2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 * $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $
33 * Copyright (c) 1982, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
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.
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
60 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93
63 #include <sys/cdefs.h>
64 __FBSDID("$FreeBSD$");
67 #include "opt_inet6.h"
68 #include "opt_ipsec.h"
69 #include "opt_ipstealth.h"
71 #include "opt_mpath.h"
72 #include "opt_route.h"
74 #include <sys/param.h>
75 #include <sys/socket.h>
76 #include <sys/socketvar.h>
78 #include <sys/protosw.h>
80 #include <sys/kernel.h>
81 #include <sys/malloc.h>
82 #include <sys/domain.h>
84 #include <sys/systm.h>
85 #include <sys/sysctl.h>
88 #include <net/if_var.h>
89 #include <net/radix.h>
90 #include <net/route.h>
92 #include <net/radix_mpath.h>
95 #include <netinet/in.h>
96 #include <netinet/in_systm.h>
97 #include <netinet/in_var.h>
98 #include <netinet/ip_encap.h>
99 #include <netinet/ip.h>
100 #include <netinet/ip_var.h>
101 #include <netinet/ip6.h>
102 #include <netinet6/ip6_var.h>
103 #include <netinet/icmp6.h>
105 #include <netinet/tcp.h>
106 #include <netinet/tcp_timer.h>
107 #include <netinet/tcp_var.h>
108 #include <netinet/udp.h>
109 #include <netinet/udp_var.h>
110 #include <netinet6/tcp6_var.h>
111 #include <netinet6/raw_ip6.h>
112 #include <netinet6/udp6_var.h>
113 #include <netinet6/pim6_var.h>
114 #include <netinet6/nd6.h>
117 #include <netinet/in_pcb.h>
118 #include <netinet/sctp_pcb.h>
119 #include <netinet/sctp.h>
120 #include <netinet/sctp_var.h>
121 #include <netinet6/sctp6_var.h>
125 #include <netipsec/ipsec.h>
126 #include <netipsec/ipsec6.h>
129 #include <netinet6/ip6protosw.h>
132 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
134 FEATURE(inet6, "Internet Protocol version 6");
136 extern struct domain inet6domain;
137 static struct pr_usrreqs nousrreqs;
140 #define PR_ABRTACPTDIS 0
142 /* Spacer for loadable protocols. */
143 #define IP6PROTOSPACER \
145 .pr_domain = &inet6domain, \
146 .pr_protocol = PROTO_SPACER, \
147 .pr_usrreqs = &nousrreqs \
150 struct protosw inet6sw[] = {
153 .pr_domain = &inet6domain,
154 .pr_protocol = IPPROTO_IPV6,
157 .pr_destroy = ip6_destroy,
159 .pr_slowtimo = frag6_slowtimo,
160 .pr_drain = frag6_drain,
161 .pr_usrreqs = &nousrreqs,
164 .pr_type = SOCK_DGRAM,
165 .pr_domain = &inet6domain,
166 .pr_protocol = IPPROTO_UDP,
167 .pr_flags = PR_ATOMIC|PR_ADDR,
168 .pr_input = udp6_input,
169 .pr_ctlinput = udp6_ctlinput,
170 .pr_ctloutput = ip6_ctloutput,
171 #ifndef INET /* Do not call initialization twice. */
174 .pr_usrreqs = &udp6_usrreqs,
177 .pr_type = SOCK_STREAM,
178 .pr_domain = &inet6domain,
179 .pr_protocol = IPPROTO_TCP,
180 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
181 .pr_input = tcp6_input,
182 .pr_ctlinput = tcp6_ctlinput,
183 .pr_ctloutput = tcp_ctloutput,
184 #ifndef INET /* don't call initialization and timeout routines twice */
186 .pr_slowtimo = tcp_slowtimo,
188 .pr_drain = tcp_drain,
