File: | builds/wireshark/wireshark/epan/dissectors/packet-snmp.c |
Warning: | line 3545, column 11 Assigned value is garbage or undefined |
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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 <[email protected]> | |||
24 | * | |||
25 | * Wireshark - Network traffic analyzer | |||
26 | * By Gerald Combs <[email protected]> | |||
27 | * Copyright 1998 Gerald Combs | |||
28 | * | |||
29 | * Some stuff from: | |||
30 | * | |||
31 | * GXSNMP -- An snmp mangament 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 PNAME"Simple Network Management Protocol" "Simple Network Management Protocol" | |||
67 | #define PSNAME"SNMP" "SNMP" | |||
68 | #define PFNAME"snmp" "snmp" | |||
69 | ||||
70 | #define UDP_PORT_SNMP161 161 | |||
71 | #define UDP_PORT_SNMP_TRAP162 162 | |||
72 | #define TCP_PORT_SNMP161 161 | |||
73 | #define TCP_PORT_SNMP_TRAP162 162 | |||
74 | #define TCP_PORT_SMUX199 199 | |||
75 | #define UDP_PORT_SNMP_PATROL8161 8161 | |||
76 | #define SNMP_NUM_PROCEDURES8 8 | |||
77 | ||||
78 | /* Initialize the protocol and registered fields */ | |||
79 | static int snmp_tap; | |||
80 | static int proto_snmp; | |||
81 | static int proto_smux; | |||
82 | ||||
83 | static bool_Bool display_oid = true1; | |||
84 | static bool_Bool snmp_var_in_tree = true1; | |||
85 | ||||
86 | void proto_register_snmp(void); | |||
87 | void proto_reg_handoff_snmp(void); | |||
88 | void proto_register_smux(void); | |||
89 | void proto_reg_handoff_smux(void); | |||
90 | ||||
91 | static void snmp_usm_password_to_key(const snmp_usm_auth_model_t model, const uint8_t *password, unsigned passwordlen, | |||
92 | const uint8_t *engineID, unsigned engineLength, uint8_t *key); | |||
93 | ||||
94 | static tvbuff_t* snmp_usm_priv_des(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
95 | static tvbuff_t* snmp_usm_priv_aes128(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
96 | static tvbuff_t* snmp_usm_priv_aes192(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
97 | static tvbuff_t* snmp_usm_priv_aes256(snmp_usm_params_t*, tvbuff_t*, packet_info *pinfo, char const**); | |||
98 | ||||
99 | 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**); | |||
100 | ||||
101 | static const value_string auth_types[] = { | |||
102 | {SNMP_USM_AUTH_MD5,"MD5"}, | |||
103 | {SNMP_USM_AUTH_SHA1,"SHA1"}, | |||
104 | {SNMP_USM_AUTH_SHA2_224,"SHA2-224"}, | |||
105 | {SNMP_USM_AUTH_SHA2_256,"SHA2-256"}, | |||
106 | {SNMP_USM_AUTH_SHA2_384,"SHA2-384"}, | |||
107 | {SNMP_USM_AUTH_SHA2_512,"SHA2-512"}, | |||
108 | {0,NULL((void*)0)} | |||
109 | }; | |||
110 | ||||
111 | static const unsigned auth_hash_len[] = { | |||
112 | HASH_MD5_LENGTH16, | |||
113 | HASH_SHA1_LENGTH20, | |||
114 | HASH_SHA2_224_LENGTH28, | |||
115 | HASH_SHA2_256_LENGTH32, | |||
116 | HASH_SHA2_384_LENGTH48, | |||
117 | HASH_SHA2_512_LENGTH64 | |||
118 | }; | |||
119 | ||||
120 | static const unsigned auth_tag_len[] = { | |||
121 | 12, | |||
122 | 12, | |||
123 | 16, | |||
124 | 24, | |||
125 | 32, | |||
126 | 48 | |||
127 | }; | |||
128 | ||||
129 | static const enum gcry_md_algos auth_hash_algo[] = { | |||
130 | GCRY_MD_MD5, | |||
131 | GCRY_MD_SHA1, | |||
132 | GCRY_MD_SHA224, | |||
133 | GCRY_MD_SHA256, | |||
134 | GCRY_MD_SHA384, | |||
135 | GCRY_MD_SHA512 | |||
136 | }; | |||
137 | ||||
138 | #define PRIV_DES0 0 | |||
139 | #define PRIV_AES1281 1 | |||
140 | #define PRIV_AES1922 2 | |||
141 | #define PRIV_AES2563 3 | |||
142 | ||||
143 | static const value_string priv_types[] = { | |||
144 | { PRIV_DES0, "DES" }, | |||
145 | { PRIV_AES1281, "AES" }, | |||
146 | { PRIV_AES1922, "AES192" }, | |||
147 | { PRIV_AES2563, "AES256" }, | |||
148 | { 0, NULL((void*)0)} | |||
149 | }; | |||
150 | static snmp_usm_decoder_t priv_protos[] = { | |||
151 | snmp_usm_priv_des, | |||
152 | snmp_usm_priv_aes128, | |||
153 | snmp_usm_priv_aes192, | |||
154 | snmp_usm_priv_aes256 | |||
155 | }; | |||
156 | ||||
157 | #define PRIVKEYEXP_USM_3DESDESEDE_000 0 | |||
158 | #define PRIVKEYEXP_AGENTPP1 1 | |||
159 | ||||
160 | static const value_string priv_key_exp_types[] = { | |||
161 | { PRIVKEYEXP_USM_3DESDESEDE_000, "draft-reeder-snmpv3-usm-3desede-00" }, | |||
162 | { PRIVKEYEXP_AGENTPP1, "AGENT++" }, | |||
163 | { 0, NULL((void*)0) } | |||
164 | }; | |||
165 | ||||
166 | static snmp_ue_assoc_t* ueas; | |||
167 | static unsigned num_ueas; | |||
168 | static snmp_ue_assoc_t* localized_ues; | |||
169 | static snmp_ue_assoc_t* unlocalized_ues; | |||
170 | /****/ | |||
171 | ||||
172 | /* Variables used for handling enterprise specific trap types */ | |||
173 | typedef struct _snmp_st_assoc_t { | |||
174 | char *enterprise; | |||
175 | unsigned trap; | |||
176 | char *desc; | |||
177 | } snmp_st_assoc_t; | |||
178 | static unsigned num_specific_traps; | |||
179 | static snmp_st_assoc_t *specific_traps; | |||
180 | static const char *enterprise_oid; | |||
181 | static unsigned generic_trap; | |||
182 | static uint32_t snmp_version; | |||
183 | static uint32_t RequestID = -1; | |||
184 | ||||
185 | static snmp_usm_params_t usm_p; | |||
186 | ||||
187 | #define TH_AUTH0x01 0x01 | |||
188 | #define TH_CRYPT0x02 0x02 | |||
189 | #define TH_REPORT0x04 0x04 | |||
190 | ||||
191 | /* desegmentation of SNMP-over-TCP */ | |||
192 | static bool_Bool snmp_desegment = true1; | |||
193 | ||||
194 | /* Global variables */ | |||
195 | ||||
196 | uint32_t MsgSecurityModel; | |||
197 | tvbuff_t *oid_tvb=NULL((void*)0); | |||
198 | tvbuff_t *value_tvb=NULL((void*)0); | |||
199 | ||||
200 | static dissector_handle_t snmp_handle; | |||
201 | static dissector_handle_t snmp_tcp_handle; | |||
202 | static dissector_handle_t data_handle; | |||
203 | static dissector_handle_t smux_handle; | |||
204 | ||||
205 | static next_tvb_list_t *var_list; | |||
206 | ||||
207 | static int hf_snmp_response_in; | |||
208 | static int hf_snmp_response_to; | |||
209 | static int hf_snmp_time; | |||
210 | ||||
211 | static int hf_snmp_v3_flags_auth; | |||
212 | static int hf_snmp_v3_flags_crypt; | |||
213 | static int hf_snmp_v3_flags_report; | |||
214 | ||||
215 | static int hf_snmp_engineid_conform; | |||
216 | static int hf_snmp_engineid_enterprise; | |||
217 | static int hf_snmp_engineid_format; | |||
218 | static int hf_snmp_engineid_ipv4; | |||
219 | static int hf_snmp_engineid_ipv6; | |||
220 | static int hf_snmp_engineid_cisco_type; | |||
221 | static int hf_snmp_engineid_mac; | |||
222 | static int hf_snmp_engineid_text; | |||
223 | static int hf_snmp_engineid_time; | |||
224 | static int hf_snmp_engineid_data; | |||
225 | static int hf_snmp_decryptedPDU; | |||
226 | static int hf_snmp_msgAuthentication; | |||
227 | ||||
228 | static int hf_snmp_noSuchObject; | |||
229 | static int hf_snmp_noSuchInstance; | |||
230 | static int hf_snmp_endOfMibView; | |||
231 | static int hf_snmp_unSpecified; | |||
232 | ||||
233 | static int hf_snmp_integer32_value; | |||
234 | static int hf_snmp_octetstring_value; | |||
235 | static int hf_snmp_oid_value; | |||
236 | static int hf_snmp_null_value; | |||
237 | static int hf_snmp_ipv4_value; | |||
238 | static int hf_snmp_ipv6_value; | |||
239 | static int hf_snmp_anyaddress_value; | |||
240 | static int hf_snmp_unsigned32_value; | |||
241 | static int hf_snmp_unknown_value; | |||
242 | static int hf_snmp_opaque_value; | |||
243 | static int hf_snmp_nsap_value; | |||
244 | static int hf_snmp_counter_value; | |||
245 | static int hf_snmp_timeticks_value; | |||
246 | static int hf_snmp_big_counter_value; | |||
247 | static int hf_snmp_gauge32_value; | |||
248 | ||||
249 | static int hf_snmp_objectname; | |||
250 | static int hf_snmp_scalar_instance_index; | |||
251 | ||||
252 | static int hf_snmp_var_bind_str; | |||
253 | static int hf_snmp_agentid_trailer; | |||
254 | ||||
255 | static int hf_snmp_SMUX_PDUs_PDU; /* SMUX_PDUs */ | |||
256 | static int hf_snmp_version; /* Version */ | |||
257 | static int hf_snmp_community; /* Community */ | |||
258 | static int hf_snmp_data; /* PDUs */ | |||
259 | static int hf_snmp_parameters; /* OCTET_STRING */ | |||
260 | static int hf_snmp_datav2u; /* T_datav2u */ | |||
261 | static int hf_snmp_v2u_plaintext; /* PDUs */ | |||
262 | static int hf_snmp_encrypted; /* OCTET_STRING */ | |||
263 | static int hf_snmp_msgAuthoritativeEngineID; /* T_msgAuthoritativeEngineID */ | |||
264 | static int hf_snmp_msgAuthoritativeEngineBoots; /* T_msgAuthoritativeEngineBoots */ | |||
265 | static int hf_snmp_msgAuthoritativeEngineTime; /* T_msgAuthoritativeEngineTime */ | |||
266 | static int hf_snmp_msgUserName; /* T_msgUserName */ | |||
267 | static int hf_snmp_msgAuthenticationParameters; /* T_msgAuthenticationParameters */ | |||
268 | static int hf_snmp_msgPrivacyParameters; /* T_msgPrivacyParameters */ | |||
269 | static int hf_snmp_msgVersion; /* Version */ | |||
270 | static int hf_snmp_msgGlobalData; /* HeaderData */ | |||
271 | static int hf_snmp_msgSecurityParameters; /* T_msgSecurityParameters */ | |||
272 | static int hf_snmp_msgData; /* ScopedPduData */ | |||
273 | static int hf_snmp_msgID; /* INTEGER_0_2147483647 */ | |||
274 | static int hf_snmp_msgMaxSize; /* INTEGER_484_2147483647 */ | |||
275 | static int hf_snmp_msgFlags; /* T_msgFlags */ | |||
276 | static int hf_snmp_msgSecurityModel; /* T_msgSecurityModel */ | |||
277 | static int hf_snmp_plaintext; /* ScopedPDU */ | |||
278 | static int hf_snmp_encryptedPDU; /* T_encryptedPDU */ | |||
279 | static int hf_snmp_contextEngineID; /* SnmpEngineID */ | |||
280 | static int hf_snmp_contextName; /* OCTET_STRING */ | |||
281 | static int hf_snmp_get_request; /* GetRequest_PDU */ | |||
282 | static int hf_snmp_get_next_request; /* GetNextRequest_PDU */ | |||
283 | static int hf_snmp_get_response; /* GetResponse_PDU */ | |||
284 | static int hf_snmp_set_request; /* SetRequest_PDU */ | |||
285 | static int hf_snmp_trap; /* Trap_PDU */ | |||
286 | static int hf_snmp_getBulkRequest; /* GetBulkRequest_PDU */ | |||
287 | static int hf_snmp_informRequest; /* InformRequest_PDU */ | |||
288 | static int hf_snmp_snmpV2_trap; /* SNMPv2_Trap_PDU */ | |||
289 | static int hf_snmp_report; /* Report_PDU */ | |||
290 | static int hf_snmp_request_id; /* T_request_id */ | |||
291 | static int hf_snmp_error_status; /* T_error_status */ | |||
292 | static int hf_snmp_error_index; /* INTEGER */ | |||
293 | static int hf_snmp_variable_bindings; /* VarBindList */ | |||
294 | static int hf_snmp_bulkPDU_request_id; /* Integer32 */ | |||
295 | static int hf_snmp_non_repeaters; /* INTEGER_0_2147483647 */ | |||
296 | static int hf_snmp_max_repetitions; /* INTEGER_0_2147483647 */ | |||
297 | static int hf_snmp_enterprise; /* EnterpriseOID */ | |||
298 | static int hf_snmp_agent_addr; /* NetworkAddress */ | |||
299 | static int hf_snmp_generic_trap; /* GenericTrap */ | |||
300 | static int hf_snmp_specific_trap; /* SpecificTrap */ | |||
301 | static int hf_snmp_time_stamp; /* TimeTicks */ | |||
302 | static int hf_snmp_name; /* ObjectName */ | |||
303 | static int hf_snmp_valueType; /* ValueType */ | |||
304 | static int hf_snmp_VarBindList_item; /* VarBind */ | |||
305 | static int hf_snmp_open; /* OpenPDU */ | |||
306 | static int hf_snmp_close; /* ClosePDU */ | |||
307 | static int hf_snmp_registerRequest; /* RReqPDU */ | |||
308 | static int hf_snmp_registerResponse; /* RegisterResponse */ | |||
309 | static int hf_snmp_commitOrRollback; /* SOutPDU */ | |||
310 | static int hf_snmp_rRspPDU; /* RRspPDU */ | |||
311 | static int hf_snmp_pDUs; /* PDUs */ | |||
312 | static int hf_snmp_smux_simple; /* SimpleOpen */ | |||
313 | static int hf_snmp_smux_version; /* T_smux_version */ | |||
314 | static int hf_snmp_identity; /* OBJECT_IDENTIFIER */ | |||
315 | static int hf_snmp_description; /* DisplayString */ | |||
316 | static int hf_snmp_password; /* OCTET_STRING */ | |||
317 | static int hf_snmp_subtree; /* ObjectName */ | |||
318 | static int hf_snmp_priority; /* INTEGER_M1_2147483647 */ | |||
319 | static int hf_snmp_operation; /* T_operation */ | |||
320 | ||||
321 | /* Initialize the subtree pointers */ | |||
322 | static int ett_smux; | |||
323 | static int ett_snmp; | |||
324 | static int ett_engineid; | |||
325 | static int ett_msgFlags; | |||
326 | static int ett_encryptedPDU; | |||
327 | static int ett_decrypted; | |||
328 | static int ett_authParameters; | |||
329 | static int ett_internet; | |||
330 | static int ett_varbind; | |||
331 | static int ett_name; | |||
332 | static int ett_value; | |||
333 | static int ett_decoding_error; | |||
334 | ||||
335 | static int ett_snmp_Message; | |||
336 | static int ett_snmp_Messagev2u; | |||
337 | static int ett_snmp_T_datav2u; | |||
338 | static int ett_snmp_UsmSecurityParameters; | |||
339 | static int ett_snmp_SNMPv3Message; | |||
340 | static int ett_snmp_HeaderData; | |||
341 | static int ett_snmp_ScopedPduData; | |||
342 | static int ett_snmp_ScopedPDU; | |||
343 | static int ett_snmp_PDUs; | |||
344 | static int ett_snmp_PDU; | |||
345 | static int ett_snmp_BulkPDU; | |||
346 | static int ett_snmp_Trap_PDU_U; | |||
347 | static int ett_snmp_VarBind; | |||
348 | static int ett_snmp_VarBindList; | |||
349 | static int ett_snmp_SMUX_PDUs; | |||
350 | static int ett_snmp_RegisterResponse; | |||
351 | static int ett_snmp_OpenPDU; | |||
352 | static int ett_snmp_SimpleOpen_U; | |||
353 | static int ett_snmp_RReqPDU_U; | |||
354 | ||||
355 | static expert_field ei_snmp_failed_decrypted_data_pdu; | |||
356 | static expert_field ei_snmp_decrypted_data_bad_formatted; | |||
357 | static expert_field ei_snmp_verify_authentication_error; | |||
358 | static expert_field ei_snmp_authentication_ok; | |||
359 | static expert_field ei_snmp_authentication_error; | |||
360 | static expert_field ei_snmp_varbind_not_uni_class_seq; | |||
361 | static expert_field ei_snmp_varbind_has_indicator; | |||
362 | static expert_field ei_snmp_objectname_not_oid; | |||
363 | static expert_field ei_snmp_objectname_has_indicator; | |||
364 | static expert_field ei_snmp_value_not_primitive_encoding; | |||
365 | static expert_field ei_snmp_invalid_oid; | |||
366 | static expert_field ei_snmp_varbind_wrong_tag; | |||
367 | static expert_field ei_snmp_varbind_response; | |||
368 | static expert_field ei_snmp_no_instance_subid; | |||
369 | static expert_field ei_snmp_wrong_num_of_subids; | |||
370 | static expert_field ei_snmp_index_suboid_too_short; | |||
371 | static expert_field ei_snmp_unimplemented_instance_index; | |||
372 | static expert_field ei_snmp_index_suboid_len0; | |||
373 | static expert_field ei_snmp_index_suboid_too_long; | |||
374 | static expert_field ei_snmp_index_string_too_long; | |||
375 | static expert_field ei_snmp_column_parent_not_row; | |||
376 | static expert_field ei_snmp_uint_too_large; | |||
377 | static expert_field ei_snmp_int_too_large; | |||
378 | static expert_field ei_snmp_integral_value0; | |||
379 | static expert_field ei_snmp_missing_mib; | |||
380 | static expert_field ei_snmp_varbind_wrong_length_value; | |||
381 | static expert_field ei_snmp_varbind_wrong_class_tag; | |||
382 | static expert_field ei_snmp_rfc1910_non_conformant; | |||
383 | static expert_field ei_snmp_rfc3411_non_conformant; | |||
384 | static expert_field ei_snmp_version_unknown; | |||
385 | static expert_field ei_snmp_trap_pdu_obsolete; | |||
386 | ||||
387 | static const true_false_string auth_flags = { | |||
388 | "OK", | |||
389 | "Failed" | |||
390 | }; | |||
391 | ||||
392 | /* Security Models */ | |||
393 | ||||
394 | #define SNMP_SEC_ANY0 0 | |||
395 | #define SNMP_SEC_V11 1 | |||
396 | #define SNMP_SEC_V2C2 2 | |||
397 | #define SNMP_SEC_USM3 3 | |||
398 | ||||
399 | static const value_string sec_models[] = { | |||
400 | { SNMP_SEC_ANY0, "Any" }, | |||
401 | { SNMP_SEC_V11, "V1" }, | |||
402 | { SNMP_SEC_V2C2, "V2C" }, | |||
403 | { SNMP_SEC_USM3, "USM" }, | |||
404 | { 0, NULL((void*)0) } | |||
405 | }; | |||
406 | ||||
407 | #if 0 | |||
408 | /* SMUX PDU types */ | |||
409 | #define SMUX_MSG_OPEN 0 | |||
410 | #define SMUX_MSG_CLOSE 1 | |||
411 | #define SMUX_MSG_RREQ 2 | |||
412 | #define SMUX_MSG_RRSP 3 | |||
413 | #define SMUX_MSG_SOUT 4 | |||
414 | ||||
415 | static const value_string smux_types[] = { | |||
416 | { SMUX_MSG_OPEN, "Open" }, | |||
417 | { SMUX_MSG_CLOSE, "Close" }, | |||
418 | { SMUX_MSG_RREQ, "Registration Request" }, | |||
419 | { SMUX_MSG_RRSP, "Registration Response" }, | |||
420 | { SMUX_MSG_SOUT, "Commit Or Rollback" }, | |||
421 | { 0, NULL((void*)0) } | |||
422 | }; | |||
423 | #endif | |||
424 | ||||
425 | /* Procedure names (used in Service Response Time) */ | |||
426 | static const value_string snmp_procedure_names[] = { | |||
427 | { 0, "Get" }, | |||
428 | { 1, "GetNext" }, | |||
429 | { 3, "Set" }, | |||
430 | { 4, "Register" }, | |||
431 | { 5, "Bulk" }, | |||
432 | { 6, "Inform" }, | |||
433 | { 0, NULL((void*)0) } | |||
434 | }; | |||
435 | ||||
436 | #define SNMP_IPA0 0 /* IP Address */ | |||
437 | #define SNMP_CNT1 1 /* Counter (Counter32) */ | |||
438 | #define SNMP_GGE2 2 /* Gauge (Gauge32) */ | |||
439 | #define SNMP_TIT3 3 /* TimeTicks */ | |||
440 | #define SNMP_OPQ4 4 /* Opaque */ | |||
441 | #define SNMP_NSP5 5 /* NsapAddress */ | |||
442 | #define SNMP_C646 6 /* Counter64 */ | |||
443 | #define SNMP_U327 7 /* Uinteger32 */ | |||
444 | ||||
445 | #define SERR_NSO0 0 | |||
446 | #define SERR_NSI1 1 | |||
447 | #define SERR_EOM2 2 | |||
448 | ||||
449 | ||||
450 | dissector_table_t value_sub_dissectors_table; | |||
451 | ||||
452 | /* | |||
453 | * Data structure attached to a conversation, request/response information | |||
454 | */ | |||
455 | typedef struct snmp_conv_info_t { | |||
456 | wmem_map_t *request_response; | |||
457 | } snmp_conv_info_t; | |||
458 | ||||
459 | static snmp_conv_info_t* | |||
460 | snmp_find_conversation_and_get_conv_data(packet_info *pinfo); | |||
461 | ||||
462 | static snmp_request_response_t * | |||
463 | snmp_get_request_response_pointer(wmem_map_t *map, uint32_t requestId) | |||
464 | { | |||
465 | snmp_request_response_t *srrp=(snmp_request_response_t *)wmem_map_lookup(map, &requestId); | |||
466 | if (!srrp) { | |||
467 | srrp=wmem_new0(wmem_file_scope(), snmp_request_response_t)((snmp_request_response_t*)wmem_alloc0((wmem_file_scope()), sizeof (snmp_request_response_t))); | |||
468 | srrp->requestId=requestId; | |||
469 | wmem_map_insert(map, &(srrp->requestId), (void *)srrp); | |||
470 | } | |||
471 | ||||
472 | return srrp; | |||
473 | } | |||
474 | ||||
475 | static snmp_request_response_t* | |||
476 | snmp_match_request_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, unsigned requestId, unsigned procedure_id, snmp_conv_info_t *snmp_info) | |||
477 | { | |||
478 | snmp_request_response_t *srrp=NULL((void*)0); | |||
479 | ||||
480 | 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" , 480, "snmp_info", "No SNMP info from ASN1 context")))); | |||
481 | ||||
482 | /* get or create request/response pointer based on request id */ | |||
483 | srrp=(snmp_request_response_t *)snmp_get_request_response_pointer(snmp_info->request_response, requestId); | |||
484 | ||||
485 | // if not visited fill the request/response data | |||
486 | if (!PINFO_FD_VISITED(pinfo)((pinfo)->fd->visited)) { | |||
487 | switch(procedure_id) | |||
488 | { | |||
489 | case SNMP_REQ_GET0: | |||
490 | case SNMP_REQ_GETNEXT1: | |||
491 | case SNMP_REQ_SET3: | |||
492 | case SNMP_REQ_GETBULK5: | |||
493 | case SNMP_REQ_INFORM6: | |||
494 | srrp->request_frame_id=pinfo->fd->num; | |||
495 | srrp->response_frame_id=0; | |||
496 | srrp->request_time=pinfo->abs_ts; | |||
497 | srrp->request_procedure_id=procedure_id; | |||
498 | break; | |||
499 | case SNMP_RES_GET2: | |||
500 | srrp->response_frame_id=pinfo->fd->num; | |||
501 | break; | |||
502 | default: | |||
503 | return NULL((void*)0); | |||
504 | } | |||
505 | } | |||
506 | ||||
507 | /* if request and response was matched */ | |||
508 | if (srrp->request_frame_id!=0 && srrp->response_frame_id!=0) | |||
509 | { | |||
510 | proto_item *it; | |||
511 | ||||
512 | // if it is the response | |||
513 | if (srrp->response_frame_id == pinfo->fd->num) | |||
514 | { | |||
515 | nstime_t ns; | |||
516 | it=proto_tree_add_uint(tree, hf_snmp_response_to, tvb, 0, 0, srrp->request_frame_id); | |||
517 | proto_item_set_generated(it); | |||
518 | nstime_delta(&ns, &pinfo->abs_ts, &srrp->request_time); | |||
519 | it=proto_tree_add_time(tree, hf_snmp_time, tvb, 0, 0, &ns); | |||
520 | proto_item_set_generated(it); | |||
521 | ||||
522 | return srrp; | |||
523 | } else { | |||
524 | it=proto_tree_add_uint(tree, hf_snmp_response_in, tvb, 0, 0, srrp->response_frame_id); | |||
525 | proto_item_set_generated(it); | |||
526 | } | |||
527 | } | |||
528 | ||||
529 | return NULL((void*)0); | |||
530 | } | |||
531 | ||||
532 | static void | |||
533 | snmpstat_init(struct register_srt* srt _U___attribute__((unused)), GArray* srt_array) | |||
534 | { | |||
535 | srt_stat_table *snmp_srt_table; | |||
536 | uint32_t i; | |||
537 | ||||
538 | snmp_srt_table = init_srt_table("SNMP Commands", NULL((void*)0), srt_array, SNMP_NUM_PROCEDURES8, NULL((void*)0), "snmp.data", NULL((void*)0)); | |||
539 | for (i = 0; i < SNMP_NUM_PROCEDURES8; i++) | |||
540 | { | |||
541 | init_srt_table_row(snmp_srt_table, i, val_to_str_const(i, snmp_procedure_names, "<unknown>")); | |||
542 | } | |||
543 | } | |||
544 | ||||
545 | /* This is called only if request and response was matched -> no need to return anything than TAP_PACKET_REDRAW */ | |||
546 | static tap_packet_status | |||
547 | snmpstat_packet(void *psnmp, packet_info *pinfo, epan_dissect_t *edt _U___attribute__((unused)), const void *psi, tap_flags_t flags _U___attribute__((unused))) | |||
548 | { | |||
549 | unsigned i = 0; | |||
550 | srt_stat_table *snmp_srt_table; | |||
551 | const snmp_request_response_t *snmp=(const snmp_request_response_t *)psi; | |||
552 | srt_data_t *data = (srt_data_t *)psnmp; | |||
553 | ||||
554 | snmp_srt_table = g_array_index(data->srt_array, srt_stat_table*, i)(((srt_stat_table**) (void *) (data->srt_array)->data) [ (i)]); | |||
555 | ||||
556 | add_srt_table_data(snmp_srt_table, snmp->request_procedure_id, &snmp->request_time, pinfo); | |||
557 | return TAP_PACKET_REDRAW; | |||
558 | } | |||
559 | ||||
560 | static const char * | |||
561 | snmp_lookup_specific_trap (unsigned specific_trap) | |||
562 | { | |||
563 | unsigned i; | |||
564 | ||||
565 | for (i = 0; i < num_specific_traps; i++) { | |||
566 | snmp_st_assoc_t *u = &(specific_traps[i]); | |||
567 | ||||
568 | if ((u->trap == specific_trap) && | |||
569 | (strcmp (u->enterprise, enterprise_oid) == 0)) | |||
570 | { | |||
571 | return u->desc; | |||
572 | } | |||
573 | } | |||
574 | ||||
575 | return NULL((void*)0); | |||
576 | } | |||
577 | ||||
578 | static int | |||
579 | dissect_snmp_variable_string(tvbuff_t *tvb, packet_info *pinfo _U___attribute__((unused)), proto_tree *tree, void *data _U___attribute__((unused))) | |||
580 | { | |||
581 | ||||
582 | proto_tree_add_item(tree, hf_snmp_var_bind_str, tvb, 0, -1, ENC_ASCII0x00000000); | |||
583 | ||||
584 | return tvb_captured_length(tvb); | |||
585 | } | |||
586 | ||||
587 | /* | |||
588 | DateAndTime ::= TEXTUAL-CONVENTION | |||
