forked from osmocom/wireshark
f9daf4932d
malformed packets. svn path=/trunk/; revision=2480
1454 lines
43 KiB
C
1454 lines
43 KiB
C
/* packet-isakmp.c
|
|
* Routines for the Internet Security Association and Key Management Protocol
|
|
* (ISAKMP) (RFC 2408)
|
|
* Brad Robel-Forrest <brad.robel-forrest@watchguard.com>
|
|
*
|
|
* $Id: packet-isakmp.c,v 1.29 2000/10/07 06:58:24 guy Exp $
|
|
*
|
|
* Ethereal - Network traffic analyzer
|
|
* By Gerald Combs <gerald@zing.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
# include <sys/types.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
#ifdef HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
|
|
#include <glib.h>
|
|
|
|
#ifdef NEED_SNPRINTF_H
|
|
# include "snprintf.h"
|
|
#endif
|
|
|
|
#include "packet.h"
|
|
|
|
static int proto_isakmp = -1;
|
|
|
|
static gint ett_isakmp = -1;
|
|
static gint ett_isakmp_flags = -1;
|
|
static gint ett_isakmp_payload = -1;
|
|
|
|
#define UDP_PORT_ISAKMP 500
|
|
|
|
#define NUM_PROTO_TYPES 5
|
|
#define proto2str(t) \
|
|
((t < NUM_PROTO_TYPES) ? prototypestr[t] : "UNKNOWN-PROTO-TYPE")
|
|
|
|
static const char *prototypestr[NUM_PROTO_TYPES] = {
|
|
"RESERVED",
|
|
"ISAKMP",
|
|
"IPSEC_AH",
|
|
"IPSEC_ESP",
|
|
"IPCOMP"
|
|
};
|
|
|
|
#define NUM_P1_ATT_TYPES 17
|
|
#define p1_atttype2str(t) \
|
|
((t < NUM_P1_ATT_TYPES) ? p1_atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
|
|
|
|
static const char *p1_atttypestr[NUM_P1_ATT_TYPES] = {
|
|
"UNKNOWN-ATTRIBUTE-TYPE",
|
|
"Encryption-Algorithm",
|
|
"Hash-Algorithm",
|
|
"Authentication-Method",
|
|
"Group-Description",
|
|
"Group-Type",
|
|
"Group-Prime",
|
|
"Group-Generator-One",
|
|
"Group-Generator-Two",
|
|
"Group-Curve-A",
|
|
"Group-Curve-B",
|
|
"Life-Type",
|
|
"Life-Duration",
|
|
"PRF",
|
|
"Key-Length",
|
|
"Field-Size",
|
|
"Group-Order"
|
|
};
|
|
|
|
#define NUM_ATT_TYPES 11
|
|
#define atttype2str(t) \
|
|
((t < NUM_ATT_TYPES) ? atttypestr[t] : "UNKNOWN-ATTRIBUTE-TYPE")
|
|
|
|
static const char *atttypestr[NUM_ATT_TYPES] = {
|
|
"UNKNOWN-ATTRIBUTE-TYPE",
|
|
"SA-Life-Type",
|
|
"SA-Life-Duration",
|
|
"Group-Description",
|
|
"Encapsulation-Mode",
|
|
"Authentication-Algorithm",
|
|
"Key-Length",
|
|
"Key-Rounds",
|
|
"Compress-Dictinary-Size",
|
|
"Compress-Private-Algorithm",
|
|
"ECN Tunnel"
|
|
};
|
|
|
|
#define NUM_TRANS_TYPES 2
|
|
#define trans2str(t) \
|
|
((t < NUM_TRANS_TYPES) ? transtypestr[t] : "UNKNOWN-TRANS-TYPE")
|
|
|
|
static const char *transtypestr[NUM_TRANS_TYPES] = {
|
|
"RESERVED",
|
|
"KEY_IKE"
|
|
};
|
|
|
|
#define NUM_AH_TRANS_TYPES 8
|
|
#define ah_trans2str(t) \
|
|
((t < NUM_AH_TRANS_TYPES) ? ah_transtypestr[t] : "UNKNOWN-AH-TRANS-TYPE")
|
|
|
|
static const char *ah_transtypestr[NUM_AH_TRANS_TYPES] = {
|
|
"RESERVED",
|
|
"RESERVED",
|
|
"MD5",
|
|
"SHA",
|
|
"DES",
|
|
"SHA2-256",
|
|
"SHA2-384",
|
|
"SHA2-512"
|
|
};
|
|
|
|
#define NUM_ESP_TRANS_TYPES 13
|
|
#define esp_trans2str(t) \
|
|
((t < NUM_ESP_TRANS_TYPES) ? esp_transtypestr[t] : "UNKNOWN-ESP-TRANS-TYPE")
|
|
|
|
static const char *esp_transtypestr[NUM_ESP_TRANS_TYPES] = {
|
|
"RESERVED",
|
|
"DES-IV64",
|
|
"DES",
|
|
"3DES",
|
|
"RC5",
|
|
"IDEA",
|
|
"CAST",
|
|
"BLOWFISH",
|
|
"3IDEA",
|
|
"DES-IV32",
|
|
"RC4",
|
|
"NULL",
|
|
"AES"
|
|
};
|
|
|
|
#define NUM_ID_TYPES 12
|
|
#define id2str(t) \
|
|
((t < NUM_ID_TYPES) ? idtypestr[t] : "UNKNOWN-ID-TYPE")
|
|
|
|
static const char *idtypestr[NUM_ID_TYPES] = {
|
|
"RESERVED",
|
|
"IPV4_ADDR",
|
|
"FQDN",
|
|
"USER_FQDN",
|
|
"IPV4_ADDR_SUBNET",
|
|
"IPV6_ADDR",
|
|
"IPV6_ADDR_SUBNET",
|
|
"IPV4_ADDR_RANGE",
|
|
"IPV6_ADDR_RANGE",
|
|
"DER_ASN1_DN",
|
|
"DER_ASN1_GN",
|
|
"KEY_ID"
|
|
};
|
|
|
|
struct isakmp_hdr {
|
|
guint8 icookie[8];
|
|
guint8 rcookie[8];
|
|
guint8 next_payload;
|
|
guint8 version;
|
|
guint8 exch_type;
|
|
guint8 flags;
|
|
#define E_FLAG 0x01
|
|
#define C_FLAG 0x02
|
|
#define A_FLAG 0x04
|
|
guint8 message_id[4];
|
|
guint8 length[4];
|
|
};
|
|
|
|
struct sa_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 doi[4];
