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)
66 #include <epan/packet.h>
67 #include <epan/strutil.h>
68 #include <epan/conversation.h>
69 #include <epan/etypes.h>
70 #include <epan/prefs.h>
71 #include <epan/sminmpec.h>
72 #include <epan/emem.h>
73 #include <epan/next_tvb.h>
75 #include <epan/asn1.h>
76 #include "packet-ipx.h"
77 #include "packet-hpext.h"
80 #include "packet-ber.h"
82 #include "packet-snmp.h"
84 #include <epan/crypt/crypt-sha1.h>
85 #include <epan/crypt/crypt-md5.h>
86 #include <epan/expert.h>
87 #include <epan/report_err.h>
88 #include <epan/oids.h>
95 /* Take a pointer that may be null and return a pointer that's not null
96 by turning null pointers into pointers to the above null string,
97 and, if the argument pointer wasn't null, make sure we handle
98 non-printable characters in the string by escaping them. */
99 #define SAFE_STRING(s, l) (((s) != NULL) ? format_text((s), (l)) : "")
101 #define PNAME "Simple Network Management Protocol"
102 #define PSNAME "SNMP"
103 #define PFNAME "snmp"
105 #define UDP_PORT_SNMP 161
106 #define UDP_PORT_SNMP_TRAP 162
107 #define TCP_PORT_SNMP 161
108 #define TCP_PORT_SNMP_TRAP 162
109 #define TCP_PORT_SMUX 199
110 #define UDP_PORT_SNMP_PATROL 8161
112 /* Initialize the protocol and registered fields */
113 static int proto_snmp = -1;
114 static int proto_smux = -1;
116 static gboolean display_oid = TRUE;
117 static gboolean snmp_var_in_tree = TRUE;
119 static gboolean snmp_usm_auth_md5(snmp_usm_params_t* p, guint8**, guint*, gchar const**);
120 static gboolean snmp_usm_auth_sha1(snmp_usm_params_t* p, guint8**, guint*, gchar const**);
122 static tvbuff_t* snmp_usm_priv_des(snmp_usm_params_t*, tvbuff_t*, gchar const**);
123 static tvbuff_t* snmp_usm_priv_aes(snmp_usm_params_t*, tvbuff_t*, gchar const**);
126 static void snmp_usm_password_to_key_md5(const guint8 *password, guint passwordlen, const guint8 *engineID, guint engineLength, guint8 *key);
127 static void snmp_usm_password_to_key_sha1(const guint8 *password, guint passwordlen, const guint8 *engineID, guint engineLength, guint8 *key);
130 static snmp_usm_auth_model_t model_md5 = {snmp_usm_password_to_key_md5, snmp_usm_auth_md5, 16};
131 static snmp_usm_auth_model_t model_sha1 = {snmp_usm_password_to_key_sha1, snmp_usm_auth_sha1, 20};
133 static const value_string auth_types[] = {
138 static snmp_usm_auth_model_t* auth_models[] = {&model_md5,&model_sha1};
141 static const value_string priv_types[] = {
146 static snmp_usm_decoder_t priv_protos[] = {snmp_usm_priv_des, snmp_usm_priv_aes};
148 static snmp_ue_assoc_t* ueas = NULL;
149 static guint num_ueas = 0;
150 static snmp_ue_assoc_t* localized_ues = NULL;
151 static snmp_ue_assoc_t* unlocalized_ues = NULL;
154 /* Variabled used for handling enterprise spesific trap types */
155 typedef struct _snmp_st_assoc_t {
160 static guint num_specific_traps = 0;
161 static snmp_st_assoc_t *specific_traps = NULL;
162 static const char *enterprise_oid = NULL;
163 static guint generic_trap = 0;
166 static snmp_usm_params_t usm_p = {FALSE,FALSE,0,0,0,0,NULL,NULL,NULL,NULL,NULL,NULL,NULL,FALSE};
169 #define TH_CRYPT 0x02
170 #define TH_REPORT 0x04
172 /* desegmentation of SNMP-over-TCP */
173 static gboolean snmp_desegment = TRUE;
175 /* Global variables */
177 guint32 MsgSecurityModel;
178 tvbuff_t *oid_tvb=NULL;
179 tvbuff_t *value_tvb=NULL;
181 static dissector_handle_t snmp_handle;
182 static dissector_handle_t data_handle;
184 static next_tvb_list_t var_list;
186 static int hf_snmp_v3_flags_auth = -1;
187 static int hf_snmp_v3_flags_crypt = -1;
188 static int hf_snmp_v3_flags_report = -1;
190 static int hf_snmp_engineid_conform = -1;
191 static int hf_snmp_engineid_enterprise = -1;
192 static int hf_snmp_engineid_format = -1;
193 static int hf_snmp_engineid_ipv4 = -1;
194 static int hf_snmp_engineid_ipv6 = -1;
195 static int hf_snmp_engineid_cisco_type = -1;
196 static int hf_snmp_engineid_mac = -1;
197 static int hf_snmp_engineid_text = -1;
198 static int hf_snmp_engineid_time = -1;
199 static int hf_snmp_engineid_data = -1;
200 static int hf_snmp_decryptedPDU = -1;
201 static int hf_snmp_msgAuthentication = -1;
203 static int hf_snmp_noSuchObject = -1;
204 static int hf_snmp_noSuchInstance = -1;
205 static int hf_snmp_endOfMibView = -1;
206 static int hf_snmp_unSpecified = -1;
208 static int hf_snmp_integer32_value = -1;
209 static int hf_snmp_octetstring_value = -1;
210 static int hf_snmp_oid_value = -1;
211 static int hf_snmp_null_value = -1;
212 static int hf_snmp_ipv4_value = -1;
213 static int hf_snmp_ipv6_value = -1;
214 static int hf_snmp_anyaddress_value = -1;
215 static int hf_snmp_unsigned32_value = -1;
216 static int hf_snmp_unknown_value = -1;
217 static int hf_snmp_opaque_value = -1;
218 static int hf_snmp_nsap_value = -1;
219 static int hf_snmp_counter_value = -1;
220 static int hf_snmp_timeticks_value = -1;
221 static int hf_snmp_big_counter_value = -1;
222 static int hf_snmp_gauge32_value = -1;
224 static int hf_snmp_objectname = -1;
225 static int hf_snmp_scalar_instance_index = -1;
229 /*--- Included file: packet-snmp-hf.c ---*/
230 #line 1 "packet-snmp-hf.c"
231 static int hf_snmp_SMUX_PDUs_PDU = -1; /* SMUX_PDUs */
232 static int hf_snmp_version = -1; /* Version */
233 static int hf_snmp_community = -1; /* Community */
234 static int hf_snmp_data = -1; /* PDUs */
235 static int hf_snmp_parameters = -1; /* OCTET_STRING */
236 static int hf_snmp_datav2u = -1; /* T_datav2u */
237 static int hf_snmp_v2u_plaintext = -1; /* PDUs */
238 static int hf_snmp_encrypted = -1; /* OCTET_STRING */
239 static int hf_snmp_msgAuthoritativeEngineID = -1; /* T_msgAuthoritativeEngineID */
240 static int hf_snmp_msgAuthoritativeEngineBoots = -1; /* T_msgAuthoritativeEngineBoots */
241 static int hf_snmp_msgAuthoritativeEngineTime = -1; /* T_msgAuthoritativeEngineTime */
242 static int hf_snmp_msgUserName = -1; /* T_msgUserName */
243 static int hf_snmp_msgAuthenticationParameters = -1; /* T_msgAuthenticationParameters */
244 static int hf_snmp_msgPrivacyParameters = -1; /* T_msgPrivacyParameters */
245 static int hf_snmp_msgVersion = -1; /* Version */
246 static int hf_snmp_msgGlobalData = -1; /* HeaderData */
247 static int hf_snmp_msgSecurityParameters = -1; /* T_msgSecurityParameters */
248 static int hf_snmp_msgData = -1; /* ScopedPduData */
249 static int hf_snmp_msgID = -1; /* INTEGER_0_2147483647 */
250 static int hf_snmp_msgMaxSize = -1; /* INTEGER_484_2147483647 */
251 static int hf_snmp_msgFlags = -1; /* T_msgFlags */
252 static int hf_snmp_msgSecurityModel = -1; /* T_msgSecurityModel */
253 static int hf_snmp_plaintext = -1; /* ScopedPDU */
254 static int hf_snmp_encryptedPDU = -1; /* T_encryptedPDU */
255 static int hf_snmp_contextEngineID = -1; /* SnmpEngineID */
256 static int hf_snmp_contextName = -1; /* OCTET_STRING */
257 static int hf_snmp_get_request = -1; /* GetRequest_PDU */
258 static int hf_snmp_get_next_request = -1; /* GetNextRequest_PDU */
259 static int hf_snmp_get_response = -1; /* GetResponse_PDU */
260 static int hf_snmp_set_request = -1; /* SetRequest_PDU */
261 static int hf_snmp_trap = -1; /* Trap_PDU */
262 static int hf_snmp_getBulkRequest = -1; /* GetBulkRequest_PDU */
263 static int hf_snmp_informRequest = -1; /* InformRequest_PDU */
264 static int hf_snmp_sNMPv2_Trap = -1; /* SNMPv2_Trap_PDU */
265 static int hf_snmp_report = -1; /* Report_PDU */
266 static int hf_snmp_request_id = -1; /* INTEGER */
267 static int hf_snmp_error_status = -1; /* T_error_status */
268 static int hf_snmp_error_index = -1; /* INTEGER */
269 static int hf_snmp_variable_bindings = -1; /* VarBindList */
270 static int hf_snmp_bulkPDU_request_id = -1; /* Integer32 */
271 static int hf_snmp_non_repeaters = -1; /* INTEGER_0_2147483647 */
272 static int hf_snmp_max_repetitions = -1; /* INTEGER_0_2147483647 */
273 static int hf_snmp_enterprise = -1; /* EnterpriseOID */
274 static int hf_snmp_agent_addr = -1; /* NetworkAddress */
275 static int hf_snmp_generic_trap = -1; /* GenericTrap */
276 static int hf_snmp_specific_trap = -1; /* SpecificTrap */
277 static int hf_snmp_time_stamp = -1; /* TimeTicks */
278 static int hf_snmp_name = -1; /* ObjectName */
279 static int hf_snmp_valueType = -1; /* NULL */
280 static int hf_snmp_VarBindList_item = -1; /* VarBind */
281 static int hf_snmp_open = -1; /* OpenPDU */
282 static int hf_snmp_close = -1; /* ClosePDU */
283 static int hf_snmp_registerRequest = -1; /* RReqPDU */
284 static int hf_snmp_registerResponse = -1; /* RegisterResponse */
285 static int hf_snmp_commitOrRollback = -1; /* SOutPDU */
286 static int hf_snmp_rRspPDU = -1; /* RRspPDU */
287 static int hf_snmp_pDUs = -1; /* PDUs */
288 static int hf_snmp_smux_simple = -1; /* SimpleOpen */
289 static int hf_snmp_smux_version = -1; /* T_smux_version */
290 static int hf_snmp_identity = -1; /* OBJECT_IDENTIFIER */
291 static int hf_snmp_description = -1; /* DisplayString */
292 static int hf_snmp_password = -1; /* OCTET_STRING */
293 static int hf_snmp_subtree = -1; /* ObjectName */
294 static int hf_snmp_priority = -1; /* INTEGER_M1_2147483647 */
295 static int hf_snmp_operation = -1; /* T_operation */
297 /*--- End of included file: packet-snmp-hf.c ---*/
298 #line 221 "packet-snmp-template.c"
300 static int hf_smux_version = -1;
301 static int hf_smux_pdutype = -1;
303 /* Initialize the subtree pointers */
304 static gint ett_smux = -1;
305 static gint ett_snmp = -1;
306 static gint ett_engineid = -1;
307 static gint ett_msgFlags = -1;
308 static gint ett_encryptedPDU = -1;
309 static gint ett_decrypted = -1;
310 static gint ett_authParameters = -1;
311 static gint ett_internet = -1;
312 static gint ett_varbind = -1;
313 static gint ett_name = -1;
314 static gint ett_value = -1;
315 static gint ett_decoding_error = -1;
318 /*--- Included file: packet-snmp-ett.c ---*/
319 #line 1 "packet-snmp-ett.c"
320 static gint ett_snmp_Message = -1;
321 static gint ett_snmp_Messagev2u = -1;
322 static gint ett_snmp_T_datav2u = -1;
323 static gint ett_snmp_UsmSecurityParameters = -1;
324 static gint ett_snmp_SNMPv3Message = -1;
325 static gint ett_snmp_HeaderData = -1;
326 static gint ett_snmp_ScopedPduData = -1;
327 static gint ett_snmp_ScopedPDU = -1;
328 static gint ett_snmp_PDUs = -1;
329 static gint ett_snmp_PDU = -1;
330 static gint ett_snmp_BulkPDU = -1;
331 static gint ett_snmp_Trap_PDU_U = -1;
332 static gint ett_snmp_VarBind = -1;
333 static gint ett_snmp_VarBindList = -1;
334 static gint ett_snmp_SMUX_PDUs = -1;
335 static gint ett_snmp_RegisterResponse = -1;
336 static gint ett_snmp_OpenPDU = -1;
337 static gint ett_snmp_SimpleOpen_U = -1;
338 static gint ett_snmp_RReqPDU_U = -1;
340 /*--- End of included file: packet-snmp-ett.c ---*/
341 #line 240 "packet-snmp-template.c"
343 static const true_false_string auth_flags = {
348 /* Security Models */
350 #define SNMP_SEC_ANY 0
351 #define SNMP_SEC_V1 1
352 #define SNMP_SEC_V2C 2
353 #define SNMP_SEC_USM 3
355 static const value_string sec_models[] = {
356 { SNMP_SEC_ANY, "Any" },
357 { SNMP_SEC_V1, "V1" },
358 { SNMP_SEC_V2C, "V2C" },
359 { SNMP_SEC_USM, "USM" },
364 #define SMUX_MSG_OPEN 0
365 #define SMUX_MSG_CLOSE 1
366 #define SMUX_MSG_RREQ 2
367 #define SMUX_MSG_RRSP 3
368 #define SMUX_MSG_SOUT 4
370 static const value_string smux_types[] = {
371 { SMUX_MSG_OPEN, "Open" },
372 { SMUX_MSG_CLOSE, "Close" },
373 { SMUX_MSG_RREQ, "Registration Request" },
374 { SMUX_MSG_RRSP, "Registration Response" },
375 { SMUX_MSG_SOUT, "Commit Or Rollback" },
380 #define SNMP_IPA 0 /* IP Address */
381 #define SNMP_CNT 1 /* Counter (Counter32) */
382 #define SNMP_GGE 2 /* Gauge (Gauge32) */
383 #define SNMP_TIT 3 /* TimeTicks */
384 #define SNMP_OPQ 4 /* Opaque */
385 #define SNMP_NSP 5 /* NsapAddress */
386 #define SNMP_C64 6 /* Counter64 */
387 #define SNMP_U32 7 /* Uinteger32 */
394 dissector_table_t value_sub_dissectors_table;
398 snmp_lookup_specific_trap (guint specific_trap)
402 for (i = 0; i < num_specific_traps; i++) {
403 snmp_st_assoc_t *u = &(specific_traps[i]);
405 if ((u->trap == specific_trap) &&
406 (strcmp (u->enterprise, enterprise_oid) == 0))
416 * dissect_snmp_VarBind
417 * this routine dissects variable bindings, looking for the oid information in our oid reporsitory
418 * to format and add the value adequatelly.
