1 /* $FreeBSD: src/sys/netinet6/in6_proto.c,v 1.29.2.4.2.1 2007/04/26 23:41:27 cperciva Exp $ */
2 /* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ */
3
4 /*-
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
19 *
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
30 * SUCH DAMAGE.
31 */
32
33 /*-
34 * Copyright (c) 1982, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
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 * 4. 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.
48 *
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
59 * SUCH DAMAGE.
60 *
61 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93
62 */
63
64 #include "opt_inet.h"
65 #include "opt_inet6.h"
66 #include "opt_ipsec.h"
67 #include "opt_ipstealth.h"
68 #include "opt_carp.h"
69
70 #include <sys/param.h>
71 #include <sys/socket.h>
72 #include <sys/socketvar.h>
73 #include <sys/protosw.h>
74 #include <sys/kernel.h>
75 #include <sys/domain.h>
76 #include <sys/mbuf.h>
77 #include <sys/systm.h>
78 #include <sys/sysctl.h>
79
80 #include <net/if.h>
81 #include <net/radix.h>
82 #include <net/route.h>
83
84 #include <netinet/in.h>
85 #include <netinet/in_systm.h>
86 #include <netinet/in_var.h>
87 #include <netinet/ip_encap.h>
88 #include <netinet/ip.h>
89 #include <netinet/ip_var.h>
90 #include <netinet/ip6.h>
91 #include <netinet6/ip6_var.h>
92 #include <netinet/icmp6.h>
93
94 #include <netinet/tcp.h>
95 #include <netinet/tcp_timer.h>
96 #include <netinet/tcp_var.h>
97 #include <netinet/udp.h>
98 #include <netinet/udp_var.h>
99 #include <netinet6/tcp6_var.h>
100 #include <netinet6/raw_ip6.h>
101 #include <netinet6/udp6_var.h>
102 #include <netinet6/pim6_var.h>
103 #include <netinet6/nd6.h>
104
105 #ifdef IPSEC
106 #include <netinet6/ipsec.h>
107 #ifdef INET6
108 #include <netinet6/ipsec6.h>
109 #endif
110 #include <netinet6/ah.h>
111 #ifdef INET6
112 #include <netinet6/ah6.h>
113 #endif
114 #ifdef IPSEC_ESP
115 #include <netinet6/esp.h>
116 #ifdef INET6
117 #include <netinet6/esp6.h>
118 #endif
119 #endif
120 #include <netinet6/ipcomp.h>
121 #ifdef INET6
122 #include <netinet6/ipcomp6.h>
123 #endif
124 #endif /* IPSEC */
125
126 #ifdef DEV_CARP
127 #include <netinet/ip_carp.h>
128 #endif
129
130 #ifdef FAST_IPSEC
131 #include <netipsec/ipsec6.h>
132 #define IPSEC
133 #define IPSEC_ESP
134 #define ah6_input ipsec6_common_input
135 #define esp6_input ipsec6_common_input
136 #define ipcomp6_input ipsec6_common_input
137 #endif /* FAST_IPSEC */
138
139 #include <netinet6/ip6protosw.h>
140
141 #include <net/net_osdep.h>
142
143 /*
144 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
145 */
146
147 extern struct domain inet6domain;
148 static struct pr_usrreqs nousrreqs;
149
150 #define PR_LISTEN 0
151 #define PR_ABRTACPTDIS 0
152
153 struct ip6protosw inet6sw[] = {
154 { 0, &inet6domain, IPPROTO_IPV6, 0,
155 0, 0, 0, 0,
156 0,
157 ip6_init, 0, frag6_slowtimo, frag6_drain,
158 &nousrreqs,
159 },
160 { SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
161 udp6_input, 0, udp6_ctlinput, ip6_ctloutput,
162 0,
163 0, 0, 0, 0,
164 &udp6_usrreqs,
165 },
166 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
167 tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput,
168 0,
169 #ifdef INET /* don't call initialization and timeout routines twice */
170 0, 0, 0, tcp_drain,
171 #else
172 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain,
173 #endif
174 &tcp6_usrreqs,
175 },
176 { SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
177 rip6_input, rip6_output, rip6_ctlinput, rip6_ctloutput,
178 0,
179 0, 0, 0, 0,
180 &rip6_usrreqs
181 },
182 { SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
183 icmp6_input, rip6_output, rip6_ctlinput, rip6_ctloutput,
