1 /* $FreeBSD$ */ 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 * 4. 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_ipstealth.h" 68 #include "opt_carp.h" 69 #include "opt_sctp.h" 70 71 #include <sys/param.h> 72 #include <sys/socket.h> 73 #include <sys/socketvar.h> 74 #include <sys/protosw.h> 75 #include <sys/kernel.h> 76 #include <sys/domain.h> 77 #include <sys/mbuf.h> 78 #include <sys/systm.h> 79 #include <sys/sysctl.h> 80 81 #include <net/if.h> 82 #include <net/radix.h> 83 #include <net/route.h> 84 85 #include <netinet/in.h> 86 #include <netinet/in_systm.h> 87 #include <netinet/in_var.h> 88 #include <netinet/ip_encap.h> 89 #include <netinet/ip.h> 90 #include <netinet/ip_var.h> 91 #include <netinet/ip6.h> 92 #include <netinet6/ip6_var.h> 93 #include <netinet/icmp6.h> 94 95 #include <netinet/tcp.h> 96 #include <netinet/tcp_timer.h> 97 #include <netinet/tcp_var.h> 98 #include <netinet/udp.h> 99 #include <netinet/udp_var.h> 100 #include <netinet6/tcp6_var.h> 101 #include <netinet6/raw_ip6.h> 102 #include <netinet6/udp6_var.h> 103 #include <netinet6/pim6_var.h> 104 #include <netinet6/nd6.h> 105 106 #ifdef IPSEC 107 #include <netinet6/ipsec.h> 108 #ifdef INET6 109 #include <netinet6/ipsec6.h> 110 #endif 111 #include <netinet6/ah.h> 112 #ifdef INET6 113 #include <netinet6/ah6.h> 114 #endif 115 #ifdef IPSEC_ESP 116 #include <netinet6/esp.h> 117 #ifdef INET6 118 #include <netinet6/esp6.h> 119 #endif 120 #endif 121 #include <netinet6/ipcomp.h> 122 #ifdef INET6 123 #include <netinet6/ipcomp6.h> 124 #endif 125 #endif /* IPSEC */ 126 127 #ifdef DEV_CARP 128 #include <netinet/ip_carp.h> 129 #endif 130 131 #ifdef SCTP 132 #include <netinet/in_pcb.h> 133 #include <netinet/sctp_pcb.h> 134 #include <netinet/sctp.h> 135 #include <netinet/sctp_var.h> 136 #include <netinet6/sctp6_var.h> 137 #endif /* SCTP */ 138 139 #ifdef FAST_IPSEC 140 #include <netipsec/ipsec6.h> 141 #define IPSEC 142 #define IPSEC_ESP 143 #define ah6_input ipsec6_common_input 144 #define esp6_input ipsec6_common_input 145 #define ipcomp6_input ipsec6_common_input 146 #endif /* FAST_IPSEC */ 147 148 #include <netinet6/ip6protosw.h> 149 150 /* 151 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 152 */ 153 154 extern struct domain inet6domain; 155 static struct pr_usrreqs nousrreqs; 156 157 #define PR_LISTEN 0 158 #define PR_ABRTACPTDIS 0 159 160 struct ip6protosw inet6sw[] = { 161 { 162 .pr_type = 0, 163 .pr_domain = &inet6domain, 164 .pr_protocol = IPPROTO_IPV6, 165 .pr_init = ip6_init, 166 .pr_slowtimo = frag6_slowtimo, 167 .pr_drain = frag6_drain, 168 .pr_usrreqs = &nousrreqs, 169 }, 170 { 171 .pr_type = SOCK_DGRAM, 172 .pr_domain = &inet6domain, 173 .pr_protocol = IPPROTO_UDP, 174 .pr_flags = PR_ATOMIC|PR_ADDR, 175 .pr_input = udp6_input, 176 .pr_ctlinput = udp6_ctlinput, 177 .pr_ctloutput = ip6_ctloutput, 178 .pr_usrreqs = &udp6_usrreqs, 179 }, 180 { 181 .pr_type = SOCK_STREAM, 182 .pr_domain = &inet6domain, 183 .pr_protocol = IPPROTO_TCP, 184 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 185 .pr_input = tcp6_input, 186 .pr_ctlinput = tcp6_ctlinput, 187 .pr_ctloutput = tcp_ctloutput, 188 #ifndef INET /* don't call initialization and timeout routines twice */ 189 .pr_init = tcp_init, 190 .pr_fasttimo = tcp_fasttimo, 191 .pr_slowtimo = tcp_slowtimo, 192 #endif 193 .pr_drain = tcp_drain, 194 .pr_usrreqs = &tcp6_usrreqs, 195 }, 196 #ifdef SCTP 197 { 198 .pr_type = SOCK_DGRAM, 199 .pr_domain = &inet6domain, 200 .pr_protocol = IPPROTO_SCTP, 201 .pr_flags = PR_WANTRCVD, 202 .pr_input = sctp6_input, 203 .pr_ctlinput = sctp6_ctlinput, 204 .pr_ctloutput = sctp_ctloutput, 205 .pr_drain = sctp_drain, 206 .pr_usrreqs = &sctp6_usrreqs 207 }, 208 { 209 .pr_type = SOCK_SEQPACKET, 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 }, 219 220 { 221 .pr_type = SOCK_STREAM, 222 .pr_domain = &inet6domain, 223 .pr_protocol = IPPROTO_SCTP, 224 .pr_flags = PR_WANTRCVD, 225 .pr_input = sctp6_input, 226 .pr_ctlinput = sctp6_ctlinput, 227 .pr_ctloutput = sctp_ctloutput, 228 .pr_drain = sctp_drain, 229 .pr_usrreqs = &sctp6_usrreqs 230 }, 231 #endif /* SCTP */ 232 { 233 .pr_type = SOCK_RAW, 234 .pr_domain = &inet6domain, 235 .pr_protocol = IPPROTO_RAW, 236 .pr_flags = PR_ATOMIC|PR_ADDR, 237 .pr_input = rip6_input, 238 .pr_output = rip6_output, 239 .pr_ctlinput = rip6_ctlinput, 240 .pr_ctloutput = rip6_ctloutput, 241 .pr_usrreqs = &rip6_usrreqs 242 }, 243 { 244 .pr_type = SOCK_RAW, 245 .pr_domain = &inet6domain, 246 .pr_protocol = IPPROTO_ICMPV6, 247 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 248 .pr_input = icmp6_input, 249 .pr_output = rip6_output, 250 .pr_ctlinput = rip6_ctlinput, 251 .pr_ctloutput = rip6_ctloutput, 252 .pr_init = icmp6_init, 253 .pr_fasttimo = icmp6_fasttimo, 254 .pr_usrreqs = &rip6_usrreqs 255 }, 256 { 257 .pr_type = SOCK_RAW, 258 .pr_domain = &inet6domain, 259 .pr_protocol = IPPROTO_DSTOPTS, 260 .pr_flags = PR_ATOMIC|PR_ADDR, 261 .pr_input = dest6_input, 262 .pr_usrreqs = &nousrreqs 263 }, 264 { 265 .pr_type = SOCK_RAW, 266 .pr_domain = &inet6domain, 267 .pr_protocol = IPPROTO_ROUTING, 268 .pr_flags = PR_ATOMIC|PR_ADDR, 269 .pr_input = route6_input, 270 .pr_usrreqs = &nousrreqs 271 }, 272 { 273 .pr_type = SOCK_RAW, 274 .pr_domain = &inet6domain, 275 .pr_protocol = IPPROTO_FRAGMENT, 276 .pr_flags = PR_ATOMIC|PR_ADDR, 277 .pr_input = frag6_input, 278 .pr_usrreqs = &nousrreqs 279 }, 280 #ifdef IPSEC 281 { 282 .pr_type = SOCK_RAW, 283 .pr_domain = &inet6domain, 284 .pr_protocol = IPPROTO_AH, 285 .pr_flags = PR_ATOMIC|PR_ADDR, 286 .pr_input = ah6_input, 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 .pr_input = esp6_input, 296 .pr_ctlinput = esp6_ctlinput, 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 .pr_input = ipcomp6_input, 306 .pr_usrreqs = &nousrreqs, 307 }, 308 #endif /* IPSEC */ 309 #ifdef INET 310 { 311 .pr_type = SOCK_RAW, 312 .pr_domain = &inet6domain, 313 .pr_protocol = IPPROTO_IPV4, 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 #endif /* INET */ 322 { 323 .pr_type = SOCK_RAW, 324 .pr_domain = &inet6domain, 325 .pr_protocol = IPPROTO_IPV6, 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_init = encap_init, 331 .pr_usrreqs = &rip6_usrreqs 332 }, 333 { 334 .pr_type = SOCK_RAW, 335 .pr_domain = &inet6domain, 336 .pr_protocol = IPPROTO_PIM, 337 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 338 .pr_input = encap6_input, 339 .pr_output = rip6_output, 340 .pr_ctloutput = rip6_ctloutput, 341 .pr_usrreqs = &rip6_usrreqs 342 }, 343 #ifdef DEV_CARP 344 { 345 .pr_type = SOCK_RAW, 346 .pr_domain = &inet6domain, 347 .pr_protocol = IPPROTO_CARP, 348 .pr_flags = PR_ATOMIC|PR_ADDR, 349 .pr_input = carp6_input, 350 .pr_output = rip6_output, 351 .pr_ctloutput = rip6_ctloutput, 352 .pr_usrreqs = &rip6_usrreqs 353 }, 354 #endif /* DEV_CARP */ 355 /* raw wildcard */ 356 { 357 .pr_type = SOCK_RAW, 358 .pr_domain = &inet6domain, 359 .pr_flags = PR_ATOMIC|PR_ADDR, 360 .pr_input = rip6_input, 361 .pr_output = rip6_output, 362 .pr_ctloutput = rip6_ctloutput, 363 .pr_usrreqs = &rip6_usrreqs 364 }, 365 }; 366 367 extern int in6_inithead __P((void **, int)); 368 369 struct domain inet6domain = { 370 .dom_family = AF_INET6, 371 .dom_name = "internet6", 372 .dom_protosw = (struct protosw *)inet6sw, 373 .dom_protoswNPROTOSW = (struct protosw *) 374 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 375 .dom_rtattach = in6_inithead, 376 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 377 .dom_maxrtkey = sizeof(struct sockaddr_in6), 378 .dom_ifattach = in6_domifattach, 379 .dom_ifdetach = in6_domifdetach 380 }; 381 382 DOMAIN_SET(inet6); 383 384 /* 385 * Internet configuration info 386 */ 387 #ifndef IPV6FORWARDING 388 #ifdef GATEWAY6 389 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 390 #else 391 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 392 #endif /* GATEWAY6 */ 393 #endif /* !IPV6FORWARDING */ 394 395 #ifndef IPV6_SENDREDIRECTS 396 #define IPV6_SENDREDIRECTS 1 397 #endif 398 399 