2 * Routines for the Internet Security Association and Key Management Protocol
3 * (ISAKMP) (RFC 2408) and the Internet IP Security Domain of Interpretation
4 * for ISAKMP (RFC 2407)
5 * Brad Robel-Forrest <brad.robel-forrest@watchguard.com>
7 * $Id: packet-isakmp.c,v 1.72 2003/11/04 21:44:27 guy Exp $
9 * Ethereal - Network traffic analyzer
10 * By Gerald Combs <gerald@ethereal.com>
11 * Copyright 1998 Gerald Combs
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
37 #ifdef NEED_SNPRINTF_H
38 # include "snprintf.h"
41 #include <epan/packet.h>
42 #include <epan/ipv6-utils.h>
45 #define isakmp_min(a, b) ((a<b) ? a : b)
47 static int proto_isakmp = -1;
49 static gint ett_isakmp = -1;
50 static gint ett_isakmp_flags = -1;
51 static gint ett_isakmp_payload = -1;
53 #define UDP_PORT_ISAKMP 500
54 #define TCP_PORT_ISAKMP 500
56 #define NUM_PROTO_TYPES 5
57 #define proto2str(t) \
58 ((t < NUM_PROTO_TYPES) ? prototypestr[t] : "UNKNOWN-PROTO-TYPE")
60 static const char *prototypestr[NUM_PROTO_TYPES] = {
68 #define NUM_P1_ATT_TYPES 17
69 #define p1_atttype2str(t) \
70 ((t < NUM_P1_ATT_TYPES) ? p1_atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
72 static const char *p1_atttypestr[NUM_P1_ATT_TYPES] = {
73 "UNKNOWN-ATTRIBUTE-TYPE",
74 "Encryption-Algorithm",
76 "Authentication-Method",
80 "Group-Generator-One",
81 "Group-Generator-Two",
92 #define NUM_ATT_TYPES 11
93 #define atttype2str(t) \
94 ((t < NUM_ATT_TYPES) ? atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
96 static const char *atttypestr[NUM_ATT_TYPES] = {
97 "UNKNOWN-ATTRIBUTE-TYPE",
101 "Encapsulation-Mode",
102 "Authentication-Algorithm",
105 "Compress-Dictinary-Size",
106 "Compress-Private-Algorithm",
110 #define NUM_TRANS_TYPES 2
111 #define trans2str(t) \
112 ((t < NUM_TRANS_TYPES) ? transtypestr[t] : "UNKNOWN-TRANS-TYPE")
114 static const char *transtypestr[NUM_TRANS_TYPES] = {
119 #define NUM_AH_TRANS_TYPES 8
120 #define ah_trans2str(t) \
121 ((t < NUM_AH_TRANS_TYPES) ? ah_transtypestr[t] : "UNKNOWN-AH-TRANS-TYPE")
123 static const char *ah_transtypestr[NUM_AH_TRANS_TYPES] = {
134 #define NUM_ESP_TRANS_TYPES 13
135 #define esp_trans2str(t) \
136 ((t < NUM_ESP_TRANS_TYPES) ? esp_transtypestr[t] : "UNKNOWN-ESP-TRANS-TYPE")
138 static const char *esp_transtypestr[NUM_ESP_TRANS_TYPES] = {
154 #define NUM_IPCOMP_TRANS_TYPES 5
155 #define ipcomp_trans2str(t) \
156 ((t < NUM_IPCOMP_TRANS_TYPES) ? ipcomp_transtypestr[t] : "UNKNOWN-IPCOMP-TRANS-TYPE")
158 static const char *ipcomp_transtypestr[NUM_IPCOMP_TRANS_TYPES] = {
166 #define NUM_ID_TYPES 12
168 ((t < NUM_ID_TYPES) ? idtypestr[t] : "UNKNOWN-ID-TYPE")
170 static const char *idtypestr[NUM_ID_TYPES] = {
185 #define NUM_GRPDESC_TYPES 19
186 #define grpdesc2str(t) ((t < NUM_GRPDESC_TYPES) ? grpdescstr[t] : "UNKNOWN-GROUP-DESCRIPTION")
188 static const char *grpdescstr[NUM_GRPDESC_TYPES] = {
190 "Default 768-bit MODP group",
191 "Alternate 1024-bit MODP group",
192 "EC2N group on GP[2^155] group",
193 "EC2N group on GP[2^185] group",
194 "1536 bit MODP group",
195 "EC2N group over GF[2^163]",
196 "EC2N group over GF[2^163]",
197 "EC2N group over GF[2^283]",
198 "EC2N group over GF[2^283]",
199 "EC2N group over GF[2^409]",
200 "EC2N group over GF[2^409]",
201 "EC2N group over GF[2^571]",
202 "EC2N group over GF[2^571]",
203 "2048 bit MODP group",
204 "3072 bit MODP group",
205 "4096 bit MODP group",
206 "6144 bit MODP group",
207 "8192 bit MODP group",
224 static proto_tree *dissect_payload_header(tvbuff_t *, int, int, guint8,
225 guint8 *, guint16 *, proto_tree *);
227 static void dissect_sa(tvbuff_t *, int, int, proto_tree *, int);
228 static void dissect_proposal(tvbuff_t *, int, int, proto_tree *, int);
229 static void dissect_transform(tvbuff_t *, int, int, proto_tree *, int);
230 static void dissect_key_exch(tvbuff_t *, int, int, proto_tree *, int);
231 static void dissect_id(tvbuff_t *, int, int, proto_tree *, int);
232 static void dissect_cert(tvbuff_t *, int, int, proto_tree *, int);
233 static void dissect_certreq(tvbuff_t *, int, int, proto_tree *, int);
234 static void dissect_hash(tvbuff_t *, int, int, proto_tree *, int);
235 static void dissect_sig(tvbuff_t *, int, int, proto_tree *, int);
236 static void dissect_nonce(tvbuff_t *, int, int, proto_tree *, int);
237 static void dissect_notif(tvbuff_t *, int, int, proto_tree *, int);
238 static void dissect_delete(tvbuff_t *, int, int, proto_tree *, int);
239 static void dissect_vid(tvbuff_t *, int, int, proto_tree *, int);
240 static void dissect_config(tvbuff_t *, int, int, proto_tree *, int);
241 static void dissect_nat_discovery(tvbuff_t *, int, int, proto_tree *, int);
242 static void dissect_nat_original_address(tvbuff_t *, int, int, proto_tree *, int);
244 static const char *payloadtype2str(guint8);
245 static const char *exchtype2str(guint8);
246 static const char *doitype2str(guint32);
247 static const char *msgtype2str(guint16);
248 static const char *situation2str(guint32);
249 static const char *value2str(int, guint16, guint16);
250 static const char *attrtype2str(guint8);
251 static const char *cfgattrident2str(guint16);
252 static const char *certtype2str(guint8);
254 static gboolean get_num(tvbuff_t *, int, guint16, guint32 *);
256 #define LOAD_TYPE_NONE 0 /* payload type for None */
257 #define LOAD_TYPE_PROPOSAL 2 /* payload type for Proposal */
258 #define LOAD_TYPE_TRANSFORM 3 /* payload type for Transform */
259 #define NUM_LOAD_TYPES 17
260 #define loadtype2str(t) \
261 ((t < NUM_LOAD_TYPES) ? strfuncs[t].str : "Unknown payload type")
263 static struct strfunc {
265 void (*func)(tvbuff_t *, int, int, proto_tree *, int);
266 } strfuncs[NUM_LOAD_TYPES] = {
268 {"Security Association", dissect_sa },
269 {"Proposal", dissect_proposal },
270 {"Transform", dissect_transform },
271 {"Key Exchange", dissect_key_exch },
272 {"Identification", dissect_id },
273 {"Certificate", dissect_cert },
274 {"Certificate Request", dissect_certreq },
275 {"Hash", dissect_hash },
276 {"Signature", dissect_sig },
277 {"Nonce", dissect_nonce },
278 {"Notification", dissect_notif },
279 {"Delete", dissect_delete },
280 {"Vendor ID", dissect_vid },
281 {"Attrib", dissect_config },
282 {"NAT-Discovery", dissect_nat_discovery }, /* draft-ietf-ipsec-nat-t-ike */
283 {"NAT-Original Address", dissect_nat_original_address } /* draft-ietf-ipsec-nat-t-ike */
287 #define VID_MS_LEN 20
