Annotation of src/usr.bin/netstat/mroute.c, Revision 1.10
1.10 ! millert 1: /* $OpenBSD: mroute.c,v 1.9 2003/02/01 01:51:31 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.
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: /*
40: * Print DVMRP multicast routing structures and statistics.
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:
63: char *
1.9 deraadt 64: pktscale(u_long n)
1.1 deraadt 65: {
66: static char buf[8];
67: char t;
68:
69: if (n < 1024)
70: t = ' ';
71: else if (n < 1024 * 1024) {
72: t = 'k';
73: n /= 1024;
74: } else {
75: t = 'm';
76: n /= 1048576;
77: }
78:
1.6 deraadt 79: snprintf(buf, sizeof buf, "%lu%c", n, t);
1.1 deraadt 80: return (buf);
81: }
82:
83: void
1.9 deraadt 84: mroutepr(u_long mrpaddr, u_long mfchashtbladdr, u_long mfchashaddr, u_long vifaddr)
1.1 deraadt 85: {
86: u_int mrtproto;
87: LIST_HEAD(, mfc) *mfchashtbl;
88: u_long mfchash;
89: struct vif viftable[MAXVIFS];
90: struct mfc *mfcp, mfc;
1.7 mpech 91: struct vif *v;
92: vifi_t vifi;
1.1 deraadt 93: int i;
94: int banner_printed;
95: int saved_nflag;
96: int numvifs;
97: int nmfc; /* No. of cache entries */
98:
99: if (mrpaddr == 0) {
100: printf("ip_mrtproto: symbol not in namelist\n");
101: return;
102: }
103:
104: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
105: switch (mrtproto) {
106: case 0:
107: printf("no multicast routing compiled into this system\n");
108: return;
109:
110: case IGMP_DVMRP:
111: break;
112:
113: default:
114: printf("multicast routing protocol %u, unknown\n", mrtproto);
115: return;
116: }
117:
118: if (mfchashtbladdr == 0) {
119: printf("mfchashtbl: symbol not in namelist\n");
120: return;
121: }
122: if (mfchashaddr == 0) {
123: printf("mfchash: symbol not in namelist\n");
124: return;
125: }
126: if (vifaddr == 0) {
127: printf("viftable: symbol not in namelist\n");
128: return;
129: }
130:
131: saved_nflag = nflag;
132: nflag = 1;
133:
134: kread(vifaddr, (char *)&viftable, sizeof(viftable));
135: banner_printed = 0;
136: numvifs = 0;
137:
138: for (vifi = 0, v = viftable; vifi < MAXVIFS; ++vifi, ++v) {
139: if (v->v_lcl_addr.s_addr == 0)
140: continue;
141: numvifs = vifi;
142:
143: if (!banner_printed) {
144: printf("\nVirtual Interface Table\n %s%s",
145: "Vif Thresh Limit Local-Address ",
146: "Remote-Address Pkt_in Pkt_out\n");
147: banner_printed = 1;
148: }
149:
150: printf(" %3u %3u %5u %-15.15s",
151: vifi, v->v_threshold, v->v_rate_limit,
152: routename(v->v_lcl_addr.s_addr));
1.4 millert 153: printf(" %-15.15s %6lu %7lu\n", (v->v_flags & VIFF_TUNNEL) ?
