Annotation of src/usr.bin/netstat/mroute.c, Revision 1.13
1.13 ! jaredy 1: /* $OpenBSD: mroute.c,v 1.12 2005/01/14 15:00:44 mcbride Exp $ */
1.2 deraadt 2: /* $NetBSD: mroute.c,v 1.10 1996/05/11 13:51:27 mycroft Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1989 Stephen Deering
6: * Copyright (c) 1992, 1993
7: * The Regents of the University of California. All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * Stephen Deering of Stanford University.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
1.10 millert 20: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * from: @(#)mroute.c 8.1 (Berkeley) 6/6/93
37: */
38:
39: /*
1.12 mcbride 40: * Print multicast routing structures and statistics.
1.1 deraadt 41: *
42: * MROUTING 1.0
43: */
44:
45: #include <sys/param.h>
46: #include <sys/socket.h>
47: #include <sys/socketvar.h>
48: #include <sys/protosw.h>
49:
50: #include <net/if.h>
51: #include <net/route.h>
52: #include <netinet/in.h>
53: #include <netinet/igmp.h>
54: #define _KERNEL
55: #include <netinet/ip_mroute.h>
56: #undef _KERNEL
57:
1.5 millert 58: #include <limits.h>
1.1 deraadt 59: #include <stdio.h>
60: #include <stdlib.h>
61: #include "netstat.h"
62:
1.12 mcbride 63: static void print_bw_meter(struct bw_meter *bw_meter, int *banner_printed);
64:
1.11 deraadt 65: static char *
1.9 deraadt 66: pktscale(u_long n)
1.1 deraadt 67: {
68: static char buf[8];
69: char t;
70:
71: if (n < 1024)
72: t = ' ';
73: else if (n < 1024 * 1024) {
74: t = 'k';
75: n /= 1024;
76: } else {
77: t = 'm';
78: n /= 1048576;
79: }
80:
1.6 deraadt 81: snprintf(buf, sizeof buf, "%lu%c", n, t);
1.1 deraadt 82: return (buf);
83: }
84:
85: void
1.9 deraadt 86: mroutepr(u_long mrpaddr, u_long mfchashtbladdr, u_long mfchashaddr, u_long vifaddr)
1.1 deraadt 87: {
88: u_int mrtproto;
89: LIST_HEAD(, mfc) *mfchashtbl;
90: u_long mfchash;
91: struct vif viftable[MAXVIFS];
92: struct mfc *mfcp, mfc;
1.7 mpech 93: struct vif *v;
94: vifi_t vifi;
1.1 deraadt 95: int i;
96: int banner_printed;
97: int saved_nflag;
98: int numvifs;
99: int nmfc; /* No. of cache entries */
100:
101: if (mrpaddr == 0) {
102: printf("ip_mrtproto: symbol not in namelist\n");
103: return;
104: }
105:
1.13 ! jaredy 106: kread(mrpaddr, &mrtproto, sizeof(mrtproto));
1.1 deraadt 107: switch (mrtproto) {
108: case 0:
109: printf("no multicast routing compiled into this system\n");
110: return;
111:
112: case IGMP_DVMRP:
113: break;
114:
115: default:
116: printf("multicast routing protocol %u, unknown\n", mrtproto);
117: return;
118: }
119:
120: if (mfchashtbladdr == 0) {
121: printf("mfchashtbl: symbol not in namelist\n");
122: return;
123: }
124: if (mfchashaddr == 0) {
125: printf("mfchash: symbol not in namelist\n");
126: return;
127: }
128: if (vifaddr == 0) {
129: printf("viftable: symbol not in namelist\n");
130: return;
131: }
132:
133: saved_nflag = nflag;
134: nflag = 1;
135:
1.13 ! jaredy 136: kread(vifaddr, &viftable, sizeof(viftable));
1.1 deraadt 137: banner_printed = 0;
138: numvifs = 0;
139:
140: for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
141: if (v->v_lcl_addr.s_addr == 0)
142: continue;
143: numvifs = vifi;
144:
145: if (!banner_printed) {
146: printf("\nVirtual Interface Table\n %s%s",
147: "Vif Thresh Limit Local-Address ",
148: "Remote-Address Pkt_in Pkt_out\n");
149: banner_printed = 1;
150: }
151:
152: printf(" %3u %3u %5u %-15.15s",
153: vifi, v->v_threshold, v->v_rate_limit,
154: routename(v->v_lcl_addr.s_addr));
1.4 millert 155: printf(" %-15.15s %6lu %7lu\n", (v->v_flags & VIFF_TUNNEL) ?
