Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/netinet6/in6_proto.c
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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 72 #include <sys/param.h> 73 #include <sys/socket.h> 74 #include <sys/socketvar.h> 75 #include <sys/protosw.h> 76 #include <sys/kernel.h> 77 #include <sys/domain.h> 78 #include <sys/mbuf.h> 79 #include <sys/systm.h> 80 #include <sys/sysctl.h> 81 82 #include <net/if.h> 83 #include <net/radix.h> 84 #include <net/route.h> 85 86 #include <netinet/in.h> 87 #include <netinet/in_systm.h> 88 #include <netinet/in_var.h> 89 #include <netinet/ip_encap.h> 90 #include <netinet/ip.h> 91 #include <netinet/ip_var.h> 92 #include <netinet/ip6.h> 93 #include <netinet6/ip6_var.h> 94 #include <netinet/icmp6.h> 95 96 #include <netinet/tcp.h> 97 #include <netinet/tcp_timer.h> 98 #include <netinet/tcp_var.h> 99 #include <netinet/udp.h> 100 #include <netinet/udp_var.h> 101 #include <netinet6/tcp6_var.h> 102 #include <netinet6/raw_ip6.h> 103 #include <netinet6/udp6_var.h> 104 #include <netinet6/pim6_var.h> 105 #include <netinet6/nd6.h> 106 107 #ifdef IPSEC 108 #include <netinet6/ipsec.h> 109 #ifdef INET6 110 #include <netinet6/ipsec6.h> 111 #endif 112 #include <netinet6/ah.h> 113 #ifdef INET6 114 #include <netinet6/ah6.h> 115 #endif 116 #ifdef IPSEC_ESP 117 #include <netinet6/esp.h> 118 #ifdef INET6 119 #include <netinet6/esp6.h> 120 #endif 121 #endif 122 #include <netinet6/ipcomp.h> 123 #ifdef INET6 124 #include <netinet6/ipcomp6.h> 125 #endif 126 #endif /* IPSEC */ 127 128 #ifdef DEV_CARP 129 #include <netinet/ip_carp.h> 130 #endif 131 132 #ifdef FAST_IPSEC 133 #include <netipsec/ipsec6.h> 134 #define IPSEC 135 #define IPSEC_ESP 136 #define ah6_input ipsec6_common_input 137 #define esp6_input ipsec6_common_input 138 #define ipcomp6_input ipsec6_common_input 139 #endif /* FAST_IPSEC */ 140 141 #include <netinet6/ip6protosw.h> 142 143 #include <net/net_osdep.h> 144 145 /* 146 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 147 */ 148 149 extern struct domain inet6domain; 150 static struct pr_usrreqs nousrreqs; 151 152 #define PR_LISTEN 0 153 #define PR_ABRTACPTDIS 0 154 155 struct ip6protosw inet6sw[] = { 156 { 157 .pr_type = 0, 158 .pr_domain = &inet6domain, 159 .pr_protocol = IPPROTO_IPV6, 160 .pr_init = ip6_init, 161 .pr_slowtimo = frag6_slowtimo, 162 .pr_drain = frag6_drain, 163 .pr_usrreqs = &nousrreqs, 164 }, 165 { 166 .pr_type = SOCK_DGRAM, 167 .pr_domain = &inet6domain, 168 .pr_protocol = IPPROTO_UDP, 169 .pr_flags = PR_ATOMIC|PR_ADDR, 170 .pr_input = udp6_input, 171 .pr_ctlinput = udp6_ctlinput, 172 .pr_ctloutput = ip6_ctloutput, 173 .pr_usrreqs = &udp6_usrreqs, 174 }, 175 { 176 .pr_type = SOCK_STREAM, 177 .pr_domain = &inet6domain, 178 .pr_protocol = IPPROTO_TCP, 179 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 180 .pr_input = tcp6_input, 181 .pr_ctlinput = tcp6_ctlinput, 182 .pr_ctloutput = tcp_ctloutput, 183 #ifndef INET /* don't call initialization and timeout routines twice */ 184 .pr_init = tcp_init, 185 .pr_slowtimo = tcp_slowtimo, 186 #endif 187 .pr_drain = tcp_drain, 188 .pr_usrreqs = &tcp6_usrreqs, 189 }, 190 { 191 .pr_type = SOCK_RAW, 192 .pr_domain = &inet6domain, 193 .pr_protocol = IPPROTO_RAW, 194 .pr_flags = PR_ATOMIC|PR_ADDR, 195 .pr_input = rip6_input, 196 .pr_output = rip6_output, 197 .pr_ctlinput = rip6_ctlinput, 198 .pr_ctloutput = rip6_ctloutput, 199 .pr_usrreqs = &rip6_usrreqs 200 }, 201 { 202 .pr_type = SOCK_RAW, 203 .pr_domain = &inet6domain, 204 .pr_protocol = IPPROTO_ICMPV6, 205 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 206 .pr_input = icmp6_input, 207 .pr_output = rip6_output, 208 .pr_ctlinput = rip6_ctlinput, 209 .pr_ctloutput = rip6_ctloutput, 210 .pr_init = icmp6_init, 211 .pr_fasttimo = icmp6_fasttimo, 212 .pr_usrreqs = &rip6_usrreqs 213 }, 214 { 215 .pr_type = SOCK_RAW, 216 .pr_domain = &inet6domain, 217 .pr_protocol = IPPROTO_DSTOPTS, 218 .pr_flags = PR_ATOMIC|PR_ADDR, 219 .pr_input = dest6_input, 220 .pr_usrreqs = &nousrreqs 221 }, 222 { 223 .pr_type = SOCK_RAW, 224 .pr_domain = &inet6domain, 225 .pr_protocol = IPPROTO_ROUTING, 226 .pr_flags = PR_ATOMIC|PR_ADDR, 227 .pr_input = route6_input, 228 .pr_usrreqs = &nousrreqs 229 }, 230 { 231 .pr_type = SOCK_RAW, 232 .pr_domain = &inet6domain, 233 .pr_protocol = IPPROTO_FRAGMENT, 234 .pr_flags = PR_ATOMIC|PR_ADDR, 235 .pr_input = frag6_input, 236 .pr_usrreqs = &nousrreqs 237 }, 238 #ifdef IPSEC 239 { 240 .pr_type = SOCK_RAW, 241 .pr_domain = &inet6domain, 242 .pr_protocol = IPPROTO_AH, 243 .pr_flags = PR_ATOMIC|PR_ADDR, 244 .pr_input = ah6_input, 245 .pr_usrreqs = &nousrreqs, 246 }, 247 #ifdef IPSEC_ESP 248 { 249 .pr_type = SOCK_RAW, 250 .pr_domain = &inet6domain, 251 .pr_protocol = IPPROTO_ESP, 252 .pr_flags = PR_ATOMIC|PR_ADDR, 253 .pr_input = esp6_input, 254 .pr_ctlinput = esp6_ctlinput, 255 .pr_usrreqs = &nousrreqs, 256 }, 257 #endif 258 { 259 .pr_type = SOCK_RAW, 260 .pr_domain = &inet6domain, 261 .pr_protocol = IPPROTO_IPCOMP, 262 .pr_flags = PR_ATOMIC|PR_ADDR, 263 .pr_input = ipcomp6_input, 264 .pr_usrreqs = &nousrreqs, 265 }, 266 #endif /* IPSEC */ 267 #ifdef INET 268 { 269 .pr_type = SOCK_RAW, 270 .pr_domain = &inet6domain, 271 .pr_protocol = IPPROTO_IPV4, 272 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 273 .pr_input = encap6_input, 274 .pr_output = rip6_output, 275 .pr_ctloutput = rip6_ctloutput, 276 .pr_init = encap_init, 277 .pr_usrreqs = &rip6_usrreqs 278 }, 279 #endif /* INET */ 280 { 281 .pr_type = SOCK_RAW, 282 .pr_domain = &inet6domain, 283 .pr_protocol = IPPROTO_IPV6, 284 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 285 .pr_input = encap6_input, 286 .pr_output = rip6_output, 287 .pr_ctloutput = rip6_ctloutput, 288 .pr_init = encap_init, 289 .pr_usrreqs = &rip6_usrreqs 290 }, 291 { 292 .pr_type = SOCK_RAW, 293 .pr_domain = &inet6domain, 294 .pr_protocol = IPPROTO_PIM, 295 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 296 .pr_input = pim6_input, 297 .pr_output = rip6_output, 298 .pr_ctloutput = rip6_ctloutput, 299 .pr_usrreqs = &rip6_usrreqs 300 }, 301 #ifdef DEV_CARP 302 { 303 .pr_type = SOCK_RAW, 304 .pr_domain = &inet6domain, 305 .pr_protocol = IPPROTO_CARP, 306 .pr_flags = PR_ATOMIC|PR_ADDR, 307 .pr_input = carp6_input, 308 .pr_output = rip6_output, 309 .pr_ctloutput = rip6_ctloutput, 310 .pr_usrreqs = &rip6_usrreqs 311 }, 312 #endif /* DEV_CARP */ 313 /* raw wildcard */ 314 { 315 .pr_type = SOCK_RAW, 316 .pr_domain = &inet6domain, 317 .pr_flags = PR_ATOMIC|PR_ADDR, 318 .pr_input = rip6_input, 319 .pr_output = rip6_output, 320 .pr_ctloutput = rip6_ctloutput, 321 .pr_usrreqs = &rip6_usrreqs 322 }, 323 }; 324 325 extern int in6_inithead(void **, int); 326 327 struct domain inet6domain = { 328 .dom_family = AF_INET6, 329 .dom_name = "internet6", 330 .dom_protosw = (struct protosw *)inet6sw, 331 .dom_protoswNPROTOSW = (struct protosw *) 332 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 333 .dom_rtattach = in6_inithead, 334 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 335 .dom_maxrtkey = sizeof(struct sockaddr_in6), 336 .dom_ifattach = in6_domifattach, 337 .dom_ifdetach = in6_domifdetach 338 }; 339 340 DOMAIN_SET(inet6); 341 342 /* 343 * Internet configuration info 344 */ 345 #ifndef IPV6FORWARDING 346 #ifdef GATEWAY6 347 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 348 #else 349 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 350 #endif /* GATEWAY6 */ 351 #endif /* !IPV6FORWARDING */ 352 353 #ifndef IPV6_SENDREDIRECTS 354 #define IPV6_SENDREDIRECTS 1 355 #endif 356 int nd6_onlink_ns_rfc4861 = 0; /* allow 'on-link' nd6 NS (as in RFC 4861) */ 357 358 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 359 int ip6_sendredirects = IPV6_SENDREDIRECTS; 360 int ip6_defhlim = IPV6_DEFHLIM; 361 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 362 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 363 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 364 int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */ 365 int ip6_log_interval = 5; 366 int ip6_hdrnestlimit = 15; /* How many header