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 70 #include <sys/param.h> 71 #include <sys/socket.h> 72 #include <sys/socketvar.h> 73 #include <sys/protosw.h> 74 #include <sys/kernel.h> 75 #include <sys/domain.h> 76 #include <sys/mbuf.h> 77 #include <sys/systm.h> 78 #include <sys/sysctl.h> 79 80 #include <net/if.h> 81 #include <net/radix.h> 82 #include <net/route.h> 83 84 #include <netinet/in.h> 85 #include <netinet/in_systm.h> 86 #include <netinet/in_var.h> 87 #include <netinet/ip_encap.h> 88 #include <netinet/ip.h> 89 #include <netinet/ip_var.h> 90 #include <netinet/ip6.h> 91 #include <netinet6/ip6_var.h> 92 #include <netinet/icmp6.h> 93 94 #include <netinet/tcp.h> 95 #include <netinet/tcp_timer.h> 96 #include <netinet/tcp_var.h> 97 #include <netinet/udp.h> 98 #include <netinet/udp_var.h> 99 #include <netinet6/tcp6_var.h> 100 #include <netinet6/raw_ip6.h> 101 #include <netinet6/udp6_var.h> 102 #include <netinet6/pim6_var.h> 103 #include <netinet6/nd6.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 DEV_CARP 127 #include <netinet/ip_carp.h> 128 #endif 129 130 #ifdef FAST_IPSEC 131 #include <netipsec/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 /* 144 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 145 */ 146 147 extern struct domain inet6domain; 148 static struct pr_usrreqs nousrreqs; 149 150 #define PR_LISTEN 0 151 #define PR_ABRTACPTDIS 0 152 153 struct ip6protosw inet6sw[] = { 154 { 155 .pr_type = 0, 156 .pr_domain = &inet6domain, 157 .pr_protocol = IPPROTO_IPV6, 158 .pr_init = ip6_init, 159 .pr_slowtimo = frag6_slowtimo, 160 .pr_drain = frag6_drain, 161 .pr_usrreqs = &nousrreqs, 162 }, 163 { 164 .pr_type = SOCK_DGRAM, 165 .pr_domain = &inet6domain, 166 .pr_protocol = IPPROTO_UDP, 167 .pr_flags = PR_ATOMIC|PR_ADDR, 168 .pr_input = udp6_input, 169 .pr_ctlinput = udp6_ctlinput, 170 .pr_ctloutput = ip6_ctloutput, 171 .pr_usrreqs = &udp6_usrreqs, 172 }, 173 { 174 .pr_type = SOCK_STREAM, 175 .pr_domain = &inet6domain, 176 .pr_protocol = IPPROTO_TCP, 177 .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, 178 .pr_input = tcp6_input, 179 .pr_ctlinput = tcp6_ctlinput, 180 .pr_ctloutput = tcp_ctloutput, 181 #ifndef INET /* don't call initialization and timeout routines twice */ 182 .pr_init = tcp_init, 183 .pr_fasttimo = tcp_fasttimo, 184 .pr_slowtimo = tcp_slowtimo, 185 #endif 186 .pr_drain = tcp_drain, 187 .pr_usrreqs = &tcp6_usrreqs, 188 }, 189 { 190 .pr_type = SOCK_RAW, 191 .pr_domain = &inet6domain, 192 .pr_protocol = IPPROTO_RAW, 193 .pr_flags = PR_ATOMIC|PR_ADDR, 194 .pr_input = rip6_input, 195 .pr_output = rip6_output, 196 .pr_ctlinput = rip6_ctlinput, 197 .pr_ctloutput = rip6_ctloutput, 198 .pr_usrreqs = &rip6_usrreqs 199 }, 200 { 201 .pr_type = SOCK_RAW, 202 .pr_domain = &inet6domain, 203 .pr_protocol = IPPROTO_ICMPV6, 204 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 205 .pr_input = icmp6_input, 206 .pr_output = rip6_output, 207 .pr_ctlinput = rip6_ctlinput, 208 .pr_ctloutput = rip6_ctloutput, 209 .pr_init = icmp6_init, 210 .pr_fasttimo = icmp6_fasttimo, 211 .pr_usrreqs = &rip6_usrreqs 212 }, 213 { 214 .pr_type = SOCK_RAW, 215 .pr_domain = &inet6domain, 216 .pr_protocol = IPPROTO_DSTOPTS, 217 .pr_flags = PR_ATOMIC|PR_ADDR, 218 .pr_input = dest6_input, 219 .pr_usrreqs = &nousrreqs 220 }, 221 { 222 .pr_type = SOCK_RAW, 223 .pr_domain = &inet6domain, 224 .pr_protocol = IPPROTO_ROUTING, 225 .pr_flags = PR_ATOMIC|PR_ADDR, 226 .pr_input = route6_input, 227 .pr_usrreqs = &nousrreqs 228 }, 229 { 230 .pr_type = SOCK_RAW, 231 .pr_domain = &inet6domain, 232 .pr_protocol = IPPROTO_FRAGMENT, 233 .pr_flags = PR_ATOMIC|PR_ADDR, 234 .pr_input = frag6_input, 235 .pr_usrreqs = &nousrreqs 236 }, 237 #ifdef IPSEC 238 { 239 .pr_type = SOCK_RAW, 240 .pr_domain = &inet6domain, 241 .pr_protocol = IPPROTO_AH, 242 .pr_flags = PR_ATOMIC|PR_ADDR, 243 .pr_input = ah6_input, 244 .pr_usrreqs = &nousrreqs, 245 }, 246 #ifdef IPSEC_ESP 247 { 248 .pr_type = SOCK_RAW, 249 .pr_domain = &inet6domain, 250 .pr_protocol = IPPROTO_ESP, 251 .pr_flags = PR_ATOMIC|PR_ADDR, 252 .pr_input = esp6_input, 253 .pr_ctlinput = esp6_ctlinput, 254 .pr_usrreqs = &nousrreqs, 255 }, 256 #endif 257 { 258 .pr_type = SOCK_RAW, 259 .pr_domain = &inet6domain, 260 .pr_protocol = IPPROTO_IPCOMP, 261 .pr_flags = PR_ATOMIC|PR_ADDR, 262 .pr_input = ipcomp6_input, 263 .pr_usrreqs = &nousrreqs, 264 }, 265 #endif /* IPSEC */ 266 #ifdef INET 267 { 268 .pr_type = SOCK_RAW, 269 .pr_domain = &inet6domain, 270 .pr_protocol = IPPROTO_IPV4, 271 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 272 .pr_input = encap6_input, 273 .pr_output = rip6_output, 274 .pr_ctloutput = rip6_ctloutput, 275 .pr_init = encap_init, 276 .pr_usrreqs = &rip6_usrreqs 277 }, 278 #endif /* INET */ 279 { 280 .pr_type = SOCK_RAW, 281 .pr_domain = &inet6domain, 282 .pr_protocol = IPPROTO_IPV6, 283 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 284 .pr_input = encap6_input, 285 .pr_output = rip6_output, 286 .pr_ctloutput = rip6_ctloutput, 287 .pr_init = encap_init, 288 .pr_usrreqs = &rip6_usrreqs 289 }, 290 { 291 .pr_type = SOCK_RAW, 292 .pr_domain = &inet6domain, 293 .pr_protocol = IPPROTO_PIM, 294 .