288 static const guint8 VID_MS_W2K_WXP[VID_MS_LEN] = {0x1E, 0x2B, 0x51, 0x69, 0x5, 0x99, 0x1C, 0x7D, 0x7C, 0x96, 0xFC, 0xBF, 0xB5, 0x87, 0xE4, 0x61, 0x0, 0x0, 0x0, 0x2}; /* according to http://www.microsoft.com/technet/treeview/default.asp?url=/technet/columns/cableguy/cg0602.asp */
290 #define VID_CP_LEN 20
291 static const guint8 VID_CP[VID_CP_LEN] = {0xF4, 0xED, 0x19, 0xE0, 0xC1, 0x14, 0xEB, 0x51, 0x6F, 0xAA, 0xAC, 0x0E, 0xE3, 0x7D, 0xAF, 0x28, 0x7, 0xB4, 0x38, 0x1F};
293 static const guint8 VID_CYBERGUARD[VID_LEN] = {0x9A, 0xA1, 0xF3, 0xB4, 0x34, 0x72, 0xA4, 0x5D, 0x5F, 0x50, 0x6A, 0xEB, 0x26, 0xC, 0xF2, 0x14};
295 static const guint8 VID_draft_ietf_ipsec_nat_t_ike_03[VID_LEN] = {0x7D, 0x94, 0x19, 0xA6, 0x53, 0x10, 0xCA, 0x6F, 0x2C, 0x17, 0x9D, 0x92, 0x15, 0x52, 0x9d, 0x56}; /* according to http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-03.txt */
297 static const guint8 VID_SSH_IPSEC_EXPRESS_1_1_0[VID_LEN] = {0xfB, 0xF4, 0x76, 0x14, 0x98, 0x40, 0x31, 0xFA, 0x8E, 0x3B, 0xB6, 0x19, 0x80, 0x89, 0xB2, 0x23}; /* Ssh Communications Security IPSEC Express version 1.1.0 */
299 static const guint8 VID_SSH_IPSEC_EXPRESS_1_1_1[VID_LEN] = {0x19, 0x52, 0xDC, 0x91, 0xAC, 0x20, 0xF6, 0x46, 0xFB, 0x01, 0xCF, 0x42, 0xA3, 0x3A, 0xEE, 0x30}; /* Ssh Communications Security IPSEC Express version 1.1.1 */
301 static const guint8 VID_SSH_IPSEC_EXPRESS_1_1_2[VID_LEN] = {0xE8, 0xBF, 0xFA, 0x64, 0x3E, 0x5C, 0x8F, 0x2C, 0xD1, 0x0F, 0xDA, 0x73, 0x70, 0xB6, 0xEB, 0xE5}; /* Ssh Communications Security IPSEC Express version 1.1.2 */
303 static const guint8 VID_SSH_IPSEC_EXPRESS_1_2_1[VID_LEN] = {0xC1, 0x11, 0x1B, 0x2D, 0xEE, 0x8C, 0xBC, 0x3D, 0x62, 0x05, 0x73, 0xEC, 0x57, 0xAA, 0xB9, 0xCB}; /* Ssh Communications Security IPSEC Express version 1.2.1 */
305 static const guint8 VID_SSH_IPSEC_EXPRESS_1_2_2[VID_LEN] = {0x09, 0xEC, 0x27, 0xBF, 0xBC, 0x09, 0xC7, 0x58, 0x23, 0xCF, 0xEC, 0xBF, 0xFE, 0x56, 0x5A, 0x2E}; /* Ssh Communications Security IPSEC Express version 1.2.2 */
307 static const guint8 VID_SSH_IPSEC_EXPRESS_2_0_0[VID_LEN] = {0x7F, 0x21, 0xA5, 0x96, 0xE4, 0xE3, 0x18, 0xF0, 0xB2, 0xF4, 0x94, 0x4C, 0x23, 0x84, 0xCB, 0x84}; /* SSH Communications Security IPSEC Express version 2.0.0 */
309 static const guint8 VID_SSH_IPSEC_EXPRESS_2_1_0[VID_LEN] = {0x28, 0x36, 0xD1, 0xFD, 0x28, 0x07, 0xBC, 0x9E, 0x5A, 0xE3, 0x07, 0x86, 0x32, 0x04, 0x51, 0xEC}; /* SSH Communications Security IPSEC Express version 2.1.0 */
311 static const guint8 VID_SSH_IPSEC_EXPRESS_2_1_1[VID_LEN] = {0xA6, 0x8D, 0xE7, 0x56, 0xA9, 0xC5, 0x22, 0x9B, 0xAE, 0x66, 0x49, 0x80, 0x40, 0x95, 0x1A, 0xD5}; /* SSH Communications Security IPSEC Express version 2.1.1 */
313 static const guint8 VID_SSH_IPSEC_EXPRESS_2_1_2[VID_LEN] = {0x3F, 0x23, 0x72, 0x86, 0x7E, 0x23, 0x7C, 0x1C, 0xD8, 0x25, 0x0A, 0x75, 0x55, 0x9C, 0xAE, 0x20}; /* SSH Communications Security IPSEC Express version 2.1.2 */
315 static const guint8 VID_SSH_IPSEC_EXPRESS_3_0_0[VID_LEN] = {0x0E, 0x58, 0xD5, 0x77, 0x4D, 0xF6, 0x02, 0x00, 0x7D, 0x0B, 0x02, 0x44, 0x36, 0x60, 0xF7, 0xEB}; /* SSH Communications Security IPSEC Express version 3.0.0 */
317 static const guint8 VID_SSH_IPSEC_EXPRESS_3_0_1[VID_LEN] = {0xF5, 0xCE, 0x31, 0xEB, 0xC2, 0x10, 0xF4, 0x43, 0x50, 0xCF, 0x71, 0x26, 0x5B, 0x57, 0x38, 0x0F}; /* SSH Communications Security IPSEC Express version 3.0.1 */
319 static const guint8 VID_SSH_IPSEC_EXPRESS_4_0_0[VID_LEN] = {0xF6, 0x42, 0x60, 0xAF, 0x2E, 0x27, 0x42, 0xDA, 0xDD, 0xD5, 0x69, 0x87, 0x06, 0x8A, 0x99, 0xA0}; /* SSH Communications Security IPSEC Express version 4.0.0 */
321 static const guint8 VID_SSH_IPSEC_EXPRESS_4_0_1[VID_LEN] = {0x7A, 0x54, 0xD3, 0xBD, 0xB3, 0xB1, 0xE6, 0xD9, 0x23, 0x89, 0x20, 0x64, 0xBE, 0x2D, 0x98, 0x1C}; /* SSH Communications Security IPSEC Express version 4.0.1 */
323 static const guint8 VID_SSH_IPSEC_EXPRESS_4_1_0[VID_LEN] = {0x9A, 0xA1, 0xF3, 0xB4, 0x34, 0x72, 0xA4, 0x5D, 0x5F, 0x50, 0x6A, 0xEB, 0x26, 0x0C, 0xF2, 0x14}; /* SSH Communications Security IPSEC Express version 4.1.0 */
325 static const guint8 VID_SSH_IPSEC_EXPRESS_4_1_1[VID_LEN] = {0x89, 0xF7, 0xB7, 0x60, 0xD8, 0x6B, 0x01, 0x2A, 0xCF, 0x26, 0x33, 0x82, 0x39, 0x4D, 0x96, 0x2F}; /* SSH Communications Security IPSEC Express version 4.1.1 */
327 static const guint8 VID_SSH_IPSEC_EXPRESS_5_0[VID_LEN] = {0xB0, 0x37, 0xA2, 0x1A, 0xCE, 0xCC, 0xB5, 0x57, 0x0F, 0x60, 0x25, 0x46, 0xF9, 0x7B, 0xDE, 0x8C}; /* SSH Communications Security IPSEC Express version 5.0 */
329 static const guint8 VID_SSH_IPSEC_EXPRESS_5_0_0[VID_LEN] = {0x2B, 0x2D, 0xAD, 0x97, 0xC4, 0xD1, 0x40, 0x93, 0x00, 0x53, 0x28, 0x7F, 0x99, 0x68, 0x50, 0xB0}; /* SSH Communications Security IPSEC Express version 5.0.0 */
331 static const guint8 VID_SSH_IPSEC_EXPRESS_5_1_0[VID_LEN] = {0x45, 0xE1, 0x7F, 0x3A, 0xBE, 0x93, 0x94, 0x4C, 0xB2, 0x02, 0x91, 0x0C, 0x59, 0xEF, 0x80, 0x6B}; /* SSH Communications Security IPSEC Express version 5.1.0 */
333 static const guint8 VID_SSH_IPSEC_EXPRESS_5_1_1[VID_LEN] = {0x59, 0x25, 0x85, 0x9F, 0x73, 0x77, 0xED, 0x78, 0x16, 0xD2, 0xFB, 0x81, 0xC0, 0x1F, 0xA5, 0x51}; /* SSH Communications Security IPSEC Express version 5.1.1 */
335 static const guint8 VID_SSH_SENTINEL[VID_LEN] = {0x05, 0x41, 0x82, 0xA0, 0x7C, 0x7A, 0xE2, 0x06, 0xF9, 0xD2, 0xCF, 0x9D, 0x24, 0x32, 0xC4, 0x82}; /* SSH Sentinel */
337 static const guint8 VID_SSH_SENTINEL_1_1[VID_LEN] = {0xB9, 0x16, 0x23, 0xE6, 0x93, 0xCA, 0x18, 0xA5, 0x4C, 0x6A, 0x27, 0x78, 0x55, 0x23, 0x05, 0xE8}; /* SSH Sentinel 1.1 */
339 static const guint8 VID_SSH_SENTINEL_1_2[VID_LEN] = {0x54, 0x30, 0x88, 0x8D, 0xE0, 0x1A, 0x31, 0xA6, 0xFA, 0x8F, 0x60, 0x22, 0x4E, 0x44, 0x99, 0x58}; /* SSH Sentinel 1.2 */
341 static const guint8 VID_SSH_SENTINEL_1_3[VID_LEN] = {0x7E, 0xE5, 0xCB, 0x85, 0xF7, 0x1C, 0xE2, 0x59, 0xC9, 0x4A, 0x5C, 0x73, 0x1E, 0xE4, 0xE7, 0x52}; /* SSH Sentinel 1.3 */
343 static const guint8 VID_SSH_QUICKSEC_0_9_0[VID_LEN] = {0x37, 0xEB, 0xA0, 0xC4, 0x13, 0x61, 0x84, 0xE7, 0xDA, 0xF8, 0x56, 0x2A, 0x77, 0x06, 0x0B, 0x4A}; /* SSH Communications Security QuickSec 0.9.0 */
345 static const guint8 VID_SSH_QUICKSEC_1_1_0[VID_LEN] = {0x5D, 0x72, 0x92, 0x5E, 0x55, 0x94, 0x8A, 0x96, 0x61, 0xA7, 0xFC, 0x48, 0xFD, 0xEC, 0x7F, 0xF9}; /* SSH Communications Security QuickSec 1.1.0 */
347 static const guint8 VID_SSH_QUICKSEC_1_1_1[VID_LEN] = {0x77, 0x7F, 0xBF, 0x4C, 0x5A, 0xF6, 0xD1, 0xCD, 0xD4, 0xB8, 0x95, 0xA0, 0x5B, 0xF8, 0x25, 0x94}; /* SSH Communications Security QuickSec 1.1.1 */
