inet6.c revision 77565
1/*	BSDI inet.c,v 2.3 1995/10/24 02:19:29 prb Exp	*/
2/*
3 * Copyright (c) 1983, 1988, 1993
4 *	The Regents of the University of California.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by the University of
17 *	California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD: head/usr.bin/netstat/inet6.c 77565 2001-06-01 02:28:15Z dd $
35 */
36
37#ifndef lint
38/*
39static char sccsid[] = "@(#)inet6.c	8.4 (Berkeley) 4/20/94";
40*/
41#endif /* not lint */
42
43#ifdef INET6
44#include <sys/param.h>
45#include <sys/socket.h>
46#include <sys/socketvar.h>
47#include <sys/ioctl.h>
48#include <sys/mbuf.h>
49#include <sys/protosw.h>
50
51#include <net/route.h>
52#include <net/if.h>
53#include <net/if_var.h>
54#include <netinet/in.h>
55#include <netinet/ip6.h>
56#include <netinet/icmp6.h>
57#include <netinet/in_systm.h>
58#include <netinet6/in6_pcb.h>
59#include <netinet6/in6_var.h>
60#include <netinet6/ip6_var.h>
61#include <netinet6/pim6_var.h>
62
63#include <arpa/inet.h>
64#include <netdb.h>
65
66#include <stdio.h>
67#include <string.h>
68#include <unistd.h>
69#include "netstat.h"
70
71struct	socket sockb;
72
73char	*inet6name __P((struct in6_addr *));
74void	inet6print __P((struct in6_addr *, int, char *, int));
75
76static char ntop_buf[INET6_ADDRSTRLEN];
77
78static	char *ip6nh[] = {
79	"hop by hop",
80	"ICMP",
81	"IGMP",
82	"#3",
83	"IP",
84	"#5",
85	"TCP",
86	"#7",
87	"#8",
88	"#9",
89	"#10",
90	"#11",
91	"#12",
92	"#13",
93	"#14",
94	"#15",
95	"#16",
96	"UDP",
97	"#18",
98	"#19",
99	"#20",
100	"#21",
101	"IDP",
102	"#23",
103	"#24",
104	"#25",
105	"#26",
106	"#27",
107	"#28",
108	"TP",
109	"#30",
110	"#31",
111	"#32",
112	"#33",
113	"#34",
114	"#35",
115	"#36",
116	"#37",
117	"#38",
118	"#39",
119	"#40",
120	"IP6",
121	"#42",
122	"routing",
123	"fragment",
124	"#45",
125	"#46",
126	"#47",
127	"#48",
128	"#49",
129	"ESP",
130	"AH",
131	"#52",
132	"#53",
133	"#54",
134	"#55",
135	"#56",
136	"#57",
137	"ICMP6",
138	"no next header",
139	"destination option",
140	"#61",
141	"#62",
142	"#63",
143	"#64",
144	"#65",
145	"#66",
146	"#67",
147	"#68",
148	"#69",
149	"#70",
150	"#71",
151	"#72",
152	"#73",
153	"#74",
154	"#75",
155	"#76",
156	"#77",
157	"#78",
158	"#79",
159	"ISOIP",
160	"#81",
161	"#82",
162	"#83",
163	"#84",
164	"#85",
165	"#86",
166	"#87",
167	"#88",
168	"OSPF",
169	"#80",
170	"#91",
171	"#92",
172	"#93",
173	"#94",
174	"#95",
175	"#96",
176	"Ethernet",
177	"#98",
178	"#99",
179	"#100",
180	"#101",
181	"#102",
182	"PIM",
183	"#104",
184	"#105",
185	"#106",
186	"#107",
187	"#108",
188	"#109",
189	"#110",
190	"#111",
191	"#112",
192	"#113",
193	"#114",
194	"#115",
195	"#116",
196	"#117",
197	"#118",
198	"#119",
199	"#120",
200	"#121",
201	"#122",
202	"#123",
203	"#124",
204	"#125",
205	"#126",
206	"#127",
207	"#128",
208	"#129",
209	"#130",
210	"#131",
211	"#132",
212	"#133",
213	"#134",
214	"#135",
215	"#136",
216	"#137",
217	"#138",
218	"#139",
219	"#140",
220	"#141",
221	"#142",
222	"#143",
223	"#144",
224	"#145",
225	"#146",
226	"#147",
227	"#148",
228	"#149",
229	"#150",
230	"#151",
231	"#152",
232	"#153",
233	"#154",
234	"#155",
235	"#156",
236	"#157",
237	"#158",
238	"#159",
239	"#160",
240	"#161",
