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, 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_fasttimo = tcp_fasttimo, 202 .pr_slowtimo = tcp_slowtimo, 203 #endif 204 .pr_drain = tcp_drain, 205 .pr_usrreqs = &tcp6_usrreqs 206 }, 207 { 208 .pr_type = SOCK_RAW, 209 .pr_domain = &inet6domain, 210 .pr_protocol = IPPROTO_RAW, 211 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 212 213 .pr_input = rip6_input, 214 .pr_output = rip6_output, 215 .pr_ctlinput = rip6_ctlinput, 216 .pr_ctloutput = rip6_ctloutput, 217 218 .pr_ctlport = cpu0_ctlport, 219 .pr_usrreqs = &rip6_usrreqs 220 }, 221 { 222 .pr_type = SOCK_RAW, 223 .pr_domain = &inet6domain, 224 .pr_protocol = IPPROTO_ICMPV6, 225 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 226 227 .pr_input = icmp6_input, 228 .pr_output = rip6_output, 229 .pr_ctlinput = rip6_ctlinput, 230 .pr_ctloutput = rip6_ctloutput, 231 232 .pr_ctlport = cpu0_ctlport, 233 .pr_init = icmp6_init, 234 .pr_fasttimo = icmp6_fasttimo, 235 .pr_slowtimo = NULL, 236 .pr_drain = NULL, 237 238 .pr_usrreqs = &rip6_usrreqs 239 }, 240 { 241 .pr_type = SOCK_RAW, 242 .pr_domain = &inet6domain, 243 .pr_protocol = IPPROTO_DSTOPTS, PR_ATOMIC|PR_ADDR, 244 245 .pr_input = dest6_input, 246 .pr_output = NULL, 247 .pr_ctlinput = NULL, 248 .pr_ctloutput = NULL, 249 250 .pr_usrreqs = &nousrreqs 251 }, 252 { 253 .pr_type = SOCK_RAW, 254 .pr_domain = &inet6domain, 255 .pr_protocol = IPPROTO_ROUTING, PR_ATOMIC|PR_ADDR, 256 257 .pr_input = route6_input, 258 .pr_output = NULL, 259 .pr_ctlinput = NULL, 260 .pr_ctloutput = NULL, 261 262 .pr_usrreqs = &nousrreqs 263 }, 264 { 265 .pr_type = SOCK_RAW, 266 .pr_domain = &inet6domain, 267 .pr_protocol = IPPROTO_FRAGMENT, PR_ATOMIC|PR_ADDR, 268 269 .pr_input = frag6_input, 270 .pr_output = NULL, 271 .pr_ctlinput = NULL, 272 .pr_ctloutput = NULL, 273 274 .pr_usrreqs = &nousrreqs 275 }, 276 #ifdef IPSEC 277 { 278 .pr_type = SOCK_RAW, 279 .pr_domain = &inet6domain, 280 .pr_protocol = IPPROTO_AH, 281 .pr_flags = PR_ATOMIC|PR_ADDR, 282 283 .pr_input = ah6_input, 284 .pr_output = NULL, 285 .pr_ctlinput = NULL, 286 .pr_ctloutput = NULL, 287 288 .pr_usrreqs = &nousrreqs 289 }, 290 #ifdef IPSEC_ESP 291 { 292 .pr_type = SOCK_RAW, 293 .pr_domain = &inet6domain, 294 .pr_protocol = IPPROTO_ESP, 295 .pr_flags = PR_ATOMIC|PR_ADDR, 296 297 .pr_input = esp6_input, 298 .pr_output = NULL, 299 .pr_ctlinput = esp6_ctlinput, 300 .pr_ctloutput = NULL, 301 302 .pr_usrreqs = &nousrreqs 303 }, 304 #endif 305 { 306 .pr_type = SOCK_RAW, 307 .pr_domain = &inet6domain, 308 .pr_protocol = IPPROTO_IPCOMP, 309 .pr_flags = PR_ATOMIC|PR_ADDR, 310 311 .pr_input = ipcomp6_input, 312 .pr_output = NULL, 313 .pr_ctlinput = NULL, 314 .pr_ctloutput = NULL, 315 316 .pr_usrreqs = &nousrreqs 317 }, 318 #endif /* IPSEC */ 319 #ifdef INET 320 { 321 .pr_type = SOCK_RAW, 322 .pr_domain = &inet6domain, 323 .pr_protocol = IPPROTO_IPV4, 324 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 325 326 .pr_input = encap6_input, 327 .pr_output = rip6_output, 328 .pr_ctlinput = NULL, 329 .pr_ctloutput = rip6_ctloutput, 330 331 .pr_init = encap_init, 332 .pr_usrreqs = &rip6_usrreqs 333 }, 334 #endif /* INET */ 335 { 336 .pr_type = SOCK_RAW, 337 .pr_domain = &inet6domain, 338 .pr_protocol = IPPROTO_IPV6, 339 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 340 341 .pr_input = encap6_input, 342 .pr_output = rip6_output, 343 .pr_ctlinput = NULL, 344 .pr_ctloutput = rip6_ctloutput, 345 346 .pr_init = encap_init, 347 .pr_usrreqs = &rip6_usrreqs 348 }, 349 { 350 .pr_type = SOCK_RAW, 351 .pr_domain = &inet6domain, 352 .pr_protocol = IPPROTO_PIM, 353 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 354 355 .pr_input = pim6_input, 356 .pr_output = rip6_output, 357 .pr_ctlinput = NULL, 358 .pr_ctloutput = rip6_ctloutput, 359 360 .pr_usrreqs = &rip6_usrreqs 361 }, 362 #ifdef CARP 363 { 364 .pr_type = SOCK_RAW, 365 .pr_domain = &inet6domain, 366 .pr_protocol = IPPROTO_CARP, 367 .pr_flags = PR_ATOMIC|PR_ADDR, 368 369 .pr_input = carp6_input, 370 .pr_output = rip6_output, 371 .pr_ctlinput = NULL, 372 .pr_ctloutput = rip6_ctloutput, 373 374 .pr_usrreqs = &rip6_usrreqs 375 }, 376 #endif /* CARP */ 377 378 /* raw wildcard */ 379 { 380 .pr_type = SOCK_RAW, 381 .pr_domain = &inet6domain, 382 .pr_protocol = 0, 383 .pr_flags = PR_ATOMIC|PR_ADDR, 384 385 .pr_input = rip6_input, 