1 /* $FreeBSD: src/sys/netinet6/in6_proto.c,v 1.6.2.9 2003/01/24 05:11:35 sam Exp $ */
2 /* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ */
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * Copyright (c) 1982, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93
65 #include "opt_inet6.h"
66 #include "opt_ipsec.h"
69 #include <sys/param.h>
70 #include <sys/socket.h>
71 #include <sys/socketvar.h>
72 #include <sys/protosw.h>
73 #include <sys/kernel.h>
74 #include <sys/domain.h>
76 #include <sys/systm.h>
77 #include <sys/sysctl.h>
80 #include <net/radix.h>
81 #include <net/route.h>
83 #include <netinet/in.h>
84 #include <netinet/in_systm.h>
85 #include <netinet/in_var.h>
86 #include <netinet/ip_encap.h>
87 #include <netinet/ip.h>
88 #include <netinet/ip_var.h>
89 #include <netinet/ip6.h>
90 #include <netinet6/ip6_var.h>
91 #include <netinet/icmp6.h>
93 #include <netinet/tcp.h>
94 #include <netinet/tcp_timer.h>
95 #include <netinet/tcp_var.h>
96 #include <netinet/udp.h>
97 #include <netinet/udp_var.h>
98 #include <netinet6/tcp6_var.h>
99 #include <netinet6/raw_ip6.h>
100 #include <netinet6/udp6_var.h>
101 #include <netinet6/pim6_var.h>
102 #include <netinet6/nd6.h>
105 #include <netinet6/ipsec.h>
107 #include <netinet6/ipsec6.h>
109 #include <netinet6/ah.h>
111 #include <netinet6/ah6.h>
114 #include <netinet6/esp.h>
116 #include <netinet6/esp6.h>
119 #include <netinet6/ipcomp.h>
121 #include <netinet6/ipcomp6.h>
126 #include <netproto/ipsec/ipsec6.h>
129 #define ah6_input ipsec6_common_input
130 #define esp6_input ipsec6_common_input
131 #define ipcomp6_input ipsec6_common_input
132 #endif /* FAST_IPSEC */
134 #include <netinet6/ip6protosw.h>
136 #include <net/net_osdep.h>
139 #include <netinet/ip_carp.h>
144 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
147 extern struct domain inet6domain
;
148 static struct pr_usrreqs nousrreqs
;
151 #define PR_ABRTACPTDIS 0
153 struct protosw inet6sw
[] = {
156 .pr_domain
= &inet6domain
,
157 .pr_protocol
= IPPROTO_IPV6
,
161 .pr_drain
= frag6_drain
,
162 .pr_usrreqs
= &nousrreqs
165 .pr_type
= SOCK_DGRAM
,
166 .pr_domain
= &inet6domain
,
167 .pr_protocol
= IPPROTO_UDP
,
168 .pr_flags
= PR_ATOMIC
| PR_ADDR
| PR_MPSAFE
| PR_LASTHDR
,
170 .pr_input
= udp6_input
,
172 .pr_ctlinput
= udp6_ctlinput
,
173 .pr_ctloutput
= ip6_ctloutput_dispatch
,
175 .pr_ctlport
= cpu0_ctlport
,
176 .pr_usrreqs
= &udp6_usrreqs
179 .pr_type
= SOCK_STREAM
,
180 .pr_domain
= &inet6domain
,
181 .pr_protocol
= IPPROTO_TCP
,
182 .pr_flags
= PR_CONNREQUIRED
| PR_WANTRCVD
| PR_LISTEN
|
183 PR_MPSAFE
| PR_LASTHDR
| PR_ASYNC_SEND
| PR_ASYNC_RCVD
,
185 .pr_input
= tcp6_input
,
187 .pr_ctlinput
= tcp6_ctlinput
,
188 .pr_ctloutput
= tcp_ctloutput
,
190 .pr_ctlport
= cpu0_ctlport
,
192 /* don't call initialization and timeout routines twice */
195 .pr_drain
= tcp_drain
,
196 .pr_usrreqs
= &tcp6_usrreqs
200 .pr_domain
= &inet6domain
,
