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"
72 #include "opt_mpath.h"
74 #include <sys/param.h>
75 #include <sys/socket.h>
76 #include <sys/socketvar.h>
77 #include <sys/protosw.h>
78 #include <sys/kernel.h>
79 #include <sys/domain.h>
81 #include <sys/systm.h>
82 #include <sys/sysctl.h>
85 #include <net/radix.h>
86 #include <net/route.h>
88 #include <net/radix_mpath.h>
91 #include <netinet/in.h>
92 #include <netinet/in_systm.h>
93 #include <netinet/in_var.h>
94 #include <netinet/ip_encap.h>
95 #include <netinet/ip.h>
96 #include <netinet/ip_var.h>
97 #include <netinet/ip6.h>
98 #include <netinet6/ip6_var.h>
99 #include <netinet/icmp6.h>
101 #include <netinet/tcp.h>
102 #include <netinet/tcp_timer.h>
103 #include <netinet/tcp_var.h>
104 #include <netinet/udp.h>
105 #include <netinet/udp_var.h>
106 #include <netinet6/tcp6_var.h>
107 #include <netinet6/raw_ip6.h>
108 #include <netinet6/udp6_var.h>
109 #include <netinet6/pim6_var.h>
110 #include <netinet6/nd6.h>
113 #include <netinet/ip_carp.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.
135 extern struct domain inet6domain;
136 static struct pr_usrreqs nousrreqs;
139 #define PR_ABRTACPTDIS 0
141 struct ip6protosw inet6sw[] = {
144 .pr_domain = &inet6domain,
145 .pr_protocol = IPPROTO_IPV6,
147 .pr_slowtimo = frag6_slowtimo,
148 .pr_drain = frag6_drain,
149 .pr_usrreqs = &nousrreqs,
152 .pr_type = SOCK_DGRAM,
153 .pr_domain = &inet6domain,
154 .pr_protocol = IPPROTO_UDP,
155 .pr_flags = PR_ATOMIC|PR_ADDR,
156 .pr_input = udp6_input,
157 .pr_ctlinput = udp6_ctlinput,
158 .pr_ctloutput = ip6_ctloutput,
159 .pr_usrreqs = &udp6_usrreqs,
162 .pr_type = SOCK_STREAM,
163 .pr_domain = &inet6domain,
164 .pr_protocol = IPPROTO_TCP,
165 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
166 .pr_input = tcp6_input,
167 .pr_ctlinput = tcp6_ctlinput,
168 .pr_ctloutput = tcp_ctloutput,
169 #ifndef INET /* don't call initialization and timeout routines twice */
171 .pr_fasttimo = tcp_fasttimo,
172 .pr_slowtimo = tcp_slowtimo,
174 .pr_drain = tcp_drain,
175 .pr_usrreqs = &tcp6_usrreqs,
179 .pr_type = SOCK_DGRAM,
180 .pr_domain = &inet6domain,
181 .pr_protocol = IPPROTO_SCTP,
182 .pr_flags = PR_WANTRCVD,
183 .pr_input = sctp6_input,
184 .pr_ctlinput = sctp6_ctlinput,
185 .pr_ctloutput = sctp_ctloutput,
186 .pr_drain = sctp_drain,
187 .pr_usrreqs = &sctp6_usrreqs
190 .pr_type = SOCK_SEQPACKET,
191 .pr_domain = &inet6domain,
192 .pr_protocol = IPPROTO_SCTP,
193 .pr_flags = PR_WANTRCVD,
194 .pr_input = sctp6_input,
195 .pr_ctlinput = sctp6_ctlinput,
196 .pr_ctloutput = sctp_ctloutput,
197 .pr_drain = sctp_drain,
198 .pr_usrreqs = &sctp6_usrreqs
202 .pr_type = SOCK_STREAM,
203 .pr_domain = &inet6domain,
204 .pr_protocol = IPPROTO_SCTP,
205 .pr_flags = PR_WANTRCVD,
206 .pr_input = sctp6_input,
207 .pr_ctlinput = sctp6_ctlinput,
208 .pr_ctloutput = sctp_ctloutput,
209 .pr_drain = sctp_drain,
210 .pr_usrreqs = &sctp6_usrreqs
215 .pr_domain = &inet6domain,
216 .pr_protocol = IPPROTO_RAW,
217 .pr_flags = PR_ATOMIC|PR_ADDR,
218 .pr_input = rip6_input,
219 .pr_output = rip6_output,
220 .pr_ctlinput = rip6_ctlinput,
221 .pr_ctloutput = rip6_ctloutput,
222 .pr_usrreqs = &rip6_usrreqs
226 .pr_domain = &inet6domain,
227 .pr_protocol = IPPROTO_ICMPV6,
228 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
229 .pr_input = icmp6_input,
230 .pr_output = rip6_output,
231 .pr_ctlinput = rip6_ctlinput,
232 .pr_ctloutput = rip6_ctloutput,
233 .pr_init = icmp6_init,
234 .pr_fasttimo = icmp6_fasttimo,
235 .pr_usrreqs = &rip6_usrreqs
239 .pr_domain = &inet6domain,
240 .pr_protocol = IPPROTO_DSTOPTS,
241 .pr_flags = PR_ATOMIC|PR_ADDR,
242 .pr_input = dest6_input,
243 .pr_usrreqs = &nousrreqs
247 .pr_domain = &inet6domain,
248 .pr_protocol = IPPROTO_ROUTING,
249 .pr_flags = PR_ATOMIC|PR_ADDR,
