-/* $NetBSD: print-ntp.c,v 1.3 1997/03/15 18:37:55 is Exp $ */
-
/*
- * Copyright (c) 1990, 1991, 1992, 1993, 1994
- * The Regents of the University of California. All rights reserved.
- *
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
* Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
- * the University nor the names of its contributors may be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
*
- * Format and print ntp packets.
- * By Jeffrey Mogul/DECWRL
- * loosely based on print-bootp.c
*/
#ifndef lint
-static char rcsid[] =
- "@(#) Header: print-ntp.c,v 1.14 94/06/14 20:18:46 leres Exp (LBL)";
+static const char rcsid[] =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.10 2000-01-17 06:24:25 itojun Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
#endif
+#include <string.h>
+#include <ctype.h>
#include <sys/param.h>
#include <sys/time.h>
-#include <sys/types.h>
#include <sys/socket.h>
+#if __STDC__
+struct mbuf;
+struct rtentry;
+#endif
#include <net/if.h>
#include <netinet/in.h>
-#ifdef __NetBSD__
-#include <net/if_ether.h>
-#else
#include <netinet/if_ether.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+#include <netinet/tcp.h>
+
+#ifdef INET6
+#include <netinet/ip6.h>
#endif
-#include <ctype.h>
#include <stdio.h>
-#include <string.h>
+#include <netdb.h>
+#include "isakmp.h"
+#include "ipsec_doi.h"
+#include "oakley.h"
#include "interface.h"
#include "addrtoname.h"
-#undef MODEMASK /* Solaris sucks */
-#include "ntp.h"
-
-struct isakmp_header {
- u_char init_cookie[4];
- u_char resp_cookie[4];
- u_char nextpayload;
-#if BYTE_ORDER == LITTLE_ENDIAN
- u_char mnver:4;
- u_char mjver:4;
-#endif
-#if BYTE_ORDER == BIG_ENDIAN
- u_char mjver:4;
- u_char mnver:4;
-#endif
- u_char exgtype;
- u_char flags;
- u_char msgid[4];
- u_int32 length;
+#include "extract.h" /* must come after interface.h */
+
+#ifndef HAVE_SOCKADDR_STORAGE
+#define sockaddr_storage sockaddr
+#endif
+
+static u_char *isakmp_sa_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_p_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_t_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_ke_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_id_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_hash_print __P((struct isakmp_gen *, u_char *,
+ u_int32_t, u_int32_t, u_int32_t));
+static u_char *isakmp_nonce_print __P((struct isakmp_gen *, u_char *,
+ u_int32_t, u_int32_t, u_int32_t));
+static u_char *isakmp_n_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_d_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_vid_print __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t));
+static u_char *isakmp_sub0_print __P((u_char, struct isakmp_gen *, u_char *,
+ u_int32_t, u_int32_t, u_int32_t));
+static u_char *isakmp_sub_print __P((u_char, struct isakmp_gen *, u_char *,
+ u_int32_t, u_int32_t, u_int32_t));
+static char *numstr __P((int));
+
+#define MAXINITIATORS 20
+int ninitiator = 0;
+struct {
+ cookie_t initiator;
+ struct sockaddr_storage iaddr;
+ struct sockaddr_storage raddr;
+} cookiecache[MAXINITIATORS];
+
+/* protocol id */
+static char *protoidstr[] = {
+ NULL, "isakmp", "ipsec-ah", "ipsec-esp", "ipcomp",
};
-#define FLAGS_ENCRYPTION 1
-#define FLAGS_COMMIT 2
+/* isakmp->np */
+static char *npstr[] = {
