
| 62 | #include "packet-ber.h" | |||
| 63 | #include "packet-snmp.h" | |||
| 64 | #include <wsutil/wsgcrypt.h> | |||
| 65 | ||||
| 66 | #define UDP_PORT_SNMP161 161 | |||
| 67 | #define UDP_PORT_SNMP_TRAP162 162 | |||
| 68 | #define TCP_PORT_SNMP161 161 | |||
| 69 | #define TCP_PORT_SNMP_TRAP162 162 | |||
| 70 | #define TCP_PORT_SMUX199 199 | |||
| 71 | #define UDP_PORT_SNMP_PATROL8161 8161 | |||
| 72 | #define SNMP_NUM_PROCEDURES8 8 | |||
| 73 | ||||
| 74 | /* Initialize the protocol and registered fields */ | |||
| 75 | static int snmp_tap; | |||
| 76 | static int proto_snmp; | |||
| 77 | static int proto_smux; | |||
| 78 | ||||
| 79 | static bool_Bool display_oid = true1; | |||
| 80 | static bool_Bool snmp_var_in_tree = true1; | |||
| 81 | ||||
| 82 | void proto_register_snmp(void); | |||
| 83 | void proto_reg_handoff_snmp(void); | |||
| 84 | void proto_register_smux(void); | |||
| 85 | void proto_reg_handoff_smux(void); | |||
| 86 | ||||
| 87 | static void snmp_usm_password_to_key(const snmp_usm_auth_model_t model, const uint8_t *password, unsigned passwordlen, | |||
| 88 | const uint8_t *engineID, unsigned engineLength, uint8_t *key); | |||
| 89 | ||||
| 90 | static tvbuff_t* snmp_usm_priv_des(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
| 91 | static tvbuff_t* snmp_usm_priv_aes128(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
| 92 | static tvbuff_t* snmp_usm_priv_aes192(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
| 93 | static tvbuff_t* snmp_usm_priv_aes256(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
| 94 | ||||
| 95 | static bool_Bool snmp_usm_auth(const packet_info *pinfo, const snmp_usm_auth_model_t model, snmp_usm_params_t* p, uint8_t**, unsigned*, char const**); | |||
| 96 | ||||
| 97 | static const value_string auth_types[] = { | |||
| 98 | {SNMP_USM_AUTH_MD5,"MD5"}, | |||
| 99 | {SNMP_USM_AUTH_SHA1,"SHA1"}, | |||
| 100 | {SNMP_USM_AUTH_SHA2_224,"SHA2-224"}, | |||
| 101 | {SNMP_USM_AUTH_SHA2_256,"SHA2-256"}, | |||
| 102 | {SNMP_USM_AUTH_SHA2_384,"SHA2-384"}, | |||
| 103 | {SNMP_USM_AUTH_SHA2_512,"SHA2-512"}, | |||
| 104 | {0,NULL((void*)0)} | |||
| 105 | }; | |||
| 106 | ||||
| 107 | static const unsigned auth_hash_len[] = { | |||
| 108 | HASH_MD5_LENGTH16, | |||
| 109 | HASH_SHA1_LENGTH20, | |||
| 110 | HASH_SHA2_224_LENGTH28, | |||
| 111 | HASH_SHA2_256_LENGTH32, | |||
| 112 | HASH_SHA2_384_LENGTH48, | |||
| 113 | HASH_SHA2_512_LENGTH64 | |||
| 114 | }; | |||
| 115 | ||||
| 116 | static const unsigned auth_tag_len[] = { | |||
| 117 | 12, | |||
| 118 | 12, | |||
| 119 | 16, | |||
| 120 | 24, | |||
| 121 | 32, | |||
| 122 | 48 | |||
| 123 | }; | |||
| 124 | ||||
| 125 | static const enum gcry_md_algos auth_hash_algo[] = { | |||
| 126 | GCRY_MD_MD5, | |||
| 127 | GCRY_MD_SHA1, | |||
| 128 | GCRY_MD_SHA224, | |||
| 129 | GCRY_MD_SHA256, | |||
| 130 | GCRY_MD_SHA384, | |||
| 131 | GCRY_MD_SHA512 | |||
| 132 | }; | |||
| 133 | ||||
| 134 | #define PRIV_DES0 0 | |||
| 135 | #define PRIV_AES1281 1 | |||
| 136 | #define PRIV_AES1922 2 | |||
| 137 | #define PRIV_AES2563 3 | |||
| 138 | ||||
| 139 | static const value_string priv_types[] = { | |||
| 140 | { PRIV_DES0, "DES" }, | |||
| 141 | { PRIV_AES1281, "AES" }, | |||
| 142 | { PRIV_AES1922, "AES192" }, | |||
| 143 | { PRIV_AES2563, "AES256" }, | |||
| 144 | { 0, NULL((void*)0)} | |||
| 145 | }; | |||
| 146 | static snmp_usm_decoder_t priv_protos[] = { | |||
| 147 | snmp_usm_priv_des, | |||
| 148 | snmp_usm_priv_aes128, | |||
| 149 | snmp_usm_priv_aes192, | |||
| 150 | snmp_usm_priv_aes256 | |||
| 151 | }; | |||
| 152 | ||||
| 153 | #define PRIVKEYEXP_USM_3DESDESEDE_000 0 | |||
| 154 | #define PRIVKEYEXP_AGENTPP1 1 | |||
| 155 | ||||
| 156 | static const value_string priv_key_exp_types[] = { | |||
| 157 | { PRIVKEYEXP_USM_3DESDESEDE_000, "draft-reeder-snmpv3-usm-3desede-00" }, | |||
| 158 | { PRIVKEYEXP_AGENTPP1, "AGENT++" }, | |||
| 159 | { 0, NULL((void*)0) } | |||
| 160 | }; | |||
| 161 | ||||
| 162 | static snmp_ue_assoc_t* ueas; | |||
| 163 | static unsigned num_ueas; | |||
| 164 | static snmp_ue_assoc_t* localized_ues; | |||
| 165 | static snmp_ue_assoc_t* unlocalized_ues; | |||
| 166 | /****/ | |||
| 167 | ||||
| 168 | /* Variables used for handling enterprise specific trap types */ | |||
| 169 | typedef struct _snmp_st_assoc_t { | |||
| 170 | char *enterprise; | |||
| 171 | unsigned trap; | |||
| 172 | char *desc; | |||
| 173 | } snmp_st_assoc_t; | |||
| 174 | static unsigned num_specific_traps; | |||
| 175 | static snmp_st_assoc_t *specific_traps; | |||
| 176 | static const char *enterprise_oid; | |||
| 177 | static unsigned generic_trap; | |||
| 178 | static uint32_t snmp_version; | |||
| 179 | static uint32_t RequestID = -1; | |||
| 180 | ||||
| 181 | static snmp_usm_params_t usm_p; | |||
| 182 | ||||
| 183 | #define TH_AUTH0x01 0x01 | |||
| 184 | #define TH_CRYPT0x02 0x02 | |||
| 185 | #define TH_REPORT0x04 0x04 | |||
| 186 | ||||
| 187 | /* desegmentation of SNMP-over-TCP */ | |||
| 188 | static bool_Bool snmp_desegment = true1; | |||
| 189 | ||||
| 190 | /* Global variables */ | |||
| 191 | ||||
| 192 | uint32_t MsgSecurityModel; | |||
| 193 | tvbuff_t *oid_tvb=NULL((void*)0); | |||
| 194 | tvbuff_t *value_tvb=NULL((void*)0); | |||
| 195 | ||||
| 196 | static dissector_handle_t snmp_handle; | |||
| 197 | static dissector_handle_t snmp_tcp_handle; | |||
| 198 | static dissector_handle_t data_handle; | |||
| 199 | static dissector_handle_t smux_handle; | |||
| 200 | ||||
| 201 | static next_tvb_list_t *var_list; | |||
| 202 | ||||
| 203 | static int hf_snmp_response_in; | |||
| 204 | static int hf_snmp_response_to; | |||
| 205 | static int hf_snmp_time; | |||
| 206 | ||||
| 207 | static int hf_snmp_v3_flags_auth; | |||
| 208 | static int hf_snmp_v3_flags_crypt; | |||
| 209 | static int hf_snmp_v3_flags_report; | |||
| 210 | ||||
| 211 | static int hf_snmp_engineid_conform; | |||
| 212 | static int hf_snmp_engineid_enterprise; | |||
| 213 | static int hf_snmp_engineid_format; | |||
| 214 | static int hf_snmp_engineid_ipv4; | |||
| 215 | static int hf_snmp_engineid_ipv6; | |||
| 216 | static int hf_snmp_engineid_cisco_type; | |||
| 217 | static int hf_snmp_engineid_mac; | |||
| 218 | static int hf_snmp_engineid_text; | |||
| 219 | static int hf_snmp_engineid_time; | |||
| 220 | static int hf_snmp_engineid_data; | |||
| 221 | static int hf_snmp_decryptedPDU; | |||
| 222 | static int hf_snmp_msgAuthentication; | |||
| 223 | ||||
| 224 | static int hf_snmp_noSuchObject; | |||
| 225 | static int hf_snmp_noSuchInstance; | |||
| 226 | static int hf_snmp_endOfMibView; | |||
| 227 | static int hf_snmp_unSpecified; | |||
| 228 | ||||
| 229 | static int hf_snmp_integer32_value; | |||
| 230 | static int hf_snmp_octetstring_value; | |||
| 231 | static int hf_snmp_oid_value; | |||
| 232 | static int hf_snmp_null_value; | |||
| 233 | static int hf_snmp_ipv4_value; | |||
| 234 | static int hf_snmp_ipv6_value; | |||
| 235 | static int hf_snmp_anyaddress_value; | |||
| 236 | static int hf_snmp_unsigned32_value; | |||
| 237 | static int hf_snmp_unknown_value; | |||
| 238 | static int hf_snmp_opaque_value; | |||
| 239 | static int hf_snmp_nsap_value; | |||
| 240 | static int hf_snmp_counter_value; | |||
| 241 | static int hf_snmp_timeticks_value; | |||
| 242 | static int hf_snmp_big_counter_value; | |||
| 243 | static int hf_snmp_gauge32_value; | |||
| 244 | ||||
| 245 | static int hf_snmp_objectname; | |||
| 246 | static int hf_snmp_scalar_instance_index; | |||
| 247 | ||||
| 248 | static int hf_snmp_var_bind_str; | |||
| 249 | static int hf_snmp_agentid_trailer; | |||
| 250 | ||||
| 251 | static int hf_snmp_SMUX_PDUs_PDU; /* SMUX_PDUs */ | |||
| 252 | static int hf_snmp_version; /* Version */ | |||
| 253 | static int hf_snmp_community; /* Community */ | |||
| 254 | static int hf_snmp_data; /* PDUs */ | |||
| 255 | static int hf_snmp_parameters; /* OCTET_STRING */ | |||
| 256 | static int hf_snmp_datav2u; /* T_datav2u */ | |||
| 257 | static int hf_snmp_v2u_plaintext; /* PDUs */ | |||
| 258 | static int hf_snmp_encrypted; /* OCTET_STRING */ | |||
| 259 | static int hf_snmp_msgAuthoritativeEngineID; /* T_msgAuthoritativeEngineID */ | |||
| 260 | static int hf_snmp_msgAuthoritativeEngineBoots; /* T_msgAuthoritativeEngineBoots */ | |||
| 261 | static int hf_snmp_msgAuthoritativeEngineTime; /* T_msgAuthoritativeEngineTime */ | |||
| 262 | static int hf_snmp_msgUserName; /* T_msgUserName */ | |||
| 263 | static int hf_snmp_msgAuthenticationParameters; /* T_msgAuthenticationParameters */ | |||
| 264 | static int hf_snmp_msgPrivacyParameters; /* T_msgPrivacyParameters */ | |||
| 265 | static int hf_snmp_msgVersion; /* Version */ | |||
| 266 | static int hf_snmp_msgGlobalData; /* HeaderData */ | |||
| 267 | static int hf_snmp_msgSecurityParameters; /* T_msgSecurityParameters */ | |||
| 268 | static int hf_snmp_msgData; /* ScopedPduData */ | |||
| 269 | static int hf_snmp_msgID; /* INTEGER_0_2147483647 */ | |||
| 270 | static int hf_snmp_msgMaxSize; /* INTEGER_484_2147483647 */ | |||
| 271 | static int hf_snmp_msgFlags; /* T_msgFlags */ | |||
| 272 | static int hf_snmp_msgSecurityModel; /* T_msgSecurityModel */ | |||
| 273 | static int hf_snmp_plaintext; /* ScopedPDU */ | |||
| 274 | static int hf_snmp_encryptedPDU; /* T_encryptedPDU */ | |||
| 275 | static int hf_snmp_contextEngineID; /* SnmpEngineID */ | |||
| 276 | static int hf_snmp_contextName; /* OCTET_STRING */ | |||
| 277 | static int hf_snmp_get_request; /* GetRequest_PDU */ | |||
| 278 | static int hf_snmp_get_next_request; /* GetNextRequest_PDU */ | |||
| 279 | static int hf_snmp_get_response; /* GetResponse_PDU */ | |||
| 280 | static int hf_snmp_set_request; /* SetRequest_PDU */ | |||
| 281 | static int hf_snmp_trap; /* Trap_PDU */ | |||
| 282 | static int hf_snmp_getBulkRequest; /* GetBulkRequest_PDU */ | |||
| 283 | static int hf_snmp_informRequest; /* InformRequest_PDU */ | |||
| 284 | static int hf_snmp_snmpV2_trap; /* SNMPv2_Trap_PDU */ | |||
| 285 | static int hf_snmp_report; /* Report_PDU */ | |||
| 286 | static int hf_snmp_request_id; /* T_request_id */ | |||
| 287 | static int hf_snmp_error_status; /* T_error_status */ | |||
| 288 | static int hf_snmp_error_index; /* INTEGER */ | |||
| 289 | static int hf_snmp_variable_bindings; /* VarBindList */ | |||
| 290 | static int hf_snmp_request_id_01; /* Integer32 */ | |||
| 291 | static int hf_snmp_non_repeaters; /* INTEGER_0_2147483647 */ | |||
| 292 | static int hf_snmp_max_repetitions; /* INTEGER_0_2147483647 */ | |||
| 293 | static int hf_snmp_enterprise; /* EnterpriseOID */ | |||
| 294 | static int hf_snmp_agent_addr; /* NetworkAddress */ | |||
| 295 | static int hf_snmp_generic_trap; /* GenericTrap */ | |||
| 296 | static int hf_snmp_specific_trap; /* SpecificTrap */ | |||
| 297 | static int hf_snmp_time_stamp; /* TimeTicks */ | |||
| 298 | static int hf_snmp_name; /* ObjectName */ | |||
| 299 | static int hf_snmp_valueType; /* ValueType */ | |||
| 300 | static int hf_snmp_VarBindList_item; /* VarBind */ | |||
| 301 | static int hf_snmp_open; /* OpenPDU */ | |||
| 302 | static int hf_snmp_close; /* ClosePDU */ | |||
| 303 | static int hf_snmp_registerRequest; /* RReqPDU */ | |||
| 304 | static int hf_snmp_registerResponse; /* RegisterResponse */ | |||
| 305 | static int hf_snmp_commitOrRollback; /* SOutPDU */ | |||
| 306 | static int hf_snmp_rRspPDU; /* RRspPDU */ | |||
| 307 | static int hf_snmp_pDUs; /* PDUs */ | |||
| 308 | static int hf_snmp_smux_simple; /* SimpleOpen */ | |||
| 309 | static int hf_snmp_smux_version; /* T_smux_version */ | |||
| 310 | static int hf_snmp_identity; /* OBJECT_IDENTIFIER */ | |||
| 311 | static int hf_snmp_description; /* DisplayString */ | |||
| 312 | static int hf_snmp_password; /* OCTET_STRING */ | |||
| 313 | static int hf_snmp_subtree; /* ObjectName */ | |||
| 314 | static int hf_snmp_priority; /* INTEGER_M1_2147483647 */ | |||
| 315 | static int hf_snmp_operation; /* T_operation */ | |||
| 316 | ||||
| 317 | /* Initialize the subtree pointers */ | |||
| 318 | static int ett_smux; | |||
| 319 | static int ett_snmp; | |||
| 320 | static int ett_engineid; | |||
| 321 | static int ett_msgFlags; | |||
| 322 | static int ett_encryptedPDU; | |||
| 323 | static int ett_decrypted; | |||
| 324 | static int ett_authParameters; | |||
| 325 | static int ett_internet; | |||
| 326 | static int ett_varbind; | |||
| 327 | static int ett_name; | |||
| 328 | static int ett_value; | |||
| 329 | static int ett_decoding_error; | |||
| 330 | ||||
| 331 | static int ett_snmp_Message; | |||
| 332 | static int ett_snmp_Messagev2u; | |||
| 333 | static int ett_snmp_T_datav2u; | |||
| 334 | static int ett_snmp_UsmSecurityParameters; | |||
| 335 | static int ett_snmp_SNMPv3Message; | |||
| 336 | static int ett_snmp_HeaderData; | |||
| 337 | static int ett_snmp_ScopedPduData; | |||
| 338 | static int ett_snmp_ScopedPDU; | |||
| 339 | static int ett_snmp_PDUs; | |||
| 340 | static int ett_snmp_PDU; | |||
| 341 | static int ett_snmp_BulkPDU; | |||
| 342 | static int ett_snmp_Trap_PDU_U; | |||
| 343 | static int ett_snmp_VarBind; | |||
| 344 | static int ett_snmp_VarBindList; | |||
| 345 | static int ett_snmp_SMUX_PDUs; | |||
| 346 | static int ett_snmp_RegisterResponse; | |||
| 347 | static int ett_snmp_OpenPDU; | |||
| 348 | static int ett_snmp_SimpleOpen_U; | |||
| 349 | static int ett_snmp_RReqPDU_U; | |||
| 350 | ||||
| 351 | static expert_field ei_snmp_failed_decrypted_data_pdu; | |||
| 352 | static expert_field ei_snmp_decrypted_data_bad_formatted; | |||
| 353 | static expert_field ei_snmp_verify_authentication_error; | |||
| 354 | static expert_field ei_snmp_authentication_ok; | |||
| 355 | static expert_field ei_snmp_authentication_error; | |||
| 356 | static expert_field ei_snmp_varbind_not_uni_class_seq; | |||
| 357 | static expert_field ei_snmp_varbind_has_indicator; | |||
| 358 | static expert_field ei_snmp_objectname_not_oid; | |||
| 359 | static expert_field ei_snmp_objectname_has_indicator; | |||
| 360 | static expert_field ei_snmp_value_not_primitive_encoding; | |||
| 361 | static expert_field ei_snmp_invalid_oid; | |||
| 362 | static expert_field ei_snmp_varbind_wrong_tag; | |||
| 363 | static expert_field ei_snmp_varbind_response; | |||
| 364 | static expert_field ei_snmp_no_instance_subid; | |||
| 365 | static expert_field ei_snmp_wrong_num_of_subids; | |||
| 366 | static expert_field ei_snmp_index_suboid_too_short; | |||
| 367 | static expert_field ei_snmp_unimplemented_instance_index; | |||
| 368 | static expert_field ei_snmp_index_suboid_len0; | |||
| 369 | static expert_field ei_snmp_index_suboid_too_long; | |||
| 370 | static expert_field ei_snmp_index_string_too_long; | |||
| 371 | static expert_field ei_snmp_column_parent_not_row; | |||
| 372 | static expert_field ei_snmp_uint_too_large; | |||
| 373 | static expert_field ei_snmp_int_too_large; | |||
| 374 | static expert_field ei_snmp_integral_value0; | |||
| 375 | static expert_field ei_snmp_missing_mib; | |||
| 376 | static expert_field ei_snmp_varbind_wrong_length_value; | |||
| 377 | static expert_field ei_snmp_varbind_wrong_class_tag; | |||
| 378 | static expert_field ei_snmp_rfc1910_non_conformant; | |||
| 379 | static expert_field ei_snmp_rfc3411_non_conformant; | |||
| 380 | static expert_field ei_snmp_version_unknown; | |||
| 381 | static expert_field ei_snmp_trap_pdu_obsolete; | |||
| 382 | ||||
| 383 | static const true_false_string auth_flags = { | |||
| 384 | "OK", | |||
| 385 | "Failed" | |||
| 386 | }; | |||
| 387 | ||||
| 388 | /* Security Models */ | |||
| 389 | ||||
| 390 | #define SNMP_SEC_ANY0 0 | |||
| 391 | #define SNMP_SEC_V11 1 | |||
| 392 | #define SNMP_SEC_V2C2 2 | |||
| 393 | #define SNMP_SEC_USM3 3 | |||
| 394 | ||||
| 395 | static const value_string sec_models[] = { | |||
| 396 | { SNMP_SEC_ANY0, "Any" }, | |||
| 397 | { SNMP_SEC_V11, "V1" }, | |||
| 398 | { SNMP_SEC_V2C2, "V2C" }, | |||
| 399 | { SNMP_SEC_USM3, "USM" }, | |||
| 400 | { 0, NULL((void*)0) } | |||
| 401 | }; | |||
| 402 | ||||
| 403 | #if 0 | |||
| 404 | /* SMUX PDU types */ | |||
| 405 | #define SMUX_MSG_OPEN 0 | |||
| 406 | #define SMUX_MSG_CLOSE 1 | |||
| 407 | #define SMUX_MSG_RREQ 2 | |||
| 408 | #define SMUX_MSG_RRSP 3 | |||
| 409 | #define SMUX_MSG_SOUT 4 | |||
| 410 | ||||
| 411 | static const value_string smux_types[] = { | |||
| 412 | { SMUX_MSG_OPEN, "Open" }, | |||
| 413 | { SMUX_MSG_CLOSE, "Close" }, | |||
| 414 | { SMUX_MSG_RREQ, "Registration Request" }, | |||
| 415 | { SMUX_MSG_RRSP, "Registration Response" }, | |||
| 416 | { SMUX_MSG_SOUT, "Commit Or Rollback" }, | |||
| 417 | { 0, NULL((void*)0) } | |||
| 418 | }; | |||
| 419 | #endif | |||
| 420 | ||||
| 421 | /* Procedure names (used in Service Response Time) */ | |||
| 422 | static const value_string snmp_procedure_names[] = { | |||
| 423 | { 0, "Get" }, | |||
| 424 | { 1, "GetNext" }, | |||
| 425 | { 3, "Set" }, | |||
| 426 | { 4, "Register" }, | |||
| 427 | { 5, "Bulk" }, | |||
| 428 | { 6, "Inform" }, | |||
| 429 | { 0, NULL((void*)0) } | |||
| 430 | }; | |||
| 431 | ||||
| 432 | #define SNMP_IPA0 0 /* IP Address */ | |||
| 433 | #define SNMP_CNT1 1 /* Counter (Counter32) */ | |||
| 434 | #define SNMP_GGE2 2 /* Gauge (Gauge32) */ | |||
| 435 | #define SNMP_TIT3 3 /* TimeTicks */ | |||
| 436 | #define SNMP_OPQ4 4 /* Opaque */ | |||
| 437 | #define SNMP_NSP5 5 /* NsapAddress */ | |||
| 438 | #define SNMP_C646 6 /* Counter64 */ | |||
| 439 | #define SNMP_U327 7 /* Uinteger32 */ | |||
| 440 | ||||
| 441 | #define SERR_NSO0 0 | |||
| 442 | #define SERR_NSI1 1 | |||
| 443 | #define SERR_EOM2 2 | |||
| 444 | ||||
| 445 | ||||
| 446 | dissector_table_t value_sub_dissectors_table; | |||
| 447 | ||||
| 448 | /* | |||
| 449 | * Data structure attached to a conversation, request/response information | |||
| 450 | */ | |||
| 451 | typedef struct snmp_conv_info_t { | |||
| 452 | wmem_map_t *request_response; | |||
| 453 | } snmp_conv_info_t; | |||
| 454 | ||||
| 455 | static snmp_conv_info_t* | |||
| 456 | snmp_find_conversation_and_get_conv_data(packet_info *pinfo); | |||
| 457 | ||||
| 458 | static snmp_request_response_t * | |||
| 459 | snmp_get_request_response_pointer(wmem_map_t *map, uint32_t requestId) | |||
| 460 | { | |||
| 461 | snmp_request_response_t *srrp=(snmp_request_response_t *)wmem_map_lookup(map, &requestId); | |||
| 462 | if (!srrp) { | |||
| 463 | srrp=wmem_new0(wmem_file_scope(), snmp_request_response_t)((snmp_request_response_t*)wmem_alloc0((wmem_file_scope()), sizeof (snmp_request_response_t))); | |||
| 464 | srrp->requestId=requestId; | |||
| 465 | wmem_map_insert(map, &(srrp->requestId), (void *)srrp); | |||
| 466 | } | |||
| 467 | ||||
| 468 | return srrp; | |||
| 469 | } | |||
| 470 | ||||
| 471 | static snmp_request_response_t* | |||
| 472 | snmp_match_request_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, unsigned requestId, unsigned procedure_id, snmp_conv_info_t *snmp_info) | |||
| 473 | { | |||
| 474 | snmp_request_response_t *srrp=NULL((void*)0); | |||
| 475 | ||||
| 476 | DISSECTOR_ASSERT_HINT(snmp_info, "No SNMP info from ASN1 context")((void) ((snmp_info) ? (void)0 : (proto_report_dissector_bug( "%s:%u: failed assertion \"%s\" (%s)", "epan/dissectors/packet-snmp.c" , 476, "snmp_info", "No SNMP info from ASN1 context")))); | |||
| 477 | ||||
| 478 | /* get or create request/response pointer based on request id */ | |||
| 479 | srrp=(snmp_request_response_t *)snmp_get_request_response_pointer(snmp_info->request_response, requestId); | |||
| 480 | ||||
| 481 | // if not visited fill the request/response data | |||
| 482 | if (!PINFO_FD_VISITED(pinfo)((pinfo)->fd->visited)) { | |||
| 483 | switch(procedure_id) | |||
| 484 | { | |||
| 485 | case SNMP_REQ_GET0: | |||
| 486 | case SNMP_REQ_GETNEXT1: | |||
| 487 | case SNMP_REQ_SET3: | |||
| 488 | case SNMP_REQ_GETBULK5: | |||
| 489 | case SNMP_REQ_INFORM6: | |||
| 490 | srrp->request_frame_id=pinfo->fd->num; | |||
| 491 | srrp->response_frame_id=0; | |||
| 492 | srrp->request_time=pinfo->abs_ts; | |||
| 493 | srrp->request_procedure_id=procedure_id; | |||
| 494 | break; | |||
| 495 | case SNMP_RES_GET2: | |||
| 496 | srrp->response_frame_id=pinfo->fd->num; | |||
| 497 | break; | |||
| 498 | default: | |||
| 499 | return NULL((void*)0); | |||
| 500 | } | |||
| 501 | } | |||
| 502 | ||||
| 503 | /* if request and response was matched */ | |||
| 504 | if (srrp->request_frame_id!=0 && srrp->response_frame_id!=0) | |||
| 505 | { | |||
| 506 | proto_item *it; | |||
| 507 | ||||
| 508 | // if it is the response | |||
| 509 | if (srrp->response_frame_id == pinfo->fd->num) | |||
| 510 | { | |||
| 511 | nstime_t ns; | |||
| 512 | it=proto_tree_add_uint(tree, hf_snmp_response_to, tvb, 0, 0, srrp->request_frame_id); | |||
| 513 | proto_item_set_generated(it); | |||
| 514 | nstime_delta(&ns, &pinfo->abs_ts, &srrp->request_time); | |||
| 515 | it=proto_tree_add_time(tree, hf_snmp_time, tvb, 0, 0, &ns); | |||
| 516 | proto_item_set_generated(it); | |||
| 517 | ||||
| 518 | return srrp; | |||
| 519 | } else { | |||
| 520 | it=proto_tree_add_uint(tree, hf_snmp_response_in, tvb, 0, 0, srrp->response_frame_id); | |||
| 521 | proto_item_set_generated(it); | |||
| 522 | } | |||
| 523 | } | |||
| 524 | ||||
| 525 | return NULL((void*)0); | |||
| 526 | } | |||
| 527 | ||||
| 528 | static void | |||
| 529 | snmpstat_init(struct register_srt* srt _U___attribute__((unused)), GArray* srt_array) | |||
| 530 | { | |||
| 531 | srt_stat_table *snmp_srt_table; | |||
| 532 | uint32_t i; | |||
| 533 | ||||
| 534 | snmp_srt_table = init_srt_table("SNMP Commands", NULL((void*)0), srt_array, SNMP_NUM_PROCEDURES8, NULL((void*)0), "snmp.data", NULL((void*)0)); | |||
| 535 | for (i = 0; i < SNMP_NUM_PROCEDURES8; i++) | |||
| 536 | { | |||
| 537 | init_srt_table_row(snmp_srt_table, i, val_to_str_const(i, snmp_procedure_names, "<unknown>")); | |||
| 538 | } | |||
| 539 | } | |||
| 540 | ||||
| 541 | /* This is called only if request and response was matched -> no need to return anything than TAP_PACKET_REDRAW */ | |||
| 542 | static tap_packet_status | |||
| 543 | snmpstat_packet(void *psnmp, packet_info *pinfo, epan_dissect_t *edt _U___attribute__((unused)), const void *psi, tap_flags_t flags _U___attribute__((unused))) | |||
| 544 | { | |||
| 545 | unsigned i = 0; | |||
| 546 | srt_stat_table *snmp_srt_table; | |||
| 547 | const snmp_request_response_t *snmp=(const snmp_request_response_t *)psi; | |||
| 548 | srt_data_t *data = (srt_data_t *)psnmp; | |||
| 549 | ||||
| 550 | snmp_srt_table = g_array_index(data->srt_array, srt_stat_table*, i)(((srt_stat_table**) (void *) (data->srt_array)->data) [ (i)]); | |||
| 551 | ||||
| 552 | add_srt_table_data(snmp_srt_table, snmp->request_procedure_id, &snmp->request_time, pinfo); | |||
| 553 | return TAP_PACKET_REDRAW; | |||
| 554 | } | |||
| 555 | ||||
| 556 | static const char * | |||
| 557 | snmp_lookup_specific_trap (unsigned specific_trap) | |||
| 558 | { | |||
| 559 | unsigned i; | |||
| 560 | ||||
| 561 | for (i = 0; i < num_specific_traps; i++) { | |||
| 562 | snmp_st_assoc_t *u = &(specific_traps[i]); | |||
| 563 | ||||
| 564 | if ((u->trap == specific_trap) && | |||
| 565 | (strcmp (u->enterprise, enterprise_oid) == 0)) | |||
| 566 | { | |||
| 567 | return u->desc; | |||
| 568 | } | |||
| 569 | } | |||
| 570 | ||||
| 571 | return NULL((void*)0); | |||
| 572 | } | |||
| 573 | ||||
| 574 | static int | |||
| 575 | dissect_snmp_variable_string(tvbuff_t *tvb, packet_info *pinfo _U___attribute__((unused)), proto_tree *tree, void *data _U___attribute__((unused))) | |||
| 576 | { | |||
| 577 | ||||
| 578 | proto_tree_add_item(tree, hf_snmp_var_bind_str, tvb, 0, -1, ENC_ASCII0x00000000); | |||
| 579 | ||||
| 580 | return tvb_captured_length(tvb); | |||
| 581 | } | |||
| 582 | ||||
| 583 | /* | |||
| 584 | DateAndTime ::= TEXTUAL-CONVENTION | |||
| 585 | DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d" | |||
| 586 | STATUS current | |||
| 587 | DESCRIPTION | |||
| 588 | "A date-time specification. | |||
| 589 | ||||
| 590 | field octets contents range | |||
| 591 | ----- ------ -------- ----- | |||
| 592 | 1 1-2 year* 0..65536 | |||
| 593 | 2 3 month 1..12 | |||
| 594 | 3 4 day 1..31 | |||
| 595 | 4 5 hour 0..23 | |||
| 596 | 5 6 minutes 0..59 | |||
| 597 | 6 7 seconds 0..60 | |||
| 598 | (use 60 for leap-second) | |||
| 599 | 7 8 deci-seconds 0..9 | |||
| 600 | 8 9 direction from UTC '+' / '-' | |||
| 601 | 9 10 hours from UTC* 0..13 | |||
| 602 | 10 11 minutes from UTC 0..59 | |||
| 603 | ||||
| 604 | * Notes: | |||
| 605 | - the value of year is in network-byte order | |||
| 606 | - daylight saving time in New Zealand is +13 | |||
| 607 | ||||
| 608 | For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be | |||
| 609 | displayed as: | |||
| 610 | ||||
| 611 | 1992-5-26,13:30:15.0,-4:0 | |||
| 612 | ||||
| 613 | Note that if only local time is known, then timezone | |||
| 614 | information (fields 8-10) is not present." | |||
| 615 | SYNTAX OCTET STRING (SIZE (8 | 11)) | |||
| 616 | */ | |||
| 617 | static proto_item * | |||
| 618 | dissect_snmp_variable_date_and_time(proto_tree *tree, packet_info *pinfo, int hfid, tvbuff_t *tvb, int offset, int length) | |||
| 619 | { | |||
| 620 | uint16_t year; | |||
| 621 | uint8_t month; | |||
| 622 | uint8_t day; | |||
| 623 | uint8_t hour; | |||
| 624 | uint8_t minutes; | |||
| 625 | uint8_t seconds; | |||
| 626 | uint8_t deci_seconds; | |||
| 627 | uint8_t hour_from_utc; | |||
| 628 | uint8_t min_from_utc; | |||
| 629 | char *str; | |||
| 630 | ||||
| 631 | year = tvb_get_ntohs(tvb,offset); | |||
| 632 | month = tvb_get_uint8(tvb,offset+2); | |||
| 633 | day = tvb_get_uint8(tvb,offset+3); | |||
| 634 | hour = tvb_get_uint8(tvb,offset+4); | |||
| 635 | minutes = tvb_get_uint8(tvb,offset+5); | |||
| 636 | seconds = tvb_get_uint8(tvb,offset+6); | |||
| 637 | deci_seconds = tvb_get_uint8(tvb,offset+7); | |||
