The Design and Implementation of the FreeBSD Operating System, Second Edition
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 #include "opt_sctp.h"
   72 
   73 #include <sys/param.h>
   74 #include <sys/socket.h>
   75 #include <sys/socketvar.h>
   76 #include <sys/protosw.h>
   77 #include <sys/kernel.h>
   78 #include <sys/domain.h>
   79 #include <sys/mbuf.h>
   80 #include <sys/systm.h>
   81 #include <sys/sysctl.h>
   82 
   83 #include <net/if.h>
   84 #include <net/radix.h>
   85 #include <net/route.h>
   86 
   87 #include <netinet/in.h>
   88 #include <netinet/in_systm.h>
   89 #include <netinet/in_var.h>
   90 #include <netinet/ip_encap.h>
   91 #include <netinet/ip.h>
   92 #include <netinet/ip_var.h>
   93 #include <netinet/ip6.h>
   94 #include <netinet6/ip6_var.h>
   95 #include <netinet/icmp6.h>
   96 
   97 #include <netinet/tcp.h>
   98 #include <netinet/tcp_timer.h>
   99 #include <netinet/tcp_var.h>
  100 #include <netinet/udp.h>
  101 #include <netinet/udp_var.h>
  102 #include <netinet6/tcp6_var.h>
  103 #include <netinet6/raw_ip6.h>
  104 #include <netinet6/udp6_var.h>
  105 #include <netinet6/pim6_var.h>
  106 #include <netinet6/nd6.h>
  107 
  108 #ifdef DEV_CARP
  109 #include <netinet/ip_carp.h>
  110 #endif
  111 
  112 #ifdef SCTP
  113 #include <netinet/in_pcb.h>
  114 #include <netinet/sctp_pcb.h>
  115 #include <netinet/sctp.h>
  116 #include <netinet/sctp_var.h>
  117 #include <netinet6/sctp6_var.h>
  118 #endif /* SCTP */
  119 
  120 #ifdef IPSEC
  121 #include <netipsec/ipsec.h>
  122 #include <netipsec/ipsec6.h>
  123 #endif /* IPSEC */
  124 
  125 #include <netinet6/ip6protosw.h>
  126 
  127 /*
  128  * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
  129  */
  130 
  131 extern  struct domain inet6domain;
  132 static  struct pr_usrreqs nousrreqs;
  133 
  134 #define PR_LISTEN       0
  135 #define PR_ABRTACPTDIS  0
  136 
  137 struct ip6protosw inet6sw[] = {
  138 {
  139         .pr_type =              0,
  140         .pr_domain =            &inet6domain,
  141         .pr_protocol =          IPPROTO_IPV6,
  142         .pr_init =              ip6_init,
  143         .pr_slowtimo =          frag6_slowtimo,
  144         .pr_drain =             frag6_drain,
  145         .pr_usrreqs =           &nousrreqs,
  146 },
  147 {
  148         .pr_type =              SOCK_DGRAM,
  149         .pr_domain =            &inet6domain,
  150         .pr_protocol =          IPPROTO_UDP,
  151         .pr_flags =             PR_ATOMIC|PR_ADDR,
  152         .pr_input =             udp6_input,
  153         .pr_ctlinput =          udp6_ctlinput,
  154         .pr_ctloutput =         ip6_ctloutput,
  155         .pr_usrreqs =           &udp6_usrreqs,
  156 },
  157 {
  158         .pr_type =              SOCK_STREAM,
  159         .pr_domain =            &inet6domain,
  160         .pr_protocol =          IPPROTO_TCP,
  161         .pr_flags =             PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
  162         .pr_input =             tcp6_input,
  163         .pr_ctlinput =          tcp6_ctlinput,
  164         .pr_ctloutput =         tcp_ctloutput,
  165 #ifndef INET    /* don't call initialization and timeout routines twice */
  166         .pr_init =              tcp_init,
  167         .pr_fasttimo =          tcp_fasttimo,
  168         .pr_slowtimo =          tcp_slowtimo,
  169 #endif
  170         .pr_drain =             tcp_drain,
  171         .pr_usrreqs =           &tcp6_usrreqs,
  172 },
  173 #ifdef SCTP
  174 {
  175         .pr_type =      SOCK_DGRAM,
  176         .pr_domain =    &inet6domain,
  177         .pr_protocol =  IPPROTO_SCTP,
  178         .pr_flags =     PR_WANTRCVD,
  179         .pr_input =     sctp6_input,
  180         .pr_ctlinput =  sctp6_ctlinput,
  181         .pr_ctloutput = sctp_ctloutput,
  182         .pr_drain =     sctp_drain,
  183         .pr_usrreqs =   &sctp6_usrreqs
  184 },
  185 {
  186         .pr_type =      SOCK_SEQPACKET,
  187         .pr_domain =    &inet6domain,
  188         .pr_protocol =  IPPROTO_SCTP,
  189         .pr_flags =     PR_WANTRCVD,
  190         .pr_input =     sctp6_input,
  191         .pr_ctlinput =  sctp6_ctlinput,
  192         .pr_ctloutput = sctp_ctloutput,
  193         .pr_drain =     sctp_drain,
