/* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2005 NTT Multimedia Communications Laboratories, Inc. * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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) 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 #include #include #include #include #ifdef IPSEC #include #include #include #include #endif #include #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_SHA1HMAC, "hmac-sha1", }, { 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_AES_XCBC_MAC, "aes-xcbc-mac", }, { SADB_X_AALG_TCP_MD5, "tcp-md5", }, { SADB_X_AALG_AES128GMAC, "aes-gmac-128", }, { SADB_X_AALG_AES192GMAC, "aes-gmac-192", }, { SADB_X_AALG_AES256GMAC, "aes-gmac-256", }, { -1, NULL }, }; static struct val2str ipsec_espnames[] = { { SADB_EALG_NONE, "none", }, { SADB_EALG_NULL, "null", }, { SADB_X_EALG_AESCBC, "aes-cbc", }, { SADB_X_EALG_AESCTR, "aes-ctr", }, { SADB_X_EALG_AESGCM16, "aes-gcm-16", }, { SADB_X_EALG_AESGMAC, "aes-gmac", }, { -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 void print_ipsecstats(const char *tag, const struct ipsecstat *ipsecstat) { xo_open_container(tag); #define p(f, m) if (ipsecstat->f || sflag <= 1) \ xo_emit(m, (uintmax_t)ipsecstat->f, plural(ipsecstat->f)) #define p2(f, m) if (ipsecstat->f || sflag <= 1) \ xo_emit(m, (uintmax_t)ipsecstat->f, plurales(ipsecstat->f)) p(ips_in_polvio, "\t{:dropped-policy-violation/%ju} " "{N:/inbound packet%s violated process security policy}\n"); p(ips_in_nomem, "\t{:dropped-no-memory/%ju} " "{N:/inbound packet%s failed due to insufficient memory}\n"); p(ips_in_inval, "\t{:dropped-invalid/%ju} " "{N:/invalid inbound packet%s}\n"); p(ips_out_polvio, "\t{:discarded-policy-violation/%ju} " "{N:/outbound packet%s violated process security policy}\n"); p(ips_out_nosa, "\t{:discarded-no-sa/%ju} " "{N:/outbound packet%s with no SA available}\n"); p(ips_out_nomem, "\t{:discarded-no-memory/%ju} " "{N:/outbound packet%s failed due to insufficient memory}\n"); p(ips_out_noroute, "\t{:discarded-no-route/%ju} " "{N:/outbound packet%s with no route available}\n"); p(ips_out_inval, "\t{:discarded-invalid/%ju} " "{N:/invalid outbound packet%s}\n"); p(ips_out_bundlesa, "\t{:send-bundled-sa/%ju} " "{N:/outbound packet%s with bundled SAs}\n"); p(ips_spdcache_hits, "\t{:spdcache-hits/%ju} " "{N:/spd cache hit%s}\n"); p2(ips_spdcache_misses, "\t{:spdcache-misses/%ju} " "{N:/spd cache miss%s}\n"); p(ips_clcopied, "\t{:clusters-copied-during-clone/%ju} " "{N:/cluster%s copied during clone}\n"); p(ips_mbinserted, "\t{:mbufs-inserted/%ju} " "{N:/mbuf%s inserted during makespace}\n"); #undef p2 #undef p xo_close_container(tag); } void ipsec_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct ipsecstat ipsecstat; const char *tag; if (strcmp(name, "ipsec6") == 0) { if (fetch_stats("net.inet6.ipsec6.ipsecstats", off,&ipsecstat, sizeof(ipsecstat), kread_counters) != 0) return; tag = "ipsec6-statistics"; } else { if (fetch_stats("net.inet.ipsec.ipsecstats", off, &ipsecstat, sizeof(ipsecstat), kread_counters) != 0) return; tag = "ipsec-statistics"; } xo_emit("{T:/%s}:\n", name); print_ipsecstats(tag, &ipsecstat); } static void print_ahstats(const struct ahstat *ahstat); static void print_espstats(const struct espstat *espstat); static void print_ipcompstats(const struct ipcompstat *ipcompstat); /* * Dump IPSEC statistics structure. */ static void ipsec_hist_new(const uint64_t *hist, size_t histmax, const struct val2str *name, const char *title, const char *cname) { int first; size_t proto; const struct val2str *p; first = 1; for (proto = 0; proto < histmax; proto++) { if (hist[proto] <= 0) continue; if (first) { xo_open_list(cname); xo_emit("\t{T:/%s histogram}:\n", title); first = 0; } xo_open_instance(cname); for (p = name; p && p->str; p++) { if (p->val == (int)proto) break; } if (p && p->str) { xo_emit("\t\t{k:name}: {:count/%ju}\n", p->str, (uintmax_t)hist[proto]); } else { xo_emit("\t\t#{k:name/%lu}: {:count/%ju}\n", (unsigned long)proto, (uintmax_t)hist[proto]); } xo_close_instance(cname); } if (!first) xo_close_list(cname); } static void print_ahstats(const struct ahstat *ahstat) { xo_open_container("ah-statictics"); #define p(f, n, m) if (ahstat->f || sflag <= 1) \ xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \ (uintmax_t)ahstat->f, plural(ahstat->f)) #define hist(f, n, t, c) \ ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c)) p(ahs_hdrops, "dropped-short-header", "packet%s shorter than header shows"); p(ahs_nopf, "dropped-bad-protocol", "packet%s dropped; protocol family not supported"); p(ahs_notdb, "dropped-no-tdb", "packet%s dropped; no TDB"); p(ahs_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR"); p(ahs_qfull, "dropped-queue-full", "packet%s dropped; queue full"); p(ahs_noxform, "dropped-no-transform", "packet%s dropped; no transform"); p(ahs_wrap, "replay-counter-wraps", "replay counter wrap%s"); p(ahs_badauth, "dropped-bad-auth", "packet%s dropped; bad authentication detected"); p(ahs_badauthl, "dropped-bad-auth-level", "packet%s dropped; bad authentication length"); p(ahs_replay, "possile-replay-detected", "possible replay packet%s detected"); p(ahs_input, "received-packets", "packet%s in"); p(ahs_output, "send-packets", "packet%s out"); p(ahs_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB"); p(ahs_ibytes, "received-bytes", "byte%s in"); p(ahs_obytes, "send-bytes", "byte%s out"); p(ahs_toobig, "dropped-too-large", "packet%s dropped; larger than IP_MAXPACKET"); p(ahs_pdrops, "dropped-policy-violation", "packet%s blocked due to policy"); p(ahs_crypto, "crypto-failures", "crypto processing failure%s"); p(ahs_tunnel, "tunnel-failures", "tunnel sanity check failure%s"); hist(ahstat->ahs_hist, ipsec_ahnames, "AH output", "ah-output-histogram"); #undef p #undef hist xo_close_container("ah-statictics"); } void ah_stats(u_long off, const char *name, int family __unused, int proto __unused) { struct ahstat ahstat; if (fetch_stats("net.inet.ah.stats", off, &ahstat, sizeof(ahstat), kread_counters) != 0) return; xo_emit("{T:/%s}:\n", name); print_ahstats(&ahstat); } static void print_espstats(const struct espstat *espstat) { xo_open_container("esp-statictics"); #define p(f, n, m) if (espstat->f || sflag <= 1) \ xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \ (uintmax_t)espstat->f, plural(espstat->f)) #define hist(f, n, t, c) \ ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c)); p(esps_hdrops, "dropped-short-header", "packet%s shorter than header shows"); p(esps_nopf, "dropped-bad-protocol", "packet%s dropped; protocol family not supported"); p(esps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB"); p(esps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR"); p(esps_qfull, "dropped-queue-full", "packet%s dropped; queue full"); p(esps_noxform, "dropped-no-transform", "packet%s