forked from osmocom/wireshark
2521 lines
84 KiB
C
2521 lines
84 KiB
C
/* packet-isakmp.c
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* Routines for the Internet Security Association and Key Management Protocol
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* (ISAKMP) (RFC 2408) and the Internet IP Security Domain of Interpretation
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* for ISAKMP (RFC 2407)
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* Brad Robel-Forrest <brad.robel-forrest@watchguard.com>
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*
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* Added routines for the Internet Key Exchange (IKEv2) Protocol
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* (draft-ietf-ipsec-ikev2-17.txt)
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* Shoichi Sakane <sakane@tanu.org>
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/ipv6-utils.h>
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#include <epan/ipproto.h>
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#include <epan/dissectors/packet-x509if.h>
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#include <epan/dissectors/packet-isakmp.h>
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#define isakmp_min(a, b) ((a<b) ? a : b)
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#define ARLEN(a) (sizeof(a)/sizeof(a[0]))
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static int proto_isakmp = -1;
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static int hf_ike_certificate_authority = -1;
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static int hf_ike_v2_certificate_authority = -1;
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static int hf_ike_nat_keepalive = -1;
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static gint ett_isakmp = -1;
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static gint ett_isakmp_flags = -1;
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static gint ett_isakmp_payload = -1;
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#define UDP_PORT_ISAKMP 500
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#define TCP_PORT_ISAKMP 500
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static const value_string vs_proto[] = {
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{ 0, "RESERVED" },
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{ 1, "ISAKMP" },
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{ 2, "IPSEC_AH" },
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{ 3, "IPSEC_ESP" },
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{ 4, "IPCOMP" },
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{ 0, NULL },
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};
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struct isakmp_hdr {
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guint8 icookie[8];
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guint8 rcookie[8];
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guint8 next_payload;
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guint8 version;
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guint8 exch_type;
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guint8 flags;
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#define E_FLAG 0x01
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#define C_FLAG 0x02
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#define A_FLAG 0x04
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#define I_FLAG 0x08
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#define V_FLAG 0x10
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#define R_FLAG 0x20
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guint32 message_id;
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guint32 length;
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};
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static proto_tree *dissect_payload_header(tvbuff_t *, int, int, int, guint8,
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guint8 *, guint16 *, proto_tree *);
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static void dissect_sa(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_proposal(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_transform(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_transform2(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_key_exch(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_id(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_cert(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_certreq_v1(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_certreq_v2(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_hash(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_auth(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_sig(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_nonce(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_notif(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_delete(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_vid(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_config(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_nat_discovery(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_nat_original_address(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_ts(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_enc(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void dissect_eap(tvbuff_t *, int, int, proto_tree *,
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packet_info *, int, int);
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static void
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dissect_payloads(tvbuff_t *tvb, proto_tree *tree, int isakmp_version,
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guint8 initial_payload, int offset, int length,
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packet_info *pinfo);
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static const char *payloadtype2str(int, guint8);
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static const char *exchtype2str(int, guint8);
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static const char *doitype2str(guint32);
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static const char *msgtype2str(int, guint16);
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static const char *situation2str(guint32);
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static const char *v1_attrval2str(int, guint16, guint32);
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static const char *v2_attrval2str(guint16, guint32);
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static const char *cfgtype2str(int, guint8);
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static const char *cfgattr2str(int, guint16);
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static const char *id2str(int, guint8);
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static const char *v2_tstype2str(guint8);
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static const char *v2_auth2str(guint8);
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static const char *certtype2str(int, guint8);
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static gboolean get_num(tvbuff_t *, int, guint16, guint32 *);
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#define LOAD_TYPE_NONE 0 /* payload type for None */
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#define LOAD_TYPE_PROPOSAL 2 /* payload type for Proposal */
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#define LOAD_TYPE_TRANSFORM 3 /* payload type for Transform */
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struct payload_func {
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guint8 type;
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const char * str;
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void (*func)(tvbuff_t *, int, int, proto_tree *, packet_info *, int, int);
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};
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static struct payload_func v1_plfunc[] = {
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{ 0, "NONE", NULL },
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{ 1, "Security Association", dissect_sa },
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{ 2, "Proposal", dissect_proposal },
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{ 3, "Transform", dissect_transform },
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{ 4, "Key Exchange", dissect_key_exch },