386 .pr_output = rip6_output, 387 .pr_ctlinput = NULL, 388 .pr_ctloutput = rip6_ctloutput, 389 390 .pr_usrreqs = &rip6_usrreqs 391 }, 392 }; 393 394 extern int in6_inithead (void **, int); 395 396 struct domain inet6domain = { 397 AF_INET6, "internet6", NULL, NULL, NULL, 398 (struct protosw *)inet6sw, 399 (struct protosw *)&inet6sw[NELEM(inet6sw)], 400 SLIST_ENTRY_INITIALIZER, 401 in6_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 402 sizeof(struct sockaddr_in6), in6_domifattach, in6_domifdetach 403 }; 404 405 DOMAIN_SET(inet6); 406 407 /* 408 * Internet configuration info 409 */ 410 #ifndef IPV6FORWARDING 411 #ifdef GATEWAY6 412 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 413 #else 414 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 415 #endif /* GATEWAY6 */ 416 #endif /* !IPV6FORWARDING */ 417 418 #ifndef IPV6_SENDREDIRECTS 419 #define IPV6_SENDREDIRECTS 1 420 #endif 421 422 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 423 int ip6_sendredirects = IPV6_SENDREDIRECTS; 424 int ip6_defhlim = IPV6_DEFHLIM; 425 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 426 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 427 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 428 int ip6_log_interval = 5; 429 int ip6_hdrnestlimit = 50; /* appropriate? */ 430 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 431 u_int32_t ip6_flow_seq; 432 int ip6_auto_flowlabel = 1; 433 int ip6_gif_hlim = 0; 434 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 435 int ip6_rr_prune = 5; /* router renumbering prefix 436 * walk list every 5 sec. */ 437 int ip6_v6only = 1; 438 439 u_int32_t ip6_id = 0UL; 440 int ip6_keepfaith = 0; 441 time_t ip6_log_time = (time_t)0L; 442 443 /* icmp6 */ 444 /* 445 * BSDI4 defines these variables in in_proto.c... 446 * XXX: what if we don't define INET? Should we define pmtu6_expire 447 * or so? (jinmei@kame.net 19990310) 448 */ 449 int pmtu_expire = 60*10; 450 int pmtu_probe = 60*2; 451 452 /* raw IP6 parameters */ 453 /* 454 * Nominal space allocated to a raw ip socket. 455 */ 456 #define RIPV6SNDQ 8192 457 #define RIPV6RCVQ 8192 458 459 u_long rip6_sendspace = RIPV6SNDQ; 460 u_long rip6_recvspace = RIPV6RCVQ; 461 462 /* ICMPV6 parameters */ 463 int icmp6_rediraccept = 1; /* accept and process redirects */ 464 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 465 int icmp6errppslim = 100; /* 100pps */ 466 int icmp6_nodeinfo = 3; /* enable/disable NI response */ 467 468 /* UDP on IP6 parameters */ 469 int udp6_sendspace = 9216; /* really max datagram size */ 470 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 471 /* 40 1K datagrams */ 472 473 /* 474 * sysctl related items. 475 */ 476 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 477 "Internet6 Family"); 478 479 /* net.inet6 */ 480 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 481 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 482 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 483 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 484 #ifdef IPSEC 485 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 486 #endif /* IPSEC */ 487 488 /* net.inet6.ip6 */ 489 static int 490 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 491 { 492 int error = 0; 493 int old; 494 495 error = SYSCTL_OUT(req, arg1, sizeof(int)); 496 if (error || !req->newptr) 497 return (error); 498 old = ip6_temp_preferred_lifetime; 499 error = SYSCTL_IN(req, arg1, sizeof(int)); 500 if (ip6_temp_preferred_lifetime < 501 ip6_desync_factor + ip6_temp_regen_advance) { 502 ip6_temp_preferred_lifetime = old; 503 return (EINVAL); 504 } 505 return (error); 506 } 507 508 static int 509 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 510 { 511 int error = 0; 512 int old; 513 514 error = SYSCTL_OUT(req, arg1, sizeof(int)); 515 if (error || !req->newptr) 516 return (error); 517 old = ip6_temp_valid_lifetime; 518 error = SYSCTL_IN(req, arg1, sizeof(int)); 519 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 520 ip6_temp_preferred_lifetime = old; 521 return (EINVAL); 522 } 523 return (error); 524 } 525 526 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 527 &ip6_forwarding, 0, "Enable IP forwarding between interfaces"); 528 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 529 &ip6_sendredirects, 0, "Enable sending IP redirects"); 530 