Annotation of src/usr.bin/netstat/mroute6.c, Revision 1.23
1.23 ! rzalamen 1: /* $OpenBSD: mroute6.c,v 1.22 2016/12/22 11:04:44 rzalamena Exp $ */
1.1 itojun 2:
3: /*
4: * Copyright (C) 1998 WIDE Project.
5: * All rights reserved.
1.3 mickey 6: *
1.1 itojun 7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. Neither the name of the project nor the names of its contributors
16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
1.3 mickey 18: *
1.1 itojun 19: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
31:
32: /*
33: * Copyright (c) 1989 Stephen Deering
34: * Copyright (c) 1992, 1993
35: * The Regents of the University of California. All rights reserved.
36: *
37: * This code is derived from software contributed to Berkeley by
38: * Stephen Deering of Stanford University.
39: *
40: * Redistribution and use in source and binary forms, with or without
41: * modification, are permitted provided that the following conditions
42: * are met:
43: * 1. Redistributions of source code must retain the above copyright
44: * notice, this list of conditions and the following disclaimer.
45: * 2. Redistributions in binary form must reproduce the above copyright
46: * notice, this list of conditions and the following disclaimer in the
47: * documentation and/or other materials provided with the distribution.
1.7 millert 48: * 3. Neither the name of the University nor the names of its contributors
1.1 itojun 49: * may be used to endorse or promote products derived from this software
50: * without specific prior written permission.
51: *
52: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62: * SUCH DAMAGE.
63: *
64: * @(#)mroute.c 8.2 (Berkeley) 4/28/95
65: */
66:
1.15 deraadt 67: #include <sys/types.h>
1.21 guenther 68: #include <sys/select.h>
1.1 itojun 69: #include <sys/socket.h>
1.10 deraadt 70: #include <sys/sysctl.h>
1.1 itojun 71:
72: #include <net/if.h>
73: #include <netinet/in.h>
74: #include <netinet6/ip6_mroute.h>
75:
1.11 chl 76: #include <err.h>
77: #include <errno.h>
1.1 itojun 78: #include <stdio.h>
1.20 dcoppa 79: #include <stdlib.h>
1.17 claudio 80: #include <util.h>
1.1 itojun 81: #include "netstat.h"
82:
83: #define WID_ORG (lflag ? 39 : (nflag ? 29 : 18)) /* width of origin column */
84: #define WID_GRP (lflag ? 18 : (nflag ? 16 : 18)) /* width of group column */
85:
86: void
1.17 claudio 87: mroute6pr(void)
1.1 itojun 88: {
1.18 sthen 89: char *buf = NULL;
1.17 claudio 90: char fmtbuf[FMT_SCALED_STRSIZE];
91: struct mf6cinfo *mfc;
92: struct mif6info *mif;
93: size_t needed, mifi, nummifs, mfci, nummfcs;
94: int banner_printed, saved_nflag;
95: mifi_t maxmif = 0;
1.6 deraadt 96: u_int mrtproto;
1.13 guenther 97: int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO };
1.10 deraadt 98: size_t len = sizeof(int);
1.1 itojun 99:
1.10 deraadt 100: if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),
101: &mrtproto, &len, NULL, 0) == -1) {
102: if (errno != ENOPROTOOPT)
103: warn("mroute");
1.1 itojun 104: return;
105: }
106: switch (mrtproto) {
1.5 deraadt 107: case 0:
1.23 ! rzalamen 108: break;
1.5 deraadt 109: default:
110: printf("IPv6 multicast routing protocol %u, unknown\n",
1.6 deraadt 111: mrtproto);
1.5 deraadt 112: return;
1.1 itojun 113: }
114:
115: saved_nflag = nflag;
116: nflag = 1;
117:
1.17 claudio 118: mib[3] = IPV6CTL_MRTMIF;
119: needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);
120: nummifs = needed / sizeof(*mif);
121: mif = (struct mif6info *)buf;
122: if (nummifs)
123: maxmif = mif[nummifs - 1].m6_mifi;
124:
1.1 itojun 125: banner_printed = 0;
1.17 claudio 126: for (mifi = 0; mifi < nummifs; ++mifi, ++mif) {
1.1 itojun 127: char ifname[IFNAMSIZ];
128:
1.17 claudio 129: if (mif->m6_ifindex == 0)
1.1 itojun 130: continue;
131:
132: if (!banner_printed) {
133: printf("\nIPv6 Multicast Interface Table\n"
1.5 deraadt 134: " Mif Rate PhyIF "
135: "Pkts-In Pkts-Out\n");
1.1 itojun 136: banner_printed = 1;
137: }
138:
139: printf(" %2u %4d",
1.17 claudio 140: mif->m6_mifi, mif->m6_rate_limit);
141: printf(" %5s", (mif->m6_flags & MIFF_REGISTER) ?