1.1 deraadt 154: routename(v->v_rmt_addr.s_addr) : "",
155: v->v_pkt_in, v->v_pkt_out);
156: }
157: if (!banner_printed)
158: printf("\nVirtual Interface Table is empty\n");
159:
160: kread(mfchashtbladdr, (char *)&mfchashtbl, sizeof(mfchashtbl));
161: kread(mfchashaddr, (char *)&mfchash, sizeof(mfchash));
162: banner_printed = 0;
163: nmfc = 0;
164:
1.2 deraadt 165: if (mfchashtbl != 0)
166: for (i = 0; i <= mfchash; ++i) {
167: kread((u_long)&mfchashtbl[i], (char *)&mfcp, sizeof(mfcp));
168:
169: for (; mfcp != 0; mfcp = mfc.mfc_hash.le_next) {
170: if (!banner_printed) {
171: printf("\nMulticast Forwarding Cache\n %s%s",
172: "Hash Origin Mcastgroup ",
173: "Traffic In-Vif Out-Vifs/Forw-ttl\n");
174: banner_printed = 1;
175: }
176:
177: kread((u_long)mfcp, (char *)&mfc, sizeof(mfc));
178: printf(" %3u %-15.15s",
179: i, routename(mfc.mfc_origin.s_addr));
180: printf(" %-15.15s %7s %3u ",
181: routename(mfc.mfc_mcastgrp.s_addr),
182: pktscale(mfc.mfc_pkt_cnt), mfc.mfc_parent);
183: for (vifi = 0; vifi <= numvifs; ++vifi)
184: if (mfc.mfc_ttls[vifi])
185: printf(" %u/%u", vifi,
186: mfc.mfc_ttls[vifi]);
1.1 deraadt 187:
1.2 deraadt 188: printf("\n");
189: nmfc++;
1.1 deraadt 190: }
191: }
192: if (!banner_printed)
193: printf("\nMulticast Forwarding Cache is empty\n");
194: else
195: printf("\nTotal no. of entries in cache: %d\n", nmfc);
196:
197: printf("\n");
198: nflag = saved_nflag;
199: }
200:
201:
202: void
1.9 deraadt 203: mrt_stats(u_long mrpaddr, u_long mstaddr)
1.1 deraadt 204: {
205: u_int mrtproto;
206: struct mrtstat mrtstat;
207:
208: if (mrpaddr == 0) {
209: printf("ip_mrtproto: symbol not in namelist\n");
210: return;
211: }
212:
213: kread(mrpaddr, (char *)&mrtproto, sizeof(mrtproto));
214: switch (mrtproto) {
215: case 0:
216: printf("no multicast routing compiled into this system\n");
217: return;
218:
219: case IGMP_DVMRP:
220: break;
221:
222: default:
223: printf("multicast routing protocol %u, unknown\n", mrtproto);
224: return;
225: }
226:
227: if (mstaddr == 0) {
228: printf("mrtstat: symbol not in namelist\n");
229: return;
230: }
231:
232: kread(mstaddr, (char *)&mrtstat, sizeof(mrtstat));
233: printf("multicast routing:\n");
1.8 itojun 234: printf("\t%lu datagram%s with no route for origin\n",
1.1 deraadt 235: mrtstat.mrts_no_route, plural(mrtstat.mrts_no_route));
1.8 itojun 236: printf("\t%lu upcall%s made to mrouted\n",
1.1 deraadt 237: mrtstat.mrts_upcalls, plural(mrtstat.mrts_upcalls));
1.8 itojun 238: printf("\t%lu datagram%s with malformed tunnel options\n",
1.1 deraadt 239: mrtstat.mrts_bad_tunnel, plural(mrtstat.mrts_bad_tunnel));
1.8 itojun 240: printf("\t%lu datagram%s with no room for tunnel options\n",
1.1 deraadt 241: mrtstat.mrts_cant_tunnel, plural(mrtstat.mrts_cant_tunnel));
1.8 itojun 242: printf("\t%lu datagram%s arrived on wrong interface\n",
1.1 deraadt 243: mrtstat.mrts_wrong_if, plural(mrtstat.mrts_wrong_if));
1.8 itojun 244: printf("\t%lu datagram%s dropped due to upcall Q overflow\n",
1.1 deraadt 245: mrtstat.mrts_upq_ovflw, plural(mrtstat.mrts_upq_ovflw));
1.8 itojun 246: printf("\t%lu datagram%s dropped due to upcall socket overflow\n",
1.1 deraadt 247: mrtstat.mrts_upq_sockfull, plural(mrtstat.mrts_upq_sockfull));
1.8 itojun 248: printf("\t%lu datagram%s cleaned up by the cache\n",
1.1 deraadt 249: mrtstat.mrts_cache_cleanups, plural(mrtstat.mrts_cache_cleanups));
1.8 itojun 250: printf("\t%lu datagram%s dropped selectively by ratelimiter\n",
1.1 deraadt 251: mrtstat.mrts_drop_sel, plural(mrtstat.mrts_drop_sel));
1.8 itojun 252: printf("\t%lu datagram%s dropped - bucket Q overflow\n",
1.1 deraadt 253: mrtstat.mrts_q_overflow, plural(mrtstat.mrts_q_overflow));
1.8 itojun 254: printf("\t%lu datagram%s dropped - larger than bkt size\n",
1.1 deraadt 255: mrtstat.mrts_pkt2large, plural(mrtstat.mrts_pkt2large));
256: }
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