  194         .pr_usrreqs =   &sctp6_usrreqs
  195 },
  196 
  197 {
  198         .pr_type =      SOCK_STREAM,
  199         .pr_domain =    &inet6domain,
  200         .pr_protocol =  IPPROTO_SCTP,
  201         .pr_flags =     PR_WANTRCVD,
  202         .pr_input =     sctp6_input,
  203         .pr_ctlinput =  sctp6_ctlinput,
  204         .pr_ctloutput = sctp_ctloutput,
  205         .pr_drain =     sctp_drain,
  206         .pr_usrreqs =   &sctp6_usrreqs
  207 },
  208 #endif /* SCTP */
  209 {
  210         .pr_type =              SOCK_RAW,
  211         .pr_domain =            &inet6domain,
  212         .pr_protocol =          IPPROTO_RAW,
  213         .pr_flags =             PR_ATOMIC|PR_ADDR,
  214         .pr_input =             rip6_input,
  215         .pr_output =            rip6_output,
  216         .pr_ctlinput =          rip6_ctlinput,
  217         .pr_ctloutput =         rip6_ctloutput,
  218         .pr_usrreqs =           &rip6_usrreqs
  219 },
  220 {
  221         .pr_type =              SOCK_RAW,
  222         .pr_domain =            &inet6domain,
  223         .pr_protocol =          IPPROTO_ICMPV6,
  224         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  225         .pr_input =             icmp6_input,
  226         .pr_output =            rip6_output,
  227         .pr_ctlinput =          rip6_ctlinput,
  228         .pr_ctloutput =         rip6_ctloutput,
  229         .pr_init =              icmp6_init,
  230         .pr_fasttimo =          icmp6_fasttimo,
  231         .pr_usrreqs =           &rip6_usrreqs
  232 },
  233 {
  234         .pr_type =              SOCK_RAW,
  235         .pr_domain =            &inet6domain,
  236         .pr_protocol =          IPPROTO_DSTOPTS,
  237         .pr_flags =             PR_ATOMIC|PR_ADDR,
  238         .pr_input =             dest6_input,
  239         .pr_usrreqs =           &nousrreqs
  240 },
  241 {
  242         .pr_type =              SOCK_RAW,
  243         .pr_domain =            &inet6domain,
  244         .pr_protocol =          IPPROTO_ROUTING,
  245         .pr_flags =             PR_ATOMIC|PR_ADDR,
  246         .pr_input =             route6_input,
  247         .pr_usrreqs =           &nousrreqs
  248 },
  249 {
  250         .pr_type =              SOCK_RAW,
  251         .pr_domain =            &inet6domain,
  252         .pr_protocol =          IPPROTO_FRAGMENT,
  253         .pr_flags =             PR_ATOMIC|PR_ADDR,
  254         .pr_input =             frag6_input,
  255         .pr_usrreqs =           &nousrreqs
  256 },
  257 #ifdef IPSEC
  258 {
  259         .pr_type =              SOCK_RAW,
  260         .pr_domain =            &inet6domain,
  261         .pr_protocol =          IPPROTO_AH,
  262         .pr_flags =             PR_ATOMIC|PR_ADDR,
  263         .pr_input =             ipsec6_common_input,
  264         .pr_usrreqs =           &nousrreqs,
  265 },
  266 {
  267         .pr_type =              SOCK_RAW,
  268         .pr_domain =            &inet6domain,
  269         .pr_protocol =          IPPROTO_ESP,
  270         .pr_flags =             PR_ATOMIC|PR_ADDR,
  271         .pr_input =             ipsec6_common_input,
  272         .pr_ctlinput =          esp6_ctlinput,
  273         .pr_usrreqs =           &nousrreqs,
  274 },
  275 {
  276         .pr_type =              SOCK_RAW,
  277         .pr_domain =            &inet6domain,
  278         .pr_protocol =          IPPROTO_IPCOMP,
  279         .pr_flags =             PR_ATOMIC|PR_ADDR,
  280         .pr_input =             ipsec6_common_input,
  281         .pr_usrreqs =           &nousrreqs,
  282 },
  283 #endif /* IPSEC */
  284 #ifdef INET
  285 {
  286         .pr_type =              SOCK_RAW,
  287         .pr_domain =            &inet6domain,
  288         .pr_protocol =          IPPROTO_IPV4,
  289         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  290         .pr_input =             encap6_input,
  291         .pr_output =            rip6_output,
  292         .pr_ctloutput =         rip6_ctloutput,
  293         .pr_init =              encap_init,
  294         .pr_usrreqs =           &rip6_usrreqs
  295 },
  296 #endif /* INET */
  297 {
  298         .pr_type =              SOCK_RAW,
  299         .pr_domain =            &inet6domain,