241	"#162",
242	"#163",
243	"#164",
244	"#165",
245	"#166",
246	"#167",
247	"#168",
248	"#169",
249	"#170",
250	"#171",
251	"#172",
252	"#173",
253	"#174",
254	"#175",
255	"#176",
256	"#177",
257	"#178",
258	"#179",
259	"#180",
260	"#181",
261	"#182",
262	"#183",
263	"#184",
264	"#185",
265	"#186",
266	"#187",
267	"#188",
268	"#189",
269	"#180",
270	"#191",
271	"#192",
272	"#193",
273	"#194",
274	"#195",
275	"#196",
276	"#197",
277	"#198",
278	"#199",
279	"#200",
280	"#201",
281	"#202",
282	"#203",
283	"#204",
284	"#205",
285	"#206",
286	"#207",
287	"#208",
288	"#209",
289	"#210",
290	"#211",
291	"#212",
292	"#213",
293	"#214",
294	"#215",
295	"#216",
296	"#217",
297	"#218",
298	"#219",
299	"#220",
300	"#221",
301	"#222",
302	"#223",
303	"#224",
304	"#225",
305	"#226",
306	"#227",
307	"#228",
308	"#229",
309	"#230",
310	"#231",
311	"#232",
312	"#233",
313	"#234",
314	"#235",
315	"#236",
316	"#237",
317	"#238",
318	"#239",
319	"#240",
320	"#241",
321	"#242",
322	"#243",
323	"#244",
324	"#245",
325	"#246",
326	"#247",
327	"#248",
328	"#249",
329	"#250",
330	"#251",
331	"#252",
332	"#253",
333	"#254",
334	"#255",
335};
336
337/*
338 * Dump IP6 statistics structure.
339 */
340void
341ip6_stats(off, name)
342	u_long off;
343	char *name;
344{
345	struct ip6stat ip6stat;
346	int first, i;
347
348	if (off == 0)
349		return;
350
351	if (kread(off, (char *)&ip6stat, sizeof (ip6stat)))
352		return;
353	printf("%s:\n", name);
354
355#define	p(f, m) if (ip6stat.f || sflag <= 1) \
356    printf(m, (unsigned long long)ip6stat.f, plural(ip6stat.f))
357#define	p1a(f, m) if (ip6stat.f || sflag <= 1) \
358    printf(m, (unsigned long long)ip6stat.f)
359
360	p(ip6s_total, "\t%llu total packet%s received\n");
361	p1a(ip6s_toosmall, "\t%llu with size smaller than minimum\n");
362	p1a(ip6s_tooshort, "\t%llu with data size < data length\n");
363	p1a(ip6s_badoptions, "\t%llu with bad options\n");
364	p1a(ip6s_badvers, "\t%llu with incorrect version number\n");
365	p(ip6s_fragments, "\t%llu fragment%s received\n");
366	p(ip6s_fragdropped, "\t%llu fragment%s dropped (dup or out of space)\n");
367	p(ip6s_fragtimeout, "\t%llu fragment%s dropped after timeout\n");
368	p(ip6s_fragoverflow, "\t%llu fragment%s that exceeded limit\n");
369	p(ip6s_reassembled, "\t%llu packet%s reassembled ok\n");
370	p(ip6s_delivered, "\t%llu packet%s for this host\n");
371	p(ip6s_forward, "\t%llu packet%s forwarded\n");
372	p(ip6s_cantforward, "\t%llu packet%s not forwardable\n");
373	p(ip6s_redirectsent, "\t%llu redirect%s sent\n");
374	p(ip6s_localout, "\t%llu packet%s sent from this host\n");
375	p(ip6s_rawout, "\t%llu packet%s sent with fabricated ip header\n");
376	p(ip6s_odropped, "\t%llu output packet%s dropped due to no bufs, etc.\n");
377	p(ip6s_noroute, "\t%llu output packet%s discarded due to no route\n");
378	p(ip6s_fragmented, "\t%llu output datagram%s fragmented\n");
379	p(ip6s_ofragments, "\t%llu fragment%s created\n");
380	p(ip6s_cantfrag, "\t%llu datagram%s that can't be fragmented\n");
381	p(ip6s_badscope, "\t%llu packet%s that violated scope rules\n");
382	p(ip6s_notmember, "\t%llu multicast packet%s which we don't join\n");
383	for (first = 1, i = 0; i < 256; i++)