250 .pr_input = route6_input,
251 .pr_usrreqs = &nousrreqs
255 .pr_domain = &inet6domain,
256 .pr_protocol = IPPROTO_FRAGMENT,
257 .pr_flags = PR_ATOMIC|PR_ADDR,
258 .pr_input = frag6_input,
259 .pr_usrreqs = &nousrreqs
264 .pr_domain = &inet6domain,
265 .pr_protocol = IPPROTO_AH,
266 .pr_flags = PR_ATOMIC|PR_ADDR,
267 .pr_input = ipsec6_common_input,
268 .pr_usrreqs = &nousrreqs,
272 .pr_domain = &inet6domain,
273 .pr_protocol = IPPROTO_ESP,
274 .pr_flags = PR_ATOMIC|PR_ADDR,
275 .pr_input = ipsec6_common_input,
276 .pr_ctlinput = esp6_ctlinput,
277 .pr_usrreqs = &nousrreqs,
281 .pr_domain = &inet6domain,
282 .pr_protocol = IPPROTO_IPCOMP,
283 .pr_flags = PR_ATOMIC|PR_ADDR,
284 .pr_input = ipsec6_common_input,
285 .pr_usrreqs = &nousrreqs,
291 .pr_domain = &inet6domain,
292 .pr_protocol = IPPROTO_IPV4,
293 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
294 .pr_input = encap6_input,
295 .pr_output = rip6_output,
296 .pr_ctloutput = rip6_ctloutput,
297 .pr_init = encap_init,
298 .pr_usrreqs = &rip6_usrreqs
303 .pr_domain = &inet6domain,
304 .pr_protocol = IPPROTO_IPV6,
305 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
306 .pr_input = encap6_input,
307 .pr_output = rip6_output,
308 .pr_ctloutput = rip6_ctloutput,
309 .pr_init = encap_init,
310 .pr_usrreqs = &rip6_usrreqs
314 .pr_domain = &inet6domain,
315 .pr_protocol = IPPROTO_PIM,
316 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
317 .pr_input = encap6_input,
318 .pr_output = rip6_output,
319 .pr_ctloutput = rip6_ctloutput,
320 .pr_usrreqs = &rip6_usrreqs
325 .pr_domain = &inet6domain,
326 .pr_protocol = IPPROTO_CARP,
327 .pr_flags = PR_ATOMIC|PR_ADDR,
328 .pr_input = carp6_input,
329 .pr_output = rip6_output,
330 .pr_ctloutput = rip6_ctloutput,
331 .pr_usrreqs = &rip6_usrreqs
333 #endif /* DEV_CARP */
337 .pr_domain = &inet6domain,
338 .pr_flags = PR_ATOMIC|PR_ADDR,
339 .pr_input = rip6_input,
340 .pr_output = rip6_output,
341 .pr_ctloutput = rip6_ctloutput,
342 .pr_usrreqs = &rip6_usrreqs
346 extern int in6_inithead(void **, int);
348 struct domain inet6domain = {
349 .dom_family = AF_INET6,
350 .dom_name = "internet6",
351 .dom_protosw = (struct protosw *)inet6sw,
352 .dom_protoswNPROTOSW = (struct protosw *)
353 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
355 .dom_rtattach = rn6_mpath_inithead,
357 .dom_rtattach = in6_inithead,
359 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3,
360 .dom_maxrtkey = sizeof(struct sockaddr_in6),
361 .dom_ifattach = in6_domifattach,
362 .dom_ifdetach = in6_domifdetach
368 * Internet configuration info
370 #ifndef IPV6FORWARDING
372 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */
374 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */
375 #endif /* GATEWAY6 */
376 #endif /* !IPV6FORWARDING */
378 #ifndef IPV6_SENDREDIRECTS
379 #define IPV6_SENDREDIRECTS 1
382 int ip6_forwarding = IPV6FORWARDING; /* act as router? */
383 int ip6_sendredirects = IPV6_SENDREDIRECTS;
384 int ip6_defhlim = IPV6_DEFHLIM;
385 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
386 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */
387 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */
388 int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */
389 int ip6_log_interval = 5;
390 int ip6_hdrnestlimit = 15; /* How many header options will we process? */
391 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */
392 int ip6_auto_flowlabel = 1;
393 int ip6_gif_hlim = 0;
394 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
395 int ip6_rr_prune = 5; /* router renumbering prefix
396 * walk list every 5 sec. */
397 int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */
400 int ip6_keepfaith = 0;
401 time_t ip6_log_time = (time_t)0L;
408 * BSDI4 defines these variables in in_proto.c...
