in6_proto.c revision 197138
1/*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	$KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $
30 */
31
32/*-
33 * Copyright (c) 1982, 1986, 1993
34 *	The Regents of the University of California.  All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 *    notice, this list of conditions and the following disclaimer in the
43 *    documentation and/or other materials provided with the distribution.
44 * 4. Neither the name of the University nor the names of its contributors
45 *    may be used to endorse or promote products derived from this software
46 *    without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 *	@(#)in_proto.c	8.1 (Berkeley) 6/10/93
61 */
62
63#include <sys/cdefs.h>
64__FBSDID("$FreeBSD: head/sys/netinet6/in6_proto.c 197138 2009-09-12 22:08:20Z hrs $");
65
66#include "opt_inet.h"
67#include "opt_inet6.h"
68#include "opt_ipsec.h"
69#include "opt_ipstealth.h"
70#include "opt_carp.h"
71#include "opt_sctp.h"
72#include "opt_mpath.h"
73
74#include <sys/param.h>
75#include <sys/socket.h>
76#include <sys/socketvar.h>
77#include <sys/proc.h>
78#include <sys/protosw.h>
79#include <sys/jail.h>
80#include <sys/kernel.h>
81#include <sys/domain.h>
82#include <sys/mbuf.h>
83#include <sys/systm.h>
84#include <sys/sysctl.h>
85
86#include <net/if.h>
87#include <net/radix.h>
88#include <net/route.h>
89#ifdef RADIX_MPATH
90#include <net/radix_mpath.h>
91#endif
92
93#include <netinet/in.h>
94#include <netinet/in_systm.h>
95#include <netinet/in_var.h>
96#include <netinet/ip_encap.h>
97#include <netinet/ip.h>
98#include <netinet/ip_var.h>
99#include <netinet/ip6.h>
100#include <netinet6/ip6_var.h>
101#include <netinet/icmp6.h>
102
103#include <netinet/tcp.h>
104#include <netinet/tcp_timer.h>
105#include <netinet/tcp_var.h>
106#include <netinet/udp.h>
107#include <netinet/udp_var.h>
108#include <netinet6/tcp6_var.h>
109#include <netinet6/raw_ip6.h>
110#include <netinet6/udp6_var.h>
111#include <netinet6/pim6_var.h>
112#include <netinet6/nd6.h>
113
114#ifdef DEV_CARP
115#include <netinet/ip_carp.h>
116#endif
117
118#ifdef SCTP
119#include <netinet/in_pcb.h>
120#include <netinet/sctp_pcb.h>
121#include <netinet/sctp.h>
122#include <netinet/sctp_var.h>
123#include <netinet6/sctp6_var.h>
124#endif /* SCTP */
125
126#ifdef IPSEC
127#include <netipsec/ipsec.h>
128#include <netipsec/ipsec6.h>
129#endif /* IPSEC */
130
131#include <netinet6/ip6protosw.h>
132
133/*
134 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
135 */
136
137extern	struct domain inet6domain;
138static	struct pr_usrreqs nousrreqs;
139
140#define PR_LISTEN	0
141#define PR_ABRTACPTDIS	0
142
143struct ip6protosw inet6sw[] = {
