in6_proto.c revision 225521
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 225521 2011-09-13 00:06:11Z hrs $"); 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#ifdef FLOWTABLE 130#include <net/flowtable.h> 131#endif 132 133/* 134 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 135 */ 136FEATURE(inet6, "Internet Protocol version 6"); 137 138extern struct domain inet6domain; 139static struct pr_usrreqs nousrreqs; 140 141#define PR_LISTEN 0 142#define PR_ABRTACPTDIS 0 143 144/* Spacer for loadable protocols. */ 145#define IP6PROTOSPACER \ 146{ \ 147 .pr_domain = &inet6domain, \ 148 .pr_protocol = PROTO_SPACER, \ 149 .pr_usrreqs = &nousrreqs \ 150} 151 152struct ip6protosw inet6sw[] = { 153{ 154 .pr_type = 0, 155 .pr_domain = &inet6domain, 156 .pr_protocol = IPPROTO_IPV6, 157 .pr_init = ip6_init, 158#ifdef VIMAGE 159 .pr_destroy = ip6_destroy, 160#endif 161 .pr_slowtimo = frag6_slowtimo, 162 .pr_drain = frag6_drain, 163 .pr_usrreqs = &nousrreqs, 164}, 165{ 166 .pr_type = SOCK_DGRAM, 167 .pr_domain = &inet6domain, 168 .pr_protocol = IPPROTO_UDP, 169 .pr_flags = PR_ATOMIC|PR_ADDR, 170 .pr_input = udp6_input, 171 .pr_ctlinput = udp6_ctlinput, 172 .pr_ctloutput = ip6_ctloutput, 173#ifndef INET /* Do not call initialization twice. */ 174 .pr_init = udp_init, 175#endif 176 .pr_usrreqs = &udp6_usrreqs, 177}, 178{ 179 .pr_type = SOCK_STREAM, 180 .pr_domain = &inet6domain, 181 .pr_protocol = IPPROTO_TCP, 182 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 183 .pr_input = tcp6_input, 184 .pr_ctlinput = tcp6_ctlinput, 185 .pr_ctloutput = tcp_ctloutput, 186#ifndef INET /* don't call initialization and timeout routines twice */ 187 .pr_init = tcp_init, 188 .pr_slowtimo = tcp_slowtimo, 189#endif 190 .pr_drain = tcp_drain, 191 .pr_usrreqs = &tcp6_usrreqs, 192}, 193#ifdef SCTP 194{ 195 .pr_type = SOCK_SEQPACKET, 196 .pr_domain = &inet6domain, 197 .pr_protocol = IPPROTO_SCTP, 198 .pr_flags = PR_WANTRCVD, 199 .pr_input = sctp6_input, 200 .pr_ctlinput = sctp6_ctlinput, 201 .pr_ctloutput = sctp_ctloutput, 202 .pr_drain = sctp_drain, 203#ifndef INET /* Do not call initialization twice. */ 204 .pr_init = sctp_init, 205#endif 206 .pr_usrreqs = &sctp6_usrreqs 207}, 208{ 209 .pr_type = SOCK_STREAM, 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#endif /* SCTP */ 220{ 221 .pr_type = SOCK_RAW, 222 .pr_domain = &inet6domain, 223 .pr_protocol = IPPROTO_RAW, 224 .pr_flags = PR_ATOMIC|PR_ADDR, 225 .pr_input = rip6_input, 226 .pr_output = rip6_output, 227 .pr_ctlinput = rip6_ctlinput, 228 .pr_ctloutput = rip6_ctloutput, 229#ifndef INET /* Do not call initialization twice. */ 230 .pr_init = rip_init, 231#endif 232 .pr_usrreqs = &rip6_usrreqs 233}, 234{ 235 .pr_type = SOCK_RAW, 236 .pr_domain = &inet6domain, 237 .pr_protocol = IPPROTO_ICMPV6, 238 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 239 .pr_input = icmp6_input, 240 .pr_output = rip6_output, 241 .pr_ctlinput = rip6_ctlinput, 242 .pr_ctloutput = rip6_ctloutput, 243 .pr_fasttimo = icmp6_fasttimo, 244 .pr_slowtimo = icmp6_slowtimo, 245 .pr_usrreqs = &rip6_usrreqs 246}, 247{ 248 .pr_type = SOCK_RAW, 249 .pr_domain = &inet6domain, 250 .pr_protocol = IPPROTO_DSTOPTS, 251 .pr_flags = PR_ATOMIC|PR_ADDR, 252 .pr_input = dest6_input, 253 .pr_usrreqs = &nousrreqs 254}, 255{ 256 .pr_type = SOCK_RAW, 257 .pr_domain = &inet6domain, 258 .pr_protocol = IPPROTO_ROUTING, 259 .pr_flags = PR_ATOMIC|PR_ADDR, 260 .pr_input = route6_input, 261 .pr_usrreqs = &nousrreqs 262}, 263{ 264 .pr_type = SOCK_RAW, 265 .pr_domain = &inet6domain, 266 .pr_protocol = IPPROTO_FRAGMENT, 267 .pr_flags = PR_ATOMIC|PR_ADDR, 268 .pr_input = frag6_input, 269 .pr_usrreqs = &nousrreqs 270}, 271#ifdef IPSEC 272{ 273 .pr_type = SOCK_RAW, 274 .pr_domain = &inet6domain, 275 .pr_protocol = IPPROTO_AH, 276 .pr_flags = PR_ATOMIC|PR_ADDR, 277 .pr_input = ipsec6_common_input, 278 .pr_usrreqs = &nousrreqs, 279}, 280{ 281 .pr_type = SOCK_RAW, 282 .pr_domain = &inet6domain, 283 .pr_protocol = IPPROTO_ESP, 284 .pr_flags = PR_ATOMIC|PR_ADDR, 285 .pr_input = ipsec6_common_input, 286 .pr_ctlinput = esp6_ctlinput, 287 .pr_usrreqs = &nousrreqs, 288}, 289{ 290 .pr_type = SOCK_RAW, 291 .pr_domain = &inet6domain, 292 .pr_protocol = IPPROTO_IPCOMP, 293 .pr_flags = PR_ATOMIC|PR_ADDR, 294 .pr_input = ipsec6_common_input, 295 .pr_usrreqs = &nousrreqs, 296}, 297#endif /* IPSEC */ 298#ifdef INET 299{ 300 .pr_type = SOCK_RAW, 301 .pr_domain = &inet6domain, 302 .pr_protocol = IPPROTO_IPV4, 303 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 304 .pr_input = encap6_input, 305 .pr_output = rip6_output, 306 .pr_ctloutput = rip6_ctloutput, 307 .pr_init = encap_init, 308 .pr_usrreqs = &rip6_usrreqs 309}, 310#endif /* INET */ 311{ 312 .pr_type = SOCK_RAW, 313 .pr_domain = &inet6domain, 314 .pr_protocol = IPPROTO_IPV6, 315 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 316 .pr_input = encap6_input, 317 .pr_output = rip6_output, 318 .pr_ctloutput = rip6_ctloutput, 319 .pr_init = encap_init, 320 .pr_usrreqs = &rip6_usrreqs 321}, 322{ 323 .pr_type = SOCK_RAW, 324 .pr_domain = &inet6domain, 325 .pr_protocol = IPPROTO_PIM, 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_usrreqs = &rip6_usrreqs 331}, 332/* Spacer n-times for loadable protocols. */ 333IP6PROTOSPACER, 334IP6PROTOSPACER, 335IP6PROTOSPACER, 336IP6PROTOSPACER, 337IP6PROTOSPACER, 338IP6PROTOSPACER, 339IP6PROTOSPACER, 340IP6PROTOSPACER, 341/* raw wildcard */ 342{ 343 .pr_type = SOCK_RAW, 344 .pr_domain = &inet6domain, 345 .pr_flags = PR_ATOMIC|PR_ADDR, 346 .pr_input = rip6_input, 347 .pr_output = rip6_output, 348 .pr_ctloutput = rip6_ctloutput, 349 .pr_usrreqs = &rip6_usrreqs 350}, 351}; 352 353extern int in6_inithead(void **, int); 354#ifdef VIMAGE 355extern int in6_detachhead(void **, int); 356#endif 357 358struct domain inet6domain = { 359 .dom_family = AF_INET6, 360 .dom_name = "internet6", 361 .dom_protosw = (struct protosw *)inet6sw, 362 .dom_protoswNPROTOSW = (struct protosw *) 363 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 364#ifdef RADIX_MPATH 365 .dom_rtattach = rn6_mpath_inithead, 366#else 367 .dom_rtattach = in6_inithead, 368#endif 369#ifdef VIMAGE 370 .dom_rtdetach = in6_detachhead, 371#endif 372 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 373 .dom_maxrtkey = sizeof(struct sockaddr_in6), 374 .dom_ifattach = in6_domifattach, 375 .dom_ifdetach = in6_domifdetach 376}; 377 378VNET_DOMAIN_SET(inet6); 379 380/* 381 * Internet configuration info 382 */ 383#ifndef IPV6FORWARDING 384#ifdef GATEWAY6 385#define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 386#else 387#define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 388#endif /* GATEWAY6 */ 389#endif /* !IPV6FORWARDING */ 390 391#ifndef IPV6_SENDREDIRECTS 392#define IPV6_SENDREDIRECTS 1 393#endif 394 395VNET_DEFINE(int, ip6_forwarding) = IPV6FORWARDING; /* act as router? */ 396VNET_DEFINE(int, ip6_sendredirects) = IPV6_SENDREDIRECTS; 397VNET_DEFINE(int, ip6_defhlim) = IPV6_DEFHLIM; 398VNET_DEFINE(int, ip6_defmcasthlim) = IPV6_DEFAULT_MULTICAST_HOPS; 399VNET_DEFINE(int, ip6_accept_rtadv) = 0; 400VNET_DEFINE(int, ip6_no_radr) = 0; 401VNET_DEFINE(int, ip6_norbit_raif) = 0; 402VNET_DEFINE(int, ip6_rfc6204w3) = 0; 403VNET_DEFINE(int, ip6_maxfragpackets); /* initialized in frag6.c:frag6_init() */ 404VNET_DEFINE(int, ip6_maxfrags); /* initialized in frag6.c:frag6_init() */ 405VNET_DEFINE(int, ip6_log_interval) = 5; 406VNET_DEFINE(int, ip6_hdrnestlimit) = 15;/* How many header options will we 407 * process? */ 408VNET_DEFINE(int, ip6_dad_count) = 1; /* DupAddrDetectionTransmits */ 409VNET_DEFINE(int, ip6_auto_flowlabel) = 1; 410VNET_DEFINE(int, ip6_use_deprecated) = 1;/* allow deprecated addr 411 * (RFC2462 5.5.4) */ 412VNET_DEFINE(int, ip6_rr_prune) = 5; /* router renumbering prefix 413 * walk list every 5 sec. */ 414VNET_DEFINE(int, ip6_mcast_pmtu) = 0; /* enable pMTU discovery for multicast? */ 415VNET_DEFINE(int, ip6_v6only) = 1; 416 417VNET_DEFINE(int, ip6_keepfaith) = 0; 418VNET_DEFINE(time_t, ip6_log_time) = (time_t)0L; 419#ifdef IPSTEALTH 420VNET_DEFINE(int, ip6stealth) = 0; 421#endif 422VNET_DEFINE(int, nd6_onlink_ns_rfc4861) = 0;/* allow 'on-link' nd6 NS 423 * (RFC 4861) */ 424 425/* icmp6 */ 426/* 427 * BSDI4 defines these variables in in_proto.c... 428 * XXX: what if we don't define INET? Should we define pmtu6_expire 429 * or so? (jinmei@kame.net 19990310) 430 */ 431VNET_DEFINE(int, pmtu_expire) = 60*10; 432VNET_DEFINE(int, pmtu_probe) = 60*2; 433 434/* raw IP6 parameters */ 435/* 436 * Nominal space allocated to a raw ip socket. 