304 lines
11 KiB
C
304 lines
11 KiB
C
/* $NetBSD: fast_ipsec.c,v 1.3 2004/05/09 03:20:44 petrov Exp $ */
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/* $FreeBSD: src/tools/tools/crypto/ipsecstats.c,v 1.1.4.1 2003/06/03 00:13:13 sam Exp $ */
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/*-
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* Copyright (c) 2003, 2004 Jonathan Stone
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* Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD: src/tools/tools/crypto/ipsecstats.c,v 1.1.4.1 2003/06/03 00:13:13 sam Exp $
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#ifdef __NetBSD__
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__RCSID("$NetBSD: fast_ipsec.c,v 1.3 2004/05/09 03:20:44 petrov Exp $");
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#endif
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#endif /* not lint*/
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/* Kernel headers required, but not included, by netstat.h */
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#include <sys/types.h>
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#include <sys/socket.h>
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/* Kernel headers for sysctl(3). */
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#include <sys/param.h>
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#include <sys/sysctl.h>
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/* Kernel headers for FAST_IPSEC statistics */
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#include <net/pfkeyv2.h>
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#include <netipsec/esp_var.h>
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#include <netipsec/ah_var.h>
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#include <netipsec/ipip_var.h>
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#include <netipsec/ipcomp_var.h>
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#include <netipsec/ipsec_var.h>
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#include <netipsec/keydb.h>
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#include <machine/int_fmtio.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include "netstat.h"
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/*
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* Dispatch between fetching and printing (KAME) IPsec statistics,
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* and FAST_IPSEC statistics, so the rest of netstat need not know
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* about the vagaries of the two implementations.
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*/
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void
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ipsec_switch(u_long off, char * name)
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{
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int status;
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size_t slen;
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slen = 0;
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status = sysctlbyname("net.inet.ipsec.stats", NULL, &slen, NULL, 0);
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if (status == 0)
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return fast_ipsec_stats(off, name);
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return ipsec_stats(off, name);
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}
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/*
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* Table-driven mapping from SADB algorithm codes to string names.
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*/
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struct alg {
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int a;
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const char *name;
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};
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static const struct alg aalgs[] = {
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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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};
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static const struct alg espalgs[] = {
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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, "aes-cbc", },
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};
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static const struct alg ipcompalgs[] = {
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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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};
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#define N(a) (sizeof(a)/sizeof(a[0]))
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static const char*
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algname(int a, const struct alg algs[], int nalgs)
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{
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static char buf[80];
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int i;
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for (i = 0; i < nalgs; i++)
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if (algs[i].a == a)
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return algs[i].name;
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snprintf(buf, sizeof(buf), "alg#%u", a);
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return buf;
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}
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/*
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* Print the fast_ipsec statistics.
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* Since NetBSD's netstat(1) seems not to find us for "netstat -s",
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* but does(?) find KAME, be prepared to be called explicitly from
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* netstat's main program for "netstat -s"; but silently do nothing
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* if that happens when we are running on KAME IPsec.
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*/
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void
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fast_ipsec_stats(u_long off, char *name)
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{
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struct newipsecstat ipsecstats;
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struct ahstat ahstats;
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struct espstat espstats;
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struct ipcompstat ipcs;
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struct ipipstat ipips;
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int status;
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size_t slen;
