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: releng/10.3/sys/netinet6/in6_proto.c 284066 2015-06-06 12:44:42Z ae $"); 65 66#include "opt_inet.h" 67#include "opt_inet6.h" 68#include "opt_ipsec.h" 69#include "opt_ipstealth.h" 70#include "opt_sctp.h" 71#include "opt_mpath.h" 72#include "opt_route.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/jail.h> 80#include <sys/kernel.h> 81#include <sys/domain.h> 82#include <sys/mbuf.h> 83#include <sys/systm.h> 84#include <sys/sysctl.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 SCTP 115#include <netinet/in_pcb.h> 116#include <netinet/sctp_pcb.h> 117#include <netinet/sctp.h> 118#include <netinet/sctp_var.h> 119#include <netinet6/sctp6_var.h> 120#endif /* SCTP */ 121 122#ifdef IPSEC 123#include <netipsec/ipsec.h> 124#include <netipsec/ipsec6.h> 125#endif /* IPSEC */ 126 127#include <netinet6/ip6protosw.h> 128 129/* 130 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 131 */ 132FEATURE(inet6, "Internet Protocol version 6"); 133 134extern struct domain inet6domain; 135static struct pr_usrreqs nousrreqs; 136 137#define PR_LISTEN 0 138#define PR_ABRTACPTDIS 0 139 140/* Spacer for loadable protocols. */ 141#define IP6PROTOSPACER \ 142{ \ 143 .pr_domain = &inet6domain, \ 144 .pr_protocol = PROTO_SPACER, \ 145 .pr_usrreqs = &nousrreqs \ 146} 147 148struct ip6protosw inet6sw[] = { 149{ 150 .pr_type = 0, 151 .pr_domain = &inet6domain, 152 .pr_protocol = IPPROTO_IPV6, 153 .pr_init = ip6_init, 154#ifdef VIMAGE 155 .pr_destroy = ip6_destroy, 156#endif 157 .pr_slowtimo = frag6_slowtimo, 158 .pr_drain = frag6_drain, 159 .pr_usrreqs = &nousrreqs, 160}, 161{ 162 .pr_type = SOCK_DGRAM, 163 .pr_domain = &inet6domain, 164 .pr_protocol = IPPROTO_UDP, 165 .pr_flags = PR_ATOMIC|PR_ADDR, 166 .pr_input = udp6_input, 167 .pr_ctlinput = udp6_ctlinput, 168 .pr_ctloutput = ip6_ctloutput, 169#ifndef INET /* Do not call initialization twice. */ 170 .pr_init = udp_init, 171#endif 172 .pr_usrreqs = &udp6_usrreqs, 173}, 174{ 175 .pr_type = SOCK_STREAM, 176 .pr_domain = &inet6domain, 177 .pr_protocol = IPPROTO_TCP, 178 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 179 .pr_input = tcp6_input, 180 .pr_ctlinput = tcp6_ctlinput, 181 .pr_ctloutput = tcp_ctloutput, 182#ifndef INET /* don't call initialization and timeout routines twice */ 183 .pr_init = tcp_init, 184 .pr_slowtimo = tcp_slowtimo, 185#endif 186 .pr_drain = tcp_drain, 187 .pr_usrreqs = &tcp6_usrreqs, 188}, 189#ifdef SCTP 190{ 191 .pr_type = SOCK_SEQPACKET, 192 .pr_domain = &inet6domain, 193 .pr_protocol = IPPROTO_SCTP, 194 .pr_flags = PR_WANTRCVD, 195 .pr_input = sctp6_input, 196 .pr_ctlinput = sctp6_ctlinput, 197 .pr_ctloutput = sctp_ctloutput, 198 .pr_drain = sctp_drain, 199#ifndef INET /* Do not call initialization twice. */ 200 .pr_init = sctp_init, 201#endif 202 .pr_usrreqs = &sctp6_usrreqs 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_DGRAM, 218 .pr_domain = &inet6domain, 219 .pr_protocol = IPPROTO_UDPLITE, 220 .pr_flags = PR_ATOMIC|PR_ADDR, 221 .pr_input = udp6_input, 222 .pr_ctlinput = udplite6_ctlinput, 223 .pr_ctloutput = udp_ctloutput, 224#ifndef INET /* Do not call initialization twice. */ 225 .pr_init = udplite_init, 226#endif 227 .pr_usrreqs = &udp6_usrreqs, 228}, 229{ 230 .pr_type = SOCK_RAW, 231 .pr_domain = &inet6domain, 232 .pr_protocol = IPPROTO_RAW, 233 .pr_flags = PR_ATOMIC|PR_ADDR, 234 .pr_input = rip6_input, 235 .pr_output = rip6_output, 236 .pr_ctlinput = rip6_ctlinput, 237 .pr_ctloutput = rip6_ctloutput, 238#ifndef INET /* Do not call initialization twice. */ 239 .pr_init = rip_init, 240#endif 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_fasttimo = icmp6_fasttimo, 253 .pr_slowtimo = icmp6_slowtimo, 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 = ipsec6_common_input, 287 .pr_usrreqs = &nousrreqs, 288}, 289{ 290 .pr_type = SOCK_RAW, 291 .pr_domain = &inet6domain, 292 .pr_protocol = IPPROTO_ESP, 293 .pr_flags = PR_ATOMIC|PR_ADDR, 294 .pr_input = ipsec6_common_input, 295 .pr_ctlinput = esp6_ctlinput, 296 .pr_usrreqs = &nousrreqs, 297}, 298{ 299 .pr_type = SOCK_RAW, 300 .pr_domain = &inet6domain, 301 .pr_protocol = IPPROTO_IPCOMP, 302 .pr_flags = PR_ATOMIC|PR_ADDR, 303 .pr_input = ipsec6_common_input, 