| 638 | if(length > 8){ | |||
| 639 | hour_from_utc = tvb_get_uint8(tvb,offset+9); | |||
| 640 | min_from_utc = tvb_get_uint8(tvb,offset+10); | |||
| 641 | ||||
| 642 | str = wmem_strdup_printf(pinfo->pool, | |||
| 643 | "%u-%u-%u, %u:%u:%u.%u UTC %s%u:%u", | |||
| 644 | year, | |||
| 645 | month, | |||
| 646 | day, | |||
| 647 | hour, | |||
| 648 | minutes, | |||
| 649 | seconds, | |||
| 650 | deci_seconds, | |||
| 651 | tvb_get_string_enc(pinfo->pool,tvb,offset+8,1,ENC_ASCII0x00000000|ENC_NA0x00000000), | |||
| 652 | hour_from_utc, | |||
| 653 | min_from_utc); | |||
| 654 | }else{ | |||
| 655 | str = wmem_strdup_printf(pinfo->pool, | |||
| 656 | "%u-%u-%u, %u:%u:%u.%u", | |||
| 657 | year, | |||
| 658 | month, | |||
| 659 | day, | |||
| 660 | hour, | |||
| 661 | minutes, | |||
| 662 | seconds, | |||
| 663 | deci_seconds); | |||
| 664 | } | |||
| 665 | ||||
| 666 | return proto_tree_add_string(tree, hfid, tvb, offset, length, str); | |||
| 667 | ||||
| 668 | } | |||
| 669 | ||||
| 670 | /* | |||
| 671 | * dissect_snmp_VarBind | |||
| 672 | * this routine dissects variable bindings, looking for the oid information in our oid repository | |||
| 673 | * to format and add the value adequately. | |||
| 674 | * | |||
| 675 | * The choice to handwrite this code instead of using the asn compiler is to avoid having tons | |||
| 676 | * of uses of global variables distributed in very different parts of the code. | |||
| 677 | * Other than that there's a cosmetic thing: the tree from ASN generated code would be so | |||
| 678 | * convoluted due to the nesting of CHOICEs in the definition of VarBind/value. | |||
| 679 | * | |||
| 680 | * XXX: the length of this function (~400 lines) is an aberration! | |||
| 681 | * oid_key_t:key_type could become a series of callbacks instead of an enum | |||
| 682 | * the (! oid_info_is_ok) switch could be made into an array (would be slower) | |||
| 683 | * | |||
| 684 | ||||
| 685 | NetworkAddress ::= CHOICE { internet IpAddress } | |||
| 686 | IpAddress ::= [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4)) | |||
| 687 | TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) | |||
| 688 | Integer32 ::= INTEGER (-2147483648..2147483647) | |||
| 689 | ObjectName ::= OBJECT IDENTIFIER | |||
| 690 | Counter32 ::= [APPLICATION 1] IMPLICIT INTEGER (0..4294967295) | |||
| 691 | Gauge32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) | |||
| 692 | Unsigned32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) | |||
| 693 | Integer-value ::= INTEGER (-2147483648..2147483647) | |||
| 694 | Integer32 ::= INTEGER (-2147483648..2147483647) | |||
| 695 | ObjectID-value ::= OBJECT IDENTIFIER | |||
| 696 | Empty ::= NULL | |||
| 697 | TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) | |||
| 698 | Opaque ::= [APPLICATION 4] IMPLICIT OCTET STRING | |||
| 699 | Counter64 ::= [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615) | |||
| 700 | ||||
| 701 | ObjectSyntax ::= CHOICE { | |||
| 702 | simple SimpleSyntax, | |||
| 703 | application-wide ApplicationSyntax | |||
| 704 | } | |||
| 705 | ||||
| 706 | SimpleSyntax ::= CHOICE { | |||
| 707 | integer-value Integer-value, | |||
| 708 | string-value String-value, | |||
| 709 | objectID-value ObjectID-value, | |||
| 710 | empty Empty | |||
| 711 | } | |||
| 712 | ||||
| 713 | ApplicationSyntax ::= CHOICE { | |||
| 714 | ipAddress-value IpAddress, | |||
| 715 | counter-value Counter32, | |||
| 716 | timeticks-value TimeTicks, | |||
| 717 | arbitrary-value Opaque, | |||
| 718 | big-counter-value Counter64, | |||
| 719 | unsigned-integer-value Unsigned32 | |||
| 720 | } | |||
| 721 | ||||
| 722 | ValueType ::= CHOICE { | |||
| 723 | value ObjectSyntax, | |||
| 724 | unSpecified NULL, | |||
| 725 | noSuchObject[0] IMPLICIT NULL, | |||
| 726 | noSuchInstance[1] IMPLICIT NULL, | |||
| 727 | endOfMibView[2] IMPLICIT NULL | |||
| 728 | } | |||
| 729 | ||||
| 730 | VarBind ::= SEQUENCE { | |||
| 731 | name ObjectName, | |||
| 732 | valueType ValueType | |||
| 733 | } | |||
| 734 | ||||
| 735 | */ | |||
| 736 | ||||
| 737 | static unsigned | |||
| 738 | dissect_snmp_VarBind(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb, unsigned offset, | |||
| 739 | asn1_ctx_t *actx, proto_tree *tree, int hf_index _U___attribute__((unused))) | |||
| 740 | { | |||
| 741 | int seq_offset, name_offset, value_offset, value_start; | |||
| 742 | uint32_t seq_len, name_len, value_len; | |||
| 743 | int8_t ber_class; | |||
| 744 | bool_Bool pc; | |||
| 745 | int32_t tag; | |||
| 746 | bool_Bool ind; | |||
| 747 | uint32_t* subids; | |||
| 748 | uint8_t* oid_bytes; | |||
| 749 | oid_info_t* oid_info = NULL((void*)0); | |||
| 750 | unsigned oid_matched, oid_left; | |||
| 751 | proto_item *pi_name, *pi_varbind, *pi_value = NULL((void*)0); | |||
| 752 | proto_tree *pt, *pt_varbind, *pt_name, *pt_value; | |||
| 753 | char label[ITEM_LABEL_LENGTH240]; | |||
| 754 | const char* repr = NULL((void*)0); | |||
| 755 | const char* info_oid = NULL((void*)0); | |||
| 756 | char* valstr; | |||
| 757 | int hfid = -1; | |||
| 758 | int min_len = 0, max_len = 0; | |||
| 759 | bool_Bool oid_info_is_ok; | |||
| 760 | const char* oid_string = NULL((void*)0); | |||
| 761 | enum {BER_NO_ERROR, BER_WRONG_LENGTH, BER_WRONG_TAG} format_error = BER_NO_ERROR; | |||
| 762 | ||||
| 763 | seq_offset = offset; | |||
| 764 | ||||
| 765 | /* first have the VarBind's sequence header */ | |||
| 766 | offset = dissect_ber_identifier(actx->pinfo, tree, tvb, offset, &ber_class, &pc, &tag); | |||
| 767 | offset = dissect_ber_length(actx->pinfo, tree, tvb, offset, &seq_len, &ind); | |||
| 768 | ||||
| 769 | if (!pc && ber_class==BER_CLASS_UNI0 && tag==BER_UNI_TAG_SEQUENCE16) { | |||
| 770 | proto_item* pi; | |||
| 771 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len + (offset - seq_offset), | |||
| 772 | ett_decoding_error, &pi, "VarBind must be an universal class sequence"); | |||
| 773 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_not_uni_class_seq); | |||
| 774 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
| 775 | } | |||
| 776 | ||||
| 777 | if (ind) { | |||
| 778 | proto_item* pi; | |||
| 779 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len + (offset - seq_offset), | |||
| 780 | ett_decoding_error, &pi, "Indicator must be clear in VarBind"); | |||
| 781 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_has_indicator); | |||
| 782 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
| 783 | } | |||
| 784 | ||||
| 785 | /* we add the varbind tree root with a dummy label we'll fill later on */ | |||
| 786 | pt_varbind = proto_tree_add_subtree(tree,tvb,offset,seq_len,ett_varbind,&pi_varbind,"VarBind"); | |||
| 787 | *label = '\0'; | |||
| 788 | ||||
| 789 | seq_len += offset - seq_offset; | |||
| 790 | ||||
| 791 | /* then we have the ObjectName's header */ | |||
| 792 | ||||
| 793 | offset = dissect_ber_identifier(actx->pinfo, pt_varbind, tvb, offset, &ber_class, &pc, &tag); | |||
| 794 | name_offset = offset = dissect_ber_length(actx->pinfo, pt_varbind, tvb, offset, &name_len, &ind); | |||
| 795 | ||||
| 796 | if (! ( !pc && ber_class==BER_CLASS_UNI0 && tag==BER_UNI_TAG_OID6) ) { | |||
| 797 | proto_item* pi; | |||
| 798 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len, | |||
| 799 | ett_decoding_error, &pi, "ObjectName must be an OID in primitive encoding"); | |||
| 800 | expert_add_info(actx->pinfo, pi, &ei_snmp_objectname_not_oid); | |||
| 801 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
| 802 | } | |||
| 803 | ||||
| 804 | if (ind) { | |||
| 805 | proto_item* pi; | |||
| 806 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len, | |||
| 807 | ett_decoding_error, &pi, "Indicator must be clear in ObjectName"); | |||
| 808 | expert_add_info(actx->pinfo, pi, &ei_snmp_objectname_has_indicator); | |||
| 809 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
| 810 | } | |||
| 811 | ||||
| 812 | pi_name = proto_tree_add_item(pt_varbind,hf_snmp_objectname,tvb,name_offset,name_len,ENC_NA0x00000000); | |||
| 813 | pt_name = proto_item_add_subtree(pi_name,ett_name); | |||
| 814 | ||||
| 815 | offset += name_len; | |||
| 816 | value_start = offset; | |||
| 817 | /* then we have the value's header */ | |||
| 818 | offset = dissect_ber_identifier(actx->pinfo, pt_varbind, tvb, offset, &ber_class, &pc, &tag); | |||
| 819 | value_offset = dissect_ber_length(actx->pinfo, pt_varbind, tvb, offset, &value_len, &ind); | |||
| 820 | ||||
| 821 | if (! (!pc) ) { | |||
| 822 | proto_item* pi; | |||
| 823 | pt = proto_tree_add_subtree(pt_varbind, tvb, value_start, value_len, | |||
| 824 | ett_decoding_error, &pi, "the value must be in primitive encoding"); | |||
| 825 | expert_add_info(actx->pinfo, pi, &ei_snmp_value_not_primitive_encoding); | |||
| 826 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
| 827 | } | |||
| 828 | ||||
| 829 | /* Now, we know where everything is */ | |||
| 830 | ||||
| 831 | /* fetch ObjectName and its relative oid_info */ | |||
| 832 | oid_bytes = (uint8_t*)tvb_memdup(actx->pinfo->pool, tvb, name_offset, name_len); | |||
| 833 | oid_info = oid_get_from_encoded(actx->pinfo->pool, oid_bytes, name_len, &subids, &oid_matched, &oid_left); | |||
| 834 | ||||
| 835 | add_oid_debug_subtree(oid_info,pt_name)((void)0); | |||
| 836 | ||||
| 837 | if (!subids) { | |||
| 838 | proto_item* pi; | |||
| 839 | ||||
| 840 | repr = oid_encoded2string(actx->pinfo->pool, oid_bytes, name_len); | |||
| 841 | pt = proto_tree_add_subtree_format(pt_name,tvb, 0, 0, ett_decoding_error, &pi, "invalid oid: %s", repr); | |||
| 842 | expert_add_info_format(actx->pinfo, pi, &ei_snmp_invalid_oid, "invalid oid: %s", repr); | |||
| 843 | return dissect_unknown_ber(actx->pinfo, tvb, name_offset, pt); | |||
| 844 | } | |||
| 845 | ||||
| 846 | if (oid_matched+oid_left) { | |||
| 847 | oid_string = oid_subid2string(actx->pinfo->pool, subids,oid_matched+oid_left); | |||
| 848 | } | |||
| 849 | ||||
| 850 | if (ber_class == BER_CLASS_CON2) { | |||
| 851 | /* if we have an error value just add it and get out the way ASAP */ | |||
| 852 | proto_item* pi; | |||
| 853 | const char* note; | |||
| 854 | ||||
| 855 | if (value_len != 0) { | |||
| 856 | min_len = max_len = 0; | |||
| 857 | format_error = BER_WRONG_LENGTH; | |||
| 858 | } | |||
| 859 | ||||
| 860 | switch (tag) { | |||
| 861 | case SERR_NSO0: | |||
| 862 | hfid = hf_snmp_noSuchObject; | |||
| 863 | note = "noSuchObject"; | |||
| 864 | break; | |||
| 865 | case SERR_NSI1: | |||
| 866 | hfid = hf_snmp_noSuchInstance; | |||
| 867 | note = "noSuchInstance"; | |||
| 868 | break; | |||
| 869 | case SERR_EOM2: | |||
| 870 | hfid = hf_snmp_endOfMibView; | |||
| 871 | note = "endOfMibView"; | |||
| 872 | break; | |||
| 873 | default: { | |||
| 874 | pt = proto_tree_add_subtree_format(pt_varbind,tvb,0,0,ett_decoding_error,&pi, | |||
| 875 | "Wrong tag for Error Value: expected 0, 1, or 2 but got: %d",tag); | |||
| 876 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_tag); | |||
| 877 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
| 878 | } | |||
| 879 | } | |||
| 880 | ||||
| 881 | pi = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
| 882 | expert_add_info_format(actx->pinfo, pi, &ei_snmp_varbind_response, "%s",note); | |||
| 883 | (void) g_strlcpy (label, note, ITEM_LABEL_LENGTH240); | |||
| 884 | goto set_label; | |||
| 885 | } | |||
| 886 | ||||
| 887 | /* now we'll try to figure out which are the indexing sub-oids and whether the oid we know about is the one oid we have to use */ | |||
| 888 | switch (oid_info->kind) { | |||
| 889 | case OID_KIND_SCALAR: | |||
| 890 | if (oid_left == 1) { | |||
| 891 | /* OK: we got the instance sub-id */ | |||
| 892 | proto_tree_add_uint64(pt_name,hf_snmp_scalar_instance_index,tvb,name_offset,name_len,subids[oid_matched]); | |||
| 893 | oid_info_is_ok = true1; | |||
| 894 | goto indexing_done; | |||
| 895 | } else if (oid_left == 0) { | |||
| 896 | if (ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
| 897 | /* unSpecified does not require an instance sub-id add the new value and get off the way! */ | |||
| 898 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
| 899 | goto set_label; | |||
| 900 | } else { | |||
| 901 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_no_instance_subid,tvb,0,0); | |||
| 902 | oid_info_is_ok = false0; | |||
| 903 | goto indexing_done; | |||
| 904 | } | |||
| 905 | } else { | |||
| 906 | proto_tree_add_expert_format(pt_name,actx->pinfo,&ei_snmp_wrong_num_of_subids,tvb,0,0,"A scalar should have only one instance sub-id this has: %d",oid_left); | |||
| 907 | oid_info_is_ok = false0; | |||
| 908 | goto indexing_done; | |||
| 909 | } | |||
| 910 | break; | |||
| 911 | case OID_KIND_COLUMN: | |||
| 912 | if ( oid_info->parent->kind == OID_KIND_ROW) { | |||
| 913 | oid_key_t* k = oid_info->parent->key; | |||
| 914 | unsigned key_start = oid_matched; | |||
| 915 | unsigned key_len = oid_left; | |||
| 916 | oid_info_is_ok = true1; | |||
| 917 | ||||
| 918 | if ( key_len == 0 && ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
| 919 | /* unSpecified does not require an instance sub-id add the new value and get off the way! */ | |||
| 920 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
| 921 | goto set_label; | |||
| 922 | } | |||
| 923 | ||||
| 924 | if (k) { | |||
| 925 | for (;k;k = k->next) { | |||
| 926 | unsigned suboid_len; | |||
| 927 | ||||
| 928 | if (key_start >= oid_matched+oid_left) { | |||
| 929 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_too_short,tvb,0,0); | |||
| 930 | oid_info_is_ok = false0; | |||
| 931 | goto indexing_done; | |||
| 932 | } | |||
| 933 | ||||
| 934 | switch(k->key_type) { | |||
| 935 | case OID_KEY_TYPE_WRONG: { | |||
| 936 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_unimplemented_instance_index,tvb,0,0); | |||
| 937 | oid_info_is_ok = false0; | |||
| 938 | goto indexing_done; | |||
| 939 | } | |||
| 940 | case OID_KEY_TYPE_INTEGER: { | |||
| 941 | if (FT_IS_INT(k->ft_type)(((k->ft_type) == FT_INT8 || (k->ft_type) == FT_INT16 || (k->ft_type) == FT_INT24 || (k->ft_type) == FT_INT32) || ((k->ft_type) == FT_INT40 || (k->ft_type) == FT_INT48 || (k->ft_type) == FT_INT56 || (k->ft_type) == FT_INT64))) { | |||
| 942 | proto_tree_add_int(pt_name,k->hfid,tvb,name_offset,name_len,(unsigned)subids[key_start]); | |||
| 943 | } else { /* if it's not an unsigned int let proto_tree_add_uint throw a warning */ | |||
| 944 | proto_tree_add_uint64(pt_name,k->hfid,tvb,name_offset,name_len,(unsigned)subids[key_start]); | |||
| 945 | } | |||
| 946 | key_start++; | |||
| 947 | key_len--; | |||
| 948 | continue; /* k->next */ | |||
| 949 | } | |||
| 950 | case OID_KEY_TYPE_IMPLIED_OID: | |||
| 951 | suboid_len = key_len; | |||
| 952 | ||||
| 953 | goto show_oid_index; | |||
| 954 | ||||
| 955 | case OID_KEY_TYPE_OID: { | |||
| 956 | uint8_t* suboid_buf; | |||
| 957 | unsigned suboid_buf_len; | |||
| 958 | uint32_t* suboid; | |||
| 959 | ||||
| 960 | suboid_len = subids[key_start++]; | |||
| 961 | key_len--; | |||
| 962 | ||||
| 963 | show_oid_index: | |||
| 964 | suboid = &(subids[key_start]); | |||
| 965 | ||||
| 966 | if( suboid_len == 0 ) { | |||
| 967 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_len0,tvb,0,0); | |||
| 968 | oid_info_is_ok = false0; | |||
| 969 | goto indexing_done; | |||
| 970 | } | |||
| 971 | ||||
| 972 | if( key_len < suboid_len ) { | |||
| 973 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_too_long,tvb,0,0); | |||
| 974 | oid_info_is_ok = false0; | |||
| 975 | goto indexing_done; | |||
| 976 | } | |||
| 977 | ||||
| 978 | suboid_buf_len = oid_subid2encoded(actx->pinfo->pool, suboid_len, suboid, &suboid_buf); | |||
| 979 | ||||
| 980 | DISSECTOR_ASSERT(suboid_buf_len)((void) ((suboid_buf_len) ? (void)0 : (proto_report_dissector_bug ("%s:%u: failed assertion \"%s\"", "epan/dissectors/packet-snmp.c" , 980, "suboid_buf_len")))); | |||
| 981 | ||||
| 982 | proto_tree_add_oid(pt_name,k->hfid,tvb,name_offset, suboid_buf_len, suboid_buf); | |||
| 983 | ||||
| 984 | key_start += suboid_len; | |||
| 985 | key_len -= suboid_len + 1; | |||
| 986 | continue; /* k->next */ | |||
| 987 | } | |||
| 988 | default: { | |||
| 989 | uint8_t* buf; | |||
| 990 | unsigned buf_len; | |||
| 991 | uint32_t* suboid; | |||
| 992 | unsigned i; | |||
| 993 | ||||
| 994 | ||||
| 995 | switch (k->key_type) { | |||
| 996 | case OID_KEY_TYPE_IPADDR: | |||
| 997 | suboid = &(subids[key_start]); | |||
| 998 | buf_len = 4; | |||
| 999 | break; | |||
| 1000 | case OID_KEY_TYPE_IMPLIED_STRING: | |||
| 1001 | case OID_KEY_TYPE_IMPLIED_BYTES: | |||
| 1002 | case OID_KEY_TYPE_ETHER: | |||
| 1003 | suboid = &(subids[key_start]); | |||
| 1004 | buf_len = key_len; | |||
| 1005 | break; | |||
| 1006 | default: | |||
| 1007 | buf_len = k->num_subids; | |||
| 1008 | suboid = &(subids[key_start]); | |||
| 1009 | ||||
| 1010 | if(!buf_len) { | |||
| 1011 | buf_len = *suboid++; | |||
| 1012 | key_len--; | |||
| 1013 | key_start++; | |||
| 1014 | } | |||
| 1015 | break; | |||
| 1016 | } | |||
| 1017 | ||||
| 1018 | if( key_len < buf_len ) { | |||
| 1019 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_string_too_long,tvb,0,0); | |||
| 1020 | oid_info_is_ok = false0; | |||
| 1021 | goto indexing_done; | |||
| 1022 | } | |||
| 1023 | ||||
| 1024 | buf = (uint8_t*)wmem_alloc(actx->pinfo->pool, buf_len+1); | |||
| 1025 | for (i = 0; i < buf_len; i++) | |||
| 1026 | buf[i] = (uint8_t)suboid[i]; | |||
| 1027 | buf[i] = '\0'; | |||
| 1028 | ||||
| 1029 | switch(k->key_type) { | |||
| 1030 | case OID_KEY_TYPE_STRING: | |||
| 1031 | case OID_KEY_TYPE_IMPLIED_STRING: | |||
| 1032 | proto_tree_add_string(pt_name,k->hfid,tvb,name_offset,buf_len, (char*)buf); | |||
| 1033 | break; | |||
| 1034 | case OID_KEY_TYPE_BYTES: | |||
| 1035 | case OID_KEY_TYPE_NSAP: | |||
| 1036 | case OID_KEY_TYPE_IMPLIED_BYTES: | |||
| 1037 | proto_tree_add_bytes(pt_name,k->hfid,tvb,name_offset,buf_len, buf); | |||
| 1038 | break; | |||
| 1039 | case OID_KEY_TYPE_ETHER: | |||
| 1040 | proto_tree_add_ether(pt_name,k->hfid,tvb,name_offset,buf_len, buf); | |||
| 1041 | break; | |||
| 1042 | case OID_KEY_TYPE_IPADDR: { | |||
| 1043 | uint32_t* ipv4_p = (uint32_t*)buf; | |||
| 1044 | proto_tree_add_ipv4(pt_name,k->hfid,tvb,name_offset,buf_len, *ipv4_p); | |||
| 1045 | } | |||
| 1046 | break; | |||
| 1047 | default: | |||
| 1048 | DISSECTOR_ASSERT_NOT_REACHED()(proto_report_dissector_bug("%s:%u: failed assertion \"DISSECTOR_ASSERT_NOT_REACHED\"" , "epan/dissectors/packet-snmp.c", 1048)); | |||
| 1049 | break; | |||
| 1050 | } | |||
| 1051 | ||||
| 1052 | key_start += buf_len; | |||
| 1053 | key_len -= buf_len; | |||
| 1054 | continue; /* k->next*/ | |||
| 1055 | } | |||
| 1056 | } | |||
| 1057 | } | |||
| 1058 | goto indexing_done; | |||
| 1059 | } else { | |||
| 1060 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_unimplemented_instance_index,tvb,0,0); | |||
| 1061 | oid_info_is_ok = false0; | |||
| 1062 | goto indexing_done; | |||
| 1063 | } | |||
| 1064 | } else { | |||
| 1065 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_column_parent_not_row,tvb,0,0); | |||
| 1066 | oid_info_is_ok = false0; | |||
| 1067 | goto indexing_done; | |||
| 1068 | } | |||
| 1069 | default: { | |||
| 1070 | /* proto_tree_add_expert (pt_name,actx->pinfo,PI_MALFORMED, PI_WARN,tvb,0,0,"This kind OID should have no value"); */ | |||
| 1071 | oid_info_is_ok = false0; | |||
| 1072 | goto indexing_done; | |||
| 1073 | } | |||
| 1074 | } | |||
| 1075 | indexing_done: | |||
| 1076 | ||||
| 1077 | if (oid_info_is_ok && oid_info->value_type) { | |||
| 1078 | if (ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
| 1079 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
| 1080 | } else { | |||
| 1081 | /* Provide a tree_item to attach errors to, if needed. */ | |||
| 1082 | pi_value = pi_name; | |||
| 1083 | ||||
| 1084 | if ((oid_info->value_type->ber_class != BER_CLASS_ANY99) && | |||
| 1085 | (ber_class != oid_info->value_type->ber_class)) | |||
| 1086 | format_error = BER_WRONG_TAG; | |||
| 1087 | else if ((oid_info->value_type->ber_tag != BER_TAG_ANY-1) && | |||
| 1088 | (tag != oid_info->value_type->ber_tag)) | |||
| 1089 | format_error = BER_WRONG_TAG; | |||
| 1090 | else { | |||
| 1091 | max_len = oid_info->value_type->max_len == -1 ? 0xffffff : oid_info->value_type->max_len; | |||
| 1092 | min_len = oid_info->value_type->min_len; | |||
| 1093 | ||||
| 1094 | if ((int)value_len < min_len || (int)value_len > max_len) | |||
| 1095 | format_error = BER_WRONG_LENGTH; | |||
| 1096 | } | |||
| 1097 | ||||
| 1098 | if (format_error == BER_NO_ERROR) { | |||
| 1099 | /* Special case DATE AND TIME */ | |||
| 1100 | if((oid_info->value_type)&&(oid_info->value_type->keytype == OID_KEY_TYPE_DATE_AND_TIME)&&(value_len > 7)){ | |||
| 1101 | pi_value = dissect_snmp_variable_date_and_time(pt_varbind, actx->pinfo, oid_info->value_hfid, tvb, value_offset, value_len); | |||
| 1102 | } else { | |||
| 1103 | pi_value = proto_tree_add_item(pt_varbind,oid_info->value_hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
| 1104 | } | |||
| 1105 | } | |||
| 1106 | } | |||
| 1107 | } else { | |||
| 1108 | switch(ber_class|(tag<<4)) { | |||
| 1109 | case BER_CLASS_UNI0|(BER_UNI_TAG_INTEGER2<<4): | |||
| 1110 | { | |||
| 1111 | int64_t val=0; | |||
| 1112 | unsigned int int_val_offset = value_offset; | |||
| 1113 | unsigned int i; | |||
| 1114 | ||||
| 1115 | max_len = 4; min_len = 1; | |||
| 1116 | if (value_len > (unsigned)max_len || value_len < (unsigned)min_len) { | |||
| 1117 | hfid = hf_snmp_integer32_value; | |||
| 1118 | format_error = BER_WRONG_LENGTH; | |||
| 1119 | break; | |||
| 1120 | } | |||
| 1121 | ||||
| 1122 | if(value_len > 0) { | |||
| 1123 | /* extend sign bit */ | |||
| 1124 | if(tvb_get_uint8(tvb, int_val_offset)&0x80) { | |||
| 1125 | val=-1; | |||
| 1126 | } | |||
| 1127 | for(i=0;i<value_len;i++) { | |||
| 1128 | val=(val<<8)|tvb_get_uint8(tvb, int_val_offset); | |||
| 1129 | int_val_offset++; | |||
| 1130 | } | |||
| 1131 | } | |||
| 1132 | pi_value = proto_tree_add_int64(pt_varbind, hf_snmp_integer32_value, tvb,value_offset,value_len, val); | |||
| 1133 | ||||
| 1134 | goto already_added; | |||
| 1135 | } | |||
| 1136 | case BER_CLASS_UNI0|(BER_UNI_TAG_OCTETSTRING4<<4): | |||
| 1137 | if(oid_info->value_hfid> -1){ | |||
| 1138 | hfid = oid_info->value_hfid; | |||
| 1139 | }else{ | |||
| 1140 | hfid = hf_snmp_octetstring_value; | |||
| 1141 | } | |||
| 1142 | break; | |||
| 1143 | case BER_CLASS_UNI0|(BER_UNI_TAG_OID6<<4): | |||
| 1144 | max_len = -1; min_len = 1; | |||
| 1145 | if (value_len < (unsigned)min_len) format_error = BER_WRONG_LENGTH; | |||
| 1146 | hfid = hf_snmp_oid_value; | |||
| 1147 | break; | |||
| 1148 | case BER_CLASS_UNI0|(BER_UNI_TAG_NULL5<<4): | |||
| 1149 | max_len = 0; min_len = 0; | |||
| 1150 | if (value_len != 0) format_error = BER_WRONG_LENGTH; | |||
| 1151 | hfid = hf_snmp_null_value; | |||
| 1152 | break; | |||
| 1153 | case BER_CLASS_APP1: /* | (SNMP_IPA<<4)*/ | |||
| 1154 | switch(value_len) { | |||
| 1155 | case 4: hfid = hf_snmp_ipv4_value; break; | |||
| 1156 | case 16: hfid = hf_snmp_ipv6_value; break; | |||
| 1157 | default: hfid = hf_snmp_anyaddress_value; break; | |||
| 1158 | } | |||
| 1159 | break; | |||
| 1160 | case BER_CLASS_APP1|(SNMP_U327<<4): | |||
| 1161 | hfid = hf_snmp_unsigned32_value; | |||
| 1162 | break; | |||
| 1163 | case BER_CLASS_APP1|(SNMP_GGE2<<4): | |||
| 1164 | hfid = hf_snmp_gauge32_value; | |||
| 1165 | break; | |||
| 1166 | case BER_CLASS_APP1|(SNMP_CNT1<<4): | |||
| 1167 | hfid = hf_snmp_counter_value; | |||
| 1168 | break; | |||
| 1169 | case BER_CLASS_APP1|(SNMP_TIT3<<4): | |||
| 1170 | hfid = hf_snmp_timeticks_value; | |||
| 1171 | break; | |||
| 1172 | case BER_CLASS_APP1|(SNMP_OPQ4<<4): | |||
| 1173 | hfid = hf_snmp_opaque_value; | |||
| 1174 | break; | |||
| 1175 | case BER_CLASS_APP1|(SNMP_NSP5<<4): | |||
| 1176 | hfid = hf_snmp_nsap_value; | |||
| 1177 | break; | |||
| 1178 | case BER_CLASS_APP1|(SNMP_C646<<4): | |||
| 1179 | hfid = hf_snmp_big_counter_value; | |||
| 1180 | break; | |||
| 1181 | default: | |||
| 1182 | hfid = hf_snmp_unknown_value; | |||
| 1183 | break; | |||
| 1184 | } | |||
| 1185 | if (value_len > 8) { | |||
| 1186 | /* | |||
| 1187 | * Too long for an FT_UINT64 or an FT_INT64. | |||
| 1188 | */ | |||
| 1189 | header_field_info *hfinfo = proto_registrar_get_nth(hfid); | |||
| 1190 | if (hfinfo->type == FT_UINT64) { | |||
| 1191 | /* | |||
| 1192 | * Check if this is an unsigned int64 with | |||
| 1193 | * a big value. | |||
| 1194 | */ | |||
| 1195 | if (value_len > 9 || tvb_get_uint8(tvb, value_offset) != 0) { | |||
| 1196 | /* It is. Fail. */ | |||
| 1197 | proto_tree_add_expert_format(pt_varbind,actx->pinfo,&ei_snmp_uint_too_large,tvb,value_offset,value_len,"Integral value too large"); | |||
| 1198 | goto already_added; | |||
| 1199 | } | |||
| 1200 | /* Cheat and skip the leading 0 byte */ | |||
| 1201 | value_len--; | |||
| 1202 | value_offset++; | |||
| 1203 | } else if (hfinfo->type == FT_INT64) { | |||
| 1204 | /* | |||
| 1205 | * For now, just reject these. | |||
| 1206 | */ | |||
| 1207 | proto_tree_add_expert_format(pt_varbind,actx->pinfo,&ei_snmp_int_too_large,tvb,value_offset,value_len,"Integral value too large or too small"); | |||
| 1208 | goto already_added; | |||
| 1209 | } | |||
| 1210 | } else if (value_len == 0) { | |||
| 1211 | /* | |||
| 1212 | * X.690 section 8.3.1 "Encoding of an integer value": | |||
| 1213 | * "The encoding of an integer value shall be | |||
| 1214 | * primitive. The contents octets shall consist of | |||
| 1215 | * one or more octets." | |||
| 1216 | * | |||
| 1217 | * Zero is not "one or more". | |||
| 1218 | */ | |||
| 1219 | header_field_info *hfinfo = proto_registrar_get_nth(hfid); | |||
| 1220 | if (hfinfo->type == FT_UINT64 || hfinfo->type == FT_INT64) { | |||
