1 /* $FreeBSD: src/sys/netinet6/in6_proto.c,v 1.6.2.9 2003/01/24 05:11:35 sam Exp $ */ 2 /* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 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 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 66 */ 67 68 #include "opt_inet.h" 69 #include "opt_inet6.h" 70 #include "opt_ipsec.h" 71 #include "opt_carp.h" 72 73 #include <sys/param.h> 74 #include <sys/socket.h> 75 #include <sys/socketvar.h> 76 #include <sys/protosw.h> 77 #include <sys/kernel.h> 78 #include <sys/domain.h> 79 #include <sys/mbuf.h> 80 #include <sys/systm.h> 81 #include <sys/sysctl.h> 82 83 #include <net/if.h> 84 #include <net/radix.h> 85 #include <net/route.h> 86 87 #include <netinet/in.h> 88 #include <netinet/in_systm.h> 89 #include <netinet/in_var.h> 90 #include <netinet/ip_encap.h> 91 #include <netinet/ip.h> 92 #include <netinet/ip_var.h> 93 #include <netinet/ip6.h> 94 #include <netinet6/ip6_var.h> 95 #include <netinet/icmp6.h> 96 97 #include <netinet/tcp.h> 98 #include <netinet/tcp_timer.h> 99 #include <netinet/tcp_var.h> 100 #include <netinet/udp.h> 101 #include <netinet/udp_var.h> 102 #include <netinet6/tcp6_var.h> 103 #include <netinet6/raw_ip6.h> 104 #include <netinet6/udp6_var.h> 105 #include <netinet6/pim6_var.h> 106 #include <netinet6/nd6.h> 107 #include <netinet6/in6_prefix.h> 108 109 #ifdef IPSEC 110 #include <netinet6/ipsec.h> 111 #ifdef INET6 112 #include <netinet6/ipsec6.h> 113 #endif 114 #include <netinet6/ah.h> 115 #ifdef INET6 116 #include <netinet6/ah6.h> 117 #endif 118 #ifdef IPSEC_ESP 119 #include <netinet6/esp.h> 120 #ifdef INET6 121 #include <netinet6/esp6.h> 122 #endif 123 #endif 124 #include <netinet6/ipcomp.h> 125 #ifdef INET6 126 #include <netinet6/ipcomp6.h> 127 #endif 128 #endif /* IPSEC */ 129 130 #ifdef FAST_IPSEC 131 #include <netproto/ipsec/ipsec6.h> 132 #define IPSEC 133 #define IPSEC_ESP 134 #define ah6_input ipsec6_common_input 135 #define esp6_input ipsec6_common_input 136 #define ipcomp6_input ipsec6_common_input 137 #endif /* FAST_IPSEC */ 138 139 #include <netinet6/ip6protosw.h> 140 141 #include <net/net_osdep.h> 142 143 #ifdef CARP 144 #include <netinet/ip_carp.h> 145 #endif 146 147 148 /* 149 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 150 */ 151 152 extern struct domain inet6domain; 153 static struct pr_usrreqs nousrreqs; 154 155 #define PR_LISTEN 0 156 #define PR_ABRTACPTDIS 0 157 158 struct protosw inet6sw[] = { 159 { 160 .pr_type = 0, 161 .pr_domain = &inet6domain, 162 .pr_protocol = IPPROTO_IPV6, 163 .pr_flags = 0, 164 165 .pr_init = ip6_init, 166 .pr_fasttimo = NULL, 167 .pr_slowtimo = frag6_slowtimo, 168 .pr_drain = frag6_drain, 169 .pr_usrreqs = &nousrreqs 170 }, 171 { 172 .pr_type = SOCK_DGRAM, 173 .pr_domain = &inet6domain, 174 .pr_protocol = IPPROTO_UDP, 175 .pr_flags = PR_ATOMIC | PR_ADDR | PR_MPSAFE | PR_LASTHDR, 176 177 .pr_input = udp6_input, 178 .pr_output = 0, 179 .pr_ctlinput = udp6_ctlinput, 180 .pr_ctloutput = ip6_ctloutput_dispatch, 181 182 .pr_ctlport = cpu0_ctlport, 183 .pr_usrreqs = &udp6_usrreqs 184 }, 185 { 186 .pr_type = SOCK_STREAM, 187 .pr_domain = &inet6domain, 188 .pr_protocol = IPPROTO_TCP, 189 .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN | 190 PR_MPSAFE | PR_LASTHDR | PR_ASYNC_SEND | PR_ASYNC_RCVD, 191 192 .pr_input = tcp6_input, 193 .pr_output = NULL, 194 .pr_ctlinput = tcp6_ctlinput, 195 .pr_ctloutput = tcp_ctloutput, 196 197 .pr_ctlport = cpu0_ctlport, 198 #ifndef INET 199 /* don't call initialization and timeout routines twice */ 200 .pr_init = tcp_init, 201 .pr_slowtimo = NULL, 202 #endif 203 .pr_drain = tcp_drain, 204 .pr_usrreqs = &tcp6_usrreqs 205 }, 206 { 207 .pr_type = SOCK_RAW, 208 .pr_domain = &inet6domain, 209 .pr_protocol = IPPROTO_RAW, 210 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 211 212 .pr_input = rip6_input, 213 .pr_output = rip6_output, 214 .pr_ctlinput = rip6_ctlinput, 215 .pr_ctloutput = rip6_ctloutput, 216 217 .pr_ctlport = cpu0_ctlport, 218 .pr_usrreqs = &rip6_usrreqs 219 }, 220 { 221 .pr_type = SOCK_RAW, 222 .pr_domain = &inet6domain, 223 .pr_protocol = IPPROTO_ICMPV6, 224 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 225 226 .pr_input = icmp6_input, 227 .pr_output = rip6_output, 228 .pr_ctlinput = rip6_ctlinput, 229 .pr_ctloutput = rip6_ctloutput, 230 231 .pr_ctlport = cpu0_ctlport, 232 .pr_init = icmp6_init, 233 .pr_fasttimo = icmp6_fasttimo, 234 .pr_slowtimo = NULL, 235 .pr_drain = NULL, 236 237 .pr_usrreqs = &rip6_usrreqs 238 }, 239 { 240 .pr_type = SOCK_RAW, 241 .pr_domain = &inet6domain, 242 .pr_protocol = IPPROTO_DSTOPTS, PR_ATOMIC|PR_ADDR, 243 244 .pr_input = dest6_input, 245 .pr_output = NULL, 246 .pr_ctlinput = NULL, 247 .pr_ctloutput = NULL, 248 249 .pr_usrreqs = &nousrreqs 250 }, 251 { 252 .pr_type = SOCK_RAW, 253 .pr_domain = &inet6domain, 254 .pr_protocol = IPPROTO_ROUTING, PR_ATOMIC|PR_ADDR, 255 256 .pr_input = route6_input, 257 .pr_output = NULL, 258 .pr_ctlinput = NULL, 259 .pr_ctloutput = NULL, 260 261 .pr_usrreqs = &nousrreqs 262 }, 263 { 264 .pr_type = SOCK_RAW, 265 .pr_domain = &inet6domain, 266 .pr_protocol = IPPROTO_FRAGMENT, PR_ATOMIC|PR_ADDR, 267 268 .pr_input = frag6_input, 269 .pr_output = NULL, 270 .pr_ctlinput = NULL, 271 .pr_ctloutput = NULL, 272 273 .pr_usrreqs = &nousrreqs 274 }, 275 #ifdef IPSEC 276 { 277 .pr_type = SOCK_RAW, 278 .pr_domain = &inet6domain, 279 .pr_protocol = IPPROTO_AH, 280 .pr_flags = PR_ATOMIC|PR_ADDR, 281 282 .pr_input = ah6_input, 283 .pr_output = NULL, 284 .pr_ctlinput = NULL, 285 .pr_ctloutput = NULL, 286 287 .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, 295 296 .pr_input = esp6_input, 297 .pr_output = NULL, 298 .pr_ctlinput = esp6_ctlinput, 299 .pr_ctloutput = NULL, 300 301 .pr_usrreqs = &nousrreqs 302 }, 303 #endif 304 { 305 .pr_type = SOCK_RAW, 306 .pr_domain = &inet6domain, 307 .pr_protocol = IPPROTO_IPCOMP, 308 .pr_flags = PR_ATOMIC|PR_ADDR, 309 310 .pr_input = ipcomp6_input, 311 .pr_output = NULL, 312 .pr_ctlinput = NULL, 313 .pr_ctloutput = NULL, 314 315 .pr_usrreqs = &nousrreqs 316 }, 317 #endif /* IPSEC */ 318 #ifdef INET 319 { 320 .pr_type = SOCK_RAW, 321 .pr_domain = &inet6domain, 322 .pr_protocol = IPPROTO_IPV4, 323 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 324 325 .pr_input = encap6_input, 326 .pr_output = rip6_output, 327 .pr_ctlinput = NULL, 328 .pr_ctloutput = rip6_ctloutput, 329 330 .pr_init = encap_init, 331 .pr_usrreqs = &rip6_usrreqs 332 }, 333 #endif /* INET */ 334 { 335 .pr_type = SOCK_RAW, 336 .pr_domain = &inet6domain, 337 .pr_protocol = IPPROTO_IPV6, 338 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 339 340 .pr_input = encap6_input, 341 .pr_output = rip6_output, 342 .pr_ctlinput = NULL, 343 .pr_ctloutput = rip6_ctloutput, 344 345 .pr_init = encap_init, 346 .pr_usrreqs = &rip6_usrreqs 347 }, 348 { 349 .pr_type = SOCK_RAW, 350 .pr_domain = &inet6domain, 351 .pr_protocol = IPPROTO_PIM, 352 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 353 354 .pr_input = pim6_input, 355 .pr_output = rip6_output, 356 .pr_ctlinput = NULL, 357 .pr_ctloutput = rip6_ctloutput, 358 359 .pr_usrreqs = &rip6_usrreqs 360 }, 361 #ifdef CARP 362 { 363 .pr_type = SOCK_RAW, 364 .pr_domain = &inet6domain, 365 .pr_protocol = IPPROTO_CARP, 366 .pr_flags = PR_ATOMIC|PR_ADDR, 367 368 .pr_input = carp6_proto_input, 369 .pr_output = rip6_output, 370 .pr_ctlinput = NULL, 371 .pr_ctloutput = rip6_ctloutput, 372 373 .pr_usrreqs = &rip6_usrreqs 374 }, 375 #endif /* CARP */ 376 377 /* raw wildcard */ 378 { 379 .pr_type = SOCK_RAW, 380 .pr_domain = &inet6domain, 381 .pr_protocol = 0, 382 .pr_flags = PR_ATOMIC|PR_ADDR, 383 384 .pr_input = rip6_input, 385 .pr_output = rip6_output, 386 .pr_ctlinput = NULL, 387 .pr_ctloutput = rip6_ctloutput, 388 389 .pr_usrreqs = &rip6_usrreqs 390 }, 391 }; 392 393 extern int in6_inithead (void **, int); 394 395 struct domain inet6domain = { 396 AF_INET6, "internet6", NULL, NULL, NULL, 397 (struct protosw *)inet6sw, 398 &inet6sw[NELEM(inet6sw)], 399 SLIST_ENTRY_INITIALIZER, 400 in6_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 401 sizeof(struct sockaddr_in6), in6_domifattach, in6_domifdetach 402 }; 403 404 DOMAIN_SET(inet6); 