589 | DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d" | |||
590 | STATUS current | |||
591 | DESCRIPTION | |||
592 | "A date-time specification. | |||
593 | ||||
594 | field octets contents range | |||
595 | ----- ------ -------- ----- | |||
596 | 1 1-2 year* 0..65536 | |||
597 | 2 3 month 1..12 | |||
598 | 3 4 day 1..31 | |||
599 | 4 5 hour 0..23 | |||
600 | 5 6 minutes 0..59 | |||
601 | 6 7 seconds 0..60 | |||
602 | (use 60 for leap-second) | |||
603 | 7 8 deci-seconds 0..9 | |||
604 | 8 9 direction from UTC '+' / '-' | |||
605 | 9 10 hours from UTC* 0..13 | |||
606 | 10 11 minutes from UTC 0..59 | |||
607 | ||||
608 | * Notes: | |||
609 | - the value of year is in network-byte order | |||
610 | - daylight saving time in New Zealand is +13 | |||
611 | ||||
612 | For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be | |||
613 | displayed as: | |||
614 | ||||
615 | 1992-5-26,13:30:15.0,-4:0 | |||
616 | ||||
617 | Note that if only local time is known, then timezone | |||
618 | information (fields 8-10) is not present." | |||
619 | SYNTAX OCTET STRING (SIZE (8 | 11)) | |||
620 | */ | |||
621 | static proto_item * | |||
622 | dissect_snmp_variable_date_and_time(proto_tree *tree, packet_info *pinfo, int hfid, tvbuff_t *tvb, int offset, int length) | |||
623 | { | |||
624 | uint16_t year; | |||
625 | uint8_t month; | |||
626 | uint8_t day; | |||
627 | uint8_t hour; | |||
628 | uint8_t minutes; | |||
629 | uint8_t seconds; | |||
630 | uint8_t deci_seconds; | |||
631 | uint8_t hour_from_utc; | |||
632 | uint8_t min_from_utc; | |||
633 | char *str; | |||
634 | ||||
635 | year = tvb_get_ntohs(tvb,offset); | |||
636 | month = tvb_get_uint8(tvb,offset+2); | |||
637 | day = tvb_get_uint8(tvb,offset+3); | |||
638 | hour = tvb_get_uint8(tvb,offset+4); | |||
639 | minutes = tvb_get_uint8(tvb,offset+5); | |||
640 | seconds = tvb_get_uint8(tvb,offset+6); | |||
641 | deci_seconds = tvb_get_uint8(tvb,offset+7); | |||
642 | if(length > 8){ | |||
643 | hour_from_utc = tvb_get_uint8(tvb,offset+9); | |||
644 | min_from_utc = tvb_get_uint8(tvb,offset+10); | |||
645 | ||||
646 | str = wmem_strdup_printf(pinfo->pool, | |||
647 | "%u-%u-%u, %u:%u:%u.%u UTC %s%u:%u", | |||
648 | year, | |||
649 | month, | |||
650 | day, | |||
651 | hour, | |||
652 | minutes, | |||
653 | seconds, | |||
654 | deci_seconds, | |||
655 | tvb_get_string_enc(pinfo->pool,tvb,offset+8,1,ENC_ASCII0x00000000|ENC_NA0x00000000), | |||
656 | hour_from_utc, | |||
657 | min_from_utc); | |||
658 | }else{ | |||
659 | str = wmem_strdup_printf(pinfo->pool, | |||
660 | "%u-%u-%u, %u:%u:%u.%u", | |||
661 | year, | |||
662 | month, | |||
663 | day, | |||
664 | hour, | |||
665 | minutes, | |||
666 | seconds, | |||
667 | deci_seconds); | |||
668 | } | |||
669 | ||||
670 | return proto_tree_add_string(tree, hfid, tvb, offset, length, str); | |||
671 | ||||
672 | } | |||
673 | ||||
674 | /* | |||
675 | * dissect_snmp_VarBind | |||
676 | * this routine dissects variable bindings, looking for the oid information in our oid reporsitory | |||
677 | * to format and add the value adequatelly. | |||
678 | * | |||
679 | * The choice to handwrite this code instead of using the asn compiler is to avoid having tons | |||
680 | * of uses of global variables distributed in very different parts of the code. | |||
681 | * Other than that there's a cosmetic thing: the tree from ASN generated code would be so | |||
682 | * convoluted due to the nesting of CHOICEs in the definition of VarBind/value. | |||
683 | * | |||
684 | * XXX: the length of this function (~400 lines) is an aberration! | |||
685 | * oid_key_t:key_type could become a series of callbacks instead of an enum | |||
686 | * the (! oid_info_is_ok) switch could be made into an array (would be slower) | |||
687 | * | |||
688 | ||||
689 | NetworkAddress ::= CHOICE { internet IpAddress } | |||
690 | IpAddress ::= [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4)) | |||
691 | TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) | |||
692 | Integer32 ::= INTEGER (-2147483648..2147483647) | |||
693 | ObjectName ::= OBJECT IDENTIFIER | |||
694 | Counter32 ::= [APPLICATION 1] IMPLICIT INTEGER (0..4294967295) | |||
695 | Gauge32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) | |||
696 | Unsigned32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) | |||
697 | Integer-value ::= INTEGER (-2147483648..2147483647) | |||
698 | Integer32 ::= INTEGER (-2147483648..2147483647) | |||
699 | ObjectID-value ::= OBJECT IDENTIFIER | |||
700 | Empty ::= NULL | |||
701 | TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) | |||
702 | Opaque ::= [APPLICATION 4] IMPLICIT OCTET STRING | |||
703 | Counter64 ::= [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615) | |||
704 | ||||
705 | ObjectSyntax ::= CHOICE { | |||
706 | simple SimpleSyntax, | |||
707 | application-wide ApplicationSyntax | |||
708 | } | |||
709 | ||||
710 | SimpleSyntax ::= CHOICE { | |||
711 | integer-value Integer-value, | |||
712 | string-value String-value, | |||
713 | objectID-value ObjectID-value, | |||
714 | empty Empty | |||
715 | } | |||
716 | ||||
717 | ApplicationSyntax ::= CHOICE { | |||
718 | ipAddress-value IpAddress, | |||
719 | counter-value Counter32, | |||
720 | timeticks-value TimeTicks, | |||
721 | arbitrary-value Opaque, | |||
722 | big-counter-value Counter64, | |||
723 | unsigned-integer-value Unsigned32 | |||
724 | } | |||
725 | ||||
726 | ValueType ::= CHOICE { | |||
727 | value ObjectSyntax, | |||
728 | unSpecified NULL, | |||
729 | noSuchObject[0] IMPLICIT NULL, | |||
730 | noSuchInstance[1] IMPLICIT NULL, | |||
731 | endOfMibView[2] IMPLICIT NULL | |||
732 | } | |||
733 | ||||
734 | VarBind ::= SEQUENCE { | |||
735 | name ObjectName, | |||
736 | valueType ValueType | |||
737 | } | |||
738 | ||||
739 | */ | |||
740 | ||||
741 | static int | |||
742 | dissect_snmp_VarBind(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb, int offset, | |||
743 | asn1_ctx_t *actx, proto_tree *tree, int hf_index _U___attribute__((unused))) | |||
744 | { | |||
745 | int seq_offset, name_offset, value_offset, value_start; | |||
746 | uint32_t seq_len, name_len, value_len; | |||
747 | int8_t ber_class; | |||
748 | bool_Bool pc; | |||
749 | int32_t tag; | |||
750 | bool_Bool ind; | |||
751 | uint32_t* subids; | |||
752 | uint8_t* oid_bytes; | |||
753 | oid_info_t* oid_info = NULL((void*)0); | |||
754 | unsigned oid_matched, oid_left; | |||
755 | proto_item *pi_name, *pi_varbind, *pi_value = NULL((void*)0); | |||
756 | proto_tree *pt, *pt_varbind, *pt_name, *pt_value; | |||
757 | char label[ITEM_LABEL_LENGTH240]; | |||
758 | const char* repr = NULL((void*)0); | |||
759 | const char* info_oid = NULL((void*)0); | |||
760 | char* valstr; | |||
761 | int hfid = -1; | |||
762 | int min_len = 0, max_len = 0; | |||
763 | bool_Bool oid_info_is_ok; | |||
764 | const char* oid_string = NULL((void*)0); | |||
765 | enum {BER_NO_ERROR, BER_WRONG_LENGTH, BER_WRONG_TAG} format_error = BER_NO_ERROR; | |||
766 | ||||
767 | seq_offset = offset; | |||
768 | ||||
769 | /* first have the VarBind's sequence header */ | |||
770 | offset = dissect_ber_identifier(actx->pinfo, tree, tvb, offset, &ber_class, &pc, &tag); | |||
771 | offset = dissect_ber_length(actx->pinfo, tree, tvb, offset, &seq_len, &ind); | |||
772 | ||||
773 | if (!pc && ber_class==BER_CLASS_UNI0 && tag==BER_UNI_TAG_SEQUENCE16) { | |||
774 | proto_item* pi; | |||
775 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len + (offset - seq_offset), | |||
776 | ett_decoding_error, &pi, "VarBind must be an universal class sequence"); | |||
777 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_not_uni_class_seq); | |||
778 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
779 | } | |||
780 | ||||
781 | if (ind) { | |||
782 | proto_item* pi; | |||
783 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len + (offset - seq_offset), | |||
784 | ett_decoding_error, &pi, "Indicator must be clear in VarBind"); | |||
785 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_has_indicator); | |||
786 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
787 | } | |||
788 | ||||
789 | /* we add the varbind tree root with a dummy label we'll fill later on */ | |||
790 | pt_varbind = proto_tree_add_subtree(tree,tvb,offset,seq_len,ett_varbind,&pi_varbind,"VarBind"); | |||
791 | *label = '\0'; | |||
792 | ||||
793 | seq_len += offset - seq_offset; | |||
794 | ||||
795 | /* then we have the ObjectName's header */ | |||
796 | ||||
797 | offset = dissect_ber_identifier(actx->pinfo, pt_varbind, tvb, offset, &ber_class, &pc, &tag); | |||
798 | name_offset = offset = dissect_ber_length(actx->pinfo, pt_varbind, tvb, offset, &name_len, &ind); | |||
799 | ||||
800 | if (! ( !pc && ber_class==BER_CLASS_UNI0 && tag==BER_UNI_TAG_OID6) ) { | |||
801 | proto_item* pi; | |||
802 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len, | |||
803 | ett_decoding_error, &pi, "ObjectName must be an OID in primitive encoding"); | |||
804 | expert_add_info(actx->pinfo, pi, &ei_snmp_objectname_not_oid); | |||
805 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
806 | } | |||
807 | ||||
808 | if (ind) { | |||
809 | proto_item* pi; | |||
810 | pt = proto_tree_add_subtree(tree, tvb, seq_offset, seq_len, | |||
811 | ett_decoding_error, &pi, "Indicator must be clear in ObjectName"); | |||
812 | expert_add_info(actx->pinfo, pi, &ei_snmp_objectname_has_indicator); | |||
813 | return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt); | |||
814 | } | |||
815 | ||||
816 | pi_name = proto_tree_add_item(pt_varbind,hf_snmp_objectname,tvb,name_offset,name_len,ENC_NA0x00000000); | |||
817 | pt_name = proto_item_add_subtree(pi_name,ett_name); | |||
818 | ||||
819 | offset += name_len; | |||
820 | value_start = offset; | |||
821 | /* then we have the value's header */ | |||
822 | offset = dissect_ber_identifier(actx->pinfo, pt_varbind, tvb, offset, &ber_class, &pc, &tag); | |||
823 | value_offset = dissect_ber_length(actx->pinfo, pt_varbind, tvb, offset, &value_len, &ind); | |||
824 | ||||
825 | if (! (!pc) ) { | |||
826 | proto_item* pi; | |||
827 | pt = proto_tree_add_subtree(pt_varbind, tvb, value_start, value_len, | |||
828 | ett_decoding_error, &pi, "the value must be in primitive encoding"); | |||
829 | expert_add_info(actx->pinfo, pi, &ei_snmp_value_not_primitive_encoding); | |||
830 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
831 | } | |||
832 | ||||
833 | /* Now, we know where everything is */ | |||
834 | ||||
835 | /* fetch ObjectName and its relative oid_info */ | |||
836 | oid_bytes = (uint8_t*)tvb_memdup(actx->pinfo->pool, tvb, name_offset, name_len); | |||
837 | oid_info = oid_get_from_encoded(actx->pinfo->pool, oid_bytes, name_len, &subids, &oid_matched, &oid_left); | |||
838 | ||||
839 | add_oid_debug_subtree(oid_info,pt_name)((void)0); | |||
840 | ||||
841 | if (!subids) { | |||
842 | proto_item* pi; | |||
843 | ||||
844 | repr = oid_encoded2string(actx->pinfo->pool, oid_bytes, name_len); | |||
845 | pt = proto_tree_add_subtree_format(pt_name,tvb, 0, 0, ett_decoding_error, &pi, "invalid oid: %s", repr); | |||
846 | expert_add_info_format(actx->pinfo, pi, &ei_snmp_invalid_oid, "invalid oid: %s", repr); | |||
847 | return dissect_unknown_ber(actx->pinfo, tvb, name_offset, pt); | |||
848 | } | |||
849 | ||||
850 | if (oid_matched+oid_left) { | |||
851 | oid_string = oid_subid2string(actx->pinfo->pool, subids,oid_matched+oid_left); | |||
852 | } | |||
853 | ||||
854 | if (ber_class == BER_CLASS_CON2) { | |||
855 | /* if we have an error value just add it and get out the way ASAP */ | |||
856 | proto_item* pi; | |||
857 | const char* note; | |||
858 | ||||
859 | if (value_len != 0) { | |||
860 | min_len = max_len = 0; | |||
861 | format_error = BER_WRONG_LENGTH; | |||
862 | } | |||
863 | ||||
864 | switch (tag) { | |||
865 | case SERR_NSO0: | |||
866 | hfid = hf_snmp_noSuchObject; | |||
867 | note = "noSuchObject"; | |||
868 | break; | |||
869 | case SERR_NSI1: | |||
870 | hfid = hf_snmp_noSuchInstance; | |||
871 | note = "noSuchInstance"; | |||
872 | break; | |||
873 | case SERR_EOM2: | |||
874 | hfid = hf_snmp_endOfMibView; | |||
875 | note = "endOfMibView"; | |||
876 | break; | |||
877 | default: { | |||
878 | pt = proto_tree_add_subtree_format(pt_varbind,tvb,0,0,ett_decoding_error,&pi, | |||
879 | "Wrong tag for Error Value: expected 0, 1, or 2 but got: %d",tag); | |||
880 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_tag); | |||
881 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
882 | } | |||
883 | } | |||
884 | ||||
885 | pi = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
886 | expert_add_info_format(actx->pinfo, pi, &ei_snmp_varbind_response, "%s",note); | |||
887 | (void) g_strlcpy (label, note, ITEM_LABEL_LENGTH240); | |||
888 | goto set_label; | |||
889 | } | |||
890 | ||||
891 | /* 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 */ | |||
892 | switch (oid_info->kind) { | |||
893 | case OID_KIND_SCALAR: | |||
894 | if (oid_left == 1) { | |||
895 | /* OK: we got the instance sub-id */ | |||
896 | proto_tree_add_uint64(pt_name,hf_snmp_scalar_instance_index,tvb,name_offset,name_len,subids[oid_matched]); | |||
897 | oid_info_is_ok = true1; | |||
898 | goto indexing_done; | |||
899 | } else if (oid_left == 0) { | |||
900 | if (ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
901 | /* unSpecified does not require an instance sub-id add the new value and get off the way! */ | |||
902 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
903 | goto set_label; | |||
904 | } else { | |||
905 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_no_instance_subid,tvb,0,0); | |||
906 | oid_info_is_ok = false0; | |||
907 | goto indexing_done; | |||
908 | } | |||
909 | } else { | |||
910 | 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); | |||
911 | oid_info_is_ok = false0; | |||
912 | goto indexing_done; | |||
913 | } | |||
914 | break; | |||
915 | case OID_KIND_COLUMN: | |||
916 | if ( oid_info->parent->kind == OID_KIND_ROW) { | |||
917 | oid_key_t* k = oid_info->parent->key; | |||
918 | unsigned key_start = oid_matched; | |||
919 | unsigned key_len = oid_left; | |||
920 | oid_info_is_ok = true1; | |||
921 | ||||
922 | if ( key_len == 0 && ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
923 | /* unSpecified does not require an instance sub-id add the new value and get off the way! */ | |||
924 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
925 | goto set_label; | |||
926 | } | |||
927 | ||||
928 | if (k) { | |||
929 | for (;k;k = k->next) { | |||
930 | unsigned suboid_len; | |||
931 | ||||
932 | if (key_start >= oid_matched+oid_left) { | |||
933 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_too_short,tvb,0,0); | |||
934 | oid_info_is_ok = false0; | |||
935 | goto indexing_done; | |||
936 | } | |||
937 | ||||
938 | switch(k->key_type) { | |||
939 | case OID_KEY_TYPE_WRONG: { | |||
940 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_unimplemented_instance_index,tvb,0,0); | |||
941 | oid_info_is_ok = false0; | |||
942 | goto indexing_done; | |||
943 | } | |||
944 | case OID_KEY_TYPE_INTEGER: { | |||
945 | 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))) { | |||
946 | proto_tree_add_int(pt_name,k->hfid,tvb,name_offset,name_len,(unsigned)subids[key_start]); | |||
947 | } else { /* if it's not an unsigned int let proto_tree_add_uint throw a warning */ | |||
948 | proto_tree_add_uint64(pt_name,k->hfid,tvb,name_offset,name_len,(unsigned)subids[key_start]); | |||
949 | } | |||
950 | key_start++; | |||
951 | key_len--; | |||
952 | continue; /* k->next */ | |||
953 | } | |||
954 | case OID_KEY_TYPE_IMPLIED_OID: | |||
955 | suboid_len = key_len; | |||
956 | ||||
957 | goto show_oid_index; | |||
958 | ||||
959 | case OID_KEY_TYPE_OID: { | |||
960 | uint8_t* suboid_buf; | |||
961 | unsigned suboid_buf_len; | |||
962 | uint32_t* suboid; | |||
963 | ||||
964 | suboid_len = subids[key_start++]; | |||
965 | key_len--; | |||
966 | ||||
967 | show_oid_index: | |||
968 | suboid = &(subids[key_start]); | |||
969 | ||||
970 | if( suboid_len == 0 ) { | |||
971 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_len0,tvb,0,0); | |||
972 | oid_info_is_ok = false0; | |||
973 | goto indexing_done; | |||
974 | } | |||
975 | ||||
976 | if( key_len < suboid_len ) { | |||
977 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_suboid_too_long,tvb,0,0); | |||
978 | oid_info_is_ok = false0; | |||
979 | goto indexing_done; | |||
980 | } | |||
981 | ||||
982 | suboid_buf_len = oid_subid2encoded(actx->pinfo->pool, suboid_len, suboid, &suboid_buf); | |||
983 | ||||
984 | 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" , 984, "suboid_buf_len")))); | |||
985 | ||||
986 | proto_tree_add_oid(pt_name,k->hfid,tvb,name_offset, suboid_buf_len, suboid_buf); | |||
987 | ||||
988 | key_start += suboid_len; | |||
989 | key_len -= suboid_len + 1; | |||
990 | continue; /* k->next */ | |||
991 | } | |||
992 | default: { | |||
993 | uint8_t* buf; | |||
994 | unsigned buf_len; | |||
995 | uint32_t* suboid; | |||
996 | unsigned i; | |||
997 | ||||
998 | ||||
999 | switch (k->key_type) { | |||
1000 | case OID_KEY_TYPE_IPADDR: | |||
1001 | suboid = &(subids[key_start]); | |||
1002 | buf_len = 4; | |||
1003 | break; | |||
1004 | case OID_KEY_TYPE_IMPLIED_STRING: | |||
1005 | case OID_KEY_TYPE_IMPLIED_BYTES: | |||
1006 | case OID_KEY_TYPE_ETHER: | |||
1007 | suboid = &(subids[key_start]); | |||
1008 | buf_len = key_len; | |||
1009 | break; | |||
1010 | default: | |||
1011 | buf_len = k->num_subids; | |||
1012 | suboid = &(subids[key_start]); | |||
1013 | ||||
1014 | if(!buf_len) { | |||
1015 | buf_len = *suboid++; | |||
1016 | key_len--; | |||
1017 | key_start++; | |||
1018 | } | |||
1019 | break; | |||
1020 | } | |||
1021 | ||||
1022 | if( key_len < buf_len ) { | |||
1023 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_index_string_too_long,tvb,0,0); | |||
1024 | oid_info_is_ok = false0; | |||
1025 | goto indexing_done; | |||
1026 | } | |||
1027 | ||||
1028 | buf = (uint8_t*)wmem_alloc(actx->pinfo->pool, buf_len+1); | |||
1029 | for (i = 0; i < buf_len; i++) | |||
1030 | buf[i] = (uint8_t)suboid[i]; | |||
1031 | buf[i] = '\0'; | |||
1032 | ||||
1033 | switch(k->key_type) { | |||
1034 | case OID_KEY_TYPE_STRING: | |||
1035 | case OID_KEY_TYPE_IMPLIED_STRING: | |||
1036 | proto_tree_add_string(pt_name,k->hfid,tvb,name_offset,buf_len, buf); | |||
1037 | break; | |||
1038 | case OID_KEY_TYPE_BYTES: | |||
1039 | case OID_KEY_TYPE_NSAP: | |||
1040 | case OID_KEY_TYPE_IMPLIED_BYTES: | |||
1041 | proto_tree_add_bytes(pt_name,k->hfid,tvb,name_offset,buf_len, buf); | |||
1042 | break; | |||
1043 | case OID_KEY_TYPE_ETHER: | |||
1044 | proto_tree_add_ether(pt_name,k->hfid,tvb,name_offset,buf_len, buf); | |||
1045 | break; | |||
1046 | case OID_KEY_TYPE_IPADDR: { | |||
1047 | uint32_t* ipv4_p = (uint32_t*)buf; | |||
1048 | proto_tree_add_ipv4(pt_name,k->hfid,tvb,name_offset,buf_len, *ipv4_p); | |||
1049 | } | |||
1050 | break; | |||
1051 | default: | |||
1052 | DISSECTOR_ASSERT_NOT_REACHED()(proto_report_dissector_bug("%s:%u: failed assertion \"DISSECTOR_ASSERT_NOT_REACHED\"" , "epan/dissectors/packet-snmp.c", 1052)); | |||
1053 | break; | |||
1054 | } | |||
1055 | ||||
1056 | key_start += buf_len; | |||
1057 | key_len -= buf_len; | |||
1058 | continue; /* k->next*/ | |||
1059 | } | |||
1060 | } | |||
1061 | } | |||
1062 | goto indexing_done; | |||
1063 | } else { | |||
1064 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_unimplemented_instance_index,tvb,0,0); | |||
1065 | oid_info_is_ok = false0; | |||
1066 | goto indexing_done; | |||
1067 | } | |||
1068 | } else { | |||
1069 | proto_tree_add_expert(pt_name,actx->pinfo,&ei_snmp_column_parent_not_row,tvb,0,0); | |||
1070 | oid_info_is_ok = false0; | |||
1071 | goto indexing_done; | |||
1072 | } | |||
1073 | default: { | |||
1074 | /* proto_tree_add_expert (pt_name,actx->pinfo,PI_MALFORMED, PI_WARN,tvb,0,0,"This kind OID should have no value"); */ | |||
1075 | oid_info_is_ok = false0; | |||
1076 | goto indexing_done; | |||
1077 | } | |||
1078 | } | |||
1079 | indexing_done: | |||
1080 | ||||
1081 | if (oid_info_is_ok && oid_info->value_type) { | |||
1082 | if (ber_class == BER_CLASS_UNI0 && tag == BER_UNI_TAG_NULL5) { | |||
1083 | pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,ENC_NA0x00000000); | |||
1084 | } else { | |||
1085 | /* Provide a tree_item to attach errors to, if needed. */ | |||
1086 | pi_value = pi_name; | |||
1087 | ||||
1088 | if ((oid_info->value_type->ber_class != BER_CLASS_ANY99) && | |||
1089 | (ber_class != oid_info->value_type->ber_class)) | |||
1090 | format_error = BER_WRONG_TAG; | |||
1091 | else if ((oid_info->value_type->ber_tag != BER_TAG_ANY-1) && | |||
1092 | (tag != oid_info->value_type->ber_tag)) | |||
1093 | format_error = BER_WRONG_TAG; | |||
1094 | else { | |||
1095 | max_len = oid_info->value_type->max_len == -1 ? 0xffffff : oid_info->value_type->max_len; | |||
1096 | min_len = oid_info->value_type->min_len; | |||
1097 | ||||
1098 | if ((int)value_len < min_len || (int)value_len > max_len) | |||
1099 | format_error = BER_WRONG_LENGTH; | |||
1100 | } | |||
1101 | ||||
1102 | if (format_error == BER_NO_ERROR) { | |||
1103 | /* Special case DATE AND TIME */ | |||
1104 | if((oid_info->value_type)&&(oid_info->value_type->keytype == OID_KEY_TYPE_DATE_AND_TIME)&&(value_len > 7)){ | |||
1105 | pi_value = dissect_snmp_variable_date_and_time(pt_varbind, actx->pinfo, oid_info->value_hfid, tvb, value_offset, value_len); | |||
1106 | } else { | |||
1107 | pi_value = proto_tree_add_item(pt_varbind,oid_info->value_hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
1108 | } | |||
1109 | } | |||
1110 | } | |||
1111 | } else { | |||
1112 | switch(ber_class|(tag<<4)) { | |||
1113 | case BER_CLASS_UNI0|(BER_UNI_TAG_INTEGER2<<4): | |||
1114 | { | |||
1115 | int64_t val=0; | |||
1116 | unsigned int int_val_offset = value_offset; | |||
1117 | unsigned int i; | |||
1118 | ||||
1119 | max_len = 4; min_len = 1; | |||
1120 | if (value_len > (unsigned)max_len || value_len < (unsigned)min_len) { | |||
1121 | hfid = hf_snmp_integer32_value; | |||
1122 | format_error = BER_WRONG_LENGTH; | |||
1123 | break; | |||
1124 | } | |||
1125 | ||||
1126 | if(value_len > 0) { | |||
1127 | /* extend sign bit */ | |||
1128 | if(tvb_get_uint8(tvb, int_val_offset)&0x80) { | |||
1129 | val=-1; | |||
1130 | } | |||
1131 | for(i=0;i<value_len;i++) { | |||
1132 | val=(val<<8)|tvb_get_uint8(tvb, int_val_offset); | |||
1133 | int_val_offset++; | |||
1134 | } | |||
1135 | } | |||
1136 | pi_value = proto_tree_add_int64(pt_varbind, hf_snmp_integer32_value, tvb,value_offset,value_len, val); | |||
1137 | ||||
1138 | goto already_added; | |||
1139 | } | |||
1140 | case BER_CLASS_UNI0|(BER_UNI_TAG_OCTETSTRING4<<4): | |||
1141 | if(oid_info->value_hfid> -1){ | |||
1142 | hfid = oid_info->value_hfid; | |||
1143 | }else{ | |||
1144 | hfid = hf_snmp_octetstring_value; | |||
1145 | } | |||
1146 | break; | |||
1147 | case BER_CLASS_UNI0|(BER_UNI_TAG_OID6<<4): | |||
1148 | max_len = -1; min_len = 1; | |||
1149 | if (value_len < (unsigned)min_len) format_error = BER_WRONG_LENGTH; | |||
1150 | hfid = hf_snmp_oid_value; | |||
1151 | break; | |||