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 400 int ip6_sendredirects = IPV6_SENDREDIRECTS; 401 int ip6_defhlim = IPV6_DEFHLIM; 402 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 403 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 404 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 405 int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */ 406 int ip6_log_interval = 5; 407 int ip6_hdrnestlimit = 50; /* appropriate? */ 408 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 409 int ip6_auto_flowlabel = 1; 410 int ip6_gif_hlim = 0; 411 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 412 int ip6_rr_prune = 5; /* router renumbering prefix 413 * walk list every 5 sec. */ 414 int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ 415 int ip6_v6only = 1; 416 417 int ip6_keepfaith = 0; 418 time_t ip6_log_time = (time_t)0L; 419 #ifdef IPSTEALTH 420 int ip6stealth = 0; 421 #endif 422 423 /* icmp6 */ 424 /* 425 * BSDI4 defines these variables in in_proto.c... 426 * XXX: what if we don't define INET? Should we define pmtu6_expire 427 * or so? (jinmei@kame.net 19990310) 428 */ 429 int pmtu_expire = 60*10; 430 int pmtu_probe = 60*2; 431 432 /* raw IP6 parameters */ 433 /* 434 * Nominal space allocated to a raw ip socket. 435 */ 436 #define RIPV6SNDQ 8192 437 #define RIPV6RCVQ 8192 438 439 u_long rip6_sendspace = RIPV6SNDQ; 440 u_long rip6_recvspace = RIPV6RCVQ; 441 442 /* ICMPV6 parameters */ 443 int icmp6_rediraccept = 1; /* accept and process redirects */ 444 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 445 int icmp6errppslim = 100; /* 100pps */ 446 int icmp6_nodeinfo = 3; /* enable/disable NI response */ 447 448 /* UDP on IP6 parameters */ 449 int udp6_sendspace = 9216; /* really max datagram size */ 450 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 451 /* 40 1K datagrams */ 452 453 /* 454 * sysctl related items. 455 */ 456 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 457 "Internet6 Family"); 458 459 /* net.inet6 */ 460 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 461 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 462 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 463 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 464 #ifdef SCTP 465 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6"); 466 #endif 467 #ifdef IPSEC 468 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 469 #endif /* IPSEC */ 470 471 /* net.inet6.ip6 */ 472 static int 473 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 474 { 475 int error = 0; 476 int old; 477 478 error = SYSCTL_OUT(req, arg1, sizeof(int)); 479 if (error || !req->newptr) 480 return (error); 481 old = ip6_temp_preferred_lifetime; 482 error = SYSCTL_IN(req, arg1, sizeof(int)); 483 if (ip6_temp_preferred_lifetime < 484 ip6_desync_factor + ip6_temp_regen_advance) { 485 ip6_temp_preferred_lifetime = old; 486 return (EINVAL); 487 } 488 return (error); 489 } 490 491 static int 492 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 493 { 494 int error = 0; 495 int old; 496 497 error = SYSCTL_OUT(req, arg1, sizeof(int)); 498 if (error || !req->newptr) 499 return (error); 500 old = ip6_temp_valid_lifetime; 501 error = SYSCTL_IN(req, arg1, sizeof(int)); 502 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 503 ip6_temp_preferred_lifetime = old; 504 return (EINVAL); 505 } 506 return (error); 507 } 508 509 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 510 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 511 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 512 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 513 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 514 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 515 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 516 &ip6stat, ip6stat, ""); 517 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 518 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 519 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 