|
|
guint8 situation[4];
|
|
};
|
|
|
|
struct proposal_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 proposal_num;
|
|
guint8 protocol_id;
|
|
guint8 spi_size;
|
|
guint8 num_transforms;
|
|
};
|
|
|
|
struct trans_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 transform_num;
|
|
guint8 transform_id;
|
|
guint8 reserved2[2];
|
|
};
|
|
|
|
#define TRANS_LEN(p) (pntohs(&((struct trans_hdr *)(p))->length))
|
|
|
|
struct ke_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
};
|
|
|
|
struct id_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 id_type;
|
|
guint8 protocol_id;
|
|
guint8 port[2];
|
|
};
|
|
|
|
struct cert_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 cert_enc;
|
|
};
|
|
|
|
struct certreq_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 cert_type;
|
|
};
|
|
|
|
struct hash_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
};
|
|
|
|
struct sig_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
};
|
|
|
|
struct nonce_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
};
|
|
|
|
struct notif_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 doi[4];
|
|
guint8 protocol_id;
|
|
guint8 spi_size;
|
|
guint8 msgtype[2];
|
|
};
|
|
|
|
struct delete_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 doi[4];
|
|
guint8 protocol_id;
|
|
guint8 spi_size;
|
|
guint8 num_spis[2];
|
|
};
|
|
|
|
struct vid_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
};
|
|
|
|
struct cfg_hdr {
|
|
guint8 next_payload;
|
|
guint8 reserved;
|
|
guint8 length[2];
|
|
guint8 type;
|
|
guint8 reserved2;
|
|
guint8 identifier[2];
|
|
};
|
|
|
|
static void dissect_none(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_sa(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_proposal(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_transform(const u_char *, int, frame_data *, proto_tree *,
|
|
guint8);
|
|
static void dissect_key_exch(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_id(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_cert(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_certreq(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_hash(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_sig(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_nonce(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_notif(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_delete(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_vid(const u_char *, int, frame_data *, proto_tree *);
|
|
static void dissect_config(const u_char *, int, frame_data *, proto_tree *);
|
|
|
|
static const char *payloadtype2str(guint8);
|
|
static const char *exchtype2str(guint8);
|
|
static const char *doitype2str(guint32);
|
|
static const char *msgtype2str(guint16);
|
|
static const char *situation2str(guint32);
|
|
static const char *value2str(int, guint16, guint16);
|
|
static const char *num2str(const guint8 *, guint16);
|
|
static const char *attrtype2str(guint8);
|
|
static const char *cfgattrident2str(guint16);
|
|
|
|
#define NUM_LOAD_TYPES 15
|
|
#define loadtype2str(t) \
|
|
((t < NUM_LOAD_TYPES) ? strfuncs[t].str : "Unknown payload type")
|
|
#define LOAD_TYPE_TRANSFORM 3
|
|
|
|
static struct strfunc {
|
|
const char * str;
|
|
void (*func)(const u_char *, int, frame_data *, proto_tree *);
|
|
} strfuncs[NUM_LOAD_TYPES] = {
|
|
{"NONE", dissect_none },
|
|
{"Security Association", dissect_sa },
|
|
{"Proposal", dissect_proposal },
|
|
{"Transform", NULL },
|
|
{"Key Exchange", dissect_key_exch },
|
|
{"Identification", dissect_id },
|
|
{"Certificate", dissect_cert },
|
|
{"Certificate Request", dissect_certreq },
|
|
{"Hash", dissect_hash },
|
|
{"Signature", dissect_sig },
|
|
{"Nonce", dissect_nonce },
|
|
{"Notification", dissect_notif },
|
|
{"Delete", dissect_delete },
|
|
{"Vendor ID", dissect_vid },
|
|
{"Attrib", dissect_config }
|
|
};
|
|
|
|
static void
|
|
dissect_isakmp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct isakmp_hdr * hdr = (struct isakmp_hdr *)(pd + offset);
