1 /* Do not modify this file. */
2 /* It is created automatically by the ASN.1 to Wireshark dissector compiler */
4 /* ../../tools/asn2wrs.py -b -p snmp -c ./snmp.cnf -s ./packet-snmp-template -D . snmp.asn */
6 /* Input file: packet-snmp-template.c */
8 #line 1 "packet-snmp-template.c"
10 * Routines for SNMP (simple network management protocol)
11 * Copyright (C) 1998 Didier Jorand
13 * See RFC 1157 for SNMPv1.
15 * See RFCs 1901, 1905, and 1906 for SNMPv2c.
17 * See RFCs 1905, 1906, 1909, and 1910 for SNMPv2u [historic].
19 * See RFCs 2570-2576 for SNMPv3
20 * Updated to use the asn2wrs compiler made by Tomas Kukosa
21 * Copyright (C) 2005 - 2006 Anders Broman [AT] ericsson.com
23 * See RFC 3414 for User-based Security Model for SNMPv3
24 * See RFC 3826 for (AES) Cipher Algorithm in the SNMP USM
25 * See RFC 2578 for Structure of Management Information Version 2 (SMIv2)
26 * Copyright (C) 2007 Luis E. Garcia Ontanon <luis@ontanon.org>
30 * Wireshark - Network traffic analyzer
31 * By Gerald Combs <gerald@wireshark.org>
32 * Copyright 1998 Gerald Combs
36 * GXSNMP -- An snmp mangament application
37 * Copyright (C) 1998 Gregory McLean & Jochen Friedrich
38 * Beholder RMON ethernet network monitor,Copyright (C) 1993 DNPAP group
40 * This program is free software; you can redistribute it and/or
41 * modify it under the terms of the GNU General Public License
42 * as published by the Free Software Foundation; either version 2
43 * of the License, or (at your option) any later version.
45 * This program is distributed in the hope that it will be useful,
46 * but WITHOUT ANY WARRANTY; without even the implied warranty of
47 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
48 * GNU General Public License for more details.
50 * You should have received a copy of the GNU General Public License
51 * along with this program; if not, write to the Free Software
52 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
55 #define D(args) do {printf args; fflush(stdout); } while(0)
67 #include <epan/packet.h>
68 #include <epan/strutil.h>
69 #include <epan/conversation.h>
70 #include <epan/etypes.h>
71 #include <epan/prefs.h>
72 #include <epan/sminmpec.h>
73 #include <epan/emem.h>
74 #include <epan/next_tvb.h>
76 #include <epan/asn1.h>
77 #include "packet-ipx.h"
78 #include "packet-hpext.h"
81 #include "packet-ber.h"
83 #include "packet-snmp.h"
85 #include <epan/crypt/crypt-sha1.h>
86 #include <epan/crypt/crypt-md5.h>
87 #include <epan/expert.h>
88 #include <epan/report_err.h>
89 #include <epan/oids.h>
94 #include <winposixtype.h>
99 /* Take a pointer that may be null and return a pointer that's not null
100 by turning null pointers into pointers to the above null string,
101 and, if the argument pointer wasn't null, make sure we handle
102 non-printable characters in the string by escaping them. */
103 #define SAFE_STRING(s, l) (((s) != NULL) ? format_text((s), (l)) : "")
105 #define PNAME "Simple Network Management Protocol"
106 #define PSNAME "SNMP"
107 #define PFNAME "snmp"
109 #define UDP_PORT_SNMP 161
110 #define UDP_PORT_SNMP_TRAP 162
111 #define TCP_PORT_SNMP 161
112 #define TCP_PORT_SNMP_TRAP 162
113 #define TCP_PORT_SMUX 199
114 #define UDP_PORT_SNMP_PATROL 8161
116 /* Initialize the protocol and registered fields */
117 static int proto_snmp = -1;
118 static int proto_smux = -1;
120 static gboolean display_oid = TRUE;
121 static gboolean snmp_var_in_tree = TRUE;
123 static gboolean snmp_usm_auth_md5(snmp_usm_params_t* p, guint8**, guint*, gchar const**);
124 static gboolean snmp_usm_auth_sha1(snmp_usm_params_t* p, guint8**, guint*, gchar const**);
126 static tvbuff_t* snmp_usm_priv_des(snmp_usm_params_t*, tvbuff_t*, gchar const**);
127 static tvbuff_t* snmp_usm_priv_aes(snmp_usm_params_t*, tvbuff_t*, gchar const**);
130 static void snmp_usm_password_to_key_md5(const guint8 *password, guint passwordlen, const guint8 *engineID, guint engineLength, guint8 *key);
131 static void snmp_usm_password_to_key_sha1(const guint8 *password, guint passwordlen, const guint8 *engineID, guint engineLength, guint8 *key);
134 static snmp_usm_auth_model_t model_md5 = {snmp_usm_password_to_key_md5, snmp_usm_auth_md5, 16};
135 static snmp_usm_auth_model_t model_sha1 = {snmp_usm_password_to_key_sha1, snmp_usm_auth_sha1, 20};
137 static const value_string auth_types[] = {
142 static snmp_usm_auth_model_t* auth_models[] = {&model_md5,&model_sha1};
145 static const value_string priv_types[] = {
150 static snmp_usm_decoder_t priv_protos[] = {snmp_usm_priv_des, snmp_usm_priv_aes};
152 static snmp_ue_assoc_t* ueas = NULL;
153 static guint num_ueas = 0;
154 static uat_t* assocs_uat = NULL;
155 static snmp_ue_assoc_t* localized_ues = NULL;
156 static snmp_ue_assoc_t* unlocalized_ues = NULL;
161 static snmp_usm_params_t usm_p = {FALSE,FALSE,0,0,0,0,NULL,NULL,NULL,NULL,NULL,NULL,NULL,FALSE};
164 #define TH_CRYPT 0x02
165 #define TH_REPORT 0x04
167 /* desegmentation of SNMP-over-TCP */
168 static gboolean snmp_desegment = TRUE;
170 /* Global variables */
172 guint32 MsgSecurityModel;
173 tvbuff_t *oid_tvb=NULL;
174 tvbuff_t *value_tvb=NULL;
176 static dissector_handle_t snmp_handle;
177 static dissector_handle_t data_handle;
179 static next_tvb_list_t var_list;
181 static int hf_snmp_v3_flags_auth = -1;
182 static int hf_snmp_v3_flags_crypt = -1;
183 static int hf_snmp_v3_flags_report = -1;
185 static int hf_snmp_engineid_conform = -1;
186 static int hf_snmp_engineid_enterprise = -1;
187 static int hf_snmp_engineid_format = -1;
188 static int hf_snmp_engineid_ipv4 = -1;
189 static int hf_snmp_engineid_ipv6 = -1;
190 static int hf_snmp_engineid_mac = -1;
191 static int hf_snmp_engineid_text = -1;
192 static int hf_snmp_engineid_time = -1;
193 static int hf_snmp_engineid_data = -1;
194 static int hf_snmp_decryptedPDU = -1;
195 static int hf_snmp_msgAuthentication = -1;
197 static int hf_snmp_noSuchObject = -1;
198 static int hf_snmp_noSuchInstance = -1;
199 static int hf_snmp_endOfMibView = -1;
200 static int hf_snmp_unSpecified = -1;
202 static int hf_snmp_integer32_value = -1;
203 static int hf_snmp_octetstring_value = -1;
204 static int hf_snmp_oid_value = -1;
205 static int hf_snmp_null_value = -1;
206 static int hf_snmp_ipv4_value = -1;
207 static int hf_snmp_ipv6_value = -1;
208 static int hf_snmp_anyaddress_value = -1;
209 static int hf_snmp_unsigned32_value = -1;
210 static int hf_snmp_unknown_value = -1;
211 static int hf_snmp_opaque_value = -1;
212 static int hf_snmp_nsap_value = -1;
213 static int hf_snmp_counter_value = -1;
214 static int hf_snmp_timeticks_value = -1;
215 static int hf_snmp_big_counter_value = -1;
216 static int hf_snmp_gauge32_value = -1;
218 static int hf_snmp_objectname = -1;
219 static int hf_snmp_scalar_instance_index = -1;
223 /*--- Included file: packet-snmp-hf.c ---*/
224 #line 1 "packet-snmp-hf.c"
225 static int hf_snmp_SMUX_PDUs_PDU = -1; /* SMUX_PDUs */
226 static int hf_snmp_version = -1; /* Version */
227 static int hf_snmp_community = -1; /* OCTET_STRING */
228 static int hf_snmp_data = -1; /* PDUs */
229 static int hf_snmp_parameters = -1; /* OCTET_STRING */
230 static int hf_snmp_datav2u = -1; /* T_datav2u */
231 static int hf_snmp_v2u_plaintext = -1; /* PDUs */
232 static int hf_snmp_encrypted = -1; /* OCTET_STRING */
233 static int hf_snmp_msgAuthoritativeEngineID = -1; /* T_msgAuthoritativeEngineID */
234 static int hf_snmp_msgAuthoritativeEngineBoots = -1; /* T_msgAuthoritativeEngineBoots */
235 static int hf_snmp_msgAuthoritativeEngineTime = -1; /* T_msgAuthoritativeEngineTime */
236 static int hf_snmp_msgUserName = -1; /* T_msgUserName */
237 static int hf_snmp_msgAuthenticationParameters = -1; /* T_msgAuthenticationParameters */
238 static int hf_snmp_msgPrivacyParameters = -1; /* T_msgPrivacyParameters */
239 static int hf_snmp_msgVersion = -1; /* Version */
240 static int hf_snmp_msgGlobalData = -1; /* HeaderData */
241 static int hf_snmp_msgSecurityParameters = -1; /* T_msgSecurityParameters */
242 static int hf_snmp_msgData = -1; /* ScopedPduData */
243 static int hf_snmp_msgID = -1; /* INTEGER_0_2147483647 */
244 static int hf_snmp_msgMaxSize = -1; /* INTEGER_484_2147483647 */
245 static int hf_snmp_msgFlags = -1; /* T_msgFlags */
246 static int hf_snmp_msgSecurityModel = -1; /* T_msgSecurityModel */
247 static int hf_snmp_plaintext = -1; /* ScopedPDU */
248 static int hf_snmp_encryptedPDU = -1; /* T_encryptedPDU */
249 static int hf_snmp_contextEngineID = -1; /* SnmpEngineID */
250 static int hf_snmp_contextName = -1; /* OCTET_STRING */
251 static int hf_snmp_get_request = -1; /* GetRequest_PDU */
252 static int hf_snmp_get_next_request = -1; /* GetNextRequest_PDU */
253 static int hf_snmp_get_response = -1; /* GetResponse_PDU */
254 static int hf_snmp_set_request = -1; /* SetRequest_PDU */
255 static int hf_snmp_trap = -1; /* Trap_PDU */
256 static int hf_snmp_getBulkRequest = -1; /* GetBulkRequest_PDU */
257 static int hf_snmp_informRequest = -1; /* InformRequest_PDU */
258 static int hf_snmp_sNMPv2_Trap = -1; /* SNMPv2_Trap_PDU */
259 static int hf_snmp_report = -1; /* Report_PDU */
260 static int hf_snmp_request_id = -1; /* INTEGER */
261 static int hf_snmp_error_status = -1; /* T_error_status */
262 static int hf_snmp_error_index = -1; /* INTEGER */
263 static int hf_snmp_variable_bindings = -1; /* VarBindList */
264 static int hf_snmp_bulkPDU_request_id = -1; /* Integer32 */
265 static int hf_snmp_non_repeaters = -1; /* INTEGER_0_2147483647 */
266 static int hf_snmp_max_repetitions = -1; /* INTEGER_0_2147483647 */
267 static int hf_snmp_enterprise = -1; /* EnterpriseOID */
268 static int hf_snmp_agent_addr = -1; /* NetworkAddress */
269 static int hf_snmp_generic_trap = -1; /* T_generic_trap */
270 static int hf_snmp_specific_trap = -1; /* INTEGER */
271 static int hf_snmp_time_stamp = -1; /* TimeTicks */
272 static int hf_snmp_name = -1; /* ObjectName */
273 static int hf_snmp_valueType = -1; /* NULL */
274 static int hf_snmp_VarBindList_item = -1; /* VarBind */
275 static int hf_snmp_open = -1; /* OpenPDU */
276 static int hf_snmp_close = -1; /* ClosePDU */
277 static int hf_snmp_registerRequest = -1; /* RReqPDU */
278 static int hf_snmp_registerResponse = -1; /* RegisterResponse */
279 static int hf_snmp_commitOrRollback = -1; /* SOutPDU */
280 static int hf_snmp_rRspPDU = -1; /* RRspPDU */
281 static int hf_snmp_pDUs = -1; /* PDUs */
282 static int hf_snmp_smux_simple = -1; /* SimpleOpen */
283 static int hf_snmp_smux_version = -1; /* T_smux_version */
284 static int hf_snmp_identity = -1; /* OBJECT_IDENTIFIER */
285 static int hf_snmp_description = -1; /* DisplayString */
286 static int hf_snmp_password = -1; /* OCTET_STRING */
287 static int hf_snmp_subtree = -1; /* ObjectName */
288 static int hf_snmp_priority = -1; /* INTEGER_M1_2147483647 */
289 static int hf_snmp_operation = -1; /* T_operation */
291 /*--- End of included file: packet-snmp-hf.c ---*/
292 #line 215 "packet-snmp-template.c"
294 static int hf_smux_version = -1;
295 static int hf_smux_pdutype = -1;
297 /* Initialize the subtree pointers */
298 static gint ett_smux = -1;
299 static gint ett_snmp = -1;
300 static gint ett_engineid = -1;
301 static gint ett_msgFlags = -1;
302 static gint ett_encryptedPDU = -1;
303 static gint ett_decrypted = -1;
304 static gint ett_authParameters = -1;
305 static gint ett_internet = -1;
306 static gint ett_varbind = -1;
307 static gint ett_name = -1;
308 static gint ett_value = -1;
309 static gint ett_decoding_error = -1;
312 /*--- Included file: packet-snmp-ett.c ---*/
313 #line 1 "packet-snmp-ett.c"
314 static gint ett_snmp_Message = -1;
315 static gint ett_snmp_Messagev2u = -1;
316 static gint ett_snmp_T_datav2u = -1;
317 static gint ett_snmp_UsmSecurityParameters = -1;
318 static gint ett_snmp_SNMPv3Message = -1;
319 static gint ett_snmp_HeaderData = -1;
320 static gint ett_snmp_ScopedPduData = -1;
321 static gint ett_snmp_ScopedPDU = -1;
322 static gint ett_snmp_PDUs = -1;
323 static gint ett_snmp_PDU = -1;
324 static gint ett_snmp_BulkPDU = -1;
325 static gint ett_snmp_Trap_PDU_U = -1;
326 static gint ett_snmp_VarBind = -1;
327 static gint ett_snmp_VarBindList = -1;
328 static gint ett_snmp_SMUX_PDUs = -1;
329 static gint ett_snmp_RegisterResponse = -1;
330 static gint ett_snmp_OpenPDU = -1;
331 static gint ett_snmp_SimpleOpen_U = -1;
332 static gint ett_snmp_RReqPDU_U = -1;
334 /*--- End of included file: packet-snmp-ett.c ---*/
335 #line 234 "packet-snmp-template.c"
337 static const true_false_string auth_flags = {
342 /* Security Models */
344 #define SNMP_SEC_ANY 0
345 #define SNMP_SEC_V1 1
346 #define SNMP_SEC_V2C 2
347 #define SNMP_SEC_USM 3
349 static const value_string sec_models[] = {
350 { SNMP_SEC_ANY, "Any" },
351 { SNMP_SEC_V1, "V1" },
352 { SNMP_SEC_V2C, "V2C" },
353 { SNMP_SEC_USM, "USM" },
358 #define SMUX_MSG_OPEN 0
359 #define SMUX_MSG_CLOSE 1
360 #define SMUX_MSG_RREQ 2
361 #define SMUX_MSG_RRSP 3
362 #define SMUX_MSG_SOUT 4
364 static const value_string smux_types[] = {
365 { SMUX_MSG_OPEN, "Open" },
366 { SMUX_MSG_CLOSE, "Close" },
367 { SMUX_MSG_RREQ, "Registration Request" },
368 { SMUX_MSG_RRSP, "Registration Response" },
369 { SMUX_MSG_SOUT, "Commit Or Rollback" },
374 #define SNMP_IPA 0 /* IP Address */
375 #define SNMP_CNT 1 /* Counter (Counter32) */
376 #define SNMP_GGE 2 /* Gauge (Gauge32) */
377 #define SNMP_TIT 3 /* TimeTicks */
378 #define SNMP_OPQ 4 /* Opaque */
379 #define SNMP_NSP 5 /* NsapAddress */
380 #define SNMP_C64 6 /* Counter64 */
381 #define SNMP_U32 7 /* Uinteger32 */
388 dissector_table_t value_sub_dissectors_table;
391 * dissect_snmp_VarBind
392 * this routine dissects variable bindings, looking for the oid information in our oid reporsitory
393 * to format and add the value adequatelly.
