/* $NetBSD: ipsec.c,v 1.15 2009/04/12 16:08:37 lukem Exp $ */ /* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * 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. */ /* * Copyright (c) 1983, 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * 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 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 BY THE REGENTS 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 REGENTS 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. */ #include #ifndef lint #if 0 static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94"; #else #ifdef __NetBSD__ __RCSID("$NetBSD: ipsec.c,v 1.15 2009/04/12 16:08:37 lukem Exp $"); #endif #endif #endif /* not lint */ #include #include #include #include #include #ifdef IPSEC #include #include #endif #include #include #include #include #include #include "netstat.h" #ifdef IPSEC struct val2str { int val; const char *str; }; static struct val2str ipsec_ahnames[] = { { SADB_AALG_NONE, "none", }, { SADB_AALG_MD5HMAC, "hmac-md5", }, { SADB_AALG_SHA1HMAC, "hmac-sha1", }, { SADB_X_AALG_MD5, "md5", }, { SADB_X_AALG_SHA, "sha", }, { SADB_X_AALG_NULL, "null", }, { SADB_X_AALG_SHA2_256, "hmac-sha2-256", }, { SADB_X_AALG_SHA2_384, "hmac-sha2-384", }, { SADB_X_AALG_SHA2_512, "hmac-sha2-512", }, { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", }, { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", }, { -1, NULL }, }; static struct val2str ipsec_espnames[] = { { SADB_EALG_NONE, "none", }, { SADB_EALG_DESCBC, "des-cbc", }, { SADB_EALG_3DESCBC, "3des-cbc", }, { SADB_EALG_NULL, "null", }, { SADB_X_EALG_CAST128CBC, "cast128-cbc", }, { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", }, { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", }, { SADB_X_EALG_AESCTR, "aes-ctr", }, { -1, NULL }, }; static struct val2str ipsec_compnames[] = { { SADB_X_CALG_NONE, "none", }, { SADB_X_CALG_OUI, "oui", }, { SADB_X_CALG_DEFLATE, "deflate", }, { SADB_X_CALG_LZS, "lzs", }, { -1, NULL }, }; static const char *pfkey_msgtypenames[] = { "reserved", "getspi", "update", "add", "delete", "get", "acquire", "register", "expire", "flush", "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd", "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush", "x_spdsetidx", "x_spdexpire", "x_spddelete2" }; static uint64_t ipsecstat[IPSEC_NSTATS]; static void print_ipsecstats(void); static const char *pfkey_msgtype_names(int); static void ipsec_hist(const u_quad_t *, int, const struct val2str *, size_t, const char *); /* * Dump IPSEC statistics structure. */ static void ipsec_hist(const uint64_t *hist, int histmax, const struct val2str *name, size_t namemax, const char *title) { int first; int proto; const struct val2str *p; first = 1; for (proto = 0; proto < histmax; proto++) { if (hist[proto] <= 0) continue; if (first) { printf("\t%s histogram:\n", title); first = 0; } for (p = name; p && p->str; p++) { if (p->val == proto) break; } if (p && p->str) { printf("\t\t%s: %llu\n", p->str, (unsigned long long)hist[proto]); } else { printf("\t\t#%ld: %llu\n", (long)proto, (unsigned long long)hist[proto]); } } } static void print_ipsecstats(void) { #define p(f, m) if (ipsecstat[f] || sflag <= 1) \ printf(m, (unsigned long long)ipsecstat[f], plural(ipsecstat[f])) #define pes(f, m) if (ipsecstat[f] || sflag <= 1) \ printf(m, (unsigned long long)ipsecstat[f], plurales(ipsecstat[f])) #define hist(f, c, n, t) \ ipsec_hist(&(f), (c), (n), sizeof(n)/sizeof(n[0]), (t)); p(IPSEC_STAT_IN_SUCCESS, "\t%llu inbound packet%s processed successfully\n"); p(IPSEC_STAT_IN_POLVIO, "\t%llu inbound packet%s violated process security " "policy\n"); p(IPSEC_STAT_IN_NOSA, "\t%llu inbound packet%s with no SA available\n"); p(IPSEC_STAT_IN_INVAL, "\t%llu invalid inbound packet%s\n"); p(IPSEC_STAT_IN_NOMEM, "\t%llu inbound packet%s failed due to insufficient memory\n"); p(IPSEC_STAT_IN_BADSPI, "\t%llu inbound packet%s failed getting SPI\n"); p(IPSEC_STAT_IN_AHREPLAY, "\t%llu inbound packet%s failed on AH replay check\n"); p(IPSEC_STAT_IN_ESPREPLAY, "\t%llu inbound packet%s failed on ESP replay check\n"); p(IPSEC_STAT_IN_AHAUTHSUCC, "\t%llu inbound packet%s considered