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 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)mroute.c 8.2 (Berkeley) 4/28/95 34 * 35 * $FreeBSD: src/usr.bin/netstat/mroute.c,v 1.11.2.4 2001/09/17 14:53:17 ru Exp $ 36 * $DragonFly: src/usr.bin/netstat/mroute.c,v 1.5 2005/08/04 17:31:23 drhodus Exp $ 37 */ 38 39 /* 40 * Print multicast routing structures and statistics. 41 * 42 * MROUTING 1.0 43 */ 44 45 #include <sys/param.h> 46 #include <sys/queue.h> 47 #include <sys/socket.h> 48 #include <sys/socketvar.h> 49 #include <sys/protosw.h> 50 #include <sys/mbuf.h> 51 #include <sys/time.h> 52 53 #include <net/if.h> 54 #include <netinet/in.h> 55 #include <netinet/igmp.h> 56 #include <net/route.h> 57 #include <net/ip_mroute/ip_mroute.h> 58 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include "netstat.h" 62 63 static void print_bw_meter(struct bw_meter *bw_meter, int *banner_printed); 64 65 void 66 mroutepr(u_long mfcaddr, u_long vifaddr) 67 { 68 struct mfc *mfctable[MFCTBLSIZ]; 69 struct vif viftable[MAXVIFS]; 70 struct mfc mfc, *m; 71 struct vif *v; 72 vifi_t vifi; 73 int i; 74 int banner_printed; 75 int saved_numeric_addr; 76 vifi_t maxvif = 0; 77 78 if (mfcaddr == 0 || vifaddr == 0) { 79 printf("No IPv4 multicast routing compiled into this system.\n"); 80 return; 81 } 82 83 saved_numeric_addr = numeric_addr; 84 numeric_addr = 1; 85 86 kread(vifaddr, (char *)&viftable, sizeof(viftable)); 87 banner_printed = 0; 88 for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) { 89 if (v->v_lcl_addr.s_addr == 0) 90 continue; 91 92 maxvif = vifi; 93 if (!banner_printed) { 94 printf("\nVirtual Interface Table\n" 95 " Vif Thresh Rate Local-Address " 96 "Remote-Address Pkts-In Pkts-Out\n"); 97 banner_printed = 1; 98 } 99 100 printf(" %2u %6u %4d %-15.15s", 101 /* opposite math of add_vif() */ 102 vifi, v->v_threshold, v->v_rate_limit * 1000 / 1024, 103 routename(v->v_lcl_addr.s_addr)); 104 printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ? 105 routename(v->v_rmt_addr.s_addr) : ""); 106 107 printf(" %9lu %9lu\n", v->v_pkt_in, v->v_pkt_out); 108 } 109 if (!banner_printed) 110 printf("\nVirtual Interface Table is empty\n"); 111 112 kread(mfcaddr, (char *)&mfctable, sizeof(mfctable)); 113 banner_printed = 0; 114 for (i = 0; i < MFCTBLSIZ; ++i) { 115 m = mfctable[i]; 116 while(m) { 117 kread((u_long)m, (char *)&mfc, sizeof mfc); 118 119 if (!banner_printed) { 120 printf("\nIPv4 Multicast Forwarding Cache\n" 121 " Origin Group " 122 " Packets In-Vif Out-Vifs:Ttls\n"); 123 banner_printed = 1; 124 } 125 126 printf(" %-15.15s", routename(mfc.mfc_origin.s_addr)); 127 printf(" %-15.15s", routename(mfc.mfc_mcastgrp.s_addr)); 128 printf(" %9lu", mfc.mfc_pkt_cnt); 129 printf(" %3d ", mfc.mfc_parent); 130 for (vifi = 0; vifi <= maxvif; vifi++) { 131 if (mfc.mfc_ttls[vifi] > 0) 132 printf(" %u:%u", vifi, 133 mfc.mfc_ttls[vifi]); 134 } 135 printf("\n"); 136 137 /* Print the bw meter information */ 138 { 139 struct bw_meter bw_meter, *bwm; 140 int banner_printed2 = 0; 141 142 bwm = mfc.mfc_bw_meter; 143 while (bwm) { 144 kread((u_long)bwm, (char *)&bw_meter, 145 sizeof bw_meter); 146 print_bw_meter(&bw_meter, 147 &banner_printed2); 148 bwm = bw_meter.bm_mfc_next; 149 } 150 #if 0 /* Don't ever print it? */ 151 if (! banner_printed2) 152 printf("\n No Bandwidth Meters\n"); 153 #endif 154 } 155 156 m = mfc.mfc_next; 157 } 158 } 159 if (!banner_printed) 160 printf("\nMulticast Routing Table is empty\n"); 161 162 printf("\n"); 163 numeric_addr = saved_numeric_addr; 164 } 165 166 static void 167 