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