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 * @(#)mbuf.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.bin/netstat/mbuf.c,v 1.17.2.3 2001/08/10 09:07:09 ru Exp $ 35 * $DragonFly: src/usr.bin/netstat/mbuf.c,v 1.2 2003/06/17 04:29:30 dillon Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/mbuf.h> 40 #include <sys/protosw.h> 41 #include <sys/socket.h> 42 #include <sys/sysctl.h> 43 44 #include <err.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include "netstat.h" 48 49 #define YES 1 50 typedef int bool; 51 52 static struct mbtypenames { 53 int mt_type; 54 char *mt_name; 55 } mbtypenames[] = { 56 { MT_DATA, "data" }, 57 { MT_OOBDATA, "oob data" }, 58 { MT_CONTROL, "ancillary data" }, 59 { MT_HEADER, "packet headers" }, 60 #ifdef MT_SOCKET 61 { MT_SOCKET, "socket structures" }, /* XXX */ 62 #endif 63 #ifdef MT_PCB 64 { MT_PCB, "protocol control blocks" }, /* XXX */ 65 #endif 66 #ifdef MT_RTABLE 67 { MT_RTABLE, "routing table entries" }, /* XXX */ 68 #endif 69 #ifdef MT_HTABLE 70 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 71 #endif 72 #ifdef MT_ATABLE 73 { MT_ATABLE, "address resolution tables" }, 74 #endif 75 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 76 { MT_SONAME, "socket names and addresses" }, 77 #ifdef MT_SOOPTS 78 { MT_SOOPTS, "socket options" }, 79 #endif 80 #ifdef MT_RIGHTS 81 { MT_RIGHTS, "access rights" }, 82 #endif 83 #ifdef MT_IFADDR 84 { MT_IFADDR, "interface addresses" }, /* XXX */ 85 #endif 86 { 0, 0 } 87 }; 88 89 /* 90 * Print mbuf statistics. 91 */ 92 void 93 mbpr(u_long mbaddr, u_long mbtaddr, u_long nmbcaddr, u_long nmbufaddr) 94 { 95 u_long totmem, totpossible, totmbufs; 96 register int i; 97 struct mbstat mbstat; 98 struct mbtypenames *mp; 99 int name[3], nmbclusters, nmbufs, nmbtypes; 100 size_t nmbclen, nmbuflen, mbstatlen, mbtypeslen; 101 u_long *mbtypes; 102 bool *seen; /* "have we seen this type yet?" */ 103 104 mbtypes = NULL; 105 seen = NULL; 106 107 /* 108 * XXX 109 * We can't kread() mbtypeslen from a core image so we'll 110 * bogusly assume it's the same as in the running kernel. 111 */ 112 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 113 warn("sysctl: retrieving mbtypes length"); 114 goto err; 115 } 116 if ((mbtypes = malloc(mbtypeslen)) == NULL) { 117 warn("malloc: %lu bytes for mbtypes", (u_long)mbtypeslen); 118 goto err; 119 } 120 121 nmbtypes = mbtypeslen / sizeof(*mbtypes); 122 if ((seen = calloc(nmbtypes, sizeof(*seen))) == NULL) { 123 warn("calloc"); 124 goto err; 125 } 126 127 if (mbaddr) { 128 if (kread(mbaddr, (char *)&mbstat, sizeof mbstat)) 129 goto err; 130 if (kread(mbtaddr, (char *)mbtypes, mbtypeslen)) 131 goto err; 132 if (kread(nmbcaddr, (char *)&nmbclusters, sizeof(int))) 133 goto err; 134 if (kread(nmbufaddr, (char *)&nmbufs, sizeof(int))) 135 goto err; 136 } else { 137 name[0] = CTL_KERN; 138 name[1] = KERN_IPC; 139 name[2] = KIPC_MBSTAT; 140 mbstatlen = sizeof mbstat; 141 if (sysctl(name, 3, &mbstat, &mbstatlen, 0, 0) < 0) { 142 warn("sysctl: retrieving mbstat"); 143 goto err; 144 } 145 146 if (sysctlbyname("kern.ipc.mbtypes", mbtypes, &mbtypeslen, NULL, 147 0) < 0) { 148 warn("sysctl: retrieving mbtypes"); 149 goto err; 150 } 151 152 name[2] = KIPC_NMBCLUSTERS; 153 nmbclen = sizeof(int); 154 if (sysctl(name, 3, &nmbclusters, &nmbclen, 0, 0) < 0) { 155 warn("sysctl: retrieving nmbclusters"); 156 goto err; 157 } 158 159 nmbuflen = sizeof(int); 160 if (sysctlbyname("kern.ipc.nmbufs", &nmbufs, &nmbuflen, 0, 0) < 0) { 161 warn("sysctl: retrieving nmbufs"); 162 goto err; 163 } 164 } 165 166 #undef MSIZE 167 #define MSIZE (mbstat.m_msize) 168 #undef MCLBYTES 169 #define MCLBYTES (mbstat.m_mclbytes) 170 171 totmbufs = 0; 172 for (mp = mbtypenames; mp->mt_name; mp++) 173 totmbufs += mbtypes[mp->mt_type]; 174 printf("%lu/%lu/%u mbufs in use (current/peak/max):\n", totmbufs, 175 mbstat.m_mbufs, nmbufs); 176 for (mp = mbtypenames; mp->mt_name; mp++) 177 if (mbtypes[mp->mt_type]) { 178 seen[mp->mt_type] = YES; 179 printf("\t%lu mbufs allocated to %s\n", 180 mbtypes[mp->mt_type], mp->mt_name); 181 } 182 seen[MT_FREE] = YES; 183 for (i = 0; i < nmbtypes; i++) 184 if (!seen[i] && mbtypes[i]) { 185 printf("\t%lu mbufs allocated to <mbuf type %d>\n", 186 mbtypes[i], i); 187 } 188 printf("%lu/%lu/%u mbuf clusters in use (current/peak/max)\n", 189 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters, 190 nmbclusters); 191 totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES; 192 totpossible = nmbclusters * MCLBYTES + MSIZE * nmbufs; 193 printf("%lu Kbytes allocated to network (%lu%% of mb_map in use)\n", 194 totmem / 1024, (totmem * 100) / totpossible); 195 printf("%lu requests for memory denied\n", mbstat.m_drops); 196 printf("%lu requests for memory delayed\n", mbstat.m_wait); 197 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 198 199 err: 200 if (mbtypes != NULL) 201 free(mbtypes); 202 if (seen != NULL) 203 free(seen); 204 } 205