1381 lines
34 KiB
C
1381 lines
34 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef lint
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static const char rcsid[] _U_ =
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"@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.36.2.11 2004/03/24 01:32:42 guy Exp $ (LBL)";
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#endif
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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 <tcpdump-stdinc.h>
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#include <string.h>
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#include <stdio.h>
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#include "isakmp.h"
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#include "ipsec_doi.h"
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#include "oakley.h"
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#include "interface.h"
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#include "addrtoname.h"
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#include "extract.h" /* must come after interface.h */
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#include "ip.h"
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#ifdef INET6
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#include "ip6.h"
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#endif
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#ifndef HAVE_SOCKADDR_STORAGE
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#define sockaddr_storage sockaddr
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#endif
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static const u_char *isakmp_sa_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_p_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_t_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_ke_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_id_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_cert_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_cr_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_sig_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_hash_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_nonce_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_n_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_d_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_vid_print(const struct isakmp_gen *,
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u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_sub0_print(u_char, const struct isakmp_gen *,
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const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static const u_char *isakmp_sub_print(u_char, const struct isakmp_gen *,
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const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
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static char *numstr(int);
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static void safememcpy(void *, const void *, size_t);
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#define MAXINITIATORS 20
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int ninitiator = 0;
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struct {
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cookie_t initiator;
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struct sockaddr_storage iaddr;
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struct sockaddr_storage raddr;
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} cookiecache[MAXINITIATORS];
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/* protocol id */
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static const char *protoidstr[] = {
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NULL, "isakmp", "ipsec-ah", "ipsec-esp", "ipcomp",
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};
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/* isakmp->np */
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static const char *npstr[] = {
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"none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash",
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"sig", "nonce", "n", "d", "vid"
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};
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/* isakmp->np */
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static const u_char *(*npfunc[])(const struct isakmp_gen *, u_int,
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const u_char *, u_int32_t, u_int32_t, u_int32_t, int) = {
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NULL,
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isakmp_sa_print,
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isakmp_p_print,
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isakmp_t_print,
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isakmp_ke_print,
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isakmp_id_print,
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isakmp_cert_print,
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isakmp_cr_print,
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isakmp_hash_print,
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isakmp_sig_print,
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isakmp_nonce_print,
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isakmp_n_print,
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isakmp_d_print,
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isakmp_vid_print,
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};
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/* isakmp->etype */
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static const char *etypestr[] = {
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"none", "base", "ident", "auth", "agg", "inf", NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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"oakley-quick", "oakley-newgroup",
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};
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#define STR_OR_ID(x, tab) \