+ "none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash",
+ "sig", "nonce", "n", "d", "vid"
+};
+
+/* isakmp->np */
+static u_char *(*npfunc[]) __P((struct isakmp_gen *, u_char *, u_int32_t,
+ u_int32_t, u_int32_t)) = {
+ NULL,
+ isakmp_sa_print,
+ isakmp_p_print,
+ isakmp_t_print,
+ isakmp_ke_print,
+ isakmp_id_print,
+ NULL,
+ NULL,
+ isakmp_hash_print,
+ NULL,
+ isakmp_nonce_print,
+ isakmp_n_print,
+ isakmp_d_print,
+ isakmp_vid_print,
+};
+
+/* isakmp->etype */
+static char *etypestr[] = {
+ "none", "base", "ident", "auth", "agg", "inf", NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "oakley-quick", "oakley-newgroup",
+};
+
+#define STR_OR_ID(x, tab) \
+ (((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x))
+#define PROTOIDSTR(x) STR_OR_ID(x, protoidstr)
+#define NPSTR(x) STR_OR_ID(x, npstr)
+#define ETYPESTR(x) STR_OR_ID(x, etypestr)
+
+#define NPFUNC(x) \
+ (((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \
+ ? npfunc[(x)] : NULL)
+
+static int
+iszero(u_char *p, size_t l)
+{
+ while (l--) {
+ if (*p++)
+ return 0;
+ }
+ return 1;
+}
+
+/* find cookie from initiator cache */
+static int
+cookie_find(cookie_t *in)
+{
+ int i;
+
+ for (i = 0; i < MAXINITIATORS; i++) {
+ if (memcmp(in, &cookiecache[i].initiator, sizeof(*in)) == 0)
+ return i;
+ }
+
+ return -1;
+}
+
+/* record initiator */
+static void
+cookie_record(cookie_t *in, const u_char *bp2)
+{
+ int i;
+ struct ip *ip;
+ struct sockaddr_in *sin;
+#ifdef INET6
+ struct ip6_hdr *ip6;
+ struct sockaddr_in6 *sin6;
+#endif
+
+ i = cookie_find(in);
+ if (0 <= i) {
+ ninitiator = (i + 1) % MAXINITIATORS;
+ return;
+ }
+
+ ip = (struct ip *)bp2;
+ switch (ip->ip_v) {
+ case 4:
+ memset(&cookiecache[ninitiator].iaddr, 0,
+ sizeof(cookiecache[ninitiator].iaddr));
+ memset(&cookiecache[ninitiator].raddr, 0,
+ sizeof(cookiecache[ninitiator].raddr));
+
+ sin = (struct sockaddr_in *)&cookiecache[ninitiator].iaddr;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin->sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin->sin_family = AF_INET;
+ memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
+ sin = (struct sockaddr_in *)&cookiecache[ninitiator].raddr;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin->sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin->sin_family = AF_INET;
+ memcpy(&sin->sin_addr, &ip->ip_dst, sizeof(ip->ip_dst));
+ break;
+#ifdef INET6
+ case 6:
+ memset(&cookiecache[ninitiator].iaddr, 0,
+ sizeof(cookiecache[ninitiator].iaddr));
+ memset(&cookiecache[ninitiator].raddr, 0,
+ sizeof(cookiecache[ninitiator].raddr));
+
+ ip6 = (struct ip6_hdr *)bp2;
+ sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].iaddr;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin6->sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ sin6->sin6_family = AF_INET6;
+ memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
+ sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].raddr;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin6->sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ sin6->sin6_family = AF_INET6;
+ memcpy(&sin6->sin6_addr, &ip6->ip6_dst, sizeof(ip6->ip6_dst));
+ break;
+#endif
+ default:
+ return;
+ }
+ memcpy(&cookiecache[ninitiator].initiator, in, sizeof(*in));
+ ninitiator = (ninitiator + 1) % MAXINITIATORS;
