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("$FreeBSD$"); 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 #include "opt_route.h" 74 75 #include <sys/param.h> 76 #include <sys/socket.h> 77 #include <sys/socketvar.h> 78 #include <sys/proc.h> 79 #include <sys/protosw.h> 80 #include <sys/jail.h> 81 #include <sys/kernel.h> 82 #include <sys/domain.h> 83 #include <sys/mbuf.h> 84 #include <sys/systm.h> 85 #include <sys/sysctl.h> 86 87 #include <net/if.h> 88 #include <net/radix.h> 89 #include <net/route.h> 90 #ifdef RADIX_MPATH 91 #include <net/radix_mpath.h> 92 #endif 93 94 #include <netinet/in.h> 95 #include <netinet/in_systm.h> 96 #include <netinet/in_var.h> 97 #include <netinet/ip_encap.h> 98 #include <netinet/ip.h> 99 #include <netinet/ip_var.h> 100 #include <netinet/ip6.h> 101 #include <netinet6/ip6_var.h> 102 #include <netinet/icmp6.h> 103 104 #include <netinet/tcp.h> 105 #include <netinet/tcp_timer.h> 106 #include <netinet/tcp_var.h> 107 #include <netinet/udp.h> 108 #include <netinet/udp_var.h> 109 #include <netinet6/tcp6_var.h> 110 #include <netinet6/raw_ip6.h> 111 #include <netinet6/udp6_var.h> 112 #include <netinet6/pim6_var.h> 113 #include <netinet6/nd6.h> 114 115 #ifdef DEV_CARP 116 #include <netinet/ip_carp.h> 117 #endif 118 119 #ifdef SCTP 120 #include <netinet/in_pcb.h> 121 #include <netinet/sctp_pcb.h> 122 #include <netinet/sctp.h> 123 #include <netinet/sctp_var.h> 124 #include <netinet6/sctp6_var.h> 125 #endif /* SCTP */ 126 127 #ifdef IPSEC 128 #include <netipsec/ipsec.h> 129 #include <netipsec/ipsec6.h> 130 #endif /* IPSEC */ 131 132 #include <netinet6/ip6protosw.h> 133 134 #ifdef FLOWTABLE 135 #include <net/flowtable.h> 136 #endif 137 138 /* 139 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 140 */ 141 142 extern struct domain inet6domain; 143 static struct pr_usrreqs nousrreqs; 144 145 #define PR_LISTEN 0 146 #define PR_ABRTACPTDIS 0 147 148 struct 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 .pr_usrreqs = &udp6_usrreqs, 170 }, 171 { 172 .pr_type = SOCK_STREAM, 173 .pr_domain = &inet6domain, 174 .pr_protocol = IPPROTO_TCP, 175 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 176 .pr_input = tcp6_input, 177 .pr_ctlinput = tcp6_ctlinput, 178 .pr_ctloutput = tcp_ctloutput, 179 #ifndef INET /* don't call initialization and timeout routines twice */ 180 .pr_init = tcp_init, 181 .pr_slowtimo = tcp_slowtimo, 182 #endif 183 .pr_drain = tcp_drain, 184 .pr_usrreqs = &tcp6_usrreqs, 185 }, 186 #ifdef SCTP 187 { 188 .pr_type = SOCK_DGRAM, 189 .pr_domain = &inet6domain, 190 .pr_protocol = IPPROTO_SCTP, 191 .pr_flags = PR_WANTRCVD, 192 .pr_input = sctp6_input, 193 .pr_ctlinput = sctp6_ctlinput, 194 .pr_ctloutput = sctp_ctloutput, 195 .pr_drain = sctp_drain, 196 .pr_usrreqs = &sctp6_usrreqs 197 }, 198 { 199 .pr_type = SOCK_SEQPACKET, 200 .pr_domain = &inet6domain, 201 .pr_protocol = IPPROTO_SCTP, 202 .pr_flags = PR_WANTRCVD, 203 .pr_input = sctp6_input, 204 .pr_ctlinput = sctp6_ctlinput, 205 .pr_ctloutput = sctp_ctloutput, 206 .pr_drain = sctp_drain, 207 .pr_usrreqs = &sctp6_usrreqs 208 }, 209 210 { 211 .pr_type = SOCK_STREAM, 212 .pr_domain = &inet6domain, 213 .pr_protocol = IPPROTO_SCTP, 214 .pr_flags = PR_WANTRCVD, 215 .pr_input = sctp6_input, 216 .pr_ctlinput = sctp6_ctlinput, 217 .pr_ctloutput = sctp_ctloutput, 218 .pr_drain = sctp_drain, 219 .pr_usrreqs = &sctp6_usrreqs 220 }, 221 #endif /* SCTP */ 222 { 223 .pr_type = SOCK_RAW, 224 .pr_domain = &inet6domain, 225 .pr_protocol = IPPROTO_RAW, 226 .pr_flags = PR_ATOMIC|PR_ADDR, 227 .pr_input = rip6_input, 228 .pr_output = rip6_output, 229 .pr_ctlinput = rip6_ctlinput, 230 .pr_ctloutput = rip6_ctloutput, 231 .pr_usrreqs = &rip6_usrreqs 232 }, 233 { 234 .pr_type = SOCK_RAW, 235 .pr_domain = &inet6domain, 236 .pr_protocol = IPPROTO_ICMPV6, 237 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 238 .pr_input = icmp6_input, 239 .pr_output = rip6_output, 240 .pr_ctlinput = rip6_ctlinput, 241 .pr_ctloutput = rip6_ctloutput, 242 .pr_fasttimo = icmp6_fasttimo, 243 .pr_slowtimo = icmp6_slowtimo, 244 .pr_usrreqs = &rip6_usrreqs 245 }, 246 { 247 .pr_type = SOCK_RAW, 248 .pr_domain = &inet6domain, 249 .pr_protocol = IPPROTO_DSTOPTS, 250 .pr_flags = PR_ATOMIC|PR_ADDR, 251 .pr_input = dest6_input, 252 .pr_usrreqs = &nousrreqs 253 }, 254 { 255 .pr_type = SOCK_RAW, 256 .pr_domain = &inet6domain, 257 .pr_protocol = IPPROTO_ROUTING, 258 .pr_flags = PR_ATOMIC|PR_ADDR, 259 .pr_input = route6_input, 260 .pr_usrreqs = &nousrreqs 261 }, 262 { 263 .pr_type = SOCK_RAW, 264 .pr_domain = &inet6domain, 265 .pr_protocol = IPPROTO_FRAGMENT, 266 .pr_flags = PR_ATOMIC|PR_ADDR, 267 .pr_input = frag6_input, 268 .pr_usrreqs = &nousrreqs 269 }, 270 #ifdef IPSEC 271 { 272 .pr_type = SOCK_RAW, 273 .pr_domain = &inet6domain, 274 .pr_protocol = IPPROTO_AH, 275 .pr_flags = PR_ATOMIC|PR_ADDR, 276 .pr_input = ipsec6_common_input, 277 .pr_usrreqs = &nousrreqs, 278 }, 279 { 280 .pr_type = SOCK_RAW, 281 .pr_domain = &inet6domain, 282 .pr_protocol = IPPROTO_ESP, 283 .pr_flags = PR_ATOMIC|PR_ADDR, 284 .pr_input = ipsec6_common_input, 285 .pr_ctlinput = esp6_ctlinput, 286 .pr_usrreqs = &nousrreqs, 287 }, 288 { 289 .pr_type = SOCK_RAW, 290 .pr_domain = &inet6domain, 291 .pr_protocol = IPPROTO_IPCOMP, 292 .pr_flags = PR_ATOMIC|PR_ADDR, 293 .pr_input = ipsec6_common_input, 294 .pr_usrreqs = &nousrreqs, 295 }, 296 #endif /* IPSEC */ 297 #ifdef INET 298 { 299 .pr_type = SOCK_RAW, 300 .pr_domain = &inet6domain, 301 .pr_protocol = IPPROTO_IPV4, 302 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 303 .pr_input = encap6_input, 304 .pr_output = rip6_output, 305 .pr_ctloutput = rip6_ctloutput, 306 .pr_init = encap_init, 307 .pr_usrreqs = &rip6_usrreqs 308 }, 309 #endif /* INET */ 310 { 311 .pr_type = SOCK_RAW, 312 .pr_domain = &inet6domain, 313 .pr_protocol = IPPROTO_IPV6, 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 { 322 .pr_type = SOCK_RAW, 323 .pr_domain = &inet6domain, 324 .pr_protocol = IPPROTO_PIM, 325 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 326 .pr_input = encap6_input, 327 .pr_output = rip6_output, 328 .pr_ctloutput = rip6_ctloutput, 329 .pr_usrreqs = &rip6_usrreqs 330 }, 331 #ifdef DEV_CARP 332 { 333 .pr_type = SOCK_RAW, 334 .pr_domain = &inet6domain, 335 .pr_protocol = IPPROTO_CARP, 336 .pr_flags = PR_ATOMIC|PR_ADDR, 337 .pr_input = carp6_input, 338 .pr_output = rip6_output, 339 .pr_ctloutput = rip6_ctloutput, 340 .pr_usrreqs = &rip6_usrreqs 341 }, 342 #endif /* DEV_CARP */ 343 /* raw wildcard */ 344 { 345 .pr_type = SOCK_RAW, 346 .pr_domain = &inet6domain, 347 .pr_flags = PR_ATOMIC|PR_ADDR, 348 .pr_input = rip6_input, 349 .pr_output = rip6_output, 350 .pr_ctloutput = rip6_ctloutput, 351 .pr_usrreqs = &rip6_usrreqs 352 }, 353 }; 354 355 extern int in6_inithead(void **, int); 356 #ifdef VIMAGE 357 extern int in6_detachhead(void **, int); 358 #endif 359 360 struct domain inet6domain = { 361 .dom_family = AF_INET6, 362 .dom_name = "internet6", 363 .dom_protosw = (struct protosw *)inet6sw, 364 .dom_protoswNPROTOSW = (struct protosw *) 365 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 366 #ifdef RADIX_MPATH 367 .dom_rtattach = rn6_mpath_inithead, 368 #else 369 .dom_rtattach = in6_inithead, 370 #endif 371 #ifdef VIMAGE 372 .dom_rtdetach = in6_detachhead, 373 #endif 374 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 375 .dom_maxrtkey = sizeof(struct sockaddr_in6), 376 .dom_ifattach = in6_domifattach, 377 .dom_ifdetach = in6_domifdetach 378 }; 379 380 VNET_DOMAIN_SET(inet6); 381 382 /* 383 * Internet configuration info 384 */ 385 #ifndef IPV6FORWARDING 386 #ifdef GATEWAY6 387 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 388 #else 389 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 390 #endif /* GATEWAY6 */ 391 #endif /* !IPV6FORWARDING */ 392 393 #ifndef IPV6_SENDREDIRECTS 394 #define IPV6_SENDREDIRECTS 1 395 #endif 396 397 VNET_DEFINE(int, ip6_forwarding) = IPV6FORWARDING; /* act as router? */ 398 VNET_DEFINE(int, ip6_sendredirects) = IPV6_SENDREDIRECTS; 399 VNET_DEFINE(int, ip6_defhlim) = IPV6_DEFHLIM; 400 VNET_DEFINE(int, ip6_defmcasthlim) = IPV6_DEFAULT_MULTICAST_HOPS; 401 VNET_DEFINE(int, ip6_accept_rtadv) = 0; 402 VNET_DEFINE(int, ip6_maxfragpackets); /* initialized in frag6.c:frag6_init() */ 403 VNET_DEFINE(int, ip6_maxfrags); /* initialized in frag6.c:frag6_init() */ 404 VNET_DEFINE(int, ip6_log_interval) = 5; 405 VNET_DEFINE(int, ip6_hdrnestlimit) = 15;/* How many header options will we 406 * process? */ 407 VNET_DEFINE(int, ip6_dad_count) = 1; /* DupAddrDetectionTransmits */ 408 VNET_DEFINE(int, ip6_auto_flowlabel) = 1; 409 VNET_DEFINE(int, ip6_use_deprecated) = 1;/* allow deprecated addr 410 * (RFC2462 5.5.4) */ 411 VNET_DEFINE(int, ip6_rr_prune) = 5; /* router renumbering prefix 412 * walk list every 5 sec. */ 413 VNET_DEFINE(int, ip6_mcast_pmtu) = 0; /* enable pMTU discovery for multicast? */ 414 VNET_DEFINE(int, ip6_v6only) = 1; 415 416 VNET_DEFINE(int, ip6_keepfaith) = 0; 417 VNET_DEFINE(time_t, ip6_log_time) = (time_t)0L; 418 #ifdef IPSTEALTH 419 VNET_DEFINE(int, ip6stealth) = 0; 420 #endif 421 VNET_DEFINE(int, nd6_onlink_ns_rfc4861) = 0;/* allow 'on-link' nd6 NS 422 * (RFC 4861) */ 423 424 /* icmp6 */ 425 /* 426 * BSDI4 defines these variables in in_proto.c... 427 * XXX: what if we don't define INET? Should we define pmtu6_expire 428 * or so? (jinmei@kame.net 19990310) 429 */ 430 VNET_DEFINE(int, pmtu_expire) = 60*10; 431 VNET_DEFINE(int, pmtu_probe) = 60*2; 432 433 /* raw IP6 parameters */ 434 /* 435 * Nominal space allocated to a raw ip socket. 436 */ 437 #define RIPV6SNDQ 8192 438 #define RIPV6RCVQ 8192 439 440 VNET_DEFINE(u_long, rip6_sendspace) = RIPV6SNDQ; 441 VNET_DEFINE(u_long, rip6_recvspace) = RIPV6RCVQ; 442 443 /* ICMPV6 parameters */ 444 VNET_DEFINE(int, icmp6_rediraccept) = 1;/* accept and process redirects */ 445 VNET_DEFINE(int, icmp6_redirtimeout) = 10 * 60; /* 10 minutes */ 446 VNET_DEFINE(int, icmp6errppslim) = 100; /* 100pps */ 447 /* control how to respond to NI queries */ 448 VNET_DEFINE(int, icmp6_nodeinfo) = 449 (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK); 450 451 /* UDP on IP6 parameters */ 452 VNET_DEFINE(int, udp6_sendspace) = 9216;/* really max datagram size */ 453 VNET_DEFINE(int, udp6_recvspace) = 40 * (1024 + sizeof(struct sockaddr_in6)); 454 /* 40 1K datagrams */ 455 456 /* 457 * sysctl related items. 