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(((x) < sizeof(tab)/sizeof(tab[0]) && tab[(x)]) ? tab[(x)] : numstr(x))
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#define PROTOIDSTR(x) STR_OR_ID(x, protoidstr)
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#define NPSTR(x) STR_OR_ID(x, npstr)
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#define ETYPESTR(x) STR_OR_ID(x, etypestr)
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#define NPFUNC(x) \
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(((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \
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? npfunc[(x)] : NULL)
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static int
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iszero(u_char *p, size_t l)
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{
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while (l--) {
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if (*p++)
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return 0;
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}
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return 1;
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}
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/* find cookie from initiator cache */
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static int
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cookie_find(cookie_t *in)
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{
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int i;
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for (i = 0; i < MAXINITIATORS; i++) {
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if (memcmp(in, &cookiecache[i].initiator, sizeof(*in)) == 0)
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return i;
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}
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return -1;
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}
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/* record initiator */
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static void
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cookie_record(cookie_t *in, const u_char *bp2)
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{
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int i;
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struct ip *ip;
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struct sockaddr_in *sin;
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#ifdef INET6
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struct ip6_hdr *ip6;
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struct sockaddr_in6 *sin6;
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#endif
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i = cookie_find(in);
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if (0 <= i) {
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ninitiator = (i + 1) % MAXINITIATORS;
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return;
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}
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ip = (struct ip *)bp2;
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switch (IP_V(ip)) {
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case 4:
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memset(&cookiecache[ninitiator].iaddr, 0,
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sizeof(cookiecache[ninitiator].iaddr));
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memset(&cookiecache[ninitiator].raddr, 0,
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sizeof(cookiecache[ninitiator].raddr));
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sin = (struct sockaddr_in *)&cookiecache[ninitiator].iaddr;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin->sin_len = sizeof(struct sockaddr_in);
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#endif
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sin->sin_family = AF_INET;
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memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
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sin = (struct sockaddr_in *)&cookiecache[ninitiator].raddr;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin->sin_len = sizeof(struct sockaddr_in);
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#endif
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sin->sin_family = AF_INET;
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memcpy(&sin->sin_addr, &ip->ip_dst, sizeof(ip->ip_dst));
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break;
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#ifdef INET6
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case 6:
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memset(&cookiecache[ninitiator].iaddr, 0,
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sizeof(cookiecache[ninitiator].iaddr));
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memset(&cookiecache[ninitiator].raddr, 0,
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sizeof(cookiecache[ninitiator].raddr));
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ip6 = (struct ip6_hdr *)bp2;
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sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].iaddr;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin6->sin6_len = sizeof(struct sockaddr_in6);
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#endif
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sin6->sin6_family = AF_INET6;
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memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
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sin6 = (struct sockaddr_in6 *)&cookiecache[ninitiator].raddr;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin6->sin6_len = sizeof(struct sockaddr_in6);
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#endif
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sin6->sin6_family = AF_INET6;
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memcpy(&sin6->sin6_addr, &ip6->ip6_dst, sizeof(ip6->ip6_dst));
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break;