|
|
guint32 len;
|
|
|
|
OLD_CHECK_DISPLAY_AS_DATA(proto_isakmp, pd, offset, fd, tree);
|
|
|
|
if (check_col(fd, COL_PROTOCOL))
|
|
col_add_str(fd, COL_PROTOCOL, "ISAKMP");
|
|
|
|
len = pntohl(&hdr->length);
|
|
|
|
if (check_col(fd, COL_INFO))
|
|
col_add_fstr(fd, COL_INFO, "%s", exchtype2str(hdr->exch_type));
|
|
|
|
if (IS_DATA_IN_FRAME(offset) && tree) {
|
|
proto_item * ti;
|
|
proto_tree * isakmp_tree;
|
|
|
|
ti = proto_tree_add_item(tree, proto_isakmp, NullTVB, offset, len, FALSE);
|
|
isakmp_tree = proto_item_add_subtree(ti, ett_isakmp);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->icookie),
|
|
"Initiator cookie");
|
|
offset += sizeof(hdr->icookie);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->rcookie),
|
|
"Responder cookie");
|
|
offset += sizeof(hdr->rcookie);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->version),
|
|
"Version: %u.%u",
|
|
hi_nibble(hdr->version), lo_nibble(hdr->version));
|
|
offset += sizeof(hdr->version);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->exch_type),
|
|
"Exchange type: %s (%u)",
|
|
exchtype2str(hdr->exch_type), hdr->exch_type);
|
|
offset += sizeof(hdr->exch_type);
|
|
|
|
{
|
|
proto_item * fti;
|
|
proto_tree * ftree;
|
|
|
|
fti = proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->flags), "Flags");
|
|
ftree = proto_item_add_subtree(fti, ett_isakmp_flags);
|
|
|
|
proto_tree_add_text(ftree, NullTVB, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr->flags, E_FLAG, sizeof(hdr->flags)*8,
|
|
"Encryption", "No encryption"));
|
|
proto_tree_add_text(ftree, NullTVB, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr->flags, C_FLAG, sizeof(hdr->flags)*8,
|
|
"Commit", "No commit"));
|
|
proto_tree_add_text(ftree, NullTVB, offset, 1, "%s",
|
|
decode_boolean_bitfield(hdr->flags, A_FLAG, sizeof(hdr->flags)*8,
|
|
"Authentication", "No authentication"));
|
|
offset += sizeof(hdr->flags);
|
|
}
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->message_id), "Message ID");
|
|
offset += sizeof(hdr->message_id);
|
|
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, sizeof(hdr->length),
|
|
"Length: %u", len);
|
|
offset += sizeof(hdr->length);
|
|
|
|
if (hdr->flags & E_FLAG) {
|
|
if (IS_DATA_IN_FRAME(offset) && isakmp_tree) {
|
|
proto_tree_add_text(isakmp_tree, NullTVB, offset, END_OF_FRAME,
|
|
"Encrypted payload (%d byte%s)",
|
|
END_OF_FRAME, plurality(END_OF_FRAME, "", "s"));
|
|
}
|
|
} else {
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, isakmp_tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, isakmp_tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, isakmp_tree);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_none(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
}
|
|
|
|
static void
|
|
dissect_sa(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct sa_hdr * hdr = (struct sa_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
guint32 doi = pntohl(&hdr->doi);
|
|
guint32 situation = pntohl(&hdr->situation);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Security Association payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(doi),
|
|
"Domain of interpretation: %s (%u)",
|
|
doitype2str(doi), doi);
|
|
offset += sizeof(doi);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(situation),
|
|
"Situation: %s (%u)",
|
|
situation2str(situation), situation);
|
|
offset += sizeof(situation);
|
|
|
|
dissect_proposal(pd, offset, fd, ntree);
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_proposal(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct proposal_hdr * hdr = (struct proposal_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Proposal payload");
|
|
proto_tree * ntree;
|
|
|
|
int next_hdr_offset = offset + length;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->proposal_num),
|
|
"Proposal number: %u", hdr->proposal_num);
|
|
offset += sizeof(hdr->proposal_num);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->protocol_id),
|
|