184 0,
185 icmp6_init, icmp6_fasttimo, 0, 0,
186 &rip6_usrreqs
187 },
188 { SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR,
189 dest6_input, 0, 0, 0,
190 0,
191 0, 0, 0, 0,
192 &nousrreqs
193 },
194 { SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR,
195 route6_input, 0, 0, 0,
196 0,
197 0, 0, 0, 0,
198 &nousrreqs
199 },
200 { SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR,
201 frag6_input, 0, 0, 0,
202 0,
203 0, 0, 0, 0,
204 &nousrreqs
205 },
206 #ifdef IPSEC
207 { SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
208 ah6_input, 0, 0, 0,
209 0,
210 0, 0, 0, 0,
211 &nousrreqs,
212 },
213 #ifdef IPSEC_ESP
214 { SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
215 esp6_input, 0,
216 esp6_ctlinput,
217 0,
218 0,
219 0, 0, 0, 0,
220 &nousrreqs,
221 },
222 #endif
223 { SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
224 ipcomp6_input, 0, 0, 0,
225 0,
226 0, 0, 0, 0,
227 &nousrreqs,
228 },
229 #endif /* IPSEC */
230 #ifdef INET
231 { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
232 encap6_input, rip6_output, 0, rip6_ctloutput,
233 0,
234 encap_init, 0, 0, 0,
235 &rip6_usrreqs
236 },
237 #endif /* INET */
238 { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
239 encap6_input, rip6_output, 0, rip6_ctloutput,
240 0,
241 encap_init, 0, 0, 0,
242 &rip6_usrreqs
243 },
244 { SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
245 pim6_input, rip6_output, 0, rip6_ctloutput,
246 0,
247 0, 0, 0, 0,
248 &rip6_usrreqs
249 },
250 #ifdef DEV_CARP
251 { SOCK_RAW, &inet6domain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR,
252 carp6_input, rip6_output, 0, rip6_ctloutput,
253 0,
254 0, 0, 0, 0,
255 &rip6_usrreqs
256 },
257 #endif /* DEV_CARP */
258 /* raw wildcard */
259 { SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR,
260 rip6_input, rip6_output, 0, rip6_ctloutput,
261 0,
262 0, 0, 0, 0,
263 &rip6_usrreqs
264 },
265 };
266
267 extern int in6_inithead __P((void **, int));
268
269 struct domain inet6domain =
270 { AF_INET6, "internet6", 0, 0, 0,
271 (struct protosw *)inet6sw,
272 (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0,
273 in6_inithead,
274 offsetof(struct sockaddr_in6, sin6_addr) << 3,
275 sizeof(struct sockaddr_in6),
276 in6_domifattach, in6_domifdetach, };
277
278 DOMAIN_SET(inet6);
279
280 /*
281 * Internet configuration info
282 */
283 #ifndef IPV6FORWARDING
284 #ifdef GATEWAY6
285 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */
286 #else
287 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */
288 #endif /* GATEWAY6 */
289 #endif /* !IPV6FORWARDING */
290
291 #ifndef IPV6_SENDREDIRECTS
292 #define IPV6_SENDREDIRECTS 1
293 #endif
294
295 int ip6_forwarding = IPV6FORWARDING; /* act as router? */
296 int ip6_sendredirects = IPV6_SENDREDIRECTS;
297 int ip6_defhlim = IPV6_DEFHLIM;
298 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
299 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */
300 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */
301 int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */
302 int ip6_log_interval = 5;
303 int ip6_hdrnestlimit = 50; /* appropriate? */
304 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */
305 int ip6_auto_flowlabel = 1;
306 int ip6_gif_hlim = 0;
307 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
308 int ip6_rr_prune = 5; /* router renumbering prefix
309 * walk list every 5 sec. */
310 int ip6_v6only = 1;
311
312 int ip6_keepfaith = 0;
313 time_t ip6_log_time = (time_t)0L;
314 #ifdef IPSTEALTH
315 int ip6stealth = 0;
316 #endif
317 int ip6_rthdr0_allowed = 0; /* Disallow use of routing header 0 */
318 /* by default. */
319
320 /* icmp6 */
321 /*
322 * BSDI4 defines these variables in in_proto.c...