| 1221 | proto_tree_add_expert_format(pt_varbind,actx->pinfo,&ei_snmp_integral_value0,tvb,value_offset,value_len,"Integral value is zero-length"); | |||
| 1222 | goto already_added; | |||
| 1223 | } | |||
| 1224 | } | |||
| 1225 | /* Special case DATE AND TIME */ | |||
| 1226 | if((oid_info->value_type)&&(oid_info->value_type->keytype == OID_KEY_TYPE_DATE_AND_TIME)&&(value_len > 7)){ | |||
| 1227 | pi_value = dissect_snmp_variable_date_and_time(pt_varbind, actx->pinfo, hfid, tvb, value_offset, value_len); | |||
| 1228 | }else{ | |||
| 1229 | pi_value = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
| 1230 | } | |||
| 1231 | if (format_error != BER_NO_ERROR) { | |||
| 1232 | expert_add_info(actx->pinfo, pi_value, &ei_snmp_missing_mib); | |||
| 1233 | } | |||
| 1234 | ||||
| 1235 | } | |||
| 1236 | already_added: | |||
| 1237 | pt_value = proto_item_add_subtree(pi_value,ett_value); | |||
| 1238 | ||||
| 1239 | if (value_len > 0 && oid_string) { | |||
| 1240 | tvbuff_t* sub_tvb = tvb_new_subset_length(tvb, value_offset, value_len); | |||
| 1241 | ||||
| 1242 | next_tvb_add_string(var_list, sub_tvb, (snmp_var_in_tree) ? pt_value : NULL((void*)0), value_sub_dissectors_table, oid_string); | |||
| 1243 | } | |||
| 1244 | ||||
| 1245 | ||||
| 1246 | set_label: | |||
| 1247 | if (pi_value) proto_item_fill_label(PITEM_FINFO(pi_value)((pi_value)->finfo), label, NULL((void*)0)); | |||
| 1248 | ||||
| 1249 | if (oid_info && oid_info->name) { | |||
| 1250 | if (oid_left >= 1) { | |||
| 1251 | repr = wmem_strdup_printf(actx->pinfo->pool, "%s.%s (%s)", oid_info->name, | |||
| 1252 | oid_subid2string(actx->pinfo->pool, &(subids[oid_matched]),oid_left), | |||
| 1253 | oid_subid2string(actx->pinfo->pool, subids,oid_matched+oid_left)); | |||
| 1254 | info_oid = wmem_strdup_printf(actx->pinfo->pool, "%s.%s", oid_info->name, | |||
| 1255 | oid_subid2string(actx->pinfo->pool, &(subids[oid_matched]),oid_left)); | |||
| 1256 | } else { | |||
| 1257 | repr = wmem_strdup_printf(actx->pinfo->pool, "%s (%s)", oid_info->name, | |||
| 1258 | oid_subid2string(actx->pinfo->pool, subids,oid_matched)); | |||
| 1259 | info_oid = oid_info->name; | |||
| 1260 | } | |||
| 1261 | } else if (oid_string) { | |||
| 1262 | repr = wmem_strdup(actx->pinfo->pool, oid_string); | |||
| 1263 | info_oid = oid_string; | |||
| 1264 | } else { | |||
| 1265 | repr = wmem_strdup(actx->pinfo->pool, "[Bad OID]"); | |||
| 1266 | } | |||
| 1267 | ||||
| 1268 | valstr = strstr(label,": "); | |||
| 1269 | valstr = valstr ? valstr+2 : label; | |||
| 1270 | ||||
| 1271 | proto_item_set_text(pi_varbind,"%s: %s",repr,valstr); | |||
| 1272 | ||||
| 1273 | if (display_oid && info_oid) { | |||
| 1274 | col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", info_oid); | |||
| 1275 | } | |||
| 1276 | ||||
| 1277 | switch (format_error) { | |||
| 1278 | case BER_WRONG_LENGTH: { | |||
| 1279 | proto_item* pi; | |||
| 1280 | proto_tree* p_tree = proto_item_add_subtree(pi_value,ett_decoding_error); | |||
| 1281 | pt = proto_tree_add_subtree_format(p_tree,tvb,0,0,ett_decoding_error,&pi, | |||
| 1282 | "Wrong value length: %u expecting: %u <= len <= %u", | |||
| 1283 | value_len, min_len, max_len == -1 ? 0xFFFFFF : max_len); | |||
| 1284 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_length_value); | |||
| 1285 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
| 1286 | } | |||
| 1287 | case BER_WRONG_TAG: { | |||
| 1288 | proto_item* pi; | |||
| 1289 | proto_tree* p_tree = proto_item_add_subtree(pi_value,ett_decoding_error); | |||
| 1290 | pt = proto_tree_add_subtree_format(p_tree,tvb,0,0,ett_decoding_error,&pi, | |||
| 1291 | "Wrong class/tag for Value expected: %d,%d got: %d,%d", | |||
| 1292 | oid_info->value_type->ber_class, oid_info->value_type->ber_tag, | |||
| 1293 | ber_class, tag); | |||
| 1294 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_class_tag); | |||
| 1295 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
| 1296 | } | |||
| 1297 | default: | |||
| 1298 | break; | |||
| 1299 | } | |||
| 1300 | ||||
| 1301 | return seq_offset + seq_len; | |||
| 1302 | } | |||
| 1303 | ||||
| 1304 | ||||
| 1305 | #define F_SNMP_ENGINEID_CONFORM0x80 0x80 | |||
| 1306 | #define SNMP_ENGINEID_RFC19100x00 0x00 | |||
| 1307 | #define SNMP_ENGINEID_RFC34110x01 0x01 | |||
| 1308 | ||||
| 1309 | static const true_false_string tfs_snmp_engineid_conform = { | |||
| 1310 | "RFC3411 (SNMPv3)", | |||
| 1311 | "RFC1910 (Non-SNMPv3)" | |||
| 1312 | }; | |||
| 1313 | ||||
| 1314 | #define SNMP_ENGINEID_FORMAT_IPV40x01 0x01 | |||
| 1315 | #define SNMP_ENGINEID_FORMAT_IPV60x02 0x02 | |||
| 1316 | #define SNMP_ENGINEID_FORMAT_MACADDRESS0x03 0x03 | |||
| 1317 | #define SNMP_ENGINEID_FORMAT_TEXT0x04 0x04 | |||
| 1318 | #define SNMP_ENGINEID_FORMAT_OCTETS0x05 0x05 | |||
| 1319 | #define SNMP_ENGINEID_FORMAT_LOCAL0x06 0x06 | |||
| 1320 | ||||
| 1321 | static const value_string snmp_engineid_format_vals[] = { | |||
| 1322 | { SNMP_ENGINEID_FORMAT_IPV40x01, "IPv4 address" }, | |||
| 1323 | { SNMP_ENGINEID_FORMAT_IPV60x02, "IPv6 address" }, | |||
| 1324 | { SNMP_ENGINEID_FORMAT_MACADDRESS0x03, "MAC address" }, | |||
| 1325 | { SNMP_ENGINEID_FORMAT_TEXT0x04, "Text, administratively assigned" }, | |||
| 1326 | { SNMP_ENGINEID_FORMAT_OCTETS0x05, "Octets, administratively assigned" }, | |||
| 1327 | { SNMP_ENGINEID_FORMAT_LOCAL0x06, "Local engine" }, | |||
| 1328 | { 0, NULL((void*)0) } | |||
| 1329 | }; | |||
| 1330 | ||||
| 1331 | #define SNMP_ENGINEID_CISCO_AGENT0x00 0x00 | |||
| 1332 | #define SNMP_ENGINEID_CISCO_MANAGER0x01 0x01 | |||
| 1333 | ||||
| 1334 | static const value_string snmp_engineid_cisco_type_vals[] = { | |||
| 1335 | { SNMP_ENGINEID_CISCO_AGENT0x00, "Agent" }, | |||
| 1336 | { SNMP_ENGINEID_CISCO_MANAGER0x01, "Manager" }, | |||
| 1337 | { 0, NULL((void*)0) } | |||
| 1338 | }; | |||
| 1339 | ||||
| 1340 | /* | |||
| 1341 | * SNMP Engine ID dissection according to RFC 3411 (SnmpEngineID TC) | |||
| 1342 | * or historic RFC 1910 (AgentID) | |||
| 1343 | */ | |||
| 1344 | int | |||
| 1345 | dissect_snmp_engineid(proto_tree *tree, packet_info *pinfo, tvbuff_t *tvb, int offset, int len) | |||
| 1346 | { | |||
| 1347 | proto_item *item = NULL((void*)0); | |||
| 1348 | uint8_t conformance, format; | |||
| 1349 | uint32_t enterpriseid; | |||
| 1350 | time_t seconds; | |||
| 1351 | nstime_t ts; | |||
| 1352 | int len_remain = len; | |||
| 1353 | ||||
| 1354 | /* first bit: engine id conformance */ | |||
| 1355 | if (len_remain<1) return offset; | |||
| 1356 | conformance = ((tvb_get_uint8(tvb, offset)>>7) & 0x01); | |||
| 1357 | proto_tree_add_item(tree, hf_snmp_engineid_conform, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000); | |||
| 1358 | ||||
| 1359 | /* 4-byte enterprise number/name */ | |||
| 1360 | if (len_remain<4) return offset; | |||
| 1361 | enterpriseid = tvb_get_ntohl(tvb, offset); | |||
| 1362 | if (conformance) | |||
| 1363 | enterpriseid -= 0x80000000; /* ignore first bit */ | |||
| 1364 | proto_tree_add_uint(tree, hf_snmp_engineid_enterprise, tvb, offset, 4, enterpriseid); | |||
| 1365 | offset+=4; | |||
| 1366 | len_remain-=4; | |||
| 1367 | ||||
| 1368 | switch(conformance) { | |||
| 1369 | ||||
| 1370 | case SNMP_ENGINEID_RFC19100x00: | |||
| 1371 | /* 12-byte AgentID w/ 8-byte trailer */ | |||
| 1372 | if (len_remain==8) { | |||
| 1373 | proto_tree_add_item(tree, hf_snmp_agentid_trailer, tvb, offset, 8, ENC_NA0x00000000); | |||
| 1374 | offset+=8; | |||
| 1375 | len_remain-=8; | |||
| 1376 | } else { | |||
| 1377 | proto_tree_add_expert(tree, pinfo, &ei_snmp_rfc1910_non_conformant, tvb, offset, len_remain); | |||
| 1378 | return offset; | |||
| 1379 | } | |||
| 1380 | break; | |||
| 1381 | ||||
| 1382 | case SNMP_ENGINEID_RFC34110x01: /* variable length: 5..32 */ | |||
| 1383 | ||||
| 1384 | /* 1-byte format specifier */ | |||
| 1385 | if (len_remain<1) return offset; | |||
| 1386 | format = tvb_get_uint8(tvb, offset); | |||
| 1387 | item = proto_tree_add_uint_format(tree, hf_snmp_engineid_format, tvb, offset, 1, format, "Engine ID Format: %s (%d)", | |||
| 1388 | val_to_str_const(format, snmp_engineid_format_vals, "Reserved/Enterprise-specific"), | |||
| 1389 | format); | |||
| 1390 | offset+=1; | |||
| 1391 | len_remain-=1; | |||
| 1392 | ||||
| 1393 | switch(format) { | |||
| 1394 | case SNMP_ENGINEID_FORMAT_IPV40x01: | |||
| 1395 | /* 4-byte IPv4 address */ | |||
| 1396 | if (len_remain==4) { | |||
| 1397 | proto_tree_add_item(tree, hf_snmp_engineid_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN0x00000000); | |||
| 1398 | offset+=4; | |||
| 1399 | len_remain=0; | |||
| 1400 | } | |||
| 1401 | break; | |||
| 1402 | case SNMP_ENGINEID_FORMAT_IPV60x02: | |||
| 1403 | /* 16-byte IPv6 address */ | |||
| 1404 | if (len_remain==16) { | |||
| 1405 | proto_tree_add_item(tree, hf_snmp_engineid_ipv6, tvb, offset, 16, ENC_NA0x00000000); | |||
| 1406 | offset+=16; | |||
| 1407 | len_remain=0; | |||
| 1408 | } | |||
| 1409 | break; | |||
| 1410 | case SNMP_ENGINEID_FORMAT_MACADDRESS0x03: | |||
| 1411 | /* See: https://supportforums.cisco.com/message/3010617#3010617 for details. */ | |||
| 1412 | if ((enterpriseid==9)&&(len_remain==7)) { | |||
| 1413 | proto_tree_add_item(tree, hf_snmp_engineid_cisco_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000); | |||
| 1414 | offset++; | |||
| 1415 | len_remain--; | |||
| 1416 | } | |||
| 1417 | /* 6-byte MAC address */ | |||
| 1418 | if (len_remain==6) { | |||
| 1419 | proto_tree_add_item(tree, hf_snmp_engineid_mac, tvb, offset, 6, ENC_NA0x00000000); | |||
| 1420 | offset+=6; | |||
| 1421 | len_remain=0; | |||
| 1422 | } | |||
| 1423 | break; | |||
| 1424 | case SNMP_ENGINEID_FORMAT_TEXT0x04: | |||
| 1425 | /* max. 27-byte string, administratively assigned */ | |||
| 1426 | if (len_remain<=27) { | |||
| 1427 | proto_tree_add_item(tree, hf_snmp_engineid_text, tvb, offset, len_remain, ENC_ASCII0x00000000); | |||
| 1428 | offset+=len_remain; | |||
| 1429 | len_remain=0; | |||
| 1430 | } | |||
| 1431 | break; | |||
| 1432 | case SNMP_ENGINEID_FORMAT_LOCAL0x06: | |||
| 1433 | break; | |||
| 1434 | case 128: | |||
| 1435 | /* most common enterprise-specific format: (ucd|net)-snmp random */ | |||
| 1436 | if ((enterpriseid==2021)||(enterpriseid==8072)) { | |||
| 1437 | proto_item_append_text(item, (enterpriseid==2021) ? ": UCD-SNMP Random" : ": Net-SNMP Random"); | |||
| 1438 | /* demystify: 4B random, 4B/8B epoch seconds */ | |||
| 1439 | if ((len_remain==8) || (len_remain==12)) { | |||
| 1440 | proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, 4, ENC_NA0x00000000); | |||
| 1441 | if (len_remain==8) { | |||
| 1442 | seconds = (time_t)tvb_get_letohl(tvb, offset + 4); | |||
| 1443 | } else { | |||
| 1444 | seconds = (time_t)tvb_get_letohi64(tvb, offset + 4); | |||
| 1445 | } | |||
| 1446 | ts.secs = seconds; | |||
| 1447 | ts.nsecs = 0; | |||
| 1448 | proto_tree_add_time_format_value(tree, hf_snmp_engineid_time, tvb, offset + 4, len_remain - 4, | |||
| 1449 | &ts, "%s", | |||
| 1450 | abs_time_secs_to_str(pinfo->pool, seconds, ABSOLUTE_TIME_LOCAL, true)abs_time_secs_to_str_ex(pinfo->pool, seconds, ABSOLUTE_TIME_LOCAL , (1) ? (1U << 0) : 0)); | |||
| 1451 | offset+=len_remain; | |||
| 1452 | len_remain=0; | |||
| 1453 | } | |||
| 1454 | break; | |||
| 1455 | } | |||
| 1456 | /* fall through */ | |||
| 1457 | case SNMP_ENGINEID_FORMAT_OCTETS0x05: | |||
| 1458 | default: | |||
| 1459 | /* max. 27 bytes, administratively assigned or unknown format */ | |||
| 1460 | if (len_remain>0 && len_remain<=27) { | |||
| 1461 | proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, len_remain, ENC_NA0x00000000); | |||
| 1462 | offset+=len_remain; | |||
| 1463 | len_remain=0; | |||
| 1464 | } | |||
| 1465 | break; | |||
| 1466 | } | |||
| 1467 | } | |||
| 1468 | ||||
| 1469 | if (len_remain>0) { | |||
| 1470 | proto_tree_add_expert(tree, pinfo, &ei_snmp_rfc3411_non_conformant, tvb, offset, len_remain); | |||
| 1471 | offset+=len_remain; | |||
| 1472 | } | |||
| 1473 | return offset; | |||
| 1474 | } | |||
| 1475 | ||||
| 1476 | ||||
| 1477 | static void set_ue_keys(snmp_ue_assoc_t* n ) { | |||
| 1478 | unsigned const key_size = auth_hash_len[n->user.authModel]; | |||
| 1479 | ||||
| 1480 | n->user.authKey.data = (uint8_t *)g_malloc(key_size); | |||
| 1481 | n->user.authKey.len = key_size; | |||
| 1482 | snmp_usm_password_to_key(n->user.authModel, | |||
| 1483 | n->user.authPassword.data, | |||
| 1484 | n->user.authPassword.len, | |||
| 1485 | n->engine.data, | |||
| 1486 | n->engine.len, | |||
| 1487 | n->user.authKey.data); | |||
| 1488 | ||||
| 1489 | if (n->priv_proto == PRIV_AES1281 || n->priv_proto == PRIV_AES1922 || n->priv_proto == PRIV_AES2563) { | |||
| 1490 | unsigned need_key_len = | |||
| 1491 | (n->priv_proto
| |||
| 1492 | (n->priv_proto
| |||
| 1493 | (n->priv_proto
| |||
| 1494 | 0; | |||
| 1495 | ||||
| 1496 | unsigned key_len = key_size; | |||
| 1497 | ||||
| 1498 | while (key_len < need_key_len) | |||
| 1499 | key_len += key_size; | |||
| 1500 | ||||
| 1501 | n->user.privKey.data = (uint8_t *)g_malloc(key_len); | |||
| 1502 | n->user.privKey.len = need_key_len; | |||
| 1503 | ||||
| 1504 | snmp_usm_password_to_key(n->user.authModel, | |||
| 1505 | n->user.privPassword.data, | |||
| 1506 | n->user.privPassword.len, | |||
| 1507 | n->engine.data, | |||
| 1508 | n->engine.len, | |||
| 1509 | n->user.privKey.data); | |||
| 1510 | ||||
| 1511 | key_len = key_size; | |||
| 1512 | ||||
| 1513 | /* extend key if needed */ | |||
| 1514 | while (key_len
| |||
| 1515 | switch (n->priv_key_exp) { | |||
| 1516 | /* Baed on draft-reeder-snmpv3-usm-3desede-00, section 2.1 */ | |||
| 1517 | case PRIVKEYEXP_USM_3DESDESEDE_000: | |||
| 1518 | { | |||
| 1519 | snmp_usm_password_to_key(n->user.authModel, | |||
| 1520 | n->user.privKey.data + (key_len - key_size), | |||
| 1521 | key_size, | |||
| 1522 | n->engine.data, | |||
| 1523 | n->engine.len, | |||
| 1524 | n->user.privKey.data + key_len); | |||
| 1525 | break; | |||
| 1526 | } | |||
| 1527 | /* Based on snmp++ method PrivAES::extend_short_key in Agent++ */ | |||
| 1528 | case PRIVKEYEXP_AGENTPP1: | |||
| 1529 | { | |||
| 1530 | /* Key expansion in Agent++ | |||
| 1531 | * K1 = key | |||
| 1532 | * K2 = hash(K1) | |||
| 1533 | * K3 = hash(K1 | K2) | |||
| 1534 | * localized_key = K1 | K2 | K3 | |||
| 1535 | */ | |||
| 1536 | gcry_md_hd_t hash_handle; | |||
| 1537 | ||||
| 1538 | if (gcry_md_open(&hash_handle, auth_hash_algo[n->user.authModel], 0)) { | |||
| 1539 | return; | |||
| 1540 | } | |||
| 1541 | ||||
| 1542 | gcry_md_write(hash_handle, n->user.privKey.data, key_len); | |||
| 1543 | memcpy(n->user.privKey.data + key_len, gcry_md_read(hash_handle, 0), key_size); | |||
| 1544 | gcry_md_close(hash_handle); | |||
| 1545 | ||||
| 1546 | break; | |||
| 1547 | } | |||
| 1548 | ||||
| 1549 | default: | |||
| 1550 | break; | |||
| 1551 | } | |||
| 1552 | ||||
| 1553 | key_len += key_size; | |||
| 1554 | } | |||
| 1555 | ||||
| 1556 | } else { | |||
| 1557 | n->user.privKey.data = (uint8_t *)g_malloc(key_size); | |||
| 1558 | n->user.privKey.len = key_size; | |||
| 1559 | snmp_usm_password_to_key(n->user.authModel, | |||
| 1560 | n->user.privPassword.data, | |||
| 1561 | n->user.privPassword.len, | |||
| 1562 | n->engine.data, | |||
| 1563 | n->engine.len, | |||
| 1564 | n->user.privKey.data); | |||
| 1565 | } | |||
| 1566 | } | |||
| 1567 | ||||
| 1568 | static snmp_ue_assoc_t* | |||
| 1569 | ue_dup(snmp_ue_assoc_t* o) | |||
| 1570 | { | |||
| 1571 | snmp_ue_assoc_t* d = (snmp_ue_assoc_t*)g_memdup2(o,sizeof(snmp_ue_assoc_t)); | |||
| 1572 | ||||
| 1573 | d->user.authModel = o->user.authModel; | |||
| 1574 | ||||
| 1575 | d->user.privProtocol = o->user.privProtocol; | |||
| 1576 | ||||
| 1577 | d->user.userName.data = (uint8_t *)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
| 1578 | d->user.userName.len = o->user.userName.len; | |||
| 1579 | ||||
| 1580 | d->user.authPassword.data = o->user.authPassword.data ? (uint8_t *)g_memdup2(o->user.authPassword.data,o->user.authPassword.len) : NULL((void*)0); | |||
| 1581 | d->user.authPassword.len = o->user.authPassword.len; | |||
| 1582 | ||||
| 1583 | d->user.privPassword.data = o->user.privPassword.data ? (uint8_t *)g_memdup2(o->user.privPassword.data,o->user.privPassword.len) : NULL((void*)0); | |||
| 1584 | d->user.privPassword.len = o->user.privPassword.len; | |||
| 1585 | ||||
| 1586 | d->engine.len = o->engine.len; | |||
| 1587 | ||||
| 1588 | if (d->engine.len) { | |||
| 1589 | d->engine.data = (uint8_t *)g_memdup2(o->engine.data,o->engine.len); | |||
| 1590 | set_ue_keys(d); | |||
| 1591 | } | |||
| 1592 | ||||
| 1593 | return d; | |||
| 1594 | ||||
| 1595 | } | |||
| 1596 | ||||
| 1597 | static void* | |||
| 1598 | snmp_users_copy_cb(void* dest, const void* orig, size_t len _U___attribute__((unused))) | |||
| 1599 | { | |||
| 1600 | const snmp_ue_assoc_t* o = (const snmp_ue_assoc_t*)orig; | |||
| 1601 | snmp_ue_assoc_t* d = (snmp_ue_assoc_t*)dest; | |||
| 1602 | ||||
| 1603 | d->auth_model = o->auth_model; | |||
| 1604 | d->user.authModel = (snmp_usm_auth_model_t) o->auth_model; | |||
| 1605 | ||||
| 1606 | d->priv_proto = o->priv_proto; | |||
| 1607 | d->user.privProtocol = priv_protos[o->priv_proto]; | |||
| 1608 | ||||
| 1609 | d->user.userName.data = (uint8_t*)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
| 1610 | d->user.userName.len = o->user.userName.len; | |||
| 1611 | ||||
| 1612 | d->user.authPassword.data = o->user.authPassword.data ? (uint8_t*)g_memdup2(o->user.authPassword.data,o->user.authPassword.len) : NULL((void*)0); | |||
| 1613 | d->user.authPassword.len = o->user.authPassword.len; | |||
| 1614 | ||||
| 1615 | d->user.privPassword.data = o->user.privPassword.data ? (uint8_t*)g_memdup2(o->user.privPassword.data,o->user.privPassword.len) : NULL((void*)0); | |||
| 1616 | d->user.privPassword.len = o->user.privPassword.len; | |||
| 1617 | ||||
| 1618 | d->engine.len = o->engine.len; | |||
| 1619 | if (o->engine.data) { | |||
| 1620 | d->engine.data = (uint8_t*)g_memdup2(o->engine.data,o->engine.len); | |||
| 1621 | } | |||
| 1622 | ||||
| 1623 | d->user.authKey.data = o->user.authKey.data ? (uint8_t*)g_memdup2(o->user.authKey.data,o->user.authKey.len) : NULL((void*)0); | |||
| 1624 | d->user.authKey.len = o->user.authKey.len; | |||
| 1625 | ||||
| 1626 | d->user.privKey.data = o->user.privKey.data ? (uint8_t*)g_memdup2(o->user.privKey.data,o->user.privKey.len) : NULL((void*)0); | |||
| 1627 | d->user.privKey.len = o->user.privKey.len; | |||
| 1628 | ||||
| 1629 | return d; | |||
| 1630 | } | |||
| 1631 | ||||
| 1632 | static void | |||
| 1633 | snmp_users_free_cb(void* p) | |||
| 1634 | { | |||
| 1635 | snmp_ue_assoc_t* ue = (snmp_ue_assoc_t*)p; | |||
| 1636 | g_free(ue->user.userName.data); | |||
| 1637 | g_free(ue->user.authPassword.data); | |||
| 1638 | g_free(ue->user.privPassword.data); | |||
| 1639 | g_free(ue->user.authKey.data); | |||
| 1640 | g_free(ue->user.privKey.data); | |||
| 1641 | g_free(ue->engine.data); | |||
| 1642 | } | |||
| 1643 | ||||
| 1644 | static bool_Bool | |||
| 1645 | snmp_users_update_cb(void* p _U___attribute__((unused)), char** err) | |||
| 1646 | { | |||
| 1647 | snmp_ue_assoc_t* ue = (snmp_ue_assoc_t*)p; | |||
| 1648 | GString* es = g_string_new(""); | |||
| 1649 | unsigned int i; | |||
| 1650 | ||||
| 1651 | *err = NULL((void*)0); | |||
| 1652 | ||||
| 1653 | if (! ue->user.userName.len) { | |||
| 1654 | g_string_append_printf(es,"no userName\n"); | |||
| 1655 | } else if ((ue->engine.len > 0) && (ue->engine.len < 5 || ue->engine.len > 32)) { | |||
| 1656 | /* RFC 3411 section 5 */ | |||
| 1657 | g_string_append_printf(es, "Invalid engineId length (%u). Must be between 5 and 32 (10 and 64 hex digits)\n", ue->engine.len); | |||
| 1658 | } else if (num_ueas) { | |||
| 1659 | for (i=0; i<num_ueas-1; i++) { | |||
| 1660 | snmp_ue_assoc_t* u = &(ueas[i]); | |||
| 1661 | ||||
| 1662 | if ( u->user.userName.len == ue->user.userName.len | |||
| 1663 | && u->engine.len == ue->engine.len && (u != ue)) { | |||
| 1664 | ||||
| 1665 | if (u->engine.len > 0 && memcmp( u->engine.data, ue->engine.data, u->engine.len ) == 0) { | |||
| 1666 | if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) { | |||
| 1667 | /* XXX: make a string for the engineId */ | |||
| 1668 | g_string_append_printf(es,"Duplicate key (userName='%s')\n",ue->user.userName.data); | |||
| 1669 | break; | |||
| 1670 | } | |||
| 1671 | } | |||
| 1672 | ||||
| 1673 | if (u->engine.len == 0) { | |||
| 1674 | if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) { | |||
| 1675 | g_string_append_printf(es,"Duplicate key (userName='%s' engineId=NONE)\n",ue->user.userName.data); | |||
| 1676 | break; | |||
| 1677 | } | |||
| 1678 | } | |||
| 1679 | } | |||
| 1680 | } | |||
| 1681 | } | |||
| 1682 | ||||
| 1683 | if (es->len) { | |||
| 1684 | es = g_string_truncate(es,es->len-1)g_string_truncate_inline (es, es->len-1); | |||
| 1685 | *err = g_string_free(es, FALSE)(__builtin_constant_p ((0)) ? (((0)) ? (g_string_free) ((es), ((0))) : g_string_free_and_steal (es)) : (g_string_free) ((es ), ((0)))); | |||
| 1686 | return false0; | |||
| 1687 | } | |||
| 1688 | ||||
| 1689 | g_string_free(es, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) ( (es), ((!(0)))) : g_string_free_and_steal (es)) : (g_string_free ) ((es), ((!(0))))); | |||
| 1690 | return true1; | |||
| 1691 | } | |||
| 1692 | ||||
| 1693 | static void | |||
| 1694 | free_ue_cache(snmp_ue_assoc_t **cache) | |||
| 1695 | { | |||
| 1696 | static snmp_ue_assoc_t *a, *nxt; | |||
| 1697 | ||||
| 1698 | for (a = *cache; a; a = nxt) { | |||
| 1699 | nxt = a->next; | |||
| 1700 | snmp_users_free_cb(a); | |||
| 1701 | g_free(a); | |||
| 1702 | } | |||
| 1703 | ||||
| 1704 | *cache = NULL((void*)0); | |||
| 1705 | } | |||
| 1706 | ||||
| 1707 | #define CACHE_INSERT(c,a)if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = ((void*)0); } if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = NULL((void*)0); } | |||
| 1708 | ||||
| 1709 | static void | |||
| 1710 | init_ue_cache(void) | |||
| 1711 | { | |||
| 1712 | unsigned i; | |||
| 1713 | ||||
| 1714 | for (i = 0; i < num_ueas; i++) { | |||
| 1715 | snmp_ue_assoc_t* a = ue_dup(&(ueas[i])); | |||
| 1716 | ||||
| 1717 | if (a->engine.len) { | |||
| 1718 | CACHE_INSERT(localized_ues,a)if (localized_ues) { snmp_ue_assoc_t* t = localized_ues; localized_ues = a; localized_ues->next = t; } else { localized_ues = a; a->next = ((void*)0); }; | |||
| 1719 | ||||
| 1720 | } else { | |||
| 1721 | CACHE_INSERT(unlocalized_ues,a)if (unlocalized_ues) { snmp_ue_assoc_t* t = unlocalized_ues; unlocalized_ues = a; unlocalized_ues->next = t; } else { unlocalized_ues = a; a->next = ((void*)0); }; | |||
| 1722 | } | |||
| 1723 | ||||
| 1724 | } | |||
| 1725 | } | |||
| 1726 | ||||
| 1727 | static void | |||
| 1728 | cleanup_ue_cache(void) | |||
| 1729 | { | |||
| 1730 | free_ue_cache(&localized_ues); | |||
| 1731 | free_ue_cache(&unlocalized_ues); | |||
| 1732 | } | |||
| 1733 | ||||
| 1734 | /* Called when the user applies changes to UAT preferences. */ | |||
| 1735 | static void | |||
| 1736 | renew_ue_cache(void) | |||
| 1737 | { | |||
| 1738 | cleanup_ue_cache(); | |||
| 1739 | init_ue_cache(); | |||
| 1740 | } | |||
| 1741 | ||||
| 1742 | ||||
| 1743 | static snmp_ue_assoc_t* | |||
| 1744 | localize_ue( snmp_ue_assoc_t* o, const uint8_t* engine, unsigned engine_len ) | |||
| 1745 | { | |||
| 1746 | snmp_ue_assoc_t* n = (snmp_ue_assoc_t*)g_memdup2(o,sizeof(snmp_ue_assoc_t)); | |||
| 1747 | ||||
| 1748 | n->user.userName.data = (uint8_t*)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
| 1749 | n->user.authModel = o->user.authModel; | |||
| 1750 | n->user.authPassword.data = (uint8_t*)g_memdup2(o->user.authPassword.data,o->user.authPassword.len); | |||
| 1751 | n->user.authPassword.len = o->user.authPassword.len; | |||
| 1752 | n->user.privPassword.data = (uint8_t*)g_memdup2(o->user.privPassword.data,o->user.privPassword.len); | |||
| 1753 | n->user.privPassword.len = o->user.privPassword.len; | |||
| 1754 | n->user.authKey.data = (uint8_t*)g_memdup2(o->user.authKey.data,o->user.authKey.len); | |||
| 1755 | n->user.privKey.data = (uint8_t*)g_memdup2(o->user.privKey.data,o->user.privKey.len); | |||
| 1756 | n->engine.data = (uint8_t*)g_memdup2(engine,engine_len); | |||
| 1757 | n->engine.len = engine_len; | |||
| 1758 | n->priv_proto = o->priv_proto; | |||
| 1759 | ||||
| 1760 | set_ue_keys(n); | |||
| 1761 | ||||
| 1762 | return n; | |||
| 1763 | } | |||
| 1764 | ||||
| 1765 | ||||
| 1766 | #define localized_match(a,u,ul,e,el)( a->user.userName.len == ul && a->engine.len == el && memcmp( a->user.userName.data, u, ul ) == 0 && memcmp( a->engine.data, e, el ) == 0 ) \ | |||
| 1767 | ( a->user.userName.len == ul \ | |||
| 1768 | && a->engine.len == el \ | |||
| 1769 | && memcmp( a->user.userName.data, u, ul ) == 0 \ | |||
| 1770 | && memcmp( a->engine.data, e, el ) == 0 ) | |||
| 1771 | ||||
| 1772 | #define unlocalized_match(a,u,l)( a->user.userName.len == l && memcmp( a->user. userName.data, u, l) == 0 ) \ | |||
| 1773 | ( a->user.userName.len == l && memcmp( a->user.userName.data, u, l) == 0 ) | |||
| 1774 | ||||
| 1775 | static snmp_ue_assoc_t* | |||
| 1776 | get_user_assoc(tvbuff_t* engine_tvb, tvbuff_t* user_tvb, packet_info *pinfo) | |||
| 1777 | { | |||
| 1778 | static snmp_ue_assoc_t* a; | |||
| 1779 | unsigned given_username_len; | |||
| 1780 | uint8_t* given_username; | |||
| 1781 | unsigned given_engine_len = 0; | |||
| 1782 | uint8_t* given_engine = NULL((void*)0); | |||
| 1783 | ||||
| 1784 | if ( ! (localized_ues || unlocalized_ues ) ) return NULL((void*)0); | |||
| 1785 | ||||
| 1786 | if (! ( user_tvb && engine_tvb ) ) return NULL((void*)0); | |||
| 1787 | ||||
| 1788 | given_username_len = tvb_captured_length(user_tvb); | |||
| 1789 | given_engine_len = tvb_captured_length(engine_tvb); | |||