  300         .pr_protocol =          IPPROTO_IPV6,
  301         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  302         .pr_input =             encap6_input,
  303         .pr_output =            rip6_output,
  304         .pr_ctloutput =         rip6_ctloutput,
  305         .pr_init =              encap_init,
  306         .pr_usrreqs =           &rip6_usrreqs
  307 },
  308 {
  309         .pr_type =              SOCK_RAW,
  310         .pr_domain =            &inet6domain,
  311         .pr_protocol =          IPPROTO_PIM,
  312         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  313         .pr_input =             encap6_input,
  314         .pr_output =            rip6_output,
  315         .pr_ctloutput =         rip6_ctloutput,
  316         .pr_usrreqs =           &rip6_usrreqs
  317 },
  318 #ifdef DEV_CARP
  319 {
  320         .pr_type =              SOCK_RAW,
  321         .pr_domain =            &inet6domain,
  322         .pr_protocol =          IPPROTO_CARP,
  323         .pr_flags =             PR_ATOMIC|PR_ADDR,
  324         .pr_input =             carp6_input,
  325         .pr_output =            rip6_output,
  326         .pr_ctloutput =         rip6_ctloutput,
  327         .pr_usrreqs =           &rip6_usrreqs
  328 },
  329 #endif /* DEV_CARP */
  330 /* raw wildcard */
  331 {
  332         .pr_type =              SOCK_RAW,
  333         .pr_domain =            &inet6domain,
  334         .pr_flags =             PR_ATOMIC|PR_ADDR,
  335         .pr_input =             rip6_input,
  336         .pr_output =            rip6_output,
  337         .pr_ctloutput =         rip6_ctloutput,
  338         .pr_usrreqs =           &rip6_usrreqs
  339 },
  340 };
  341 
  342 extern int in6_inithead(void **, int);
  343 
  344 struct domain inet6domain = {
  345         .dom_family =           AF_INET6,
  346         .dom_name =             "internet6",
  347         .dom_protosw =          (struct protosw *)inet6sw,
  348         .dom_protoswNPROTOSW =  (struct protosw *)
  349                                 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
  350         .dom_rtattach =         in6_inithead,
  351         .dom_rtoffset =         offsetof(struct sockaddr_in6, sin6_addr) << 3,
  352         .dom_maxrtkey =         sizeof(struct sockaddr_in6),
  353         .dom_ifattach =         in6_domifattach,
  354         .dom_ifdetach =         in6_domifdetach
  355 };
  356 
  357 DOMAIN_SET(inet6);
  358 
  359 /*
  360  * Internet configuration info
  361  */
  362 #ifndef IPV6FORWARDING
  363 #ifdef GATEWAY6
  364 #define IPV6FORWARDING  1       /* forward IP6 packets not for us */
  365 #else
  366 #define IPV6FORWARDING  0       /* don't forward IP6 packets not for us */
  367 #endif /* GATEWAY6 */
  368 #endif /* !IPV6FORWARDING */
  369 
  370 #ifndef IPV6_SENDREDIRECTS
  371 #define IPV6_SENDREDIRECTS      1
  372 #endif
  373 
  374 int     ip6_forwarding = IPV6FORWARDING;        /* act as router? */
  375 int     ip6_sendredirects = IPV6_SENDREDIRECTS;
  376 int     ip6_defhlim = IPV6_DEFHLIM;
  377 int     ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
  378 int     ip6_accept_rtadv = 0;   /* "IPV6FORWARDING ? 0 : 1" is dangerous */
  379 int     ip6_maxfragpackets;     /* initialized in frag6.c:frag6_init() */
  380 int     ip6_maxfrags;   /* initialized in frag6.c:frag6_init() */
  381 int     ip6_log_interval = 5;
  382 int     ip6_hdrnestlimit = 15;  /* How many header options will we process? */
  383 int     ip6_dad_count = 1;      /* DupAddrDetectionTransmits */
  384 int     ip6_auto_flowlabel = 1;
  385 int     ip6_gif_hlim = 0;
  386 int     ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
  387 int     ip6_rr_prune = 5;       /* router renumbering prefix
  388                                  * walk list every 5 sec. */
  389 int     ip6_mcast_pmtu = 0;     /* enable pMTU discovery for multicast? */
  390 int     ip6_v6only = 1;
  391 
  392 int     ip6_keepfaith = 0;
  393 time_t  ip6_log_time = (time_t)0L;
  394 #ifdef IPSTEALTH
  395 int     ip6stealth = 0;
  396 #endif
  397 int     nd6_onlink_ns_rfc4861 = 0; /* allow 'on-link' nd6 NS (as in RFC 4861) */
  398 
  399 /* icmp6 */
  400 /*
  401  * BSDI4 defines these variables in in_proto.c...
