Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/netinet6/in6_proto.c
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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. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 62 */ 63 64 #include "opt_inet.h" 65 #include "opt_inet6.h" 66 #include "opt_ipsec.h" 67 #include "opt_carp.h" 68 69 #include <sys/param.h> 70 #include <sys/socket.h> 71 #include <sys/socketvar.h> 72 #include <sys/protosw.h> 73 #include <sys/kernel.h> 74 #include <sys/domain.h> 75 #include <sys/mbuf.h> 76 #include <sys/systm.h> 77 #include <sys/sysctl.h> 78 79 #include <net/if.h> 80 #include <net/radix.h> 81 #include <net/route.h> 82 83 #include <netinet/in.h> 84 #include <netinet/in_systm.h> 85 #include <netinet/in_var.h> 86 #include <netinet/ip_encap.h> 87 #include <netinet/ip.h> 88 #include <netinet/ip_var.h> 89 #include <netinet/ip6.h> 90 #include <netinet6/ip6_var.h> 91 #include <netinet/icmp6.h> 92 93 #include <netinet/tcp.h> 94 #include <netinet/tcp_timer.h> 95 #include <netinet/tcp_var.h> 96 #include <netinet/udp.h> 97 #include <netinet/udp_var.h> 98 #include <netinet6/tcp6_var.h> 99 #include <netinet6/raw_ip6.h> 100 #include <netinet6/udp6_var.h> 101 #include <netinet6/pim6_var.h> 102 #include <netinet6/nd6.h> 103 #include <netinet6/in6_prefix.h> 104 105 #ifdef IPSEC 106 #include <netinet6/ipsec.h> 107 #ifdef INET6 108 #include <netinet6/ipsec6.h> 109 #endif 110 #include <netinet6/ah.h> 111 #ifdef INET6 112 #include <netinet6/ah6.h> 113 #endif 114 #ifdef IPSEC_ESP 115 #include <netinet6/esp.h> 116 #ifdef INET6 117 #include <netinet6/esp6.h> 118 #endif 119 #endif 120 #include <netinet6/ipcomp.h> 121 #ifdef INET6 122 #include <netinet6/ipcomp6.h> 123 #endif 124 #endif /* IPSEC */ 125 126 #ifdef FAST_IPSEC 127 #include <netproto/ipsec/ipsec6.h> 128 #define IPSEC 129 #define IPSEC_ESP 130 #define ah6_input ipsec6_common_input 131 #define esp6_input ipsec6_common_input 132 #define ipcomp6_input ipsec6_common_input 133 #endif /* FAST_IPSEC */ 134 135 #include <netinet6/ip6protosw.h> 136 137 #include <net/net_osdep.h> 138 139 #ifdef CARP 140 #include <netinet/ip_carp.h> 141 #endif 142 143 144 /* 145 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 146 */ 147 148 extern struct domain inet6domain; 149 static struct pr_usrreqs nousrreqs; 150 151 #define PR_LISTEN 0 152 #define PR_ABRTACPTDIS 0 153 154 struct protosw inet6sw[] = { 155 { 156 .pr_type = 0, 157 .pr_domain = &inet6domain, 158 .pr_protocol = IPPROTO_IPV6, 159 .pr_flags = 0, 160 161 .pr_init = ip6_init, 162 .pr_fasttimo = NULL, 163 .pr_slowtimo = frag6_slowtimo, 164 .pr_drain = frag6_drain, 165 .pr_usrreqs = &nousrreqs 166 }, 167 { 168 .pr_type = SOCK_DGRAM, 169 .pr_domain = &inet6domain, 170 .pr_protocol = IPPROTO_UDP, 171 .pr_flags = PR_ATOMIC | PR_ADDR | PR_MPSAFE | PR_LASTHDR, 172 173 .pr_input = udp6_input, 174 .pr_output = 0, 175 .pr_ctlinput = udp6_ctlinput, 176 .pr_ctloutput = ip6_ctloutput_dispatch, 177 178 .pr_ctlport = cpu0_ctlport, 179 .pr_usrreqs = &udp6_usrreqs 180 }, 181 { 182 .pr_type = SOCK_STREAM, 183 .pr_domain = &inet6domain, 184 .pr_protocol = IPPROTO_TCP, 185 .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN | 186 PR_MPSAFE | PR_LASTHDR | PR_ASYNC_SEND | PR_ASYNC_RCVD, 187 188 .pr_input = tcp6_input, 189 .pr_output = NULL, 190 .pr_ctlinput = tcp6_ctlinput, 191 .pr_ctloutput = tcp_ctloutput, 192 193 .pr_ctlport = cpu0_ctlport, 194 #ifndef INET 195 /* don't call initialization and timeout routines twice */ 196 .pr_init = tcp_init, 197 .pr_slowtimo = NULL, 198 #endif 199 .pr_drain = tcp_drain, 200 .pr_usrreqs = &tcp6_usrreqs 201 }, 202 { 203 .pr_type = SOCK_RAW, 204 .pr_domain = &inet6domain, 205 .pr_protocol = IPPROTO_RAW, 206 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 207 208 .pr_input = rip6_input, 209 .pr_output = rip6_output, 210 .pr_ctlinput = rip6_ctlinput, 211 .pr_ctloutput = rip6_ctloutput, 212 213 .pr_ctlport = cpu0_ctlport, 214 .pr_usrreqs = &rip6_usrreqs 215 }, 216 { 217 .pr_type = SOCK_RAW, 218 .pr_domain = &inet6domain, 219 .pr_protocol = IPPROTO_ICMPV6, 220 