420 * The choice to handwrite this code instead of using the asn compiler is to avoid having tons
421 * of uses of global variables distributed in very different parts of the code.
422 * Other than that there's a cosmetic thing: the tree from ASN generated code would be so
423 * convoluted due to the nesting of CHOICEs in the definition of VarBind/value.
425 * XXX: the length of this function (~400 lines) is an aberration!
426 * oid_key_t:key_type could become a series of callbacks instead of an enum
427 * the (! oid_info_is_ok) switch could be made into an array (would be slower)
430 NetworkAddress ::= CHOICE { internet IpAddress }
431 IpAddress ::= [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4))
432 TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295)
433 Integer32 ::= INTEGER (-2147483648..2147483647)
434 ObjectName ::= OBJECT IDENTIFIER
435 Counter32 ::= [APPLICATION 1] IMPLICIT INTEGER (0..4294967295)
436 Gauge32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295)
437 Unsigned32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295)
438 Integer-value ::= INTEGER (-2147483648..2147483647)
439 Integer32 ::= INTEGER (-2147483648..2147483647)
440 ObjectID-value ::= OBJECT IDENTIFIER
442 TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295)
443 Opaque ::= [APPLICATION 4] IMPLICIT OCTET STRING
444 Counter64 ::= [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615)
446 ObjectSyntax ::= CHOICE {
448 application-wide ApplicationSyntax
451 SimpleSyntax ::= CHOICE {
452 integer-value Integer-value,
453 string-value String-value,
454 objectID-value ObjectID-value,
458 ApplicationSyntax ::= CHOICE {
459 ipAddress-value IpAddress,
460 counter-value Counter32,
461 timeticks-value TimeTicks,
462 arbitrary-value Opaque,
463 big-counter-value Counter64,
464 unsigned-integer-value Unsigned32
467 ValueType ::= CHOICE {
470 noSuchObject[0] IMPLICIT NULL,
471 noSuchInstance[1] IMPLICIT NULL,
472 endOfMibView[2] IMPLICIT NULL
475 VarBind ::= SEQUENCE {
483 dissect_snmp_VarBind(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset,
484 asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_)
486 int seq_offset, name_offset, value_offset, value_start;
487 guint32 seq_len, name_len, value_len;
494 oid_info_t* oid_info = NULL;
495 guint oid_matched, oid_left;
496 proto_item *pi_name, *pi_varbind, *pi_value = NULL;
497 proto_tree *pt, *pt_varbind, *pt_name, *pt_value;
498 char label[ITEM_LABEL_LENGTH];
499 const char* repr = NULL;
500 const char* info_oid = NULL;
503 int min_len = 0, max_len = 0;
504 gboolean oid_info_is_ok;
505 const char* oid_string = NULL;
506 enum {BER_NO_ERROR, BER_WRONG_LENGTH, BER_WRONG_TAG} format_error = BER_NO_ERROR;
510 /* first have the VarBind's sequence header */
511 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
512 offset = get_ber_length(tvb, offset, &seq_len, &ind);
514 seq_len += offset - seq_offset;
516 if (!pc && ber_class==BER_CLASS_UNI && tag==BER_UNI_TAG_SEQUENCE) {
517 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"VarBind must be an universal class sequence");
518 pt = proto_item_add_subtree(pi,ett_decoding_error);
519 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "VarBind is not an universal class sequence");
520 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
524 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"Indicator must be clear in VarBind");
525 pt = proto_item_add_subtree(pi,ett_decoding_error);
526 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "VarBind has indicator set");
527 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
530 /* then we have the ObjectName's header */
532 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
533 name_offset = offset = get_ber_length(tvb, offset, &name_len, &ind);
535 if (! ( !pc && ber_class==BER_CLASS_UNI && tag==BER_UNI_TAG_OID) ) {
536 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"ObjectName must be an OID in primitive encoding");
537 pt = proto_item_add_subtree(pi,ett_decoding_error);
538 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "ObjectName not an OID");
539 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
543 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"Indicator must be clear in ObjectName");
544 pt = proto_item_add_subtree(pi,ett_decoding_error);
545 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "ObjectName has indicator set");
546 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
550 value_start = offset;
552 /* then we have the value's header */
553 offset = get_ber_identifier(tvb, offset, &ber_class, &pc, &tag);
554 value_offset = offset = get_ber_length(tvb, offset, &value_len, &ind);
557 proto_item* pi = proto_tree_add_text(tree, tvb, seq_offset, seq_len,"the value must be in primitive encoding");
558 pt = proto_item_add_subtree(pi,ett_decoding_error);
559 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "value not in primitive encoding");
560 return dissect_unknown_ber(actx->pinfo, tvb, seq_offset, pt);
563 /* Now, we know where everithing is */
567 /* we add the varbind tree root with a dummy label we'll fill later on */
568 pi_varbind = proto_tree_add_text(tree,tvb,seq_offset,seq_len,"VarBind");
569 pt_varbind = proto_item_add_subtree(pi_varbind,ett_varbind);
572 pi_name = proto_tree_add_item(pt_varbind,hf_snmp_objectname,tvb,name_offset,name_len,FALSE);
573 pt_name = proto_item_add_subtree(pi_name,ett_name);
575 /* fetch ObjectName and its relative oid_info */
576 oid_bytes = ep_tvb_memdup(tvb, name_offset, name_len);
577 oid_info = oid_get_from_encoded(oid_bytes, name_len, &subids, &oid_matched, &oid_left);
579 add_oid_debug_subtree(oid_info,pt_name);
584 repr = oid_encoded2string(oid_bytes, name_len);
585 pi = proto_tree_add_text(pt_name,tvb, 0, 0, "invalid oid: %s", repr);
586 pt = proto_item_add_subtree(pi, ett_decoding_error);
587 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "invalid oid: %s", repr);
588 return dissect_unknown_ber(actx->pinfo, tvb, name_offset, pt);
591 if (oid_matched+oid_left) {
592 oid_string = oid_subid2string(subids,oid_matched+oid_left);
595 if (ber_class == BER_CLASS_CON) {
596 /* if we have an error value just add it and get out the way ASAP */
600 if (value_len != 0) {
601 min_len = max_len = 0;
602 format_error = BER_WRONG_LENGTH;
607 hfid = hf_snmp_noSuchObject;
608 note = "noSuchObject";
611 hfid = hf_snmp_noSuchInstance;
612 note = "noSuchInstance";
615 hfid = hf_snmp_endOfMibView;
616 note = "endOfMibView";
619 pi = proto_tree_add_text(pt_varbind,tvb,0,0,"Wrong tag for Error Value: expected 0, 1, or 2 but got: %d",tag);
620 pt = proto_item_add_subtree(pi,ett_decoding_error);
621 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong tag for SNMP VarBind error value");
622 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
626 pi = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,FALSE);
627 expert_add_info_format(actx->pinfo, pi, PI_RESPONSE_CODE, PI_NOTE, "%s",note);
628 g_strlcpy (label, note, ITEM_LABEL_LENGTH);
632 /* 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 */
633 switch (oid_info->kind) {
634 case OID_KIND_SCALAR:
636 /* OK: we got the instance sub-id */
637 proto_tree_add_uint64(pt_name,hf_snmp_scalar_instance_index,tvb,name_offset,name_len,subids[oid_matched]);
638 oid_info_is_ok = TRUE;
640 } else if (oid_left == 0) {
641 if (ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
642 /* unSpecified does not require an instance sub-id add the new value and get off the way! */
643 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
646 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"A scalar should have one instance sub-id this one has none");
647 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "No instance sub-id in scalar value");
648 oid_info_is_ok = FALSE;
652 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);
653 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong number of instance sub-ids in scalar value");
654 oid_info_is_ok = FALSE;
658 case OID_KIND_COLUMN:
659 if ( oid_info->parent->kind == OID_KIND_ROW) {
660 oid_key_t* k = oid_info->parent->key;
661 guint key_start = oid_matched;
662 guint key_len = oid_left;
663 oid_info_is_ok = TRUE;
665 if ( key_len == 0 && ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
666 /* unSpecified does not require an instance sub-id add the new value and get off the way! */
667 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
672 for (;k;k = k->next) {
675 if (key_start >= oid_matched+oid_left) {
676 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index sub-oid shorter than expected");
677 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid shorter than expected");
678 oid_info_is_ok = FALSE;
682 switch(k->key_type) {
683 case OID_KEY_TYPE_WRONG: {
684 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");
685 expert_add_info_format(actx->pinfo, pi, PI_UNDECODED, PI_WARN, "Unimplemented instance index");
686 oid_info_is_ok = FALSE;
689 case OID_KEY_TYPE_INTEGER: {
690 if (IS_FT_INT(k->ft_type)) {
691 proto_tree_add_int(pt_name,k->hfid,tvb,name_offset,name_len,(guint)subids[key_start]);
692 } else { /* if it's not an unsigned int let proto_tree_add_uint throw a warning */
693 proto_tree_add_uint(pt_name,k->hfid,tvb,name_offset,name_len,(guint)subids[key_start]);
697 continue; /* k->next */
699 case OID_KEY_TYPE_IMPLIED_OID:
700 suboid_len = key_len;
704 case OID_KEY_TYPE_OID: {
706 guint suboid_buf_len;
709 suboid_len = subids[key_start++];
713 suboid = &(subids[key_start]);
715 if( suboid_len == 0 ) {
716 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"an index sub-oid OID cannot be 0 bytes long!");
717 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid OID with len=0");
718 oid_info_is_ok = FALSE;
722 if( key_len < suboid_len ) {
723 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index sub-oid should not be longer than remaining oid size");
724 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index sub-oid longer than remaining oid size");
725 oid_info_is_ok = FALSE;
729 suboid_buf_len = oid_subid2encoded(suboid_len, suboid, &suboid_buf);
731 DISSECTOR_ASSERT(suboid_buf_len);
733 proto_tree_add_oid(pt_name,k->hfid,tvb,name_offset, suboid_buf_len, suboid_buf);
735 key_start += suboid_len;
736 key_len -= suboid_len + 1;
737 continue; /* k->next */
746 switch (k->key_type) {
747 case OID_KEY_TYPE_IPADDR:
748 suboid = &(subids[key_start]);
751 case OID_KEY_TYPE_IMPLIED_STRING:
752 case OID_KEY_TYPE_IMPLIED_BYTES:
753 case OID_KEY_TYPE_ETHER:
754 suboid = &(subids[key_start]);
758 buf_len = k->num_subids;
759 suboid = &(subids[key_start]);
769 if( key_len < buf_len ) {
770 proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"index string should not be longer than remaining oid size");
771 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "index string longer than remaining oid size");
772 oid_info_is_ok = FALSE;
776 buf = ep_alloc(buf_len+1);
777 for (i = 0; i < buf_len; i++)
778 buf[i] = (guint8)suboid[i];
781 switch(k->key_type) {
782 case OID_KEY_TYPE_STRING:
783 case OID_KEY_TYPE_IMPLIED_STRING:
784 proto_tree_add_string(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
786 case OID_KEY_TYPE_BYTES:
787 case OID_KEY_TYPE_NSAP:
788 case OID_KEY_TYPE_IMPLIED_BYTES:
789 proto_tree_add_bytes(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
791 case OID_KEY_TYPE_ETHER:
792 proto_tree_add_ether(pt_name,k->hfid,tvb,name_offset,buf_len, buf);
794 case OID_KEY_TYPE_IPADDR: {
795 guint32* ipv4_p = (void*)buf;
796 proto_tree_add_ipv4(pt_name,k->hfid,tvb,name_offset,buf_len, *ipv4_p);
799 DISSECTOR_ASSERT_NOT_REACHED();
804 key_start += buf_len;
806 continue; /* k->next*/
812 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");
813 expert_add_info_format(actx->pinfo, pi, PI_UNDECODED, PI_WARN, "Unimplemented instance index");
814 oid_info_is_ok = FALSE;
818 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.");
819 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_ERROR, "COLUMS's parent is not a ROW");
820 oid_info_is_ok = FALSE;
824 /* proto_item* pi = proto_tree_add_text(pt_name,tvb,0,0,"This kind OID should have no value");
825 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "This kind OID should have no value"); */
826 oid_info_is_ok = FALSE;
832 if (oid_info_is_ok && oid_info->value_type) {
833 if (ber_class == BER_CLASS_UNI && tag == BER_UNI_TAG_NULL) {
834 pi_value = proto_tree_add_item(pt_varbind,hf_snmp_unSpecified,tvb,value_offset,value_len,FALSE);
836 if ((oid_info->value_type->ber_class != BER_CLASS_ANY) &&
837 (ber_class != oid_info->value_type->ber_class))
838 format_error = BER_WRONG_TAG;
840 if ((oid_info->value_type->ber_tag != BER_TAG_ANY) &&
841 (tag != oid_info->value_type->ber_tag))
842 format_error = BER_WRONG_TAG;
844 max_len = oid_info->value_type->max_len == -1 ? 0xffffff : oid_info->value_type->max_len;
845 min_len = oid_info->value_type->min_len;
847 if ((int)value_len < min_len || (int)value_len > max_len) {
848 format_error = BER_WRONG_LENGTH;
850 pi_value = proto_tree_add_item(pt_varbind,oid_info->value_hfid,tvb,value_offset,value_len,FALSE);
854 switch(ber_class|(tag<<4)) {
855 case BER_CLASS_UNI|(BER_UNI_TAG_INTEGER<<4):
858 unsigned offset = value_offset;
861 max_len = 5; min_len = 1;
862 if (value_len > (guint)max_len && value_len < (guint)min_len) {
863 format_error = BER_WRONG_LENGTH;
868 /* extend sign bit */
869 if(tvb_get_guint8(tvb, offset)&0x80) {
872 for(i=0;i<value_len;i++) {
873 val=(val<<8)|tvb_get_guint8(tvb, offset);
877 proto_tree_add_int64(pt_varbind, hf_snmp_integer32_value, tvb,value_offset,value_len, val);
881 case BER_CLASS_UNI|(BER_UNI_TAG_OCTETSTRING<<4):
882 hfid = hf_snmp_octetstring_value;