189 .pr_usrreqs = &tcp6_usrreqs,
193 .pr_type = SOCK_SEQPACKET,
194 .pr_domain = &inet6domain,
195 .pr_protocol = IPPROTO_SCTP,
196 .pr_flags = PR_WANTRCVD,
197 .pr_input = sctp6_input,
198 .pr_ctlinput = sctp6_ctlinput,
199 .pr_ctloutput = sctp_ctloutput,
200 .pr_drain = sctp_drain,
201 #ifndef INET /* Do not call initialization twice. */
202 .pr_init = sctp_init,
204 .pr_usrreqs = &sctp6_usrreqs
207 .pr_type = SOCK_STREAM,
208 .pr_domain = &inet6domain,
209 .pr_protocol = IPPROTO_SCTP,
210 .pr_flags = PR_CONNREQUIRED|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
219 .pr_type = SOCK_DGRAM,
220 .pr_domain = &inet6domain,
221 .pr_protocol = IPPROTO_UDPLITE,
222 .pr_flags = PR_ATOMIC|PR_ADDR,
223 .pr_input = udp6_input,
224 .pr_ctlinput = udplite6_ctlinput,
225 .pr_ctloutput = udp_ctloutput,
226 #ifndef INET /* Do not call initialization twice. */
227 .pr_init = udplite_init,
229 .pr_usrreqs = &udp6_usrreqs,
233 .pr_domain = &inet6domain,
234 .pr_protocol = IPPROTO_RAW,
235 .pr_flags = PR_ATOMIC|PR_ADDR,
236 .pr_input = rip6_input,
237 .pr_output = rip6_output,
238 .pr_ctlinput = rip6_ctlinput,
239 .pr_ctloutput = rip6_ctloutput,
240 #ifndef INET /* Do not call initialization twice. */
243 .pr_usrreqs = &rip6_usrreqs
247 .pr_domain = &inet6domain,
248 .pr_protocol = IPPROTO_ICMPV6,
249 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
250 .pr_input = icmp6_input,
251 .pr_output = rip6_output,
252 .pr_ctlinput = rip6_ctlinput,
253 .pr_ctloutput = rip6_ctloutput,
254 .pr_fasttimo = icmp6_fasttimo,
255 .pr_slowtimo = icmp6_slowtimo,
256 .pr_usrreqs = &rip6_usrreqs
260 .pr_domain = &inet6domain,
261 .pr_protocol = IPPROTO_DSTOPTS,
262 .pr_flags = PR_ATOMIC|PR_ADDR,
263 .pr_input = dest6_input,
264 .pr_usrreqs = &nousrreqs
268 .pr_domain = &inet6domain,
269 .pr_protocol = IPPROTO_ROUTING,
270 .pr_flags = PR_ATOMIC|PR_ADDR,
271 .pr_input = route6_input,
272 .pr_usrreqs = &nousrreqs
276 .pr_domain = &inet6domain,
277 .pr_protocol = IPPROTO_FRAGMENT,
278 .pr_flags = PR_ATOMIC|PR_ADDR,
279 .pr_input = frag6_input,
280 .pr_usrreqs = &nousrreqs
285 .pr_domain = &inet6domain,
286 .pr_protocol = IPPROTO_AH,
287 .pr_flags = PR_ATOMIC|PR_ADDR,
288 .pr_input = ipsec6_common_input,
289 .pr_usrreqs = &nousrreqs,
293 .pr_domain = &inet6domain,
294 .pr_protocol = IPPROTO_ESP,
295 .pr_flags = PR_ATOMIC|PR_ADDR,
296 .pr_input = ipsec6_common_input,
297 .pr_ctlinput = esp6_ctlinput,
298 .pr_usrreqs = &nousrreqs,
302 .pr_domain = &inet6domain,
303 .pr_protocol = IPPROTO_IPCOMP,
304 .pr_flags = PR_ATOMIC|PR_ADDR,
305 .pr_input = ipsec6_common_input,
306 .pr_usrreqs = &nousrreqs,
312 .pr_domain = &inet6domain,
313 .pr_protocol = IPPROTO_IPV4,
314 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
315 .pr_input = encap6_input,
316 .pr_output = rip6_output,
317 .pr_ctloutput = rip6_ctloutput,
318 .pr_init = encap_init,
319 .pr_usrreqs = &rip6_usrreqs
324 .pr_domain = &inet6domain,
325 .pr_protocol = IPPROTO_IPV6,
326 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
327 .pr_input = encap6_input,