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{ 5, "Identification", dissect_id },
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{ 6, "Certificate", dissect_cert },
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{ 7, "Certificate Request", dissect_certreq_v1},
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{ 8, "Hash", dissect_hash },
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{ 9, "Signature", dissect_sig },
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{ 10, "Nonce", dissect_nonce },
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{ 11, "Notification", dissect_notif },
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{ 12, "Delete", dissect_delete },
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{ 13, "Vendor ID", dissect_vid },
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{ 14, "Attrib", dissect_config },
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{ 15, "NAT-Discovery", dissect_nat_discovery }, /* draft-ietf-ipsec-nat-t-ike-04 */
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{ 16, "NAT-Original Address", dissect_nat_original_address }, /* draft-ietf-ipsec-nat-t-ike */
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{ 130, "NAT-D (draft-ietf-ipsec-nat-t-ike-01 to 03)", dissect_nat_discovery },
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{ 131, "NAT-OA (draft-ietf-ipsec-nat-t-ike-01 to 04)", dissect_nat_original_address },
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};
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static struct payload_func v2_plfunc[] = {
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{ 2, "Proposal", dissect_proposal },
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{ 3, "Transform", dissect_transform2 },
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{ 33, "Security Association", dissect_sa },
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{ 34, "Key Exchange", dissect_key_exch },
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{ 35, "Identification - I", dissect_id },
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{ 36, "Identification - R", dissect_id },
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{ 37, "Certificate", dissect_cert },
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{ 38, "Certificate Request", dissect_certreq_v2},
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{ 39, "Authentication", dissect_auth },
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{ 40, "Nonce", dissect_nonce },
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{ 41, "Notification", dissect_notif },
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{ 42, "Delete", dissect_delete },
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{ 43, "Vendor ID", dissect_vid },
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{ 44, "Traffic Selector - I", dissect_ts },
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{ 45, "Traffic Selector - R", dissect_ts },
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{ 46, "Encrypted", dissect_enc },
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{ 47, "Configuration", dissect_config },
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{ 48, "Extensible Authentication", dissect_eap },
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};
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static struct payload_func * getpayload_func(guint8, int);
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#define VID_LEN 16
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#define VID_MS_LEN 20
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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 */
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#define VID_CP_LEN 20
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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};
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static const guint8 VID_CYBERGUARD[VID_LEN] = {0x9A, 0xA1, 0xF3, 0xB4, 0x34, 0x72, 0xA4, 0x5D, 0x5F, 0x50, 0x6A, 0xEB, 0x26, 0xC, 0xF2, 0x14};
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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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 */
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|
|
|
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 */
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|
|
|
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 */
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|
|
|
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-bezeqint.net
|
|
*/
|
|
static const guint8 VID_HeartBeat_Notify[VID_LEN] = {0x48, 0x65, 0x61, 0x72, 0x74, 0x42, 0x65, 0x61, 0x74, 0x5f, 0x4e, 0x6f, 0x74, 0x69, 0x66, 0x79};
|
|
|
|
void
|
|
isakmp_dissect_payloads(tvbuff_t *tvb, proto_tree *tree, int isakmp_version,
|
|
guint8 initial_payload, int offset, int length,
|
|
packet_info *pinfo)
|
|
{
|
|
dissect_payloads(tvb, tree, isakmp_version, initial_payload, offset, length,
|
|
pinfo);
|
|
}
|
|
|
|
static void
|
|
dissect_payloads(tvbuff_t *tvb, proto_tree *tree, int isakmp_version,
|
|
guint8 initial_payload, int offset, int length, packet_info *pinfo)
|
|
{
|
|
guint8 payload, next_payload;
|
|
guint16 payload_length;
|
|
proto_tree * ntree;
|
|
struct payload_func * f;
|
|
|
|
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, isakmp_version,
|
|
payload, &next_payload, &payload_length, tree);
|
|
if (ntree == NULL)
|
|
break;
|
|
if (payload_length >= 4) { /* XXX = > 4? */
|
|
tvb_ensure_bytes_exist(tvb, offset + 4, payload_length - 4);
|
|
if ((f = getpayload_func(payload, isakmp_version)) != NULL && f->func != NULL)
|
|
(*f->func)(tvb, offset + 4, payload_length - 4, ntree, pinfo,
|
|
isakmp_version, -1);
|
|
else {
|
|
proto_tree_add_text(ntree, tvb, offset + 4, payload_length - 4,
|
|
"Payload");
|
|
}
|
|
}
|
|
else if (payload_length > length) {
|
|
proto_tree_add_text(ntree, tvb, 0, 0,
|
|
"Payload (bogus, length is %u, greater than remaining length %d",
|
|
payload_length, length);
|
|
return;
|
|
}
|
|
else {
|
|
proto_tree_add_text(ntree, tvb, 0, 0,
|
|
"Payload (bogus, length is %u, must be at least 4)",
|
|
payload_length);
|
|
payload_length = 4;
|
|
}
|
|
offset += payload_length;
|
|
length -= payload_length;
|
|
}
|
|
}
|
|
|
|
static struct payload_func *
|
|
getpayload_func(guint8 payload, int isakmp_version)
|
|
{
|
|
struct payload_func *f = 0;
|
|
int i, len;
|
|
|
|
if (isakmp_version == 1) {
|
|
f = v1_plfunc;
|
|
len = ARLEN(v1_plfunc);
|
|
} else if (isakmp_version == 2) {
|
|
f = v2_plfunc;
|
|
len = ARLEN(v2_plfunc);
|
|
} else
|
|
return NULL;
|
|
for (i = 0; i < len; i++) {
|
|
if (f[i].type == payload)
|
|
return &f[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
dissect_isakmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
int offset = 0, len;
|
|
struct isakmp_hdr hdr;
|
|
proto_item * ti;
|
|
proto_tree * isakmp_tree = NULL;
|
|
int isakmp_version;
|
|
|
|
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);
|
|
}
|
|
|
|
/* RFC3948 2.3 NAT Keepalive packet:
|
|
* 1 byte payload with the value 0xff.
|
|
*/
|
|
if( (tvb_length(tvb)==1) && (tvb_get_guint8(tvb, offset)==0xff) ){
|
|
if (check_col(pinfo->cinfo, COL_INFO)){
|
|
col_add_str(pinfo->cinfo, COL_INFO, "NAT Keepalive");
|
|
}
|
|
proto_tree_add_item(isakmp_tree, hf_ike_nat_keepalive, tvb, offset, 1, FALSE);
|
|
return;
|
|
}
|
|
|
|
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));
|
|
hdr.version = tvb_get_guint8(tvb, sizeof(hdr.icookie) + sizeof(hdr.rcookie) + sizeof(hdr.next_payload));
|
|
isakmp_version = hi_nibble(hdr.version); /* save the version */
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_add_str(pinfo->cinfo, COL_INFO,
|
|
exchtype2str(isakmp_version, 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(isakmp_version, hdr.next_payload),
|
|
hdr.next_payload);
|
|
offset += sizeof(hdr.next_payload);
|
|
|
|
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(isakmp_version, 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);
|
|
|
|
if (isakmp_version == 1) {
|
|
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr.flags, E_FLAG, sizeof(hdr.flags)*8,
|
|
"Encrypted", "Not encrypted"));
|
|
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"));
|
|
} else if (isakmp_version == 2) {
|
|
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr.flags, I_FLAG, sizeof(hdr.flags)*8,
|
|
"Initiator", "Responder"));
|
|
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr.flags, V_FLAG, sizeof(hdr.flags)*8,
|
|
"A higher version enabled", ""));
|
|
proto_tree_add_text(ftree, tvb, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr.flags, R_FLAG, sizeof(hdr.flags)*8,
|
|