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 221 222 .pr_input = icmp6_input, 223 .pr_output = rip6_output, 224 .pr_ctlinput = rip6_ctlinput, 225 .pr_ctloutput = rip6_ctloutput, 226 227 .pr_ctlport = cpu0_ctlport, 228 .pr_init = icmp6_init, 229 .pr_fasttimo = icmp6_fasttimo, 230 .pr_slowtimo = NULL, 231 .pr_drain = NULL, 232 233 .pr_usrreqs = &rip6_usrreqs 234 }, 235 { 236 .pr_type = SOCK_RAW, 237 .pr_domain = &inet6domain, 238 .pr_protocol = IPPROTO_DSTOPTS, PR_ATOMIC|PR_ADDR, 239 240 .pr_input = dest6_input, 241 .pr_output = NULL, 242 .pr_ctlinput = NULL, 243 .pr_ctloutput = NULL, 244 245 .pr_usrreqs = &nousrreqs 246 }, 247 { 248 .pr_type = SOCK_RAW, 249 .pr_domain = &inet6domain, 250 .pr_protocol = IPPROTO_ROUTING, PR_ATOMIC|PR_ADDR, 251 252 .pr_input = route6_input, 253 .pr_output = NULL, 254 .pr_ctlinput = NULL, 255 .pr_ctloutput = NULL, 256 257 .pr_usrreqs = &nousrreqs 258 }, 259 { 260 .pr_type = SOCK_RAW, 261 .pr_domain = &inet6domain, 262 .pr_protocol = IPPROTO_FRAGMENT, PR_ATOMIC|PR_ADDR, 263 264 .pr_input = frag6_input, 265 .pr_output = NULL, 266 .pr_ctlinput = NULL, 267 .pr_ctloutput = NULL, 268 269 .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, 277 278 .pr_input = ah6_input, 279 .pr_output = NULL, 280 .pr_ctlinput = NULL, 281 .pr_ctloutput = NULL, 282 283 .pr_usrreqs = &nousrreqs 284 }, 285 #ifdef IPSEC_ESP 286 { 287 .pr_type = SOCK_RAW, 288 .pr_domain = &inet6domain, 289 .pr_protocol = IPPROTO_ESP, 290 .pr_flags = PR_ATOMIC|PR_ADDR, 291 292 .pr_input = esp6_input, 293 .pr_output = NULL, 294 .pr_ctlinput = esp6_ctlinput, 295 .pr_ctloutput = NULL, 296 297 .pr_usrreqs = &nousrreqs 298 }, 299 #endif 300 { 301 .pr_type = SOCK_RAW, 302 .pr_domain = &inet6domain, 303 .pr_protocol = IPPROTO_IPCOMP, 304 .pr_flags = PR_ATOMIC|PR_ADDR, 305 306 .pr_input = ipcomp6_input, 307 .pr_output = NULL, 308 .pr_ctlinput = NULL, 309 .pr_ctloutput = NULL, 310 311 .pr_usrreqs = &nousrreqs 312 }, 313 #endif /* IPSEC */ 314 #ifdef INET 315 { 316 .pr_type = SOCK_RAW, 317 .pr_domain = &inet6domain, 318 .pr_protocol = IPPROTO_IPV4, 319 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 320 321 .pr_input = encap6_input, 322 .pr_output = rip6_output, 323 .pr_ctlinput = NULL, 324 .pr_ctloutput = rip6_ctloutput, 325 326 .pr_init = encap_init, 327 .pr_usrreqs = &rip6_usrreqs 328 }, 329 #endif /* INET */ 330 { 331 .pr_type = SOCK_RAW, 332 .pr_domain = &inet6domain, 333 .pr_protocol = IPPROTO_IPV6, 334 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 335 336 .pr_input = encap6_input, 337 .pr_output = rip6_output, 338 .pr_ctlinput = NULL, 339 .pr_ctloutput = rip6_ctloutput, 340 341 .pr_init = encap_init, 342 .pr_usrreqs = &rip6_usrreqs 343 }, 344 { 345 .pr_type = SOCK_RAW, 346 .pr_domain = &inet6domain, 347 .pr_protocol = IPPROTO_PIM, 348 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 349 350 .pr_input = pim6_input, 351 .pr_output = rip6_output, 352 .pr_ctlinput = NULL, 353 .pr_ctloutput = rip6_ctloutput, 354 355 .pr_usrreqs = &rip6_usrreqs 356 }, 357 #ifdef CARP 358 { 359 .pr_type = SOCK_RAW, 360 .pr_domain = &inet6domain, 361 .pr_protocol = IPPROTO_CARP, 362 .pr_flags = PR_ATOMIC|PR_ADDR, 363 364 .pr_input = carp6_proto_input, 365 .pr_output = rip6_output, 366 .pr_ctlinput = NULL, 367 .pr_ctloutput = rip6_ctloutput, 368 369 .pr_usrreqs = &rip6_usrreqs 370 }, 371 #endif /* CARP */ 372 373 /* raw wildcard */ 374 { 375 .pr_type = SOCK_RAW, 376 .pr_domain = &inet6domain, 377 .pr_protocol = 0, 378 .pr_flags = PR_ATOMIC|PR_ADDR, 379 380 .pr_input = rip6_input, 381 .pr_output = rip6_output, 382 .pr_ctlinput = NULL, 383 .pr_ctloutput = rip6_ctloutput, 384 385 .pr_usrreqs = &rip6_usrreqs 386 }, 387 }; 388 389 extern int in6_inithead (void **, int); 390 391 struct domain inet6domain = { 392 AF_INET6, "internet6", NULL, NULL, NULL, 393 (struct protosw *)inet6sw, 394 &inet6sw[NELEM(inet6sw)], 395 SLIST_ENTRY_INITIALIZER, 396 in6_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 397 sizeof(struct sockaddr_in6), in6_domifattach, in6_domifdetach 398 }; 399 400 DOMAIN_SET(inet6); 401 402 /* 403 * Internet configuration info 404 */ 405 #ifndef