395 * The choice to handwrite this code instead of using the asn compiler is to avoid having tons
396 * of uses of global variables distributed in very different parts of the code.
397 * Other than that there's a cosmetic thing: the tree from ASN generated code would be so
398 * convoluted due to the nesting of CHOICEs in the definition of VarBind/value.
400 * XXX: the length of this function (~400 lines) is an aberration!
401 * oid_key_t:key_type could become a series of callbacks instead of an enum
402 * the (! oid_info_is_ok) switch could be made into an array (would be slower)
405 NetworkAddress ::= CHOICE { internet IpAddress }
406 IpAddress ::= [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4))
407 TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295)
408 Integer32 ::= INTEGER (-2147483648..2147483647)
409 ObjectName ::= OBJECT IDENTIFIER
410 Counter32 ::= [APPLICATION 1] IMPLICIT INTEGER (0..4294967295)
411 Gauge32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295)
412 Unsigned32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295)
413 Integer-value ::= INTEGER (-2147483648..2147483647)
414 Integer32 ::= INTEGER (-2147483648..2147483647)
415 ObjectID-value ::= OBJECT IDENTIFIER
417 TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295)
418 Opaque ::= [APPLICATION 4] IMPLICIT OCTET STRING
419 Counter64 ::= [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615)
421 ObjectSyntax ::= CHOICE {
423 application-wide ApplicationSyntax
426 SimpleSyntax ::= CHOICE {
427 integer-value Integer-value,
428 string-value String-value,
429 objectID-value ObjectID-value,
433 ApplicationSyntax ::= CHOICE {
434 ipAddress-value IpAddress,
435 counter-value Counter32,
436 timeticks-value TimeTicks,
437 arbitrary-value Opaque,
438 big-counter-value Counter64,
439 unsigned-integer-value Unsigned32
442 ValueType ::= CHOICE {
445 noSuchObject[0] IMPLICIT NULL,
446 noSuchInstance[1] IMPLICIT NULL,
447 endOfMibView[2] IMPLICIT NULL
450 VarBind ::= SEQUENCE {
457 extern int dissect_snmp_VarBind(gboolean implicit_tag _U_,
463 int seq_offset, name_offset, value_offset, value_start;
464 guint32 seq_len, name_len, value_len;
471 oid_info_t* oid_info = NULL;
472 guint oid_matched, oid_left;
473 proto_item *pi_name, *pi_varbind, *pi_value = NULL;
474 proto_tree *pt, *pt_varbind, *pt_name, *pt_value;
475 char label[ITEM_LABEL_LENGTH];
477 const char* info_oid = NULL;
480 int min_len = 0, max_len = 0;
481 gboolean oid_info_is_ok;
482 const char* oid_string = NULL;
483 enum {BER_NO_ERROR, BER_WRONG_LENGTH, BER_WRONG_TAG} format_error = BER_NO_ERROR;
487 /* first have the VarBind's sequence header */
488 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
489 offset = get_ber_length(tvb, offset, &seq_len, &ind);
491 seq_len += offset - seq_offset;
493 if (!pc && ber_class==BER_CLASS_UNI && tag==BER_UNI_TAG_SEQUENCE) {
494 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"VarBind must be an universal class sequence");
495 pt = proto_item_add_subtree(pi,ett_decoding_error);
496 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "VarBind is not an universal class sequence");
497 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
501 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"Indicator must be clear in VarBind");
502 pt = proto_item_add_subtree(pi,ett_decoding_error);
503 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "VarBind has indicator set");
504 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
507 /* then we have the ObjectName's header */
509 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
510 name_offset = offset = get_ber_length(tvb, offset, &name_len, &ind);
512 if (! ( !pc && ber_class==BER_CLASS_UNI && tag==BER_UNI_TAG_OID) ) {
513 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"ObjectName must be an OID in primitive encoding");
514 pt = proto_item_add_subtree(pi,ett_decoding_error);
515 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "ObjectName not an OID");
516 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
520 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"Indicator must be clear in ObjectName");
521 pt = proto_item_add_subtree(pi,ett_decoding_error);
522 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "ObjectName has indicator set");
523 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
527 value_start = offset;
529 /* then we have the value's header */
530 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
531 value_offset = offset = get_ber_length(tvb, offset, &value_len, &ind);
534 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"the value must be in primitive encoding");
535 pt = proto_item_add_subtree(pi,ett_decoding_error);
536 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "value not in primitive encoding");
537 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
540 /* Now, we know where everithing is */
544 /* we add the varbind tree root with a dummy label we'll fill later on */
545 pi_varbind = proto_tree_add_text(tree,tvb,seq_offset,seq_len,"VarBind");
546 pt_varbind = proto_item_add_subtree(pi_varbind,ett_varbind);
549 pi_name = proto_tree_add_item(pt_varbind,hf_snmp_objectname,tvb,name_offset,name_len,FALSE);
550 pt_name = proto_item_add_subtree(pi_name,ett_name);
552 /* fetch ObjectName and its relative oid_info */
553 oid_bytes = ep_tvb_memdup(tvb, name_offset, name_len);
554 oid_info = oid_get_from_encoded(oid_bytes, name_len, &subids, &oid_matched, &oid_left);
556 add_oid_debug_subtree(oid_info,pt_name);
559 proto_item* pi = proto_tree_add_text(pt_name,tvb, 0, 0, "invalid oid: %s", oid_bytes);
560 pt = proto_item_add_subtree(pi, ett_decoding_error);
561 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "invalid oid: %s", oid_bytes);
562 return dissect_unknown_ber(actx->pinfo, tvb, name_offset, pt);
565 if (oid_matched+oid_left) {
566 oid_string = oid_subid2string(subids,oid_matched+oid_left);
569 if (ber_class == BER_CLASS_CON) {
570 /* if we have an error value just add it and get out the way ASAP */
574 if (value_len != 0) {
575 min_len = max_len = 0;
576 format_error = BER_WRONG_LENGTH;
581 hfid = hf_snmp_noSuchObject;
582 note = "noSuchObject";
585 hfid = hf_snmp_noSuchInstance;
586 note = "noSuchInstance";
589 hfid = hf_snmp_endOfMibView;
590 note = "endOfMibView";
593 pi = proto_tree_add_text(pt_varbind,tvb,0,0,"Wrong tag for Error Value: expected 0, 1, or 2 but got: %d",tag);
594 pt = proto_item_add_subtree(pi,ett_decoding_error);
595 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong tag for SNMP VarBind error value");
596 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
600 pi = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,FALSE);
601 expert_add_info_format(actx->pinfo, pi, PI_RESPONSE_CODE, PI_NOTE, "%s",note);
602 g_strlcpy (label, note, ITEM_LABEL_LENGTH);
606 /* 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 */
607 switch (oid_info->kind) {
608 case OID_KIND_SCALAR:
610 /* OK: we got the instance sub-id */
611 proto_tree_add_uint64(pt_name,hf_snmp_scalar_instance_index,tvb,name_offset,name_len,subids[oid_matched]);
612 oid_info_is_ok = TRUE;
614 } else if (oid_left == 0) {
615 if (ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
616 /* unSpecified does not require an instance sub-id add the new value and get off the way! */
617 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
620 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"A scalar should have one instance sub-id this one has none");
621 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "No instance sub-id in scalar value");
622 oid_info_is_ok = FALSE;
626 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"A scalar should have only one instance sub-id this has: %d",oid_left);
627 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong number of instance sub-ids in scalar value");
628 oid_info_is_ok = FALSE;
632 case OID_KIND_COLUMN:
633 if ( oid_info->parent->kind == OID_KIND_ROW) {
634 oid_key_t* k = oid_info->parent->key;
635 guint key_start = oid_matched;
636 guint key_len = oid_left;
637 oid_info_is_ok = TRUE;
639 if ( key_len == 0 && ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
640 /* unSpecified does not require an instance sub-id add the new value and get off the way! */
641 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
646 for (;k;k = k->next) {
649 if (key_start >= oid_matched+oid_left) {
650 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index sub-oid shorter than expected");
651 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid shorter than expected");
652 oid_info_is_ok = FALSE;
656 switch(k->key_type) {
657 case OID_KEY_TYPE_WRONG: {
658 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"OID instaces not handled, if you want this implemented please contact the wireshark developers");
659 expert_add_info_format(actx->pinfo, pi, PI_UNDECODED, PI_WARN, "Unimplemented instance index");
660 oid_info_is_ok = FALSE;
663 case OID_KEY_TYPE_INTEGER: {
664 if (IS_FT_INT(k->ft_type)) {
665 proto_tree_add_int(pt_name,k->hfid,tvb,name_offset,name_len,(guint)subids[key_start]);
666 } else { /* if it's not an unsigned int let proto_tree_add_uint throw a warning */
667 proto_tree_add_uint(pt_name,k->hfid,tvb,name_offset,name_len,(guint)subids[key_start]);
671 continue; /* k->next */
673 case OID_KEY_TYPE_IMPLIED_OID:
674 suboid_len = key_len;
678 case OID_KEY_TYPE_OID: {
680 guint suboid_buf_len;
683 suboid_len = subids[key_start++];
687 suboid = &(subids[key_start]);
689 if( suboid_len == 0 ) {
690 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"an index sub-oid OID cannot be 0 bytes long!");
691 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid OID with len=0");
692 oid_info_is_ok = FALSE;
696 if( key_len < suboid_len ) {
697 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index sub-oid should not be longer than remaining oid size");
698 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid longer than remaining oid size");
699 oid_info_is_ok = FALSE;
703 suboid_buf_len = oid_subid2encoded(suboid_len, suboid, &suboid_buf);
705 DISSECTOR_ASSERT(suboid_buf_len);
707 proto_tree_add_oid(pt_name,k->hfid,tvb,name_offset, suboid_buf_len, suboid_buf);
709 key_start += suboid_len;
710 key_len -= suboid_len + 1;
711 continue; /* k->next */
720 switch (k->key_type) {
721 case OID_KEY_TYPE_IPADDR:
722 suboid = &(subids[key_start]);
725 case OID_KEY_TYPE_IMPLIED_STRING:
726 case OID_KEY_TYPE_IMPLIED_BYTES:
727 case OID_KEY_TYPE_ETHER:
728 suboid = &(subids[key_start]);
732 buf_len = k->num_subids;
733 suboid = &(subids[key_start]);
743 if( key_len < buf_len ) {
744 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index string should not be longer than remaining oid size");
745 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index string longer than remaining oid size");
746 oid_info_is_ok = FALSE;
750 buf = ep_alloc(buf_len+1);
751 for (i = 0; i < buf_len; i++)
752 buf[i] = (guint8)suboid[i];
755 switch(k->key_type) {
756 case OID_KEY_TYPE_STRING:
757 case OID_KEY_TYPE_IMPLIED_STRING:
758 proto_tree_add_string(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
760 case OID_KEY_TYPE_BYTES:
761 case OID_KEY_TYPE_NSAP:
762 case OID_KEY_TYPE_IMPLIED_BYTES:
763 proto_tree_add_bytes(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
765 case OID_KEY_TYPE_ETHER:
766 proto_tree_add_ether(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
768 case OID_KEY_TYPE_IPADDR: {
769 guint32* ipv4_p = (void*)buf;
770 proto_tree_add_ipv4(pt_name,k->hfid,tvb,name_offset,buf_len, *ipv4_p);
773 DISSECTOR_ASSERT_NOT_REACHED();
778 key_start += buf_len;
780 continue; /* k->next*/
786 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"We do not know how to handle this OID, if you want this implemented please contact the wireshark developers");
787 expert_add_info_format(actx->pinfo, pi, PI_UNDECODED, PI_WARN, "Unimplemented instance index");
788 oid_info_is_ok = FALSE;
792 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"The COLUMS's parent is not a ROW. This is a BUG! please contact the wireshark developers.");
793 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_ERROR, "COLUMS's parent is not a ROW");
794 oid_info_is_ok = FALSE;
798 /* proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"This kind OID should have no value");
799 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "This kind OID should have no value"); */
800 oid_info_is_ok = FALSE;
806 if (oid_info_is_ok && oid_info->value_type) {
807 if (ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
808 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
810 if ((oid_info->value_type->ber_class != BER_CLASS_ANY) &&
811 (ber_class != oid_info->value_type->ber_class))
812 format_error = BER_WRONG_TAG;
814 if ((oid_info->value_type->ber_tag != BER_TAG_ANY) &&
815 (tag != oid_info->value_type->ber_tag))
816 format_error = BER_WRONG_TAG;
818 max_len = oid_info->value_type->max_len == -1 ? 0xffffff : oid_info->value_type->max_len;
819 min_len = oid_info->value_type->min_len;
821 if ((int)value_len < min_len || (int)value_len > max_len) {
822 format_error = BER_WRONG_LENGTH;
824 pi_value = proto_tree_add_item(pt_varbind,oid_info->value_hfid,tvb,value_offset,value_len,FALSE);
828 switch(ber_class|(tag<<4)) {
829 case BER_CLASS_UNI|(BER_UNI_TAG_INTEGER<<4):
830 max_len = 4; min_len = 1;
831 if (value_len > (guint)max_len && value_len < (guint)min_len) format_error = BER_WRONG_LENGTH;
832 hfid = hf_snmp_integer32_value;
834 case BER_CLASS_UNI|(BER_UNI_TAG_OCTETSTRING<<4):
