Return to mbuf.c CVS log

Up to [local] / src / usr.bin / netstat

Annotation of src/usr.bin/netstat/mbuf.c, Revision 1.1.1.1

1.1       deraadt     1: /*     $NetBSD: mbuf.c,v 1.8 1995/10/03 21:42:41 thorpej 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: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "from: @(#)mbuf.c       8.1 (Berkeley) 6/6/93";
                     39: #else
                     40: static char *rcsid = "$NetBSD: mbuf.c,v 1.8 1995/10/03 21:42:41 thorpej Exp $";
                     41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include <sys/param.h>
                     45: #include <sys/protosw.h>
                     46: #include <sys/socket.h>
                     47: #include <sys/mbuf.h>
                     48:
                     49: #include <stdio.h>
                     50: #include "netstat.h"
                     51:
                     52: #define        YES     1
                     53: typedef int bool;
                     54:
                     55: struct mbstat mbstat;
                     56:
                     57: static struct mbtypes {
                     58:        int     mt_type;
                     59:        char    *mt_name;
                     60: } mbtypes[] = {
                     61:        { MT_DATA,      "data" },
                     62:        { MT_OOBDATA,   "oob data" },
                     63:        { MT_CONTROL,   "ancillary data" },
                     64:        { MT_HEADER,    "packet headers" },
                     65:        { MT_FTABLE,    "fragment reassembly queue headers" },  /* XXX */
                     66:        { MT_SONAME,    "socket names and addresses" },
                     67:        { MT_SOOPTS,    "socket options" },
                     68:        { 0, 0 }
                     69: };
                     70:
                     71: int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
                     72: bool seen[256];                        /* "have we seen this type yet?" */
                     73:
                     74: /*
                     75:  * Print mbuf statistics.
                     76:  */
                     77: void
                     78: mbpr(mbaddr)
                     79:        u_long mbaddr;
                     80: {
                     81:        register int totmem, totfree, totmbufs;
                     82:        register int i;
                     83:        register struct mbtypes *mp;
                     84:
                     85:        if (nmbtypes != 256) {
                     86:                fprintf(stderr,
                     87:                    "%s: unexpected change to mbstat; check source\n", prog);
                     88:                return;
                     89:        }
                     90:        if (mbaddr == 0) {
                     91:                fprintf(stderr, "%s: mbstat: symbol not in namelist\n", prog);
                     92:                return;
                     93:        }
                     94:        if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
                     95:                return;
                     96:        totmbufs = 0;
                     97:        for (mp = mbtypes; mp->mt_name; mp++)
                     98:                totmbufs += mbstat.m_mtypes[mp->mt_type];
                     99:        printf("%u mbufs in use:\n", totmbufs);
                    100:        for (mp = mbtypes; mp->mt_name; mp++)
                    101:                if (mbstat.m_mtypes[mp->mt_type]) {
                    102:                        seen[mp->mt_type] = YES;
                    103:                        printf("\t%u mbufs allocated to %s\n",
                    104:                            mbstat.m_mtypes[mp->mt_type], mp->mt_name);
                    105:                }
                    106:        seen[MT_FREE] = YES;
                    107:        for (i = 0; i < nmbtypes; i++)
                    108:                if (!seen[i] && mbstat.m_mtypes[i]) {
                    109:                        printf("\t%u mbufs allocated to <mbuf type %d>\n",
                    110:                            mbstat.m_mtypes[i], i);
                    111:                }
                    112:        printf("%u/%u mapped pages in use\n",
                    113:                mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
                    114:        totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
                    115:        totfree = mbstat.m_clfree * MCLBYTES;
                    116:        printf("%u Kbytes allocated to network (%d%% in use)\n",
                    117:                totmem / 1024, (totmem - totfree) * 100 / totmem);
                    118:        printf("%u requests for memory denied\n", mbstat.m_drops);
                    119:        printf("%u requests for memory delayed\n", mbstat.m_wait);
                    120:        printf("%u calls to protocol drain routines\n", mbstat.m_drain);
                    121: }