options will we process? */ 367 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 368 int ip6_auto_flowlabel = 1; 369 int ip6_gif_hlim = 0; 370 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 371 int ip6_rr_prune = 5; /* router renumbering prefix 372 * walk list every 5 sec. */ 373 int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ 374 int ip6_v6only = 1; 375 376 int ip6_keepfaith = 0; 377 time_t ip6_log_time = (time_t)0L; 378 #ifdef IPSTEALTH 379 int ip6stealth = 0; 380 #endif 381 int ip6_rthdr0_allowed = 0; /* Disallow use of routing header 0 */ 382 /* by default. */ 383 384 /* icmp6 */ 385 /* 386 * BSDI4 defines these variables in in_proto.c... 387 * XXX: what if we don't define INET? Should we define pmtu6_expire 388 * or so? (jinmei@kame.net 19990310) 389 */ 390 int pmtu_expire = 60*10; 391 int pmtu_probe = 60*2; 392 393 /* raw IP6 parameters */ 394 /* 395 * Nominal space allocated to a raw ip socket. 396 */ 397 #define RIPV6SNDQ 8192 398 #define RIPV6RCVQ 8192 399 400 u_long rip6_sendspace = RIPV6SNDQ; 401 u_long rip6_recvspace = RIPV6RCVQ; 402 403 /* ICMPV6 parameters */ 404 int icmp6_rediraccept = 1; /* accept and process redirects */ 405 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 406 int icmp6errppslim = 100; /* 100pps */ 407 /* control how to respond to NI queries */ 408 int icmp6_nodeinfo = (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK); 409 410 /* UDP on IP6 parameters */ 411 int udp6_sendspace = 9216; /* really max datagram size */ 412 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 413 /* 40 1K datagrams */ 414 415 /* 416 * sysctl related items. 417 */ 418 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 419 "Internet6 Family"); 420 421 /* net.inet6 */ 422 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 423 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 424 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 425 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 426 #ifdef IPSEC 427 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 428 #endif /* IPSEC */ 429 430 /* net.inet6.ip6 */ 431 static int 432 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 433 { 434 int error = 0; 435 int old; 436 437 error = SYSCTL_OUT(req, arg1, sizeof(int)); 438 if (error || !req->newptr) 439 return (error); 440 old = ip6_temp_preferred_lifetime; 441 error = SYSCTL_IN(req, arg1, sizeof(int)); 442 if (ip6_temp_preferred_lifetime < 443 ip6_desync_factor + ip6_temp_regen_advance) { 444 ip6_temp_preferred_lifetime = old; 445 return (EINVAL); 446 } 447 return (error); 448 } 449 450 static int 451 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 452 { 453 int error = 0; 454 int old; 455 456 error = SYSCTL_OUT(req, arg1, sizeof(int)); 457 if (error || !req->newptr) 458 return (error); 459 old = ip6_temp_valid_lifetime; 460 error = SYSCTL_IN(req, arg1, sizeof(int)); 461 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 462 ip6_temp_preferred_lifetime = old; 463 return (EINVAL); 464 } 465 return (error); 466 } 467 468 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 469 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 470 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 471 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 472 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 473 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 474 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 475 &ip6stat, ip6stat, ""); 476 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 477 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 478 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 479 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 480 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 481 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 482 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 483 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 484 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 485 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 