835 hfid = hf_snmp_octetstring_value;
837 case BER_CLASS_UNI|(BER_UNI_TAG_OID<<4):
838 max_len = -1; min_len = 1;
839 if (value_len < (guint)min_len) format_error = BER_WRONG_LENGTH;
840 hfid = hf_snmp_oid_value;
842 case BER_CLASS_UNI|(BER_UNI_TAG_NULL<<4):
843 max_len = 0; min_len = 0;
844 if (value_len != 0) format_error = BER_WRONG_LENGTH;
845 hfid = hf_snmp_null_value;
847 case BER_CLASS_APP: /* | (SNMP_IPA<<4)*/
849 case 4: hfid = hf_snmp_ipv4_value; break;
850 case 16: hfid = hf_snmp_ipv6_value; break;
851 default: hfid = hf_snmp_anyaddress_value; break;
854 case BER_CLASS_APP|(SNMP_U32<<4):
855 hfid = hf_snmp_unsigned32_value;
857 case BER_CLASS_APP|(SNMP_GGE<<4):
858 hfid = hf_snmp_gauge32_value;
860 case BER_CLASS_APP|(SNMP_CNT<<4):
861 hfid = hf_snmp_counter_value;
863 case BER_CLASS_APP|(SNMP_TIT<<4):
864 hfid = hf_snmp_timeticks_value;
866 case BER_CLASS_APP|(SNMP_OPQ<<4):
867 hfid = hf_snmp_opaque_value;
869 case BER_CLASS_APP|(SNMP_NSP<<4):
870 hfid = hf_snmp_nsap_value;
872 case BER_CLASS_APP|(SNMP_C64<<4):
873 hfid = hf_snmp_big_counter_value;
876 hfid = hf_snmp_unknown_value;
880 if (format_error != BER_NO_ERROR) {
881 pi_value = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,FALSE);
882 expert_add_info_format(actx->pinfo, pi_value, PI_UNDECODED, PI_NOTE, "Unresolved value, Missing MIB");
884 oid_info_is_ok = FALSE;
887 pt_value = proto_item_add_subtree(pi_value,ett_value);
889 if (value_len > 0 && oid_string) {
890 tvbuff_t* sub_tvb = tvb_new_subset(tvb, value_offset, value_len, value_len);
892 next_tvb_add_string(&var_list, sub_tvb, (snmp_var_in_tree) ? pt_value : NULL, value_sub_dissectors_table, oid_string);
897 if (pi_value) proto_item_fill_label(PITEM_FINFO(pi_value), label);
899 if (oid_info && oid_info->name) {
901 repr = ep_strdup_printf("%s.%s (%s)",
903 oid_subid2string(&(subids[oid_matched]),oid_left),
904 oid_subid2string(subids,oid_matched+oid_left));
905 info_oid = ep_strdup_printf("%s.%s", oid_info->name,
906 oid_subid2string(&(subids[oid_matched]),oid_left));
908 repr = ep_strdup_printf("%s (%s)",
910 oid_subid2string(subids,oid_matched));
911 info_oid = oid_info->name;
913 } else if (oid_string) {
914 repr = ep_strdup(oid_string);
915 info_oid = oid_string;
917 repr = ep_strdup("[Bad OID]");
920 valstr = strstr(label,": ");
921 valstr = valstr ? valstr+2 : label;
923 proto_item_set_text(pi_varbind,"%s: %s",repr,valstr);
925 if (display_oid && info_oid && check_col(actx->pinfo->cinfo, COL_INFO)) {
926 col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", info_oid);
929 switch (format_error) {
930 case BER_WRONG_LENGTH: {
931 proto_tree* pt = proto_item_add_subtree(pi_value,ett_decoding_error);
932 proto_item* pi = proto_tree_add_text(pt,tvb,0,0,"Wrong value length: %u expecting: %u <= len <= %u",
935 max_len == -1 ? 0xFFFFFF : max_len);
936 pt = proto_item_add_subtree(pi,ett_decoding_error);
937 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong length for SNMP VarBind/value");
938 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
940 case BER_WRONG_TAG: {
941 proto_tree* pt = proto_item_add_subtree(pi_value,ett_decoding_error);
942 proto_item* pi = proto_tree_add_text(pt,tvb,0,0,"Wrong class/tag for Value expected: %d,%d got: %d,%d",
943 oid_info->value_type->ber_class,
944 oid_info->value_type->ber_tag,
947 pt = proto_item_add_subtree(pi,ett_decoding_error);
948 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong class/tag for SNMP VarBind/value");
949 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
955 return seq_offset + seq_len;
959 #define F_SNMP_ENGINEID_CONFORM 0x80
960 #define SNMP_ENGINEID_RFC1910 0x00
961 #define SNMP_ENGINEID_RFC3411 0x01
963 static const true_false_string tfs_snmp_engineid_conform = {
965 "RFC1910 (Non-SNMPv3)"
968 #define SNMP_ENGINEID_FORMAT_IPV4 0x01
969 #define SNMP_ENGINEID_FORMAT_IPV6 0x02
970 #define SNMP_ENGINEID_FORMAT_MACADDRESS 0x03
971 #define SNMP_ENGINEID_FORMAT_TEXT 0x04
972 #define SNMP_ENGINEID_FORMAT_OCTETS 0x05
974 static const value_string snmp_engineid_format_vals[] = {
975 { SNMP_ENGINEID_FORMAT_IPV4, "IPv4 address" },
976 { SNMP_ENGINEID_FORMAT_IPV6, "IPv6 address" },
977 { SNMP_ENGINEID_FORMAT_MACADDRESS, "MAC address" },
978 { SNMP_ENGINEID_FORMAT_TEXT, "Text, administratively assigned" },
979 { SNMP_ENGINEID_FORMAT_OCTETS, "Octets, administratively assigned" },
984 * SNMP Engine ID dissection according to RFC 3411 (SnmpEngineID TC)
985 * or historic RFC 1910 (AgentID)
987 int dissect_snmp_engineid(proto_tree *tree, tvbuff_t *tvb, int offset, int len) {
988 proto_item *item = NULL;
989 guint8 conformance, format;
990 guint32 enterpriseid, seconds;
992 int len_remain = len;
994 /* first bit: engine id conformance */
995 if (len_remain<4) return offset;
996 conformance = ((tvb_get_guint8(tvb, offset)>>7) & 0x01);
997 proto_tree_add_item(tree, hf_snmp_engineid_conform, tvb, offset, 1, FALSE);
999 /* 4-byte enterprise number/name */
1000 if (len_remain<4) return offset;
1001 enterpriseid = tvb_get_ntohl(tvb, offset);
1003 enterpriseid -= 0x80000000; /* ignore first bit */
1004 proto_tree_add_uint(tree, hf_snmp_engineid_enterprise, tvb, offset, 4, enterpriseid);
1008 switch(conformance) {
1010 case SNMP_ENGINEID_RFC1910:
1011 /* 12-byte AgentID w/ 8-byte trailer */
1012 if (len_remain==8) {
1013 proto_tree_add_text(tree, tvb, offset, 8, "AgentID Trailer: 0x%s",
1014 tvb_bytes_to_str(tvb, offset, 8));
1018 proto_tree_add_text(tree, tvb, offset, len_remain, "<Data not conforming to RFC1910>");
1023 case SNMP_ENGINEID_RFC3411: /* variable length: 5..32 */
1025 /* 1-byte format specifier */
1026 if (len_remain<1) return offset;
1027 format = tvb_get_guint8(tvb, offset);
1028 item = proto_tree_add_uint_format(tree, hf_snmp_engineid_format, tvb, offset, 1, format, "Engine ID Format: %s (%d)",
1029 val_to_str(format, snmp_engineid_format_vals, "Reserved/Enterprise-specific"), format);
1034 case SNMP_ENGINEID_FORMAT_IPV4:
1035 /* 4-byte IPv4 address */
1036 if (len_remain==4) {
1037 proto_tree_add_item(tree, hf_snmp_engineid_ipv4, tvb, offset, 4, FALSE);
1042 case SNMP_ENGINEID_FORMAT_IPV6:
1043 /* 16-byte IPv6 address */
1044 if (len_remain==16) {
1045 proto_tree_add_item(tree, hf_snmp_engineid_ipv6, tvb, offset, 16, FALSE);
1050 case SNMP_ENGINEID_FORMAT_MACADDRESS:
1051 /* 6-byte MAC address */
1052 if (len_remain==6) {
1053 proto_tree_add_item(tree, hf_snmp_engineid_mac, tvb, offset, 6, FALSE);
1058 case SNMP_ENGINEID_FORMAT_TEXT:
1059 /* max. 27-byte string, administratively assigned */
1060 if (len_remain<=27) {
1061 proto_tree_add_item(tree, hf_snmp_engineid_text, tvb, offset, len_remain, FALSE);
1067 /* most common enterprise-specific format: (ucd|net)-snmp random */
1068 if ((enterpriseid==2021)||(enterpriseid==8072)) {
1069 proto_item_append_text(item, (enterpriseid==2021) ? ": UCD-SNMP Random" : ": Net-SNMP Random");
1070 /* demystify: 4B random, 4B epoch seconds */
1071 if (len_remain==8) {
1072 proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, 4, FALSE);
1073 seconds = tvb_get_letohl(tvb, offset+4);
1075 proto_tree_add_time_format(tree, hf_snmp_engineid_time, tvb, offset+4, 4,
1076 &ts, "Engine ID Data: Creation Time: %s",
1077 abs_time_secs_to_str(seconds));
1083 case SNMP_ENGINEID_FORMAT_OCTETS:
1085 /* max. 27 bytes, administratively assigned or unknown format */
1086 if (len_remain<=27) {
1087 proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, len_remain, FALSE);
1096 proto_tree_add_text(tree, tvb, offset, len_remain, "<Data not conforming to RFC3411>");
1103 static void set_ue_keys(snmp_ue_assoc_t* n ) {
1104 guint key_size = n->user.authModel->key_size;
1106 n->user.authKey.data = se_alloc(key_size);
1107 n->user.authKey.len = key_size;
1108 n->user.authModel->pass2key(n->user.authPassword.data,
1109 n->user.authPassword.len,
1112 n->user.authKey.data);
1114 n->user.privKey.data = se_alloc(key_size);
1115 n->user.privKey.len = key_size;
1116 n->user.authModel->pass2key(n->user.privPassword.data,
1117 n->user.privPassword.len,
1120 n->user.privKey.data);
1123 static snmp_ue_assoc_t* ue_se_dup(snmp_ue_assoc_t* o) {
1124 snmp_ue_assoc_t* d = se_memdup(o,sizeof(snmp_ue_assoc_t));
1126 d->user.authModel = o->user.authModel;
1128 d->user.privProtocol = o->user.privProtocol;
1130 d->user.userName.data = se_memdup(o->user.userName.data,o->user.userName.len);
1131 d->user.userName.len = o->user.userName.len;
1133 d->user.authPassword.data = o->user.authPassword.data ? se_memdup(o->user.authPassword.data,o->user.authPassword.len) : NULL;
1134 d->user.authPassword.len = o->user.authPassword.len;
1136 d->user.privPassword.data = o->user.privPassword.data ? se_memdup(o->user.privPassword.data,o->user.privPassword.len) : NULL;
1137 d->user.privPassword.len = o->user.privPassword.len;
1139 d->engine.len = o->engine.len;
1141 if (d->engine.len) {
1142 d->engine.data = se_memdup(o->engine.data,o->engine.len);
1151 #define CACHE_INSERT(c,a) if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = NULL; }
1153 static void renew_ue_cache(void) {
1157 localized_ues = NULL;
1158 unlocalized_ues = NULL;
1160 for(i = 0; i < num_ueas; i++) {
1161 snmp_ue_assoc_t* a = ue_se_dup(&(ueas[i]));
1163 if (a->engine.len) {
1164 CACHE_INSERT(localized_ues,a);
1167 CACHE_INSERT(unlocalized_ues,a);
1172 localized_ues = NULL;
1173 unlocalized_ues = NULL;
1178 static snmp_ue_assoc_t* localize_ue( snmp_ue_assoc_t* o, const guint8* engine, guint engine_len ) {
1179 snmp_ue_assoc_t* n = se_memdup(o,sizeof(snmp_ue_assoc_t));
1181 n->engine.data = se_memdup(engine,engine_len);
1182 n->engine.len = engine_len;
1190 #define localized_match(a,u,ul,e,el) \
1191 ( a->user.userName.len == ul \
1192 && a->engine.len == el \
1193 && memcmp( a->user.userName.data, u, (a->user.userName.len < ul) ? a->user.userName.len : ul ) == 0 \
1194 && memcmp( a->engine.data, e, (a->engine.len < el) ? a->engine.len : el ) == 0 )
1196 #define unlocalized_match(a,u,l) \
1197 ( a->user.userName.len == l && memcmp( a->user.userName.data, u, a->user.userName.len < l ? a->user.userName.len : l) == 0 )
1199 static snmp_ue_assoc_t* get_user_assoc(tvbuff_t* engine_tvb, tvbuff_t* user_tvb) {
1200 static snmp_ue_assoc_t* a;
1201 guint given_username_len;
1202 guint8* given_username;
1203 guint given_engine_len;
1204 guint8* given_engine;
1206 if ( ! (localized_ues || unlocalized_ues ) ) return NULL;
1208 if (! ( user_tvb && engine_tvb ) ) return NULL;
1210 given_username_len = tvb_length_remaining(user_tvb,0);
1211 given_username = ep_tvb_memdup(user_tvb,0,-1);
1212 given_engine_len = tvb_length_remaining(engine_tvb,0);
1213 given_engine = ep_tvb_memdup(engine_tvb,0,-1);
1215 for (a = localized_ues; a; a = a->next) {
1216 if ( localized_match(a, given_username, given_username_len, given_engine, given_engine_len) ) {
1221 for (a = unlocalized_ues; a; a = a->next) {
1222 if ( unlocalized_match(a, given_username, given_username_len) ) {
1223 snmp_ue_assoc_t* n = localize_ue( a, given_engine, given_engine_len );
1224 CACHE_INSERT(localized_ues,n);
1232 static gboolean snmp_usm_auth_md5(snmp_usm_params_t* p, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error) {
1245 *error = "No Authenticator";
1249 key = p->user_assoc->user.authKey.data;
1250 key_len = p->user_assoc->user.authKey.len;
1253 *error = "User has no authKey";
1258 auth_len = tvb_length_remaining(p->auth_tvb,0);
1260 if (auth_len != 12) {
1261 *error = "Authenticator length wrong";
1265 msg_len = tvb_length_remaining(p->msg_tvb,0);
1266 msg = ep_tvb_memdup(p->msg_tvb,0,msg_len);
1269 auth = ep_tvb_memdup(p->auth_tvb,0,auth_len);
1271 start = p->auth_offset - p->start_offset;
1272 end = start + auth_len;
1274 /* fill the authenticator with zeros */
1275 for ( i = start ; i < end ; i++ ) {
1279 calc_auth = ep_alloc(16);
1281 md5_hmac(msg, msg_len, key, key_len, calc_auth);
1283 if (calc_auth_p) *calc_auth_p = calc_auth;
1284 if (calc_auth_len_p) *calc_auth_len_p = 12;
1286 return ( memcmp(auth,calc_auth,12) != 0 ) ? FALSE : TRUE;
1290 static gboolean snmp_usm_auth_sha1(snmp_usm_params_t* p _U_, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error _U_) {
1303 *error = "No Authenticator";
1307 key = p->user_assoc->user.authKey.data;
1308 key_len = p->user_assoc->user.authKey.len;
1311 *error = "User has no authKey";
1316 auth_len = tvb_length_remaining(p->auth_tvb,0);
1319 if (auth_len != 12) {
1320 *error = "Authenticator length wrong";
1324 msg_len = tvb_length_remaining(p->msg_tvb,0);
1325 msg = ep_tvb_memdup(p->msg_tvb,0,msg_len);
1327 auth = ep_tvb_memdup(p->auth_tvb,0,auth_len);
1329 start = p->auth_offset - p->start_offset;
1330 end = start + auth_len;
1332 /* fill the authenticator with zeros */
1333 for ( i = start ; i < end ; i++ ) {
1337 calc_auth = ep_alloc(20);
1339 sha1_hmac(key, key_len, msg, msg_len, calc_auth);
1341 if (calc_auth_p) *calc_auth_p = calc_auth;
1342 if (calc_auth_len_p) *calc_auth_len_p = 12;
1344 return ( memcmp(auth,calc_auth,12) != 0 ) ? FALSE : TRUE;
1347 static tvbuff_t* snmp_usm_priv_des(snmp_usm_params_t* p _U_, tvbuff_t* encryptedData , gchar const** error _U_) {
1348 #ifdef HAVE_LIBGCRYPT
1350 gcry_cipher_hd_t hd = NULL;
1353 guint8* des_key = p->user_assoc->user.privKey.data; /* first 8 bytes */
1354 guint8* pre_iv = &(p->user_assoc->user.privKey.data[8]); /* last 8 bytes */
1359 tvbuff_t* clear_tvb;
1364 salt_len = tvb_length_remaining(p->priv_tvb,0);
1366 if (salt_len != 8) {
1367 *error = "decryptionError: msgPrivacyParameters length != 8";
1371 salt = ep_tvb_memdup(p->priv_tvb,0,salt_len);
