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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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     *  | 
    
    
    7  | 
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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  | 
    
    
    9  | 
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     * are met:  | 
    
    
    10  | 
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     * 1. Redistributions of source code must retain the above copyright  | 
    
    
    11  | 
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     *    notice, this list of conditions and the following disclaimer.  | 
    
    
    12  | 
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     * 2. Redistributions in binary form must reproduce the above copyright  | 
    
    
    13  | 
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     *    notice, this list of conditions and the following disclaimer in the  | 
    
    
    14  | 
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     *    documentation and/or other materials provided with the distribution.  | 
    
    
    15  | 
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     * 3. Neither the name of the project nor the names of its contributors  | 
    
    
    16  | 
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     *    may be used to endorse or promote products derived from this software  | 
    
    
    17  | 
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     *    without specific prior written permission.  | 
    
    
    18  | 
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     *  | 
    
    
    19  | 
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     * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND  | 
    
    
    20  | 
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     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  | 
    
    
    21  | 
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     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  | 
    
    
    22  | 
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     * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE  | 
    
    
    23  | 
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     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
    
    
    24  | 
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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)  | 
    
    
    26  | 
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     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  | 
    
    
    27  | 
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     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  | 
    
    
    28  | 
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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  | 
    
    
    35  | 
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     *	The Regents of the University of California.  All rights reserved.  | 
    
    
    36  | 
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     *  | 
    
    
    37  | 
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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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     *  | 
    
    
    40  | 
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     * Redistribution and use in source and binary forms, with or without  | 
    
    
    41  | 
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     * modification, are permitted provided that the following conditions  | 
    
    
    42  | 
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     * are met:  | 
    
    
    43  | 
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     * 1. Redistributions of source code must retain the above copyright  | 
    
    
    44  | 
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     *    notice, this list of conditions and the following disclaimer.  | 
    
    
    45  | 
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     * 2. Redistributions in binary form must reproduce the above copyright  | 
    
    
    46  | 
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     *    notice, this list of conditions and the following disclaimer in the  | 
    
    
    47  | 
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     *    documentation and/or other materials provided with the distribution.  | 
    
    
    48  | 
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     * 3. Neither the name of the University nor the names of its contributors  | 
    
    
    49  | 
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     *    may be used to endorse or promote products derived from this software  | 
    
    
    50  | 
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     *    without specific prior written permission.  | 
    
    
    51  | 
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     *  | 
    
    
    52  | 
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     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND  | 
    
    
    53  | 
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     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  | 
    
    
    54  | 
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     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  | 
    
    
    55  | 
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     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE  | 
    
    
    56  | 
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     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
    
    
    57  | 
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     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS  | 
    
    
    58  | 
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     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  | 
    
    
    59  | 
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     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  | 
    
    
    60  | 
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     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  | 
    
    
    61  | 
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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>  | 
    
    
    68  | 
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    #include <sys/select.h>  | 
    
    
    69  | 
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    #include <sys/socket.h>  | 
    
    
    70  | 
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    #include <sys/sysctl.h>  | 
    
    
    71  | 
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    72  | 
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    #include <net/if.h>  | 
    
    
    73  | 
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    #include <netinet/in.h>  | 
    
    
    74  | 
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    #include <netinet6/ip6_mroute.h>  | 
    
    
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    76  | 
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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"  | 
    
    
    82  | 
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    83  | 
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    #define	WID_ORG	(lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */  | 
    
    
    84  | 
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    #define	WID_GRP	(lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */  | 
    
    
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    86  | 
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    void  | 
    
    
    87  | 
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    mroute6pr(void)  | 
    
    
    88  | 
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    { | 
    
    
    89  | 
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    	char *buf = NULL;  | 
    
    
    90  | 
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    	char fmtbuf[FMT_SCALED_STRSIZE];  | 
    
    
    91  | 
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    	struct mf6cinfo *mfc;  | 
    
    
    92  | 
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    	struct mif6info *mif;  | 
    
    
    93  | 
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    	size_t needed, mifi, nummifs, mfci, nummfcs;  | 
    
    
    94  | 
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    	int banner_printed, saved_nflag;  | 
    
    
    95  | 
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    	mifi_t maxmif = 0;  | 
    
    
    96  | 
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    	u_int mrtproto;  | 
    
    
    97  | 
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    	int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; | 
    
    
    98  | 
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    	size_t len = sizeof(int);  | 
    
    
    99  | 
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    100  | 
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    	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),  | 
    
    
    101  | 
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    	    &mrtproto, &len, NULL, 0) == -1) { | 
    
    
    102  | 
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    		if (errno != ENOPROTOOPT)  | 
    
    
    103  | 
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    			warn("mroute"); | 
    
    
    104  | 
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    		return;  | 
    
    
    105  | 
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    	}  | 
    
    
    106  | 
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    	switch (mrtproto) { | 
    
    
    107  | 
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    	case 0:  | 
    
    
    108  | 
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    		break;  | 
    
    
    109  | 
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    	default:  | 
    
    
    110  | 
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    		printf("IPv6 multicast routing protocol %u, unknown\n", | 
    