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#endif
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default:
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return;
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}
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memcpy(&cookiecache[ninitiator].initiator, in, sizeof(*in));
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ninitiator = (ninitiator + 1) % MAXINITIATORS;
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}
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#define cookie_isinitiator(x, y) cookie_sidecheck((x), (y), 1)
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#define cookie_isresponder(x, y) cookie_sidecheck((x), (y), 0)
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static int
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cookie_sidecheck(int i, const u_char *bp2, int initiator)
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{
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struct sockaddr_storage ss;
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struct sockaddr *sa;
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struct ip *ip;
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struct sockaddr_in *sin;
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#ifdef INET6
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struct ip6_hdr *ip6;
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struct sockaddr_in6 *sin6;
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#endif
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int salen;
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memset(&ss, 0, sizeof(ss));
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ip = (struct ip *)bp2;
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switch (IP_V(ip)) {
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case 4:
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sin = (struct sockaddr_in *)&ss;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin->sin_len = sizeof(struct sockaddr_in);
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#endif
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sin->sin_family = AF_INET;
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memcpy(&sin->sin_addr, &ip->ip_src, sizeof(ip->ip_src));
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break;
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#ifdef INET6
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case 6:
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ip6 = (struct ip6_hdr *)bp2;
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sin6 = (struct sockaddr_in6 *)&ss;
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#ifdef HAVE_SOCKADDR_SA_LEN
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sin6->sin6_len = sizeof(struct sockaddr_in6);
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#endif
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sin6->sin6_family = AF_INET6;
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memcpy(&sin6->sin6_addr, &ip6->ip6_src, sizeof(ip6->ip6_src));
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break;
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#endif
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default:
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return 0;
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}
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sa = (struct sockaddr *)&ss;
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if (initiator) {
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if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].iaddr)->sa_family)
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return 0;
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#ifdef HAVE_SOCKADDR_SA_LEN
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salen = sa->sa_len;
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#else
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#ifdef INET6
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if (sa->sa_family == AF_INET6)
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salen = sizeof(struct sockaddr_in6);
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else
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salen = sizeof(struct sockaddr);
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#else
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salen = sizeof(struct sockaddr);
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#endif
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#endif
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if (memcmp(&ss, &cookiecache[i].iaddr, salen) == 0)
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return 1;
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} else {
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if (sa->sa_family != ((struct sockaddr *)&cookiecache[i].raddr)->sa_family)
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return 0;
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#ifdef HAVE_SOCKADDR_SA_LEN
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salen = sa->sa_len;
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#else
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#ifdef INET6
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if (sa->sa_family == AF_INET6)
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salen = sizeof(struct sockaddr_in6);
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else
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salen = sizeof(struct sockaddr);
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#else
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salen = sizeof(struct sockaddr);
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#endif
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#endif
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if (memcmp(&ss, &cookiecache[i].raddr, salen) == 0)
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return 1;
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}
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return 0;
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}