1374 The resulting "salt" is XOR-ed with the pre-IV to obtain the IV.
1376 for (i=0; i<8; i++) {
1377 iv[i] = pre_iv[i] ^ salt[i];
1380 cryptgrm_len = tvb_length_remaining(encryptedData,0);
1382 if (cryptgrm_len % 8) {
1383 *error = "decryptionError: the length of the encrypted data is not a mutiple of 8 octets";
1387 cryptgrm = ep_tvb_memdup(encryptedData,0,-1);
1389 cleartext = ep_alloc(cryptgrm_len);
1391 err = gcry_cipher_open(&hd, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_CBC, 0);
1392 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1394 err = gcry_cipher_setiv(hd, iv, 8);
1395 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1397 err = gcry_cipher_setkey(hd,des_key,8);
1398 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1400 err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len);
1401 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1403 gcry_cipher_close(hd);
1405 clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len);
1410 *error = (void*)gpg_strerror(err);
1411 if (hd) gcry_cipher_close(hd);
1414 *error = "libgcrypt not present, cannot decrypt";
1419 static tvbuff_t* snmp_usm_priv_aes(snmp_usm_params_t* p _U_, tvbuff_t* encryptedData , gchar const** error _U_) {
1420 #ifdef HAVE_LIBGCRYPT
1422 gcry_cipher_hd_t hd = NULL;
1425 guint8* aes_key = p->user_assoc->user.privKey.data; /* first 16 bytes */
1430 tvbuff_t* clear_tvb;
1432 priv_len = tvb_length_remaining(p->priv_tvb,0);
1434 if (priv_len != 8) {
1435 *error = "decryptionError: msgPrivacyParameters length != 8";
1439 iv[0] = (p->boots & 0xff000000) >> 24;
1440 iv[1] = (p->boots & 0x00ff0000) >> 16;
1441 iv[2] = (p->boots & 0x0000ff00) >> 8;
1442 iv[3] = (p->boots & 0x000000ff);
1443 iv[4] = (p->time & 0xff000000) >> 24;
1444 iv[5] = (p->time & 0x00ff0000) >> 16;
1445 iv[6] = (p->time & 0x0000ff00) >> 8;
1446 iv[7] = (p->time & 0x000000ff);
1447 tvb_memcpy(p->priv_tvb,&(iv[8]),0,8);
1449 cryptgrm_len = tvb_length_remaining(encryptedData,0);
1450 cryptgrm = ep_tvb_memdup(encryptedData,0,-1);
1452 cleartext = ep_alloc(cryptgrm_len);
1454 err = gcry_cipher_open(&hd, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_CFB, 0);
1455 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1457 err = gcry_cipher_setiv(hd, iv, 16);
1458 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1460 err = gcry_cipher_setkey(hd,aes_key,16);
1461 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1463 err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len);
1464 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1466 gcry_cipher_close(hd);
1468 clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len);
1473 *error = (void*)gpg_strerror(err);
1474 if (hd) gcry_cipher_close(hd);
1477 *error = "libgcrypt not present, cannot decrypt";
1483 gboolean check_ScopedPdu(tvbuff_t* tvb) {
1488 int hoffset, eoffset;
1491 offset = get_ber_identifier(tvb, 0, &class, &pc, &tag);
1492 offset = get_ber_length(tvb, offset, NULL, NULL);
1494 if ( ! (((class!=BER_CLASS_APP) && (class!=BER_CLASS_PRI) )
1495 && ( (!pc) || (class!=BER_CLASS_UNI) || (tag!=BER_UNI_TAG_ENUMERATED) )
1498 if((tvb_get_guint8(tvb, offset)==0)&&(tvb_get_guint8(tvb, offset+1)==0))
1503 offset = get_ber_identifier(tvb, offset, &class, &pc, &tag);
1504 offset = get_ber_length(tvb, offset, &len, NULL);
1505 eoffset = offset + len;
1507 if (eoffset <= hoffset) return FALSE;
1509 if ((class!=BER_CLASS_APP)&&(class!=BER_CLASS_PRI))
1510 if( (class!=BER_CLASS_UNI)
1511 ||((tag<BER_UNI_TAG_NumericString)&&(tag!=BER_UNI_TAG_OCTETSTRING)&&(tag!=BER_UNI_TAG_UTF8String)) )
1519 /*--- Included file: packet-snmp-fn.c ---*/
1520 #line 1 "packet-snmp-fn.c"
1525 dissect_snmp_EnterpriseOID(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1527 tvbuff_t* param_tvb = NULL;
1531 offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, ¶m_tvb);
1533 if (display_oid && param_tvb) {
1534 len = tvb_length_remaining (param_tvb, 0);
1535 name = oid_resolved_from_encoded(tvb_get_ptr(param_tvb, 0, len), len);
1536 if (name && check_col(actx->pinfo->cinfo, COL_INFO)) {
1537 col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", name);
1549 dissect_snmp_OCTET_STRING_SIZE_4(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1550 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
1559 dissect_snmp_NetworkAddress(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1560 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1561 hf_index, BER_CLASS_APP, 0, TRUE, dissect_snmp_OCTET_STRING_SIZE_4);
1569 dissect_snmp_INTEGER_0_4294967295(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1570 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1579 dissect_snmp_TimeTicks(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1580 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1581 hf_index, BER_CLASS_APP, 3, TRUE, dissect_snmp_INTEGER_0_4294967295);
1589 dissect_snmp_Integer32(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1590 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1599 dissect_snmp_ObjectName(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1600 offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
1606 static const value_string snmp_Version_vals[] = {
1616 dissect_snmp_Version(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1617 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1626 dissect_snmp_OCTET_STRING(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1627 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
1636 dissect_snmp_INTEGER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1637 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1644 static const value_string snmp_T_error_status_vals[] = {
1647 { 2, "noSuchName" },
1653 { 8, "wrongLength" },
1654 { 9, "wrongEncoding" },
1655 { 10, "wrongValue" },
1656 { 11, "noCreation" },
1657 { 12, "inconsistentValue" },
1658 { 13, "resourceUnavailable" },
1659 { 14, "commitFailed" },
1660 { 15, "undoFailed" },
1661 { 16, "authorizationError" },
1662 { 17, "notWritable" },
1663 { 18, "inconsistentName" },
1669 dissect_snmp_T_error_status(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1670 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1679 dissect_snmp_NULL(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1680 offset = dissect_ber_null(implicit_tag, actx, tree, tvb, offset, hf_index);
1687 static const ber_sequence_t VarBindList_sequence_of[1] = {
1688 { &hf_snmp_VarBindList_item, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBind },
1692 dissect_snmp_VarBindList(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1693 offset = dissect_ber_sequence_of(implicit_tag, actx, tree, tvb, offset,
1694 VarBindList_sequence_of, hf_index, ett_snmp_VarBindList);
1700 static const ber_sequence_t PDU_sequence[] = {
1701 { &hf_snmp_request_id , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER },
1702 { &hf_snmp_error_status , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_error_status },
1703 { &hf_snmp_error_index , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER },
1704 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1705 { NULL, 0, 0, 0, NULL }
1709 dissect_snmp_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1710 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1711 PDU_sequence, hf_index, ett_snmp_PDU);
1719 dissect_snmp_GetRequest_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1720 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1721 hf_index, BER_CLASS_CON, 0, TRUE, dissect_snmp_PDU);
1729 dissect_snmp_GetNextRequest_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1730 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1731 hf_index, BER_CLASS_CON, 1, TRUE, dissect_snmp_PDU);
1739 dissect_snmp_GetResponse_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1740 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1741 hf_index, BER_CLASS_CON, 2, TRUE, dissect_snmp_PDU);
1749 dissect_snmp_SetRequest_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1750 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1751 hf_index, BER_CLASS_CON, 3, TRUE, dissect_snmp_PDU);
1757 static const value_string snmp_T_generic_trap_vals[] = {
1762 { 4, "authenticationFailure" },
1763 { 5, "egpNeighborLoss" },
1764 { 6, "enterpriseSpecific" },
1770 dissect_snmp_T_generic_trap(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1771 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1778 static const ber_sequence_t Trap_PDU_U_sequence[] = {
1779 { &hf_snmp_enterprise , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_EnterpriseOID },
1780 { &hf_snmp_agent_addr , BER_CLASS_APP, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_NetworkAddress },
1781 { &hf_snmp_generic_trap , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_generic_trap },
1782 { &hf_snmp_specific_trap , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER },
1783 { &hf_snmp_time_stamp , BER_CLASS_APP, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_TimeTicks },
1784 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1785 { NULL, 0, 0, 0, NULL }
1789 dissect_snmp_Trap_PDU_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1790 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1791 Trap_PDU_U_sequence, hf_index, ett_snmp_Trap_PDU_U);
1799 dissect_snmp_Trap_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1800 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1801 hf_index, BER_CLASS_CON, 4, TRUE, dissect_snmp_Trap_PDU_U);
1809 dissect_snmp_INTEGER_0_2147483647(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1810 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1817 static const ber_sequence_t BulkPDU_sequence[] = {
1818 { &hf_snmp_bulkPDU_request_id, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Integer32 },
1819 { &hf_snmp_non_repeaters , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
1820 { &hf_snmp_max_repetitions, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
1821 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1822 { NULL, 0, 0, 0, NULL }
1826 dissect_snmp_BulkPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1827 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1828 BulkPDU_sequence, hf_index, ett_snmp_BulkPDU);
1836 dissect_snmp_GetBulkRequest_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1837 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1838 hf_index, BER_CLASS_CON, 5, TRUE, dissect_snmp_BulkPDU);
1846 dissect_snmp_InformRequest_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1847 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1848 hf_index, BER_CLASS_CON, 6, TRUE, dissect_snmp_PDU);
1856 dissect_snmp_SNMPv2_Trap_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1857 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1858 hf_index, BER_CLASS_CON, 7, TRUE, dissect_snmp_PDU);
1866 dissect_snmp_Report_PDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1867 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1868 hf_index, BER_CLASS_CON, 8, TRUE, dissect_snmp_PDU);
1874 static const value_string snmp_PDUs_vals[] = {
1875 { 0, "get-request" },
1876 { 1, "get-next-request" },
1877 { 2, "get-response" },
1878 { 3, "set-request" },
1880 { 5, "getBulkRequest" },
1881 { 6, "informRequest" },
1882 { 7, "sNMPv2-Trap" },
1887 static const ber_choice_t PDUs_choice[] = {
1888 { 0, &hf_snmp_get_request , BER_CLASS_CON, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_GetRequest_PDU },
1889 { 1, &hf_snmp_get_next_request, BER_CLASS_CON, 1, BER_FLAGS_NOOWNTAG, dissect_snmp_GetNextRequest_PDU },
1890 { 2, &hf_snmp_get_response , BER_CLASS_CON, 2, BER_FLAGS_NOOWNTAG, dissect_snmp_GetResponse_PDU },
1891 { 3, &hf_snmp_set_request , BER_CLASS_CON, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_SetRequest_PDU },
1892 { 4, &hf_snmp_trap , BER_CLASS_CON, 4, BER_FLAGS_NOOWNTAG, dissect_snmp_Trap_PDU },
1893 { 5, &hf_snmp_getBulkRequest , BER_CLASS_CON, 5, BER_FLAGS_NOOWNTAG, dissect_snmp_GetBulkRequest_PDU },
1894 { 6, &hf_snmp_informRequest , BER_CLASS_CON, 6, BER_FLAGS_NOOWNTAG, dissect_snmp_InformRequest_PDU },
1895 { 7, &hf_snmp_sNMPv2_Trap , BER_CLASS_CON, 7, BER_FLAGS_NOOWNTAG, dissect_snmp_SNMPv2_Trap_PDU },
1896 { 8, &hf_snmp_report , BER_CLASS_CON, 8, BER_FLAGS_NOOWNTAG, dissect_snmp_Report_PDU },
1897 { 0, NULL, 0, 0, 0, NULL }
1901 dissect_snmp_PDUs(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1905 if (check_col(actx->pinfo->cinfo, COL_INFO))
1906 col_clear(actx->pinfo->cinfo, COL_INFO);
1908 offset = dissect_ber_choice(actx, tree, tvb, offset,
1909 PDUs_choice, hf_index, ett_snmp_PDUs,
1912 if( (pdu_type!=-1) && snmp_PDUs_vals[pdu_type].strptr ){
1913 if (check_col(actx->pinfo->cinfo, COL_INFO))
1914 col_prepend_fstr(actx->pinfo->cinfo, COL_INFO, "%s", snmp_PDUs_vals[pdu_type].strptr);
1923 static const ber_sequence_t Message_sequence[] = {
1924 { &hf_snmp_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
1925 { &hf_snmp_community , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
1926 { &hf_snmp_data , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_PDUs },
1927 { NULL, 0, 0, 0, NULL }
1931 dissect_snmp_Message(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1932 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1933 Message_sequence, hf_index, ett_snmp_Message);
1939 static const value_string snmp_T_datav2u_vals[] = {
1945 static const ber_choice_t T_datav2u_choice[] = {
1946 { 0, &hf_snmp_v2u_plaintext , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_PDUs },
1947 { 1, &hf_snmp_encrypted , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
1948 { 0, NULL, 0, 0, 0, NULL }
1952 dissect_snmp_T_datav2u(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1953 offset = dissect_ber_choice(actx, tree, tvb, offset,
1954 T_datav2u_choice, hf_index, ett_snmp_T_datav2u,
1961 static const ber_sequence_t Messagev2u_sequence[] = {
1962 { &hf_snmp_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
1963 { &hf_snmp_parameters , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
1964 { &hf_snmp_datav2u , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_T_datav2u },
1965 { NULL, 0, 0, 0, NULL }
1969 dissect_snmp_Messagev2u(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1970 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1971 Messagev2u_sequence, hf_index, ett_snmp_Messagev2u);
1979 dissect_snmp_SnmpEngineID(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1981 tvbuff_t* param_tvb = NULL;
1983 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
1986 proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid);
1987 dissect_snmp_engineid(engine_tree, param_tvb, 0, tvb_length_remaining(param_tvb,0));
1998 dissect_snmp_T_msgAuthoritativeEngineID(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2001 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2003 if (usm_p.engine_tvb) {
2004 proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid);
2005 dissect_snmp_engineid(engine_tree, usm_p.engine_tvb, 0, tvb_length_remaining(usm_p.engine_tvb,0));
2016 dissect_snmp_T_msgAuthoritativeEngineBoots(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2017 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2026 dissect_snmp_T_msgAuthoritativeEngineTime(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2027 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2036 dissect_snmp_T_msgUserName(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2037 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2046 dissect_snmp_T_msgAuthenticationParameters(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2048 offset = dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_index, &usm_p.auth_tvb);