"Protocol ID: %s (%u)",
|
|
proto2str(hdr->protocol_id), hdr->protocol_id);
|
|
offset += sizeof(hdr->protocol_id);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->spi_size),
|
|
"SPI size: %u", hdr->spi_size);
|
|
offset += sizeof(hdr->spi_size);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->num_transforms),
|
|
"Number of transforms: %u", hdr->num_transforms);
|
|
offset += sizeof(hdr->num_transforms);
|
|
|
|
if (hdr->spi_size) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, hdr->spi_size, "SPI");
|
|
offset += hdr->spi_size;
|
|
}
|
|
|
|
if (hdr->num_transforms > 0)
|
|
dissect_transform(pd, offset, fd, ntree, hdr->protocol_id);
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, next_hdr_offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, next_hdr_offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, next_hdr_offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_transform(const u_char *pd, int offset, frame_data *fd,
|
|
proto_tree *tree, guint8 protocol_id)
|
|
{
|
|
|
|
struct trans_hdr * hdr = (struct trans_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
int slength = length;
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Transform payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->transform_num),
|
|
"Transform number: %u", hdr->transform_num);
|
|
offset += sizeof(hdr->transform_num);
|
|
|
|
switch (protocol_id) {
|
|
default:
|
|
case 1: /* ISAKMP */
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->transform_id),
|
|
"Transform ID: %s (%u)",
|
|
trans2str(hdr->transform_id), hdr->transform_id);
|
|
break;
|
|
case 2: /* AH */
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->transform_id),
|
|
"Transform ID: %s (%u)",
|
|
ah_trans2str(hdr->transform_id), hdr->transform_id);
|
|
break;
|
|
case 3: /* ESP */
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->transform_id),
|
|
"Transform ID: %s (%u)",
|
|
esp_trans2str(hdr->transform_id), hdr->transform_id);
|
|
break;
|
|
}
|
|
offset += sizeof(hdr->transform_id) + sizeof(hdr->reserved2);
|
|
|
|
slength -= sizeof(*hdr);
|
|
while (slength>0) {
|
|
const char *str = NULL;
|
|
int ike_phase1 = 0;
|
|
guint16 type = pntohs(pd + offset) & 0x7fff;
|
|
guint16 val_len = pntohs(pd + offset + 2);
|
|
|
|
if (protocol_id == 1 && hdr->transform_id == 1) {
|
|
ike_phase1 = 1;
|
|
str = p1_atttype2str(type);
|
|
}
|
|
else {
|
|
str = atttype2str(type);
|
|
}
|
|
|
|
if (pd[offset] & 0x80) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, 4,
|
|
"%s (%u): %s (%u)",
|
|
str, type,
|
|
value2str(ike_phase1, type, val_len), val_len);
|
|
offset += 4;
|
|
slength -= 4;
|
|
}
|
|
else {
|
|
guint16 pack_len = 4 + val_len;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, pack_len,
|
|
"%s (%u): %s",
|
|
str, type,
|
|
num2str(pd + offset + 4, val_len));
|
|
offset += pack_len;
|
|
slength -= pack_len;
|
|
}
|
|
if (!IS_DATA_IN_FRAME(offset)) {
|
|
proto_tree_add_text(ntree, NullTVB, 0, 0,
|
|
"Bad Offset: %u", offset);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, protocol_id);
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_key_exch(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct ke_hdr * hdr = (struct ke_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Key Exchange payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Key Exchange Data");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_id(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct id_hdr * hdr = (struct id_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Identification payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->id_type),
|
|
"ID type: %s (%u)", id2str(hdr->id_type), hdr->id_type);
|
|
offset += sizeof(hdr->id_type);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->protocol_id),
|
|
"Protocol ID: %u", hdr->protocol_id);
|
|
offset += sizeof(hdr->protocol_id);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->port),
|
|
"Port: %u", pntohs(&hdr->port));
|
|
offset += sizeof(hdr->port);
|
|
|
|