| 1790 | if (! ( given_engine_len && given_username_len ) ) return NULL((void*)0); | |||
| 1791 | given_username = (uint8_t*)tvb_memdup(pinfo->pool, user_tvb, 0, given_username_len); | |||
| 1792 | given_engine = (uint8_t*)tvb_memdup(pinfo->pool, engine_tvb, 0, given_engine_len); | |||
| 1793 | ||||
| 1794 | for (a = localized_ues; a; a = a->next) { | |||
| 1795 | if ( localized_match(a, given_username, given_username_len, given_engine, given_engine_len)( a->user.userName.len == given_username_len && a-> engine.len == given_engine_len && memcmp( a->user. userName.data, given_username, given_username_len ) == 0 && memcmp( a->engine.data, given_engine, given_engine_len ) == 0 ) ) { | |||
| 1796 | return a; | |||
| 1797 | } | |||
| 1798 | } | |||
| 1799 | ||||
| 1800 | for (a = unlocalized_ues; a; a = a->next) { | |||
| 1801 | if ( unlocalized_match(a, given_username, given_username_len)( a->user.userName.len == given_username_len && memcmp ( a->user.userName.data, given_username, given_username_len ) == 0 ) ) { | |||
| 1802 | snmp_ue_assoc_t* n = localize_ue( a, given_engine, given_engine_len ); | |||
| 1803 | CACHE_INSERT(localized_ues,n)if (localized_ues) { snmp_ue_assoc_t* t = localized_ues; localized_ues = n; localized_ues->next = t; } else { localized_ues = n; n->next = ((void*)0); }; | |||
| 1804 | return n; | |||
| 1805 | } | |||
| 1806 | } | |||
| 1807 | ||||
| 1808 | return NULL((void*)0); | |||
| 1809 | } | |||
| 1810 | ||||
| 1811 | static bool_Bool | |||
| 1812 | snmp_usm_auth(const packet_info *pinfo, const snmp_usm_auth_model_t model, snmp_usm_params_t* p, uint8_t** calc_auth_p, | |||
| 1813 | unsigned* calc_auth_len_p, char const** error) | |||
| 1814 | { | |||
| 1815 | int msg_len; | |||
| 1816 | uint8_t* msg; | |||
| 1817 | unsigned auth_len; | |||
| 1818 | uint8_t* auth; | |||
| 1819 | uint8_t* key; | |||
| 1820 | unsigned key_len; | |||
| 1821 | uint8_t *calc_auth; | |||
| 1822 | unsigned start; | |||
| 1823 | unsigned end; | |||
| 1824 | unsigned i; | |||
| 1825 | ||||
| 1826 | if (!p->auth_tvb) { | |||
| 1827 | *error = "No Authenticator"; | |||
| 1828 | return false0; | |||
| 1829 | } | |||
| 1830 | ||||
| 1831 | key = p->user_assoc->user.authKey.data; | |||
| 1832 | key_len = p->user_assoc->user.authKey.len; | |||
| 1833 | ||||
| 1834 | if (! key ) { | |||
| 1835 | *error = "User has no authKey"; | |||
| 1836 | return false0; | |||
| 1837 | } | |||
| 1838 | ||||
| 1839 | auth_len = tvb_captured_length(p->auth_tvb); | |||
| 1840 | ||||
| 1841 | if (auth_len != auth_tag_len[model]) { | |||
| 1842 | *error = "Authenticator length wrong"; | |||
| 1843 | return false0; | |||
| 1844 | } | |||
| 1845 | ||||
| 1846 | msg_len = tvb_captured_length(p->msg_tvb); | |||
| 1847 | if (msg_len <= 0) { | |||
| 1848 | *error = "Not enough data remaining"; | |||
| 1849 | return false0; | |||
| 1850 | } | |||
| 1851 | msg = (uint8_t*)tvb_memdup(pinfo->pool,p->msg_tvb,0,msg_len); | |||
| 1852 | ||||
| 1853 | auth = (uint8_t*)tvb_memdup(pinfo->pool,p->auth_tvb,0,auth_len); | |||
| 1854 | ||||
| 1855 | start = p->auth_offset - p->start_offset; | |||
| 1856 | end = start + auth_len; | |||
| 1857 | ||||
| 1858 | /* fill the authenticator with zeros */ | |||
| 1859 | for ( i = start ; i < end ; i++ ) { | |||
| 1860 | msg[i] = '\0'; | |||
| 1861 | } | |||
| 1862 | ||||
| 1863 | calc_auth = (uint8_t*)wmem_alloc(pinfo->pool, auth_hash_len[model]); | |||
| 1864 | ||||
| 1865 | if (ws_hmac_buffer(auth_hash_algo[model], calc_auth, msg, msg_len, key, key_len)) { | |||
| 1866 | return false0; | |||
| 1867 | } | |||
| 1868 | ||||
| 1869 | if (calc_auth_p) *calc_auth_p = calc_auth; | |||
| 1870 | if (calc_auth_len_p) *calc_auth_len_p = auth_len; | |||
| 1871 | ||||
| 1872 | return ( memcmp(auth,calc_auth,auth_len) != 0 ) ? false0 : true1; | |||
| 1873 | } | |||
| 1874 | ||||
| 1875 | static tvbuff_t* | |||
| 1876 | snmp_usm_priv_des(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
| 1877 | { | |||
| 1878 | gcry_error_t err; | |||
| 1879 | gcry_cipher_hd_t hd = NULL((void*)0); | |||
| 1880 | ||||
| 1881 | uint8_t* cleartext; | |||
| 1882 | uint8_t* des_key = p->user_assoc->user.privKey.data; /* first 8 bytes */ | |||
| 1883 | uint8_t* pre_iv = &(p->user_assoc->user.privKey.data[8]); /* last 8 bytes */ | |||
| 1884 | uint8_t* salt; | |||
| 1885 | int salt_len; | |||
| 1886 | int cryptgrm_len; | |||
| 1887 | uint8_t* cryptgrm; | |||
| 1888 | tvbuff_t* clear_tvb; | |||
| 1889 | uint8_t iv[8]; | |||
| 1890 | unsigned i; | |||
| 1891 | ||||
| 1892 | ||||
| 1893 | salt_len = tvb_captured_length(p->priv_tvb); | |||
| 1894 | ||||
| 1895 | if (salt_len != 8) { | |||
| 1896 | *error = "decryptionError: msgPrivacyParameters length != 8"; | |||
| 1897 | return NULL((void*)0); | |||
| 1898 | } | |||
| 1899 | ||||
| 1900 | salt = (uint8_t*)tvb_memdup(pinfo->pool,p->priv_tvb,0,salt_len); | |||
| 1901 | ||||
| 1902 | /* | |||
| 1903 | The resulting "salt" is XOR-ed with the pre-IV to obtain the IV. | |||
| 1904 | */ | |||
| 1905 | for (i=0; i<8; i++) { | |||
| 1906 | iv[i] = pre_iv[i] ^ salt[i]; | |||
| 1907 | } | |||
| 1908 | ||||
| 1909 | cryptgrm_len = tvb_captured_length(encryptedData); | |||
| 1910 | ||||
| 1911 | if ((cryptgrm_len <= 0) || (cryptgrm_len % 8)) { | |||
| 1912 | *error = "decryptionError: the length of the encrypted data is not a multiple of 8 octets"; | |||
| 1913 | return NULL((void*)0); | |||
| 1914 | } | |||
| 1915 | ||||
| 1916 | cryptgrm = (uint8_t*)tvb_memdup(pinfo->pool, encryptedData, 0, cryptgrm_len); | |||
| 1917 | ||||
| 1918 | cleartext = (uint8_t*)wmem_alloc(pinfo->pool, cryptgrm_len); | |||
| 1919 | ||||
| 1920 | err = gcry_cipher_open(&hd, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_CBC, 0); | |||
| 1921 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1922 | ||||
| 1923 | err = gcry_cipher_setiv(hd, iv, 8); | |||
| 1924 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1925 | ||||
| 1926 | err = gcry_cipher_setkey(hd,des_key,8); | |||
| 1927 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1928 | ||||
| 1929 | err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len); | |||
| 1930 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1931 | ||||
| 1932 | gcry_cipher_close(hd); | |||
| 1933 | ||||
| 1934 | clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len); | |||
| 1935 | ||||
| 1936 | return clear_tvb; | |||
| 1937 | ||||
| 1938 | on_gcry_error: | |||
| 1939 | *error = (const char *)gcry_strerror(err); | |||
| 1940 | if (hd) gcry_cipher_close(hd); | |||
| 1941 | return NULL((void*)0); | |||
| 1942 | } | |||
| 1943 | ||||
| 1944 | static tvbuff_t* | |||
| 1945 | snmp_usm_priv_aes_common(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error, int algo) | |||
| 1946 | { | |||
| 1947 | gcry_error_t err; | |||
| 1948 | gcry_cipher_hd_t hd = NULL((void*)0); | |||
| 1949 | ||||
| 1950 | uint8_t* cleartext; | |||
| 1951 | uint8_t* aes_key = p->user_assoc->user.privKey.data; | |||
| 1952 | int aes_key_len = p->user_assoc->user.privKey.len; | |||
| 1953 | uint8_t iv[16]; | |||
| 1954 | int priv_len; | |||
| 1955 | int cryptgrm_len; | |||
| 1956 | uint8_t* cryptgrm; | |||
| 1957 | tvbuff_t* clear_tvb; | |||
| 1958 | ||||
| 1959 | priv_len = tvb_captured_length(p->priv_tvb); | |||
| 1960 | ||||
| 1961 | if (priv_len != 8) { | |||
| 1962 | *error = "decryptionError: msgPrivacyParameters length != 8"; | |||
| 1963 | return NULL((void*)0); | |||
| 1964 | } | |||
| 1965 | ||||
| 1966 | iv[0] = (p->boots & 0xff000000) >> 24; | |||
| 1967 | iv[1] = (p->boots & 0x00ff0000) >> 16; | |||
| 1968 | iv[2] = (p->boots & 0x0000ff00) >> 8; | |||
| 1969 | iv[3] = (p->boots & 0x000000ff); | |||
| 1970 | iv[4] = (p->snmp_time & 0xff000000) >> 24; | |||
| 1971 | iv[5] = (p->snmp_time & 0x00ff0000) >> 16; | |||
| 1972 | iv[6] = (p->snmp_time & 0x0000ff00) >> 8; | |||
| 1973 | iv[7] = (p->snmp_time & 0x000000ff); | |||
| 1974 | tvb_memcpy(p->priv_tvb,&(iv[8]),0,8); | |||
| 1975 | ||||
| 1976 | cryptgrm_len = tvb_captured_length(encryptedData); | |||
| 1977 | if (cryptgrm_len <= 0) { | |||
| 1978 | *error = "Not enough data remaining"; | |||
| 1979 | return NULL((void*)0); | |||
| 1980 | } | |||
| 1981 | cryptgrm = (uint8_t*)tvb_memdup(pinfo->pool, encryptedData, 0, cryptgrm_len); | |||
| 1982 | ||||
| 1983 | cleartext = (uint8_t*)wmem_alloc(pinfo->pool, cryptgrm_len); | |||
| 1984 | ||||
| 1985 | err = gcry_cipher_open(&hd, algo, GCRY_CIPHER_MODE_CFB, 0); | |||
| 1986 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1987 | ||||
| 1988 | err = gcry_cipher_setiv(hd, iv, 16); | |||
| 1989 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1990 | ||||
| 1991 | err = gcry_cipher_setkey(hd,aes_key,aes_key_len); | |||
| 1992 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1993 | ||||
| 1994 | err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len); | |||
| 1995 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
| 1996 | ||||
| 1997 | gcry_cipher_close(hd); | |||
| 1998 | ||||
| 1999 | clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len); | |||
| 2000 | ||||
| 2001 | return clear_tvb; | |||
| 2002 | ||||
| 2003 | on_gcry_error: | |||
| 2004 | *error = (const char *)gcry_strerror(err); | |||
| 2005 | if (hd) gcry_cipher_close(hd); | |||
| 2006 | return NULL((void*)0); | |||
| 2007 | } | |||
| 2008 | ||||
| 2009 | static tvbuff_t* | |||
| 2010 | snmp_usm_priv_aes128(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
| 2011 | { | |||
| 2012 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES); | |||
| 2013 | } | |||
| 2014 | ||||
| 2015 | static tvbuff_t* | |||
| 2016 | snmp_usm_priv_aes192(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
| 2017 | { | |||
| 2018 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES192); | |||
| 2019 | } | |||
| 2020 | ||||
| 2021 | static tvbuff_t* | |||
| 2022 | snmp_usm_priv_aes256(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
| 2023 | { | |||
| 2024 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES256); | |||
| 2025 | } | |||
| 2026 | ||||
| 2027 | static bool_Bool | |||
| 2028 | check_ScopedPdu(tvbuff_t* tvb) | |||
| 2029 | { | |||
| 2030 | int offset; | |||
| 2031 | int8_t ber_class; | |||
| 2032 | bool_Bool pc; | |||
| 2033 | int32_t tag; | |||
| 2034 | int hoffset, eoffset; | |||
| 2035 | uint32_t len; | |||
| 2036 | ||||
| 2037 | offset = get_ber_identifier(tvb, 0, &ber_class, &pc, &tag); | |||
| 2038 | offset = get_ber_length(tvb, offset, NULL((void*)0), NULL((void*)0)); | |||
| 2039 | ||||
| 2040 | if ( ! (((ber_class!=BER_CLASS_APP1) && (ber_class!=BER_CLASS_PRI3) ) | |||
| 2041 | && ( (!pc) || (ber_class!=BER_CLASS_UNI0) || (tag!=BER_UNI_TAG_ENUMERATED10) ) | |||
| 2042 | )) return false0; | |||
| 2043 | ||||
| 2044 | if((tvb_get_uint8(tvb, offset)==0)&&(tvb_get_uint8(tvb, offset+1)==0)) | |||
| 2045 | return true1; | |||
| 2046 | ||||
| 2047 | hoffset = offset; | |||
| 2048 | ||||
| 2049 | offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag); | |||
| 2050 | offset = get_ber_length(tvb, offset, &len, NULL((void*)0)); | |||
| 2051 | eoffset = offset + len; | |||
| 2052 | ||||
| 2053 | if (eoffset <= hoffset) return false0; | |||
| 2054 | ||||
| 2055 | if ((ber_class!=BER_CLASS_APP1)&&(ber_class!=BER_CLASS_PRI3)) | |||
| 2056 | if( (ber_class!=BER_CLASS_UNI0) | |||
| 2057 | ||((tag<BER_UNI_TAG_NumericString18)&&(tag!=BER_UNI_TAG_OCTETSTRING4)&&(tag!=BER_UNI_TAG_UTF8String12)) ) | |||
| 2058 | return false0; | |||
| 2059 | ||||
| 2060 | return true1; | |||
| 2061 | ||||
| 2062 | } | |||
| 2063 | ||||
| 2064 | ||||
| 2065 | ||||
| 2066 | ||||
| 2067 | static unsigned | |||
| 2068 | dissect_snmp_EnterpriseOID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2069 | const char* name; | |||
| 2070 | ||||
| 2071 | offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_index, &enterprise_oid); | |||
| 2072 | ||||
| 2073 | ||||
| 2074 | if (display_oid && enterprise_oid) { | |||
| 2075 | name = oid_resolved_from_string(actx->pinfo->pool, enterprise_oid); | |||
| 2076 | if (name) { | |||
| 2077 | col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", name); | |||
| 2078 | } | |||
| 2079 | } | |||
| 2080 | ||||
| 2081 | ||||
| 2082 | return offset; | |||
| 2083 | } | |||
| 2084 | ||||
| 2085 | ||||
| 2086 | ||||
| 2087 | static unsigned | |||
| 2088 | dissect_snmp_OCTET_STRING_SIZE_4(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2089 | offset = dissect_ber_constrained_octet_string(implicit_tag, actx, tree, tvb, offset, | |||
| 2090 | 4, 4, hf_index, NULL((void*)0)); | |||
| 2091 | ||||
| 2092 | return offset; | |||
| 2093 | } | |||
| 2094 | ||||
| 2095 | ||||
| 2096 | ||||
| 2097 | static unsigned | |||
| 2098 | dissect_snmp_NetworkAddress(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2099 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2100 | hf_index, BER_CLASS_APP1, 0, true1, dissect_snmp_OCTET_STRING_SIZE_4); | |||
| 2101 | ||||
| 2102 | return offset; | |||
| 2103 | } | |||
| 2104 | ||||
| 2105 | ||||
| 2106 | ||||
| 2107 | static unsigned | |||
| 2108 | dissect_snmp_INTEGER_0_4294967295(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2109 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2110 | 0U, 4294967295U, hf_index, NULL((void*)0)); | |||
| 2111 | ||||
| 2112 | return offset; | |||
| 2113 | } | |||
| 2114 | ||||
| 2115 | ||||
| 2116 | ||||
| 2117 | static unsigned | |||
| 2118 | dissect_snmp_TimeTicks(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2119 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2120 | hf_index, BER_CLASS_APP1, 3, true1, dissect_snmp_INTEGER_0_4294967295); | |||
| 2121 | ||||
| 2122 | return offset; | |||
| 2123 | } | |||
| 2124 | ||||
| 2125 | ||||
| 2126 | ||||
| 2127 | static unsigned | |||
| 2128 | dissect_snmp_Integer32(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2129 | ||||
| 2130 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2131 | INT32_MIN(-2147483647-1), 2147483647U, hf_index, &RequestID); | |||
| 2132 | ||||
| 2133 | ||||
| 2134 | ||||
| 2135 | return offset; | |||
| 2136 | } | |||
| 2137 | ||||
| 2138 | ||||
| 2139 | ||||
| 2140 | static unsigned | |||
| 2141 | dissect_snmp_ObjectName(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2142 | offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL((void*)0)); | |||
| 2143 | ||||
| 2144 | return offset; | |||
| 2145 | } | |||
| 2146 | ||||
| 2147 | ||||
| 2148 | static const value_string snmp_Version_vals[] = { | |||
| 2149 | { 0, "version-1" }, | |||
| 2150 | { 1, "v2c" }, | |||
| 2151 | { 2, "v2u" }, | |||
| 2152 | { 3, "snmpv3" }, | |||
| 2153 | { 0, NULL((void*)0) } | |||
| 2154 | }; | |||
| 2155 | ||||
| 2156 | ||||
| 2157 | static unsigned | |||
| 2158 | dissect_snmp_Version(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2159 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2160 | &snmp_version); | |||
| 2161 | ||||
| 2162 | return offset; | |||
| 2163 | } | |||
| 2164 | ||||
| 2165 | ||||
| 2166 | ||||
| 2167 | static unsigned | |||
| 2168 | dissect_snmp_Community(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2169 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2170 | NULL((void*)0)); | |||
| 2171 | ||||
| 2172 | return offset; | |||
| 2173 | } | |||
| 2174 | ||||
| 2175 | ||||
| 2176 | ||||
| 2177 | static unsigned | |||
| 2178 | dissect_snmp_T_request_id(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2179 | ||||
| 2180 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2181 | &RequestID); | |||
| 2182 | ||||
| 2183 | ||||
| 2184 | ||||
| 2185 | return offset; | |||
| 2186 | } | |||
| 2187 | ||||
| 2188 | ||||
| 2189 | static const value_string snmp_T_error_status_vals[] = { | |||
| 2190 | { 0, "noError" }, | |||
| 2191 | { 1, "tooBig" }, | |||
| 2192 | { 2, "noSuchName" }, | |||
| 2193 | { 3, "badValue" }, | |||
| 2194 | { 4, "readOnly" }, | |||
| 2195 | { 5, "genErr" }, | |||
| 2196 | { 6, "noAccess" }, | |||
| 2197 | { 7, "wrongType" }, | |||
| 2198 | { 8, "wrongLength" }, | |||
| 2199 | { 9, "wrongEncoding" }, | |||
| 2200 | { 10, "wrongValue" }, | |||
| 2201 | { 11, "noCreation" }, | |||
| 2202 | { 12, "inconsistentValue" }, | |||
| 2203 | { 13, "resourceUnavailable" }, | |||
| 2204 | { 14, "commitFailed" }, | |||
| 2205 | { 15, "undoFailed" }, | |||
| 2206 | { 16, "authorizationError" }, | |||
| 2207 | { 17, "notWritable" }, | |||
| 2208 | { 18, "inconsistentName" }, | |||
| 2209 | { 0, NULL((void*)0) } | |||
| 2210 | }; | |||
| 2211 | ||||
| 2212 | ||||
| 2213 | static unsigned | |||
| 2214 | dissect_snmp_T_error_status(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2215 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2216 | NULL((void*)0)); | |||
| 2217 | ||||
| 2218 | return offset; | |||
| 2219 | } | |||
| 2220 | ||||
| 2221 | ||||
| 2222 | ||||
| 2223 | static unsigned | |||
| 2224 | dissect_snmp_INTEGER(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2225 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2226 | NULL((void*)0)); | |||
| 2227 | ||||
| 2228 | return offset; | |||
| 2229 | } | |||
| 2230 | ||||
| 2231 | ||||
| 2232 | ||||
| 2233 | static const ber_sequence_t VarBindList_sequence_of[1] = { | |||
| 2234 | { &hf_snmp_VarBindList_item, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBind }, | |||
| 2235 | }; | |||
| 2236 | ||||
| 2237 | static unsigned | |||
| 2238 | dissect_snmp_VarBindList(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2239 | offset = dissect_ber_sequence_of(implicit_tag, actx, tree, tvb, offset, | |||
| 2240 | VarBindList_sequence_of, hf_index, ett_snmp_VarBindList); | |||
| 2241 | ||||
| 2242 | return offset; | |||
| 2243 | } | |||
| 2244 | ||||
| 2245 | ||||
| 2246 | static const ber_sequence_t PDU_sequence[] = { | |||
| 2247 | { &hf_snmp_request_id , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_request_id }, | |||
| 2248 | { &hf_snmp_error_status , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_error_status }, | |||
| 2249 | { &hf_snmp_error_index , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER }, | |||
| 2250 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
| 2251 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2252 | }; | |||
| 2253 | ||||
| 2254 | static unsigned | |||
| 2255 | dissect_snmp_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2256 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2257 | PDU_sequence, hf_index, ett_snmp_PDU); | |||
| 2258 | ||||
| 2259 | return offset; | |||
| 2260 | } | |||
| 2261 | ||||
| 2262 | ||||
| 2263 | ||||
| 2264 | static unsigned | |||
| 2265 | dissect_snmp_GetRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2266 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2267 | hf_index, BER_CLASS_CON2, 0, true1, dissect_snmp_PDU); | |||
| 2268 | ||||
| 2269 | return offset; | |||
| 2270 | } | |||
| 2271 | ||||
| 2272 | ||||
| 2273 | ||||
| 2274 | static unsigned | |||
| 2275 | dissect_snmp_GetNextRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2276 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2277 | hf_index, BER_CLASS_CON2, 1, true1, dissect_snmp_PDU); | |||
| 2278 | ||||
| 2279 | return offset; | |||
| 2280 | } | |||
| 2281 | ||||
| 2282 | ||||
| 2283 | ||||
| 2284 | static unsigned | |||
| 2285 | dissect_snmp_GetResponse_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2286 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2287 | hf_index, BER_CLASS_CON2, 2, true1, dissect_snmp_PDU); | |||
| 2288 | ||||
| 2289 | return offset; | |||
| 2290 | } | |||
| 2291 | ||||
| 2292 | ||||
| 2293 | ||||
| 2294 | static unsigned | |||
| 2295 | dissect_snmp_SetRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2296 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2297 | hf_index, BER_CLASS_CON2, 3, true1, dissect_snmp_PDU); | |||
| 2298 | ||||
| 2299 | return offset; | |||
| 2300 | } | |||
| 2301 | ||||
| 2302 | ||||
| 2303 | static const value_string snmp_GenericTrap_vals[] = { | |||
| 2304 | { 0, "coldStart" }, | |||
| 2305 | { 1, "warmStart" }, | |||
| 2306 | { 2, "linkDown" }, | |||
| 2307 | { 3, "linkUp" }, | |||
| 2308 | { 4, "authenticationFailure" }, | |||
| 2309 | { 5, "egpNeighborLoss" }, | |||
| 2310 | { 6, "enterpriseSpecific" }, | |||
| 2311 | { 0, NULL((void*)0) } | |||
| 2312 | }; | |||
| 2313 | ||||
| 2314 | ||||
| 2315 | static unsigned | |||
| 2316 | dissect_snmp_GenericTrap(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2317 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2318 | &generic_trap); | |||
| 2319 | ||||
| 2320 | return offset; | |||
| 2321 | } | |||
| 2322 | ||||
| 2323 | ||||
| 2324 | ||||
| 2325 | static unsigned | |||
| 2326 | dissect_snmp_SpecificTrap(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2327 | unsigned specific_trap; | |||
| 2328 | ||||
| 2329 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2330 | &specific_trap); | |||
| 2331 | ||||
| 2332 | ||||
| 2333 | if (generic_trap == 6) { /* enterprise specific */ | |||
| 2334 | const char *specific_str = snmp_lookup_specific_trap (specific_trap); | |||
| 2335 | if (specific_str) { | |||
| 2336 | proto_item_append_text(actx->created_item, " (%s)", specific_str); | |||
| 2337 | } | |||
| 2338 | } | |||
| 2339 | ||||
| 2340 | return offset; | |||
| 2341 | } | |||
| 2342 | ||||
| 2343 | ||||
| 2344 | static const ber_sequence_t Trap_PDU_U_sequence[] = { | |||
| 2345 | { &hf_snmp_enterprise , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_EnterpriseOID }, | |||
| 2346 | { &hf_snmp_agent_addr , BER_CLASS_APP1, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_NetworkAddress }, | |||
| 2347 | { &hf_snmp_generic_trap , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GenericTrap }, | |||
| 2348 | { &hf_snmp_specific_trap , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SpecificTrap }, | |||
| 2349 | { &hf_snmp_time_stamp , BER_CLASS_APP1, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_TimeTicks }, | |||
| 2350 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
| 2351 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2352 | }; | |||
| 2353 | ||||
| 2354 | static unsigned | |||
| 2355 | dissect_snmp_Trap_PDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2356 | generic_trap = 0; | |||
| 2357 | enterprise_oid = NULL((void*)0); | |||
| 2358 | ||||
| 2359 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2360 | Trap_PDU_U_sequence, hf_index, ett_snmp_Trap_PDU_U); | |||
| 2361 | ||||
| 2362 | ||||
| 2363 | if (snmp_version != 0) { | |||
| 2364 | expert_add_info(actx->pinfo, tree, &ei_snmp_trap_pdu_obsolete); | |||
| 2365 | } | |||
| 2366 | ||||
| 2367 | ||||
| 2368 | return offset; | |||
| 2369 | } | |||
| 2370 | ||||
| 2371 | ||||
| 2372 | ||||
| 2373 | static unsigned | |||
| 2374 | dissect_snmp_Trap_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2375 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2376 | hf_index, BER_CLASS_CON2, 4, true1, dissect_snmp_Trap_PDU_U); | |||
| 2377 | ||||
| 2378 | return offset; | |||
| 2379 | } | |||
| 2380 | ||||
| 2381 | ||||
| 2382 | ||||
| 2383 | static unsigned | |||
| 2384 | dissect_snmp_INTEGER_0_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2385 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2386 | 0U, 2147483647U, hf_index, NULL((void*)0)); | |||
| 2387 | ||||
| 2388 | return offset; | |||
| 2389 | } | |||
| 2390 | ||||
| 2391 | ||||
| 2392 | static const ber_sequence_t BulkPDU_sequence[] = { | |||
| 2393 | { &hf_snmp_request_id_01 , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Integer32 }, | |||
| 2394 | { &hf_snmp_non_repeaters , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
| 2395 | { &hf_snmp_max_repetitions, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
| 2396 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
| 2397 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2398 | }; | |||
| 2399 | ||||
| 2400 | static unsigned | |||
| 2401 | dissect_snmp_BulkPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2402 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2403 | BulkPDU_sequence, hf_index, ett_snmp_BulkPDU); | |||
| 2404 | ||||
| 2405 | return offset; | |||
| 2406 | } | |||
| 2407 | ||||
| 2408 | ||||
| 2409 | ||||
| 2410 | static unsigned | |||
| 2411 | dissect_snmp_GetBulkRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2412 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2413 | hf_index, BER_CLASS_CON2, 5, true1, dissect_snmp_BulkPDU); | |||
| 2414 | ||||
| 2415 | return offset; | |||
| 2416 | } | |||
| 2417 | ||||
| 2418 | ||||
| 2419 | ||||
| 2420 | static unsigned | |||
| 2421 | dissect_snmp_InformRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2422 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2423 | hf_index, BER_CLASS_CON2, 6, true1, dissect_snmp_PDU); | |||
| 2424 | ||||
| 2425 | return offset; | |||
| 2426 | } | |||
| 2427 | ||||
| 2428 | ||||
| 2429 | ||||
| 2430 | static unsigned | |||
| 2431 | dissect_snmp_SNMPv2_Trap_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2432 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2433 | hf_index, BER_CLASS_CON2, 7, true1, dissect_snmp_PDU); | |||
| 2434 | ||||
| 2435 | return offset; | |||
| 2436 | } | |||
| 2437 | ||||
| 2438 | ||||
| 2439 | ||||
| 2440 | static unsigned | |||
| 2441 | dissect_snmp_Report_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2442 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2443 | hf_index, BER_CLASS_CON2, 8, true1, dissect_snmp_PDU); | |||
| 2444 | ||||
| 2445 | return offset; | |||
| 2446 | } | |||
| 2447 | ||||
| 2448 | ||||
| 2449 | static const value_string snmp_PDUs_vals[] = { | |||
| 2450 | { 0, "get-request" }, | |||
| 2451 | { 1, "get-next-request" }, | |||
| 2452 | { 2, "get-response" }, | |||
| 2453 | { 3, "set-request" }, | |||
| 2454 | { 4, "trap" }, | |||
| 2455 | { 5, "getBulkRequest" }, | |||
| 2456 | { 6, "informRequest" }, | |||
