netstat.tproj/mroute.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) 1989 Stephen Deering
  26  * Copyright (c) 1992, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  *
  29  * This code is derived from software contributed to Berkeley by
  30  * Stephen Deering of Stanford University.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)mroute.c    8.2 (Berkeley) 4/28/95
  61  */
  62
  63 /*
  64  * Print DVMRP multicast routing structures and statistics.
  65  *
  66  * MROUTING 1.0
  67  */
  68
  69 #include <sys/param.h>
  70 #include <sys/queue.h>
  71 #include <sys/socket.h>
  72 #include <sys/socketvar.h>
  73 #include <sys/mbuf.h>
  74 #include <sys/time.h>
  75 #include <sys/sysctl.h>
  76
  77 #include <net/if.h>
  78 #include <netinet/in.h>
  79 #include <netinet/igmp.h>
  80 #include <net/route.h>
  81 #include <netinet/ip_mroute.h>
  82
  83 #include <stdio.h>
  84 #include <stdlib.h>
  85 #include "netstat.h"
  86
  87 void
  88 mroutepr(void)
  89 {
  90         struct mfc **mfctable = 0;
  91         struct vif viftable[MAXVIFS];
  92         struct mfc mfc, *m;
  93         register struct vif *v;
  94         register vifi_t vifi;
  95         register int i;
  96         register int banner_printed;
  97         register int saved_nflag;
  98         vifi_t maxvif = 0;
  99         size_t len;
 100
 101         saved_nflag = nflag;
 102         nflag = 1;
 103
 104         len = MAXVIFS * sizeof(struct vif);
 105         if (sysctlbyname("net.inet.ip.viftable", viftable, &len, 0, 0) == -1) {
 106                 printf("No IPv4 multicast routing compiled into this system.\n");
 107                 return;
 108         }
 109
 110         banner_printed = 0;
 111         for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
 112                 if (v->v_lcl_addr.s_addr == 0)
 113                         continue;
 114
 115                 maxvif = vifi;
 116                 if (!banner_printed) {
 117                         printf("\nVirtual Interface Table\n"
 118                                " Vif   Thresh   Rate   Local-Address   "
 119                                "Remote-Address    Pkts-In   Pkts-Out\n");
 120                         banner_printed = 1;
 121                 }
 122
 123                 printf(" %2u    %6u   %4d   %-15.15s",
 124                                         /* opposite math of add_vif() */
 125                     vifi, v->v_threshold, v->v_rate_limit * 1000 / 1024,
 126                     routename(v->v_lcl_addr.s_addr));
 127                 printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ?
 128                     routename(v->v_rmt_addr.s_addr) : "");
 129
 130                 printf(" %9lu  %9lu\n", v->v_pkt_in, v->v_pkt_out);
 131         }
 132         if (!banner_printed)
 133                 printf("\nVirtual Interface Table is empty\n");
 134
 135         if (sysctlbyname("net.inet.ip.mfctable", 0, &len, 0, 0) == -1) {
 136                 printf("No IPv4 multicast routing compiled into this system.\n");
 137                 return;
 138         }
 139         mfctable = malloc(len);
 140         if (mfctable == 0)
 141                 return;
 142         if (sysctlbyname("net.inet.ip.mfctable", mfctable, &len, 0, 0) == -1) {
 143                 printf("No IPv4 multicast routing compiled into this system.\n");
 144                 return;
 145         }
 146         banner_printed = 0;
 147         for (i = 0; i < MFCTBLSIZ; ++i) {
 148                 m = mfctable[i];
 149                 while(m) {
 150                         if (!banner_printed) {
 151                                 printf("\nIPv4 Multicast Forwarding Cache\n"
 152                                        " Origin          Group            "
 153                                        " Packets In-Vif  Out-Vifs:Ttls\n");
 154                                 banner_printed = 1;
 155                         }
 156
 157                         printf(" %-15.15s", routename(mfc.mfc_origin.s_addr));
 158                         printf(" %-15.15s", routename(mfc.mfc_mcastgrp.s_addr));
 159                         printf(" %9lu", mfc.mfc_pkt_cnt);
 160                         printf("  %3d   ", mfc.mfc_parent);
 161                         for (vifi = 0; vifi <= maxvif; vifi++) {
 162                                 if (mfc.mfc_ttls[vifi] > 0)
 163                                         printf(" %u:%u", vifi,
 164                                                mfc.mfc_ttls[vifi]);
 165                         }
 166                         printf("\n");
 167                         m = mfc.mfc_next;
 168                 }
 169         }
 170         if (!banner_printed)
 171                 printf("\nMulticast Routing Table is empty\n");
 172
 173         printf("\n");
 174         nflag = saved_nflag;
 175
 176         free(mfctable);
 177 }
 178
 179
 180 void
 181 mrt_stats()
 182 {
 183         struct mrtstat mrtstat;
 184         size_t len = sizeof(struct mrtstat);
 185
 186         if(sysctlbyname("net.inet.ip.mrtstat", &mrtstat, &len, 0, 0) == -1) {
 187                 printf("No IPv4 multicast routing compiled into this system.\n");
 188                 return;
 189         }
 190
 191         printf("IPv4 multicast forwarding:\n");
 192         printf(" %10lu multicast forwarding cache lookup%s\n",
 193           mrtstat.mrts_mfc_lookups, plural(mrtstat.mrts_mfc_lookups));
 194         printf(" %10lu multicast forwarding cache miss%s\n",
 195           mrtstat.mrts_mfc_misses, plurales(mrtstat.mrts_mfc_misses));
 196         printf(" %10lu upcall%s to mrouted\n",
 197           mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
 198         printf(" %10lu upcall queue overflow%s\n",
 199           mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
 200         printf(" %10lu upcall%s dropped due to full socket buffer\n",
 201           mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
 202         printf(" %10lu cache cleanup%s\n",
 203           mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
 204         printf(" %10lu datagram%s with no route for origin\n",
 205           mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
 206         printf(" %10lu datagram%s arrived with bad tunneling\n",
 207           mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
 208         printf(" %10lu datagram%s could not be tunneled\n",
 209           mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
 210         printf(" %10lu datagram%s arrived on wrong interface\n",
 211           mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
 212         printf(" %10lu datagram%s selectively dropped\n",
 213           mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
 214         printf(" %10lu datagram%s dropped due to queue overflow\n",
 215           mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
 216         printf(" %10lu datagram%s dropped for being too large\n",
 217           mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
 218 }