1 /* $OpenBSD: mroute6.c,v 1.13 2014/06/23 03:46:17 guenther 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 #include <net/if_var.h> 76 77 #include <netinet/in.h> 78 79 #define _KERNEL 1 80 #include <netinet6/ip6_mroute.h> 81 #undef _KERNEL 82 83 #include <err.h> 84 #include <errno.h> 85 #include <stdio.h> 86 #include "netstat.h" 87 88 #define WID_ORG (lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */ 89 #define WID_GRP (lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */ 90 91 void 92 mroute6pr(u_long mfcaddr, u_long mifaddr) 93 { 94 int banner_printed, saved_nflag, waitings, i; 95 struct mf6c *mf6ctable[MF6CTBLSIZ], *mfcp; 96 struct mif6 mif6table[MAXMIFS], *mifp; 97 struct rtdetq rte, *rtep; 98 mifi_t maxmif = 0, mifi; 99 struct mf6c mfc; 100 u_int mrtproto; 101 int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; 102 size_t len = sizeof(int); 103 104 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), 105 &mrtproto, &len, NULL, 0) == -1) { 106 if (errno != ENOPROTOOPT) 107 warn("mroute"); 108 return; 109 } 110 switch (mrtproto) { 111 case 0: 112 printf("no IPv6 multicast routing compiled into this system\n"); 113 return; 114 case IPPROTO_PIM: 115 break; 116 default: 117 printf("IPv6 multicast routing protocol %u, unknown\n", 118 mrtproto); 119 return; 120 } 121 122 if (mfcaddr == 0) { 123 printf("mf6ctable: symbol not in namelist\n"); 124 return; 125 } 126 if (mifaddr == 0) { 127 printf("miftable: symbol not in namelist\n"); 128 return; 129 } 130 131 saved_nflag = nflag; 132 nflag = 1; 133 134 kread(mifaddr, &mif6table, sizeof(mif6table)); 135 banner_printed = 0; 136 for (mifi = 0, mifp = mif6table; mifi < MAXMIFS; ++mifi, ++mifp) { 137 struct ifnet ifnet; 138 char ifname[IFNAMSIZ]; 139 140 if (mifp->m6_ifp == NULL) 141 continue; 142 143 kread((u_long)mifp->m6_ifp, &ifnet, sizeof(ifnet)); 144 maxmif = mifi; 145 if (!banner_printed) { 146 printf("\nIPv6 Multicast Interface Table\n" 147 " Mif Rate PhyIF " 148 "Pkts-In Pkts-Out\n"); 149 banner_printed = 1; 150 } 151 152 printf(" %2u %4d", 153 mifi, mifp->m6_rate_limit); 154 printf(" %5s", (mifp->m6_flags & MIFF_REGISTER) ? 155 "reg0" : if_indextoname(ifnet.if_index, ifname)); 156 157 printf(" %9llu %9llu\n", mifp->m6_pkt_in, mifp->m6_pkt_out); 158 } 159 if (!banner_printed) 160 printf("IPv6 Multicast Interface Table is empty\n"); 161 162 kread(mfcaddr, &mf6ctable, sizeof(mf6ctable)); 163 banner_printed = 0; 164 for (i = 0; i < MF6CTBLSIZ; ++i) { 165 mfcp = mf6ctable[i]; 166 while (mfcp) { 167 kread((u_long)mfcp, &mfc, sizeof(mfc)); 168 if (!banner_printed) { 169 printf("\nIPv6 Multicast Forwarding Cache\n"); 170 printf(" %-*.*s %-*.*s %s", 171 WID_ORG, WID_ORG, "Origin", 172 WID_GRP, WID_GRP, "Group", 173 " Packets Waits In-Mif Out-Mifs\n"); 174 banner_printed = 1; 175 } 176 177 printf(" %-*.*s", WID_ORG, WID_ORG, 178 routename6(&mfc.mf6c_origin)); 179 printf(" %-*.*s", WID_GRP, WID_GRP, 180 routename6(&mfc.mf6c_mcastgrp)); 181 printf(" %9llu", mfc.mf6c_pkt_cnt); 182 183 for (waitings = 0, rtep = mfc.mf6c_stall; rtep; ) { 184 waitings++; 185 kread((u_long)rtep, &rte, sizeof(rte)); 186 rtep = rte.next; 187 } 188 printf(" %3d", waitings); 189 190 if (mfc.mf6c_parent == MF6C_INCOMPLETE_PARENT) 191 printf(" --- "); 192 else 193 printf(" %3d ", mfc.mf6c_parent); 194 for (mifi = 0; mifi <= MAXMIFS; mifi++) { 195 if (IF_ISSET(mifi, &mfc.mf6c_ifset)) 196 printf(" %u", mifi); 197 } 198 printf("\n"); 199 200 mfcp = mfc.mf6c_next; 201 } 202 } 203 if (!banner_printed) 204 printf("IPv6 Multicast Routing Table is empty"); 205 206 printf("\n"); 207 nflag = saved_nflag; 208 } 209 210 void 211 mrt6_stats(void) 212 { 213 struct mrt6stat mrt6stat; 214 u_int mrt6proto; 215 int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO }; 216 int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS }; 217 size_t len = sizeof(int); 218 219 if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), 220 &mrt6proto, &len, NULL, 0) == -1) { 221 if (errno != ENOPROTOOPT) 222 warn("mroute"); 223 return; 224 } 225 switch (mrt6proto) { 226 case 0: 227 printf("no IPv6 multicast routing compiled into this system\n"); 228 return; 229 case IPPROTO_PIM: 230 break; 231 default: 232 printf("IPv6 multicast routing protocol %u, unknown\n", 233 mrt6proto); 234 return; 235 } 236 237 len = sizeof(mrt6stat); 238 if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]), 239 &mrt6stat, &len, NULL, 0) == -1) { 240 if (errno != ENOPROTOOPT) 241 warn("mroute"); 242 return; 243 } 244 245 printf("multicast forwarding:\n"); 246 printf("\t%llu multicast forwarding cache lookup%s\n", 247 mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups)); 248 printf("\t%llu multicast forwarding cache miss%s\n", 249 mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses)); 250 printf("\t%llu upcall%s to mrouted\n", 251 mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls)); 252 printf("\t%llu upcall queue overflow%s\n", 253 mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw)); 254 printf("\t%llu upcall%s dropped due to full socket buffer\n", 255 mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull)); 256 printf("\t%llu cache cleanup%s\n", 257 mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups)); 258 printf("\t%llu datagram%s with no route for origin\n", 259 mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route)); 260 printf("\t%llu datagram%s arrived with bad tunneling\n", 261 mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel)); 262 printf("\t%llu datagram%s could not be tunneled\n", 263 mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel)); 264 printf("\t%llu datagram%s arrived on wrong interface\n", 265 mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if)); 266 printf("\t%llu datagram%s selectively dropped\n", 267 mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel)); 268 printf("\t%llu datagram%s dropped due to queue overflow\n", 269 mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow)); 270 printf("\t%llu datagram%s dropped for being too large\n", 271 mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large)); 272 } 273