884 case BER_CLASS_UNI|(BER_UNI_TAG_OID<<4):
885 max_len = -1; min_len = 1;
886 if (value_len < (guint)min_len) format_error = BER_WRONG_LENGTH;
887 hfid = hf_snmp_oid_value;
889 case BER_CLASS_UNI|(BER_UNI_TAG_NULL<<4):
890 max_len = 0; min_len = 0;
891 if (value_len != 0) format_error = BER_WRONG_LENGTH;
892 hfid = hf_snmp_null_value;
894 case BER_CLASS_APP: /* | (SNMP_IPA<<4)*/
896 case 4: hfid = hf_snmp_ipv4_value; break;
897 case 16: hfid = hf_snmp_ipv6_value; break;
898 default: hfid = hf_snmp_anyaddress_value; break;
901 case BER_CLASS_APP|(SNMP_U32<<4):
902 hfid = hf_snmp_unsigned32_value;
904 case BER_CLASS_APP|(SNMP_GGE<<4):
905 hfid = hf_snmp_gauge32_value;
907 case BER_CLASS_APP|(SNMP_CNT<<4):
908 hfid = hf_snmp_counter_value;
910 case BER_CLASS_APP|(SNMP_TIT<<4):
911 hfid = hf_snmp_timeticks_value;
913 case BER_CLASS_APP|(SNMP_OPQ<<4):
914 hfid = hf_snmp_opaque_value;
916 case BER_CLASS_APP|(SNMP_NSP<<4):
917 hfid = hf_snmp_nsap_value;
919 case BER_CLASS_APP|(SNMP_C64<<4):
920 hfid = hf_snmp_big_counter_value;
923 hfid = hf_snmp_unknown_value;
927 pi_value = proto_tree_add_item(pt_varbind,hfid,tvb,value_offset,value_len,FALSE);
928 if (format_error != BER_NO_ERROR) {
929 expert_add_info_format(actx->pinfo, pi_value, PI_UNDECODED, PI_NOTE, "Unresolved value, Missing MIB");
933 oid_info_is_ok = FALSE;
936 pt_value = proto_item_add_subtree(pi_value,ett_value);
938 if (value_len > 0 && oid_string) {
939 tvbuff_t* sub_tvb = tvb_new_subset(tvb, value_offset, value_len, value_len);
941 next_tvb_add_string(&var_list, sub_tvb, (snmp_var_in_tree) ? pt_value : NULL, value_sub_dissectors_table, oid_string);
946 if (pi_value) proto_item_fill_label(PITEM_FINFO(pi_value), label);
948 if (oid_info && oid_info->name) {
950 repr = ep_strdup_printf("%s.%s (%s)", oid_info->name,
951 oid_subid2string(&(subids[oid_matched]),oid_left),
952 oid_subid2string(subids,oid_matched+oid_left));
953 info_oid = ep_strdup_printf("%s.%s", oid_info->name,
954 oid_subid2string(&(subids[oid_matched]),oid_left));
956 repr = ep_strdup_printf("%s (%s)", oid_info->name,
957 oid_subid2string(subids,oid_matched));
958 info_oid = oid_info->name;
960 } else if (oid_string) {
961 repr = ep_strdup(oid_string);
962 info_oid = oid_string;
964 repr = ep_strdup("[Bad OID]");
967 valstr = strstr(label,": ");
968 valstr = valstr ? valstr+2 : label;
970 proto_item_set_text(pi_varbind,"%s: %s",repr,valstr);
972 if (display_oid && info_oid) {
973 col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", info_oid);
976 switch (format_error) {
977 case BER_WRONG_LENGTH: {
978 proto_tree* pt = proto_item_add_subtree(pi_value,ett_decoding_error);
979 proto_item* pi = proto_tree_add_text(pt,tvb,0,0,"Wrong value length: %u expecting: %u <= len <= %u",
980 value_len, min_len, max_len == -1 ? 0xFFFFFF : max_len);
981 pt = proto_item_add_subtree(pi,ett_decoding_error);
982 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong length for SNMP VarBind/value");
983 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
985 case BER_WRONG_TAG: {
986 proto_tree* pt = proto_item_add_subtree(pi_value,ett_decoding_error);
987 proto_item* pi = proto_tree_add_text(pt,tvb,0,0,"Wrong class/tag for Value expected: %d,%d got: %d,%d",
988 oid_info->value_type->ber_class, oid_info->value_type->ber_tag,
990 pt = proto_item_add_subtree(pi,ett_decoding_error);
991 expert_add_info_format(actx->pinfo, pi, PI_MALFORMED, PI_WARN, "Wrong class/tag for SNMP VarBind/value");
992 return dissect_unknown_ber(actx->pinfo, tvb, value_start, pt);
998 return seq_offset + seq_len;
1002 #define F_SNMP_ENGINEID_CONFORM 0x80
1003 #define SNMP_ENGINEID_RFC1910 0x00
1004 #define SNMP_ENGINEID_RFC3411 0x01
1006 static const true_false_string tfs_snmp_engineid_conform = {
1008 "RFC1910 (Non-SNMPv3)"
1011 #define SNMP_ENGINEID_FORMAT_IPV4 0x01
1012 #define SNMP_ENGINEID_FORMAT_IPV6 0x02
1013 #define SNMP_ENGINEID_FORMAT_MACADDRESS 0x03
1014 #define SNMP_ENGINEID_FORMAT_TEXT 0x04
1015 #define SNMP_ENGINEID_FORMAT_OCTETS 0x05
1017 static const value_string snmp_engineid_format_vals[] = {
1018 { SNMP_ENGINEID_FORMAT_IPV4, "IPv4 address" },
1019 { SNMP_ENGINEID_FORMAT_IPV6, "IPv6 address" },
1020 { SNMP_ENGINEID_FORMAT_MACADDRESS, "MAC address" },
1021 { SNMP_ENGINEID_FORMAT_TEXT, "Text, administratively assigned" },
1022 { SNMP_ENGINEID_FORMAT_OCTETS, "Octets, administratively assigned" },
1026 #define SNMP_ENGINEID_CISCO_AGENT 0x00
1027 #define SNMP_ENGINEID_CISCO_MANAGER 0x01
1029 static const value_string snmp_engineid_cisco_type_vals[] = {
1030 { SNMP_ENGINEID_CISCO_AGENT, "Agent" },
1031 { SNMP_ENGINEID_CISCO_MANAGER, "Manager" },
1036 * SNMP Engine ID dissection according to RFC 3411 (SnmpEngineID TC)
1037 * or historic RFC 1910 (AgentID)
1040 dissect_snmp_engineid(proto_tree *tree, tvbuff_t *tvb, int offset, int len)
1042 proto_item *item = NULL;
1043 guint8 conformance, format;
1044 guint32 enterpriseid, seconds;
1046 int len_remain = len;
1048 /* first bit: engine id conformance */
1049 if (len_remain<4) return offset;
1050 conformance = ((tvb_get_guint8(tvb, offset)>>7) & 0x01);
1051 proto_tree_add_item(tree, hf_snmp_engineid_conform, tvb, offset, 1, FALSE);
1053 /* 4-byte enterprise number/name */
1054 if (len_remain<4) return offset;
1055 enterpriseid = tvb_get_ntohl(tvb, offset);
1057 enterpriseid -= 0x80000000; /* ignore first bit */
1058 proto_tree_add_uint(tree, hf_snmp_engineid_enterprise, tvb, offset, 4, enterpriseid);
1062 switch(conformance) {
1064 case SNMP_ENGINEID_RFC1910:
1065 /* 12-byte AgentID w/ 8-byte trailer */
1066 if (len_remain==8) {
1067 proto_tree_add_text(tree, tvb, offset, 8, "AgentID Trailer: 0x%s",
1068 tvb_bytes_to_str(tvb, offset, 8));
1072 proto_tree_add_text(tree, tvb, offset, len_remain, "<Data not conforming to RFC1910>");
1077 case SNMP_ENGINEID_RFC3411: /* variable length: 5..32 */
1079 /* 1-byte format specifier */
1080 if (len_remain<1) return offset;
1081 format = tvb_get_guint8(tvb, offset);
1082 item = proto_tree_add_uint_format(tree, hf_snmp_engineid_format, tvb, offset, 1, format, "Engine ID Format: %s (%d)",
1083 val_to_str(format, snmp_engineid_format_vals, "Reserved/Enterprise-specific"), format);
1088 case SNMP_ENGINEID_FORMAT_IPV4:
1089 /* 4-byte IPv4 address */
1090 if (len_remain==4) {
1091 proto_tree_add_item(tree, hf_snmp_engineid_ipv4, tvb, offset, 4, FALSE);
1096 case SNMP_ENGINEID_FORMAT_IPV6:
1097 /* 16-byte IPv6 address */
1098 if (len_remain==16) {
1099 proto_tree_add_item(tree, hf_snmp_engineid_ipv6, tvb, offset, 16, FALSE);
1104 case SNMP_ENGINEID_FORMAT_MACADDRESS:
1105 /* See: https://supportforums.cisco.com/message/3010617#3010617 for details. */
1106 if ((enterpriseid==9)&&(len_remain==7)) {
1107 proto_tree_add_item(tree, hf_snmp_engineid_cisco_type, tvb, offset, 1, FALSE);
1111 /* 6-byte MAC address */
1112 if (len_remain==6) {
1113 proto_tree_add_item(tree, hf_snmp_engineid_mac, tvb, offset, 6, FALSE);
1118 case SNMP_ENGINEID_FORMAT_TEXT:
1119 /* max. 27-byte string, administratively assigned */
1120 if (len_remain<=27) {
1121 proto_tree_add_item(tree, hf_snmp_engineid_text, tvb, offset, len_remain, FALSE);
1127 /* most common enterprise-specific format: (ucd|net)-snmp random */
1128 if ((enterpriseid==2021)||(enterpriseid==8072)) {
1129 proto_item_append_text(item, (enterpriseid==2021) ? ": UCD-SNMP Random" : ": Net-SNMP Random");
1130 /* demystify: 4B random, 4B epoch seconds */
1131 if (len_remain==8) {
1132 proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, 4, FALSE);
1133 seconds = tvb_get_letohl(tvb, offset+4);
1136 proto_tree_add_time_format_value(tree, hf_snmp_engineid_time, tvb, offset+4, 4,
1138 abs_time_secs_to_str(seconds, ABSOLUTE_TIME_LOCAL, TRUE));
1144 case SNMP_ENGINEID_FORMAT_OCTETS:
1146 /* max. 27 bytes, administratively assigned or unknown format */
1147 if (len_remain<=27) {
1148 proto_tree_add_item(tree, hf_snmp_engineid_data, tvb, offset, len_remain, FALSE);
1157 proto_tree_add_text(tree, tvb, offset, len_remain, "<Data not conforming to RFC3411>");
1164 static void set_ue_keys(snmp_ue_assoc_t* n ) {
1165 guint key_size = n->user.authModel->key_size;
1167 n->user.authKey.data = se_alloc(key_size);
1168 n->user.authKey.len = key_size;
1169 n->user.authModel->pass2key(n->user.authPassword.data,
1170 n->user.authPassword.len,
1173 n->user.authKey.data);
1175 n->user.privKey.data = se_alloc(key_size);
1176 n->user.privKey.len = key_size;
1177 n->user.authModel->pass2key(n->user.privPassword.data,
1178 n->user.privPassword.len,
1181 n->user.privKey.data);
1184 static snmp_ue_assoc_t*
1185 ue_se_dup(snmp_ue_assoc_t* o)
1187 snmp_ue_assoc_t* d = se_memdup(o,sizeof(snmp_ue_assoc_t));
1189 d->user.authModel = o->user.authModel;
1191 d->user.privProtocol = o->user.privProtocol;
1193 d->user.userName.data = se_memdup(o->user.userName.data,o->user.userName.len);
1194 d->user.userName.len = o->user.userName.len;
1196 d->user.authPassword.data = o->user.authPassword.data ? se_memdup(o->user.authPassword.data,o->user.authPassword.len) : NULL;
1197 d->user.authPassword.len = o->user.authPassword.len;
1199 d->user.privPassword.data = o->user.privPassword.data ? se_memdup(o->user.privPassword.data,o->user.privPassword.len) : NULL;
1200 d->user.privPassword.len = o->user.privPassword.len;
1202 d->engine.len = o->engine.len;
1204 if (d->engine.len) {
1205 d->engine.data = se_memdup(o->engine.data,o->engine.len);
1214 #define CACHE_INSERT(c,a) if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = NULL; }
1217 renew_ue_cache(void)
1219 localized_ues = NULL;
1220 unlocalized_ues = NULL;
1225 for(i = 0; i < num_ueas; i++) {
1226 snmp_ue_assoc_t* a = ue_se_dup(&(ueas[i]));
1228 if (a->engine.len) {
1229 CACHE_INSERT(localized_ues,a);
1232 CACHE_INSERT(unlocalized_ues,a);
1240 static snmp_ue_assoc_t*
1241 localize_ue( snmp_ue_assoc_t* o, const guint8* engine, guint engine_len )
1243 snmp_ue_assoc_t* n = se_memdup(o,sizeof(snmp_ue_assoc_t));
1245 n->engine.data = se_memdup(engine,engine_len);
1246 n->engine.len = engine_len;
1254 #define localized_match(a,u,ul,e,el) \
1255 ( a->user.userName.len == ul \
1256 && a->engine.len == el \
1257 && memcmp( a->user.userName.data, u, ul ) == 0 \
1258 && memcmp( a->engine.data, e, el ) == 0 )
1260 #define unlocalized_match(a,u,l) \
1261 ( a->user.userName.len == l && memcmp( a->user.userName.data, u, l) == 0 )
1263 static snmp_ue_assoc_t*
1264 get_user_assoc(tvbuff_t* engine_tvb, tvbuff_t* user_tvb)
1266 static snmp_ue_assoc_t* a;
1267 guint given_username_len;
1268 guint8* given_username;
1269 guint given_engine_len;
1270 guint8* given_engine;
1272 if ( ! (localized_ues || unlocalized_ues ) ) return NULL;
1274 if (! ( user_tvb && engine_tvb ) ) return NULL;
1276 given_username_len = tvb_length_remaining(user_tvb,0);
1277 given_username = ep_tvb_memdup(user_tvb,0,-1);
1278 given_engine_len = tvb_length_remaining(engine_tvb,0);
1279 given_engine = ep_tvb_memdup(engine_tvb,0,-1);
1281 for (a = localized_ues; a; a = a->next) {
1282 if ( localized_match(a, given_username, given_username_len, given_engine, given_engine_len) ) {
1287 for (a = unlocalized_ues; a; a = a->next) {
1288 if ( unlocalized_match(a, given_username, given_username_len) ) {
1289 snmp_ue_assoc_t* n = localize_ue( a, given_engine, given_engine_len );
1290 CACHE_INSERT(localized_ues,n);
1299 snmp_usm_auth_md5(snmp_usm_params_t* p, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error)
1313 *error = "No Authenticator";
1317 key = p->user_assoc->user.authKey.data;
1318 key_len = p->user_assoc->user.authKey.len;
1321 *error = "User has no authKey";
1326 auth_len = tvb_length_remaining(p->auth_tvb,0);
1328 if (auth_len != 12) {
1329 *error = "Authenticator length wrong";
1333 msg_len = tvb_length_remaining(p->msg_tvb,0);
1334 msg = ep_tvb_memdup(p->msg_tvb,0,msg_len);
1337 auth = ep_tvb_memdup(p->auth_tvb,0,auth_len);
1339 start = p->auth_offset - p->start_offset;
1340 end = start + auth_len;
1342 /* fill the authenticator with zeros */
1343 for ( i = start ; i < end ; i++ ) {
1347 calc_auth = ep_alloc(16);
1349 md5_hmac(msg, msg_len, key, key_len, calc_auth);
1351 if (calc_auth_p) *calc_auth_p = calc_auth;
1352 if (calc_auth_len_p) *calc_auth_len_p = 12;
1354 return ( memcmp(auth,calc_auth,12) != 0 ) ? FALSE : TRUE;
1359 snmp_usm_auth_sha1(snmp_usm_params_t* p _U_, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error _U_)
1373 *error = "No Authenticator";
1377 key = p->user_assoc->user.authKey.data;
1378 key_len = p->user_assoc->user.authKey.len;
1381 *error = "User has no authKey";
1386 auth_len = tvb_length_remaining(p->auth_tvb,0);
1389 if (auth_len != 12) {
1390 *error = "Authenticator length wrong";
1394 msg_len = tvb_length_remaining(p->msg_tvb,0);
1395 msg = ep_tvb_memdup(p->msg_tvb,0,msg_len);
1397 auth = ep_tvb_memdup(p->auth_tvb,0,auth_len);
1399 start = p->auth_offset - p->start_offset;
1400 end = start + auth_len;
1402 /* fill the authenticator with zeros */
1403 for ( i = start ; i < end ; i++ ) {
1407 calc_auth = ep_alloc(20);
1409 sha1_hmac(key, key_len, msg, msg_len, calc_auth);
1411 if (calc_auth_p) *calc_auth_p = calc_auth;
1412 if (calc_auth_len_p) *calc_auth_len_p = 12;
1414 return ( memcmp(auth,calc_auth,12) != 0 ) ? FALSE : TRUE;
1418 snmp_usm_priv_des(snmp_usm_params_t* p _U_, tvbuff_t* encryptedData _U_, gchar const** error _U_)
1420 #ifdef HAVE_LIBGCRYPT
1422 gcry_cipher_hd_t hd = NULL;
1425 guint8* des_key = p->user_assoc->user.privKey.data; /* first 8 bytes */
1426 guint8* pre_iv = &(p->user_assoc->user.privKey.data[8]); /* last 8 bytes */
1431 tvbuff_t* clear_tvb;
1436 salt_len = tvb_length_remaining(p->priv_tvb,0);
1438 if (salt_len != 8) {
1439 *error = "decryptionError: msgPrivacyParameters length != 8";
1443 salt = ep_tvb_memdup(p->priv_tvb,0,salt_len);