1152 | case BER_CLASS_UNI0|(BER_UNI_TAG_NULL5<<4): | |||
1153 | max_len = 0; min_len = 0; | |||
1154 | if (value_len != 0) format_error = BER_WRONG_LENGTH; | |||
1155 | hfid = hf_snmp_null_value; | |||
1156 | break; | |||
1157 | case BER_CLASS_APP1: /* | (SNMP_IPA<<4)*/ | |||
1158 | switch(value_len) { | |||
1159 | case 4: hfid = hf_snmp_ipv4_value; break; | |||
1160 | case 16: hfid = hf_snmp_ipv6_value; break; | |||
1161 | default: hfid = hf_snmp_anyaddress_value; break; | |||
1162 | } | |||
1163 | break; | |||
1164 | case BER_CLASS_APP1|(SNMP_U327<<4): | |||
1165 | hfid = hf_snmp_unsigned32_value; | |||
1166 | break; | |||
1167 | case BER_CLASS_APP1|(SNMP_GGE2<<4): | |||
1168 | hfid = hf_snmp_gauge32_value; | |||
1169 | break; | |||
1170 | case BER_CLASS_APP1|(SNMP_CNT1<<4): | |||
1171 | hfid = hf_snmp_counter_value; | |||
1172 | break; | |||
1173 | case BER_CLASS_APP1|(SNMP_TIT3<<4): | |||
1174 | hfid = hf_snmp_timeticks_value; | |||
1175 | break; | |||
1176 | case BER_CLASS_APP1|(SNMP_OPQ4<<4): | |||
1177 | hfid = hf_snmp_opaque_value; | |||
1178 | break; | |||
1179 | case BER_CLASS_APP1|(SNMP_NSP5<<4): | |||
1180 | hfid = hf_snmp_nsap_value; | |||
1181 | break; | |||
1182 | case BER_CLASS_APP1|(SNMP_C646<<4): | |||
1183 | hfid = hf_snmp_big_counter_value; | |||
1184 | break; | |||
1185 | default: | |||
1186 | hfid = hf_snmp_unknown_value; | |||
1187 | break; | |||
1188 | } | |||
1189 | if (value_len > 8) { | |||
1190 | /* | |||
1191 | * Too long for an FT_UINT64 or an FT_INT64. | |||
1192 | */ | |||
1193 | header_field_info *hfinfo = proto_registrar_get_nth(hfid); | |||
1194 | if (hfinfo->type == FT_UINT64) { | |||
1195 | /* | |||
1196 | * Check if this is an unsigned int64 with | |||
1197 | * a big value. | |||
1198 | */ | |||
1199 | if (value_len > 9 || tvb_get_uint8(tvb, value_offset) != 0) { | |||
1200 | /* It is. Fail. */ | |||
1201 | proto_tree_add_expert_format(pt_varbind,actx->pinfo,&ei_snmp_uint_too_large,tvb,value_offset,value_len,"Integral value too large"); | |||
1202 | goto already_added; | |||
1203 | } | |||
1204 | /* Cheat and skip the leading 0 byte */ | |||
1205 | value_len--; | |||
1206 | value_offset++; | |||
1207 | } else if (hfinfo->type == FT_INT64) { | |||
1208 | /* | |||
1209 | * For now, just reject these. | |||
1210 | */ | |||
1211 | 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"); | |||
1212 | goto already_added; | |||
1213 | } | |||
1214 | } else if (value_len == 0) { | |||
1215 | /* | |||
1216 | * X.690 section 8.3.1 "Encoding of an integer value": | |||
1217 | * "The encoding of an integer value shall be | |||
1218 | * primitive. The contents octets shall consist of | |||
1219 | * one or more octets." | |||
1220 | * | |||
1221 | * Zero is not "one or more". | |||
1222 | */ | |||
1223 | header_field_info *hfinfo = proto_registrar_get_nth(hfid); | |||
1224 | if (hfinfo->type == FT_UINT64 || hfinfo->type == FT_INT64) { | |||
1225 | proto_tree_add_expert_format(pt_varbind,actx->pinfo,&ei_snmp_integral_value0,tvb,value_offset,value_len,"Integral value is zero-length"); | |||
1226 | goto already_added; | |||
1227 | } | |||
1228 | } | |||
1229 | /* Special case DATE AND TIME */ | |||
1230 | if((oid_info->value_type)&&(oid_info->value_type->keytype == OID_KEY_TYPE_DATE_AND_TIME)&&(value_len > 7)){ | |||
1231 | pi_value = dissect_snmp_variable_date_and_time(pt_varbind, actx->pinfo, hfid, tvb, value_offset, value_len); | |||
1232 | }else{ | |||
1233 | pi_value = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,ENC_BIG_ENDIAN0x00000000); | |||
1234 | } | |||
1235 | if (format_error != BER_NO_ERROR) { | |||
1236 | expert_add_info(actx->pinfo, pi_value, &ei_snmp_missing_mib); | |||
1237 | } | |||
1238 | ||||
1239 | } | |||
1240 | already_added: | |||
1241 | pt_value = proto_item_add_subtree(pi_value,ett_value); | |||
1242 | ||||
1243 | if (value_len > 0 && oid_string) { | |||
1244 | tvbuff_t* sub_tvb = tvb_new_subset_length(tvb, value_offset, value_len); | |||
1245 | ||||
1246 | next_tvb_add_string(var_list, sub_tvb, (snmp_var_in_tree) ? pt_value : NULL((void*)0), value_sub_dissectors_table, oid_string); | |||
1247 | } | |||
1248 | ||||
1249 | ||||
1250 | set_label: | |||
1251 | if (pi_value) proto_item_fill_label(PITEM_FINFO(pi_value)((pi_value)->finfo), label, NULL((void*)0)); | |||
1252 | ||||
1253 | if (oid_info && oid_info->name) { | |||
1254 | if (oid_left >= 1) { | |||
1255 | repr = wmem_strdup_printf(actx->pinfo->pool, "%s.%s (%s)", oid_info->name, | |||
1256 | oid_subid2string(actx->pinfo->pool, &(subids[oid_matched]),oid_left), | |||
1257 | oid_subid2string(actx->pinfo->pool, subids,oid_matched+oid_left)); | |||
1258 | info_oid = wmem_strdup_printf(actx->pinfo->pool, "%s.%s", oid_info->name, | |||
1259 | oid_subid2string(actx->pinfo->pool, &(subids[oid_matched]),oid_left)); | |||
1260 | } else { | |||
1261 | repr = wmem_strdup_printf(actx->pinfo->pool, "%s (%s)", oid_info->name, | |||
1262 | oid_subid2string(actx->pinfo->pool, subids,oid_matched)); | |||
1263 | info_oid = oid_info->name; | |||
1264 | } | |||
1265 | } else if (oid_string) { | |||
1266 | repr = wmem_strdup(actx->pinfo->pool, oid_string); | |||
1267 | info_oid = oid_string; | |||
1268 | } else { | |||
1269 | repr = wmem_strdup(actx->pinfo->pool, "[Bad OID]"); | |||
1270 | } | |||
1271 | ||||
1272 | valstr = strstr(label,": "); | |||
1273 | valstr = valstr ? valstr+2 : label; | |||
1274 | ||||
1275 | proto_item_set_text(pi_varbind,"%s: %s",repr,valstr); | |||
1276 | ||||
1277 | if (display_oid && info_oid) { | |||
1278 | col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", info_oid); | |||
1279 | } | |||
1280 | ||||
1281 | switch (format_error) { | |||
1282 | case BER_WRONG_LENGTH: { | |||
1283 | proto_item* pi; | |||
1284 | proto_tree* p_tree = proto_item_add_subtree(pi_value,ett_decoding_error); | |||
1285 | pt = proto_tree_add_subtree_format(p_tree,tvb,0,0,ett_decoding_error,&pi, | |||
1286 | "Wrong value length: %u expecting: %u <= len <= %u", | |||
1287 | value_len, min_len, max_len == -1 ? 0xFFFFFF : max_len); | |||
1288 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_length_value); | |||
1289 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
1290 | } | |||
1291 | case BER_WRONG_TAG: { | |||
1292 | proto_item* pi; | |||
1293 | proto_tree* p_tree = proto_item_add_subtree(pi_value,ett_decoding_error); | |||
1294 | pt = proto_tree_add_subtree_format(p_tree,tvb,0,0,ett_decoding_error,&pi, | |||
1295 | "Wrong class/tag for Value expected: %d,%d got: %d,%d", | |||
1296 | oid_info->value_type->ber_class, oid_info->value_type->ber_tag, | |||
1297 | ber_class, tag); | |||
1298 | expert_add_info(actx->pinfo, pi, &ei_snmp_varbind_wrong_class_tag); | |||
1299 | return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt); | |||
1300 | } | |||
1301 | default: | |||
1302 | break; | |||
1303 | } | |||
1304 | ||||
1305 | return seq_offset + seq_len; | |||
1306 | } | |||
1307 | ||||
1308 | ||||
1309 | #define F_SNMP_ENGINEID_CONFORM0x80 0x80 | |||
1310 | #define SNMP_ENGINEID_RFC19100x00 0x00 | |||
1311 | #define SNMP_ENGINEID_RFC34110x01 0x01 | |||
1312 | ||||
1313 | static const true_false_string tfs_snmp_engineid_conform = { | |||
1314 | "RFC3411 (SNMPv3)", | |||
1315 | "RFC1910 (Non-SNMPv3)" | |||
1316 | }; | |||
1317 | ||||
1318 | #define SNMP_ENGINEID_FORMAT_IPV40x01 0x01 | |||
1319 | #define SNMP_ENGINEID_FORMAT_IPV60x02 0x02 | |||
1320 | #define SNMP_ENGINEID_FORMAT_MACADDRESS0x03 0x03 | |||
1321 | #define SNMP_ENGINEID_FORMAT_TEXT0x04 0x04 | |||
1322 | #define SNMP_ENGINEID_FORMAT_OCTETS0x05 0x05 | |||
1323 | #define SNMP_ENGINEID_FORMAT_LOCAL0x06 0x06 | |||
1324 | ||||
1325 | static const value_string snmp_engineid_format_vals[] = { | |||
1326 | { SNMP_ENGINEID_FORMAT_IPV40x01, "IPv4 address" }, | |||
1327 | { SNMP_ENGINEID_FORMAT_IPV60x02, "IPv6 address" }, | |||
1328 | { SNMP_ENGINEID_FORMAT_MACADDRESS0x03, "MAC address" }, | |||
1329 | { SNMP_ENGINEID_FORMAT_TEXT0x04, "Text, administratively assigned" }, | |||
1330 | { SNMP_ENGINEID_FORMAT_OCTETS0x05, "Octets, administratively assigned" }, | |||
1331 | { SNMP_ENGINEID_FORMAT_LOCAL0x06, "Local engine" }, | |||
1332 | { 0, NULL((void*)0) } | |||
1333 | }; | |||
1334 | ||||
1335 | #define SNMP_ENGINEID_CISCO_AGENT0x00 0x00 | |||
1336 | #define SNMP_ENGINEID_CISCO_MANAGER0x01 0x01 | |||
1337 | ||||
1338 | static const value_string snmp_engineid_cisco_type_vals[] = { | |||
1339 | { SNMP_ENGINEID_CISCO_AGENT0x00, "Agent" }, | |||
1340 | { SNMP_ENGINEID_CISCO_MANAGER0x01, "Manager" }, | |||
1341 | { 0, NULL((void*)0) } | |||
1342 | }; | |||
1343 | ||||
1344 | /* | |||
1345 | * SNMP Engine ID dissection according to RFC 3411 (SnmpEngineID TC) | |||
1346 | * or historic RFC 1910 (AgentID) | |||
1347 | */ | |||
1348 | int | |||
1349 | dissect_snmp_engineid(proto_tree *tree, packet_info *pinfo, tvbuff_t *tvb, int offset, int len) | |||
1350 | { | |||
1351 | proto_item *item = NULL((void*)0); | |||
1352 | uint8_t conformance, format; | |||
1353 | uint32_t enterpriseid; | |||
1354 | time_t seconds; | |||
1355 | nstime_t ts; | |||
1356 | int len_remain = len; | |||
1357 | ||||
1358 | /* first bit: engine id conformance */ | |||
1359 | if (len_remain<1) return offset; | |||
1360 | conformance = ((tvb_get_uint8(tvb, offset)>>7) & 0x01); | |||
1361 | proto_tree_add_item(tree, hf_snmp_engineid_conform, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000); | |||
1362 | ||||
1363 | /* 4-byte enterprise number/name */ | |||
1364 | if (len_remain<4) return offset; | |||
1365 | enterpriseid = tvb_get_ntohl(tvb, offset); | |||
1366 | if (conformance) | |||
1367 | enterpriseid -= 0x80000000; /* ignore first bit */ | |||
1368 | proto_tree_add_uint(tree, hf_snmp_engineid_enterprise, tvb, offset, 4, enterpriseid); | |||
1369 | offset+=4; | |||
1370 | len_remain-=4; | |||
1371 | ||||
1372 | switch(conformance) { | |||
1373 | ||||
1374 | case SNMP_ENGINEID_RFC19100x00: | |||
1375 | /* 12-byte AgentID w/ 8-byte trailer */ | |||
1376 | if (len_remain==8) { | |||
1377 | proto_tree_add_item(tree, hf_snmp_agentid_trailer, tvb, offset, 8, ENC_NA0x00000000); | |||
1378 | offset+=8; | |||
1379 | len_remain-=8; | |||
1380 | } else { | |||
1381 | proto_tree_add_expert(tree, pinfo, &ei_snmp_rfc1910_non_conformant, tvb, offset, len_remain); | |||
1382 | return offset; | |||
1383 | } | |||
1384 | break; | |||
1385 | ||||
1386 | case SNMP_ENGINEID_RFC34110x01: /* variable length: 5..32 */ | |||
1387 | ||||
1388 | /* 1-byte format specifier */ | |||
1389 | if (len_remain<1) return offset; | |||
1390 | format = tvb_get_uint8(tvb, offset); | |||
1391 | item = proto_tree_add_uint_format(tree, hf_snmp_engineid_format, tvb, offset, 1, format, "Engine ID Format: %s (%d)", | |||
1392 | val_to_str_const(format, snmp_engineid_format_vals, "Reserved/Enterprise-specific"), | |||
1393 | format); | |||
1394 | offset+=1; | |||
1395 | len_remain-=1; | |||
1396 | ||||
1397 | switch(format) { | |||
1398 | case SNMP_ENGINEID_FORMAT_IPV40x01: | |||
1399 | /* 4-byte IPv4 address */ | |||
1400 | if (len_remain==4) { | |||
1401 | proto_tree_add_item(tree, hf_snmp_engineid_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN0x00000000); | |||
1402 | offset+=4; | |||
1403 | len_remain=0; | |||
1404 | } | |||
1405 | break; | |||
1406 | case SNMP_ENGINEID_FORMAT_IPV60x02: | |||
1407 | /* 16-byte IPv6 address */ | |||
1408 | if (len_remain==16) { | |||
1409 | proto_tree_add_item(tree, hf_snmp_engineid_ipv6, tvb, offset, 16, ENC_NA0x00000000); | |||
1410 | offset+=16; | |||
1411 | len_remain=0; | |||
1412 | } | |||
1413 | break; | |||
1414 | case SNMP_ENGINEID_FORMAT_MACADDRESS0x03: | |||
1415 | /* See: https://supportforums.cisco.com/message/3010617#3010617 for details. */ | |||
1416 | if ((enterpriseid==9)&&(len_remain==7)) { | |||
1417 | proto_tree_add_item(tree, hf_snmp_engineid_cisco_type, tvb, offset, 1, ENC_BIG_ENDIAN0x00000000); | |||
1418 | offset++; | |||
1419 | len_remain--; | |||
1420 | } | |||
1421 | /* 6-byte MAC address */ | |||
1422 | if (len_remain==6) { | |||
1423 | proto_tree_add_item(tree, hf_snmp_engineid_mac, tvb, offset, 6, ENC_NA0x00000000); | |||
1424 | offset+=6; | |||
1425 | len_remain=0; | |||
1426 | } | |||
1427 | break; | |||
1428 | case SNMP_ENGINEID_FORMAT_TEXT0x04: | |||
1429 | /* max. 27-byte string, administratively assigned */ | |||
1430 | if (len_remain<=27) { | |||
1431 | proto_tree_add_item(tree, hf_snmp_engineid_text, tvb, offset, len_remain, ENC_ASCII0x00000000); | |||
1432 | offset+=len_remain; | |||
1433 | len_remain=0; | |||
1434 | } | |||
1435 | break; | |||
1436 | case SNMP_ENGINEID_FORMAT_LOCAL0x06: | |||
1437 | break; | |||
1438 | case 128: | |||
1439 | /* most common enterprise-specific format: (ucd|net)-snmp random */ | |||
1440 | if ((enterpriseid==2021)||(enterpriseid==8072)) { | |||
1441 | proto_item_append_text(item, (enterpriseid==2021) ? ": UCD-SNMP Random" : ": Net-SNMP Random"); | |||
1442 | /* demystify: 4B random, 4B/8B epoch seconds */ | |||
1443 | if ((len_remain==8) || (len_remain==12)) { | |||
1444 | proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, 4, ENC_NA0x00000000); | |||
1445 | if (len_remain==8) { | |||
1446 | seconds = (time_t)tvb_get_letohl(tvb, offset + 4); | |||
1447 | } else { | |||
1448 | seconds = (time_t)tvb_get_letohi64(tvb, offset + 4); | |||
1449 | } | |||
1450 | ts.secs = seconds; | |||
1451 | ts.nsecs = 0; | |||
1452 | proto_tree_add_time_format_value(tree, hf_snmp_engineid_time, tvb, offset + 4, len_remain - 4, | |||
1453 | &ts, "%s", | |||
1454 | 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)); | |||
1455 | offset+=len_remain; | |||
1456 | len_remain=0; | |||
1457 | } | |||
1458 | break; | |||
1459 | } | |||
1460 | /* fall through */ | |||
1461 | case SNMP_ENGINEID_FORMAT_OCTETS0x05: | |||
1462 | default: | |||
1463 | /* max. 27 bytes, administratively assigned or unknown format */ | |||
1464 | if (len_remain>0 && len_remain<=27) { | |||
1465 | proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, len_remain, ENC_NA0x00000000); | |||
1466 | offset+=len_remain; | |||
1467 | len_remain=0; | |||
1468 | } | |||
1469 | break; | |||
1470 | } | |||
1471 | } | |||
1472 | ||||
1473 | if (len_remain>0) { | |||
1474 | proto_tree_add_expert(tree, pinfo, &ei_snmp_rfc3411_non_conformant, tvb, offset, len_remain); | |||
1475 | offset+=len_remain; | |||
1476 | } | |||
1477 | return offset; | |||
1478 | } | |||
1479 | ||||
1480 | ||||
1481 | static void set_ue_keys(snmp_ue_assoc_t* n ) { | |||
1482 | unsigned const key_size = auth_hash_len[n->user.authModel]; | |||
1483 | ||||
1484 | n->user.authKey.data = (uint8_t *)g_malloc(key_size); | |||
1485 | n->user.authKey.len = key_size; | |||
1486 | snmp_usm_password_to_key(n->user.authModel, | |||
1487 | n->user.authPassword.data, | |||
1488 | n->user.authPassword.len, | |||
1489 | n->engine.data, | |||
1490 | n->engine.len, | |||
1491 | n->user.authKey.data); | |||
1492 | ||||
1493 | if (n->priv_proto == PRIV_AES1281 || n->priv_proto == PRIV_AES1922 || n->priv_proto == PRIV_AES2563) { | |||
1494 | unsigned need_key_len = | |||
1495 | (n->priv_proto
| |||
1496 | (n->priv_proto
| |||
1497 | (n->priv_proto
| |||
1498 | 0; | |||
1499 | ||||
1500 | unsigned key_len = key_size; | |||
1501 | ||||
1502 | while (key_len < need_key_len) | |||
1503 | key_len += key_size; | |||
1504 | ||||
1505 | n->user.privKey.data = (uint8_t *)g_malloc(key_len); | |||
1506 | n->user.privKey.len = need_key_len; | |||
1507 | ||||
1508 | snmp_usm_password_to_key(n->user.authModel, | |||
1509 | n->user.privPassword.data, | |||
1510 | n->user.privPassword.len, | |||
1511 | n->engine.data, | |||
1512 | n->engine.len, | |||
1513 | n->user.privKey.data); | |||
1514 | ||||
1515 | key_len = key_size; | |||
1516 | ||||
1517 | /* extend key if needed */ | |||
1518 | while (key_len
| |||
1519 | switch (n->priv_key_exp) { | |||
1520 | /* Baed on draft-reeder-snmpv3-usm-3desede-00, section 2.1 */ | |||
1521 | case PRIVKEYEXP_USM_3DESDESEDE_000: | |||
1522 | { | |||
1523 | snmp_usm_password_to_key(n->user.authModel, | |||
1524 | n->user.privKey.data + (key_len - key_size), | |||
1525 | key_size, | |||
1526 | n->engine.data, | |||
1527 | n->engine.len, | |||
1528 | n->user.privKey.data + key_len); | |||
1529 | break; | |||
1530 | } | |||
1531 | /* Based on snmp++ method PrivAES::extend_short_key in Agent++ */ | |||
1532 | case PRIVKEYEXP_AGENTPP1: | |||
1533 | { | |||
1534 | /* Key expansion in Agent++ | |||
1535 | * K1 = key | |||
1536 | * K2 = hash(K1) | |||
1537 | * K3 = hash(K1 | K2) | |||
1538 | * localized_key = K1 | K2 | K3 | |||
1539 | */ | |||
1540 | gcry_md_hd_t hash_handle; | |||
1541 | ||||
1542 | if (gcry_md_open(&hash_handle, auth_hash_algo[n->user.authModel], 0)) { | |||
1543 | return; | |||
1544 | } | |||
1545 | ||||
1546 | gcry_md_write(hash_handle, n->user.privKey.data, key_len); | |||
1547 | memcpy(n->user.privKey.data + key_len, gcry_md_read(hash_handle, 0), key_size); | |||
1548 | gcry_md_close(hash_handle); | |||
1549 | ||||
1550 | break; | |||
1551 | } | |||
1552 | ||||
1553 | default: | |||
1554 | break; | |||
1555 | } | |||
1556 | ||||
1557 | key_len += key_size; | |||
1558 | } | |||
1559 | ||||
1560 | } else { | |||
1561 | n->user.privKey.data = (uint8_t *)g_malloc(key_size); | |||
1562 | n->user.privKey.len = key_size; | |||
1563 | snmp_usm_password_to_key(n->user.authModel, | |||
1564 | n->user.privPassword.data, | |||
1565 | n->user.privPassword.len, | |||
1566 | n->engine.data, | |||
1567 | n->engine.len, | |||
1568 | n->user.privKey.data); | |||
1569 | } | |||
1570 | } | |||
1571 | ||||
1572 | static snmp_ue_assoc_t* | |||
1573 | ue_dup(snmp_ue_assoc_t* o) | |||
1574 | { | |||
1575 | snmp_ue_assoc_t* d = (snmp_ue_assoc_t*)g_memdup2(o,sizeof(snmp_ue_assoc_t)); | |||
1576 | ||||
1577 | d->user.authModel = o->user.authModel; | |||
1578 | ||||
1579 | d->user.privProtocol = o->user.privProtocol; | |||
1580 | ||||
1581 | d->user.userName.data = (uint8_t *)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
1582 | d->user.userName.len = o->user.userName.len; | |||
1583 | ||||
1584 | d->user.authPassword.data = o->user.authPassword.data ? (uint8_t *)g_memdup2(o->user.authPassword.data,o->user.authPassword.len) : NULL((void*)0); | |||
1585 | d->user.authPassword.len = o->user.authPassword.len; | |||
1586 | ||||
1587 | d->user.privPassword.data = o->user.privPassword.data ? (uint8_t *)g_memdup2(o->user.privPassword.data,o->user.privPassword.len) : NULL((void*)0); | |||
1588 | d->user.privPassword.len = o->user.privPassword.len; | |||
1589 | ||||
1590 | d->engine.len = o->engine.len; | |||
1591 | ||||
1592 | if (d->engine.len) { | |||
1593 | d->engine.data = (uint8_t *)g_memdup2(o->engine.data,o->engine.len); | |||
1594 | set_ue_keys(d); | |||
1595 | } | |||
1596 | ||||
1597 | return d; | |||
1598 | ||||
1599 | } | |||
1600 | ||||
1601 | static void* | |||
1602 | snmp_users_copy_cb(void* dest, const void* orig, size_t len _U___attribute__((unused))) | |||
1603 | { | |||
1604 | const snmp_ue_assoc_t* o = (const snmp_ue_assoc_t*)orig; | |||
1605 | snmp_ue_assoc_t* d = (snmp_ue_assoc_t*)dest; | |||
1606 | ||||
1607 | d->auth_model = o->auth_model; | |||
1608 | d->user.authModel = (snmp_usm_auth_model_t) o->auth_model; | |||
1609 | ||||
1610 | d->priv_proto = o->priv_proto; | |||
1611 | d->user.privProtocol = priv_protos[o->priv_proto]; | |||
1612 | ||||
1613 | d->user.userName.data = (uint8_t*)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
1614 | d->user.userName.len = o->user.userName.len; | |||
1615 | ||||
1616 | d->user.authPassword.data = o->user.authPassword.data ? (uint8_t*)g_memdup2(o->user.authPassword.data,o->user.authPassword.len) : NULL((void*)0); | |||
1617 | d->user.authPassword.len = o->user.authPassword.len; | |||
1618 | ||||
1619 | d->user.privPassword.data = o->user.privPassword.data ? (uint8_t*)g_memdup2(o->user.privPassword.data,o->user.privPassword.len) : NULL((void*)0); | |||
1620 | d->user.privPassword.len = o->user.privPassword.len; | |||
1621 | ||||
1622 | d->engine.len = o->engine.len; | |||
1623 | if (o->engine.data) { | |||
1624 | d->engine.data = (uint8_t*)g_memdup2(o->engine.data,o->engine.len); | |||
1625 | } | |||
1626 | ||||
1627 | d->user.authKey.data = o->user.authKey.data ? (uint8_t*)g_memdup2(o->user.authKey.data,o->user.authKey.len) : NULL((void*)0); | |||
1628 | d->user.authKey.len = o->user.authKey.len; | |||
1629 | ||||
1630 | d->user.privKey.data = o->user.privKey.data ? (uint8_t*)g_memdup2(o->user.privKey.data,o->user.privKey.len) : NULL((void*)0); | |||
1631 | d->user.privKey.len = o->user.privKey.len; | |||
1632 | ||||
1633 | return d; | |||
1634 | } | |||
1635 | ||||
1636 | static void | |||
1637 | snmp_users_free_cb(void* p) | |||
1638 | { | |||
1639 | snmp_ue_assoc_t* ue = (snmp_ue_assoc_t*)p; | |||
1640 | g_free(ue->user.userName.data); | |||
1641 | g_free(ue->user.authPassword.data); | |||
1642 | g_free(ue->user.privPassword.data); | |||
1643 | g_free(ue->user.authKey.data); | |||
1644 | g_free(ue->user.privKey.data); | |||
1645 | g_free(ue->engine.data); | |||
1646 | } | |||
1647 | ||||
1648 | static bool_Bool | |||
1649 | snmp_users_update_cb(void* p _U___attribute__((unused)), char** err) | |||
1650 | { | |||
1651 | snmp_ue_assoc_t* ue = (snmp_ue_assoc_t*)p; | |||
1652 | GString* es = g_string_new(""); | |||
1653 | unsigned int i; | |||
1654 | ||||
1655 | *err = NULL((void*)0); | |||
1656 | ||||
1657 | if (! ue->user.userName.len) { | |||
1658 | g_string_append_printf(es,"no userName\n"); | |||
1659 | } else if ((ue->engine.len > 0) && (ue->engine.len < 5 || ue->engine.len > 32)) { | |||
1660 | /* RFC 3411 section 5 */ | |||
1661 | g_string_append_printf(es, "Invalid engineId length (%u). Must be between 5 and 32 (10 and 64 hex digits)\n", ue->engine.len); | |||
1662 | } else if (num_ueas) { | |||
1663 | for (i=0; i<num_ueas-1; i++) { | |||
1664 | snmp_ue_assoc_t* u = &(ueas[i]); | |||
1665 | ||||
1666 | if ( u->user.userName.len == ue->user.userName.len | |||
1667 | && u->engine.len == ue->engine.len && (u != ue)) { | |||
1668 | ||||
1669 | if (u->engine.len > 0 && memcmp( u->engine.data, ue->engine.data, u->engine.len ) == 0) { | |||
1670 | if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) { | |||
1671 | /* XXX: make a string for the engineId */ | |||
1672 | g_string_append_printf(es,"Duplicate key (userName='%s')\n",ue->user.userName.data); | |||
1673 | break; | |||
1674 | } | |||
1675 | } | |||
1676 | ||||
1677 | if (u->engine.len == 0) { | |||
1678 | if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) { | |||
1679 | g_string_append_printf(es,"Duplicate key (userName='%s' engineId=NONE)\n",ue->user.userName.data); | |||
1680 | break; | |||
1681 | } | |||
1682 | } | |||
1683 | } | |||
1684 | } | |||
1685 | } | |||
1686 | ||||
1687 | if (es->len) { | |||
1688 | es = g_string_truncate(es,es->len-1)g_string_truncate_inline (es, es->len-1); | |||
1689 | *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)))); | |||
1690 | return false0; | |||
1691 | } | |||
1692 | ||||
1693 | 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))))); | |||
1694 | return true1; | |||
1695 | } | |||
1696 | ||||
1697 | static void | |||
1698 | free_ue_cache(snmp_ue_assoc_t **cache) | |||
1699 | { | |||
1700 | static snmp_ue_assoc_t *a, *nxt; | |||