"Response", "Request"));
|
|
}
|
|
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;
|
|
}
|
|
|
|
len = hdr.length - sizeof(hdr);
|
|
|
|
if (len < 0) {
|
|
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.length),
|
|
"Length: (bogus, length is %u, which is too large)",
|
|
hdr.length);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_text(isakmp_tree, tvb, offset, sizeof(hdr.length),
|
|
"Length: %u", hdr.length);
|
|
offset += sizeof(hdr.length);
|
|
|
|
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, isakmp_version, hdr.next_payload,
|
|
offset, len, pinfo);
|
|
}
|
|
}
|
|
|
|
static proto_tree *
|
|
dissect_payload_header(tvbuff_t *tvb, int offset, int length,
|
|
int isakmp_version, 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", payloadtype2str(isakmp_version, payload));
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, tvb, offset, 1,
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(isakmp_version, next_payload),
|
|
next_payload);
|
|
if (isakmp_version == 2) {
|
|
proto_tree_add_text(ntree, tvb, offset + 1, 1, "%s",
|
|
decode_boolean_bitfield(tvb_get_guint8(tvb, offset + 1), 0x80,
|
|
8, "Critical", "Not critical"));
|
|
}
|
|
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,
|
|
packet_info *pinfo, int isakmp_version, 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;
|
|
}
|
|
if (isakmp_version == 1) {
|
|
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, isakmp_version, LOAD_TYPE_PROPOSAL, offset,
|
|
length, pinfo);
|
|
} else {
|
|
/* Unknown */
|
|
proto_tree_add_text(tree, tvb, offset, length,
|
|
"Situation: %s",
|
|
tvb_bytes_to_str(tvb, offset, length));
|
|
}
|
|
} else if (isakmp_version == 2) {
|
|
dissect_payloads(tvb, tree, isakmp_version, LOAD_TYPE_PROPOSAL, offset,
|
|
length, pinfo);
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_proposal(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version, 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)",
|
|
val_to_str(protocol_id, vs_proto, "UNKNOWN-PROTO-TYPE"), 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, isakmp_version,
|
|
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) {
|
|
if (isakmp_version == 1)
|
|
dissect_transform(tvb, offset + 4, payload_length - 4, ntree,
|
|
pinfo, isakmp_version, protocol_id);
|
|
else if (isakmp_version == 2)
|
|
dissect_transform2(tvb, offset + 4, payload_length - 4, ntree,
|
|
pinfo, isakmp_version, 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,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int protocol_id)
|
|
{
|
|
static const value_string vs_v1_attr[] = {
|
|
{ 1, "Encryption-Algorithm" },
|
|
{ 2, "Hash-Algorithm" },
|
|
{ 3, "Authentication-Method" },
|
|
{ 4, "Group-Description" },
|
|
{ 5, "Group-Type" },
|
|
{ 6, "Group-Prime" },
|
|
{ 7, "Group-Generator-One" },
|
|
{ 8, "Group-Generator-Two" },
|
|
{ 9, "Group-Curve-A" },
|
|
{ 10, "Group-Curve-B" },
|
|
{ 11, "Life-Type" },
|
|
{ 12, "Life-Duration" },
|
|
{ 13, "PRF" },
|
|
{ 14, "Key-Length" },
|
|
{ 15, "Field-Size" },
|
|
{ 16, "Group-Order" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v2_sttr[] = {
|
|
{ 1, "SA-Life-Type" },
|
|
{ 2, "SA-Life-Duration" },
|
|
{ 3, "Group-Description" },
|
|
{ 4, "Encapsulation-Mode" },
|
|
{ 5, "Authentication-Algorithm" },
|
|
{ 6, "Key-Length" },
|
|
{ 7, "Key-Rounds" },
|
|
{ 8, "Compress-Dictinary-Size" },
|
|
{ 9, "Compress-Private-Algorithm" },
|
|
{ 10, "ECN Tunnel" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_trans_isakmp[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "KEY_IKE" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_trans_ah[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "RESERVED" },
|
|
{ 2, "MD5" },
|
|
{ 3, "SHA" },
|
|
{ 4, "DES" },
|
|
{ 5, "SHA2-256" },
|
|
{ 6, "SHA2-384" },
|
|
{ 7, "SHA2-512" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_trans_esp[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "DES-IV64" },
|
|
{ 2, "DES" },
|
|
{ 3, "3DES" },
|
|
{ 4, "RC5" },
|
|
{ 5, "IDEA" },
|
|
{ 6, "CAST" },
|
|
{ 7, "BLOWFISH" },
|
|
{ 8, "3IDEA" },
|
|
{ 9, "DES-IV32" },
|
|
{ 10, "RC4" },
|
|
{ 11, "NULL" },
|
|
{ 12, "AES" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_trans_ipcomp[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "OUI" },
|
|
{ 2, "DEFLATE" },
|
|
{ 3, "LZS" },
|
|
{ 4, "LZJH" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
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)",
|
|
val_to_str(transform_id, vs_v1_trans_isakmp, "UNKNOWN-TRANS-TYPE"), transform_id);
|
|
break;
|
|
case 2: /* AH */
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Transform ID: %s (%u)",
|
|
val_to_str(transform_id, vs_v1_trans_ah, "UNKNOWN-AH-TRANS-TYPE"), transform_id);
|
|
break;
|
|
case 3: /* ESP */
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Transform ID: %s (%u)",
|
|
val_to_str(transform_id, vs_v1_trans_esp, "UNKNOWN-ESP-TRANS-TYPE"), transform_id);
|
|
break;
|
|
case 4: /* IPCOMP */
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Transform ID: %s (%u)",
|
|
val_to_str(transform_id, vs_v1_trans_ipcomp, "UNKNOWN-IPCOMP-TRANS-TYPE"), 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 = val_to_str(type, vs_v1_attr, "UNKNOWN-ATTRIBUTE-TYPE");
|
|
}
|
|
else {
|
|
str = val_to_str(type, vs_v2_sttr, "UNKNOWN-ATTRIBUTE-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,
|
|
v1_attrval2str(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,
|
|
v1_attrval2str(ike_phase1, type, val), val);
|
|
}
|
|
offset += pack_len;
|
|
length -= pack_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* For Transform Type 1 (Encryption Algorithm), defined Transform IDs */
|
|
static const char *
|
|
v2_tid2encstr(guint16 tid)
|
|
{
|
|
static const value_string vs_v2_trans_enc[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "ENCR_DES_IV64" },
|
|
{ 2, "ENCR_DES" },
|
|
{ 3, "ENCR_3DE" },
|
|
{ 4, "ENCR_RC5" },
|
|
{ 5, "ENCR_IDEA" },
|
|
{ 6, "ENCR_CAST" },
|
|
{ 7, "ENCR_BLOWFISH" },
|
|
{ 8, "ENCR_3IDEA" },
|
|
{ 9, "ENCR_DES_IV32" },
|
|
{ 10, "RESERVED" },
|
|
{ 11, "ENCR_NULL" },
|
|
{ 12, "ENCR_AES_CBC" },
|
|
{ 13, "ENCR_AES_CTR" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
return val_to_str(tid, vs_v2_trans_enc, "UNKNOWN-ENC-ALG");
|
|
}
|
|
|
|
/* For Transform Type 2 (Pseudo-random Function), defined Transform IDs */
|
|
static const char *
|
|
v2_tid2prfstr(guint16 tid)
|
|
{
|
|
static const value_string vs_v2_trans_prf[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "PRF_HMAC_MD5" },
|
|
{ 2, "PRF_HMAC_SHA1" },
|
|
{ 3, "PRF_HMAC_TIGER" },
|
|
{ 4, "PRF_AES128_CBC" },
|
|
{ 0, NULL },
|
|
};
|
|
return val_to_str(tid, vs_v2_trans_prf, "UNKNOWN-PRF");
|
|
}
|
|
|
|
/* For Transform Type 3 (Integrity Algorithm), defined Transform IDs */
|
|
static const char *
|
|
v2_tid2iastr(guint16 tid)
|
|
{
|
|
static const value_string vs_v2_trans_integrity[] = {
|
|
{ 0, "NONE" },
|
|
{ 1, "AUTH_HMAC_MD5_96" },
|
|
{ 2, "AUTH_HMAC_SHA1_96" },
|
|
{ 3, "AUTH_DES_MAC" },
|
|
{ 4, "AUTH_KPDK_MD5" },
|
|
{ 5, "AUTH_AES_XCBC_96" },
|
|
{ 0, NULL },
|
|
};
|
|
return val_to_str(tid, vs_v2_trans_integrity, "UNKNOWN-INTEGRITY-ALG");
|
|
}
|
|
|
|
/* For Transform Type 4 (Diffie-Hellman Group), defined Transform IDs */
|
|
static const char *
|
|
v2_tid2dhstr(guint16 tid)
|
|
{
|
|
static const value_string vs_v2_trans_dhgroup[] = {
|
|
{ 0, "NONE" },
|
|
{ 1, "Group 1 - 768 Bit MODP" },
|
|
{ 2, "Group 2 - 1024 Bit MODP" },
|
|
{ 3, "RESERVED" },
|
|
{ 4, "RESERVED" },
|
|
{ 5, "group 5 - 1536 Bit MODP" },
|
|
{ 14, "2048-bit MODP Group" },
|
|
{ 15, "3072-bit MODP Group" },
|
|
{ 16, "4096-bit MODP Group" },
|
|
{ 17, "6144-bit MODP Group" },
|
|
{ 18, "8192-bit MODP Group" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if ((tid >= 6 && tid <= 13) || (tid >= 19 && tid <= 1023))
|
|
return "RESERVED TO IANA";
|
|
if (tid >= 1024)
|
|
return "PRIVATE USE";
|
|
return val_to_str(tid, vs_v2_trans_dhgroup, "UNKNOWN-DH-GROUP");
|
|
}
|
|
|
|
/* For Transform Type 5 (Extended Sequence Numbers), defined Transform */
|
|
static const char *
|
|
v2_tid2esnstr(guint16 tid)
|
|
{
|
|
static const value_string vs_v2_trans_esn[] = {
|
|
{ 0, "No Extended Sequence Numbers" },
|
|
{ 1, "Extended Sequence Numbers" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
return val_to_str(tid, vs_v2_trans_esn, "UNKNOWN-ESN-TYPE");
|
|
}
|
|
|
|
static struct {
|
|
const gint8 type;
|
|
const char *str;
|
|
const char *(*func)(guint16);
|
|
} v2_tid_func[] = {
|
|
{ 0, "RESERVED", NULL, },
|
|
{ 1, "Encryption Algorithm (ENCR)", v2_tid2encstr },
|
|
{ 2, "Pseudo-random Function (PRF)", v2_tid2prfstr },
|
|
{ 3, "Integrity Algorithm (INTEG)", v2_tid2iastr },