520 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 521 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 522 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 523 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 524 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 525 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 526 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 527 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 528 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 529 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 530 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 531 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 532 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 534 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 535 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 536 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 537 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 538 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); 539 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 540 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); 541 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, 542 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); 543 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 544 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 545 sysctl_ip6_temppltime, "I", ""); 546 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 547 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 548 sysctl_ip6_tempvltime, "I", ""); 549 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, 550 v6only, CTLFLAG_RW, &ip6_v6only, 0, ""); 551 TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal); 552 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 553 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); 554 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 555 &rip6stat, rip6stat, ""); 556 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, 557 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, ""); 558 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, 559 use_defaultzone, CTLFLAG_RW, &ip6_use_defzone, 0,""); 560 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, 561 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, ""); 562 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, 563 mcast_pmtu, CTLFLAG_RW, &ip6_mcast_pmtu, 0, ""); 564 #ifdef IPSTEALTH 565 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 566 &ip6stealth, 0, ""); 567 #endif 568 569 /* net.inet6.icmp6 */ 570 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 571 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 572 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 573 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 574 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 575 &icmp6stat, icmp6stat, ""); 576 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 577 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 578 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 579 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 580 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 581 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 582 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 583 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 584 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 585 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 586 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 587 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, ""); 588 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 589 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); 590 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 591 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); 592 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 593 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, ""); 594