201 .pr_protocol
= IPPROTO_RAW
,
202 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
204 .pr_input
= rip6_input
,
205 .pr_output
= rip6_output
,
206 .pr_ctlinput
= rip6_ctlinput
,
207 .pr_ctloutput
= rip6_ctloutput
,
209 .pr_ctlport
= cpu0_ctlport
,
210 .pr_usrreqs
= &rip6_usrreqs
214 .pr_domain
= &inet6domain
,
215 .pr_protocol
= IPPROTO_ICMPV6
,
216 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
218 .pr_input
= icmp6_input
,
219 .pr_output
= rip6_output
,
220 .pr_ctlinput
= rip6_ctlinput
,
221 .pr_ctloutput
= rip6_ctloutput
,
223 .pr_ctlport
= cpu0_ctlport
,
224 .pr_init
= icmp6_init
,
227 .pr_usrreqs
= &rip6_usrreqs
231 .pr_domain
= &inet6domain
,
232 .pr_protocol
= IPPROTO_DSTOPTS
, PR_ATOMIC
|PR_ADDR
,
234 .pr_input
= dest6_input
,
237 .pr_ctloutput
= NULL
,
239 .pr_usrreqs
= &nousrreqs
243 .pr_domain
= &inet6domain
,
244 .pr_protocol
= IPPROTO_ROUTING
, PR_ATOMIC
|PR_ADDR
,
246 .pr_input
= route6_input
,
249 .pr_ctloutput
= NULL
,
251 .pr_usrreqs
= &nousrreqs
255 .pr_domain
= &inet6domain
,
256 .pr_protocol
= IPPROTO_FRAGMENT
, PR_ATOMIC
|PR_ADDR
,
258 .pr_input
= frag6_input
,
261 .pr_ctloutput
= NULL
,
263 .pr_usrreqs
= &nousrreqs
268 .pr_domain
= &inet6domain
,
269 .pr_protocol
= IPPROTO_AH
,
270 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
272 .pr_input
= ah6_input
,
275 .pr_ctloutput
= NULL
,
277 .pr_usrreqs
= &nousrreqs
282 .pr_domain
= &inet6domain
,
283 .pr_protocol
= IPPROTO_ESP
,
284 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
286 .pr_input
= esp6_input
,
288 .pr_ctlinput
= esp6_ctlinput
,
289 .pr_ctloutput
= NULL
,
291 .pr_usrreqs
= &nousrreqs
296 .pr_domain
= &inet6domain
,
297 .pr_protocol
= IPPROTO_IPCOMP
,
298 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
300 .pr_input
= ipcomp6_input
,
303 .pr_ctloutput
= NULL
,
305 .pr_usrreqs
= &nousrreqs
311 .pr_domain
= &inet6domain
,
312 .pr_protocol
= IPPROTO_IPV4
,
313 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
315 .pr_input
= encap6_input
,
316 .pr_output
= rip6_output
,
318 .pr_ctloutput
= rip6_ctloutput
,
320 .pr_init
= encap_init
,
321 .pr_usrreqs
= &rip6_usrreqs
326 .pr_domain
= &inet6domain
,
327 .pr_protocol
= IPPROTO_IPV6
,
328 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
330 .pr_input
= encap6_input
,
331 .pr_output
= rip6_output
,
333 .pr_ctloutput
= rip6_ctloutput
,
335 .pr_init
= encap_init
,
336 .pr_usrreqs
= &rip6_usrreqs
340 .pr_domain
= &inet6domain
,
341 .pr_protocol
= IPPROTO_PIM
,
342 .pr_flags
= PR_ATOMIC
|PR_ADDR
|PR_LASTHDR
,
344 .pr_input
= pim6_input
,
345 .pr_output
= rip6_output
,
347 .pr_ctloutput
= rip6_ctloutput
,
349 .pr_usrreqs
= &rip6_usrreqs
354 .pr_domain
= &inet6domain
,
355 .pr_protocol
= IPPROTO_CARP
,
356 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
358 .pr_input
= carp6_proto_input
,
359 .pr_output
= rip6_output
,
361 .pr_ctloutput
= rip6_ctloutput
,
363 .pr_usrreqs
= &rip6_usrreqs
370 .pr_domain
