400 lines
12 KiB
C
400 lines
12 KiB
C
/* $NetBSD: mroute.c,v 1.21 2006/05/28 16:51:40 elad Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Stephen Deering of Stanford University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)mroute.c 8.1 (Berkeley) 6/6/93
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*/
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/*
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* Copyright (c) 1989 Stephen Deering
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*
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* This code is derived from software contributed to Berkeley by
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* Stephen Deering of Stanford University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)mroute.c 8.1 (Berkeley) 6/6/93
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "from: @(#)mroute.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: mroute.c,v 1.21 2006/05/28 16:51:40 elad Exp $");
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#endif
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#endif /* not lint */
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/*
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* Print multicast routing structures and statistics.
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*
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* MROUTING 1.0
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/protosw.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/igmp.h>
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#define _KERNEL
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#include <netinet/ip_mroute.h>
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#undef _KERNEL
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#include <stdio.h>
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#include <stdlib.h>
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#include <kvm.h>
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#include "netstat.h"
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static char *pktscale __P((u_long));
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static void print_bw_meter __P((struct bw_meter *, int *));
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static char *
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pktscale(n)
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u_long n;
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{
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static char buf[20];
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char t;
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if (n < 1024)
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t = ' ';
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else if (n < 1024 * 1024) {
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t = 'k';
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n /= 1024;
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} else {
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t = 'm';
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n /= 1048576;
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}
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(void)snprintf(buf, sizeof buf, "%lu%c", n, t);
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return (buf);
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}
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void
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mroutepr(mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr)
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u_long mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr;
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{
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u_int mrtproto;
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LIST_HEAD(, mfc) *mfchashtbl;
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u_long mfchash;
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struct vif viftable[MAXVIFS];
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struct mfc *mfcp, mfc;
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struct vif *v;
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vifi_t vifi;
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int i;
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int banner_printed;
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int saved_numeric_addr;
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int numvifs;
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int nmfc; /* No. of cache entries */
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if (mrpaddr == 0) {
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printf("ip_mrtproto: symbol not in namelist\n");
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return;
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}
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kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
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switch (mrtproto) {
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case 0:
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printf("no multicast routing compiled into this system\n");
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return;
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case IGMP_DVMRP:
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break;
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default:
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printf("multicast routing protocol %u, unknown\n", mrtproto);
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return;
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}
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if (mfchashtbladdr == 0) {
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printf("mfchashtbl: symbol not in namelist\n");
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return;
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}
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if (mfchashaddr == 0) {
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printf("mfchash: symbol not in namelist\n");
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return;
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}
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if (vifaddr == 0) {
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printf("viftable: symbol not in namelist\n");
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return;
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}
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saved_numeric_addr = numeric_addr;
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numeric_addr = 1;
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kread(vifaddr, (char *)&viftable, sizeof(viftable));
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banner_printed = 0;
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numvifs = 0;
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for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
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if (v->v_lcl_addr.s_addr == 0)
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continue;
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numvifs = vifi;
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if (!banner_printed) {
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printf("\nVirtual Interface Table\n %s%s",
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"Vif Thresh Limit Local-Address ",
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"Remote-Address Pkt_in Pkt_out\n");
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banner_printed = 1;
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}
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printf(" %3u %3u %5u %-15.15s",
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vifi, v->v_threshold, v->v_rate_limit,
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routename4(v->v_lcl_addr.s_addr));
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printf(" %-15.15s %6lu %7lu\n", (v->v_flags & VIFF_TUNNEL) ?