349 static const guint8 VID_SSH_QUICKSEC_1_1_2[VID_LEN] = {0x2C, 0xDF, 0x08, 0xE7, 0x12, 0xED, 0xE8, 0xA5, 0x97, 0x87, 0x61, 0x26, 0x7C, 0xD1, 0x9B, 0x91}; /* SSH Communications Security QuickSec 1.1.2 */
351 static const guint8 VID_SSH_QUICKSEC_1_1_3[VID_LEN] = {0x59, 0xE4, 0x54, 0xA8, 0xC2, 0xCF, 0x02, 0xA3, 0x49, 0x59, 0x12, 0x1F, 0x18, 0x90, 0xBC, 0x87}; /* SSH Communications Security QuickSec 1.1.3 */
353 static const guint8 VID_draft_huttunen_ipsec_esp_in_udp_01[VID_LEN] = {0x50, 0x76, 0x0F, 0x62, 0x4C, 0x63, 0xE5, 0xC5, 0x3E, 0xEA, 0x38, 0x6C, 0x68, 0x5C, 0xA0, 0x83}; /* draft-huttunen-ipsec-esp-in-udp-01.txt */
355 static const guint8 VID_draft_stenberg_ipsec_nat_traversal_01[VID_LEN] = {0x27, 0xBA, 0xB5, 0xDC, 0x01, 0xEA, 0x07, 0x60, 0xEA, 0x4E, 0x31, 0x90, 0xAC, 0x27, 0xC0, 0xD0}; /* draft-stenberg-ipsec-nat-traversal-01 */
357 static const guint8 VID_draft_stenberg_ipsec_nat_traversal_02[VID_LEN]= {0x61, 0x05, 0xC4, 0x22, 0xE7, 0x68, 0x47, 0xE4, 0x3F, 0x96, 0x84, 0x80, 0x12, 0x92, 0xAE, 0xCD}; /* draft-stenberg-ipsec-nat-traversal-02 */
359 static const guint8 VID_draft_ietf_ipsec_nat_t_ike_00[VID_LEN]= {0x44, 0x85, 0x15, 0x2D, 0x18, 0xB6, 0xBB, 0xCD, 0x0B, 0xE8, 0xA8, 0x46, 0x95, 0x79, 0xDD, 0xCC}; /* draft-ietf-ipsec-nat-t-ike-00 */
361 static const guint8 VID_draft_ietf_ipsec_nat_t_ike_02a[VID_LEN]= {0xCD, 0x60, 0x46, 0x43, 0x35, 0xDF, 0x21, 0xF8, 0x7C, 0xFD, 0xB2, 0xFC, 0x68, 0xB6, 0xA4, 0x48}; /* draft-ietf-ipsec-nat-t-ike-02 */
363 static const guint8 VID_draft_ietf_ipsec_nat_t_ike_02b[VID_LEN]= {0x90, 0xCB, 0x80, 0x91, 0x3E, 0xBB, 0x69, 0x6E, 0x08, 0x63, 0x81, 0xB5, 0xEC, 0x42, 0x7B, 0x1F}; /* draft-ietf-ipsec-nat-t-ike-02 */
365 static const guint8 VID_draft_beaulieu_ike_xauth_02[VID_LEN]= {0x09, 0x00, 0x26, 0x89, 0xDF, 0xD6, 0xB7, 0x12, 0x80, 0xA2, 0x24, 0xDE, 0xC3, 0x3B, 0x81, 0xE5}; /* draft-beaulieu-ike-xauth-02.txt */
368 static const guint8 VID_draft_ietf_ipsec_dpd_00[VID_LEN]= {0xAF, 0xCA,0xD7, 0x13, 0x68, 0xA1, 0xF1, 0xC9, 0x6B, 0x86, 0x96, 0xFC, 0x77, 0x57, 0x01, 0x00}; /* draft-ietf-ipsec-dpd-00.txt */
370 static const guint8 VID_IKE_CHALLENGE_RESPONSE_1[VID_LEN]= {0xBA, 0x29, 0x04, 0x99, 0xC2, 0x4E, 0x84, 0xE5, 0x3A, 0x1D, 0x83, 0xA0, 0x5E, 0x5F, 0x00, 0xC9}; /* IKE Challenge/Response for Authenticated Cryptographic Keys */
372 static const guint8 VID_IKE_CHALLENGE_RESPONSE_2[VID_LEN]= {0x0D, 0x33, 0x61, 0x1A, 0x5D, 0x52, 0x1B, 0x5E, 0x3C, 0x9C, 0x03, 0xD2, 0xFC, 0x10, 0x7E, 0x12}; /* IKE Challenge/Response for Authenticated Cryptographic Keys */
374 static const guint8 VID_IKE_CHALLENGE_RESPONSE_REV_1[VID_LEN]= {0xAD, 0x32, 0x51, 0x04, 0x2C, 0xDC, 0x46, 0x52, 0xC9, 0xE0, 0x73, 0x4C, 0xE5, 0xDE, 0x4C, 0x7D}; /* IKE Challenge/Response for Authenticated Cryptographic Keys (Revised) */
376 static const guint8 VID_IKE_CHALLENGE_RESPONSE_REV_2[VID_LEN]= {0x01, 0x3F, 0x11, 0x82, 0x3F, 0x96, 0x6F, 0xA9, 0x19, 0x00, 0xF0, 0x24, 0xBA, 0x66, 0xA8, 0x6B}; /* IKE Challenge/Response for Authenticated Cryptographic Keys (Revised) */
378 static const guint8 VID_MS_L2TP_IPSEC_VPN_CLIENT[VID_LEN]= {0x40, 0x48, 0xB7, 0xD5, 0x6E, 0xBC, 0xE8, 0x85, 0x25, 0xE7, 0xDE, 0x7F, 0x00, 0xD6, 0xC2, 0xD3}; /* Microsoft L2TP/IPSec VPN Client */
380 static const guint8 VID_GSS_API_1[VID_LEN]= {0xB4, 0x6D, 0x89, 0x14, 0xF3, 0xAA, 0xA3, 0xF2, 0xFE, 0xDE, 0xB7, 0xC7, 0xDB, 0x29, 0x43, 0xCA}; /* A GSS-API Authentication Method for IKE */
382 static const guint8 VID_GSS_API_2[VID_LEN]= {0xAD, 0x2C, 0x0D, 0xD0, 0xB9, 0xC3, 0x20, 0x83, 0xCC, 0xBA, 0x25, 0xB8, 0x86, 0x1E, 0xC4, 0x55}; /* A GSS-API Authentication Method for IKE */
384 static const guint8 VID_GSSAPI[VID_LEN]= {0x62, 0x1B, 0x04, 0xBB, 0x09, 0x88, 0x2A, 0xC1, 0xE1, 0x59, 0x35, 0xFE, 0xFA, 0x24, 0xAE, 0xEE}; /* GSSAPI */
386 static const guint8 VID_MS_NT5_ISAKMPOAKLEY[VID_LEN]= {0x1E, 0x2B, 0x51, 0x69, 0x05, 0x99, 0x1C, 0x7D, 0x7C, 0x96, 0xFC, 0xBF, 0xB5, 0x87, 0xE4, 0x61}; /* MS NT5 ISAKMPOAKLEY */
388 static const guint8 VID_CISCO_UNITY[VID_LEN]= {0x12, 0xF5, 0xF2, 0x8C, 0x45, 0x71, 0x68, 0xA9, 0x70, 0x2D, 0x9F, 0xE2, 0x74, 0xCC, 0x02, 0xD4}; /* CISCO-UNITY */
391 static const guint8 VID_draft_ietf_ipsec_antireplay_00[VID_LEN_8]= {0x32, 0x5D, 0xF2, 0x9A, 0x23, 0x19, 0xF2, 0xDD}; /* draft-ietf-ipsec-antireplay-00.txt */
393 static const guint8 VID_draft_ietf_ipsec_heartbeats_00[VID_LEN_8]= {0x8D, 0xB7, 0xA4, 0x18, 0x11, 0x22, 0x16, 0x60}; /* draft-ietf-ipsec-heartbeats-00.txt */
396 * Seen in Netscreen. Suppose to be ASCII HeartBeat_Notify - but I don't know the rest yet. I suspect it then proceeds with
397 * 8k10, which means every 8K (?), and version 1.0 of the protocol (?). I won't add it to the code, until I know what it really
398 * means. ykaul-at-netvision.net.il
400 static const guint8 VID_HeartBeat_Notify[VID_LEN] = {0x48, 0x65, 0x61, 0x72, 0x74, 0x42, 0x65, 0x61, 0x74, 0x5f, 0x4e, 0x6f, 0x74, 0x69, 0x66, 0x79};
403 dissect_payloads(tvbuff_t *tvb, proto_tree *tree, guint8 initial_payload,
404 int offset, int length)
406 guint8 payload, next_payload;
407 guint16 payload_length;
410 for (payload = initial_payload; length != 0; payload = next_payload) {
411 if (payload == LOAD_TYPE_NONE) {
413 * What? There's more stuff in this chunk of data, but the
414 * previous payload had a "next payload" type of None?
416 proto_tree_add_text(tree, tvb, offset, length,
418 tvb_bytes_to_str(tvb, offset, length));
421 ntree = dissect_payload_header(tvb, offset, length, payload,
422 &next_payload, &payload_length, tree);
425 if (payload_length >= 4) { /* XXX = > 4? */
426 if (payload < NUM_LOAD_TYPES && strfuncs[payload].func != NULL) {
427 (*strfuncs[payload].func)(tvb, offset + 4, payload_length - 4, ntree,
431 proto_tree_add_text(ntree, tvb, offset + 4, payload_length - 4,
436 proto_tree_add_text(ntree, tvb, offset + 4, 0,
437 "Payload (bogus, length is %u, must be at least 4)",
441 offset += payload_length;
442 length -= payload_length;
447 dissect_isakmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
450 struct isakmp_hdr hdr;
452 proto_tree * isakmp_tree = NULL;
455 if (check_col(pinfo->cinfo, COL_PROTOCOL))
456 col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISAKMP");
457 if (check_col(pinfo->cinfo, COL_INFO))
458 col_clear(pinfo->cinfo, COL_INFO);
461 ti = proto_tree_add_item(tree, proto_isakmp, tvb, offset, -1, FALSE);
462 isakmp_tree = proto_item_add_subtree(ti, ett_isakmp);
