in6_proto.c revision 185895
1/*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ 30 */ 31 32/*- 33 * Copyright (c) 1982, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 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. 47 * 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 58 * SUCH DAMAGE. 59 * 60 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 61 */ 62 63#include <sys/cdefs.h> 64__FBSDID("$FreeBSD: head/sys/netinet6/in6_proto.c 185895 2008-12-10 23:12:39Z zec $"); 65 66#include "opt_inet.h" 67#include "opt_inet6.h" 68#include "opt_ipsec.h" 69#include "opt_ipstealth.h" 70#include "opt_carp.h" 71#include "opt_sctp.h" 72#include "opt_mpath.h" 73 74#include <sys/param.h> 75#include <sys/socket.h> 76#include <sys/socketvar.h> 77#include <sys/proc.h> 78#include <sys/protosw.h> 79#include <sys/kernel.h> 80#include <sys/domain.h> 81#include <sys/mbuf.h> 82#include <sys/systm.h> 83#include <sys/sysctl.h> 84#include <sys/vimage.h> 85 86#include <net/if.h> 87#include <net/radix.h> 88#include <net/route.h> 89#ifdef RADIX_MPATH 90#include <net/radix_mpath.h> 91#endif 92 93#include <netinet/in.h> 94#include <netinet/in_systm.h> 95#include <netinet/in_var.h> 96#include <netinet/ip_encap.h> 97#include <netinet/ip.h> 98#include <netinet/ip_var.h> 99#include <netinet/ip6.h> 100#include <netinet6/ip6_var.h> 101#include <netinet/icmp6.h> 102 103#include <netinet/tcp.h> 104#include <netinet/tcp_timer.h> 105#include <netinet/tcp_var.h> 106#include <netinet/udp.h> 107#include <netinet/udp_var.h> 108#include <netinet6/tcp6_var.h> 109#include <netinet6/raw_ip6.h> 110#include <netinet6/udp6_var.h> 111#include <netinet6/pim6_var.h> 112#include <netinet6/nd6.h> 113 114#ifdef DEV_CARP 115#include <netinet/ip_carp.h> 116#endif 117 118#ifdef SCTP 119#include <netinet/in_pcb.h> 120#include <netinet/sctp_pcb.h> 121#include <netinet/sctp.h> 122#include <netinet/sctp_var.h> 123#include <netinet6/sctp6_var.h> 124#endif /* SCTP */ 125 126#ifdef IPSEC 127#include <netipsec/ipsec.h> 128#include <netipsec/ipsec6.h> 129#endif /* IPSEC */ 130 131#include <netinet6/ip6protosw.h> 132#include <netinet6/vinet6.h> 133 134/* 135 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 136 */ 137 138extern struct domain inet6domain; 139static struct pr_usrreqs nousrreqs; 140 141#define PR_LISTEN 0 142#define PR_ABRTACPTDIS 0 143 144struct ip6protosw inet6sw[] = { 145{ 146 .pr_type = 0, 147 .pr_domain = &inet6domain, 148 .pr_protocol = IPPROTO_IPV6, 149 .pr_init = ip6_init, 150 .pr_slowtimo = frag6_slowtimo, 151 .pr_drain = frag6_drain, 152 .pr_usrreqs = &nousrreqs, 153}, 154{ 155 .pr_type = SOCK_DGRAM, 156 .pr_domain = &inet6domain, 157 .pr_protocol = IPPROTO_UDP, 158 .pr_flags = PR_ATOMIC|PR_ADDR, 159 .pr_input = udp6_input, 160 .pr_ctlinput = udp6_ctlinput, 161 .pr_ctloutput = ip6_ctloutput, 162 .pr_usrreqs = &udp6_usrreqs, 163}, 164{ 165 .pr_type = SOCK_STREAM, 166 .pr_domain = &inet6domain, 167 .pr_protocol = IPPROTO_TCP, 168 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 169 .pr_input = tcp6_input, 170 .pr_ctlinput = tcp6_ctlinput, 171 .pr_ctloutput = tcp_ctloutput, 172#ifndef INET /* don't call initialization