1701 | ||||
1702 | for (a = *cache; a; a = nxt) { | |||
1703 | nxt = a->next; | |||
1704 | snmp_users_free_cb(a); | |||
1705 | g_free(a); | |||
1706 | } | |||
1707 | ||||
1708 | *cache = NULL((void*)0); | |||
1709 | } | |||
1710 | ||||
1711 | #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); } | |||
1712 | ||||
1713 | static void | |||
1714 | init_ue_cache(void) | |||
1715 | { | |||
1716 | unsigned i; | |||
1717 | ||||
1718 | for (i = 0; i < num_ueas; i++) { | |||
1719 | snmp_ue_assoc_t* a = ue_dup(&(ueas[i])); | |||
1720 | ||||
1721 | if (a->engine.len) { | |||
1722 | 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); }; | |||
1723 | ||||
1724 | } else { | |||
1725 | 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); }; | |||
1726 | } | |||
1727 | ||||
1728 | } | |||
1729 | } | |||
1730 | ||||
1731 | static void | |||
1732 | cleanup_ue_cache(void) | |||
1733 | { | |||
1734 | free_ue_cache(&localized_ues); | |||
1735 | free_ue_cache(&unlocalized_ues); | |||
1736 | } | |||
1737 | ||||
1738 | /* Called when the user applies changes to UAT preferences. */ | |||
1739 | static void | |||
1740 | renew_ue_cache(void) | |||
1741 | { | |||
1742 | cleanup_ue_cache(); | |||
1743 | init_ue_cache(); | |||
1744 | } | |||
1745 | ||||
1746 | ||||
1747 | static snmp_ue_assoc_t* | |||
1748 | localize_ue( snmp_ue_assoc_t* o, const uint8_t* engine, unsigned engine_len ) | |||
1749 | { | |||
1750 | snmp_ue_assoc_t* n = (snmp_ue_assoc_t*)g_memdup2(o,sizeof(snmp_ue_assoc_t)); | |||
1751 | ||||
1752 | n->user.userName.data = (uint8_t*)g_memdup2(o->user.userName.data,o->user.userName.len); | |||
1753 | n->user.authModel = o->user.authModel; | |||
1754 | n->user.authPassword.data = (uint8_t*)g_memdup2(o->user.authPassword.data,o->user.authPassword.len); | |||
1755 | n->user.authPassword.len = o->user.authPassword.len; | |||
1756 | n->user.privPassword.data = (uint8_t*)g_memdup2(o->user.privPassword.data,o->user.privPassword.len); | |||
1757 | n->user.privPassword.len = o->user.privPassword.len; | |||
1758 | n->user.authKey.data = (uint8_t*)g_memdup2(o->user.authKey.data,o->user.authKey.len); | |||
1759 | n->user.privKey.data = (uint8_t*)g_memdup2(o->user.privKey.data,o->user.privKey.len); | |||
1760 | n->engine.data = (uint8_t*)g_memdup2(engine,engine_len); | |||
1761 | n->engine.len = engine_len; | |||
1762 | n->priv_proto = o->priv_proto; | |||
1763 | ||||
1764 | set_ue_keys(n); | |||
1765 | ||||
1766 | return n; | |||
1767 | } | |||
1768 | ||||
1769 | ||||
1770 | #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 ) \ | |||
1771 | ( a->user.userName.len == ul \ | |||
1772 | && a->engine.len == el \ | |||
1773 | && memcmp( a->user.userName.data, u, ul ) == 0 \ | |||
1774 | && memcmp( a->engine.data, e, el ) == 0 ) | |||
1775 | ||||
1776 | #define unlocalized_match(a,u,l)( a->user.userName.len == l && memcmp( a->user. userName.data, u, l) == 0 ) \ | |||
1777 | ( a->user.userName.len == l && memcmp( a->user.userName.data, u, l) == 0 ) | |||
1778 | ||||
1779 | static snmp_ue_assoc_t* | |||
1780 | get_user_assoc(tvbuff_t* engine_tvb, tvbuff_t* user_tvb, packet_info *pinfo) | |||
1781 | { | |||
1782 | static snmp_ue_assoc_t* a; | |||
1783 | unsigned given_username_len; | |||
1784 | uint8_t* given_username; | |||
1785 | unsigned given_engine_len = 0; | |||
1786 | uint8_t* given_engine = NULL((void*)0); | |||
1787 | ||||
1788 | if ( ! (localized_ues || unlocalized_ues ) ) return NULL((void*)0); | |||
1789 | ||||
1790 | if (! ( user_tvb && engine_tvb ) ) return NULL((void*)0); | |||
1791 | ||||
1792 | given_username_len = tvb_captured_length(user_tvb); | |||
1793 | given_engine_len = tvb_captured_length(engine_tvb); | |||
1794 | if (! ( given_engine_len && given_username_len ) ) return NULL((void*)0); | |||
1795 | given_username = (uint8_t*)tvb_memdup(pinfo->pool,user_tvb,0,-1); | |||
1796 | given_engine = (uint8_t*)tvb_memdup(pinfo->pool,engine_tvb,0,-1); | |||
1797 | ||||
1798 | for (a = localized_ues; a; a = a->next) { | |||
1799 | 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 ) ) { | |||
1800 | return a; | |||
1801 | } | |||
1802 | } | |||
1803 | ||||
1804 | for (a = unlocalized_ues; a; a = a->next) { | |||
1805 | 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 ) ) { | |||
1806 | snmp_ue_assoc_t* n = localize_ue( a, given_engine, given_engine_len ); | |||
1807 | 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); }; | |||
1808 | return n; | |||
1809 | } | |||
1810 | } | |||
1811 | ||||
1812 | return NULL((void*)0); | |||
1813 | } | |||
1814 | ||||
1815 | static bool_Bool | |||
1816 | snmp_usm_auth(const packet_info *pinfo, const snmp_usm_auth_model_t model, snmp_usm_params_t* p, uint8_t** calc_auth_p, | |||
1817 | unsigned* calc_auth_len_p, char const** error) | |||
1818 | { | |||
1819 | int msg_len; | |||
1820 | uint8_t* msg; | |||
1821 | unsigned auth_len; | |||
1822 | uint8_t* auth; | |||
1823 | uint8_t* key; | |||
1824 | unsigned key_len; | |||
1825 | uint8_t *calc_auth; | |||
1826 | unsigned start; | |||
1827 | unsigned end; | |||
1828 | unsigned i; | |||
1829 | ||||
1830 | if (!p->auth_tvb) { | |||
1831 | *error = "No Authenticator"; | |||
1832 | return false0; | |||
1833 | } | |||
1834 | ||||
1835 | key = p->user_assoc->user.authKey.data; | |||
1836 | key_len = p->user_assoc->user.authKey.len; | |||
1837 | ||||
1838 | if (! key ) { | |||
1839 | *error = "User has no authKey"; | |||
1840 | return false0; | |||
1841 | } | |||
1842 | ||||
1843 | auth_len = tvb_captured_length(p->auth_tvb); | |||
1844 | ||||
1845 | if (auth_len != auth_tag_len[model]) { | |||
1846 | *error = "Authenticator length wrong"; | |||
1847 | return false0; | |||
1848 | } | |||
1849 | ||||
1850 | msg_len = tvb_captured_length(p->msg_tvb); | |||
1851 | if (msg_len <= 0) { | |||
1852 | *error = "Not enough data remaining"; | |||
1853 | return false0; | |||
1854 | } | |||
1855 | msg = (uint8_t*)tvb_memdup(pinfo->pool,p->msg_tvb,0,msg_len); | |||
1856 | ||||
1857 | auth = (uint8_t*)tvb_memdup(pinfo->pool,p->auth_tvb,0,auth_len); | |||
1858 | ||||
1859 | start = p->auth_offset - p->start_offset; | |||
1860 | end = start + auth_len; | |||
1861 | ||||
1862 | /* fill the authenticator with zeros */ | |||
1863 | for ( i = start ; i < end ; i++ ) { | |||
1864 | msg[i] = '\0'; | |||
1865 | } | |||
1866 | ||||
1867 | calc_auth = (uint8_t*)wmem_alloc(pinfo->pool, auth_hash_len[model]); | |||
1868 | ||||
1869 | if (ws_hmac_buffer(auth_hash_algo[model], calc_auth, msg, msg_len, key, key_len)) { | |||
1870 | return false0; | |||
1871 | } | |||
1872 | ||||
1873 | if (calc_auth_p) *calc_auth_p = calc_auth; | |||
1874 | if (calc_auth_len_p) *calc_auth_len_p = auth_len; | |||
1875 | ||||
1876 | return ( memcmp(auth,calc_auth,auth_len) != 0 ) ? false0 : true1; | |||
1877 | } | |||
1878 | ||||
1879 | static tvbuff_t* | |||
1880 | snmp_usm_priv_des(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
1881 | { | |||
1882 | gcry_error_t err; | |||
1883 | gcry_cipher_hd_t hd = NULL((void*)0); | |||
1884 | ||||
1885 | uint8_t* cleartext; | |||
1886 | uint8_t* des_key = p->user_assoc->user.privKey.data; /* first 8 bytes */ | |||
1887 | uint8_t* pre_iv = &(p->user_assoc->user.privKey.data[8]); /* last 8 bytes */ | |||
1888 | uint8_t* salt; | |||
1889 | int salt_len; | |||
1890 | int cryptgrm_len; | |||
1891 | uint8_t* cryptgrm; | |||
1892 | tvbuff_t* clear_tvb; | |||
1893 | uint8_t iv[8]; | |||
1894 | unsigned i; | |||
1895 | ||||
1896 | ||||
1897 | salt_len = tvb_captured_length(p->priv_tvb); | |||
1898 | ||||
1899 | if (salt_len != 8) { | |||
1900 | *error = "decryptionError: msgPrivacyParameters length != 8"; | |||
1901 | return NULL((void*)0); | |||
1902 | } | |||
1903 | ||||
1904 | salt = (uint8_t*)tvb_memdup(pinfo->pool,p->priv_tvb,0,salt_len); | |||
1905 | ||||
1906 | /* | |||
1907 | The resulting "salt" is XOR-ed with the pre-IV to obtain the IV. | |||
1908 | */ | |||
1909 | for (i=0; i<8; i++) { | |||
1910 | iv[i] = pre_iv[i] ^ salt[i]; | |||
1911 | } | |||
1912 | ||||
1913 | cryptgrm_len = tvb_captured_length(encryptedData); | |||
1914 | ||||
1915 | if ((cryptgrm_len <= 0) || (cryptgrm_len % 8)) { | |||
1916 | *error = "decryptionError: the length of the encrypted data is not a multiple of 8 octets"; | |||
1917 | return NULL((void*)0); | |||
1918 | } | |||
1919 | ||||
1920 | cryptgrm = (uint8_t*)tvb_memdup(pinfo->pool,encryptedData,0,-1); | |||
1921 | ||||
1922 | cleartext = (uint8_t*)wmem_alloc(pinfo->pool, cryptgrm_len); | |||
1923 | ||||
1924 | err = gcry_cipher_open(&hd, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_CBC, 0); | |||
1925 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1926 | ||||
1927 | err = gcry_cipher_setiv(hd, iv, 8); | |||
1928 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1929 | ||||
1930 | err = gcry_cipher_setkey(hd,des_key,8); | |||
1931 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1932 | ||||
1933 | err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len); | |||
1934 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1935 | ||||
1936 | gcry_cipher_close(hd); | |||
1937 | ||||
1938 | clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len); | |||
1939 | ||||
1940 | return clear_tvb; | |||
1941 | ||||
1942 | on_gcry_error: | |||
1943 | *error = (const char *)gcry_strerror(err); | |||
1944 | if (hd) gcry_cipher_close(hd); | |||
1945 | return NULL((void*)0); | |||
1946 | } | |||
1947 | ||||
1948 | static tvbuff_t* | |||
1949 | snmp_usm_priv_aes_common(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error, int algo) | |||
1950 | { | |||
1951 | gcry_error_t err; | |||
1952 | gcry_cipher_hd_t hd = NULL((void*)0); | |||
1953 | ||||
1954 | uint8_t* cleartext; | |||
1955 | uint8_t* aes_key = p->user_assoc->user.privKey.data; | |||
1956 | int aes_key_len = p->user_assoc->user.privKey.len; | |||
1957 | uint8_t iv[16]; | |||
1958 | int priv_len; | |||
1959 | int cryptgrm_len; | |||
1960 | uint8_t* cryptgrm; | |||
1961 | tvbuff_t* clear_tvb; | |||
1962 | ||||
1963 | priv_len = tvb_captured_length(p->priv_tvb); | |||
1964 | ||||
1965 | if (priv_len != 8) { | |||
1966 | *error = "decryptionError: msgPrivacyParameters length != 8"; | |||
1967 | return NULL((void*)0); | |||
1968 | } | |||
1969 | ||||
1970 | iv[0] = (p->boots & 0xff000000) >> 24; | |||
1971 | iv[1] = (p->boots & 0x00ff0000) >> 16; | |||
1972 | iv[2] = (p->boots & 0x0000ff00) >> 8; | |||
1973 | iv[3] = (p->boots & 0x000000ff); | |||
1974 | iv[4] = (p->snmp_time & 0xff000000) >> 24; | |||
1975 | iv[5] = (p->snmp_time & 0x00ff0000) >> 16; | |||
1976 | iv[6] = (p->snmp_time & 0x0000ff00) >> 8; | |||
1977 | iv[7] = (p->snmp_time & 0x000000ff); | |||
1978 | tvb_memcpy(p->priv_tvb,&(iv[8]),0,8); | |||
1979 | ||||
1980 | cryptgrm_len = tvb_captured_length(encryptedData); | |||
1981 | if (cryptgrm_len <= 0) { | |||
1982 | *error = "Not enough data remaining"; | |||
1983 | return NULL((void*)0); | |||
1984 | } | |||
1985 | cryptgrm = (uint8_t*)tvb_memdup(pinfo->pool,encryptedData,0,-1); | |||
1986 | ||||
1987 | cleartext = (uint8_t*)wmem_alloc(pinfo->pool, cryptgrm_len); | |||
1988 | ||||
1989 | err = gcry_cipher_open(&hd, algo, GCRY_CIPHER_MODE_CFB, 0); | |||
1990 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1991 | ||||
1992 | err = gcry_cipher_setiv(hd, iv, 16); | |||
1993 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1994 | ||||
1995 | err = gcry_cipher_setkey(hd,aes_key,aes_key_len); | |||
1996 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
1997 | ||||
1998 | err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len); | |||
1999 | if (err != GPG_ERR_NO_ERROR) goto on_gcry_error; | |||
2000 | ||||
2001 | gcry_cipher_close(hd); | |||
2002 | ||||
2003 | clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len); | |||
2004 | ||||
2005 | return clear_tvb; | |||
2006 | ||||
2007 | on_gcry_error: | |||
2008 | *error = (const char *)gcry_strerror(err); | |||
2009 | if (hd) gcry_cipher_close(hd); | |||
2010 | return NULL((void*)0); | |||
2011 | } | |||
2012 | ||||
2013 | static tvbuff_t* | |||
2014 | snmp_usm_priv_aes128(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
2015 | { | |||
2016 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES); | |||
2017 | } | |||
2018 | ||||
2019 | static tvbuff_t* | |||
2020 | snmp_usm_priv_aes192(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
2021 | { | |||
2022 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES192); | |||
2023 | } | |||
2024 | ||||
2025 | static tvbuff_t* | |||
2026 | snmp_usm_priv_aes256(snmp_usm_params_t* p, tvbuff_t* encryptedData, packet_info *pinfo, char const** error) | |||
2027 | { | |||
2028 | return snmp_usm_priv_aes_common(p, encryptedData, pinfo, error, GCRY_CIPHER_AES256); | |||
2029 | } | |||
2030 | ||||
2031 | static bool_Bool | |||
2032 | check_ScopedPdu(tvbuff_t* tvb) | |||
2033 | { | |||
2034 | int offset; | |||
2035 | int8_t ber_class; | |||
2036 | bool_Bool pc; | |||
2037 | int32_t tag; | |||
2038 | int hoffset, eoffset; | |||
2039 | uint32_t len; | |||
2040 | ||||
2041 | offset = get_ber_identifier(tvb, 0, &ber_class, &pc, &tag); | |||
2042 | offset = get_ber_length(tvb, offset, NULL((void*)0), NULL((void*)0)); | |||
2043 | ||||
2044 | if ( ! (((ber_class!=BER_CLASS_APP1) && (ber_class!=BER_CLASS_PRI3) ) | |||
2045 | && ( (!pc) || (ber_class!=BER_CLASS_UNI0) || (tag!=BER_UNI_TAG_ENUMERATED10) ) | |||
2046 | )) return false0; | |||
2047 | ||||
2048 | if((tvb_get_uint8(tvb, offset)==0)&&(tvb_get_uint8(tvb, offset+1)==0)) | |||
2049 | return true1; | |||
2050 | ||||
2051 | hoffset = offset; | |||
2052 | ||||
2053 | offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag); | |||
2054 | offset = get_ber_length(tvb, offset, &len, NULL((void*)0)); | |||
2055 | eoffset = offset + len; | |||
2056 | ||||
2057 | if (eoffset <= hoffset) return false0; | |||
2058 | ||||
2059 | if ((ber_class!=BER_CLASS_APP1)&&(ber_class!=BER_CLASS_PRI3)) | |||
2060 | if( (ber_class!=BER_CLASS_UNI0) | |||
2061 | ||((tag<BER_UNI_TAG_NumericString18)&&(tag!=BER_UNI_TAG_OCTETSTRING4)&&(tag!=BER_UNI_TAG_UTF8String12)) ) | |||
2062 | return false0; | |||
2063 | ||||
2064 | return true1; | |||
2065 | ||||
2066 | } | |||
2067 | ||||
2068 | ||||
2069 | ||||
2070 | ||||
2071 | static int | |||
2072 | dissect_snmp_EnterpriseOID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2073 | const char* name; | |||
2074 | ||||
2075 | offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_index, &enterprise_oid); | |||
2076 | ||||
2077 | ||||
2078 | if (display_oid && enterprise_oid) { | |||
2079 | name = oid_resolved_from_string(actx->pinfo->pool, enterprise_oid); | |||
2080 | if (name) { | |||
2081 | col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", name); | |||
2082 | } | |||
2083 | } | |||
2084 | ||||
2085 | ||||
2086 | return offset; | |||
2087 | } | |||
2088 | ||||
2089 | ||||
2090 | ||||
2091 | static int | |||
2092 | dissect_snmp_OCTET_STRING_SIZE_4(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2093 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2094 | NULL((void*)0)); | |||
2095 | ||||
2096 | return offset; | |||
2097 | } | |||
2098 | ||||
2099 | ||||
2100 | ||||
2101 | static int | |||
2102 | dissect_snmp_NetworkAddress(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2103 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2104 | hf_index, BER_CLASS_APP1, 0, true1, dissect_snmp_OCTET_STRING_SIZE_4); | |||
2105 | ||||
2106 | return offset; | |||
2107 | } | |||
2108 | ||||
2109 | ||||
2110 | ||||
2111 | static int | |||
2112 | dissect_snmp_INTEGER_0_4294967295(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2113 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2114 | NULL((void*)0)); | |||
2115 | ||||
2116 | return offset; | |||
2117 | } | |||
2118 | ||||
2119 | ||||
2120 | ||||
2121 | static int | |||
2122 | dissect_snmp_TimeTicks(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2123 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2124 | hf_index, BER_CLASS_APP1, 3, true1, dissect_snmp_INTEGER_0_4294967295); | |||
2125 | ||||
2126 | return offset; | |||
2127 | } | |||
2128 | ||||
2129 | ||||
2130 | ||||
2131 | static int | |||
2132 | dissect_snmp_Integer32(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2133 | ||||
2134 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2135 | &RequestID); | |||
2136 | ||||
2137 | ||||
2138 | ||||
2139 | return offset; | |||
2140 | } | |||
2141 | ||||
2142 | ||||
2143 | ||||
2144 | static int | |||
2145 | dissect_snmp_ObjectName(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2146 | offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL((void*)0)); | |||
2147 | ||||
2148 | return offset; | |||
2149 | } | |||
2150 | ||||
2151 | ||||
2152 | static const value_string snmp_Version_vals[] = { | |||
2153 | { 0, "version-1" }, | |||
2154 | { 1, "v2c" }, | |||
2155 | { 2, "v2u" }, | |||
2156 | { 3, "snmpv3" }, | |||
2157 | { 0, NULL((void*)0) } | |||
2158 | }; | |||
2159 | ||||
2160 | ||||
2161 | static int | |||
2162 | dissect_snmp_Version(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2163 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2164 | &snmp_version); | |||
2165 | ||||
2166 | return offset; | |||
2167 | } | |||
2168 | ||||
2169 | ||||
2170 | ||||
2171 | static int | |||
2172 | dissect_snmp_Community(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2173 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2174 | NULL((void*)0)); | |||
2175 | ||||
2176 | return offset; | |||
2177 | } | |||
2178 | ||||
2179 | ||||
2180 | ||||
2181 | static int | |||
2182 | dissect_snmp_T_request_id(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2183 | ||||
2184 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2185 | &RequestID); | |||
2186 | ||||
2187 | ||||
2188 | ||||
2189 | return offset; | |||
2190 | } | |||
2191 | ||||
2192 | ||||
2193 | static const value_string snmp_T_error_status_vals[] = { | |||
2194 | { 0, "noError" }, | |||
2195 | { 1, "tooBig" }, | |||
2196 | { 2, "noSuchName" }, | |||
2197 | { 3, "badValue" }, | |||
2198 | { 4, "readOnly" }, | |||
2199 | { 5, "genErr" }, | |||
2200 | { 6, "noAccess" }, | |||
2201 | { 7, "wrongType" }, | |||
2202 | { 8, "wrongLength" }, | |||
2203 | { 9, "wrongEncoding" }, | |||
2204 | { 10, "wrongValue" }, | |||
2205 | { 11, "noCreation" }, | |||
2206 | { 12, "inconsistentValue" }, | |||
2207 | { 13, "resourceUnavailable" }, | |||
2208 | { 14, "commitFailed" }, | |||
2209 | { 15, "undoFailed" }, | |||
2210 | { 16, "authorizationError" }, | |||
2211 | { 17, "notWritable" }, | |||
2212 | { 18, "inconsistentName" }, | |||
2213 | { 0, NULL((void*)0) } | |||
2214 | }; | |||
2215 | ||||
2216 | ||||
2217 | static int | |||
2218 | dissect_snmp_T_error_status(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2219 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2220 | NULL((void*)0)); | |||
2221 | ||||
2222 | return offset; | |||
2223 | } | |||
2224 | ||||
2225 | ||||
2226 | ||||
2227 | static int | |||
2228 | dissect_snmp_INTEGER(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2229 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2230 | NULL((void*)0)); | |||
2231 | ||||
2232 | return offset; | |||
2233 | } | |||
2234 | ||||
2235 | ||||
2236 | ||||
2237 | static const ber_sequence_t VarBindList_sequence_of[1] = { | |||
2238 | { &hf_snmp_VarBindList_item, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBind }, | |||
2239 | }; | |||
2240 | ||||
2241 | static int | |||
2242 | dissect_snmp_VarBindList(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2243 | offset = dissect_ber_sequence_of(implicit_tag, actx, tree, tvb, offset, | |||
2244 | VarBindList_sequence_of, hf_index, ett_snmp_VarBindList); | |||
2245 | ||||
2246 | return offset; | |||
2247 | } | |||
2248 | ||||
2249 | ||||
2250 | static const ber_sequence_t PDU_sequence[] = { | |||
2251 | { &hf_snmp_request_id , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_request_id }, | |||
2252 | { &hf_snmp_error_status , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_error_status }, | |||
2253 | { &hf_snmp_error_index , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER }, | |||
2254 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
2255 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2256 | }; | |||
2257 | ||||
2258 | static int | |||
2259 | dissect_snmp_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2260 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2261 | PDU_sequence, hf_index, ett_snmp_PDU); | |||
2262 | ||||
2263 | return offset; | |||
2264 | } | |||
2265 | ||||
2266 | ||||
2267 | ||||
2268 | static int | |||
2269 | dissect_snmp_GetRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2270 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2271 | hf_index, BER_CLASS_CON2, 0, true1, dissect_snmp_PDU); | |||
2272 | ||||
2273 | return offset; | |||
2274 | } | |||
2275 | ||||
2276 | ||||
2277 | ||||
2278 | static int | |||
2279 | dissect_snmp_GetNextRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2280 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2281 | hf_index, BER_CLASS_CON2, 1, true1, dissect_snmp_PDU); | |||
2282 | ||||
2283 | return offset; | |||
2284 | } | |||
2285 | ||||
2286 | ||||
2287 | ||||
2288 | static int | |||
2289 | dissect_snmp_GetResponse_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2290 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2291 | hf_index, BER_CLASS_CON2, 2, true1, dissect_snmp_PDU); | |||
2292 | ||||
2293 | return offset; | |||
2294 | } | |||
2295 | ||||
2296 | ||||
2297 | ||||
2298 | static int | |||
2299 | dissect_snmp_SetRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2300 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2301 | hf_index, BER_CLASS_CON2, 3, true1, dissect_snmp_PDU); | |||
2302 | ||||
2303 | return offset; | |||
2304 | } | |||
2305 | ||||
2306 | ||||
2307 | static const value_string snmp_GenericTrap_vals[] = { | |||
2308 | { 0, "coldStart" }, | |||
2309 | { 1, "warmStart" }, | |||
2310 | { 2, "linkDown" }, | |||
2311 | { 3, "linkUp" }, | |||
2312 | { 4, "authenticationFailure" }, | |||
2313 | { 5, "egpNeighborLoss" }, | |||
2314 | { 6, "enterpriseSpecific" }, | |||
2315 | { 0, NULL((void*)0) } | |||
2316 | }; | |||
2317 | ||||
2318 | ||||
2319 | static int | |||
2320 | dissect_snmp_GenericTrap(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2321 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2322 | &generic_trap); | |||
2323 | ||||
2324 | return offset; | |||
2325 | } | |||
2326 | ||||
2327 | ||||
2328 | ||||
2329 | static int | |||
2330 | dissect_snmp_SpecificTrap(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2331 | unsigned specific_trap; | |||
2332 | ||||
2333 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2334 | &specific_trap); | |||
2335 | ||||
2336 | ||||
2337 | if (generic_trap == 6) { /* enterprise specific */ | |||
2338 | const char *specific_str = snmp_lookup_specific_trap (specific_trap); | |||
2339 | if (specific_str) { | |||
2340 | proto_item_append_text(actx->created_item, " (%s)", specific_str); | |||
2341 | } | |||
2342 | } | |||
2343 | ||||
2344 | return offset; | |||
2345 | } | |||
2346 | ||||
2347 | ||||
