1 /* $OpenBSD: mroute6.c,v 1.11 2009/02/07 15:06:04 chl 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) 1989 Stephen Deering 34 * Copyright (c) 1992, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Stephen Deering of Stanford University. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)mroute.c 8.2 (Berkeley) 4/28/95 65 */ 66 67 #include <sys/param.h> 68 #include <sys/queue.h> 69 #include <sys/socket.h> 70 #include <sys/socketvar.h> 71 #include <sys/protosw.h> 72 #include <sys/sysctl.h> 73 74 #include <net/if.h> 75 76 #include <netinet/in.h> 77 78 #define _KERNEL 1 79 #include <netinet6/ip6_mroute.h> 80 #undef _KERNEL 81 82 #include <err.h> 83 #include <errno.h> 84 #include <stdio.h> 85 #include "netstat.h" 86 87 #define WID_ORG (lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */ 88 #define WID_GRP (lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */ 89 90 void 91 mroute6pr(u_long mfcaddr, u_long mifaddr) 92 { 93 int banner_printed, saved_nflag, waitings, i; 94 struct mf6c *mf6ctable[MF6CTBLSIZ], *mfcp; 95 struct mif6 mif6table[MAXMIFS], *mifp; 96 struct rtdetq rte, *rtep; 97 mifi_t maxmif = 0, mifi; 98 struct mf6c mfc; 99 u_int mrtproto; 100 int mib[] = { CTL_NET, AF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; 101 size_t len = sizeof(int); 102 103 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), 104 &mrtproto, &len, NULL, 0) == -1) { 105 if (errno != ENOPROTOOPT) 106 warn("mroute"); 107 return; 108 } 109 switch (mrtproto) { 110 case 0: 111 printf("no IPv6 multicast routing compiled into this system\n"); 112 return; 113 case IPPROTO_PIM: 114 break; 115 default: 116 printf("IPv6 multicast routing protocol %u, unknown\n", 117 mrtproto); 118 return; 119 } 120 121 if (mfcaddr == 0) { 122 printf("mf6ctable: symbol not in namelist\n"); 123 return; 124 } 125 if (mifaddr == 0) { 126 printf("miftable: symbol not in namelist\n"); 127 return; 128 } 129 130 saved_nflag = nflag; 131 nflag = 1; 132 133 kread(mifaddr, &mif6table, sizeof(mif6table)); 134 banner_printed = 0; 135 for (mifi = 0, mifp = mif6table; mifi < MAXMIFS; ++mifi, ++mifp) { 136 struct ifnet ifnet; 137 char ifname[IFNAMSIZ]; 138 139 if (mifp->m6_ifp == NULL) 140 continue; 141 142 kread((u_long)mifp->m6_ifp, &ifnet, sizeof(ifnet)); 143 maxmif = mifi; 144 if (!banner_printed) { 145 printf("\nIPv6 Multicast Interface Table\n" 146 " Mif Rate PhyIF " 147 "Pkts-In Pkts-Out\n"); 148 banner_printed = 1; 149 } 150 151 printf(" %2u %4d", 152 mifi, mifp->m6_rate_limit); 153 printf(" %5s", (mifp->m6_flags & MIFF_REGISTER) ? 154 "reg0" : if_indextoname(ifnet.if_index, ifname)); 155 156 printf(" %9llu %9llu\n", mifp->m6_pkt_in, mifp->m6_pkt_out); 157 } 158 if (!banner_printed) 159 printf("IPv6 Multicast Interface Table is empty\n"); 160 161 kread(mfcaddr, &mf6ctable, sizeof(mf6ctable)); 162 banner_printed = 0; 163 for (i = 0; i < MF6CTBLSIZ; ++i) { 164 mfcp = mf6ctable[i]; 165 while (mfcp) { 166 kread((u_long)mfcp, &mfc, sizeof(mfc)); 167 if (!banner_printed) { 168 printf("\nIPv6 Multicast Forwarding Cache\n"); 169 printf(" %-*.*s %-*.*s %s", 170 WID_ORG, WID_ORG, "Origin", 171 WID_GRP, WID_GRP, "Group", 172 " Packets Waits In-Mif Out-Mifs\n"); 173 banner_printed = 1; 174 } 175 176 printf(" %-*.*s", WID_ORG, WID_ORG, 177 routename6(&mfc.mf6c_origin)); 178 printf(" %-*.*s", WID_GRP, WID_GRP, 179 routename6(&mfc.mf6c_mcastgrp)); 180 printf(" %9llu", mfc.mf6c_pkt_cnt); 181 182 for (waitings = 0, rtep = mfc.mf6c_stall; rtep; ) { 183 waitings++; 184 kread((u_long)rtep, &rte, sizeof(rte)); 185 rtep = rte.next; 186 } 187 printf(" %3d", waitings); 188 189 if (mfc.mf6c_parent == MF6C_INCOMPLETE_PARENT) 190 printf(" --- "); 191 else 192 printf(" %3d ", mfc.mf6c_parent); 193 for (mifi = 0; mifi <= MAXMIFS; mifi++) { 194 if (IF_ISSET(mifi, &mfc.mf6c_ifset)) 195 printf(" %u", mifi); 196 } 197 printf("\n"); 198 199 mfcp = mfc.mf6c_next; 200 } 201 } 202 if (!banner_printed) 203 printf("IPv6 Multicast Routing Table is empty"); 204 205 printf("\n"); 206 nflag = saved_nflag; 207 } 208 209 void 210 mrt6_stats(void) 211 { 212 struct mrt6stat mrt6stat; 213 u_int mrt6proto; 214 int mib[] = { CTL_NET, AF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; 215 int mib2[] = { CTL_NET, AF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS }; 216 size_t len = sizeof(int); 217 218 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), 219 &mrt6proto, &len, NULL, 0) == -1) { 220 if (errno != ENOPROTOOPT) 221 warn("mroute"); 222 return; 223 } 224 switch (mrt6proto) { 225 case 0: 226 printf("no IPv6 multicast routing compiled into this system\n"); 227 return; 228 case IPPROTO_PIM: 229 break; 230 default: 231 printf("IPv6 multicast routing protocol %u, unknown\n", 232 mrt6proto); 233 return; 234 } 235 236 len = sizeof(mrt6stat); 237 if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]), 238 &mrt6stat, &len, NULL, 0) == -1) { 239 if (errno != ENOPROTOOPT) 240 warn("mroute"); 241 return; 242 } 243 244 printf("multicast forwarding:\n"); 245 printf("\t%llu multicast forwarding cache lookup%s\n", 246 mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups)); 247 printf("\t%llu multicast forwarding cache miss%s\n", 248 mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses)); 249 printf("\t%llu upcall%s to mrouted\n", 250 mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls)); 251 printf("\t%llu upcall queue overflow%s\n", 252 mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw)); 253 printf("\t%llu upcall%s dropped due to full socket buffer\n", 254 mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull)); 255 printf("\t%llu cache cleanup%s\n", 256 mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups)); 257 printf("\t%llu datagram%s with no route for origin\n", 258 mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route)); 259 printf("\t%llu datagram%s arrived with bad tunneling\n", 260 mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel)); 261 printf("\t%llu datagram%s could not be tunneled\n", 262 mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel)); 263 printf("\t%llu datagram%s arrived on wrong interface\n", 264 mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if)); 265 printf("\t%llu datagram%s selectively dropped\n", 266 mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel)); 267 printf("\t%llu datagram%s dropped due to queue overflow\n", 268 mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow)); 269 printf("\t%llu datagram%s dropped for being too large\n", 270 mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large)); 271 } 272