+}
+
+#define cookie_isinitiator(x, y) cookie_sidecheck((x), (y), 1)
+#define cookie_isresponder(x, y) cookie_sidecheck((x), (y), 0)
+static int
+cookie_sidecheck(int i, const u_char *bp2, int initiator)
+{
+ struct sockaddr_storage ss;
+ struct sockaddr *sa;
+ struct ip *ip;
+ struct sockaddr_in *sin;
+#ifdef INET6
+ struct ip6_hdr *ip6;
+ struct sockaddr_in6 *sin6;
+#endif
+ int salen;
+
+ memset(&ss, 0, sizeof(ss));
+ ip = (struct ip *)bp2;
+ switch (ip->ip_v) {
+ case 4:
+ sin = (struct sockaddr_in *)&ss;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin->sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin->sin_family = AF_INET;
+ memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
+ break;
+#ifdef INET6
+ case 6:
+ ip6 = (struct ip6_hdr *)bp2;
+ sin6 = (struct sockaddr_in6 *)&ss;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ sin6->sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ sin6->sin6_family = AF_INET6;
+ memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
+ break;
+#endif
+ default:
+ return 0;
+ }
+
+ sa = (struct sockaddr *)&ss;
+ if (initiator) {
+ if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].iaddr)->sa_family)
+ return 0;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ salen = sa->sa_len;
+#else
+#ifdef INET6
+ if (sa->sa_family == AF_INET6)
+ salen = sizeof(struct sockaddr_in6);
+ else
+ salen = sizeof(struct sockaddr);
+#else
+ salen = sizeof(struct sockaddr);
+#endif
+#endif
+ if (memcmp(&ss, &cookiecache[i].iaddr, salen) == 0)
+ return 1;
+ } else {
+ if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].raddr)->sa_family)
+ return 0;
+#ifdef HAVE_SOCKADDR_SA_LEN
+ salen = sa->sa_len;
+#else
+#ifdef INET6
+ if (sa->sa_family == AF_INET6)
+ salen = sizeof(struct sockaddr_in6);
+ else
+ salen = sizeof(struct sockaddr);
+#else
+ salen = sizeof(struct sockaddr);
+#endif
+#endif
+ if (memcmp(&ss, &cookiecache[i].raddr, salen) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+static void
+rawprint(caddr_t loc, size_t len)
+{
+ static u_char *p;
+ int i;
+
+ p = (u_char *)loc;
+ for (i = 0; i < len; i++)
+ printf("%02x", p[i] & 0xff);
+}
+
+struct attrmap {
+ char *type;
+ int nvalue;
+ char *value[30]; /*XXX*/
+};
+
+static u_char *
+isakmp_attrmap_print(u_char *p, u_char *ep, struct attrmap *map, size_t nmap)
+{
+ u_short *q;
+ int totlen;
+ u_int32_t t, v;
+
+ q = (u_short *)p;
+ if (p[0] & 0x80)
+ totlen = 4;
+ else
+ totlen = 4 + ntohs(q[1]);
+ if (ep < p + totlen) {
+ printf("[|attr]");
+ return ep + 1;
+ }
+
+ printf("(");
+ t = ntohs(q[0]) & 0x7fff;
+ if (map && t < nmap && map[t].type)
+ printf("type=%s ", map[t].type);
+ else
+ printf("type=#%d ", t);
+ if (p[0] & 0x80) {
+ printf("value=");
+ v = ntohs(q[1]);
+ if (map && t < nmap && v < map[t].nvalue && map[t].value[v])
+ printf("%s", map[t].value[v]);
+ else
+ rawprint((caddr_t)&q[1], 2);
+ } else {
+ printf("len=%d value=", ntohs(q[1]));
+ rawprint((caddr_t)&p[4], ntohs(q[1]));
+ }
+ printf(")");
+ return p + totlen;
+}
+
+static u_char *
+isakmp_attr_print(u_char *p, u_char *ep)
+{
+ u_short *q;
+ int totlen;
+ u_int32_t t;
+
+ q = (u_short *)p;
+ if (p[0] & 0x80)
+ totlen = 4;
+ else
+ totlen = 4 + ntohs(q[1]);
+ if (ep < p + totlen) {
+ printf("[|attr]");
+ return ep + 1;
+ }
+