authentic\n"); p(IPSEC_STAT_IN_AHAUTHFAIL, "\t%llu inbound packet%s failed on authentication\n"); hist(ipsecstat[IPSEC_STAT_IN_AHHIST], 256, ipsec_ahnames, "AH input"); hist(ipsecstat[IPSEC_STAT_IN_ESPHIST], 256, ipsec_espnames, "ESP input"); hist(ipsecstat[IPSEC_STAT_IN_COMPHIST], 256, ipsec_compnames, "IPComp input"); p(IPSEC_STAT_OUT_SUCCESS, "\t%llu outbound packet%s processed successfully\n"); p(IPSEC_STAT_OUT_POLVIO, "\t%llu outbound packet%s violated process security " "policy\n"); p(IPSEC_STAT_OUT_NOSA, "\t%llu outbound packet%s with no SA available\n"); p(IPSEC_STAT_OUT_INVAL, "\t%llu invalid outbound packet%s\n"); p(IPSEC_STAT_OUT_NOMEM, "\t%llu outbound packet%s failed due to insufficient memory\n"); p(IPSEC_STAT_OUT_NOROUTE, "\t%llu outbound packet%s with no route\n"); hist(ipsecstat[IPSEC_STAT_OUT_AHHIST], 256, ipsec_ahnames, "AH output"); hist(ipsecstat[IPSEC_STAT_OUT_ESPHIST], 256, ipsec_espnames, "ESP output"); hist(ipsecstat[IPSEC_STAT_OUT_COMPHIST], 256, ipsec_compnames, "IPComp output"); p(IPSEC_STAT_SPDCACHELOOKUP, "\t%llu SPD cache lookup%s\n"); pes(IPSEC_STAT_SPDCACHEMISS, "\t%llu SPD cache miss%s\n"); #undef p #undef pes #undef hist } void ipsec_stats(u_long off, const char *name) { if (use_sysctl) { size_t size = sizeof(ipsecstat); if (sysctlbyname("net.inet.ipsec.stats", ipsecstat, &size, NULL, 0) == -1) return; } else { warnx("%s stats not available via KVM.", name); return; } printf ("%s:\n", name); print_ipsecstats(); } static const char * pfkey_msgtype_names(int x) { const int max = sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]); static char buf[20]; if (x < max && pfkey_msgtypenames[x]) return pfkey_msgtypenames[x]; snprintf(buf, sizeof(buf), "#%d", x); return buf; } void pfkey_stats(u_long off, const char *name) { uint64_t pfkeystat[PFKEY_NSTATS]; int first, type; if (use_sysctl) { size_t size = sizeof(pfkeystat); if (sysctlbyname("net.key.stats", pfkeystat, &size, NULL, 0) == -1) return; } else { warnx("%s stats not available via KVM.", name); return; } printf ("%s:\n", name); #define p(f, m) if (pfkeystat[f] || sflag <= 1) \ printf(m, (unsigned long long)pfkeystat[f], plural(pfkeystat[f])) /* userland -> kernel */ p(PFKEY_STAT_OUT_TOTAL, "\t%llu request%s sent from userland\n"); p(PFKEY_STAT_OUT_BYTES, "\t%llu byte%s sent from userland\n"); for (first = 1, type = 0; type < 256; type++) { if (pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type] == 0) continue; if (first) { printf("\thistogram by message type:\n"); first = 0; } printf("\t\t%s: %llu\n", pfkey_msgtype_names(type), (unsigned long long)pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type]); } p(PFKEY_STAT_OUT_INVLEN, "\t%llu message%s with invalid length field\n"); p(PFKEY_STAT_OUT_INVVER, "\t%llu message%s with invalid version field\n"); p(PFKEY_STAT_OUT_INVMSGTYPE, "\t%llu message%s with invalid message type field\n"); p(PFKEY_STAT_OUT_TOOSHORT, "\t%llu message%s too short\n"); p(PFKEY_STAT_OUT_NOMEM, "\t%llu message%s with memory allocation failure\n"); p(PFKEY_STAT_OUT_DUPEXT, "\t%llu message%s with duplicate extension\n"); p(PFKEY_STAT_OUT_INVEXTTYPE, "\t%llu message%s with invalid extension type\n"); p(PFKEY_STAT_OUT_INVSATYPE, "\t%llu message%s with invalid sa type\n"); p(PFKEY_STAT_OUT_INVADDR, "\t%llu message%s with invalid address extension\n"); /* kernel -> userland */ p(PFKEY_STAT_IN_TOTAL, "\t%llu request%s sent to userland\n"); p(PFKEY_STAT_IN_BYTES, "\t%llu byte%s sent to userland\n"); for (first = 1, type = 0; type < 256; type++) { if (pfkeystat[PFKEY_STAT_IN_MSGTYPE + type] == 0) continue; if (first) { printf("\thistogram by message type:\n"); first = 0; } printf("\t\t%s: %llu\n", pfkey_msgtype_names(type), (unsigned long long)pfkeystat[PFKEY_STAT_IN_MSGTYPE + type]); } p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ONE, "\t%llu message%s toward single socket\n"); p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ALL, "\t%llu message%s toward all sockets\n"); p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_REGISTERED, "\t%llu message%s toward registered sockets\n"); p(PFKEY_STAT_IN_NOMEM, "\t%llu message%s with memory allocation failure\n"); #undef p } #endif /*IPSEC*/