1446 The resulting "salt" is XOR-ed with the pre-IV to obtain the IV.
1448 for (i=0; i<8; i++) {
1449 iv[i] = pre_iv[i] ^ salt[i];
1452 cryptgrm_len = tvb_length_remaining(encryptedData,0);
1454 if (cryptgrm_len % 8) {
1455 *error = "decryptionError: the length of the encrypted data is not a mutiple of 8 octets";
1459 cryptgrm = ep_tvb_memdup(encryptedData,0,-1);
1461 cleartext = ep_alloc(cryptgrm_len);
1463 err = gcry_cipher_open(&hd, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_CBC, 0);
1464 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1466 err = gcry_cipher_setiv(hd, iv, 8);
1467 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1469 err = gcry_cipher_setkey(hd,des_key,8);
1470 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1472 err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len);
1473 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1475 gcry_cipher_close(hd);
1477 clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len);
1482 *error = (void*)gpg_strerror(err);
1483 if (hd) gcry_cipher_close(hd);
1486 *error = "libgcrypt not present, cannot decrypt";
1492 snmp_usm_priv_aes(snmp_usm_params_t* p _U_, tvbuff_t* encryptedData _U_, gchar const** error _U_)
1494 #ifdef HAVE_LIBGCRYPT
1496 gcry_cipher_hd_t hd = NULL;
1499 guint8* aes_key = p->user_assoc->user.privKey.data; /* first 16 bytes */
1504 tvbuff_t* clear_tvb;
1506 priv_len = tvb_length_remaining(p->priv_tvb,0);
1508 if (priv_len != 8) {
1509 *error = "decryptionError: msgPrivacyParameters length != 8";
1513 iv[0] = (p->boots & 0xff000000) >> 24;
1514 iv[1] = (p->boots & 0x00ff0000) >> 16;
1515 iv[2] = (p->boots & 0x0000ff00) >> 8;
1516 iv[3] = (p->boots & 0x000000ff);
1517 iv[4] = (p->time & 0xff000000) >> 24;
1518 iv[5] = (p->time & 0x00ff0000) >> 16;
1519 iv[6] = (p->time & 0x0000ff00) >> 8;
1520 iv[7] = (p->time & 0x000000ff);
1521 tvb_memcpy(p->priv_tvb,&(iv[8]),0,8);
1523 cryptgrm_len = tvb_length_remaining(encryptedData,0);
1524 cryptgrm = ep_tvb_memdup(encryptedData,0,-1);
1526 cleartext = ep_alloc(cryptgrm_len);
1528 err = gcry_cipher_open(&hd, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_CFB, 0);
1529 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1531 err = gcry_cipher_setiv(hd, iv, 16);
1532 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1534 err = gcry_cipher_setkey(hd,aes_key,16);
1535 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1537 err = gcry_cipher_decrypt(hd, cleartext, cryptgrm_len, cryptgrm, cryptgrm_len);
1538 if (err != GPG_ERR_NO_ERROR) goto on_gcry_error;
1540 gcry_cipher_close(hd);
1542 clear_tvb = tvb_new_child_real_data(encryptedData, cleartext, cryptgrm_len, cryptgrm_len);
1547 *error = (void*)gpg_strerror(err);
1548 if (hd) gcry_cipher_close(hd);
1551 *error = "libgcrypt not present, cannot decrypt";
1558 check_ScopedPdu(tvbuff_t* tvb)
1564 int hoffset, eoffset;
1567 offset = get_ber_identifier(tvb, 0, &class, &pc, &tag);
1568 offset = get_ber_length(tvb, offset, NULL, NULL);
1570 if ( ! (((class!=BER_CLASS_APP) && (class!=BER_CLASS_PRI) )
1571 && ( (!pc) || (class!=BER_CLASS_UNI) || (tag!=BER_UNI_TAG_ENUMERATED) )
1574 if((tvb_get_guint8(tvb, offset)==0)&&(tvb_get_guint8(tvb, offset+1)==0))
1579 offset = get_ber_identifier(tvb, offset, &class, &pc, &tag);
1580 offset = get_ber_length(tvb, offset, &len, NULL);
1581 eoffset = offset + len;
1583 if (eoffset <= hoffset) return FALSE;
1585 if ((class!=BER_CLASS_APP)&&(class!=BER_CLASS_PRI))
1586 if( (class!=BER_CLASS_UNI)
1587 ||((tag<BER_UNI_TAG_NumericString)&&(tag!=BER_UNI_TAG_OCTETSTRING)&&(tag!=BER_UNI_TAG_UTF8String)) )
1595 /*--- Included file: packet-snmp-fn.c ---*/
1596 #line 1 "packet-snmp-fn.c"
1601 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_) {
1605 offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_index, &enterprise_oid);
1608 if (display_oid && enterprise_oid) {
1609 name = oid_resolved_from_string(enterprise_oid);
1611 col_append_fstr (actx->pinfo->cinfo, COL_INFO, " %s", name);
1623 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_) {
1624 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
1633 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_) {
1634 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1635 hf_index, BER_CLASS_APP, 0, TRUE, dissect_snmp_OCTET_STRING_SIZE_4);
1643 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_) {
1644 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1653 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_) {
1654 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1655 hf_index, BER_CLASS_APP, 3, TRUE, dissect_snmp_INTEGER_0_4294967295);
1663 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_) {
1664 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1673 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_) {
1674 offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
1680 static const value_string snmp_Version_vals[] = {
1690 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_) {
1691 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1700 dissect_snmp_Community(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1701 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
1710 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_) {
1711 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1718 static const value_string snmp_T_error_status_vals[] = {
1721 { 2, "noSuchName" },
1727 { 8, "wrongLength" },
1728 { 9, "wrongEncoding" },
1729 { 10, "wrongValue" },
1730 { 11, "noCreation" },
1731 { 12, "inconsistentValue" },
1732 { 13, "resourceUnavailable" },
1733 { 14, "commitFailed" },
1734 { 15, "undoFailed" },
1735 { 16, "authorizationError" },
1736 { 17, "notWritable" },
1737 { 18, "inconsistentName" },
1743 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_) {
1744 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1753 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_) {
1754 offset = dissect_ber_null(implicit_tag, actx, tree, tvb, offset, hf_index);
1761 static const ber_sequence_t VarBindList_sequence_of[1] = {
1762 { &hf_snmp_VarBindList_item, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBind },
1766 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_) {
1767 offset = dissect_ber_sequence_of(implicit_tag, actx, tree, tvb, offset,
1768 VarBindList_sequence_of, hf_index, ett_snmp_VarBindList);
1774 static const ber_sequence_t PDU_sequence[] = {
1775 { &hf_snmp_request_id , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER },
1776 { &hf_snmp_error_status , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_error_status },
1777 { &hf_snmp_error_index , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER },
1778 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1779 { NULL, 0, 0, 0, NULL }
1783 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_) {
1784 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1785 PDU_sequence, hf_index, ett_snmp_PDU);
1793 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_) {
1794 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1795 hf_index, BER_CLASS_CON, 0, TRUE, dissect_snmp_PDU);
1803 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_) {
1804 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1805 hf_index, BER_CLASS_CON, 1, TRUE, dissect_snmp_PDU);
1813 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_) {
1814 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1815 hf_index, BER_CLASS_CON, 2, TRUE, dissect_snmp_PDU);
1823 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_) {
1824 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1825 hf_index, BER_CLASS_CON, 3, TRUE, dissect_snmp_PDU);
1831 static const value_string snmp_GenericTrap_vals[] = {
1836 { 4, "authenticationFailure" },
1837 { 5, "egpNeighborLoss" },
1838 { 6, "enterpriseSpecific" },
1844 dissect_snmp_GenericTrap(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1845 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1854 dissect_snmp_SpecificTrap(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
1856 guint specific_trap;
1858 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1862 if (generic_trap == 6) { /* enterprise specific */
1863 const gchar *specific_str = snmp_lookup_specific_trap (specific_trap);
1865 proto_item_append_text(actx->created_item, " (%s)", specific_str);
1874 static const ber_sequence_t Trap_PDU_U_sequence[] = {
1875 { &hf_snmp_enterprise , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_EnterpriseOID },
1876 { &hf_snmp_agent_addr , BER_CLASS_APP, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_NetworkAddress },
1877 { &hf_snmp_generic_trap , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_GenericTrap },
1878 { &hf_snmp_specific_trap , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_SpecificTrap },
1879 { &hf_snmp_time_stamp , BER_CLASS_APP, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_TimeTicks },
1880 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1881 { NULL, 0, 0, 0, NULL }
1885 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_) {
1888 enterprise_oid = NULL;
1890 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1891 Trap_PDU_U_sequence, hf_index, ett_snmp_Trap_PDU_U);
1902 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_) {
1903 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1904 hf_index, BER_CLASS_CON, 4, TRUE, dissect_snmp_Trap_PDU_U);
1912 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_) {
1913 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
1920 static const ber_sequence_t BulkPDU_sequence[] = {
1921 { &hf_snmp_bulkPDU_request_id, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Integer32 },
1922 { &hf_snmp_non_repeaters , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
1923 { &hf_snmp_max_repetitions, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
1924 { &hf_snmp_variable_bindings, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_VarBindList },
1925 { NULL, 0, 0, 0, NULL }
1929 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_) {
1930 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
1931 BulkPDU_sequence, hf_index, ett_snmp_BulkPDU);
1939 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_) {
1940 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1941 hf_index, BER_CLASS_CON, 5, TRUE, dissect_snmp_BulkPDU);
1949 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_) {
1950 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1951 hf_index, BER_CLASS_CON, 6, TRUE, dissect_snmp_PDU);
1959 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_) {
1960 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1961 hf_index, BER_CLASS_CON, 7, TRUE, dissect_snmp_PDU);
1969 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_) {
1970 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
1971 hf_index, BER_CLASS_CON, 8, TRUE, dissect_snmp_PDU);
1977 static const value_string snmp_PDUs_vals[] = {
1978 { 0, "get-request" },
1979 { 1, "get-next-request" },
1980 { 2, "get-response" },
1981 { 3, "set-request" },
1983 { 5, "getBulkRequest" },
1984 { 6, "informRequest" },
1985 { 7, "sNMPv2-Trap" },
1990 static const ber_choice_t PDUs_choice[] = {
1991 { 0, &hf_snmp_get_request , BER_CLASS_CON, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_GetRequest_PDU },
1992 { 1, &hf_snmp_get_next_request, BER_CLASS_CON, 1, BER_FLAGS_NOOWNTAG, dissect_snmp_GetNextRequest_PDU },
1993 { 2, &hf_snmp_get_response , BER_CLASS_CON, 2, BER_FLAGS_NOOWNTAG, dissect_snmp_GetResponse_PDU },
1994 { 3, &hf_snmp_set_request , BER_CLASS_CON, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_SetRequest_PDU },
1995 { 4, &hf_snmp_trap , BER_CLASS_CON, 4, BER_FLAGS_NOOWNTAG, dissect_snmp_Trap_PDU },
1996 { 5, &hf_snmp_getBulkRequest , BER_CLASS_CON, 5, BER_FLAGS_NOOWNTAG, dissect_snmp_GetBulkRequest_PDU },
1997 { 6, &hf_snmp_informRequest , BER_CLASS_CON, 6, BER_FLAGS_NOOWNTAG, dissect_snmp_InformRequest_PDU },
1998 { 7, &hf_snmp_sNMPv2_Trap , BER_CLASS_CON, 7, BER_FLAGS_NOOWNTAG, dissect_snmp_SNMPv2_Trap_PDU },
1999 { 8, &hf_snmp_report , BER_CLASS_CON, 8, BER_FLAGS_NOOWNTAG, dissect_snmp_Report_PDU },
2000 { 0, NULL, 0, 0, 0, NULL }
2004 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_) {
2008 col_clear(actx->pinfo->cinfo, COL_INFO);
2010 offset = dissect_ber_choice(actx, tree, tvb, offset,
2011 PDUs_choice, hf_index, ett_snmp_PDUs,
2014 if( (pdu_type!=-1) && snmp_PDUs_vals[pdu_type].strptr ){
2015 col_prepend_fstr(actx->pinfo->cinfo, COL_INFO, "%s", snmp_PDUs_vals[pdu_type].strptr);
2024 static const ber_sequence_t Message_sequence[] = {
2025 { &hf_snmp_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
2026 { &hf_snmp_community , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_Community },
2027 { &hf_snmp_data , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_PDUs },
2028 { NULL, 0, 0, 0, NULL }
2032 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_) {
2033 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2034 Message_sequence, hf_index, ett_snmp_Message);
2042 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_) {
2043 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2050 static const value_string snmp_T_datav2u_vals[] = {
2056 static const ber_choice_t T_datav2u_choice[] = {
2057 { 0, &hf_snmp_v2u_plaintext , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_PDUs },
2058 { 1, &hf_snmp_encrypted , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2059 { 0, NULL, 0, 0, 0, NULL }
2063 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_) {
2064 offset = dissect_ber_choice(actx, tree, tvb, offset,
2065 T_datav2u_choice, hf_index, ett_snmp_T_datav2u,
2072 static const ber_sequence_t Messagev2u_sequence[] = {
2073 { &hf_snmp_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
2074 { &hf_snmp_parameters , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2075 { &hf_snmp_datav2u , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_T_datav2u },
2076 { NULL, 0, 0, 0, NULL }
2080 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_) {
2081 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2082 Messagev2u_sequence, hf_index, ett_snmp_Messagev2u);
2090 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_) {
2092 tvbuff_t* param_tvb = NULL;
2094 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2097 proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid);
2098 dissect_snmp_engineid(engine_tree, param_tvb, 0, tvb_length_remaining(param_tvb,0));
2109 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_) {
2112 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2114 if (usm_p.engine_tvb) {
2115 proto_tree* engine_tree = proto_item_add_subtree(actx->created_item,ett_engineid);
2116 dissect_snmp_engineid(engine_tree, usm_p.engine_tvb, 0, tvb_length_remaining(usm_p.engine_tvb,0));
2127 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_) {
2128 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2137 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_) {
2138 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2147 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_) {
