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mroute6.c revision 1.15
      1 /*	$NetBSD: mroute6.c,v 1.15 2014/11/06 21:30:09 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1998 WIDE Project.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the project nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1992, 1993
     34  *	The Regents of the University of California.  All rights reserved.
     35  *
     36  * This code is derived from software contributed to Berkeley by
     37  * Stephen Deering of Stanford University.
     38  *
     39  * Redistribution and use in source and binary forms, with or without
     40  * modification, are permitted provided that the following conditions
     41  * are met:
     42  * 1. Redistributions of source code must retain the above copyright
     43  *    notice, this list of conditions and the following disclaimer.
     44  * 2. Redistributions in binary form must reproduce the above copyright
     45  *    notice, this list of conditions and the following disclaimer in the
     46  *    documentation and/or other materials provided with the distribution.
     47  * 3. Neither the name of the University nor the names of its contributors
     48  *    may be used to endorse or promote products derived from this software
     49  *    without specific prior written permission.
     50  *
     51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     61  * SUCH DAMAGE.
     62  *
     63  *	@(#)mroute.c	8.2 (Berkeley) 4/28/95
     64  */
     65 
     66 /*
     67  * Copyright (c) 1989 Stephen Deering
     68  *
     69  * This code is derived from software contributed to Berkeley by
     70  * Stephen Deering of Stanford University.
     71  *
     72  * Redistribution and use in source and binary forms, with or without
     73  * modification, are permitted provided that the following conditions
     74  * are met:
     75  * 1. Redistributions of source code must retain the above copyright
     76  *    notice, this list of conditions and the following disclaimer.
     77  * 2. Redistributions in binary form must reproduce the above copyright
     78  *    notice, this list of conditions and the following disclaimer in the
     79  *    documentation and/or other materials provided with the distribution.
     80  * 3. All advertising materials mentioning features or use of this software
     81  *    must display the following acknowledgement:
     82  *	This product includes software developed by the University of
     83  *	California, Berkeley and its contributors.
     84  * 4. Neither the name of the University nor the names of its contributors
     85  *    may be used to endorse or promote products derived from this software
     86  *    without specific prior written permission.
     87  *
     88  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     89  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     90  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     91  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     92  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     93  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     94  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     95  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     96  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     97  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     98  * SUCH DAMAGE.
     99  *
    100  *	@(#)mroute.c	8.2 (Berkeley) 4/28/95
    101  */
    102 
    103 #include <sys/param.h>
    104 #include <sys/queue.h>
    105 #include <sys/socket.h>
    106 #include <sys/socketvar.h>
    107 #include <sys/protosw.h>
    108 
    109 #include <net/if.h>
    110 
    111 #include <netinet/in.h>
    112 
    113 #define _KERNEL 1
    114 #include <netinet6/ip6_mroute.h>
    115 #undef _KERNEL
    116 
    117 #include <stdio.h>
    118 #include <kvm.h>
    119 #include "netstat.h"
    120 #include "rtutil.h"
    121 
    122 #ifdef INET6
    123 
    124 #define	WID_ORG	(lflag ? 39 : (numeric_addr ? 29 : 18)) /* width of origin column */
    125 #define	WID_GRP	(lflag ? 18 : (numeric_addr ? 16 : 18)) /* width of group column */
    126 
    127 void
    128 mroute6pr(u_long mrpaddr, u_long mfcaddr, u_long mifaddr)
    129 {
    130 	u_int mrtproto;
    131 	struct mf6c *mf6ctable[MF6CTBLSIZ], *mfcp;
    132 	struct mif6 mif6table[MAXMIFS];
    133 	struct mf6c mfc;
    134 	struct rtdetq rte, *rtep;
    135 	register struct mif6 *mifp;
    136 	register mifi_t mifi;
    137 	register int i;
    138 	register int banner_printed;
    139 	register int saved_numeric_addr;
    140 	int waitings;
    141 
    142 	if (mrpaddr == 0) {
    143 		printf("mroute6pr: symbol not in namelist\n");
    144 		return;
    145 	}
    146 
    147 	kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
    148 	switch (mrtproto) {
    149 	case 0:
    150 		printf("no IPv6 multicast routing compiled into this system\n");
    151 		return;
    152 
    153 	case IPPROTO_PIM:
    154 		break;
    155 
    156 	default:
    157 		printf("IPv6 multicast routing protocol %u, unknown\n",
    158 		    mrtproto);
    159 		return;
    160 	}
    161 
    162 	if (mfcaddr == 0) {
    163 		printf("mf6ctable: symbol not in namelist\n");
    164 		return;
    165 	}
    166 	if (mifaddr == 0) {
    167 		printf("miftable: symbol not in namelist\n");
    168 		return;
    169 	}
    170 
    171 	saved_numeric_addr = numeric_addr;
    172 	numeric_addr = 1;
    173 
    174 	kread(mifaddr, (char *)&mif6table, sizeof(mif6table));
    175 	banner_printed = 0;
    176 	for (mifi = 0, mifp = mif6table; mifi < MAXMIFS; ++mifi, ++mifp) {
    177 		struct ifnet ifnet;
    178 		char ifname[IFNAMSIZ];
    179 
    180 		if (mifp->m6_ifp == NULL)
    181 			continue;
    182 
    183 		kread((u_long)mifp->m6_ifp, (char *)&ifnet, sizeof(ifnet));
    184 		if (!banner_printed) {
    185 			printf("\nIPv6 Multicast Interface Table\n"
    186 			    " Mif   Rate   PhyIF   Pkts-In   Pkts-Out\n");
    187 			banner_printed = 1;
    188 		}
    189 
    190 		printf("  %2u   %4d", mifi, mifp->m6_rate_limit);
    191 		printf("   %5s", (mifp->m6_flags & MIFF_REGISTER) ?
