1/* $FreeBSD: src/sys/netinet6/in6_proto.c,v 1.19 2002/10/16 02:25:05 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 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#include <netinet6/ip6_mroute.h> 106 107#if IPSEC 108#include <netinet6/ipsec.h> 109#if INET6 110#include <netinet6/ipsec6.h> 111#endif 112#include <netinet6/ah.h> 113#if INET6 114#include <netinet6/ah6.h> 115#endif 116#if IPSEC_ESP 117#include <netinet6/esp.h> 118#if INET6 119#include <netinet6/esp6.h> 120#endif 121#endif 122#include <netinet6/ipcomp.h> 123#if INET6 124#include <netinet6/ipcomp6.h> 125#endif 126#endif /*IPSEC*/ 127 128#include <netinet6/ip6protosw.h> 129 130#include <net/net_osdep.h> 131 132/* 133 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 134 */ 135 136extern struct domain inet6domain; 137static struct pr_usrreqs nousrreqs; 138lck_mtx_t *inet6_domain_mutex; 139 140#define PR_LISTEN 0 141#define PR_ABRTACPTDIS 0 142 143extern int in6_inithead(void **, int); 144void in6_dinit(void) __attribute__((section("__TEXT, initcode"))); 145 146static int rip6_pr_output(struct mbuf *m, struct socket *so, struct sockaddr_in6 *, struct mbuf *); 147 148struct ip6protosw inet6sw[] = { 149{ 0, &inet6domain, IPPROTO_IPV6, 0, 150 0, 0, 0, 0, 151 0, 152 ip6_init, 0, frag6_slowtimo, frag6_drain, 153 0, 154 &nousrreqs, 155 0, 0, 0, 156 { 0, 0 }, NULL, { 0 } 157}, 158{ SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK|PR_PCBLOCK, 159 udp6_input, 0, udp6_ctlinput, ip6_ctloutput, 160 0, 161 0, 0, 0, 0, 162 0, 163 &udp6_usrreqs, 164 udp_lock, udp_unlock, udp_getlock, 165 { 0, 0 }, NULL, { 0 } 166}, 167{ SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_PROTOLOCK|PR_PCBLOCK|PR_DISPOSE, 168 tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, 169 0, 170#if INET /* don't call initialization and timeout routines twice */ 171 0, 0, 0, tcp_drain, 172#else 173 tcp_init, 0, tcp_slowtimo, tcp_drain, 174#endif 175 0, 176 &tcp6_usrreqs, 177 tcp_lock, tcp_unlock, tcp_getlock, 178 { 0, 0 }, NULL, { 0 } 179}, 180{ SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 181 rip6_input, rip6_pr_output, rip6_ctlinput, rip6_ctloutput, 182 0, 183 0, 0, 0, 0, 184 0, 185 &rip6_usrreqs, 186 0, rip_unlock, 0, 187 { 0, 0 }, NULL, { 0 } 188}, 189{ SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 190 icmp6_input, rip6_pr_output, rip6_ctlinput, rip6_ctloutput, 191 0, 192 icmp6_init, icmp6_fasttimo, 0, 0, 193 0, 194 &rip6_usrreqs, 195 0, rip_unlock, 0, 196 { 0, 0 }, NULL, { 0 } 197}, 198{ SOCK_DGRAM, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 199 icmp6_input, rip6_pr_output, rip6_ctlinput, icmp6_dgram_ctloutput, 200 0, 201 icmp6_init, icmp6_fasttimo, 0, 0, 202 0, 203 &icmp6_dgram_usrreqs, 204 0, rip_unlock, 0, 205 { 0, 0 }, NULL, { 0 } 206}, 207{ SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, 208 dest6_input, 0, 0, 0, 209 0, 210 0, 0, 0, 0, 211 0, 212 &nousrreqs, 213 0, 0, 0, 214 { 0, 0 }, NULL, { 0 } 215}, 216{ SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, 217 route6_input, 0, 0, 0, 218 0, 219 0, 0, 0, 0, 220 0, 221 &nousrreqs, 222 0, 0, 0, 223 { 0, 0 }, NULL, { 0 } 224}, 225{ SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, 226 frag6_input, 0, 0, 0, 227 0, 228 0, 0, 0, 0, 229 0, 230 &nousrreqs, 231 0, 0, 0, 232 { 0, 0 }, NULL, { 0 } 233}, 234#if IPSEC 235{ SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, 236 ah6_input, 0, 0, 0, 237 0, 238 0, 0, 0, 0, 239 0, 240 &nousrreqs, 241 0, 0, 0, 242 { 0, 0 }, NULL, { 0 } 243}, 244#if IPSEC_ESP 245{ SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, 246 esp6_input, 0, 247 esp6_ctlinput, 248 0, 249 0, 250 0, 0, 0, 0, 251 0, 252 &nousrreqs, 253 0, 0, 0, 254 { 0, 0 }, NULL, { 0 } 255}, 256#endif 257{ SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, 258 ipcomp6_input, 0, 0, 0, 259 0, 260 0, 0, 0, 0, 261 0, 262 &nousrreqs, 263 0, 0, 0, 264 { 0, 0 }, NULL, { 0 } 265}, 266#endif /* IPSEC */ 267#if INET 268{ SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 269 encap6_input, rip6_pr_output, 0, rip6_ctloutput, 270 0, 271 encap_init, 0, 0, 0, 272 0, 273 &rip6_usrreqs, 274 0, rip_unlock, 0, 275 { 0, 0 }, NULL, { 0 } 276}, 277#endif /*INET*/ 278{ SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 279 encap6_input, rip6_pr_output, 0, rip6_ctloutput, 280 0, 281 encap_init, 0, 0, 0, 282 0, 283 &rip6_usrreqs, 284 0, rip_unlock, 0, 285 { 0, 0 }, NULL, { 0 } 286}, 287{ SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 288 pim6_input, rip6_pr_output, 0, rip6_ctloutput, 289 0, 290 0, 0, 0, 0, 291 0, 292 &rip6_usrreqs, 293 0, rip_unlock, 0, 294 { 0, 0 }, NULL, { 0 } 295}, 296/* raw wildcard */ 297{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 298 rip6_input, rip6_pr_output, 0, rip6_ctloutput, 299 0, 300 0, 0, 0, 0, 301 0, 302 &rip6_usrreqs, 303 0, rip_unlock, 0, 304 { 0, 0 }, NULL, { 0 } 