1.1 deraadt 156: routename(v->v_rmt_addr.s_addr) : "",
157: v->v_pkt_in, v->v_pkt_out);
158: }
159: if (!banner_printed)
160: printf("\nVirtual Interface Table is empty\n");
161:
1.13 ! jaredy 162: kread(mfchashtbladdr, &mfchashtbl, sizeof(mfchashtbl));
! 163: kread(mfchashaddr, &mfchash, sizeof(mfchash));
1.1 deraadt 164: banner_printed = 0;
165: nmfc = 0;
166:
1.2 deraadt 167: if (mfchashtbl != 0)
168: for (i = 0; i <= mfchash; ++i) {
1.13 ! jaredy 169: kread((u_long)&mfchashtbl[i], &mfcp, sizeof(mfcp));
1.2 deraadt 170:
171: for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
172: if (!banner_printed) {
173: printf("\nMulticast Forwarding Cache\n %s%s",
174: "Hash Origin Mcastgroup ",
175: "Traffic In-Vif Out-Vifs/Forw-ttl\n");
176: banner_printed = 1;
177: }
178:
1.13 ! jaredy 179: kread((u_long)mfcp, &mfc, sizeof(mfc));
1.2 deraadt 180: printf(" %3u %-15.15s",
181: i, routename(mfc.mfc_origin.s_addr));
182: printf(" %-15.15s %7s %3u ",
183: routename(mfc.mfc_mcastgrp.s_addr),
184: pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
185: for (vifi = 0; vifi <= numvifs; ++vifi)
186: if (mfc.mfc_ttls[vifi])
187: printf(" %u/%u", vifi,
188: mfc.mfc_ttls[vifi]);
1.1 deraadt 189:
1.2 deraadt 190: printf("\n");
1.12 mcbride 191:
192: /* Print the bw meter information */
193: {
194: struct bw_meter bw_meter, *bwm;
195: int banner_printed2 = 0;
196:
197: bwm = mfc.mfc_bw_meter;
198: while (bwm) {
199: kread((u_long)bwm,
1.13 ! jaredy 200: &bw_meter,
1.12 mcbride 201: sizeof bw_meter);
202: print_bw_meter(&bw_meter,
203: &banner_printed2);
204: bwm = bw_meter.bm_mfc_next;
205: }
206: #if 0 /* Don't ever print it? */
207: if (! banner_printed2)
208: printf("\n No Bandwidth Meters\n");
209: #endif
210: }
211:
1.2 deraadt 212: nmfc++;
1.1 deraadt 213: }
214: }
215: if (!banner_printed)
216: printf("\nMulticast Forwarding Cache is empty\n");
217: else
218: printf("\nTotal no. of entries in cache: %d\n", nmfc);
219:
220: printf("\n");
221: nflag = saved_nflag;
222: }
223:
1.12 mcbride 224: static void
225: print_bw_meter(struct bw_meter *bw_meter, int *banner_printed)
226: {
227: char s0[256], s1[256], s2[256], s3[256];
228: struct timeval now, end, delta;
229:
230: gettimeofday(&now, NULL);
231:
232: if (! *banner_printed) {
233: printf(" Bandwidth Meters\n");
234: printf(" %-30s", "Measured(Start|Packets|Bytes)");
235: printf(" %s", "Type");
236: printf(" %-30s", "Thresh(Interval|Packets|Bytes)");
237: printf(" Remain");
238: printf("\n");
239: *banner_printed = 1;
240: }
241:
242: /* The measured values */
243: if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
244: snprintf(s1, sizeof s1, "%llu",
245: bw_meter->bm_measured.b_packets);
246: else
247: snprintf(s1, sizeof s1, "?");
248: if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
249: snprintf(s2, sizeof s2, "%llu", bw_meter->bm_measured.b_bytes);
250: else
251: snprintf(s2, sizeof s2, "?");
252: snprintf(s0, sizeof s0, "%lu.%lu|%s|%s",
253: bw_meter->bm_start_time.tv_sec,
254: bw_meter->bm_start_time.tv_usec,
255: s1, s2);
256: printf(" %-30s", s0);
257:
258: /* The type of entry */
259: snprintf(s0, sizeof s0, "%s", "?");
260: if (bw_meter->bm_flags & BW_METER_GEQ)
261: snprintf(s0, sizeof s0, "%s", ">=");
262: else if (bw_meter->bm_flags & BW_METER_LEQ)
263: snprintf(s0, sizeof s0, "%s", "<=");
264: printf(" %-3s", s0);
265:
266: /* The threshold values */
267: if (bw_meter->bm_flags & BW_METER_UNIT_PACKETS)
