usr.bin/netstat/ipsec.c

   1 /*      $FreeBSD: src/usr.bin/netstat/ipsec.c,v 1.1.2.3 2001/08/10 09:07:09 ru Exp $    */
   2 /*      $NetBSD: inet.c,v 1.35.2.1 1999/04/29 14:57:08 perry Exp $      */
   3 /*      $KAME: ipsec.c,v 1.25 2001/03/12 09:04:39 itojun Exp $  */
   4
   5 /*
   6  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)inet.c   8.5 (Berkeley) 5/24/95
  34  * $FreeBSD: src/usr.bin/netstat/ipsec.c,v 1.1.2.3 2001/08/10 09:07:09 ru Exp $
  35  */
  36
  37 /*
  38  * Copyright (c) 1983, 1988, 1993
  39  *      The Regents of the University of California.  All rights reserved.
  40  *
  41  * Redistribution and use in source and binary forms, with or without
  42  * modification, are permitted provided that the following conditions
  43  * are met:
  44  * 1. Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  * 2. Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in the
  48  *    documentation and/or other materials provided with the distribution.
  49  * 3. Neither the name of the University nor the names of its contributors
  50  *    may be used to endorse or promote products derived from this software
  51  *    without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  63  * SUCH DAMAGE.
  64  */
  65
  66 #include <sys/param.h>
  67 #include <sys/queue.h>
  68 #include <sys/socket.h>
  69
  70 #include <netinet/in.h>
  71
  72 #ifdef IPSEC
  73 #include <netinet6/ipsec.h>
  74 #include <netkey/keysock.h>
  75 #endif
  76
  77 #include <stdio.h>
  78 #include <string.h>
  79 #include <unistd.h>
  80 #include "netstat.h"
  81
  82 /*
  83  * portability issues:
  84  * - bsdi[34] uses PLURAL(), not plural().
  85  * - freebsd2 can't print "unsigned long long" properly.
  86  */
  87 /*
  88  * XXX see PORTABILITY for the twist
  89  */
  90 #define LLU     "%llu"
  91 #define CAST    unsigned long long
  92
  93 #ifdef IPSEC
  94 struct val2str {
  95         int val;
  96         const char *str;
  97 };
  98
  99 static struct val2str ipsec_ahnames[] = {
 100         { SADB_AALG_NONE, "none", },
 101         { SADB_AALG_MD5HMAC, "hmac-md5", },
 102         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
 103         { SADB_X_AALG_MD5, "md5", },
 104         { SADB_X_AALG_SHA, "sha", },
 105         { SADB_X_AALG_NULL, "null", },
 106 #ifdef SADB_X_AALG_SHA2_256
 107         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
 108 #endif
 109 #ifdef SADB_X_AALG_SHA2_384
 110         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
 111 #endif
 112 #ifdef SADB_X_AALG_SHA2_512
 113         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
 114 #endif
 115         { -1, NULL },
 116 };
 117
 118 static struct val2str ipsec_espnames[] = {
 119         { SADB_EALG_NONE, "none", },
 120         { SADB_EALG_DESCBC, "des-cbc", },
 121         { SADB_EALG_3DESCBC, "3des-cbc", },
 122         { SADB_EALG_NULL, "null", },
 123 #ifdef SADB_X_EALG_RC5CBC
 124         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
 125 #endif
 126         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
 127         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
 128 #ifdef SADB_X_EALG_RIJNDAELCBC
 129         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
 130 #endif
 131         { -1, NULL },
 132 };
 133
 134 static struct val2str ipsec_compnames[] = {
 135         { SADB_X_CALG_NONE, "none", },
 136         { SADB_X_CALG_OUI, "oui", },
 137         { SADB_X_CALG_DEFLATE, "deflate", },
 138         { SADB_X_CALG_LZS, "lzs", },
 139         { -1, NULL },
 140 };
 141
 142 static const char *pfkey_msgtypenames[] = {
 143         "reserved", "getspi", "update", "add", "delete",
 144         "get", "acquire", "register", "expire", "flush",
 145         "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd",
 146         "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush",
 147         "x_spdsetidx", "x_spdexpire", "x_spddelete2"
 148 };
 149
 150 static struct ipsecstat ipsecstat;
 151
 152 static void print_ipsecstats (void);
 153 static const char *pfkey_msgtype_names (int);
 154 static void ipsec_hist (const u_quad_t *, size_t, const struct val2str *,
 155         const char *);
 156
 157 /*
 158  * Dump IPSEC statistics structure.
