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wireshark/packet-isakmp.c

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/* packet-isakmp.c
* Routines for the Internet Security Association and Key Management Protocol
* (ISAKMP) (RFC 2408) and the Internet IP Security Domain of Interpretation
* for ISAKMP (RFC 2407)
* Brad Robel-Forrest <brad.robel-forrest@watchguard.com>
*
* $Id: packet-isakmp.c,v 1.79 2004/06/15 18:47:24 gerald Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <epan/packet.h>
#include <epan/ipv6-utils.h>
#include "ipproto.h"
#define isakmp_min(a, b) ((a<b) ? a : b)
static int proto_isakmp = -1;
static gint ett_isakmp = -1;
static gint ett_isakmp_flags = -1;
static gint ett_isakmp_payload = -1;
#define UDP_PORT_ISAKMP 500
#define TCP_PORT_ISAKMP 500
#define NUM_PROTO_TYPES 5
#define proto2str(t) \
((t < NUM_PROTO_TYPES) ? prototypestr[t] : "UNKNOWN-PROTO-TYPE")
static const char *prototypestr[NUM_PROTO_TYPES] = {
"RESERVED",
"ISAKMP",
"IPSEC_AH",
"IPSEC_ESP",
"IPCOMP"
};
#define NUM_P1_ATT_TYPES 17
#define p1_atttype2str(t) \
((t < NUM_P1_ATT_TYPES) ? p1_atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
static const char *p1_atttypestr[NUM_P1_ATT_TYPES] = {
"UNKNOWN-ATTRIBUTE-TYPE",
"Encryption-Algorithm",
"Hash-Algorithm",
"Authentication-Method",
"Group-Description",
"Group-Type",
"Group-Prime",
"Group-Generator-One",
"Group-Generator-Two",
"Group-Curve-A",
"Group-Curve-B",
"Life-Type",
"Life-Duration",
"PRF",
"Key-Length",
"Field-Size",
"Group-Order"
};
#define NUM_ATT_TYPES 11
#define atttype2str(t) \
((t < NUM_ATT_TYPES) ? atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
static const char *atttypestr[NUM_ATT_TYPES] = {
"UNKNOWN-ATTRIBUTE-TYPE",
"SA-Life-Type",
"SA-Life-Duration",
"Group-Description",
"Encapsulation-Mode",
"Authentication-Algorithm",
"Key-Length",
"Key-Rounds",
"Compress-Dictinary-Size",
"Compress-Private-Algorithm",
"ECN Tunnel"
};
#define NUM_TRANS_TYPES 2
#define trans2str(t) \
((t < NUM_TRANS_TYPES) ? transtypestr[t] : "UNKNOWN-TRANS-TYPE")
static const char *transtypestr[NUM_TRANS_TYPES] = {
"RESERVED",
"KEY_IKE"
};
#define NUM_AH_TRANS_TYPES 8
#define ah_trans2str(t) \
((t < NUM_AH_TRANS_TYPES) ? ah_transtypestr[t] : "UNKNOWN-AH-TRANS-TYPE")
static const char *ah_transtypestr[NUM_AH_TRANS_TYPES] = {
"RESERVED",
"RESERVED",
"MD5",
"SHA",
"DES",
"SHA2-256",
"SHA2-384",
"SHA2-512"
};
#define NUM_ESP_TRANS_TYPES 13
#define esp_trans2str(t) \
((t < NUM_ESP_TRANS_TYPES) ? esp_transtypestr[t] : "UNKNOWN-ESP-TRANS-TYPE")
static const char *esp_transtypestr[NUM_ESP_TRANS_TYPES] = {
"RESERVED",
"DES-IV64",
"DES",
"3DES",
"RC5",
"IDEA",
"CAST",
"BLOWFISH",
"3IDEA",
"DES-IV32",
"RC4",
"NULL",
"AES"
};
#define NUM_IPCOMP_TRANS_TYPES 5
#define ipcomp_trans2str(t) \
((t < NUM_IPCOMP_TRANS_TYPES) ? ipcomp_transtypestr[t] : "UNKNOWN-IPCOMP-TRANS-TYPE")
static const char *ipcomp_transtypestr[NUM_IPCOMP_TRANS_TYPES] = {
"RESERVED",
"OUI",
"DEFLATE",
"LZS",
"LZJH"
};
#define NUM_ID_TYPES 12
#define id2str(t) \
((t < NUM_ID_TYPES) ? idtypestr[t] : "UNKNOWN-ID-TYPE")
static const char *idtypestr[NUM_ID_TYPES] = {
"RESERVED",
"IPV4_ADDR",
"FQDN",
"USER_FQDN",
"IPV4_ADDR_SUBNET",
"IPV6_ADDR",
"IPV6_ADDR_SUBNET",
"IPV4_ADDR_RANGE",
"IPV6_ADDR_RANGE",
"DER_ASN1_DN",
"DER_ASN1_GN",
"KEY_ID"
};
#define NUM_GRPDESC_TYPES 19
#define grpdesc2str(t) ((t < NUM_GRPDESC_TYPES) ? grpdescstr[t] : "UNKNOWN-GROUP-DESCRIPTION")
static const char *grpdescstr[NUM_GRPDESC_TYPES] = {
"UNDEFINED - 0",
"Default 768-bit MODP group",
"Alternate 1024-bit MODP group",
"EC2N group on GP[2^155] group",
"EC2N group on GP[2^185] group",
"1536 bit MODP group",
"EC2N group over GF[2^163]",
"EC2N group over GF[2^163]",
"EC2N group over GF[2^283]",
"EC2N group over GF[2^283]",
"EC2N group over GF[2^409]",
"EC2N group over GF[2^409]",
"EC2N group over GF[2^571]",
"EC2N group over GF[2^571]",
"2048 bit MODP group",
"3072 bit MODP group",
"4096 bit MODP group",
"6144 bit MODP group",
"8192 bit MODP group",
};
struct isakmp_hdr {
guint8 icookie[8];
guint8 rcookie[8];
guint8 next_payload;
guint8 version;
guint8 exch_type;
guint8 flags;
#define E_FLAG 0x01
#define C_FLAG 0x02
#define A_FLAG 0x04
guint32 message_id;
guint32 length;
};
static proto_tree *dissect_payload_header(tvbuff_t *, int, int, guint8,
guint8 *, guint16 *, proto_tree *);
