| 1 | /* |
| 2 | * Print DVMRP multicast routing structures and statistics. |
| 3 | * |
| 4 | * MROUTING 1.0 |
| 5 | */ |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | #include <sys/param.h> |
| 9 | #include <sys/mbuf.h> |
| 10 | #include <netinet/in.h> |
| 11 | #include <netinet/igmp.h> |
| 12 | #define KERNEL 1 |
| 13 | #include <netinet/ip_mroute.h> |
| 14 | #undef KERNEL |
| 15 | |
| 16 | extern int kmem; |
| 17 | extern int nflag; |
| 18 | extern char *routename(); |
| 19 | extern char *netname(); |
| 20 | extern char *plural(); |
| 21 | |
| 22 | char *plurales(n) |
| 23 | int n; |
| 24 | { |
| 25 | return (n == 1? "" : "es"); |
| 26 | } |
| 27 | |
| 28 | mroutepr(mrpaddr, mrtaddr, vifaddr) |
| 29 | off_t mrpaddr, mrtaddr, vifaddr; |
| 30 | { |
| 31 | u_int mrtproto; |
| 32 | #if BSD >= 199006 |
| 33 | struct mrt *mrttable[MRTHASHSIZ]; |
| 34 | struct mrt *mp; |
| 35 | struct mrt mb; |
| 36 | struct mrt *mrt = &mb; |
| 37 | #else |
| 38 | struct mbuf *mrttable[MRTHASHSIZ]; |
| 39 | struct mbuf *mp; |
| 40 | struct mbuf mb; |
| 41 | struct mrt *mrt = mtod(&mb, struct mrt *); |
| 42 | #endif |
| 43 | struct vif viftable[MAXVIFS]; |
| 44 | register struct vif *v; |
| 45 | register vifi_t vifi; |
| 46 | struct in_addr *grp; |
| 47 | int i, n; |
| 48 | int banner_printed; |
| 49 | int saved_nflag; |
| 50 | |
| 51 | if(mrpaddr == 0) { |
| 52 | printf("ip_mrtproto: symbol not in namelist\n"); |
| 53 | return; |
| 54 | } |
| 55 | |
| 56 | kvm_read(mrpaddr, (char *)&mrtproto, sizeof(mrtproto)); |
| 57 | switch (mrtproto) { |
| 58 | case 0: |
| 59 | printf("no multicast routing compiled into this system\n"); |
| 60 | return; |
| 61 | |
| 62 | case IGMP_DVMRP: |
| 63 | break; |
| 64 | |
| 65 | default: |
| 66 | printf("multicast routing protocol %u, unknown\n", mrtproto); |
| 67 | return; |
| 68 | } |
| 69 | |
| 70 | if (mrtaddr == 0) { |
| 71 | printf("mrttable: symbol not in namelist\n"); |
| 72 | return; |
| 73 | } |
| 74 | if (vifaddr == 0) { |
| 75 | printf("viftable: symbol not in namelist\n"); |
| 76 | return; |
| 77 | } |
| 78 | |
| 79 | saved_nflag = nflag; |
| 80 | nflag = 1; |
| 81 | |
| 82 | kvm_read(vifaddr, (char *)viftable, sizeof(viftable)); |
| 83 | banner_printed = 0; |
| 84 | for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) { |
| 85 | struct in_addr v_lcl_grps[1024]; |
| 86 | |
| 87 | if (v->v_lcl_addr.s_addr == 0) 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)); |
| 98 | printf(" %-15.15s\n", |
| 99 | (v->v_flags & VIFF_TUNNEL) ? |
| 100 | routename(v->v_rmt_addr) : ""); |
| 101 | |
| 102 | n = v->v_lcl_grps_n; |
| 103 | if (n == 0) |
| 104 | continue; |
| 105 | if (n < 0 || n > 1024) |
| 106 | printf("[v_lcl_grps_n = %d!]\n", n); |
| 107 | |
| 108 | kvm_read(v->v_lcl_grps, (char *)v_lcl_grps, |
| 109 | n * sizeof(struct in_addr)); |
| 110 | for (i = 0; i < n; ++i) |
| 111 | printf("%51s %-15.15s\n", "", |
| 112 | routename(v_lcl_grps[i])); |
| 113 | } |
| 114 | if (!banner_printed) printf("\nVirtual Interface Table is empty\n"); |
| 115 | |
| 116 | kvm_read(mrtaddr, (char *)mrttable, sizeof(mrttable)); |
| 117 | banner_printed = 0; |
| 118 | for (i = 0; i < MRTHASHSIZ; ++i) { |