+ printf("(");
+ t = ntohs(q[0]) & 0x7fff;
+ printf("type=#%d ", t);
+ if (p[0] & 0x80) {
+ printf("value=");
+ t = q[1];
+ rawprint((caddr_t)&q[1], 2);
+ } else {
+ printf("len=%d value=", ntohs(q[1]));
+ rawprint((caddr_t)&p[2], ntohs(q[1]));
+ }
+ printf(")");
+ return p + totlen;
+}
+
+static u_char *
+isakmp_sa_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi0, u_int32_t proto0)
+{
+ struct isakmp_pl_sa *p;
+ u_int32_t *q;
+ u_int32_t doi;
+ u_int32_t sit;
+ u_char *cp;
+ int t;
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_SA));
+
+ p = (struct isakmp_pl_sa *)ext;
+ doi = ntohl(p->doi);
+ if (doi != 1) {
+ printf(" doi=%d", doi);
+ printf(" situation=%u", (u_int32_t)ntohl(p->sit));
+ return (u_char *)(p + 1);
+ }
+
+ printf(" doi=ipsec");
+ q = (u_int32_t *)&p->sit;
+ printf(" situation=");
+ t = 0;
+ if (ntohl(*q) & 0x01) {
+ printf("identity");
+ t++;
+ }
+ if (ntohl(*q) & 0x02) {
+ printf("%ssecrecy", t ? "+" : "");
+ t++;
+ }
+ if (ntohl(*q) & 0x04)
+ printf("%sintegrity", t ? "+" : "");
+ sit = htonl(*q++);
+
+ if (sit != 0x01)
+ printf(" ident=%u", (u_int32_t)ntohl(*q++));
+
+ ext = (struct isakmp_gen *)q;
+
+ cp = isakmp_sub_print(ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0);
+
+ return cp;
+}
+
+static u_char *
+isakmp_p_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi0, u_int32_t proto0)
+{
+ struct isakmp_pl_p *p;
+ u_char *cp;
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_P));
+
+ p = (struct isakmp_pl_p *)ext;
+ printf(" #%d protoid=%s transform=%d",
+ p->p_no, PROTOIDSTR(p->prot_id), p->num_t);
+ if (p->spi_size) {
+ printf(" spi=");
+ rawprint((caddr_t)(p + 1), p->spi_size);
+ }
+
+ ext = (struct isakmp_gen *)((u_char *)(p + 1) + p->spi_size);
+
+ cp = isakmp_sub_print(ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ p->prot_id);
+
+ return cp;
+}
+
+static char *isakmp_p_map[] = {
+ NULL, "ike",
+};
+
+static char *ah_p_map[] = {
+ NULL, "md5", "sha", "1des",
+};
+
+static char *esp_p_map[] = {
+ NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast",
+ "blowfish", "3idea", "1des-iv32", "rc4", "null"
+};
+
+static char *ipcomp_p_map[] = {
+ NULL, "oui", "deflate", "lzs",
+};
+
+struct attrmap ipsec_t_map[] = {
+ { NULL, 0, },
+ { "lifetype", 3, { NULL, "sec", "kb", }, },
+ { "life", 0, },
+ { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
+ "EC2N 2^185", }, },
+ { "enc mode", 3, { NULL, "tunnel", "transport", }, },
+ { "auth", 5, { NULL, "hmac-md5", "hmac-sha1", "1des-mac", "keyed", }, },
+ { "keylen", 0, },
+ { "rounds", 0, },
+ { "dictsize", 0, },
+ { "privalg", 0, },
+};
+
+struct attrmap oakley_t_map[] = {
+ { NULL, 0 },
+ { "enc", 7, { NULL, "1des", "idea", "blowfish", "rc5",
+ "3des", "cast"}, },
+ { "hash", 4, { NULL, "md5", "sha1", "tiger", }, },
+ { "auth", 6, { NULL, "preshared", "dss", "rsa sig", "rsa enc",
+ "rsa enc revised", }, },
+ { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
+ "EC2N 2^185", }, },
+ { "group type", 4, { NULL, "MODP", "ECP", "EC2N", }, },
+ { "group prime", 0, },
+ { "group gen1", 0, },
+ { "group gen2", 0, },
+ { "group curve A", 0, },
+ { "group curve B", 0, },
+ { "lifetype", 3, { NULL, "sec", "kb", }, },
+ { "lifeduration", 0, },
+ { "prf", 0, },
+ { "keylen", 0, },
+ { "field", 0, },
+ { "order", 0, },
+};
+