2049 if (usm_p.auth_tvb) {
2050 usm_p.auth_item = actx->created_item;
2051 usm_p.auth_offset = tvb_offset_from_real_beginning(usm_p.auth_tvb);
2061 dissect_snmp_T_msgPrivacyParameters(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2062 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2069 static const ber_sequence_t UsmSecurityParameters_sequence[] = {
2070 { &hf_snmp_msgAuthoritativeEngineID, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineID },
2071 { &hf_snmp_msgAuthoritativeEngineBoots, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineBoots },
2072 { &hf_snmp_msgAuthoritativeEngineTime, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineTime },
2073 { &hf_snmp_msgUserName , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgUserName },
2074 { &hf_snmp_msgAuthenticationParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthenticationParameters },
2075 { &hf_snmp_msgPrivacyParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgPrivacyParameters },
2076 { NULL, 0, 0, 0, NULL }
2080 dissect_snmp_UsmSecurityParameters(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2081 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2082 UsmSecurityParameters_sequence, hf_index, ett_snmp_UsmSecurityParameters);
2090 dissect_snmp_INTEGER_484_2147483647(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2091 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2100 dissect_snmp_T_msgFlags(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2101 #line 212 "snmp.cnf"
2102 tvbuff_t *parameter_tvb = NULL;
2104 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2108 guint8 v3_flags = tvb_get_guint8(parameter_tvb, 0);
2109 proto_tree* flags_tree = proto_item_add_subtree(actx->created_item,ett_msgFlags);
2111 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_report, parameter_tvb, 0, 1, FALSE);
2112 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_crypt, parameter_tvb, 0, 1, FALSE);
2113 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_auth, parameter_tvb, 0, 1, FALSE);
2115 usm_p.encrypted = v3_flags & TH_CRYPT ? TRUE : FALSE;
2116 usm_p.authenticated = v3_flags & TH_AUTH ? TRUE : FALSE;
2128 dissect_snmp_T_msgSecurityModel(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2129 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2136 static const ber_sequence_t HeaderData_sequence[] = {
2137 { &hf_snmp_msgID , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
2138 { &hf_snmp_msgMaxSize , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_484_2147483647 },
2139 { &hf_snmp_msgFlags , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgFlags },
2140 { &hf_snmp_msgSecurityModel, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgSecurityModel },
2141 { NULL, 0, 0, 0, NULL }
2145 dissect_snmp_HeaderData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2146 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2147 HeaderData_sequence, hf_index, ett_snmp_HeaderData);
2155 dissect_snmp_T_msgSecurityParameters(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2156 #line 155 "snmp.cnf"
2158 switch(MsgSecurityModel){
2159 case SNMP_SEC_USM: /* 3 */
2160 offset = dissect_snmp_UsmSecurityParameters(FALSE, tvb, offset+2, actx, tree, -1);
2161 usm_p.user_assoc = get_user_assoc(usm_p.engine_tvb, usm_p.user_tvb);
2163 case SNMP_SEC_ANY: /* 0 */
2164 case SNMP_SEC_V1: /* 1 */
2165 case SNMP_SEC_V2C: /* 2 */
2167 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2179 static const ber_sequence_t ScopedPDU_sequence[] = {
2180 { &hf_snmp_contextEngineID, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_SnmpEngineID },
2181 { &hf_snmp_contextName , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2182 { &hf_snmp_data , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_PDUs },
2183 { NULL, 0, 0, 0, NULL }
2187 dissect_snmp_ScopedPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2188 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2189 ScopedPDU_sequence, hf_index, ett_snmp_ScopedPDU);
2197 dissect_snmp_T_encryptedPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2198 #line 103 "snmp.cnf"
2199 tvbuff_t* crypt_tvb;
2200 offset = dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_snmp_encryptedPDU, &crypt_tvb);
2202 if( usm_p.encrypted && crypt_tvb
2204 && usm_p.user_assoc->user.privProtocol ) {
2206 const gchar* error = NULL;
2207 proto_tree* encryptedpdu_tree = proto_item_add_subtree(actx->created_item,ett_encryptedPDU);
2208 tvbuff_t* cleartext_tvb = usm_p.user_assoc->user.privProtocol(&usm_p, crypt_tvb, &error );
2210 if (! cleartext_tvb) {
2211 proto_item* cause = proto_tree_add_text(encryptedpdu_tree, crypt_tvb, 0, -1,
2212 "Failed to decrypt encryptedPDU: %s", error);
2214 expert_add_info_format(actx->pinfo, cause, PI_MALFORMED, PI_WARN,
2215 "Failed to decrypt encryptedPDU: %s", error);
2217 if (check_col(actx->pinfo->cinfo, COL_INFO))
2218 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Failed to decrypt");
2222 proto_item* decrypted_item;
2223 proto_tree* decrypted_tree;
2225 if (! check_ScopedPdu(cleartext_tvb)) {
2226 proto_item* cause = proto_tree_add_text(encryptedpdu_tree, cleartext_tvb, 0, -1,
2227 "Decrypted data not formatted as expected, wrong key?");
2229 expert_add_info_format(actx->pinfo, cause, PI_MALFORMED, PI_WARN,
2230 "Decrypted data not formatted as expected");
2232 if (check_col(actx->pinfo->cinfo, COL_INFO))
2233 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Decrypted data not formatted as expected");
2239 add_new_data_source(actx->pinfo, cleartext_tvb, "Decrypted ScopedPDU");
2241 decrypted_item = proto_tree_add_item(encryptedpdu_tree, hf_snmp_decryptedPDU,cleartext_tvb,0,-1,FALSE);
2242 decrypted_tree = proto_item_add_subtree(decrypted_item,ett_decrypted);
2243 dissect_snmp_ScopedPDU(FALSE, cleartext_tvb, 0, actx, decrypted_tree, -1);
2246 if (check_col(actx->pinfo->cinfo, COL_INFO))
2247 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: privKey Unknown");
2256 static const value_string snmp_ScopedPduData_vals[] = {
2258 { 1, "encryptedPDU" },
2262 static const ber_choice_t ScopedPduData_choice[] = {
2263 { 0, &hf_snmp_plaintext , BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_ScopedPDU },
2264 { 1, &hf_snmp_encryptedPDU , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_encryptedPDU },
2265 { 0, NULL, 0, 0, 0, NULL }
2269 dissect_snmp_ScopedPduData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2270 offset = dissect_ber_choice(actx, tree, tvb, offset,
2271 ScopedPduData_choice, hf_index, ett_snmp_ScopedPduData,
2278 static const ber_sequence_t SNMPv3Message_sequence[] = {
2279 { &hf_snmp_msgVersion , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
2280 { &hf_snmp_msgGlobalData , BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_HeaderData },
2281 { &hf_snmp_msgSecurityParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgSecurityParameters },
2282 { &hf_snmp_msgData , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_ScopedPduData },
2283 { NULL, 0, 0, 0, NULL }
2287 dissect_snmp_SNMPv3Message(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2288 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2289 SNMPv3Message_sequence, hf_index, ett_snmp_SNMPv3Message);
2291 #line 170 "snmp.cnf"
2293 if( usm_p.authenticated
2295 && usm_p.user_assoc->user.authModel ) {
2296 const gchar* error = NULL;
2297 proto_item* authen_item;
2298 proto_tree* authen_tree = proto_item_add_subtree(usm_p.auth_item,ett_authParameters);
2300 guint calc_auth_len;
2302 usm_p.authOK = usm_p.user_assoc->user.authModel->authenticate( &usm_p, &calc_auth, &calc_auth_len, &error );
2305 authen_item = proto_tree_add_text(authen_tree,tvb,0,0,"Error while verifying Message authenticity: %s", error);
2306 PROTO_ITEM_SET_GENERATED(authen_item);
2307 expert_add_info_format( actx->pinfo, authen_item, PI_MALFORMED, PI_ERROR, "Error while verifying Message authenticity: %s", error );
2312 authen_item = proto_tree_add_boolean(authen_tree, hf_snmp_msgAuthentication, tvb, 0, 0, usm_p.authOK);
2313 PROTO_ITEM_SET_GENERATED(authen_item);
2316 msg = "SNMP Authentication OK";
2319 gchar* calc_auth_str = bytestring_to_str(calc_auth,calc_auth_len,' ');
2320 proto_item_append_text(authen_item, " calculated = %s", calc_auth_str);
2321 msg = "SNMP Authentication Error";
2325 expert_add_info_format( actx->pinfo, authen_item, PI_CHECKSUM, severity, "%s", msg );
2334 static const value_string snmp_T_smux_version_vals[] = {
2341 dissect_snmp_T_smux_version(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2342 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2351 dissect_snmp_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2352 offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
2360 dissect_snmp_DisplayString(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2361 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2368 static const ber_sequence_t SimpleOpen_U_sequence[] = {
2369 { &hf_snmp_smux_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_smux_version },
2370 { &hf_snmp_identity , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_OBJECT_IDENTIFIER },
2371 { &hf_snmp_description , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_DisplayString },
2372 { &hf_snmp_password , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2373 { NULL, 0, 0, 0, NULL }
2377 dissect_snmp_SimpleOpen_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2378 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2379 SimpleOpen_U_sequence, hf_index, ett_snmp_SimpleOpen_U);
2387 dissect_snmp_SimpleOpen(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2388 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2389 hf_index, BER_CLASS_APP, 0, TRUE, dissect_snmp_SimpleOpen_U);
2395 static const value_string snmp_OpenPDU_vals[] = {
2396 { 0, "smux-simple" },
2400 static const ber_choice_t OpenPDU_choice[] = {
2401 { 0, &hf_snmp_smux_simple , BER_CLASS_APP, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_SimpleOpen },
2402 { 0, NULL, 0, 0, 0, NULL }
2406 dissect_snmp_OpenPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2407 offset = dissect_ber_choice(actx, tree, tvb, offset,
2408 OpenPDU_choice, hf_index, ett_snmp_OpenPDU,
2415 static const value_string snmp_ClosePDU_U_vals[] = {
2417 { 1, "unsupportedVersion" },
2418 { 2, "packetFormat" },
2419 { 3, "protocolError" },
2420 { 4, "internalError" },
2421 { 5, "authenticationFailure" },
2427 dissect_snmp_ClosePDU_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2428 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2437 dissect_snmp_ClosePDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2438 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2439 hf_index, BER_CLASS_APP, 1, TRUE, dissect_snmp_ClosePDU_U);
2447 dissect_snmp_INTEGER_M1_2147483647(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2448 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2455 static const value_string snmp_T_operation_vals[] = {
2464 dissect_snmp_T_operation(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2465 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2472 static const ber_sequence_t RReqPDU_U_sequence[] = {
2473 { &hf_snmp_subtree , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_ObjectName },
2474 { &hf_snmp_priority , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_M1_2147483647 },
2475 { &hf_snmp_operation , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_operation },
2476 { NULL, 0, 0, 0, NULL }
2480 dissect_snmp_RReqPDU_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2481 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2482 RReqPDU_U_sequence, hf_index, ett_snmp_RReqPDU_U);
2490 dissect_snmp_RReqPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2491 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2492 hf_index, BER_CLASS_APP, 2, TRUE, dissect_snmp_RReqPDU_U);
2498 static const value_string snmp_RRspPDU_U_vals[] = {
2505 dissect_snmp_RRspPDU_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2506 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2515 dissect_snmp_RRspPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2516 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2517 hf_index, BER_CLASS_APP, 3, TRUE, dissect_snmp_RRspPDU_U);
2523 static const value_string snmp_RegisterResponse_vals[] = {
2529 static const ber_choice_t RegisterResponse_choice[] = {
2530 { 0, &hf_snmp_rRspPDU , BER_CLASS_APP, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_RRspPDU },
2531 { 1, &hf_snmp_pDUs , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_PDUs },
2532 { 0, NULL, 0, 0, 0, NULL }
2536 dissect_snmp_RegisterResponse(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2537 offset = dissect_ber_choice(actx, tree, tvb, offset,
2538 RegisterResponse_choice, hf_index, ett_snmp_RegisterResponse,
2545 static const value_string snmp_SOutPDU_U_vals[] = {
2553 dissect_snmp_SOutPDU_U(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2554 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2563 dissect_snmp_SOutPDU(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2564 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2565 hf_index, BER_CLASS_APP, 4, TRUE, dissect_snmp_SOutPDU_U);
2571 static const value_string snmp_SMUX_PDUs_vals[] = {
2574 { 2, "registerRequest" },
2575 { 3, "registerResponse" },
2576 { 4, "commitOrRollback" },
2580 static const ber_choice_t SMUX_PDUs_choice[] = {
2581 { 0, &hf_snmp_open , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_OpenPDU },
2582 { 1, &hf_snmp_close , BER_CLASS_APP, 1, BER_FLAGS_NOOWNTAG, dissect_snmp_ClosePDU },
2583 { 2, &hf_snmp_registerRequest, BER_CLASS_APP, 2, BER_FLAGS_NOOWNTAG, dissect_snmp_RReqPDU },
2584 { 3, &hf_snmp_registerResponse, BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_RegisterResponse },
2585 { 4, &hf_snmp_commitOrRollback, BER_CLASS_APP, 4, BER_FLAGS_NOOWNTAG, dissect_snmp_SOutPDU },
2586 { 0, NULL, 0, 0, 0, NULL }
2590 dissect_snmp_SMUX_PDUs(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
2591 offset = dissect_ber_choice(actx, tree, tvb, offset,
2592 SMUX_PDUs_choice, hf_index, ett_snmp_SMUX_PDUs,
2600 static void dissect_SMUX_PDUs_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) {
2601 asn1_ctx_t asn1_ctx;
2602 asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
2603 dissect_snmp_SMUX_PDUs(FALSE, tvb, 0, &asn1_ctx, tree, hf_snmp_SMUX_PDUs_PDU);
2607 /*--- End of included file: packet-snmp-fn.c ---*/
2608 #line 1417 "packet-snmp-template.c"
2612 dissect_snmp_pdu(tvbuff_t *tvb, int offset, packet_info *pinfo,
2613 proto_tree *tree, int proto, gint ett, gboolean is_tcp)
2616 guint length_remaining;
2618 gboolean pc, ind = 0;
2621 guint message_length;
2622 int start_offset = offset;
2623 guint32 version = 0;
2626 proto_tree *snmp_tree = NULL;
2627 proto_item *item = NULL;
2628 asn1_ctx_t asn1_ctx;
2629 asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
2632 usm_p.msg_tvb = tvb;
2633 usm_p.start_offset = tvb_offset_from_real_beginning(tvb);
2634 usm_p.engine_tvb = NULL;
2635 usm_p.user_tvb = NULL;
2636 usm_p.auth_item = NULL;
2637 usm_p.auth_tvb = NULL;
2638 usm_p.auth_offset = 0;
2639 usm_p.priv_tvb = NULL;
2640 usm_p.user_assoc = NULL;
2641 usm_p.authenticated = FALSE;
2642 usm_p.encrypted = FALSE;
2645 usm_p.authOK = FALSE;
2648 * This will throw an exception if we don't have any data left.