2348 | static const ber_sequence_t Trap_PDU_U_sequence[] = { | |||
2349 | { &hf_snmp_enterprise , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_EnterpriseOID }, | |||
2350 | { &hf_snmp_agent_addr , BER_CLASS_APP1, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_NetworkAddress }, | |||
2351 | { &hf_snmp_generic_trap , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GenericTrap }, | |||
2352 | { &hf_snmp_specific_trap , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SpecificTrap }, | |||
2353 | { &hf_snmp_time_stamp , BER_CLASS_APP1, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_TimeTicks }, | |||
2354 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
2355 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2356 | }; | |||
2357 | ||||
2358 | static int | |||
2359 | dissect_snmp_Trap_PDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2360 | generic_trap = 0; | |||
2361 | enterprise_oid = NULL((void*)0); | |||
2362 | ||||
2363 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2364 | Trap_PDU_U_sequence, hf_index, ett_snmp_Trap_PDU_U); | |||
2365 | ||||
2366 | ||||
2367 | if (snmp_version != 0) { | |||
2368 | expert_add_info(actx->pinfo, tree, &ei_snmp_trap_pdu_obsolete); | |||
2369 | } | |||
2370 | ||||
2371 | ||||
2372 | return offset; | |||
2373 | } | |||
2374 | ||||
2375 | ||||
2376 | ||||
2377 | static int | |||
2378 | dissect_snmp_Trap_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2379 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2380 | hf_index, BER_CLASS_CON2, 4, true1, dissect_snmp_Trap_PDU_U); | |||
2381 | ||||
2382 | return offset; | |||
2383 | } | |||
2384 | ||||
2385 | ||||
2386 | ||||
2387 | static int | |||
2388 | dissect_snmp_INTEGER_0_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2389 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2390 | NULL((void*)0)); | |||
2391 | ||||
2392 | return offset; | |||
2393 | } | |||
2394 | ||||
2395 | ||||
2396 | static const ber_sequence_t BulkPDU_sequence[] = { | |||
2397 | { &hf_snmp_bulkPDU_request_id, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Integer32 }, | |||
2398 | { &hf_snmp_non_repeaters , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
2399 | { &hf_snmp_max_repetitions, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
2400 | { &hf_snmp_variable_bindings, BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_VarBindList }, | |||
2401 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2402 | }; | |||
2403 | ||||
2404 | static int | |||
2405 | dissect_snmp_BulkPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2406 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2407 | BulkPDU_sequence, hf_index, ett_snmp_BulkPDU); | |||
2408 | ||||
2409 | return offset; | |||
2410 | } | |||
2411 | ||||
2412 | ||||
2413 | ||||
2414 | static int | |||
2415 | dissect_snmp_GetBulkRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2416 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2417 | hf_index, BER_CLASS_CON2, 5, true1, dissect_snmp_BulkPDU); | |||
2418 | ||||
2419 | return offset; | |||
2420 | } | |||
2421 | ||||
2422 | ||||
2423 | ||||
2424 | static int | |||
2425 | dissect_snmp_InformRequest_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2426 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2427 | hf_index, BER_CLASS_CON2, 6, true1, dissect_snmp_PDU); | |||
2428 | ||||
2429 | return offset; | |||
2430 | } | |||
2431 | ||||
2432 | ||||
2433 | ||||
2434 | static int | |||
2435 | dissect_snmp_SNMPv2_Trap_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2436 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2437 | hf_index, BER_CLASS_CON2, 7, true1, dissect_snmp_PDU); | |||
2438 | ||||
2439 | return offset; | |||
2440 | } | |||
2441 | ||||
2442 | ||||
2443 | ||||
2444 | static int | |||
2445 | dissect_snmp_Report_PDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2446 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2447 | hf_index, BER_CLASS_CON2, 8, true1, dissect_snmp_PDU); | |||
2448 | ||||
2449 | return offset; | |||
2450 | } | |||
2451 | ||||
2452 | ||||
2453 | static const value_string snmp_PDUs_vals[] = { | |||
2454 | { 0, "get-request" }, | |||
2455 | { 1, "get-next-request" }, | |||
2456 | { 2, "get-response" }, | |||
2457 | { 3, "set-request" }, | |||
2458 | { 4, "trap" }, | |||
2459 | { 5, "getBulkRequest" }, | |||
2460 | { 6, "informRequest" }, | |||
2461 | { 7, "snmpV2-trap" }, | |||
2462 | { 8, "report" }, | |||
2463 | { 0, NULL((void*)0) } | |||
2464 | }; | |||
2465 | ||||
2466 | static const ber_choice_t PDUs_choice[] = { | |||
2467 | { 0, &hf_snmp_get_request , BER_CLASS_CON2, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetRequest_PDU }, | |||
2468 | { 1, &hf_snmp_get_next_request, BER_CLASS_CON2, 1, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetNextRequest_PDU }, | |||
2469 | { 2, &hf_snmp_get_response , BER_CLASS_CON2, 2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetResponse_PDU }, | |||
2470 | { 3, &hf_snmp_set_request , BER_CLASS_CON2, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SetRequest_PDU }, | |||
2471 | { 4, &hf_snmp_trap , BER_CLASS_CON2, 4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Trap_PDU }, | |||
2472 | { 5, &hf_snmp_getBulkRequest , BER_CLASS_CON2, 5, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_GetBulkRequest_PDU }, | |||
2473 | { 6, &hf_snmp_informRequest , BER_CLASS_CON2, 6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_InformRequest_PDU }, | |||
2474 | { 7, &hf_snmp_snmpV2_trap , BER_CLASS_CON2, 7, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SNMPv2_Trap_PDU }, | |||
2475 | { 8, &hf_snmp_report , BER_CLASS_CON2, 8, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Report_PDU }, | |||
2476 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2477 | }; | |||
2478 | ||||
2479 | static int | |||
2480 | dissect_snmp_PDUs(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2481 | int pdu_type=-1; | |||
2482 | ||||
2483 | snmp_request_response_t *srrp; | |||
2484 | snmp_conv_info_t *snmp_info = (snmp_conv_info_t *)actx->private_data; | |||
2485 | ||||
2486 | col_clear(actx->pinfo->cinfo, COL_INFO); | |||
2487 | ||||
2488 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
2489 | PDUs_choice, hf_index, ett_snmp_PDUs, | |||
2490 | &pdu_type); | |||
2491 | ||||
2492 | if( (pdu_type!=-1) && snmp_PDUs_vals[pdu_type].strptr ){ | |||
2493 | col_prepend_fstr(actx->pinfo->cinfo, COL_INFO, "%s", snmp_PDUs_vals[pdu_type].strptr); | |||
2494 | ||||
2495 | /* pdu_type is the index, not the tag so convert it to the tag value */ | |||
2496 | pdu_type = snmp_PDUs_vals[pdu_type].value; | |||
2497 | ||||
2498 | srrp=snmp_match_request_response(tvb, actx->pinfo, tree, RequestID, pdu_type, snmp_info); | |||
2499 | if (srrp) { | |||
2500 | tap_queue_packet(snmp_tap, actx->pinfo, srrp); | |||
2501 | } | |||
2502 | } | |||
2503 | ||||
2504 | ||||
2505 | ||||
2506 | return offset; | |||
2507 | } | |||
2508 | ||||
2509 | ||||
2510 | static const ber_sequence_t Message_sequence[] = { | |||
2511 | { &hf_snmp_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
2512 | { &hf_snmp_community , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Community }, | |||
2513 | { &hf_snmp_data , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_PDUs }, | |||
2514 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2515 | }; | |||
2516 | ||||
2517 | static int | |||
2518 | dissect_snmp_Message(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2519 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2520 | Message_sequence, hf_index, ett_snmp_Message); | |||
2521 | ||||
2522 | return offset; | |||
2523 | } | |||
2524 | ||||
2525 | ||||
2526 | ||||
2527 | static int | |||
2528 | dissect_snmp_OCTET_STRING(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2529 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2530 | NULL((void*)0)); | |||
2531 | ||||
2532 | return offset; | |||
2533 | } | |||
2534 | ||||
2535 | ||||
2536 | static const value_string snmp_T_datav2u_vals[] = { | |||
2537 | { 0, "plaintext" }, | |||
2538 | { 1, "encrypted" }, | |||
2539 | { 0, NULL((void*)0) } | |||
2540 | }; | |||
2541 | ||||
2542 | static const ber_choice_t T_datav2u_choice[] = { | |||
2543 | { 0, &hf_snmp_v2u_plaintext , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_PDUs }, | |||
2544 | { 1, &hf_snmp_encrypted , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
2545 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2546 | }; | |||
2547 | ||||
2548 | static int | |||
2549 | dissect_snmp_T_datav2u(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2550 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
2551 | T_datav2u_choice, hf_index, ett_snmp_T_datav2u, | |||
2552 | NULL((void*)0)); | |||
2553 | ||||
2554 | return offset; | |||
2555 | } | |||
2556 | ||||
2557 | ||||
2558 | static const ber_sequence_t Messagev2u_sequence[] = { | |||
2559 | { &hf_snmp_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
2560 | { &hf_snmp_parameters , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
2561 | { &hf_snmp_datav2u , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_T_datav2u }, | |||
2562 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2563 | }; | |||
2564 | ||||
2565 | static int | |||
2566 | dissect_snmp_Messagev2u(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2567 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2568 | Messagev2u_sequence, hf_index, ett_snmp_Messagev2u); | |||
2569 | ||||
2570 | return offset; | |||
2571 | } | |||
2572 | ||||
2573 | ||||
2574 | ||||
2575 | static int | |||
2576 | dissect_snmp_SnmpEngineID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2577 | tvbuff_t* param_tvb = NULL((void*)0); | |||
2578 | ||||
2579 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, ¶m_tvb); | |||
2580 | if (param_tvb) { | |||
2581 | proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid); | |||
2582 | dissect_snmp_engineid(engine_tree, actx->pinfo, param_tvb, 0, tvb_reported_length_remaining(param_tvb,0)); | |||
2583 | } | |||
2584 | ||||
2585 | ||||
2586 | return offset; | |||
2587 | } | |||
2588 | ||||
2589 | ||||
2590 | ||||
2591 | static int | |||
2592 | dissect_snmp_T_msgAuthoritativeEngineID(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2593 | ||||
2594 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, &usm_p.engine_tvb); | |||
2595 | if (usm_p.engine_tvb) { | |||
2596 | proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid); | |||
2597 | dissect_snmp_engineid(engine_tree, actx->pinfo, usm_p.engine_tvb, 0, tvb_reported_length_remaining(usm_p.engine_tvb,0)); | |||
2598 | } | |||
2599 | ||||
2600 | ||||
2601 | return offset; | |||
2602 | } | |||
2603 | ||||
2604 | ||||
2605 | ||||
2606 | static int | |||
2607 | dissect_snmp_T_msgAuthoritativeEngineBoots(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2608 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2609 | &usm_p.boots); | |||
2610 | ||||
2611 | return offset; | |||
2612 | } | |||
2613 | ||||
2614 | ||||
2615 | ||||
2616 | static int | |||
2617 | dissect_snmp_T_msgAuthoritativeEngineTime(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2618 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2619 | &usm_p.snmp_time); | |||
2620 | ||||
2621 | return offset; | |||
2622 | } | |||
2623 | ||||
2624 | ||||
2625 | ||||
2626 | static int | |||
2627 | dissect_snmp_T_msgUserName(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2628 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2629 | &usm_p.user_tvb); | |||
2630 | ||||
2631 | return offset; | |||
2632 | } | |||
2633 | ||||
2634 | ||||
2635 | ||||
2636 | static int | |||
2637 | dissect_snmp_T_msgAuthenticationParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2638 | offset = dissect_ber_octet_string(false0, actx, tree, tvb, offset, hf_index, &usm_p.auth_tvb); | |||
2639 | if (usm_p.auth_tvb) { | |||
2640 | usm_p.auth_item = actx->created_item; | |||
2641 | usm_p.auth_offset = tvb_offset_from_real_beginning(usm_p.auth_tvb); | |||
2642 | } | |||
2643 | ||||
2644 | return offset; | |||
2645 | } | |||
2646 | ||||
2647 | ||||
2648 | ||||
2649 | static int | |||
2650 | dissect_snmp_T_msgPrivacyParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2651 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2652 | &usm_p.priv_tvb); | |||
2653 | ||||
2654 | return offset; | |||
2655 | } | |||
2656 | ||||
2657 | ||||
2658 | static const ber_sequence_t UsmSecurityParameters_sequence[] = { | |||
2659 | { &hf_snmp_msgAuthoritativeEngineID, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineID }, | |||
2660 | { &hf_snmp_msgAuthoritativeEngineBoots, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineBoots }, | |||
2661 | { &hf_snmp_msgAuthoritativeEngineTime, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthoritativeEngineTime }, | |||
2662 | { &hf_snmp_msgUserName , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgUserName }, | |||
2663 | { &hf_snmp_msgAuthenticationParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgAuthenticationParameters }, | |||
2664 | { &hf_snmp_msgPrivacyParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgPrivacyParameters }, | |||
2665 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2666 | }; | |||
2667 | ||||
2668 | static int | |||
2669 | dissect_snmp_UsmSecurityParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2670 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2671 | UsmSecurityParameters_sequence, hf_index, ett_snmp_UsmSecurityParameters); | |||
2672 | ||||
2673 | return offset; | |||
2674 | } | |||
2675 | ||||
2676 | ||||
2677 | ||||
2678 | static int | |||
2679 | dissect_snmp_INTEGER_484_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2680 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2681 | NULL((void*)0)); | |||
2682 | ||||
2683 | return offset; | |||
2684 | } | |||
2685 | ||||
2686 | ||||
2687 | ||||
2688 | static int | |||
2689 | dissect_snmp_T_msgFlags(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2690 | tvbuff_t *parameter_tvb = NULL((void*)0); | |||
2691 | ||||
2692 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2693 | ¶meter_tvb); | |||
2694 | ||||
2695 | if (parameter_tvb){ | |||
2696 | uint8_t v3_flags = tvb_get_uint8(parameter_tvb, 0); | |||
2697 | proto_tree* flags_tree = proto_item_add_subtree(actx->created_item,ett_msgFlags); | |||
2698 | ||||
2699 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_report, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
2700 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_crypt, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
2701 | proto_tree_add_item(flags_tree, hf_snmp_v3_flags_auth, parameter_tvb, 0, 1, ENC_BIG_ENDIAN0x00000000); | |||
2702 | ||||
2703 | usm_p.encrypted = v3_flags & TH_CRYPT0x02 ? true1 : false0; | |||
2704 | usm_p.authenticated = v3_flags & TH_AUTH0x01 ? true1 : false0; | |||
2705 | } | |||
2706 | ||||
2707 | ||||
2708 | ||||
2709 | return offset; | |||
2710 | } | |||
2711 | ||||
2712 | ||||
2713 | ||||
2714 | static int | |||
2715 | dissect_snmp_T_msgSecurityModel(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2716 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2717 | &MsgSecurityModel); | |||
2718 | ||||
2719 | return offset; | |||
2720 | } | |||
2721 | ||||
2722 | ||||
2723 | static const ber_sequence_t HeaderData_sequence[] = { | |||
2724 | { &hf_snmp_msgID , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_0_2147483647 }, | |||
2725 | { &hf_snmp_msgMaxSize , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_484_2147483647 }, | |||
2726 | { &hf_snmp_msgFlags , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgFlags }, | |||
2727 | { &hf_snmp_msgSecurityModel, BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgSecurityModel }, | |||
2728 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2729 | }; | |||
2730 | ||||
2731 | static int | |||
2732 | dissect_snmp_HeaderData(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2733 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2734 | HeaderData_sequence, hf_index, ett_snmp_HeaderData); | |||
2735 | ||||
2736 | return offset; | |||
2737 | } | |||
2738 | ||||
2739 | ||||
2740 | ||||
2741 | static int | |||
2742 | dissect_snmp_T_msgSecurityParameters(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2743 | ||||
2744 | switch(MsgSecurityModel){ | |||
| ||||
2745 | case SNMP_SEC_USM3: /* 3 */ | |||
2746 | offset = get_ber_identifier(tvb, offset, NULL((void*)0), NULL((void*)0), NULL((void*)0)); | |||
2747 | offset = get_ber_length(tvb, offset, NULL((void*)0), NULL((void*)0)); | |||
2748 | offset = dissect_snmp_UsmSecurityParameters(false0, tvb, offset, actx, tree, -1); | |||
2749 | usm_p.user_assoc = get_user_assoc(usm_p.engine_tvb, usm_p.user_tvb, actx->pinfo); | |||
2750 | break; | |||
2751 | case SNMP_SEC_ANY0: /* 0 */ | |||
2752 | case SNMP_SEC_V11: /* 1 */ | |||
2753 | case SNMP_SEC_V2C2: /* 2 */ | |||
2754 | default: | |||
2755 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2756 | NULL((void*)0)); | |||
2757 | ||||
2758 | break; | |||
2759 | } | |||
2760 | ||||
2761 | ||||
2762 | return offset; | |||
2763 | } | |||
2764 | ||||
2765 | ||||
2766 | static const ber_sequence_t ScopedPDU_sequence[] = { | |||
2767 | { &hf_snmp_contextEngineID, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SnmpEngineID }, | |||
2768 | { &hf_snmp_contextName , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
2769 | { &hf_snmp_data , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_PDUs }, | |||
2770 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2771 | }; | |||
2772 | ||||
2773 | static int | |||
2774 | dissect_snmp_ScopedPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2775 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2776 | ScopedPDU_sequence, hf_index, ett_snmp_ScopedPDU); | |||
2777 | ||||
2778 | return offset; | |||
2779 | } | |||
2780 | ||||
2781 | ||||
2782 | ||||
2783 | static int | |||
2784 | dissect_snmp_T_encryptedPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2785 | tvbuff_t* crypt_tvb; | |||
2786 | offset = dissect_ber_octet_string(false0, actx, tree, tvb, offset, hf_snmp_encryptedPDU, &crypt_tvb); | |||
2787 | ||||
2788 | if( usm_p.encrypted && crypt_tvb | |||
2789 | && usm_p.user_assoc | |||
2790 | && usm_p.user_assoc->user.privProtocol ) { | |||
2791 | ||||
2792 | const char* error = NULL((void*)0); | |||
2793 | proto_tree* encryptedpdu_tree = proto_item_add_subtree(actx->created_item,ett_encryptedPDU); | |||
2794 | tvbuff_t* cleartext_tvb = usm_p.user_assoc->user.privProtocol(&usm_p, crypt_tvb, actx->pinfo, &error ); | |||
2795 | ||||
2796 | if (! cleartext_tvb) { | |||
2797 | proto_tree_add_expert_format(encryptedpdu_tree, actx->pinfo, &ei_snmp_failed_decrypted_data_pdu, | |||
2798 | crypt_tvb, 0, -1, "Failed to decrypt encryptedPDU: %s", error); | |||
2799 | ||||
2800 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Failed to decrypt"); | |||
2801 | ||||
2802 | return offset; | |||
2803 | } else { | |||
2804 | proto_item* decrypted_item; | |||
2805 | proto_tree* decrypted_tree; | |||
2806 | ||||
2807 | if (! check_ScopedPdu(cleartext_tvb)) { | |||
2808 | proto_tree_add_expert(encryptedpdu_tree, actx->pinfo, &ei_snmp_decrypted_data_bad_formatted, cleartext_tvb, 0, -1); | |||
2809 | ||||
2810 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Decrypted data not formatted as expected"); | |||
2811 | ||||
2812 | return offset; | |||
2813 | } | |||
2814 | ||||
2815 | ||||
2816 | add_new_data_source(actx->pinfo, cleartext_tvb, "Decrypted ScopedPDU"); | |||
2817 | ||||
2818 | decrypted_item = proto_tree_add_item(encryptedpdu_tree, hf_snmp_decryptedPDU,cleartext_tvb,0,-1,ENC_NA0x00000000); | |||
2819 | decrypted_tree = proto_item_add_subtree(decrypted_item,ett_decrypted); | |||
2820 | dissect_snmp_ScopedPDU(false0, cleartext_tvb, 0, actx, decrypted_tree, -1); | |||
2821 | } | |||
2822 | } else { | |||
2823 | col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: privKey Unknown"); | |||
2824 | } | |||
2825 | ||||
2826 | ||||
2827 | return offset; | |||
2828 | } | |||
2829 | ||||
2830 | ||||
2831 | static const value_string snmp_ScopedPduData_vals[] = { | |||
2832 | { 0, "plaintext" }, | |||
2833 | { 1, "encryptedPDU" }, | |||
2834 | { 0, NULL((void*)0) } | |||
2835 | }; | |||
2836 | ||||
2837 | static const ber_choice_t ScopedPduData_choice[] = { | |||
2838 | { 0, &hf_snmp_plaintext , BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ScopedPDU }, | |||
2839 | { 1, &hf_snmp_encryptedPDU , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_encryptedPDU }, | |||
2840 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2841 | }; | |||
2842 | ||||
2843 | static int | |||
2844 | dissect_snmp_ScopedPduData(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2845 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
2846 | ScopedPduData_choice, hf_index, ett_snmp_ScopedPduData, | |||
2847 | NULL((void*)0)); | |||
2848 | ||||
2849 | return offset; | |||
2850 | } | |||
2851 | ||||
2852 | ||||
2853 | static const ber_sequence_t SNMPv3Message_sequence[] = { | |||
2854 | { &hf_snmp_msgVersion , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_Version }, | |||
2855 | { &hf_snmp_msgGlobalData , BER_CLASS_UNI0, BER_UNI_TAG_SEQUENCE16, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_HeaderData }, | |||
2856 | { &hf_snmp_msgSecurityParameters, BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_msgSecurityParameters }, | |||
2857 | { &hf_snmp_msgData , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004|BER_FLAGS_NOTCHKTAG0x00000008, dissect_snmp_ScopedPduData }, | |||
2858 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2859 | }; | |||
2860 | ||||
2861 | static int | |||
2862 | dissect_snmp_SNMPv3Message(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2863 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2864 | SNMPv3Message_sequence, hf_index, ett_snmp_SNMPv3Message); | |||
2865 | ||||
2866 | ||||
2867 | if( usm_p.authenticated | |||
2868 | && usm_p.user_assoc ) { | |||
2869 | const char* error = NULL((void*)0); | |||
2870 | proto_item* authen_item; | |||
2871 | proto_tree* authen_tree = proto_item_add_subtree(usm_p.auth_item,ett_authParameters); | |||
2872 | uint8_t* calc_auth = NULL((void*)0); | |||
2873 | unsigned calc_auth_len = 0; | |||
2874 | ||||
2875 | usm_p.authOK = snmp_usm_auth(actx->pinfo, usm_p.user_assoc->user.authModel, &usm_p, &calc_auth, &calc_auth_len, &error ); | |||
2876 | ||||
2877 | if (error) { | |||
2878 | expert_add_info_format( actx->pinfo, usm_p.auth_item, &ei_snmp_verify_authentication_error, "Error while verifying Message authenticity: %s", error ); | |||
2879 | } else { | |||
2880 | expert_field* expert; | |||
2881 | ||||
2882 | authen_item = proto_tree_add_boolean(authen_tree, hf_snmp_msgAuthentication, tvb, 0, 0, usm_p.authOK); | |||
2883 | proto_item_set_generated(authen_item); | |||
2884 | ||||
2885 | if (usm_p.authOK) { | |||
2886 | expert = &ei_snmp_authentication_ok; | |||
2887 | } else { | |||
2888 | 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); | |||
2889 | proto_item_append_text(authen_item, " calculated = %s", calc_auth_str); | |||
