Annotation of src/usr.bin/netstat/mroute.c, Revision 1.1.1.1
1.1 deraadt 1: /* $NetBSD: mroute.c,v 1.9 1995/10/03 21:42:42 thorpej Exp $ */
2:
3: /*
4: * Copyright (c) 1989 Stephen Deering
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Stephen Deering of Stanford University.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: *
39: * from: @(#)mroute.c 8.1 (Berkeley) 6/6/93
40: */
41:
42: /*
43: * Print DVMRP multicast routing structures and statistics.
44: *
45: * MROUTING 1.0
46: */
47:
48: #include <sys/param.h>
49: #include <sys/socket.h>
50: #include <sys/socketvar.h>
51: #include <sys/protosw.h>
52:
53: #include <net/if.h>
54: #include <net/route.h>
55: #include <netinet/in.h>
56: #include <netinet/igmp.h>
57: #define _KERNEL
58: #include <netinet/ip_mroute.h>
59: #undef _KERNEL
60:
61: #include <stdio.h>
62: #include <stdlib.h>
63: #include "netstat.h"
64:
65: char *
66: pktscale(n)
67: u_long n;
68: {
69: static char buf[8];
70: char t;
71:
72: if (n < 1024)
73: t = ' ';
74: else if (n < 1024 * 1024) {
75: t = 'k';
76: n /= 1024;
77: } else {
78: t = 'm';
79: n /= 1048576;
80: }
81:
82: sprintf(buf, "%u%c", n, t);
83: return (buf);
84: }
85:
86: void
87: mroutepr(mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr)
88: u_long mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr;
89: {
90: u_int mrtproto;
91: LIST_HEAD(, mfc) *mfchashtbl;
92: u_long mfchash;
93: struct vif viftable[MAXVIFS];
94: struct mfc *mfcp, mfc;
95: register struct vif *v;
96: register vifi_t vifi;
97: struct in_addr *grp;
98: int i;
99: int banner_printed;
100: int saved_nflag;
101: int numvifs;
102: int nmfc; /* No. of cache entries */
103:
104: if (mrpaddr == 0) {
105: printf("ip_mrtproto: symbol not in namelist\n");
106: return;
107: }
108:
109: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
110: switch (mrtproto) {
111: case 0:
112: printf("no multicast routing compiled into this system\n");
113: return;
114:
115: case IGMP_DVMRP:
116: break;
117:
118: default:
119: printf("multicast routing protocol %u, unknown\n", mrtproto);
120: return;
121: }
122:
123: if (mfchashtbladdr == 0) {
124: printf("mfchashtbl: symbol not in namelist\n");
125: return;
126: }
127: if (mfchashaddr == 0) {
128: printf("mfchash: symbol not in namelist\n");
129: return;
130: }
131: if (vifaddr == 0) {
132: printf("viftable: symbol not in namelist\n");
133: return;
134: }
135:
136: saved_nflag = nflag;
137: nflag = 1;
138:
139: kread(vifaddr, (char *)&viftable, sizeof(viftable));
140: banner_printed = 0;
141: numvifs = 0;
142:
143: for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
144: if (v->v_lcl_addr.s_addr == 0)
145: continue;
146: numvifs = vifi;
147:
148: if (!banner_printed) {
149: printf("\nVirtual Interface Table\n %s%s",
150: "Vif Thresh Limit Local-Address ",
151: "Remote-Address Pkt_in Pkt_out\n");
152: banner_printed = 1;
153: }
154:
155: printf(" %3u %3u %5u %-15.15s",
156: vifi, v->v_threshold, v->v_rate_limit,
157: routename(v->v_lcl_addr.s_addr));
158: printf(" %-15.15s %6u %7u\n", (v->v_flags & VIFF_TUNNEL) ?
159: routename(v->v_rmt_addr.s_addr) : "",
160: v->v_pkt_in, v->v_pkt_out);
161: }
162: if (!banner_printed)
163: printf("\nVirtual Interface Table is empty\n");
164:
165: kread(mfchashtbladdr, (char *)&mfchashtbl, sizeof(mfchashtbl));
166: kread(mfchashaddr, (char *)&mfchash, sizeof(mfchash));
167: banner_printed = 0;
168: nmfc = 0;
169:
170: for (i = 0; i <= mfchash; ++i) {
171: kread((u_long)&mfchashtbl[i], (char *)&mfcp, sizeof(mfcp));
172:
173: for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
174: if (!banner_printed) {
175: printf("\nMulticast Forwarding Cache\n %s%s",
176: "Hash Origin Mcastgroup ",
177: "Traffic In-Vif Out-Vifs/Forw-ttl\n");
178: banner_printed = 1;
179: }
180:
181: kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
182: printf(" %3u %-15.15s",
183: i, routename(mfc.mfc_origin.s_addr));
184: printf(" %-15.15s %7s %3u ",
185: routename(mfc.mfc_mcastgrp.s_addr),
186: pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
187: for (vifi = 0; vifi <= numvifs; ++vifi)
188: if (mfc.mfc_ttls[vifi])
189: printf(" %u/%u", vifi, mfc.mfc_ttls[vifi]);
190:
191: printf("\n");
192: nmfc++;
193: }
194: }
195: if (!banner_printed)
196: printf("\nMulticast Forwarding Cache is empty\n");
197: else
198: printf("\nTotal no. of entries in cache: %d\n", nmfc);
199:
200: printf("\n");
201: nflag = saved_nflag;
202: }
203:
204:
205: void
206: mrt_stats(mrpaddr, mstaddr)
207: u_long mrpaddr, mstaddr;
208: {
209: u_int mrtproto;
210: struct mrtstat mrtstat;
211:
212: if (mrpaddr == 0) {
213: printf("ip_mrtproto: symbol not in namelist\n");
214: return;
215: }
216:
217: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
218: switch (mrtproto) {
219: case 0:
220: printf("no multicast routing compiled into this system\n");
221: return;
222:
223: case IGMP_DVMRP:
224: break;
225:
226: default:
227: printf("multicast routing protocol %u, unknown\n", mrtproto);
228: return;
229: }
230:
231: if (mstaddr == 0) {
232: printf("mrtstat: symbol not in namelist\n");
233: return;
234: }
235:
236: kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
237: printf("multicast routing:\n");
238: printf("\t%d datagram%s with no route for origin\n",
239: mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
240: printf("\t%d upcall%s made to mrouted\n",
241: mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
242: printf("\t%d datagram%s with malformed tunnel options\n",
243: mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
244: printf("\t%d datagram%s with no room for tunnel options\n",
245: mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
246: printf("\t%d datagram%s arrived on wrong interface\n",
247: mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
248: printf("\t%d datagram%s dropped due to upcall Q overflow\n",
249: mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
250: printf("\t%d datagram%s dropped due to upcall socket overflow\n",
251: mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
252: printf("\t%d datagram%s cleaned up by the cache\n",
253: mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
254: printf("\t%d datagram%s dropped selectively by ratelimiter\n",
255: mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
256: printf("\t%d datagram%s dropped - bucket Q overflow\n",
257: mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
258: printf("\t%d datagram%s dropped - larger than bkt size\n",
259: mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
260: }
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