static void dissect_sa(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_proposal(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_transform(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_key_exch(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_id(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_cert(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_certreq(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_hash(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_sig(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_nonce(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_notif(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_delete(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_vid(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_config(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_nat_discovery(tvbuff_t *, int, int, proto_tree *, int);
static void dissect_nat_original_address(tvbuff_t *, int, int, proto_tree *, int);
static const char *payloadtype2str(guint8);
static const char *exchtype2str(guint8);
static const char *doitype2str(guint32);
static const char *msgtype2str(guint16);
static const char *situation2str(guint32);
static const char *value2str(int, guint16, guint32);
static const char *attrtype2str(guint8);
static const char *cfgattrident2str(guint16);
static const char *certtype2str(guint8);
static gboolean get_num(tvbuff_t *, int, guint16, guint32 *);
#define LOAD_TYPE_NONE 0 /* payload type for None */
#define LOAD_TYPE_PROPOSAL 2 /* payload type for Proposal */
#define LOAD_TYPE_TRANSFORM 3 /* payload type for Transform */
#define NUM_LOAD_TYPES 17
#define loadtype2str(t) \
((t < NUM_LOAD_TYPES) ? strfuncs[t].str : "Unknown payload type")
static struct strfunc {
const char * str;
void (*func)(tvbuff_t *, int, int, proto_tree *, int);
} strfuncs[NUM_LOAD_TYPES] = {
{"NONE", NULL },
{"Security Association", dissect_sa },
{"Proposal", dissect_proposal },
{"Transform", dissect_transform },
{"Key Exchange", dissect_key_exch },
{"Identification", dissect_id },
{"Certificate", dissect_cert },
{"Certificate Request", dissect_certreq },
{"Hash", dissect_hash },
{"Signature", dissect_sig },
{"Nonce", dissect_nonce },
{"Notification", dissect_notif },
{"Delete", dissect_delete },
{"Vendor ID", dissect_vid },
{"Attrib", dissect_config },
{"NAT-Discovery", dissect_nat_discovery }, /* draft-ietf-ipsec-nat-t-ike */
{"NAT-Original Address", dissect_nat_original_address } /* draft-ietf-ipsec-nat-t-ike */
};
#define VID_LEN 16
#define VID_MS_LEN 20
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 */
#define VID_CP_LEN 20
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};
static const guint8 VID_CYBERGUARD[VID_LEN] = {0x9A, 0xA1, 0xF3, 0xB4, 0x34, 0x72, 0xA4, 0x5D, 0x5F, 0x50, 0x6A, 0xEB, 0x26, 0xC, 0xF2, 0x14};
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
static const guint8 VID_rfc3706_dpd[VID_LEN]= {0xAF, 0xCA,0xD7, 0x13, 0x68, 0xA1, 0xF1, 0xC9, 0x6B, 0x86, 0x96, 0xFC, 0x77, 0x57, 0x01, 0x00}; /* RFC 3706 */
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 */
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 */
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) */
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) */
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 */
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 */
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 */
static const guint8 VID_GSSAPI[VID_LEN]= {0x62, 0x1B, 0x04, 0xBB, 0x09, 0x88, 0x2A, 0xC1, 0xE1, 0x59, 0x35, 0xFE, 0xFA, 0x24, 0xAE, 0xEE}; /* GSSAPI */
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 */
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 */
#define VID_LEN_8 8
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 */
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 */
/*
* Seen in Netscreen. Suppose to be ASCII HeartBeat_Notify - but I don't know the rest yet. I suspect it then proceeds with
* 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
* means. ykaul-at-netvision.net.il
*/
static const guint8 VID_HeartBeat_Notify[VID_LEN] = {0x48, 0x65, 0x61, 0x72, 0x74, 0x42, 0x65, 0x61, 0x74, 0x5f, 0x4e, 0x6f, 0x74, 0x69, 0x66, 0x79};
static void
dissect_payloads(tvbuff_t *tvb, proto_tree *tree, guint8 initial_payload,
int offset, int length)
{
guint8 payload, next_payload;
guint16 payload_length;
proto_tree * ntree;
for (payload = initial_payload; length != 0; payload = next_payload) {
if (payload == LOAD_TYPE_NONE) {
/*
* What? There's more stuff in this chunk of data, but the
* previous payload had a "next payload" type of None?