    
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    		    mrtproto);  | 
    
    
    112  | 
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    		return;  | 
    
    
    113  | 
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    	}  | 
    
    
    114  | 
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    115  | 
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    	saved_nflag = nflag;  | 
    
    
    116  | 
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    	nflag = 1;  | 
    
    
    117  | 
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    118  | 
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    	mib[3] = IPV6CTL_MRTMIF;  | 
    
    
    119  | 
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    	needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);  | 
    
    
    120  | 
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    	nummifs = needed / sizeof(*mif);  | 
    
    
    121  | 
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    	mif = (struct mif6info *)buf;  | 
    
    
    122  | 
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    	if (nummifs)  | 
    
    
    123  | 
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    		maxmif = mif[nummifs - 1].m6_mifi;  | 
    
    
    124  | 
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    125  | 
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    	banner_printed = 0;  | 
    
    
    126  | 
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    	for (mifi = 0; mifi < nummifs; ++mifi, ++mif) { | 
    
    
    127  | 
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    		char ifname[IFNAMSIZ];  | 
    
    
    128  | 
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    129  | 
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    		if (mif->m6_ifindex == 0)  | 
    
    
    130  | 
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    			continue;  | 
    
    
    131  | 
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    132  | 
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    		if (!banner_printed) { | 
    
    
    133  | 
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    			printf("\nIPv6 Multicast Interface Table\n" | 
    
    
    134  | 
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    			    " Mif   Rate   PhyIF   "  | 
    
    
    135  | 
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    			    "Pkts-In   Pkts-Out\n");  | 
    
    
    136  | 
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    			banner_printed = 1;  | 
    
    
    137  | 
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    		}  | 
    
    
    138  | 
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    139  | 
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    		printf("  %2u   %4d", | 
    
    
    140  | 
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    		    mif->m6_mifi, mif->m6_rate_limit);  | 
    
    
    141  | 
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    		printf("   %5s", (mif->m6_flags & MIFF_REGISTER) ? | 
    
    
    142  | 
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    		    "reg0" : if_indextoname(mif->m6_ifindex, ifname));  | 
    
    
    143  | 
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    144  | 
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    		printf(" %9llu  %9llu\n", mif->m6_pkt_in, mif->m6_pkt_out); | 
    
    
    145  | 
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    	}  | 
    
    
    146  | 
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    	if (!banner_printed)  | 
    
    
    147  | 
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    		printf("IPv6 Multicast Interface Table is empty\n"); | 
    
    
    148  | 
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    149  | 
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    	mib[3] = IPV6CTL_MRTMFC;  | 
    
    
    150  | 
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    	needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);  | 
    
    
    151  | 
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    	nummfcs = needed / sizeof(*mfc);  | 
    
    
    152  | 
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    	mfc = (struct mf6cinfo *)buf;  | 
    
    
    153  | 
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    154  | 
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    	banner_printed = 0;  | 
    
    
    155  | 
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    	for (mfci = 0; mfci < nummfcs; ++mfci, ++mfc) { | 
    
    
    156  | 
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    		if (!banner_printed) { | 
    
    
    157  | 
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    			printf("\nIPv6 Multicast Forwarding Cache\n"); | 
    
    
    158  | 
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    			printf(" %-*.*s %-*.*s %s", | 
    
    
    159  | 
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    			    WID_ORG, WID_ORG, "Origin",  | 
    
    
    160  | 
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    			    WID_GRP, WID_GRP, "Group",  | 
    
    
    161  | 
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    			    "  Packets Waits In-Mif  Out-Mifs\n");  | 
    
    
    162  | 
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    			banner_printed = 1;  | 
    
    
    163  | 
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    		}  | 
    
    
    164  | 
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    165  | 
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    		printf(" %-*.*s", WID_ORG, WID_ORG, | 
    
    
    166  | 
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    		    routename6(&mfc->mf6c_origin));  | 
    
    
    167  | 
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    		printf(" %-*.*s", WID_GRP, WID_GRP, | 
    
    
    168  | 
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    		    routename6(&mfc->mf6c_mcastgrp));  | 
    
    
    169  | 
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    		fmt_scaled(mfc->mf6c_pkt_cnt, fmtbuf);  | 
    
    
    170  | 
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    		printf(" %9s", fmtbuf); | 
    
    
    171  | 
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    172  | 
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    		printf("   %3llu", mfc->mf6c_stall_cnt); | 
    
    
    173  | 
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    174  | 
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    		if (mfc->mf6c_parent == MF6C_INCOMPLETE_PARENT)  | 
    
    
    175  | 
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    			printf("  ---   "); | 
    
    
    176  | 
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    		else  | 
    
    
    177  | 
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    			printf("  %3d   ", mfc->mf6c_parent); | 
    
    
    178  | 
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    		for (mifi = 0; mifi <= MAXMIFS; mifi++) { | 
    
    
    179  | 
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    			if (IF_ISSET(mifi, &mfc->mf6c_ifset))  | 
    
