bsd/netinet6/in6_proto.c

   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
 136 extern  struct domain inet6domain;
 137 static struct pr_usrreqs nousrreqs;
 138 lck_mtx_t *inet6_domain_mutex;
 139
 140 #define PR_LISTEN       0
 141 #define PR_ABRTACPTDIS  0
 142
 143 extern int in6_inithead(void **, int);
 144 void in6_dinit(void) __attribute__((section("__TEXT, initcode")));
 145
 146 static int rip6_pr_output(struct mbuf *m, struct socket *so, struct sockaddr_in6 *, struct mbuf *);
 147
 148 struct 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
 309 int in6_proto_count = (sizeof (inet6sw) / sizeof (struct ip6protosw));
 310
 311 struct 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
 319 DOMAIN_SET(inet6);
 320
 321 /* Initialize the PF_INET6 domain, and add in the pre-defined protos */
 322 void
 323 in6_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
 341 int 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
 363 int     ip6_forwarding = IPV6FORWARDING;        /* act as router? */
 364 int     ip6_sendredirects = IPV6_SENDREDIRECTS;
 365 int     ip6_defhlim = IPV6_DEFHLIM;
 366 int     ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
 367 int     ip6_accept_rtadv = 0;   /* "IPV6FORWARDING ? 0 : 1" is dangerous */
 368 int     ip6_maxfragpackets;     /* initialized in frag6.c:frag6_init() */
 369 int     ip6_maxfrags;
 370 int     ip6_log_interval = 5;
 371 int     ip6_hdrnestlimit = 50;  /* appropriate? */
 372 int     ip6_dad_count = 1;      /* DupAddrDetectionTransmits */
 373 u_int32_t ip6_flow_seq;
 374 int     ip6_auto_flowlabel = 1;
 375 int     ip6_gif_hlim = 0;
 376 int     ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
 377 int     ip6_rr_prune = 5;       /* router renumbering prefix
 378                                  * walk list every 5 sec.    */
 379 int     ip6_v6only = 0;         /* Mapped addresses on by default -  Radar 3347718 */
 380
 381 u_int32_t ip6_id = 0UL;
 382 int     ip6_keepfaith = 0;
 383 time_t  ip6_log_time = (time_t)0L;
 384
 385 /* icmp6 */
 386 /*
 387  * BSDI4 defines these variables in in_proto.c...
 388  * XXX: what if we don't define INET? Should we define pmtu6_expire
 389  * or so? (jinmei@kame.net 19990310)
 390  */
 391 int pmtu_expire = 60*10;
 392 int pmtu_probe = 60*2;
 393
 394 /* raw IP6 parameters */
 395 /*
 396  * Nominal space allocated to a raw ip socket.
 397  */
 398 #define RIPV6SNDQ       8192
 399 #define RIPV6RCVQ       8192
 400
 401 u_long  rip6_sendspace = RIPV6SNDQ;
 402 u_long  rip6_recvspace = RIPV6RCVQ;
 403
 404 /* ICMPV6 parameters */
 405 int     icmp6_rediraccept = 1;          /* accept and process redirects */
 406 int     icmp6_redirtimeout = 10 * 60;   /* 10 minutes */
 407 int     icmp6errppslim = 100;           /* 100pps */
 408 int     icmp6_nodeinfo = 3;             /* enable/disable NI response */
 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|CTLFLAG_LOCKED, 0,   "IP6");
 423 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6,  CTLFLAG_RW|CTLFLAG_LOCKED, 0,   "ICMP6");
 424 SYSCTL_NODE(_net_inet6, IPPROTO_UDP,    udp6,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,   "UDP6");
 425 SYSCTL_NODE(_net_inet6, IPPROTO_TCP,    tcp6,   CTLFLAG_RW|CTLFLAG_LOCKED, 0,   "TCP6");
 426 #if IPSEC
 427 SYSCTL_NODE(_net_inet6, IPPROTO_ESP,    ipsec6, CTLFLAG_RW|CTLFLAG_LOCKED, 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_MAXFRAGS,
 479         maxfrags, CTLFLAG_RW,           &ip6_maxfrags,  0, "");
 480 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
 481         accept_rtadv, CTLFLAG_RW,       &ip6_accept_rtadv,      0, "");
 482 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
 483         keepfaith, CTLFLAG_RW,          &ip6_keepfaith, 0, "");
 484 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
 485         log_interval, CTLFLAG_RW,       &ip6_log_interval,      0, "");
 486 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
 487         hdrnestlimit, CTLFLAG_RW,       &ip6_hdrnestlimit,      0, "");
 488 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
 489         dad_count, CTLFLAG_RW,  &ip6_dad_count, 0, "");
 490 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
 491         auto_flowlabel, CTLFLAG_RW,     &ip6_auto_flowlabel,    0, "");
 492 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
 493         defmcasthlim, CTLFLAG_RW,       &ip6_defmcasthlim,      0, "");
 494 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
 495         gifhlim, CTLFLAG_RW,    &ip6_gif_hlim,                  0, "");
 496 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
 497         kame_version, CTLFLAG_RD,       __KAME_VERSION,         0, "");
 498 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
 499         use_deprecated, CTLFLAG_RW,     &ip6_use_deprecated,    0, "");
 500 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
 501         rr_prune, CTLFLAG_RW,   &ip6_rr_prune,                  0, "");
 502 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
 503         use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr,            0, "");
 504 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
 505            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
 506            sysctl_ip6_temppltime, "I", "");
 507 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
 508            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
 509            sysctl_ip6_tempvltime, "I", "");
 510 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
 511         v6only, CTLFLAG_RW,     &ip6_v6only,                    0, "");
 512 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
 513         auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal,        0, "");
 514 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
 515         &rip6stat, rip6stat, "");
 516 SYSCTL_STRUCT(_net_inet6_ip6, OID_AUTO, mrt6stat, CTLFLAG_RD,
 517         &mrt6stat, mrt6stat, "");
 518
 519
 520 /* net.inet6.icmp6 */
 521 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
 522         rediraccept, CTLFLAG_RW,        &icmp6_rediraccept,     0, "");
 523 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
 524         redirtimeout, CTLFLAG_RW,       &icmp6_redirtimeout,    0, "");
 525 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
 526         &icmp6stat, icmp6stat, "");
 527 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
 528         nd6_prune, CTLFLAG_RW,          &nd6_prune,     0, "");
 529 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
 530         nd6_delay, CTLFLAG_RW,          &nd6_delay,     0, "");
 531 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
 532         nd6_umaxtries, CTLFLAG_RW,      &nd6_umaxtries, 0, "");
 533 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
 534         nd6_mmaxtries, CTLFLAG_RW,      &nd6_mmaxtries, 0, "");
 535 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
 536         nd6_useloopback, CTLFLAG_RW,    &nd6_useloopback, 0, "");
 537 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
 538         nodeinfo, CTLFLAG_RW,   &icmp6_nodeinfo,        0, "");
 539 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
 540         errppslimit, CTLFLAG_RW,        &icmp6errppslim,        0, "");
 541 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
 542         nd6_maxnudhint, CTLFLAG_RW,     &nd6_maxnudhint, 0, "");
 543 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
 544         nd6_debug, CTLFLAG_RW,  &nd6_debug,             0, "");
 545