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int i;
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memset(&ipsecstats, 0, sizeof(ipsecstats));
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memset(&ahstats, 0, sizeof(ahstats));
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memset(&espstats, 0, sizeof(espstats));
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memset(&ipcs, 0, sizeof(ipcs));
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memset(&ipips, 0, sizeof(ipips));
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/* silence check */
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status = sysctlbyname("net.inet.ipsec.stats", NULL, &slen, NULL, 0);
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if (status != 0)
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return;
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slen = sizeof(ipsecstats);
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status = sysctlbyname("net.inet.ipsec.stats", &ipsecstats, &slen,
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NULL, 0);
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if (status < 0)
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err(1, "net.inet.ipsec.stats");
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slen = sizeof (ahstats);
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if (sysctlbyname("net.inet.ah.stats", &ahstats, &slen, NULL, 0) < 0)
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err(1, "net.inet.ah.stats");
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slen = sizeof (espstats);
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if (sysctlbyname("net.inet.esp.stats", &espstats, &slen, NULL, 0) < 0)
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err(1, "net.inet.esp.stats");
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if (sysctlbyname("net.inet.ipcomp.stats", &ipcs, &slen, NULL, 0) < 0)
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err(1, "net.inet.ipcomp.stats");
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if (sysctlbyname("net.inet.ipip.stats", &ipips, &slen, NULL, 0) < 0)
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err(1, "net.inet.ipip.stats");
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printf("(Fast) IPsec:\n");
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#define STAT(x,fmt) if ((x) || sflag <= 1) printf("\t%"PRIu64" " fmt "\n", x)
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if (ipsecstats.ips_in_polvio+ipsecstats.ips_out_polvio)
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printf("\t%"PRIu64" policy violations: %"PRIu64" input %"PRIu64" output\n",
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ipsecstats.ips_in_polvio + ipsecstats.ips_out_polvio,
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ipsecstats.ips_in_polvio, ipsecstats.ips_out_polvio);
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STAT(ipsecstats.ips_out_nosa, "no SA found (output)");
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STAT(ipsecstats.ips_out_nomem, "no memory available (output)");
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STAT(ipsecstats.ips_out_noroute, "no route available (output)");
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STAT(ipsecstats.ips_out_inval, "generic errors (output)");
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STAT(ipsecstats.ips_out_bundlesa, "bundled SA processed (output)");
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STAT(ipsecstats.ips_spdcache_lookup, "SPD cache lookups");
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STAT(ipsecstats.ips_spdcache_lookup, "SPD cache misses");
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#undef STAT
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printf("\n");
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printf("IPsec ah:\n");
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#define AHSTAT(x,fmt) if ((x) || sflag <= 1) printf("\t%"PRIu64" ah " fmt "\n", x)
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AHSTAT(ahstats.ahs_input, "input packets processed");
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AHSTAT(ahstats.ahs_output, "output packets processed");
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AHSTAT(ahstats.ahs_hdrops, "headers too short");
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AHSTAT(ahstats.ahs_nopf, "headers for unsupported address family");
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AHSTAT(ahstats.ahs_notdb, "packets with no SA");
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AHSTAT(ahstats.ahs_badkcr, "packets dropped by crypto returning NULL mbuf");
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AHSTAT(ahstats.ahs_badauth, "packets with bad authentication");
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AHSTAT(ahstats.ahs_noxform, "packets with no xform");
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AHSTAT(ahstats.ahs_qfull, "packets dropped due to queue full");
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AHSTAT(ahstats.ahs_wrap, "packets dropped for replay counter wrap");
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AHSTAT(ahstats.ahs_replay, "packets dropped for possible replay");
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AHSTAT(ahstats.ahs_badauthl,"packets dropped for bad authenticator length");
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AHSTAT(ahstats.ahs_invalid, "packets with an invalid SA");
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AHSTAT(ahstats.ahs_toobig, "packets too big");
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AHSTAT(ahstats.ahs_pdrops, "packets blocked due to policy");
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AHSTAT(ahstats.ahs_crypto, "failed crypto requests");
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AHSTAT(ahstats.ahs_tunnel, "tunnel sanity check failures");
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printf("\tah histogram:\n");
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for (i = 0; i < AH_ALG_MAX; i++)
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if (ahstats.ahs_hist[i])
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printf("\t\tah packets with %s: %"PRIu64"\n"
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, algname(i, aalgs, N(aalgs))
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, ahstats.ahs_hist[i]
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);
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AHSTAT(ahstats.ahs_ibytes, "bytes received");
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AHSTAT(ahstats.ahs_obytes, "bytes transmitted");
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#undef AHSTAT
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printf("\n");
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printf("IPsec esp:\n");
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#define ESPSTAT(x,fmt) if ((x) || sflag <= 1) printf("\t%"PRIu64" esp " fmt "\n", x)