+static u_char *
+isakmp_t_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+ struct isakmp_pl_t *p;
+ u_char *cp;
+ char *idstr;
+ struct attrmap *map;
+ size_t nmap;
+ u_char *ep2;
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_T));
+
+ p = (struct isakmp_pl_t *)ext;
+
+ switch (proto) {
+ case 1:
+ idstr = STR_OR_ID(p->t_id, isakmp_p_map);
+ map = oakley_t_map;
+ nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
+ break;
+ case 2:
+ idstr = STR_OR_ID(p->t_id, ah_p_map);
+ map = ipsec_t_map;
+ nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
+ break;
+ case 3:
+ idstr = STR_OR_ID(p->t_id, esp_p_map);
+ map = ipsec_t_map;
+ nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
+ break;
+ case 4:
+ idstr = STR_OR_ID(p->t_id, ipcomp_p_map);
+ map = ipsec_t_map;
+ nmap = sizeof(ipsec_t_map)/sizeof(ipsec_t_map[0]);
+ break;
+ default:
+ idstr = NULL;
+ map = NULL;
+ nmap = 0;
+ break;
+ }
+
+ if (idstr)
+ printf(" #%d id=%s ", p->t_no, idstr);
+ else
+ printf(" #%d id=%d ", p->t_no, p->t_id);
+ cp = (u_char *)(p + 1);
+ ep2 = (u_char *)p + ntohs(ext->len);
+ while (cp < ep && cp < ep2) {
+ if (map && nmap) {
+ cp = isakmp_attrmap_print(cp, (ep < ep2) ? ep : ep2,
+ map, nmap);
+ } else
+ cp = isakmp_attr_print(cp, (ep < ep2) ? ep : ep2);
+ }
+ if (ep < ep2)
+ printf("...");
+ return cp;
+}
+
+static u_char *
+isakmp_ke_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_KE));
+
+ printf(" key len=%d", ntohs(ext->len) - 4);
+ if (2 < vflag && 4 < ntohs(ext->len)) {
+ printf(" ");
+ rawprint((caddr_t)(ext + 1), ntohs(ext->len) - 4);
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_id_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+#define USE_IPSECDOI_IN_PHASE1 1
+ struct isakmp_pl_id *p;
+ static char *idtypestr[] = {
+ "IPv4", "IPv4net", "IPv6", "IPv6net",
+ };
+ static char *ipsecidtypestr[] = {
+ NULL, "IPv4", "FQDN", "user FQDN", "IPv4net", "IPv6",
+ "IPv6net", "IPv4range", "IPv6range", "ASN1 DN", "ASN1 GN",
+ "keyid",
+ };
+ int len;
+ u_char *data;
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_ID));
+
+ p = (struct isakmp_pl_id *)ext;
+ if (sizeof(*p) < ext->len)
+ data = (u_char *)(p + 1);
+ else
+ data = NULL;
+ len = ntohs(ext->len) - sizeof(*p);
+
+#if 0 /*debug*/
+ printf(" [phase=%d doi=%d proto=%d]", phase, doi, proto);
+#endif
+ switch (phase) {
+#ifndef USE_IPSECDOI_IN_PHASE1
+ case 1:
+#endif
+ default:
+ printf(" idtype=%s", STR_OR_ID(p->d.id_type, idtypestr));
+ printf(" doi_data=%u",
+ (u_int32_t)(ntohl(p->d.doi_data) & 0xffffff));
+ break;
+
+#ifdef USE_IPSECDOI_IN_PHASE1
+ case 1:
+#endif
+ case 2:
+ {
+ struct ipsecdoi_id *p;
+ struct protoent *pe;
+
+ p = (struct ipsecdoi_id *)ext;
+ printf(" idtype=%s", STR_OR_ID(p->type, ipsecidtypestr));
+ setprotoent(1);
+ pe = getprotobynumber(p->proto_id);
+ if (pe)
+ printf(" protoid=%s", pe->p_name);
+ else
+ printf(" protoid=%s", PROTOIDSTR(p->proto_id));
+ endprotoent();
+ printf(" port=%d", ntohs(p->port));
+ if (!len)
+ break;
+ switch (p->type) {
+ case IPSECDOI_ID_IPV4_ADDR:
+ printf(" len=%d %s", len, ipaddr_string(data));
+ len = 0;
+ break;
+ case IPSECDOI_ID_FQDN:
+ case IPSECDOI_ID_USER_FQDN:
+ {
+ int i;
+ printf(" len=%d ", len);
+ for (i = 0; i < len; i++) {
+ if (isprint(data[i]))
+ printf("%c", data[i]);
+ else