switch (hdr->id_type) {
|
|
case 1:
|
|
case 4:
|
|
proto_tree_add_text(ntree, NullTVB, offset, length-sizeof(*hdr),
|
|
"Identification data: %s", ip_to_str(pd+offset));
|
|
break;
|
|
case 2:
|
|
case 3:
|
|
proto_tree_add_text(ntree, NullTVB, offset, length-sizeof(*hdr),
|
|
"Identification data: %s", (char *)(pd+offset));
|
|
break;
|
|
default:
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Identification Data");
|
|
}
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_cert(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct cert_hdr * hdr = (struct cert_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Certificate payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->cert_enc),
|
|
"Certificate encoding: %u", hdr->cert_enc);
|
|
offset += sizeof(hdr->cert_enc);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Certificate Data");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_certreq(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct certreq_hdr * hdr = (struct certreq_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Certificate Request payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->cert_type),
|
|
"Certificate type: %u", hdr->cert_type);
|
|
offset += sizeof(hdr->cert_type);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Certificate Authority");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_hash(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct hash_hdr * hdr = (struct hash_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Hash payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Hash Data");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_sig(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct sig_hdr * hdr = (struct sig_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Signature payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Signature Data");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_nonce(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct nonce_hdr * hdr = (struct nonce_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Nonce payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Nonce Data");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_notif(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct notif_hdr * hdr = (struct notif_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
guint32 doi = pntohl(&hdr->doi);
|
|
guint16 msgtype = pntohs(&hdr->msgtype);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Notification payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(doi),
|
|
"Domain of Interpretation: %s (%u)", doitype2str(doi), doi);
|
|
offset += sizeof(doi);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->protocol_id),
|
|
"Protocol ID: %s (%u)",
|
|
proto2str(hdr->protocol_id), hdr->protocol_id);
|
|
offset += sizeof(hdr->protocol_id);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->spi_size),
|
|
"SPI size: %u", hdr->spi_size);
|
|
offset += sizeof(hdr->spi_size);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(msgtype),
|
|
"Message type: %s (%u)", msgtype2str(msgtype), msgtype);
|
|
offset += sizeof(msgtype);
|
|
|
|
if (hdr->spi_size) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, hdr->spi_size, "Security Parameter Index");
|
|
offset += hdr->spi_size;
|
|
}
|
|
|
|
if (((int)length - sizeof(*hdr)) > 0) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr) - hdr->spi_size,
|
|
"Notification Data");
|
|
offset += (length - sizeof(*hdr) - hdr->spi_size);
|
|
}
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_delete(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct delete_hdr * hdr = (struct delete_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
guint32 doi = pntohl(&hdr->doi);
|
|
guint16 num_spis = pntohs(&hdr->num_spis);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Delete payload");
|
|
proto_tree * ntree;
|
|
guint16 i;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(doi),
|
|
"Domain of Interpretation: %s (%u)", doitype2str(doi), doi);
|
|