  402  * XXX: what if we don't define INET? Should we define pmtu6_expire
  403  * or so? (jinmei@kame.net 19990310)
  404  */
  405 int pmtu_expire = 60*10;
  406 int pmtu_probe = 60*2;
  407 
  408 /* raw IP6 parameters */
  409 /*
  410  * Nominal space allocated to a raw ip socket.
  411  */
  412 #define RIPV6SNDQ       8192
  413 #define RIPV6RCVQ       8192
  414 
  415 u_long  rip6_sendspace = RIPV6SNDQ;
  416 u_long  rip6_recvspace = RIPV6RCVQ;
  417 
  418 /* ICMPV6 parameters */
  419 int     icmp6_rediraccept = 1;          /* accept and process redirects */
  420 int     icmp6_redirtimeout = 10 * 60;   /* 10 minutes */
  421 int     icmp6errppslim = 100;           /* 100pps */
  422 /* control how to respond to NI queries */
  423 int     icmp6_nodeinfo = (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK);
  424 
  425 /* UDP on IP6 parameters */
  426 int     udp6_sendspace = 9216;          /* really max datagram size */
  427 int     udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
  428                                         /* 40 1K datagrams */
  429 
  430 /*
  431  * sysctl related items.
  432  */
  433 SYSCTL_NODE(_net,       PF_INET6,       inet6,  CTLFLAG_RW,     0,
  434         "Internet6 Family");
  435 
  436 /* net.inet6 */
  437 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6,   ip6,    CTLFLAG_RW, 0,  "IP6");
  438 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6,  CTLFLAG_RW, 0,  "ICMP6");
  439 SYSCTL_NODE(_net_inet6, IPPROTO_UDP,    udp6,   CTLFLAG_RW, 0,  "UDP6");
  440 SYSCTL_NODE(_net_inet6, IPPROTO_TCP,    tcp6,   CTLFLAG_RW, 0,  "TCP6");
  441 #ifdef SCTP
  442 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP,   sctp6,  CTLFLAG_RW, 0,  "SCTP6");
  443 #endif
  444 #ifdef IPSEC
  445 SYSCTL_NODE(_net_inet6, IPPROTO_ESP,    ipsec6, CTLFLAG_RW, 0,  "IPSEC6");
  446 #endif /* IPSEC */
  447 
  448 /* net.inet6.ip6 */
  449 static int
  450 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
  451 {
  452         int error = 0;
  453         int old;
  454 
  455         error = SYSCTL_OUT(req, arg1, sizeof(int));
  456         if (error || !req->newptr)
  457                 return (error);
  458         old = ip6_temp_preferred_lifetime;
  459         error = SYSCTL_IN(req, arg1, sizeof(int));
  460         if (ip6_temp_preferred_lifetime <
  461             ip6_desync_factor + ip6_temp_regen_advance) {
  462                 ip6_temp_preferred_lifetime = old;
  463                 return (EINVAL);
  464         }
  465         return (error);
  466 }
  467 
  468 static int
  469 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
  470 {
  471         int error = 0;
  472         int old;
  473 
  474         error = SYSCTL_OUT(req, arg1, sizeof(int));
  475         if (error || !req->newptr)
  476                 return (error);
  477         old = ip6_temp_valid_lifetime;
  478         error = SYSCTL_IN(req, arg1, sizeof(int));
  479         if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) {
  480                 ip6_temp_preferred_lifetime = old;
  481                 return (EINVAL);
  482         }
  483         return (error);
  484 }
  485 
  486 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING,
  487         forwarding, CTLFLAG_RW,         &ip6_forwarding,        0, "");
  488 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
  489         redirect, CTLFLAG_RW,           &ip6_sendredirects,     0, "");
  490 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
  491         hlim, CTLFLAG_RW,               &ip6_defhlim,   0, "");
  492 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
  493         &ip6stat, ip6stat, "");
  494 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS,
  495         maxfragpackets, CTLFLAG_RW,     &ip6_maxfragpackets,    0, "");
  496 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
  497         accept_rtadv, CTLFLAG_RW,       &ip6_accept_rtadv,      0, "");
  498 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
  499         keepfaith, CTLFLAG_RW,          &ip6_keepfaith, 0, "");
  500 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
  501         log_interval, CTLFLAG_RW,       &ip6_log_interval,      0, "");
  502 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
  503         hdrnestlimit, CTLFLAG_RW,       &ip6_hdrnestlimit,      0, "");
  504 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