|
|
{ 4, "Diffie-Hellman Group (D-H)", v2_tid2dhstr },
|
|
{ 5, "Extended Sequence Numbers (ESN)", v2_tid2esnstr },
|
|
};
|
|
|
|
static const char *
|
|
v2_trans2str(guint8 type)
|
|
{
|
|
if (type < ARLEN(v2_tid_func)) return v2_tid_func[type].str;
|
|
if (type < 240) return "RESERVED TO IANA";
|
|
return "PRIVATE USE";
|
|
}
|
|
|
|
static const char *
|
|
v2_tid2str(guint8 type, guint16 tid)
|
|
{
|
|
if (type < ARLEN(v2_tid_func) && v2_tid_func[type].func != NULL) {
|
|
return (v2_tid_func[type].func)(tid);
|
|
}
|
|
return "RESERVED";
|
|
}
|
|
|
|
static const char *
|
|
v2_aft2str(guint16 aft)
|
|
{
|
|
if (aft < 14 || (aft > 14 && aft < 18)) return "RESERVED";
|
|
if (aft == 14) return "Key Length (in bits)";
|
|
if (aft >= 18 && aft < 16384) return "RESERVED TO IANA";
|
|
return "PRIVATE USE";
|
|
}
|
|
|
|
static void
|
|
dissect_transform2(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
guint8 transform_type;
|
|
guint16 transform_id;
|
|
|
|
transform_type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Transform type: %s (%u)", v2_trans2str(transform_type), transform_type);
|
|
offset += 2;
|
|
length -= 2;
|
|
|
|
transform_id = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"Transform ID: %s (%u)", v2_tid2str(transform_type, transform_id),
|
|
transform_id);
|
|
offset += 2;
|
|
length -= 2;
|
|
|
|
while (length>0) {
|
|
const char *str;
|
|
guint16 aft = tvb_get_ntohs(tvb, offset);
|
|
guint16 type = aft & 0x7fff;
|
|
guint16 len;
|
|
guint32 val;
|
|
guint pack_len;
|
|
|
|
str = v2_aft2str(aft);
|
|
|
|
if (aft & 0x8000) {
|
|
val = tvb_get_ntohs(tvb, offset + 2);
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s (%u): %s (%u)",
|
|
str, type,
|
|
v2_attrval2str(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,
|
|
v2_attrval2str(type, val), val);
|
|
}
|
|
offset += pack_len;
|
|
length -= pack_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_key_exch(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version, int unused _U_)
|
|
{
|
|
guint16 dhgroup;
|
|
|
|
if (isakmp_version == 2) {
|
|
dhgroup = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"DH Group #: %u", dhgroup);
|
|
offset += 4;
|
|
length -= 4;
|
|
}
|
|
|
|
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,
|
|
packet_info *pinfo, int isakmp_version, 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(isakmp_version, 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;
|
|
case 9:
|
|
dissect_x509if_Name(FALSE, tvb, offset, pinfo, tree,
|
|
hf_ike_certificate_authority);
|
|
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,
|
|
packet_info *pinfo _U_, int isakmp_version, 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(isakmp_version, cert_enc));
|
|
offset += 1;
|
|
length -= 1;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length, "Certificate Data");
|
|
}
|
|
|
|
static void
|
|
dissect_certreq_v1(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo, int isakmp_version, 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(isakmp_version, cert_type));
|
|
offset += 1;
|
|
length -= 1;
|
|
|
|
if (length) {
|
|
if (cert_type == 4){
|
|
dissect_x509if_Name(FALSE, tvb, offset, pinfo, tree, hf_ike_certificate_authority);
|
|
} else {
|
|
proto_tree_add_text(tree, tvb, offset, length, "Certificate Authority");
|
|
}
|
|
}
|
|
else
|
|
proto_tree_add_text(tree, tvb, offset, length, "Certificate Authority (empty)");
|
|
}
|
|
|
|
static void
|
|
dissect_certreq_v2(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version, 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(isakmp_version, cert_type));
|
|
offset += 1;
|
|
length -= 1;
|
|
|
|
/* this is a list of 20 byte SHA-1 hashes */
|
|
while (length > 0) {
|
|
proto_tree_add_item(tree, hf_ike_v2_certificate_authority, tvb, offset, 20, FALSE);
|
|
length-=20;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_hash(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, length, "Hash Data");
|
|
}
|
|
|
|
static void
|
|
dissect_auth(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
guint8 auth;
|
|
|
|
auth = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Auth Method: %s (%u)", v2_auth2str(auth), auth);
|
|
offset += 4;
|
|
length -= 4;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length, "Authentication Data");
|
|
}
|
|
|
|
static void
|
|
dissect_sig(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, 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,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, length, "Nonce Data");
|
|
}
|
|
|
|
static const char *
|
|
v2_ipcomptype2str(guint8 type)
|
|
{
|
|
static const value_string vs_v2_ipcomptype[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "IPCOMP_OUI" },
|
|
{ 2, "IPCOMP_DEFLATE" },
|
|
{ 3, "IPCOMP_LZS" },
|
|
{ 4, "IPCOMP_LZJH" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (type >= 5 && type <= 240)
|
|
return "RESERVED TO IANA";
|
|
if (type >= 241)
|
|
return "PRIVATE USE";
|
|
return val_to_str(type, vs_v2_ipcomptype, "UNKNOWN-IPCOMP-TYPE");
|
|
}
|
|
|
|
static void
|
|
dissect_notif(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version, int unused _U_)
|
|
{
|
|
guint32 doi;
|
|
guint8 protocol_id;
|
|
guint8 spi_size;
|
|
guint16 msgtype;
|
|
guint8 ipcomptype;
|
|
|
|
if (isakmp_version == 1) {
|
|
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)",
|
|
val_to_str(protocol_id, vs_proto, "UNKNOWN-PROTO-TYPE"), 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(isakmp_version, 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");
|
|
|
|
/* notification data */
|
|
if (isakmp_version == 2 && msgtype == 16387) {
|
|
/* IPCOMP_SUPPORTED */
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"IPComp CPI (%u)", tvb_get_ntohs(tvb, offset));
|
|
ipcomptype = tvb_get_guint8(tvb, offset + 2);
|
|
proto_tree_add_text(tree, tvb, offset + 2, 1,
|
|
"Transform ID: %s (%u)",
|
|
v2_ipcomptype2str(ipcomptype), ipcomptype);
|
|
offset += 3;
|
|
length -= 3;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_delete(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, 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)",
|
|
val_to_str(protocol_id, vs_proto, "UNKNOWN-PROTO-TYPE"), 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,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, 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, sizeof(CPversion), "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;
|
|
}
|
|
offset += sizeof(CPversion);
|
|
proto_tree_add_text(ntree, tvb, offset, length - VID_CP_LEN - sizeof(CPproduct) - sizeof(CPversion),"Check Point Vendor ID parameters");
|
|
}
|
|
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,
|
|
packet_info *pinfo _U_, int isakmp_version, int unused _U_)
|
|
{
|
|
guint8 type;
|
|
|
|
if (isakmp_version == 1) {
|
|
type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Type %s (%u)",
|
|
cfgtype2str(isakmp_version, 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;
|
|
} else if (isakmp_version == 2) {
|
|
type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"CFG Type %s (%u)",
|
|
cfgtype2str(isakmp_version, type), type);
|
|
offset += 4;
|
|
length -= 4;
|
|
}
|
|
|
|
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)",
|
|
cfgattr2str(isakmp_version, 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)>",
|
|
cfgattr2str(isakmp_version, type), len);
|
|
} else {
|
|
proto_tree_add_text(tree, tvb, offset, 4,
|
|
"%s (%ue)",
|
|
cfgattr2str(isakmp_version, type), val);
|
|
}
|
|
offset += pack_len;
|
|
length -= pack_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_nat_discovery(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, 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,
|
|
packet_info *pinfo _U_, int isakmp_version, 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(isakmp_version, 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 void
|
|
dissect_ts(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
guint8 num, tstype, protocol_id, addrlen;
|
|
guint16 len, port;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length, "Traffic Selector");
|
|
|
|
num = tvb_get_guint8(tvb, offset);
|
|
proto_item_append_text(tree," # %d", num);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Number of TSs: %u", num);
|
|
offset += 4;
|
|
length -= 4;
|
|
|
|
while (length > 0) {
|
|
tstype = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"TS Type: %s (%u)",
|
|
v2_tstype2str(tstype), tstype);
|
|
switch (tstype) {
|
|
case 7:
|
|
addrlen = 4;
|
|
break;
|
|
case 8:
|
|
addrlen = 16;
|
|
break;
|
|
default:
|
|
addrlen = 255;
|
|
}
|
|
/*
|
|
* XXX should the remaining of the length check be done here ?