2890 | expert = &ei_snmp_authentication_error; | |||
2891 | } | |||
2892 | ||||
2893 | expert_add_info( actx->pinfo, authen_item, expert); | |||
2894 | } | |||
2895 | } | |||
2896 | ||||
2897 | return offset; | |||
2898 | } | |||
2899 | ||||
2900 | ||||
2901 | static const value_string snmp_T_smux_version_vals[] = { | |||
2902 | { 0, "version-1" }, | |||
2903 | { 0, NULL((void*)0) } | |||
2904 | }; | |||
2905 | ||||
2906 | ||||
2907 | static int | |||
2908 | dissect_snmp_T_smux_version(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2909 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2910 | NULL((void*)0)); | |||
2911 | ||||
2912 | return offset; | |||
2913 | } | |||
2914 | ||||
2915 | ||||
2916 | ||||
2917 | static int | |||
2918 | dissect_snmp_OBJECT_IDENTIFIER(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2919 | offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL((void*)0)); | |||
2920 | ||||
2921 | return offset; | |||
2922 | } | |||
2923 | ||||
2924 | ||||
2925 | ||||
2926 | static int | |||
2927 | dissect_snmp_DisplayString(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2928 | offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2929 | NULL((void*)0)); | |||
2930 | ||||
2931 | return offset; | |||
2932 | } | |||
2933 | ||||
2934 | ||||
2935 | static const ber_sequence_t SimpleOpen_U_sequence[] = { | |||
2936 | { &hf_snmp_smux_version , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_smux_version }, | |||
2937 | { &hf_snmp_identity , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OBJECT_IDENTIFIER }, | |||
2938 | { &hf_snmp_description , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_DisplayString }, | |||
2939 | { &hf_snmp_password , BER_CLASS_UNI0, BER_UNI_TAG_OCTETSTRING4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OCTET_STRING }, | |||
2940 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2941 | }; | |||
2942 | ||||
2943 | static int | |||
2944 | dissect_snmp_SimpleOpen_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2945 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
2946 | SimpleOpen_U_sequence, hf_index, ett_snmp_SimpleOpen_U); | |||
2947 | ||||
2948 | return offset; | |||
2949 | } | |||
2950 | ||||
2951 | ||||
2952 | ||||
2953 | static int | |||
2954 | dissect_snmp_SimpleOpen(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2955 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
2956 | hf_index, BER_CLASS_APP1, 0, true1, dissect_snmp_SimpleOpen_U); | |||
2957 | ||||
2958 | return offset; | |||
2959 | } | |||
2960 | ||||
2961 | ||||
2962 | static const value_string snmp_OpenPDU_vals[] = { | |||
2963 | { 0, "smux-simple" }, | |||
2964 | { 0, NULL((void*)0) } | |||
2965 | }; | |||
2966 | ||||
2967 | static const ber_choice_t OpenPDU_choice[] = { | |||
2968 | { 0, &hf_snmp_smux_simple , BER_CLASS_APP1, 0, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SimpleOpen }, | |||
2969 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
2970 | }; | |||
2971 | ||||
2972 | static int | |||
2973 | dissect_snmp_OpenPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2974 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
2975 | OpenPDU_choice, hf_index, ett_snmp_OpenPDU, | |||
2976 | NULL((void*)0)); | |||
2977 | ||||
2978 | return offset; | |||
2979 | } | |||
2980 | ||||
2981 | ||||
2982 | static const value_string snmp_ClosePDU_U_vals[] = { | |||
2983 | { 0, "goingDown" }, | |||
2984 | { 1, "unsupportedVersion" }, | |||
2985 | { 2, "packetFormat" }, | |||
2986 | { 3, "protocolError" }, | |||
2987 | { 4, "internalError" }, | |||
2988 | { 5, "authenticationFailure" }, | |||
2989 | { 0, NULL((void*)0) } | |||
2990 | }; | |||
2991 | ||||
2992 | ||||
2993 | static int | |||
2994 | dissect_snmp_ClosePDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
2995 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
2996 | NULL((void*)0)); | |||
2997 | ||||
2998 | return offset; | |||
2999 | } | |||
3000 | ||||
3001 | ||||
3002 | ||||
3003 | static int | |||
3004 | dissect_snmp_ClosePDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3005 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
3006 | hf_index, BER_CLASS_APP1, 1, true1, dissect_snmp_ClosePDU_U); | |||
3007 | ||||
3008 | return offset; | |||
3009 | } | |||
3010 | ||||
3011 | ||||
3012 | ||||
3013 | static int | |||
3014 | dissect_snmp_INTEGER_M1_2147483647(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3015 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
3016 | NULL((void*)0)); | |||
3017 | ||||
3018 | return offset; | |||
3019 | } | |||
3020 | ||||
3021 | ||||
3022 | static const value_string snmp_T_operation_vals[] = { | |||
3023 | { 0, "delete" }, | |||
3024 | { 1, "readOnly" }, | |||
3025 | { 2, "readWrite" }, | |||
3026 | { 0, NULL((void*)0) } | |||
3027 | }; | |||
3028 | ||||
3029 | ||||
3030 | static int | |||
3031 | dissect_snmp_T_operation(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3032 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
3033 | NULL((void*)0)); | |||
3034 | ||||
3035 | return offset; | |||
3036 | } | |||
3037 | ||||
3038 | ||||
3039 | static const ber_sequence_t RReqPDU_U_sequence[] = { | |||
3040 | { &hf_snmp_subtree , BER_CLASS_UNI0, BER_UNI_TAG_OID6, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ObjectName }, | |||
3041 | { &hf_snmp_priority , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_INTEGER_M1_2147483647 }, | |||
3042 | { &hf_snmp_operation , BER_CLASS_UNI0, BER_UNI_TAG_INTEGER2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_T_operation }, | |||
3043 | { NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
3044 | }; | |||
3045 | ||||
3046 | static int | |||
3047 | dissect_snmp_RReqPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3048 | offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset, | |||
3049 | RReqPDU_U_sequence, hf_index, ett_snmp_RReqPDU_U); | |||
3050 | ||||
3051 | return offset; | |||
3052 | } | |||
3053 | ||||
3054 | ||||
3055 | ||||
3056 | static int | |||
3057 | dissect_snmp_RReqPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3058 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
3059 | hf_index, BER_CLASS_APP1, 2, true1, dissect_snmp_RReqPDU_U); | |||
3060 | ||||
3061 | return offset; | |||
3062 | } | |||
3063 | ||||
3064 | ||||
3065 | static const value_string snmp_RRspPDU_U_vals[] = { | |||
3066 | { -1, "failure" }, | |||
3067 | { 0, NULL((void*)0) } | |||
3068 | }; | |||
3069 | ||||
3070 | ||||
3071 | static int | |||
3072 | dissect_snmp_RRspPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3073 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
3074 | NULL((void*)0)); | |||
3075 | ||||
3076 | return offset; | |||
3077 | } | |||
3078 | ||||
3079 | ||||
3080 | ||||
3081 | static int | |||
3082 | dissect_snmp_RRspPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3083 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
3084 | hf_index, BER_CLASS_APP1, 3, true1, dissect_snmp_RRspPDU_U); | |||
3085 | ||||
3086 | return offset; | |||
3087 | } | |||
3088 | ||||
3089 | ||||
3090 | static const value_string snmp_RegisterResponse_vals[] = { | |||
3091 | { 0, "rRspPDU" }, | |||
3092 | { 1, "pDUs" }, | |||
3093 | { 0, NULL((void*)0) } | |||
3094 | }; | |||
3095 | ||||
3096 | static const ber_choice_t RegisterResponse_choice[] = { | |||
3097 | { 0, &hf_snmp_rRspPDU , BER_CLASS_APP1, 3, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RRspPDU }, | |||
3098 | { 1, &hf_snmp_pDUs , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_PDUs }, | |||
3099 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
3100 | }; | |||
3101 | ||||
3102 | static int | |||
3103 | dissect_snmp_RegisterResponse(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3104 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
3105 | RegisterResponse_choice, hf_index, ett_snmp_RegisterResponse, | |||
3106 | NULL((void*)0)); | |||
3107 | ||||
3108 | return offset; | |||
3109 | } | |||
3110 | ||||
3111 | ||||
3112 | static const value_string snmp_SOutPDU_U_vals[] = { | |||
3113 | { 0, "commit" }, | |||
3114 | { 1, "rollback" }, | |||
3115 | { 0, NULL((void*)0) } | |||
3116 | }; | |||
3117 | ||||
3118 | ||||
3119 | static int | |||
3120 | dissect_snmp_SOutPDU_U(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3121 | offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index, | |||
3122 | NULL((void*)0)); | |||
3123 | ||||
3124 | return offset; | |||
3125 | } | |||
3126 | ||||
3127 | ||||
3128 | ||||
3129 | static int | |||
3130 | dissect_snmp_SOutPDU(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3131 | offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset, | |||
3132 | hf_index, BER_CLASS_APP1, 4, true1, dissect_snmp_SOutPDU_U); | |||
3133 | ||||
3134 | return offset; | |||
3135 | } | |||
3136 | ||||
3137 | ||||
3138 | static const value_string snmp_SMUX_PDUs_vals[] = { | |||
3139 | { 0, "open" }, | |||
3140 | { 1, "close" }, | |||
3141 | { 2, "registerRequest" }, | |||
3142 | { 3, "registerResponse" }, | |||
3143 | { 4, "commitOrRollback" }, | |||
3144 | { 0, NULL((void*)0) } | |||
3145 | }; | |||
3146 | ||||
3147 | static const ber_choice_t SMUX_PDUs_choice[] = { | |||
3148 | { 0, &hf_snmp_open , BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_OpenPDU }, | |||
3149 | { 1, &hf_snmp_close , BER_CLASS_APP1, 1, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_ClosePDU }, | |||
3150 | { 2, &hf_snmp_registerRequest, BER_CLASS_APP1, 2, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RReqPDU }, | |||
3151 | { 3, &hf_snmp_registerResponse, BER_CLASS_ANY99/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_RegisterResponse }, | |||
3152 | { 4, &hf_snmp_commitOrRollback, BER_CLASS_APP1, 4, BER_FLAGS_NOOWNTAG0x00000004, dissect_snmp_SOutPDU }, | |||
3153 | { 0, NULL((void*)0), 0, 0, 0, NULL((void*)0) } | |||
3154 | }; | |||
3155 | ||||
3156 | static int | |||
3157 | dissect_snmp_SMUX_PDUs(bool_Bool implicit_tag _U___attribute__((unused)), tvbuff_t *tvb _U___attribute__((unused)), int offset _U___attribute__((unused)), asn1_ctx_t *actx _U___attribute__((unused)), proto_tree *tree _U___attribute__((unused)), int hf_index _U___attribute__((unused))) { | |||
3158 | ||||
3159 | snmp_conv_info_t *snmp_info = snmp_find_conversation_and_get_conv_data(actx->pinfo); | |||
3160 | ||||
3161 | actx->private_data = snmp_info; | |||
3162 | ||||
3163 | offset = dissect_ber_choice(actx, tree, tvb, offset, | |||
3164 | SMUX_PDUs_choice, hf_index, ett_snmp_SMUX_PDUs, | |||
3165 | NULL((void*)0)); | |||
3166 | ||||
3167 | return offset; | |||
3168 | } | |||
3169 | ||||
3170 | /*--- PDUs ---*/ | |||
3171 | ||||
3172 | 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))) { | |||
3173 | int offset = 0; | |||
3174 | asn1_ctx_t asn1_ctx; | |||
3175 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo); | |||
3176 | offset = dissect_snmp_SMUX_PDUs(false0, tvb, offset, &asn1_ctx, tree, hf_snmp_SMUX_PDUs_PDU); | |||
3177 | return offset; | |||
3178 | } | |||
3179 | ||||
3180 | ||||
3181 | static snmp_conv_info_t* | |||
3182 | snmp_find_conversation_and_get_conv_data(packet_info *pinfo) { | |||
3183 | ||||
3184 | conversation_t *conversation = NULL((void*)0); | |||
3185 | snmp_conv_info_t *snmp_info = NULL((void*)0); | |||
3186 | ||||
3187 | /* Get the conversation with the wildcarded port, if it exists | |||
3188 | * and is associated with SNMP, so that requests and responses | |||
3189 | * can be matched even if the response comes from a different, | |||
3190 | * ephemeral, source port, as originally done in OS/400. | |||
3191 | * On UDP, we do not automatically call conversation_set_port2() | |||
3192 | * and we do not want to do so. Possibly this should eventually | |||
3193 | * use find_conversation_full and separate the "SNMP conversation" | |||
3194 | * from "the transport layer conversation that carries SNMP." | |||
3195 | */ | |||
3196 | if (pinfo->destport == UDP_PORT_SNMP161) { | |||
3197 | conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst, conversation_pt_to_conversation_type(pinfo->ptype), | |||
3198 | pinfo->srcport, 0, NO_PORT_B0x00020000); | |||
3199 | } else if (pinfo->srcport == UDP_PORT_SNMP161) { | |||
3200 | conversation = find_conversation(pinfo->fd->num, &pinfo->dst, &pinfo->src, conversation_pt_to_conversation_type(pinfo->ptype), | |||
3201 | pinfo->destport, 0, NO_PORT_B0x00020000); | |||
3202 | } | |||
3203 | if ((conversation == NULL((void*)0)) || (conversation_get_dissector(conversation, pinfo->num) != snmp_handle)) { | |||
3204 | conversation = find_or_create_conversation(pinfo); | |||
3205 | } | |||
3206 | ||||
3207 | snmp_info = (snmp_conv_info_t *)conversation_get_proto_data(conversation, proto_snmp); | |||
3208 | if (snmp_info == NULL((void*)0)) { | |||
3209 | 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 ))); | |||
3210 | snmp_info->request_response=wmem_map_new(wmem_file_scope(), g_int_hash, g_int_equal); | |||
3211 | ||||
3212 | conversation_add_proto_data(conversation, proto_snmp, snmp_info); | |||
3213 | } | |||
3214 | return snmp_info; | |||
3215 | } | |||
3216 | ||||
3217 | unsigned | |||
3218 | dissect_snmp_pdu(tvbuff_t *tvb, int offset, packet_info *pinfo, | |||
3219 | proto_tree *tree, int proto, int ett, bool_Bool is_tcp) | |||
3220 | { | |||
3221 | ||||
3222 | unsigned length_remaining; | |||
3223 | int8_t ber_class; | |||
3224 | bool_Bool pc, ind = 0; | |||
3225 | int32_t tag; | |||
3226 | uint32_t len; | |||
3227 | unsigned message_length; | |||
3228 | int start_offset = offset; | |||
3229 | uint32_t version = 0; | |||
3230 | tvbuff_t *next_tvb; | |||
3231 | ||||
3232 | proto_tree *snmp_tree = NULL((void*)0); | |||
3233 | proto_item *item = NULL((void*)0); | |||
3234 | ||||
3235 | snmp_conv_info_t *snmp_info = snmp_find_conversation_and_get_conv_data(pinfo); | |||
3236 | ||||
3237 | asn1_ctx_t asn1_ctx; | |||
3238 | asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true1, pinfo); | |||
3239 | ||||
3240 | asn1_ctx.private_data = snmp_info; | |||
3241 | ||||
3242 | usm_p.msg_tvb = tvb; | |||
3243 | usm_p.start_offset = tvb_offset_from_real_beginning(tvb); | |||
3244 | usm_p.engine_tvb = NULL((void*)0); | |||
3245 | usm_p.user_tvb = NULL((void*)0); | |||
3246 | usm_p.auth_item = NULL((void*)0); | |||
3247 | usm_p.auth_tvb = NULL((void*)0); | |||
3248 | usm_p.auth_offset = 0; | |||
3249 | usm_p.priv_tvb = NULL((void*)0); | |||
3250 | usm_p.user_assoc = NULL((void*)0); | |||
3251 | usm_p.authenticated = false0; | |||
3252 | usm_p.encrypted = false0; | |||
3253 | usm_p.boots = 0; | |||
3254 | usm_p.snmp_time = 0; | |||
3255 | usm_p.authOK = false0; | |||
3256 | ||||
3257 | /* | |||
3258 | * This will throw an exception if we don't have any data left. | |||
3259 | * That's what we want. (See "tcp_dissect_pdus()", which is | |||
3260 | * similar, but doesn't have to deal with ASN.1. | |||
3261 | * XXX - can we make "tcp_dissect_pdus()" provide enough | |||
3262 | * information to the "get_pdu_len" routine so that we could | |||
3263 | * have that routine deal with ASN.1, and just use | |||
3264 | * "tcp_dissect_pdus()"?) | |||
3265 | */ | |||
3266 | length_remaining = tvb_ensure_captured_length_remaining(tvb, offset); | |||
3267 | ||||
3268 | /* NOTE: we have to parse the message piece by piece, since the | |||
3269 | * capture length may be less than the message length: a 'global' | |||
3270 | * parsing is likely to fail. | |||
3271 | */ | |||
3272 | ||||
3273 | /* | |||
3274 | * If this is SNMP-over-TCP, we might have to do reassembly | |||
3275 | * in order to read the "Sequence Of" header. | |||
3276 | */ | |||
3277 | if (is_tcp && snmp_desegment && pinfo->can_desegment) { | |||
3278 | /* | |||
3279 | * This is TCP, and we should, and can, do reassembly. | |||
3280 | * | |||
3281 | * Is the "Sequence Of" header split across segment | |||
3282 | * boundaries? We require at least 6 bytes for the | |||
3283 | * header, which allows for a 4-byte length (ASN.1 | |||
3284 | * BER). | |||
3285 | */ | |||
3286 | if (length_remaining < 6) { | |||
3287 | /* | |||
3288 | * Yes. Tell the TCP dissector where the data | |||
3289 | * for this message starts in the data it handed | |||
3290 | * us and that we need "some more data." Don't tell | |||
3291 | * it exactly how many bytes we need because if/when | |||
3292 | * we ask for even more (after the header) that will | |||
3293 | * break reassembly. | |||
3294 | */ | |||
3295 | pinfo->desegment_offset = offset; | |||
3296 | pinfo->desegment_len = DESEGMENT_ONE_MORE_SEGMENT0x0fffffff; | |||
3297 | return 0; | |||
3298 | } | |||
3299 | } | |||
3300 | ||||
3301 | /* | |||
3302 | * OK, try to read the "Sequence Of" header; this gets the total | |||
3303 | * length of the SNMP message. | |||
3304 | */ | |||
3305 | offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag); | |||
3306 | /*Get the total octet length of the SNMP data*/ | |||
3307 | offset = get_ber_length(tvb, offset, &len, &ind); | |||
3308 | message_length = len + offset; | |||
3309 | ||||
3310 | /*Get the SNMP version data*/ | |||
3311 | /*offset =*/ dissect_ber_integer(false0, &asn1_ctx, 0, tvb, offset, -1, &version); | |||
3312 | ||||
3313 | ||||
3314 | /* | |||
3315 | * If this is SNMP-over-TCP, we might have to do reassembly | |||
3316 | * to get all of this message. | |||
3317 | */ | |||
3318 | if (is_tcp && snmp_desegment && pinfo->can_desegment) { | |||
3319 | /* | |||
3320 | * Yes - is the message split across segment boundaries? | |||
3321 | */ | |||
3322 | if (length_remaining < message_length) { | |||
3323 | /* | |||
3324 | * Yes. Tell the TCP dissector where the data | |||
3325 | * for this message starts in the data it handed | |||
3326 | * us, and how many more bytes we need, and | |||
3327 | * return. | |||
3328 | */ | |||
3329 | pinfo->desegment_offset = start_offset; | |||
3330 | pinfo->desegment_len = | |||
3331 | message_length - length_remaining; | |||
3332 | ||||
3333 | /* | |||
3334 | * Return 0, which means "I didn't dissect anything | |||
3335 | * because I don't have enough data - we need | |||
3336 | * to desegment". | |||
3337 | */ | |||
3338 | return 0; | |||
3339 | } | |||
3340 | } | |||
3341 | ||||
3342 | var_list = next_tvb_list_new(pinfo->pool); | |||
3343 | ||||
3344 | col_set_str(pinfo->cinfo, COL_PROTOCOL, proto_get_protocol_short_name(find_protocol_by_id(proto))); | |||
3345 | ||||
3346 | item = proto_tree_add_item(tree, proto, tvb, start_offset, message_length, ENC_BIG_ENDIAN0x00000000); | |||
3347 | snmp_tree = proto_item_add_subtree(item, ett); | |||
3348 | ||||
3349 | switch (version) { | |||
3350 | case 0: /* v1 */ | |||
3351 | case 1: /* v2c */ | |||
3352 | offset = dissect_snmp_Message(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
3353 | break; | |||
3354 | case 2: /* v2u */ | |||
3355 | offset = dissect_snmp_Messagev2u(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
3356 | break; | |||
3357 | /* v3 */ | |||
3358 | case 3: | |||
3359 | offset = dissect_snmp_SNMPv3Message(false0 , tvb, start_offset, &asn1_ctx, snmp_tree, -1); | |||
3360 | break; | |||
3361 | default: | |||
3362 | /* | |||
3363 | * Return the length remaining in the tvbuff, so | |||
3364 | * if this is SNMP-over-TCP, our caller thinks there's | |||
3365 | * nothing left to dissect. | |||
3366 | */ | |||
3367 | expert_add_info(pinfo, item, &ei_snmp_version_unknown); | |||
3368 | return length_remaining; | |||
3369 | } | |||
3370 | ||||
3371 | /* There may be appended data after the SNMP data, so treat as raw | |||
3372 | * data which needs to be dissected in case of UDP as UDP is PDU oriented. | |||
3373 | */ | |||
3374 | if((!is_tcp) && (length_remaining > (unsigned)offset)) { | |||
3375 | next_tvb = tvb_new_subset_remaining(tvb, offset); | |||
3376 | call_dissector(data_handle, next_tvb, pinfo, tree); | |||
3377 | } else { | |||
3378 | next_tvb_call(var_list, pinfo, tree, NULL((void*)0), data_handle); | |||
3379 | } | |||
3380 | ||||
3381 | return offset; | |||
3382 | } | |||
3383 | ||||
3384 | static int | |||
3385 | dissect_snmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U___attribute__((unused))) | |||
3386 | { | |||
3387 | int offset; | |||
3388 | int8_t tmp_class; | |||
3389 | bool_Bool tmp_pc; | |||
3390 | int32_t tmp_tag; | |||
3391 | uint32_t tmp_length; | |||
3392 | bool_Bool tmp_ind; | |||
3393 | ||||
3394 | /* | |||
3395 | * See if this looks like SNMP or not. if not, return 0 so | |||
3396 | * wireshark can try some other dissector instead. | |||
3397 | */ | |||
3398 | /* All SNMP packets are BER encoded and consist of a SEQUENCE | |||
3399 | * that spans the entire PDU. The first item is an INTEGER that | |||
3400 | * has the values 0-2 (version 1-3). | |||
3401 | * if not it is not snmp. | |||
3402 | */ | |||
3403 | /* SNMP starts with a SEQUENCE */ | |||
3404 | offset = get_ber_identifier(tvb, 0, &tmp_class, &tmp_pc, &tmp_tag); | |||
3405 | if((tmp_class!=BER_CLASS_UNI0)||(tmp_tag!=BER_UNI_TAG_SEQUENCE16)) { | |||
3406 | return 0; | |||
3407 | } | |||
3408 | /* then comes a length which spans the rest of the tvb */ | |||
3409 | offset = get_ber_length(tvb, offset, &tmp_length, &tmp_ind); | |||
3410 | /* Loosen the heuristic a bit to handle the case where data has intentionally | |||
3411 | * been added after the snmp PDU ( UDP case) (#3684) | |||
3412 | * If this is fragmented or carried in ICMP, we don't expect the tvb to | |||
3413 | * have the full legnth, so don't check. | |||
3414 | */ | |||
3415 | if (!pinfo->fragmented && !pinfo->flags.in_error_pkt) { | |||
3416 | if ( pinfo->ptype == PT_UDP ) { | |||
3417 | if(tmp_length>(uint32_t)tvb_reported_length_remaining(tvb, offset)) { | |||
3418 | return 0; | |||
3419 | } | |||
3420 | }else{ | |||
3421 | if(tmp_length!=(uint32_t)tvb_reported_length_remaining(tvb, offset)) { | |||
3422 | return 0; | |||
3423 | } | |||
3424 | } | |||
3425 | } | |||
3426 | /* then comes an INTEGER (version)*/ | |||
3427 | get_ber_identifier(tvb, offset, &tmp_class, &tmp_pc, &tmp_tag); | |||
3428 | if((tmp_class!=BER_CLASS_UNI0)||(tmp_tag!=BER_UNI_TAG_INTEGER2)) { | |||
3429 | return 0; | |||
3430 | } | |||
3431 | /* do we need to test that version is 0 - 2 (version1-3) ? */ | |||
3432 | ||||
3433 | ||||
3434 | /* | |||
3435 | * The IBM i (OS/400) SNMP agent, at least originally, would | |||
3436 | * send responses back from some *other* UDP port, an ephemeral | |||
3437 | * port above 5000, going back to the same IP address and port | |||
3438 | * from which the request came, similar to TFTP. This only happens | |||
3439 | * with the agent port, 161, not with the trap port, etc. As of | |||
3440 | * 2015 with the latest fixes applied, it no longer does this: | |||
3441 | * https://www.ibm.com/support/pages/ptf/SI55487 | |||
3442 | * https://www.ibm.com/support/pages/ptf/SI55537 | |||
3443 | * | |||
3444 | * The SNMP RFCs are silent on this (cf. L2TP RFC 2661, which | |||
3445 | * supports using either the well-known port or an ephemeral | |||
3446 | * port as the source port for responses, while noting that | |||
3447 | * the latter can cause issues with firewalls and NATs.) so | |||
3448 | * possibly some other implementations could do this. | |||
3449 | * | |||
3450 | * If this packet went to the SNMP port, we check to see if | |||