465 hdr.length = tvb_get_ntohl(tvb, offset + sizeof(hdr) - sizeof(hdr.length));
466 hdr.exch_type = tvb_get_guint8(tvb, sizeof(hdr.icookie) + sizeof(hdr.rcookie) + sizeof(hdr.next_payload) + sizeof(hdr.version));
467 if (check_col(pinfo->cinfo, COL_INFO))
468 col_add_str(pinfo->cinfo, COL_INFO, exchtype2str(hdr.exch_type));
471 tvb_memcpy(tvb, (guint8 *)&hdr.icookie, offset, sizeof(hdr.icookie));
472 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.icookie),
473 "Initiator cookie: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.icookie)));
474 offset += sizeof(hdr.icookie);
476 tvb_memcpy(tvb, (guint8 *)&hdr.rcookie, offset, sizeof(hdr.rcookie));
477 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.rcookie),
478 "Responder cookie: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.rcookie)));
479 offset += sizeof(hdr.rcookie);
481 hdr.next_payload = tvb_get_guint8(tvb, offset);
482 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.next_payload),
483 "Next payload: %s (%u)",
484 payloadtype2str(hdr.next_payload), hdr.next_payload);
485 offset += sizeof(hdr.next_payload);
487 hdr.version = tvb_get_guint8(tvb, offset);
488 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.version),
490 hi_nibble(hdr.version), lo_nibble(hdr.version));
491 offset += sizeof(hdr.version);
493 hdr.exch_type = tvb_get_guint8(tvb, offset);
494 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.exch_type),
495 "Exchange type: %s (%u)",
496 exchtype2str(hdr.exch_type), hdr.exch_type);
497 offset += sizeof(hdr.exch_type);
503 hdr.flags = tvb_get_guint8(tvb, offset);
504 fti = proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.flags), "Flags");
505 ftree = proto_item_add_subtree(fti, ett_isakmp_flags);
507 proto_tree_add_text(ftree, tvb, offset, 1, "%s",
508 decode_boolean_bitfield(hdr.flags, E_FLAG, sizeof(hdr.flags)*8,
509 "Encryption", "No encryption"));
510 proto_tree_add_text(ftree, tvb, offset, 1, "%s",
511 decode_boolean_bitfield(hdr.flags, C_FLAG, sizeof(hdr.flags)*8,
512 "Commit", "No commit"));
513 proto_tree_add_text(ftree, tvb, offset, 1, "%s",
514 decode_boolean_bitfield(hdr.flags, A_FLAG, sizeof(hdr.flags)*8,
515 "Authentication", "No authentication"));
516 offset += sizeof(hdr.flags);
519 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.message_id),
520 "Message ID: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.message_id)));
521 offset += sizeof(hdr.message_id);
523 proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.length),
524 "Length: %u", hdr.length);
525 offset += sizeof(hdr.length);
527 len = hdr.length - sizeof(hdr);
529 if (hdr.flags & E_FLAG) {
530 if (len && isakmp_tree) {
531 proto_tree_add_text(isakmp_tree, tvb, offset, len,
532 "Encrypted payload (%d byte%s)",
533 len, plurality(len, "", "s"));
536 dissect_payloads(tvb, isakmp_tree, hdr.next_payload, offset, len);
541 dissect_payload_header(tvbuff_t *tvb, int offset, int length, guint8 payload,
542 guint8 *next_payload_p, guint16 *payload_length_p, proto_tree *tree)
545 guint16 payload_length;
550 proto_tree_add_text(tree, tvb, offset, length,
551 "Not enough room in payload for all transforms");
554 next_payload = tvb_get_guint8(tvb, offset);
555 payload_length = tvb_get_ntohs(tvb, offset + 2);
557 ti = proto_tree_add_text(tree, tvb, offset, payload_length,
558 "%s payload", loadtype2str(payload));
559 ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
561 proto_tree_add_text(ntree, tvb, offset, 1,
562 "Next payload: %s (%u)",
563 payloadtype2str(next_payload), next_payload);
564 proto_tree_add_text(ntree, tvb, offset+2, 2, "Length: %u", payload_length);
566 *next_payload_p = next_payload;
567 *payload_length_p = payload_length;
572 dissect_sa(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
579 proto_tree_add_text(tree, tvb, offset, length,
580 "DOI %s (length is %u, should be >= 4)",
581 tvb_bytes_to_str(tvb, offset, length), length);
584 doi = tvb_get_ntohl(tvb, offset);
585 proto_tree_add_text(tree, tvb, offset, 4,
586 "Domain of interpretation: %s (%u)",
587 doitype2str(doi), doi);
594 proto_tree_add_text(tree, tvb, offset, length,
595 "Situation: %s (length is %u, should be >= 4)",
596 tvb_bytes_to_str(tvb, offset, length), length);
599 situation = tvb_get_ntohl(tvb, offset);
600 proto_tree_add_text(tree, tvb, offset, 4,
601 "Situation: %s (%u)",
602 situation2str(situation), situation);
606 dissect_payloads(tvb, tree, LOAD_TYPE_PROPOSAL, offset, length);
609 proto_tree_add_text(tree, tvb, offset, length,
611 tvb_bytes_to_str(tvb, offset, length));
616 dissect_proposal(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
621 guint8 num_transforms;
623 guint16 payload_length;
627 proposal_num = tvb_get_guint8(tvb, offset);
629 proto_item_append_text(tree, " # %d",proposal_num);
630 proto_tree_add_text(tree, tvb, offset, 1,
631 "Proposal number: %u", proposal_num);
635 protocol_id = tvb_get_guint8(tvb, offset);
636 proto_tree_add_text(tree, tvb, offset, 1,
637 "Protocol ID: %s (%u)",
638 proto2str(protocol_id), protocol_id);
642 spi_size = tvb_get_guint8(tvb, offset);
643 proto_tree_add_text(tree, tvb, offset, 1,
644 "SPI size: %u", spi_size);
648 num_transforms = tvb_get_guint8(tvb, offset);
649 proto_tree_add_text(tree, tvb, offset, 1,
650 "Number of transforms: %u", num_transforms);
655 proto_tree_add_text(tree, tvb, offset, spi_size, "SPI: %s",
656 tvb_bytes_to_str(tvb, offset, spi_size));
661 while (num_transforms > 0) {
662 ntree = dissect_payload_header(tvb, offset, length, LOAD_TYPE_TRANSFORM,
663 &next_payload, &payload_length, tree);
666 if (length < payload_length) {
667 proto_tree_add_text(tree, tvb, offset + 4, length,
668 "Not enough room in payload for all transforms");
671 if (payload_length >= 4)
672 dissect_transform(tvb, offset + 4, payload_length - 4, ntree, protocol_id);
674 proto_tree_add_text(ntree, tvb, offset + 4, payload_length - 4, "Payload");
675 offset += payload_length;
676 length -= payload_length;
682 dissect_transform(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
686 guint8 transform_num;
688 transform_num = tvb_get_guint8(tvb, offset);
689 proto_item_append_text(tree," # %d",transform_num);
690 proto_tree_add_text(tree, tvb, offset, 1,
691 "Transform number: %u", transform_num);
695 transform_id = tvb_get_guint8(tvb, offset);
696 switch (protocol_id) {
698 proto_tree_add_text(tree, tvb, offset, 1,
699 "Transform ID: %u", transform_id);