|
|
* it seems other routines don't check the length.
|
|
*/
|
|
if (length < (8 + addrlen * 2)) {
|
|
proto_tree_add_text(tree, tvb, offset, length,
|
|
"Length mismatch (%u)", length);
|
|
return;
|
|
}
|
|
offset += 1;
|
|
length -= 1;
|
|
|
|
protocol_id = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 1,
|
|
"Protocol ID: (%u)", protocol_id);
|
|
offset += 1;
|
|
length -= 1;
|
|
|
|
len = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"Selector Length: %u", len);
|
|
offset += 2;
|
|
length -= 2;
|
|
|
|
port = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"Start Port: (%u)", port);
|
|
offset += 2;
|
|
length -= 2;
|
|
|
|
port = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_text(tree, tvb, offset, 2,
|
|
"End Port: (%u)", port);
|
|
offset += 2;
|
|
length -= 2;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length,
|
|
"Starting Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, offset, addrlen)));
|
|
offset += addrlen;
|
|
length -= addrlen;
|
|
|
|
proto_tree_add_text(tree, tvb, offset, length,
|
|
"Starting Address: %s",
|
|
ip_to_str(tvb_get_ptr(tvb, offset, addrlen)));
|
|
offset += addrlen;
|
|
length -= addrlen;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_enc(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, 4, "Initialization Vector: 0x%s",
|
|
tvb_bytes_to_str(tvb, offset, 4));
|
|
proto_tree_add_text(tree, tvb, offset + 4, length, "Encrypted Data");
|
|
}
|
|
|
|
static void
|
|
dissect_eap(tvbuff_t *tvb, int offset, int length, proto_tree *tree,
|
|
packet_info *pinfo _U_, int isakmp_version _U_, int unused _U_)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, length, "EAP Message");
|
|
}
|
|
|
|
static const char *
|
|
payloadtype2str(int isakmp_version, guint8 type)
|
|
{
|
|
struct payload_func *f;
|
|
|
|
if ((f = getpayload_func(type, isakmp_version)) != NULL)
|
|
return f->str;
|
|
|
|
if (isakmp_version == 1) {
|
|
if (type < 128)
|
|
return "RESERVED";
|
|
return "Private USE";
|
|
} else if (isakmp_version == 2) {
|
|
if (type > 127)
|
|
return "PRIVATE USE";
|
|
if (type > 48)
|
|
return "RESERVED TO IANA";
|
|
return "RESERVED";
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
static const char *
|
|
exchtype2str(int isakmp_version, guint8 type)
|
|
{
|
|
static const value_string vs_v1_exchange[] = {
|
|
{ 0, "NONE" },
|
|
{ 1, "Base" },
|
|
{ 2, "Identity Protection (Main Mode)" },
|
|
{ 3, "Authentication Only" },
|
|
{ 4, "Aggressive" },
|
|
{ 5, "Informational" },
|
|
{ 6, "Transaction (Config Mode)" },
|
|
{ 32, "Quick Mode" },
|
|
{ 33, "New Group Mode" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v2_exchange[] = {
|
|
{ 34, "IKE_SA_INIT" },
|
|
{ 35, "IKE_AUTH " },
|
|
{ 36, "CREATE_CHILD_SA" },
|
|
{ 37, "INFORMATIONAL" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (isakmp_version == 1) {
|
|
if (type > 6 && type < 32)
|
|
return "ISAKMP Future Use";
|
|
if (type > 33 && type < 240)
|
|
return "DOI Specific Use";
|
|
return val_to_str(type, vs_v1_exchange, "Private Use");
|
|
} else if (isakmp_version == 2) {
|
|
if (type < 34)
|
|
return "RESERVED";
|
|
if (type > 37 && type < 240)
|
|
return "Reserved for IKEv2+";
|
|
return val_to_str(type, vs_v2_exchange, "Reserved for private use");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
static const char *
|
|
doitype2str(guint32 type)
|
|
{
|
|
if (type == 1) return "IPSEC";
|
|
return "Unknown DOI Type";
|
|
}
|
|
|
|
static const char *
|
|
msgtype2str(int isakmp_version, guint16 type)
|
|
{
|
|
static const value_string vs_v1_notifmsg[] = {
|
|
{ 0, "<UNKNOWN>" },
|
|
{ 1, "INVALID-PAYLOAD-TYPE" },
|
|
{ 2, "DOI-NOT-SUPPORTED" },
|
|
{ 3, "SITUATION-NOT-SUPPORTED" },
|
|
{ 4, "INVALID-COOKIE" },
|
|
{ 5, "INVALID-MAJOR-VERSION" },
|
|
{ 6, "INVALID-MINOR-VERSION" },
|
|
{ 7, "INVALID-EXCHANGE-TYPE" },
|
|
{ 8, "INVALID-FLAGS" },
|
|
{ 9, "INVALID-MESSAGE-ID" },
|
|
{ 10, "INVALID-PROTOCOL-ID" },
|
|
{ 11, "INVALID-SPI" },
|
|
{ 12, "INVALID-TRANSFORM-ID" },
|
|
{ 13, "ATTRIBUTES-NOT-SUPPORTED" },
|
|
{ 14, "NO-PROPOSAL-CHOSEN" },
|
|
{ 15, "BAD-PROPOSAL-SYNTAX" },
|
|
{ 16, "PAYLOAD-MALFORMED" },
|
|
{ 17, "INVALID-KEY-INFORMATION" },
|
|
{ 18, "INVALID-ID-INFORMATION" },
|
|
{ 19, "INVALID-CERT-ENCODING" },
|
|
{ 20, "INVALID-CERTIFICATE" },
|
|
{ 21, "CERT-TYPE-UNSUPPORTED" },
|
|
{ 22, "INVALID-CERT-AUTHORITY" },
|
|
{ 23, "INVALID-HASH-INFORMATION" },
|
|
{ 24, "AUTHENTICATION-FAILED" },
|
|
{ 25, "INVALID-SIGNATURE" },
|
|
{ 26, "ADDRESS-NOTIFICATION" },
|
|
{ 27, "NOTIFY-SA-LIFETIME" },
|
|
{ 28, "CERTIFICATE-UNAVAILABLE" },
|
|
{ 29, "UNSUPPORTED-EXCHANGE-TYPE" },
|
|
{ 30, "UNEQUAL-PAYLOAD-LENGTHS" },
|
|
{ 8192, "RESERVED" },
|
|
{ 16384, "CONNECTED" },
|
|
{ 24576, "RESPONDER-LIFETIME" },
|
|
{ 24577, "REPLAY-STATUS" },
|
|
{ 24578, "INITIAL-CONTACT" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v2_notifmsg[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 4, "INVALID_IKE_SPI" },
