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phunix/usr.bin/netstat/pfkey.c
David van Moolenbroek 66dfcc8533 Import NetBSD netstat(1) 
The port forces the use of sysctl(7), as obtaining information through
KVM is not and will never be viable.  The sysctl mode of netstat(1) is
currently somewhat limited and buggy, though.  We fix a few minimal
issues, but more improvements will have to come from NetBSD reimports.

Some of netstat(1)'s views are currently not supported by the
operating system.  Later improvements on this point will not require
changes to the imported code, though.

Change-Id: If74a6811f0fc81bd1ecc31010a28379b14b2a0eb
2017-03-09 23:40:14 +00:00

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6.8 KiB
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/* $NetBSD: pfkey.c,v 1.1 2012/01/06 14:21:16 drochner Exp $ */
/* $KAME: ipsec.c,v 1.33 2003/07/25 09:54:32 itojun Exp $ */
/*
* 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 <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94";
#else
#ifdef __NetBSD__
__RCSID("$NetBSD: pfkey.c,v 1.1 2012/01/06 14:21:16 drochner Exp $");
#endif
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#ifdef IPSEC
#include <netipsec/keysock.h>
#endif
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "netstat.h"
#ifdef IPSEC
static const char *pfkey_msgtypenames[] = {
"reserved", "getspi", "update", "add", "delete",
"get", "acquire", "register", "expire", "flush",
"dump", "x_promisc", "x_pchange", "x_spdupdate", "x_spdadd",
"x_spddelete", "x_spdget", "x_spdacquire", "x_spddump", "x_spdflush",
"x_spdsetidx", "x_spdexpire", "x_spddelete2"
};
static const char *pfkey_msgtype_names(int);
static const char *
pfkey_msgtype_names(int x)
{
const int max =
sizeof(pfkey_msgtypenames)/sizeof(pfkey_msgtypenames[0]);
static char buf[20];
if (x < max && pfkey_msgtypenames[x])
return pfkey_msgtypenames[x];
snprintf(buf, sizeof(buf), "#%d", x);
return buf;
}
void
pfkey_stats(u_long off, const char *name)
{
uint64_t pfkeystat[PFKEY_NSTATS];
int first, type;
if (use_sysctl) {
size_t size = sizeof(pfkeystat);
if (sysctlbyname("net.key.stats", pfkeystat, &size,
NULL, 0) == -1)
return;
} else {
warnx("%s stats not available via KVM.", name);
return;
}
printf ("%s:\n", name);
#define p(f, m) if (pfkeystat[f] || sflag <= 1) \
printf(m, (unsigned long long)pfkeystat[f], plural(pfkeystat[f]))
/* userland -> kernel */
p(PFKEY_STAT_OUT_TOTAL, "\t%llu request%s sent from userland\n");
p(PFKEY_STAT_OUT_BYTES, "\t%llu byte%s sent from userland\n");
for (first = 1, type = 0; type < 256; type++) {
if (pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type] == 0)
continue;
if (first) {
printf("\thistogram by message type:\n");
first = 0;
}
printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
(unsigned long long)pfkeystat[PFKEY_STAT_OUT_MSGTYPE + type]);
}
p(PFKEY_STAT_OUT_INVLEN, "\t%llu message%s with invalid length field\n");
p(PFKEY_STAT_OUT_INVVER, "\t%llu message%s with invalid version field\n");
p(PFKEY_STAT_OUT_INVMSGTYPE, "\t%llu message%s with invalid message type field\n");
p(PFKEY_STAT_OUT_TOOSHORT, "\t%llu message%s too short\n");
p(PFKEY_STAT_OUT_NOMEM, "\t%llu message%s with memory allocation failure\n");
p(PFKEY_STAT_OUT_DUPEXT, "\t%llu message%s with duplicate extension\n");
p(PFKEY_STAT_OUT_INVEXTTYPE, "\t%llu message%s with invalid extension type\n");
p(PFKEY_STAT_OUT_INVSATYPE, "\t%llu message%s with invalid sa type\n");
p(PFKEY_STAT_OUT_INVADDR, "\t%llu message%s with invalid address extension\n");
/* kernel -> userland */
p(PFKEY_STAT_IN_TOTAL, "\t%llu request%s sent to userland\n");
p(PFKEY_STAT_IN_BYTES, "\t%llu byte%s sent to userland\n");
for (first = 1, type = 0; type < 256; type++) {
if (pfkeystat[PFKEY_STAT_IN_MSGTYPE + type] == 0)
continue;
if (first) {
printf("\thistogram by message type:\n");
first = 0;
}
printf("\t\t%s: %llu\n", pfkey_msgtype_names(type),
(unsigned long long)pfkeystat[PFKEY_STAT_IN_MSGTYPE + type]);
}
p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ONE,
"\t%llu message%s toward single socket\n");
p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_ALL,
"\t%llu message%s toward all sockets\n");
p(PFKEY_STAT_IN_MSGTARGET + KEY_SENDUP_REGISTERED,
"\t%llu message%s toward registered sockets\n");
p(PFKEY_STAT_IN_NOMEM, "\t%llu message%s with memory allocation failure\n");
#undef p
}
#endif /*IPSEC*/
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