2148 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2157 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_) {
2158 #line 112 "snmp.cnf"
2159 offset = dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_index, &usm_p.auth_tvb);
2160 if (usm_p.auth_tvb) {
2161 usm_p.auth_item = actx->created_item;
2162 usm_p.auth_offset = tvb_offset_from_real_beginning(usm_p.auth_tvb);
2172 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_) {
2173 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2180 static const ber_sequence_t UsmSecurityParameters_sequence[] = {
2181 { &hf_snmp_msgAuthoritativeEngineID, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineID },
2182 { &hf_snmp_msgAuthoritativeEngineBoots, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineBoots },
2183 { &hf_snmp_msgAuthoritativeEngineTime, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthoritativeEngineTime },
2184 { &hf_snmp_msgUserName , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgUserName },
2185 { &hf_snmp_msgAuthenticationParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgAuthenticationParameters },
2186 { &hf_snmp_msgPrivacyParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgPrivacyParameters },
2187 { NULL, 0, 0, 0, NULL }
2191 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_) {
2192 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2193 UsmSecurityParameters_sequence, hf_index, ett_snmp_UsmSecurityParameters);
2201 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_) {
2202 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2211 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_) {
2212 #line 227 "snmp.cnf"
2213 tvbuff_t *parameter_tvb = NULL;
2215 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2219 guint8 v3_flags = tvb_get_guint8(parameter_tvb, 0);
2220 proto_tree* flags_tree = proto_item_add_subtree(actx->created_item,ett_msgFlags);
2222 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_report, parameter_tvb, 0, 1, FALSE);
2223 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_crypt, parameter_tvb, 0, 1, FALSE);
2224 proto_tree_add_item(flags_tree, hf_snmp_v3_flags_auth, parameter_tvb, 0, 1, FALSE);
2226 usm_p.encrypted = v3_flags & TH_CRYPT ? TRUE : FALSE;
2227 usm_p.authenticated = v3_flags & TH_AUTH ? TRUE : FALSE;
2239 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_) {
2240 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2247 static const ber_sequence_t HeaderData_sequence[] = {
2248 { &hf_snmp_msgID , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_0_2147483647 },
2249 { &hf_snmp_msgMaxSize , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_484_2147483647 },
2250 { &hf_snmp_msgFlags , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgFlags },
2251 { &hf_snmp_msgSecurityModel, BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgSecurityModel },
2252 { NULL, 0, 0, 0, NULL }
2256 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_) {
2257 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2258 HeaderData_sequence, hf_index, ett_snmp_HeaderData);
2266 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_) {
2267 #line 170 "snmp.cnf"
2269 switch(MsgSecurityModel){
2270 case SNMP_SEC_USM: /* 3 */
2271 offset = dissect_snmp_UsmSecurityParameters(FALSE, tvb, offset+2, actx, tree, -1);
2272 usm_p.user_assoc = get_user_assoc(usm_p.engine_tvb, usm_p.user_tvb);
2274 case SNMP_SEC_ANY: /* 0 */
2275 case SNMP_SEC_V1: /* 1 */
2276 case SNMP_SEC_V2C: /* 2 */
2278 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2290 static const ber_sequence_t ScopedPDU_sequence[] = {
2291 { &hf_snmp_contextEngineID, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_SnmpEngineID },
2292 { &hf_snmp_contextName , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2293 { &hf_snmp_data , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_PDUs },
2294 { NULL, 0, 0, 0, NULL }
2298 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_) {
2299 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2300 ScopedPDU_sequence, hf_index, ett_snmp_ScopedPDU);
2308 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_) {
2309 #line 121 "snmp.cnf"
2310 tvbuff_t* crypt_tvb;
2311 offset = dissect_ber_octet_string(FALSE, actx, tree, tvb, offset, hf_snmp_encryptedPDU, &crypt_tvb);
2313 if( usm_p.encrypted && crypt_tvb
2315 && usm_p.user_assoc->user.privProtocol ) {
2317 const gchar* error = NULL;
2318 proto_tree* encryptedpdu_tree = proto_item_add_subtree(actx->created_item,ett_encryptedPDU);
2319 tvbuff_t* cleartext_tvb = usm_p.user_assoc->user.privProtocol(&usm_p, crypt_tvb, &error );
2321 if (! cleartext_tvb) {
2322 proto_item* cause = proto_tree_add_text(encryptedpdu_tree, crypt_tvb, 0, -1,
2323 "Failed to decrypt encryptedPDU: %s", error);
2325 expert_add_info_format(actx->pinfo, cause, PI_MALFORMED, PI_WARN,
2326 "Failed to decrypt encryptedPDU: %s", error);
2328 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Failed to decrypt");
2332 proto_item* decrypted_item;
2333 proto_tree* decrypted_tree;
2335 if (! check_ScopedPdu(cleartext_tvb)) {
2336 proto_item* cause = proto_tree_add_text(encryptedpdu_tree, cleartext_tvb, 0, -1,
2337 "Decrypted data not formatted as expected, wrong key?");
2339 expert_add_info_format(actx->pinfo, cause, PI_MALFORMED, PI_WARN,
2340 "Decrypted data not formatted as expected");
2342 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: Decrypted data not formatted as expected");
2348 add_new_data_source(actx->pinfo, cleartext_tvb, "Decrypted ScopedPDU");
2350 decrypted_item = proto_tree_add_item(encryptedpdu_tree, hf_snmp_decryptedPDU,cleartext_tvb,0,-1,FALSE);
2351 decrypted_tree = proto_item_add_subtree(decrypted_item,ett_decrypted);
2352 dissect_snmp_ScopedPDU(FALSE, cleartext_tvb, 0, actx, decrypted_tree, -1);
2355 col_set_str(actx->pinfo->cinfo, COL_INFO, "encryptedPDU: privKey Unknown");
2364 static const value_string snmp_ScopedPduData_vals[] = {
2366 { 1, "encryptedPDU" },
2370 static const ber_choice_t ScopedPduData_choice[] = {
2371 { 0, &hf_snmp_plaintext , BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_ScopedPDU },
2372 { 1, &hf_snmp_encryptedPDU , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_encryptedPDU },
2373 { 0, NULL, 0, 0, 0, NULL }
2377 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_) {
2378 offset = dissect_ber_choice(actx, tree, tvb, offset,
2379 ScopedPduData_choice, hf_index, ett_snmp_ScopedPduData,
2386 static const ber_sequence_t SNMPv3Message_sequence[] = {
2387 { &hf_snmp_msgVersion , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_Version },
2388 { &hf_snmp_msgGlobalData , BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_snmp_HeaderData },
2389 { &hf_snmp_msgSecurityParameters, BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_T_msgSecurityParameters },
2390 { &hf_snmp_msgData , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_snmp_ScopedPduData },
2391 { NULL, 0, 0, 0, NULL }
2395 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_) {
2396 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2397 SNMPv3Message_sequence, hf_index, ett_snmp_SNMPv3Message);
2399 #line 185 "snmp.cnf"
2401 if( usm_p.authenticated
2403 && usm_p.user_assoc->user.authModel ) {
2404 const gchar* error = NULL;
2405 proto_item* authen_item;
2406 proto_tree* authen_tree = proto_item_add_subtree(usm_p.auth_item,ett_authParameters);
2408 guint calc_auth_len;
2410 usm_p.authOK = usm_p.user_assoc->user.authModel->authenticate( &usm_p, &calc_auth, &calc_auth_len, &error );
2413 authen_item = proto_tree_add_text(authen_tree,tvb,0,0,"Error while verifying Message authenticity: %s", error);
2414 PROTO_ITEM_SET_GENERATED(authen_item);
2415 expert_add_info_format( actx->pinfo, authen_item, PI_MALFORMED, PI_ERROR, "Error while verifying Message authenticity: %s", error );
2420 authen_item = proto_tree_add_boolean(authen_tree, hf_snmp_msgAuthentication, tvb, 0, 0, usm_p.authOK);
2421 PROTO_ITEM_SET_GENERATED(authen_item);
2424 msg = "SNMP Authentication OK";
2427 gchar* calc_auth_str = bytestring_to_str(calc_auth,calc_auth_len,' ');
2428 proto_item_append_text(authen_item, " calculated = %s", calc_auth_str);
2429 msg = "SNMP Authentication Error";
2433 expert_add_info_format( actx->pinfo, authen_item, PI_CHECKSUM, severity, "%s", msg );
2442 static const value_string snmp_T_smux_version_vals[] = {
2449 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_) {
2450 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2459 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_) {
2460 offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
2468 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_) {
2469 offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
2476 static const ber_sequence_t SimpleOpen_U_sequence[] = {
2477 { &hf_snmp_smux_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_smux_version },
2478 { &hf_snmp_identity , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_OBJECT_IDENTIFIER },
2479 { &hf_snmp_description , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_DisplayString },
2480 { &hf_snmp_password , BER_CLASS_UNI, BER_UNI_TAG_OCTETSTRING, BER_FLAGS_NOOWNTAG, dissect_snmp_OCTET_STRING },
2481 { NULL, 0, 0, 0, NULL }
2485 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_) {
2486 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2487 SimpleOpen_U_sequence, hf_index, ett_snmp_SimpleOpen_U);
2495 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_) {
2496 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2497 hf_index, BER_CLASS_APP, 0, TRUE, dissect_snmp_SimpleOpen_U);
2503 static const value_string snmp_OpenPDU_vals[] = {
2504 { 0, "smux-simple" },
2508 static const ber_choice_t OpenPDU_choice[] = {
2509 { 0, &hf_snmp_smux_simple , BER_CLASS_APP, 0, BER_FLAGS_NOOWNTAG, dissect_snmp_SimpleOpen },
2510 { 0, NULL, 0, 0, 0, NULL }
2514 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_) {
2515 offset = dissect_ber_choice(actx, tree, tvb, offset,
2516 OpenPDU_choice, hf_index, ett_snmp_OpenPDU,
2523 static const value_string snmp_ClosePDU_U_vals[] = {
2525 { 1, "unsupportedVersion" },
2526 { 2, "packetFormat" },
2527 { 3, "protocolError" },
2528 { 4, "internalError" },
2529 { 5, "authenticationFailure" },
2535 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_) {
2536 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2545 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_) {
2546 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2547 hf_index, BER_CLASS_APP, 1, TRUE, dissect_snmp_ClosePDU_U);
2555 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_) {
2556 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2563 static const value_string snmp_T_operation_vals[] = {
2572 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_) {
2573 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2580 static const ber_sequence_t RReqPDU_U_sequence[] = {
2581 { &hf_snmp_subtree , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_snmp_ObjectName },
2582 { &hf_snmp_priority , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_INTEGER_M1_2147483647 },
2583 { &hf_snmp_operation , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_snmp_T_operation },
2584 { NULL, 0, 0, 0, NULL }
2588 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_) {
2589 offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
2590 RReqPDU_U_sequence, hf_index, ett_snmp_RReqPDU_U);
2598 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_) {
2599 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2600 hf_index, BER_CLASS_APP, 2, TRUE, dissect_snmp_RReqPDU_U);
2606 static const value_string snmp_RRspPDU_U_vals[] = {
2613 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_) {
2614 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2623 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_) {
2624 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2625 hf_index, BER_CLASS_APP, 3, TRUE, dissect_snmp_RRspPDU_U);
2631 static const value_string snmp_RegisterResponse_vals[] = {
2637 static const ber_choice_t RegisterResponse_choice[] = {
2638 { 0, &hf_snmp_rRspPDU , BER_CLASS_APP, 3, BER_FLAGS_NOOWNTAG, dissect_snmp_RRspPDU },
2639 { 1, &hf_snmp_pDUs , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_PDUs },
2640 { 0, NULL, 0, 0, 0, NULL }
2644 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_) {
2645 offset = dissect_ber_choice(actx, tree, tvb, offset,
2646 RegisterResponse_choice, hf_index, ett_snmp_RegisterResponse,
2653 static const value_string snmp_SOutPDU_U_vals[] = {
2661 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_) {
2662 offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
2671 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_) {
2672 offset = dissect_ber_tagged_type(implicit_tag, actx, tree, tvb, offset,
2673 hf_index, BER_CLASS_APP, 4, TRUE, dissect_snmp_SOutPDU_U);
2679 static const value_string snmp_SMUX_PDUs_vals[] = {
2682 { 2, "registerRequest" },
2683 { 3, "registerResponse" },
2684 { 4, "commitOrRollback" },
2688 static const ber_choice_t SMUX_PDUs_choice[] = {
2689 { 0, &hf_snmp_open , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_OpenPDU },
2690 { 1, &hf_snmp_close , BER_CLASS_APP, 1, BER_FLAGS_NOOWNTAG, dissect_snmp_ClosePDU },
2691 { 2, &hf_snmp_registerRequest, BER_CLASS_APP, 2, BER_FLAGS_NOOWNTAG, dissect_snmp_RReqPDU },
2692 { 3, &hf_snmp_registerResponse, BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG, dissect_snmp_RegisterResponse },
2693 { 4, &hf_snmp_commitOrRollback, BER_CLASS_APP, 4, BER_FLAGS_NOOWNTAG, dissect_snmp_SOutPDU },
2694 { 0, NULL, 0, 0, 0, NULL }
2698 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_) {
2699 offset = dissect_ber_choice(actx, tree, tvb, offset,
2700 SMUX_PDUs_choice, hf_index, ett_snmp_SMUX_PDUs,
2708 static void dissect_SMUX_PDUs_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) {
2709 asn1_ctx_t asn1_ctx;
2710 asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
2711 dissect_snmp_SMUX_PDUs(FALSE, tvb, 0, &asn1_ctx, tree, hf_snmp_SMUX_PDUs_PDU);
2715 /*--- End of included file: packet-snmp-fn.c ---*/
2716 #line 1493 "packet-snmp-template.c"
2720 dissect_snmp_pdu(tvbuff_t *tvb, int offset, packet_info *pinfo,
2721 proto_tree *tree, int proto, gint ett, gboolean is_tcp)
2724 guint length_remaining;
2726 gboolean pc, ind = 0;
2729 guint message_length;
2730 int start_offset = offset;
2731 guint32 version = 0;
2734 proto_tree *snmp_tree = NULL;
2735 proto_item *item = NULL;
2736 asn1_ctx_t asn1_ctx;
2737 asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
2740 usm_p.msg_tvb = tvb;
2741 usm_p.start_offset = tvb_offset_from_real_beginning(tvb);
2742 usm_p.engine_tvb = NULL;
2743 usm_p.user_tvb = NULL;
2744 usm_p.auth_item = NULL;
2745 usm_p.auth_tvb = NULL;
2746 usm_p.auth_offset = 0;
2747 usm_p.priv_tvb = NULL;
2748 usm_p.user_assoc = NULL;
2749 usm_p.authenticated = FALSE;
2750 usm_p.encrypted = FALSE;
2753 usm_p.authOK = FALSE;
2756 * This will throw an exception if we don't have any data left.