+ printf("\\%03o", data[i]);
+ }
+ len = 0;
+ break;
+ }
+ case IPSECDOI_ID_IPV4_ADDR_SUBNET:
+ {
+ u_char *mask;
+ mask = data + sizeof(struct in_addr);
+ printf(" len=%d %s/%u.%u.%u.%u", len,
+ ipaddr_string(data),
+ mask[0], mask[1], mask[2], mask[3]);
+ len = 0;
+ break;
+ }
+#ifdef INET6
+ case IPSECDOI_ID_IPV6_ADDR:
+ printf(" len=%d %s", len, ip6addr_string(data));
+ len = 0;
+ break;
+ case IPSECDOI_ID_IPV6_ADDR_SUBNET:
+ {
+ u_int32_t *mask;
+ mask = (u_int32_t *)(data + sizeof(struct in6_addr));
+ /*XXX*/
+ printf(" len=%d %s/0x%08x%08x%08x%08x", len,
+ ip6addr_string(data),
+ mask[0], mask[1], mask[2], mask[3]);
+ len = 0;
+ break;
+ }
+#endif /*INET6*/
+ case IPSECDOI_ID_IPV4_ADDR_RANGE:
+ printf(" len=%d %s-%s", len, ipaddr_string(data),
+ ipaddr_string(data + sizeof(struct in_addr)));
+ len = 0;
+ break;
+#ifdef INET6
+ case IPSECDOI_ID_IPV6_ADDR_RANGE:
+ printf(" len=%d %s-%s", len, ip6addr_string(data),
+ ip6addr_string(data + sizeof(struct in6_addr)));
+ len = 0;
+ break;
+#endif /*INET6*/
+ case IPSECDOI_ID_DER_ASN1_DN:
+ case IPSECDOI_ID_DER_ASN1_GN:
+ case IPSECDOI_ID_KEY_ID:
+ break;
+ }
+ break;
+ }
+ }
+ if (data && len) {
+ len -= sizeof(*p);
+ printf(" len=%d", len);
+ if (2 < vflag) {
+ printf(" ");
+ rawprint((caddr_t)data, len);
+ }
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_hash_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_HASH));
+
+ printf(" len=%d", ntohs(ext->len) - 4);
+ if (2 < vflag && 4 < ntohs(ext->len)) {
+ printf(" ");
+ rawprint((caddr_t)(ext + 1), ntohs(ext->len) - 4);
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_nonce_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_NONCE));
+
+ printf(" n len=%d", ntohs(ext->len) - 4);
+ if (2 < vflag && 4 < ntohs(ext->len)) {
+ printf(" ");
+ rawprint((caddr_t)(ext + 1), ntohs(ext->len) - 4);
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_n_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi0, u_int32_t proto0)
+{
+ struct isakmp_pl_n *p;
+ u_char *cp;
+ u_char *ep2;
+ u_int32_t doi;
+ u_int32_t proto;
+ static char *notifystr[] = {
+ NULL, "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",
+ };
+ static char *ipsecnotifystr[] = {
+ "RESPONDER-LIFETIME", "REPLAY-STATUS",
+ "INITIAL-CONTACT",
+ };
+/* NOTE: these macro must be called with x in proper range */
+#define NOTIFYSTR(x) \
+ (((x) == 16384) ? "CONNECTED" : STR_OR_ID((x), notifystr))
+#define IPSECNOTIFYSTR(x) \
+ (((x) == 8192) ? "RESERVED" : STR_OR_ID(((x) - 24576), ipsecnotifystr))
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_N));
+
+ p = (struct isakmp_pl_n *)ext;
+ doi = ntohl(p->doi);
+ proto = p->prot_id;
+ if (doi != 1) {
+ printf(" doi=%d", doi);
+ printf(" proto=%d", proto);
+ printf(" type=%s", NOTIFYSTR(ntohs(p->type)));
+ if (p->spi_size) {
+ printf(" spi=");
+ rawprint((caddr_t)(p + 1), p->spi_size);
+ }
+ return (u_char *)(p + 1) + p->spi_size;
+ }
+
+ printf(" doi=ipsec");
+ printf(" proto=%s", PROTOIDSTR(proto));
+ if (ntohs(p->type) < 8192)
+ printf(" type=%s", NOTIFYSTR(ntohs(p->type)));
+ else if (ntohs(p->type) < 16384)
+ printf(" type=%s", IPSECNOTIFYSTR(ntohs(p->type)));
+ else if (ntohs(p->type) < 24576)
+ printf(" type=%s", NOTIFYSTR(ntohs(p->type)));
+ else if (ntohs(p->type) < 40960)