305}, 306}; 307 308 309int in6_proto_count = (sizeof (inet6sw) / sizeof (struct ip6protosw)); 310 311struct domain inet6domain = 312 { AF_INET6, "internet6", in6_dinit, 0, 0, 313 (struct protosw *)inet6sw, 0, 314 in6_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, sizeof(struct sockaddr_in6) , 315 sizeof(struct sockaddr_in6), 0, 316 NULL, 0, {0,0} 317 }; 318 319DOMAIN_SET(inet6); 320 321/* Initialize the PF_INET6 domain, and add in the pre-defined protos */ 322void 323in6_dinit(void) 324{ 325 register int i; 326 register struct ip6protosw *pr; 327 register struct domain *dp; 328 static int inet6domain_initted = 0; 329 330 if (!inet6domain_initted) { 331 dp = &inet6domain; 332 333 for (i=0, pr = &inet6sw[0]; i<in6_proto_count; i++, pr++) 334 net_add_proto((struct protosw*)pr, dp); 335 336 inet6_domain_mutex = dp->dom_mtx; 337 inet6domain_initted = 1; 338 } 339} 340 341int rip6_pr_output(__unused struct mbuf *m, __unused struct socket *so, 342 __unused struct sockaddr_in6 *sin6, __unused struct mbuf *m1) 343{ 344 panic("rip6_pr_output\n"); 345 return 0; 346} 347 348/* 349 * Internet configuration info 350 */ 351#ifndef IPV6FORWARDING 352#if GATEWAY6 353#define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 354#else 355#define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 356#endif /* GATEWAY6 */ 357#endif /* !IPV6FORWARDING */ 358 359#ifndef IPV6_SENDREDIRECTS 360#define IPV6_SENDREDIRECTS 1 361#endif 362 363int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 364int ip6_sendredirects = IPV6_SENDREDIRECTS; 365int ip6_defhlim = IPV6_DEFHLIM; 366int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 367int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 368int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 369int ip6_maxfrags; 370int ip6_log_interval = 5; 371int ip6_hdrnestlimit = 50; /* appropriate? */ 372int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 373u_int32_t ip6_flow_seq; 374int ip6_auto_flowlabel = 1; 375int ip6_gif_hlim = 0; 376int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 377int ip6_rr_prune = 5; /* router renumbering prefix 378 * walk list every 5 sec. */ 379int ip6_v6only = 0; /* Mapped addresses on by default - Radar 3347718 */ 380 381int ip6_neighborgcthresh = 2048; /* Threshold # of NDP entries for GC */ 382int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */ 383int ip6_maxifdefrouters = 16; /* Max acceptable def routers via RA */ 384int ip6_maxdynroutes = 4096; /* Max # of routes created via redirect */ 385 386u_int32_t ip6_id = 0UL; 387int ip6_keepfaith = 0; 388time_t ip6_log_time = (time_t)0L; 389 390/* icmp6 */ 391/* 392 * BSDI4 defines these variables in in_proto.c... 393 * XXX: what if we don't define INET? Should we define pmtu6_expire 394 * or so? (jinmei@kame.net 19990310) 395 */ 396int pmtu_expire = 60*10; 397int pmtu_probe = 60*2; 398 399/* raw IP6 parameters */ 400/* 401 * Nominal space allocated to a raw ip socket. 402 */ 403#define RIPV6SNDQ 8192 404#define RIPV6RCVQ 8192 405 406u_long rip6_sendspace = RIPV6SNDQ; 407u_long rip6_recvspace = RIPV6RCVQ; 408 409/* ICMPV6 parameters */ 410int icmp6_rediraccept = 1; /* accept and process redirects */ 411int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 412int icmp6errppslim = 100; /* 100pps */ 413int icmp6_nodeinfo = 3; /* enable/disable NI response */ 414 415/* UDP on IP6 parameters */ 416int udp6_sendspace = 9216; /* really max datagram size */ 417int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 418 /* 40 1K datagrams */ 419 420/* 421 * sysctl related items. 422 */ 423SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 424 "Internet6 Family"); 425 426/* net.inet6 */ 427SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "IP6"); 428SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "ICMP6"); 429SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "UDP6"); 430SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "TCP6"); 431#if IPSEC 432SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "IPSEC6"); 433#endif /* IPSEC */ 434 435/* net.inet6.ip6 */ 436static int 437sysctl_ip6_temppltime SYSCTL_HANDLER_ARGS 438{ 439 int error = 0; 440 int old; 441 442 error = SYSCTL_OUT(req, arg1, sizeof(int)); 443 if (error || !req->newptr) 444 return (error); 445 old = ip6_temp_preferred_lifetime; 446 error = SYSCTL_IN(req, arg1, sizeof(int)); 447 if (ip6_temp_preferred_lifetime < 448 ip6_desync_factor + ip6_temp_regen_advance) { 449 ip6_temp_preferred_lifetime = old; 450 return(EINVAL); 451 } 452 return(error); 453} 454 455static int 456sysctl_ip6_tempvltime SYSCTL_HANDLER_ARGS 457{ 458 int error = 0; 459 int old; 460 461 error = SYSCTL_OUT(req, arg1, sizeof(int)); 462 if (error || !req->newptr) 463 return (error); 464 old = ip6_temp_valid_lifetime; 465 error = SYSCTL_IN(req, arg1, sizeof(int)); 466 