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static int
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rawprint(caddr_t loc, size_t len)
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{
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static u_char *p;
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size_t i;
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TCHECK2(*loc, len);
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p = (u_char *)loc;
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for (i = 0; i < len; i++)
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printf("%02x", p[i] & 0xff);
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return 1;
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trunc:
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return 0;
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}
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struct attrmap {
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const char *type;
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u_int nvalue;
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const char *value[30]; /*XXX*/
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};
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static const u_char *
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isakmp_attrmap_print(const u_char *p, const u_char *ep,
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const struct attrmap *map, size_t nmap)
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{
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u_int16_t *q;
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int totlen;
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u_int32_t t, v;
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q = (u_int16_t *)p;
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if (p[0] & 0x80)
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totlen = 4;
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else
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totlen = 4 + EXTRACT_16BITS(&q[1]);
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if (ep < p + totlen) {
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printf("[|attr]");
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return ep + 1;
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}
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printf("(");
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t = EXTRACT_16BITS(&q[0]) & 0x7fff;
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if (map && t < nmap && map[t].type)
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printf("type=%s ", map[t].type);
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else
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printf("type=#%d ", t);
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if (p[0] & 0x80) {
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printf("value=");
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v = EXTRACT_16BITS(&q[1]);
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if (map && t < nmap && v < map[t].nvalue && map[t].value[v])
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printf("%s", map[t].value[v]);
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else
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rawprint((caddr_t)&q[1], 2);
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} else {
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printf("len=%d value=", EXTRACT_16BITS(&q[1]));
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rawprint((caddr_t)&p[4], EXTRACT_16BITS(&q[1]));
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}
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printf(")");
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return p + totlen;
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}
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static const u_char *
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isakmp_attr_print(const u_char *p, const u_char *ep)
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{
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u_int16_t *q;
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int totlen;
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u_int32_t t;
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q = (u_int16_t *)p;
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if (p[0] & 0x80)
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totlen = 4;
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else
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totlen = 4 + EXTRACT_16BITS(&q[1]);
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if (ep < p + totlen) {
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printf("[|attr]");
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return ep + 1;
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}
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printf("(");
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t = EXTRACT_16BITS(&q[0]) & 0x7fff;
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printf("type=#%d ", t);
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if (p[0] & 0x80) {
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printf("value=");
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t = q[1];
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rawprint((caddr_t)&q[1], 2);
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} else {
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printf("len=%d value=", EXTRACT_16BITS(&q[1]));
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rawprint((caddr_t)&p[2], EXTRACT_16BITS(&q[1]));
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}
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printf(")");
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return p + totlen;
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}
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static const u_char *
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isakmp_sa_print(const struct isakmp_gen *ext, u_int item_len,
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const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