2757 * That's what we want. (See "tcp_dissect_pdus()", which is
2758 * similar, but doesn't have to deal with ASN.1.
2759 * XXX - can we make "tcp_dissect_pdus()" provide enough
2760 * information to the "get_pdu_len" routine so that we could
2761 * have that routine deal with ASN.1, and just use
2762 * "tcp_dissect_pdus()"?)
2764 length_remaining = tvb_ensure_length_remaining(tvb, offset);
2766 /* NOTE: we have to parse the message piece by piece, since the
2767 * capture length may be less than the message length: a 'global'
2768 * parsing is likely to fail.
2772 * If this is SNMP-over-TCP, we might have to do reassembly
2773 * in order to read the "Sequence Of" header.
2775 if (is_tcp && snmp_desegment && pinfo->can_desegment) {
2777 * This is TCP, and we should, and can, do reassembly.
2779 * Is the "Sequence Of" header split across segment
2780 * boundaries? We require at least 6 bytes for the
2781 * header, which allows for a 4-byte length (ASN.1
2784 if (length_remaining < 6) {
2785 pinfo->desegment_offset = offset;
2786 pinfo->desegment_len = 6 - length_remaining;
2789 * Return 0, which means "I didn't dissect anything
2790 * because I don't have enough data - we need
2798 * OK, try to read the "Sequence Of" header; this gets the total
2799 * length of the SNMP message.
2801 /* Set tree to 0 to not display internal BER fields if option used.*/
2802 offset = dissect_ber_identifier(pinfo, 0, tvb, offset, &class, &pc, &tag);
2803 /*Get the total octet length of the SNMP data*/
2804 offset = dissect_ber_length(pinfo, 0, tvb, offset, &len, &ind);
2805 message_length = len + 2;
2807 /*Get the SNMP version data*/
2808 offset = dissect_ber_integer(FALSE, &asn1_ctx, 0, tvb, offset, -1, &version);
2812 * If this is SNMP-over-TCP, we might have to do reassembly
2813 * to get all of this message.
2815 if (is_tcp && snmp_desegment && pinfo->can_desegment) {
2817 * Yes - is the message split across segment boundaries?
2819 if (length_remaining < message_length) {
2821 * Yes. Tell the TCP dissector where the data
2822 * for this message starts in the data it handed
2823 * us, and how many more bytes we need, and
2826 pinfo->desegment_offset = start_offset;
2827 pinfo->desegment_len =
2828 message_length - length_remaining;
2831 * Return 0, which means "I didn't dissect anything
2832 * because I don't have enough data - we need
2839 next_tvb_init(&var_list);
2841 col_set_str(pinfo->cinfo, COL_PROTOCOL,
2842 proto_get_protocol_short_name(find_protocol_by_id(proto)));
2845 item = proto_tree_add_item(tree, proto, tvb, start_offset,
2846 message_length, FALSE);
2847 snmp_tree = proto_item_add_subtree(item, ett);
2853 offset = dissect_snmp_Message(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2856 offset = dissect_snmp_Messagev2u(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2860 offset = dissect_snmp_SNMPv3Message(FALSE , tvb, start_offset, &asn1_ctx, snmp_tree, -1);
2864 * Return the length remaining in the tvbuff, so
2865 * if this is SNMP-over-TCP, our caller thinks there's
2866 * nothing left to dissect.
2868 proto_tree_add_text(snmp_tree, tvb, offset, -1,"Unknown version");
2869 return length_remaining;
2873 /* There may be appended data after the SNMP data, so treat as raw
2874 * data which needs to be dissected in case of UDP as UDP is PDU oriented.
2876 if((!is_tcp) && (length_remaining > (guint)offset)) {
2877 next_tvb = tvb_new_subset_remaining(tvb, offset);
2878 call_dissector(data_handle, next_tvb, pinfo, tree);
2880 next_tvb_call(&var_list, pinfo, tree, NULL, data_handle);
2887 dissect_snmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2889 conversation_t *conversation;
2898 * See if this looks like SNMP or not. if not, return 0 so
2899 * wireshark can try som other dissector instead.
2901 /* All SNMP packets are BER encoded and consist of a SEQUENCE
2902 * that spans the entire PDU. The first item is an INTEGER that
2903 * has the values 0-2 (version 1-3).
2904 * if not it is not snmp.
2906 /* SNMP starts with a SEQUENCE */
2907 offset = get_ber_identifier(tvb, 0, &tmp_class, &tmp_pc, &tmp_tag);
2908 if((tmp_class!=BER_CLASS_UNI)||(tmp_tag!=BER_UNI_TAG_SEQUENCE)) {
2911 /* then comes a length which spans the rest of the tvb */
2912 offset = get_ber_length(tvb, offset, &tmp_length, &tmp_ind);
2913 /* if(tmp_length!=(guint32)tvb_reported_length_remaining(tvb, offset)) {
2914 * Losen the heuristic a bit to handle the case where data has intentionally
2915 * been added after the snmp PDU ( UDP case)
2917 if ( pinfo->ptype == PT_UDP ) {
2918 if(tmp_length>(guint32)tvb_reported_length_remaining(tvb, offset)) {
2922 if(tmp_length!=(guint32)tvb_reported_length_remaining(tvb, offset)) {
2926 /* then comes an INTEGER (version)*/
2927 offset = get_ber_identifier(tvb, offset, &tmp_class, &tmp_pc, &tmp_tag);
2928 if((tmp_class!=BER_CLASS_UNI)||(tmp_tag!=BER_UNI_TAG_INTEGER)) {
2931 /* do we need to test that version is 0 - 2 (version1-3) ? */
2935 * The first SNMP packet goes to the SNMP port; the second one
2936 * may come from some *other* port, but goes back to the same
2937 * IP address and port as the ones from which the first packet
2938 * came; all subsequent packets presumably go between those two
2939 * IP addresses and ports.
2941 * If this packet went to the SNMP port, we check to see if
2942 * there's already a conversation with one address/port pair
2943 * matching the source IP address and port of this packet,
2944 * the other address matching the destination IP address of this
2945 * packet, and any destination port.
2947 * If not, we create one, with its address 1/port 1 pair being
2948 * the source address/port of this packet, its address 2 being
2949 * the destination address of this packet, and its port 2 being
2950 * wildcarded, and give it the SNMP dissector as a dissector.
2952 if (pinfo->destport == UDP_PORT_SNMP) {
2953 conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst, PT_UDP,
2954 pinfo->srcport, 0, NO_PORT_B);
2955 if( (conversation == NULL) || (conversation->dissector_handle!=snmp_handle) ) {
2956 conversation = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst, PT_UDP,
2957 pinfo->srcport, 0, NO_PORT2);
2958 conversation_set_dissector(conversation, snmp_handle);
2962 return dissect_snmp_pdu(tvb, 0, pinfo, tree, proto_snmp, ett_snmp, FALSE);
2966 dissect_snmp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2971 while (tvb_reported_length_remaining(tvb, offset) > 0) {
2972 message_len = dissect_snmp_pdu(tvb, 0, pinfo, tree,
2973 proto_snmp, ett_snmp, TRUE);
2974 if (message_len == 0) {
2976 * We don't have all the data for that message,
2977 * so we need to do desegmentation;
2978 * "dissect_snmp_pdu()" has set that up.
2982 offset += message_len;
2987 dissect_smux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2989 proto_tree *smux_tree = NULL;
2990 proto_item *item = NULL;
2992 next_tvb_init(&var_list);
2994 col_set_str(pinfo->cinfo, COL_PROTOCOL, "SMUX");
2997 item = proto_tree_add_item(tree, proto_smux, tvb, 0, -1, FALSE);
2998 smux_tree = proto_item_add_subtree(item, ett_smux);
3001 dissect_SMUX_PDUs_PDU(tvb, pinfo, tree);
3006 MD5 Password to Key Algorithm
3010 snmp_usm_password_to_key_md5(const guint8 *password, guint passwordlen,
3011 const guint8 *engineID, guint engineLength,
3015 guint8 *cp, password_buf[64];
3016 guint32 password_index = 0;
3017 guint32 count = 0, i;
3019 md5_init(&MD); /* initialize MD5 */
3021 /**********************************************/
3022 /* Use while loop until we've done 1 Megabyte */
3023 /**********************************************/
3024 while (count < 1048576) {
3026 for (i = 0; i < 64; i++) {
3027 /*************************************************/
3028 /* Take the next octet of the password, wrapping */
3029 /* to the beginning of the password as necessary.*/
3030 /*************************************************/
3031 *cp++ = password[password_index++ % passwordlen];
3033 md5_append(&MD, password_buf, 64);
3036 md5_finish(&MD, key1); /* tell MD5 we're done */
3038 /*****************************************************/
3039 /* Now localize the key with the engineID and pass */
3040 /* through MD5 to produce final key */
3041 /* We ignore invalid engineLengths here. More strict */
3042 /* checking is done in snmp_users_update_cb. */
3043 /*****************************************************/
3046 md5_append(&MD, key1, 16);
3047 md5_append(&MD, engineID, engineLength);
3048 md5_append(&MD, key1, 16);
3049 md5_finish(&MD, key);
3058 SHA1 Password to Key Algorithm COPIED from RFC 3414 A.2.2
3062 snmp_usm_password_to_key_sha1(const guint8 *password, guint passwordlen,
3063 const guint8 *engineID, guint engineLength,
3067 guint8 *cp, password_buf[64];
3068 guint32 password_index = 0;
3069 guint32 count = 0, i;
3071 sha1_starts(&SH); /* initialize SHA */
3073 /**********************************************/
3074 /* Use while loop until we've done 1 Megabyte */
3075 /**********************************************/
3076 while (count < 1048576) {
3078 for (i = 0; i < 64; i++) {
3079 /*************************************************/
3080 /* Take the next octet of the password, wrapping */
3081 /* to the beginning of the password as necessary.*/
3082 /*************************************************/
3083 *cp++ = password[password_index++ % passwordlen];
3085 sha1_update (&SH, password_buf, 64);
3088 sha1_finish(&SH, key);
3090 /*****************************************************/
3091 /* Now localize the key with the engineID and pass */
3092 /* through SHA to produce final key */
3093 /* We ignore invalid engineLengths here. More strict */
3094 /* checking is done in snmp_users_update_cb. */
3095 /*****************************************************/
3098 sha1_update(&SH, key, 20);
3099 sha1_update(&SH, engineID, engineLength);
3100 sha1_update(&SH, key, 20);
3101 sha1_finish(&SH, key);
3112 snmp_users_copy_cb(void* dest, const void* orig, size_t len _U_)
3114 const snmp_ue_assoc_t* o = orig;
3115 snmp_ue_assoc_t* d = dest;
3117 d->auth_model = o->auth_model;
3118 d->user.authModel = auth_models[o->auth_model];
3120 d->priv_proto = o->priv_proto;
3121 d->user.privProtocol = priv_protos[o->priv_proto];
3123 d->user.userName.data = g_memdup(o->user.userName.data,o->user.userName.len);
3124 d->user.userName.len = o->user.userName.len;
3126 d->user.authPassword.data = o->user.authPassword.data ? g_memdup(o->user.authPassword.data,o->user.authPassword.len) : NULL;
3127 d->user.authPassword.len = o->user.authPassword.len;
3129 d->user.privPassword.data = o->user.privPassword.data ? g_memdup(o->user.privPassword.data,o->user.privPassword.len) : NULL;
3130 d->user.privPassword.len = o->user.privPassword.len;
3132 d->engine.len = o->engine.len;
3133 if (o->engine.data) {
3134 d->engine.data = g_memdup(o->engine.data,o->engine.len);
3137 d->user.authKey.data = o->user.authKey.data ? g_memdup(o->user.authKey.data,o->user.authKey.len) : NULL;
3138 d->user.authKey.len = o->user.authKey.len;
3140 d->user.privKey.data = o->user.privKey.data ? g_memdup(o->user.privKey.data,o->user.privKey.len) : NULL;
3141 d->user.privKey.len = o->user.privKey.len;