+ printf(" type=%s", IPSECNOTIFYSTR(ntohs(p->type)));
+ else
+ printf(" type=%s", NOTIFYSTR(ntohs(p->type)));
+ if (p->spi_size) {
+ printf(" spi=");
+ rawprint((caddr_t)(p + 1), p->spi_size);
+ }
+
+ cp = (u_char *)(p + 1) + p->spi_size;
+ ep2 = (u_char *)p + ntohs(ext->len);
+
+ if (cp < ep) {
+ printf(" orig=(");
+ switch (ntohs(p->type)) {
+ case IPSECDOI_NTYPE_RESPONDER_LIFETIME:
+ {
+ struct attrmap *map = oakley_t_map;
+ size_t nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
+ while (cp < ep && cp < ep2) {
+ cp = isakmp_attrmap_print(cp,
+ (ep < ep2) ? ep : ep2, map, nmap);
+ }
+ break;
+ }
+ case IPSECDOI_NTYPE_REPLAY_STATUS:
+ printf("replay detection %sabled",
+ (*(u_int32_t *)cp) ? "en" : "dis");
+ break;
+ case ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN:
+ isakmp_sub_print(ISAKMP_NPTYPE_SA,
+ (struct isakmp_gen *)cp, ep, phase, doi, proto);
+ break;
+ default:
+ /* NULL is dummy */
+ isakmp_print(cp,
+ ntohs(ext->len) - sizeof(*p) - p->spi_size,
+ NULL);
+ }
+ printf(")");
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_d_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi0, u_int32_t proto0)
+{
+ struct isakmp_pl_d *p;
+ u_int8_t *q;
+ u_int32_t doi;
+ u_int32_t proto;
+ int i;
+
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_D));
+
+ p = (struct isakmp_pl_d *)ext;
+ doi = ntohl(p->doi);
+ proto = p->prot_id;
+ if (doi != 1) {
+ printf(" doi=%u", doi);
+ printf(" proto=%u", proto);
+ } else {
+ printf(" doi=ipsec");
+ printf(" proto=%s", PROTOIDSTR(proto));
+ }
+ printf(" spilen=%u", p->spi_size);
+ printf(" nspi=%u", ntohs(p->num_spi));
+ printf(" spi=");
+ q = (u_int8_t *)(p + 1);
+ for (i = 0; i < ntohs(p->num_spi); i++) {
+ if (i != 0)
+ printf(",");
+ rawprint((caddr_t)q, p->spi_size);
+ q += p->spi_size;
+ }
+ return q;
+}
+
+static u_char *
+isakmp_vid_print(struct isakmp_gen *ext, u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto)
+{
+ printf("%s:", NPSTR(ISAKMP_NPTYPE_VID));
+
+ printf(" len=%d", ntohs(ext->len) - 4);
+ if (2 < vflag && 4 < ntohs(ext->len)) {
+ printf(" ");
+ rawprint((caddr_t)(ext + 1), ntohs(ext->len) - 4);
+ }
+ return (u_char *)ext + ntohs(ext->len);
+}
+
+static u_char *
+isakmp_sub0_print(u_char np, struct isakmp_gen *ext, u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto)
+{
+ u_char *cp;
+
+ cp = (u_char *)ext;
+
+ if (NPFUNC(np))
+ cp = (*NPFUNC(np))(ext, ep, phase, doi, proto);
+ else {
+ printf("%s", NPSTR(np));
+ cp += ntohs(ext->len);
+ }
+ return cp;
+}
+
+static u_char *
+isakmp_sub_print(u_char np, struct isakmp_gen *ext, u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto)
+{
+ u_char *cp;
+ static int depth = 0;
+ int i;
+
+ cp = (u_char *)ext;
+
+ while (np) {
+ if (ep < (u_char *)ext + ntohs(ext->len)) {
+ printf(" [|%s]", NPSTR(np));
+ cp = ep + 1;
+ break;
+ }
+ depth++;
+ printf("\n");
+ for (i = 0; i < depth; i++)
+ printf(" ");
+ printf("(");
+ cp = isakmp_sub0_print(np, ext, ep, phase, doi, proto);
+ printf(")");
+ depth--;
+
+ np = ext->np;
+ ext = (struct isakmp_gen *)cp;
+ }
+ return cp;
+}
+
+static char *
+numstr(int x)
+{
+ static char buf[20];
+ snprintf(buf, sizeof(buf), "#%d", x);
+ return buf;
+}
-/*
- * Print isakmp requests
- */
void
-isakmp_print(register const u_char *cp, int length)
-{
- struct isakmp_header *ih;