offset += sizeof(doi);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->protocol_id),
|
|
"Protocol ID: %s (%u)",
|
|
proto2str(hdr->protocol_id), hdr->protocol_id);
|
|
offset += sizeof(hdr->protocol_id);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->spi_size),
|
|
"SPI size: %u", hdr->spi_size);
|
|
offset += sizeof(hdr->spi_size);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, num_spis,
|
|
"Number of SPIs: %u", num_spis);
|
|
offset += sizeof(hdr->num_spis);
|
|
|
|
for (i = 0; i < num_spis; ++i) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, hdr->spi_size,
|
|
"SPI (%d)", i);
|
|
offset += hdr->spi_size;
|
|
}
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_vid(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct vid_hdr * hdr = (struct vid_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Vendor ID payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) * 2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, length - sizeof(*hdr), "Vendor ID");
|
|
offset += (length - sizeof(*hdr));
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
}
|
|
|
|
static void
|
|
dissect_config(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
|
|
|
|
struct cfg_hdr * hdr = (struct cfg_hdr *)(pd + offset);
|
|
guint16 length = pntohs(&hdr->length);
|
|
int slength = length;
|
|
proto_item * ti = proto_tree_add_text(tree, NullTVB, offset, length, "Attribute payload");
|
|
proto_tree * ntree;
|
|
|
|
ntree = proto_item_add_subtree(ti, ett_isakmp_payload);
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->next_payload),
|
|
"Next payload: %s (%u)",
|
|
payloadtype2str(hdr->next_payload), hdr->next_payload);
|
|
offset += sizeof(hdr->next_payload) *2;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(length),
|
|
"Length: %u", length);
|
|
offset += sizeof(length);
|
|
|
|
proto_tree_add_text(ntree,NullTVB, offset, sizeof(hdr->type),
|
|
"Type %s (%u)",attrtype2str(hdr->type),hdr->type);
|
|
|
|
offset += (sizeof(hdr->type) + sizeof(hdr->reserved2));
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, sizeof(hdr->identifier),
|
|
"Identifier: %u", pntohs(&hdr->identifier));
|
|
offset += sizeof(hdr->identifier);
|
|
slength -= sizeof(*hdr);
|
|
|
|
while(slength>0) {
|
|
guint16 type = pntohs(pd + offset) & 0x7fff;
|
|
guint16 val_len = pntohs(pd + offset + 2);
|
|
|
|
if(pd[offset] & 0x80) {
|
|
proto_tree_add_text(ntree, NullTVB, offset, 4,
|
|
"%s (%u)",cfgattrident2str(type),val_len);
|
|
offset += 4;
|
|
slength -= 4;
|
|
}
|
|
else {
|
|
guint pack_len = 4 + val_len;
|
|
|
|
proto_tree_add_text(ntree, NullTVB, offset, 4,
|
|
"%s (%se)", cfgattrident2str(type), num2str(pd + offset + 4, val_len));
|
|
offset += pack_len;
|
|
slength -= pack_len;
|
|
}
|
|
}
|
|
|
|
if (hdr->next_payload < NUM_LOAD_TYPES) {
|
|
if (hdr->next_payload == LOAD_TYPE_TRANSFORM)
|
|
dissect_transform(pd, offset, fd, tree, 0); /* XXX - protocol ID? */
|
|
else
|
|
(*strfuncs[hdr->next_payload].func)(pd, offset, fd, tree);
|
|
}
|
|
else
|
|
old_dissect_data(pd, offset, fd, tree);
|
|
|
|
}
|
|
|
|
static const char *
|
|
payloadtype2str(guint8 type) {
|
|
|
|
if (type < NUM_LOAD_TYPES) return strfuncs[type].str;
|
|
if (type < 128) return "RESERVED";
|
|
if (type < 256) return "Private USE";
|
|
|
|
return "Huh? You should never see this! Shame on you!";
|
|
}
|
|
|
|
static const char *
|
|
exchtype2str(guint8 type) {
|
|
|
|
#define NUM_EXCHSTRS 7
|
|
static const char * exchstrs[NUM_EXCHSTRS] = {
|
|
"NONE",
|
|
"Base",
|
|
"Identity Protection (Main Mode)",
|
|
"Authentication Only",
|
|
"Aggressive",
|
|
"Informational",
|
|
"Transaction (Config Mode)"
|
|
};
|
|
|
|
if (type < NUM_EXCHSTRS) return exchstrs[type];
|
|
if (type < 32) return "ISAKMP Future Use";
|
|
switch (type) {
|
|
case 32:
|
|
return "Quick Mode";
|
|
case 33:
|
|
return "New Group Mode";
|
|
}
|
|
if (type < 240) return "DOI Specific Use";
|
|
if (type < 256) return "Private Use";
|
|
|
|
return "Huh? You should never see this! Shame on you!";
|
|
}