and timeout routines twice */ 173 .pr_init = tcp_init, 174 .pr_fasttimo = tcp_fasttimo, 175 .pr_slowtimo = tcp_slowtimo, 176#endif 177 .pr_drain = tcp_drain, 178 .pr_usrreqs = &tcp6_usrreqs, 179}, 180#ifdef SCTP 181{ 182 .pr_type = SOCK_DGRAM, 183 .pr_domain = &inet6domain, 184 .pr_protocol = IPPROTO_SCTP, 185 .pr_flags = PR_WANTRCVD, 186 .pr_input = sctp6_input, 187 .pr_ctlinput = sctp6_ctlinput, 188 .pr_ctloutput = sctp_ctloutput, 189 .pr_drain = sctp_drain, 190 .pr_usrreqs = &sctp6_usrreqs 191}, 192{ 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 .pr_usrreqs = &sctp6_usrreqs 202}, 203 204{ 205 .pr_type = SOCK_STREAM, 206 .pr_domain = &inet6domain, 207 .pr_protocol = IPPROTO_SCTP, 208 .pr_flags = PR_WANTRCVD, 209 .pr_input = sctp6_input, 210 .pr_ctlinput = sctp6_ctlinput, 211 .pr_ctloutput = sctp_ctloutput, 212 .pr_drain = sctp_drain, 213 .pr_usrreqs = &sctp6_usrreqs 214}, 215#endif /* SCTP */ 216{ 217 .pr_type = SOCK_RAW, 218 .pr_domain = &inet6domain, 219 .pr_protocol = IPPROTO_RAW, 220 .pr_flags = PR_ATOMIC|PR_ADDR, 221 .pr_input = rip6_input, 222 .pr_output = rip6_output, 223 .pr_ctlinput = rip6_ctlinput, 224 .pr_ctloutput = rip6_ctloutput, 225 .pr_usrreqs = &rip6_usrreqs 226}, 227{ 228 .pr_type = SOCK_RAW, 229 .pr_domain = &inet6domain, 230 .pr_protocol = IPPROTO_ICMPV6, 231 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 232 .pr_input = icmp6_input, 233 .pr_output = rip6_output, 234 .pr_ctlinput = rip6_ctlinput, 235 .pr_ctloutput = rip6_ctloutput, 236 .pr_init = icmp6_init, 237 .pr_fasttimo = icmp6_fasttimo, 238 .pr_usrreqs = &rip6_usrreqs 239}, 240{ 241 .pr_type = SOCK_RAW, 242 .pr_domain = &inet6domain, 243 .pr_protocol = IPPROTO_DSTOPTS, 244 .pr_flags = PR_ATOMIC|PR_ADDR, 245 .pr_input = dest6_input, 246 .pr_usrreqs = &nousrreqs 247}, 248{ 249 .pr_type = SOCK_RAW, 250 .pr_domain = &inet6domain, 251 .pr_protocol = IPPROTO_ROUTING, 252 .pr_flags = PR_ATOMIC|PR_ADDR, 253 .pr_input = route6_input, 254 .pr_usrreqs = &nousrreqs 255}, 256{ 257 .pr_type = SOCK_RAW, 258 .pr_domain = &inet6domain, 259 .pr_protocol = IPPROTO_FRAGMENT, 260 .pr_flags = PR_ATOMIC|PR_ADDR, 261 .pr_input = frag6_input, 262 .pr_usrreqs = &nousrreqs 263}, 264#ifdef IPSEC 265{ 266 .pr_type = SOCK_RAW, 267 .pr_domain = &inet6domain, 268 .pr_protocol = IPPROTO_AH, 269 .pr_flags = PR_ATOMIC|PR_ADDR, 270 .pr_input = ipsec6_common_input, 271 .pr_usrreqs = &nousrreqs, 272}, 273{ 274 .pr_type = SOCK_RAW, 275 .pr_domain = &inet6domain, 276 .pr_protocol = IPPROTO_ESP, 277 .pr_flags = PR_ATOMIC|PR_ADDR, 278 .pr_input = ipsec6_common_input, 279 .pr_ctlinput = esp6_ctlinput, 280 .pr_usrreqs = &nousrreqs, 281}, 282{ 283 .pr_type = SOCK_RAW, 284 .pr_domain = &inet6domain, 285 .pr_protocol = IPPROTO_IPCOMP, 286 .pr_flags = PR_ATOMIC|PR_ADDR, 287 .pr_input = ipsec6_common_input, 288 .pr_usrreqs = &nousrreqs, 289}, 290#endif /* IPSEC */ 291#ifdef INET 292{ 293 .pr_type = SOCK_RAW, 294 .pr_domain = &inet6domain, 295 .pr_protocol = IPPROTO_IPV4, 296 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 297 .pr_input = encap6_input, 298 .pr_output = rip6_output, 299 .pr_ctloutput = rip6_ctloutput, 300 .pr_init = encap_init, 301 .pr_usrreqs = &rip6_usrreqs 302}, 303#endif /* INET */ 304{ 305 .pr_type = SOCK_RAW, 306 .pr_domain = &inet6domain, 307 .pr_protocol = IPPROTO_IPV6, 308 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 309 .pr_input = encap6_input, 310 .pr_output = rip6_output, 311 .pr_ctloutput = rip6_ctloutput, 312 .pr_init = encap_init, 313 .pr_usrreqs = &rip6_usrreqs 314}, 315{ 316 .pr_type = SOCK_RAW, 317 .pr_domain = &inet6domain, 318 .pr_protocol = IPPROTO_PIM, 319 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 320 .pr_input = encap6_input, 321 .pr_output = rip6_output, 322 .pr_ctloutput = rip6_ctloutput, 323 .pr_usrreqs = &rip6_usrreqs 324}, 325#ifdef DEV_CARP 326{ 327 .pr_type = SOCK_RAW, 328 .pr_domain = &inet6domain, 329 .pr_protocol = IPPROTO_CARP, 330 .pr_flags = PR_ATOMIC|PR_ADDR, 331 .pr_input = carp6_input, 332 .pr_output = rip6_output, 333 .pr_ctloutput = rip6_ctloutput, 334 .pr_usrreqs = &rip6_usrreqs 335}, 336#endif /* DEV_CARP */ 337/* raw wildcard */ 338{ 339 .pr_type = SOCK_RAW, 340 .pr_domain = &inet6domain, 341 .pr_flags = PR_ATOMIC|PR_ADDR, 342 .pr_input = rip6_input, 343 .pr_output = rip6_output, 344 .pr_ctloutput = rip6_ctloutput, 345 .pr_usrreqs = &rip6_usrreqs 346}, 347}; 348 349extern int in6_inithead(void **, int); 350 351struct domain inet6domain = { 352 .dom_family = AF_INET6, 353 .dom_name = "internet6", 354 .dom_protosw = (struct protosw *)inet6sw, 355 .dom_protoswNPROTOSW = (struct protosw *) 356 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 357#ifdef RADIX_MPATH 358 .dom_rtattach = rn6_mpath_inithead, 359#else 360 .dom_rtattach = in6_inithead, 361#endif 362 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 363 .dom_maxrtkey = sizeof(struct sockaddr_in6), 364 .dom_ifattach = in6_domifattach, 365 .dom_ifdetach = in6_domifdetach 366}; 367 368DOMAIN_SET(inet6); 369 370/* 371 * Internet configuration info 372 */ 373#ifdef VIMAGE_GLOBALS 374int ip6_forwarding; 375int ip6_sendredirects; 376int ip6_defhlim; 377int ip6_defmcasthlim; 378int ip6_accept_rtadv; 379int ip6_maxfragpackets; 380int ip6_maxfrags; 381int ip6_log_interval; 382int ip6_hdrnestlimit; 383int ip6_dad_count; 384int ip6_auto_flowlabel; 385int ip6_use_deprecated; 386int ip6_rr_prune; 387int ip6_mcast_pmtu; 388int ip6_v6only; 389int ip6_keepfaith; 390time_t ip6_log_time; 391int ip6stealth; 392int nd6_onlink_ns_rfc4861; 393#endif 394 395#ifdef VIMAGE_GLOBALS 396/* icmp6 */ 397/* 398 * BSDI4 defines these variables in in_proto.c... 399 * XXX: what if we don't define INET? Should we define pmtu6_expire 400 * or so? (jinmei@kame.net 19990310) 401 */ 402int pmtu_expire; 403int pmtu_probe; 404 405/* raw IP6 parameters */ 406/* 407 * Nominal space allocated to a raw ip socket. 408 */ 409u_long rip6_sendspace; 410u_long rip6_recvspace; 411 412/* ICMPV6 parameters */ 413int icmp6_rediraccept; 414int icmp6_redirtimeout; 415int icmp6errppslim; 416/* control how to respond to NI queries */ 417int icmp6_nodeinfo; 418 419/* UDP on IP6 parameters */ 420int udp6_sendspace; 421int udp6_recvspace; 422#endif /* VIMAGE_GLOBALS */ 423 424/* 425 * sysctl related items. 