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ESPSTAT(espstats.esps_input, "input packets processed");
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ESPSTAT(espstats.esps_output, "output packets processed");
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ESPSTAT(espstats.esps_hdrops, "headers too short");
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ESPSTAT(espstats.esps_nopf, "headers for unsupported address family");
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ESPSTAT(espstats.esps_notdb, "packets with no SA");
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ESPSTAT(espstats.esps_badkcr, "packets dropped by crypto returning NULL mbuf");
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ESPSTAT(espstats.esps_qfull, "packets dropped due to queue full");
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ESPSTAT(espstats.esps_noxform, "packets with no xform");
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ESPSTAT(espstats.esps_badilen, "packets with bad ilen");
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ESPSTAT(espstats.esps_badenc, "packets with bad encryption");
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ESPSTAT(espstats.esps_badauth, "packets with bad authentication");
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ESPSTAT(espstats.esps_wrap, "packets dropped for replay counter wrap");
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ESPSTAT(espstats.esps_replay, "packets dropped for possible replay");
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ESPSTAT(espstats.esps_invalid, "packets with an invalid SA");
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ESPSTAT(espstats.esps_toobig, "packets too big");
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ESPSTAT(espstats.esps_pdrops, "packets blocked due to policy");
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ESPSTAT(espstats.esps_crypto, "failed crypto requests");
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ESPSTAT(espstats.esps_tunnel, "tunnel sanity check failures");
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printf("\tesp histogram:\n");
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for (i = 0; i < ESP_ALG_MAX; i++)
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if (espstats.esps_hist[i])
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printf("\t\tesp packets with %s: %"PRIu64"\n"
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, algname(i, espalgs, N(espalgs))
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, espstats.esps_hist[i]
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);
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ESPSTAT(espstats.esps_ibytes, "bytes received");
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ESPSTAT(espstats.esps_obytes, "bytes transmitted");
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#undef ESPSTAT
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printf("IPsec ipip:\n");
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#define IPIPSTAT(x,fmt) \
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if ((x) || sflag <= 1) printf("\t%"PRIu64" ipip " fmt "\n", x)
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IPIPSTAT(ipips.ipips_ipackets, "total input packets");
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IPIPSTAT(ipips.ipips_opackets, "total output packets");
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IPIPSTAT(ipips.ipips_hdrops, "packets too short for header length");
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IPIPSTAT(ipips.ipips_qfull, "packets dropped due to queue full");
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IPIPSTAT(ipips.ipips_pdrops, "packets blocked due to policy");
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IPIPSTAT(ipips.ipips_spoof, "IP spoofing attempts");
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IPIPSTAT(ipips.ipips_family, "protocol family mismatched");
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IPIPSTAT(ipips.ipips_unspec, "missing tunnel-endpoint address");
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IPIPSTAT(ipips.ipips_ibytes, "input bytes received");
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IPIPSTAT(ipips.ipips_obytes, "output bytes procesesed");
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#undef IPIPSTAT
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printf("IPsec ipcomp:\n");
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#define IPCOMP(x,fmt) \
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if ((x) || sflag <= 1) printf("\t%"PRIu64" ipcomp " fmt "\n", x)
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IPCOMP(ipcs.ipcomps_hdrops, "packets too short for header length");
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IPCOMP(ipcs.ipcomps_nopf, "protocol family not supported");
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IPCOMP(ipcs.ipcomps_notdb, "not db");
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IPCOMP(ipcs.ipcomps_badkcr, "packets dropped by crypto returning NULL mbuf");
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IPCOMP(ipcs.ipcomps_qfull, "queue full");
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IPCOMP(ipcs.ipcomps_noxform, "no support for transform");
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IPCOMP(ipcs.ipcomps_wrap, "packets dropped for replay counter wrap");
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IPCOMP(ipcs.ipcomps_input, "input IPcomp packets");
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IPCOMP(ipcs.ipcomps_output, "output IPcomp packets");
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IPCOMP(ipcs.ipcomps_invalid, "specified an invalid TDB");
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IPCOMP(ipcs.ipcomps_toobig, "packets decompressed as too big");
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IPCOMP(ipcs.ipcomps_pdrops, "packets blocked due to policy");
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IPCOMP(ipcs.ipcomps_crypto, "failed crypto requests");
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printf("\tIPcomp histogram:\n");
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for (i = 0; i < IPCOMP_ALG_MAX; i++)
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if (ipcs.ipcomps_hist[i])
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printf("\t\tIPcomp packets with %s: %"PRIu64"\n"
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, algname(i, ipcompalgs, N(ipcompalgs))
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, ipcs.ipcomps_hist[i]
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);
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IPCOMP(ipcs.ipcomps_ibytes, "input bytes");
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IPCOMP(ipcs.ipcomps_obytes, "output bytes");
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#undef IPCOMP
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}
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