702 proto_tree_add_text(tree, tvb, offset, 1,
703 "Transform ID: %s (%u)",
704 trans2str(transform_id), transform_id);
707 proto_tree_add_text(tree, tvb, offset, 1,
708 "Transform ID: %s (%u)",
709 ah_trans2str(transform_id), transform_id);
712 proto_tree_add_text(tree, tvb, offset, 1,
713 "Transform ID: %s (%u)",
714 esp_trans2str(transform_id), transform_id);
717 proto_tree_add_text(tree, tvb, offset, 1,
718 "Transform ID: %s (%u)",
719 ipcomp_trans2str(transform_id), transform_id);
728 guint16 aft = tvb_get_ntohs(tvb, offset);
729 guint16 type = aft & 0x7fff;
734 if (protocol_id == 1 && transform_id == 1) {
736 str = p1_atttype2str(type);
739 str = atttype2str(type);
743 val = tvb_get_ntohs(tvb, offset + 2);
744 proto_tree_add_text(tree, tvb, offset, 4,
747 value2str(ike_phase1, type, val), val);
752 len = tvb_get_ntohs(tvb, offset + 2);
754 if (!get_num(tvb, offset + 4, len, &val)) {
755 proto_tree_add_text(tree, tvb, offset, pack_len,
756 "%s (%u): <too big (%u bytes)>",
759 proto_tree_add_text(tree, tvb, offset, pack_len,
762 value2str(ike_phase1, type, val), val);
771 dissect_key_exch(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
774 proto_tree_add_text(tree, tvb, offset, length, "Key Exchange Data");
778 dissect_id(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
785 id_type = tvb_get_guint8(tvb, offset);
786 proto_tree_add_text(tree, tvb, offset, 1,
787 "ID type: %s (%u)", id2str(id_type), id_type);
791 protocol_id = tvb_get_guint8(tvb, offset);
792 if (protocol_id == 0) {
793 proto_tree_add_text(tree, tvb, offset, 1,
794 "Protocol ID: Unused");
796 proto_tree_add_text(tree, tvb, offset, 1,
797 "Protocol ID: %s (%u)",
798 ipprotostr(protocol_id), protocol_id);
803 port = tvb_get_ntohs(tvb, offset);
805 proto_tree_add_text(tree, tvb, offset, 2, "Port: Unused");
807 proto_tree_add_text(tree, tvb, offset, 2, "Port: %u", port);
813 proto_tree_add_text(tree, tvb, offset, length,
814 "Identification data: %s",
815 ip_to_str(tvb_get_ptr(tvb, offset, 4)));
819 proto_tree_add_text(tree, tvb, offset, length,
820 "Identification data: %.*s", length,
821 tvb_get_ptr(tvb, offset, length));
824 proto_tree_add_text(tree, tvb, offset, length,
825 "Identification data: %s/%s",
826 ip_to_str(tvb_get_ptr(tvb, offset, 4)),
827 ip_to_str(tvb_get_ptr(tvb, offset+4, 4)));
830 proto_tree_add_text(tree, tvb, offset, length, "Identification Data");
836 dissect_cert(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
841 cert_enc = tvb_get_guint8(tvb, offset);
842 proto_tree_add_text(tree, tvb, offset, 1,
843 "Certificate encoding: %u - %s",
844 cert_enc, certtype2str(cert_enc));
848 proto_tree_add_text(tree, tvb, offset, length, "Certificate Data");
852 dissect_certreq(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
857 cert_type = tvb_get_guint8(tvb, offset);
858 proto_tree_add_text(tree, tvb, offset, 1,
859 "Certificate type: %u - %s",
860 cert_type, certtype2str(cert_type));
864 proto_tree_add_text(tree, tvb, offset, length, "Certificate Authority");
868 dissect_hash(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
871 proto_tree_add_text(tree, tvb, offset, length, "Hash Data");
875 dissect_sig(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
878 proto_tree_add_text(tree, tvb, offset, length, "Signature Data");
882 dissect_nonce(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
885 proto_tree_add_text(tree, tvb, offset, length, "Nonce Data");
889 dissect_notif(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
897 doi = tvb_get_ntohl(tvb, offset);
898 proto_tree_add_text(tree, tvb, offset, 4,
899 "Domain of Interpretation: %s (%u)",
900 doitype2str(doi), doi);
904 protocol_id = tvb_get_guint8(tvb, offset);
905 proto_tree_add_text(tree, tvb, offset, 1,
906 "Protocol ID: %s (%u)",
907 proto2str(protocol_id), protocol_id);
911 spi_size = tvb_get_guint8(tvb, offset);
912 proto_tree_add_text(tree, tvb, offset, 1,
913 "SPI size: %u", spi_size);
917 msgtype = tvb_get_ntohs(tvb, offset);
918 proto_tree_add_text(tree, tvb, offset, 2,
919 "Message type: %s (%u)", msgtype2str(msgtype), msgtype);
924 proto_tree_add_text(tree, tvb, offset, spi_size, "Security Parameter Index");
930 proto_tree_add_text(tree, tvb, offset, length, "Notification Data");
934 dissect_delete(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
943 doi = tvb_get_ntohl(tvb, offset);
944 proto_tree_add_text(tree, tvb, offset, 4,
945 "Domain of Interpretation: %s (%u)",
946 doitype2str(doi), doi);
950 protocol_id = tvb_get_guint8(tvb, offset);
951 proto_tree_add_text(tree, tvb, offset, 1,
952 "Protocol ID: %s (%u)",
953 proto2str(protocol_id), protocol_id);
957 spi_size = tvb_get_guint8(tvb, offset);
958 proto_tree_add_text(tree, tvb, offset, 1,
959 "SPI size: %u", spi_size);
963 num_spis = tvb_get_ntohs(tvb, offset);
964 proto_tree_add_text(tree, tvb, offset, 2,
965 "Number of SPIs: %u", num_spis);
969 for (i = 0; i < num_spis; ++i) {
970 if (length < spi_size) {
971 proto_tree_add_text(tree, tvb, offset, length,
972 "Not enough room in payload for all SPI's");
975 proto_tree_add_text(tree, tvb, offset, spi_size,
983 dissect_vid(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
986 guint32 CPproduct, CPversion;
990 pVID = tvb_get_ptr(tvb, offset, length);
991 pt = proto_tree_add_text(tree, tvb, offset, length, "Vendor ID: ");
992 if (memcmp(pVID, VID_MS_W2K_WXP, isakmp_min(VID_MS_LEN, length)) == 0)
993 proto_item_append_text(pt, "Microsoft Win2K/WinXP");
995 if (memcmp(pVID, VID_CP, isakmp_min(VID_CP_LEN, length)) == 0)
997 proto_item_append_text(pt, "Check Point");
998 offset += VID_CP_LEN;
999 CPproduct = tvb_get_ntohl(tvb, offset);
1000 ntree = proto_item_add_subtree(pt, ett_isakmp_payload);
1001 pt = proto_tree_add_text(ntree, tvb, offset, sizeof(CPproduct), "Check Point Product: ");
1002 switch (CPproduct) {
1003 case 1: proto_item_append_text(pt, "VPN-1");
1005 case 2: proto_item_append_text(pt, "SecuRemote/SecureClient");
1007 default: proto_item_append_text(pt, "Unknown CP product!");
1010 offset += sizeof(CPproduct);
1011 CPversion = tvb_get_ntohl(tvb, offset);
1012 pt = proto_tree_add_text(ntree, tvb, offset, length, "Version: ");
1013 switch (CPversion) {
1014 case 2: proto_item_append_text(pt, "4.1");
1016 case 3: proto_item_append_text(pt, "4.1 SP-1");
1018 case 4002: proto_item_append_text(pt, "4.1 (SP-2 or above)");
1020 case 5000: proto_item_append_text(pt, "NG");
