FreeBSD-5.3/usr.bin/netstat/mbuf.c
/*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/netstat/mbuf.c,v 1.42 2004/07/26 20:18:11 charnier Exp $");
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "netstat.h"
#define YES 1
typedef int bool;
static struct mbtypenames {
short mt_type;
const char *mt_name;
} mbtypenames[] = {
{ MT_DATA, "data" },
{ MT_OOBDATA, "oob data" },
{ MT_CONTROL, "ancillary data" },
{ MT_HEADER, "packet headers" },
#ifdef MT_SOCKET
{ MT_SOCKET, "socket structures" }, /* XXX */
#endif
#ifdef MT_PCB
{ MT_PCB, "protocol control blocks" }, /* XXX */
#endif
#ifdef MT_RTABLE
{ MT_RTABLE, "routing table entries" }, /* XXX */
#endif
#ifdef MT_HTABLE
{ MT_HTABLE, "IMP host table entries" }, /* XXX */
#endif
#ifdef MT_ATABLE
{ MT_ATABLE, "address resolution tables" },
#endif
{ MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
{ MT_SONAME, "socket names and addresses" },
#ifdef MT_SOOPTS
{ MT_SOOPTS, "socket options" },
#endif
#ifdef MT_RIGHTS
{ MT_RIGHTS, "access rights" },
#endif
#ifdef MT_IFADDR
{ MT_IFADDR, "interface addresses" }, /* XXX */
#endif
{ 0, 0 }
};
/*
* Print mbuf statistics.
*/
void
mbpr(u_long mbaddr, u_long mbtaddr __unused, u_long nmbcaddr, u_long nmbufaddr,
u_long mbhiaddr, u_long clhiaddr, u_long mbloaddr, u_long clloaddr,
u_long cpusaddr __unused, u_long pgsaddr, u_long mbpaddr)
{
int i, nmbclusters;
int nsfbufs, nsfbufspeak, nsfbufsused;
short nmbtypes;
size_t mlen;
long *mbtypes = NULL;
struct mbstat *mbstat = NULL;
struct mbtypenames *mp;
bool *seen = NULL;
mlen = sizeof *mbstat;
if ((mbstat = malloc(mlen)) == NULL) {
warn("malloc: cannot allocate memory for mbstat");
goto err;
}
if (mbaddr) {
if (kread(mbaddr, (char *)mbstat, sizeof mbstat))
goto err;
if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int)))
goto err;
} else {
mlen = sizeof *mbstat;
if (sysctlbyname("kern.ipc.mbstat", mbstat, &mlen, NULL, 0)
< 0) {
warn("sysctl: retrieving mbstat");
goto err;
}
mlen = sizeof(int);
if (sysctlbyname("kern.ipc.nmbclusters", &nmbclusters, &mlen,
NULL, 0) < 0) {
warn("sysctl: retrieving nmbclusters");
goto err;
}
}
if (mbstat->m_mbufs < 0) mbstat->m_mbufs = 0; /* XXX */
if (mbstat->m_mclusts < 0) mbstat->m_mclusts = 0; /* XXX */
nmbtypes = mbstat->m_numtypes;
if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) {
warn("calloc: cannot allocate memory for mbtypes seen flag");
goto err;
}
if ((mbtypes = calloc(nmbtypes, sizeof(long *))) == NULL) {
warn("calloc: cannot allocate memory for mbtypes");
goto err;
}
#undef MSIZE
#define MSIZE (mbstat->m_msize)
#undef MCLBYTES
#define MCLBYTES (mbstat->m_mclbytes)
printf("%lu mbufs in use\n", mbstat->m_mbufs);
for (mp = mbtypenames; mp->mt_name; mp++) {
if (mbtypes[mp->mt_type]) {
seen[mp->mt_type] = YES;
printf("\t %lu mbufs allocated to %s\n",
mbtypes[mp->mt_type], mp->mt_name);
}
}
for (i = 1; i < nmbtypes; i++) {
if (!seen[i] && mbtypes[i])
printf("\t %lu mbufs allocated to <mbuf type: %d>\n",
mbtypes[i], i);
}
printf("%lu/%d mbuf clusters in use (current/max)\n",
mbstat->m_mclusts, nmbclusters);
mlen = sizeof(nsfbufs);
if (!sysctlbyname("kern.ipc.nsfbufs", &nsfbufs, &mlen, NULL, 0) &&
!sysctlbyname("kern.ipc.nsfbufsused", &nsfbufsused, &mlen, NULL,
0) &&
!sysctlbyname("kern.ipc.nsfbufspeak", &nsfbufspeak, &mlen, NULL,
0)) {
printf("%d/%d/%d sfbufs in use (current/peak/max)\n",
nsfbufsused, nsfbufspeak, nsfbufs);
}
printf("%lu KBytes allocated to network\n", (mbstat->m_mbufs * MSIZE +
mbstat->m_mclusts * MCLBYTES) / 1024);
printf("%lu requests for sfbufs denied\n", mbstat->sf_allocfail);
printf("%lu requests for sfbufs delayed\n", mbstat->sf_allocwait);
printf("%lu requests for I/O initiated by sendfile\n",
mbstat->sf_iocnt);
printf("%lu calls to protocol drain routines\n", mbstat->m_drain);
err:
if (mbtypes != NULL)
free(mbtypes);
if (seen != NULL)
free(seen);
if (mbstat != NULL)
free(mbstat);
}