e9814619fb
which is a more generic "that's not in the tree" response. ENOPROTOOPT was specific to the net subtree under the old framework, and didn't add much value (other than letting the caller know they were looking up something under the net subtree, which they presumably ought to have known already).
269 lines
7.4 KiB
C
269 lines
7.4 KiB
C
/* $NetBSD: mbuf.c,v 1.23 2004/04/09 18:48:05 atatat Exp $ */
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/*
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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. 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)mbuf.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: mbuf.c,v 1.23 2004/04/09 18:48:05 atatat Exp $");
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#endif
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#endif /* not lint */
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#define __POOL_EXPOSE
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#include <sys/param.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/mbuf.h>
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#include <sys/pool.h>
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#include <sys/sysctl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <errno.h>
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#include <err.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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struct pool mbpool, mclpool;
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struct pool_allocator mbpa, mclpa;
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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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{ MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */
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{ MT_SONAME, "socket names and addresses" },
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{ MT_SOOPTS, "socket options" },
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{ 0, 0 }
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};
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const 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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int mbstats_ctl[] = { CTL_KERN, KERN_MBUF, MBUF_STATS };
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int mowners_ctl[] = { CTL_KERN, KERN_MBUF, MBUF_MOWNERS };
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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(mbaddr, msizeaddr, mclbaddr, mbpooladdr, mclpooladdr)
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u_long mbaddr;
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u_long msizeaddr, mclbaddr;
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u_long mbpooladdr, mclpooladdr;
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{
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u_long totmem, totused, totpct;
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u_int totmbufs;
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int i, lines;
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struct mbtypes *mp;
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size_t len;
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void *data;
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struct mowner *mo;
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int mclbytes, msize;
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if (nmbtypes != 256) {
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fprintf(stderr,
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"%s: unexpected change to mbstat; check source\n",
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getprogname());
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return;
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}
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if (use_sysctl) {
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size_t mbstatlen = sizeof(mbstat);
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if (sysctl(mbstats_ctl,
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sizeof(mbstats_ctl) / sizeof(mbstats_ctl[0]),
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&mbstat, &mbstatlen, NULL, 0) < 0) {
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warn("mbstat: sysctl failed");
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return;
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}
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goto printit;
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}
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if (mbaddr == 0) {
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fprintf(stderr, "%s: mbstat: symbol not in namelist\n",
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getprogname());
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return;
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}
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/*XXX*/
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if (msizeaddr != 0)
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kread(msizeaddr, (char *)&msize, sizeof (msize));
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else
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msize = MSIZE;
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if (mclbaddr != 0)
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kread(mclbaddr, (char *)&mclbytes, sizeof (mclbytes));
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else
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mclbytes = MCLBYTES;
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/*XXX*/
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if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
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return;
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if (kread(mbpooladdr, (char *)&mbpool, sizeof (mbpool)))
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return;
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if (kread(mclpooladdr, (char *)&mclpool, sizeof (mclpool)))
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return;
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mbpooladdr = (u_long) mbpool.pr_alloc;
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mclpooladdr = (u_long) mclpool.pr_alloc;
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if (kread(mbpooladdr, (char *)&mbpa, sizeof (mbpa)))
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return;
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if (kread(mclpooladdr, (char *)&mclpa, sizeof (mclpa)))
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return;
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printit:
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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 mbufs in use:\n", totmbufs);
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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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if (use_sysctl) /* XXX */
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goto dump_drain;
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printf("%lu/%lu mapped pages in use\n",
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(u_long)(mclpool.pr_nget - mclpool.pr_nput),
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((u_long)mclpool.pr_npages * mclpool.pr_itemsperpage));
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totmem = (mbpool.pr_npages << mbpa.pa_pageshift) +
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(mclpool.pr_npages << mclpa.pa_pageshift);
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totused = (mbpool.pr_nget - mbpool.pr_nput) * mbpool.pr_size +
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(mclpool.pr_nget - mclpool.pr_nput) * mclpool.pr_size;
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if (totmem == 0)
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totpct = 0;
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else if (totused < (ULONG_MAX/100))
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totpct = (totused * 100)/totmem;
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else {
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u_long totmem1 = totmem/100;
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u_long totused1 = totused/100;
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totpct = (totused1 * 100)/totmem1;
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}
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printf("%lu Kbytes allocated to network (%lu%% in use)\n",
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totmem / 1024, totpct);
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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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dump_drain:
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printf("%lu calls to protocol drain routines\n", mbstat.m_drain);
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if (sflag < 2)
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return;
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if (!use_sysctl)
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return;
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if (sysctl(mowners_ctl, sizeof(mowners_ctl)/sizeof(mowners_ctl[0]),
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NULL, &len, NULL, 0) < 0) {
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if (errno == ENOENT)
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return;
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warn("mowners: sysctl test");
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return;
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}
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len += 10 * sizeof(mo); /* add some slop */
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data = malloc(len);
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if (data == NULL) {
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warn("malloc(%lu)", (u_long)len);
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return;
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}
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if (sysctl(mowners_ctl, sizeof(mowners_ctl)/sizeof(mowners_ctl[0]),
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data, &len, NULL, 0) < 0) {
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warn("mowners: sysctl get");
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free(data);
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return;
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}
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for (mo = (void *) data, lines = 0; len >= sizeof(*mo);
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len -= sizeof(*mo), mo++) {
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char buf[32];
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if (vflag == 1 &&
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mo->mo_claims == 0 &&
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mo->mo_ext_claims == 0 &&
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mo->mo_cluster_claims == 0)
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continue;
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if (vflag == 0 &&
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mo->mo_claims == mo->mo_releases &&
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mo->mo_ext_claims == mo->mo_ext_releases &&
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mo->mo_cluster_claims == mo->mo_cluster_releases)
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continue;
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snprintf(buf, sizeof(buf), "%16s %-13s",
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mo->mo_name, mo->mo_descr);
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if ((lines % 24) == 0 || lines > 24) {
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printf("%30s %-8s %10s %10s %10s\n",
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"", "", "small", "ext", "cluster");
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lines = 1;
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}
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printf("%30s %-8s %10lu %10lu %10lu\n",
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buf, "inuse",
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mo->mo_claims - mo->mo_releases,
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mo->mo_ext_claims - mo->mo_ext_releases,
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mo->mo_cluster_claims - mo->mo_cluster_releases);
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lines++;
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if (vflag) {
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printf("%30s %-8s %10lu %10lu %10lu\n",
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"", "claims",
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mo->mo_claims,
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mo->mo_ext_claims,
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mo->mo_cluster_claims);
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printf("%30s %-8s %10lu %10lu %10lu\n",
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"", "releases",
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mo->mo_releases,
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mo->mo_ext_releases,
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mo->mo_cluster_releases);
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lines += 2;
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}
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}
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free(data);
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}
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