Annotation of src/usr.bin/netstat/mroute.c, Revision 1.7
1.7 ! mpech 1: /* $OpenBSD: mroute.c,v 1.6 1998/02/27 12:07:37 deraadt 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.
20: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by the University of
23: * California, Berkeley and its contributors.
24: * 4. Neither the name of the University nor the names of its contributors
25: * may be used to endorse or promote products derived from this software
26: * without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38: * SUCH DAMAGE.
39: *
40: * from: @(#)mroute.c 8.1 (Berkeley) 6/6/93
41: */
42:
43: /*
44: * Print DVMRP multicast routing structures and statistics.
45: *
46: * MROUTING 1.0
47: */
48:
49: #include <sys/param.h>
50: #include <sys/socket.h>
51: #include <sys/socketvar.h>
52: #include <sys/protosw.h>
53:
54: #include <net/if.h>
55: #include <net/route.h>
56: #include <netinet/in.h>
57: #include <netinet/igmp.h>
58: #define _KERNEL
59: #include <netinet/ip_mroute.h>
60: #undef _KERNEL
61:
1.5 millert 62: #include <limits.h>
1.1 deraadt 63: #include <stdio.h>
64: #include <stdlib.h>
65: #include "netstat.h"
66:
67: char *
68: pktscale(n)
69: u_long n;
70: {
71: static char buf[8];
72: char t;
73:
74: if (n < 1024)
75: t = ' ';
76: else if (n < 1024 * 1024) {
77: t = 'k';
78: n /= 1024;
79: } else {
80: t = 'm';
81: n /= 1048576;
82: }
83:
1.6 deraadt 84: snprintf(buf, sizeof buf, "%lu%c", n, t);
1.1 deraadt 85: return (buf);
86: }
87:
88: void
89: mroutepr(mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr)
90: u_long mrpaddr, mfchashtbladdr, mfchashaddr, vifaddr;
91: {
92: u_int mrtproto;
93: LIST_HEAD(, mfc) *mfchashtbl;
94: u_long mfchash;
95: struct vif viftable[MAXVIFS];
96: struct mfc *mfcp, mfc;
1.7 ! mpech 97: struct vif *v;
! 98: vifi_t vifi;
1.1 deraadt 99: int i;
100: int banner_printed;
101: int saved_nflag;
102: int numvifs;
103: int nmfc; /* No. of cache entries */
104:
105: if (mrpaddr == 0) {
106: printf("ip_mrtproto: symbol not in namelist\n");
107: return;
108: }
109:
110: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
111: switch (mrtproto) {
112: case 0:
113: printf("no multicast routing compiled into this system\n");
114: return;
115:
116: case IGMP_DVMRP:
117: break;
118:
119: default:
120: printf("multicast routing protocol %u, unknown\n", mrtproto);
121: return;
122: }
123:
124: if (mfchashtbladdr == 0) {
125: printf("mfchashtbl: symbol not in namelist\n");
126: return;
127: }
128: if (mfchashaddr == 0) {
129: printf("mfchash: symbol not in namelist\n");
130: return;
131: }
132: if (vifaddr == 0) {
133: printf("viftable: symbol not in namelist\n");
134: return;
135: }
136:
137: saved_nflag = nflag;
138: nflag = 1;
139:
140: kread(vifaddr, (char *)&viftable, sizeof(viftable));
141: banner_printed = 0;
142: numvifs = 0;
143:
144: for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
145: if (v->v_lcl_addr.s_addr == 0)
146: continue;
147: numvifs = vifi;
148:
149: if (!banner_printed) {
150: printf("\nVirtual Interface Table\n %s%s",
151: "Vif Thresh Limit Local-Address ",
152: "Remote-Address Pkt_in Pkt_out\n");
153: banner_printed = 1;
154: }
155:
156: printf(" %3u %3u %5u %-15.15s",
157: vifi, v->v_threshold, v->v_rate_limit,
158: routename(v->v_lcl_addr.s_addr));
1.4 millert 159: printf(" %-15.15s %6lu %7lu\n", (v->v_flags & VIFF_TUNNEL) ?