| 119 | for (mp = mrttable[i]; mp != NULL; |
| 120 | #if BSD >= 199006 |
| 121 | mp = mb.mrt_next |
| 122 | #else |
| 123 | mp = mb.m_next |
| 124 | #endif |
| 125 | ) { |
| 126 | |
| 127 | if (!banner_printed) { |
| 128 | printf("\nMulticast Routing Table\n%s", |
| 129 | " Hash Origin-Subnet In-Vif Out-Vifs\n"); |
| 130 | banner_printed = 1; |
| 131 | } |
| 132 | kvm_read(mp, (char *)&mb, sizeof(mb)); |
| 133 | |
| 134 | |
| 135 | printf(" %3u %-15.15s %2u ", |
| 136 | i, |
| 137 | netname(mrt->mrt_origin.s_addr, |
| 138 | ntohl(mrt->mrt_originmask.s_addr)), |
| 139 | mrt->mrt_parent); |
| 140 | for (vifi = 0; vifi < MAXVIFS; ++vifi) { |
| 141 | if (viftable[vifi].v_lcl_addr.s_addr) { |
| 142 | if (VIFM_ISSET(vifi, mrt->mrt_children)) { |
| 143 | printf(" %u%c", |
| 144 | vifi, |
| 145 | VIFM_ISSET(vifi, |
| 146 | mrt->mrt_leaves) ? |
| 147 | '*' : ' '); |
| 148 | } else |
| 149 | printf(" "); |
| 150 | } |
| 151 | } |
| 152 | printf("\n"); |
| 153 | } |
| 154 | } |
| 155 | if (!banner_printed) printf("\nMulticast Routing Table is empty\n"); |
| 156 | |
| 157 | printf("\n"); |
| 158 | nflag = saved_nflag; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | mrt_stats(mrpaddr, mstaddr) |
| 163 | off_t mrpaddr, mstaddr; |
| 164 | { |
| 165 | u_int mrtproto; |
| 166 | struct mrtstat mrtstat; |
| 167 | |
| 168 | if(mrpaddr == 0) { |
| 169 | printf("ip_mrtproto: symbol not in namelist\n"); |
| 170 | return; |
| 171 | } |
| 172 | |
| 173 | kvm_read(mrpaddr, (char *)&mrtproto, sizeof(mrtproto)); |
| 174 | switch (mrtproto) { |
| 175 | case 0: |
| 176 | printf("no multicast routing compiled into this system\n"); |
| 177 | return; |
| 178 | |
| 179 | case IGMP_DVMRP: |
| 180 | break; |
| 181 | |
| 182 | default: |
| 183 | printf("multicast routing protocol %u, unknown\n", mrtproto); |
| 184 | return; |
| 185 | } |
| 186 | |
| 187 | if (mstaddr == 0) { |
| 188 | printf("mrtstat: symbol not in namelist\n"); |
| 189 | return; |
| 190 | } |
| 191 | |
| 192 | kvm_read(mstaddr, (char *)&mrtstat, sizeof(mrtstat)); |
| 193 | printf("multicast routing:\n"); |
| 194 | printf(" %10u multicast route lookup%s\n", |
| 195 | mrtstat.mrts_mrt_lookups, plural(mrtstat.mrts_mrt_lookups)); |
| 196 | printf(" %10u multicast route cache miss%s\n", |
| 197 | mrtstat.mrts_mrt_misses, plurales(mrtstat.mrts_mrt_misses)); |
| 198 | printf(" %10u group address lookup%s\n", |
| 199 | mrtstat.mrts_grp_lookups, plural(mrtstat.mrts_grp_lookups)); |
| 200 | printf(" %10u group address cache miss%s\n", |
| 201 | mrtstat.mrts_grp_misses, plurales(mrtstat.mrts_grp_misses)); |
| 202 | printf(" %10u datagram%s with no route for origin\n", |
| 203 | mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route)); |
| 204 | printf(" %10u datagram%s with malformed tunnel options\n", |
| 205 | mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel)); |
| 206 | printf(" %10u datagram%s with no room for tunnel options\n", |
| 207 | mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel)); |
| 208 | printf(" %10u datagram%s arrived on wrong interface\n", |
| 209 | mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if)); |
| 210 | } |