    192 		    "reg0" : if_indextoname(ifnet.if_index, ifname));
    193 
    194 		printf(" %9llu  %9llu\n", (unsigned long long)mifp->m6_pkt_in,
    195 		    (unsigned long long)mifp->m6_pkt_out);
    196 	}
    197 	if (!banner_printed)
    198 		printf("\nIPv6 Multicast Interface Table is empty\n");
    199 
    200 	kread(mfcaddr, (char *)&mf6ctable, sizeof(mf6ctable));
    201 	banner_printed = 0;
    202 	for (i = 0; i < MF6CTBLSIZ; ++i) {
    203 		mfcp = mf6ctable[i];
    204 		while(mfcp) {
    205 			kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
    206 			if (!banner_printed) {
    207 				printf ("\nIPv6 Multicast Forwarding Cache\n");
    208 				printf(" %-*.*s %-*.*s %s",
    209 				    WID_ORG, WID_ORG, "Origin",
    210 				    WID_GRP, WID_GRP, "Group",
    211 				    "  Packets Waits In-Mif  Out-Mifs\n");
    212 				banner_printed = 1;
    213 			}
    214 
    215 			printf(" %-*.*s", WID_ORG, WID_ORG,
    216 			    routename6(&mfc.mf6c_origin, nflag));
    217 			printf(" %-*.*s", WID_GRP, WID_GRP,
    218 			    routename6(&mfc.mf6c_mcastgrp, nflag));
    219 			printf(" %9llu", (unsigned long long)mfc.mf6c_pkt_cnt);
    220 
    221 			for (waitings = 0, rtep = mfc.mf6c_stall; rtep; ) {
    222 				waitings++;
    223 				kread((u_long)rtep, (char *)&rte, sizeof(rte));
    224 				rtep = rte.next;
    225 			}
    226 			printf("   %3d", waitings);
    227 
    228 			if (mfc.mf6c_parent == MF6C_INCOMPLETE_PARENT)
    229 				printf("  ---   ");
    230 			else
    231 				printf("  %3d   ", mfc.mf6c_parent);
    232 			for (mifi = 0; mifi <= MAXMIFS; mifi++) {
    233 				if (IF_ISSET(mifi, &mfc.mf6c_ifset))
    234 					printf(" %u", mifi);
    235 			}
    236 			printf("\n");
    237 
    238 			mfcp = mfc.mf6c_next;
    239 		}
    240 	}
    241 	if (!banner_printed)
    242 		printf("\nIPv6 Multicast Routing Table is empty\n");
    243 
    244 	printf("\n");
    245 	numeric_addr = saved_numeric_addr;
    246 }
    247 
    248 void
    249 mrt6_stats(u_long mrpaddr, u_long mstaddr)
    250 {
    251 #define	p(f, m) printf(m, (unsigned long long)mrtstat.f, plural(mrtstat.f))
    252 #define	pes(f, m) printf(m, (unsigned long long)mrtstat.f, plurales(mrtstat.f))
    253 	u_int mrtproto;
    254 	struct mrt6stat mrtstat;
    255 
    256 	if (mrpaddr == 0) {
    257 		printf("mrt6_stats: symbol not in namelist\n");
    258 		return;
    259 	}
    260 
    261 	kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
    262 	switch (mrtproto) {
    263 	case 0:
    264 		printf("no IPv6 multicast routing compiled into this system\n");
    265 		return;
    266 
    267 	case IPPROTO_PIM:
    268 		break;
    269 
    270 	default:
    271 		printf("IPv6 multicast routing protocol %u, unknown\n",
    272 			mrtproto);
    273 		return;
    274 	}
    275 
    276 	if (mstaddr == 0) {
    277 		printf("mrt6_stats: symbol not in namelist\n");
    278 		return;
    279 	}
    280 
    281 	kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
    282 	printf("multicast forwarding:\n");
    283 	p(mrt6s_mfc_lookups, " %10llu multicast forwarding cache lookup%s\n");
    284 	pes(mrt6s_mfc_misses, " %10llu multicast forwarding cache miss%s\n");
    285 	p(mrt6s_upcalls, " %10llu upcall%s to mrouted\n");
    286 	p(mrt6s_upq_ovflw, " %10llu upcall queue overflow%s\n");
    287 	p(mrt6s_upq_sockfull,
    288 	    " %10llu upcall%s dropped due to full socket buffer\n");
    289 	p(mrt6s_cache_cleanups, " %10llu cache cleanup%s\n");
    290 	p(mrt6s_no_route, " %10llu datagram%s with no route for origin\n");
    291 	p(mrt6s_bad_tunnel, " %10llu datagram%s arrived with bad tunneling\n");
    292 	p(mrt6s_cant_tunnel, " %10llu datagram%s could not be tunneled\n");
    293 	p(mrt6s_wrong_if, " %10llu datagram%s arrived on wrong interface\n");
    294 	p(mrt6s_drop_sel, " %10llu datagram%s selectively dropped\n");
    295 	p(mrt6s_q_overflow,
    296 	    " %10llu datagram%s dropped due to queue overflow\n");
    297 	p(mrt6s_pkt2large, " %10llu datagram%s dropped for being too large\n");
    298 #undef p
    299 #undef pes
    300 }
    301 #endif /*INET6*/
    302