1022 case 5001: proto_item_append_text(pt, "NG Feature Pack 1");
1024 case 5002: proto_item_append_text(pt, "NG Feature Pack 2");
1026 case 5003: proto_item_append_text(pt, "NG Feature Pack 3");
1028 default: proto_item_append_text(pt, " Uknown CP version!");
1033 if (memcmp(pVID, VID_CYBERGUARD, isakmp_min(VID_LEN, length)) == 0)
1034 proto_item_append_text(pt, "Cyber Guard");
1036 if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_03, isakmp_min(VID_LEN, length)) == 0)
1037 proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-03");
1039 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_0, isakmp_min(VID_LEN, length)) == 0)
1040 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.0");
1042 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_1, isakmp_min(VID_LEN, length)) == 0)
1043 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.1");
1045 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_2, isakmp_min(VID_LEN, length)) == 0)
1046 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.2");
1048 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_2_1, isakmp_min(VID_LEN, length)) == 0)
1049 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.2.1");
1051 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_2_2, isakmp_min(VID_LEN, length)) == 0)
1052 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.2.2");
1054 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_0_0, isakmp_min(VID_LEN, length)) == 0)
1055 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.0.0");
1057 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_0, isakmp_min(VID_LEN, length)) == 0)
1058 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.0");
1060 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_1, isakmp_min(VID_LEN, length)) == 0)
1061 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.1");
1063 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_2, isakmp_min(VID_LEN, length)) == 0)
1064 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.2");
1066 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_3_0_0, isakmp_min(VID_LEN, length)) == 0)
1067 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 3.0.0");
1069 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_3_0_1, isakmp_min(VID_LEN, length)) == 0)
1070 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 3.0.1");
1072 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_0_0, isakmp_min(VID_LEN, length)) == 0)
1073 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.0.0");
1075 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_0_1, isakmp_min(VID_LEN, length)) == 0)
1076 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.0.1");
1078 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_1_0, isakmp_min(VID_LEN, length)) == 0)
1079 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.1.0");
1081 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_1_1, isakmp_min(VID_LEN, length)) == 0)
1082 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.1.1");
1084 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_0, isakmp_min(VID_LEN, length)) == 0)
1085 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.0");
1087 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_0_0, isakmp_min(VID_LEN, length)) == 0)
1088 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.0.0");
1090 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_1_0, isakmp_min(VID_LEN, length)) == 0)
1091 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.1.0");
1093 if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_1_1, isakmp_min(VID_LEN, length)) == 0)
1094 proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.1.1");
1096 if (memcmp(pVID, VID_SSH_SENTINEL, isakmp_min(VID_LEN, length)) == 0)
1097 proto_item_append_text(pt, "SSH Sentinel");
1099 if (memcmp(pVID, VID_SSH_SENTINEL_1_1, isakmp_min(VID_LEN, length)) == 0)
1100 proto_item_append_text(pt, "SSH Sentinel 1.1");
1102 if (memcmp(pVID, VID_SSH_SENTINEL_1_2, isakmp_min(VID_LEN, length)) == 0)
1103 proto_item_append_text(pt, "SSH Sentinel 1.2");
1105 if (memcmp(pVID, VID_SSH_SENTINEL_1_3, isakmp_min(VID_LEN, length)) == 0)
1106 proto_item_append_text(pt, "SSH Sentinel 1.3");
1108 if (memcmp(pVID, VID_SSH_QUICKSEC_0_9_0, isakmp_min(VID_LEN, length)) == 0)
1109 proto_item_append_text(pt, "SSH Communications Security QuickSec 0.9.0");
1111 if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_0, isakmp_min(VID_LEN, length)) == 0)
1112 proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.0");
1114 if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_1, isakmp_min(VID_LEN, length)) == 0)
1115 proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.1");
1117 if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_2, isakmp_min(VID_LEN, length)) == 0)
1118 proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.2");
1120 if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_3, isakmp_min(VID_LEN, length)) == 0)
1121 proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.3");
1123 if (memcmp(pVID, VID_draft_huttunen_ipsec_esp_in_udp_01, isakmp_min(VID_LEN, length)) == 0)
1124 proto_item_append_text(pt, "draft-huttunen-ipsec-esp-in-udp-01.txt");
1126 if (memcmp(pVID, VID_draft_stenberg_ipsec_nat_traversal_01, isakmp_min(VID_LEN, length)) == 0)
1127 proto_item_append_text(pt, "draft-stenberg-ipsec-nat-traversal-01");
1129 if (memcmp(pVID, VID_draft_stenberg_ipsec_nat_traversal_02, isakmp_min(VID_LEN, length)) == 0)
1130 proto_item_append_text(pt, "draft-stenberg-ipsec-nat-traversal-02");
1132 if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_00, isakmp_min(VID_LEN, length)) == 0)
1133 proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-00");
1135 if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_02a, isakmp_min(VID_LEN, length)) == 0)
1136 proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-02");
1138 if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_02b, isakmp_min(VID_LEN, length)) == 0)
1139 proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-02");
1141 if (memcmp(pVID, VID_draft_beaulieu_ike_xauth_02, isakmp_min(VID_LEN, length)) == 0)
1142 proto_item_append_text(pt, "draft-beaulieu-ike-xauth-02.txt");
1144 if (memcmp(pVID, VID_draft_ietf_ipsec_dpd_00, isakmp_min(VID_LEN, length)) == 0)
1145 proto_item_append_text(pt, "draft-ietf-ipsec-dpd-00.txt");
1147 if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_1, isakmp_min(VID_LEN, length)) == 0)