dropped; no transform"); p(esps_badilen, "dropped-bad-length", "packet%s dropped; bad ilen"); p(esps_wrap, "replay-counter-wraps", "replay counter wrap%s"); p(esps_badenc, "dropped-bad-crypto", "packet%s dropped; bad encryption detected"); p(esps_badauth, "dropped-bad-auth", "packet%s dropped; bad authentication detected"); p(esps_replay, "possible-replay-detected", "possible replay packet%s detected"); p(esps_input, "received-packets", "packet%s in"); p(esps_output, "sent-packets", "packet%s out"); p(esps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB"); p(esps_ibytes, "receive-bytes", "byte%s in"); p(esps_obytes, "sent-bytes", "byte%s out"); p(esps_toobig, "dropped-too-large", "packet%s dropped; larger than IP_MAXPACKET"); p(esps_pdrops, "dropped-policy-violation", "packet%s blocked due to policy"); p(esps_crypto, "crypto-failures", "crypto processing failure%s"); p(esps_tunnel, "tunnel-failures", "tunnel sanity check failure%s"); hist(espstat->esps_hist, ipsec_espnames, "ESP output", "esp-output-histogram"); #undef p #undef hist xo_close_container("esp-statictics"); } void esp_stats(u_long off, const char *name, int family __unused, int proto __unused) { struct espstat espstat; if (fetch_stats("net.inet.esp.stats", off, &espstat, sizeof(espstat), kread_counters) != 0) return; xo_emit("{T:/%s}:\n", name); print_espstats(&espstat); } static void print_ipcompstats(const struct ipcompstat *ipcompstat) { xo_open_container("ipcomp-statictics"); #define p(f, n, m) if (ipcompstat->f || sflag <= 1) \ xo_emit("\t{:" n "/%ju} {N:/" m "}\n", \ (uintmax_t)ipcompstat->f, plural(ipcompstat->f)) #define hist(f, n, t, c) \ ipsec_hist_new((f), sizeof(f)/sizeof(f[0]), (n), (t), (c)); p(ipcomps_hdrops, "dropped-short-header", "packet%s shorter than header shows"); p(ipcomps_nopf, "dropped-bad-protocol", "packet%s dropped; protocol family not supported"); p(ipcomps_notdb, "dropped-no-tdb", "packet%s dropped; no TDB"); p(ipcomps_badkcr, "dropped-bad-kcr", "packet%s dropped; bad KCR"); p(ipcomps_qfull, "dropped-queue-full", "packet%s dropped; queue full"); p(ipcomps_noxform, "dropped-no-transform", "packet%s dropped; no transform"); p(ipcomps_wrap, "replay-counter-wraps", "replay counter wrap%s"); p(ipcomps_input, "receive-packets", "packet%s in"); p(ipcomps_output, "sent-packets", "packet%s out"); p(ipcomps_invalid, "dropped-bad-tdb", "packet%s dropped; invalid TDB"); p(ipcomps_ibytes, "received-bytes", "byte%s in"); p(ipcomps_obytes, "sent-bytes", "byte%s out"); p(ipcomps_toobig, "dropped-too-large", "packet%s dropped; larger than IP_MAXPACKET"); p(ipcomps_pdrops, "dropped-policy-violation", "packet%s blocked due to policy"); p(ipcomps_crypto, "crypto-failure", "crypto processing failure%s"); hist(ipcompstat->ipcomps_hist, ipsec_compnames, "COMP output", "comp-output-histogram"); p(ipcomps_threshold, "sent-uncompressed-small-packets", "packet%s sent uncompressed; size < compr. algo. threshold"); p(ipcomps_uncompr, "sent-uncompressed-useless-packets", "packet%s sent uncompressed; compression was useless"); #undef p #undef hist xo_close_container("ipcomp-statictics"); } void ipcomp_stats(u_long off, const char *name, int family __unused, int proto __unused) { struct ipcompstat ipcompstat; if (fetch_stats("net.inet.ipcomp.stats", off, &ipcompstat, sizeof(ipcompstat), kread_counters) != 0) return; xo_emit("{T:/%s}:\n", name); print_ipcompstats(&ipcompstat); } #endif /*IPSEC*/