144{
145	.pr_type =		0,
146	.pr_domain =		&inet6domain,
147	.pr_protocol =		IPPROTO_IPV6,
148	.pr_init =		ip6_init,
149#ifdef VIMAGE
150	.pr_destroy =		ip6_destroy,
151#endif
152	.pr_slowtimo =		frag6_slowtimo,
153	.pr_drain =		frag6_drain,
154	.pr_usrreqs =		&nousrreqs,
155},
156{
157	.pr_type =		SOCK_DGRAM,
158	.pr_domain =		&inet6domain,
159	.pr_protocol =		IPPROTO_UDP,
160	.pr_flags =		PR_ATOMIC|PR_ADDR,
161	.pr_input =		udp6_input,
162	.pr_ctlinput =		udp6_ctlinput,
163	.pr_ctloutput =		ip6_ctloutput,
164	.pr_usrreqs =		&udp6_usrreqs,
165},
166{
167	.pr_type =		SOCK_STREAM,
168	.pr_domain =		&inet6domain,
169	.pr_protocol =		IPPROTO_TCP,
170	.pr_flags =		PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
171	.pr_input =		tcp6_input,
172	.pr_ctlinput =		tcp6_ctlinput,
173	.pr_ctloutput =		tcp_ctloutput,
174#ifndef INET	/* don't call initialization and timeout routines twice */
175	.pr_init =		tcp_init,
176	.pr_fasttimo =		tcp_fasttimo,
177	.pr_slowtimo =		tcp_slowtimo,
178#endif
179	.pr_drain =		tcp_drain,
180	.pr_usrreqs =		&tcp6_usrreqs,
181},
182#ifdef SCTP
183{
184	.pr_type =	SOCK_DGRAM,
185	.pr_domain =	&inet6domain,
186        .pr_protocol =	IPPROTO_SCTP,
187        .pr_flags =	PR_WANTRCVD,
188        .pr_input =	sctp6_input,
189        .pr_ctlinput =  sctp6_ctlinput,
190        .pr_ctloutput = sctp_ctloutput,
191        .pr_drain =	sctp_drain,
192        .pr_usrreqs =	&sctp6_usrreqs
193},
194{
195	.pr_type =	SOCK_SEQPACKET,
196	.pr_domain =	&inet6domain,
197        .pr_protocol =	IPPROTO_SCTP,
198        .pr_flags =	PR_WANTRCVD,
199        .pr_input =	sctp6_input,
200        .pr_ctlinput =  sctp6_ctlinput,
201        .pr_ctloutput = sctp_ctloutput,
202        .pr_drain =	sctp_drain,
203        .pr_usrreqs =	&sctp6_usrreqs
204},
205
206{
207	.pr_type =	SOCK_STREAM,
208	.pr_domain =	&inet6domain,
209        .pr_protocol =	IPPROTO_SCTP,
210        .pr_flags =	PR_WANTRCVD,
211        .pr_input =	sctp6_input,
212        .pr_ctlinput =  sctp6_ctlinput,
213        .pr_ctloutput = sctp_ctloutput,
214        .pr_drain =	sctp_drain,
215        .pr_usrreqs =	&sctp6_usrreqs
216},
217#endif /* SCTP */
218{
219	.pr_type =		SOCK_RAW,
220	.pr_domain =		&inet6domain,
221	.pr_protocol =		IPPROTO_RAW,
222	.pr_flags =		PR_ATOMIC|PR_ADDR,
223	.pr_input =		rip6_input,
224	.pr_output =		rip6_output,
225	.pr_ctlinput =		rip6_ctlinput,
226	.pr_ctloutput =		rip6_ctloutput,
227	.pr_usrreqs =		&rip6_usrreqs
228},
229{
230	.pr_type =		SOCK_RAW,
231	.pr_domain =		&inet6domain,
232	.pr_protocol =		IPPROTO_ICMPV6,
233	.pr_flags =		PR_ATOMIC|PR_ADDR|PR_LASTHDR,
234	.pr_input =		icmp6_input,
235	.pr_output =		rip6_output,
236	.pr_ctlinput =		rip6_ctlinput,