384		if (ip6stat.ip6s_nxthist[i] != 0) {
385			if (first) {
386				printf("\tInput histogram:\n");
387				first = 0;
388			}
389			printf("\t\t%s: %llu\n", ip6nh[i],
390			    (unsigned long long)ip6stat.ip6s_nxthist[i]);
391		}
392	printf("\tMbuf statistics:\n");
393	printf("\t\t%llu one mbuf\n", (unsigned long long)ip6stat.ip6s_m1);
394	for (first = 1, i = 0; i < 32; i++) {
395		char ifbuf[IFNAMSIZ];
396		if (ip6stat.ip6s_m2m[i] != 0) {
397			if (first) {
398				printf("\t\ttwo or more mbuf:\n");
399				first = 0;
400			}
401			printf("\t\t\t%s= %llu\n",
402			    if_indextoname(i, ifbuf),
403			    (unsigned long long)ip6stat.ip6s_m2m[i]);
404		}
405	}
406	printf("\t\t%llu one ext mbuf\n",
407	    (unsigned long long)ip6stat.ip6s_mext1);
408	printf("\t\t%llu two or more ext mbuf\n",
409	    (unsigned long long)ip6stat.ip6s_mext2m);
410	p(ip6s_exthdrtoolong,
411	    "\t%llu packet%s whose headers are not continuous\n");
412	p(ip6s_nogif, "\t%llu tunneling packet%s that can't find gif\n");
413	p(ip6s_toomanyhdr,
414	    "\t%llu packet%s discarded due to too may headers\n");
415
416	/* for debugging source address selection */
417#define PRINT_SCOPESTAT(s,i) do {\
418		switch(i) { /* XXX hardcoding in each case */\
419		case 1:\
420			p(s, "\t\t%llu node-local%s\n");\
421			break;\
422		case 2:\
423			p(s,"\t\t%llu link-local%s\n");\
424			break;\
425		case 5:\
426			p(s,"\t\t%llu site-local%s\n");\
427			break;\
428		case 14:\
429			p(s,"\t\t%llu global%s\n");\
430			break;\
431		default:\
432			printf("\t\t%llu addresses scope=%x\n",\
433			    (unsigned long long)ip6stat.s, i);\
434		}\
435	} while (0);
436
437	p(ip6s_sources_none,
438	  "\t%llu failure%s of source address selection\n");
439	for (first = 1, i = 0; i < 16; i++) {
440		if (ip6stat.ip6s_sources_sameif[i]) {
441			if (first) {
442				printf("\tsource addresses on an outgoing I/F\n");
443				first = 0;
444			}
445			PRINT_SCOPESTAT(ip6s_sources_sameif[i], i);
446		}
447	}
448	for (first = 1, i = 0; i < 16; i++) {
449		if (ip6stat.ip6s_sources_otherif[i]) {
450			if (first) {
451				printf("\tsource addresses on a non-outgoing I/F\n");
452				first = 0;
453			}
454			PRINT_SCOPESTAT(ip6s_sources_otherif[i], i);
455		}
456	}
457	for (first = 1, i = 0; i < 16; i++) {
458		if (ip6stat.ip6s_sources_samescope[i]) {
459			if (first) {
460				printf("\tsource addresses of same scope\n");
461				first = 0;
462			}
463			PRINT_SCOPESTAT(ip6s_sources_samescope[i], i);
464		}
465	}
466	for (first = 1, i = 0; i < 16; i++) {
467		if (ip6stat.ip6s_sources_otherscope[i]) {
468			if (first) {
469				printf("\tsource addresses of a different scope\n");
470				first = 0;
471			}
472			PRINT_SCOPESTAT(ip6s_sources_otherscope[i], i);
473		}
474	}
475	for (first = 1, i = 0; i < 16; i++) {
476		if (ip6stat.ip6s_sources_deprecated[i]) {
477			if (first) {
478				printf("\tdeprecated source addresses\n");
479				first = 0;
480			}
481			PRINT_SCOPESTAT(ip6s_sources_deprecated[i], i);
482		}
483	}
484
485	p1a(ip6s_forward_cachehit, "\t%llu forward cache hit\n");
486	p1a(ip6s_forward_cachemiss, "\t%llu forward cache miss\n");
487#undef p
488#undef p1a
489}
490
491/*
492 * Dump IPv6 per-interface statistics based on RFC 2465.
