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 36 static char sccsid[] = "@(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD: src/usr.bin/netstat/mbuf.c,v 1.17.2.3 2001/08/10 09:07:09 ru Exp $"; 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 54 typedef int bool; 55 56 static 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 */ 96 void 97 mbpr(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, nmbtypes; 104 size_t nmbclen, nmbuflen, 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 #undef MSIZE 171 #define MSIZE (mbstat.m_msize) 172 #undef MCLBYTES 173 #define MCLBYTES (mbstat.m_mclbytes) 174 175 totmbufs = 0; 176 for (mp = mbtypenames; mp->mt_name; mp++) 177 totmbufs += mbtypes[mp->mt_type]; 178 printf("%lu/%lu/%u mbufs in use (current/peak/max):\n", totmbufs, 179 mbstat.m_mbufs, nmbufs); 180 for (mp = mbtypenames; mp->mt_name; mp++) 181 if (mbtypes[mp->mt_type]) { 182 seen[mp->mt_type] = YES; 183 printf("\t%lu mbufs allocated to %s\n", 184 mbtypes[mp->mt_type], mp->mt_name); 185 } 186 seen[MT_FREE] = YES; 187 for (i = 0; i < nmbtypes; i++) 188 if (!seen[i] && mbtypes[i]) { 189 printf("\t%lu mbufs allocated to <mbuf type %d>\n", 190 mbtypes[i], i); 191 } 192 printf("%lu/%lu/%u mbuf clusters in use (current/peak/max)\n", 193 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters, 194 nmbclusters); 195 totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * MCLBYTES; 196 totpossible = nmbclusters * MCLBYTES + MSIZE * nmbufs; 197 printf("%lu Kbytes allocated to network (%lu%% of mb_map in use)\n", 198 totmem / 1024, (totmem * 100) / totpossible); 199 printf("%lu requests for memory denied\n", mbstat.m_drops); 200 printf("%lu requests for memory delayed\n", mbstat.m_wait); 201 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 202 203 err: 204 if (mbtypes != NULL) 205 free(mbtypes); 206 if (seen != NULL) 207 free(seen); 208 } 209