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u_int32_t proto0, int depth)
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{
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const struct isakmp_pl_sa *p;
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struct isakmp_pl_sa sa;
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const u_int32_t *q;
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u_int32_t doi, sit, ident;
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const u_char *cp, *np;
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int t;
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printf("%s:", NPSTR(ISAKMP_NPTYPE_SA));
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p = (struct isakmp_pl_sa *)ext;
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TCHECK(*p);
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safememcpy(&sa, ext, sizeof(sa));
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doi = ntohl(sa.doi);
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sit = ntohl(sa.sit);
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if (doi != 1) {
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printf(" doi=%d", doi);
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printf(" situation=%u", (u_int32_t)ntohl(sa.sit));
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return (u_char *)(p + 1);
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}
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printf(" doi=ipsec");
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q = (u_int32_t *)&sa.sit;
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printf(" situation=");
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t = 0;
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if (sit & 0x01) {
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printf("identity");
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t++;
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}
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if (sit & 0x02) {
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printf("%ssecrecy", t ? "+" : "");
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t++;
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}
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if (sit & 0x04)
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printf("%sintegrity", t ? "+" : "");
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np = (u_char *)ext + sizeof(sa);
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if (sit != 0x01) {
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TCHECK2(*(ext + 1), sizeof(ident));
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safememcpy(&ident, ext + 1, sizeof(ident));
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printf(" ident=%u", (u_int32_t)ntohl(ident));
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np += sizeof(ident);
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}
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ext = (struct isakmp_gen *)np;
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TCHECK(*ext);
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cp = isakmp_sub_print(ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
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depth);
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return cp;
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trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_SA));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_p_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase, u_int32_t doi0,
|
|
u_int32_t proto0 _U_, int depth)
|
|
{
|
|
const struct isakmp_pl_p *p;
|
|
struct isakmp_pl_p prop;
|
|
const u_char *cp;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_P));
|
|
|
|
p = (struct isakmp_pl_p *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&prop, ext, sizeof(prop));
|
|
printf(" #%d protoid=%s transform=%d",
|
|
prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t);
|
|
if (prop.spi_size) {
|
|
printf(" spi=");
|
|
if (!rawprint((caddr_t)(p + 1), prop.spi_size))
|
|
goto trunc;
|
|
}
|
|
|
|
ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size);
|
|
TCHECK(*ext);
|
|
|
|
cp = isakmp_sub_print(ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
|
|
prop.prot_id, depth);
|
|
|
|
return cp;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_P));
|
|
return NULL;
|
|
}
|
|
|
|
static const char *isakmp_p_map[] = {
|
|
NULL, "ike",
|
|
};
|
|
|
|
static const char *ah_p_map[] = {
|
|
NULL, "(reserved)", "md5", "sha", "1des",
|
|
"sha2-256", "sha2-384", "sha2-512",
|
|
};
|
|
|
|
static const char *esp_p_map[] = {
|
|
NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast",
|
|
"blowfish", "3idea", "1des-iv32", "rc4", "null", "aes"
|
|
};
|
|
|
|
static const char *ipcomp_p_map[] = {
|
|
NULL, "oui", "deflate", "lzs",
|
|
};
|
|
|
|
const struct attrmap ipsec_t_map[] = {
|
|
{ NULL, 0, { NULL } },
|
|
{ "lifetype", 3, { NULL, "sec", "kb", }, },
|
|
{ "life", 0, { NULL } },
|
|
{ "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, { NULL } },
|
|
{ "rounds", 0, { NULL } },
|
|
{ "dictsize", 0, { NULL } },
|
|
{ "privalg", 0, { NULL } },
|
|
};
|
|
|
|
const struct attrmap oakley_t_map[] = {
|
|
{ NULL, 0, { NULL } },
|
|
{ "enc", 8, { NULL, "1des", "idea", "blowfish", "rc5",
|
|
"3des", "cast", "aes", }, },
|
|
{ "hash", 7, { NULL, "md5", "sha1", "tiger",
|
|
"sha2-256", "sha2-384", "sha2-512", }, },
|
|
{ "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, { NULL } },
|
|
{ "group gen1", 0, { NULL } },
|
|
{ "group gen2", 0, { NULL } },
|
|
{ "group curve A", 0, { NULL } },
|
|
{ "group curve B", 0, { NULL } },
|
|
{ "lifetype", 3, { NULL, "sec", "kb", }, },
|
|
{ "lifeduration", 0, { NULL } },
|
|
{ "prf", 0, { NULL } },
|
|
{ "keylen", 0, { NULL } },
|
|
{ "field", 0, { NULL } },
|
|
{ "order", 0, { NULL } },
|
|
};
|
|
|
|
static const u_char *
|
|
isakmp_t_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto, int depth _U_)
|
|
{
|
|
const struct isakmp_pl_t *p;
|
|
struct isakmp_pl_t t;
|
|
const u_char *cp;
|
|
const char *idstr;
|
|
const struct attrmap *map;
|
|
size_t nmap;
|
|
