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