|
|
|
|
static const char *
|
|
doitype2str(guint32 type) {
|
|
if (type == 1) return "IPSEC";
|
|
return "Unknown DOI Type";
|
|
}
|
|
|
|
static const char *
|
|
msgtype2str(guint16 type) {
|
|
|
|
#define NUM_PREDEFINED 31
|
|
static const char *msgs[NUM_PREDEFINED] = {
|
|
"<UNKNOWN>",
|
|
"INVALID-PAYLOAD-TYPE",
|
|
"DOI-NOT-SUPPORTED",
|
|
"SITUATION-NOT-SUPPORTED",
|
|
"INVALID-COOKIE",
|
|
"INVALID-MAJOR-VERSION",
|
|
"INVALID-MINOR-VERSION",
|
|
"INVALID-EXCHANGE-TYPE",
|
|
"INVALID-FLAGS",
|
|
"INVALID-MESSAGE-ID",
|
|
"INVALID-PROTOCOL-ID",
|
|
"INVALID-SPI",
|
|
"INVALID-TRANSFORM-ID",
|
|
"ATTRIBUTES-NOT-SUPPORTED",
|
|
"NO-PROPOSAL-CHOSEN",
|
|
"BAD-PROPOSAL-SYNTAX",
|
|
"PAYLOAD-MALFORMED",
|
|
"INVALID-KEY-INFORMATION",
|
|
"INVALID-ID-INFORMATION",
|
|
"INVALID-CERT-ENCODING",
|
|
"INVALID-CERTIFICATE",
|
|
"CERT-TYPE-UNSUPPORTED",
|
|
"INVALID-CERT-AUTHORITY",
|
|
"INVALID-HASH-INFORMATION",
|
|
"AUTHENTICATION-FAILED",
|
|
"INVALID-SIGNATURE",
|
|
"ADDRESS-NOTIFICATION",
|
|
"NOTIFY-SA-LIFETIME",
|
|
"CERTIFICATE-UNAVAILABLE",
|
|
"UNSUPPORTED-EXCHANGE-TYPE",
|
|
"UNEQUAL-PAYLOAD-LENGTHS"
|
|
};
|
|
|
|
if (type < NUM_PREDEFINED) return msgs[type];
|
|
if (type < 8192) return "RESERVED (Future Use)";
|
|
if (type < 16384) return "Private Use";
|
|
if (type < 16385) return "CONNECTED";
|
|
if (type < 24576) return "RESERVED (Future Use) - status";
|
|
if (type < 24577) return "RESPONDER-LIFETIME";
|
|
if (type < 24578) return "REPLAY-STATUS";
|
|
if (type < 24579) return "INITIAL-CONTACT";
|
|
if (type < 32768) return "DOI-specific codes";
|
|
if (type < 40960) return "Private Use - status";
|
|
if (type < 65535) return "RESERVED (Future Use) - status (2)";
|
|
|
|
return "Huh? You should never see this! Shame on you!";
|
|
}
|
|
|
|
static const char *
|
|
situation2str(guint32 type) {
|
|
|
|
#define SIT_MSG_NUM 1024
|
|
#define SIT_IDENTITY 0x01
|
|
#define SIT_SECRECY 0x02
|
|
#define SIT_INTEGRITY 0x04
|
|
|
|
static char msg[SIT_MSG_NUM];
|
|
int n = 0;
|
|
char * sep = "";
|
|
|
|
if (type & SIT_IDENTITY) {
|
|
n += snprintf(msg, SIT_MSG_NUM-n, "%sIDENTITY", sep);
|
|
sep = " & ";
|
|
}
|
|
if (type & SIT_SECRECY) {
|
|
n += snprintf(msg, SIT_MSG_NUM-n, "%sSECRECY", sep);
|
|
sep = " & ";
|
|
}
|
|
if (type & SIT_INTEGRITY) {
|
|
n += snprintf(msg, SIT_MSG_NUM-n, "%sINTEGRITY", sep);
|
|
sep = " & ";
|
|
}
|
|
|
|
return msg;
|
|
}
|
|
|
|
static const char *
|
|
value2str(int ike_p1, guint16 att_type, guint16 value) {
|
|
|
|
if (value == 0) return "RESERVED";
|
|
|
|
if (!ike_p1) {
|
|
switch (att_type) {
|
|
case 1:
|
|
switch (value) {
|
|
case 1: return "Seconds";
|
|
case 2: return "Kilobytes";
|
|
default: return "UNKNOWN-SA-VALUE";
|
|
}
|
|
case 2:
|
|
return "Duration-Value";
|
|
case 3:
|
|
return "Group-Value";
|
|
case 4:
|
|
switch (value) {
|
|
case 1: return "Tunnel";
|
|
case 2: return "Transport";
|
|
default: return "UNKNOWN-ENCAPSULATION-VALUE";
|
|
}
|
|
case 5:
|
|
switch (value) {
|
|
case 1: return "HMAC-MD5";
|
|
case 2: return "HMAC-SHA";
|
|
case 3: return "DES-MAC";
|
|
case 4: return "KPDK";
|
|
case 5: return "HMAC-SHA2-256";
|
|
case 6: return "HMAC-SHA2-384";
|
|
case 7: return "HMAC-SHA2-512";
|
|
default: return "UNKNOWN-AUTHENTICATION-VALUE";
|
|
}
|
|
case 6:
|
|
return "Key-Length";
|
|
case 7:
|
|
return "Key-Rounds";
|
|
case 8:
|
|
return "log2-size";
|
|
default: return "UNKNOWN-ATTRIBUTE-TYPE";
|
|
}
|
|
}
|
|
else {
|
|
switch (att_type) {
|
|
case 1:
|
|
switch (value) {
|
|
case 1: return "DES-CBC";
|
|
case 2: return "IDEA-CBC";
|
|
case 3: return "BLOWFISH-CBC";
|
|
case 4: return "RC5-R16-B64-CBC";
|
|
case 5: return "3DES-CBC";
|
|
case 6: return "CAST-CBC";
|
|
case 7: return "AES-CBC";
|
|
default: return "UNKNOWN-ENCRYPTION-ALG";
|
|
}
|
|
case 2:
|
|
switch (value) {
|
|
case 1: return "MD5";
|
|
case 2: return "SHA";
|
|
case 3: return "TIGER";
|
|
case 4: return "SHA2-256";
|
|
case 5: return "SHA2-384";
|
|
case 6: return "SHA2-512";
|
|
default: return "UNKNOWN-HASH-ALG";