237	.pr_ctloutput =		rip6_ctloutput,
238	.pr_init =		icmp6_init,
239	.pr_fasttimo =		icmp6_fasttimo,
240	.pr_slowtimo =		icmp6_slowtimo,
241	.pr_usrreqs =		&rip6_usrreqs
242},
243{
244	.pr_type =		SOCK_RAW,
245	.pr_domain =		&inet6domain,
246	.pr_protocol =		IPPROTO_DSTOPTS,
247	.pr_flags =		PR_ATOMIC|PR_ADDR,
248	.pr_input =		dest6_input,
249	.pr_usrreqs =		&nousrreqs
250},
251{
252	.pr_type =		SOCK_RAW,
253	.pr_domain =		&inet6domain,
254	.pr_protocol =		IPPROTO_ROUTING,
255	.pr_flags =		PR_ATOMIC|PR_ADDR,
256	.pr_input =		route6_input,
257	.pr_usrreqs =		&nousrreqs
258},
259{
260	.pr_type =		SOCK_RAW,
261	.pr_domain =		&inet6domain,
262	.pr_protocol =		IPPROTO_FRAGMENT,
263	.pr_flags =		PR_ATOMIC|PR_ADDR,
264	.pr_input =		frag6_input,
265	.pr_usrreqs =		&nousrreqs
266},
267#ifdef IPSEC
268{
269	.pr_type =		SOCK_RAW,
270	.pr_domain =		&inet6domain,
271	.pr_protocol =		IPPROTO_AH,
272	.pr_flags =		PR_ATOMIC|PR_ADDR,
273	.pr_input =		ipsec6_common_input,
274	.pr_usrreqs =		&nousrreqs,
275},
276{
277	.pr_type =		SOCK_RAW,
278	.pr_domain =		&inet6domain,
279	.pr_protocol =		IPPROTO_ESP,
280	.pr_flags =		PR_ATOMIC|PR_ADDR,
281        .pr_input =		ipsec6_common_input,
282	.pr_ctlinput =		esp6_ctlinput,
283	.pr_usrreqs =		&nousrreqs,
284},
285{
286	.pr_type =		SOCK_RAW,
287	.pr_domain =		&inet6domain,
288	.pr_protocol =		IPPROTO_IPCOMP,
289	.pr_flags =		PR_ATOMIC|PR_ADDR,
290        .pr_input =		ipsec6_common_input,
291	.pr_usrreqs =		&nousrreqs,
292},
293#endif /* IPSEC */
294#ifdef INET
295{
296	.pr_type =		SOCK_RAW,
297	.pr_domain =		&inet6domain,
298	.pr_protocol =		IPPROTO_IPV4,
299	.pr_flags =		PR_ATOMIC|PR_ADDR|PR_LASTHDR,
300	.pr_input =		encap6_input,
301	.pr_output =		rip6_output,
302	.pr_ctloutput =		rip6_ctloutput,
303	.pr_init =		encap_init,
304	.pr_usrreqs =		&rip6_usrreqs
305},
306#endif /* INET */
307{
308	.pr_type =		SOCK_RAW,
309	.pr_domain =		&inet6domain,
310	.pr_protocol =		IPPROTO_IPV6,
311	.pr_flags =		PR_ATOMIC|PR_ADDR|PR_LASTHDR,
312	.pr_input =		encap6_input,
313	.pr_output =		rip6_output,
314	.pr_ctloutput =		rip6_ctloutput,
315	.pr_init =		encap_init,
316	.pr_usrreqs =		&rip6_usrreqs
317},
318{
319	.pr_type =		SOCK_RAW,
320	.pr_domain =		&inet6domain,
321	.pr_protocol =		IPPROTO_PIM,
322	.pr_flags =		PR_ATOMIC|PR_ADDR|PR_LASTHDR,
323	.pr_input =		encap6_input,
324	.pr_output =		rip6_output,
325	.pr_ctloutput =		rip6_ctloutput,
326	.pr_usrreqs =		&rip6_usrreqs
327},
328#ifdef DEV_CARP
329{
330	.pr_type =		SOCK_RAW,
331	.pr_domain =		&inet6domain,
332	.pr_protocol =		IPPROTO_CARP,
333	.pr_flags =		PR_ATOMIC|PR_ADDR,
334	.pr_input =		carp6_input,
335	.pr_output =		rip6_output,
336	.pr_ctloutput =		rip6_ctloutput,