3147 snmp_users_free_cb(void* p)
3149 snmp_ue_assoc_t* ue = p;
3150 g_free(ue->user.userName.data);
3151 g_free(ue->user.authPassword.data);
3152 g_free(ue->user.privPassword.data);
3153 g_free(ue->user.authKey.data);
3154 g_free(ue->user.privKey.data);
3155 g_free(ue->engine.data);
3159 snmp_users_update_cb(void* p _U_, const char** err)
3161 snmp_ue_assoc_t* ue = p;
3162 GString* es = g_string_new("");
3168 /* Nothing to update */
3171 if (! ue->user.userName.len)
3172 g_string_append_printf(es,"no userName\n");
3174 for (i=0; i<num_ueas-1; i++) {
3175 snmp_ue_assoc_t* u = &(ueas[i]);
3177 /* RFC 3411 section 5 */
3178 if (u->engine.len < 5 || u->engine.len > 32) {
3179 g_string_append_printf(es, "Invalid engineId length (%u). Must be between 5 and 32 (10 and 64 hex digits)\n", u->engine.len);
3183 if ( u->user.userName.len == ue->user.userName.len
3184 && u->engine.len == ue->engine.len ) {
3186 if (u->engine.len > 0 && memcmp( u->engine.data, ue->engine.data, u->engine.len ) == 0) {
3187 if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) {
3188 /* XXX: make a string for the engineId */
3189 g_string_append_printf(es,"Duplicate key (userName='%s')\n",ue->user.userName.data);
3193 if (u->engine.len == 0) {
3194 if ( memcmp( u->user.userName.data, ue->user.userName.data, ue->user.userName.len ) == 0 ) {
3195 g_string_append_printf(es,"Duplicate key (userName='%s' engineId=NONE)\n",ue->user.userName.data);
3202 g_string_truncate(es,es->len-2);
3203 *err = ep_strdup(es->str);
3206 g_string_free(es,TRUE);
3212 UAT_LSTRING_CB_DEF(snmp_users,userName,snmp_ue_assoc_t,user.userName.data,user.userName.len)
3213 UAT_LSTRING_CB_DEF(snmp_users,authPassword,snmp_ue_assoc_t,user.authPassword.data,user.authPassword.len)
3214 UAT_LSTRING_CB_DEF(snmp_users,privPassword,snmp_ue_assoc_t,user.privPassword.data,user.privPassword.len)
3215 UAT_BUFFER_CB_DEF(snmp_users,engine_id,snmp_ue_assoc_t,engine.data,engine.len)
3216 UAT_VS_DEF(snmp_users,auth_model,snmp_ue_assoc_t,0,"MD5")
3217 UAT_VS_DEF(snmp_users,priv_proto,snmp_ue_assoc_t,0,"DES")
3220 snmp_specific_trap_copy_cb(void *dest, const void *orig, size_t len _U_)
3222 snmp_st_assoc_t *u = dest;
3223 const snmp_st_assoc_t *o = orig;
3225 u->enterprise = g_strdup(o->enterprise);
3227 u->desc = g_strdup(o->desc);
3233 snmp_specific_trap_free_cb(void *r)
3235 snmp_st_assoc_t *u = r;
3237 g_free(u->enterprise);
3241 UAT_CSTRING_CB_DEF(specific_traps, enterprise, snmp_st_assoc_t)
3242 UAT_DEC_CB_DEF(specific_traps, trap, snmp_st_assoc_t)
3243 UAT_CSTRING_CB_DEF(specific_traps, desc, snmp_st_assoc_t)
3245 /*--- proto_register_snmp -------------------------------------------*/
3246 void proto_register_snmp(void) {
3247 /* List of fields */
3248 static hf_register_info hf[] = {
3249 { &hf_snmp_v3_flags_auth,
3250 { "Authenticated", "snmp.v3.flags.auth", FT_BOOLEAN, 8,
3251 TFS(&tfs_set_notset), TH_AUTH, NULL, HFILL }},
3252 { &hf_snmp_v3_flags_crypt,
3253 { "Encrypted", "snmp.v3.flags.crypt", FT_BOOLEAN, 8,
3254 TFS(&tfs_set_notset), TH_CRYPT, NULL, HFILL }},
3255 { &hf_snmp_v3_flags_report,
3256 { "Reportable", "snmp.v3.flags.report", FT_BOOLEAN, 8,
3257 TFS(&tfs_set_notset), TH_REPORT, NULL, HFILL }},
3258 { &hf_snmp_engineid_conform, {
3259 "Engine ID Conformance", "snmp.engineid.conform", FT_BOOLEAN, 8,
3260 TFS(&tfs_snmp_engineid_conform), F_SNMP_ENGINEID_CONFORM, "Engine ID RFC3411 Conformance", HFILL }},
3261 { &hf_snmp_engineid_enterprise, {
3262 "Engine Enterprise ID", "snmp.engineid.enterprise", FT_UINT32, BASE_DEC|BASE_EXT_STRING,
3263 &sminmpec_values_ext, 0, NULL, HFILL }},
3264 { &hf_snmp_engineid_format, {
3265 "Engine ID Format", "snmp.engineid.format", FT_UINT8, BASE_DEC,
3266 VALS(snmp_engineid_format_vals), 0, NULL, HFILL }},
3267 { &hf_snmp_engineid_ipv4, {
3268 "Engine ID Data: IPv4 address", "snmp.engineid.ipv4", FT_IPv4, BASE_NONE,
3269 NULL, 0, NULL, HFILL }},
3270 { &hf_snmp_engineid_ipv6, {
3271 "Engine ID Data: IPv6 address", "snmp.engineid.ipv6", FT_IPv6, BASE_NONE,
3272 NULL, 0, NULL, HFILL }},
3273 { &hf_snmp_engineid_cisco_type, {
3274 "Engine ID Data: Cisco type", "snmp.engineid.cisco.type", FT_UINT8, BASE_NONE,
3275 VALS(snmp_engineid_cisco_type_vals), 0, NULL, HFILL }},
3276 { &hf_snmp_engineid_mac, {
3277 "Engine ID Data: MAC address", "snmp.engineid.mac", FT_ETHER, BASE_NONE,
3278 NULL, 0, NULL, HFILL }},
3279 { &hf_snmp_engineid_text, {
3280 "Engine ID Data: Text", "snmp.engineid.text", FT_STRING, BASE_NONE,
3281 NULL, 0, NULL, HFILL }},
3282 { &hf_snmp_engineid_time, {
3283 "Engine ID Data: Creation Time", "snmp.engineid.time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL,
3284 NULL, 0, NULL, HFILL }},
3285 { &hf_snmp_engineid_data, {
3286 "Engine ID Data", "snmp.engineid.data", FT_BYTES, BASE_NONE,
3287 NULL, 0, NULL, HFILL }},
3288 { &hf_snmp_msgAuthentication, {
3289 "Authentication", "snmp.v3.auth", FT_BOOLEAN, BASE_NONE,
3290 TFS(&auth_flags), 0, NULL, HFILL }},
3291 { &hf_snmp_decryptedPDU, {
3292 "Decrypted ScopedPDU", "snmp.decrypted_pdu", FT_BYTES, BASE_NONE,
3293 NULL, 0, "Decrypted PDU", HFILL }},
3294 { &hf_snmp_noSuchObject, {
3295 "noSuchObject", "snmp.noSuchObject", FT_NONE, BASE_NONE,
3296 NULL, 0, NULL, HFILL }},
3297 { &hf_snmp_noSuchInstance, {
3298 "noSuchInstance", "snmp.noSuchInstance", FT_NONE, BASE_NONE,
3299 NULL, 0, NULL, HFILL }},
3300 { &hf_snmp_endOfMibView, {
3301 "endOfMibView", "snmp.endOfMibView", FT_NONE, BASE_NONE,
3302 NULL, 0, NULL, HFILL }},
3303 { &hf_snmp_unSpecified, {
3304 "unSpecified", "snmp.unSpecified", FT_NONE, BASE_NONE,
3305 NULL, 0, NULL, HFILL }},
3307 { &hf_snmp_integer32_value, {
3308 "Value (Integer32)", "snmp.value.int", FT_INT64, BASE_DEC,
3309 NULL, 0, NULL, HFILL }},
3310 { &hf_snmp_octetstring_value, {
3311 "Value (OctetString)", "snmp.value.octets", FT_BYTES, BASE_NONE,
3312 NULL, 0, NULL, HFILL }},
3313 { &hf_snmp_oid_value, {
3314 "Value (OID)", "snmp.value.oid", FT_OID, BASE_NONE,
3315 NULL, 0, NULL, HFILL }},
3316 { &hf_snmp_null_value, {
3317 "Value (Null)", "snmp.value.null", FT_NONE, BASE_NONE,
3318 NULL, 0, NULL, HFILL }},
3319 { &hf_snmp_ipv4_value, {
3320 "Value (IpAddress)", "snmp.value.ipv4", FT_IPv4, BASE_NONE,
3321 NULL, 0, NULL, HFILL }},
3322 { &hf_snmp_ipv6_value, {
3323 "Value (IpAddress)", "snmp.value.ipv6", FT_IPv6, BASE_NONE,
3324 NULL, 0, NULL, HFILL }},
3325 { &hf_snmp_anyaddress_value, {
3326 "Value (IpAddress)", "snmp.value.addr", FT_BYTES, BASE_NONE,
3327 NULL, 0, NULL, HFILL }},
3328 { &hf_snmp_unsigned32_value, {
3329 "Value (Unsigned32)", "snmp.value.u32", FT_INT64, BASE_DEC,
3330 NULL, 0, NULL, HFILL }},
3331 { &hf_snmp_gauge32_value, {
3332 "Value (Gauge32)", "snmp.value.g32", FT_INT64, BASE_DEC,
3333 NULL, 0, NULL, HFILL }},
3334 { &hf_snmp_unknown_value, {
3335 "Value (Unknown)", "snmp.value.unk", FT_BYTES, BASE_NONE,
3336 NULL, 0, NULL, HFILL }},
3337 { &hf_snmp_counter_value, {
3338 "Value (Counter32)", "snmp.value.counter", FT_UINT64, BASE_DEC,
3339 NULL, 0, NULL, HFILL }},
3340 { &hf_snmp_big_counter_value, {
3341 "Value (Counter64)", "snmp.value.counter", FT_UINT64, BASE_DEC,
3342 NULL, 0, NULL, HFILL }},
3343 { &hf_snmp_nsap_value, {
3344 "Value (NSAP)", "snmp.value.nsap", FT_UINT64, BASE_DEC,
3345 NULL, 0, NULL, HFILL }},
3346 { &hf_snmp_timeticks_value, {
3347 "Value (Timeticks)", "snmp.value.timeticks", FT_UINT64, BASE_DEC,
3348 NULL, 0, NULL, HFILL }},
3349 { &hf_snmp_opaque_value, {
3350 "Value (Opaque)", "snmp.value.opaque", FT_BYTES, BASE_NONE,
3351 NULL, 0, NULL, HFILL }},
3352 { &hf_snmp_objectname, {
3353 "Object Name", "snmp.name", FT_OID, BASE_NONE,
3354 NULL, 0, NULL, HFILL }},
3355 { &hf_snmp_scalar_instance_index, {
3356 "Scalar Instance Index", "snmp.name.index", FT_UINT64, BASE_DEC,
3357 NULL, 0, NULL, HFILL }},
3361 /*--- Included file: packet-snmp-hfarr.c ---*/
3362 #line 1 "packet-snmp-hfarr.c"
3363 { &hf_snmp_SMUX_PDUs_PDU,
3364 { "SMUX-PDUs", "snmp.SMUX_PDUs",
3365 FT_UINT32, BASE_DEC, VALS(snmp_SMUX_PDUs_vals), 0,
3368 { "version", "snmp.version",
3369 FT_INT32, BASE_DEC, VALS(snmp_Version_vals), 0,
3371 { &hf_snmp_community,
3372 { "community", "snmp.community",
3373 FT_STRING, BASE_NONE, NULL, 0,
3376 { "data", "snmp.data",
3377 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3379 { &hf_snmp_parameters,
3380 { "parameters", "snmp.parameters",
3381 FT_BYTES, BASE_NONE, NULL, 0,
3382 "OCTET_STRING", HFILL }},
3384 { "datav2u", "snmp.datav2u",
3385 FT_UINT32, BASE_DEC, VALS(snmp_T_datav2u_vals), 0,
3387 { &hf_snmp_v2u_plaintext,
3388 { "plaintext", "snmp.plaintext",
3389 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3391 { &hf_snmp_encrypted,
3392 { "encrypted", "snmp.encrypted",
3393 FT_BYTES, BASE_NONE, NULL, 0,
3394 "OCTET_STRING", HFILL }},
3395 { &hf_snmp_msgAuthoritativeEngineID,
3396 { "msgAuthoritativeEngineID", "snmp.msgAuthoritativeEngineID",
3397 FT_BYTES, BASE_NONE, NULL, 0,
3399 { &hf_snmp_msgAuthoritativeEngineBoots,
3400 { "msgAuthoritativeEngineBoots", "snmp.msgAuthoritativeEngineBoots",
3401 FT_UINT32, BASE_DEC, NULL, 0,
3403 { &hf_snmp_msgAuthoritativeEngineTime,
3404 { "msgAuthoritativeEngineTime", "snmp.msgAuthoritativeEngineTime",
3405 FT_UINT32, BASE_DEC, NULL, 0,
3407 { &hf_snmp_msgUserName,
3408 { "msgUserName", "snmp.msgUserName",
3409 FT_STRING, BASE_NONE, NULL, 0,
3411 { &hf_snmp_msgAuthenticationParameters,
3412 { "msgAuthenticationParameters", "snmp.msgAuthenticationParameters",
3413 FT_BYTES, BASE_NONE, NULL, 0,
3415 { &hf_snmp_msgPrivacyParameters,
3416 { "msgPrivacyParameters", "snmp.msgPrivacyParameters",
3417 FT_BYTES, BASE_NONE, NULL, 0,
3419 { &hf_snmp_msgVersion,
3420 { "msgVersion", "snmp.msgVersion",
3421 FT_INT32, BASE_DEC, VALS(snmp_Version_vals), 0,
3422 "Version", HFILL }},
3423 { &hf_snmp_msgGlobalData,
3424 { "msgGlobalData", "snmp.msgGlobalData",
3425 FT_NONE, BASE_NONE, NULL, 0,
3426 "HeaderData", HFILL }},
3427 { &hf_snmp_msgSecurityParameters,
3428 { "msgSecurityParameters", "snmp.msgSecurityParameters",
3429 FT_BYTES, BASE_NONE, NULL, 0,
3432 { "msgData", "snmp.msgData",
3433 FT_UINT32, BASE_DEC, VALS(snmp_ScopedPduData_vals), 0,
3434 "ScopedPduData", HFILL }},
3436 { "msgID", "snmp.msgID",
3437 FT_UINT32, BASE_DEC, NULL, 0,
3438 "INTEGER_0_2147483647", HFILL }},
3439 { &hf_snmp_msgMaxSize,
3440 { "msgMaxSize", "snmp.msgMaxSize",
3441 FT_UINT32, BASE_DEC, NULL, 0,
3442 "INTEGER_484_2147483647", HFILL }},
3443 { &hf_snmp_msgFlags,
3444 { "msgFlags", "snmp.msgFlags",
3445 FT_BYTES, BASE_NONE, NULL, 0,
3447 { &hf_snmp_msgSecurityModel,
3448 { "msgSecurityModel", "snmp.msgSecurityModel",
3449 FT_UINT32, BASE_DEC, VALS(sec_models), 0,
3451 { &hf_snmp_plaintext,
3452 { "plaintext", "snmp.plaintext",
3453 FT_NONE, BASE_NONE, NULL, 0,
3454 "ScopedPDU", HFILL }},
3455 { &hf_snmp_encryptedPDU,
3456 { "encryptedPDU", "snmp.encryptedPDU",
3457 FT_BYTES, BASE_NONE, NULL, 0,
3459 { &hf_snmp_contextEngineID,
3460 { "contextEngineID", "snmp.contextEngineID",
3461 FT_BYTES, BASE_NONE, NULL, 0,
3462 "SnmpEngineID", HFILL }},
3463 { &hf_snmp_contextName,
3464 { "contextName", "snmp.contextName",
3465 FT_BYTES, BASE_NONE, NULL, 0,
3466 "OCTET_STRING", HFILL }},
3467 { &hf_snmp_get_request,
3468 { "get-request", "snmp.get_request",
