1 /* 2 * Copyright (c) 1989 Stephen Deering 3 * Copyright (c) 1992, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Stephen Deering of Stanford University. 8 * 9 * %sccs.include.redist.c% 10 * 11 * @(#)mroute.c 8.2 (Berkeley) 04/28/95 12 */ 13 14 /* 15 * Print DVMRP multicast routing structures and statistics. 16 * 17 * MROUTING 1.0 18 */ 19 20 #include <sys/param.h> 21 #include <sys/socket.h> 22 #include <sys/socketvar.h> 23 #include <sys/protosw.h> 24 25 #include <netinet/in.h> 26 #include <netinet/igmp.h> 27 #define KERNEL 1 28 #include <netinet/ip_mroute.h> 29 #undef KERNEL 30 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include "netstat.h" 34 35 void 36 mroutepr(mrpaddr, mrtaddr, vifaddr) 37 u_long mrpaddr, mrtaddr, vifaddr; 38 { 39 u_int mrtproto; 40 struct mrt *mrttable[MRTHASHSIZ]; 41 struct vif viftable[MAXVIFS]; 42 register struct mrt *mrt; 43 struct mrt smrt; 44 register struct vif *v; 45 register vifi_t vifi; 46 register struct in_addr *grp; 47 register int i, n; 48 register int banner_printed; 49 register int saved_nflag; 50 51 if (mrpaddr == 0) { 52 printf("ip_mrtproto: symbol not in namelist\n"); 53 return; 54 } 55 56 kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto)); 57 switch (mrtproto) { 58 59 case 0: 60 printf("no multicast routing compiled into this system\n"); 61 return; 62 63 case IGMP_DVMRP: 64 break; 65 66 default: 67 printf("multicast routing protocol %u, unknown\n", mrtproto); 68 return; 69 } 70 71 if (mrtaddr == 0) { 72 printf("mrttable: symbol not in namelist\n"); 73 return; 74 } 75 if (vifaddr == 0) { 76 printf("viftable: symbol not in namelist\n"); 77 return; 78 } 79 80 saved_nflag = nflag; 81 nflag = 1; 82 83 kread(vifaddr, (char *)&viftable, sizeof(viftable)); 84 banner_printed = 0; 85 for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) { 86 if (v->v_lcl_addr.s_addr == 0) 87 continue; 88 89 if (!banner_printed) { 90 printf("\nVirtual Interface Table\n%s%s", 91 " Vif Threshold Local-Address ", 92 "Remote-Address Groups\n"); 93 banner_printed = 1; 94 } 95 96 printf(" %2u %3u %-15.15s", 97 vifi, v->v_threshold, routename(v->v_lcl_addr.s_addr)); 98 printf(" %-15.15s\n", (v->v_flags & VIFF_TUNNEL) ? 99 routename(v->v_rmt_addr.s_addr) : ""); 100 101 n = v->v_lcl_grps_n; 102 grp = (struct in_addr *)malloc(n * sizeof(*grp)); 103 if (grp == NULL) { 104 printf("v_lcl_grps_n: malloc failed\n"); 105 return; 106 } 107 kread((u_long)v->v_lcl_grps, (caddr_t)grp, n * sizeof(*grp)); 108 for (i = 0; i < n; ++i) 109 printf("%51s %-15.15s\n", 110 "", routename((grp++)->s_addr)); 111 free(grp); 112 } 113 if (!banner_printed) 114 printf("\nVirtual Interface Table is empty\n"); 115 116 kread(mrtaddr, (char *)&mrttable, sizeof(mrttable)); 117 banner_printed = 0; 118 for (i = 0; i < MRTHASHSIZ; ++i) { 119 for (mrt = mrttable[i]; mrt != NULL; mrt = mrt->mrt_next) { 120 if (!banner_printed) { 121 printf("\nMulticast Routing Table\n%s", 122 " Hash Origin-Subnet In-Vif Out-Vifs\n"); 123 banner_printed = 1; 124 } 125 126 kread((u_long)mrt, (char *)&smrt, sizeof(*mrt)); 127 mrt = &smrt; 128 printf(" %3u %-15.15s %2u ", 129 i, netname(mrt->mrt_origin.s_addr, 130 ntohl(mrt->mrt_originmask.s_addr)), 131 mrt->mrt_parent); 132 for (vifi = 0; vifi < MAXVIFS; ++vifi) 133 if (VIFM_ISSET(vifi, mrt->mrt_children)) 134 printf(" %u%c", 135 vifi, 136 VIFM_ISSET(vifi, mrt->mrt_leaves) ? 137 '*' : ' '); 138 printf("\n"); 139 } 140 } 141 if (!banner_printed) 142 printf("\nMulticast Routing Table is empty\n"); 143 144 printf("\n"); 145 nflag = saved_nflag; 146 } 147 148 149 void 150 mrt_stats(mrpaddr, mstaddr) 151 u_long mrpaddr, mstaddr; 152 { 153 u_int mrtproto; 154 struct mrtstat mrtstat; 155 156 if(mrpaddr == 0) { 157 printf("ip_mrtproto: symbol not in namelist\n"); 158 return; 159 } 160 161 kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto)); 162 switch (mrtproto) { 163 case 0: 164 printf("no multicast routing compiled into this system\n"); 165 return; 166 167 case IGMP_DVMRP: 168 break; 169 170 default: 171 printf("multicast routing protocol %u, unknown\n", mrtproto); 172 return; 173 } 174 175 if (mstaddr == 0) { 176 printf("mrtstat: symbol not in namelist\n"); 177 return; 178 } 179 180 kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat)); 181 printf("multicast routing:\n"); 182 printf(" %10u multicast route lookup%s\n", 183 mrtstat.mrts_mrt_lookups, plural(mrtstat.mrts_mrt_lookups)); 184 printf(" %10u multicast route cache miss%s\n", 185 mrtstat.mrts_mrt_misses, plurales(mrtstat.mrts_mrt_misses)); 186 printf(" %10u group address lookup%s\n", 187 mrtstat.mrts_grp_lookups, plural(mrtstat.mrts_grp_lookups)); 188 printf(" %10u group address cache miss%s\n", 189 mrtstat.mrts_grp_misses, plurales(mrtstat.mrts_grp_misses)); 190 printf(" %10u datagram%s with no route for origin\n", 191 mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route)); 192 printf(" %10u datagram%s with malformed tunnel options\n", 193 mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel)); 194 printf(" %10u datagram%s with no room for tunnel options\n", 195 mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel)); 196 printf(" %10u datagram%s arrived on the wrong interface\n", 197 mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if)); 198 } 199