316 lines
11 KiB
C
316 lines
11 KiB
C
/* $NetBSD: ipsec.c,v 1.10 2003/08/07 11:15:19 agc Exp $ */
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/* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, 1998, and 1999 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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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. 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 University 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 REGENTS 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 REGENTS 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94";
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#else
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#ifdef __NetBSD__
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__RCSID("$NetBSD: ipsec.c,v 1.10 2003/08/07 11:15:19 agc Exp $");
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#endif
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#ifdef IPSEC
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#include <netinet6/ipsec.h>
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#include <netkey/keysock.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "netstat.h"
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#ifdef IPSEC
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struct val2str {
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int val;
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const char *str;
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};
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static struct val2str ipsec_ahnames[] = {
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{ SADB_AALG_NONE, "none", },
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{ SADB_AALG_MD5HMAC, "hmac-md5", },
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{ SADB_AALG_SHA1HMAC, "hmac-sha1", },
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{ SADB_X_AALG_MD5, "md5", },
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{ SADB_X_AALG_SHA, "sha", },
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{ SADB_X_AALG_NULL, "null", },
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{ SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
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{ SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
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{ SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
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{ SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
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{ SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
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{ -1, NULL },
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};
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static struct val2str ipsec_espnames[] = {
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{ SADB_EALG_NONE, "none", },
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{ SADB_EALG_DESCBC, "des-cbc", },
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{ SADB_EALG_3DESCBC, "3des-cbc", },
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{ SADB_EALG_NULL, "null", },
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{ SADB_X_EALG_CAST128CBC, "cast128-cbc", },
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{ SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
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{ SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
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{ SADB_X_EALG_AESCTR, "aes-ctr", },
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{ -1, NULL },
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};
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static struct val2str ipsec_compnames[] = {
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{ SADB_X_CALG_NONE, "none", },
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{ SADB_X_CALG_OUI, "oui", },
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{ SADB_X_CALG_DEFLATE, "deflate", },
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{ SADB_X_CALG_LZS, "lzs", },
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{ -1, NULL },
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};
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static const char *pfkey_msgtypenames[] = {
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"reserved", "getspi", "update", "add", "delete",
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"get", "acquire", "register", "expire", "flush",
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"dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd",
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"x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush",
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"x_spdsetidx", "x_spdexpire", "x_spddelete2"
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};
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static struct ipsecstat ipsecstat;
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static void print_ipsecstats __P((void));
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static const char *pfkey_msgtype_names __P((int));
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static void ipsec_hist __P((const u_quad_t *, size_t, const struct val2str *,
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size_t, const char *));
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/*
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* Dump IPSEC statistics structure.
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*/
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static void
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ipsec_hist(hist, histmax, name, namemax, title)
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const u_quad_t *hist;
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size_t histmax;
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const struct val2str *name;
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size_t namemax;
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const char *title;
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{
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int first;
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size_t proto;
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const struct val2str *p;
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first = 1;
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for (proto = 0; proto < histmax; proto++) {
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if (hist[proto] <= 0)
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continue;
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if (first) {
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printf("\t%s histogram:\n", title);
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first = 0;
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}
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for (p = name; p && p->str; p++) {
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if (p->val == proto)
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break;
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}
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if (p && p->str) {
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printf("\t\t%s: %llu\n", p->str, (unsigned long long)hist[proto]);
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} else {
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printf("\t\t#%ld: %llu\n", (long)proto,
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(unsigned long long)hist[proto]);
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}
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}
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}
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static void
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print_ipsecstats()
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{
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#define p(f, m) if (ipsecstat.f || sflag <= 1) \
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printf(m, (unsigned long long)ipsecstat.f, plural(ipsecstat.f))
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#define pes(f, m) if (ipsecstat.f || sflag <= 1) \
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printf(m, (unsigned long long)ipsecstat.f, plurales(ipsecstat.f))
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#define hist(f, n, t) \
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ipsec_hist((f), sizeof(f)/sizeof(f[0]), (n), sizeof(n)/sizeof(n[0]), (t));
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p(in_success, "\t%llu inbound packet%s processed successfully\n");
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p(in_polvio, "\t%llu inbound packet%s violated process security "
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"policy\n");
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p(in_nosa, "\t%llu inbound packet%s with no SA available\n");
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p(in_inval, "\t%llu invalid inbound packet%s\n");
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p(in_nomem, "\t%llu inbound packet%s failed due to insufficient memory\n");
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p(in_badspi, "\t%llu inbound packet%s failed getting SPI\n");