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 467 ip6_temp_preferred_lifetime = old; 468 return(EINVAL); 469 } 470 return(error); 471} 472 473SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 474 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 475SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 476 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 477SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 478 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 479SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 480 &ip6stat, ip6stat, ""); 481SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 482 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 483SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, 484 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, ""); 485SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 486 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 487SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 488 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 489SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 490 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 491SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 492 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 493SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 494 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 495SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 496 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 497SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 498 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 499SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 500 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 501SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 502 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 503SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 504 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); 505SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 506 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); 507SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, 508 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); 509SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 510 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 511 sysctl_ip6_temppltime, "I", ""); 512SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 513 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 514 sysctl_ip6_tempvltime, "I", ""); 515SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, 516 v6only, CTLFLAG_RW, &ip6_v6only, 0, ""); 517SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 518 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); 519SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 520 &rip6stat, rip6stat, ""); 521SYSCTL_STRUCT(_net_inet6_ip6, OID_AUTO, mrt6stat, CTLFLAG_RD, 522 &mrt6stat, mrt6stat, ""); 523SYSCTL_INT(_net_inet6_ip6, IPV6CTL_NEIGHBORGCTHRESH, 524 neighborgcthresh, CTLFLAG_RW, &ip6_neighborgcthresh, 0, ""); 525SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFPREFIXES, 526 maxifprefixes, CTLFLAG_RW, &ip6_maxifprefixes, 0, ""); 527SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFDEFROUTERS, 528 maxifdefrouters, CTLFLAG_RW, &ip6_maxifdefrouters, 0, ""); 529SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXDYNROUTES, 530 maxdynroutes, CTLFLAG_RW, &ip6_maxdynroutes, 0, ""); 531 532 533/* net.inet6.icmp6 */ 534SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 535 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 536SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 537 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 538SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 539 &icmp6stat, icmp6stat, ""); 540SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 541 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 542SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 543 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 544SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 545 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 546SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 547 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 548SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 549 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 550SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 551 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, ""); 552SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 553 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); 554SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 555 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); 556SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 557 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, ""); 558 559