| 2457 | { 7, "snmpV2-trap" }, | |||
| 2458 | { 8, "report" }, | |||
| 2459 | { 0, NULL((void*)0) } | |||
| 2460 | }; | |||
| 2461 | ||||
| 2462 | static const ber_choice_t PDUs_choice[] = { | |||
| 2463 | { 0, &hf_snmp_get_request , BER_CLASS_CON2, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetRequest_PDU }, | |||
| 2464 | { 1, &hf_snmp_get_next_request, BER_CLASS_CON2, 1, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetNextRequest_PDU }, | |||
| 2465 | { 2, &hf_snmp_get_response , BER_CLASS_CON2, 2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetResponse_PDU }, | |||
| 2466 | { 3, &hf_snmp_set_request , BER_CLASS_CON2, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SetRequest_PDU }, | |||
| 2467 | { 4, &hf_snmp_trap , BER_CLASS_CON2, 4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Trap_PDU }, | |||
| 2468 | { 5, &hf_snmp_getBulkRequest , BER_CLASS_CON2, 5, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetBulkRequest_PDU }, | |||
| 2469 | { 6, &hf_snmp_informRequest , BER_CLASS_CON2, 6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_InformRequest_PDU }, | |||
| 2470 | { 7, &hf_snmp_snmpV2_trap , BER_CLASS_CON2, 7, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SNMPv2_Trap_PDU }, | |||
| 2471 | { 8, &hf_snmp_report , BER_CLASS_CON2, 8, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Report_PDU }, | |||
| 2472 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2473 | }; | |||
| 2474 | ||||
| 2475 | static unsigned | |||
| 2476 | dissect_snmp_PDUs(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2477 | int pdu_type=-1; | |||
| 2478 | ||||
| 2479 | snmp_request_response_t *srrp; | |||
| 2480 | snmp_conv_info_t *snmp_info = (snmp_conv_info_t *)actx->private_data; | |||
| 2481 | ||||
| 2482 | col_clear(actx->pinfo->cinfo, COL_INFO); | |||
| 2483 | ||||
| 2484 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 2485 | PDUs_choice, hf_index, ett_snmp_PDUs, | |||
| 2486 | &pdu_type); | |||
| 2487 | ||||
| 2488 | if( (pdu_type!=-1) && snmp_PDUs_vals[pdu_type].strptr ){ | |||
| 2489 | col_prepend_fstr(actx->pinfo->cinfo, COL_INFO, "%s", snmp_PDUs_vals[pdu_type].strptr); | |||
| 2490 | ||||
| 2491 | /* pdu_type is the index, not the tag so convert it to the tag value */ | |||
| 2492 | pdu_type = snmp_PDUs_vals[pdu_type].value; | |||
| 2493 | ||||
| 2494 | srrp=snmp_match_request_response(tvb, actx->pinfo, tree, RequestID, pdu_type, snmp_info); | |||
| 2495 | if (srrp) { | |||
| 2496 | tap_queue_packet(snmp_tap, actx->pinfo, srrp); | |||
| 2497 | } | |||
| 2498 | } | |||
| 2499 | ||||
| 2500 | ||||
| 2501 | ||||
| 2502 | return offset; | |||
| 2503 | } | |||
| 2504 | ||||
| 2505 | ||||
| 2506 | static const ber_sequence_t Message_sequence[] = { | |||
| 2507 | { &hf_snmp_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
| 2508 | { &hf_snmp_community , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Community }, | |||
| 2509 | { &hf_snmp_data , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_PDUs }, | |||
| 2510 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2511 | }; | |||
| 2512 | ||||
| 2513 | static unsigned | |||
| 2514 | dissect_snmp_Message(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2515 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2516 | Message_sequence, hf_index, ett_snmp_Message); | |||
| 2517 | ||||
| 2518 | return offset; | |||
| 2519 | } | |||
| 2520 | ||||
| 2521 | ||||
| 2522 | ||||
| 2523 | static unsigned | |||
| 2524 | dissect_snmp_OCTET_STRING(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2525 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2526 | NULL((void*)0)); | |||
| 2527 | ||||
| 2528 | return offset; | |||
| 2529 | } | |||
| 2530 | ||||
| 2531 | ||||
| 2532 | static const value_string snmp_T_datav2u_vals[] = { | |||
| 2533 | { 0, "plaintext" }, | |||
| 2534 | { 1, "encrypted" }, | |||
| 2535 | { 0, NULL((void*)0) } | |||
| 2536 | }; | |||
| 2537 | ||||
| 2538 | static const ber_choice_t T_datav2u_choice[] = { | |||
| 2539 | { 0, &hf_snmp_v2u_plaintext , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_PDUs }, | |||
| 2540 | { 1, &hf_snmp_encrypted , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
| 2541 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2542 | }; | |||
| 2543 | ||||
| 2544 | static unsigned | |||
| 2545 | dissect_snmp_T_datav2u(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2546 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 2547 | T_datav2u_choice, hf_index, ett_snmp_T_datav2u, | |||
| 2548 | NULL((void*)0)); | |||
| 2549 | ||||
| 2550 | return offset; | |||
| 2551 | } | |||
| 2552 | ||||
| 2553 | ||||
| 2554 | static const ber_sequence_t Messagev2u_sequence[] = { | |||
| 2555 | { &hf_snmp_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
| 2556 | { &hf_snmp_parameters , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
| 2557 | { &hf_snmp_datav2u , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_T_datav2u }, | |||
| 2558 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2559 | }; | |||
| 2560 | ||||
| 2561 | static unsigned | |||
| 2562 | dissect_snmp_Messagev2u(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2563 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2564 | Messagev2u_sequence, hf_index, ett_snmp_Messagev2u); | |||
| 2565 | ||||
| 2566 | return offset; | |||
| 2567 | } | |||
| 2568 | ||||
| 2569 | ||||
| 2570 | ||||
| 2571 | static unsigned | |||
| 2572 | dissect_snmp_SnmpEngineID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2573 | tvbuff_t* param_tvb = NULL((void*)0); | |||
| 2574 | ||||
| 2575 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, ¶m_tvb); | |||
| 2576 | if (param_tvb) { | |||
| 2577 | proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid); | |||
| 2578 | dissect_snmp_engineid(engine_tree, actx->pinfo, param_tvb, 0, tvb_reported_length_remaining(param_tvb,0)); | |||
| 2579 | } | |||
| 2580 | ||||
| 2581 | ||||
| 2582 | return offset; | |||
| 2583 | } | |||
| 2584 | ||||
| 2585 | ||||
| 2586 | ||||
| 2587 | static unsigned | |||
| 2588 | dissect_snmp_T_msgAuthoritativeEngineID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2589 | ||||
| 2590 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, &usm_p.engine_tvb); | |||
| 2591 | if (usm_p.engine_tvb) { | |||
| 2592 | proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid); | |||
| 2593 | dissect_snmp_engineid(engine_tree, actx->pinfo, usm_p.engine_tvb, 0, tvb_reported_length_remaining(usm_p.engine_tvb,0)); | |||
| 2594 | } | |||
| 2595 | ||||
| 2596 | ||||
| 2597 | return offset; | |||
| 2598 | } | |||
| 2599 | ||||
| 2600 | ||||
| 2601 | ||||
| 2602 | static unsigned | |||
| 2603 | dissect_snmp_T_msgAuthoritativeEngineBoots(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2604 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2605 | 0U, 2147483647U, hf_index, &usm_p.boots); | |||
| 2606 | ||||
| 2607 | return offset; | |||
| 2608 | } | |||
| 2609 | ||||
| 2610 | ||||
| 2611 | ||||
| 2612 | static unsigned | |||
| 2613 | dissect_snmp_T_msgAuthoritativeEngineTime(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2614 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2615 | 0U, 2147483647U, hf_index, &usm_p.snmp_time); | |||
| 2616 | ||||
| 2617 | return offset; | |||
| 2618 | } | |||
| 2619 | ||||
| 2620 | ||||
| 2621 | ||||
| 2622 | static unsigned | |||
| 2623 | dissect_snmp_T_msgUserName(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2624 | offset = dissect_ber_constrained_octet_string(implicit_tag, actx, tree, tvb, offset, | |||
| 2625 | 1, 32, hf_index, &usm_p.user_tvb); | |||
| 2626 | ||||
| 2627 | return offset; | |||
| 2628 | } | |||
| 2629 | ||||
| 2630 | ||||
| 2631 | ||||
| 2632 | static unsigned | |||
| 2633 | dissect_snmp_T_msgAuthenticationParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2634 | offset = dissect_ber_octet_string(false0, actx, tree, tvb, offset, hf_index, &usm_p.auth_tvb); | |||
| 2635 | if (usm_p.auth_tvb) { | |||
| 2636 | usm_p.auth_item = actx->created_item; | |||
| 2637 | usm_p.auth_offset = tvb_offset_from_real_beginning(usm_p.auth_tvb); | |||
| 2638 | } | |||
| 2639 | ||||
| 2640 | return offset; | |||
| 2641 | } | |||
| 2642 | ||||
| 2643 | ||||
| 2644 | ||||
| 2645 | static unsigned | |||
| 2646 | dissect_snmp_T_msgPrivacyParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2647 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2648 | &usm_p.priv_tvb); | |||
| 2649 | ||||
| 2650 | return offset; | |||
| 2651 | } | |||
| 2652 | ||||
| 2653 | ||||
| 2654 | static const ber_sequence_t UsmSecurityParameters_sequence[] = { | |||
| 2655 | { &hf_snmp_msgAuthoritativeEngineID, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineID }, | |||
| 2656 | { &hf_snmp_msgAuthoritativeEngineBoots, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineBoots }, | |||
| 2657 | { &hf_snmp_msgAuthoritativeEngineTime, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineTime }, | |||
| 2658 | { &hf_snmp_msgUserName , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgUserName }, | |||
| 2659 | { &hf_snmp_msgAuthenticationParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthenticationParameters }, | |||
| 2660 | { &hf_snmp_msgPrivacyParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgPrivacyParameters }, | |||
| 2661 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2662 | }; | |||
| 2663 | ||||
| 2664 | static unsigned | |||
| 2665 | dissect_snmp_UsmSecurityParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2666 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2667 | UsmSecurityParameters_sequence, hf_index, ett_snmp_UsmSecurityParameters); | |||
| 2668 | ||||
| 2669 | return offset; | |||
| 2670 | } | |||
| 2671 | ||||
| 2672 | ||||
| 2673 | ||||
| 2674 | static unsigned | |||
| 2675 | dissect_snmp_INTEGER_484_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2676 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2677 | 484U, 2147483647U, hf_index, NULL((void*)0)); | |||
| 2678 | ||||
| 2679 | return offset; | |||
| 2680 | } | |||
| 2681 | ||||
| 2682 | ||||
| 2683 | ||||
| 2684 | static unsigned | |||
| 2685 | dissect_snmp_T_msgFlags(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2686 | tvbuff_t *parameter_tvb = NULL((void*)0); | |||
| 2687 | ||||
| 2688 | offset = dissect_ber_constrained_octet_string(implicit_tag, actx, tree, tvb, offset, | |||
| 2689 | 1, 1, hf_index, ¶meter_tvb); | |||
| 2690 | ||||
| 2691 | if (parameter_tvb){ | |||
| 2692 | uint8_t v3_flags = tvb_get_uint8(parameter_tvb, 0); | |||
| 2693 | proto_tree* flags_tree = proto_item_add_subtree(actx->created_item,ett_msgFlags); | |||
| 2694 | ||||
| 2695 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_report, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
| 2696 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_crypt, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
| 2697 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_auth, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
| 2698 | ||||
| 2699 | usm_p.encrypted = v3_flags & TH_CRYPT0x02 ? true1 : false0; | |||
| 2700 | usm_p.authenticated = v3_flags & TH_AUTH0x01 ? true1 : false0; | |||
| 2701 | } | |||
| 2702 | ||||
| 2703 | ||||
| 2704 | ||||
| 2705 | return offset; | |||
| 2706 | } | |||
| 2707 | ||||
| 2708 | ||||
| 2709 | ||||
| 2710 | static unsigned | |||
| 2711 | dissect_snmp_T_msgSecurityModel(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2712 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 2713 | 1U, 2147483647U, hf_index, &MsgSecurityModel); | |||
| 2714 | ||||
| 2715 | return offset; | |||
| 2716 | } | |||
| 2717 | ||||
| 2718 | ||||
| 2719 | static const ber_sequence_t HeaderData_sequence[] = { | |||
| 2720 | { &hf_snmp_msgID , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
| 2721 | { &hf_snmp_msgMaxSize , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_484_2147483647 }, | |||
| 2722 | { &hf_snmp_msgFlags , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgFlags }, | |||
| 2723 | { &hf_snmp_msgSecurityModel, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgSecurityModel }, | |||
| 2724 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2725 | }; | |||
| 2726 | ||||
| 2727 | static unsigned | |||
| 2728 | dissect_snmp_HeaderData(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2729 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2730 | HeaderData_sequence, hf_index, ett_snmp_HeaderData); | |||
| 2731 | ||||
| 2732 | return offset; | |||
| 2733 | } | |||
| 2734 | ||||
| 2735 | ||||
| 2736 | ||||
| 2737 | static unsigned | |||
| 2738 | dissect_snmp_T_msgSecurityParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2739 | ||||
| 2740 | switch(MsgSecurityModel){ | |||
| ||||
| 2741 | case SNMP_SEC_USM3: /* 3 */ | |||
| 2742 | offset = get_ber_identifier(tvb, offset, NULL((void*)0), NULL((void*)0), NULL((void*)0)); | |||
| 2743 | offset = get_ber_length(tvb, offset, NULL((void*)0), NULL((void*)0)); | |||
| 2744 | offset = dissect_snmp_UsmSecurityParameters(false0, tvb, offset, actx, tree, -1); | |||
| 2745 | usm_p.user_assoc = get_user_assoc(usm_p.engine_tvb, usm_p.user_tvb, actx->pinfo); | |||
| 2746 | break; | |||
| 2747 | case SNMP_SEC_ANY0: /* 0 */ | |||
| 2748 | case SNMP_SEC_V11: /* 1 */ | |||
| 2749 | case SNMP_SEC_V2C2: /* 2 */ | |||
| 2750 | default: | |||
| 2751 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2752 | NULL((void*)0)); | |||
| 2753 | ||||
| 2754 | break; | |||
| 2755 | } | |||
| 2756 | ||||
| 2757 | ||||
| 2758 | return offset; | |||
| 2759 | } | |||
| 2760 | ||||
| 2761 | ||||
| 2762 | static const ber_sequence_t ScopedPDU_sequence[] = { | |||
| 2763 | { &hf_snmp_contextEngineID, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SnmpEngineID }, | |||
| 2764 | { &hf_snmp_contextName , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
| 2765 | { &hf_snmp_data , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_PDUs }, | |||
| 2766 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2767 | }; | |||
| 2768 | ||||
| 2769 | static unsigned | |||
| 2770 | dissect_snmp_ScopedPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2771 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2772 | ScopedPDU_sequence, hf_index, ett_snmp_ScopedPDU); | |||
| 2773 | ||||
| 2774 | return offset; | |||
| 2775 | } | |||
| 2776 | ||||
| 2777 | ||||
| 2778 | ||||
| 2779 | static unsigned | |||
| 2780 | dissect_snmp_T_encryptedPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2781 | tvbuff_t* crypt_tvb; | |||
| 2782 | offset = dissect_ber_octet_string(false0, actx, tree, tvb, offset, hf_snmp_encryptedPDU, &crypt_tvb); | |||
| 2783 | ||||
| 2784 | if( usm_p.encrypted && crypt_tvb | |||
| 2785 | && usm_p.user_assoc | |||
| 2786 | && usm_p.user_assoc->user.privProtocol ) { | |||
| 2787 | ||||
| 2788 | const char* error = NULL((void*)0); | |||
| 2789 | proto_tree* encryptedpdu_tree = proto_item_add_subtree(actx->created_item,ett_encryptedPDU); | |||
| 2790 | tvbuff_t* cleartext_tvb = usm_p.user_assoc->user.privProtocol(&usm_p, crypt_tvb, actx->pinfo, &error ); | |||
| 2791 | ||||
| 2792 | if (! cleartext_tvb) { | |||
| 2793 | proto_tree_add_expert_format_remaining(encryptedpdu_tree, actx->pinfo, &ei_snmp_failed_decrypted_data_pdu, | |||
| 2794 | crypt_tvb, 0, "Failed to decrypt encryptedPDU: %s", error); | |||
| 2795 | ||||
| 2796 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Failed to decrypt"); | |||
| 2797 | ||||
| 2798 | return offset; | |||
| 2799 | } else { | |||
| 2800 | proto_item* decrypted_item; | |||
| 2801 | proto_tree* decrypted_tree; | |||
| 2802 | ||||
| 2803 | if (! check_ScopedPdu(cleartext_tvb)) { | |||
| 2804 | proto_tree_add_expert_remaining(encryptedpdu_tree, actx->pinfo, &ei_snmp_decrypted_data_bad_formatted, cleartext_tvb, 0); | |||
| 2805 | ||||
| 2806 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Decrypted data not formatted as expected"); | |||
| 2807 | ||||
| 2808 | return offset; | |||
| 2809 | } | |||
| 2810 | ||||
| 2811 | ||||
| 2812 | add_new_data_source(actx->pinfo, cleartext_tvb, "Decrypted ScopedPDU"); | |||
| 2813 | ||||
| 2814 | decrypted_item = proto_tree_add_item(encryptedpdu_tree, hf_snmp_decryptedPDU,cleartext_tvb,0,-1,ENC_NA0x00000000); | |||
| 2815 | decrypted_tree = proto_item_add_subtree(decrypted_item,ett_decrypted); | |||
| 2816 | dissect_snmp_ScopedPDU(false0, cleartext_tvb, 0, actx, decrypted_tree, -1); | |||
| 2817 | } | |||
| 2818 | } else { | |||
| 2819 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: privKey Unknown"); | |||
| 2820 | } | |||
| 2821 | ||||
| 2822 | ||||
| 2823 | return offset; | |||
| 2824 | } | |||
| 2825 | ||||
| 2826 | ||||
| 2827 | static const value_string snmp_ScopedPduData_vals[] = { | |||
| 2828 | { 0, "plaintext" }, | |||
| 2829 | { 1, "encryptedPDU" }, | |||
| 2830 | { 0, NULL((void*)0) } | |||
| 2831 | }; | |||
| 2832 | ||||
| 2833 | static const ber_choice_t ScopedPduData_choice[] = { | |||
| 2834 | { 0, &hf_snmp_plaintext , BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ScopedPDU }, | |||
| 2835 | { 1, &hf_snmp_encryptedPDU , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_encryptedPDU }, | |||
| 2836 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2837 | }; | |||
| 2838 | ||||
| 2839 | static unsigned | |||
| 2840 | dissect_snmp_ScopedPduData(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2841 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 2842 | ScopedPduData_choice, hf_index, ett_snmp_ScopedPduData, | |||
| 2843 | NULL((void*)0)); | |||
| 2844 | ||||
| 2845 | return offset; | |||
| 2846 | } | |||
| 2847 | ||||
| 2848 | ||||
| 2849 | static const ber_sequence_t SNMPv3Message_sequence[] = { | |||
| 2850 | { &hf_snmp_msgVersion , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
| 2851 | { &hf_snmp_msgGlobalData , BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_HeaderData }, | |||
| 2852 | { &hf_snmp_msgSecurityParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgSecurityParameters }, | |||
| 2853 | { &hf_snmp_msgData , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_ScopedPduData }, | |||
| 2854 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2855 | }; | |||
| 2856 | ||||
| 2857 | static unsigned | |||
| 2858 | dissect_snmp_SNMPv3Message(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2859 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2860 | SNMPv3Message_sequence, hf_index, ett_snmp_SNMPv3Message); | |||
| 2861 | ||||
| 2862 | ||||
| 2863 | if( usm_p.authenticated | |||
| 2864 | && usm_p.user_assoc ) { | |||
| 2865 | const char* error = NULL((void*)0); | |||
| 2866 | proto_item* authen_item; | |||
| 2867 | proto_tree* authen_tree = proto_item_add_subtree(usm_p.auth_item,ett_authParameters); | |||
| 2868 | uint8_t* calc_auth = NULL((void*)0); | |||
| 2869 | unsigned calc_auth_len = 0; | |||
| 2870 | ||||
| 2871 | usm_p.authOK = snmp_usm_auth(actx->pinfo, usm_p.user_assoc->user.authModel, &usm_p, &calc_auth, &calc_auth_len, &error ); | |||
| 2872 | ||||
| 2873 | if (error) { | |||
| 2874 | expert_add_info_format( actx->pinfo, usm_p.auth_item, &ei_snmp_verify_authentication_error, "Error while verifying Message authenticity: %s", error ); | |||
| 2875 | } else { | |||
| 2876 | expert_field* expert; | |||
| 2877 | ||||
| 2878 | authen_item = proto_tree_add_boolean(authen_tree, hf_snmp_msgAuthentication, tvb, 0, 0, usm_p.authOK); | |||
| 2879 | proto_item_set_generated(authen_item); | |||
| 2880 | ||||
| 2881 | if (usm_p.authOK) { | |||
| 2882 | expert = &ei_snmp_authentication_ok; | |||
| 2883 | } else { | |||
| 2884 | const char* calc_auth_str = bytes_to_str_punct(actx->pinfo->pool, calc_auth,calc_auth_len,' ')bytes_to_str_punct_maxlen(actx->pinfo->pool, calc_auth, calc_auth_len, ' ', 24); | |||
| 2885 | proto_item_append_text(authen_item, " calculated = %s", calc_auth_str); | |||
| 2886 | expert = &ei_snmp_authentication_error; | |||
| 2887 | } | |||
| 2888 | ||||
| 2889 | expert_add_info( actx->pinfo, authen_item, expert); | |||
| 2890 | } | |||
| 2891 | } | |||
| 2892 | ||||
| 2893 | return offset; | |||
| 2894 | } | |||
| 2895 | ||||
| 2896 | ||||
| 2897 | static const value_string snmp_T_smux_version_vals[] = { | |||
| 2898 | { 0, "version-1" }, | |||
| 2899 | { 0, NULL((void*)0) } | |||
| 2900 | }; | |||
| 2901 | ||||
| 2902 | ||||
| 2903 | static unsigned | |||
| 2904 | dissect_snmp_T_smux_version(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2905 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2906 | NULL((void*)0)); | |||
| 2907 | ||||
| 2908 | return offset; | |||
| 2909 | } | |||
| 2910 | ||||
| 2911 | ||||
| 2912 | ||||
| 2913 | static unsigned | |||
| 2914 | dissect_snmp_OBJECT_IDENTIFIER(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2915 | offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL((void*)0)); | |||
| 2916 | ||||
| 2917 | return offset; | |||
| 2918 | } | |||
| 2919 | ||||
| 2920 | ||||
| 2921 | ||||
| 2922 | static unsigned | |||
| 2923 | dissect_snmp_DisplayString(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2924 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2925 | NULL((void*)0)); | |||
| 2926 | ||||
| 2927 | return offset; | |||
| 2928 | } | |||
| 2929 | ||||
| 2930 | ||||
| 2931 | static const ber_sequence_t SimpleOpen_U_sequence[] = { | |||
| 2932 | { &hf_snmp_smux_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_smux_version }, | |||
| 2933 | { &hf_snmp_identity , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OBJECT_IDENTIFIER }, | |||
| 2934 | { &hf_snmp_description , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_DisplayString }, | |||
| 2935 | { &hf_snmp_password , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
| 2936 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2937 | }; | |||
| 2938 | ||||
| 2939 | static unsigned | |||
| 2940 | dissect_snmp_SimpleOpen_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2941 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 2942 | SimpleOpen_U_sequence, hf_index, ett_snmp_SimpleOpen_U); | |||
| 2943 | ||||
| 2944 | return offset; | |||
| 2945 | } | |||
| 2946 | ||||
| 2947 | ||||
| 2948 | ||||
| 2949 | static unsigned | |||
| 2950 | dissect_snmp_SimpleOpen(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2951 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 2952 | hf_index, BER_CLASS_APP1, 0, true1, dissect_snmp_SimpleOpen_U); | |||
| 2953 | ||||
| 2954 | return offset; | |||
| 2955 | } | |||
| 2956 | ||||
| 2957 | ||||
| 2958 | static const value_string snmp_OpenPDU_vals[] = { | |||
| 2959 | { 0, "smux-simple" }, | |||
| 2960 | { 0, NULL((void*)0) } | |||
| 2961 | }; | |||
| 2962 | ||||
| 2963 | static const ber_choice_t OpenPDU_choice[] = { | |||
| 2964 | { 0, &hf_snmp_smux_simple , BER_CLASS_APP1, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SimpleOpen }, | |||
| 2965 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 2966 | }; | |||
| 2967 | ||||
| 2968 | static unsigned | |||
| 2969 | dissect_snmp_OpenPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2970 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 2971 | OpenPDU_choice, hf_index, ett_snmp_OpenPDU, | |||
| 2972 | NULL((void*)0)); | |||
| 2973 | ||||
| 2974 | return offset; | |||
| 2975 | } | |||
| 2976 | ||||
| 2977 | ||||
| 2978 | static const value_string snmp_ClosePDU_U_vals[] = { | |||
| 2979 | { 0, "goingDown" }, | |||
| 2980 | { 1, "unsupportedVersion" }, | |||
| 2981 | { 2, "packetFormat" }, | |||
| 2982 | { 3, "protocolError" }, | |||
| 2983 | { 4, "internalError" }, | |||
| 2984 | { 5, "authenticationFailure" }, | |||
| 2985 | { 0, NULL((void*)0) } | |||
| 2986 | }; | |||
| 2987 | ||||
| 2988 | ||||
| 2989 | static unsigned | |||
| 2990 | dissect_snmp_ClosePDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 2991 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 2992 | NULL((void*)0)); | |||
| 2993 | ||||
| 2994 | return offset; | |||
| 2995 | } | |||
| 2996 | ||||
| 2997 | ||||
| 2998 | ||||
| 2999 | static unsigned | |||
| 3000 | dissect_snmp_ClosePDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3001 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 3002 | hf_index, BER_CLASS_APP1, 1, true1, dissect_snmp_ClosePDU_U); | |||
| 3003 | ||||
| 3004 | return offset; | |||
| 3005 | } | |||
| 3006 | ||||
| 3007 | ||||
| 3008 | ||||
| 3009 | static unsigned | |||
| 3010 | dissect_snmp_INTEGER_M1_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3011 | offset = dissect_ber_constrained_integer(implicit_tag, actx, tree, tvb, offset, | |||
| 3012 | -1, 2147483647U, hf_index, NULL((void*)0)); | |||
| 3013 | ||||
| 3014 | return offset; | |||
| 3015 | } | |||
| 3016 | ||||
| 3017 | ||||
| 3018 | static const value_string snmp_T_operation_vals[] = { | |||
| 3019 | { 0, "delete" }, | |||
| 3020 | { 1, "readOnly" }, | |||
| 3021 | { 2, "readWrite" }, | |||
| 3022 | { 0, NULL((void*)0) } | |||
| 3023 | }; | |||
| 3024 | ||||
| 3025 | ||||
| 3026 | static unsigned | |||
| 3027 | dissect_snmp_T_operation(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3028 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 3029 | NULL((void*)0)); | |||
| 3030 | ||||
| 3031 | return offset; | |||
| 3032 | } | |||
| 3033 | ||||
| 3034 | ||||
| 3035 | static const ber_sequence_t RReqPDU_U_sequence[] = { | |||
| 3036 | { &hf_snmp_subtree , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ObjectName }, | |||
| 3037 | { &hf_snmp_priority , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_M1_2147483647 }, | |||
| 3038 | { &hf_snmp_operation , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_operation }, | |||
| 3039 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 3040 | }; | |||
| 3041 | ||||
| 3042 | static unsigned | |||
| 3043 | dissect_snmp_RReqPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3044 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