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routename4(v->v_rmt_addr.s_addr) : "",
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v->v_pkt_in, v->v_pkt_out);
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}
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if (!banner_printed)
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printf("\nVirtual Interface Table is empty\n");
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kread(mfchashtbladdr, (char *)&mfchashtbl, sizeof(mfchashtbl));
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kread(mfchashaddr, (char *)&mfchash, sizeof(mfchash));
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banner_printed = 0;
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nmfc = 0;
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if (mfchashtbl != 0)
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for (i = 0; i <= mfchash; ++i) {
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kread((u_long)&mfchashtbl[i], (char *)&mfcp, sizeof(mfcp));
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for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
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if (!banner_printed) {
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printf("\nMulticast Forwarding Cache\n %s%s",
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"Hash Origin Mcastgroup ",
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"Traffic In-Vif Out-Vifs/Forw-ttl\n");
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banner_printed = 1;
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}
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kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
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printf(" %3u %-15.15s",
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i, routename4(mfc.mfc_origin.s_addr));
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printf(" %-15.15s %7s %3u ",
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routename4(mfc.mfc_mcastgrp.s_addr),
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pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
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for (vifi = 0; vifi <= numvifs; ++vifi)
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if (mfc.mfc_ttls[vifi])
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printf(" %u/%u", vifi, mfc.mfc_ttls[vifi]);
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printf("\n");
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/* Print the bw meter information */
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{
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struct bw_meter bw_meter, *bwm;
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int banner_printed2 = 0;
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bwm = mfc.mfc_bw_meter;
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while (bwm) {
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kread((u_long)bwm,
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(char *)&bw_meter,
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sizeof bw_meter);
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print_bw_meter(&bw_meter,
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&banner_printed2);
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bwm = bw_meter.bm_mfc_next;
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}
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#if 0 /* Don't ever print it? */
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if (! banner_printed2)
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printf("\n No Bandwidth Meters\n");
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#endif
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}
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nmfc++;
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}
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}
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if (!banner_printed)
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printf("\nMulticast Forwarding Cache is empty\n");
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else
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printf("\nTotal no. of entries in cache: %d\n", nmfc);
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printf("\n");
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numeric_addr = saved_numeric_addr;
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}
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static void
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print_bw_meter(bw_meter, banner_printed)
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struct bw_meter *bw_meter;
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int *banner_printed;
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{
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char s0[256], s1[256], s2[256], s3[256];
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struct timeval now, end, delta;
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gettimeofday(&now, NULL);
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if (! *banner_printed) {
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printf(" Bandwidth Meters\n");
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printf(" %-30s", "Measured(Start|Packets|Bytes)");
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printf(" %s", "Type");
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printf(" %-30s", "Thresh(Interval|Packets|Bytes)");
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printf(" Remain");
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printf("\n");
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*banner_printed = 1;
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}
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/* The measured values */
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if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
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sprintf(s1, "%llu", (unsigned long long)bw_meter->bm_measured.b_packets);
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else
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sprintf(s1, "?");
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if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
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sprintf(s2, "%llu", (unsigned long long)bw_meter->bm_measured.b_bytes);
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else
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sprintf(s2, "?");
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sprintf(s0, "%lu.%lu|%s|%s",
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bw_meter->bm_start_time.tv_sec,
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bw_meter->bm_start_time.tv_usec,
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s1, s2);
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printf(" %-30s", s0);
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/* The type of entry */
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sprintf(s0, "%s", "?");
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if (bw_meter->bm_flags & BW_METER_GEQ)
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sprintf(s0, "%s", ">=");
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else if (bw_meter->bm_flags & BW_METER_LEQ)
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sprintf(s0, "%s", "<=");
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printf(" %-3s", s0);
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/* The threshold values */
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if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
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sprintf(s1, "%llu", (unsigned long long)bw_meter->bm_threshold.b_packets);
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else
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sprintf(s1, "?");
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if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
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sprintf(s2, "%llu", (unsigned long long)bw_meter->bm_threshold.b_bytes);
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else
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sprintf(s2, "?");
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sprintf(s0, "%lu.%lu|%s|%s",
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bw_meter->bm_threshold.b_time.tv_sec,
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bw_meter->bm_threshold.b_time.tv_usec,
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s1, s2);
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printf(" %-30s", s0);
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/* Remaining time */
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timeradd(&bw_meter->bm_start_time,
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&bw_meter->bm_threshold.b_time, &end);
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if (timercmp(&now, &end, <=)) {
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timersub(&end, &now, &delta);
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sprintf(s3, "%lu.%lu", delta.tv_sec, delta.tv_usec);
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} else {
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/* Negative time */
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timersub(&now, &end, &delta);
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sprintf(s3, "-%lu.%lu", delta.tv_sec, delta.tv_usec);
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}
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printf(" %s", s3);
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printf("\n");
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}
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void
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mrt_stats(mrpaddr, mstaddr)
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u_long mrpaddr, mstaddr;
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{
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u_int mrtproto;
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struct mrtstat mrtstat;
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if (mrpaddr == 0) {
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printf("ip_mrtproto: symbol not in namelist\n");
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return;
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}
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kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
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switch (mrtproto) {
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case 0:
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printf("no multicast routing compiled into this system\n");
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return;
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case IGMP_DVMRP:
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break;
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default:
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printf("multicast routing protocol %u, unknown\n", mrtproto);
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return;
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}
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if (mstaddr == 0) {
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printf("mrtstat: symbol not in namelist\n");
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return;
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}
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kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
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printf("multicast routing:\n");
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printf("\t%lu datagram%s with no route for origin\n",
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mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
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printf("\t%lu upcall%s made to mrouted\n",
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mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
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printf("\t%lu datagram%s with malformed tunnel options\n",
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mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
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printf("\t%lu datagram%s with no room for tunnel options\n",
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mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
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printf("\t%lu datagram%s arrived on wrong interface\n",
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mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
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printf("\t%lu datagram%s dropped due to upcall Q overflow\n",
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mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
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printf("\t%lu datagram%s dropped due to upcall socket overflow\n",
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mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
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printf("\t%lu datagram%s cleaned up by the cache\n",
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mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
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printf("\t%lu datagram%s dropped selectively by ratelimiter\n",
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mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
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printf("\t%lu datagram%s dropped - bucket Q overflow\n",
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mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
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printf("\t%lu datagram%s dropped - larger than bkt size\n",
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mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
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}
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