304 .pr_usrreqs = &nousrreqs, 305}, 306#endif /* IPSEC */ 307#ifdef INET 308{ 309 .pr_type = SOCK_RAW, 310 .pr_domain = &inet6domain, 311 .pr_protocol = IPPROTO_IPV4, 312 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 313 .pr_input = encap6_input, 314 .pr_output = rip6_output, 315 .pr_ctloutput = rip6_ctloutput, 316 .pr_init = encap_init, 317 .pr_usrreqs = &rip6_usrreqs 318}, 319#endif /* INET */ 320{ 321 .pr_type = SOCK_RAW, 322 .pr_domain = &inet6domain, 323 .pr_protocol = IPPROTO_IPV6, 324 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 325 .pr_input = encap6_input, 326 .pr_output = rip6_output, 327 .pr_ctloutput = rip6_ctloutput, 328 .pr_init = encap_init, 329 .pr_usrreqs = &rip6_usrreqs 330}, 331{ 332 .pr_type = SOCK_RAW, 333 .pr_domain = &inet6domain, 334 .pr_protocol = IPPROTO_GRE, 335 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 336 .pr_input = encap6_input, 337 .pr_output = rip6_output, 338 .pr_ctloutput = rip6_ctloutput, 339 .pr_init = encap_init, 340 .pr_usrreqs = &rip6_usrreqs 341}, 342{ 343 .pr_type = SOCK_RAW, 344 .pr_domain = &inet6domain, 345 .pr_protocol = IPPROTO_PIM, 346 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 347 .pr_input = encap6_input, 348 .pr_output = rip6_output, 349 .pr_ctloutput = rip6_ctloutput, 350 .pr_usrreqs = &rip6_usrreqs 351}, 352/* Spacer n-times for loadable protocols. */ 353IP6PROTOSPACER, 354IP6PROTOSPACER, 355IP6PROTOSPACER, 356IP6PROTOSPACER, 357IP6PROTOSPACER, 358IP6PROTOSPACER, 359IP6PROTOSPACER, 360IP6PROTOSPACER, 361/* raw wildcard */ 362{ 363 .pr_type = SOCK_RAW, 364 .pr_domain = &inet6domain, 365 .pr_flags = PR_ATOMIC|PR_ADDR, 366 .pr_input = rip6_input, 367 .pr_output = rip6_output, 368 .pr_ctloutput = rip6_ctloutput, 369 .pr_usrreqs = &rip6_usrreqs 370}, 371}; 372 373extern int in6_inithead(void **, int); 374#ifdef VIMAGE 375extern int in6_detachhead(void **, int); 376#endif 377 378struct domain inet6domain = { 379 .dom_family = AF_INET6, 380 .dom_name = "internet6", 381 .dom_protosw = (struct protosw *)inet6sw, 382 .dom_protoswNPROTOSW = (struct protosw *) 383 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 384#ifdef RADIX_MPATH 385 .dom_rtattach = rn6_mpath_inithead, 386#else 387 .dom_rtattach = in6_inithead, 388#endif 389#ifdef VIMAGE 390 .dom_rtdetach = in6_detachhead, 391#endif 392 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 393 .dom_maxrtkey = sizeof(struct sockaddr_in6), 394 .dom_ifattach = in6_domifattach, 395 .dom_ifdetach = in6_domifdetach 396}; 397 398VNET_DOMAIN_SET(inet6); 399 400/* 401 * Internet configuration info 402 */ 403#ifndef IPV6FORWARDING 404#ifdef GATEWAY6 405#define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 406#else 407#define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 408#endif /* GATEWAY6 */ 409#endif /* !IPV6FORWARDING */ 410 411#ifndef IPV6_SENDREDIRECTS 412#define IPV6_SENDREDIRECTS 1 413#endif 414 415VNET_DEFINE(int, ip6_forwarding) = IPV6FORWARDING; /* act as router? */ 416VNET_DEFINE(int, ip6_sendredirects) = IPV6_SENDREDIRECTS; 417VNET_DEFINE(int, ip6_defhlim) = IPV6_DEFHLIM; 418VNET_DEFINE(int, ip6_defmcasthlim) = IPV6_DEFAULT_MULTICAST_HOPS; 419VNET_DEFINE(int, ip6_accept_rtadv) = 0; 420VNET_DEFINE(int, ip6_no_radr) = 0; 421VNET_DEFINE(int, ip6_norbit_raif) = 0; 422VNET_DEFINE(int, ip6_rfc6204w3) = 0; 423VNET_DEFINE(int, ip6_maxfragpackets); /* initialized in frag6.c:frag6_init() */ 424VNET_DEFINE(int, ip6_maxfrags); /* initialized in frag6.c:frag6_init() */ 425VNET_DEFINE(int, ip6_log_interval) = 5; 426VNET_DEFINE(int, ip6_hdrnestlimit) = 15;/* How many header options will we 427 * process? */ 428VNET_DEFINE(int, ip6_dad_count) = 1; /* DupAddrDetectionTransmits */ 429VNET_DEFINE(int, ip6_auto_flowlabel) = 1; 430VNET_DEFINE(int, ip6_use_deprecated) = 1;/* allow deprecated addr 431 * (RFC2462 5.5.4) */ 432VNET_DEFINE(int, ip6_rr_prune) = 5; /* router renumbering prefix 433 * walk list every 5 sec. */ 434VNET_DEFINE(int, ip6_mcast_pmtu) = 0; /* enable pMTU discovery for multicast? */ 435VNET_DEFINE(int, ip6_v6only) = 1; 436 437VNET_DEFINE(int, ip6_keepfaith) = 0; 438VNET_DEFINE(time_t, ip6_log_time) = (time_t)0L; 439#ifdef IPSTEALTH 440VNET_DEFINE(int, ip6stealth) = 0; 441#endif 