*/
proto_tree_add_text(tree, tvb, offset, length,
"Extra data: %s",
tvb_bytes_to_str(tvb, offset, length));
break;
}
ntree = dissect_payload_header(tvb, offset, length, payload,
&next_payload, &payload_length, tree);
if (ntree == NULL)
break;
if (payload_length >= 4) { /* XXX = > 4? */
if (payload < NUM_LOAD_TYPES && strfuncs[payload].func != NULL) {
(*strfuncs[payload].func)(tvb, offset + 4, payload_length - 4, ntree,
-1);
}
else {
proto_tree_add_text(ntree, tvb, offset + 4, payload_length - 4,
"Payload");
}
}
else {
proto_tree_add_text(ntree, tvb, offset + 4, 0,
"Payload (bogus, length is %u, must be at least 4)",
payload_length);
payload_length = 4;
}
offset += payload_length;
length -= payload_length;
}
}
static void
dissect_isakmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int offset = 0;
struct isakmp_hdr hdr;
proto_item * ti;
proto_tree * isakmp_tree = NULL;
guint32 len;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISAKMP");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
if (tree) {
ti = proto_tree_add_item(tree, proto_isakmp, tvb, offset, -1, FALSE);
isakmp_tree = proto_item_add_subtree(ti, ett_isakmp);
}
hdr.length = tvb_get_ntohl(tvb, offset + sizeof(hdr) - sizeof(hdr.length));
hdr.exch_type = tvb_get_guint8(tvb, sizeof(hdr.icookie) + sizeof(hdr.rcookie) + sizeof(hdr.next_payload) + sizeof(hdr.version));
if (check_col(pinfo->cinfo, COL_INFO))
col_add_str(pinfo->cinfo, COL_INFO, exchtype2str(hdr.exch_type));
if (tree) {
tvb_memcpy(tvb, (guint8 *)&hdr.icookie, offset, sizeof(hdr.icookie));
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.icookie),
"Initiator cookie: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.icookie)));
offset += sizeof(hdr.icookie);
tvb_memcpy(tvb, (guint8 *)&hdr.rcookie, offset, sizeof(hdr.rcookie));
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.rcookie),
"Responder cookie: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.rcookie)));
offset += sizeof(hdr.rcookie);
hdr.next_payload = tvb_get_guint8(tvb, offset);
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.next_payload),
"Next payload: %s (%u)",
payloadtype2str(hdr.next_payload), hdr.next_payload);
offset += sizeof(hdr.next_payload);
hdr.version = tvb_get_guint8(tvb, offset);
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.version),
"Version: %u.%u",
hi_nibble(hdr.version), lo_nibble(hdr.version));
offset += sizeof(hdr.version);
hdr.exch_type = tvb_get_guint8(tvb, offset);
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.exch_type),
"Exchange type: %s (%u)",
exchtype2str(hdr.exch_type), hdr.exch_type);
offset += sizeof(hdr.exch_type);
{
proto_item * fti;
proto_tree * ftree;
hdr.flags = tvb_get_guint8(tvb, offset);
fti = proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.flags), "Flags");
ftree = proto_item_add_subtree(fti, ett_isakmp_flags);
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
decode_boolean_bitfield(hdr.flags, E_FLAG, sizeof(hdr.flags)*8,
"Encryption", "No encryption"));
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
decode_boolean_bitfield(hdr.flags, C_FLAG, sizeof(hdr.flags)*8,
"Commit", "No commit"));
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
decode_boolean_bitfield(hdr.flags, A_FLAG, sizeof(hdr.flags)*8,
"Authentication", "No authentication"));
offset += sizeof(hdr.flags);
}
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.message_id),
"Message ID: 0x%s", tvb_bytes_to_str(tvb, offset, sizeof(hdr.message_id)));
offset += sizeof(hdr.message_id);
if (hdr.length < sizeof(hdr)) {
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.length),
"Length: (bogus, length is %u, should be at least %lu)",
hdr.length, (unsigned long)sizeof(hdr));
return;
}
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.length),
"Length: %u", hdr.length);
offset += sizeof(hdr.length);
len = hdr.length - sizeof(hdr);
if (hdr.flags & E_FLAG) {
if (len && isakmp_tree) {
proto_tree_add_text(isakmp_tree, tvb, offset, len,
"Encrypted payload (%d byte%s)",
len, plurality(len, "", "s"));
}
} else
dissect_payloads(tvb, isakmp_tree, hdr.next_payload, offset, len);
}
}
static proto_tree *
dissect_payload_header(tvbuff_t *tvb, int offset, int length, guint8 payload,
guint8 *next_payload_p, guint16 *payload_length_p, proto_tree *tree)
{
guint8 next_payload;
guint16 payload_length;
proto_item * ti;
proto_tree * ntree;
if (length < 4) {
proto_tree_add_text(tree, tvb, offset, length,
"Not enough room in payload for all transforms");
return NULL;
}
next_payload = tvb_get_guint8(tvb, offset);
payload_length = tvb_get_ntohs(tvb, offset + 2);
ti = proto_tree_add_text(tree, tvb, offset, payload_length,
"%s payload", loadtype2str(payload));
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
proto_tree_add_text(ntree, tvb, offset, 1,
"Next payload: %s (%u)",
payloadtype2str(next_payload), next_payload);
proto_tree_add_text(ntree, tvb, offset+2, 2, "Length: %u", payload_length);
*next_payload_p = next_payload;
*payload_length_p = payload_length;
return ntree;
}
static void
dissect_sa(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint32 doi;
guint32 situation;
if (length < 4) {
proto_tree_add_text(tree, tvb, offset, length,
"DOI %s (length is %u, should be >= 4)",
tvb_bytes_to_str(tvb, offset, length), length);
return;
}
doi = tvb_get_ntohl(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 4,
"Domain of interpretation: %s (%u)",
doitype2str(doi), doi);
offset += 4;
length -= 4;
if (doi == 1) {
/* IPSEC */
if (length < 4) {