2649 * That's what we want. (See "tcp_dissect_pdus()", which is
2650 * similar, but doesn't have to deal with ASN.1.
2651 * XXX - can we make "tcp_dissect_pdus()" provide enough
2652 * information to the "get_pdu_len" routine so that we could
2653 * have that routine deal with ASN.1, and just use
2654 * "tcp_dissect_pdus()"?)
2656 length_remaining = tvb_ensure_length_remaining(tvb, offset);
2658 /* NOTE: we have to parse the message piece by piece, since the
2659 * capture length may be less than the message length: a 'global'
2660 * parsing is likely to fail.
2664 * If this is SNMP-over-TCP, we might have to do reassembly
2665 * in order to read the "Sequence Of" header.
2667 if (is_tcp && snmp_desegment && pinfo->can_desegment) {
2669 * This is TCP, and we should, and can, do reassembly.
2671 * Is the "Sequence Of" header split across segment
2672 * boundaries? We requre at least 6 bytes for the
2673 * header, which allows for a 4-byte length (ASN.1
2676 if (length_remaining < 6) {
2677 pinfo->desegment_offset = offset;
2678 pinfo->desegment_len = 6 - length_remaining;
2681 * Return 0, which means "I didn't dissect anything
2682 * because I don't have enough data - we need
2690 * OK, try to read the "Sequence Of" header; this gets the total
2691 * length of the SNMP message.
2693 /* Set tree to 0 to not display internal BER fields if option used.*/
2694 offset = dissect_ber_identifier(pinfo, 0, tvb, offset, &class, &pc, &tag);
2695 /*Get the total octet length of the SNMP data*/
2696 offset = dissect_ber_length(pinfo, 0, tvb, offset, &len, &ind);
2697 message_length = len + 2;
2699 /*Get the SNMP version data*/
2700 offset = dissect_ber_integer(FALSE, &asn1_ctx, 0, tvb, offset, -1, &version);
2704 * If this is SNMP-over-TCP, we might have to do reassembly
2705 * to get all of this message.
2707 if (is_tcp && snmp_desegment && pinfo->can_desegment) {
2709 * Yes - is the message split across segment boundaries?
2711 if (length_remaining < message_length) {
2713 * Yes. Tell the TCP dissector where the data
2714 * for this message starts in the data it handed
2715 * us, and how many more bytes we need, and
2718 pinfo->desegment_offset = start_offset;
2719 pinfo->desegment_len =
2720 message_length - length_remaining;
2723 * Return 0, which means "I didn't dissect anything
2724 * because I don't have enough data - we need
2731 next_tvb_init(&var_list);
2733 if (check_col(pinfo->cinfo, COL_PROTOCOL)) {
2734 col_set_str(pinfo->cinfo, COL_PROTOCOL,
2735 proto_get_protocol_short_name(find_protocol_by_id(proto)));
2739 item = proto_tree_add_item(tree, proto, tvb, start_offset,
2740 message_length, FALSE);
2741 snmp_tree = proto_item_add_subtree(item, ett);
2747 offset = dissect_snmp_Message(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2750 offset = dissect_snmp_Messagev2u(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2754 offset = dissect_snmp_SNMPv3Message(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2758 * Return the length remaining in the tvbuff, so
2759 * if this is SNMP-over-TCP, our caller thinks there's
2760 * nothing left to dissect.
2762 proto_tree_add_text(snmp_tree, tvb, offset, -1,"Unknown version");
2763 return length_remaining;
2767 /* There may be appended data after the SNMP data, so treat as raw
2768 * data which needs to be dissected in case of UDP as UDP is PDU oriented.
2770 if((!is_tcp) && (length_remaining > (guint)offset)) {
2771 next_tvb = tvb_new_subset_remaining(tvb, offset);
2772 call_dissector(data_handle, next_tvb, pinfo, tree);
2775 next_tvb_call(&var_list, pinfo, tree, NULL, data_handle);
2782 dissect_snmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2784 conversation_t *conversation;
2793 * See if this looks like SNMP or not. if not, return 0 so
2794 * wireshark can try som other dissector instead.
2796 /* All SNMP packets are BER encoded and consist of a SEQUENCE
2797 * that spans the entire PDU. The first item is an INTEGER that
2798 * has the values 0-2 (version 1-3).
2799 * if not it is not snmp.
2801 /* SNMP starts with a SEQUENCE */
2802 offset = get_ber_identifier(tvb, 0, &tmp_class, &tmp_pc, &tmp_tag);
2803 if((tmp_class!=BER_CLASS_UNI)||(tmp_tag!=BER_UNI_TAG_SEQUENCE)){
2806 /* then comes a length which spans the rest of the tvb */
2807 offset = get_ber_length(tvb, offset, &tmp_length, &tmp_ind);
2808 /* if(tmp_length!=(guint32)tvb_reported_length_remaining(tvb, offset)){
2809 * Losen the heuristic a bit to handle the case where data has intentionally
2810 * been added after the snmp PDU ( UDP case)
2812 if ( pinfo->ptype == PT_UDP ){
2813 if(tmp_length>(guint32)tvb_reported_length_remaining(tvb, offset)){
2817 if(tmp_length!=(guint32)tvb_reported_length_remaining(tvb, offset)){
2821 /* then comes an INTEGER (version)*/
2822 offset = get_ber_identifier(tvb, offset, &tmp_class, &tmp_pc, &tmp_tag);
2823 if((tmp_class!=BER_CLASS_UNI)||(tmp_tag!=BER_UNI_TAG_INTEGER)){
2826 /* do we need to test that version is 0 - 2 (version1-3) ? */
2830 * The first SNMP packet goes to the SNMP port; the second one
2831 * may come from some *other* port, but goes back to the same
2832 * IP address and port as the ones from which the first packet
2833 * came; all subsequent packets presumably go between those two
2834 * IP addresses and ports.
2836 * If this packet went to the SNMP port, we check to see if
2837 * there's already a conversation with one address/port pair
2838 * matching the source IP address and port of this packet,
2839 * the other address matching the destination IP address of this
2840 * packet, and any destination port.
2842 * If not, we create one, with its address 1/port 1 pair being
2843 * the source address/port of this packet, its address 2 being
2844 * the destination address of this packet, and its port 2 being
2845 * wildcarded, and give it the SNMP dissector as a dissector.
2847 if (pinfo->destport == UDP_PORT_SNMP) {
2848 conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst, PT_UDP,
2849 pinfo->srcport, 0, NO_PORT_B);
2850 if( (conversation == NULL) || (conversation->dissector_handle!=snmp_handle) ){
2851 conversation = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst, PT_UDP,
2852 pinfo->srcport, 0, NO_PORT2);
2853 conversation_set_dissector(conversation, snmp_handle);
2857 return dissect_snmp_pdu(tvb, 0, pinfo, tree, proto_snmp, ett_snmp, FALSE);
2860 dissect_snmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2865 while (tvb_reported_length_remaining(tvb, offset) > 0) {
2866 message_len = dissect_snmp_pdu(tvb, 0, pinfo, tree,
2867 proto_snmp, ett_snmp, TRUE);
2868 if (message_len == 0) {
2870 * We don't have all the data for that message,
2871 * so we need to do desegmentation;
2872 * "dissect_snmp_pdu()" has set that up.