    
    180  | 
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    				printf(" %zu", mifi); | 
    
    
    181  | 
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    		}  | 
    
    
    182  | 
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    		printf("\n"); | 
    
    
    183  | 
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    	}  | 
    
    
    184  | 
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    	if (!banner_printed)  | 
    
    
    185  | 
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    		printf("IPv6 Multicast Routing Table is empty"); | 
    
    
    186  | 
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    187  | 
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    	printf("\n"); | 
    
    
    188  | 
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    	nflag = saved_nflag;  | 
    
    
    189  | 
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    190  | 
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    	free(buf);  | 
    
    
    191  | 
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    }  | 
    
    
    192  | 
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    193  | 
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    void  | 
    
    
    194  | 
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    mrt6_stats(void)  | 
    
    
    195  | 
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    { | 
    
    
    196  | 
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    	struct mrt6stat mrt6stat;  | 
    
    
    197  | 
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    	u_int mrt6proto;  | 
    
    
    198  | 
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    	int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; | 
    
    
    199  | 
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    	int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS }; | 
    
    
    200  | 
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    	size_t len = sizeof(int);  | 
    
    
    201  | 
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    202  | 
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    	if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),  | 
    
    
    203  | 
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    	    &mrt6proto, &len, NULL, 0) == -1) { | 
    
    
    204  | 
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    		if (errno != ENOPROTOOPT)  | 
    
    
    205  | 
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    			warn("mroute"); | 
    
    
    206  | 
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    		return;  | 
    
    
    207  | 
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    	}  | 
    
    
    208  | 
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    	switch (mrt6proto) { | 
    
    
    209  | 
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    	case 0:  | 
    
    
    210  | 
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    		printf("no IPv6 multicast routing compiled into this system\n"); | 
    
    
    211  | 
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    		return;  | 
    
    
    212  | 
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    	default:  | 
    
    
    213  | 
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    		printf("IPv6 multicast routing protocol %u, unknown\n", | 
    
    
    214  | 
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    		    mrt6proto);  | 
    
    
    215  | 
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    		return;  | 
    
    
    216  | 
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    	}  | 
    
    
    217  | 
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    218  | 
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    	len = sizeof(mrt6stat);  | 
    
    
    219  | 
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    	if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]),  | 
    
    
    220  | 
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    	    &mrt6stat, &len, NULL, 0) == -1) { | 
    
    
    221  | 
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    		if (errno != ENOPROTOOPT)  | 
    
    
    222  | 
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    			warn("mroute"); | 
    
    
    223  | 
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    		return;  | 
    
    
    224  | 
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    	}  | 
    
    
    225  | 
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    226  | 
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    	printf("multicast forwarding:\n"); | 
    
    
    227  | 
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    	printf("\t%llu multicast forwarding cache lookup%s\n", | 
    
    
    228  | 
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    	    mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups));  | 
    
    
    229  | 
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    	printf("\t%llu multicast forwarding cache miss%s\n", | 
    
    
    230  | 
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    	    mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses));  | 
    
    
    231  | 
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    	printf("\t%llu upcall%s to mrouted\n", | 
    
    
    232  | 
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    	    mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls));  | 
    
    
    233  | 
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    	printf("\t%llu upcall queue overflow%s\n", | 
    
    
    234  | 
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    	    mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw));  | 
    
    
    235  | 
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    	printf("\t%llu upcall%s dropped due to full socket buffer\n", | 
    
    
    236  | 
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    	    mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull));  | 
    
    
    237  | 
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    	printf("\t%llu cache cleanup%s\n", | 
    
    
    238  | 
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    	    mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups));  | 
    
    
    239  | 
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    	printf("\t%llu datagram%s with no route for origin\n", | 
    
    
    240  | 
     | 
     | 
    	    mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route));  | 
    
    
    241  | 
     | 
     | 
    	printf("\t%llu datagram%s arrived with bad tunneling\n", | 
    
    
    242  | 
     | 
     | 
    	    mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel));  | 
    
    
    243  | 
     | 
     | 
    	printf("\t%llu datagram%s could not be tunneled\n", | 
    
    
    244  | 
     | 
     | 
    	    mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel));  | 
    
    
    245  | 
     | 
     | 
    	printf("\t%llu datagram%s arrived on wrong interface\n", | 
    
    
    246  | 
     | 
     | 
    	    mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if));  | 
    
    
    247  | 
     | 
     | 
    	printf("\t%llu datagram%s selectively dropped\n", | 
    
    
    248  | 
     | 
     | 
    	    mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel));  | 
    
    
    249  | 
     | 
     | 
    	printf("\t%llu datagram%s dropped due to queue overflow\n", | 
    
    
    250  | 
     | 
     | 
    	    mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow));  | 
    
    
    251  | 
     | 
     | 
    	printf("\t%llu datagram%s dropped for being too large\n", | 
    
    
    252  | 
     | 
     | 
    	    mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large));  | 
    
    
    253  | 
     | 
     | 
    }  |