|
|
{ 5, "INVALID_MAJOR_VERSION" },
|
|
{ 7, "INVALID_SYNTAX" },
|
|
{ 9, "INVALID_MESSAGE_ID" },
|
|
{ 11, "INVALID_SPI" },
|
|
{ 14, "NO_PROPOSAL_CHOSEN" },
|
|
{ 17, "INVALID_KE_PAYLOAD" },
|
|
{ 24, "AUTHENTICATION_FAILED" },
|
|
{ 34, "SINGLE_PAIR_REQUIRED" },
|
|
{ 35, "NO_ADDITIONAL_SAS" },
|
|
{ 36, "INTERNAL_ADDRESS_FAILURE" },
|
|
{ 37, "FAILED_CP_REQUIRED" },
|
|
{ 38, "TS_UNACCEPTABLE" },
|
|
{ 39, "INVALID_SELECTORS" },
|
|
{ 16384, "INITIAL_CONTACT" },
|
|
{ 16385, "SET_WINDOW_SIZE" },
|
|
{ 16386, "ADDITIONAL_TS_POSSIBLE" },
|
|
{ 16387, "IPCOMP_SUPPORTED" },
|
|
{ 16388, "NAT_DETECTION_SOURCE_IP" },
|
|
{ 16389, "NAT_DETECTION_DESTINATION_IP" },
|
|
{ 16390, "COOKIE" },
|
|
{ 16391, "USE_TRANSPORT_MODE" },
|
|
{ 16392, "HTTP_CERT_LOOKUP_SUPPORTED" },
|
|
{ 16393, "REKEY_SA" },
|
|
{ 16394, "ESP_TFC_PADDING_NOT_SUPPORTED" },
|
|
{ 16395, "NON_FIRST_FRAGMENTS_ALSO" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (isakmp_version == 1) {
|
|
if (type > 30 && type < 8192)
|
|
return "RESERVED (Future Use)";
|
|
if (type > 8192 && type < 16384)
|
|
return "Private Use";
|
|
if (type > 16384 && type < 24576)
|
|
return "RESERVED (Future Use) - status";
|
|
if (type > 24578 && type < 32768)
|
|
return "DOI-specific codes";
|
|
if (type > 32767 && type < 40960)
|
|
return "Private Use - status";
|
|
if (type > 40959 && type < 65535)
|
|
return "RESERVED (Future Use) - status (2)";
|
|
return val_to_str(type, vs_v1_notifmsg, "UNKNOWN-NOTIFY-MESSAGE-TYPE");
|
|
} else if (isakmp_version == 2) {
|
|
if (type >= 40 && type <= 8191)
|
|
return "RESERVED TO IANA - Error types";
|
|
if (type >= 16396 && type <= 40959)
|
|
return "RESERVED TO IANA - STATUS TYPES";
|
|
if (type >= 8192 && type <= 16383)
|
|
return "Private Use - Errors";
|
|
if (type >= 40960)
|
|
return "Private Use - STATUS TYPES";
|
|
return val_to_str(type, vs_v2_notifmsg, "UNKNOWN-NOTIFY-MESSAGE-TYPE");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
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;
|
|
const char * sep = "";
|
|
int ret;
|
|
|
|
if (type & SIT_IDENTITY) {
|
|
ret = g_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 = g_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 = g_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 *
|
|
v2_attrval2str(guint16 att_type, guint32 value)
|
|
{
|
|
value = 0; /* dummy to be less warning in compiling it */
|
|
switch (att_type) {
|
|
case 14:
|
|
return "Key-Length";
|
|
default:
|
|
return "UNKNOWN-ATTRIBUTE-TYPE";
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
v1_attrval2str(int ike_p1, guint16 att_type, guint32 value)
|
|
{
|
|
static const value_string vs_v1_attrval_lttype[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "Seconds" },
|
|
{ 2, "Kilobytes" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_encap[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "Tunnel" },
|
|
{ 2, "Transport" },
|
|
{ 3, "UDP-Encapsulated-Tunnel" }, /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
|
|
{ 4, "UDP-Encapsulated-Transport" }, /* http://www.ietf.org/internet-drafts/draft-ietf-ipsec-nat-t-ike-05.txt */
|
|
{ 61440, "Check Point IPSec UDP Encapsulation" },
|
|
{ 61443, "UDP-Encapsulated-Tunnel (draft)" },
|
|
{ 61444, "UDP-Encapsulated-Transport (draft)" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_auth[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "HMAC-MD5" },
|
|
{ 2, "HMAC-SHA" },
|
|
{ 3, "DES-MAC" },
|
|
{ 4, "KPDK" },
|
|
{ 5, "HMAC-SHA2-256" },
|
|
{ 6, "HMAC-SHA2-384" },
|
|
{ 7, "HMAC-SHA2-512" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_enc[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "DES-CBC" },
|
|
{ 2, "IDEA-CBC" },
|
|
{ 3, "BLOWFISH-CBC" },
|
|
{ 4, "RC5-R16-B64-CBC" },
|
|
{ 5, "3DES-CBC" },
|
|
{ 6, "CAST-CBC" },
|
|
{ 7, "AES-CBC" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_hash[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "MD5" },
|
|
{ 2, "SHA" },
|
|
{ 3, "TIGER" },
|
|
{ 4, "SHA2-256" },
|
|
{ 5, "SHA2-384" },
|
|
{ 6, "SHA2-512" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_authmeth[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "PSK" },
|
|
{ 2, "DSS-SIG" },
|
|
{ 3, "RSA-SIG" },
|
|
{ 4, "RSA-ENC" },
|
|
{ 5, "RSA-Revised-ENC" },
|
|
{ 6, "Encryption with El-Gamal" },
|
|
{ 7, "Revised encryption with El-Gamal" },
|
|
{ 8, "ECDSA signatures" },
|
|
{ 9, "AES-XCBC-MAC" },
|
|
{ 64221, "HybridInitRSA" },
|
|
{ 64222, "HybridRespRSA" },
|
|
{ 64223, "HybridInitDSS" },
|
|
{ 64224, "HybridRespDSS" },
|
|
{ 65001, "XAUTHInitPreShared" },
|
|
{ 65002, "XAUTHRespPreShared" },
|
|
{ 65003, "XAUTHInitDSS" },
|
|
{ 65004, "XAUTHRespDSS" },
|
|
{ 65005, "XAUTHInitRSA" },
|
|
{ 65006, "XAUTHRespRSA" },
|
|
{ 65007, "XAUTHInitRSAEncryption" },
|
|
{ 65008, "XAUTHRespRSAEncryption" },
|
|
{ 65009, "XAUTHInitRSARevisedEncryption" },
|
|