IPV6FORWARDING 406 #ifdef GATEWAY6 407 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 408 #else 409 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 410 #endif /* GATEWAY6 */ 411 #endif /* !IPV6FORWARDING */ 412 413 #ifndef IPV6_SENDREDIRECTS 414 #define IPV6_SENDREDIRECTS 1 415 #endif 416 417 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 418 int ip6_sendredirects = IPV6_SENDREDIRECTS; 419 int ip6_defhlim = IPV6_DEFHLIM; 420 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 421 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 422 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 423 int ip6_log_interval = 5; 424 int ip6_hdrnestlimit = 50; /* appropriate? */ 425 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 426 u_int32_t ip6_flow_seq; 427 int ip6_auto_flowlabel = 1; 428 int ip6_gif_hlim = 0; 429 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 430 int ip6_rr_prune = 5; /* router renumbering prefix 431 * walk list every 5 sec. */ 432 int ip6_v6only = 1; 433 434 u_int32_t ip6_id = 0UL; 435 int ip6_keepfaith = 0; 436 time_t ip6_log_time = (time_t)0L; 437 438 /* icmp6 */ 439 /* 440 * BSDI4 defines these variables in in_proto.c... 441 * XXX: what if we don't define INET? Should we define pmtu6_expire 442 * or so? (jinmei@kame.net 19990310) 443 */ 444 int pmtu_expire = 60*10; 445 int pmtu_probe = 60*2; 446 447 /* raw IP6 parameters */ 448 /* 449 * Nominal space allocated to a raw ip socket. 450 */ 451 #define RIPV6SNDQ 8192 452 #define RIPV6RCVQ 8192 453 454 u_long rip6_sendspace = RIPV6SNDQ; 455 u_long rip6_recvspace = RIPV6RCVQ; 456 457 /* ICMPV6 parameters */ 458 int icmp6_rediraccept = 1; /* accept and process redirects */ 459 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 460 int icmp6errppslim = 100; /* 100pps */ 461 int icmp6_nodeinfo = 3; /* enable/disable NI response */ 462 463 /* UDP on IP6 parameters */ 464 int udp6_sendspace = 9216; /* really max datagram size */ 465 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 466 /* 40 1K datagrams */ 467 468 /* 469 * sysctl related items. 470 */ 471 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 472 "Internet6 Family"); 473 474 /* net.inet6 */ 475 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 476 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 477 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 478 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 479 #ifdef IPSEC 480 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 481 #endif /* IPSEC */ 482 483 /* net.inet6.ip6 */ 484 static int 485 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 486 { 487 int error = 0; 488 int old; 489 490 error = SYSCTL_OUT(req, arg1, sizeof(int)); 491 if (error || !req->newptr) 492 return (error); 493 old = ip6_temp_preferred_lifetime; 494 error = SYSCTL_IN(req, arg1, sizeof(int)); 495 if (ip6_temp_preferred_lifetime < 496 ip6_desync_factor + ip6_temp_regen_advance) { 497 ip6_temp_preferred_lifetime = old; 498 return (EINVAL); 499 } 500 return (error); 501 } 502 503 static int 504 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 505 { 506 int error = 0; 507 int old; 508 509 error = SYSCTL_OUT(req, arg1, sizeof(int)); 510 if (error || !req->newptr) 511 return (error); 512 old = ip6_temp_valid_lifetime; 513 error = SYSCTL_IN(req, arg1, sizeof(int)); 514 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 515 ip6_temp_preferred_lifetime = old; 516 return (EINVAL); 517 } 518 return (error); 519 } 520 521 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW, 522 &ip6_forwarding, 0, "Enable IP forwarding between interfaces"); 523 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW, 524 &ip6_sendredirects, 0, "Enable sending IP redirects"); 525 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 526 hlim, CTLFLAG_RW, &ip6_defhlim, 0, "Default hop limit"); 527 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 528 &ip6stat, ip6stat, "IP stats"); 529 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets, 530 CTLFLAG_RW, &ip6_maxfragpackets, 0, "Maximum packets in reassembly queue"); 531 