486 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 487 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 488 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 489 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 490 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 491 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 492 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 493 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 494 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 495 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 496 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 497 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); 498 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 499 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); 500 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, 501 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); 502 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 503 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 504 sysctl_ip6_temppltime, "I", ""); 505 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 506 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 507 sysctl_ip6_tempvltime, "I", ""); 508 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, 509 v6only, CTLFLAG_RW, &ip6_v6only, 0, ""); 510 TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal); 511 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 512 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); 513 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 514 &rip6stat, rip6stat, ""); 515 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, 516 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, ""); 517 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, 518 use_defaultzone, CTLFLAG_RW, &ip6_use_defzone, 0,""); 519 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, 520 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, ""); 521 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, 522 mcast_pmtu, CTLFLAG_RW, &ip6_mcast_pmtu, 0, ""); 523 #ifdef IPSTEALTH 524 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 525 &ip6stealth, 0, ""); 526 #endif 527 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RTHDR0_ALLOWED, 528 rthdr0_allowed, CTLFLAG_RW, &ip6_rthdr0_allowed, 0, ""); 529 530 531 /* net.inet6.icmp6 */ 532 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 533 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 534 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 535 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 536 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 537 &icmp6stat, icmp6stat, ""); 538 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 539 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 540 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 541 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 542 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 543 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 544 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 545 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 546 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 547 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 548 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 549 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, ""); 550 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 551 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); 552 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 553 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); 554 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 555 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, ""); 556 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, 557 nd6_onlink_ns_rfc4861, CTLFLAG_RW, &nd6_onlink_ns_rfc4861, 0, 558 "Accept 'on-link' nd6 NS in compliance with RFC 4861.");
Cache object: c375f428d4b108cd670631d0db616f4e
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