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. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)mroute.c 8.2 (Berkeley) 4/28/95 38 * 39 * $FreeBSD: src/usr.bin/netstat/mroute.c,v 1.11.2.4 2001/09/17 14:53:17 ru Exp $ 40 * $DragonFly: src/usr.bin/netstat/mroute.c,v 1.4 2003/08/24 23:16:53 hsu Exp $ 41 */ 42 43 /* 44 * Print multicast routing structures and statistics. 45 * 46 * MROUTING 1.0 47 */ 48 49 #include <sys/param.h> 50 #include <sys/queue.h> 51 #include <sys/socket.h> 52 #include <sys/socketvar.h> 53 #include <sys/protosw.h> 54 #include <sys/mbuf.h> 55 #include <sys/time.h> 56 57 #include <net/if.h> 58 #include <netinet/in.h> 59 #include <netinet/igmp.h> 60 #include <net/route.h> 61 #include <net/ip_mroute/ip_mroute.h> 62 63 #include <stdio.h> 64 #include <stdlib.h> 65 #include "netstat.h" 66 67 static void print_bw_meter(struct bw_meter *bw_meter, int *banner_printed); 68 69 void 70 mroutepr(u_long mfcaddr, u_long vifaddr) 71 { 72 struct mfc *mfctable[MFCTBLSIZ]; 73 struct vif viftable[MAXVIFS]; 74 struct mfc mfc, *m; 75 register struct vif *v; 76 register vifi_t vifi; 77 register int i; 78 register int banner_printed; 79 register int saved_numeric_addr; 80 vifi_t maxvif = 0; 81 82 if (mfcaddr == 0 || vifaddr == 0) { 83 printf("No IPv4 multicast routing compiled into this system.\n"); 84 return; 85 } 86 87 saved_numeric_addr = numeric_addr; 88 numeric_addr = 1; 89 90 kread(vifaddr, (char *)&viftable, sizeof(viftable)); 91 banner_printed = 0; 92 for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) { 93 if (v->v_lcl_addr.s_addr == 0) 94 continue; 95 96 maxvif = vifi; 97 if (!banner_printed) { 98 printf("\nVirtual Interface Table\n" 99 " Vif Thresh Rate Local-Address " 100 "Remote-Address Pkts-In Pkts-Out\n"); 101 banner_printed = 1; 102 } 103 104 printf(" %2u %6u %4d %-15.15s", 105 /* opposite math of add_vif() */ 106 vifi, v->v_threshold, v->v_rate_limit * 1000 / 1024, 107 routename(v->v_lcl_addr.s_addr)); 108 printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ? 109 routename(v->v_rmt_addr.s_addr) : ""); 110 111 printf(" %9lu %9lu\n", v->v_pkt_in, v->v_pkt_out); 112 } 113 if (!banner_printed) 114 printf("\nVirtual Interface Table is empty\n"); 115 116 kread(mfcaddr, (char *)&mfctable, sizeof(mfctable)); 117 banner_printed = 0; 118 for (i = 0; i < MFCTBLSIZ; ++i) { 119 m = mfctable[i]; 120 while(m) { 121 kread((u_long)m, (char *)&mfc, sizeof mfc); 122 123 if (!banner_printed) { 124 printf("\nIPv4 Multicast Forwarding Cache\n" 125 " Origin Group " 126 " Packets In-Vif Out-Vifs:Ttls\n"); 127 banner_printed = 1; 128 } 129 130 printf(" %-15.15s", routename(mfc.mfc_origin.s_addr)); 131 printf(" %-15.15s", routename(mfc.mfc_mcastgrp.s_addr)); 132 printf(" %9lu", mfc.mfc_pkt_cnt); 133 printf(" %3d ", mfc.mfc_parent); 134 for (vifi = 0; vifi <= maxvif; vifi++) { 135 if (mfc.mfc_ttls[vifi] > 0) 136 printf(" %u:%u", vifi, 137 mfc.mfc_ttls[vifi]); 138 } 139 printf("\n"); 140 141 /* Print the bw meter information */ 142 { 143 struct bw_meter bw_meter, *bwm; 144 int banner_printed2 = 0; 145 146 bwm = mfc.mfc_bw_meter; 147 while (bwm) { 148 kread((u_long)bwm, (char *)&bw_meter, 149 sizeof bw_meter); 150 print_bw_meter(&bw_meter, 151 &banner_printed2); 152 bwm = bw_meter.bm_mfc_next; 153 } 154 #if 0 /* Don't ever print it? */ 155 if (! banner_printed2) 156 printf("\n No Bandwidth Meters\n"); 157 #endif 158 } 159 160 m = mfc.mfc_next; 161 } 162 } 163 if (!banner_printed) 164 printf("\nMulticast Routing Table is empty\n"); 165 166 printf("\n"); 167 numeric_addr = saved_numeric_addr; 