493 */
494void
495ip6_ifstats(ifname)
496	char *ifname;
497{
498	struct in6_ifreq ifr;
499	int s;
500#define	p(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
501    printf(m, (unsigned long long)ifr.ifr_ifru.ifru_stat.f, plural(ifr.ifr_ifru.ifru_stat.f))
502#define	p_5(f, m) if (ifr.ifr_ifru.ifru_stat.f || sflag <= 1) \
503    printf(m, (unsigned long long)ip6stat.f)
504
505	if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
506		perror("Warning: socket(AF_INET6)");
507		return;
508	}
509
510	strcpy(ifr.ifr_name, ifname);
511	printf("ip6 on %s:\n", ifr.ifr_name);
512
513	if (ioctl(s, SIOCGIFSTAT_IN6, (char *)&ifr) < 0) {
514		perror("Warning: ioctl(SIOCGIFSTAT_IN6)");
515		goto end;
516	}
517
518	p(ifs6_in_receive, "\t%llu total input datagram%s\n");
519	p(ifs6_in_hdrerr, "\t%llu datagram%s with invalid header received\n");
520	p(ifs6_in_toobig, "\t%llu datagram%s exceeded MTU received\n");
521	p(ifs6_in_noroute, "\t%llu datagram%s with no route received\n");
522	p(ifs6_in_addrerr, "\t%llu datagram%s with invalid dst received\n");
523	p(ifs6_in_protounknown, "\t%llu datagram%s with unknown proto received\n");
524	p(ifs6_in_truncated, "\t%llu truncated datagram%s received\n");
525	p(ifs6_in_discard, "\t%llu input datagram%s discarded\n");
526	p(ifs6_in_deliver,
527	  "\t%llu datagram%s delivered to an upper layer protocol\n");
528	p(ifs6_out_forward, "\t%llu datagram%s forwarded to this interface\n");
529	p(ifs6_out_request,
530	  "\t%llu datagram%s sent from an upper layer protocol\n");
531	p(ifs6_out_discard, "\t%llu total discarded output datagram%s\n");
532	p(ifs6_out_fragok, "\t%llu output datagram%s fragmented\n");
533	p(ifs6_out_fragfail, "\t%llu output datagram%s failed on fragment\n");
534	p(ifs6_out_fragcreat, "\t%llu output datagram%s succeeded on fragment\n");
535	p(ifs6_reass_reqd, "\t%llu incoming datagram%s fragmented\n");
536	p(ifs6_reass_ok, "\t%llu datagram%s reassembled\n");
537	p(ifs6_reass_fail, "\t%llu datagram%s failed on reassembling\n");
538	p(ifs6_in_mcast, "\t%llu multicast datagram%s received\n");
539	p(ifs6_out_mcast, "\t%llu multicast datagram%s sent\n");
540
541  end:
542	close(s);
543
544#undef p
545#undef p_5
546}
547
548static	char *icmp6names[] = {
549	"#0",
550	"unreach",
551	"packet too big",
552	"time exceed",
553	"parameter problem",
554	"#5",
555	"#6",
556	"#7",
557	"#8",
558	"#9",
559	"#10",
560	"#11",
561	"#12",
562	"#13",
563	"#14",
564	"#15",
565	"#16",
566	"#17",
567	"#18",
568	"#19",
569	"#20",
570	"#21",
571	"#22",
572	"#23",
573	"#24",
574	"#25",
575	"#26",
576	"#27",
577	"#28",
578	"#29",
579	"#30",
580	"#31",
581	"#32",
582	"#33",
583	"#34",
584	"#35",
585	"#36",
586	"#37",
587	"#38",
588	"#39",
589	"#40",
590	"#41",
591	"#42",
