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 */
37
38 /*
39 * Print multicast routing structures and statistics.
40 *
41 * MROUTING 1.0
42 */
43
44 #include <sys/param.h>
45 #include <sys/queue.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/protosw.h>
49 #include <sys/mbuf.h>
50 #include <sys/time.h>
51
52 #include <net/if.h>
53 #include <netinet/in.h>
54 #include <netinet/igmp.h>
55 #include <net/route.h>
56 #include <net/ip_mroute/ip_mroute.h>
57
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include "netstat.h"
61
62 static void print_bw_meter(struct bw_meter *bw_meter, int *banner_printed);
63
64 void
mroutepr(u_long mfcaddr,u_long vifaddr)65 mroutepr(u_long mfcaddr, u_long vifaddr)
66 {
67 struct mfc *mfctable[MFCTBLSIZ];
68 struct vif viftable[MAXVIFS];
69 struct mfc mfc, *m;
70 struct vif *v;
71 vifi_t vifi;
72 int i;
73 int banner_printed;
74 int saved_numeric_addr;
75 vifi_t maxvif = 0;
76
77 if (mfcaddr == 0 || vifaddr == 0) {
78 printf("No IPv4 multicast routing compiled into this system.\n");
79 return;
80 }
81
82 saved_numeric_addr = numeric_addr;
83 numeric_addr = 1;
84
85 kread(vifaddr, (char *)&viftable, sizeof(viftable));
86 banner_printed = 0;
87 for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
88 if (v->v_lcl_addr.s_addr == 0)
89 continue;
90
91 maxvif = vifi;
92 if (!banner_printed) {
93 printf("\nVirtual Interface Table\n"
94 " Vif Thresh Rate Local-Address "
95 "Remote-Address Pkts-In Pkts-Out\n");
96 banner_printed = 1;
97 }
98
99 printf(" %2u %6u %4d %-15.15s",
100 /* opposite math of add_vif() */
101 vifi, v->v_threshold, v->v_rate_limit * 1000 / 1024,
102 routename(v->v_lcl_addr.s_addr));
103 printf(" %-15.15s", (v->v_flags & VIFF_TUNNEL) ?
104 routename(v->v_rmt_addr.s_addr) : "");
105
106 printf(" %9lu %9lu\n", v->v_pkt_in, v->v_pkt_out);
107 }
108 if (!banner_printed)
109 printf("\nVirtual Interface Table is empty\n");
110
111 kread(mfcaddr, (char *)&mfctable, sizeof(mfctable));
112 banner_printed = 0;
113 for (i = 0; i < MFCTBLSIZ; ++i) {
114 m = mfctable[i];
115 while(m) {
116 kread((u_long)m, (char *)&mfc, sizeof mfc);
117
118 if (!banner_printed) {
119 printf("\nIPv4 Multicast Forwarding Cache\n"
120 " Origin Group "
121 " Packets In-Vif Out-Vifs:Ttls\n");
122 banner_printed = 1;
123 }
124
125 printf(" %-15.15s", routename(mfc.mfc_origin.s_addr));
126 printf(" %-15.15s", routename(mfc.mfc_mcastgrp.s_addr));
127 printf(" %9lu", mfc.mfc_pkt_cnt);
128 printf(" %3d ", mfc.mfc_parent);
129 for (vifi = 0; vifi <= maxvif; vifi++) {
130 if (mfc.mfc_ttls[vifi] > 0)
131 printf(" %u:%u", vifi,
132 mfc.mfc_ttls[vifi]);
133 }
134 printf("\n");
135
136 /* Print the bw meter information */
137 {
138 struct bw_meter bw_meter, *bwm;
139 int banner_printed2 = 0;
140
141 bwm = mfc.mfc_bw_meter;
142 while (bwm) {
143 kread((u_long)bwm, (char *)&bw_meter,
144 sizeof bw_meter);
145 print_bw_meter(&bw_meter,
146 &banner_printed2);
147 bwm = bw_meter.bm_mfc_next;
148 }
149 #if 0 /* Don't ever print it? */
150 if (! banner_printed2)
151 printf("\n No Bandwidth Meters\n");
152 #endif
153 }
154
155 m = mfc.mfc_next;
156 }
157 }
158 if (!banner_printed)
159 printf("\nMulticast Routing Table is empty\n");
160
161 printf("\n");
162 numeric_addr = saved_numeric_addr;
163 }
164
165 static void
print_bw_meter(struct bw_meter * bw_meter,int * banner_printed)166 print_bw_meter(struct bw_meter *bw_meter, int *banner_printed)
167 {
168 char s0[256], s1[256], s2[256], s3[256];