3451 | * there's already a conversation with one address/port pair | |||
3452 | * matching the source IP address and port of this packet, | |||
3453 | * the other address matching the destination IP address of this | |||
3454 | * packet, and any destination port. | |||
3455 | * | |||
3456 | * If not, we create one, with its address 1/port 1 pair being | |||
3457 | * the source address/port of this packet, its address 2 being | |||
3458 | * the destination address of this packet, and its port 2 being | |||
3459 | * wildcarded, and give it the SNMP dissector as a dissector. | |||
3460 | */ | |||
3461 | ||||
3462 | if (pinfo->destport == UDP_PORT_SNMP161) { | |||
3463 | conversation_t *conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst, conversation_pt_to_conversation_type(pinfo->ptype), | |||
3464 | pinfo->srcport, 0, NO_PORT_B0x00020000); | |||
3465 | ||||
3466 | if( (conversation == NULL((void*)0)) || (conversation_get_dissector(conversation, pinfo->num)!=snmp_handle) ) { | |||
3467 | conversation = conversation_new(pinfo->num, &pinfo->src, &pinfo->dst, conversation_pt_to_conversation_type(pinfo->ptype), | |||
3468 | pinfo->srcport, 0, NO_PORT20x02); | |||
3469 | conversation_set_dissector(conversation, snmp_handle); | |||
3470 | } | |||
3471 | } | |||
3472 | ||||
3473 | return dissect_snmp_pdu(tvb, 0, pinfo, tree, proto_snmp, ett_snmp, false0); | |||
3474 | } | |||
3475 | ||||
3476 | static int | |||
3477 | dissect_snmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U___attribute__((unused))) | |||
3478 | { | |||
3479 | int offset = 0; | |||
3480 | unsigned message_len; | |||
3481 | ||||
3482 | while (tvb_reported_length_remaining(tvb, offset) > 0) { | |||
3483 | message_len = dissect_snmp_pdu(tvb, offset, pinfo, tree, proto_snmp, ett_snmp, true1); | |||
3484 | if (message_len == 0) { | |||
3485 | /* | |||
3486 | * We don't have all the data for that message, | |||
3487 | * so we need to do desegmentation; | |||
3488 | * "dissect_snmp_pdu()" has set that up. | |||
3489 | */ | |||
3490 | break; | |||
3491 | } | |||
3492 | offset += message_len; | |||
3493 | } | |||
3494 | return tvb_captured_length(tvb); | |||
3495 | } | |||
3496 | ||||
3497 | static int | |||
3498 | dissect_smux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) | |||
3499 | { | |||
3500 | proto_tree *smux_tree = NULL((void*)0); | |||
3501 | proto_item *item = NULL((void*)0); | |||
3502 | ||||
3503 | var_list = next_tvb_list_new(pinfo->pool); | |||
3504 | ||||
3505 | col_set_str(pinfo->cinfo, COL_PROTOCOL, "SMUX"); | |||
3506 | ||||
3507 | item = proto_tree_add_item(tree, proto_smux, tvb, 0, -1, ENC_NA0x00000000); | |||
3508 | smux_tree = proto_item_add_subtree(item, ett_smux); | |||
3509 | ||||
3510 | return dissect_SMUX_PDUs_PDU(tvb, pinfo, smux_tree, data); | |||
3511 | } | |||
3512 | ||||
3513 | /* | |||
3514 | MD5 Password to Key Algorithm from RFC 3414 A.2.1 | |||
3515 | SHA1 Password to Key Algorithm from RFC 3414 A.2.2 | |||
3516 | SHA2 Password to Key Algorithm from RFC 7860 9.3 | |||
3517 | */ | |||
3518 | static void | |||
3519 | snmp_usm_password_to_key(const snmp_usm_auth_model_t model, const uint8_t *password, | |||
3520 | unsigned passwordlen, const uint8_t *engineID, unsigned engineLength, uint8_t *key) | |||
3521 | { | |||
3522 | gcry_md_hd_t hash_handle; | |||
3523 | uint8_t *cp, password_buf[64]; | |||
3524 | uint32_t password_index = 0; | |||
3525 | uint32_t count = 0, i; | |||
3526 | unsigned hash_len; | |||
3527 | ||||
3528 | if (gcry_md_open(&hash_handle, auth_hash_algo[model], 0)) { | |||
3529 | return; | |||
3530 | } | |||
3531 | ||||
3532 | hash_len = auth_hash_len[model]; | |||
3533 | ||||
3534 | /**********************************************/ | |||
3535 | /* Use while loop until we've done 1 Megabyte */ | |||
3536 | /**********************************************/ | |||
3537 | while (count < 1048576) { | |||
3538 | cp = password_buf; | |||
3539 | if (passwordlen
| |||
3540 | for (i = 0; i < 64; i++) { | |||
3541 | /*************************************************/ | |||
3542 | /* Take the next octet of the password, wrapping */ | |||
3543 | /* to the beginning of the password as necessary.*/ | |||
3544 | /*************************************************/ | |||
3545 | *cp++ = password[password_index++ % passwordlen]; | |||
| ||||
3546 | } | |||
3547 | } else { | |||
3548 | *cp = 0; | |||
3549 | } | |||
3550 | gcry_md_write(hash_handle, password_buf, 64); | |||
3551 | count += 64; | |||
3552 | } | |||
3553 | memcpy(key, gcry_md_read(hash_handle, 0), hash_len); | |||
3554 | gcry_md_close(hash_handle); | |||
3555 | ||||
3556 | /*****************************************************/ | |||
3557 | /* Now localise the key with the engineID and pass */ | |||
3558 | /* through hash function to produce final key */ | |||
3559 | /* We ignore invalid engineLengths here. More strict */ | |||
3560 | /* checking is done in snmp_users_update_cb. */ | |||
3561 | /*****************************************************/ | |||
3562 | if (gcry_md_open(&hash_handle, auth_hash_algo[model], 0)) { | |||
3563 | return; | |||
3564 | } | |||
3565 | gcry_md_write(hash_handle, key, hash_len); | |||
3566 | gcry_md_write(hash_handle, engineID, engineLength); | |||
3567 | gcry_md_write(hash_handle, key, hash_len); | |||
3568 | memcpy(key, gcry_md_read(hash_handle, 0), hash_len); | |||
3569 | gcry_md_close(hash_handle); | |||
3570 | return; | |||
3571 | } | |||
3572 | ||||
3573 | static void | |||
3574 | process_prefs(void) | |||
3575 | { | |||
3576 | } | |||
3577 | ||||
3578 | 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))) { char* 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; } } | |||
3579 | 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))) { char* 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; } } | |||
3580 | 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))) { char* 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; } } | |||
3581 | 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; } | |||
3582 | 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"); } | |||
3583 | 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"); } | |||
3584 | 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" ); } | |||
3585 | ||||
3586 | static void * | |||
3587 | snmp_specific_trap_copy_cb(void *dest, const void *orig, size_t len _U___attribute__((unused))) | |||
3588 | { | |||
3589 | snmp_st_assoc_t *u = (snmp_st_assoc_t *)dest; | |||
3590 | const snmp_st_assoc_t *o = (const snmp_st_assoc_t *)orig; | |||
3591 | ||||
3592 | u->enterprise = g_strdup(o->enterprise)g_strdup_inline (o->enterprise); | |||
3593 | u->trap = o->trap; | |||
3594 | u->desc = g_strdup(o->desc)g_strdup_inline (o->desc); | |||
3595 | ||||
3596 | return dest; | |||
3597 | } | |||
3598 | ||||
3599 | static void | |||
3600 | snmp_specific_trap_free_cb(void *r) | |||
3601 | { | |||
3602 | snmp_st_assoc_t *u = (snmp_st_assoc_t *)r; | |||
3603 | ||||
3604 | g_free(u->enterprise); | |||
3605 | g_free(u->desc); | |||
3606 | } | |||
3607 | ||||
3608 | 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; } } | |||
3609 | 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); } | |||
3610 | 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; } } | |||
3611 | ||||
3612 | /*--- proto_register_snmp -------------------------------------------*/ | |||
3613 | void proto_register_snmp(void) { | |||
3614 | /* List of fields */ | |||
3615 | static hf_register_info hf[] = { | |||
3616 | { &hf_snmp_response_in, | |||
3617 | { "Response In", "snmp.response_in", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_RESPONSE)((gpointer) (glong) (FT_FRAMENUM_RESPONSE)), 0x0, | |||
3618 | "The response to this SNMP request is in this frame", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3619 | { &hf_snmp_response_to, | |||
3620 | { "Response To", "snmp.response_to", FT_FRAMENUM, BASE_NONE, FRAMENUM_TYPE(FT_FRAMENUM_REQUEST)((gpointer) (glong) (FT_FRAMENUM_REQUEST)), 0x0, | |||
3621 | "This is a response to the SNMP request in this frame", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3622 | { &hf_snmp_time, | |||
3623 | { "Time", "snmp.time", FT_RELATIVE_TIME, BASE_NONE, NULL((void*)0), 0x0, | |||
3624 | "The time between the Request and the Response", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3625 | { &hf_snmp_v3_flags_auth, | |||
3626 | { "Authenticated", "snmp.v3.flags.auth", FT_BOOLEAN, 8, | |||
3627 | 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) }}, | |||
3628 | { &hf_snmp_v3_flags_crypt, | |||
3629 | { "Encrypted", "snmp.v3.flags.crypt", FT_BOOLEAN, 8, | |||
3630 | 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) }}, | |||
3631 | { &hf_snmp_v3_flags_report, | |||
3632 | { "Reportable", "snmp.v3.flags.report", FT_BOOLEAN, 8, | |||
3633 | 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) }}, | |||
3634 | { &hf_snmp_engineid_conform, { | |||
3635 | "Engine ID Conformance", "snmp.engineid.conform", FT_BOOLEAN, 8, | |||
3636 | 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) }}, | |||
3637 | { &hf_snmp_engineid_enterprise, { | |||
3638 | "Engine Enterprise ID", "snmp.engineid.enterprise", FT_UINT32, BASE_ENTERPRISESBASE_CUSTOM, | |||
3639 | STRINGS_ENTERPRISES((const void *) (size_t) (enterprises_base_custom)), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3640 | { &hf_snmp_engineid_format, { | |||
3641 | "Engine ID Format", "snmp.engineid.format", FT_UINT8, BASE_DEC, | |||
3642 | 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) }}, | |||
3643 | { &hf_snmp_engineid_ipv4, { | |||
3644 | "Engine ID Data: IPv4 address", "snmp.engineid.ipv4", FT_IPv4, BASE_NONE, | |||
3645 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3646 | { &hf_snmp_engineid_ipv6, { | |||
3647 | "Engine ID Data: IPv6 address", "snmp.engineid.ipv6", FT_IPv6, BASE_NONE, | |||
3648 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3649 | { &hf_snmp_engineid_cisco_type, { | |||
3650 | "Engine ID Data: Cisco type", "snmp.engineid.cisco.type", FT_UINT8, BASE_HEX, | |||
3651 | 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) }}, | |||
3652 | { &hf_snmp_engineid_mac, { | |||
3653 | "Engine ID Data: MAC address", "snmp.engineid.mac", FT_ETHER, BASE_NONE, | |||
3654 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3655 | { &hf_snmp_engineid_text, { | |||
3656 | "Engine ID Data: Text", "snmp.engineid.text", FT_STRING, BASE_NONE, | |||
3657 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3658 | { &hf_snmp_engineid_time, { | |||
3659 | "Engine ID Data: Creation Time", "snmp.engineid.time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, | |||
3660 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3661 | { &hf_snmp_engineid_data, { | |||
3662 | "Engine ID Data", "snmp.engineid.data", FT_BYTES, BASE_NONE, | |||
3663 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3664 | { &hf_snmp_msgAuthentication, { | |||
3665 | "Authentication", "snmp.v3.auth", FT_BOOLEAN, BASE_NONE, | |||
3666 | 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) }}, | |||
3667 | { &hf_snmp_decryptedPDU, { | |||
3668 | "Decrypted ScopedPDU", "snmp.decrypted_pdu", FT_BYTES, BASE_NONE, | |||
3669 | NULL((void*)0), 0, "Decrypted PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3670 | { &hf_snmp_noSuchObject, { | |||
3671 | "noSuchObject", "snmp.noSuchObject", FT_NONE, BASE_NONE, | |||
3672 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3673 | { &hf_snmp_noSuchInstance, { | |||
3674 | "noSuchInstance", "snmp.noSuchInstance", FT_NONE, BASE_NONE, | |||
3675 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3676 | { &hf_snmp_endOfMibView, { | |||
3677 | "endOfMibView", "snmp.endOfMibView", FT_NONE, BASE_NONE, | |||
3678 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3679 | { &hf_snmp_unSpecified, { | |||
3680 | "unSpecified", "snmp.unSpecified", FT_NONE, BASE_NONE, | |||
3681 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3682 | ||||
3683 | { &hf_snmp_integer32_value, { | |||
3684 | "Value (Integer32)", "snmp.value.int", FT_INT64, BASE_DEC, | |||
3685 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3686 | { &hf_snmp_octetstring_value, { | |||
3687 | "Value (OctetString)", "snmp.value.octets", FT_BYTES, BASE_SHOW_ASCII_PRINTABLE0x00010000, | |||
3688 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3689 | { &hf_snmp_oid_value, { | |||
3690 | "Value (OID)", "snmp.value.oid", FT_OID, BASE_NONE, | |||
3691 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3692 | { &hf_snmp_null_value, { | |||
3693 | "Value (Null)", "snmp.value.null", FT_NONE, BASE_NONE, | |||
3694 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3695 | { &hf_snmp_ipv4_value, { | |||
3696 | "Value (IpAddress)", "snmp.value.ipv4", FT_IPv4, BASE_NONE, | |||
3697 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3698 | { &hf_snmp_ipv6_value, { | |||
3699 | "Value (IpAddress)", "snmp.value.ipv6", FT_IPv6, BASE_NONE, | |||
3700 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3701 | { &hf_snmp_anyaddress_value, { | |||
3702 | "Value (IpAddress)", "snmp.value.addr", FT_BYTES, BASE_NONE, | |||
3703 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3704 | { &hf_snmp_unsigned32_value, { | |||
3705 | "Value (Unsigned32)", "snmp.value.u32", FT_INT64, BASE_DEC, | |||
3706 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3707 | { &hf_snmp_gauge32_value, { | |||
3708 | "Value (Gauge32)", "snmp.value.g32", FT_INT64, BASE_DEC, | |||
3709 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3710 | { &hf_snmp_unknown_value, { | |||
3711 | "Value (Unknown)", "snmp.value.unk", FT_BYTES, BASE_NONE, | |||
3712 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3713 | { &hf_snmp_counter_value, { | |||
3714 | "Value (Counter32)", "snmp.value.counter", FT_UINT64, BASE_DEC, | |||
3715 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3716 | { &hf_snmp_big_counter_value, { | |||
3717 | "Value (Counter64)", "snmp.value.counter", FT_UINT64, BASE_DEC, | |||
3718 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3719 | { &hf_snmp_nsap_value, { | |||
3720 | "Value (NSAP)", "snmp.value.nsap", FT_UINT64, BASE_DEC, | |||
3721 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3722 | { &hf_snmp_timeticks_value, { | |||
3723 | "Value (Timeticks)", "snmp.value.timeticks", FT_UINT64, BASE_DEC, | |||
3724 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3725 | { &hf_snmp_opaque_value, { | |||
3726 | "Value (Opaque)", "snmp.value.opaque", FT_BYTES, BASE_NONE, | |||
3727 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3728 | { &hf_snmp_objectname, { | |||
3729 | "Object Name", "snmp.name", FT_OID, BASE_NONE, | |||
3730 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3731 | { &hf_snmp_scalar_instance_index, { | |||
3732 | "Scalar Instance Index", "snmp.name.index", FT_UINT64, BASE_DEC, | |||
3733 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3734 | { &hf_snmp_var_bind_str, { | |||
3735 | "Variable-binding-string", "snmp.var-bind_str", FT_STRING, BASE_NONE, | |||
3736 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3737 | { &hf_snmp_agentid_trailer, { | |||
3738 | "AgentID Trailer", "snmp.agentid_trailer", FT_BYTES, BASE_NONE, | |||
3739 | NULL((void*)0), 0, NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3740 | ||||
3741 | ||||
3742 | { &hf_snmp_SMUX_PDUs_PDU, | |||
3743 | { "SMUX-PDUs", "snmp.SMUX_PDUs", | |||
3744 | FT_UINT32, BASE_DEC, VALS(snmp_SMUX_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_SMUX_PDUs_vals) ))), 0, | |||
3745 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3746 | { &hf_snmp_version, | |||
3747 | { "version", "snmp.version", | |||
3748 | FT_INT32, BASE_DEC, VALS(snmp_Version_vals)((0 ? (const struct _value_string*)0 : ((snmp_Version_vals))) ), 0, | |||
3749 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3750 | { &hf_snmp_community, | |||
3751 | { "community", "snmp.community", | |||
3752 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
3753 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3754 | { &hf_snmp_data, | |||
3755 | { "data", "snmp.data", | |||
3756 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
3757 | "PDUs", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3758 | { &hf_snmp_parameters, | |||
3759 | { "parameters", "snmp.parameters", | |||
3760 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3761 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3762 | { &hf_snmp_datav2u, | |||
3763 | { "datav2u", "snmp.datav2u", | |||
3764 | FT_UINT32, BASE_DEC, VALS(snmp_T_datav2u_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_datav2u_vals) ))), 0, | |||
3765 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3766 | { &hf_snmp_v2u_plaintext, | |||
3767 | { "plaintext", "snmp.plaintext", | |||
3768 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
3769 | "PDUs", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3770 | { &hf_snmp_encrypted, | |||
3771 | { "encrypted", "snmp.encrypted", | |||
3772 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3773 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3774 | { &hf_snmp_msgAuthoritativeEngineID, | |||
3775 | { "msgAuthoritativeEngineID", "snmp.msgAuthoritativeEngineID", | |||
3776 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3777 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3778 | { &hf_snmp_msgAuthoritativeEngineBoots, | |||
3779 | { "msgAuthoritativeEngineBoots", "snmp.msgAuthoritativeEngineBoots", | |||
3780 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3781 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3782 | { &hf_snmp_msgAuthoritativeEngineTime, | |||
3783 | { "msgAuthoritativeEngineTime", "snmp.msgAuthoritativeEngineTime", | |||
3784 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3785 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3786 | { &hf_snmp_msgUserName, | |||
3787 | { "msgUserName", "snmp.msgUserName", | |||
3788 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
3789 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3790 | { &hf_snmp_msgAuthenticationParameters, | |||
3791 | { "msgAuthenticationParameters", "snmp.msgAuthenticationParameters", | |||
3792 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3793 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3794 | { &hf_snmp_msgPrivacyParameters, | |||
3795 | { "msgPrivacyParameters", "snmp.msgPrivacyParameters", | |||
3796 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3797 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3798 | { &hf_snmp_msgVersion, | |||
3799 | { "msgVersion", "snmp.msgVersion", | |||
3800 | FT_INT32, BASE_DEC, VALS(snmp_Version_vals)((0 ? (const struct _value_string*)0 : ((snmp_Version_vals))) ), 0, | |||
3801 | "Version", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3802 | { &hf_snmp_msgGlobalData, | |||
3803 | { "msgGlobalData", "snmp.msgGlobalData_element", | |||
3804 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3805 | "HeaderData", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3806 | { &hf_snmp_msgSecurityParameters, | |||
3807 | { "msgSecurityParameters", "snmp.msgSecurityParameters", | |||
3808 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3809 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3810 | { &hf_snmp_msgData, | |||
3811 | { "msgData", "snmp.msgData", | |||
3812 | FT_UINT32, BASE_DEC, VALS(snmp_ScopedPduData_vals)((0 ? (const struct _value_string*)0 : ((snmp_ScopedPduData_vals )))), 0, | |||
3813 | "ScopedPduData", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3814 | { &hf_snmp_msgID, | |||
3815 | { "msgID", "snmp.msgID", | |||
3816 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3817 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3818 | { &hf_snmp_msgMaxSize, | |||
3819 | { "msgMaxSize", "snmp.msgMaxSize", | |||
3820 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3821 | "INTEGER_484_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3822 | { &hf_snmp_msgFlags, | |||
3823 | { "msgFlags", "snmp.msgFlags", | |||
3824 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3825 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3826 | { &hf_snmp_msgSecurityModel, | |||
3827 | { "msgSecurityModel", "snmp.msgSecurityModel", | |||
3828 | FT_UINT32, BASE_DEC, VALS(sec_models)((0 ? (const struct _value_string*)0 : ((sec_models)))), 0, | |||
3829 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3830 | { &hf_snmp_plaintext, | |||
3831 | { "plaintext", "snmp.plaintext_element", | |||
3832 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3833 | "ScopedPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3834 | { &hf_snmp_encryptedPDU, | |||
3835 | { "encryptedPDU", "snmp.encryptedPDU", | |||
3836 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3837 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3838 | { &hf_snmp_contextEngineID, | |||
3839 | { "contextEngineID", "snmp.contextEngineID", | |||
3840 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3841 | "SnmpEngineID", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3842 | { &hf_snmp_contextName, | |||
3843 | { "contextName", "snmp.contextName", | |||
3844 | FT_STRING, BASE_NONE, NULL((void*)0), 0, | |||
3845 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3846 | { &hf_snmp_get_request, | |||
3847 | { "get-request", "snmp.get_request_element", | |||
3848 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3849 | "GetRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3850 | { &hf_snmp_get_next_request, | |||
3851 | { "get-next-request", "snmp.get_next_request_element", | |||
3852 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3853 | "GetNextRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3854 | { &hf_snmp_get_response, | |||
3855 | { "get-response", "snmp.get_response_element", | |||
3856 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3857 | "GetResponse_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3858 | { &hf_snmp_set_request, | |||
3859 | { "set-request", "snmp.set_request_element", | |||
3860 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3861 | "SetRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3862 | { &hf_snmp_trap, | |||
3863 | { "trap", "snmp.trap_element", | |||
3864 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3865 | "Trap_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3866 | { &hf_snmp_getBulkRequest, | |||
3867 | { "getBulkRequest", "snmp.getBulkRequest_element", | |||
3868 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3869 | "GetBulkRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3870 | { &hf_snmp_informRequest, | |||
3871 | { "informRequest", "snmp.informRequest_element", | |||
3872 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3873 | "InformRequest_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3874 | { &hf_snmp_snmpV2_trap, | |||
3875 | { "snmpV2-trap", "snmp.snmpV2_trap_element", | |||
3876 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3877 | "SNMPv2_Trap_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3878 | { &hf_snmp_report, | |||
3879 | { "report", "snmp.report_element", | |||