const u_char *ep2;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_T));
|
|
|
|
p = (struct isakmp_pl_t *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&t, ext, sizeof(t));
|
|
|
|
switch (proto) {
|
|
case 1:
|
|
idstr = STR_OR_ID(t.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(t.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(t.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(t.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 ", t.t_no, idstr);
|
|
else
|
|
printf(" #%d id=%d ", t.t_no, t.t_id);
|
|
cp = (u_char *)(p + 1);
|
|
ep2 = (u_char *)p + item_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;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_T));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_ke_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
struct isakmp_gen e;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_KE));
|
|
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
printf(" key len=%d", ntohs(e.len) - 4);
|
|
if (2 < vflag && 4 < ntohs(e.len)) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + ntohs(e.len);
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_KE));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_id_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
#define USE_IPSECDOI_IN_PHASE1 1
|
|
const struct isakmp_pl_id *p;
|
|
struct isakmp_pl_id id;
|
|
static const char *idtypestr[] = {
|
|
"IPv4", "IPv4net", "IPv6", "IPv6net",
|
|
};
|
|
static const char *ipsecidtypestr[] = {
|
|
NULL, "IPv4", "FQDN", "user FQDN", "IPv4net", "IPv6",
|
|
"IPv6net", "IPv4range", "IPv6range", "ASN1 DN", "ASN1 GN",
|
|
"keyid",
|
|
};
|
|
int len;
|
|
const u_char *data;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_ID));
|
|
|
|
p = (struct isakmp_pl_id *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&id, ext, sizeof(id));
|
|
if (sizeof(*p) < item_len) {
|
|
data = (u_char *)(p + 1);
|
|
len = item_len - sizeof(*p);
|
|
} else {
|
|
data = NULL;
|
|
len = 0;
|
|
}
|
|
|
|
#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(id.d.id_type, idtypestr));
|
|
printf(" doi_data=%u",
|
|
(u_int32_t)(ntohl(id.d.doi_data) & 0xffffff));
|
|
break;
|
|
|
|
#ifdef USE_IPSECDOI_IN_PHASE1
|
|
case 1:
|
|
#endif
|
|
case 2:
|
|
{
|
|
const struct ipsecdoi_id *p;
|
|
struct ipsecdoi_id id;
|
|
struct protoent *pe;
|
|
|
|
p = (struct ipsecdoi_id *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&id, ext, sizeof(id));
|
|
printf(" idtype=%s", STR_OR_ID(id.type, ipsecidtypestr));
|
|
if (id.proto_id) {
|
|
#ifndef WIN32
|
|
setprotoent(1);
|
|
#endif /* WIN32 */
|
|
pe = getprotobynumber(id.proto_id);
|
|
if (pe)
|
|
printf(" protoid=%s", pe->p_name);
|
|
#ifndef WIN32
|
|
endprotoent();
|
|
#endif /* WIN32 */
|
|
} else {
|
|
/* it DOES NOT mean IPPROTO_IP! */
|
|
printf(" protoid=%s", "0");
|
|
}
|
|
printf(" port=%d", ntohs(id.port));
|
|
if (!len)
|
|
break;
|
|
if (data == NULL)
|
|
goto trunc;
|
|
TCHECK2(*data, len);
|
|
switch (id.type) {
|
|
case IPSECDOI_ID_IPV4_ADDR:
|
|
if (len < 4)
|
|
printf(" len=%d [bad: < 4]", len);
|
|
else
|
|
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++)
|
|
safeputchar(data[i]);
|
|
len = 0;
|
|
break;
|
|
}
|
|
case IPSECDOI_ID_IPV4_ADDR_SUBNET:
|
|
{
|
|
const u_char *mask;
|
|
if (len < 8)
|
|
printf(" len=%d [bad: < 8]", len);
|
|
else {
|
|
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:
|
|
if (len < 16)
|
|
printf(" len=%d [bad: < 16]", len);
|
|
else
|
|
printf(" len=%d %s", len, ip6addr_string(data));
|
|
len = 0;
|
|
break;
|
|
case IPSECDOI_ID_IPV6_ADDR_SUBNET:
|
|
{
|
|
const u_int32_t *mask;
|
|
if (len < 20)
|
|
printf(" len=%d [bad: < 20]", len);
|
|
else {
|
|
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:
|
|
if (len < 8)
|
|
printf(" len=%d [bad: < 8]", len);
|
|
else {
|
|
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:
|
|
if (len < 32)
|
|
printf(" len=%d [bad: < 32]", len);
|
|
else {
|
|
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) {
|
|
printf(" len=%d", len);
|
|
if (2 < vflag) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)data, len))
|
|
goto trunc;
|
|
}
|
|
}
|
|
return (u_char *)ext + item_len;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_ID));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_cert_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi0 _U_,
|
|
u_int32_t proto0 _U_, int depth _U_)
|
|
{
|
|
const struct isakmp_pl_cert *p;
|
|
struct isakmp_pl_cert cert;
|
|
static const char *certstr[] = {
|
|
"none", "pkcs7", "pgp", "dns",
|
|
"x509sign", "x509ke", "kerberos", "crl",
|
|
"arl", "spki", "x509attr",
|
|
};
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_CERT));
|
|
|
|
p = (struct isakmp_pl_cert *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&cert, ext, sizeof(cert));
|
|
printf(" len=%d", item_len - 4);
|
|
printf(" type=%s", STR_OR_ID((cert.encode), certstr));
|
|
if (2 < vflag && 4 < item_len) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), item_len - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + item_len;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_CERT));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_cr_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi0 _U_,
|
|
u_int32_t proto0 _U_, int depth _U_)
|
|
{
|
|
const struct isakmp_pl_cert *p;
|
|
struct isakmp_pl_cert cert;
|
|
static const char *certstr[] = {
|
|
"none", "pkcs7", "pgp", "dns",
|
|
"x509sign", "x509ke", "kerberos", "crl",
|
|
"arl", "spki", "x509attr",
|
|
};
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_CR));
|
|
|
|
p = (struct isakmp_pl_cert *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&cert, ext, sizeof(cert));
|
|
printf(" len=%d", item_len - 4);
|
|
printf(" type=%s", STR_OR_ID((cert.encode), certstr));
|
|
if (2 < vflag && 4 < item_len) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), item_len - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + item_len;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_CR));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_hash_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
struct isakmp_gen e;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_HASH));
|
|
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
printf(" len=%d", ntohs(e.len) - 4);