3469 FT_NONE, BASE_NONE, NULL, 0,
3470 "GetRequest_PDU", HFILL }},
3471 { &hf_snmp_get_next_request,
3472 { "get-next-request", "snmp.get_next_request",
3473 FT_NONE, BASE_NONE, NULL, 0,
3474 "GetNextRequest_PDU", HFILL }},
3475 { &hf_snmp_get_response,
3476 { "get-response", "snmp.get_response",
3477 FT_NONE, BASE_NONE, NULL, 0,
3478 "GetResponse_PDU", HFILL }},
3479 { &hf_snmp_set_request,
3480 { "set-request", "snmp.set_request",
3481 FT_NONE, BASE_NONE, NULL, 0,
3482 "SetRequest_PDU", HFILL }},
3484 { "trap", "snmp.trap",
3485 FT_NONE, BASE_NONE, NULL, 0,
3486 "Trap_PDU", HFILL }},
3487 { &hf_snmp_getBulkRequest,
3488 { "getBulkRequest", "snmp.getBulkRequest",
3489 FT_NONE, BASE_NONE, NULL, 0,
3490 "GetBulkRequest_PDU", HFILL }},
3491 { &hf_snmp_informRequest,
3492 { "informRequest", "snmp.informRequest",
3493 FT_NONE, BASE_NONE, NULL, 0,
3494 "InformRequest_PDU", HFILL }},
3495 { &hf_snmp_sNMPv2_Trap,
3496 { "sNMPv2-Trap", "snmp.sNMPv2_Trap",
3497 FT_NONE, BASE_NONE, NULL, 0,
3498 "SNMPv2_Trap_PDU", HFILL }},
3500 { "report", "snmp.report",
3501 FT_NONE, BASE_NONE, NULL, 0,
3502 "Report_PDU", HFILL }},
3503 { &hf_snmp_request_id,
3504 { "request-id", "snmp.request_id",
3505 FT_INT32, BASE_DEC, NULL, 0,
3506 "INTEGER", HFILL }},
3507 { &hf_snmp_error_status,
3508 { "error-status", "snmp.error_status",
3509 FT_INT32, BASE_DEC, VALS(snmp_T_error_status_vals), 0,
3511 { &hf_snmp_error_index,
3512 { "error-index", "snmp.error_index",
3513 FT_INT32, BASE_DEC, NULL, 0,
3514 "INTEGER", HFILL }},
3515 { &hf_snmp_variable_bindings,
3516 { "variable-bindings", "snmp.variable_bindings",
3517 FT_UINT32, BASE_DEC, NULL, 0,
3518 "VarBindList", HFILL }},
3519 { &hf_snmp_bulkPDU_request_id,
3520 { "request-id", "snmp.request_id",
3521 FT_INT32, BASE_DEC, NULL, 0,
3522 "Integer32", HFILL }},
3523 { &hf_snmp_non_repeaters,
3524 { "non-repeaters", "snmp.non_repeaters",
3525 FT_UINT32, BASE_DEC, NULL, 0,
3526 "INTEGER_0_2147483647", HFILL }},
3527 { &hf_snmp_max_repetitions,
3528 { "max-repetitions", "snmp.max_repetitions",
3529 FT_UINT32, BASE_DEC, NULL, 0,
3530 "INTEGER_0_2147483647", HFILL }},
3531 { &hf_snmp_enterprise,
3532 { "enterprise", "snmp.enterprise",
3533 FT_OID, BASE_NONE, NULL, 0,
3534 "EnterpriseOID", HFILL }},
3535 { &hf_snmp_agent_addr,
3536 { "agent-addr", "snmp.agent_addr",
3537 FT_IPv4, BASE_NONE, NULL, 0,
3538 "NetworkAddress", HFILL }},
3539 { &hf_snmp_generic_trap,
3540 { "generic-trap", "snmp.generic_trap",
3541 FT_INT32, BASE_DEC, VALS(snmp_GenericTrap_vals), 0,
3542 "GenericTrap", HFILL }},
3543 { &hf_snmp_specific_trap,
3544 { "specific-trap", "snmp.specific_trap",
3545 FT_INT32, BASE_DEC, NULL, 0,
3546 "SpecificTrap", HFILL }},
3547 { &hf_snmp_time_stamp,
3548 { "time-stamp", "snmp.time_stamp",
3549 FT_UINT32, BASE_DEC, NULL, 0,
3550 "TimeTicks", HFILL }},
3552 { "name", "snmp.name",
3553 FT_OID, BASE_NONE, NULL, 0,
3554 "ObjectName", HFILL }},
3555 { &hf_snmp_valueType,
3556 { "valueType", "snmp.valueType",
3557 FT_NONE, BASE_NONE, NULL, 0,
3559 { &hf_snmp_VarBindList_item,
3560 { "VarBind", "snmp.VarBind",
3561 FT_NONE, BASE_NONE, NULL, 0,
3564 { "open", "snmp.open",
3565 FT_UINT32, BASE_DEC, VALS(snmp_OpenPDU_vals), 0,
3566 "OpenPDU", HFILL }},
3568 { "close", "snmp.close",
3569 FT_INT32, BASE_DEC, VALS(snmp_ClosePDU_U_vals), 0,
3570 "ClosePDU", HFILL }},
3571 { &hf_snmp_registerRequest,
3572 { "registerRequest", "snmp.registerRequest",
3573 FT_NONE, BASE_NONE, NULL, 0,
3574 "RReqPDU", HFILL }},
3575 { &hf_snmp_registerResponse,
3576 { "registerResponse", "snmp.registerResponse",
3577 FT_UINT32, BASE_DEC, VALS(snmp_RegisterResponse_vals), 0,
3579 { &hf_snmp_commitOrRollback,
3580 { "commitOrRollback", "snmp.commitOrRollback",
3581 FT_INT32, BASE_DEC, VALS(snmp_SOutPDU_U_vals), 0,
3582 "SOutPDU", HFILL }},
3584 { "rRspPDU", "snmp.rRspPDU",
3585 FT_INT32, BASE_DEC, VALS(snmp_RRspPDU_U_vals), 0,
3588 { "pDUs", "snmp.pDUs",
3589 FT_UINT32, BASE_DEC, VALS(snmp_PDUs_vals), 0,
3591 { &hf_snmp_smux_simple,
3592 { "smux-simple", "snmp.smux_simple",
3593 FT_NONE, BASE_NONE, NULL, 0,
3594 "SimpleOpen", HFILL }},
3595 { &hf_snmp_smux_version,
3596 { "smux-version", "snmp.smux_version",
3597 FT_INT32, BASE_DEC, VALS(snmp_T_smux_version_vals), 0,
3599 { &hf_snmp_identity,
3600 { "identity", "snmp.identity",
3601 FT_OID, BASE_NONE, NULL, 0,
3602 "OBJECT_IDENTIFIER", HFILL }},
3603 { &hf_snmp_description,
3604 { "description", "snmp.description",
3605 FT_BYTES, BASE_NONE, NULL, 0,
3606 "DisplayString", HFILL }},
3607 { &hf_snmp_password,
3608 { "password", "snmp.password",
3609 FT_BYTES, BASE_NONE, NULL, 0,
3610 "OCTET_STRING", HFILL }},
3612 { "subtree", "snmp.subtree",
3613 FT_OID, BASE_NONE, NULL, 0,
3614 "ObjectName", HFILL }},
3615 { &hf_snmp_priority,
3616 { "priority", "snmp.priority",
3617 FT_INT32, BASE_DEC, NULL, 0,
3618 "INTEGER_M1_2147483647", HFILL }},
3619 { &hf_snmp_operation,
3620 { "operation", "snmp.operation",
3621 FT_INT32, BASE_DEC, VALS(snmp_T_operation_vals), 0,
3624 /*--- End of included file: packet-snmp-hfarr.c ---*/
3625 #line 2137 "packet-snmp-template.c"
3628 /* List of subtrees */
3629 static gint *ett[] = {
3635 &ett_authParameters,
3640 &ett_decoding_error,
3642 /*--- Included file: packet-snmp-ettarr.c ---*/
3643 #line 1 "packet-snmp-ettarr.c"
3645 &ett_snmp_Messagev2u,
3646 &ett_snmp_T_datav2u,
3647 &ett_snmp_UsmSecurityParameters,
3648 &ett_snmp_SNMPv3Message,
3649 &ett_snmp_HeaderData,
3650 &ett_snmp_ScopedPduData,
3651 &ett_snmp_ScopedPDU,
3655 &ett_snmp_Trap_PDU_U,
3657 &ett_snmp_VarBindList,
3658 &ett_snmp_SMUX_PDUs,
3659 &ett_snmp_RegisterResponse,
3661 &ett_snmp_SimpleOpen_U,
3662 &ett_snmp_RReqPDU_U,
3664 /*--- End of included file: packet-snmp-ettarr.c ---*/
3665 #line 2153 "packet-snmp-template.c"
3667 module_t *snmp_module;
3669 static uat_field_t users_fields[] = {
3670 UAT_FLD_BUFFER(snmp_users,engine_id,"Engine ID","Engine-id for this entry (empty = any)"),
3671 UAT_FLD_LSTRING(snmp_users,userName,"Username","The username"),
3672 UAT_FLD_VS(snmp_users,auth_model,"Authentication model",auth_types,"Algorithm to be used for authentication."),
3673 UAT_FLD_LSTRING(snmp_users,authPassword,"Password","The password used for authenticating packets for this entry"),
3674 UAT_FLD_VS(snmp_users,priv_proto,"Privacy protocol",priv_types,"Algorithm to be used for privacy."),
3675 UAT_FLD_LSTRING(snmp_users,privPassword,"Privacy password","The password used for encrypting packets for this entry"),
3679 uat_t *assocs_uat = uat_new("SNMP Users",
3680 sizeof(snmp_ue_assoc_t),
3686 "ChSNMPUsersSection",
3688 snmp_users_update_cb,
3693 static uat_field_t specific_traps_flds[] = {
3694 UAT_FLD_CSTRING(specific_traps,enterprise,"Enterprise OID","Enterprise Object Identifier"),
3695 UAT_FLD_DEC(specific_traps,trap,"Trap Id","The specific-trap value"),
3696 UAT_FLD_CSTRING(specific_traps,desc,"Description","Trap type description"),
3700 uat_t* specific_traps_uat = uat_new("SNMP Enterprise Specific Trap Types",
3701 sizeof(snmp_st_assoc_t),
3702 "snmp_specific_traps",
3704 (void*) &specific_traps,
3705 &num_specific_traps,
3707 "ChSNMPEnterpriseSpecificTrapTypes",
3708 snmp_specific_trap_copy_cb,
3710 snmp_specific_trap_free_cb,
3712 specific_traps_flds);
3714 /* Register protocol */
3715 proto_snmp = proto_register_protocol(PNAME, PSNAME, PFNAME);
3716 new_register_dissector("snmp", dissect_snmp, proto_snmp);
3718 /* Register fields and subtrees */
3719 proto_register_field_array(proto_snmp, hf, array_length(hf));
3720 proto_register_subtree_array(ett, array_length(ett));
3723 /* Register configuration preferences */
3724 snmp_module = prefs_register_protocol(proto_snmp, process_prefs);
3725 prefs_register_bool_preference(snmp_module, "display_oid",
3726 "Show SNMP OID in info column",
3727 "Whether the SNMP OID should be shown in the info column",
3730 prefs_register_obsolete_preference(snmp_module, "mib_modules");
3731 prefs_register_obsolete_preference(snmp_module, "users_file");
3733 prefs_register_bool_preference(snmp_module, "desegment",
3734 "Reassemble SNMP-over-TCP messages\nspanning multiple TCP segments",
3735 "Whether the SNMP dissector should reassemble messages spanning multiple TCP segments."
3736 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
3739 prefs_register_bool_preference(snmp_module, "var_in_tree",
3740 "Display dissected variables inside SNMP tree",
3741 "ON - display dissected variables inside SNMP tree, OFF - display dissected variables in root tree after SNMP",
3744 prefs_register_uat_preference(snmp_module, "users_table",
3746 "Table of engine-user associations used for authentication and decryption",
3749 prefs_register_uat_preference(snmp_module, "specific_traps_table",
3750 "Enterprise Specific Trap Types",
3751 "Table of enterprise specific-trap type descriptions",
3752 specific_traps_uat);
3755 prefs_register_static_text_preference(snmp_module, "info_mibs",
3756 "MIB settings can be changed in the Name Resolution preferences",
3757 "MIB settings can be changed in the Name Resolution preferences");
3760 value_sub_dissectors_table = register_dissector_table("snmp.variable_oid","SNMP Variable OID", FT_STRING, BASE_NONE);
3762 register_init_routine(renew_ue_cache);
3764 register_ber_syntax_dissector("SNMP", proto_snmp, dissect_snmp_tcp);
3768 /*--- proto_reg_handoff_snmp ---------------------------------------*/
3769 void proto_reg_handoff_snmp(void) {
3770 dissector_handle_t snmp_tcp_handle;
3772 snmp_handle = find_dissector("snmp");
3774 dissector_add_uint("udp.port", UDP_PORT_SNMP, snmp_handle);
3775 dissector_add_uint("udp.port", UDP_PORT_SNMP_TRAP, snmp_handle);
3776 dissector_add_uint("udp.port", UDP_PORT_SNMP_PATROL, snmp_handle);
3777 dissector_add_uint("ethertype", ETHERTYPE_SNMP, snmp_handle);
3778 dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_AGENT, snmp_handle);
3779 dissector_add_uint("ipx.socket", IPX_SOCKET_SNMP_SINK, snmp_handle);
3780 dissector_add_uint("hpext.dxsap", HPEXT_SNMP, snmp_handle);
3782 snmp_tcp_handle = create_dissector_handle(dissect_snmp_tcp, proto_snmp);
3783 dissector_add_uint("tcp.port", TCP_PORT_SNMP, snmp_tcp_handle);
3784 dissector_add_uint("tcp.port", TCP_PORT_SNMP_TRAP, snmp_tcp_handle);
3786 data_handle = find_dissector("data");
3789 * Process preference settings.
3791 * We can't do this in the register routine, as preferences aren't
3792 * read until all dissector register routines have been called (so
3793 * that all dissector preferences have been registered).
3800 proto_register_smux(void)
3802 static hf_register_info hf[] = {
3804 { "Version", "smux.version", FT_UINT8, BASE_DEC, NULL,
3805 0x0, NULL, HFILL }},
3807 { "PDU type", "smux.pdutype", FT_UINT8, BASE_DEC, VALS(smux_types),
3808 0x0, NULL, HFILL }},
3810 static gint *ett[] = {
3814 proto_smux = proto_register_protocol("SNMP Multiplex Protocol",
3816 proto_register_field_array(proto_smux, hf, array_length(hf));
3817 proto_register_subtree_array(ett, array_length(ett));
3822 proto_reg_handoff_smux(void)
3824 dissector_handle_t smux_handle;
3826 smux_handle = create_dissector_handle(dissect_smux, proto_smux);
3827 dissector_add_uint("tcp.port", TCP_PORT_SMUX, smux_handle);