405 406 /* 407 * Internet configuration info 408 */ 409 #ifndef IPV6FORWARDING 410 #ifdef GATEWAY6 411 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 412 #else 413 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 414 #endif /* GATEWAY6 */ 415 #endif /* !IPV6FORWARDING */ 416 417 #ifndef IPV6_SENDREDIRECTS 418 #define IPV6_SENDREDIRECTS 1 419 #endif 420 421 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 422 int ip6_sendredirects = IPV6_SENDREDIRECTS; 423 int ip6_defhlim = IPV6_DEFHLIM; 424 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 425 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 426 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 427 int ip6_log_interval = 5; 428 int ip6_hdrnestlimit = 50; /* appropriate? */ 429 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 430 u_int32_t ip6_flow_seq; 431 int ip6_auto_flowlabel = 1; 432 int ip6_gif_hlim = 0; 433 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 434 int ip6_rr_prune = 5; /* router renumbering prefix 435 * walk list every 5 sec. */ 436 int ip6_v6only = 1; 437 438 u_int32_t ip6_id = 0UL; 439 int ip6_keepfaith = 0; 440 time_t ip6_log_time = (time_t)0L; 441 442 /* icmp6 */ 443 /* 444 * BSDI4 defines these variables in in_proto.c... 445 * XXX: what if we don't define INET? Should we define pmtu6_expire 446 * or so? (jinmei@kame.net 19990310) 447 */ 448 int pmtu_expire = 60*10; 449 int pmtu_probe = 60*2; 450 451 /* raw IP6 parameters */ 452 /* 453 * Nominal space allocated to a raw ip socket. 454 */ 455 #define RIPV6SNDQ 8192 456 #define RIPV6RCVQ 8192 457 458 u_long rip6_sendspace = RIPV6SNDQ; 459 u_long rip6_recvspace = RIPV6RCVQ; 460 461 /* ICMPV6 parameters */ 462 int icmp6_rediraccept = 1; /* accept and process redirects */ 463 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 464 int icmp6errppslim = 100; /* 100pps */ 465 int icmp6_nodeinfo = 3; /* enable/disable NI response */ 466 467 /* UDP on IP6 parameters */ 468 int udp6_sendspace = 9216; /* really max datagram size */ 469 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 470 /* 40 1K datagrams */ 471 472 /* 473 * sysctl related items. 474 */ 475 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 476 "Internet6 Family"); 477 478 /* net.inet6 */ 479 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 480 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 481 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 482 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 483 #ifdef IPSEC 484 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 485 #endif /* IPSEC */ 486 487 /* net.inet6.ip6 */ 488 static int 489 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 490 { 491 int error = 0; 492 int old; 493 494 error = SYSCTL_OUT(req, arg1, sizeof(int)); 495 if (error || !req->newptr) 496 return (error); 497 old = ip6_temp_preferred_lifetime; 498 error = SYSCTL_IN(req, arg1, sizeof(int)); 499 if (ip6_temp_preferred_lifetime < 500 ip6_desync_factor + ip6_temp_regen_advance) { 501 ip6_temp_preferred_lifetime = old; 502 return (EINVAL); 503 } 504 return (error); 505 } 506 507 static int 508 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 509 { 510 int error = 0; 511 int old; 512 513 error = SYSCTL_OUT(req, arg1, sizeof(int)); 514 if (error || !req->newptr) 515 return (error); 516 old = ip6_temp_valid_lifetime; 517 error = SYSCTL_IN(req, arg1, sizeof(int)); 518 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 519 ip6_temp_preferred_lifetime = old; 520 return (EINVAL); 521 } 522 return (error); 523 } 524 525 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 526 &ip6_forwarding, 0, "Enable IP forwarding between interfaces"); 527 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 528 &ip6_sendredirects, 0, "Enable sending IP redirects"); 529 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 530 hlim, CTLFLAG_RW, &ip6_defhlim, 0, "Default hop limit"); 531 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 532 &ip6stat, ip6stat, "IP stats"); 533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 534 