 159  */
 160 static void
 161 ipsec_hist(const u_quad_t *hist,
 162            size_t histmax,
 163            const struct val2str *name,
 164            const char *title)
 165 {
 166         int first;
 167         size_t proto;
 168         const struct val2str *p;
 169
 170         first = 1;
 171         for (proto = 0; proto < histmax; proto++) {
 172                 if (hist[proto] <= 0)
 173                         continue;
 174                 if (first) {
 175                         printf("\t%s histogram:\n", title);
 176                         first = 0;
 177                 }
 178                 for (p = name; p && p->str; p++) {
 179                         if (p->val == (int)proto)
 180                                 break;
 181                 }
 182                 if (p && p->str) {
 183                         printf("\t\t%s: " LLU "\n", p->str, (CAST)hist[proto]);
 184                 } else {
 185                         printf("\t\t#%ld: " LLU "\n", (long)proto,
 186                             (CAST)hist[proto]);
 187                 }
 188         }
 189 }
 190
 191 static void
 192 print_ipsecstats(void)
 193 {
 194 #define p(f, m) if (ipsecstat.f || sflag <= 1) \
 195     printf(m, (CAST)ipsecstat.f, plural(ipsecstat.f))
 196 #define hist(f, n, t) \
 197     ipsec_hist((f), sizeof(f)/sizeof(f[0]), (n), (t));
 198
 199         p(in_success, "\t" LLU " inbound packet%s processed successfully\n");
 200         p(in_polvio, "\t" LLU " inbound packet%s violated process security "
 201                 "policy\n");
 202         p(in_nosa, "\t" LLU " inbound packet%s with no SA available\n");
 203         p(in_inval, "\t" LLU " invalid inbound packet%s\n");
 204         p(in_nomem, "\t" LLU " inbound packet%s failed due to insufficient memory\n");
 205         p(in_badspi, "\t" LLU " inbound packet%s failed getting SPI\n");
 206         p(in_ahreplay, "\t" LLU " inbound packet%s failed on AH replay check\n");
 207         p(in_espreplay, "\t" LLU " inbound packet%s failed on ESP replay check\n");
 208         p(in_ahauthsucc, "\t" LLU " inbound packet%s considered authentic\n");
 209         p(in_ahauthfail, "\t" LLU " inbound packet%s failed on authentication\n");
 210         hist(ipsecstat.in_ahhist, ipsec_ahnames, "AH input");
 211         hist(ipsecstat.in_esphist, ipsec_espnames, "ESP input");
 212         hist(ipsecstat.in_comphist, ipsec_compnames, "IPComp input");
 213
 214         p(out_success, "\t" LLU " outbound packet%s processed successfully\n");
 215         p(out_polvio, "\t" LLU " outbound packet%s violated process security "
 216                 "policy\n");
 217         p(out_nosa, "\t" LLU " outbound packet%s with no SA available\n");
 218         p(out_inval, "\t" LLU " invalid outbound packet%s\n");
 219         p(out_nomem, "\t" LLU " outbound packet%s failed due to insufficient memory\n");
 220         p(out_noroute, "\t" LLU " outbound packet%s with no route\n");
 221         hist(ipsecstat.out_ahhist, ipsec_ahnames, "AH output");
 222         hist(ipsecstat.out_esphist, ipsec_espnames, "ESP output");
 223         hist(ipsecstat.out_comphist, ipsec_compnames, "IPComp output");
 224 #undef p
 225 #undef hist
 226 }
 227
 228 void
 229 ipsec_stats(u_long off __unused, const char *name, int af1 __unused)
 230 {
 231         if (off == 0)
 232                 return;
 233         printf ("%s:\n", name);
 234         kread(off, (char *)&ipsecstat, sizeof (ipsecstat));
 235
 236         print_ipsecstats();
 237 }
 238