337	.pr_usrreqs =		&rip6_usrreqs
338},
339#endif /* DEV_CARP */
340/* raw wildcard */
341{
342	.pr_type =		SOCK_RAW,
343	.pr_domain =		&inet6domain,
344	.pr_flags =		PR_ATOMIC|PR_ADDR,
345	.pr_input =		rip6_input,
346	.pr_output =		rip6_output,
347	.pr_ctloutput =		rip6_ctloutput,
348	.pr_usrreqs =		&rip6_usrreqs
349},
350};
351
352extern int in6_inithead(void **, int);
353#ifdef VIMAGE
354extern int in6_detachhead(void **, int);
355#endif
356
357struct domain inet6domain = {
358	.dom_family =		AF_INET6,
359	.dom_name =		"internet6",
360	.dom_protosw =		(struct protosw *)inet6sw,
361	.dom_protoswNPROTOSW =	(struct protosw *)
362				&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
363#ifdef RADIX_MPATH
364	.dom_rtattach =		rn6_mpath_inithead,
365#else
366	.dom_rtattach =		in6_inithead,
367#endif
368#ifdef VIMAGE
369	.dom_rtdetach =		in6_detachhead,
370#endif
371	.dom_rtoffset =		offsetof(struct sockaddr_in6, sin6_addr) << 3,
372	.dom_maxrtkey =		sizeof(struct sockaddr_in6),
373	.dom_ifattach =		in6_domifattach,
374	.dom_ifdetach =		in6_domifdetach
375};
376
377VNET_DOMAIN_SET(inet6);
378
379/*
380 * Internet configuration info
381 */
382VNET_DEFINE(int, ip6_forwarding);
383VNET_DEFINE(int, ip6_sendredirects);
384VNET_DEFINE(int, ip6_defhlim);
385VNET_DEFINE(int, ip6_defmcasthlim);
386VNET_DEFINE(int, ip6_accept_rtadv);
387VNET_DEFINE(int, ip6_maxfragpackets);
388VNET_DEFINE(int, ip6_maxfrags);
389VNET_DEFINE(int, ip6_log_interval);
390VNET_DEFINE(int, ip6_hdrnestlimit);
391VNET_DEFINE(int, ip6_dad_count);
392VNET_DEFINE(int, ip6_auto_flowlabel);
393VNET_DEFINE(int, ip6_use_deprecated);
394VNET_DEFINE(int, ip6_rr_prune);
395VNET_DEFINE(int, ip6_mcast_pmtu);
396VNET_DEFINE(int, ip6_v6only);
397VNET_DEFINE(int, ip6_keepfaith);
398VNET_DEFINE(time_t, ip6_log_time);
399VNET_DEFINE(int, ip6stealth);
400VNET_DEFINE(int, nd6_onlink_ns_rfc4861);
401
402/* icmp6 */
403/*
404 * BSDI4 defines these variables in in_proto.c...
405 * XXX: what if we don't define INET? Should we define pmtu6_expire
406 * or so? (jinmei@kame.net 19990310)
407 */
408VNET_DEFINE(int, pmtu_expire);
409VNET_DEFINE(int, pmtu_probe);
410
411/* raw IP6 parameters */
412/*
413 * Nominal space allocated to a raw ip socket.
414 */
415VNET_DEFINE(u_long, rip6_sendspace);
416VNET_DEFINE(u_long, rip6_recvspace);
417
418/* ICMPV6 parameters */
419VNET_DEFINE(int, icmp6_rediraccept);
420VNET_DEFINE(int, icmp6_redirtimeout);
421VNET_DEFINE(int, icmp6errppslim);
422/* control how to respond to NI queries */
423VNET_DEFINE(int, icmp6_nodeinfo);
424
425/* UDP on IP6 parameters */
426VNET_DEFINE(int, udp6_sendspace);
427VNET_DEFINE(int, udp6_recvspace);
428
429/*
430 * sysctl related items.
