GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/netstat/mroute6.c Lines: 0 77 0.0 %
Date: 2017-11-13 Branches: 0 52 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: mroute6.c,v 1.23 2017/05/08 09:31:34 rzalamena Exp $	*/
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/*
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 * Copyright (C) 1998 WIDE Project.
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 * All rights reserved.
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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 project 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 PROJECT 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 PROJECT 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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/*
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 * Copyright (c) 1989 Stephen Deering
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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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 *	@(#)mroute.c	8.2 (Berkeley) 4/28/95
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 */
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#include <sys/types.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet6/ip6_mroute.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <util.h>
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#include "netstat.h"
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#define	WID_ORG	(lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */
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#define	WID_GRP	(lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */
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void
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mroute6pr(void)
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{
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	char *buf = NULL;
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	char fmtbuf[FMT_SCALED_STRSIZE];
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	struct mf6cinfo *mfc;
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	struct mif6info *mif;
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	size_t needed, mifi, nummifs, mfci, nummfcs;
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	int banner_printed, saved_nflag;
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	mifi_t maxmif = 0;
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	u_int mrtproto;
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	int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO };
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	size_t len = sizeof(int);
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	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),
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	    &mrtproto, &len, NULL, 0) == -1) {
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		if (errno != ENOPROTOOPT)
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			warn("mroute");
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		return;
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	}
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	switch (mrtproto) {
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	case 0:
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		break;
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	default:
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		printf("IPv6 multicast routing protocol %u, unknown\n",
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		    mrtproto);
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		return;
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	}
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	saved_nflag = nflag;
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	nflag = 1;
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	mib[3] = IPV6CTL_MRTMIF;
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	needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);
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	nummifs = needed / sizeof(*mif);
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	mif = (struct mif6info *)buf;
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	if (nummifs)
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		maxmif = mif[nummifs - 1].m6_mifi;
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	banner_printed = 0;
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	for (mifi = 0; mifi < nummifs; ++mifi, ++mif) {
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		char ifname[IFNAMSIZ];
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		if (mif->m6_ifindex == 0)
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			continue;
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		if (!banner_printed) {
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			printf("\nIPv6 Multicast Interface Table\n"
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			    " Mif   Rate   PhyIF   "
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			    "Pkts-In   Pkts-Out\n");
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			banner_printed = 1;
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		}
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		printf("  %2u   %4d",
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		    mif->m6_mifi, mif->m6_rate_limit);
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		printf("   %5s", (mif->m6_flags & MIFF_REGISTER) ?
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		    "reg0" : if_indextoname(mif->m6_ifindex, ifname));
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		printf(" %9llu  %9llu\n", mif->m6_pkt_in, mif->m6_pkt_out);
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	}
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	if (!banner_printed)
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		printf("IPv6 Multicast Interface Table is empty\n");
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	mib[3] = IPV6CTL_MRTMFC;
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	needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);
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	nummfcs = needed / sizeof(*mfc);
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	mfc = (struct mf6cinfo *)buf;
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	banner_printed = 0;
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	for (mfci = 0; mfci < nummfcs; ++mfci, ++mfc) {
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		if (!banner_printed) {
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			printf("\nIPv6 Multicast Forwarding Cache\n");
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			printf(" %-*.*s %-*.*s %s",
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			    WID_ORG, WID_ORG, "Origin",
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			    WID_GRP, WID_GRP, "Group",
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			    "  Packets Waits In-Mif  Out-Mifs\n");
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			banner_printed = 1;
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		}
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		printf(" %-*.*s", WID_ORG, WID_ORG,
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		    routename6(&mfc->mf6c_origin));
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		printf(" %-*.*s", WID_GRP, WID_GRP,
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		    routename6(&mfc->mf6c_mcastgrp));
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		fmt_scaled(mfc->mf6c_pkt_cnt, fmtbuf);
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		printf(" %9s", fmtbuf);
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		printf("   %3llu", mfc->mf6c_stall_cnt);
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		if (mfc->mf6c_parent == MF6C_INCOMPLETE_PARENT)
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			printf("  ---   ");
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		else
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			printf("  %3d   ", mfc->mf6c_parent);
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		for (mifi = 0; mifi <= MAXMIFS; mifi++) {
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			if (IF_ISSET(mifi, &mfc->mf6c_ifset))
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				printf(" %zu", mifi);
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		}
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		printf("\n");
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	}
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	if (!banner_printed)
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		printf("IPv6 Multicast Routing Table is empty");
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	printf("\n");
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	nflag = saved_nflag;
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	free(buf);
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}
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void
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mrt6_stats(void)
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{
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	struct mrt6stat mrt6stat;
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	u_int mrt6proto;
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	int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO };
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	int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS };
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	size_t len = sizeof(int);
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	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),
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	    &mrt6proto, &len, NULL, 0) == -1) {
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		if (errno != ENOPROTOOPT)
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			warn("mroute");
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		return;
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	}
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	switch (mrt6proto) {
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	case 0:
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		printf("no IPv6 multicast routing compiled into this system\n");
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		return;
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	default:
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		printf("IPv6 multicast routing protocol %u, unknown\n",
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		    mrt6proto);
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		return;
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	}
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	len = sizeof(mrt6stat);
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	if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]),
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	    &mrt6stat, &len, NULL, 0) == -1) {
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		if (errno != ENOPROTOOPT)
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			warn("mroute");
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		return;
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	}
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	printf("multicast forwarding:\n");
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	printf("\t%llu multicast forwarding cache lookup%s\n",
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	    mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups));
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	printf("\t%llu multicast forwarding cache miss%s\n",
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	    mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses));
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	printf("\t%llu upcall%s to mrouted\n",
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	    mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls));
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	printf("\t%llu upcall queue overflow%s\n",
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	    mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw));
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	printf("\t%llu upcall%s dropped due to full socket buffer\n",
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	    mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull));
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	printf("\t%llu cache cleanup%s\n",
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	    mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups));
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	printf("\t%llu datagram%s with no route for origin\n",
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	    mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route));
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	printf("\t%llu datagram%s arrived with bad tunneling\n",
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	    mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel));
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	printf("\t%llu datagram%s could not be tunneled\n",
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	    mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel));
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	printf("\t%llu datagram%s arrived on wrong interface\n",
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	    mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if));
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	printf("\t%llu datagram%s selectively dropped\n",
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	    mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel));
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	printf("\t%llu datagram%s dropped due to queue overflow\n",
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	    mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow));
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	printf("\t%llu datagram%s dropped for being too large\n",
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	    mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large));
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}