| 3045 | RReqPDU_U_sequence, hf_index, ett_snmp_RReqPDU_U); | |||
| 3046 | ||||
| 3047 | return offset; | |||
| 3048 | } | |||
| 3049 | ||||
| 3050 | ||||
| 3051 | ||||
| 3052 | static unsigned | |||
| 3053 | dissect_snmp_RReqPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3054 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 3055 | hf_index, BER_CLASS_APP1, 2, true1, dissect_snmp_RReqPDU_U); | |||
| 3056 | ||||
| 3057 | return offset; | |||
| 3058 | } | |||
| 3059 | ||||
| 3060 | ||||
| 3061 | static const value_string snmp_RRspPDU_U_vals[] = { | |||
| 3062 | { -1, "failure" }, | |||
| 3063 | { 0, NULL((void*)0) } | |||
| 3064 | }; | |||
| 3065 | ||||
| 3066 | ||||
| 3067 | static unsigned | |||
| 3068 | dissect_snmp_RRspPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3069 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 3070 | NULL((void*)0)); | |||
| 3071 | ||||
| 3072 | return offset; | |||
| 3073 | } | |||
| 3074 | ||||
| 3075 | ||||
| 3076 | ||||
| 3077 | static unsigned | |||
| 3078 | dissect_snmp_RRspPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3079 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 3080 | hf_index, BER_CLASS_APP1, 3, true1, dissect_snmp_RRspPDU_U); | |||
| 3081 | ||||
| 3082 | return offset; | |||
| 3083 | } | |||
| 3084 | ||||
| 3085 | ||||
| 3086 | static const value_string snmp_RegisterResponse_vals[] = { | |||
| 3087 | { 0, "rRspPDU" }, | |||
| 3088 | { 1, "pDUs" }, | |||
| 3089 | { 0, NULL((void*)0) } | |||
| 3090 | }; | |||
| 3091 | ||||
| 3092 | static const ber_choice_t RegisterResponse_choice[] = { | |||
| 3093 | { 0, &hf_snmp_rRspPDU , BER_CLASS_APP1, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RRspPDU }, | |||
| 3094 | { 1, &hf_snmp_pDUs , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_PDUs }, | |||
| 3095 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 3096 | }; | |||
| 3097 | ||||
| 3098 | static unsigned | |||
| 3099 | dissect_snmp_RegisterResponse(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3100 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 3101 | RegisterResponse_choice, hf_index, ett_snmp_RegisterResponse, | |||
| 3102 | NULL((void*)0)); | |||
| 3103 | ||||
| 3104 | return offset; | |||
| 3105 | } | |||
| 3106 | ||||
| 3107 | ||||
| 3108 | static const value_string snmp_SOutPDU_U_vals[] = { | |||
| 3109 | { 0, "commit" }, | |||
| 3110 | { 1, "rollback" }, | |||
| 3111 | { 0, NULL((void*)0) } | |||
| 3112 | }; | |||
| 3113 | ||||
| 3114 | ||||
| 3115 | static unsigned | |||
| 3116 | dissect_snmp_SOutPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3117 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
| 3118 | NULL((void*)0)); | |||
| 3119 | ||||
| 3120 | return offset; | |||
| 3121 | } | |||
| 3122 | ||||
| 3123 | ||||
| 3124 | ||||
| 3125 | static unsigned | |||
| 3126 | dissect_snmp_SOutPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3127 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
| 3128 | hf_index, BER_CLASS_APP1, 4, true1, dissect_snmp_SOutPDU_U); | |||
| 3129 | ||||
| 3130 | return offset; | |||
| 3131 | } | |||
| 3132 | ||||
| 3133 | ||||
| 3134 | static const value_string snmp_SMUX_PDUs_vals[] = { | |||
| 3135 | { 0, "open" }, | |||
| 3136 | { 1, "close" }, | |||
| 3137 | { 2, "registerRequest" }, | |||
| 3138 | { 3, "registerResponse" }, | |||
| 3139 | { 4, "commitOrRollback" }, | |||
| 3140 | { 0, NULL((void*)0) } | |||
| 3141 | }; | |||
| 3142 | ||||
| 3143 | static const ber_choice_t SMUX_PDUs_choice[] = { | |||
| 3144 | { 0, &hf_snmp_open , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OpenPDU }, | |||
| 3145 | { 1, &hf_snmp_close , BER_CLASS_APP1, 1, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ClosePDU }, | |||
| 3146 | { 2, &hf_snmp_registerRequest, BER_CLASS_APP1, 2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RReqPDU }, | |||
| 3147 | { 3, &hf_snmp_registerResponse, BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RegisterResponse }, | |||
| 3148 | { 4, &hf_snmp_commitOrRollback, BER_CLASS_APP1, 4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SOutPDU }, | |||
| 3149 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
| 3150 | }; | |||
| 3151 | ||||
| 3152 | static unsigned | |||
| 3153 | dissect_snmp_SMUX_PDUs(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), unsigned offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
| 3154 | ||||
| 3155 | snmp_conv_info_t *snmp_info = snmp_find_conversation_and_get_conv_data(actx->pinfo); | |||
| 3156 | ||||
| 3157 | actx->private_data = snmp_info; | |||
| 3158 | ||||
| 3159 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
| 3160 | SMUX_PDUs_choice, hf_index, ett_snmp_SMUX_PDUs, | |||
| 3161 | NULL((void*)0)); | |||
| 3162 | ||||
| 3163 | return offset; | |||
| 3164 | } | |||
| 3165 | ||||
| 3166 | /*--- PDUs ---*/ | |||
| 3167 | ||||
| 3168 | static int dissect_SMUX_PDUs_PDU(tvbuff_t *tvb _U___attribute__((unused)), packet_info *pinfo _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), void *data _U___attribute__((unused))) { | |||
| 3169 | unsigned offset = 0; | |||
| 3170 | asn1_ctx_t asn1_ctx; | |||
| 3171 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo); | |||
| 3172 | offset = dissect_snmp_SMUX_PDUs(false0, tvb, offset, &asn1_ctx, tree, hf_snmp_SMUX_PDUs_PDU); | |||
| 3173 | return offset; | |||
| 3174 | } | |||
| 3175 | ||||
| 3176 | ||||
| 3177 | static snmp_conv_info_t* | |||
| 3178 | snmp_find_conversation_and_get_conv_data(packet_info *pinfo) { | |||
| 3179 | ||||
| 3180 | conversation_t *conversation = NULL((void*)0); | |||
| 3181 | snmp_conv_info_t *snmp_info = NULL((void*)0); | |||
| 3182 | ||||
| 3183 | /* Get the conversation with the wildcarded port, if it exists | |||
| 3184 | * and is associated with SNMP, so that requests and responses | |||
| 3185 | * can be matched even if the response comes from a different, | |||
| 3186 | * ephemeral, source port, as originally done in OS/400. | |||
| 3187 | * On UDP, we do not automatically call conversation_set_port2() | |||
| 3188 | * and we do not want to do so. Possibly this should eventually | |||
| 3189 | * use find_conversation_full and separate the "SNMP conversation" | |||
| 3190 | * from "the transport layer conversation that carries SNMP." | |||
| 3191 | */ | |||
| 3192 | if (pinfo->destport == UDP_PORT_SNMP161) { | |||
| 3193 | conversation = find_conversation_strat(pinfo, conversation_pt_to_conversation_type(pinfo->ptype), NO_PORT_B0x00020000, 0); | |||
| 3194 | } else { | |||
| 3195 | conversation = find_conversation_strat(pinfo, conversation_pt_to_conversation_type(pinfo->ptype), NO_PORT_B0x00020000, 1); | |||
| 3196 | } | |||
| 3197 | if ( (conversation == NULL((void*)0)) || (conversation_get_dissector(conversation, pinfo->num)!=snmp_handle) ) { | |||
| 3198 | conversation = conversation_new_strat(pinfo, conversation_pt_to_conversation_type(pinfo->ptype), NO_PORT20x02); | |||
| 3199 | conversation_set_dissector(conversation, snmp_handle); | |||
| 3200 | ||||
| 3201 | conversation = conversation_new_strat(pinfo, CONVERSATION_SNMP, NO_PORT20x02); | |||
| 3202 | } | |||
| 3203 | ||||
| 3204 | snmp_info = (snmp_conv_info_t *)conversation_get_proto_data(conversation, proto_snmp); | |||
| 3205 | if (snmp_info == NULL((void*)0)) { | |||
| 3206 | snmp_info = wmem_new0(wmem_file_scope(), snmp_conv_info_t)((snmp_conv_info_t*)wmem_alloc0((wmem_file_scope()), sizeof(snmp_conv_info_t ))); | |||
| 3207 | snmp_info->request_response=wmem_map_new(wmem_file_scope(), g_int_hash, g_int_equal); | |||
| 3208 | ||||
| 3209 | conversation_add_proto_data(conversation, proto_snmp, snmp_info); | |||
| 3210 | } | |||
| 3211 | return snmp_info; | |||
| 3212 | } | |||
| 3213 | ||||
| 3214 | unsigned | |||
| 3215 | dissect_snmp_pdu(tvbuff_t *tvb, int offset, packet_info *pinfo, | |||
| 3216 | proto_tree *tree, int proto, int ett, bool_Bool is_tcp) | |||
| 3217 | { | |||
| 3218 | ||||
| 3219 | unsigned length_remaining; | |||
| 3220 | int8_t ber_class; | |||
| 3221 | bool_Bool pc, ind = 0; | |||
| 3222 | int32_t tag; | |||
| 3223 | uint32_t len; | |||
| 3224 | unsigned message_length; | |||
| 3225 | int start_offset = offset; | |||
| 3226 | uint32_t version = 0; | |||
| 3227 | tvbuff_t *next_tvb; | |||
| 3228 | ||||
| 3229 | proto_tree *snmp_tree = NULL((void*)0); | |||
| 3230 | proto_item *item = NULL((void*)0); | |||
| 3231 | ||||
| 3232 | snmp_conv_info_t *snmp_info = snmp_find_conversation_and_get_conv_data(pinfo); | |||
| 3233 | ||||
| 3234 | asn1_ctx_t asn1_ctx; | |||
| 3235 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo); | |||
| 3236 | ||||
| 3237 | asn1_ctx.private_data = snmp_info; | |||
| 3238 | ||||
| 3239 | usm_p.msg_tvb = tvb; | |||
| 3240 | usm_p.start_offset = tvb_offset_from_real_beginning(tvb); | |||
| 3241 | usm_p.engine_tvb = NULL((void*)0); | |||
| 3242 | usm_p.user_tvb = NULL((void*)0); | |||
| 3243 | usm_p.auth_item = NULL((void*)0); | |||
| 3244 | usm_p.auth_tvb = NULL((void*)0); | |||
| 3245 | usm_p.auth_offset = 0; | |||
| 3246 | usm_p.priv_tvb = NULL((void*)0); | |||
| 3247 | usm_p.user_assoc = NULL((void*)0); | |||
| 3248 | usm_p.authenticated = false0; | |||
| 3249 | usm_p.encrypted = false0; | |||
| 3250 | usm_p.boots = 0; | |||
| 3251 | usm_p.snmp_time = 0; | |||
| 3252 | usm_p.authOK = false0; | |||
| 3253 | ||||
| 3254 | /* | |||
| 3255 | * This will throw an exception if we don't have any data left. | |||
| 3256 | * That's what we want. (See "tcp_dissect_pdus()", which is | |||
| 3257 | * similar, but doesn't have to deal with ASN.1. | |||
| 3258 | * XXX - can we make "tcp_dissect_pdus()" provide enough | |||
| 3259 | * information to the "get_pdu_len" routine so that we could | |||
| 3260 | * have that routine deal with ASN.1, and just use | |||
| 3261 | * "tcp_dissect_pdus()"?) | |||
| 3262 | */ | |||
| 3263 | length_remaining = tvb_ensure_captured_length_remaining(tvb, offset); | |||
| 3264 | ||||
| 3265 | /* NOTE: we have to parse the message piece by piece, since the | |||
| 3266 | * capture length may be less than the message length: a 'global' | |||
| 3267 | * parsing is likely to fail. | |||
| 3268 | */ | |||
| 3269 | ||||
| 3270 | /* | |||
| 3271 | * If this is SNMP-over-TCP, we might have to do reassembly | |||
| 3272 | * in order to read the "Sequence Of" header. | |||
| 3273 | */ | |||
| 3274 | if (is_tcp && snmp_desegment && pinfo->can_desegment) { | |||
| 3275 | /* | |||
| 3276 | * This is TCP, and we should, and can, do reassembly. | |||
| 3277 | * | |||
| 3278 | * Is the "Sequence Of" header split across segment | |||
| 3279 | * boundaries? We require at least 6 bytes for the | |||
| 3280 | * header, which allows for a 4-byte length (ASN.1 | |||
| 3281 | * BER). | |||
| 3282 | */ | |||
| 3283 | if (length_remaining < 6) { | |||
| 3284 | /* | |||
| 3285 | * Yes. Tell the TCP dissector where the data | |||
| 3286 | * for this message starts in the data it handed | |||
| 3287 | * us and that we need "some more data." Don't tell | |||
| 3288 | * it exactly how many bytes we need because if/when | |||
| 3289 | * we ask for even more (after the header) that will | |||
| 3290 | * break reassembly. | |||
| 3291 | */ | |||
| 3292 | pinfo->desegment_offset = offset; | |||
| 3293 | pinfo->desegment_len = DESEGMENT_ONE_MORE_SEGMENT0x0fffffff; | |||
| 3294 | return 0; | |||
| 3295 | } | |||
| 3296 | } | |||
| 3297 | ||||
| 3298 | /* | |||
| 3299 | * OK, try to read the "Sequence Of" header; this gets the total | |||
| 3300 | * length of the SNMP message. | |||
| 3301 | */ | |||
| 3302 | offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag); | |||
| 3303 | /*Get the total octet length of the SNMP data*/ | |||
| 3304 | offset = get_ber_length(tvb, offset, &len, &ind); | |||
| 3305 | message_length = len + offset; | |||
| 3306 | ||||
| 3307 | /*Get the SNMP version data*/ | |||
| 3308 | /*offset =*/ dissect_ber_integer(false0, &asn1_ctx, 0, tvb, offset, -1, &version); | |||
| 3309 | ||||
| 3310 | ||||
| 3311 | /* | |||
| 3312 | * If this is SNMP-over-TCP, we might have to do reassembly | |||
| 3313 | * to get all of this message. | |||
| 3314 | */ | |||
| 3315 | if (is_tcp && snmp_desegment && pinfo->can_desegment) { | |||
| 3316 | /* | |||
| 3317 | * Yes - is the message split across segment boundaries? | |||
| 3318 | */ | |||
| 3319 | if (length_remaining < message_length) { | |||
| 3320 | /* | |||
| 3321 | * Yes. Tell the TCP dissector where the data | |||
| 3322 | * for this message starts in the data it handed | |||
| 3323 | * us, and how many more bytes we need, and | |||
| 3324 | * return. | |||
| 3325 | */ | |||
| 3326 | pinfo->desegment_offset = start_offset; | |||
| 3327 | pinfo->desegment_len = | |||
| 3328 | message_length - length_remaining; | |||
| 3329 | ||||
| 3330 | /* | |||
| 3331 | * Return 0, which means "I didn't dissect anything | |||
| 3332 | * because I don't have enough data - we need | |||
| 3333 | * to desegment". | |||
| 3334 | */ | |||
| 3335 | return 0; | |||
| 3336 | } | |||
| 3337 | } | |||
| 3338 | ||||
| 3339 | var_list = next_tvb_list_new(pinfo->pool); | |||
| 3340 | ||||
| 3341 | col_set_str(pinfo->cinfo, COL_PROTOCOL, proto_get_protocol_short_name(find_protocol_by_id(proto))); | |||
| 3342 | ||||
| 3343 | item = proto_tree_add_item(tree, proto, tvb, start_offset, message_length, ENC_BIG_ENDIAN0x00000000); | |||
| 3344 | snmp_tree = proto_item_add_subtree(item, ett); | |||
| 3345 | ||||
| 3346 | switch (version) { | |||
| 3347 | case 0: /* v1 */ | |||
| 3348 | case 1: /* v2c */ | |||
| 3349 | offset = dissect_snmp_Message(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
| 3350 | break; | |||
| 3351 | case 2: /* v2u */ | |||
| 3352 | offset = dissect_snmp_Messagev2u(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
| 3353 | break; | |||
| 3354 | /* v3 */ | |||
| 3355 | case 3: | |||
| 3356 | offset = dissect_snmp_SNMPv3Message(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
| 3357 | break; | |||
| 3358 | default: | |||
| 3359 | /* | |||
| 3360 | * Return the length remaining in the tvbuff, so | |||
| 3361 | * if this is SNMP-over-TCP, our caller thinks there's | |||
| 3362 | * nothing left to dissect. | |||
| 3363 | */ | |||
| 3364 | expert_add_info(pinfo, item, &ei_snmp_version_unknown); | |||
| 3365 | return length_remaining; | |||
| 3366 | } | |||
| 3367 | ||||
| 3368 | /* There may be appended data after the SNMP data, so treat as raw | |||
| 3369 | * data which needs to be dissected in case of UDP as UDP is PDU oriented. | |||
| 3370 | */ | |||
| 3371 | if((!is_tcp) && (length_remaining > (unsigned)offset)) { | |||
| 3372 | next_tvb = tvb_new_subset_remaining(tvb, offset); | |||
| 3373 | call_dissector(data_handle, next_tvb, pinfo, tree); | |||
| 3374 | } else { | |||
| 3375 | next_tvb_call(var_list, pinfo, tree, NULL((void*)0), data_handle); | |||
| 3376 | } | |||
| 3377 | ||||
| 3378 | return offset; | |||
| 3379 | } | |||
| 3380 | ||||
| 3381 | static int | |||
| 3382 | dissect_snmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U___attribute__((unused))) | |||
| 3383 | { | |||
| 3384 | int offset; | |||
| 3385 | int8_t tmp_class; | |||
| 3386 | bool_Bool tmp_pc; | |||
| 3387 | int32_t tmp_tag; | |||
| 3388 | uint32_t tmp_length; | |||
| 3389 | bool_Bool tmp_ind; | |||
| 3390 | ||||
| 3391 | /* | |||
| 3392 | * See if this looks like SNMP or not. if not, return 0 so | |||
| 3393 | * wireshark can try some other dissector instead. | |||
| 3394 | */ | |||
| 3395 | /* All SNMP packets are BER encoded and consist of a SEQUENCE | |||
| 3396 | * that spans the entire PDU. The first item is an INTEGER that | |||
| 3397 | * has the values 0-2 (version 1-3). | |||
| 3398 | * if not it is not snmp. | |||
| 3399 | */ | |||
| 3400 | /* SNMP starts with a SEQUENCE */ | |||
| 3401 | offset = get_ber_identifier(tvb, 0, &tmp_class, &tmp_pc, &tmp_tag); | |||
| 3402 | if((tmp_class!=BER_CLASS_UNI0)||(tmp_tag!=BER_UNI_TAG_SEQUENCE16)) { | |||
| 3403 | return 0; | |||
| 3404 | } | |||
| 3405 | /* then comes a length which spans the rest of the tvb */ | |||
| 3406 | offset = get_ber_length(tvb, offset, &tmp_length, &tmp_ind); | |||
| 3407 | /* Loosen the heuristic a bit to handle the case where data has intentionally | |||
| 3408 | * been added after the snmp PDU ( UDP case) (#3684) | |||
| 3409 | * If this is fragmented or carried in ICMP, we don't expect the tvb to | |||
| 3410 | * have the full length, so don't check. | |||
| 3411 | */ | |||
| 3412 | if (!pinfo->fragmented && !pinfo->flags.in_error_pkt) { | |||
| 3413 | if ( pinfo->ptype == PT_UDP ) { | |||
| 3414 | if(tmp_length>(uint32_t)tvb_reported_length_remaining(tvb, offset)) { | |||
| 3415 | return 0; | |||
| 3416 | } | |||
| 3417 | }else{ | |||
| 3418 | if(tmp_length!=(uint32_t)tvb_reported_length_remaining(tvb, offset)) { | |||
| 3419 | return 0; | |||
| 3420 | } | |||
| 3421 | } | |||
| 3422 | } | |||
| 3423 | /* then comes an INTEGER (version)*/ | |||
| 3424 | get_ber_identifier(tvb, offset, &tmp_class, &tmp_pc, &tmp_tag); | |||
| 3425 | if((tmp_class!=BER_CLASS_UNI0)||(tmp_tag!=BER_UNI_TAG_INTEGER2)) { | |||
| 3426 | return 0; | |||
| 3427 | } | |||
| 3428 | /* do we need to test that version is 0 - 2 (version1-3) ? */ | |||
| 3429 | ||||
| 3430 | ||||
| 3431 | /* | |||
| 3432 | * The IBM i (OS/400) SNMP agent, at least originally, would | |||
| 3433 | * send responses back from some *other* UDP port, an ephemeral | |||
| 3434 | * port above 5000, going back to the same IP address and port | |||
| 3435 | * from which the request came, similar to TFTP. This only happens | |||
| 3436 | * with the agent port, 161, not with the trap port, etc. As of | |||
| 3437 | * 2015 with the latest fixes applied, it no longer does this: | |||
| 3438 | * https://www.ibm.com/support/pages/ptf/SI55487 | |||
| 3439 | * https://www.ibm.com/support/pages/ptf/SI55537 | |||
| 3440 | * | |||
| 3441 | * The SNMP RFCs are silent on this (cf. L2TP RFC 2661, which | |||
| 3442 | * supports using either the well-known port or an ephemeral | |||
| 3443 | * port as the source port for responses, while noting that | |||
| 3444 | * the latter can cause issues with firewalls and NATs.) so | |||
| 3445 | * possibly some other implementations could do this. | |||
| 3446 | * | |||
| 3447 | * If this packet went to the SNMP port, we check to see if | |||
| 3448 | * there's already a conversation with one address/port pair | |||
| 3449 | * matching the source IP address and port of this packet, | |||
| 3450 | * the other address matching the destination IP address of this | |||
| 3451 | * packet, and any destination port. | |||
| 3452 | * | |||
| 3453 | * If not, we create one, with its address 1/port 1 pair being | |||
| 3454 | * the source address/port of this packet, its address 2 being | |||
| 3455 | * the destination address of this packet, and its port 2 being | |||
| 3456 | * wildcarded, and give it the SNMP dissector as a dissector. | |||
| 3457 | */ | |||
| 3458 | ||||
| 3459 | if (pinfo->destport == UDP_PORT_SNMP161) { | |||
| 3460 | conversation_t *conversation = find_conversation_strat(pinfo, conversation_pt_to_conversation_type(pinfo->ptype), NO_PORT_B0x00020000|NO_GREEDY0x00100000, 0); | |||
| 3461 | ||||
| 3462 | if (conversation == NULL((void*)0)) { | |||
| 3463 | conversation = conversation_new_strat(pinfo, conversation_pt_to_conversation_type(pinfo->ptype), NO_PORT20x02); | |||
| 3464 | ||||
| 3465 | conversation_set_dissector(conversation, snmp_handle); | |||
| 3466 | } | |||
| 3467 | else if (conversation_get_dissector(conversation,pinfo->num)!=snmp_handle) { | |||
| 3468 | conversation_set_dissector(conversation, snmp_handle); | |||
| 3469 | } | |||
| 3470 | } | |||
| 3471 | ||||
| 3472 | return dissect_snmp_pdu(tvb, 0, pinfo, tree, proto_snmp, ett_snmp, false0); | |||
| 3473 | } | |||
| 3474 | ||||
| 3475 | static int | |||
| 3476 | dissect_snmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U___attribute__((unused))) | |||
| 3477 | { | |||
| 3478 | int offset = 0; | |||
| 3479 | unsigned message_len; | |||
| 3480 | ||||
| 3481 | while (tvb_reported_length_remaining(tvb, offset) > 0) { | |||
| 3482 | message_len = dissect_snmp_pdu(tvb, offset, pinfo, tree, proto_snmp, ett_snmp, true1); | |||
| 3483 | if (message_len == 0) { | |||
| 3484 | /* | |||
| 3485 | * We don't have all the data for that message, | |||
| 3486 | * so we need to do desegmentation; | |||
| 3487 | * "dissect_snmp_pdu()" has set that up. | |||
| 3488 | */ | |||
| 3489 | break; | |||
| 3490 | } | |||
| 3491 | offset += message_len; | |||
| 3492 | } | |||
| 3493 | return tvb_captured_length(tvb); | |||
| 3494 | } | |||
| 3495 | ||||
| 3496 | static int | |||
| 3497 | dissect_smux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) | |||
| 3498 | { | |||
| 3499 | proto_tree *smux_tree = NULL((void*)0); | |||
| 3500 | proto_item *item = NULL((void*)0); | |||
| 3501 | ||||
| 3502 | var_list = next_tvb_list_new(pinfo->pool); | |||
| 3503 | ||||
| 3504 | col_set_str(pinfo->cinfo, COL_PROTOCOL, "SMUX"); | |||
| 3505 | ||||
| 3506 | item = proto_tree_add_item(tree, proto_smux, tvb, 0, -1, ENC_NA0x00000000); | |||
| 3507 | smux_tree = proto_item_add_subtree(item, ett_smux); | |||
| 3508 | ||||
| 3509 | return dissect_SMUX_PDUs_PDU(tvb, pinfo, smux_tree, data); | |||
| 3510 | } | |||
| 3511 | ||||
| 3512 | /* | |||
| 3513 | MD5 Password to Key Algorithm from RFC 3414 A.2.1 | |||
| 3514 | SHA1 Password to Key Algorithm from RFC 3414 A.2.2 | |||
| 3515 | SHA2 Password to Key Algorithm from RFC 7860 9.3 | |||
| 3516 | */ | |||
| 3517 | static void | |||
| 3518 | snmp_usm_password_to_key(const snmp_usm_auth_model_t model, const uint8_t *password, | |||
| 3519 | unsigned passwordlen, const uint8_t *engineID, unsigned engineLength, uint8_t *key) | |||
| 3520 | { | |||
| 3521 | gcry_md_hd_t hash_handle; | |||
| 3522 | uint8_t *cp, password_buf[64]; | |||
| 3523 | uint32_t password_index = 0; | |||
| 3524 | uint32_t count = 0, i; | |||
| 3525 | unsigned hash_len; | |||
| 3526 | ||||
| 3527 | if (gcry_md_open(&hash_handle, auth_hash_algo[model], 0)) { | |||
| 3528 | return; | |||
| 3529 | } | |||
| 3530 | ||||
| 3531 | hash_len = auth_hash_len[model]; | |||
| 3532 | ||||
| 3533 | /**********************************************/ | |||
| 3534 | /* Use while loop until we've done 1 Megabyte */ | |||
| 3535 | /**********************************************/ | |||
| 3536 | while (count < 1048576) { | |||
| 3537 | cp = password_buf; | |||
| 3538 | if (passwordlen
| |||
| 3539 | for (i = 0; i < 64; i++) { | |||
| 3540 | /*************************************************/ | |||
| 3541 | /* Take the next octet of the password, wrapping */ | |||
| 3542 | /* to the beginning of the password as necessary.*/ | |||
| 3543 | /*************************************************/ | |||
| 3544 | *cp++ = password[password_index++ % passwordlen]; | |||
| ||||
| 3545 | } | |||
| 3546 | } else { | |||
| 3547 | *cp = 0; | |||
| 3548 | } | |||
| 3549 | gcry_md_write(hash_handle, password_buf, 64); | |||
| 3550 | count += 64; | |||
| 3551 | } | |||
| 3552 | memcpy(key, gcry_md_read(hash_handle, 0), hash_len); | |||
| 3553 | gcry_md_close(hash_handle); | |||
| 3554 | ||||
| 3555 | /*****************************************************/ | |||
| 3556 | /* Now localise the key with the engineID and pass */ | |||
| 3557 | /* through hash function to produce final key */ | |||
| 3558 | /* We ignore invalid engineLengths here. More strict */ | |||
| 3559 | /* checking is done in snmp_users_update_cb. */ | |||
| 3560 | /*****************************************************/ | |||
| 3561 | if (gcry_md_open(&hash_handle, auth_hash_algo[model], 0)) { | |||
| 3562 | return; | |||
| 3563 | } | |||
| 3564 | gcry_md_write(hash_handle, key, hash_len); | |||
| 3565 | gcry_md_write(hash_handle, engineID, engineLength); | |||
| 3566 | gcry_md_write(hash_handle, key, hash_len); | |||
| 3567 | memcpy(key, gcry_md_read(hash_handle, 0), hash_len); | |||
| 3568 | gcry_md_close(hash_handle); | |||
| 3569 | return; | |||
| 3570 | } | |||
| 3571 | ||||
| 3572 | static void | |||
| 3573 | process_prefs(void) | |||
| 3574 | { | |||
| 3575 | } | |||
| 3576 | ||||
| 3577 | UAT_LSTRING_CB_DEF(snmp_users,userName,snmp_ue_assoc_t,user.userName.data,user.userName.len)static void snmp_users_userName_set_cb(void* rec, const char* buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { uint8_t* new_val = uat_unesc (buf,len,&(((snmp_ue_assoc_t*)rec)->user.userName.len) ); g_free((((snmp_ue_assoc_t*)rec)->user.userName.data)); ( ((snmp_ue_assoc_t*)rec)->user.userName.data) = new_val; } static void snmp_users_userName_tostr_cb(void* rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { if (((snmp_ue_assoc_t*)rec )->user.userName.data ) { *out_ptr = uat_esc(((snmp_ue_assoc_t *)rec)->user.userName.data, (((snmp_ue_assoc_t*)rec)->user .userName.len)); *out_len = (unsigned)strlen(*out_ptr); } else { *out_ptr = g_strdup_inline (""); *out_len = 0; } } | |||
| 3578 | UAT_LSTRING_CB_DEF(snmp_users,authPassword,snmp_ue_assoc_t,user.authPassword.data,user.authPassword.len)static void snmp_users_authPassword_set_cb(void* rec, const char * buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { uint8_t* new_val = uat_unesc (buf,len,&(((snmp_ue_assoc_t*)rec)->user.authPassword. len)); g_free((((snmp_ue_assoc_t*)rec)->user.authPassword. data)); (((snmp_ue_assoc_t*)rec)->user.authPassword.data) = new_val; } static void snmp_users_authPassword_tostr_cb(void * rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__ ((unused)), const void* u2 __attribute__((unused))) { if (((snmp_ue_assoc_t *)rec)->user.authPassword.data ) { *out_ptr = uat_esc(((snmp_ue_assoc_t *)rec)->user.authPassword.data, (((snmp_ue_assoc_t*)rec)-> user.authPassword.len)); *out_len = (unsigned)strlen(*out_ptr ); } else { *out_ptr = g_strdup_inline (""); *out_len = 0; } } | |||