458 */ 459 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 460 "Internet6 Family"); 461 462 /* net.inet6 */ 463 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 464 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 465 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 466 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 467 #ifdef SCTP 468 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 469 #endif 470 #ifdef IPSEC 471 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 472 #endif /* IPSEC */ 473 474 /* net.inet6.ip6 */ 475 static int 476 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 477 { 478 int error = 0; 479 int old; 480 481 VNET_SYSCTL_ARG(req, arg1); 482 483 error = SYSCTL_OUT(req, arg1, sizeof(int)); 484 if (error || !req->newptr) 485 return (error); 486 old = V_ip6_temp_preferred_lifetime; 487 error = SYSCTL_IN(req, arg1, sizeof(int)); 488 if (V_ip6_temp_preferred_lifetime < 489 V_ip6_desync_factor + V_ip6_temp_regen_advance) { 490 V_ip6_temp_preferred_lifetime = old; 491 return (EINVAL); 492 } 493 return (error); 494 } 495 496 static int 497 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 498 { 499 int error = 0; 500 int old; 501 502 VNET_SYSCTL_ARG(req, arg1); 503 504 error = SYSCTL_OUT(req, arg1, sizeof(int)); 505 if (error || !req->newptr) 506 return (error); 507 old = V_ip6_temp_valid_lifetime; 508 error = SYSCTL_IN(req, arg1, sizeof(int)); 509 if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) { 510 V_ip6_temp_preferred_lifetime = old; 511 return (EINVAL); 512 } 513 return (error); 514 } 515 516 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 517 &VNET_NAME(ip6_forwarding), 0, ""); 518 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 519 &VNET_NAME(ip6_sendredirects), 0, ""); 520 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW, 521 &VNET_NAME(ip6_defhlim), 0, ""); 522 SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 523 &VNET_NAME(ip6stat), ip6stat, ""); 524 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 525 CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, ""); 526 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 527 CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0, 528 "Default value of per-interface flag for accepting ICMPv6 Router" 529 "Advertisement messages"); 530 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RW, 531 &VNET_NAME(ip6_keepfaith), 0, ""); 532 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval, 533 CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0, ""); 534 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, 535 CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, ""); 536 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 537 &VNET_NAME(ip6_dad_count), 0, ""); 538 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, 539 CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0, ""); 540 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, 541 CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, ""); 542 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version, 543 CTLFLAG_RD, __KAME_VERSION, 0, ""); 544 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, 545 CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0, ""); 546 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW, 547 &VNET_NAME(ip6_rr_prune), 0, ""); 548 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, 549 CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0, ""); 550 SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 551 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_preferred_lifetime), 0, 552 sysctl_ip6_temppltime, "I", ""); 553 SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 554 CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_valid_lifetime), 0, 555 sysctl_ip6_tempvltime, "I", ""); 556 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 557 &VNET_NAME(ip6_v6only), 0, ""); 558 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, 559 CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0, 560 "Default value of per-interface flag for automatically adding an IPv6" 561 " link-local address to interfaces when attached"); 562 SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 563 &VNET_NAME(rip6stat), rip6stat, ""); 564 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr, 565 CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0, ""); 566 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone, 567 CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,""); 568 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags, CTLFLAG_RW, 569 &VNET_NAME(ip6_maxfrags), 0, ""); 570 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW, 571 &VNET_NAME(ip6_mcast_pmtu), 0, ""); 572 #ifdef IPSTEALTH 573 SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 574 &VNET_NAME(ip6stealth), 0, ""); 575 #endif 576 577 #ifdef FLOWTABLE 578 VNET_DEFINE(int, ip6_output_flowtable_size) = 2048; 579 VNET_DEFINE(struct flowtable *, ip6_ft); 580 #define V_ip6_output_flowtable_size VNET(ip6_output_flowtable_size) 581 582 SYSCTL_VNET_INT(_net_inet6_ip6, OID_AUTO, output_flowtable_size, CTLFLAG_RDTUN, 583 &VNET_NAME(ip6_output_flowtable_size), 2048, 584 "number of entries in the per-cpu output flow caches"); 585 #endif 586 587 /* net.inet6.icmp6 */ 588 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, 589 CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0, ""); 590 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, 591 CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0, ""); 592 SYSCTL_VNET_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 593 &VNET_NAME(icmp6stat), icmp6stat, ""); 594 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 595 &VNET_NAME(nd6_prune), 0, ""); 596 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 597 &VNET_NAME(nd6_delay), 0, ""); 598 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, 599 CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0, ""); 600 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, 601 CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0, ""); 602 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, 603 CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0, ""); 604 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW, 605 &VNET_NAME(icmp6_nodeinfo), 0, ""); 606 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit, 607 CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0, ""); 608 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, 609 CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0, ""); 610 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 611 &VNET_NAME(nd6_debug), 0, ""); 612 SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, 613 nd6_onlink_ns_rfc4861, CTLFLAG_RW, &VNET_NAME(nd6_onlink_ns_rfc4861), 614 0, "Accept 'on-link' nd6 NS in compliance with RFC 4861."); 615