= &inet6domain
,
372 .pr_flags
= PR_ATOMIC
|PR_ADDR
,
374 .pr_input
= rip6_input
,
375 .pr_output
= rip6_output
,
377 .pr_ctloutput
= rip6_ctloutput
,
379 .pr_usrreqs
= &rip6_usrreqs
383 extern int in6_inithead (void **, int);
385 struct domain inet6domain
= {
386 .dom_family
= AF_INET6
,
387 .dom_name
= "internet6",
389 .dom_externalize
= NULL
,
391 .dom_protosw
= inet6sw
,
392 .dom_protoswNPROTOSW
= &inet6sw
[NELEM(inet6sw
)],
393 .dom_next
= SLIST_ENTRY_INITIALIZER
,
394 .dom_rtattach
= in6_inithead
,
395 .dom_rtoffset
= offsetof(struct sockaddr_in6
, sin6_addr
) << 3,
396 .dom_maxrtkey
= sizeof(struct sockaddr_in6
),
397 .dom_ifattach
= in6_domifattach
,
398 .dom_ifdetach
= in6_domifdetach
404 * Internet configuration info
406 #ifndef IPV6FORWARDING
408 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */
410 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */
411 #endif /* GATEWAY6 */
412 #endif /* !IPV6FORWARDING */
414 #ifndef IPV6_SENDREDIRECTS
415 #define IPV6_SENDREDIRECTS 1
418 int nd6_onlink_ns_rfc4861
= 0; /* allow 'on-link' NS/NA (as in RFC 4861) */
420 int ip6_forwarding
= IPV6FORWARDING
; /* act as router? */
421 int ip6_sendredirects
= IPV6_SENDREDIRECTS
;
422 int ip6_defhlim
= IPV6_DEFHLIM
;
423 int ip6_minhlim
= IPV6_MINHLIM
;
424 int ip6_defmcasthlim
= IPV6_DEFAULT_MULTICAST_HOPS
;
425 int ip6_accept_rtadv
= 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */
426 int ip6_maxfragpackets
; /* initialized in frag6.c:frag6_init() */
427 int ip6_maxfrags
; /* initialized in frag6.c:frag6_init() */
428 int ip6_log_interval
= 5;
429 int ip6_hdrnestlimit
= 50; /* appropriate? */
430 int ip6_dad_count
= 1; /* DupAddrDetectionTransmits */
431 u_int32_t ip6_flow_seq
;
432 int ip6_auto_flowlabel
= 1;
433 int ip6_gif_hlim
= 0;
434 int ip6_use_deprecated
= 1; /* allow deprecated addr (RFC2462 5.5.4) */
435 int ip6_rr_prune
= 5; /* router renumbering prefix
436 * walk list every 5 sec. */
438 u_int32_t ip6_id
= 0UL;
439 time_t ip6_log_time
= (time_t)0L;
443 * BSDI4 defines these variables in in_proto.c...
444 * XXX: what if we don't define INET? Should we define pmtu6_expire
445 * or so? (jinmei@kame.net 19990310)
447 int pmtu_expire
= 60*10;
448 int pmtu_probe
= 60*2;
450 /* raw IP6 parameters */
452 * Nominal space allocated to a raw ip socket.
454 #define RIPV6SNDQ 8192
455 #define RIPV6RCVQ 8192
457 u_long rip6_sendspace
= RIPV6SNDQ
;
458 u_long rip6_recvspace
= RIPV6RCVQ
;
460 /* ICMPV6 parameters */
461 int icmp6_rediraccept
= 1; /* accept and process redirects */
462 int icmp6_redirtimeout
= 10 * 60; /* 10 minutes */
463 int icmp6errppslim
= 100; /* 100pps */
464 int icmp6_nodeinfo
= 3; /* enable/disable NI response */
466 /* UDP on IP6 parameters */
467 int udp6_sendspace
= 9216; /* really max datagram size */
468 int udp6_recvspace
= 40 * (1024 + sizeof(struct sockaddr_in6
));
469 /* 40 1K datagrams */
472 * sysctl related items.
