in6_proto.c revision 169664
1207614Simp/* $FreeBSD: head/sys/netinet6/in6_proto.c 169664 2007-05-17 21:20:24Z jinmei $ */ 2207614Simp/* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ */ 3207614Simp 4207614Simp/*- 5207614Simp * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6207614Simp * All rights reserved. 7207614Simp * 8207614Simp * Redistribution and use in source and binary forms, with or without 9207614Simp * modification, are permitted provided that the following conditions 10207614Simp * are met: 11207614Simp * 1. Redistributions of source code must retain the above copyright 12207614Simp * notice, this list of conditions and the following disclaimer. 13207614Simp * 2. Redistributions in binary form must reproduce the above copyright 14207614Simp * notice, this list of conditions and the following disclaimer in the 15207614Simp * documentation and/or other materials provided with the distribution. 16207614Simp * 3. Neither the name of the project nor the names of its contributors 17207614Simp * may be used to endorse or promote products derived from this software 18207614Simp * without specific prior written permission. 19207614Simp * 20207614Simp * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21207614Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22207614Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23207614Simp * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24207614Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25207614Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26207614Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27207614Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28207614Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29207614Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30207614Simp * SUCH DAMAGE. 31207614Simp */ 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#include "opt_sctp.h" 70 71#include <sys/param.h> 72#include <sys/socket.h> 73#include <sys/socketvar.h> 74#include <sys/protosw.h> 75#include <sys/kernel.h> 76#include <sys/domain.h> 77#include <sys/mbuf.h> 78#include <sys/systm.h> 79#include <sys/sysctl.h> 80 81#include <net/if.h> 82#include <net/radix.h> 83#include <net/route.h> 84 85#include <netinet/in.h> 86#include <netinet/in_systm.h> 87#include <netinet/in_var.h> 88#include <netinet/ip_encap.h> 89#include <netinet/ip.h> 90#include <netinet/ip_var.h> 91#include <netinet/ip6.h> 92#include <netinet6/ip6_var.h> 93#include <netinet/icmp6.h> 94 95#include <netinet/tcp.h> 96#include <netinet/tcp_timer.h> 97#include <netinet/tcp_var.h> 98#include <netinet/udp.h> 99#include <netinet/udp_var.h> 100#include <netinet6/tcp6_var.h> 101#include <netinet6/raw_ip6.h> 102#include <netinet6/udp6_var.h> 103#include <netinet6/pim6_var.h> 104#include <netinet6/nd6.h> 105 106#ifdef IPSEC 107#include <netinet6/ipsec.h> 108#ifdef INET6 109#include <netinet6/ipsec6.h> 110#endif 111#include <netinet6/ah.h> 112#ifdef INET6 113#include <netinet6/ah6.h> 114#endif 115#ifdef IPSEC_ESP 116#include <netinet6/esp.h> 117#ifdef INET6 118#include <netinet6/esp6.h> 119#endif 120#endif 121#include <netinet6/ipcomp.h> 122#ifdef INET6 123#include <netinet6/ipcomp6.h> 124#endif 125#endif /* IPSEC */ 126 127#ifdef DEV_CARP 128#include <netinet/ip_carp.h> 129#endif 130 131#ifdef SCTP 132#include <netinet/in_pcb.h> 133#include <netinet/sctp_pcb.h> 134#include <netinet/sctp.h> 135#include <netinet/sctp_var.h> 136#include <netinet6/sctp6_var.h> 137#endif /* SCTP */ 138 139#ifdef FAST_IPSEC 140#include <netipsec/ipsec6.h> 141#define IPSEC 142#define IPSEC_ESP 143#define ah6_input ipsec6_common_input 144#define esp6_input ipsec6_common_input 145#define ipcomp6_input ipsec6_common_input 146#endif /* FAST_IPSEC */ 147 148#include <netinet6/ip6protosw.h> 149 150/* 151 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 152 */ 153 154extern struct domain inet6domain; 155static struct pr_usrreqs nousrreqs; 156 157#define PR_LISTEN 0 158#define PR_ABRTACPTDIS 0 159 160struct ip6protosw inet6sw[] = { 161{ 162 .pr_type = 0, 163 .pr_domain = &inet6domain, 164 .pr_protocol = IPPROTO_IPV6, 165 .pr_init = ip6_init, 166 .pr_slowtimo = frag6_slowtimo, 167 .pr_drain = frag6_drain, 168 .pr_usrreqs = &nousrreqs, 169}, 170{ 171 .pr_type = SOCK_DGRAM, 172 .pr_domain = &inet6domain, 173 .pr_protocol = IPPROTO_UDP, 174 .pr_flags = PR_ATOMIC|PR_ADDR, 175 .pr_input = udp6_input, 176 .pr_ctlinput = udp6_ctlinput, 177 .pr_ctloutput = ip6_ctloutput, 178 .pr_usrreqs = &udp6_usrreqs, 179}, 180{ 181 .pr_type = SOCK_STREAM, 182 .pr_domain = &inet6domain, 183 .pr_protocol = IPPROTO_TCP, 184 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 185 .pr_input = tcp6_input, 186 .pr_ctlinput = tcp6_ctlinput, 187 .pr_ctloutput = tcp_ctloutput, 188#ifndef INET /* don't call initialization and timeout routines twice */ 189 .pr_init = tcp_init, 190 .pr_fasttimo = tcp_fasttimo, 191 .pr_slowtimo = tcp_slowtimo, 192#endif 193 .pr_drain = tcp_drain, 194 .pr_usrreqs = &tcp6_usrreqs, 195}, 196#ifdef SCTP 197{ 198 .pr_type = SOCK_DGRAM, 199 .pr_domain = &inet6domain, 200 .pr_protocol = IPPROTO_SCTP, 201 .pr_flags = PR_WANTRCVD, 202 .pr_input = sctp6_input, 203 .pr_ctlinput = sctp6_ctlinput, 204 .pr_ctloutput = sctp_ctloutput, 205 .pr_drain = sctp_drain, 206 .pr_usrreqs = &sctp6_usrreqs 207}, 208{ 209 .pr_type = SOCK_SEQPACKET, 210 .pr_domain = &inet6domain, 211 .pr_protocol = IPPROTO_SCTP, 212 .pr_flags = PR_WANTRCVD, 213 .pr_input = sctp6_input, 214 .pr_ctlinput = sctp6_ctlinput, 215 .pr_ctloutput = sctp_ctloutput, 216 .pr_drain = sctp_drain, 217 .pr_usrreqs = &sctp6_usrreqs 218}, 219 220{ 221 .pr_type = SOCK_STREAM, 222 .pr_domain = &inet6domain, 223 .pr_protocol = IPPROTO_SCTP, 224 .pr_flags = PR_WANTRCVD, 225 .pr_input = sctp6_input, 226 .pr_ctlinput = sctp6_ctlinput, 227 .pr_ctloutput = sctp_ctloutput, 228 .pr_drain = sctp_drain, 229 .pr_usrreqs = &sctp6_usrreqs 230}, 231#endif /* SCTP */ 232{ 233 .pr_type = SOCK_RAW, 234 .pr_domain = &inet6domain, 235 .pr_protocol = IPPROTO_RAW, 236 .pr_flags = PR_ATOMIC|PR_ADDR, 237 .pr_input = rip6_input, 238 .pr_output = rip6_output, 239 .pr_ctlinput = rip6_ctlinput, 240 .pr_ctloutput = rip6_ctloutput, 241 .pr_usrreqs = &rip6_usrreqs 242}, 243{ 244 .pr_type = SOCK_RAW, 245 .pr_domain = &inet6domain, 246 .pr_protocol = IPPROTO_ICMPV6, 247 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 248 .pr_input = icmp6_input, 249 .pr_output = rip6_output, 250 .pr_ctlinput = rip6_ctlinput, 251 .pr_ctloutput = rip6_ctloutput, 252 .pr_init = icmp6_init, 253 .pr_fasttimo = icmp6_fasttimo, 254 .pr_usrreqs = &rip6_usrreqs 255}, 256{ 257 .pr_type = SOCK_RAW, 258 .pr_domain = &inet6domain, 259 .pr_protocol = IPPROTO_DSTOPTS, 260 .pr_flags = PR_ATOMIC|PR_ADDR, 261 .pr_input = dest6_input, 262 .pr_usrreqs = &nousrreqs 263}, 264{ 265 .pr_type = SOCK_RAW, 266 .pr_domain = &inet6domain, 267 .pr_protocol = IPPROTO_ROUTING, 268 .pr_flags = PR_ATOMIC|PR_ADDR, 269 .pr_input = route6_input, 270 .pr_usrreqs = &nousrreqs 271}, 272{ 273 .pr_type = SOCK_RAW, 274 .pr_domain = &inet6domain, 275 .pr_protocol = IPPROTO_FRAGMENT, 276 .pr_flags = PR_ATOMIC|PR_ADDR, 277 .pr_input = frag6_input, 278 .pr_usrreqs = &nousrreqs 279}, 280#ifdef IPSEC 281{ 282 .pr_type = SOCK_RAW, 283 .pr_domain = &inet6domain, 284 .pr_protocol = IPPROTO_AH, 285 .pr_flags = PR_ATOMIC|PR_ADDR, 286 .pr_input = ah6_input, 287 .pr_usrreqs = &nousrreqs, 288}, 289#ifdef IPSEC_ESP 290{ 291 .pr_type = SOCK_RAW, 292 .pr_domain = &inet6domain, 293 .pr_protocol = IPPROTO_ESP, 294 .pr_flags = PR_ATOMIC|PR_ADDR, 295 .pr_input = esp6_input, 296 .pr_ctlinput = esp6_ctlinput, 297 .pr_usrreqs = &nousrreqs, 298}, 299#endif 300{ 301 .pr_type = SOCK_RAW, 302 .pr_domain = &inet6domain, 303 .pr_protocol = IPPROTO_IPCOMP, 304 .pr_flags = PR_ATOMIC|PR_ADDR, 305 .pr_input = ipcomp6_input, 306 .pr_usrreqs = &nousrreqs, 307}, 308#endif /* IPSEC */ 309#ifdef INET 310{ 311 .pr_type = SOCK_RAW, 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 320}, 321#endif /* INET */ 322{ 323 .pr_type = SOCK_RAW, 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 332}, 333{ 334 .pr_type = SOCK_RAW, 335 .pr_domain = &inet6domain, 336 .pr_protocol = IPPROTO_PIM, 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_usrreqs = &rip6_usrreqs 342}, 343#ifdef DEV_CARP 344{ 345 .pr_type = SOCK_RAW, 346 .pr_domain = &inet6domain, 347 .pr_protocol = IPPROTO_CARP, 348 .pr_flags = PR_ATOMIC|PR_ADDR, 349 .pr_input = carp6_input, 350 .pr_output = rip6_output, 351 .pr_ctloutput = rip6_ctloutput, 352 .pr_usrreqs = &rip6_usrreqs 353}, 354#endif /* DEV_CARP */ 355/* raw wildcard */ 356{ 357 .pr_type = SOCK_RAW, 358 .pr_domain = &inet6domain, 359 .pr_flags = PR_ATOMIC|PR_ADDR, 360 .pr_input = rip6_input, 361 .pr_output = rip6_output, 362 .pr_ctloutput = rip6_ctloutput, 363 .pr_usrreqs = &rip6_usrreqs 364}, 365}; 366 367extern int in6_inithead __P((void **, int)); 368 369struct domain inet6domain = { 370 .dom_family = AF_INET6, 371 .dom_name = "internet6", 372 .dom_protosw = (struct protosw *)inet6sw, 373 .dom_protoswNPROTOSW = (struct protosw *) 374 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 375 .dom_rtattach = in6_inithead, 376 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 377 .dom_maxrtkey = sizeof(struct sockaddr_in6), 378 .dom_ifattach = in6_domifattach, 379 .dom_ifdetach = in6_domifdetach 380}; 381 382DOMAIN_SET(inet6); 383 384/* 385 * Internet configuration info 386 */ 387#ifndef IPV6FORWARDING 388#ifdef GATEWAY6 389#define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 390#else 391#define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 392#endif /* GATEWAY6 */ 393#endif /* !IPV6FORWARDING */ 394 395#ifndef IPV6_SENDREDIRECTS 396#define IPV6_SENDREDIRECTS 1 397#endif 398 399int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 400int ip6_sendredirects = IPV6_SENDREDIRECTS; 401int ip6_defhlim = IPV6_DEFHLIM; 402int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 403int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 404int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 405int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */ 406int ip6_log_interval = 5; 407int ip6_hdrnestlimit = 15; /* How many header options will we process? */ 408int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 409int ip6_auto_flowlabel = 1; 410int ip6_gif_hlim = 0; 411int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 412int ip6_rr_prune = 5; /* router renumbering prefix 413 * walk list every 5 sec. */ 414int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ 415int ip6_v6only = 1; 416 417int ip6_keepfaith = 0; 418time_t ip6_log_time = (time_t)0L; 419#ifdef IPSTEALTH 420int ip6stealth = 0; 421#endif 422 423/* icmp6 */ 424/* 425 * BSDI4 defines these variables in in_proto.c... 426 * XXX: what if we don't define INET? Should we define pmtu6_expire 427 * or so? (jinmei@kame.net 19990310) 428 */ 429int pmtu_expire = 60*10; 430int pmtu_probe = 60*2; 431 432/* raw IP6 parameters */ 433/* 434 * Nominal space allocated to a raw ip socket. 435 */ 436#define RIPV6SNDQ 8192 437#define RIPV6RCVQ 8192 438 439u_long rip6_sendspace = RIPV6SNDQ; 440u_long rip6_recvspace = RIPV6RCVQ; 441 442/* ICMPV6 parameters */ 443int icmp6_rediraccept = 1; /* accept and process redirects */ 444int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 445int icmp6errppslim = 100; /* 100pps */ 446/* control how to respond to NI queries */ 447int icmp6_nodeinfo = (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK); 448 449/* UDP on IP6 parameters */ 450int udp6_sendspace = 9216; /* really max datagram size */ 451int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 452 /* 40 1K datagrams */ 453 454/* 455 * sysctl related items. 456 */ 457SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 458 "Internet6 Family"); 459 460/* net.inet6 */ 461SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 462SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 463SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 464SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 465#ifdef SCTP 466SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 467#endif 468#ifdef IPSEC 469SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 470#endif /* IPSEC */ 471 472/* net.inet6.ip6 */ 473static int 474sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 475{ 476 int error = 0; 477 int old; 478 479 error = SYSCTL_OUT(req, arg1, sizeof(int)); 480 if (error || !req->newptr) 481 return (error); 482 old = ip6_temp_preferred_lifetime; 483 error = SYSCTL_IN(req, arg1, sizeof(int)); 484 if (ip6_temp_preferred_lifetime < 485 ip6_desync_factor + ip6_temp_regen_advance) { 486 ip6_temp_preferred_lifetime = old; 487 return (EINVAL); 488 } 489 return (error); 490} 491 492static int 493sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 494{ 495 int error = 0; 496 int old; 497 498 error = SYSCTL_OUT(req, arg1, sizeof(int)); 499 if (error || !req->newptr) 500 return (error); 501 old = ip6_temp_valid_lifetime; 502 error = SYSCTL_IN(req, arg1, sizeof(int)); 503 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 504 ip6_temp_preferred_lifetime = old; 505 return (EINVAL); 506 } 507 return (error); 508} 509 510SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 511 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 512SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 