592	"#43",
593	"#44",
594	"#45",
595	"#46",
596	"#47",
597	"#48",
598	"#49",
599	"#50",
600	"#51",
601	"#52",
602	"#53",
603	"#54",
604	"#55",
605	"#56",
606	"#57",
607	"#58",
608	"#59",
609	"#60",
610	"#61",
611	"#62",
612	"#63",
613	"#64",
614	"#65",
615	"#66",
616	"#67",
617	"#68",
618	"#69",
619	"#70",
620	"#71",
621	"#72",
622	"#73",
623	"#74",
624	"#75",
625	"#76",
626	"#77",
627	"#78",
628	"#79",
629	"#80",
630	"#81",
631	"#82",
632	"#83",
633	"#84",
634	"#85",
635	"#86",
636	"#87",
637	"#88",
638	"#89",
639	"#80",
640	"#91",
641	"#92",
642	"#93",
643	"#94",
644	"#95",
645	"#96",
646	"#97",
647	"#98",
648	"#99",
649	"#100",
650	"#101",
651	"#102",
652	"#103",
653	"#104",
654	"#105",
655	"#106",
656	"#107",
657	"#108",
658	"#109",
659	"#110",
660	"#111",
661	"#112",
662	"#113",
663	"#114",
664	"#115",
665	"#116",
666	"#117",
667	"#118",
668	"#119",
669	"#120",
670	"#121",
671	"#122",
672	"#123",
673	"#124",
674	"#125",
675	"#126",
676	"#127",
677	"echo",
678	"echo reply",
679	"multicast listener query",
680	"multicast listener report",
681	"multicast listener done",
682	"router solicitation",
683	"router advertisement",
684	"neighbor solicitation",
685	"neighbor advertisement",
686	"redirect",
687	"router renumbering",
688	"node information request",
689	"node information reply",
690	"#141",
691	"#142",
692	"#143",
693	"#144",
694	"#145",
695	"#146",
696	"#147",
697	"#148",
698	"#149",
699	"#150",
700	"#151",
701	"#152",
702	"#153",
703	"#154",
704	"#155",
705	"#156",
706	"#157",
707	"#158",
708	"#159",
709	"#160",
710	"#161",
711	"#162",
712	"#163",
713	"#164",
714	"#165",
715	"#166",
716	"#167",
717	"#168",
718	"#169",
719	"#170",
720	"#171",
721	"#172",
722	"#173",
723	"#174",
724	"#175",
725	"#176",
726	"#177",
727	"#178",
728	"#179",
729	"#180",
730	"#181",
731	"#182",
732	"#183",
733	"#184",
734	"#185",
735	"#186",
736	"#187",
737	"#188",
738	"#189",
739	"#180",
740	"#191",
741	"#192",
742	"#193",
743	"#194",
744	"#195",
745	"#196",
746	"#197",
747	"#198",
748	"#199",
749	"#200",
750	"#201",
751	"#202",
752	"#203",
753	"#204",
754	"#205",
755	"#206",
756	"#207",
757	"#208",
758	"#209",
759	"#210",
760	"#211",
761	"#212",
762	"#213",
763	"#214",
764	"#215",
765	"#216",
766	"#217",
767	"#218",
768	"#219",
769	"#220",
770	"#221",
771	"#222",
772	"#223",
773	"#224",
774	"#225",
775	"#226",
776	"#227",
777	"#228",
778	"#229",
779	"#230",
780	"#231",
781	"#232",
782	"#233",
783	"#234",
784	"#235",
785	"#236",
786	"#237",
787	"#238",
788	"#239",
789	"#240",
790	"#241",
791	"#242",
792	"#243",
793	"#244",
794	"#245",
795	"#246",
796	"#247",
797	"#248",
798	"#249",
799	"#250",
800	"#251",
801	"#252",
802	"#253",
803	"#254",
804	"#255",
805};
806
807/*
808 * Dump ICMP6 statistics.
