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pfkey.c revision 1.1
      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*/
    181