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p(in_ahreplay, "\t%llu inbound packet%s failed on AH replay check\n");
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p(in_espreplay, "\t%llu inbound packet%s failed on ESP replay check\n");
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p(in_ahauthsucc, "\t%llu inbound packet%s considered authentic\n");
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p(in_ahauthfail, "\t%llu inbound packet%s failed on authentication\n");
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hist(ipsecstat.in_ahhist, ipsec_ahnames, "AH input");
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hist(ipsecstat.in_esphist, ipsec_espnames, "ESP input");
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hist(ipsecstat.in_comphist, ipsec_compnames, "IPComp input");
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p(out_success, "\t%llu outbound packet%s processed successfully\n");
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p(out_polvio, "\t%llu outbound packet%s violated process security "
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"policy\n");
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p(out_nosa, "\t%llu outbound packet%s with no SA available\n");
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p(out_inval, "\t%llu invalid outbound packet%s\n");
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p(out_nomem, "\t%llu outbound packet%s failed due to insufficient memory\n");
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p(out_noroute, "\t%llu outbound packet%s with no route\n");
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hist(ipsecstat.out_ahhist, ipsec_ahnames, "AH output");
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hist(ipsecstat.out_esphist, ipsec_espnames, "ESP output");
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hist(ipsecstat.out_comphist, ipsec_compnames, "IPComp output");
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p(spdcachelookup, "\t%llu SPD cache lookup%s\n");
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pes(spdcachemiss, "\t%llu SPD cache miss%s\n");
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#undef p
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#undef pes
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#undef hist
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}
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void
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ipsec_stats(off, name)
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u_long off;
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char *name;
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{
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if (off == 0)
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return;
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printf ("%s:\n", name);
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kread(off, (char *)&ipsecstat, sizeof (ipsecstat));
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print_ipsecstats();
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}
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static const char *
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pfkey_msgtype_names(x)
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int x;
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{
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const int max =
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sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]);
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static char buf[20];
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if (x < max && pfkey_msgtypenames[x])
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return pfkey_msgtypenames[x];
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snprintf(buf, sizeof(buf), "#%d", x);
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return buf;
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}
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void
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pfkey_stats(off, name)
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u_long off;
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char *name;
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{
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struct pfkeystat pfkeystat;
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int first, type;
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if (off == 0)
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return;
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printf ("%s:\n", name);
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kread(off, (char *)&pfkeystat, sizeof(pfkeystat));
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#define p(f, m) if (pfkeystat.f || sflag <= 1) \
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printf(m, (unsigned long long)pfkeystat.f, plural(pfkeystat.f))
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/* userland -> kernel */
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p(out_total, "\t%llu request%s sent from userland\n");
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p(out_bytes, "\t%llu byte%s sent from userland\n");
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for (first = 1, type = 0;
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type < sizeof(pfkeystat.out_msgtype)/sizeof(pfkeystat.out_msgtype[0]);
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type++) {
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if (pfkeystat.out_msgtype[type] <= 0)
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continue;
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if (first) {
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printf("\thistogram by message type:\n");
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first = 0;
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}
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printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
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(unsigned long long)pfkeystat.out_msgtype[type]);
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}
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p(out_invlen, "\t%llu message%s with invalid length field\n");
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p(out_invver, "\t%llu message%s with invalid version field\n");
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p(out_invmsgtype, "\t%llu message%s with invalid message type field\n");
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p(out_tooshort, "\t%llu message%s too short\n");
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p(out_nomem, "\t%llu message%s with memory allocation failure\n");
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p(out_dupext, "\t%llu message%s with duplicate extension\n");
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p(out_invexttype, "\t%llu message%s with invalid extension type\n");
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p(out_invsatype, "\t%llu message%s with invalid sa type\n");
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p(out_invaddr, "\t%llu message%s with invalid address extension\n");
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/* kernel -> userland */
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p(in_total, "\t%llu request%s sent to userland\n");
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p(in_bytes, "\t%llu byte%s sent to userland\n");
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for (first = 1, type = 0;
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type < sizeof(pfkeystat.in_msgtype)/sizeof(pfkeystat.in_msgtype[0]);
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type++) {
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if (pfkeystat.in_msgtype[type] <= 0)
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continue;
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if (first) {
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printf("\thistogram by message type:\n");
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first = 0;
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}
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printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
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(unsigned long long)pfkeystat.in_msgtype[type]);
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}
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p(in_msgtarget[KEY_SENDUP_ONE],
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"\t%llu message%s toward single socket\n");
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p(in_msgtarget[KEY_SENDUP_ALL],
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"\t%llu message%s toward all sockets\n");
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p(in_msgtarget[KEY_SENDUP_REGISTERED],
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"\t%llu message%s toward registered sockets\n");
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p(in_nomem, "\t%llu message%s with memory allocation failure\n");
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#undef p
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}
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#endif /*IPSEC*/
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