809 */
810void
811icmp6_stats(off, name)
812	u_long off;
813	char *name;
814{
815	struct icmp6stat icmp6stat;
816	register int i, first;
817
818	if (off == 0)
819		return;
820	kread(off, (char *)&icmp6stat, sizeof (icmp6stat));
821	printf("%s:\n", name);
822
823#define	p(f, m) if (icmp6stat.f || sflag <= 1) \
824    printf(m, (unsigned long long)icmp6stat.f, plural(icmp6stat.f))
825#define p_5(f, m) printf(m, (unsigned long long)icmp6stat.f)
826
827	p(icp6s_error, "\t%llu call%s to icmp_error\n");
828	p(icp6s_canterror,
829	    "\t%llu error%s not generated because old message was icmp error or so\n");
830	p(icp6s_toofreq,
831	  "\t%llu error%s not generated because rate limitation\n");
832	for (first = 1, i = 0; i < 256; i++)
833		if (icmp6stat.icp6s_outhist[i] != 0) {
834			if (first) {
835				printf("\tOutput histogram:\n");
836				first = 0;
837			}
838			printf("\t\t%s: %llu\n", icmp6names[i],
839			    (unsigned long long)icmp6stat.icp6s_outhist[i]);
840		}
841	p(icp6s_badcode, "\t%llu message%s with bad code fields\n");
842	p(icp6s_tooshort, "\t%llu message%s < minimum length\n");
843	p(icp6s_checksum, "\t%llu bad checksum%s\n");
844	p(icp6s_badlen, "\t%llu message%s with bad length\n");
845	for (first = 1, i = 0; i < ICMP6_MAXTYPE; i++)
846		if (icmp6stat.icp6s_inhist[i] != 0) {
847			if (first) {
848				printf("\tInput histogram:\n");
849				first = 0;
850			}
851			printf("\t\t%s: %llu\n", icmp6names[i],
852			    (unsigned long long)icmp6stat.icp6s_inhist[i]);
853		}
854	printf("\tHistogram of error messages to be generated:\n");
855	p_5(icp6s_odst_unreach_noroute, "\t\t%llu no route\n");
856	p_5(icp6s_odst_unreach_admin, "\t\t%llu administratively prohibited\n");
857	p_5(icp6s_odst_unreach_beyondscope, "\t\t%llu beyond scope\n");
858	p_5(icp6s_odst_unreach_addr, "\t\t%llu address unreachable\n");
859	p_5(icp6s_odst_unreach_noport, "\t\t%llu port unreachable\n");
860	p_5(icp6s_opacket_too_big, "\t\t%llu packet too big\n");
861	p_5(icp6s_otime_exceed_transit, "\t\t%llu time exceed transit\n");
862	p_5(icp6s_otime_exceed_reassembly, "\t\t%llu time exceed reassembly\n");
863	p_5(icp6s_oparamprob_header, "\t\t%llu erroneous header field\n");
864	p_5(icp6s_oparamprob_nextheader, "\t\t%llu unrecognized next header\n");
865	p_5(icp6s_oparamprob_option, "\t\t%llu unrecognized option\n");
866	p_5(icp6s_oredirect, "\t\t%llu redirect\n");
867	p_5(icp6s_ounknown, "\t\t%llu unknown\n");
868
869	p(icp6s_reflect, "\t%llu message response%s generated\n");
870	p(icp6s_nd_toomanyopt, "\t%llu message%s with too many ND options\n");
871#undef p
872#undef p_5
873}
874
875/*
876 * Dump ICMPv6 per-interface statistics based on RFC 2466.