proto_tree_add_text(tree, tvb, offset, length,
"Situation: %s (length is %u, should be >= 4)",
tvb_bytes_to_str(tvb, offset, length), length);
return;
}
situation = tvb_get_ntohl(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 4,
"Situation: %s (%u)",
situation2str(situation), situation);
offset += 4;
length -= 4;
dissect_payloads(tvb, tree, LOAD_TYPE_PROPOSAL, offset, length);
} else {
/* Unknown */
proto_tree_add_text(tree, tvb, offset, length,
"Situation: %s",
tvb_bytes_to_str(tvb, offset, length));
}
}
static void
dissect_proposal(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 protocol_id;
guint8 spi_size;
guint8 num_transforms;
guint8 next_payload;
guint16 payload_length;
proto_tree * ntree;
guint8 proposal_num;
proposal_num = tvb_get_guint8(tvb, offset);
proto_item_append_text(tree, " # %d",proposal_num);
proto_tree_add_text(tree, tvb, offset, 1,
"Proposal number: %u", proposal_num);
offset += 1;
length -= 1;
protocol_id = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Protocol ID: %s (%u)",
proto2str(protocol_id), protocol_id);
offset += 1;
length -= 1;
spi_size = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"SPI size: %u", spi_size);
offset += 1;
length -= 1;
num_transforms = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Number of transforms: %u", num_transforms);
offset += 1;
length -= 1;
if (spi_size) {
proto_tree_add_text(tree, tvb, offset, spi_size, "SPI: %s",
tvb_bytes_to_str(tvb, offset, spi_size));
offset += spi_size;
length -= spi_size;
}
while (num_transforms > 0) {
ntree = dissect_payload_header(tvb, offset, length, LOAD_TYPE_TRANSFORM,
&next_payload, &payload_length, tree);
if (ntree == NULL)
break;
if (length < payload_length) {
proto_tree_add_text(tree, tvb, offset + 4, length,
"Not enough room in payload for all transforms");
break;
}
if (payload_length >= 4)
dissect_transform(tvb, offset + 4, payload_length - 4, ntree, protocol_id);
else
proto_tree_add_text(ntree, tvb, offset + 4, payload_length - 4, "Payload");
offset += payload_length;
length -= payload_length;
num_transforms--;
}
}
static void
dissect_transform(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int protocol_id)
{
guint8 transform_id;
guint8 transform_num;
transform_num = tvb_get_guint8(tvb, offset);
proto_item_append_text(tree," # %d",transform_num);
proto_tree_add_text(tree, tvb, offset, 1,
"Transform number: %u", transform_num);
offset += 1;
length -= 1;
transform_id = tvb_get_guint8(tvb, offset);
switch (protocol_id) {
default:
proto_tree_add_text(tree, tvb, offset, 1,
"Transform ID: %u", transform_id);
break;
case 1: /* ISAKMP */
proto_tree_add_text(tree, tvb, offset, 1,
"Transform ID: %s (%u)",
trans2str(transform_id), transform_id);
break;
case 2: /* AH */
proto_tree_add_text(tree, tvb, offset, 1,
"Transform ID: %s (%u)",
ah_trans2str(transform_id), transform_id);
break;
case 3: /* ESP */
proto_tree_add_text(tree, tvb, offset, 1,
"Transform ID: %s (%u)",
esp_trans2str(transform_id), transform_id);
break;
case 4: /* IPCOMP */
proto_tree_add_text(tree, tvb, offset, 1,
"Transform ID: %s (%u)",
ipcomp_trans2str(transform_id), transform_id);
break;
}
offset += 3;
length -= 3;
while (length>0) {
const char *str;
int ike_phase1 = 0;
guint16 aft = tvb_get_ntohs(tvb, offset);
guint16 type = aft & 0x7fff;
guint16 len;
guint32 val;
guint pack_len;
if (protocol_id == 1 && transform_id == 1) {
ike_phase1 = 1;
str = p1_atttype2str(type);
}
else {
str = atttype2str(type);
}
if (aft & 0x8000) {
val = tvb_get_ntohs(tvb, offset + 2);
proto_tree_add_text(tree, tvb, offset, 4,
"%s (%u): %s (%u)",
str, type,
value2str(ike_phase1, type, val), val);
offset += 4;
length -= 4;
}
else {
len = tvb_get_ntohs(tvb, offset + 2);
pack_len = 4 + len;
if (!get_num(tvb, offset + 4, len, &val)) {
proto_tree_add_text(tree, tvb, offset, pack_len,
"%s (%u): <too big (%u bytes)>",
str, type, len);
} else {
proto_tree_add_text(tree, tvb, offset, pack_len,
"%s (%u): %s (%u)",
str, type,
value2str(ike_phase1, type, val), val);
}
offset += pack_len;
length -= pack_len;
}
}
}
static void
dissect_key_exch(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
proto_tree_add_text(tree, tvb, offset, length, "Key Exchange Data");
}
static void
dissect_id(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 id_type;
guint8 protocol_id;
guint16 port;
id_type = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"ID type: %s (%u)", id2str(id_type), id_type);
offset += 1;
length -= 1;
protocol_id = tvb_get_guint8(tvb, offset);
if (protocol_id == 0) {
proto_tree_add_text(tree, tvb, offset, 1,
"Protocol ID: Unused");
} else {
proto_tree_add_text(tree, tvb, offset, 1,
"Protocol ID: %s (%u)",
ipprotostr(protocol_id), protocol_id);
}
offset += 1;
length -= 1;
port = tvb_get_ntohs(tvb, offset);
if (port == 0)
proto_tree_add_text(tree, tvb, offset, 2, "Port: Unused");
else
proto_tree_add_text(tree, tvb, offset, 2, "Port: %u", port);
offset += 2;
length -= 2;
switch (id_type) {
case 1:
proto_tree_add_text(tree, tvb, offset, length,
"Identification data: %s",
ip_to_str(tvb_get_ptr(tvb, offset, 4)));
break;
case 2:
case 3:
proto_tree_add_text(tree, tvb, offset, length,
"Identification data: %.*s", length,
tvb_get_ptr(tvb, offset, length));
break;
case 4:
proto_tree_add_text(tree, tvb, offset, length,
"Identification data: %s/%s",
ip_to_str(tvb_get_ptr(tvb, offset, 4)),
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)));
break;
default:
proto_tree_add_text(tree, tvb, offset, length, "Identification Data");
break;
}
}
static void
