usr.bin/netstat/pfkey.c

   1 /*      $NetBSD: pfkey.c,v 1.1 2012/01/06 14:21:16 drochner Exp $       */
   2 /*      $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $  */
   3
   4 /*
   5  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the project nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Copyright (c) 1983, 1988, 1993
  35  *      The Regents of the University of California.  All rights reserved.
  36  *
  37  * Redistribution and use in source and binary forms, with or without
  38  * modification, are permitted provided that the following conditions
  39  * are met:
  40  * 1. Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  * 2. Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in the
  44  *    documentation and/or other materials provided with the distribution.
  45  * 3. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  */
  61
  62 #include <sys/cdefs.h>
  63 #ifndef lint
  64 #if 0
  65 static char sccsid[] = "from: @(#)inet.c        8.4 (Berkeley) 4/20/94";
  66 #else
  67 #ifdef __NetBSD__
  68 __RCSID("$NetBSD: pfkey.c,v 1.1 2012/01/06 14:21:16 drochner Exp $");
  69 #endif
  70 #endif
  71 #endif /* not lint */
  72
  73 #include <sys/param.h>
  74 #include <sys/queue.h>
  75 #include <sys/socket.h>
  76 #include <sys/sysctl.h>
  77
  78 #ifdef IPSEC
  79 #include <netipsec/keysock.h>
  80 #endif
  81
  82 #include <err.h>
  83 #include <stdio.h>
  84 #include <string.h>
  85 #include <unistd.h>
  86 #include "netstat.h"
  87
  88 #ifdef IPSEC
  89
  90 static const char *pfkey_msgtypenames[] = {
  91         "reserved", "getspi", "update", "add", "delete",
  92         "get", "acquire", "register", "expire", "flush",
  93         "dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd",
  94         "x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush",
  95         "x_spdsetidx", "x_spdexpire", "x_spddelete2"
  96 };
  97
  98 static const char *pfkey_msgtype_names(int);
  99
 100 static const char *
 101 pfkey_msgtype_names(int x)
 102 {
 103         const int max =
 104             sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]);
 105         static char buf[20];
 106
 107         if (x < max && pfkey_msgtypenames[x])
 108                 return pfkey_msgtypenames[x];
 109         snprintf(buf, sizeof(buf), "#%d", x);
 110         return buf;
 111 }
 112
 113 void
 114 pfkey_stats(u_long off, const char *name)
 115 {
 116         uint64_t pfkeystat[PFKEY_NSTATS];
 117         int first, type;
 118
 119         if (use_sysctl) {
 120                 size_t size = sizeof(pfkeystat);
 121
 122                 if (sysctlbyname("net.key.stats", pfkeystat, &size,
 123                                  NULL, 0) == -1)
 124                         return;
 125         } else {
 126                 warnx("%s stats not available via KVM.", name);
 127                 return;
 128         }
 129
 130         printf ("%s:\n", name);
 131
 132 #define p(f, m) if (pfkeystat[f] || sflag <= 1) \
 133     printf(m, (unsigned long long)pfkeystat[f], plural(pfkeystat[f]))
 134
 135         /* userland -> kernel */
 136         p(PFKEY_STAT_OUT_TOTAL, "\t%llu request%s sent from userland\n");
 137         p(PFKEY_STAT_OUT_BYTES, "\t%llu byte%s sent from userland\n");
 138         for (first = 1, type = 0; type < 256; type++) {
 139                 if (pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type] == 0)
 140                         continue;
 141                 if (first) {
 142                         printf("\thistogram by message type:\n");
 143                         first = 0;
 144                 }
 145                 printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
 146                     (unsigned long long)pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type]);
 147         }
 148         p(PFKEY_STAT_OUT_INVLEN, "\t%llu message%s with invalid length field\n");
 149         p(PFKEY_STAT_OUT_INVVER, "\t%llu message%s with invalid version field\n");
 150         p(PFKEY_STAT_OUT_INVMSGTYPE, "\t%llu message%s with invalid message type field\n");
 151         p(PFKEY_STAT_OUT_TOOSHORT, "\t%llu message%s too short\n");
 152         p(PFKEY_STAT_OUT_NOMEM, "\t%llu message%s with memory allocation failure\n");
 153         p(PFKEY_STAT_OUT_DUPEXT, "\t%llu message%s with duplicate extension\n");
 154         p(PFKEY_STAT_OUT_INVEXTTYPE, "\t%llu message%s with invalid extension type\n");
 155         p(PFKEY_STAT_OUT_INVSATYPE, "\t%llu message%s with invalid sa type\n");
 156         p(PFKEY_STAT_OUT_INVADDR, "\t%llu message%s with invalid address extension\n");
 157
 158         /* kernel -> userland */
 159         p(PFKEY_STAT_IN_TOTAL, "\t%llu request%s sent to userland\n");
 160         p(PFKEY_STAT_IN_BYTES, "\t%llu byte%s sent to userland\n");
 161         for (first = 1, type = 0; type < 256; type++) {
 162                 if (pfkeystat[PFKEY_STAT_IN_MSGTYPE + type] == 0)
 163                         continue;
 164                 if (first) {
 165                         printf("\thistogram by message type:\n");
 166                         first = 0;
 167                 }
 168                 printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
 169                     (unsigned long long)pfkeystat[PFKEY_STAT_IN_MSGTYPE + type]);
 170         }
 171         p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ONE,
 172             "\t%llu message%s toward single socket\n");
 173         p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ALL,
 174             "\t%llu message%s toward all sockets\n");
 175         p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_REGISTERED,
 176             "\t%llu message%s toward registered sockets\n");
 177         p(PFKEY_STAT_IN_NOMEM, "\t%llu message%s with memory allocation failure\n");
 178 #undef p
 179 }
 180 #endif /*IPSEC*/