1148 proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys");
1150 if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_2, isakmp_min(VID_LEN, length)) == 0)
1151 proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys");
1153 if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_REV_1, isakmp_min(VID_LEN, length)) == 0)
1154 proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys (Revised)");
1156 if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_REV_2, isakmp_min(VID_LEN, length)) == 0)
1157 proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys (Revised)");
1159 if (memcmp(pVID, VID_MS_L2TP_IPSEC_VPN_CLIENT, isakmp_min(VID_LEN, length)) == 0)
1160 proto_item_append_text(pt, "Microsoft L2TP/IPSec VPN Client");
1162 if (memcmp(pVID, VID_GSS_API_1, isakmp_min(VID_LEN, length)) == 0)
1163 proto_item_append_text(pt, "A GSS-API Authentication Method for IKE");
1165 if (memcmp(pVID, VID_GSS_API_2, isakmp_min(VID_LEN, length)) == 0)
1166 proto_item_append_text(pt, "A GSS-API Authentication Method for IKE");
1168 if (memcmp(pVID, VID_GSSAPI, isakmp_min(VID_LEN, length)) == 0)
1169 proto_item_append_text(pt, "GSSAPI");
1171 if (memcmp(pVID, VID_MS_NT5_ISAKMPOAKLEY, isakmp_min(VID_LEN, length)) == 0)
1172 proto_item_append_text(pt, "MS NT5 ISAKMPOAKLEY");
1174 if (memcmp(pVID, VID_CISCO_UNITY, isakmp_min(VID_LEN, length)) == 0)
1175 proto_item_append_text(pt, "CISCO-UNITY");
1177 if (memcmp(pVID, VID_draft_ietf_ipsec_antireplay_00, isakmp_min(VID_LEN_8, length)) == 0)
1178 proto_item_append_text(pt, "draft-ietf-ipsec-antireplay-00.txt");
1180 if (memcmp(pVID, VID_draft_ietf_ipsec_heartbeats_00, isakmp_min(VID_LEN_8, length)) == 0)
1181 proto_item_append_text(pt, "draft-ietf-ipsec-heartbeats-00.txt");
1183 proto_item_append_text(pt, "unknown vendor ID: 0x%s",tvb_bytes_to_str(tvb, offset, length));
1187 dissect_config(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
1192 type = tvb_get_guint8(tvb, offset);
1193 proto_tree_add_text(tree, tvb, offset, 1,
1194 "Type %s (%u)",attrtype2str(type),type);
1199 proto_tree_add_text(tree, tvb, offset, 2,
1200 "Identifier: %u", tvb_get_ntohs(tvb, offset));
1205 guint16 aft = tvb_get_ntohs(tvb, offset);
1206 guint16 type = aft & 0x7fff;
1212 val = tvb_get_ntohs(tvb, offset + 2);
1213 proto_tree_add_text(tree, tvb, offset, 4,
1214 "%s (%u)", cfgattrident2str(type), val);
1219 len = tvb_get_ntohs(tvb, offset + 2);
1221 if (!get_num(tvb, offset + 4, len, &val)) {
1222 proto_tree_add_text(tree, tvb, offset, pack_len,
1223 "%s: <too big (%u bytes)>",
1224 cfgattrident2str(type), len);
1226 proto_tree_add_text(tree, tvb, offset, 4,
1227 "%s (%ue)", cfgattrident2str(type),
1237 dissect_nat_discovery(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
1240 proto_tree_add_text(tree, tvb, offset, length,
1241 "Hash of address and port: %s",
1242 tvb_bytes_to_str(tvb, offset, length));
1246 dissect_nat_original_address(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
1251 struct e_in6_addr addr_ipv6;
1253 id_type = tvb_get_guint8(tvb, offset);
1254 proto_tree_add_text(tree, tvb, offset, 1,
1255 "ID type: %s (%u)", id2str(id_type), id_type);
1259 offset += 3; /* reserved */
1264 case 1: /* ID_IPV4_ADDR */
1266 tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset, length);
1267 proto_tree_add_text(tree, tvb, offset, length,
1268 "Original address: %s",
1269 ip_to_str((guint8 *)&addr_ipv4));
1271 proto_tree_add_text(tree, tvb, offset, length,
1272 "Original address: bad length, should be 4, is %u",
1277 case 5: /* ID_IPV6_ADDR */
1279 tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset, length);
1280 proto_tree_add_text(tree, tvb, offset, length,
1281 "Original address: %s",
1282 ip6_to_str(&addr_ipv6));
1284 proto_tree_add_text(tree, tvb, offset, length,
1285 "Original address: bad length, should be 16, is %u",
1291 proto_tree_add_text(tree, tvb, offset, length,
1292 "Original address: bad address type");
1298 payloadtype2str(guint8 type) {
1300 if (type < NUM_LOAD_TYPES)
1301 return strfuncs[type].str;
1304 return "Private USE";
1308 exchtype2str(guint8 type) {
1310 #define NUM_EXCHSTRS 7
1311 static const char * exchstrs[NUM_EXCHSTRS] = {
1314 "Identity Protection (Main Mode)",
1315 "Authentication Only",
1318 "Transaction (Config Mode)"
1321 if (type < NUM_EXCHSTRS) return exchstrs[type];
1322 if (type < 32) return "ISAKMP Future Use";
1325 return "Quick Mode";
1327 return "New Group Mode";
1330 return "DOI Specific Use";
1331 return "Private Use";
1335 doitype2str(guint32 type) {
1336 if (type == 1) return "IPSEC";
1337 return "Unknown DOI Type";
1341 msgtype2str(guint16 type) {
1343 #define NUM_PREDEFINED 31
1344 static const char *msgs[NUM_PREDEFINED] = {
1346 "INVALID-PAYLOAD-TYPE",
1347 "DOI-NOT-SUPPORTED",
1348 "SITUATION-NOT-SUPPORTED",
1350 "INVALID-MAJOR-VERSION",
1351 "INVALID-MINOR-VERSION",
1352 "INVALID-EXCHANGE-TYPE",
1354 "INVALID-MESSAGE-ID",
1355 "INVALID-PROTOCOL-ID",
1357 "INVALID-TRANSFORM-ID",
1358 "ATTRIBUTES-NOT-SUPPORTED",
1359 "NO-PROPOSAL-CHOSEN",
1360 "BAD-PROPOSAL-SYNTAX",
1361 "PAYLOAD-MALFORMED",
1362 "INVALID-KEY-INFORMATION",
1363 "INVALID-ID-INFORMATION",
1364 "INVALID-CERT-ENCODING",
1365 "INVALID-CERTIFICATE",
1366 "CERT-TYPE-UNSUPPORTED",
1367 "INVALID-CERT-AUTHORITY",
1368 "INVALID-HASH-INFORMATION",
1369 "AUTHENTICATION-FAILED",
1370 "INVALID-SIGNATURE",
1371 "ADDRESS-NOTIFICATION",
1372 "NOTIFY-SA-LIFETIME",
1373 "CERTIFICATE-UNAVAILABLE",
1374 "UNSUPPORTED-EXCHANGE-TYPE",
1375 "UNEQUAL-PAYLOAD-LENGTHS"
1378 if (type < NUM_PREDEFINED) return msgs[type];
1379 if (type < 8192) return "RESERVED (Future Use)";
1380 if (type < 16384) return "Private Use";
1381 if (type < 16385) return "CONNECTED";
1382 if (type < 24576) return "RESERVED (Future Use) - status";
1383 if (type < 24577) return "RESPONDER-LIFETIME";
1384 if (type < 24578) return "REPLAY-STATUS";
1385 if (type < 24579) return "INITIAL-CONTACT";
1386 if (type < 32768) return "DOI-specific codes";
1387 if (type < 40960) return "Private Use - status";
1388 if (type < 65535) return "RESERVED (Future Use) - status (2)";
1390 return "Huh? You should never see this! Shame on you!";
1394 situation2str(guint32 type) {
1396 #define SIT_MSG_NUM 1024
1397 #define SIT_IDENTITY 0x01
1398 #define SIT_SECRECY 0x02
1399 #define SIT_INTEGRITY 0x04
1401 static char msg[SIT_MSG_NUM];
1406 if (type & SIT_IDENTITY) {