323 * XXX: what if we don't define INET? Should we define pmtu6_expire
324 * or so? (jinmei@kame.net 19990310)
325 */
326 int pmtu_expire = 60*10;
327 int pmtu_probe = 60*2;
328
329 /* raw IP6 parameters */
330 /*
331 * Nominal space allocated to a raw ip socket.
332 */
333 #define RIPV6SNDQ 8192
334 #define RIPV6RCVQ 8192
335
336 u_long rip6_sendspace = RIPV6SNDQ;
337 u_long rip6_recvspace = RIPV6RCVQ;
338
339 /* ICMPV6 parameters */
340 int icmp6_rediraccept = 1; /* accept and process redirects */
341 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */
342 int icmp6errppslim = 100; /* 100pps */
343 int icmp6_nodeinfo = 3; /* enable/disable NI response */
344
345 /* UDP on IP6 parameters */
346 int udp6_sendspace = 9216; /* really max datagram size */
347 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
348 /* 40 1K datagrams */
349
350 /*
351 * sysctl related items.
352 */
353 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0,
354 "Internet6 Family");
355
356 /* net.inet6 */
357 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6");
358 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6");
359 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6");
360 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6");
361 #ifdef IPSEC
362 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
363 #endif /* IPSEC */
364
365 /* net.inet6.ip6 */
366 static int
367 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
368 {
369 int error = 0;
370 int old;
371
372 error = SYSCTL_OUT(req, arg1, sizeof(int));
373 if (error || !req->newptr)
374 return (error);
375 old = ip6_temp_preferred_lifetime;
376 error = SYSCTL_IN(req, arg1, sizeof(int));
377 if (ip6_temp_preferred_lifetime <
378 ip6_desync_factor + ip6_temp_regen_advance) {
379 ip6_temp_preferred_lifetime = old;
380 return (EINVAL);
381 }
382 return (error);
383 }
384
385 static int
386 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
387 {
388 int error = 0;
389 int old;
390
391 error = SYSCTL_OUT(req, arg1, sizeof(int));
392 if (error || !req->newptr)
393 return (error);
394 old = ip6_temp_valid_lifetime;
395 error = SYSCTL_IN(req, arg1, sizeof(int));
396 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) {
397 ip6_temp_preferred_lifetime = old;
398 return (EINVAL);
399 }
400 return (error);
401 }
402
403 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING,
404 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, "");
405 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
406 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, "");
407 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
408 hlim, CTLFLAG_RW, &ip6_defhlim, 0, "");
409 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
410 &ip6stat, ip6stat, "");
411 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS,
412 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, "");
413 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
414 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, "");
415 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
416 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, "");
417 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
418 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, "");
419 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
420 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, "");
421 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
422 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, "");
423 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
424 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, "");
425 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
426 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, "");
427 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
428 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, "");
429 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
430 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "");
431 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
432 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, "");
433 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
434 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, "");
435 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
436 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, "");
437 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
438 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
439 sysctl_ip6_temppltime, "I", "");
440 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
441 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
442 sysctl_ip6_tempvltime, "I", "");
443 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
444 v6only, CTLFLAG_RW, &ip6_v6only, 0, "");
445 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
446 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, "");
447 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
448 &rip6stat, rip6stat, "");
449 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
450 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, "");
451 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS,
452 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, "");
453 #ifdef IPSTEALTH
454 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
455 &ip6stealth, 0, "");
456 #endif
457 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RTHDR0_ALLOWED,
458 rthdr0_allowed, CTLFLAG_RW, &ip6_rthdr0_allowed, 0, "");
459
460
461 /* net.inet6.icmp6 */
462 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
463 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, "");
464 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
465 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, "");
466 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
467 &icmp6stat, icmp6stat, "");
468 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
469 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, "");
470 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
471 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, "");
472 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
473 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, "");
474 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
475 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, "");
476 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
477 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, "");
478 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
479 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "");
480 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
481 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, "");
482 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
483 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, "");
484 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
485 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, "");
Cache object: e0302131b306fd8b46a48d74d8e08c78
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