- register const u_char *ep;
- int mode, version, leapind;
-
-#define TCHECK(var, l) if ((u_char *)&(var) > ep - l) goto trunc
-
- ih = (struct isakmp_header *)cp;
- /* Note funny sized packets */
- if (length < 20)
- {
- (void)printf(" [len=%d]", length);
- }
+isakmp_print(const u_char *bp, u_int length, const u_char *bp2)
+{
+ struct isakmp *base;
+ u_char *ep;
+ u_char np;
+ int i;
+ int phase;
+ int major, minor;
- /* 'ep' points to the end of avaible data. */
- ep = snapend;
+ base = (struct isakmp *)bp;
+ ep = (u_char *)snapend;
- printf(" isakmp");
+ if ((struct isakmp *)ep < base + 1) {
+ printf("[|isakmp]");
+ return;
+ }
- printf(" v%d.%d\n\t", ih->mjver, ih->mnver);
+ printf("isakmp");
+ if (vflag) {
+ major = (base->vers & ISAKMP_VERS_MAJOR)
+ >> ISAKMP_VERS_MAJOR_SHIFT;
+ minor = (base->vers & ISAKMP_VERS_MINOR)
+ >> ISAKMP_VERS_MINOR_SHIFT;
+ printf(" %d.%d", major, minor);
+ }
- if(ih->flags & FLAGS_ENCRYPTION)
- {
- printf(" encrypted");
- }
-
- if(ih->flags & FLAGS_COMMIT)
- {
- printf(" commit");
- }
+ if (vflag) {
+ printf(" msgid ");
+ rawprint((caddr_t)&base->msgid, sizeof(base->msgid));
+ }
+
+ if (1 < vflag) {
+ printf(" cookie ");
+ rawprint((caddr_t)&base->i_ck, sizeof(base->i_ck));
+ printf("->");
+ rawprint((caddr_t)&base->r_ck, sizeof(base->r_ck));
+ }
+ printf(":");
+
+ phase = (*(u_int32_t *)base->msgid == 0) ? 1 : 2;
+ if (phase == 1)
+ printf(" phase %d", phase);
+ else
+ printf(" phase %d/others", phase);
+
+ i = cookie_find(&base->i_ck);
+ if (i < 0) {
+ if (iszero((u_char *)&base->r_ck, sizeof(base->r_ck))) {
+ /* the first packet */
+ printf(" I");
+ if (bp2)
+ cookie_record(&base->i_ck, bp2);
+ } else
+ printf(" ?");
+ } else {
+ if (bp2 && cookie_isinitiator(i, bp2))
+ printf(" I");
+ else if (bp2 && cookie_isresponder(i, bp2))
+ printf(" R");
+ else
+ printf(" ?");
+ }
+
+ printf(" %s", ETYPESTR(base->etype));
+ if (base->flags) {
+ printf("[%s%s]", base->flags & ISAKMP_FLAG_E ? "E" : "",
+ base->flags & ISAKMP_FLAG_C ? "C" : "");
+ }
+ printf(":");
- printf(" from:%02x%02x%02x%02x to: %02x%02x%02x%02x",
- ih->init_cookie[0], ih->init_cookie[1],
- ih->init_cookie[2], ih->init_cookie[3],
- ih->resp_cookie[0], ih->resp_cookie[1],
- ih->resp_cookie[2], ih->resp_cookie[3]);
-
- TCHECK(ih->msgid, sizeof(ih->msgid));
- printf(" msgid:%02x%02x%02x%02x",
- ih->msgid[0], ih->msgid[1],
- ih->msgid[2], ih->msgid[3]);
-
- TCHECK(ih->length, sizeof(ih->length));
- printf(" length %d", ntohl(ih->length));
-
- if(ih->mjver > 1)
{
- printf(" new version");
- return;
+ struct isakmp_gen *ext;
+ int nparen;
+
+#define CHECKLEN(p, np) \
+ if (ep < (u_char *)(p)) { \
+ printf(" [|%s]", NPSTR(np)); \
+ goto done; \
+ }
+
+ /* regardless of phase... */
+ if (base->flags & ISAKMP_FLAG_E) {
+ /*
+ * encrypted, nothing we can do right now.
+ * we hope to decrypt the packet in the future...
+ */
+ printf(" [|%s]", NPSTR(base->np));
+ goto done;
+ }
+
+ nparen = 0;
+ CHECKLEN(base + 1, base->np)
+
+ np = base->np;
+ ext = (struct isakmp_gen *)(base + 1);
+ isakmp_sub_print(np, ext, ep, phase, 0, 0);
}
-trunc:
- fputs(" [|isakmp]", stdout);
+done:
+ if (vflag) {
+ if (ntohl(base->len) != length) {
+ printf(" (len mismatch: isakmp %u/ip %d)",
+ (u_int32_t)ntohl(base->len), length);
+ }
+ }
}
projects / tcpdump / blobdiff