328 .pr_output = rip6_output,
329 .pr_ctloutput = rip6_ctloutput,
330 .pr_init = encap_init,
331 .pr_usrreqs = &rip6_usrreqs
335 .pr_domain = &inet6domain,
336 .pr_protocol = IPPROTO_GRE,
337 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
338 .pr_input = encap6_input,
339 .pr_output = rip6_output,
340 .pr_ctloutput = rip6_ctloutput,
341 .pr_init = encap_init,
342 .pr_usrreqs = &rip6_usrreqs
346 .pr_domain = &inet6domain,
347 .pr_protocol = IPPROTO_PIM,
348 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
349 .pr_input = encap6_input,
350 .pr_output = rip6_output,
351 .pr_ctloutput = rip6_ctloutput,
352 .pr_usrreqs = &rip6_usrreqs
354 /* Spacer n-times for loadable protocols. */
366 .pr_domain = &inet6domain,
367 .pr_flags = PR_ATOMIC|PR_ADDR,
368 .pr_input = rip6_input,
369 .pr_output = rip6_output,
370 .pr_ctloutput = rip6_ctloutput,
371 .pr_usrreqs = &rip6_usrreqs
375 extern int in6_inithead(void **, int);
377 extern int in6_detachhead(void **, int);
380 struct domain inet6domain = {
381 .dom_family = AF_INET6,
382 .dom_name = "internet6",
383 .dom_protosw = (struct protosw *)inet6sw,
384 .dom_protoswNPROTOSW = (struct protosw *)&inet6sw[nitems(inet6sw)],
386 .dom_rtattach = rn6_mpath_inithead,
388 .dom_rtattach = in6_inithead,
391 .dom_rtdetach = in6_detachhead,
393 .dom_ifattach = in6_domifattach,
394 .dom_ifdetach = in6_domifdetach,
395 .dom_ifmtu = in6_domifmtu
398 VNET_DOMAIN_SET(inet6);
401 * Internet configuration info
403 #ifndef IPV6FORWARDING
405 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */
407 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */
408 #endif /* GATEWAY6 */
409 #endif /* !IPV6FORWARDING */
411 #ifndef IPV6_SENDREDIRECTS
412 #define IPV6_SENDREDIRECTS 1
415 VNET_DEFINE(int, ip6_forwarding) = IPV6FORWARDING; /* act as router? */
416 VNET_DEFINE(int, ip6_sendredirects) = IPV6_SENDREDIRECTS;
417 VNET_DEFINE(int, ip6_defhlim) = IPV6_DEFHLIM;
418 VNET_DEFINE(int, ip6_defmcasthlim) = IPV6_DEFAULT_MULTICAST_HOPS;
419 VNET_DEFINE(int, ip6_accept_rtadv) = 0;
420 VNET_DEFINE(int, ip6_no_radr) = 0;
421 VNET_DEFINE(int, ip6_norbit_raif) = 0;
422 VNET_DEFINE(int, ip6_rfc6204w3) = 0;
423 VNET_DEFINE(int, ip6_maxfragpackets); /* initialized in frag6.c:frag6_init() */
424 VNET_DEFINE(int, ip6_maxfrags); /* initialized in frag6.c:frag6_init() */
425 VNET_DEFINE(int, ip6_log_interval) = 5;
426 VNET_DEFINE(int, ip6_hdrnestlimit) = 15;/* How many header options will we
428 VNET_DEFINE(int, ip6_dad_count) = 1; /* DupAddrDetectionTransmits */
429 VNET_DEFINE(int, ip6_auto_flowlabel) = 1;
430 VNET_DEFINE(int, ip6_use_deprecated) = 1;/* allow deprecated addr
432 VNET_DEFINE(int, ip6_rr_prune) = 5; /* router renumbering prefix
433 * walk list every 5 sec. */
434 VNET_DEFINE(int, ip6_mcast_pmtu) = 0; /* enable pMTU discovery for multicast? */
435 VNET_DEFINE(int, ip6_v6only) = 1;
437 VNET_DEFINE(time_t, ip6_log_time) = (time_t)0L;
439 VNET_DEFINE(int, ip6stealth) = 0;
441 VNET_DEFINE(int, nd6_onlink_ns_rfc4861) = 0;/* allow 'on-link' nd6 NS
446 * BSDI4 defines these variables in in_proto.c...