dissect_cert(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 cert_enc;
cert_enc = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Certificate encoding: %u - %s",
cert_enc, certtype2str(cert_enc));
offset += 1;
length -= 1;
proto_tree_add_text(tree, tvb, offset, length, "Certificate Data");
}
static void
dissect_certreq(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 cert_type;
cert_type = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Certificate type: %u - %s",
cert_type, certtype2str(cert_type));
offset += 1;
length -= 1;
proto_tree_add_text(tree, tvb, offset, length, "Certificate Authority");
}
static void
dissect_hash(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
proto_tree_add_text(tree, tvb, offset, length, "Hash Data");
}
static void
dissect_sig(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
proto_tree_add_text(tree, tvb, offset, length, "Signature Data");
}
static void
dissect_nonce(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
proto_tree_add_text(tree, tvb, offset, length, "Nonce Data");
}
static void
dissect_notif(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint32 doi;
guint8 protocol_id;
guint8 spi_size;
guint16 msgtype;
doi = tvb_get_ntohl(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 4,
"Domain of Interpretation: %s (%u)",
doitype2str(doi), doi);
offset += 4;
length -= 4;
protocol_id = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Protocol ID: %s (%u)",
proto2str(protocol_id), protocol_id);
offset += 1;
length -= 1;
spi_size = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"SPI size: %u", spi_size);
offset += 1;
length -= 1;
msgtype = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2,
"Message type: %s (%u)", msgtype2str(msgtype), msgtype);
offset += 2;
length -= 2;
if (spi_size) {
proto_tree_add_text(tree, tvb, offset, spi_size, "Security Parameter Index");
offset += spi_size;
length -= spi_size;
}
if (length > 0)
proto_tree_add_text(tree, tvb, offset, length, "Notification Data");
}
static void
dissect_delete(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint32 doi;
guint8 protocol_id;
guint8 spi_size;
guint16 num_spis;
guint16 i;
doi = tvb_get_ntohl(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 4,
"Domain of Interpretation: %s (%u)",
doitype2str(doi), doi);
offset += 4;
length -= 4;
protocol_id = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Protocol ID: %s (%u)",
proto2str(protocol_id), protocol_id);
offset += 1;
length -= 1;
spi_size = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"SPI size: %u", spi_size);
offset += 1;
length -= 1;
num_spis = tvb_get_ntohs(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 2,
"Number of SPIs: %u", num_spis);
offset += 2;
length -= 2;
for (i = 0; i < num_spis; ++i) {
if (length < spi_size) {
proto_tree_add_text(tree, tvb, offset, length,
"Not enough room in payload for all SPI's");
break;
}
proto_tree_add_text(tree, tvb, offset, spi_size,
"SPI (%d)", i);
offset += spi_size;
length -= spi_size;
}
}
static void
dissect_vid(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint32 CPproduct, CPversion;
const guint8 * pVID;
proto_item * pt;
proto_tree * ntree;
pVID = tvb_get_ptr(tvb, offset, length);
pt = proto_tree_add_text(tree, tvb, offset, length, "Vendor ID: ");
if (memcmp(pVID, VID_MS_W2K_WXP, isakmp_min(VID_MS_LEN, length)) == 0)
proto_item_append_text(pt, "Microsoft Win2K/WinXP");
else
if (memcmp(pVID, VID_CP, isakmp_min(VID_CP_LEN, length)) == 0)
{
proto_item_append_text(pt, "Check Point");
offset += VID_CP_LEN;
CPproduct = tvb_get_ntohl(tvb, offset);
ntree = proto_item_add_subtree(pt, ett_isakmp_payload);
pt = proto_tree_add_text(ntree, tvb, offset, sizeof(CPproduct), "Check Point Product: ");
switch (CPproduct) {
case 1: proto_item_append_text(pt, "VPN-1");
break;
case 2: proto_item_append_text(pt, "SecuRemote/SecureClient");
break;
default: proto_item_append_text(pt, "Unknown CP product!");
break;
}
offset += sizeof(CPproduct);
CPversion = tvb_get_ntohl(tvb, offset);
pt = proto_tree_add_text(ntree, tvb, offset, length, "Version: ");
switch (CPversion) {
case 2: proto_item_append_text(pt, "4.1");
break;
case 3: proto_item_append_text(pt, "4.1 SP-1");
break;
case 4002: proto_item_append_text(pt, "4.1 (SP-2 or above)");
break;
case 5000: proto_item_append_text(pt, "NG");
break;
case 5001: proto_item_append_text(pt, "NG Feature Pack 1");
break;
case 5002: proto_item_append_text(pt, "NG Feature Pack 2");
break;
case 5003: proto_item_append_text(pt, "NG Feature Pack 3");
break;
case 5004: proto_item_append_text(pt, "NG with Application Intelligence");
break;
case 5005: proto_item_append_text(pt, "NG with Application Intelligence R55");
break;
default: proto_item_append_text(pt, " Unknown CP version!");
break;
}
}
else
