160 lines
5.0 KiB
C
160 lines
5.0 KiB
C
/*
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93";
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#endif
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static const char rcsid[] =
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"$Id: mbuf.c,v 1.13 1998/08/18 13:36:47 jb Exp $";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include <stdio.h>
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#include "netstat.h"
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#define YES 1
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typedef int bool;
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struct mbstat mbstat;
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static struct mbtypes {
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int mt_type;
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char *mt_name;
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} mbtypes[] = {
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{ MT_DATA, "data" },
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{ MT_OOBDATA, "oob data" },
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{ MT_CONTROL, "ancillary data" },
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{ MT_HEADER, "packet headers" },
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#ifdef MT_SOCKET
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{ MT_SOCKET, "socket structures" }, /* XXX */
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#endif
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#ifdef MT_PCB
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{ MT_PCB, "protocol control blocks" }, /* XXX */
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#endif
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{ MT_RTABLE, "routing table entries" }, /* XXX */
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#ifdef MT_HTABLE
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{ MT_HTABLE, "IMP host table entries" }, /* XXX */
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#endif
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#ifdef MT_ATABLE
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{ MT_ATABLE, "address resolution tables" },
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#endif
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{ MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
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{ MT_SONAME, "socket names and addresses" },
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#ifdef MT_SOOPTS
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{ MT_SOOPTS, "socket options" },
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#endif
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#ifdef MT_RIGHTS
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{ MT_RIGHTS, "access rights" },
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#endif
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#ifdef MT_IFADDR
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{ MT_IFADDR, "interface addresses" }, /* XXX */
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#endif
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{ 0, 0 }
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};
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int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
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bool seen[256]; /* "have we seen this type yet?" */
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/*
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* Print mbuf statistics.
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*/
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void
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mbpr()
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{
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register int totmem, totfree, totmbufs;
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register int i;
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register struct mbtypes *mp;
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int name[3], nmbclusters;
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size_t nmbclen, mbstatlen;
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name[0] = CTL_KERN;
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name[1] = KERN_IPC;
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name[2] = KIPC_MBSTAT;
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mbstatlen = sizeof mbstat;
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if (sysctl(name, 3, &mbstat, &mbstatlen, 0, 0) < 0) {
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warn("sysctl: retrieving mbstat");
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return;
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}
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name[2] = KIPC_NMBCLUSTERS;
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nmbclen = sizeof(int);
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if (sysctl(name, 3, &nmbclusters, &nmbclen, 0, 0) < 0) {
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warn("sysctl: retrieving nmbclusters");
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return;
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}
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#undef MSIZE
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#define MSIZE (mbstat.m_msize)
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#undef MCLBYTES
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#define MCLBYTES (mbstat.m_mclbytes)
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if (nmbtypes != 256) {
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warnx("unexpected change to mbstat; check source");
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return;
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}
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totmbufs = 0;
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for (mp = mbtypes; mp->mt_name; mp++)
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totmbufs += mbstat.m_mtypes[mp->mt_type];
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printf("%u/%lu mbufs in use:\n", totmbufs, mbstat.m_mbufs);
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for (mp = mbtypes; mp->mt_name; mp++)
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if (mbstat.m_mtypes[mp->mt_type]) {
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seen[mp->mt_type] = YES;
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printf("\t%u mbufs allocated to %s\n",
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mbstat.m_mtypes[mp->mt_type], mp->mt_name);
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}
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seen[MT_FREE] = YES;
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for (i = 0; i < nmbtypes; i++)
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if (!seen[i] && mbstat.m_mtypes[i]) {
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printf("\t%u mbufs allocated to <mbuf type %d>\n",
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mbstat.m_mtypes[i], i);
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}
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printf("%lu/%lu/%u mbuf clusters in use (current/peak/max)\n",
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mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters,
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nmbclusters);
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totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
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totfree = mbstat.m_clfree * MCLBYTES +
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MSIZE * (mbstat.m_mbufs - totmbufs);
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printf("%u Kbytes allocated to network (%d%% in use)\n",
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totmem / 1024, (unsigned) (totmem - totfree) * 100 / totmem);
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printf("%lu requests for memory denied\n", mbstat.m_drops);
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printf("%lu requests for memory delayed\n", mbstat.m_wait);
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printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
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}
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