447 * XXX: what if we don't define INET? Should we define pmtu6_expire
448 * or so? (jinmei@kame.net 19990310)
450 VNET_DEFINE(int, pmtu_expire) = 60*10;
451 VNET_DEFINE(int, pmtu_probe) = 60*2;
453 /* ICMPV6 parameters */
454 VNET_DEFINE(int, icmp6_rediraccept) = 1;/* accept and process redirects */
455 VNET_DEFINE(int, icmp6_redirtimeout) = 10 * 60; /* 10 minutes */
456 VNET_DEFINE(int, icmp6errppslim) = 100; /* 100pps */
457 /* control how to respond to NI queries */
458 VNET_DEFINE(int, icmp6_nodeinfo) =
459 (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK);
460 VNET_DEFINE(int, icmp6_nodeinfo_oldmcprefix) = 1;
463 * sysctl related items.
465 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0,
469 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6");
470 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6");
471 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6");
472 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6");
474 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6");
477 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
482 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
486 val = V_ip6_temp_preferred_lifetime;
487 error = sysctl_handle_int(oidp, &val, 0, req);
488 if (error != 0 || !req->newptr)
490 if (val < V_ip6_desync_factor + V_ip6_temp_regen_advance)
492 V_ip6_temp_preferred_lifetime = val;
497 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
501 val = V_ip6_temp_valid_lifetime;
502 error = sysctl_handle_int(oidp, &val, 0, req);
503 if (error != 0 || !req->newptr)
505 if (val < V_ip6_temp_preferred_lifetime)
507 V_ip6_temp_valid_lifetime = val;
511 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding,
512 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_forwarding), 0,
513 "Enable IPv6 forwarding between interfaces");
514 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect,
515 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_sendredirects), 0,
516 "Send a redirect message when forwarding back to a source link");
517 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim,
518 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_defhlim), 0,
519 "Default hop limit");
520 SYSCTL_VNET_PCPUSTAT(_net_inet6_ip6, IPV6CTL_STATS, stats, struct ip6stat,
522 "IP6 statistics (struct ip6stat, netinet6/ip6_var.h)");
523 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets,
524 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0,
525 "Maximum allowed number of outstanding fragmented IPv6 packets");
526 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv,
527 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0,
528 "Default value of per-interface flag for accepting ICMPv6 RA messages");
529 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_NO_RADR, no_radr,
530 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_no_radr), 0,
531 "Default value of per-interface flag to control whether routers "
532 "sending ICMPv6 RA messages on that interface are added into the "
533 "default router list");
534 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_NORBIT_RAIF, norbit_raif,
535 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_norbit_raif), 0,
536 "Always set clear the R flag in ICMPv6 NA messages when accepting RA "
538 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RFC6204W3, rfc6204w3,
539 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_rfc6204w3), 0,
540 "Accept the default router list from ICMPv6 RA messages even "
541 "when packet forwarding is enabled");
542 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval,
543 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0,
544 "Frequency in seconds at which to log IPv6 forwarding errors");
545 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit,
546 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0,
547 "Maximum allowed number of nested protocol headers");
548 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count,
549 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_dad_count), 0,
550 "Number of ICMPv6 NS messages sent during duplicate address detection");
551 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel,
552 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0,
553 "Provide an IPv6 flowlabel in outbound packets");
554 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim,
555 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0,
556 "Default hop limit for multicast packets");
557 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version,
558 CTLFLAG_RD, __KAME_VERSION, 0,
559 "KAME version string");
560 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated,
561 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0,
562 "Allow the use of addresses whose preferred lifetimes have expired");
563 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune,
564 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_rr_prune), 0,