168 } 169 170 static void 171 print_bw_meter(struct bw_meter *bw_meter, int *banner_printed) 172 { 173 char s0[256], s1[256], s2[256], s3[256]; 174 struct timeval now, end, delta; 175 176 gettimeofday(&now, NULL); 177 178 if (! *banner_printed) { 179 printf(" Bandwidth Meters\n"); 180 printf(" %-30s", "Measured(Start|Packets|Bytes)"); 181 printf(" %s", "Type"); 182 printf(" %-30s", "Thresh(Interval|Packets|Bytes)"); 183 printf(" Remain"); 184 printf("\n"); 185 *banner_printed = 1; 186 } 187 188 /* The measured values */ 189 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) 190 sprintf(s1, "%llu", bw_meter->bm_measured.b_packets); 191 else 192 sprintf(s1, "?"); 193 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) 194 sprintf(s2, "%llu", bw_meter->bm_measured.b_bytes); 195 else 196 sprintf(s2, "?"); 197 sprintf(s0, "%lu.%lu|%s|%s", 198 bw_meter->bm_start_time.tv_sec, 199 bw_meter->bm_start_time.tv_usec, 200 s1, s2); 201 printf(" %-30s", s0); 202 203 /* The type of entry */ 204 sprintf(s0, "%s", "?"); 205 if (bw_meter->bm_flags & BW_METER_GEQ) 206 sprintf(s0, "%s", ">="); 207 else if (bw_meter->bm_flags & BW_METER_LEQ) 208 sprintf(s0, "%s", "<="); 209 printf(" %-3s", s0); 210 211 /* The threshold values */ 212 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS) 213 sprintf(s1, "%llu", bw_meter->bm_threshold.b_packets); 214 else 215 sprintf(s1, "?"); 216 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES) 217 sprintf(s2, "%llu", bw_meter->bm_threshold.b_bytes); 218 else 219 sprintf(s2, "?"); 220 sprintf(s0, "%lu.%lu|%s|%s", 221 bw_meter->bm_threshold.b_time.tv_sec, 222 bw_meter->bm_threshold.b_time.tv_usec, 223 s1, s2); 224 printf(" %-30s", s0); 225 226 /* Remaining time */ 227 timeradd(&bw_meter->bm_start_time, 228 &bw_meter->bm_threshold.b_time, &end); 229 if (timercmp(&now, &end, <=)) { 230 timersub(&end, &now, &delta); 231 sprintf(s3, "%lu.%lu", delta.tv_sec, delta.tv_usec); 232 } else { 233 /* Negative time */ 234 timersub(&now, &end, &delta); 235 sprintf(s3, "-%lu.%lu", delta.tv_sec, delta.tv_usec); 236 } 237 printf(" %s", s3); 238 239 printf("\n"); 240 } 241 242 void 243 mrt_stats(u_long mstaddr) 244 { 245 struct mrtstat mrtstat; 246 247 if (mstaddr == 0) { 248 printf("No IPv4 multicast routing compiled into this system.\n"); 249 return; 250 } 251 252 kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat)); 253 printf("IPv4 multicast forwarding:\n"); 254 255 #define p(f, m) if (mrtstat.f || sflag <= 1) \ 256 printf(m, mrtstat.f, plural(mrtstat.f)) 257 #define p2(f, m) if (mrtstat.f || sflag <= 1) \ 258 printf(m, mrtstat.f, plurales(mrtstat.f)) 259 260 p(mrts_mfc_lookups, "\t%lu multicast forwarding cache lookup%s\n"); 261 p2(mrts_mfc_misses, "\t%lu multicast forwarding cache miss%s\n"); 262 p(mrts_upcalls, "\t%lu upcall%s to mrouted\n"); 263 p(mrts_upq_ovflw, "\t%lu upcall queue overflow%s\n"); 264 p(mrts_upq_sockfull, 265 "\t%lu upcall%s dropped due to full socket buffer\n"); 266 p(mrts_cache_cleanups, "\t%lu cache cleanup%s\n"); 267 p(mrts_no_route, "\t%lu datagram%s with no route for origin\n"); 268 p(mrts_bad_tunnel, "\t%lu datagram%s arrived with bad tunneling\n"); 269 p(mrts_cant_tunnel, "\t%lu datagram%s could not be tunneled\n"); 270 p(mrts_wrong_if, "\t%lu datagram%s arrived on wrong interface\n"); 271 p(mrts_drop_sel, "\t%lu datagram%s selectively dropped\n"); 272 p(mrts_q_overflow, "\t%lu datagram%s dropped due to queue overflow\n"); 273 p(mrts_pkt2large, "\t%lu datagram%s dropped for being too large\n"); 274 275 #undef p2 276 #undef p 277 } 278