{ 65010, "XAUTHRespRSARevisedEncryption" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_grpdesc[] = {
|
|
{ 0, "UNDEFINED - 0" },
|
|
{ 1, "Default 768-bit MODP group" },
|
|
{ 2, "Alternate 1024-bit MODP group" },
|
|
{ 3, "EC2N group on GP[2^155] group" },
|
|
{ 4, "EC2N group on GP[2^185] group" },
|
|
{ 5, "1536 bit MODP group" },
|
|
{ 6, "EC2N group over GF[2^163]" },
|
|
{ 7, "EC2N group over GF[2^163]" },
|
|
{ 8, "EC2N group over GF[2^283]" },
|
|
{ 9, "EC2N group over GF[2^283]" },
|
|
{ 10, "EC2N group over GF[2^409]" },
|
|
{ 11, "EC2N group over GF[2^409]" },
|
|
{ 12, "EC2N group over GF[2^571]" },
|
|
{ 13, "EC2N group over GF[2^571]" },
|
|
{ 14, "2048 bit MODP group" },
|
|
{ 15, "3072 bit MODP group" },
|
|
{ 16, "4096 bit MODP group" },
|
|
{ 17, "6144 bit MODP group" },
|
|
{ 18, "8192 bit MODP group" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_grptype[] = {
|
|
{ 0, "UNDEFINED - 0" },
|
|
{ 1, "MODP" },
|
|
{ 2, "ECP" },
|
|
{ 3, "EC2N" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v1_attrval_lifetype[] = {
|
|
{ 0, "UNDEFINED - 0" },
|
|
{ 1, "Seconds" },
|
|
{ 2, "Kilobytes" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (value == 0) return "RESERVED";
|
|
|
|
if (!ike_p1) {
|
|
switch (att_type) {
|
|
case 1:
|
|
return val_to_str(value, vs_v1_attrval_lttype, "UNKNOWN-LIFETIME-TYPE");
|
|
case 2:
|
|
return "Duration-Value";
|
|
case 3:
|
|
return "Group-Value";
|
|
case 4:
|
|
return val_to_str(value, vs_v1_attrval_encap, "UNKNOWN-ENCAPSULATION-VALUE");
|
|
case 5:
|
|
return val_to_str(value, vs_v1_attrval_auth, "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:
|
|
return val_to_str(value, vs_v1_attrval_enc, "UNKNOWN-ENCRYPTION-ALG");
|
|
case 2:
|
|
return val_to_str(value, vs_v1_attrval_hash, "UNKNOWN-HASH-ALG");
|
|
case 3:
|
|
return val_to_str(value, vs_v1_attrval_authmeth, "UNKNOWN-AUTH-METHOD");
|
|
case 4:
|
|
return val_to_str(value, vs_v1_attrval_grpdesc, "UNKNOWN-GROUP-DESCRIPTION");
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
case 10:
|
|
case 16:
|
|
return "Group-Value";
|
|
case 5:
|
|
return val_to_str(value, vs_v1_attrval_grptype, "UNKNOWN-GROUP-TYPE");
|
|
case 11:
|
|
return val_to_str(value, vs_v1_attrval_lifetype, "UNKNOWN-LIFE-TYPE");
|
|
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 *
|
|
cfgtype2str(int isakmp_version, guint8 type)
|
|
{
|
|
static const value_string vs_v1_cfgtype[] = {
|
|
{ 0, "Reserved" },
|
|
{ 1, "ISAKMP_CFG_REQUEST" },
|
|
{ 2, "ISAKMP_CFG_REPLY" },
|
|
{ 3, "ISAKMP_CFG_SET" },
|
|
{ 4, "ISAKMP_CFG_ACK" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
#if 0
|
|
static const value_string vs_v2_cfgtype[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "CFG_REQUEST" },
|
|
{ 2, "CFG_REPLY" },
|
|
{ 3, "CFG_SET" },
|
|
{ 4, "CFG_ACK" },
|
|
{ 0, NULL },
|
|
};
|
|
#endif
|
|
|
|
if (isakmp_version == 1) {
|
|
if (type >= 5 && type <= 127)
|
|
return "Future use";
|
|
if (type >= 128)
|
|
return "Private Use";
|
|
return val_to_str(type, vs_v1_cfgtype, "UNKNOWN-CFG-TYPE");
|
|
} else if (isakmp_version == 2) {
|
|
if (type >= 5 && type <= 127)
|
|
return "RESERVED TO IANA";
|
|
if (type >= 128)
|
|
return "PRIVATE USE";
|
|
return val_to_str(type, vs_v1_cfgtype, "UNKNOWN-CFG-TYPE");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
static const char *
|
|
id2str(int isakmp_version, guint8 type)
|
|
{
|
|
static const value_string vs_v1_ident[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "IPV4_ADDR" },
|
|
{ 2, "FQDN" },
|
|
{ 3, "USER_FQDN" },
|
|
{ 4, "IPV4_ADDR_SUBNET" },
|
|
{ 5, "IPV6_ADDR" },
|
|
{ 6, "IPV6_ADDR_SUBNET" },
|
|
{ 7, "IPV4_ADDR_RANGE" },
|
|
{ 8, "IPV6_ADDR_RANGE" },
|
|
{ 9, "DER_ASN1_DN" },
|
|
{ 10, "DER_ASN1_GN" },
|
|
{ 11, "KEY_ID" },
|
|
{ 0, NULL },
|
|
};
|
|
static const value_string vs_v2_ident[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "IPV4_ADDR" },
|
|
{ 2, "FQDN" },
|
|
{ 3, "USER_FQDN" },
|
|
{ 4, "IPV4_ADDR_SUBNET" },
|
|
{ 5, "IPV6_ADDR" },
|
|
{ 9, "DER_ASN1_DN" },
|
|
{ 10, "DER_ASN1_GN" },
|
|
{ 11, "KEY_ID" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (isakmp_version == 1)
|
|
return val_to_str(type, vs_v1_ident, "UNKNOWN-ID-TYPE");
|
|
else if (isakmp_version == 2) {
|
|
if ((type >= 6 && type <=8) || (type >= 12 && type <= 200))
|
|
return "Reserved to IANA";
|
|
if (type >= 201)
|
|
return "Reserved for private use";
|
|
return val_to_str(type, vs_v2_ident, "UNKNOWN-ID-TYPE");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
static const char *
|
|
v2_tstype2str(guint8 type)
|
|
{
|
|
static const value_string vs_v2_tstype[] = {
|
|
{ 7, "TS_IPV4_ADDR_RANGE" },
|
|
{ 8, "TS_IPV6_ADDR_RANGE" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (type <= 6)
|
|
return "RESERVED";
|
|
if (type >= 9 && type <= 240)
|
|
return "RESERVED TO IANA";
|
|
if (type >= 241)
|
|
return "PRIVATE USE";
|
|
return val_to_str(type, vs_v2_tstype, "UNKNOWN-TS-TYPE");
|
|
}
|
|
|
|
static const char *