565 ""); /* XXX unused */
566 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr,
567 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0,
568 "Create RFC3041 temporary addresses for autoconfigured addresses");
569 SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
570 CTLFLAG_VNET | CTLTYPE_INT | CTLFLAG_RW,
571 NULL, 0, sysctl_ip6_temppltime, "I",
572 "Maximum preferred lifetime for temporary addresses");
573 SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
574 CTLFLAG_VNET | CTLTYPE_INT | CTLFLAG_RW,
575 NULL, 0, sysctl_ip6_tempvltime, "I",
576 "Maximum valid lifetime for temporary addresses");
577 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only,
578 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_v6only), 0,
579 "Restrict AF_INET6 sockets to IPv6 addresses only");
580 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal,
581 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0,
582 "Default value of per-interface flag for automatically adding an IPv6 "
583 "link-local address to interfaces when attached");
584 SYSCTL_VNET_PCPUSTAT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats,
585 struct rip6stat, rip6stat,
586 "Raw IP6 statistics (struct rip6stat, netinet6/raw_ip6.h)");
587 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr,
588 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0,
589 "Prefer RFC3041 temporary addresses in source address selection");
590 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone,
591 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,
592 "Use the default scope zone when none is specified");
593 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags,
594 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_maxfrags), 0,
595 "Maximum allowed number of outstanding IPv6 packet fragments");
596 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu,
597 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(ip6_mcast_pmtu), 0,
598 "Enable path MTU discovery for multicast packets");
600 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_VNET | CTLFLAG_RW,
601 &VNET_NAME(ip6stealth), 0,
602 "Forward IPv6 packets without decrementing their TTL");
605 /* net.inet6.icmp6 */
606 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept,
607 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0,
608 "Accept ICMPv6 redirect messages");
609 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout,
610 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0,
611 ""); /* XXX unused */
612 SYSCTL_VNET_PCPUSTAT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats,
613 struct icmp6stat, icmp6stat,
614 "ICMPv6 statistics (struct icmp6stat, netinet/icmp6.h)");
615 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune,
616 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_prune), 0,
617 "Frequency in seconds of checks for expired prefixes and routers");
618 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay,
619 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_delay), 0,
620 "Delay in seconds before probing for reachability");
621 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries,
622 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0,
623 "Number of ICMPv6 NS messages sent during reachability detection");
624 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries,
625 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0,
626 "Number of ICMPv6 NS messages sent during address resolution");
627 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback,
628 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0,
629 "Create a loopback route when configuring an IPv6 address");
630 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo,
631 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(icmp6_nodeinfo), 0,
632 "Mask of enabled RF4620 node information query types");
633 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO_OLDMCPREFIX,
634 nodeinfo_oldmcprefix, CTLFLAG_VNET | CTLFLAG_RW,
635 &VNET_NAME(icmp6_nodeinfo_oldmcprefix), 0,
636 "Join old IPv6 NI group address in draft-ietf-ipngwg-icmp-name-lookup "
637 "for compatibility with KAME implementation");
638 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit,
639 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0,
640 "Maximum number of ICMPv6 error messages per second");
641 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint,
642 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0,
643 ""); /* XXX unused */
644 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug,
645 CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(nd6_debug), 0,
646 "Log NDP debug messages");
647 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
648 nd6_onlink_ns_rfc4861, CTLFLAG_VNET | CTLFLAG_RW,
649 &VNET_NAME(nd6_onlink_ns_rfc4861), 0,
650 "Accept 'on-link' ICMPv6 NS messages in compliance with RFC 4861");