netstat.tproj/mbuf.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1983, 1988, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by the University of
  40  *      California, Berkeley and its contributors.
  41  * 4. Neither the name of the University nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  */
  57
  58
  59 #include <sys/param.h>
  60 #include <sys/protosw.h>
  61 #include <sys/socket.h>
  62 #include <sys/mbuf.h>
  63
  64 #include <stdio.h>
  65 #include "netstat.h"
  66 #include <netat/sysglue.h>    /* To get Appletalk message/mbuf types */
  67
  68 #define YES     1
  69 typedef int bool;
  70
  71 struct  mbstat mbstat;
  72
  73 static struct mbtypes {
  74         int     mt_type;
  75         char    *mt_name;
  76 } mbtypes[] = {
  77         { MT_DATA,      "data" },
  78         { MT_OOBDATA,   "oob data" },
  79         { MT_CONTROL,   "ancillary data" },
  80         { MT_HEADER,    "packet headers" },
  81         { MT_SOCKET,    "socket structures" },                  /* XXX */
  82         { MT_PCB,       "protocol control blocks" },            /* XXX */
  83         { MT_RTABLE,    "routing table entries" },              /* XXX */
  84         { MT_HTABLE,    "IMP host table entries" },             /* XXX */
  85         { MT_ATABLE,    "address resolution tables" },
  86         { MT_FTABLE,    "fragment reassembly queue headers" },  /* XXX */
  87         { MT_SONAME,    "socket names and addresses" },
  88         { MT_SOOPTS,    "socket options" },
  89         { MT_RIGHTS,    "access rights" },
  90         { MT_IFADDR,    "interface addresses" },                /* XXX */
  91         { MSG_DATA,     "Appletalk data blocks"},
  92         { MSG_PROTO,    "Appletalk internal msgs"},
  93         { MSG_IOCTL,    "Appletalk ioctl requests"},
  94         { MSG_ERROR,    "Appletalk error indicators"},
  95         { MSG_HANGUP,   "Appletalk termination requests"},
  96         { MSG_IOCACK,   "Appletalk ioctl acks"},
  97         { MSG_IOCNAK,   "Appletalk ioctl failure indicators"},
  98         { MSG_CTL,      "Appletalk control msgs"},
  99         { 0, 0 }
 100 };
 101
 102 int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
 103 bool seen[256];                 /* "have we seen this type yet?" */
 104
 105 /*
 106  * Print mbuf statistics.
 107  */
 108 void
 109 mbpr(mbaddr)
 110         u_long mbaddr;
 111 {
 112         register int totmem, totfree, totmbufs;
 113         register int i;
 114         register struct mbtypes *mp;
 115
 116         if (nmbtypes != 256) {
 117                 fprintf(stderr,
 118                     "netstat: unexpected change to mbstat; check source\n");
 119                 return;
 120         }
 121         if (mbaddr == 0) {
 122                 fprintf(stderr, "netstat: mbstat: symbol not in namelist\n");
 123                 return;
 124         }
 125         if (kread(mbaddr, (char *)&mbstat, sizeof (mbstat)))
 126                 return;
 127
 128         totmbufs = 0;
 129         for (mp = mbtypes; mp->mt_name; mp++)
 130                 totmbufs += mbstat.m_mtypes[mp->mt_type];
 131         printf("%u mbufs in use:\n", totmbufs);
 132         for (mp = mbtypes; mp->mt_name; mp++)
 133                 if (mbstat.m_mtypes[mp->mt_type]) {
 134                         seen[mp->mt_type] = YES;
 135                         printf("\t%u mbufs allocated to %s\n",
 136                             mbstat.m_mtypes[mp->mt_type], mp->mt_name);
 137                 }
 138         seen[MT_FREE] = YES;
 139         for (i = 0; i < nmbtypes; i++)
 140                 if (!seen[i] && mbstat.m_mtypes[i]) {
 141                         printf("\t%u mbufs allocated to <mbuf type %d>\n",
 142                             mbstat.m_mtypes[i], i);
 143                 }
 144         printf("%u/%u mbuf clusters in use\n",
 145                (unsigned int)(mbstat.m_clusters - mbstat.m_clfree),
 146                (unsigned int)mbstat.m_clusters);
 147         totmem = totmbufs * MSIZE + mbstat.m_clusters * MCLBYTES;
 148         totfree = mbstat.m_clfree * MCLBYTES;
 149         printf("%u Kbytes allocated to network (%d%% in use)\n",
 150                 totmem / 1024, (totmem - totfree) * 100 / totmem);
 151         printf("%u requests for memory denied\n",
 152                (unsigned int)mbstat.m_drops);
 153         printf("%u requests for memory delayed\n", (unsigned int)mbstat.m_wait);
 154         printf("%u calls to protocol drain routines\n",
 155                (unsigned int)mbstat.m_drain);
 156 }