877 */
878void
879icmp6_ifstats(ifname)
880	char *ifname;
881{
882	struct in6_ifreq ifr;
883	int s;
884#define	p(f, m) if (ifr.ifr_ifru.ifru_icmp6stat.f || sflag <= 1) \
885    printf(m, (unsigned long long)ifr.ifr_ifru.ifru_icmp6stat.f, plural(ifr.ifr_ifru.ifru_icmp6stat.f))
886
887	if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
888		perror("Warning: socket(AF_INET6)");
889		return;
890	}
891
892	strcpy(ifr.ifr_name, ifname);
893	printf("icmp6 on %s:\n", ifr.ifr_name);
894
895	if (ioctl(s, SIOCGIFSTAT_ICMP6, (char *)&ifr) < 0) {
896		perror("Warning: ioctl(SIOCGIFSTAT_ICMP6)");
897		goto end;
898	}
899
900	p(ifs6_in_msg, "\t%llu total input message%s\n");
901	p(ifs6_in_error, "\t%llu total input error message%s\n");
902	p(ifs6_in_dstunreach, "\t%llu input destination unreachable error%s\n");
903	p(ifs6_in_adminprohib, "\t%llu input administratively prohibited error%s\n");
904	p(ifs6_in_timeexceed, "\t%llu input time exceeded error%s\n");
905	p(ifs6_in_paramprob, "\t%llu input parameter problem error%s\n");
906	p(ifs6_in_pkttoobig, "\t%llu input packet too big error%s\n");
907	p(ifs6_in_echo, "\t%llu input echo request%s\n");
908	p(ifs6_in_echoreply, "\t%llu input echo reply%s\n");
909	p(ifs6_in_routersolicit, "\t%llu input router solicitation%s\n");
910	p(ifs6_in_routeradvert, "\t%llu input router advertisement%s\n");
911	p(ifs6_in_neighborsolicit, "\t%llu input neighbor solicitation%s\n");
912	p(ifs6_in_neighboradvert, "\t%llu input neighbor advertisement%s\n");
913	p(ifs6_in_redirect, "\t%llu input redirect%s\n");
914	p(ifs6_in_mldquery, "\t%llu input MLD query%s\n");
915	p(ifs6_in_mldreport, "\t%llu input MLD report%s\n");
916	p(ifs6_in_mlddone, "\t%llu input MLD done%s\n");
917
918	p(ifs6_out_msg, "\t%llu total output message%s\n");
919	p(ifs6_out_error, "\t%llu total output error message%s\n");
920	p(ifs6_out_dstunreach, "\t%llu output destination unreachable error%s\n");
921	p(ifs6_out_adminprohib, "\t%llu output administratively prohibited error%s\n");
922	p(ifs6_out_timeexceed, "\t%llu output time exceeded error%s\n");
923	p(ifs6_out_paramprob, "\t%llu output parameter problem error%s\n");
924	p(ifs6_out_pkttoobig, "\t%llu output packet too big error%s\n");
925	p(ifs6_out_echo, "\t%llu output echo request%s\n");
926	p(ifs6_out_echoreply, "\t%llu output echo reply%s\n");
927	p(ifs6_out_routersolicit, "\t%llu output router solicitation%s\n");
928	p(ifs6_out_routeradvert, "\t%llu output router advertisement%s\n");
929	p(ifs6_out_neighborsolicit, "\t%llu output neighbor solicitation%s\n");
930	p(ifs6_out_neighboradvert, "\t%llu output neighbor advertisement%s\n");
931	p(ifs6_out_redirect, "\t%llu output redirect%s\n");
932	p(ifs6_out_mldquery, "\t%llu output MLD query%s\n");
933	p(ifs6_out_mldreport, "\t%llu output MLD report%s\n");
934	p(ifs6_out_mlddone, "\t%llu output MLD done%s\n");
935
936  end:
937	close(s);
938#undef p
939}
940
941/*
942 * Dump PIM statistics structure.