|
|
if (2 < vflag && 4 < ntohs(e.len)) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + ntohs(e.len);
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_HASH));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_sig_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
struct isakmp_gen e;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_SIG));
|
|
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
printf(" len=%d", ntohs(e.len) - 4);
|
|
if (2 < vflag && 4 < ntohs(e.len)) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + ntohs(e.len);
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_SIG));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_nonce_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
struct isakmp_gen e;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_NONCE));
|
|
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
printf(" n len=%d", ntohs(e.len) - 4);
|
|
if (2 < vflag && 4 < ntohs(e.len)) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + ntohs(e.len);
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_n_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
|
|
u_int32_t proto0 _U_, int depth)
|
|
{
|
|
struct isakmp_pl_n *p, n;
|
|
const u_char *cp;
|
|
u_char *ep2;
|
|
u_int32_t doi;
|
|
u_int32_t proto;
|
|
static const char *notify_error_str[] = {
|
|
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 const char *ipsec_notify_error_str[] = {
|
|
"RESERVED",
|
|
};
|
|
static const char *notify_status_str[] = {
|
|
"CONNECTED",
|
|
};
|
|
static const char *ipsec_notify_status_str[] = {
|
|
"RESPONDER-LIFETIME", "REPLAY-STATUS",
|
|
"INITIAL-CONTACT",
|
|
};
|
|
/* NOTE: these macro must be called with x in proper range */
|
|
|
|
/* 0 - 8191 */
|
|
#define NOTIFY_ERROR_STR(x) \
|
|
STR_OR_ID((x), notify_error_str)
|
|
|
|
/* 8192 - 16383 */
|
|
#define IPSEC_NOTIFY_ERROR_STR(x) \
|
|
STR_OR_ID((u_int)((x) - 8192), ipsec_notify_error_str)
|
|
|
|
/* 16384 - 24575 */
|
|
#define NOTIFY_STATUS_STR(x) \
|
|
STR_OR_ID((u_int)((x) - 16384), notify_status_str)
|
|
|
|
/* 24576 - 32767 */
|
|
#define IPSEC_NOTIFY_STATUS_STR(x) \
|
|
STR_OR_ID((u_int)((x) - 24576), ipsec_notify_status_str)
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_N));
|
|
|
|
p = (struct isakmp_pl_n *)ext;
|
|
TCHECK(*p);
|
|
safememcpy(&n, ext, sizeof(n));
|
|
doi = ntohl(n.doi);
|
|
proto = n.prot_id;
|
|
if (doi != 1) {
|
|
printf(" doi=%d", doi);
|
|
printf(" proto=%d", proto);
|
|
if (ntohs(n.type) < 8192)
|
|
printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
|
|
else if (ntohs(n.type) < 16384)
|
|
printf(" type=%s", numstr(ntohs(n.type)));
|
|
else if (ntohs(n.type) < 24576)
|
|
printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
|
|
else
|
|
printf(" type=%s", numstr(ntohs(n.type)));
|
|
if (n.spi_size) {
|
|
printf(" spi=");
|
|
if (!rawprint((caddr_t)(p + 1), n.spi_size))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)(p + 1) + n.spi_size;
|
|
}
|
|
|
|
printf(" doi=ipsec");
|
|
printf(" proto=%s", PROTOIDSTR(proto));
|
|
if (ntohs(n.type) < 8192)
|
|
printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
|
|
else if (ntohs(n.type) < 16384)
|
|
printf(" type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type)));
|
|
else if (ntohs(n.type) < 24576)
|
|
printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
|
|
else if (ntohs(n.type) < 32768)
|
|
printf(" type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type)));
|
|
else
|
|
printf(" type=%s", numstr(ntohs(n.type)));
|
|
if (n.spi_size) {
|
|
printf(" spi=");
|
|
if (!rawprint((caddr_t)(p + 1), n.spi_size))
|
|
goto trunc;
|
|
}
|
|
|
|
cp = (u_char *)(p + 1) + n.spi_size;
|
|
ep2 = (u_char *)p + item_len;
|
|
|
|
if (cp < ep) {
|
|
printf(" orig=(");
|
|
switch (ntohs(n.type)) {
|
|
case IPSECDOI_NTYPE_RESPONDER_LIFETIME:
|
|
{
|
|
const 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:
|
|
if (isakmp_sub_print(ISAKMP_NPTYPE_SA,
|
|
(struct isakmp_gen *)cp, ep, phase, doi, proto,
|
|
depth) == NULL)
|
|
return NULL;
|
|
break;
|
|
default:
|
|
/* NULL is dummy */
|
|
isakmp_print(cp, item_len - sizeof(*p) - n.spi_size,
|
|
NULL);
|
|
}
|
|
printf(")");
|
|
}
|
|
return (u_char *)ext + item_len;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_N));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_d_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi0 _U_,
|
|
u_int32_t proto0 _U_, int depth _U_)
|
|
{
|
|
const struct isakmp_pl_d *p;
|
|
struct isakmp_pl_d d;
|
|
const 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;
|
|
TCHECK(*p);
|
|
safememcpy(&d, ext, sizeof(d));
|
|
doi = ntohl(d.doi);
|
|
proto = d.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", d.spi_size);
|
|
printf(" nspi=%u", ntohs(d.num_spi));
|
|
printf(" spi=");
|
|
q = (u_int8_t *)(p + 1);
|
|
for (i = 0; i < ntohs(d.num_spi); i++) {
|
|
if (i != 0)
|
|
printf(",");
|
|
if (!rawprint((caddr_t)q, d.spi_size))
|
|
goto trunc;
|
|
q += d.spi_size;
|
|
}
|
|
return q;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_D));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_vid_print(const struct isakmp_gen *ext, u_int item_len,
|
|
const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
|
|
u_int32_t proto _U_, int depth _U_)
|
|
{
|
|
struct isakmp_gen e;
|
|
|
|
printf("%s:", NPSTR(ISAKMP_NPTYPE_VID));
|
|
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
printf(" len=%d", ntohs(e.len) - 4);
|
|
if (2 < vflag && 4 < ntohs(e.len)) {
|
|
printf(" ");
|
|
if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
|
|
goto trunc;
|
|
}
|
|
return (u_char *)ext + ntohs(e.len);
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_VID));
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_sub0_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
|
|
u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
|
|
{
|
|
const u_char *cp;
|
|
struct isakmp_gen e;
|
|
u_int item_len;
|
|
|
|
cp = (u_char *)ext;
|
|
TCHECK(*ext);
|
|
safememcpy(&e, ext, sizeof(e));
|
|
|
|
/*
|
|
* Since we can't have a payload length of less than 4 bytes,
|
|
* we need to bail out here if the generic header is nonsensical
|
|
* or truncated, otherwise we could loop forever processing
|
|
* zero-length items or otherwise misdissect the packet.