142: "reg0" : if_indextoname(mif->m6_ifindex, ifname));
1.1 itojun 143:
1.17 claudio 144: printf(" %9llu %9llu\n", mif->m6_pkt_in, mif->m6_pkt_out);
1.1 itojun 145: }
146: if (!banner_printed)
1.10 deraadt 147: printf("IPv6 Multicast Interface Table is empty\n");
1.1 itojun 148:
1.17 claudio 149: mib[3] = IPV6CTL_MRTMFC;
150: needed = get_sysctl(mib, sizeof(mib) / sizeof(mib[0]), &buf);
151: nummfcs = needed / sizeof(*mfc);
152: mfc = (struct mf6cinfo *)buf;
153:
1.1 itojun 154: banner_printed = 0;
1.17 claudio 155: for (mfci = 0; mfci < nummfcs; ++mfci, ++mfc) {
156: if (!banner_printed) {
157: printf("\nIPv6 Multicast Forwarding Cache\n");
158: printf(" %-*.*s %-*.*s %s",
159: WID_ORG, WID_ORG, "Origin",
160: WID_GRP, WID_GRP, "Group",
161: " Packets Waits In-Mif Out-Mifs\n");
162: banner_printed = 1;
163: }
1.1 itojun 164:
1.17 claudio 165: printf(" %-*.*s", WID_ORG, WID_ORG,
166: routename6(&mfc->mf6c_origin));
167: printf(" %-*.*s", WID_GRP, WID_GRP,
168: routename6(&mfc->mf6c_mcastgrp));
169: fmt_scaled(mfc->mf6c_pkt_cnt, fmtbuf);
170: printf(" %9s", fmtbuf);
171:
172: printf(" %3llu", mfc->mf6c_stall_cnt);
173:
174: if (mfc->mf6c_parent == MF6C_INCOMPLETE_PARENT)
175: printf(" --- ");
176: else
177: printf(" %3d ", mfc->mf6c_parent);
178: for (mifi = 0; mifi <= MAXMIFS; mifi++) {
179: if (IF_ISSET(mifi, &mfc->mf6c_ifset))
180: printf(" %zu", mifi);
1.1 itojun 181: }
1.17 claudio 182: printf("\n");
1.1 itojun 183: }
184: if (!banner_printed)
1.10 deraadt 185: printf("IPv6 Multicast Routing Table is empty");
1.1 itojun 186:
187: printf("\n");
188: nflag = saved_nflag;
1.19 claudio 189:
190: free(buf);
1.1 itojun 191: }
192:
193: void
1.10 deraadt 194: mrt6_stats(void)
1.1 itojun 195: {
1.10 deraadt 196: struct mrt6stat mrt6stat;
197: u_int mrt6proto;
1.13 guenther 198: int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTPROTO };
199: int mib2[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, IPV6CTL_MRTSTATS };
1.10 deraadt 200: size_t len = sizeof(int);
201:
202: if (sysctl(mib, sizeof(mib) / sizeof(mib[0]),
203: &mrt6proto, &len, NULL, 0) == -1) {
204: if (errno != ENOPROTOOPT)
205: warn("mroute");
1.1 itojun 206: return;
207: }
1.10 deraadt 208: switch (mrt6proto) {
1.4 deraadt 209: case 0:
1.10 deraadt 210: printf("no IPv6 multicast routing compiled into this system\n");
211: return;
1.4 deraadt 212: default:
1.5 deraadt 213: printf("IPv6 multicast routing protocol %u, unknown\n",
1.10 deraadt 214: mrt6proto);
1.5 deraadt 215: return;
1.1 itojun 216: }
217:
1.10 deraadt 218: len = sizeof(mrt6stat);
219: if (sysctl(mib2, sizeof(mib2) / sizeof(mib2[0]),
220: &mrt6stat, &len, NULL, 0) == -1) {
221: if (errno != ENOPROTOOPT)
222: warn("mroute");
1.1 itojun 223: return;
224: }
225:
226: printf("multicast forwarding:\n");
1.10 deraadt 227: printf("\t%llu multicast forwarding cache lookup%s\n",
228: mrt6stat.mrt6s_mfc_lookups, plural(mrt6stat.mrt6s_mfc_lookups));
229: printf("\t%llu multicast forwarding cache miss%s\n",
230: mrt6stat.mrt6s_mfc_misses, plurales(mrt6stat.mrt6s_mfc_misses));
231: printf("\t%llu upcall%s to mrouted\n",
232: mrt6stat.mrt6s_upcalls, plural(mrt6stat.mrt6s_upcalls));
233: printf("\t%llu upcall queue overflow%s\n",
234: mrt6stat.mrt6s_upq_ovflw, plural(mrt6stat.mrt6s_upq_ovflw));
235: printf("\t%llu upcall%s dropped due to full socket buffer\n",
236: mrt6stat.mrt6s_upq_sockfull, plural(mrt6stat.mrt6s_upq_sockfull));
237: printf("\t%llu cache cleanup%s\n",
238: mrt6stat.mrt6s_cache_cleanups, plural(mrt6stat.mrt6s_cache_cleanups));
239: printf("\t%llu datagram%s with no route for origin\n",
240: mrt6stat.mrt6s_no_route, plural(mrt6stat.mrt6s_no_route));
241: printf("\t%llu datagram%s arrived with bad tunneling\n",
242: mrt6stat.mrt6s_bad_tunnel, plural(mrt6stat.mrt6s_bad_tunnel));
243: printf("\t%llu datagram%s could not be tunneled\n",
244: mrt6stat.mrt6s_cant_tunnel, plural(mrt6stat.mrt6s_cant_tunnel));
245: printf("\t%llu datagram%s arrived on wrong interface\n",
246: mrt6stat.mrt6s_wrong_if, plural(mrt6stat.mrt6s_wrong_if));
247: printf("\t%llu datagram%s selectively dropped\n",
248: mrt6stat.mrt6s_drop_sel, plural(mrt6stat.mrt6s_drop_sel));
249: printf("\t%llu datagram%s dropped due to queue overflow\n",
250: mrt6stat.mrt6s_q_overflow, plural(mrt6stat.mrt6s_q_overflow));
251: printf("\t%llu datagram%s dropped for being too large\n",
252: mrt6stat.mrt6s_pkt2large, plural(mrt6stat.mrt6s_pkt2large));
1.1 itojun 253: }
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