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR, 295 .pr_input = pim6_input, 296 .pr_output = rip6_output, 297 .pr_ctloutput = rip6_ctloutput, 298 .pr_usrreqs = &rip6_usrreqs 299 }, 300 #ifdef DEV_CARP 301 { 302 .pr_type = SOCK_RAW, 303 .pr_domain = &inet6domain, 304 .pr_protocol = IPPROTO_CARP, 305 .pr_flags = PR_ATOMIC|PR_ADDR, 306 .pr_input = carp6_input, 307 .pr_output = rip6_output, 308 .pr_ctloutput = rip6_ctloutput, 309 .pr_usrreqs = &rip6_usrreqs 310 }, 311 #endif /* DEV_CARP */ 312 /* raw wildcard */ 313 { 314 .pr_type = SOCK_RAW, 315 .pr_domain = &inet6domain, 316 .pr_flags = PR_ATOMIC|PR_ADDR, 317 .pr_input = rip6_input, 318 .pr_output = rip6_output, 319 .pr_ctloutput = rip6_ctloutput, 320 .pr_usrreqs = &rip6_usrreqs 321 }, 322 }; 323 324 extern int in6_inithead __P((void **, int)); 325 326 struct domain inet6domain = { 327 .dom_family = AF_INET6, 328 .dom_name = "internet6", 329 .dom_protosw = (struct protosw *)inet6sw, 330 .dom_protoswNPROTOSW = (struct protosw *) 331 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 332 .dom_rtattach = in6_inithead, 333 .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, 334 .dom_maxrtkey = sizeof(struct sockaddr_in6), 335 .dom_ifattach = in6_domifattach, 336 .dom_ifdetach = in6_domifdetach 337 }; 338 339 DOMAIN_SET(inet6); 340 341 /* 342 * Internet configuration info 343 */ 344 #ifndef IPV6FORWARDING 345 #ifdef GATEWAY6 346 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 347 #else 348 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 349 #endif /* GATEWAY6 */ 350 #endif /* !IPV6FORWARDING */ 351 352 #ifndef IPV6_SENDREDIRECTS 353 #define IPV6_SENDREDIRECTS 1 354 #endif 355 356 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 357 int ip6_sendredirects = IPV6_SENDREDIRECTS; 358 int ip6_defhlim = IPV6_DEFHLIM; 359 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 360 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 361 int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ 362 int ip6_maxfrags; /* initialized in frag6.c:frag6_init() */ 363 int ip6_log_interval = 5; 364 int ip6_hdrnestlimit = 50; /* appropriate? */ 365 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 366 int ip6_auto_flowlabel = 1; 367 int ip6_gif_hlim = 0; 368 int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ 369 int ip6_rr_prune = 5; /* router renumbering prefix 370 * walk list every 5 sec. */ 371 int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ 372 int ip6_v6only = 1; 373 374 int ip6_keepfaith = 0; 375 time_t ip6_log_time = (time_t)0L; 376 #ifdef IPSTEALTH 377 int ip6stealth = 0; 378 #endif 379 380 /* icmp6 */ 381 /* 382 * BSDI4 defines these variables in in_proto.c... 383 * XXX: what if we don't define INET? Should we define pmtu6_expire 384 * or so? (jinmei@kame.net 19990310) 385 */ 386 int pmtu_expire = 60*10; 387 int pmtu_probe = 60*2; 388 389 /* raw IP6 parameters */ 390 /* 391 * Nominal space allocated to a raw ip socket. 392 */ 393 #define RIPV6SNDQ 8192 394 #define RIPV6RCVQ 8192 395 396 u_long rip6_sendspace = RIPV6SNDQ; 397 u_long rip6_recvspace = RIPV6RCVQ; 398 399 /* ICMPV6 parameters */ 400 int icmp6_rediraccept = 1; /* accept and process redirects */ 401 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 402 int icmp6errppslim = 100; /* 100pps */ 403 int icmp6_nodeinfo = 3; /* enable/disable NI response */ 404 405 /* UDP on IP6 parameters */ 406 int udp6_sendspace = 9216; /* really max datagram size */ 407 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 408 /* 40 1K datagrams */ 409 410 /* 411 * sysctl related items. 412 */ 413 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 414 "Internet6 Family"); 415 416 /* net.inet6 */ 417 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 418 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 419 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 420 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 421 #ifdef IPSEC 422 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 423 #endif /* IPSEC */ 424 425 /* net.inet6.ip6 */ 426 static int 427 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS) 428 { 429 int error = 0; 430 int old; 431 432 error = SYSCTL_OUT(req, arg1, sizeof(int)); 433 if (error || !req->newptr) 434 return (error); 435 old = ip6_temp_preferred_lifetime; 436 error = SYSCTL_IN(req, arg1, sizeof(int)); 437 if (ip6_temp_preferred_lifetime < 438 ip6_desync_factor + ip6_temp_regen_advance) { 439 ip6_temp_preferred_lifetime = old; 440 return (EINVAL); 441 } 442 return (error); 443 } 444 445 static int 446 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS) 447 { 448 int error = 0; 449 int old; 450 451 error = SYSCTL_OUT(req, arg1, sizeof(int)); 452 if (error || !req->newptr) 453 return (error); 454 old = ip6_temp_valid_lifetime; 455 error = SYSCTL_IN(req, arg1, sizeof(int)); 456 if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { 457 ip6_temp_preferred_lifetime = old; 458 return (EINVAL); 459 } 460 return (error); 461 } 462 463 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 464 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 465 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 466 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 467 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 468 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 469 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, 470 &ip6stat, ip6stat, ""); 471 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 472 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 473 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 474 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 475 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 476 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 477 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 478 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 479 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 480 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 481 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 482 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 483 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 484 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 485 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 486 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 487 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 488 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 489 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, 490 kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); 491 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, 492 use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); 493 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, 494 rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); 495 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, 496 use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); 497 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, 498 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, 499 sysctl_ip6_temppltime, "I", ""); 500 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, 501 CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0, 502 sysctl_ip6_tempvltime, "I", ""); 503 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, 504 v6only, CTLFLAG_RW, &ip6_v6only, 0, ""); 505 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, 506 auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); 507 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, 508 &rip6stat, rip6stat, ""); 509 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, 510 prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr, 0, ""); 511 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, 512 use_defaultzone, CTLFLAG_RW, &ip6_use_defzone, 0,""); 513 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, 514 maxfrags, CTLFLAG_RW, &ip6_maxfrags, 0, ""); 515 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, 516 mcast_pmtu, CTLFLAG_RW, &ip6_mcast_pmtu, 0, ""); 517 #ifdef IPSTEALTH 518 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW, 519 &ip6stealth, 0, ""); 520 #endif 521 522 /* net.inet6.icmp6 */ 523 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 524 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 525 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 526 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 527 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 528 &icmp6stat, icmp6stat, ""); 529 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 530 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 531 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 532 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 533 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 534 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 535 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 536 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 537 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 538 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 539 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, 540 nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, ""); 541 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, 542 errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); 543 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, 544 nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); 545 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, 546 nd6_debug, CTLFLAG_RW, &nd6_debug, 0, ""); 547