431 */
432SYSCTL_NODE(_net,	PF_INET6,	inet6,	CTLFLAG_RW,	0,
433	"Internet6 Family");
434
435/* net.inet6 */
436SYSCTL_NODE(_net_inet6,	IPPROTO_IPV6,	ip6,	CTLFLAG_RW, 0,	"IP6");
437SYSCTL_NODE(_net_inet6,	IPPROTO_ICMPV6,	icmp6,	CTLFLAG_RW, 0,	"ICMP6");
438SYSCTL_NODE(_net_inet6,	IPPROTO_UDP,	udp6,	CTLFLAG_RW, 0,	"UDP6");
439SYSCTL_NODE(_net_inet6,	IPPROTO_TCP,	tcp6,	CTLFLAG_RW, 0,	"TCP6");
440#ifdef SCTP
441SYSCTL_NODE(_net_inet6,	IPPROTO_SCTP,	sctp6,	CTLFLAG_RW, 0,	"SCTP6");
442#endif
443#ifdef IPSEC
444SYSCTL_NODE(_net_inet6,	IPPROTO_ESP,	ipsec6,	CTLFLAG_RW, 0,	"IPSEC6");
445#endif /* IPSEC */
446
447/* net.inet6.ip6 */
448static int
449sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
450{
451	int error = 0;
452	int old;
453
454	VNET_SYSCTL_ARG(req, arg1);
455
456	error = SYSCTL_OUT(req, arg1, sizeof(int));
457	if (error || !req->newptr)
458		return (error);
459	old = V_ip6_temp_preferred_lifetime;
460	error = SYSCTL_IN(req, arg1, sizeof(int));
461	if (V_ip6_temp_preferred_lifetime <
462	    V_ip6_desync_factor + V_ip6_temp_regen_advance) {
463		V_ip6_temp_preferred_lifetime = old;
464		return (EINVAL);
465	}
466	return (error);
467}
468
469static int
470sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
471{
472	int error = 0;
473	int old;
474
475	VNET_SYSCTL_ARG(req, arg1);
476
477	error = SYSCTL_OUT(req, arg1, sizeof(int));
478	if (error || !req->newptr)
479		return (error);
480	old = V_ip6_temp_valid_lifetime;
481	error = SYSCTL_IN(req, arg1, sizeof(int));
482	if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) {
483		V_ip6_temp_preferred_lifetime = old;
484		return (EINVAL);
485	}
486	return (error);
487}
488
489SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW,
490	&VNET_NAME(ip6_forwarding), 0, "");
491SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW,
492	&VNET_NAME(ip6_sendredirects), 0, "");
493SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW,
494	&VNET_NAME(ip6_defhlim), 0, "");
495SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
496	&VNET_NAME(ip6stat), ip6stat, "");
497SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets,
498	CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, "");
499SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv,
500	CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0,
501	"Default value of per-interface flag for accepting ICMPv6 Router"
502	"Advertisement messages");
503SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RW,
504	&VNET_NAME(ip6_keepfaith), 0, "");
505SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval,
506	CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0, "");
507SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit,
508	CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, "");
509SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW,
510	&VNET_NAME(ip6_dad_count), 0, "");
511SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel,
512	CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0, "");
513SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim,
514	CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, "");
515SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version,
516	CTLFLAG_RD, __KAME_VERSION, 0, "");
517SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated,
518	CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0, "");
519SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW,
520	&VNET_NAME(ip6_rr_prune), 0, "");
521SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr,
522	CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0, "");
523SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
524	CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_preferred_lifetime), 0,
525   	sysctl_ip6_temppltime, "I", "");
526SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
527	CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_valid_lifetime), 0,
528   	sysctl_ip6_tempvltime, "I", "");
529SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only,	CTLFLAG_RW,
530	&VNET_NAME(ip6_v6only), 0, "");
531SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal,
532	CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0,
533	"Default value of per-interface flag for automatically adding an IPv6"
534	" link-local address to interfaces when attached");
535SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
536	&VNET_NAME(rip6stat), rip6stat, "");
537SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr,
538	CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0, "");
539SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone,
540	CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,"");
541SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags, CTLFLAG_RW,
542	&VNET_NAME(ip6_maxfrags), 0, "");
543SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW,
544	&VNET_NAME(ip6_mcast_pmtu), 0, "");
545#ifdef IPSTEALTH
546SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
547	&VNET_NAME(ip6stealth), 0, "");
548#endif
549
550/* net.inet6.icmp6 */
551SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept,
552	CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0, "");
553SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout,
554	CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0, "");
555SYSCTL_VNET_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
556	&VNET_NAME(icmp6stat), icmp6stat, "");
557SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW,
558	&VNET_NAME(nd6_prune), 0, "");
559SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW,
560	&VNET_NAME(nd6_delay), 0, "");
561SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries,
562	CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0, "");
563SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries,
564	CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0, "");
565SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback,
566	CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0, "");
567SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW,
568	&VNET_NAME(icmp6_nodeinfo), 0, "");
569SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit,
570	CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0, "");
571SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint,
572	CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0, "");
573SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW,
574	&VNET_NAME(nd6_debug), 0, "");
575
576SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
577	nd6_onlink_ns_rfc4861, CTLFLAG_RW, &VNET_NAME(nd6_onlink_ns_rfc4861),
578	0, "Accept 'on-link' nd6 NS in compliance with RFC 4861.");
579