 239 static const char *
 240 pfkey_msgtype_names(int x)
 241 {
 242         const int max =
 243             sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]);
 244         static char buf[10];
 245
 246         if (x < max && pfkey_msgtypenames[x])
 247                 return pfkey_msgtypenames[x];
 248         snprintf(buf, sizeof(buf), "#%d", x);
 249         return buf;
 250 }
 251
 252 void
 253 pfkey_stats(u_long off __unused, const char *name, int af1 __unused)
 254 {
 255         struct pfkeystat pfkeystat;
 256         unsigned first, type;
 257
 258         if (off == 0)
 259                 return;
 260         printf ("%s:\n", name);
 261         kread(off, (char *)&pfkeystat, sizeof(pfkeystat));
 262
 263 #define p(f, m) if (pfkeystat.f || sflag <= 1) \
 264     printf(m, (CAST)pfkeystat.f, plural(pfkeystat.f))
 265
 266         /* kernel -> userland */
 267         p(out_total, "\t" LLU " request%s sent to userland\n");
 268         p(out_bytes, "\t" LLU " byte%s sent to userland\n");
 269         for (first = 1, type = 0;
 270              type < sizeof(pfkeystat.out_msgtype)/sizeof(pfkeystat.out_msgtype[0]);
 271              type++) {
 272                 if (pfkeystat.out_msgtype[type] <= 0)
 273                         continue;
 274                 if (first) {
 275                         printf("\thistogram by message type:\n");
 276                         first = 0;
 277                 }
 278                 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type),
 279                         (CAST)pfkeystat.out_msgtype[type]);
 280         }
 281         p(out_invlen, "\t" LLU " message%s with invalid length field\n");
 282         p(out_invver, "\t" LLU " message%s with invalid version field\n");
 283         p(out_invmsgtype, "\t" LLU " message%s with invalid message type field\n");
 284         p(out_tooshort, "\t" LLU " message%s too short\n");
 285         p(out_nomem, "\t" LLU " message%s with memory allocation failure\n");
 286         p(out_dupext, "\t" LLU " message%s with duplicate extension\n");
 287         p(out_invexttype, "\t" LLU " message%s with invalid extension type\n");
 288         p(out_invsatype, "\t" LLU " message%s with invalid sa type\n");
 289         p(out_invaddr, "\t" LLU " message%s with invalid address extension\n");
 290
 291         /* userland -> kernel */
 292         p(in_total, "\t" LLU " request%s sent from userland\n");
 293         p(in_bytes, "\t" LLU " byte%s sent from userland\n");
 294         for (first = 1, type = 0;
 295              type < sizeof(pfkeystat.in_msgtype)/sizeof(pfkeystat.in_msgtype[0]);
 296              type++) {
 297                 if (pfkeystat.in_msgtype[type] <= 0)
 298                         continue;
 299                 if (first) {
 300                         printf("\thistogram by message type:\n");
 301                         first = 0;
 302                 }
 303                 printf("\t\t%s: " LLU "\n", pfkey_msgtype_names(type),
 304                         (CAST)pfkeystat.in_msgtype[type]);
 305         }
 306         p(in_msgtarget[KEY_SENDUP_ONE],
 307             "\t" LLU " message%s toward single socket\n");
 308         p(in_msgtarget[KEY_SENDUP_ALL],
 309             "\t" LLU " message%s toward all sockets\n");
 310         p(in_msgtarget[KEY_SENDUP_REGISTERED],
 311             "\t" LLU " message%s toward registered sockets\n");
 312         p(in_nomem, "\t" LLU " message%s with memory allocation failure\n");
 313 #undef p
 314 }
 315 #endif /*IPSEC*/