|
|
*/
|
|
item_len = ntohs(e.len);
|
|
if (item_len <= 4)
|
|
return NULL;
|
|
|
|
if (NPFUNC(np)) {
|
|
/*
|
|
* XXX - what if item_len is too short, or too long,
|
|
* for this payload type?
|
|
*/
|
|
cp = (*NPFUNC(np))(ext, item_len, ep, phase, doi, proto, depth);
|
|
} else {
|
|
printf("%s", NPSTR(np));
|
|
cp += item_len;
|
|
}
|
|
|
|
return cp;
|
|
trunc:
|
|
printf(" [|isakmp]");
|
|
return NULL;
|
|
}
|
|
|
|
static const u_char *
|
|
isakmp_sub_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
|
|
u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
|
|
{
|
|
const u_char *cp;
|
|
int i;
|
|
struct isakmp_gen e;
|
|
|
|
cp = (const u_char *)ext;
|
|
|
|
while (np) {
|
|
TCHECK(*ext);
|
|
|
|
safememcpy(&e, ext, sizeof(e));
|
|
|
|
TCHECK2(*ext, ntohs(e.len));
|
|
|
|
depth++;
|
|
printf("\n");
|
|
for (i = 0; i < depth; i++)
|
|
printf(" ");
|
|
printf("(");
|
|
cp = isakmp_sub0_print(np, ext, ep, phase, doi, proto, depth);
|
|
printf(")");
|
|
depth--;
|
|
|
|
if (cp == NULL) {
|
|
/* Zero-length subitem */
|
|
return NULL;
|
|
}
|
|
|
|
np = e.np;
|
|
ext = (struct isakmp_gen *)cp;
|
|
}
|
|
return cp;
|
|
trunc:
|
|
printf(" [|%s]", NPSTR(np));
|
|
return NULL;
|
|
}
|
|
|
|
static char *
|
|
numstr(int x)
|
|
{
|
|
static char buf[20];
|
|
snprintf(buf, sizeof(buf), "#%d", x);
|
|
return buf;
|
|
}
|
|
|
|
/*
|
|
* some compiler tries to optimize memcpy(), using the alignment constraint
|
|
* on the argument pointer type. by using this function, we try to avoid the
|
|
* optimization.
|
|
*/
|
|
static void
|
|
safememcpy(void *p, const void *q, size_t l)
|
|
{
|
|
memcpy(p, q, l);
|
|
}
|
|
|
|
void
|
|
isakmp_print(const u_char *bp, u_int length, const u_char *bp2)
|
|
{
|
|
const struct isakmp *p;
|
|
struct isakmp base;
|
|
const u_char *ep;
|
|
u_char np;
|
|
int i;
|
|
int phase;
|
|
int major, minor;
|
|
|
|
p = (const struct isakmp *)bp;
|
|
ep = snapend;
|
|
|
|
if ((struct isakmp *)ep < p + 1) {
|
|
printf("[|isakmp]");
|
|
return;
|
|
}
|
|
|
|
safememcpy(&base, p, sizeof(base));
|
|
|
|
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 (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" : "");
|
|
}
|
|
|
|
if (vflag) {
|
|
const struct isakmp_gen *ext;
|
|
int nparen;
|
|
|
|
#define CHECKLEN(p, np) \
|
|
if (ep < (u_char *)(p)) { \
|
|
printf(" [|%s]", NPSTR(np)); \
|
|
goto done; \
|
|
}
|
|
|
|
printf(":");
|
|
|
|
/* 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(" [encrypted %s]", NPSTR(base.np));
|
|
goto done;
|
|
}
|
|
|
|
nparen = 0;
|
|
CHECKLEN(p + 1, base.np)
|
|
|
|
np = base.np;
|
|
ext = (struct isakmp_gen *)(p + 1);
|
|
isakmp_sub_print(np, ext, ep, phase, 0, 0, 0);
|
|
}
|
|
|
|
done:
|
|
if (vflag) {
|
|
if (ntohl(base.len) != length) {
|
|
printf(" (len mismatch: isakmp %u/ip %u)",
|
|
(u_int32_t)ntohl(base.len), length);
|
|
}
|
|
}
|
|
}
|