1 /* $NetBSD: mbuf.c,v 1.12 1997/10/19 05:50:04 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "from: @(#)mbuf.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: mbuf.c,v 1.12 1997/10/19 05:50:04 lukem Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/protosw.h> 47 #include <sys/socket.h> 48 #include <sys/mbuf.h> 49 50 #include <stdio.h> 51 #include "netstat.h" 52 53 #define YES 1 54 typedef int bool; 55 56 struct mbstat mbstat; 57 58 static struct mbtypes { 59 int mt_type; 60 char *mt_name; 61 } mbtypes[] = { 62 { MT_DATA, "data" }, 63 { MT_OOBDATA, "oob data" }, 64 { MT_CONTROL, "ancillary data" }, 65 { MT_HEADER, "packet headers" }, 66 { MT_FTABLE, "fragment reassembly queue headers" }, /* XXX */ 67 { MT_SONAME, "socket names and addresses" }, 68 { MT_SOOPTS, "socket options" }, 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, msizeaddr, mclbaddr) 80 u_long mbaddr; 81 u_long msizeaddr, mclbaddr; 82 { 83 int totmem, totfree, totmbufs; 84 int i; 85 struct mbtypes *mp; 86 87 int mclbytes, msize; 88 89 if (nmbtypes != 256) { 90 fprintf(stderr, 91 "%s: unexpected change to mbstat; check source\n", 92 __progname); 93 return; 94 } 95 if (mbaddr == 0) { 96 fprintf(stderr, "%s: mbstat: symbol not in namelist\n", 97 __progname); 98 return; 99 } 100 /*XXX*/ 101 if (msizeaddr != 0) 102 kread(msizeaddr, (char *)&msize, sizeof (msize)); 103 else 104 msize = MSIZE; 105 if (mclbaddr != 0) 106 kread(mclbaddr, (char *)&mclbytes, sizeof (mclbytes)); 107 else 108 mclbytes = MCLBYTES; 109 /*XXX*/ 110 111 if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat))) 112 return; 113 totmbufs = 0; 114 for (mp = mbtypes; mp->mt_name; mp++) 115 totmbufs += mbstat.m_mtypes[mp->mt_type]; 116 printf("%u mbufs in use:\n", totmbufs); 117 for (mp = mbtypes; mp->mt_name; mp++) 118 if (mbstat.m_mtypes[mp->mt_type]) { 119 seen[mp->mt_type] = YES; 120 printf("\t%u mbufs allocated to %s\n", 121 mbstat.m_mtypes[mp->mt_type], mp->mt_name); 122 } 123 seen[MT_FREE] = YES; 124 for (i = 0; i < nmbtypes; i++) 125 if (!seen[i] && mbstat.m_mtypes[i]) { 126 printf("\t%u mbufs allocated to <mbuf type %d>\n", 127 mbstat.m_mtypes[i], i); 128 } 129 printf("%lu/%lu mapped pages in use\n", 130 mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters); 131 totmem = totmbufs * msize + mbstat.m_clusters * mclbytes; 132 totfree = mbstat.m_clfree * mclbytes; 133 printf("%u Kbytes allocated to network (%d%% in use)\n", 134 totmem / 1024, (totmem - totfree) * 100 / totmem); 135 printf("%lu requests for memory denied\n", mbstat.m_drops); 136 printf("%lu requests for memory delayed\n", mbstat.m_wait); 137 printf("%lu calls to protocol drain routines\n", mbstat.m_drain); 138 } 139