442VNET_DEFINE(int, nd6_onlink_ns_rfc4861) = 0;/* allow 'on-link' nd6 NS 443 * (RFC 4861) */ 444 445/* icmp6 */ 446/* 447 * BSDI4 defines these variables in in_proto.c... 448 * XXX: what if we don't define INET? Should we define pmtu6_expire 449 * or so? (jinmei@kame.net 19990310) 450 */ 451VNET_DEFINE(int, pmtu_expire) = 60*10; 452VNET_DEFINE(int, pmtu_probe) = 60*2; 453 454/* ICMPV6 parameters */ 455VNET_DEFINE(int, icmp6_rediraccept) = 1;/* accept and process redirects */ 456VNET_DEFINE(int, icmp6_redirtimeout) = 10 * 60; /* 10 minutes */ 457VNET_DEFINE(int, icmp6errppslim) = 100; /* 100pps */ 458/* control how to respond to NI queries */ 459VNET_DEFINE(int, icmp6_nodeinfo) = 460 (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK); 461VNET_DEFINE(int, icmp6_nodeinfo_oldmcprefix) = 1; 462 463/* 464 * sysctl related items. 465 */ 466SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 467 "Internet6 Family"); 468 469/* net.inet6 */ 470SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 471SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 472SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 473SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 474#ifdef SCTP 475SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 476#endif 477#ifdef IPSEC 478SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 479#endif /* IPSEC */ 480 481/* net.inet6.ip6 */ 482static int 483sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 484{ 485 int error = 0; 486 int old; 487 488 error = SYSCTL_OUT(req, arg1, sizeof(int)); 489 if (error || !req->newptr) 490 return (error); 491 old = V_ip6_temp_preferred_lifetime; 492 error = SYSCTL_IN(req, arg1, sizeof(int)); 493 if (V_ip6_temp_preferred_lifetime < 494 V_ip6_desync_factor + V_ip6_temp_regen_advance) { 495 V_ip6_temp_preferred_lifetime = old; 496 return (EINVAL); 497 } 498 return (error); 499} 500 501static int 502sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 503{ 504 int error = 0; 505 int old; 506 507 error = SYSCTL_OUT(req, arg1, sizeof(int)); 508 if (error || !req->newptr) 509 return (error); 510 old = V_ip6_temp_valid_lifetime; 511 error = SYSCTL_IN(req, arg1, sizeof(int)); 512 if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) { 513 V_ip6_temp_preferred_lifetime = old; 514 return (EINVAL); 515 } 516 return (error); 517} 518 519SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 520 &VNET_NAME(ip6_forwarding), 0, ""); 521SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 522 &VNET_NAME(ip6_sendredirects), 0, ""); 523SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW, 524 &VNET_NAME(ip6_defhlim), 0, ""); 525SYSCTL_VNET_PCPUSTAT(_net_inet6_ip6, IPV6CTL_STATS, stats, struct ip6stat, 526 ip6stat, "IP6 statistics (struct ip6stat, netinet6/ip6_var.h)"); 527SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 528 CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, ""); 529SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 530 CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0, 531 "Default value of per-interface flag for accepting ICMPv6 Router" 532 "Advertisement messages"); 533SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_NO_RADR, no_radr, 534 CTLFLAG_RW, &VNET_NAME(ip6_no_radr), 0, 535 "Default value of per-interface flag to control whether routers " 536 "sending ICMPv6 RA messages on that interface are added into the " 537 "default router list."); 538SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_NORBIT_RAIF, norbit_raif, CTLFLAG_RW, 539 &VNET_NAME(ip6_norbit_raif), 0, 540 "Always set 0 to R flag in ICMPv6 NA messages when accepting RA" 541 " on the interface."); 542SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RFC6204W3, rfc6204w3, 543 CTLFLAG_RW, &VNET_NAME(ip6_rfc6204w3), 0, 544 "Accept the default router list from ICMPv6 RA messages even " 545 "when packet forwarding enabled."); 546SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RW, 547 &VNET_NAME(ip6_keepfaith), 0, ""); 548SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval, 549 CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0, ""); 550SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, 551 CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, ""); 552SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 553 &VNET_NAME(ip6_dad_count), 0, ""); 554SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, 555 CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0, ""); 556SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, 557 CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, ""); 558SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version, 559 CTLFLAG_RD, __KAME_VERSION, 0, ""); 560SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, 561 CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0, ""); 562SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW, 563 &VNET_NAME(ip6_rr_prune), 0, ""); 564SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, 565 CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0, ""); 566SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 567 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_preferred_lifetime), 0, 568 sysctl_ip6_temppltime, "I", ""); 569SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 570 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_valid_lifetime), 0, 571 sysctl_ip6_tempvltime, "I", ""); 572SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 573 &VNET_NAME(ip6_v6only), 0, ""); 574SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, 575 CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0, 576 "Default value of per-interface flag for automatically adding an IPv6" 577 " link-local address to interfaces when attached"); 578SYSCTL_VNET_PCPUSTAT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, 579 struct rip6stat, rip6stat, 580 "Raw IP6 statistics (struct rip6stat, netinet6/raw_ip6.h)"); 581SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr, 582 CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0, ""); 583SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone, 584 CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,""); 585SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags, CTLFLAG_RW, 586 &VNET_NAME(ip6_maxfrags), 0, ""); 587SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW, 588 &VNET_NAME(ip6_mcast_pmtu), 0, ""); 589#ifdef IPSTEALTH 590SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 591 &VNET_NAME(ip6stealth), 0, ""); 592#endif 593 594/* net.inet6.icmp6 */ 595SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, 596 CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0, ""); 597SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, 598 CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0, ""); 599SYSCTL_VNET_PCPUSTAT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, 600 struct icmp6stat, icmp6stat, 601 "ICMPv6 statistics (struct icmp6stat, netinet/icmp6.h)"); 602SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 603 &VNET_NAME(nd6_prune), 0, ""); 604SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 605 &VNET_NAME(nd6_delay), 0, ""); 606SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, 607 CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0, ""); 608SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, 609 CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0, ""); 610SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, 611 CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0, ""); 612SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW, 613 &VNET_NAME(icmp6_nodeinfo), 0, ""); 614SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO_OLDMCPREFIX, 615 nodeinfo_oldmcprefix, CTLFLAG_RW, 616 &VNET_NAME(icmp6_nodeinfo_oldmcprefix), 0, 617 "Join old IPv6 NI group address in draft-ietf-ipngwg-icmp-name-lookup" 618 " for compatibility with KAME implememtation."); 619SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit, 620 CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0, ""); 621SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, 622 CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0, ""); 623SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 624 &VNET_NAME(nd6_debug), 0, ""); 625SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, 626 nd6_onlink_ns_rfc4861, CTLFLAG_RW, &VNET_NAME(nd6_onlink_ns_rfc4861), 627 0, "Accept 'on-link' nd6 NS in compliance with RFC 4861."); 628