268: snprintf(s1, sizeof s1, "%llu",
269: bw_meter->bm_threshold.b_packets);
270: else
271: snprintf(s1, sizeof s1, "?");
272: if (bw_meter->bm_flags & BW_METER_UNIT_BYTES)
273: snprintf(s2, sizeof s2, "%llu",
274: bw_meter->bm_threshold.b_bytes);
275: else
276: snprintf(s2, sizeof s2, "?");
277: snprintf(s0, sizeof s0, "%lu.%lu|%s|%s",
278: bw_meter->bm_threshold.b_time.tv_sec,
279: bw_meter->bm_threshold.b_time.tv_usec,
280: s1, s2);
281: printf(" %-30s", s0);
282:
283: /* Remaining time */
284: timeradd(&bw_meter->bm_start_time,
285: &bw_meter->bm_threshold.b_time, &end);
286: if (timercmp(&now, &end, <=)) {
287: timersub(&end, &now, &delta);
288: snprintf(s3, sizeof s3, "%lu.%lu",
289: delta.tv_sec, delta.tv_usec);
290: } else {
291: /* Negative time */
292: timersub(&now, &end, &delta);
293: snprintf(s3, sizeof s3, "-%lu.%lu",
294: delta.tv_sec, delta.tv_usec);
295: }
296: printf(" %s", s3);
297:
298: printf("\n");
299: }
1.1 deraadt 300:
301: void
1.9 deraadt 302: mrt_stats(u_long mrpaddr, u_long mstaddr)
1.1 deraadt 303: {
304: u_int mrtproto;
305: struct mrtstat mrtstat;
306:
307: if (mrpaddr == 0) {
308: printf("ip_mrtproto: symbol not in namelist\n");
309: return;
310: }
311:
1.13 ! jaredy 312: kread(mrpaddr, &mrtproto, sizeof(mrtproto));
1.1 deraadt 313: switch (mrtproto) {
314: case 0:
315: printf("no multicast routing compiled into this system\n");
316: return;
317:
318: case IGMP_DVMRP:
319: break;
320:
321: default:
322: printf("multicast routing protocol %u, unknown\n", mrtproto);
323: return;
324: }
325:
326: if (mstaddr == 0) {
327: printf("mrtstat: symbol not in namelist\n");
328: return;
329: }
330:
1.13 ! jaredy 331: kread(mstaddr, &mrtstat, sizeof(mrtstat));
1.1 deraadt 332: printf("multicast routing:\n");
1.8 itojun 333: printf("\t%lu datagram%s with no route for origin\n",
1.1 deraadt 334: mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
1.8 itojun 335: printf("\t%lu upcall%s made to mrouted\n",
1.1 deraadt 336: mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
1.8 itojun 337: printf("\t%lu datagram%s with malformed tunnel options\n",
1.1 deraadt 338: mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
1.8 itojun 339: printf("\t%lu datagram%s with no room for tunnel options\n",
1.1 deraadt 340: mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
1.8 itojun 341: printf("\t%lu datagram%s arrived on wrong interface\n",
1.1 deraadt 342: mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
1.8 itojun 343: printf("\t%lu datagram%s dropped due to upcall Q overflow\n",
1.1 deraadt 344: mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
1.8 itojun 345: printf("\t%lu datagram%s dropped due to upcall socket overflow\n",
1.1 deraadt 346: mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
1.8 itojun 347: printf("\t%lu datagram%s cleaned up by the cache\n",
1.1 deraadt 348: mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
1.8 itojun 349: printf("\t%lu datagram%s dropped selectively by ratelimiter\n",
1.1 deraadt 350: mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
1.8 itojun 351: printf("\t%lu datagram%s dropped - bucket Q overflow\n",
1.1 deraadt 352: mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
1.8 itojun 353: printf("\t%lu datagram%s dropped - larger than bkt size\n",
1.1 deraadt 354: mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
355: }
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