  505         dad_count, CTLFLAG_RW,  &ip6_dad_count, 0, "");
  506 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
  507         auto_flowlabel, CTLFLAG_RW,     &ip6_auto_flowlabel,    0, "");
  508 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
  509         defmcasthlim, CTLFLAG_RW,       &ip6_defmcasthlim,      0, "");
  510 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
  511         gifhlim, CTLFLAG_RW,    &ip6_gif_hlim,                  0, "");
  512 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
  513         kame_version, CTLFLAG_RD,       __KAME_VERSION,         0, "");
  514 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
  515         use_deprecated, CTLFLAG_RW,     &ip6_use_deprecated,    0, "");
  516 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
  517         rr_prune, CTLFLAG_RW,   &ip6_rr_prune,                  0, "");
  518 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
  519         use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr,            0, "");
  520 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
  521            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
  522            sysctl_ip6_temppltime, "I", "");
  523 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
  524            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
  525            sysctl_ip6_tempvltime, "I", "");
  526 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
  527         v6only, CTLFLAG_RW,     &ip6_v6only,                    0, "");
  528 TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal);
  529 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
  530         auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal,        0, "");
  531 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
  532         &rip6stat, rip6stat, "");
  533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
  534         prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr,      0, "");
  535 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE,
  536         use_defaultzone, CTLFLAG_RW, &ip6_use_defzone,          0,"");
  537 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS,
  538         maxfrags, CTLFLAG_RW,           &ip6_maxfrags,  0, "");
  539 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU,
  540         mcast_pmtu, CTLFLAG_RW,         &ip6_mcast_pmtu,        0, "");
  541 #ifdef IPSTEALTH
  542 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
  543         &ip6stealth, 0, "");
  544 #endif
  545 
  546 /* net.inet6.icmp6 */
  547 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
  548         rediraccept, CTLFLAG_RW,        &icmp6_rediraccept,     0, "");
  549 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
  550         redirtimeout, CTLFLAG_RW,       &icmp6_redirtimeout,    0, "");
  551 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
  552         &icmp6stat, icmp6stat, "");
  553 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
  554         nd6_prune, CTLFLAG_RW,          &nd6_prune,     0, "");
  555 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
  556         nd6_delay, CTLFLAG_RW,          &nd6_delay,     0, "");
  557 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
  558         nd6_umaxtries, CTLFLAG_RW,      &nd6_umaxtries, 0, "");
  559 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
  560         nd6_mmaxtries, CTLFLAG_RW,      &nd6_mmaxtries, 0, "");
  561 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
  562         nd6_useloopback, CTLFLAG_RW,    &nd6_useloopback, 0, "");
  563 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
  564         nodeinfo, CTLFLAG_RW,   &icmp6_nodeinfo,        0, "");
  565 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
  566         errppslimit, CTLFLAG_RW,        &icmp6errppslim,        0, "");
  567 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
  568         nd6_maxnudhint, CTLFLAG_RW,     &nd6_maxnudhint, 0, "");
  569 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
  570         nd6_debug, CTLFLAG_RW,  &nd6_debug,             0, "");
  571 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
  572         nd6_onlink_ns_rfc4861, CTLFLAG_RW, &nd6_onlink_ns_rfc4861, 0,
  573         "Accept 'on-link' nd6 NS in compliance with RFC 4861.");

Cache object: a9077ca4598dfeac867f71d6f16bdd5d


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