513 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 514SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 515 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 516SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 517 &ip6stat, ip6stat, ""); 518SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 519 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 520SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 521 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 522SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 523 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 524SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 525 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 526SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 527 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 528SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 529 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 530SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 531 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 532SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 533 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 534SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 535 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 536SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 537 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 538SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 539 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); 540SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 541 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); 542SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, 543 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); 544SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 545 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 546 sysctl_ip6_temppltime, "I", ""); 547SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 548 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 549 sysctl_ip6_tempvltime, "I", ""); 550SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, 551 v6only, CTLFLAG_RW, &ip6_v6only, 0, ""); 552TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal); 553SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 554 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); 555SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 556 &rip6stat, rip6stat, ""); 557SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, 558 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, ""); 559SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, 560 use_defaultzone, CTLFLAG_RW, &ip6_use_defzone, 0,""); 561SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, 562 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, ""); 563SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, 564 mcast_pmtu, CTLFLAG_RW, &ip6_mcast_pmtu, 0, ""); 565#ifdef IPSTEALTH 566SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 567 &ip6stealth, 0, ""); 568#endif 569 570/* net.inet6.icmp6 */ 571SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 572 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 573SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 574 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 575SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 576 &icmp6stat, icmp6stat, ""); 577SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 578 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 579SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 580 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 581SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 582 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 583SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 584 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 585SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 586 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 587SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 588 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, ""); 589SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 590 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); 591SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 592 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); 593SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 594 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, ""); 595