2876 offset += message_len;
2881 dissect_smux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2883 proto_tree *smux_tree = NULL;
2884 proto_item *item = NULL;
2886 next_tvb_init(&var_list);
2888 col_set_str(pinfo->cinfo, COL_PROTOCOL, "SMUX");
2891 item = proto_tree_add_item(tree, proto_smux, tvb, 0, -1, FALSE);
2892 smux_tree = proto_item_add_subtree(item, ett_smux);
2895 dissect_SMUX_PDUs_PDU(tvb, pinfo, tree);
2900 MD5 Password to Key Algorithm
2903 static void snmp_usm_password_to_key_md5(const guint8 *password,
2905 const guint8 *engineID,
2909 guint8 *cp, password_buf[64];
2910 guint32 password_index = 0;
2911 guint32 count = 0, i;
2913 md5_init(&MD); /* initialize MD5 */
2915 /**********************************************/
2916 /* Use while loop until we've done 1 Megabyte */
2917 /**********************************************/
2918 while (count < 1048576) {
2920 for (i = 0; i < 64; i++) {
2921 /*************************************************/
2922 /* Take the next octet of the password, wrapping */
2923 /* to the beginning of the password as necessary.*/
2924 /*************************************************/
2925 *cp++ = password[password_index++ % passwordlen];
2927 md5_append(&MD, password_buf, 64);
2930 md5_finish(&MD, key1); /* tell MD5 we're done */
2932 /*****************************************************/
2933 /* Now localize the key with the engineID and pass */
2934 /* through MD5 to produce final key */
2935 /* May want to ensure that engineLength <= 32, */
2936 /* otherwise need to use a buffer larger than 64 */
2937 /*****************************************************/
2940 md5_append(&MD, key1, 16);
2941 md5_append(&MD, engineID, engineLength);
2942 md5_append(&MD, key1, 16);
2943 md5_finish(&MD, key);
2952 SHA1 Password to Key Algorithm COPIED from RFC 3414 A.2.2
2955 static void snmp_usm_password_to_key_sha1(const guint8 *password,
2957 const guint8 *engineID,
2961 guint8 *cp, password_buf[72];
2962 guint32 password_index = 0;
2963 guint32 count = 0, i;
2965 sha1_starts(&SH); /* initialize SHA */
2967 /**********************************************/
2968 /* Use while loop until we've done 1 Megabyte */
2969 /**********************************************/
2970 while (count < 1048576) {
2972 for (i = 0; i < 64; i++) {
2973 /*************************************************/
2974 /* Take the next octet of the password, wrapping */
2975 /* to the beginning of the password as necessary.*/
2976 /*************************************************/
2977 *cp++ = password[password_index++ % passwordlen];
2979 sha1_update (&SH, password_buf, 64);
2982 sha1_finish(&SH, key);
2984 /*****************************************************/
2985 /* Now localize the key with the engineID and pass */
2986 /* through SHA to produce final key */
2987 /* May want to ensure that engineLength <= 32, */
2988 /* otherwise need to use a buffer larger than 72 */
2989 /*****************************************************/
2990 memcpy(password_buf, key, 20);
2991 memcpy(password_buf+20, engineID, engineLength);
2992 memcpy(password_buf+20+engineLength, key, 20);
2995 sha1_update(&SH, password_buf, 40+engineLength);
2996 sha1_finish(&SH, key);
3001 static void process_prefs(void) {}
3003 static void* snmp_users_copy_cb(void* dest, const void* orig, unsigned len _U_) {
3004 const snmp_ue_assoc_t* o = orig;
3005 snmp_ue_assoc_t* d = dest;
3007 d->auth_model = o->auth_model;
3008 d->user.authModel = auth_models[o->auth_model];
3010 d->priv_proto = o->priv_proto;
3011 d->user.privProtocol = priv_protos[o->priv_proto];
3013 d->user.userName.data = g_memdup(o->user.userName.data,o->user.userName.len);
3014 d->user.userName.len = o->user.userName.len;
3016 d->user.authPassword.data = o->user.authPassword.data ? g_memdup(o->user.authPassword.data,o->user.authPassword.len) : NULL;
3017 d->user.authPassword.len = o->user.authPassword.len;
3019 d->user.privPassword.data = o->user.privPassword.data ? g_memdup(o->user.privPassword.data,o->user.privPassword.len) : NULL;
3020 d->user.privPassword.len = o->user.privPassword.len;
3022 d->engine.len = o->engine.len;
3023 if (o->engine.data) {
3024 d->engine.data = g_memdup(o->engine.data,o->engine.len);
3027 d->user.authKey.data = o->user.authKey.data ? g_memdup(o->user.authKey.data,o->user.authKey.len) : NULL;
3028 d->user.authKey.len = o->user.authKey.len;
3030 d->user.privKey.data = o->user.privKey.data ? g_memdup(o->user.privKey.data,o->user.privKey.len) : NULL;
3031 d->user.privKey.len = o->user.privKey.len;
3036 static void snmp_users_free_cb(void* p) {
3037 snmp_ue_assoc_t* ue = p;
3038 g_free(ue->user.userName.data);
3039 g_free(ue->user.authPassword.data);
3040 g_free(ue->user.privPassword.data);
3041 g_free(ue->user.authKey.data);
3042 g_free(ue->user.privKey.data);
3043 g_free(ue->engine.data);
3046 static void snmp_users_update_cb(void* p _U_, const char** err) {
3047 snmp_ue_assoc_t* ue = p;
3048 GString* es = g_string_new("");
3052 if (! ue->user.userName.len) g_string_append(es,"no userName, ");
3055 g_string_truncate(es,es->len-2);
3056 *err = ep_strdup(es->str);
3059 g_string_free(es,TRUE);
3064 UAT_LSTRING_CB_DEF(snmp_users,userName,snmp_ue_assoc_t,user.userName.data,user.userName.len)
3065 UAT_LSTRING_CB_DEF(snmp_users,authPassword,snmp_ue_assoc_t,user.authPassword.data,user.authPassword.len)
3066 UAT_LSTRING_CB_DEF(snmp_users,privPassword,snmp_ue_assoc_t,user.privPassword.data,user.privPassword.len)
3067 UAT_BUFFER_CB_DEF(snmp_users,engine_id,snmp_ue_assoc_t,engine.data,engine.len)
3068 UAT_VS_DEF(snmp_users,auth_model,snmp_ue_assoc_t,0,"MD5")
3069 UAT_VS_DEF(snmp_users,priv_proto,snmp_ue_assoc_t,0,"DES")
3071 /*--- proto_register_snmp -------------------------------------------*/
3072 void proto_register_snmp(void) {
3073 /* List of fields */
3074 static hf_register_info hf[] = {
3075 { &hf_snmp_v3_flags_auth,
3076 { "Authenticated", "snmp.v3.flags.auth", FT_BOOLEAN, 8,
3077 TFS(&tfs_set_notset), TH_AUTH, NULL, HFILL }},
3078 { &hf_snmp_v3_flags_crypt,
3079 { "Encrypted", "snmp.v3.flags.crypt", FT_BOOLEAN, 8,
3080 TFS(&tfs_set_notset), TH_CRYPT, NULL, HFILL }},
3081 { &hf_snmp_v3_flags_report,
3082 { "Reportable", "snmp.v3.flags.report", FT_BOOLEAN, 8,
3083 TFS(&tfs_set_notset), TH_REPORT, NULL, HFILL }},
3084 { &hf_snmp_engineid_conform, {
3085 "Engine ID Conformance", "snmp.engineid.conform", FT_BOOLEAN, 8,
3086 TFS(&tfs_snmp_engineid_conform), F_SNMP_ENGINEID_CONFORM, "Engine ID RFC3411 Conformance", HFILL }},
3087 { &hf_snmp_engineid_enterprise, {
3088 "Engine Enterprise ID", "snmp.engineid.enterprise", FT_UINT32, BASE_DEC,
3089 VALS(sminmpec_values), 0, NULL, HFILL }},
3090 { &hf_snmp_engineid_format, {
3091 "Engine ID Format", "snmp.engineid.format", FT_UINT8, BASE_DEC,
3092 VALS(snmp_engineid_format_vals), 0, NULL, HFILL }},
3093 { &hf_snmp_engineid_ipv4, {
3094 "Engine ID Data: IPv4 address", "snmp.engineid.ipv4", FT_IPv4, BASE_NONE,
3095 NULL, 0, NULL, HFILL }},
3096 { &hf_snmp_engineid_ipv6, {
3097 "Engine ID Data: IPv6 address", "snmp.engineid.ipv6", FT_IPv6, BASE_NONE,
3098 NULL, 0, NULL, HFILL }},
3099 { &hf_snmp_engineid_mac, {
3100 "Engine ID Data: MAC address", "snmp.engineid.mac", FT_ETHER, BASE_NONE,
3101 NULL, 0, NULL, HFILL }},
3102 { &hf_snmp_engineid_text, {
3103 "Engine ID Data: Text", "snmp.engineid.text", FT_STRING, BASE_NONE,
3104 NULL, 0, NULL, HFILL }},
3105 { &hf_snmp_engineid_time, {
3106 "Engine ID Data: Time", "snmp.engineid.time", FT_ABSOLUTE_TIME, BASE_NONE,
3107 NULL, 0, NULL, HFILL }},
3108 { &hf_snmp_engineid_data, {
3109 "Engine ID Data", "snmp.engineid.data", FT_BYTES, BASE_NONE,
3110 NULL, 0, NULL, HFILL }},
3111 { &hf_snmp_msgAuthentication, {
3112 "Authentication", "snmp.v3.auth", FT_BOOLEAN, BASE_NONE,
3113 TFS(&auth_flags), 0, NULL, HFILL }},
3114 { &hf_snmp_decryptedPDU, {
3115 "Decrypted ScopedPDU", "snmp.decrypted_pdu", FT_BYTES, BASE_NONE,
3116 NULL, 0, "Decrypted PDU", HFILL }},
3117 { &hf_snmp_noSuchObject, { "noSuchObject", "snmp.noSuchObject", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL }},
3118 { &hf_snmp_noSuchInstance, { "noSuchInstance", "snmp.noSuchInstance", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL }},
3119 { &hf_snmp_endOfMibView, { "endOfMibView", "snmp.endOfMibView", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL }},
3120 { &hf_snmp_unSpecified, { "unSpecified", "snmp.unSpecified", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL }},
3122 { &hf_snmp_integer32_value, { "Value (Integer32)", "snmp.value.int", FT_INT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3123 { &hf_snmp_octetstring_value, { "Value (OctetString)", "snmp.value.octets", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
3124 { &hf_snmp_oid_value, { "Value (OID)", "snmp.value.oid", FT_OID, BASE_NONE, NULL, 0, NULL, HFILL }},
3125 { &hf_snmp_null_value, { "Value (Null)", "snmp.value.null", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL }},
3126 { &hf_snmp_ipv4_value, { "Value (IpAddress)", "snmp.value.ipv4", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL }},
3127 { &hf_snmp_ipv6_value, { "Value (IpAddress)", "snmp.value.ipv6", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL }},
3128 { &hf_snmp_anyaddress_value, { "Value (IpAddress)", "snmp.value.addr", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
3129 { &hf_snmp_unsigned32_value, { "Value (Unsigned32)", "snmp.value.u32", FT_INT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3130 { &hf_snmp_gauge32_value, { "Value (Gauge32)", "snmp.value.g32", FT_INT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3131 { &hf_snmp_unknown_value, { "Value (Unknown)", "snmp.value.unk", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
3132 { &hf_snmp_counter_value, { "Value (Counter32)", "snmp.value.counter", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3133 { &hf_snmp_big_counter_value, { "Value (Counter64)", "snmp.value.counter", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3134 { &hf_snmp_nsap_value, { "Value (NSAP)", "snmp.value.nsap", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3135 { &hf_snmp_timeticks_value, { "Value (Timeticks)", "snmp.value.timeticks", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3136 { &hf_snmp_opaque_value, { "Value (Opaque)", "snmp.value.opaque", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
3137 { &hf_snmp_objectname, { "Object Name", "snmp.name", FT_OID, BASE_NONE, NULL, 0, NULL, HFILL }},
3138 { &hf_snmp_scalar_instance_index, { "Scalar Instance Index", "snmp.name.index", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL }},
3142 /*--- Included file: packet-snmp-hfarr.c ---*/
3143 #line 1 "packet-snmp-hfarr.c"
3144 { &hf_snmp_SMUX_PDUs_PDU,
3145 { "SMUX-PDUs", "snmp.SMUX_PDUs",
3146 FT_UINT32, BASE_DEC, VALS(snmp_SMUX_PDUs_vals), 0,
3147 "snmp.SMUX_PDUs", HFILL }},
3149 { "version", "snmp.version",
3150 FT_INT32, BASE_DEC, VALS(snmp_Version_vals), 0,
3151 "snmp.Version", HFILL }},
3152 { &hf_snmp_community,
3153 { "community", "snmp.community",
3154 FT_STRING, BASE_NONE, NULL, 0,
3155 "snmp.OCTET_STRING", HFILL }},
3157 { "data", "snmp.data",
3158 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3159 "snmp.PDUs", HFILL }},
3160 { &hf_snmp_parameters,
3161 { "parameters", "snmp.parameters",
3162 FT_BYTES, BASE_NONE, NULL, 0,
3163 "snmp.OCTET_STRING", HFILL }},
3165 { "datav2u", "snmp.datav2u",
3166 FT_UINT32, BASE_DEC, VALS(snmp_T_datav2u_vals), 0,
3167 "snmp.T_datav2u", HFILL }},
3168 { &hf_snmp_v2u_plaintext,
3169 { "plaintext", "snmp.plaintext",
3170 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3171 "snmp.PDUs", HFILL }},
3172 { &hf_snmp_encrypted,
3173 { "encrypted", "snmp.encrypted",
3174 FT_BYTES, BASE_NONE, NULL, 0,
3175 "snmp.OCTET_STRING", HFILL }},
3176 { &hf_snmp_msgAuthoritativeEngineID,
3177 { "msgAuthoritativeEngineID", "snmp.msgAuthoritativeEngineID",
3178 FT_BYTES, BASE_NONE, NULL, 0,
3179 "snmp.T_msgAuthoritativeEngineID", HFILL }},
3180 { &hf_snmp_msgAuthoritativeEngineBoots,
3181 { "msgAuthoritativeEngineBoots", "snmp.msgAuthoritativeEngineBoots",
3182 FT_UINT32, BASE_DEC, NULL, 0,
3183 "snmp.T_msgAuthoritativeEngineBoots", HFILL }},
3184 { &hf_snmp_msgAuthoritativeEngineTime,
3185 { "msgAuthoritativeEngineTime", "snmp.msgAuthoritativeEngineTime",
3186 FT_UINT32, BASE_DEC, NULL, 0,
3187 "snmp.T_msgAuthoritativeEngineTime", HFILL }},
3188 { &hf_snmp_msgUserName,
3189 { "msgUserName", "snmp.msgUserName",
3190 FT_STRING, BASE_NONE, NULL, 0,
3191 "snmp.T_msgUserName", HFILL }},
3192 { &hf_snmp_msgAuthenticationParameters,
3193 { "msgAuthenticationParameters", "snmp.msgAuthenticationParameters",
3194 FT_BYTES, BASE_NONE, NULL, 0,