943 */
944void
945pim6_stats(off, name)
946	u_long off;
947	char *name;
948{
949	struct pim6stat pim6stat;
950
951	if (off == 0)
952		return;
953	kread(off, (char *)&pim6stat, sizeof(pim6stat));
954	printf("%s:\n", name);
955
956#define	p(f, m) if (pim6stat.f || sflag <= 1) \
957    printf(m, (unsigned long long)pim6stat.f, plural(pim6stat.f))
958	p(pim6s_rcv_total, "\t%llu message%s received\n");
959	p(pim6s_rcv_tooshort, "\t%llu message%s received with too few bytes\n");
960	p(pim6s_rcv_badsum, "\t%llu message%s received with bad checksum\n");
961	p(pim6s_rcv_badversion, "\t%llu message%s received with bad version\n");
962	p(pim6s_rcv_registers, "\t%llu register%s received\n");
963	p(pim6s_rcv_badregisters, "\t%llu bad register%s received\n");
964	p(pim6s_snd_registers, "\t%llu register%s sent\n");
965#undef p
966}
967
968/*
969 * Pretty print an Internet address (net address + port).
970 * If the nflag was specified, use numbers instead of names.
971 */
972#define GETSERVBYPORT6(port, proto, ret)\
973{\
974	if (strcmp((proto), "tcp6") == 0)\
975		(ret) = getservbyport((int)(port), "tcp");\
976	else if (strcmp((proto), "udp6") == 0)\
977		(ret) = getservbyport((int)(port), "udp");\
978	else\
979		(ret) = getservbyport((int)(port), (proto));\
980};
981
982void
983inet6print(in6, port, proto, numeric)
984	register struct in6_addr *in6;
985	int port;
986	char *proto;
987	int numeric;
988{
989	struct servent *sp = 0;
990	char line[80], *cp;
991	int width;
992
993	sprintf(line, "%.*s.", lflag ? 39 :
994		(Aflag && !numeric) ? 12 : 16, inet6name(in6));
995	cp = index(line, '\0');
996	if (!numeric && port)
997		GETSERVBYPORT6(port, proto, sp);
998	if (sp || port == 0)
999		sprintf(cp, "%.8s", sp ? sp->s_name : "*");
1000	else
1001		sprintf(cp, "%d", ntohs((u_short)port));
1002	width = lflag ? 45 : Aflag ? 18 : 22;
1003	printf("%-*.*s ", width, width, line);
1004}
1005
1006/*
1007 * Construct an Internet address representation.
1008 * If the nflag has been supplied, give
1009 * numeric value, otherwise try for symbolic name.
1010 */
1011
1012char *
1013inet6name(in6p)
1014	struct in6_addr *in6p;
1015{
1016	register char *cp;
1017	static char line[50];
1018	struct hostent *hp;
1019	static char domain[MAXHOSTNAMELEN];
1020	static int first = 1;
1021
1022	if (first && !nflag) {
1023		first = 0;
1024		if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
1025		    (cp = index(domain, '.')))
1026			(void) strcpy(domain, cp + 1);
1027		else
1028			domain[0] = 0;
1029	}
1030	cp = 0;
1031	if (!nflag && !IN6_IS_ADDR_UNSPECIFIED(in6p)) {
1032		hp = gethostbyaddr((char *)in6p, sizeof(*in6p), AF_INET6);
1033		if (hp) {
1034			if ((cp = index(hp->h_name, '.')) &&
1035			    !strcmp(cp + 1, domain))
1036				*cp = 0;
1037			cp = hp->h_name;
1038		}
1039	}
1040	if (IN6_IS_ADDR_UNSPECIFIED(in6p))
1041		strcpy(line, "*");
1042	else if (cp)
1043		strcpy(line, cp);
1044	else
1045		sprintf(line, "%s",
1046			inet_ntop(AF_INET6, (void *)in6p, ntop_buf,
1047				sizeof(ntop_buf)));
1048	return (line);
1049}
1050#endif /*INET6*/
1051