| 3579 | UAT_LSTRING_CB_DEF(snmp_users,privPassword,snmp_ue_assoc_t,user.privPassword.data,user.privPassword.len)static void snmp_users_privPassword_set_cb(void* rec, const char * buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { uint8_t* new_val = uat_unesc (buf,len,&(((snmp_ue_assoc_t*)rec)->user.privPassword. len)); g_free((((snmp_ue_assoc_t*)rec)->user.privPassword. data)); (((snmp_ue_assoc_t*)rec)->user.privPassword.data) = new_val; } static void snmp_users_privPassword_tostr_cb(void * rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__ ((unused)), const void* u2 __attribute__((unused))) { if (((snmp_ue_assoc_t *)rec)->user.privPassword.data ) { *out_ptr = uat_esc(((snmp_ue_assoc_t *)rec)->user.privPassword.data, (((snmp_ue_assoc_t*)rec)-> user.privPassword.len)); *out_len = (unsigned)strlen(*out_ptr ); } else { *out_ptr = g_strdup_inline (""); *out_len = 0; } } | |||
| 3580 | UAT_BUFFER_CB_DEF(snmp_users,engine_id,snmp_ue_assoc_t,engine.data,engine.len)static void snmp_users_engine_id_set_cb(void* rec, const char * buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { unsigned char* new_buf = len ? (unsigned char *)g_memdup2(buf,len) : ((void*)0); g_free ((((snmp_ue_assoc_t*)rec)->engine.data)); (((snmp_ue_assoc_t *)rec)->engine.data) = new_buf; (((snmp_ue_assoc_t*)rec)-> engine.len) = len; } static void snmp_users_engine_id_tostr_cb (void* rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused ))) { *out_ptr = ((snmp_ue_assoc_t*)rec)->engine.data ? (char *)g_memdup2(((snmp_ue_assoc_t*)rec)->engine.data,((snmp_ue_assoc_t *)rec)->engine.len) : g_strdup_inline (""); *out_len = ((snmp_ue_assoc_t *)rec)->engine.len; } | |||
| 3581 | UAT_VS_DEF(snmp_users,auth_model,snmp_ue_assoc_t,unsigned,0,"MD5")static void snmp_users_auth_model_set_cb(void* rec, const char * buf, unsigned len, const void* vs, const void* u2 __attribute__ ((unused))) { unsigned i; char* str = g_strndup(buf,len); const char* cstr; ((snmp_ue_assoc_t*)rec)->auth_model = 0; for( i=0; ( cstr = ((const value_string*)vs)[i].strptr ) ;i++) { if ((strcmp ((const char *) (cstr), (const char *) (str)) == 0) ) { ((snmp_ue_assoc_t*)rec)->auth_model = (unsigned)((const value_string*)vs)[i].value; g_free(str); return; } } g_free( str); } static void snmp_users_auth_model_tostr_cb(void* rec, char** out_ptr, unsigned* out_len, const void* vs, const void * u2 __attribute__((unused))) { unsigned i; for(i=0;((const value_string *)vs)[i].strptr;i++) { if ( ((const value_string*)vs)[i].value == ((snmp_ue_assoc_t*)rec)->auth_model ) { *out_ptr = g_strdup_inline (((const value_string*)vs)[i].strptr); *out_len = (unsigned) strlen(*out_ptr); return; } } *out_ptr = g_strdup_inline ("MD5" ); *out_len = (unsigned)strlen("MD5"); } | |||
| 3582 | UAT_VS_DEF(snmp_users,priv_proto,snmp_ue_assoc_t,unsigned,0,"DES")static void snmp_users_priv_proto_set_cb(void* rec, const char * buf, unsigned len, const void* vs, const void* u2 __attribute__ ((unused))) { unsigned i; char* str = g_strndup(buf,len); const char* cstr; ((snmp_ue_assoc_t*)rec)->priv_proto = 0; for( i=0; ( cstr = ((const value_string*)vs)[i].strptr ) ;i++) { if ((strcmp ((const char *) (cstr), (const char *) (str)) == 0) ) { ((snmp_ue_assoc_t*)rec)->priv_proto = (unsigned)((const value_string*)vs)[i].value; g_free(str); return; } } g_free( str); } static void snmp_users_priv_proto_tostr_cb(void* rec, char** out_ptr, unsigned* out_len, const void* vs, const void * u2 __attribute__((unused))) { unsigned i; for(i=0;((const value_string *)vs)[i].strptr;i++) { if ( ((const value_string*)vs)[i].value == ((snmp_ue_assoc_t*)rec)->priv_proto ) { *out_ptr = g_strdup_inline (((const value_string*)vs)[i].strptr); *out_len = (unsigned) strlen(*out_ptr); return; } } *out_ptr = g_strdup_inline ("DES" ); *out_len = (unsigned)strlen("DES"); } | |||
| 3583 | UAT_VS_DEF(snmp_users,priv_key_exp,snmp_ue_assoc_t,unsigned,0,"draft-reeder-snmpv3-usm-3desede-00")static void snmp_users_priv_key_exp_set_cb(void* rec, const char * buf, unsigned len, const void* vs, const void* u2 __attribute__ ((unused))) { unsigned i; char* str = g_strndup(buf,len); const char* cstr; ((snmp_ue_assoc_t*)rec)->priv_key_exp = 0; for (i=0; ( cstr = ((const value_string*)vs)[i].strptr ) ;i++) { if ((strcmp ((const char *) (cstr), (const char *) (str)) == 0) ) { ((snmp_ue_assoc_t*)rec)->priv_key_exp = (unsigned)((const value_string*)vs)[i].value; g_free(str); return; } } g_free( str); } static void snmp_users_priv_key_exp_tostr_cb(void* rec , char** out_ptr, unsigned* out_len, const void* vs, const void * u2 __attribute__((unused))) { unsigned i; for(i=0;((const value_string *)vs)[i].strptr;i++) { if ( ((const value_string*)vs)[i].value == ((snmp_ue_assoc_t*)rec)->priv_key_exp ) { *out_ptr = g_strdup_inline (((const value_string*)vs)[i].strptr); *out_len = (unsigned) strlen(*out_ptr); return; } } *out_ptr = g_strdup_inline ("draft-reeder-snmpv3-usm-3desede-00" ); *out_len = (unsigned)strlen("draft-reeder-snmpv3-usm-3desede-00" ); } | |||
| 3584 | ||||
| 3585 | static void * | |||
| 3586 | snmp_specific_trap_copy_cb(void *dest, const void *orig, size_t len _U___attribute__((unused))) | |||
| 3587 | { | |||
| 3588 | snmp_st_assoc_t *u = (snmp_st_assoc_t *)dest; | |||
| 3589 | const snmp_st_assoc_t *o = (const snmp_st_assoc_t *)orig; | |||
| 3590 | ||||
| 3591 | u->enterprise = g_strdup(o->enterprise)g_strdup_inline (o->enterprise); | |||
| 3592 | u->trap = o->trap; | |||
| 3593 | u->desc = g_strdup(o->desc)g_strdup_inline (o->desc); | |||
| 3594 | ||||
| 3595 | return dest; | |||
| 3596 | } | |||
| 3597 | ||||
| 3598 | static void | |||
| 3599 | snmp_specific_trap_free_cb(void *r) | |||
| 3600 | { | |||
| 3601 | snmp_st_assoc_t *u = (snmp_st_assoc_t *)r; | |||
| 3602 | ||||
| 3603 | g_free(u->enterprise); | |||
| 3604 | g_free(u->desc); | |||
| 3605 | } | |||
| 3606 | ||||
| 3607 | UAT_CSTRING_CB_DEF(specific_traps, enterprise, snmp_st_assoc_t)static void specific_traps_enterprise_set_cb(void* rec, const char* buf, unsigned len, const void* u1 __attribute__((unused )), const void* u2 __attribute__((unused))) { char* new_buf = g_strndup(buf,len); g_free((((snmp_st_assoc_t*)rec)->enterprise )); (((snmp_st_assoc_t*)rec)->enterprise) = new_buf; } static void specific_traps_enterprise_tostr_cb(void* rec, char** out_ptr , unsigned* out_len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { if (((snmp_st_assoc_t*)rec )->enterprise ) { *out_ptr = g_strdup_inline ((((snmp_st_assoc_t *)rec)->enterprise)); *out_len = (unsigned)strlen((((snmp_st_assoc_t *)rec)->enterprise)); } else { *out_ptr = g_strdup_inline ( ""); *out_len = 0; } } | |||
| 3608 | UAT_DEC_CB_DEF(specific_traps, trap, snmp_st_assoc_t)static void specific_traps_trap_set_cb(void* rec, const char* buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { char* tmp_str = g_strndup (buf,len); ws_strtou32(tmp_str, ((void*)0), &((snmp_st_assoc_t *)rec)->trap); g_free(tmp_str); } static void specific_traps_trap_tostr_cb (void* rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused ))) { *out_ptr = wmem_strdup_printf(((void*)0), "%u",((snmp_st_assoc_t *)rec)->trap); *out_len = (unsigned)strlen(*out_ptr); } | |||
| 3609 | UAT_CSTRING_CB_DEF(specific_traps, desc, snmp_st_assoc_t)static void specific_traps_desc_set_cb(void* rec, const char* buf, unsigned len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused))) { char* new_buf = g_strndup (buf,len); g_free((((snmp_st_assoc_t*)rec)->desc)); (((snmp_st_assoc_t *)rec)->desc) = new_buf; } static void specific_traps_desc_tostr_cb (void* rec, char** out_ptr, unsigned* out_len, const void* u1 __attribute__((unused)), const void* u2 __attribute__((unused ))) { if (((snmp_st_assoc_t*)rec)->desc ) { *out_ptr = g_strdup_inline ((((snmp_st_assoc_t*)rec)->desc)); *out_len = (unsigned)strlen ((((snmp_st_assoc_t*)rec)->desc)); } else { *out_ptr = g_strdup_inline (""); *out_len = 0; } } | |||
| 3610 | ||||
| 3611 | /*--- proto_register_snmp -------------------------------------------*/ | |||
| 3612 | void proto_register_snmp(void) { | |||
| 3613 | /* List of fields */ | |||
| 3614 | static hf_register_info hf[] = { | |||
| 3615 | { &hf_snmp_response_in, | |||
| 3616 | { "Response In", "snmp.response_in", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_RESPONSE)((gpointer) (glong) (FT_FRAMENUM_RESPONSE)), 0x0, | |||
| 3617 | "The response to this SNMP request is in this frame", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3618 | { &hf_snmp_response_to, | |||
| 3619 | { "Response To", "snmp.response_to", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_REQUEST)((gpointer) (glong) (FT_FRAMENUM_REQUEST)), 0x0, | |||
| 3620 | "This is a response to the SNMP request in this frame", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3621 | { &hf_snmp_time, | |||
| 3622 | { "Time", "snmp.time", FT_RELATIVE_TIME, BASE_NONE, NULL((void*)0), 0x0, | |||
| 3623 | "The time between the Request and the Response", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3624 | { &hf_snmp_v3_flags_auth, | |||
| 3625 | { "Authenticated", "snmp.v3.flags.auth", FT_BOOLEAN, 8, | |||
| 3626 | TFS(&tfs_set_notset)((0 ? (const struct true_false_string*)0 : ((&tfs_set_notset )))), TH_AUTH0x01, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3627 | { &hf_snmp_v3_flags_crypt, | |||
| 3628 | { "Encrypted", "snmp.v3.flags.crypt", FT_BOOLEAN, 8, | |||
| 3629 | TFS(&tfs_set_notset)((0 ? (const struct true_false_string*)0 : ((&tfs_set_notset )))), TH_CRYPT0x02, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3630 | { &hf_snmp_v3_flags_report, | |||
| 3631 | { "Reportable", "snmp.v3.flags.report", FT_BOOLEAN, 8, | |||
| 3632 | TFS(&tfs_set_notset)((0 ? (const struct true_false_string*)0 : ((&tfs_set_notset )))), TH_REPORT0x04, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3633 | { &hf_snmp_engineid_conform, { | |||
| 3634 | "Engine ID Conformance", "snmp.engineid.conform", FT_BOOLEAN, 8, | |||
| 3635 | TFS(&tfs_snmp_engineid_conform)((0 ? (const struct true_false_string*)0 : ((&tfs_snmp_engineid_conform )))), F_SNMP_ENGINEID_CONFORM0x80, "Engine ID RFC3411 Conformance", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3636 | { &hf_snmp_engineid_enterprise, { | |||
| 3637 | "Engine Enterprise ID", "snmp.engineid.enterprise", FT_UINT32, BASE_ENTERPRISESBASE_CUSTOM, | |||
| 3638 | STRINGS_ENTERPRISES((const void *) (size_t) (enterprises_base_custom)), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3639 | { &hf_snmp_engineid_format, { | |||
| 3640 | "Engine ID Format", "snmp.engineid.format", FT_UINT8, BASE_DEC, | |||
| 3641 | VALS(snmp_engineid_format_vals)((0 ? (const struct _value_string*)0 : ((snmp_engineid_format_vals )))), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3642 | { &hf_snmp_engineid_ipv4, { | |||
| 3643 | "Engine ID Data: IPv4 address", "snmp.engineid.ipv4", FT_IPv4, BASE_NONE, | |||
| 3644 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3645 | { &hf_snmp_engineid_ipv6, { | |||
| 3646 | "Engine ID Data: IPv6 address", "snmp.engineid.ipv6", FT_IPv6, BASE_NONE, | |||
| 3647 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3648 | { &hf_snmp_engineid_cisco_type, { | |||
| 3649 | "Engine ID Data: Cisco type", "snmp.engineid.cisco.type", FT_UINT8, BASE_HEX, | |||
| 3650 | VALS(snmp_engineid_cisco_type_vals)((0 ? (const struct _value_string*)0 : ((snmp_engineid_cisco_type_vals )))), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3651 | { &hf_snmp_engineid_mac, { | |||
| 3652 | "Engine ID Data: MAC address", "snmp.engineid.mac", FT_ETHER, BASE_NONE, | |||
| 3653 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3654 | { &hf_snmp_engineid_text, { | |||
| 3655 | "Engine ID Data: Text", "snmp.engineid.text", FT_STRING, BASE_NONE, | |||
| 3656 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3657 | { &hf_snmp_engineid_time, { | |||
| 3658 | "Engine ID Data: Creation Time", "snmp.engineid.time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, | |||
| 3659 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3660 | { &hf_snmp_engineid_data, { | |||
| 3661 | "Engine ID Data", "snmp.engineid.data", FT_BYTES, BASE_NONE, | |||
| 3662 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3663 | { &hf_snmp_msgAuthentication, { | |||
| 3664 | "Authentication", "snmp.v3.auth", FT_BOOLEAN, BASE_NONE, | |||
| 3665 | TFS(&auth_flags)((0 ? (const struct true_false_string*)0 : ((&auth_flags) ))), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3666 | { &hf_snmp_decryptedPDU, { | |||
| 3667 | "Decrypted ScopedPDU", "snmp.decrypted_pdu", FT_BYTES, BASE_NONE, | |||
| 3668 | NULL((void*)0), 0, "Decrypted PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3669 | { &hf_snmp_noSuchObject, { | |||
| 3670 | "noSuchObject", "snmp.noSuchObject", FT_NONE, BASE_NONE, | |||
| 3671 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3672 | { &hf_snmp_noSuchInstance, { | |||
| 3673 | "noSuchInstance", "snmp.noSuchInstance", FT_NONE, BASE_NONE, | |||
| 3674 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3675 | { &hf_snmp_endOfMibView, { | |||
| 3676 | "endOfMibView", "snmp.endOfMibView", FT_NONE, BASE_NONE, | |||
| 3677 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3678 | { &hf_snmp_unSpecified, { | |||
| 3679 | "unSpecified", "snmp.unSpecified", FT_NONE, BASE_NONE, | |||
| 3680 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3681 | ||||
| 3682 | { &hf_snmp_integer32_value, { | |||
| 3683 | "Value (Integer32)", "snmp.value.int", FT_INT64, BASE_DEC, | |||
| 3684 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3685 | { &hf_snmp_octetstring_value, { | |||
| 3686 | "Value (OctetString)", "snmp.value.octets", FT_BYTES, BASE_SHOW_ASCII_PRINTABLE0x00010000, | |||
| 3687 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3688 | { &hf_snmp_oid_value, { | |||
| 3689 | "Value (OID)", "snmp.value.oid", FT_OID, BASE_NONE, | |||
| 3690 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3691 | { &hf_snmp_null_value, { | |||
| 3692 | "Value (Null)", "snmp.value.null", FT_NONE, BASE_NONE, | |||
| 3693 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3694 | { &hf_snmp_ipv4_value, { | |||
| 3695 | "Value (IpAddress)", "snmp.value.ipv4", FT_IPv4, BASE_NONE, | |||
| 3696 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3697 | { &hf_snmp_ipv6_value, { | |||
| 3698 | "Value (IpAddress)", "snmp.value.ipv6", FT_IPv6, BASE_NONE, | |||
| 3699 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3700 | { &hf_snmp_anyaddress_value, { | |||
| 3701 | "Value (IpAddress)", "snmp.value.addr", FT_BYTES, BASE_NONE, | |||
| 3702 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3703 | { &hf_snmp_unsigned32_value, { | |||
| 3704 | "Value (Unsigned32)", "snmp.value.u32", FT_INT64, BASE_DEC, | |||
| 3705 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3706 | { &hf_snmp_gauge32_value, { | |||
| 3707 | "Value (Gauge32)", "snmp.value.g32", FT_INT64, BASE_DEC, | |||
| 3708 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3709 | { &hf_snmp_unknown_value, { | |||
| 3710 | "Value (Unknown)", "snmp.value.unk", FT_BYTES, BASE_NONE, | |||
| 3711 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3712 | { &hf_snmp_counter_value, { | |||
| 3713 | "Value (Counter32)", "snmp.value.counter", FT_UINT64, BASE_DEC, | |||
| 3714 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3715 | { &hf_snmp_big_counter_value, { | |||
| 3716 | "Value (Counter64)", "snmp.value.counter", FT_UINT64, BASE_DEC, | |||
| 3717 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3718 | { &hf_snmp_nsap_value, { | |||
| 3719 | "Value (NSAP)", "snmp.value.nsap", FT_UINT64, BASE_DEC, | |||
| 3720 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3721 | { &hf_snmp_timeticks_value, { | |||
| 3722 | "Value (Timeticks)", "snmp.value.timeticks", FT_UINT64, BASE_DEC, | |||
| 3723 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3724 | { &hf_snmp_opaque_value, { | |||
| 3725 | "Value (Opaque)", "snmp.value.opaque", FT_BYTES, BASE_NONE, | |||
| 3726 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3727 | { &hf_snmp_objectname, { | |||
| 3728 | "Object Name", "snmp.name", FT_OID, BASE_NONE, | |||
| 3729 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3730 | { &hf_snmp_scalar_instance_index, { | |||
| 3731 | "Scalar Instance Index", "snmp.name.index", FT_UINT64, BASE_DEC, | |||
| 3732 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3733 | { &hf_snmp_var_bind_str, { | |||
| 3734 | "Variable-binding-string", "snmp.var-bind_str", FT_STRING, BASE_NONE, | |||
| 3735 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3736 | { &hf_snmp_agentid_trailer, { | |||
| 3737 | "AgentID Trailer", "snmp.agentid_trailer", FT_BYTES, BASE_NONE, | |||
| 3738 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3739 | ||||
| 3740 | ||||
| 3741 | { &hf_snmp_SMUX_PDUs_PDU, | |||
| 3742 | { "SMUX-PDUs", "snmp.SMUX_PDUs", | |||
| 3743 | FT_UINT32, BASE_DEC, VALS(snmp_SMUX_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_SMUX_PDUs_vals) ))), 0, | |||
| 3744 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3745 | { &hf_snmp_version, | |||
| 3746 | { "version", "snmp.version", | |||
| 3747 | FT_INT32, BASE_DEC, VALS(snmp_Version_vals)((0 ? (const struct _value_string*)0 : ((snmp_Version_vals))) ), 0, | |||
| 3748 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3749 | { &hf_snmp_community, | |||
| 3750 | { "community", "snmp.community", | |||
| 3751 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
| 3752 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3753 | { &hf_snmp_data, | |||
| 3754 | { "data", "snmp.data", | |||
| 3755 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
| 3756 | "PDUs", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3757 | { &hf_snmp_parameters, | |||
| 3758 | { "parameters", "snmp.parameters", | |||
| 3759 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3760 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3761 | { &hf_snmp_datav2u, | |||
| 3762 | { "datav2u", "snmp.datav2u", | |||
| 3763 | FT_UINT32, BASE_DEC, VALS(snmp_T_datav2u_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_datav2u_vals) ))), 0, | |||
| 3764 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3765 | { &hf_snmp_v2u_plaintext, | |||
| 3766 | { "plaintext", "snmp.v2u_plaintext", | |||
| 3767 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
| 3768 | "PDUs", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3769 | { &hf_snmp_encrypted, | |||
| 3770 | { "encrypted", "snmp.encrypted", | |||
| 3771 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3772 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3773 | { &hf_snmp_msgAuthoritativeEngineID, | |||
| 3774 | { "msgAuthoritativeEngineID", "snmp.msgAuthoritativeEngineID", | |||
| 3775 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3776 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3777 | { &hf_snmp_msgAuthoritativeEngineBoots, | |||
| 3778 | { "msgAuthoritativeEngineBoots", "snmp.msgAuthoritativeEngineBoots", | |||
| 3779 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3780 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3781 | { &hf_snmp_msgAuthoritativeEngineTime, | |||
| 3782 | { "msgAuthoritativeEngineTime", "snmp.msgAuthoritativeEngineTime", | |||
| 3783 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3784 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3785 | { &hf_snmp_msgUserName, | |||
| 3786 | { "msgUserName", "snmp.msgUserName", | |||
| 3787 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
| 3788 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3789 | { &hf_snmp_msgAuthenticationParameters, | |||
| 3790 | { "msgAuthenticationParameters", "snmp.msgAuthenticationParameters", | |||
| 3791 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3792 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3793 | { &hf_snmp_msgPrivacyParameters, | |||
| 3794 | { "msgPrivacyParameters", "snmp.msgPrivacyParameters", | |||
| 3795 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3796 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3797 | { &hf_snmp_msgVersion, | |||
| 3798 | { "msgVersion", "snmp.msgVersion", | |||
| 3799 | FT_INT32, BASE_DEC, VALS(snmp_Version_vals)((0 ? (const struct _value_string*)0 : ((snmp_Version_vals))) ), 0, | |||
| 3800 | "Version", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3801 | { &hf_snmp_msgGlobalData, | |||
| 3802 | { "msgGlobalData", "snmp.msgGlobalData_element", | |||
| 3803 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3804 | "HeaderData", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3805 | { &hf_snmp_msgSecurityParameters, | |||
| 3806 | { "msgSecurityParameters", "snmp.msgSecurityParameters", | |||
| 3807 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3808 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3809 | { &hf_snmp_msgData, | |||
| 3810 | { "msgData", "snmp.msgData", | |||
| 3811 | FT_UINT32, BASE_DEC, VALS(snmp_ScopedPduData_vals)((0 ? (const struct _value_string*)0 : ((snmp_ScopedPduData_vals )))), 0, | |||
| 3812 | "ScopedPduData", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3813 | { &hf_snmp_msgID, | |||
| 3814 | { "msgID", "snmp.msgID", | |||
| 3815 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3816 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3817 | { &hf_snmp_msgMaxSize, | |||
| 3818 | { "msgMaxSize", "snmp.msgMaxSize", | |||
| 3819 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3820 | "INTEGER_484_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3821 | { &hf_snmp_msgFlags, | |||
| 3822 | { "msgFlags", "snmp.msgFlags", | |||
| 3823 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3824 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3825 | { &hf_snmp_msgSecurityModel, | |||
| 3826 | { "msgSecurityModel", "snmp.msgSecurityModel", | |||
| 3827 | FT_UINT32, BASE_DEC, VALS(sec_models)((0 ? (const struct _value_string*)0 : ((sec_models)))), 0, | |||
| 3828 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3829 | { &hf_snmp_plaintext, | |||
| 3830 | { "plaintext", "snmp.plaintext_element", | |||
| 3831 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3832 | "ScopedPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3833 | { &hf_snmp_encryptedPDU, | |||
| 3834 | { "encryptedPDU", "snmp.encryptedPDU", | |||
| 3835 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3836 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3837 | { &hf_snmp_contextEngineID, | |||
| 3838 | { "contextEngineID", "snmp.contextEngineID", | |||
| 3839 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3840 | "SnmpEngineID", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3841 | { &hf_snmp_contextName, | |||
| 3842 | { "contextName", "snmp.contextName", | |||
| 3843 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
| 3844 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3845 | { &hf_snmp_get_request, | |||
| 3846 | { "get-request", "snmp.get_request_element", | |||
| 3847 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3848 | "GetRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3849 | { &hf_snmp_get_next_request, | |||
| 3850 | { "get-next-request", "snmp.get_next_request_element", | |||
| 3851 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3852 | "GetNextRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3853 | { &hf_snmp_get_response, | |||
| 3854 | { "get-response", "snmp.get_response_element", | |||
| 3855 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3856 | "GetResponse_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3857 | { &hf_snmp_set_request, | |||
| 3858 | { "set-request", "snmp.set_request_element", | |||
| 3859 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3860 | "SetRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3861 | { &hf_snmp_trap, | |||
| 3862 | { "trap", "snmp.trap_element", | |||
| 3863 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3864 | "Trap_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3865 | { &hf_snmp_getBulkRequest, | |||
| 3866 | { "getBulkRequest", "snmp.getBulkRequest_element", | |||
| 3867 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3868 | "GetBulkRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3869 | { &hf_snmp_informRequest, | |||
| 3870 | { "informRequest", "snmp.informRequest_element", | |||
| 3871 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3872 | "InformRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3873 | { &hf_snmp_snmpV2_trap, | |||
| 3874 | { "snmpV2-trap", "snmp.snmpV2_trap_element", | |||
| 3875 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3876 | "SNMPv2_Trap_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3877 | { &hf_snmp_report, | |||
| 3878 | { "report", "snmp.report_element", | |||
| 3879 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3880 | "Report_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3881 | { &hf_snmp_request_id, | |||
| 3882 | { "request-id", "snmp.request_id", | |||
| 3883 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3884 | "T_request_id", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3885 | { &hf_snmp_error_status, | |||
| 3886 | { "error-status", "snmp.error_status", | |||
| 3887 | FT_INT32, BASE_DEC, VALS(snmp_T_error_status_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_error_status_vals )))), 0, | |||
| 3888 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3889 | { &hf_snmp_error_index, | |||
| 3890 | { "error-index", "snmp.error_index", | |||
| 3891 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3892 | "INTEGER", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3893 | { &hf_snmp_variable_bindings, | |||
| 3894 | { "variable-bindings", "snmp.variable_bindings", | |||
| 3895 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3896 | "VarBindList", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3897 | { &hf_snmp_request_id_01, | |||