3195 "snmp.T_msgAuthenticationParameters", HFILL }},
3196 { &hf_snmp_msgPrivacyParameters,
3197 { "msgPrivacyParameters", "snmp.msgPrivacyParameters",
3198 FT_BYTES, BASE_NONE, NULL, 0,
3199 "snmp.T_msgPrivacyParameters", HFILL }},
3200 { &hf_snmp_msgVersion,
3201 { "msgVersion", "snmp.msgVersion",
3202 FT_INT32, BASE_DEC, VALS(snmp_Version_vals), 0,
3203 "snmp.Version", HFILL }},
3204 { &hf_snmp_msgGlobalData,
3205 { "msgGlobalData", "snmp.msgGlobalData",
3206 FT_NONE, BASE_NONE, NULL, 0,
3207 "snmp.HeaderData", HFILL }},
3208 { &hf_snmp_msgSecurityParameters,
3209 { "msgSecurityParameters", "snmp.msgSecurityParameters",
3210 FT_BYTES, BASE_NONE, NULL, 0,
3211 "snmp.T_msgSecurityParameters", HFILL }},
3213 { "msgData", "snmp.msgData",
3214 FT_UINT32, BASE_DEC, VALS(snmp_ScopedPduData_vals), 0,
3215 "snmp.ScopedPduData", HFILL }},
3217 { "msgID", "snmp.msgID",
3218 FT_UINT32, BASE_DEC, NULL, 0,
3219 "snmp.INTEGER_0_2147483647", HFILL }},
3220 { &hf_snmp_msgMaxSize,
3221 { "msgMaxSize", "snmp.msgMaxSize",
3222 FT_UINT32, BASE_DEC, NULL, 0,
3223 "snmp.INTEGER_484_2147483647", HFILL }},
3224 { &hf_snmp_msgFlags,
3225 { "msgFlags", "snmp.msgFlags",
3226 FT_BYTES, BASE_NONE, NULL, 0,
3227 "snmp.T_msgFlags", HFILL }},
3228 { &hf_snmp_msgSecurityModel,
3229 { "msgSecurityModel", "snmp.msgSecurityModel",
3230 FT_UINT32, BASE_DEC, VALS(sec_models), 0,
3231 "snmp.T_msgSecurityModel", HFILL }},
3232 { &hf_snmp_plaintext,
3233 { "plaintext", "snmp.plaintext",
3234 FT_NONE, BASE_NONE, NULL, 0,
3235 "snmp.ScopedPDU", HFILL }},
3236 { &hf_snmp_encryptedPDU,
3237 { "encryptedPDU", "snmp.encryptedPDU",
3238 FT_BYTES, BASE_NONE, NULL, 0,
3239 "snmp.T_encryptedPDU", HFILL }},
3240 { &hf_snmp_contextEngineID,
3241 { "contextEngineID", "snmp.contextEngineID",
3242 FT_BYTES, BASE_NONE, NULL, 0,
3243 "snmp.SnmpEngineID", HFILL }},
3244 { &hf_snmp_contextName,
3245 { "contextName", "snmp.contextName",
3246 FT_BYTES, BASE_NONE, NULL, 0,
3247 "snmp.OCTET_STRING", HFILL }},
3248 { &hf_snmp_get_request,
3249 { "get-request", "snmp.get_request",
3250 FT_NONE, BASE_NONE, NULL, 0,
3251 "snmp.GetRequest_PDU", HFILL }},
3252 { &hf_snmp_get_next_request,
3253 { "get-next-request", "snmp.get_next_request",
3254 FT_NONE, BASE_NONE, NULL, 0,
3255 "snmp.GetNextRequest_PDU", HFILL }},
3256 { &hf_snmp_get_response,
3257 { "get-response", "snmp.get_response",
3258 FT_NONE, BASE_NONE, NULL, 0,
3259 "snmp.GetResponse_PDU", HFILL }},
3260 { &hf_snmp_set_request,
3261 { "set-request", "snmp.set_request",
3262 FT_NONE, BASE_NONE, NULL, 0,
3263 "snmp.SetRequest_PDU", HFILL }},
3265 { "trap", "snmp.trap",
3266 FT_NONE, BASE_NONE, NULL, 0,
3267 "snmp.Trap_PDU", HFILL }},
3268 { &hf_snmp_getBulkRequest,
3269 { "getBulkRequest", "snmp.getBulkRequest",
3270 FT_NONE, BASE_NONE, NULL, 0,
3271 "snmp.GetBulkRequest_PDU", HFILL }},
3272 { &hf_snmp_informRequest,
3273 { "informRequest", "snmp.informRequest",
3274 FT_NONE, BASE_NONE, NULL, 0,
3275 "snmp.InformRequest_PDU", HFILL }},
3276 { &hf_snmp_sNMPv2_Trap,
3277 { "sNMPv2-Trap", "snmp.sNMPv2_Trap",
3278 FT_NONE, BASE_NONE, NULL, 0,
3279 "snmp.SNMPv2_Trap_PDU", HFILL }},
3281 { "report", "snmp.report",
3282 FT_NONE, BASE_NONE, NULL, 0,
3283 "snmp.Report_PDU", HFILL }},
3284 { &hf_snmp_request_id,
3285 { "request-id", "snmp.request_id",
3286 FT_INT32, BASE_DEC, NULL, 0,
3287 "snmp.INTEGER", HFILL }},
3288 { &hf_snmp_error_status,
3289 { "error-status", "snmp.error_status",
3290 FT_INT32, BASE_DEC, VALS(snmp_T_error_status_vals), 0,
3291 "snmp.T_error_status", HFILL }},
3292 { &hf_snmp_error_index,
3293 { "error-index", "snmp.error_index",
3294 FT_INT32, BASE_DEC, NULL, 0,
3295 "snmp.INTEGER", HFILL }},
3296 { &hf_snmp_variable_bindings,
3297 { "variable-bindings", "snmp.variable_bindings",
3298 FT_UINT32, BASE_DEC, NULL, 0,
3299 "snmp.VarBindList", HFILL }},
3300 { &hf_snmp_bulkPDU_request_id,
3301 { "request-id", "snmp.request_id",
3302 FT_INT32, BASE_DEC, NULL, 0,
3303 "snmp.Integer32", HFILL }},
3304 { &hf_snmp_non_repeaters,
3305 { "non-repeaters", "snmp.non_repeaters",
3306 FT_UINT32, BASE_DEC, NULL, 0,
3307 "snmp.INTEGER_0_2147483647", HFILL }},
3308 { &hf_snmp_max_repetitions,
3309 { "max-repetitions", "snmp.max_repetitions",
3310 FT_UINT32, BASE_DEC, NULL, 0,
3311 "snmp.INTEGER_0_2147483647", HFILL }},
3312 { &hf_snmp_enterprise,
3313 { "enterprise", "snmp.enterprise",
3314 FT_OID, BASE_NONE, NULL, 0,
3315 "snmp.EnterpriseOID", HFILL }},
3316 { &hf_snmp_agent_addr,
3317 { "agent-addr", "snmp.agent_addr",
3318 FT_IPv4, BASE_NONE, NULL, 0,
3319 "snmp.NetworkAddress", HFILL }},
3320 { &hf_snmp_generic_trap,
3321 { "generic-trap", "snmp.generic_trap",
3322 FT_INT32, BASE_DEC, VALS(snmp_T_generic_trap_vals), 0,
3323 "snmp.T_generic_trap", HFILL }},
3324 { &hf_snmp_specific_trap,
3325 { "specific-trap", "snmp.specific_trap",
3326 FT_INT32, BASE_DEC, NULL, 0,
3327 "snmp.INTEGER", HFILL }},
3328 { &hf_snmp_time_stamp,
3329 { "time-stamp", "snmp.time_stamp",
3330 FT_UINT32, BASE_DEC, NULL, 0,
3331 "snmp.TimeTicks", HFILL }},
3333 { "name", "snmp.name",
3334 FT_OID, BASE_NONE, NULL, 0,
3335 "snmp.ObjectName", HFILL }},
3336 { &hf_snmp_valueType,
3337 { "valueType", "snmp.valueType",
3338 FT_NONE, BASE_NONE, NULL, 0,
3339 "snmp.NULL", HFILL }},
3340 { &hf_snmp_VarBindList_item,
3341 { "VarBind", "snmp.VarBind",
3342 FT_NONE, BASE_NONE, NULL, 0,
3343 "snmp.VarBind", HFILL }},
3345 { "open", "snmp.open",
3346 FT_UINT32, BASE_DEC, VALS(snmp_OpenPDU_vals), 0,
3347 "snmp.OpenPDU", HFILL }},
3349 { "close", "snmp.close",
3350 FT_INT32, BASE_DEC, VALS(snmp_ClosePDU_U_vals), 0,
3351 "snmp.ClosePDU", HFILL }},
3352 { &hf_snmp_registerRequest,
3353 { "registerRequest", "snmp.registerRequest",
3354 FT_NONE, BASE_NONE, NULL, 0,
3355 "snmp.RReqPDU", HFILL }},
3356 { &hf_snmp_registerResponse,
3357 { "registerResponse", "snmp.registerResponse",
3358 FT_UINT32, BASE_DEC, VALS(snmp_RegisterResponse_vals), 0,
3359 "snmp.RegisterResponse", HFILL }},
3360 { &hf_snmp_commitOrRollback,
3361 { "commitOrRollback", "snmp.commitOrRollback",
3362 FT_INT32, BASE_DEC, VALS(snmp_SOutPDU_U_vals), 0,
3363 "snmp.SOutPDU", HFILL }},
3365 { "rRspPDU", "snmp.rRspPDU",
3366 FT_INT32, BASE_DEC, VALS(snmp_RRspPDU_U_vals), 0,
3367 "snmp.RRspPDU", HFILL }},
3369 { "pDUs", "snmp.pDUs",
3370 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3371 "snmp.PDUs", HFILL }},
3372 { &hf_snmp_smux_simple,
3373 { "smux-simple", "snmp.smux_simple",
3374 FT_NONE, BASE_NONE, NULL, 0,
3375 "snmp.SimpleOpen", HFILL }},
3376 { &hf_snmp_smux_version,
3377 { "smux-version", "snmp.smux_version",
3378 FT_INT32, BASE_DEC, VALS(snmp_T_smux_version_vals), 0,
3379 "snmp.T_smux_version", HFILL }},
3380 { &hf_snmp_identity,
3381 { "identity", "snmp.identity",
3382 FT_OID, BASE_NONE, NULL, 0,
3383 "snmp.OBJECT_IDENTIFIER", HFILL }},
3384 { &hf_snmp_description,
3385 { "description", "snmp.description",
3386 FT_BYTES, BASE_NONE, NULL, 0,
3387 "snmp.DisplayString", HFILL }},
3388 { &hf_snmp_password,
3389 { "password", "snmp.password",
3390 FT_BYTES, BASE_NONE, NULL, 0,
3391 "snmp.OCTET_STRING", HFILL }},
3393 { "subtree", "snmp.subtree",
3394 FT_OID, BASE_NONE, NULL, 0,
3395 "snmp.ObjectName", HFILL }},
3396 { &hf_snmp_priority,
3397 { "priority", "snmp.priority",
3398 FT_INT32, BASE_DEC, NULL, 0,
3399 "snmp.INTEGER_M1_2147483647", HFILL }},
3400 { &hf_snmp_operation,
3401 { "operation", "snmp.operation",
3402 FT_INT32, BASE_DEC, VALS(snmp_T_operation_vals), 0,
3403 "snmp.T_operation", HFILL }},
3405 /*--- End of included file: packet-snmp-hfarr.c ---*/
3406 #line 1950 "packet-snmp-template.c"
3409 /* List of subtrees */
3410 static gint *ett[] = {
3416 &ett_authParameters,
3421 &ett_decoding_error,
3423 /*--- Included file: packet-snmp-ettarr.c ---*/
3424 #line 1 "packet-snmp-ettarr.c"
3426 &ett_snmp_Messagev2u,
3427 &ett_snmp_T_datav2u,
3428 &ett_snmp_UsmSecurityParameters,
3429 &ett_snmp_SNMPv3Message,
3430 &ett_snmp_HeaderData,
3431 &ett_snmp_ScopedPduData,
3432 &ett_snmp_ScopedPDU,
3436 &ett_snmp_Trap_PDU_U,
3438 &ett_snmp_VarBindList,
3439 &ett_snmp_SMUX_PDUs,
3440 &ett_snmp_RegisterResponse,
3442 &ett_snmp_SimpleOpen_U,
3443 &ett_snmp_RReqPDU_U,
3445 /*--- End of included file: packet-snmp-ettarr.c ---*/
3446 #line 1966 "packet-snmp-template.c"
3448 module_t *snmp_module;
3449 static uat_field_t users_fields[] = {
3450 UAT_FLD_BUFFER(snmp_users,engine_id,"Engine ID","Engine-id for this entry (empty = any)"),
3451 UAT_FLD_LSTRING(snmp_users,userName,"Username","The username"),
3452 UAT_FLD_VS(snmp_users,auth_model,"Authentication model",auth_types,"Algorithm to be used for authentication."),
3453 UAT_FLD_LSTRING(snmp_users,authPassword,"Password","The password used for authenticating packets for this entry"),
3454 UAT_FLD_VS(snmp_users,priv_proto,"Privacy protocol",priv_types,"Algorithm to be used for privacy."),
3455 UAT_FLD_LSTRING(snmp_users,privPassword,"Privacy password","The password used for encrypting packets for this entry"),
3459 assocs_uat = uat_new("SNMP Users",
3460 sizeof(snmp_ue_assoc_t),
3466 "ChSNMPUsersSection",
3468 snmp_users_update_cb,
3472 /* Register protocol */
3473 proto_snmp = proto_register_protocol(PNAME, PSNAME, PFNAME);
3474 new_register_dissector("snmp", dissect_snmp, proto_snmp);
3476 /* Register fields and subtrees */
3477 proto_register_field_array(proto_snmp, hf, array_length(hf));
3478 proto_register_subtree_array(ett, array_length(ett));
3481 /* Register configuration preferences */
3482 snmp_module = prefs_register_protocol(proto_snmp, process_prefs);
3483 prefs_register_bool_preference(snmp_module, "display_oid",
3484 "Show SNMP OID in info column",
3485 "Whether the SNMP OID should be shown in the info column",
3488 prefs_register_obsolete_preference(snmp_module, "mib_modules");
3489 prefs_register_obsolete_preference(snmp_module, "users_file");
3491 prefs_register_bool_preference(snmp_module, "desegment",
3492 "Reassemble SNMP-over-TCP messages\nspanning multiple TCP segments",
3493 "Whether the SNMP dissector should reassemble messages spanning multiple TCP segments."
3494 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
3497 prefs_register_bool_preference(snmp_module, "var_in_tree",
3498 "Display dissected variables inside SNMP tree",
3499 "ON - display dissected variables inside SNMP tree, OFF - display dissected variables in root tree after SNMP",
3502 prefs_register_uat_preference(snmp_module, "users_table",
3504 "Table of engine-user associations used for authentication and decryption",
3508 prefs_register_static_text_preference(snmp_module, "info_mibs",
3509 "MIB settings can be changed in the Name Resolution preferences",
3510 "MIB settings can be changed in the Name Resolution preferences");
3513 value_sub_dissectors_table = register_dissector_table("snmp.variable_oid","SNMP Variable OID", FT_STRING, BASE_NONE);
3515 register_init_routine(renew_ue_cache);
3519 /*--- proto_reg_handoff_snmp ---------------------------------------*/
3520 void proto_reg_handoff_snmp(void) {
3521 dissector_handle_t snmp_tcp_handle;
3523 snmp_handle = find_dissector("snmp");
3525 dissector_add("udp.port", UDP_PORT_SNMP, snmp_handle);
3526 dissector_add("udp.port", UDP_PORT_SNMP_TRAP, snmp_handle);
3527 dissector_add("udp.port", UDP_PORT_SNMP_PATROL, snmp_handle);
3528 dissector_add("ethertype", ETHERTYPE_SNMP, snmp_handle);
3529 dissector_add("ipx.socket", IPX_SOCKET_SNMP_AGENT, snmp_handle);
3530 dissector_add("ipx.socket", IPX_SOCKET_SNMP_SINK, snmp_handle);
3531 dissector_add("hpext.dxsap", HPEXT_SNMP, snmp_handle);
3533 snmp_tcp_handle = create_dissector_handle(dissect_snmp_tcp, proto_snmp);
3534 dissector_add("tcp.port", TCP_PORT_SNMP, snmp_tcp_handle);
3535 dissector_add("tcp.port", TCP_PORT_SNMP_TRAP, snmp_tcp_handle);
3537 data_handle = find_dissector("data");
3540 * Process preference settings.
3542 * We can't do this in the register routine, as preferences aren't
3543 * read until all dissector register routines have been called (so
3544 * that all dissector preferences have been registered).
3551 proto_register_smux(void)
3553 static hf_register_info hf[] = {
3555 { "Version", "smux.version", FT_UINT8, BASE_DEC, NULL,
3556 0x0, NULL, HFILL }},
3558 { "PDU type", "smux.pdutype", FT_UINT8, BASE_DEC, VALS(smux_types),
3559 0x0, NULL, HFILL }},
3561 static gint *ett[] = {
3565 proto_smux = proto_register_protocol("SNMP Multiplex Protocol",
3567 proto_register_field_array(proto_smux, hf, array_length(hf));
3568 proto_register_subtree_array(ett, array_length(ett));
3573 proto_reg_handoff_smux(void)
3575 dissector_handle_t smux_handle;
3577 smux_handle = create_dissector_handle(dissect_smux, proto_smux);
3578 dissector_add("tcp.port", TCP_PORT_SMUX, smux_handle);