474 SYSCTL_NODE(_net
, PF_INET6
, inet6
, CTLFLAG_RW
, 0,
478 SYSCTL_NODE(_net_inet6
, IPPROTO_IPV6
, ip6
, CTLFLAG_RW
, 0, "IP6");
479 SYSCTL_NODE(_net_inet6
, IPPROTO_ICMPV6
, icmp6
, CTLFLAG_RW
, 0, "ICMP6");
480 SYSCTL_NODE(_net_inet6
, IPPROTO_UDP
, udp6
, CTLFLAG_RW
, 0, "UDP6");
481 SYSCTL_NODE(_net_inet6
, IPPROTO_TCP
, tcp6
, CTLFLAG_RW
, 0, "TCP6");
483 SYSCTL_NODE(_net_inet6
, IPPROTO_ESP
, ipsec6
, CTLFLAG_RW
, 0, "IPSEC6");
488 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS
)
493 error
= SYSCTL_OUT(req
, arg1
, sizeof(int));
494 if (error
|| !req
->newptr
)
496 old
= ip6_temp_preferred_lifetime
;
497 error
= SYSCTL_IN(req
, arg1
, sizeof(int));
498 if (ip6_temp_preferred_lifetime
<
499 ip6_desync_factor
+ ip6_temp_regen_advance
) {
500 ip6_temp_preferred_lifetime
= old
;
507 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS
)
512 error
= SYSCTL_OUT(req
, arg1
, sizeof(int));
513 if (error
|| !req
->newptr
)
515 old
= ip6_temp_valid_lifetime
;
516 error
= SYSCTL_IN(req
, arg1
, sizeof(int));
517 if (ip6_temp_valid_lifetime
< ip6_temp_preferred_lifetime
) {
518 ip6_temp_preferred_lifetime
= old
;
524 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_FORWARDING
, forwarding
, CTLFLAG_RW
,
525 &ip6_forwarding
, 0, "Enable IP forwarding between interfaces");
526 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_SENDREDIRECTS
, redirect
, CTLFLAG_RW
,
527 &ip6_sendredirects
, 0, "Enable sending IP redirects");
528 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_DEFHLIM
,
529 hlim
, CTLFLAG_RW
, &ip6_defhlim
, 0, "Default hop limit");
530 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_MINHLIM
,
531 minhlim
, CTLFLAG_RW
, &ip6_minhlim
, 0, "Default hop limit");
532 SYSCTL_STRUCT(_net_inet6_ip6
, IPV6CTL_STATS
, stats
, CTLFLAG_RD
,
533 &ip6stat
, ip6stat
, "IP stats");
534 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_MAXFRAGPACKETS
, maxfragpackets
,
535 CTLFLAG_RW
, &ip6_maxfragpackets
, 0, "Maximum packets in reassembly queue");
536 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_ACCEPT_RTADV
, accept_rtadv
,
537 CTLFLAG_RW
, &ip6_accept_rtadv
, 0, "Acts as a host not a router");
538 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_LOG_INTERVAL
,
539 log_interval
, CTLFLAG_RW
, &ip6_log_interval
, 0, "");
540 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_HDRNESTLIMIT
, hdrnestlimit
, CTLFLAG_RW
,
541 &ip6_hdrnestlimit
, 0, "Upper limit of # of extension headers");
542 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_DAD_COUNT
, dad_count
, CTLFLAG_RW
,
543 &ip6_dad_count
, 0, "Number of times to perform duplicate address detectione");
544 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_AUTO_FLOWLABEL
, auto_flowlabel
, CTLFLAG_RW
,
545 &ip6_auto_flowlabel
, 0, "Enable attaching flowlabel automatically");
546 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_DEFMCASTHLIM
, defmcasthlim
, CTLFLAG_RW
,
547 &ip6_defmcasthlim
, 0, "Default multicast hop limit");
548 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_GIF_HLIM
, gifhlim
, CTLFLAG_RW
,
549 &ip6_gif_hlim
, 0, "Hop limit for gif encap packet");
550 SYSCTL_STRING(_net_inet6_ip6
, IPV6CTL_KAME_VERSION
,
551 kame_version
, CTLFLAG_RD
, __KAME_VERSION
, 0, "Kame version");
552 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_USE_DEPRECATED