if (memcmp(pVID, VID_CYBERGUARD, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Cyber Guard");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_03, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-03");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_1_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.1.2");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_2_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.2.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_1_2_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 1.2.2");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_0_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.0.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_2_1_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 2.1.2");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_3_0_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 3.0.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_3_0_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 3.0.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_0_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.0.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_0_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.0.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_1_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.1.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_4_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 4.1.1");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_0_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.0.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_1_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.1.0");
else
if (memcmp(pVID, VID_SSH_IPSEC_EXPRESS_5_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Ssh Communications Security IPSEC Express version 5.1.1");
else
if (memcmp(pVID, VID_SSH_SENTINEL, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Sentinel");
else
if (memcmp(pVID, VID_SSH_SENTINEL_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Sentinel 1.1");
else
if (memcmp(pVID, VID_SSH_SENTINEL_1_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Sentinel 1.2");
else
if (memcmp(pVID, VID_SSH_SENTINEL_1_3, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Sentinel 1.3");
else
if (memcmp(pVID, VID_SSH_QUICKSEC_0_9_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Communications Security QuickSec 0.9.0");
else
if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_0, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.0");
else
if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.1");
else
if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.2");
else
if (memcmp(pVID, VID_SSH_QUICKSEC_1_1_3, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "SSH Communications Security QuickSec 1.1.3");
else
if (memcmp(pVID, VID_draft_huttunen_ipsec_esp_in_udp_01, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-huttunen-ipsec-esp-in-udp-01.txt");
else
if (memcmp(pVID, VID_draft_stenberg_ipsec_nat_traversal_01, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-stenberg-ipsec-nat-traversal-01");
else
if (memcmp(pVID, VID_draft_stenberg_ipsec_nat_traversal_02, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-stenberg-ipsec-nat-traversal-02");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_00, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-00");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_02a, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-02");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_nat_t_ike_02b, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-nat-t-ike-02");
else
if (memcmp(pVID, VID_draft_beaulieu_ike_xauth_02, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "draft-beaulieu-ike-xauth-02.txt");
else
if (memcmp(pVID, VID_rfc3706_dpd, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "RFC 3706 Detecting Dead IKE Peers (DPD)");
else
if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys");
else
if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys");
else
if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_REV_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys (Revised)");
else
if (memcmp(pVID, VID_IKE_CHALLENGE_RESPONSE_REV_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "IKE Challenge/Response for Authenticated Cryptographic Keys (Revised)");
else
if (memcmp(pVID, VID_MS_L2TP_IPSEC_VPN_CLIENT, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "Microsoft L2TP/IPSec VPN Client");
else
if (memcmp(pVID, VID_GSS_API_1, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "A GSS-API Authentication Method for IKE");
else
if (memcmp(pVID, VID_GSS_API_2, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "A GSS-API Authentication Method for IKE");
else
if (memcmp(pVID, VID_GSSAPI, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "GSSAPI");
else
if (memcmp(pVID, VID_MS_NT5_ISAKMPOAKLEY, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "MS NT5 ISAKMPOAKLEY");
else
if (memcmp(pVID, VID_CISCO_UNITY, isakmp_min(VID_LEN, length)) == 0)
proto_item_append_text(pt, "CISCO-UNITY");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_antireplay_00, isakmp_min(VID_LEN_8, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-antireplay-00.txt");
else
if (memcmp(pVID, VID_draft_ietf_ipsec_heartbeats_00, isakmp_min(VID_LEN_8, length)) == 0)
proto_item_append_text(pt, "draft-ietf-ipsec-heartbeats-00.txt");
else
proto_item_append_text(pt, "unknown vendor ID: 0x%s",tvb_bytes_to_str(tvb, offset, length));
}
static void
dissect_config(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 type;
type = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"Type %s (%u)",attrtype2str(type),type);
offset += 2;
length -= 2;
proto_tree_add_text(tree, tvb, offset, 2,
"Identifier: %u", tvb_get_ntohs(tvb, offset));
offset += 2;
length -= 2;
while(length>0) {
guint16 aft = tvb_get_ntohs(tvb, offset);
guint16 type = aft & 0x7fff;
guint16 len;
guint32 val;
guint pack_len;
if (aft & 0x8000) {
val = tvb_get_ntohs(tvb, offset + 2);
proto_tree_add_text(tree, tvb, offset, 4,
"%s (%u)", cfgattrident2str(type), val);
offset += 4;
length -= 4;
}
else {
len = tvb_get_ntohs(tvb, offset + 2);
pack_len = 4 + len;