1.1 deraadt 160: routename(v->v_rmt_addr.s_addr) : "",
161: v->v_pkt_in, v->v_pkt_out);
162: }
163: if (!banner_printed)
164: printf("\nVirtual Interface Table is empty\n");
165:
166: kread(mfchashtbladdr, (char *)&mfchashtbl, sizeof(mfchashtbl));
167: kread(mfchashaddr, (char *)&mfchash, sizeof(mfchash));
168: banner_printed = 0;
169: nmfc = 0;
170:
1.2 deraadt 171: if (mfchashtbl != 0)
172: for (i = 0; i <= mfchash; ++i) {
173: kread((u_long)&mfchashtbl[i], (char *)&mfcp, sizeof(mfcp));
174:
175: for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
176: if (!banner_printed) {
177: printf("\nMulticast Forwarding Cache\n %s%s",
178: "Hash Origin Mcastgroup ",
179: "Traffic In-Vif Out-Vifs/Forw-ttl\n");
180: banner_printed = 1;
181: }
182:
183: kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
184: printf(" %3u %-15.15s",
185: i, routename(mfc.mfc_origin.s_addr));
186: printf(" %-15.15s %7s %3u ",
187: routename(mfc.mfc_mcastgrp.s_addr),
188: pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
189: for (vifi = 0; vifi <= numvifs; ++vifi)
190: if (mfc.mfc_ttls[vifi])
191: printf(" %u/%u", vifi,
192: mfc.mfc_ttls[vifi]);
1.1 deraadt 193:
1.2 deraadt 194: printf("\n");
195: nmfc++;
1.1 deraadt 196: }
197: }
198: if (!banner_printed)
199: printf("\nMulticast Forwarding Cache is empty\n");
200: else
201: printf("\nTotal no. of entries in cache: %d\n", nmfc);
202:
203: printf("\n");
204: nflag = saved_nflag;
205: }
206:
207:
208: void
209: mrt_stats(mrpaddr, mstaddr)
210: u_long mrpaddr, mstaddr;
211: {
212: u_int mrtproto;
213: struct mrtstat mrtstat;
214:
215: if (mrpaddr == 0) {
216: printf("ip_mrtproto: symbol not in namelist\n");
217: return;
218: }
219:
220: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
221: switch (mrtproto) {
222: case 0:
223: printf("no multicast routing compiled into this system\n");
224: return;
225:
226: case IGMP_DVMRP:
227: break;
228:
229: default:
230: printf("multicast routing protocol %u, unknown\n", mrtproto);
231: return;
232: }
233:
234: if (mstaddr == 0) {
235: printf("mrtstat: symbol not in namelist\n");
236: return;
237: }
238:
239: kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
240: printf("multicast routing:\n");
1.4 millert 241: printf("\t%ld datagram%s with no route for origin\n",
1.1 deraadt 242: mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
1.4 millert 243: printf("\t%ld upcall%s made to mrouted\n",
1.1 deraadt 244: mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
1.4 millert 245: printf("\t%ld datagram%s with malformed tunnel options\n",
1.1 deraadt 246: mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
1.4 millert 247: printf("\t%ld datagram%s with no room for tunnel options\n",
1.1 deraadt 248: mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
1.4 millert 249: printf("\t%ld datagram%s arrived on wrong interface\n",
1.1 deraadt 250: mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
1.4 millert 251: printf("\t%ld datagram%s dropped due to upcall Q overflow\n",
1.1 deraadt 252: mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
1.4 millert 253: printf("\t%ld datagram%s dropped due to upcall socket overflow\n",
1.1 deraadt 254: mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
1.4 millert 255: printf("\t%ld datagram%s cleaned up by the cache\n",
1.1 deraadt 256: mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
1.4 millert 257: printf("\t%ld datagram%s dropped selectively by ratelimiter\n",
1.1 deraadt 258: mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
1.4 millert 259: printf("\t%ld datagram%s dropped - bucket Q overflow\n",
1.1 deraadt 260: mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
1.4 millert 261: printf("\t%ld datagram%s dropped - larger than bkt size\n",
1.1 deraadt 262: mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
263: }
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