1/* 2 * Copyright (c) 1983, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 37#endif 38static const char rcsid[] =
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39 "$FreeBSD: head/usr.bin/netstat/mbuf.c 78309 2001-06-15 23:07:59Z assar $";
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39 "$FreeBSD: head/usr.bin/netstat/mbuf.c 78314 2001-06-15 23:35:13Z assar $"; |
40#endif /* not lint */ 41 42#include <sys/param.h> 43#include <sys/mbuf.h> 44#include <sys/protosw.h> 45#include <sys/socket.h> 46#include <sys/sysctl.h> 47 48#include <err.h> 49#include <stdio.h> 50#include <stdlib.h> 51#include "netstat.h" 52 53#define YES 1 54typedef int bool; 55 56static struct mbtypenames { 57 int mt_type; 58 char *mt_name; 59} mbtypenames[] = { 60 { MT_DATA, "data" }, 61 { MT_OOBDATA, "oob data" }, 62 { MT_CONTROL, "ancillary data" }, 63 { MT_HEADER, "packet headers" }, 64#ifdef MT_SOCKET 65 { MT_SOCKET, "socket structures" }, /* XXX */ 66#endif 67#ifdef MT_PCB 68 { MT_PCB, "protocol control blocks" }, /* XXX */ 69#endif 70#ifdef MT_RTABLE 71 { MT_RTABLE, "routing table entries" }, /* XXX */ 72#endif 73#ifdef MT_HTABLE 74 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 75#endif 76#ifdef MT_ATABLE 77 { MT_ATABLE, "address resolution tables" }, 78#endif 79 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 80 { MT_SONAME, "socket names and addresses" }, 81#ifdef MT_SOOPTS 82 { MT_SOOPTS, "socket options" }, 83#endif 84#ifdef MT_RIGHTS 85 { MT_RIGHTS, "access rights" }, 86#endif 87#ifdef MT_IFADDR 88 { MT_IFADDR, "interface addresses" }, /* XXX */ 89#endif 90 { 0, 0 } 91}; 92 93/* 94 * Print mbuf statistics. 95 */ 96void
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97mbpr(mbaddr, mbtaddr, nmbcaddr, nmbufaddr)
98 u_long mbaddr, mbtaddr, nmbcaddr, nmbufaddr;
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97mbpr(u_long mbaddr, u_long mbtaddr, u_long nmbcaddr, u_long nmbufaddr) |
98{ 99 u_long totmem, totpossible, totmbufs; 100 register int i; 101 struct mbstat mbstat; 102 struct mbtypenames *mp; 103 int name[3], nmbclusters, nmbufs, nmbcnt, nmbtypes; 104 size_t nmbclen, nmbuflen, nmbcntlen, mbstatlen, mbtypeslen; 105 u_long *mbtypes; 106 bool *seen; /* "have we seen this type yet?" */ 107 108 mbtypes = NULL; 109 seen = NULL; 110 111 /* 112 * XXX 113 * We can't kread() mbtypeslen from a core image so we'll 114 * bogusly assume it's the same as in the running kernel. 115 */ 116 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 117 warn("sysctl: retrieving mbtypes length"); 118 goto err; 119 } 120 if ((mbtypes = malloc(mbtypeslen)) == NULL) { 121 warn("malloc: %lu bytes for mbtypes", (u_long)mbtypeslen); 122 goto err; 123 } 124 125 nmbtypes = mbtypeslen / sizeof(*mbtypes); 126 if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) { 127 warn("calloc"); 128 goto err; 129 } 130 131 if (mbaddr) { 132 if (kread(mbaddr, (char *)&mbstat, sizeof mbstat)) 133 goto err; 134 if (kread(mbtaddr, (char *)mbtypes, mbtypeslen)) 135 goto err; 136 if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int))) 137 goto err; 138 if (kread(nmbufaddr, (char *)&nmbufs, sizeof(int))) 139 goto err; 140 } else { 141 name[0] = CTL_KERN; 142 name[1] = KERN_IPC; 143 name[2] = KIPC_MBSTAT; 144 mbstatlen = sizeof mbstat; 145 if (sysctl(name, 3, &mbstat, &mbstatlen, 0, 0) < 0) { 146 warn("sysctl: retrieving mbstat"); 147 goto err; 148 } 149 150 if (sysctlbyname("kern.ipc.mbtypes", mbtypes, &mbtypeslen, NULL, 151 0) < 0) { 152 warn("sysctl: retrieving mbtypes"); 153 goto err; 154 } 155 156 name[2] = KIPC_NMBCLUSTERS; 157 nmbclen = sizeof(int); 158 if (sysctl(name, 3, &nmbclusters, &nmbclen, 0, 0) < 0) { 159 warn("sysctl: retrieving nmbclusters"); 160 goto err; 161 } 162 163 nmbuflen = sizeof(int); 164 if (sysctlbyname("kern.ipc.nmbufs", &nmbufs, &nmbuflen, 0, 0) < 0) { 165 warn("sysctl: retrieving nmbufs"); 166 goto err; 167 } 168 } 169 170 nmbcntlen = sizeof(int); 171 if (sysctlbyname("kern.ipc.nmbcnt", &nmbcnt, &nmbcntlen, 0, 0) < 0) { 172 warn("sysctl: retrieving nmbcnt"); 173 goto err; 174 } 175 176#undef MSIZE 177#define MSIZE (mbstat.m_msize) 178#undef MCLBYTES 179#define MCLBYTES (mbstat.m_mclbytes) 180 181 totmbufs = 0; 182 for (mp = mbtypenames; mp->mt_name; mp++) 183 totmbufs += mbtypes[mp->mt_type]; 184 printf("%lu/%lu/%u mbufs in use (current/peak/max):\n", totmbufs, 185 mbstat.m_mbufs, nmbufs); 186 for (mp = mbtypenames; mp->mt_name; mp++) 187 if (mbtypes[mp->mt_type]) { 188 seen[mp->mt_type] = YES; 189 printf("\t%lu mbufs allocated to %s\n", 190 mbtypes[mp->mt_type], mp->mt_name); 191 } 192 seen[MT_FREE] = YES; 193 for (i = 0; i < nmbtypes; i++) 194 if (!seen[i] && mbtypes[i]) { 195 printf("\t%lu mbufs allocated to <mbuf type %d>\n", 196 mbtypes[i], i); 197 } 198 printf("%lu/%lu/%u mbuf clusters in use (current/peak/max)\n", 199 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters, 200 nmbclusters); 201 printf("%lu/%lu m_ext reference counters (in use/allocated)\n", 202 mbstat.m_refcnt - mbstat.m_refree, mbstat.m_refcnt); 203 totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES + 204 mbstat.m_refcnt * sizeof(union mext_refcnt); 205 totpossible = nmbclusters * MCLBYTES + nmbufs * MSIZE + 206 nmbcnt * sizeof(union mext_refcnt); 207 printf("%lu Kbytes allocated to network (%lu%% of mb_map in use)\n", 208 totmem / 1024, (totmem * 100) / totpossible); 209 printf("%lu requests for memory denied\n", mbstat.m_drops); 210 printf("%lu requests for memory delayed\n", mbstat.m_wait); 211 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 212 213err: 214 if (mbtypes != NULL) 215 free(mbtypes); 216 if (seen != NULL) 217 free(seen); 218}
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