| 3898 | { "request-id", "snmp.request_id", | |||
| 3899 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3900 | "Integer32", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3901 | { &hf_snmp_non_repeaters, | |||
| 3902 | { "non-repeaters", "snmp.non_repeaters", | |||
| 3903 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3904 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3905 | { &hf_snmp_max_repetitions, | |||
| 3906 | { "max-repetitions", "snmp.max_repetitions", | |||
| 3907 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3908 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3909 | { &hf_snmp_enterprise, | |||
| 3910 | { "enterprise", "snmp.enterprise", | |||
| 3911 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
| 3912 | "EnterpriseOID", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3913 | { &hf_snmp_agent_addr, | |||
| 3914 | { "agent-addr", "snmp.agent_addr", | |||
| 3915 | FT_IPv4, BASE_NONE, NULL((void*)0), 0, | |||
| 3916 | "NetworkAddress", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3917 | { &hf_snmp_generic_trap, | |||
| 3918 | { "generic-trap", "snmp.generic_trap", | |||
| 3919 | FT_INT32, BASE_DEC, VALS(snmp_GenericTrap_vals)((0 ? (const struct _value_string*)0 : ((snmp_GenericTrap_vals )))), 0, | |||
| 3920 | "GenericTrap", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3921 | { &hf_snmp_specific_trap, | |||
| 3922 | { "specific-trap", "snmp.specific_trap", | |||
| 3923 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3924 | "SpecificTrap", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3925 | { &hf_snmp_time_stamp, | |||
| 3926 | { "time-stamp", "snmp.time_stamp", | |||
| 3927 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3928 | "TimeTicks", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3929 | { &hf_snmp_name, | |||
| 3930 | { "name", "snmp.name", | |||
| 3931 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
| 3932 | "ObjectName", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3933 | { &hf_snmp_valueType, | |||
| 3934 | { "valueType", "snmp.valueType_element", | |||
| 3935 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3936 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3937 | { &hf_snmp_VarBindList_item, | |||
| 3938 | { "VarBind", "snmp.VarBind_element", | |||
| 3939 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3940 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3941 | { &hf_snmp_open, | |||
| 3942 | { "open", "snmp.open", | |||
| 3943 | FT_UINT32, BASE_DEC, VALS(snmp_OpenPDU_vals)((0 ? (const struct _value_string*)0 : ((snmp_OpenPDU_vals))) ), 0, | |||
| 3944 | "OpenPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3945 | { &hf_snmp_close, | |||
| 3946 | { "close", "snmp.close", | |||
| 3947 | FT_INT32, BASE_DEC, VALS(snmp_ClosePDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_ClosePDU_U_vals )))), 0, | |||
| 3948 | "ClosePDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3949 | { &hf_snmp_registerRequest, | |||
| 3950 | { "registerRequest", "snmp.registerRequest_element", | |||
| 3951 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3952 | "RReqPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3953 | { &hf_snmp_registerResponse, | |||
| 3954 | { "registerResponse", "snmp.registerResponse", | |||
| 3955 | FT_UINT32, BASE_DEC, VALS(snmp_RegisterResponse_vals)((0 ? (const struct _value_string*)0 : ((snmp_RegisterResponse_vals )))), 0, | |||
| 3956 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3957 | { &hf_snmp_commitOrRollback, | |||
| 3958 | { "commitOrRollback", "snmp.commitOrRollback", | |||
| 3959 | FT_INT32, BASE_DEC, VALS(snmp_SOutPDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_SOutPDU_U_vals) ))), 0, | |||
| 3960 | "SOutPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3961 | { &hf_snmp_rRspPDU, | |||
| 3962 | { "rRspPDU", "snmp.rRspPDU", | |||
| 3963 | FT_INT32, BASE_DEC, VALS(snmp_RRspPDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_RRspPDU_U_vals) ))), 0, | |||
| 3964 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3965 | { &hf_snmp_pDUs, | |||
| 3966 | { "pDUs", "snmp.pDUs", | |||
| 3967 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
| 3968 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3969 | { &hf_snmp_smux_simple, | |||
| 3970 | { "smux-simple", "snmp.smux_simple_element", | |||
| 3971 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
| 3972 | "SimpleOpen", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3973 | { &hf_snmp_smux_version, | |||
| 3974 | { "smux-version", "snmp.smux_version", | |||
| 3975 | FT_INT32, BASE_DEC, VALS(snmp_T_smux_version_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_smux_version_vals )))), 0, | |||
| 3976 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3977 | { &hf_snmp_identity, | |||
| 3978 | { "identity", "snmp.identity", | |||
| 3979 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
| 3980 | "OBJECT_IDENTIFIER", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3981 | { &hf_snmp_description, | |||
| 3982 | { "description", "snmp.description", | |||
| 3983 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3984 | "DisplayString", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3985 | { &hf_snmp_password, | |||
| 3986 | { "password", "snmp.password", | |||
| 3987 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
| 3988 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3989 | { &hf_snmp_subtree, | |||
| 3990 | { "subtree", "snmp.subtree", | |||
| 3991 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
| 3992 | "ObjectName", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3993 | { &hf_snmp_priority, | |||
| 3994 | { "priority", "snmp.priority", | |||
| 3995 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
| 3996 | "INTEGER_M1_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 3997 | { &hf_snmp_operation, | |||
| 3998 | { "operation", "snmp.operation", | |||
| 3999 | FT_INT32, BASE_DEC, VALS(snmp_T_operation_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_operation_vals )))), 0, | |||
| 4000 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
| 4001 | }; | |||
| 4002 | ||||
| 4003 | /* List of subtrees */ | |||
| 4004 | static int *ett[] = { | |||
| 4005 | &ett_snmp, | |||
| 4006 | &ett_engineid, | |||
| 4007 | &ett_msgFlags, | |||
| 4008 | &ett_encryptedPDU, | |||
| 4009 | &ett_decrypted, | |||
| 4010 | &ett_authParameters, | |||
| 4011 | &ett_internet, | |||
| 4012 | &ett_varbind, | |||
| 4013 | &ett_name, | |||
| 4014 | &ett_value, | |||
| 4015 | &ett_decoding_error, | |||
| 4016 | &ett_snmp_Message, | |||
| 4017 | &ett_snmp_Messagev2u, | |||
| 4018 | &ett_snmp_T_datav2u, | |||
| 4019 | &ett_snmp_UsmSecurityParameters, | |||
| 4020 | &ett_snmp_SNMPv3Message, | |||
| 4021 | &ett_snmp_HeaderData, | |||
| 4022 | &ett_snmp_ScopedPduData, | |||
| 4023 | &ett_snmp_ScopedPDU, | |||
| 4024 | &ett_snmp_PDUs, | |||
| 4025 | &ett_snmp_PDU, | |||
| 4026 | &ett_snmp_BulkPDU, | |||
| 4027 | &ett_snmp_Trap_PDU_U, | |||
| 4028 | &ett_snmp_VarBind, | |||
| 4029 | &ett_snmp_VarBindList, | |||
| 4030 | &ett_snmp_SMUX_PDUs, | |||
| 4031 | &ett_snmp_RegisterResponse, | |||
| 4032 | &ett_snmp_OpenPDU, | |||
| 4033 | &ett_snmp_SimpleOpen_U, | |||
| 4034 | &ett_snmp_RReqPDU_U, | |||
| 4035 | }; | |||
| 4036 | static ei_register_info ei[] = { | |||
| 4037 | { &ei_snmp_failed_decrypted_data_pdu, { "snmp.failed_decrypted_data_pdu", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Failed to decrypt encryptedPDU", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4038 | { &ei_snmp_decrypted_data_bad_formatted, { "snmp.decrypted_data_bad_formatted", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Decrypted data not formatted as expected, wrong key?", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4039 | { &ei_snmp_verify_authentication_error, { "snmp.verify_authentication_error", PI_MALFORMED0x07000000, PI_ERROR0x00800000, "Error while verifying Message authenticity", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4040 | { &ei_snmp_authentication_ok, { "snmp.authentication_ok", PI_CHECKSUM0x01000000, PI_CHAT0x00200000, "SNMP Authentication OK", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4041 | { &ei_snmp_authentication_error, { "snmp.authentication_error", PI_CHECKSUM0x01000000, PI_WARN0x00600000, "SNMP Authentication Error", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4042 | { &ei_snmp_varbind_not_uni_class_seq, { "snmp.varbind.not_uni_class_seq", PI_MALFORMED0x07000000, PI_WARN0x00600000, "VarBind is not an universal class sequence", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4043 | { &ei_snmp_varbind_has_indicator, { "snmp.varbind.has_indicator", PI_MALFORMED0x07000000, PI_WARN0x00600000, "VarBind has indicator set", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4044 | { &ei_snmp_objectname_not_oid, { "snmp.objectname_not_oid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "ObjectName not an OID", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4045 | { &ei_snmp_objectname_has_indicator, { "snmp.objectname_has_indicator", PI_MALFORMED0x07000000, PI_WARN0x00600000, "ObjectName has indicator set", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4046 | { &ei_snmp_value_not_primitive_encoding, { "snmp.value_not_primitive_encoding", PI_MALFORMED0x07000000, PI_WARN0x00600000, "value not in primitive encoding", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4047 | { &ei_snmp_invalid_oid, { "snmp.invalid_oid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "invalid oid", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4048 | { &ei_snmp_varbind_wrong_tag, { "snmp.varbind.wrong_tag", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong tag for SNMP VarBind error value", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4049 | { &ei_snmp_varbind_response, { "snmp.varbind.response", PI_RESPONSE_CODE0x03000000, PI_NOTE0x00400000, "Response", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4050 | { &ei_snmp_no_instance_subid, { "snmp.no_instance_subid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "No instance sub-id in scalar value", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4051 | { &ei_snmp_wrong_num_of_subids, { "snmp.wrong_num_of_subids", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong number of instance sub-ids in scalar value", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4052 | { &ei_snmp_index_suboid_too_short, { "snmp.index_suboid_too_short", PI_MALFORMED0x07000000, PI_WARN0x00600000, "index sub-oid shorter than expected", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4053 | { &ei_snmp_unimplemented_instance_index, { "snmp.unimplemented_instance_index", PI_UNDECODED0x05000000, PI_WARN0x00600000, "OID instances not handled, if you want this implemented please contact the wireshark developers", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4054 | { &ei_snmp_index_suboid_len0, { "snmp.ndex_suboid_len0", PI_MALFORMED0x07000000, PI_WARN0x00600000, "an index sub-oid OID cannot be 0 bytes long!", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4055 | { &ei_snmp_index_suboid_too_long, { "snmp.index_suboid_too_long", PI_MALFORMED0x07000000, PI_WARN0x00600000, "index sub-oid should not be longer than remaining oid size", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4056 | { &ei_snmp_index_string_too_long, { "snmp.index_string_too_long", PI_MALFORMED0x07000000, PI_WARN0x00600000, "index string should not be longer than remaining oid size", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4057 | { &ei_snmp_column_parent_not_row, { "snmp.column_parent_not_row", PI_MALFORMED0x07000000, PI_ERROR0x00800000, "COLUMNS's parent is not a ROW", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4058 | { &ei_snmp_uint_too_large, { "snmp.uint_too_large", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Unsigned integer value > 2^64 - 1", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4059 | { &ei_snmp_int_too_large, { "snmp.int_too_large", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Signed integer value > 2^63 - 1 or <= -2^63", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4060 | { &ei_snmp_integral_value0, { "snmp.integral_value0", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Integral value is zero-length", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4061 | { &ei_snmp_missing_mib, { "snmp.missing_mib", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Unresolved value, Missing MIB", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4062 | { &ei_snmp_varbind_wrong_length_value, { "snmp.varbind.wrong_length_value", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong length for SNMP VarBind/value", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4063 | { &ei_snmp_varbind_wrong_class_tag, { "snmp.varbind.wrong_class_tag", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong class/tag for SNMP VarBind/value", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4064 | { &ei_snmp_rfc1910_non_conformant, { "snmp.rfc1910_non_conformant", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Data not conforming to RFC1910", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4065 | { &ei_snmp_rfc3411_non_conformant, { "snmp.rfc3411_non_conformant", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Data not conforming to RFC3411", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4066 | { &ei_snmp_version_unknown, { "snmp.version.unknown", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Unknown version", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4067 | { &ei_snmp_trap_pdu_obsolete, { "snmp.trap_pdu_obsolete", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Trap-PDU is obsolete in this SNMP version", EXPFILL0, ((void*)0), 0, ((void*)0), {0, {((void*)0), ((void*)0), FT_NONE , BASE_NONE, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE , -1, ((void*)0)}} }}, | |||
| 4068 | ||||
| 4069 | }; | |||
| 4070 | ||||
| 4071 | expert_module_t* expert_snmp; | |||
| 4072 | module_t *snmp_module; | |||
| 4073 | ||||
| 4074 | static uat_field_t users_fields[] = { | |||
| 4075 | UAT_FLD_BUFFER(snmp_users,engine_id,"Engine ID","Engine-id for this entry (empty = any)"){"engine_id", "Engine ID", PT_TXTMOD_HEXBYTES,{0,snmp_users_engine_id_set_cb ,snmp_users_engine_id_tostr_cb},{0,0,0},0,"Engine-id for this entry (empty = any)" ,((void*)0)}, | |||
| 4076 | UAT_FLD_LSTRING(snmp_users,userName,"Username","The username"){"userName", "Username", PT_TXTMOD_STRING,{0,snmp_users_userName_set_cb ,snmp_users_userName_tostr_cb},{0,0,0},0,"The username",((void *)0)}, | |||
| 4077 | UAT_FLD_VS(snmp_users,auth_model,"Authentication model",auth_types,"Algorithm to be used for authentication."){"auth_model", "Authentication model", PT_TXTMOD_ENUM,{uat_fld_chk_enum ,snmp_users_auth_model_set_cb,snmp_users_auth_model_tostr_cb} ,{&(auth_types),&(auth_types),&(auth_types)},& (auth_types),"Algorithm to be used for authentication.",((void *)0)}, | |||
| 4078 | UAT_FLD_LSTRING(snmp_users,authPassword,"Password","The password used for authenticating packets for this entry"){"authPassword", "Password", PT_TXTMOD_STRING,{0,snmp_users_authPassword_set_cb ,snmp_users_authPassword_tostr_cb},{0,0,0},0,"The password used for authenticating packets for this entry" ,((void*)0)}, | |||
| 4079 | UAT_FLD_VS(snmp_users,priv_proto,"Privacy protocol",priv_types,"Algorithm to be used for privacy."){"priv_proto", "Privacy protocol", PT_TXTMOD_ENUM,{uat_fld_chk_enum ,snmp_users_priv_proto_set_cb,snmp_users_priv_proto_tostr_cb} ,{&(priv_types),&(priv_types),&(priv_types)},& (priv_types),"Algorithm to be used for privacy.",((void*)0)}, | |||
| 4080 | UAT_FLD_LSTRING(snmp_users,privPassword,"Privacy password","The password used for encrypting packets for this entry"){"privPassword", "Privacy password", PT_TXTMOD_STRING,{0,snmp_users_privPassword_set_cb ,snmp_users_privPassword_tostr_cb},{0,0,0},0,"The password used for encrypting packets for this entry" ,((void*)0)}, | |||
| 4081 | UAT_FLD_VS(snmp_users,priv_key_exp,"Key expansion method",priv_key_exp_types,"Privacy protocol key expansion method"){"priv_key_exp", "Key expansion method", PT_TXTMOD_ENUM,{uat_fld_chk_enum ,snmp_users_priv_key_exp_set_cb,snmp_users_priv_key_exp_tostr_cb },{&(priv_key_exp_types),&(priv_key_exp_types),&( priv_key_exp_types)},&(priv_key_exp_types),"Privacy protocol key expansion method" ,((void*)0)}, | |||
| 4082 | UAT_END_FIELDS{((void*)0),((void*)0),PT_TXTMOD_NONE,{0,0,0},{0,0,0},0,0,((void *)0)} | |||
| 4083 | }; | |||
| 4084 | ||||
| 4085 | uat_t *assocs_uat = uat_new("SNMP Users", | |||
| 4086 | sizeof(snmp_ue_assoc_t), | |||
| 4087 | "snmp_users", | |||
| 4088 | true1, | |||
| 4089 | &ueas, | |||
| 4090 | &num_ueas, | |||
| 4091 | UAT_AFFECTS_DISSECTION0x00000001, /* affects dissection of packets, but not set of named fields */ | |||
| 4092 | "ChSNMPUsersSection", | |||
| 4093 | snmp_users_copy_cb, | |||
| 4094 | snmp_users_update_cb, | |||
| 4095 | snmp_users_free_cb, | |||
| 4096 | renew_ue_cache, | |||
| 4097 | NULL((void*)0), | |||
| 4098 | users_fields); | |||
| 4099 | ||||
| 4100 | static const char *assocs_uat_defaults[] = { | |||
| 4101 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), "draft-reeder-snmpv3-usm-3desede-00"}; | |||
| 4102 | uat_set_default_values(assocs_uat, assocs_uat_defaults); | |||
| 4103 | ||||
| 4104 | static uat_field_t specific_traps_flds[] = { | |||
| 4105 | UAT_FLD_CSTRING(specific_traps,enterprise,"Enterprise OID","Enterprise Object Identifier"){"enterprise", "Enterprise OID", PT_TXTMOD_STRING,{uat_fld_chk_str ,specific_traps_enterprise_set_cb,specific_traps_enterprise_tostr_cb },{0,0,0},0,"Enterprise Object Identifier",((void*)0)}, | |||
| 4106 | UAT_FLD_DEC(specific_traps,trap,"Trap Id","The specific-trap value"){"trap", "Trap Id", PT_TXTMOD_STRING,{uat_fld_chk_num_dec,specific_traps_trap_set_cb ,specific_traps_trap_tostr_cb},{0,0,0},0,"The specific-trap value" ,((void*)0)}, | |||
| 4107 | UAT_FLD_CSTRING(specific_traps,desc,"Description","Trap type description"){"desc", "Description", PT_TXTMOD_STRING,{uat_fld_chk_str,specific_traps_desc_set_cb ,specific_traps_desc_tostr_cb},{0,0,0},0,"Trap type description" ,((void*)0)}, | |||
| 4108 | UAT_END_FIELDS{((void*)0),((void*)0),PT_TXTMOD_NONE,{0,0,0},{0,0,0},0,0,((void *)0)} | |||
| 4109 | }; | |||
| 4110 | ||||
| 4111 | uat_t* specific_traps_uat = uat_new("SNMP Enterprise Specific Trap Types", | |||
| 4112 | sizeof(snmp_st_assoc_t), | |||
| 4113 | "snmp_specific_traps", | |||
| 4114 | true1, | |||
| 4115 | &specific_traps, | |||
| 4116 | &num_specific_traps, | |||
| 4117 | UAT_AFFECTS_DISSECTION0x00000001, /* affects dissection of packets, but not set of named fields */ | |||
| 4118 | "ChSNMPEnterpriseSpecificTrapTypes", | |||
| 4119 | snmp_specific_trap_copy_cb, | |||
| 4120 | NULL((void*)0), | |||
| 4121 | snmp_specific_trap_free_cb, | |||
| 4122 | NULL((void*)0), | |||
| 4123 | NULL((void*)0), | |||
| 4124 | specific_traps_flds); | |||
| 4125 | ||||
| 4126 | /* Register protocol */ | |||
| 4127 | proto_snmp = proto_register_protocol("Simple Network Management Protocol", "SNMP", "snmp"); | |||
| 4128 | snmp_handle = register_dissector("snmp", dissect_snmp, proto_snmp); | |||
| 4129 | ||||
| 4130 | /* Register fields and subtrees */ | |||
| 4131 | proto_register_field_array(proto_snmp, hf, array_length(hf)(sizeof (hf) / sizeof (hf)[0])); | |||
| 4132 | proto_register_subtree_array(ett, array_length(ett)(sizeof (ett) / sizeof (ett)[0])); | |||
| 4133 | expert_snmp = expert_register_protocol(proto_snmp); | |||
| 4134 | expert_register_field_array(expert_snmp, ei, array_length(ei)(sizeof (ei) / sizeof (ei)[0])); | |||
| 4135 | ||||
| 4136 | /* Register dissector */ | |||
| 4137 | snmp_tcp_handle = register_dissector("snmp.tcp", dissect_snmp_tcp, proto_snmp); | |||
| 4138 | ||||
| 4139 | /* Register configuration preferences */ | |||
| 4140 | snmp_module = prefs_register_protocol(proto_snmp, process_prefs); | |||
| 4141 | prefs_register_bool_preference(snmp_module, "display_oid", | |||
| 4142 | "Show SNMP OID in info column", | |||
| 4143 | "Whether the SNMP OID should be shown in the info column", | |||
| 4144 | &display_oid); | |||
| 4145 | ||||
| 4146 | prefs_register_obsolete_preference(snmp_module, "mib_modules"); | |||
| 4147 | prefs_register_obsolete_preference(snmp_module, "users_file"); | |||
| 4148 | ||||
| 4149 | prefs_register_bool_preference(snmp_module, "desegment", | |||
| 4150 | "Reassemble SNMP-over-TCP messages spanning multiple TCP segments", | |||
| 4151 | "Whether the SNMP dissector should reassemble messages spanning multiple TCP segments." | |||
| 4152 | " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.", | |||
| 4153 | &snmp_desegment); | |||
| 4154 | ||||
| 4155 | prefs_register_bool_preference(snmp_module, "var_in_tree", | |||
| 4156 | "Display dissected variables inside SNMP tree", | |||
| 4157 | "ON - display dissected variables inside SNMP tree, OFF - display dissected variables in root tree after SNMP", | |||
| 4158 | &snmp_var_in_tree); | |||
| 4159 | ||||
| 4160 | prefs_register_uat_preference(snmp_module, "users_table", | |||
| 4161 | "Users Table", | |||
| 4162 | "Table of engine-user associations used for authentication and decryption", | |||
| 4163 | assocs_uat); | |||
| 4164 | ||||
| 4165 | prefs_register_uat_preference(snmp_module, "specific_traps_table", | |||
| 4166 | "Enterprise Specific Trap Types", | |||
| 4167 | "Table of enterprise specific-trap type descriptions", | |||
| 4168 | specific_traps_uat); | |||
| 4169 | ||||
| 4170 | #ifdef HAVE_LIBSMI1 | |||
| 4171 | prefs_register_static_text_preference(snmp_module, "info_mibs", | |||
| 4172 | "MIB settings can be changed in the Name Resolution preferences", | |||
| 4173 | "MIB settings can be changed in the Name Resolution preferences"); | |||
| 4174 | #endif | |||
| 4175 | ||||
| 4176 | value_sub_dissectors_table = register_dissector_table("snmp.variable_oid","SNMP Variable OID", proto_snmp, FT_STRING, STRING_CASE_SENSITIVE0); | |||
| 4177 | ||||
| 4178 | register_init_routine(init_ue_cache); | |||
| 4179 | register_cleanup_routine(cleanup_ue_cache); | |||
| 4180 | ||||
| 4181 | register_ber_syntax_dissector("SNMP", proto_snmp, dissect_snmp_tcp); | |||
| 4182 | ||||
| 4183 | snmp_tap=register_tap("snmp"); | |||
| 4184 | ||||
| 4185 | register_srt_table(proto_snmp, NULL((void*)0), 1, snmpstat_packet, snmpstat_init, NULL((void*)0)); | |||
| 4186 | } | |||
| 4187 | ||||
| 4188 | ||||
| 4189 | /*--- proto_reg_handoff_snmp ---------------------------------------*/ | |||
| 4190 | void proto_reg_handoff_snmp(void) { | |||
| 4191 | ||||
| 4192 | dissector_add_uint_with_preference("udp.port", UDP_PORT_SNMP161, snmp_handle); | |||
| 4193 | dissector_add_uint("ethertype", ETHERTYPE_SNMP0x814C, snmp_handle); | |||
| 4194 | dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_AGENT0x900F, snmp_handle); | |||
| 4195 | dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_SINK0x9010, snmp_handle); | |||
| 4196 | dissector_add_uint("hpext.dxsap", HPEXT_SNMP0x165A, snmp_handle); | |||
| 4197 | ||||
| 4198 | dissector_add_uint_with_preference("tcp.port", TCP_PORT_SNMP161, snmp_tcp_handle); | |||
| 4199 | /* Since "regular" SNMP port and "trap" SNMP port use the same handler, | |||
| 4200 | the "trap" port doesn't really need a separate preference. Just register | |||
| 4201 | normally */ | |||
| 4202 | dissector_add_uint("tcp.port", TCP_PORT_SNMP_TRAP162, snmp_tcp_handle); | |||
| 4203 | dissector_add_uint("udp.port", UDP_PORT_SNMP_TRAP162, snmp_handle); | |||
| 4204 | dissector_add_uint("udp.port", UDP_PORT_SNMP_PATROL8161, snmp_handle); | |||
| 4205 | ||||
| 4206 | data_handle = find_dissector("data"); | |||
| 4207 | ||||
| 4208 | /* SNMPv2-MIB sysDescr "1.3.6.1.2.1.1.1.0" */ | |||
| 4209 | dissector_add_string("snmp.variable_oid", "1.3.6.1.2.1.1.1.0", | |||
| 4210 | create_dissector_handle(dissect_snmp_variable_string, proto_snmp)); | |||
| 4211 | /* SNMPv2-MIB::sysName.0 (1.3.6.1.2.1.1.5.0) */ | |||
| 4212 | dissector_add_string("snmp.variable_oid", "1.3.6.1.2.1.1.5.0", | |||
| 4213 | create_dissector_handle(dissect_snmp_variable_string, proto_snmp)); | |||
| 4214 | ||||
| 4215 | /* | |||
| 4216 | * Process preference settings. | |||
| 4217 | * | |||
| 4218 | * We can't do this in the register routine, as preferences aren't | |||
| 4219 | * read until all dissector register routines have been called (so | |||
| 4220 | * that all dissector preferences have been registered). | |||
| 4221 | */ | |||
| 4222 | process_prefs(); | |||
| 4223 | ||||
| 4224 | } | |||
| 4225 | ||||
| 4226 | void | |||
| 4227 | proto_register_smux(void) | |||
| 4228 | { | |||
| 4229 | static int *ett[] = { | |||
| 4230 | &ett_smux, | |||
| 4231 | }; | |||
| 4232 | ||||
| 4233 | proto_smux = proto_register_protocol("SNMP Multiplex Protocol", | |||
| 4234 | "SMUX", "smux"); | |||
| 4235 | ||||
| 4236 | proto_register_subtree_array(ett, array_length(ett)(sizeof (ett) / sizeof (ett)[0])); | |||
| 4237 | ||||
| 4238 | smux_handle = register_dissector("smux", dissect_smux, proto_smux); | |||
| 4239 | } | |||
| 4240 | ||||
| 4241 | void | |||
| 4242 | proto_reg_handoff_smux(void) | |||
| 4243 | { | |||
| 4244 | dissector_add_uint_with_preference("tcp.port", TCP_PORT_SMUX199, smux_handle); | |||
| 4245 | } | |||
| 4246 | ||||
| 4247 | /* | |||
| 4248 | * Editor modelines - https://www.wireshark.org/tools/modelines.html | |||
| 4249 | * | |||
| 4250 | * Local variables: | |||
| 4251 | * c-basic-offset: 8 | |||
| 4252 | * tab-width: 8 | |||
| 4253 | * indent-tabs-mode: t | |||
| 4254 | * End: | |||
| 4255 | * | |||
| 4256 | * vi: set shiftwidth=8 tabstop=8 noexpandtab: | |||
| 4257 | * :indentSize=8:tabSize=8:noTabs=false: | |||
| 4258 | */ |