, use_deprecated
, CTLFLAG_RW
,
553 &ip6_use_deprecated
, 0, "Allow deprecated addr as source");
554 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_RR_PRUNE
,
555 rr_prune
, CTLFLAG_RW
, &ip6_rr_prune
, 0,
556 "Walk timer for router renumbering");
557 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_USETEMPADDR
, use_tempaddr
, CTLFLAG_RW
,
558 &ip6_use_tempaddr
, 0, "Whether to use temporary addresses");
559 SYSCTL_OID(_net_inet6_ip6
, IPV6CTL_TEMPPLTIME
, temppltime
,
560 CTLTYPE_INT
|CTLFLAG_RW
, &ip6_temp_preferred_lifetime
, 0,
561 sysctl_ip6_temppltime
, "I",
562 "Preferred lifetime for tmpaddrs");
563 SYSCTL_OID(_net_inet6_ip6
, IPV6CTL_TEMPVLTIME
, tempvltime
,
564 CTLTYPE_INT
|CTLFLAG_RW
, &ip6_temp_valid_lifetime
, 0,
565 sysctl_ip6_tempvltime
, "I",
566 "Valid lifetime for tmpaddrs");
567 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_AUTO_LINKLOCAL
, auto_linklocal
, CTLFLAG_RW
,
568 &ip6_auto_linklocal
, 0, "Enable auto-assigning a link-local address");
569 SYSCTL_STRUCT(_net_inet6_ip6
, IPV6CTL_RIP6STATS
, rip6stats
, CTLFLAG_RD
,
570 &rip6stat
, rip6stat
, "Raw stats");
571 SYSCTL_INT(_net_inet6_ip6
, IPV6CTL_MAXFRAGS
, maxfrags
, CTLFLAG_RW
,
572 &ip6_maxfrags
, 0, "Maximum fragments in reassembly queues");
574 /* net.inet6.icmp6 */
575 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_REDIRACCEPT
, rediraccept
, CTLFLAG_RW
,
576 &icmp6_rediraccept
, 0, "If enabled, accept and process redirects");
577 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_REDIRTIMEOUT
, redirtimeout
, CTLFLAG_RW
,
578 &icmp6_redirtimeout
, 0, "Cache time for redirect routes");
579 SYSCTL_STRUCT(_net_inet6_icmp6
, ICMPV6CTL_STATS
, stats
, CTLFLAG_RD
,
580 &icmp6stat
, icmp6stat
, "Stats");
581 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_PRUNE
, nd6_prune
, CTLFLAG_RW
,
582 &nd6_prune
, 0, "Prune interval");
583 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_DELAY
, nd6_delay
, CTLFLAG_RW
,
584 &nd6_delay
, 0, "Reachability timeout for stale neighbors");
585 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_UMAXTRIES
, nd6_umaxtries
, CTLFLAG_RW
,
586 &nd6_umaxtries
, 0, "Maximum unicast query");
587 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_MMAXTRIES
, nd6_mmaxtries
, CTLFLAG_RW
,
588 &nd6_mmaxtries
, 0, "Maximum multicast query");
589 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_USELOOPBACK
, nd6_useloopback
, CTLFLAG_RW
,
590 &nd6_useloopback
, 0, "Use loopback interface for local traffic");
591 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_NODEINFO
,
592 nodeinfo
, CTLFLAG_RW
, &icmp6_nodeinfo
, 0, "Enable/disable NI response");
593 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ERRPPSLIMIT
,
594 errppslimit
, CTLFLAG_RW
, &icmp6errppslim
, 0,
595 "ICMPv6 error maximum packet-per-second value (default: 100pps)");
596 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_MAXNUDHINT
, nd6_maxnudhint
, CTLFLAG_RW
,
597 &nd6_maxnudhint
, 0, "Max # of subsequent upper layer hints");
598 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_DEBUG
, nd6_debug
, CTLFLAG_RW
,
599 &nd6_debug
, 0, "Enable debug output");
600 SYSCTL_INT(_net_inet6_icmp6
, ICMPV6CTL_ND6_ONLINKNSRFC4861
, nd6_onlink_ns_rfc4861
, CTLFLAG_RW
,
601 &nd6_onlink_ns_rfc4861
, 0, "Accept 'on-link' NS/NA in compliance with RFC 4861.");