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 531 hlim, CTLFLAG_RW, &ip6_defhlim, 0, "Default hop limit"); 532 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 533 &ip6stat, ip6stat, "IP stats"); 534 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 535 CTLFLAG_RW, &ip6_maxfragpackets, 0, "Maximum packets in reassembly queue"); 536 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 537 CTLFLAG_RW, &ip6_accept_rtadv, 0, "Acts as a host not a router"); 538 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 539 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, 540 "Enable packet capture for FAITH IPv4->IPv6 translator daemon"); 541 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 542 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 543 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, CTLFLAG_RW, 544 &ip6_hdrnestlimit, 0, "Upper limit of # of extension headers"); 545 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 546 &ip6_dad_count, 0, "Number of times to perform duplicate address detectione"); 547 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, CTLFLAG_RW, 548 &ip6_auto_flowlabel, 0, "Enable attaching flowlabel automatically"); 549 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, CTLFLAG_RW, 550 &ip6_defmcasthlim, 0, "Default multicast hop limit"); 551 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, gifhlim, CTLFLAG_RW, 552 &ip6_gif_hlim, 0, "Hop limit for gif encap packet"); 553 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 554 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "Kame version"); 555 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, CTLFLAG_RW, 556 &ip6_use_deprecated, 0, "Allow deprecated addr as source"); 557 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 558 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, 559 "Walk timer for router renumbering"); 560 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, CTLFLAG_RW, 561 &ip6_use_tempaddr, 0, "Whether to use temporary addresses"); 562 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 563 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 564 sysctl_ip6_temppltime, "I", 565 "Preferred lifetime for tmpaddrs"); 566 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 567 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 568 sysctl_ip6_tempvltime, "I", 569 "Valid lifetime for tmpaddrs"); 570 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 571 &ip6_v6only, 0,"Forbid v4, restrict AF_INET6 socket for v6"); 572 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, CTLFLAG_RW, 573 &ip6_auto_linklocal, 0, "Enable auto-assigning a link-local address"); 574 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 575 &rip6stat, rip6stat, "Raw stats"); 576 577 /* net.inet6.icmp6 */ 578 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, CTLFLAG_RW, 579 &icmp6_rediraccept, 0, "If enabled, accept and process redirects"); 580 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, CTLFLAG_RW, 581 &icmp6_redirtimeout, 0, "Cache time for redirect routes"); 582 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 583 &icmp6stat, icmp6stat, "Stats"); 584 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 585 &nd6_prune, 0, "Prune interval"); 586 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 587 &nd6_delay, 0, "Reachability timeout for stale neighbors"); 588 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, CTLFLAG_RW, 589 &nd6_umaxtries, 0, "Maximum unicast query"); 590 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, CTLFLAG_RW, 591 &nd6_mmaxtries, 0, "Maximum multicast query"); 592 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, CTLFLAG_RW, 593 &nd6_useloopback, 0, "Use loopback interface for local traffic"); 594 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 595 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "Enable/disable NI response"); 596 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 597 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, 598 "ICMPv6 error maximum packet-per-second value (default: 100pps)"); 599 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, CTLFLAG_RW, 600 &nd6_maxnudhint, 0, "Max # of subsequent upper layer hints"); 601 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 602 &nd6_debug, 0, "Enable debug output"); 603