3880 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3881 | "Report_PDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3882 | { &hf_snmp_request_id, | |||
3883 | { "request-id", "snmp.request_id", | |||
3884 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
3885 | "T_request_id", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3886 | { &hf_snmp_error_status, | |||
3887 | { "error-status", "snmp.error_status", | |||
3888 | FT_INT32, BASE_DEC, VALS(snmp_T_error_status_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_error_status_vals )))), 0, | |||
3889 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3890 | { &hf_snmp_error_index, | |||
3891 | { "error-index", "snmp.error_index", | |||
3892 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
3893 | "INTEGER", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3894 | { &hf_snmp_variable_bindings, | |||
3895 | { "variable-bindings", "snmp.variable_bindings", | |||
3896 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3897 | "VarBindList", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3898 | { &hf_snmp_bulkPDU_request_id, | |||
3899 | { "request-id", "snmp.request_id", | |||
3900 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
3901 | "Integer32", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3902 | { &hf_snmp_non_repeaters, | |||
3903 | { "non-repeaters", "snmp.non_repeaters", | |||
3904 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3905 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3906 | { &hf_snmp_max_repetitions, | |||
3907 | { "max-repetitions", "snmp.max_repetitions", | |||
3908 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3909 | "INTEGER_0_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3910 | { &hf_snmp_enterprise, | |||
3911 | { "enterprise", "snmp.enterprise", | |||
3912 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
3913 | "EnterpriseOID", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3914 | { &hf_snmp_agent_addr, | |||
3915 | { "agent-addr", "snmp.agent_addr", | |||
3916 | FT_IPv4, BASE_NONE, NULL((void*)0), 0, | |||
3917 | "NetworkAddress", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3918 | { &hf_snmp_generic_trap, | |||
3919 | { "generic-trap", "snmp.generic_trap", | |||
3920 | FT_INT32, BASE_DEC, VALS(snmp_GenericTrap_vals)((0 ? (const struct _value_string*)0 : ((snmp_GenericTrap_vals )))), 0, | |||
3921 | "GenericTrap", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3922 | { &hf_snmp_specific_trap, | |||
3923 | { "specific-trap", "snmp.specific_trap", | |||
3924 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
3925 | "SpecificTrap", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3926 | { &hf_snmp_time_stamp, | |||
3927 | { "time-stamp", "snmp.time_stamp", | |||
3928 | FT_UINT32, BASE_DEC, NULL((void*)0), 0, | |||
3929 | "TimeTicks", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3930 | { &hf_snmp_name, | |||
3931 | { "name", "snmp.name", | |||
3932 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
3933 | "ObjectName", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3934 | { &hf_snmp_valueType, | |||
3935 | { "valueType", "snmp.valueType_element", | |||
3936 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3937 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3938 | { &hf_snmp_VarBindList_item, | |||
3939 | { "VarBind", "snmp.VarBind_element", | |||
3940 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3941 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3942 | { &hf_snmp_open, | |||
3943 | { "open", "snmp.open", | |||
3944 | FT_UINT32, BASE_DEC, VALS(snmp_OpenPDU_vals)((0 ? (const struct _value_string*)0 : ((snmp_OpenPDU_vals))) ), 0, | |||
3945 | "OpenPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3946 | { &hf_snmp_close, | |||
3947 | { "close", "snmp.close", | |||
3948 | FT_INT32, BASE_DEC, VALS(snmp_ClosePDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_ClosePDU_U_vals )))), 0, | |||
3949 | "ClosePDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3950 | { &hf_snmp_registerRequest, | |||
3951 | { "registerRequest", "snmp.registerRequest_element", | |||
3952 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3953 | "RReqPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3954 | { &hf_snmp_registerResponse, | |||
3955 | { "registerResponse", "snmp.registerResponse", | |||
3956 | FT_UINT32, BASE_DEC, VALS(snmp_RegisterResponse_vals)((0 ? (const struct _value_string*)0 : ((snmp_RegisterResponse_vals )))), 0, | |||
3957 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3958 | { &hf_snmp_commitOrRollback, | |||
3959 | { "commitOrRollback", "snmp.commitOrRollback", | |||
3960 | FT_INT32, BASE_DEC, VALS(snmp_SOutPDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_SOutPDU_U_vals) ))), 0, | |||
3961 | "SOutPDU", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3962 | { &hf_snmp_rRspPDU, | |||
3963 | { "rRspPDU", "snmp.rRspPDU", | |||
3964 | FT_INT32, BASE_DEC, VALS(snmp_RRspPDU_U_vals)((0 ? (const struct _value_string*)0 : ((snmp_RRspPDU_U_vals) ))), 0, | |||
3965 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3966 | { &hf_snmp_pDUs, | |||
3967 | { "pDUs", "snmp.pDUs", | |||
3968 | FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals)((0 ? (const struct _value_string*)0 : ((snmp_PDUs_vals)))), 0, | |||
3969 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3970 | { &hf_snmp_smux_simple, | |||
3971 | { "smux-simple", "snmp.smux_simple_element", | |||
3972 | FT_NONE, BASE_NONE, NULL((void*)0), 0, | |||
3973 | "SimpleOpen", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3974 | { &hf_snmp_smux_version, | |||
3975 | { "smux-version", "snmp.smux_version", | |||
3976 | FT_INT32, BASE_DEC, VALS(snmp_T_smux_version_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_smux_version_vals )))), 0, | |||
3977 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3978 | { &hf_snmp_identity, | |||
3979 | { "identity", "snmp.identity", | |||
3980 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
3981 | "OBJECT_IDENTIFIER", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3982 | { &hf_snmp_description, | |||
3983 | { "description", "snmp.description", | |||
3984 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3985 | "DisplayString", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3986 | { &hf_snmp_password, | |||
3987 | { "password", "snmp.password", | |||
3988 | FT_BYTES, BASE_NONE, NULL((void*)0), 0, | |||
3989 | "OCTET_STRING", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3990 | { &hf_snmp_subtree, | |||
3991 | { "subtree", "snmp.subtree", | |||
3992 | FT_OID, BASE_NONE, NULL((void*)0), 0, | |||
3993 | "ObjectName", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3994 | { &hf_snmp_priority, | |||
3995 | { "priority", "snmp.priority", | |||
3996 | FT_INT32, BASE_DEC, NULL((void*)0), 0, | |||
3997 | "INTEGER_M1_2147483647", HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
3998 | { &hf_snmp_operation, | |||
3999 | { "operation", "snmp.operation", | |||
4000 | FT_INT32, BASE_DEC, VALS(snmp_T_operation_vals)((0 ? (const struct _value_string*)0 : ((snmp_T_operation_vals )))), 0, | |||
4001 | NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0) }}, | |||
4002 | }; | |||
4003 | ||||
4004 | /* List of subtrees */ | |||
4005 | static int *ett[] = { | |||
4006 | &ett_snmp, | |||
4007 | &ett_engineid, | |||
4008 | &ett_msgFlags, | |||
4009 | &ett_encryptedPDU, | |||
4010 | &ett_decrypted, | |||
4011 | &ett_authParameters, | |||
4012 | &ett_internet, | |||
4013 | &ett_varbind, | |||
4014 | &ett_name, | |||
4015 | &ett_value, | |||
4016 | &ett_decoding_error, | |||
4017 | &ett_snmp_Message, | |||
4018 | &ett_snmp_Messagev2u, | |||
4019 | &ett_snmp_T_datav2u, | |||
4020 | &ett_snmp_UsmSecurityParameters, | |||
4021 | &ett_snmp_SNMPv3Message, | |||
4022 | &ett_snmp_HeaderData, | |||
4023 | &ett_snmp_ScopedPduData, | |||
4024 | &ett_snmp_ScopedPDU, | |||
4025 | &ett_snmp_PDUs, | |||
4026 | &ett_snmp_PDU, | |||
4027 | &ett_snmp_BulkPDU, | |||
4028 | &ett_snmp_Trap_PDU_U, | |||
4029 | &ett_snmp_VarBind, | |||
4030 | &ett_snmp_VarBindList, | |||
4031 | &ett_snmp_SMUX_PDUs, | |||
4032 | &ett_snmp_RegisterResponse, | |||
4033 | &ett_snmp_OpenPDU, | |||
4034 | &ett_snmp_SimpleOpen_U, | |||
4035 | &ett_snmp_RReqPDU_U, | |||
4036 | }; | |||
4037 | static ei_register_info ei[] = { | |||
4038 | { &ei_snmp_failed_decrypted_data_pdu, { "snmp.failed_decrypted_data_pdu", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Failed to decrypt encryptedPDU", EXPFILL0, ((void*)0), 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_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, {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_verify_authentication_error, { "snmp.verify_authentication_error", PI_MALFORMED0x07000000, PI_ERROR0x00800000, "Error while verifying Message authenticity", EXPFILL0, ((void*)0), 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_ok, { "snmp.authentication_ok", PI_CHECKSUM0x01000000, PI_CHAT0x00200000, "SNMP Authentication OK", EXPFILL0, ((void*)0), 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_authentication_error, { "snmp.authentication_error", PI_CHECKSUM0x01000000, PI_WARN0x00600000, "SNMP Authentication Error", EXPFILL0, ((void*)0), 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_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, {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_varbind_has_indicator, { "snmp.varbind.has_indicator", PI_MALFORMED0x07000000, PI_WARN0x00600000, "VarBind has indicator set", EXPFILL0, ((void*)0), 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_not_oid, { "snmp.objectname_not_oid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "ObjectName not an OID", EXPFILL0, ((void*)0), 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_objectname_has_indicator, { "snmp.objectname_has_indicator", PI_MALFORMED0x07000000, PI_WARN0x00600000, "ObjectName has indicator set", EXPFILL0, ((void*)0), 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_value_not_primitive_encoding, { "snmp.value_not_primitive_encoding", PI_MALFORMED0x07000000, PI_WARN0x00600000, "value not in primitive encoding", EXPFILL0, ((void*)0), 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_invalid_oid, { "snmp.invalid_oid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "invalid oid", EXPFILL0, ((void*)0), 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_wrong_tag, { "snmp.varbind.wrong_tag", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong tag for SNMP VarBind error value", EXPFILL0, ((void*)0), 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_varbind_response, { "snmp.varbind.response", PI_RESPONSE_CODE0x03000000, PI_NOTE0x00400000, "Response", EXPFILL0, ((void*)0), 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_no_instance_subid, { "snmp.no_instance_subid", PI_MALFORMED0x07000000, PI_WARN0x00600000, "No instance sub-id in scalar value", EXPFILL0, ((void*)0), 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_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, {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_index_suboid_too_short, { "snmp.index_suboid_too_short", PI_MALFORMED0x07000000, PI_WARN0x00600000, "index sub-oid shorter than expected", EXPFILL0, ((void*)0), 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_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, {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_len0, { "snmp.ndex_suboid_len0", PI_MALFORMED0x07000000, PI_WARN0x00600000, "an index sub-oid OID cannot be 0 bytes long!", EXPFILL0, ((void*)0), 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_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, {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_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, {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_column_parent_not_row, { "snmp.column_parent_not_row", PI_MALFORMED0x07000000, PI_ERROR0x00800000, "COLUMNS's parent is not a ROW", EXPFILL0, ((void*)0), 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_uint_too_large, { "snmp.uint_too_large", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Unsigned integer value > 2^64 - 1", EXPFILL0, ((void*)0), 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_int_too_large, { "snmp.int_too_large", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Signed integer value > 2^63 - 1 or <= -2^63", EXPFILL0, ((void*)0), 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_integral_value0, { "snmp.integral_value0", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Integral value is zero-length", EXPFILL0, ((void*)0), 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_missing_mib, { "snmp.missing_mib", PI_UNDECODED0x05000000, PI_NOTE0x00400000, "Unresolved value, Missing MIB", EXPFILL0, ((void*)0), 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_length_value, { "snmp.varbind.wrong_length_value", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong length for SNMP VarBind/value", EXPFILL0, ((void*)0), 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_varbind_wrong_class_tag, { "snmp.varbind.wrong_class_tag", PI_MALFORMED0x07000000, PI_WARN0x00600000, "Wrong class/tag for SNMP VarBind/value", EXPFILL0, ((void*)0), 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_rfc1910_non_conformant, { "snmp.rfc1910_non_conformant", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Data not conforming to RFC1910", EXPFILL0, ((void*)0), 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_rfc3411_non_conformant, { "snmp.rfc3411_non_conformant", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Data not conforming to RFC3411", EXPFILL0, ((void*)0), 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_version_unknown, { "snmp.version.unknown", PI_PROTOCOL0x09000000, PI_WARN0x00600000, "Unknown version", EXPFILL0, ((void*)0), 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 | { &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, {0, {((void*)0), ((void*)0), FT_NONE, BASE_NONE , ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE, -1, ((void *)0)}} }}, | |||
4069 | ||||
4070 | }; | |||
4071 | ||||
4072 | expert_module_t* expert_snmp; | |||
4073 | module_t *snmp_module; | |||
4074 | ||||
4075 | static uat_field_t users_fields[] = { | |||
4076 | 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)}, | |||
4077 | 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)}, | |||
4078 | 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)}, | |||
4079 | 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)}, | |||
4080 | 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)}, | |||
4081 | 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)}, | |||
4082 | 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)}, | |||
4083 | UAT_END_FIELDS{((void*)0),((void*)0),PT_TXTMOD_NONE,{0,0,0},{0,0,0},0,0,((void *)0)} | |||
4084 | }; | |||
4085 | ||||
4086 | uat_t *assocs_uat = uat_new("SNMP Users", | |||
4087 | sizeof(snmp_ue_assoc_t), | |||
4088 | "snmp_users", | |||
4089 | true1, | |||
4090 | &ueas, | |||
4091 | &num_ueas, | |||
4092 | UAT_AFFECTS_DISSECTION0x00000001, /* affects dissection of packets, but not set of named fields */ | |||
4093 | "ChSNMPUsersSection", | |||
4094 | snmp_users_copy_cb, | |||
4095 | snmp_users_update_cb, | |||
4096 | snmp_users_free_cb, | |||
4097 | renew_ue_cache, | |||
4098 | NULL((void*)0), | |||
4099 | users_fields); | |||
4100 | ||||
4101 | static const char *assocs_uat_defaults[] = { | |||
4102 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), "draft-reeder-snmpv3-usm-3desede-00"}; | |||
4103 | uat_set_default_values(assocs_uat, assocs_uat_defaults); | |||
4104 | ||||
4105 | static uat_field_t specific_traps_flds[] = { | |||
4106 | 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)}, | |||
4107 | 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)}, | |||
4108 | 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)}, | |||
4109 | UAT_END_FIELDS{((void*)0),((void*)0),PT_TXTMOD_NONE,{0,0,0},{0,0,0},0,0,((void *)0)} | |||
4110 | }; | |||
4111 | ||||
4112 | uat_t* specific_traps_uat = uat_new("SNMP Enterprise Specific Trap Types", | |||
4113 | sizeof(snmp_st_assoc_t), | |||
4114 | "snmp_specific_traps", | |||
4115 | true1, | |||
4116 | &specific_traps, | |||
4117 | &num_specific_traps, | |||
4118 | UAT_AFFECTS_DISSECTION0x00000001, /* affects dissection of packets, but not set of named fields */ | |||
4119 | "ChSNMPEnterpriseSpecificTrapTypes", | |||
4120 | snmp_specific_trap_copy_cb, | |||
4121 | NULL((void*)0), | |||
4122 | snmp_specific_trap_free_cb, | |||
4123 | NULL((void*)0), | |||
4124 | NULL((void*)0), | |||
4125 | specific_traps_flds); | |||
4126 | ||||
4127 | /* Register protocol */ | |||
4128 | proto_snmp = proto_register_protocol(PNAME"Simple Network Management Protocol", PSNAME"SNMP", PFNAME"snmp"); | |||
4129 | snmp_handle = register_dissector("snmp", dissect_snmp, proto_snmp); | |||
4130 | ||||
4131 | /* Register fields and subtrees */ | |||
4132 | proto_register_field_array(proto_snmp, hf, array_length(hf)(sizeof (hf) / sizeof (hf)[0])); | |||
4133 | proto_register_subtree_array(ett, array_length(ett)(sizeof (ett) / sizeof (ett)[0])); | |||
4134 | expert_snmp = expert_register_protocol(proto_snmp); | |||
4135 | expert_register_field_array(expert_snmp, ei, array_length(ei)(sizeof (ei) / sizeof (ei)[0])); | |||
4136 | ||||
4137 | /* Register dissector */ | |||
4138 | snmp_tcp_handle = register_dissector("snmp.tcp", dissect_snmp_tcp, proto_snmp); | |||
4139 | ||||
4140 | /* Register configuration preferences */ | |||
4141 | snmp_module = prefs_register_protocol(proto_snmp, process_prefs); | |||
4142 | prefs_register_bool_preference(snmp_module, "display_oid", | |||
4143 | "Show SNMP OID in info column", | |||
4144 | "Whether the SNMP OID should be shown in the info column", | |||
4145 | &display_oid); | |||
4146 | ||||
4147 | prefs_register_obsolete_preference(snmp_module, "mib_modules"); | |||
4148 | prefs_register_obsolete_preference(snmp_module, "users_file"); | |||
4149 | ||||
4150 | prefs_register_bool_preference(snmp_module, "desegment", | |||
4151 | "Reassemble SNMP-over-TCP messages spanning multiple TCP segments", | |||
4152 | "Whether the SNMP dissector should reassemble messages spanning multiple TCP segments." | |||
4153 | " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.", | |||
4154 | &snmp_desegment); | |||
4155 | ||||
4156 | prefs_register_bool_preference(snmp_module, "var_in_tree", | |||
4157 | "Display dissected variables inside SNMP tree", | |||
4158 | "ON - display dissected variables inside SNMP tree, OFF - display dissected variables in root tree after SNMP", | |||
4159 | &snmp_var_in_tree); | |||
4160 | ||||
4161 | prefs_register_uat_preference(snmp_module, "users_table", | |||
4162 | "Users Table", | |||
4163 | "Table of engine-user associations used for authentication and decryption", | |||
4164 | assocs_uat); | |||
4165 | ||||
4166 | prefs_register_uat_preference(snmp_module, "specific_traps_table", | |||
4167 | "Enterprise Specific Trap Types", | |||
4168 | "Table of enterprise specific-trap type descriptions", | |||
4169 | specific_traps_uat); | |||
4170 | ||||
4171 | #ifdef HAVE_LIBSMI1 | |||
4172 | prefs_register_static_text_preference(snmp_module, "info_mibs", | |||
4173 | "MIB settings can be changed in the Name Resolution preferences", | |||
4174 | "MIB settings can be changed in the Name Resolution preferences"); | |||
4175 | #endif | |||
4176 | ||||
4177 | value_sub_dissectors_table = register_dissector_table("snmp.variable_oid","SNMP Variable OID", proto_snmp, FT_STRING, STRING_CASE_SENSITIVE0); | |||
4178 | ||||
4179 | register_init_routine(init_ue_cache); | |||
4180 | register_cleanup_routine(cleanup_ue_cache); | |||
4181 | ||||
4182 | register_ber_syntax_dissector("SNMP", proto_snmp, dissect_snmp_tcp); | |||
4183 | ||||
4184 | snmp_tap=register_tap("snmp"); | |||
4185 | ||||
4186 | register_srt_table(proto_snmp, NULL((void*)0), 1, snmpstat_packet, snmpstat_init, NULL((void*)0)); | |||
4187 | } | |||
4188 | ||||
4189 | ||||
4190 | /*--- proto_reg_handoff_snmp ---------------------------------------*/ | |||
4191 | void proto_reg_handoff_snmp(void) { | |||
4192 | ||||
4193 | dissector_add_uint_with_preference("udp.port", UDP_PORT_SNMP161, snmp_handle); | |||
4194 | dissector_add_uint("ethertype", ETHERTYPE_SNMP0x814C, snmp_handle); | |||
4195 | dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_AGENT0x900F, snmp_handle); | |||
4196 | dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_SINK0x9010, snmp_handle); | |||
4197 | dissector_add_uint("hpext.dxsap", HPEXT_SNMP0x165A, snmp_handle); | |||
4198 | ||||
4199 | dissector_add_uint_with_preference("tcp.port", TCP_PORT_SNMP161, snmp_tcp_handle); | |||
4200 | /* Since "regular" SNMP port and "trap" SNMP port use the same handler, | |||
4201 | the "trap" port doesn't really need a separate preference. Just register | |||
4202 | normally */ | |||
4203 | dissector_add_uint("tcp.port", TCP_PORT_SNMP_TRAP162, snmp_tcp_handle); | |||
4204 | dissector_add_uint("udp.port", UDP_PORT_SNMP_TRAP162, snmp_handle); | |||
4205 | dissector_add_uint("udp.port", UDP_PORT_SNMP_PATROL8161, snmp_handle); | |||
4206 | ||||
4207 | data_handle = find_dissector("data"); | |||
4208 | ||||
4209 | /* SNMPv2-MIB sysDescr "1.3.6.1.2.1.1.1.0" */ | |||
4210 | dissector_add_string("snmp.variable_oid", "1.3.6.1.2.1.1.1.0", | |||
4211 | create_dissector_handle(dissect_snmp_variable_string, proto_snmp)); | |||
4212 | /* SNMPv2-MIB::sysName.0 (1.3.6.1.2.1.1.5.0) */ | |||
4213 | dissector_add_string("snmp.variable_oid", "1.3.6.1.2.1.1.5.0", | |||
4214 | create_dissector_handle(dissect_snmp_variable_string, proto_snmp)); | |||
4215 | ||||
4216 | /* | |||
4217 | * Process preference settings. | |||
4218 | * | |||
4219 | * We can't do this in the register routine, as preferences aren't | |||
4220 | * read until all dissector register routines have been called (so | |||
4221 | * that all dissector preferences have been registered). | |||
4222 | */ | |||
4223 | process_prefs(); | |||
4224 | ||||
4225 | } | |||
4226 | ||||
4227 | void | |||
4228 | proto_register_smux(void) | |||
4229 | { | |||
4230 | static int *ett[] = { | |||
4231 | &ett_smux, | |||
4232 | }; | |||
4233 | ||||
4234 | proto_smux = proto_register_protocol("SNMP Multiplex Protocol", | |||
4235 | "SMUX", "smux"); | |||
4236 | ||||
4237 | proto_register_subtree_array(ett, array_length(ett)(sizeof (ett) / sizeof (ett)[0])); | |||
4238 | ||||
4239 | smux_handle = register_dissector("smux", dissect_smux, proto_smux); | |||
4240 | } | |||
4241 | ||||
4242 | void | |||
4243 | proto_reg_handoff_smux(void) | |||
4244 | { | |||
4245 | dissector_add_uint_with_preference("tcp.port", TCP_PORT_SMUX199, smux_handle); | |||
4246 | } | |||
4247 | ||||
4248 | /* | |||
4249 | * Editor modelines - https://www.wireshark.org/tools/modelines.html | |||
4250 | * | |||
4251 | * Local variables: | |||
4252 | * c-basic-offset: 8 | |||
4253 | * tab-width: 8 | |||
4254 | * indent-tabs-mode: t | |||
4255 | * End: | |||
4256 | * | |||
4257 | * vi: set shiftwidth=8 tabstop=8 noexpandtab: | |||
4258 | * :indentSize=8:tabSize=8:noTabs=false: | |||
4259 | */ |