if (!get_num(tvb, offset + 4, len, &val)) {
proto_tree_add_text(tree, tvb, offset, pack_len,
"%s: <too big (%u bytes)>",
cfgattrident2str(type), len);
} else {
proto_tree_add_text(tree, tvb, offset, 4,
"%s (%ue)", cfgattrident2str(type),
val);
}
offset += pack_len;
length -= pack_len;
}
}
}
static void
dissect_nat_discovery(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
proto_tree_add_text(tree, tvb, offset, length,
"Hash of address and port: %s",
tvb_bytes_to_str(tvb, offset, length));
}
static void
dissect_nat_original_address(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
int unused _U_)
{
guint8 id_type;
guint32 addr_ipv4;
struct e_in6_addr addr_ipv6;
id_type = tvb_get_guint8(tvb, offset);
proto_tree_add_text(tree, tvb, offset, 1,
"ID type: %s (%u)", id2str(id_type), id_type);
offset += 1;
length -= 1;
offset += 3; /* reserved */
length -= 3;
switch (id_type) {
case 1: /* ID_IPV4_ADDR */
if (length == 4) {
tvb_memcpy(tvb, (guint8 *)&addr_ipv4, offset, length);
proto_tree_add_text(tree, tvb, offset, length,
"Original address: %s",
ip_to_str((guint8 *)&addr_ipv4));
} else {
proto_tree_add_text(tree, tvb, offset, length,
"Original address: bad length, should be 4, is %u",
length);
}
break;
case 5: /* ID_IPV6_ADDR */
if (length == 16) {
tvb_memcpy(tvb, (guint8 *)&addr_ipv6, offset, length);
proto_tree_add_text(tree, tvb, offset, length,
"Original address: %s",
ip6_to_str(&addr_ipv6));
} else {
proto_tree_add_text(tree, tvb, offset, length,
"Original address: bad length, should be 16, is %u",
length);
}
break;
default:
proto_tree_add_text(tree, tvb, offset, length,
"Original address: bad address type");
break;
}
}
static const char *
payloadtype2str(guint8 type) {
if (type < NUM_LOAD_TYPES)
return strfuncs[type].str;
if (type < 128)
return "RESERVED";
return "Private USE";
}
static const char *
exchtype2str(guint8 type) {
#define NUM_EXCHSTRS 7
static const char * exchstrs[NUM_EXCHSTRS] = {
"NONE",
"Base",
"Identity Protection (Main Mode)",
"Authentication Only",
"Aggressive",
"Informational",
"Transaction (Config Mode)"
};
if (type < NUM_EXCHSTRS) return exchstrs[type];
if (type < 32) return "ISAKMP Future Use";
switch (type) {
case 32:
return "Quick Mode";
case 33:
return "New Group Mode";
}
if (type < 240)
return "DOI Specific Use";
return "Private Use";
}
static const char *
doitype2str(guint32 type) {
if (type == 1) return "IPSEC";
return "Unknown DOI Type";
}
static const char *
msgtype2str(guint16 type) {
#define NUM_PREDEFINED 31
static const char *msgs[NUM_PREDEFINED] = {
"<UNKNOWN>",
"INVALID-PAYLOAD-TYPE",
"DOI-NOT-SUPPORTED",
"SITUATION-NOT-SUPPORTED",
"INVALID-COOKIE",
"INVALID-MAJOR-VERSION",
"INVALID-MINOR-VERSION",
"INVALID-EXCHANGE-TYPE",
"INVALID-FLAGS",
"INVALID-MESSAGE-ID",
"INVALID-PROTOCOL-ID",
"INVALID-SPI",
"INVALID-TRANSFORM-ID",
"ATTRIBUTES-NOT-SUPPORTED",
"NO-PROPOSAL-CHOSEN",
"BAD-PROPOSAL-SYNTAX",
"PAYLOAD-MALFORMED",
"INVALID-KEY-INFORMATION",
"INVALID-ID-INFORMATION",
"INVALID-CERT-ENCODING",
"INVALID-CERTIFICATE",
"CERT-TYPE-UNSUPPORTED",
"INVALID-CERT-AUTHORITY",
"INVALID-HASH-INFORMATION",
"AUTHENTICATION-FAILED",
"INVALID-SIGNATURE",
"ADDRESS-NOTIFICATION",
"NOTIFY-SA-LIFETIME",
"CERTIFICATE-UNAVAILABLE",
"UNSUPPORTED-EXCHANGE-TYPE",
"UNEQUAL-PAYLOAD-LENGTHS"
};
if (type < NUM_PREDEFINED) return msgs[type];
if (type < 8192) return "RESERVED (Future Use)";
if (type < 16384) return "Private Use";
if (type < 16385) return "CONNECTED";
if (type < 24576) return "RESERVED (Future Use) - status";
if (type < 24577) return "RESPONDER-LIFETIME";
if (type < 24578) return "REPLAY-STATUS";
if (type < 24579) return "INITIAL-CONTACT";
if (type < 32768) return "DOI-specific codes";
if (type < 40960) return "Private Use - status";
if (type < 65535) return "RESERVED (Future Use) - status (2)";
return "Huh? You should never see this! Shame on you!";
}
static const char *
situation2str(guint32 type) {
#define SIT_MSG_NUM 1024
#define SIT_IDENTITY 0x01
#define SIT_SECRECY 0x02
#define SIT_INTEGRITY 0x04
static char msg[SIT_MSG_NUM];
int n = 0;
char * sep = "";
int ret;
if (type & SIT_IDENTITY) {
ret = snprintf(msg, SIT_MSG_NUM-n, "%sIDENTITY", sep);
if (ret == -1 || ret >= SIT_MSG_NUM-n) {
/* Truncated. */
msg[SIT_MSG_NUM-1] = '\0';
return msg;
}
n += ret;
sep = " & ";
}
if (type & SIT_SECRECY) {
if (n >= SIT_MSG_NUM) {
/* No more room. */
return msg;
}
ret = snprintf(msg, SIT_MSG_NUM-n, "%sSECRECY", sep);
if (ret == -1 || ret >= SIT_MSG_NUM-n) {
/* Truncated. */
msg[SIT_MSG_NUM-1] = '\0';
return msg;
}
n += ret;
sep = " & ";
}
if (type & SIT_INTEGRITY) {
if (n >= SIT_MSG_NUM) {
/* No more room. */
return msg;
}
ret = snprintf(msg, SIT_MSG_NUM-n, "%sINTEGRITY", sep);
if (ret == -1 || ret >= SIT_MSG_NUM-n) {
/* Truncated. */
msg[SIT_MSG_NUM-1] = '\0';
return msg;
}
n += ret;
sep = " & ";
}
return msg;
}
static const char *
value2str(int ike_p1, guint16 att_type, guint32 value) {
if (value == 0) return "RESERVED";
if (!ike_p1) {
switch (att_type) {
case 1:
switch (value) {
case 0: return "RESERVED";
case 1: return "Seconds";
case 2: return "Kilobytes";
default: return "UNKNOWN-SA-VALUE";
}
case 2:
return "Duration-Value";
case 3:
return "Group-Value";
case 4:
switch (value) {
case 0: return "RESERVED";
case 1: return "Tunnel";
case 2: return "Transport";
case 3: return "UDP-Encapsulated-Tunnel"; /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
case 4: return "UDP-Encapsulated-Transport"; /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