169 struct timeval now, end, delta;
170
171 gettimeofday(&now, NULL);
172
173 if (! *banner_printed) {
174 printf(" Bandwidth Meters\n");
175 printf(" %-30s", "Measured(Start|Packets|Bytes)");
176 printf(" %s", "Type");
177 printf(" %-30s", "Thresh(Interval|Packets|Bytes)");
178 printf(" Remain");
179 printf("\n");
180 *banner_printed = 1;
181 }
182
183 /* The measured values */
184 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
185 sprintf(s1, "%ju", (uintmax_t)bw_meter->bm_measured.b_packets);
186 else
187 sprintf(s1, "?");
188 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
189 sprintf(s2, "%ju", (uintmax_t)bw_meter->bm_measured.b_bytes);
190 else
191 sprintf(s2, "?");
192 sprintf(s0, "%lu.%lu|%.64s|%.64s",
193 bw_meter->bm_start_time.tv_sec,
194 bw_meter->bm_start_time.tv_usec,
195 s1, s2);
196 printf(" %-30s", s0);
197
198 /* The type of entry */
199 sprintf(s0, "%s", "?");
200 if (bw_meter->bm_flags & BW_METER_GEQ)
201 sprintf(s0, "%s", ">=");
202 else if (bw_meter->bm_flags & BW_METER_LEQ)
203 sprintf(s0, "%s", "<=");
204 printf(" %-3s", s0);
205
206 /* The threshold values */
207 if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
208 sprintf(s1, "%ju", (uintmax_t)bw_meter->bm_threshold.b_packets);
209 else
210 sprintf(s1, "?");
211 if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
212 sprintf(s2, "%ju", (uintmax_t)bw_meter->bm_threshold.b_bytes);
213 else
214 sprintf(s2, "?");
215 sprintf(s0, "%lu.%lu|%.64s|%.64s",
216 bw_meter->bm_threshold.b_time.tv_sec,
217 bw_meter->bm_threshold.b_time.tv_usec,
218 s1, s2);
219 printf(" %-30s", s0);
220
221 /* Remaining time */
222 timeradd(&bw_meter->bm_start_time,
223 &bw_meter->bm_threshold.b_time, &end);
224 if (timercmp(&now, &end, <=)) {
225 timersub(&end, &now, &delta);
226 sprintf(s3, "%lu.%lu", delta.tv_sec, delta.tv_usec);
227 } else {
228 /* Negative time */
229 timersub(&now, &end, &delta);
230 sprintf(s3, "-%lu.%lu", delta.tv_sec, delta.tv_usec);
231 }
232 printf(" %s", s3);
233
234 printf("\n");
235 }
236
237 void
mrt_stats(u_long mstaddr)238 mrt_stats(u_long mstaddr)
239 {
240 struct mrtstat mrtstat;
241
242 if (mstaddr == 0) {
243 printf("No IPv4 multicast routing compiled into this system.\n");
244 return;
245 }
246
247 kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
248 printf("IPv4 multicast forwarding:\n");
249
250 #define p(f, m) if (mrtstat.f || sflag <= 1) \
251 printf(m, mrtstat.f, plural(mrtstat.f))
252 #define p2(f, m) if (mrtstat.f || sflag <= 1) \
253 printf(m, mrtstat.f, plurales(mrtstat.f))
254
255 p(mrts_mfc_lookups, "\t%lu multicast forwarding cache lookup%s\n");
256 p2(mrts_mfc_misses, "\t%lu multicast forwarding cache miss%s\n");
257 p(mrts_upcalls, "\t%lu upcall%s to mrouted\n");
258 p(mrts_upq_ovflw, "\t%lu upcall queue overflow%s\n");
259 p(mrts_upq_sockfull,
260 "\t%lu upcall%s dropped due to full socket buffer\n");
261 p(mrts_cache_cleanups, "\t%lu cache cleanup%s\n");
262 p(mrts_no_route, "\t%lu datagram%s with no route for origin\n");
263 p(mrts_bad_tunnel, "\t%lu datagram%s arrived with bad tunneling\n");
264 p(mrts_cant_tunnel, "\t%lu datagram%s could not be tunneled\n");
265 p(mrts_wrong_if, "\t%lu datagram%s arrived on wrong interface\n");
266 p(mrts_drop_sel, "\t%lu datagram%s selectively dropped\n");
267 p(mrts_q_overflow, "\t%lu datagram%s dropped due to queue overflow\n");
268 p(mrts_pkt2large, "\t%lu datagram%s dropped for being too large\n");
269
270 #undef p2
271 #undef p
272 }
273