|
|
}
|
|
case 3:
|
|
switch (value) {
|
|
case 1: return "PSK";
|
|
case 2: return "DSS-SIG";
|
|
case 3: return "RSA-SIG";
|
|
case 4: return "RSA-ENC";
|
|
case 5: return "RSA-Revised-ENC";
|
|
case 64221: return "HybridInitRSA";
|
|
case 64222: return "HybridRespRSA";
|
|
case 64223: return "HybridInitDSS";
|
|
case 64224: return "HybridRespDSS";
|
|
case 65001: return "XAUTHInitPreShared";
|
|
case 65002: return "XAUTHRespPreShared";
|
|
case 65003: return "XAUTHInitDSS";
|
|
case 65004: return "XAUTHRespDSS";
|
|
case 65005: return "XAUTHInitRSA";
|
|
case 65006: return "XAUTHRespRSA";
|
|
case 65007: return "XAUTHInitRSAEncryption";
|
|
case 65008: return "XAUTHRespRSAEncryption";
|
|
case 65009: return "XAUTHInitRSARevisedEncryption";
|
|
case 65010: return "XAUTHRespRSARevisedEncryption";
|
|
default: return "UNKNOWN-AUTH-METHOD";
|
|
}
|
|
case 4:
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
case 10:
|
|
case 16:
|
|
return "Group-Value";
|
|
case 5:
|
|
switch (value) {
|
|
case 1: return "MODP";
|
|
case 2: return "ECP";
|
|
case 3: return "EC2N";
|
|
default: return "UNKNOWN-GROUPT-TYPE";
|
|
}
|
|
case 11:
|
|
switch (value) {
|
|
case 1: return "Seconds";
|
|
case 2: return "Kilobytes";
|
|
default: return "UNKNOWN-SA-VALUE";
|
|
}
|
|
case 12:
|
|
return "Duration-Value";
|
|
case 13:
|
|
return "PRF-Value";
|
|
case 14:
|
|
return "Key-Length";
|
|
case 15:
|
|
return "Field-Size";
|
|
default: return "UNKNOWN-ATTRIBUTE-TYPE";
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
attrtype2str(guint8 type) {
|
|
switch (type) {
|
|
case 0: return "Reserved";
|
|
case 1: return "ISAKMP_CFG_REQUEST";
|
|
case 2: return "ISAKMP_CFG_REPLY";
|
|
case 3: return "ISAKMP_CFG_SET";
|
|
case 4: return "ISAKMP_CFG_ACK";
|
|
}
|
|
if(type < 127)
|
|
return "Future use";
|
|
return "Private use";
|
|
}
|
|
|
|
static const char *
|
|
cfgattrident2str(guint16 ident) {
|
|
#define NUM_ATTR_DEFINED 12
|
|
static const char *msgs[NUM_PREDEFINED] = {
|
|
"RESERVED",
|
|
"INTERNAL_IP4_ADDRESS",
|
|
"INTERNAL_IP4_NETMASK",
|
|
"INTERNAL_IP4_DNS",
|
|
"INTERNAL_IP4_NBNS",
|
|
"INTERNAL_ADDRESS_EXPIREY",
|
|
"INTERNAL_IP4_DHCP",
|
|
"APPLICATION_VERSION"
|
|
"INTERNAL_IP6_ADDRESS",
|
|
"INTERNAL_IP6_NETMASK",
|
|
"INTERNAL_IP6_DNS",
|
|
"INTERNAL_IP6_NBNS",
|
|
"INTERNAL_IP6_DHCP",
|
|
};
|
|
if(ident < NUM_ATTR_DEFINED)
|
|
return msgs[ident];
|
|
if(ident < 16383)
|
|
return "Future use";
|
|
switch(ident) {
|
|
case 16520: return "XAUTH_TYPE";
|
|
case 16521: return "XAUTH_USER_NAME";
|
|
case 16522: return "XAUTH_USER_PASSWORD";
|
|
case 16523: return "XAUTH_PASSCODE";
|
|
case 16524: return "XAUTH_MESSAGE";
|
|
case 16525: return "XAUTH_CHALLANGE";
|
|
case 16526: return "XAUTH_DOMAIN";
|
|
case 16527: return "XAUTH_STATUS";
|
|
default: return "Private use";
|
|
}
|
|
}
|
|
|
|
static const char *
|
|
num2str(const guint8 *pd, guint16 len) {
|
|
|
|
#define NUMSTR_LEN 1024
|
|
static char numstr[NUMSTR_LEN];
|
|
|
|
switch (len) {
|
|
case 1:
|
|
snprintf(numstr, NUMSTR_LEN, "%u", *pd);
|
|
break;
|
|
case 2:
|
|
snprintf(numstr, NUMSTR_LEN, "%u", pntohs(pd));
|
|
break;
|
|
case 3:
|
|
snprintf(numstr, NUMSTR_LEN, "%u", pntohl(pd) & 0x0fff);
|
|
break;
|
|
case 4:
|
|
snprintf(numstr, NUMSTR_LEN, "%u", pntohl(pd));
|
|
break;
|
|
default:
|
|
snprintf(numstr, NUMSTR_LEN, "<too big>");
|
|
}
|
|
|
|
return numstr;
|
|
}
|
|
|
|
void
|
|
proto_register_isakmp(void)
|
|
{
|
|
/* static hf_register_info hf[] = {
|
|
{ &variable,
|
|
{ "Name", "isakmp.abbreviation", TYPE, VALS_POINTER }},
|
|
};*/
|
|
static gint *ett[] = {
|
|
&ett_isakmp,
|
|
&ett_isakmp_flags,
|
|
&ett_isakmp_payload,
|
|
};
|
|
|
|
proto_isakmp = proto_register_protocol("Internet Security Association and Key Management Protocol", "isakmp");
|
|
/* proto_register_field_array(proto_isakmp, hf, array_length(hf));*/
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_isakmp(void)
|
|
{
|
|
old_dissector_add("udp.port", UDP_PORT_ISAKMP, dissect_isakmp);
|
|
}
|