1407 ret = snprintf(msg, SIT_MSG_NUM-n, "%sIDENTITY", sep);
1408 if (ret == -1 || ret >= SIT_MSG_NUM-n) {
1410 msg[SIT_MSG_NUM-1] = '\0';
1416 if (type & SIT_SECRECY) {
1417 if (n >= SIT_MSG_NUM) {
1421 ret = snprintf(msg, SIT_MSG_NUM-n, "%sSECRECY", sep);
1422 if (ret == -1 || ret >= SIT_MSG_NUM-n) {
1424 msg[SIT_MSG_NUM-1] = '\0';
1430 if (type & SIT_INTEGRITY) {
1431 if (n >= SIT_MSG_NUM) {
1435 ret = snprintf(msg, SIT_MSG_NUM-n, "%sINTEGRITY", sep);
1436 if (ret == -1 || ret >= SIT_MSG_NUM-n) {
1438 msg[SIT_MSG_NUM-1] = '\0';
1449 value2str(int ike_p1, guint16 att_type, guint16 value) {
1451 if (value == 0) return "RESERVED";
1457 case 0: return "RESERVED";
1458 case 1: return "Seconds";
1459 case 2: return "Kilobytes";
1460 default: return "UNKNOWN-SA-VALUE";
1463 return "Duration-Value";
1465 return "Group-Value";
1468 case 0: return "RESERVED";
1469 case 1: return "Tunnel";
1470 case 2: return "Transport";
1471 case 3: return "UDP-Encapsulated-Tunnel"; /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
1472 case 4: return "UDP-Encapsulated-Transport"; /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
1473 case 61440: return "Check Point IPSec UDP Encapsulation";
1474 case 61443: return "UDP-Encapsulated-Tunnel (draft)";
1475 case 61444: return "UDP-Encapsulated-Transport (draft)";
1476 default: return "UNKNOWN-ENCAPSULATION-VALUE";
1480 case 0: return "RESERVED";
1481 case 1: return "HMAC-MD5";
1482 case 2: return "HMAC-SHA";
1483 case 3: return "DES-MAC";
1484 case 4: return "KPDK";
1485 case 5: return "HMAC-SHA2-256";
1486 case 6: return "HMAC-SHA2-384";
1487 case 7: return "HMAC-SHA2-512";
1488 default: return "UNKNOWN-AUTHENTICATION-VALUE";
1491 return "Key-Length";
1493 return "Key-Rounds";
1495 return "Compress-Dictionary-size";
1497 return "Compress Private Algorithm";
1498 default: return "UNKNOWN-ATTRIBUTE-TYPE";
1505 case 1: return "DES-CBC";
1506 case 2: return "IDEA-CBC";
1507 case 3: return "BLOWFISH-CBC";
1508 case 4: return "RC5-R16-B64-CBC";
1509 case 5: return "3DES-CBC";
1510 case 6: return "CAST-CBC";
1511 case 7: return "AES-CBC";
1512 default: return "UNKNOWN-ENCRYPTION-ALG";
1516 case 1: return "MD5";
1517 case 2: return "SHA";
1518 case 3: return "TIGER";
1519 case 4: return "SHA2-256";
1520 case 5: return "SHA2-384";
1521 case 6: return "SHA2-512";
1522 default: return "UNKNOWN-HASH-ALG";
1526 case 1: return "PSK";
1527 case 2: return "DSS-SIG";
1528 case 3: return "RSA-SIG";
1529 case 4: return "RSA-ENC";
1530 case 5: return "RSA-Revised-ENC";
1531 case 6: return "Encryption with El-Gamal";
1532 case 7: return "Revised encryption with El-Gamal";
1533 case 8: return "ECDSA signatures";
1534 case 9: return "AES-XCBC-MAC";
1535 case 64221: return "HybridInitRSA";
1536 case 64222: return "HybridRespRSA";
1537 case 64223: return "HybridInitDSS";
1538 case 64224: return "HybridRespDSS";
1539 case 65001: return "XAUTHInitPreShared";
1540 case 65002: return "XAUTHRespPreShared";
1541 case 65003: return "XAUTHInitDSS";
1542 case 65004: return "XAUTHRespDSS";
1543 case 65005: return "XAUTHInitRSA";
1544 case 65006: return "XAUTHRespRSA";
1545 case 65007: return "XAUTHInitRSAEncryption";
1546 case 65008: return "XAUTHRespRSAEncryption";
1547 case 65009: return "XAUTHInitRSARevisedEncryption";
1548 case 65010: return "XAUTHRespRSARevisedEncryption";
1549 default: return "UNKNOWN-AUTH-METHOD";
1551 case 4: return grpdesc2str(value);
1558 return "Group-Value";
1561 case 1: return "MODP";
1562 case 2: return "ECP";
1563 case 3: return "EC2N";
1564 default: return "UNKNOWN-GROUPT-TYPE";
1568 case 1: return "Seconds";
1569 case 2: return "Kilobytes";
1570 default: return "UNKNOWN-SA-VALUE";
1573 return "Duration-Value";
1577 return "Key-Length";
1579 return "Field-Size";
1580 default: return "UNKNOWN-ATTRIBUTE-TYPE";
1586 attrtype2str(guint8 type) {
1588 case 0: return "Reserved";
1589 case 1: return "ISAKMP_CFG_REQUEST";
1590 case 2: return "ISAKMP_CFG_REPLY";
1591 case 3: return "ISAKMP_CFG_SET";
1592 case 4: return "ISAKMP_CFG_ACK";
1595 return "Future use";
1596 return "Private use";
1600 cfgattrident2str(guint16 ident) {
1601 #define NUM_ATTR_DEFINED 12
1602 static const char *msgs[NUM_PREDEFINED] = {
1604 "INTERNAL_IP4_ADDRESS",
1605 "INTERNAL_IP4_NETMASK",
1607 "INTERNAL_IP4_NBNS",
1608 "INTERNAL_ADDRESS_EXPIREY",
1609 "INTERNAL_IP4_DHCP",
1610 "APPLICATION_VERSION"
1611 "INTERNAL_IP6_ADDRESS",
1612 "INTERNAL_IP6_NETMASK",
1614 "INTERNAL_IP6_NBNS",
1615 "INTERNAL_IP6_DHCP",
1617 if(ident < NUM_ATTR_DEFINED)
1620 return "Future use";
1622 case 16520: return "XAUTH_TYPE";
1623 case 16521: return "XAUTH_USER_NAME";
1624 case 16522: return "XAUTH_USER_PASSWORD";
1625 case 16523: return "XAUTH_PASSCODE";
1626 case 16524: return "XAUTH_MESSAGE";
1627 case 16525: return "XAUTH_CHALLANGE";
1628 case 16526: return "XAUTH_DOMAIN";
1629 case 16527: return "XAUTH_STATUS";
1630 case 16528: return "XAUTH_NEXT_PIN";
1631 case 16529: return "XAUTH_ANSWER";
1632 default: return "Private use";
1637 certtype2str(guint8 type) {
1638 #define NUM_CERTTYPE 11
1639 static const char *msgs[NUM_CERTTYPE] = {
1641 "PKCS #7 wrapped X.509 certificate",
1644 "X.509 Certificate - Signature",
1645 "X.509 Certificate - Key Exchange",
1647 "Certificate Revocation List (CRL)",
1648 "Authority Revocation List (ARL)",
1650 "X.509 Certificate - Attribute",
1652 if(type > NUM_CERTTYPE)
1658 get_num(tvbuff_t *tvb, int offset, guint16 len, guint32 *num_p) {
1662 *num_p = tvb_get_guint8(tvb, offset);
1665 *num_p = tvb_get_ntohs(tvb, offset);
1668 *num_p = tvb_get_ntoh24(tvb, offset);
1671 *num_p = tvb_get_ntohl(tvb, offset);
1681 proto_register_isakmp(void)
1683 /* static hf_register_info hf[] = {
1685 { "Name", "isakmp.abbreviation", TYPE, VALS_POINTER }},
1687 static gint *ett[] = {
1690 &ett_isakmp_payload,
1693 proto_isakmp = proto_register_protocol("Internet Security Association and Key Management Protocol",
1694 "ISAKMP", "isakmp");
1695 /* proto_register_field_array(proto_isakmp, hf, array_length(hf));*/
1696 proto_register_subtree_array(ett, array_length(ett));
1698 register_dissector("isakmp", dissect_isakmp, proto_isakmp);
1702 proto_reg_handoff_isakmp(void)
1704 dissector_handle_t isakmp_handle;
1706 isakmp_handle = find_dissector("isakmp");
1707 dissector_add("udp.port", UDP_PORT_ISAKMP, isakmp_handle);
1708 dissector_add("tcp.port", TCP_PORT_ISAKMP, isakmp_handle);