|
|
v2_auth2str(guint8 type)
|
|
{
|
|
static const value_string vs_v2_authmeth[] = {
|
|
{ 0, "RESERVED TO IANA" },
|
|
{ 1, "RSA Digital Signature" },
|
|
{ 2, "Shared Key Message Integrity Code" },
|
|
{ 3, "DSS Digital Signature" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (type >= 4 && type <= 200)
|
|
return "RESERVED TO IANA";
|
|
if (type >= 201)
|
|
return "PRIVATE USE";
|
|
return val_to_str(type, vs_v2_authmeth, "UNKNOWN-AUTHMETHOD-TYPE");
|
|
}
|
|
|
|
static const char *
|
|
cfgattr2str(int isakmp_version, guint16 ident)
|
|
{
|
|
static const value_string vs_v1_cfgattr[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "INTERNAL_IP4_ADDRESS" },
|
|
{ 2, "INTERNAL_IP4_NETMASK" },
|
|
{ 3, "INTERNAL_IP4_DNS" },
|
|
{ 4, "INTERNAL_IP4_NBNS" },
|
|
{ 5, "INTERNAL_ADDRESS_EXPIREY" },
|
|
{ 6, "INTERNAL_IP4_DHCP" },
|
|
{ 7, "APPLICATION_VERSION" },
|
|
{ 8, "INTERNAL_IP6_ADDRESS" },
|
|
{ 9, "INTERNAL_IP6_NETMASK" },
|
|
{ 10, "INTERNAL_IP6_DNS" },
|
|
{ 11, "INTERNAL_IP6_NBNS" },
|
|
{ 12, "INTERNAL_IP6_DHCP" },
|
|
{ 13, "INTERNAL_IP4_SUBNET" },
|
|
{ 14, "SUPPORTED_ATTRIBUTES" },
|
|
{ 16520, "XAUTH_TYPE" },
|
|
{ 16521, "XAUTH_USER_NAME" },
|
|
{ 16522, "XAUTH_USER_PASSWORD" },
|
|
{ 16523, "XAUTH_PASSCODE" },
|
|
{ 16524, "XAUTH_MESSAGE" },
|
|
{ 16525, "XAUTH_CHALLANGE" },
|
|
{ 16526, "XAUTH_DOMAIN" },
|
|
{ 16527, "XAUTH_STATUS" },
|
|
{ 16528, "XAUTH_NEXT_PIN" },
|
|
{ 16529, "XAUTH_ANSWER" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v2_cfgattr[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "INTERNAL_IP4_ADDRESS" },
|
|
{ 2, "INTERNAL_IP4_NETMASK" },
|
|
{ 3, "INTERNAL_IP4_DNS" },
|
|
{ 4, "INTERNAL_IP4_NBNS" },
|
|
{ 5, "INTERNAL_ADDRESS_EXPIREY" },
|
|
{ 6, "INTERNAL_IP4_DHCP" },
|
|
{ 7, "APPLICATION_VERSION" },
|
|
{ 8, "INTERNAL_IP6_ADDRESS" },
|
|
{ 9, "RESERVED" },
|
|
{ 10, "INTERNAL_IP6_DNS" },
|
|
{ 11, "INTERNAL_IP6_NBNS" },
|
|
{ 12, "INTERNAL_IP6_DHCP" },
|
|
{ 13, "INTERNAL_IP4_SUBNET" },
|
|
{ 14, "SUPPORTED_ATTRIBUTES" },
|
|
{ 15, "INTERNAL_IP6_SUBNET" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (isakmp_version == 1) {
|
|
if (ident >= 15 && ident <= 16383)
|
|
return "Future use";
|
|
if (ident >= 16384 && ident <= 16519)
|
|
return "PRIVATE USE";
|
|
if (ident >= 16530 && ident <= 32767)
|
|
return "PRIVATE USE";
|
|
return val_to_str(ident, vs_v1_cfgattr, "UNKNOWN-CFG-ATTRIBUTE");
|
|
} else if (isakmp_version == 2) {
|
|
if (ident >= 16 && ident <= 16383)
|
|
return "RESERVED TO IANA";
|
|
if (ident >= 16384 && ident <= 32767)
|
|
return "PRIVATE USE";
|
|
return val_to_str(ident, vs_v2_cfgattr, "UNKNOWN-CFG-ATTRIBUTE");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
static const char *
|
|
certtype2str(int isakmp_version, guint8 type)
|
|
{
|
|
static const value_string vs_v1_certtype[] = {
|
|
{ 0, "NONE" },
|
|
{ 1, "PKCS #7 wrapped X.509 certificate" },
|
|
{ 2, "PGP Certificate" },
|
|
{ 3, "DNS Signed Key" },
|
|
{ 4, "X.509 Certificate - Signature" },
|
|
{ 5, "X.509 Certificate - Key Exchange" },
|
|
{ 6, "Kerberos Tokens" },
|
|
{ 7, "Certificate Revocation List (CRL)" },
|
|
{ 8, "Authority Revocation List (ARL)" },
|
|
{ 9, "SPKI Certificate" },
|
|
{ 10, "X.509 Certificate - Attribute" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static const value_string vs_v2_certtype[] = {
|
|
{ 0, "RESERVED" },
|
|
{ 1, "PKCS #7 wrapped X.509 certificate" },
|
|
{ 2, "PGP Certificate" },
|
|
{ 3, "DNS Signed Key" },
|
|
{ 4, "X.509 Certificate - Signature" },
|
|
{ 5, "*undefined by any document*" },
|
|
{ 6, "Kerberos Tokens" },
|
|
{ 7, "Certificate Revocation List (CRL)" },
|
|
{ 8, "Authority Revocation List (ARL)" },
|
|
{ 9, "SPKI Certificate" },
|
|
{ 10, "X.509 Certificate - Attribute" },
|
|
{ 11, "Raw RSA Key" },
|
|
{ 12, "Hash and URL of X.509 certificate" },
|
|
{ 13, "Hash and URL of X.509 bundle" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
if (isakmp_version == 1)
|
|
return val_to_str(type, vs_v1_certtype, "RESERVED");
|
|
else if (isakmp_version == 2) {
|
|
if (type >= 14 && type <= 200)
|
|
return "RESERVED to IANA";
|
|
if (type >= 201)
|
|
return "PRIVATE USE";
|
|
return val_to_str(type, vs_v2_certtype, "RESERVED");
|
|
}
|
|
return "UNKNOWN-ISAKMP-VERSION";
|
|
}
|
|
|
|
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[] = {
|
|
{ &hf_ike_certificate_authority,
|
|
{ "Certificate Authority Distinguished Name", "ike.cert_authority_dn", FT_UINT32, BASE_DEC, NULL, 0x0, "Certificate Authority Distinguished Name", HFILL }
|
|
},
|
|
{ &hf_ike_v2_certificate_authority,
|
|
{ "Certificate Authority", "ike.cert_authority", FT_BYTES, BASE_HEX, NULL, 0x0, "SHA-1 hash of the Certificate Authority", HFILL }
|
|
},
|
|
{ &hf_ike_nat_keepalive,
|
|
{ "NAT Keepalive", "ike.nat_keepalive", FT_NONE, BASE_HEX, NULL, 0x0, "NAT Keepalive packet", HFILL }
|
|
},
|
|
};
|
|
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);
|
|
}
|