netstat.tproj/mbuf.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1983, 1988, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * Redistribution and use in source and binary forms, with or without
  29  * modification, are permitted provided that the following conditions
  30  * are met:
  31  * 1. Redistributions of source code must retain the above copyright
  32  *    notice, this list of conditions and the following disclaimer.
  33  * 2. Redistributions in binary form must reproduce the above copyright
  34  *    notice, this list of conditions and the following disclaimer in the
  35  *    documentation and/or other materials provided with the distribution.
  36  * 3. All advertising materials mentioning features or use of this software
  37  *    must display the following acknowledgement:
  38  *      This product includes software developed by the University of
  39  *      California, Berkeley and its contributors.
  40  * 4. Neither the name of the University nor the names of its contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  */
  56
  57
  58 #include <sys/param.h>
  59 #include <sys/socket.h>
  60 #include <sys/mbuf.h>
  61 #include <sys/sysctl.h>
  62
  63 #include <stdio.h>
  64 #include "netstat.h"
  65 #include <netat/sysglue.h>    /* To get Appletalk message/mbuf types */
  66
  67 #define YES     1
  68 typedef int bool;
  69
  70 struct  mbstat mbstat;
  71
  72 static struct mbtypes {
  73         int     mt_type;
  74         char    *mt_name;
  75 } mbtypes[] = {
  76         { MT_DATA,      "data" },
  77         { MT_OOBDATA,   "oob data" },
  78         { MT_CONTROL,   "ancillary data" },
  79         { MT_HEADER,    "packet headers" },
  80         { MT_SOCKET,    "socket structures" },                  /* XXX */
  81         { MT_PCB,       "protocol control blocks" },            /* XXX */
  82         { MT_RTABLE,    "routing table entries" },              /* XXX */
  83         { MT_HTABLE,    "IMP host table entries" },             /* XXX */
  84         { MT_ATABLE,    "address resolution tables" },
  85         { MT_FTABLE,    "fragment reassembly queue headers" },  /* XXX */
  86         { MT_SONAME,    "socket names and addresses" },
  87         { MT_SOOPTS,    "socket options" },
  88         { MT_RIGHTS,    "access rights" },
  89         { MT_IFADDR,    "interface addresses" },                /* XXX */
  90         { MSG_DATA,     "Appletalk data blocks"},
  91         { MSG_PROTO,    "Appletalk internal msgs"},
  92         { MSG_IOCTL,    "Appletalk ioctl requests"},
  93         { MSG_ERROR,    "Appletalk error indicators"},
  94         { MSG_HANGUP,   "Appletalk termination requests"},
  95         { MSG_IOCACK,   "Appletalk ioctl acks"},
  96         { MSG_IOCNAK,   "Appletalk ioctl failure indicators"},
  97         { MSG_CTL,      "Appletalk control msgs"},
  98         { 0, 0 }
  99 };
 100
 101 int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
 102 bool seen[256];                 /* "have we seen this type yet?" */
 103
 104 /*
 105  * Print mbuf statistics.
 106  */
 107 void
 108 mbpr(void)
 109 {
 110         int totmem, totfree, totmbufs;
 111         int i;
 112         struct mbtypes *mp;
 113         size_t len;
 114
 115         if (nmbtypes != 256) {
 116                 fprintf(stderr,
 117                     "netstat: unexpected change to mbstat; check source\n");
 118                 return;
 119         }
 120         len = sizeof(mbstat);
 121         if (sysctlbyname("kern.ipc.mbstat", &mbstat, &len, 0, 0) == -1)
 122                 return;
 123
 124         totmbufs = 0;
 125         for (mp = mbtypes; mp->mt_name; mp++)
 126                 totmbufs += mbstat.m_mtypes[mp->mt_type];
 127         printf("%u mbufs in use:\n", totmbufs);
 128         for (mp = mbtypes; mp->mt_name; mp++)
 129                 if (mbstat.m_mtypes[mp->mt_type]) {
 130                         seen[mp->mt_type] = YES;
 131                         printf("\t%u mbufs allocated to %s\n",
 132                             mbstat.m_mtypes[mp->mt_type], mp->mt_name);
 133                 }
 134         seen[MT_FREE] = YES;
 135         for (i = 0; i < nmbtypes; i++)
 136                 if (!seen[i] && mbstat.m_mtypes[i]) {
 137                         printf("\t%u mbufs allocated to <mbuf type %d>\n",
 138                             mbstat.m_mtypes[i], i);
 139                 }
 140         printf("%u/%u mbuf clusters in use\n",
 141                (unsigned int)(mbstat.m_clusters - mbstat.m_clfree),
 142                (unsigned int)mbstat.m_clusters);
 143         printf("%u/%u mbuf 4KB clusters in use\n",
 144                (unsigned int)(mbstat.m_bigclusters - mbstat.m_bigclfree),
 145                (unsigned int)mbstat.m_bigclusters);
 146         totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES + mbstat.m_bigclusters * mbstat.m_bigmclbytes;
 147         totfree = mbstat.m_clfree * MCLBYTES + mbstat.m_bigclfree * mbstat.m_bigmclbytes;
 148         printf("%u Kbytes allocated to network (%d%% in use)\n",
 149                 totmem / 1024, (totmem - totfree) * 100 / totmem);
 150         printf("%u requests for memory denied\n",
 151                (unsigned int)mbstat.m_drops);
 152         printf("%u requests for memory delayed\n", (unsigned int)mbstat.m_wait);
 153         printf("%u calls to protocol drain routines\n",
 154                (unsigned int)mbstat.m_drain);
 155 }