print_bw_meter(struct bw_meter *bw_meter, int *banner_printed) 168 { 169 char s0[256], s1[256], s2[256], s3[256]; 170 struct timeval now, end, delta; 171 172 gettimeofday(&now, NULL); 173 174 if (! *banner_printed) { 175 printf(" Bandwidth Meters\n"); 176 printf(" %-30s", "Measured(Start|Packets|Bytes)"); 177 printf(" %s", "Type"); 178 printf(" %-30s", "Thresh(Interval|Packets|Bytes)"); 179 printf(" Remain"); 180 printf("\n"); 181 *banner_printed = 1; 182 } 183 184 /* The measured values */ 185 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) 186 sprintf(s1, "%ju", (uintmax_t)bw_meter->bm_measured.b_packets); 187 else 188 sprintf(s1, "?"); 189 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) 190 sprintf(s2, "%ju", (uintmax_t)bw_meter->bm_measured.b_bytes); 191 else 192 sprintf(s2, "?"); 193 sprintf(s0, "%lu.%lu|%s|%s", 194 bw_meter->bm_start_time.tv_sec, 195 bw_meter->bm_start_time.tv_usec, 196 s1, s2); 197 printf(" %-30s", s0); 198 199 /* The type of entry */ 200 sprintf(s0, "%s", "?"); 201 if (bw_meter->bm_flags & BW_METER_GEQ) 202 sprintf(s0, "%s", ">="); 203 else if (bw_meter->bm_flags & BW_METER_LEQ) 204 sprintf(s0, "%s", "<="); 205 printf(" %-3s", s0); 206 207 /* The threshold values */ 208 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) 209 sprintf(s1, "%ju", (uintmax_t)bw_meter->bm_threshold.b_packets); 210 else 211 sprintf(s1, "?"); 212 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) 213 sprintf(s2, "%ju", (uintmax_t)bw_meter->bm_threshold.b_bytes); 214 else 215 sprintf(s2, "?"); 216 sprintf(s0, "%lu.%lu|%s|%s", 217 bw_meter->bm_threshold.b_time.tv_sec, 218 bw_meter->bm_threshold.b_time.tv_usec, 219 s1, s2); 220 printf(" %-30s", s0); 221 222 /* Remaining time */ 223 timeradd(&bw_meter->bm_start_time, 224 &bw_meter->bm_threshold.b_time, &end); 225 if (timercmp(&now, &end, <=)) { 226 timersub(&end, &now, &delta); 227 sprintf(s3, "%lu.%lu", delta.tv_sec, delta.tv_usec); 228 } else { 229 /* Negative time */ 230 timersub(&now, &end, &delta); 231 sprintf(s3, "-%lu.%lu", delta.tv_sec, delta.tv_usec); 232 } 233 printf(" %s", s3); 234 235 printf("\n"); 236 } 237 238 void 239 mrt_stats(u_long mstaddr) 240 { 241 struct mrtstat mrtstat; 242 243 if (mstaddr == 0) { 244 printf("No IPv4 multicast routing compiled into this system.\n"); 245 return; 246 } 247 248 kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat)); 249 printf("IPv4 multicast forwarding:\n"); 250 251 #define p(f, m) if (mrtstat.f || sflag <= 1) \ 252 printf(m, mrtstat.f, plural(mrtstat.f)) 253 #define p2(f, m) if (mrtstat.f || sflag <= 1) \ 254 printf(m, mrtstat.f, plurales(mrtstat.f)) 255 256 p(mrts_mfc_lookups, "\t%lu multicast forwarding cache lookup%s\n"); 257 p2(mrts_mfc_misses, "\t%lu multicast forwarding cache miss%s\n"); 258 p(mrts_upcalls, "\t%lu upcall%s to mrouted\n"); 259 p(mrts_upq_ovflw, "\t%lu upcall queue overflow%s\n"); 260 p(mrts_upq_sockfull, 261 "\t%lu upcall%s dropped due to full socket buffer\n"); 262 p(mrts_cache_cleanups, "\t%lu cache cleanup%s\n"); 263 p(mrts_no_route, "\t%lu datagram%s with no route for origin\n"); 264 p(mrts_bad_tunnel, "\t%lu datagram%s arrived with bad tunneling\n"); 265 p(mrts_cant_tunnel, "\t%lu datagram%s could not be tunneled\n"); 266 p(mrts_wrong_if, "\t%lu datagram%s arrived on wrong interface\n"); 267 p(mrts_drop_sel, "\t%lu datagram%s selectively dropped\n"); 268 p(mrts_q_overflow, "\t%lu datagram%s dropped due to queue overflow\n"); 269 p(mrts_pkt2large, "\t%lu datagram%s dropped for being too large\n"); 270 271 #undef p2 272 #undef p 273 } 274