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 /*static char sccsid[] = "from: @(#)mbuf.c 8.1 (Berkeley) 6/6/93";*/ 36 static char *rcsid = "$Id: mbuf.c,v 1.5 1994/05/13 08:08:16 mycroft Exp $"; 37 #endif /* not lint */ 38 39 #include <sys/param.h> 40 #include <sys/protosw.h> 41 #include <sys/socket.h> 42 #include <sys/mbuf.h> 43 44 #include <stdio.h> 45 #include "netstat.h" 46 47 #define YES 1 48 typedef int bool; 49 50 struct mbstat mbstat; 51 52 static struct mbtypes { 53 int mt_type; 54 char *mt_name; 55 } mbtypes[] = { 56 { MT_DATA, "data" }, 57 { MT_OOBDATA, "oob data" }, 58 { MT_CONTROL, "ancillary data" }, 59 { MT_HEADER, "packet headers" }, 60 { MT_SOCKET, "socket structures" }, /* XXX */ 61 { MT_PCB, "protocol control blocks" }, /* XXX */ 62 { MT_RTABLE, "routing table entries" }, /* XXX */ 63 { MT_HTABLE, "IMP host table entries" }, /* XXX */ 64 { MT_ATABLE, "address resolution tables" }, 65 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 66 { MT_SONAME, "socket names and addresses" }, 67 { MT_SOOPTS, "socket options" }, 68 { MT_RIGHTS, "access rights" }, 69 { MT_IFADDR, "interface addresses" }, /* XXX */ 70 { 0, 0 } 71 }; 72 73 int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short); 74 bool seen[256]; /* "have we seen this type yet?" */ 75 76 /* 77 * Print mbuf statistics. 78 */ 79 void 80 mbpr(mbaddr) 81 u_long mbaddr; 82 { 83 register int totmem, totfree, totmbufs; 84 register int i; 85 register struct mbtypes *mp; 86 87 if (nmbtypes != 256) { 88 fprintf(stderr, 89 "%s: unexpected change to mbstat; check source\n", prog); 90 return; 91 } 92 if (mbaddr == 0) { 93 fprintf(stderr, "%s: mbstat: symbol not in namelist\n", prog); 94 return; 95 } 96 if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat))) 97 return; 98 totmbufs = 0; 99 for (mp = mbtypes; mp->mt_name; mp++) 100 totmbufs += mbstat.m_mtypes[mp->mt_type]; 101 printf("%u mbufs in use:\n", totmbufs); 102 for (mp = mbtypes; mp->mt_name; mp++) 103 if (mbstat.m_mtypes[mp->mt_type]) { 104 seen[mp->mt_type] = YES; 105 printf("\t%u mbufs allocated to %s\n", 106 mbstat.m_mtypes[mp->mt_type], mp->mt_name); 107 } 108 seen[MT_FREE] = YES; 109 for (i = 0; i < nmbtypes; i++) 110 if (!seen[i] && mbstat.m_mtypes[i]) { 111 printf("\t%u mbufs allocated to <mbuf type %d>\n", 112 mbstat.m_mtypes[i], i); 113 } 114 printf("%u/%u mapped pages in use\n", 115 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters); 116 totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES; 117 totfree = mbstat.m_clfree * MCLBYTES; 118 printf("%u Kbytes allocated to network (%d%% in use)\n", 119 totmem / 1024, (totmem - totfree) * 100 / totmem); 120 printf("%u requests for memory denied\n", mbstat.m_drops); 121 printf("%u requests for memory delayed\n", mbstat.m_wait); 122 printf("%u calls to protocol drain routines\n", mbstat.m_drain); 123 } 124