CTLFLAG_RW, &ip6_maxfragpackets, 0, "Maximum packets in reassembly queue"); 535 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 536 CTLFLAG_RW, &ip6_accept_rtadv, 0, "Acts as a host not a router"); 537 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 538 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, 539 "Enable packet capture for FAITH IPv4->IPv6 translator daemon"); 540 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 541 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 542 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, CTLFLAG_RW, 543 &ip6_hdrnestlimit, 0, "Upper limit of # of extension headers"); 544 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 545 &ip6_dad_count, 0, "Number of times to perform duplicate address detectione"); 546 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, CTLFLAG_RW, 547 &ip6_auto_flowlabel, 0, "Enable attaching flowlabel automatically"); 548 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, CTLFLAG_RW, 549 &ip6_defmcasthlim, 0, "Default multicast hop limit"); 550 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, gifhlim, CTLFLAG_RW, 551 &ip6_gif_hlim, 0, "Hop limit for gif encap packet"); 552 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 553 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "Kame version"); 554 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, CTLFLAG_RW, 555 &ip6_use_deprecated, 0, "Allow deprecated addr as source"); 556 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 557 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, 558 "Walk timer for router renumbering"); 559 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, CTLFLAG_RW, 560 &ip6_use_tempaddr, 0, "Whether to use temporary addresses"); 561 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 562 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 563 sysctl_ip6_temppltime, "I", 564 "Preferred lifetime for tmpaddrs"); 565 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 566 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 567 sysctl_ip6_tempvltime, "I", 568 "Valid lifetime for tmpaddrs"); 569 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 570 &ip6_v6only, 0,"Forbid v4, restrict AF_INET6 socket for v6"); 571 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, CTLFLAG_RW, 572 &ip6_auto_linklocal, 0, "Enable auto-assigning a link-local address"); 573 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 574 &rip6stat, rip6stat, "Raw stats"); 575 576 /* net.inet6.icmp6 */ 577 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, CTLFLAG_RW, 578 &icmp6_rediraccept, 0, "If enabled, accept and process redirects"); 579 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, CTLFLAG_RW, 580 &icmp6_redirtimeout, 0, "Cache time for redirect routes"); 581 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 582 &icmp6stat, icmp6stat, "Stats"); 583 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 584 &nd6_prune, 0, "Prune interval"); 585 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 586 &nd6_delay, 0, "Reachability timeout for stale neighbors"); 587 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, CTLFLAG_RW, 588 &nd6_umaxtries, 0, "Maximum unicast query"); 589 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, CTLFLAG_RW, 590 &nd6_mmaxtries, 0, "Maximum multicast query"); 591 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, CTLFLAG_RW, 592 &nd6_useloopback, 0, "Use loopback interface for local traffic"); 593 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 594 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "Enable/disable NI response"); 595 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 596 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, 597 "ICMPv6 error maximum packet-per-second value (default: 100pps)"); 598 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, CTLFLAG_RW, 599 &nd6_maxnudhint, 0, "Max # of subsequent upper layer hints"); 600 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 601 &nd6_debug, 0, "Enable debug output"); 602