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, 532 CTLFLAG_RW, &ip6_accept_rtadv, 0, "Acts as a host not a router"); 533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 534 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, 535 "Enable packet capture for FAITH IPv4->IPv6 translator daemon"); 536 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 537 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 538 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, CTLFLAG_RW, 539 &ip6_hdrnestlimit, 0, "Upper limit of # of extension headers"); 540 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW, 541 &ip6_dad_count, 0, "Number of times to perform duplicate address detectione"); 542 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, CTLFLAG_RW, 543 &ip6_auto_flowlabel, 0, "Enable attaching flowlabel automatically"); 544 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, CTLFLAG_RW, 545 &ip6_defmcasthlim, 0, "Default multicast hop limit"); 546 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, gifhlim, CTLFLAG_RW, 547 &ip6_gif_hlim, 0, "Hop limit for gif encap packet"); 548 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 549 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, "Kame version"); 550 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, CTLFLAG_RW, 551 &ip6_use_deprecated, 0, "Allow deprecated addr as source"); 552 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 553 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, 554 "Walk timer for router renumbering"); 555 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, CTLFLAG_RW, 556 &ip6_use_tempaddr, 0, "Whether to use temporary addresses"); 557 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 558 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 559 sysctl_ip6_temppltime, "I", 560 "Preferred lifetime for tmpaddrs"); 561 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 562 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 563 sysctl_ip6_tempvltime, "I", 564 "Valid lifetime for tmpaddrs"); 565 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW, 566 &ip6_v6only, 0,"Forbid v4, restrict AF_INET6 socket for v6"); 567 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, CTLFLAG_RW, 568 &ip6_auto_linklocal, 0, "Enable auto-assigning a link-local address"); 569 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 570 &rip6stat, rip6stat, "Raw stats"); 571 572 /* net.inet6.icmp6 */ 573 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, CTLFLAG_RW, 574 &icmp6_rediraccept, 0, "If enabled, accept and process redirects"); 575 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, CTLFLAG_RW, 576 &icmp6_redirtimeout, 0, "Cache time for redirect routes"); 577 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 578 &icmp6stat, icmp6stat, "Stats"); 579 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW, 580 &nd6_prune, 0, "Prune interval"); 581 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW, 582 &nd6_delay, 0, "Reachability timeout for stale neighbors"); 583 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, CTLFLAG_RW, 584 &nd6_umaxtries, 0, "Maximum unicast query"); 585 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, CTLFLAG_RW, 586 &nd6_mmaxtries, 0, "Maximum multicast query"); 587 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, CTLFLAG_RW, 588 &nd6_useloopback, 0, "Use loopback interface for local traffic"); 589 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 590 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "Enable/disable NI response"); 591 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 592 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, 593 "ICMPv6 error maximum packet-per-second value (default: 100pps)"); 594 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint, CTLFLAG_RW, 595 &nd6_maxnudhint, 0, "Max # of subsequent upper layer hints"); 596 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW, 597 &nd6_debug, 0, "Enable debug output");
Cache object: c906800cc47f3df3de65f6e406d68cb3
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