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freebsd/usr.bin/netstat/mroute.c

236 lines
7.1 KiB
C

/*
* Copyright (c) 1989 Stephen Deering
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Stephen Deering of Stanford University.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)mroute.c 8.1 (Berkeley) 6/6/93
*/
/*
* Print DVMRP multicast routing structures and statistics.
*
* MROUTING 1.0
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <sys/mbuf.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/igmp.h>
#include <net/route.h>
#define KERNEL 1 /* XXX bogus! */
#include <netinet/ip_mroute.h>
#undef KERNEL
#include <stdio.h>
#include <stdlib.h>
#include "netstat.h"
void
mroutepr(mrpaddr, mfcaddr, vifaddr)
u_long mrpaddr, mfcaddr, vifaddr;
{
u_int mrtproto;
struct mbuf *mfctable[MFCTBLSIZ];
struct vif viftable[MAXVIFS];
struct mbuf mb, *m;
struct mfc smfc;
register struct vif *v;
register vifi_t vifi;
register struct in_addr *grp;
register int i, n;
register int banner_printed;
register int saved_nflag;
vifi_t maxvif;
if (mrpaddr == 0) {
printf("ip_mrtproto: symbol not in namelist\n");
return;
}
kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
switch (mrtproto) {
case 0:
printf("no multicast routing compiled into this system\n");
return;
case IGMP_DVMRP:
break;
default:
printf("multicast routing protocol %u, unknown\n", mrtproto);
return;
}
if (mfcaddr == 0) {
printf("mfctable: symbol not in namelist\n");
return;
}
if (vifaddr == 0) {
printf("viftable: symbol not in namelist\n");
return;
}
saved_nflag = nflag;
nflag = 1;
kread(vifaddr, (char *)&viftable, sizeof(viftable));
banner_printed = 0;
for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
if (v->v_lcl_addr.s_addr == 0)
continue;
maxvif = vifi;
if (!banner_printed) {
printf("\nVirtual Interface Table\n"
" Vif Thresh Rate Local-Address "
"Remote-Address Pkts-In Pkts-Out\n");
banner_printed = 1;
}
printf(" %2u %6u %4d %-15.15s",
vifi, v->v_threshold, v->v_rate_limit,
routename(v->v_lcl_addr.s_addr));
printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ?
routename(v->v_rmt_addr.s_addr) : "");
printf(" %9lu %9lu\n", v->v_pkt_in, v->v_pkt_out);
}
if (!banner_printed)
printf("\nVirtual Interface Table is empty\n");
kread(mfcaddr, (char *)&mfctable, sizeof(mfctable));
banner_printed = 0;
for (i = 0; i < MFCTBLSIZ; ++i) {
m = mfctable[i];
while(m) {
kread((u_long)m, (char *)&mb, sizeof mb);
m = &mb;
if (!banner_printed) {
printf("\nMulticast Forwarding Cache\n"
" Origin Group "
" Packets In-Vif Out-Vifs:Ttls\n");
banner_printed = 1;
}
kread((u_long)mtod(m, char *),
(char *)&smfc, sizeof smfc);
printf(" %-15.15s", routename(smfc.mfc_origin.s_addr));
printf(" %-15.15s", routename(smfc.mfc_mcastgrp.s_addr));
printf(" %9lu", smfc.mfc_pkt_cnt);
printf(" %3d ", smfc.mfc_parent);
for (vifi = 0; vifi <= maxvif; vifi++) {
if (smfc.mfc_ttls[vifi] > 0)
printf(" %u:%u", vifi,
smfc.mfc_ttls[vifi]);
}
printf("\n");
m = m->m_act;
}
}
if (!banner_printed)
printf("\nMulticast Routing Table is empty\n");
printf("\n");
nflag = saved_nflag;
}
void
mrt_stats(mrpaddr, mstaddr)
u_long mrpaddr, mstaddr;
{
u_int mrtproto;
struct mrtstat mrtstat;
if(mrpaddr == 0) {
printf("ip_mrtproto: symbol not in namelist\n");
return;
}
kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
switch (mrtproto) {
case 0:
printf("no multicast routing compiled into this system\n");
return;
case IGMP_DVMRP:
break;
default:
printf("multicast routing protocol %u, unknown\n", mrtproto);
return;
}
if (mstaddr == 0) {
printf("mrtstat: symbol not in namelist\n");
return;
}
kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
printf("multicast forwarding:\n");
printf(" %10u multicast forwarding cache lookup%s\n",
mrtstat.mrts_mfc_lookups, plural(mrtstat.mrts_mfc_lookups));
printf(" %10u multicast forwarding cache miss%s\n",
mrtstat.mrts_mfc_misses, plurales(mrtstat.mrts_mfc_misses));
printf(" %10u upcall%s to mrouted\n",
mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
printf(" %10u upcall queue overflow%s\n",
mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
printf(" %10u upcall%s dropped due to full socket buffer\n",
mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
printf(" %10u cache cleanup%s\n",
mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
printf(" %10u datagram%s with no route for origin\n",
mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
printf(" %10u datagram%s arrived with bad tunneling\n",
mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
printf(" %10u datagram%s could not be tunneled\n",
mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
printf(" %10u datagram%s arrived on wrong interface\n",
mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
printf(" %10u datagram%s selectively dropped\n",
mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
printf(" %10u datagram%s dropped due to queue overflow\n",
mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
printf(" %10u datagram%s dropped for being too large\n",
mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
}