409 * XXX: what if we don't define INET? Should we define pmtu6_expire
410 * or so? (jinmei@kame.net 19990310)
412 int pmtu_expire = 60*10;
413 int pmtu_probe = 60*2;
415 /* raw IP6 parameters */
417 * Nominal space allocated to a raw ip socket.
419 #define RIPV6SNDQ 8192
420 #define RIPV6RCVQ 8192
422 u_long rip6_sendspace = RIPV6SNDQ;
423 u_long rip6_recvspace = RIPV6RCVQ;
425 /* ICMPV6 parameters */
426 int icmp6_rediraccept = 1; /* accept and process redirects */
427 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */
428 int icmp6errppslim = 100; /* 100pps */
429 /* control how to respond to NI queries */
430 int icmp6_nodeinfo = (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK);
432 /* UDP on IP6 parameters */
433 int udp6_sendspace = 9216; /* really max datagram size */
434 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
435 /* 40 1K datagrams */
438 * sysctl related items.
440 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0,
444 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6");
445 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6");
446 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6");
447 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6");
449 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6");
452 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
457 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
462 error = SYSCTL_OUT(req, arg1, sizeof(int));
463 if (error || !req->newptr)
465 old = ip6_temp_preferred_lifetime;
466 error = SYSCTL_IN(req, arg1, sizeof(int));
467 if (ip6_temp_preferred_lifetime <
468 ip6_desync_factor + ip6_temp_regen_advance) {
469 ip6_temp_preferred_lifetime = old;
476 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
481 error = SYSCTL_OUT(req, arg1, sizeof(int));
482 if (error || !req->newptr)
484 old = ip6_temp_valid_lifetime;
485 error = SYSCTL_IN(req, arg1, sizeof(int));
486 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) {
487 ip6_temp_preferred_lifetime = old;
493 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING,
494 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, "");
495 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
496 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, "");
497 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
498 hlim, CTLFLAG_RW, &ip6_defhlim, 0, "");
499 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
500 &ip6stat, ip6stat, "");
501 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS,
502 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, "");
503 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
504 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, "");
505 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
506 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, "");
507 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
508 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, "");
509 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
510 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, "");
511 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
512 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, "");
513 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
514 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, "");
515 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
516 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, "");
517 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
518 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, "");
519 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
520 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "");
521 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
522 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, "");
523 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
524 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, "");
525 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
526 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, "");
527 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
528 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
529 sysctl_ip6_temppltime, "I", "");
530 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
531 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
532 sysctl_ip6_tempvltime, "I", "");
533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
534 v6only, CTLFLAG_RW, &ip6_v6only, 0, "");
535 TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal);
536 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
537 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, "");
538 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
539 &rip6stat, rip6stat, "");
540 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
541 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, "");
542 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE,
543 use_defaultzone, CTLFLAG_RW, &ip6_use_defzone, 0,"");
544 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS,
545 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, "");
546 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU,
547 mcast_pmtu, CTLFLAG_RW, &ip6_mcast_pmtu, 0, "");
549 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
553 /* net.inet6.icmp6 */
554 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
555 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, "");
556 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
557 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, "");
558 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
559 &icmp6stat, icmp6stat, "");
560 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
561 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, "");
562 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
563 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, "");
564 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
565 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, "");
566 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
567 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, "");
568 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
569 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, "");
570 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
571 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "");
572 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
573 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, "");
574 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
575 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, "");
576 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
577 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, "");