case 61440: return "Check Point IPSec UDP Encapsulation";
case 61443: return "UDP-Encapsulated-Tunnel (draft)";
case 61444: return "UDP-Encapsulated-Transport (draft)";
default: return "UNKNOWN-ENCAPSULATION-VALUE";
}
case 5:
switch (value) {
case 0: return "RESERVED";
case 1: return "HMAC-MD5";
case 2: return "HMAC-SHA";
case 3: return "DES-MAC";
case 4: return "KPDK";
case 5: return "HMAC-SHA2-256";
case 6: return "HMAC-SHA2-384";
case 7: return "HMAC-SHA2-512";
default: return "UNKNOWN-AUTHENTICATION-VALUE";
}
case 6:
return "Key-Length";
case 7:
return "Key-Rounds";
case 8:
return "Compress-Dictionary-size";
case 9:
return "Compress Private Algorithm";
default: return "UNKNOWN-ATTRIBUTE-TYPE";
}
}
else {
switch (att_type) {
case 1:
switch (value) {
case 1: return "DES-CBC";
case 2: return "IDEA-CBC";
case 3: return "BLOWFISH-CBC";
case 4: return "RC5-R16-B64-CBC";
case 5: return "3DES-CBC";
case 6: return "CAST-CBC";
case 7: return "AES-CBC";
default: return "UNKNOWN-ENCRYPTION-ALG";
}
case 2:
switch (value) {
case 1: return "MD5";
case 2: return "SHA";
case 3: return "TIGER";
case 4: return "SHA2-256";
case 5: return "SHA2-384";
case 6: return "SHA2-512";
default: return "UNKNOWN-HASH-ALG";
}
case 3:
switch (value) {
case 1: return "PSK";
case 2: return "DSS-SIG";
case 3: return "RSA-SIG";
case 4: return "RSA-ENC";
case 5: return "RSA-Revised-ENC";
case 6: return "Encryption with El-Gamal";
case 7: return "Revised encryption with El-Gamal";
case 8: return "ECDSA signatures";
case 9: return "AES-XCBC-MAC";
case 64221: return "HybridInitRSA";
case 64222: return "HybridRespRSA";
case 64223: return "HybridInitDSS";
case 64224: return "HybridRespDSS";
case 65001: return "XAUTHInitPreShared";
case 65002: return "XAUTHRespPreShared";
case 65003: return "XAUTHInitDSS";
case 65004: return "XAUTHRespDSS";
case 65005: return "XAUTHInitRSA";
case 65006: return "XAUTHRespRSA";
case 65007: return "XAUTHInitRSAEncryption";
case 65008: return "XAUTHRespRSAEncryption";
case 65009: return "XAUTHInitRSARevisedEncryption";
case 65010: return "XAUTHRespRSARevisedEncryption";
default: return "UNKNOWN-AUTH-METHOD";
}
case 4: return grpdesc2str(value);
case 6:
case 7:
case 8:
case 9:
case 10:
case 16:
return "Group-Value";
case 5:
switch (value) {
case 1: return "MODP";
case 2: return "ECP";
case 3: return "EC2N";
default: return "UNKNOWN-GROUPT-TYPE";
}
case 11:
switch (value) {
case 1: return "Seconds";
case 2: return "Kilobytes";
default: return "UNKNOWN-SA-VALUE";
}
case 12:
return "Duration-Value";
case 13:
return "PRF-Value";
case 14:
return "Key-Length";
case 15:
return "Field-Size";
default: return "UNKNOWN-ATTRIBUTE-TYPE";
}
}
}
static const char *
attrtype2str(guint8 type) {
switch (type) {
case 0: return "Reserved";
case 1: return "ISAKMP_CFG_REQUEST";
case 2: return "ISAKMP_CFG_REPLY";
case 3: return "ISAKMP_CFG_SET";
case 4: return "ISAKMP_CFG_ACK";
}
if(type < 127)
return "Future use";
return "Private use";
}
static const char *
cfgattrident2str(guint16 ident) {
#define NUM_ATTR_DEFINED 12
static const char *msgs[NUM_PREDEFINED] = {
"RESERVED",
"INTERNAL_IP4_ADDRESS",
"INTERNAL_IP4_NETMASK",
"INTERNAL_IP4_DNS",
"INTERNAL_IP4_NBNS",
"INTERNAL_ADDRESS_EXPIREY",
"INTERNAL_IP4_DHCP",
"APPLICATION_VERSION"
"INTERNAL_IP6_ADDRESS",
"INTERNAL_IP6_NETMASK",
"INTERNAL_IP6_DNS",
"INTERNAL_IP6_NBNS",
"INTERNAL_IP6_DHCP",
};
if(ident < NUM_ATTR_DEFINED)
return msgs[ident];
if(ident < 16383)
return "Future use";
switch(ident) {
case 16520: return "XAUTH_TYPE";
case 16521: return "XAUTH_USER_NAME";
case 16522: return "XAUTH_USER_PASSWORD";
case 16523: return "XAUTH_PASSCODE";
case 16524: return "XAUTH_MESSAGE";
case 16525: return "XAUTH_CHALLANGE";
case 16526: return "XAUTH_DOMAIN";
case 16527: return "XAUTH_STATUS";
case 16528: return "XAUTH_NEXT_PIN";
case 16529: return "XAUTH_ANSWER";
default: return "Private use";
}
}
static const char *
certtype2str(guint8 type) {
#define NUM_CERTTYPE 11
static const char *msgs[NUM_CERTTYPE] = {
"NONE",
"PKCS #7 wrapped X.509 certificate",
"PGP Certificate",
"DNS Signed Key",
"X.509 Certificate - Signature",
"X.509 Certificate - Key Exchange",
"Kerberos Tokens",
"Certificate Revocation List (CRL)",
"Authority Revocation List (ARL)",
"SPKI Certificate",
"X.509 Certificate - Attribute",
};
if(type > NUM_CERTTYPE)
return "RESERVED";
return msgs[type];
}
static gboolean
get_num(tvbuff_t *tvb, int offset, guint16 len, guint32 *num_p) {
switch (len) {
case 1:
*num_p = tvb_get_guint8(tvb, offset);
break;
case 2:
*num_p = tvb_get_ntohs(tvb, offset);
break;
case 3:
*num_p = tvb_get_ntoh24(tvb, offset);
break;
case 4:
*num_p = tvb_get_ntohl(tvb, offset);
break;
default:
return FALSE;
}
return TRUE;
}
void
proto_register_isakmp(void)
{
/* static hf_register_info hf[] = {
{ &variable,
{ "Name", "isakmp.abbreviation", TYPE, VALS_POINTER }},
};*/
static gint *ett[] = {
&ett_isakmp,
&ett_isakmp_flags,
&ett_isakmp_payload,
};
proto_isakmp = proto_register_protocol("Internet Security Association and Key Management Protocol",
"ISAKMP", "isakmp");
/* proto_register_field_array(proto_isakmp, hf, array_length(hf));*/
proto_register_subtree_array(ett, array_length(ett));
register_dissector("isakmp", dissect_isakmp, proto_isakmp);
}
void
proto_reg_handoff_isakmp(void)
{
dissector_handle_t isakmp_handle;
isakmp_handle = find_dissector("isakmp");
dissector_add("udp.port", UDP_PORT_ISAKMP, isakmp_handle);
dissector_add("tcp.port", TCP_PORT_ISAKMP, isakmp_handle);
}
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