426 */ 427SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 428 "Internet6 Family"); 429 430/* net.inet6 */ 431SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 432SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 433SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 434SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 435#ifdef SCTP 436SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 437#endif 438#ifdef IPSEC 439SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 440#endif /* IPSEC */ 441 442/* net.inet6.ip6 */ 443static int 444sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 445{ 446 INIT_VNET_INET6(curvnet); 447 int error = 0; 448 int old; 449 450 error = SYSCTL_OUT(req, arg1, sizeof(int)); 451 if (error || !req->newptr) 452 return (error); 453 old = V_ip6_temp_preferred_lifetime; 454 error = SYSCTL_IN(req, arg1, sizeof(int)); 455 if (V_ip6_temp_preferred_lifetime < 456 V_ip6_desync_factor + V_ip6_temp_regen_advance) { 457 V_ip6_temp_preferred_lifetime = old; 458 return (EINVAL); 459 } 460 return (error); 461} 462 463static int 464sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 465{ 466 INIT_VNET_INET6(curvnet); 467 int error = 0; 468 int old; 469 470 error = SYSCTL_OUT(req, arg1, sizeof(int)); 471 if (error || !req->newptr) 472 return (error); 473 old = V_ip6_temp_valid_lifetime; 474 error = SYSCTL_IN(req, arg1, sizeof(int)); 475 if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) { 476 V_ip6_temp_preferred_lifetime = old; 477 return (EINVAL); 478 } 479 return (error); 480} 481 482SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_FORWARDING, 483 forwarding, CTLFLAG_RW, ip6_forwarding, 0, ""); 484SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 485 redirect, CTLFLAG_RW, ip6_sendredirects, 0, ""); 486SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_DEFHLIM, 487 hlim, CTLFLAG_RW, ip6_defhlim, 0, ""); 488SYSCTL_V_STRUCT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_STATS, stats, 489 CTLFLAG_RD, ip6stat, ip6stat, ""); 490SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 491 maxfragpackets, CTLFLAG_RW, ip6_maxfragpackets, 0, ""); 492SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 493 accept_rtadv, CTLFLAG_RW, ip6_accept_rtadv, 0, ""); 494SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_KEEPFAITH, 495 keepfaith, CTLFLAG_RW, ip6_keepfaith, 0, ""); 496SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 497 log_interval, CTLFLAG_RW, ip6_log_interval, 0, ""); 498SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 499 hdrnestlimit, CTLFLAG_RW, ip6_hdrnestlimit, 0, ""); 500SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_DAD_COUNT, 501 dad_count, CTLFLAG_RW, ip6_dad_count, 0, ""); 502SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 503 auto_flowlabel, CTLFLAG_RW, ip6_auto_flowlabel, 0, ""); 504SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 505 defmcasthlim, CTLFLAG_RW, ip6_defmcasthlim, 0, ""); 506SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 507 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 508SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 509 use_deprecated, CTLFLAG_RW, ip6_use_deprecated, 0, ""); 510SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RR_PRUNE, 511 rr_prune, CTLFLAG_RW, ip6_rr_prune, 0, ""); 512SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_USETEMPADDR, 513 use_tempaddr, CTLFLAG_RW, ip6_use_tempaddr, 0, ""); 514SYSCTL_V_OID(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 515 CTLTYPE_INT|CTLFLAG_RW, ip6_temp_preferred_lifetime, 0, 516 sysctl_ip6_temppltime, "I", ""); 517SYSCTL_V_OID(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 518 CTLTYPE_INT|CTLFLAG_RW, ip6_temp_valid_lifetime, 0, 519 sysctl_ip6_tempvltime, "I", ""); 520SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_V6ONLY, 521 v6only, CTLFLAG_RW, ip6_v6only, 0, ""); 522SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 523 auto_linklocal, CTLFLAG_RW, ip6_auto_linklocal, 0, ""); 524SYSCTL_V_STRUCT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_RIP6STATS, 525 rip6stats, CTLFLAG_RD, rip6stat, rip6stat, ""); 526SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, 527 prefer_tempaddr, CTLFLAG_RW, ip6_prefer_tempaddr, 0, ""); 528SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, 529 use_defaultzone, CTLFLAG_RW, ip6_use_defzone, 0,""); 530SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_MAXFRAGS, 531 maxfrags, CTLFLAG_RW, ip6_maxfrags, 0, ""); 532SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_MCAST_PMTU, 533 mcast_pmtu, CTLFLAG_RW, ip6_mcast_pmtu, 0, ""); 534#ifdef IPSTEALTH 535SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_ip6, IPV6CTL_STEALTH, 536 stealth, CTLFLAG_RW, ip6stealth, 0, ""); 537#endif 538 539/* net.inet6.icmp6 */ 540SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 541 rediraccept, CTLFLAG_RW, icmp6_rediraccept, 0, ""); 542SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 543 redirtimeout, CTLFLAG_RW, icmp6_redirtimeout, 0, ""); 544SYSCTL_V_STRUCT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_STATS, 545 stats, CTLFLAG_RD, icmp6stat, icmp6stat, ""); 546SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 547 nd6_prune, CTLFLAG_RW, nd6_prune, 0, ""); 548SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 549 nd6_delay, CTLFLAG_RW, nd6_delay, 0, ""); 550SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 551 nd6_umaxtries, CTLFLAG_RW, nd6_umaxtries, 0, ""); 552SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 553 nd6_mmaxtries, CTLFLAG_RW, nd6_mmaxtries, 0, ""); 554SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 555 nd6_useloopback, CTLFLAG_RW, nd6_useloopback, 0, ""); 556SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_NODEINFO, 557 nodeinfo, CTLFLAG_RW, icmp6_nodeinfo, 0, ""); 558SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 559 errppslimit, CTLFLAG_RW, icmp6errppslim, 0, ""); 560SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 561 nd6_maxnudhint, CTLFLAG_RW, nd6_maxnudhint, 0, ""); 562SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 563 nd6_debug, CTLFLAG_RW, nd6_debug, 0, ""); 564 565SYSCTL_V_INT(V_NET, vnet_inet6, _net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, 566 nd6_onlink_ns_rfc4861, CTLFLAG_RW, nd6_onlink_ns_rfc4861, 0, 567 "Accept 'on-link' nd6 NS in compliance with RFC 4861."); 568