437 */ 438#define RIPV6SNDQ 8192 439#define RIPV6RCVQ 8192 440 441VNET_DEFINE(u_long, rip6_sendspace) = RIPV6SNDQ; 442VNET_DEFINE(u_long, rip6_recvspace) = RIPV6RCVQ; 443 444/* ICMPV6 parameters */ 445VNET_DEFINE(int, icmp6_rediraccept) = 1;/* accept and process redirects */ 446VNET_DEFINE(int, icmp6_redirtimeout) = 10 * 60; /* 10 minutes */ 447VNET_DEFINE(int, icmp6errppslim) = 100; /* 100pps */ 448/* control how to respond to NI queries */ 449VNET_DEFINE(int, icmp6_nodeinfo) = 450 (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK); 451 452/* UDP on IP6 parameters */ 453VNET_DEFINE(int, udp6_sendspace) = 9216;/* really max datagram size */ 454VNET_DEFINE(int, udp6_recvspace) = 40 * (1024 + sizeof(struct sockaddr_in6)); 455 /* 40 1K datagrams */ 456 457/* 458 * sysctl related items. 459 */ 460SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 461 "Internet6 Family"); 462 463/* net.inet6 */ 464SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 465SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 466SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 467SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 468#ifdef SCTP 469SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 470#endif 471#ifdef IPSEC 472SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 473#endif /* IPSEC */ 474 475/* net.inet6.ip6 */ 476static int 477sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 478{ 479 int error = 0; 480 int old; 481 482 VNET_SYSCTL_ARG(req, arg1); 483 484 error = SYSCTL_OUT(req, arg1, sizeof(int)); 485 if (error || !req->newptr) 486 return (error); 487 old = V_ip6_temp_preferred_lifetime; 488 error = SYSCTL_IN(req, arg1, sizeof(int)); 489 if (V_ip6_temp_preferred_lifetime < 490 V_ip6_desync_factor + V_ip6_temp_regen_advance) { 491 V_ip6_temp_preferred_lifetime = old; 492 return (EINVAL); 493 } 494 return (error); 495} 496 497static int 498sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 499{ 500 int error = 0; 501 int old; 502 503 VNET_SYSCTL_ARG(req, arg1); 504 505 error = SYSCTL_OUT(req, arg1, sizeof(int)); 506 if (error || !req->newptr) 507 return (error); 508 old = V_ip6_temp_valid_lifetime; 509 error = SYSCTL_IN(req, arg1, sizeof(int)); 510 if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) { 511 V_ip6_temp_preferred_lifetime = old; 512 return (EINVAL); 513 } 514 return (error); 515} 516 517SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 518 &VNET_NAME(ip6_forwarding), 0, ""); 519SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 520 &VNET_NAME(ip6_sendredirects), 0, ""); 521SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW, 522 &VNET_NAME(ip6_defhlim), 0, ""); 523SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 524 &VNET_NAME(ip6stat), ip6stat, ""); 525SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 526 CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, ""); 527SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 528 CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0, 529 "Default value of per-interface flag for accepting ICMPv6 Router" 530 "Advertisement messages"); 531SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_NO_RADR, no_radr, 532 CTLFLAG_RW, &VNET_NAME(ip6_no_radr), 0, 533 "Default value of per-interface flag to control whether routers " 534 "sending ICMPv6 RA messages on that interface are added into the " 535 "default router list."); 536SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_NORBIT_RAIF, norbit_raif, CTLFLAG_RW, 537 &VNET_NAME(ip6_norbit_raif), 0, 538 "Always set 0 to R flag in ICMPv6 NA messages when accepting RA" 539 " on the interface."); 540SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RFC6204W3, rfc6204w3, 541 CTLFLAG_RW, &VNET_NAME(ip6_rfc6204w3), 0, 542 "Accept the default router list from ICMPv6 RA messages even " 543 "when packet forwarding enabled."); 544SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RW, 545 &VNET_NAME(ip6_keepfaith), 0, ""); 546SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval, 547 CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0, ""); 548SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, 549 CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, ""); 550SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 551 &VNET_NAME(ip6_dad_count), 0, ""); 552SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, 553 CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0, ""); 554SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, 555 CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, ""); 556SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version, 557 CTLFLAG_RD, __KAME_VERSION, 0, ""); 558SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, 559 CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0, ""); 560SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW, 561 &VNET_NAME(ip6_rr_prune), 0, ""); 562SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, 563 CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0, ""); 564SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 565 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_preferred_lifetime), 0, 566 sysctl_ip6_temppltime, "I", ""); 567SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 568 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_valid_lifetime), 0, 569 sysctl_ip6_tempvltime, "I", ""); 570SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 571 &VNET_NAME(ip6_v6only), 0, ""); 572SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, 573 CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0, 574 "Default value of per-interface flag for automatically adding an IPv6" 575 " link-local address to interfaces when attached"); 576SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 577 &VNET_NAME(rip6stat), rip6stat, ""); 578SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr, 579 CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0, ""); 580SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone, 581 CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,""); 582SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags, CTLFLAG_RW, 583 &VNET_NAME(ip6_maxfrags), 0, ""); 584SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW, 585 &VNET_NAME(ip6_mcast_pmtu), 0, ""); 586#ifdef IPSTEALTH 587SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 588 &VNET_NAME(ip6stealth), 0, ""); 589#endif 590 591#ifdef FLOWTABLE 592VNET_DEFINE(int, ip6_output_flowtable_size) = 2048; 593VNET_DEFINE(struct flowtable *, ip6_ft); 594#define V_ip6_output_flowtable_size VNET(ip6_output_flowtable_size) 595 596SYSCTL_VNET_INT(_net_inet6_ip6, OID_AUTO, output_flowtable_size, CTLFLAG_RDTUN, 597 &VNET_NAME(ip6_output_flowtable_size), 2048, 598 "number of entries in the per-cpu output flow caches"); 599#endif 600 601/* net.inet6.icmp6 */ 602SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, 603 CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0, ""); 604SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, 605 CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0, ""); 606SYSCTL_VNET_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 607 &VNET_NAME(icmp6stat), icmp6stat, ""); 608SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 609 &VNET_NAME(nd6_prune), 0, ""); 610SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 611 &VNET_NAME(nd6_delay), 0, ""); 612SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, 613 CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0, ""); 614SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, 615 CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0, ""); 616SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, 617 CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0, ""); 618SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW, 619 &VNET_NAME(icmp6_nodeinfo), 0, ""); 620SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit, 621 CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0, ""); 622SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, 623 CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0, ""); 624SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 625 &VNET_NAME(nd6_debug), 0, ""); 626SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, 627 nd6_onlink_ns_rfc4861, CTLFLAG_RW, &VNET_NAME(nd6_onlink_ns_rfc4861), 628 0, "Accept 'on-link' nd6 NS in compliance with RFC 4861."); 629