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 /*      $FreeBSD$       */
    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 #include "opt_sctp.h"
   70 
   71 #include <sys/param.h>
   72 #include <sys/socket.h>
   73 #include <sys/socketvar.h>
   74 #include <sys/protosw.h>
   75 #include <sys/kernel.h>
   76 #include <sys/domain.h>
   77 #include <sys/mbuf.h>
   78 #include <sys/systm.h>
   79 #include <sys/sysctl.h>
   80 
   81 #include <net/if.h>
   82 #include <net/radix.h>
   83 #include <net/route.h>
   84 
   85 #include <netinet/in.h>
   86 #include <netinet/in_systm.h>
   87 #include <netinet/in_var.h>
   88 #include <netinet/ip_encap.h>
   89 #include <netinet/ip.h>
   90 #include <netinet/ip_var.h>
   91 #include <netinet/ip6.h>
   92 #include <netinet6/ip6_var.h>
   93 #include <netinet/icmp6.h>
   94 
   95 #include <netinet/tcp.h>
   96 #include <netinet/tcp_timer.h>
   97 #include <netinet/tcp_var.h>
   98 #include <netinet/udp.h>
   99 #include <netinet/udp_var.h>
  100 #include <netinet6/tcp6_var.h>
  101 #include <netinet6/raw_ip6.h>
  102 #include <netinet6/udp6_var.h>
  103 #include <netinet6/pim6_var.h>
  104 #include <netinet6/nd6.h>
  105 
  106 #ifdef DEV_CARP
  107 #include <netinet/ip_carp.h>
  108 #endif
  109 
  110 #ifdef SCTP
  111 #include <netinet/in_pcb.h>
  112 #include <netinet/sctp_pcb.h>
  113 #include <netinet/sctp.h>
  114 #include <netinet/sctp_var.h>
  115 #include <netinet6/sctp6_var.h>
  116 #endif /* SCTP */
  117 
  118 #ifdef IPSEC
  119 #include <netipsec/ipsec.h>
  120 #include <netipsec/ipsec6.h>
  121 #endif /* IPSEC */
  122 
  123 #include <netinet6/ip6protosw.h>
  124 
  125 /*
  126  * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
  127  */
  128 
  129 extern  struct domain inet6domain;
  130 static  struct pr_usrreqs nousrreqs;
  131 
  132 #define PR_LISTEN       0
  133 #define PR_ABRTACPTDIS  0
  134 
  135 struct ip6protosw inet6sw[] = {
  136 {
  137         .pr_type =              0,
  138         .pr_domain =            &inet6domain,
  139         .pr_protocol =          IPPROTO_IPV6,
  140         .pr_init =              ip6_init,
  141         .pr_slowtimo =          frag6_slowtimo,
  142         .pr_drain =             frag6_drain,
  143         .pr_usrreqs =           &nousrreqs,
  144 },
  145 {
  146         .pr_type =              SOCK_DGRAM,
  147         .pr_domain =            &inet6domain,
  148         .pr_protocol =          IPPROTO_UDP,
  149         .pr_flags =             PR_ATOMIC|PR_ADDR,
  150         .pr_input =             udp6_input,
  151         .pr_ctlinput =          udp6_ctlinput,
  152         .pr_ctloutput =         ip6_ctloutput,
  153         .pr_usrreqs =           &udp6_usrreqs,
  154 },
  155 {
  156         .pr_type =              SOCK_STREAM,
  157         .pr_domain =            &inet6domain,
  158         .pr_protocol =          IPPROTO_TCP,
  159         .pr_flags =             PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
  160         .pr_input =             tcp6_input,
  161         .pr_ctlinput =          tcp6_ctlinput,
  162         .pr_ctloutput =         tcp_ctloutput,
  163 #ifndef INET    /* don't call initialization and timeout routines twice */
  164         .pr_init =              tcp_init,
  165         .pr_fasttimo =          tcp_fasttimo,
  166         .pr_slowtimo =          tcp_slowtimo,
  167 #endif
  168         .pr_drain =             tcp_drain,
  169         .pr_usrreqs =           &tcp6_usrreqs,
  170 },
  171 #ifdef SCTP
  172 {
  173         .pr_type =      SOCK_DGRAM,
  174         .pr_domain =    &inet6domain,
  175         .pr_protocol =  IPPROTO_SCTP,
  176         .pr_flags =     PR_WANTRCVD,
  177         .pr_input =     sctp6_input,
  178         .pr_ctlinput =  sctp6_ctlinput,
  179         .pr_ctloutput = sctp_ctloutput,
  180         .pr_drain =     sctp_drain,
  181         .pr_usrreqs =   &sctp6_usrreqs
  182 },
  183 {
  184         .pr_type =      SOCK_SEQPACKET,
  185         .pr_domain =    &inet6domain,
  186         .pr_protocol =  IPPROTO_SCTP,
  187         .pr_flags =     PR_WANTRCVD,
  188         .pr_input =     sctp6_input,
  189         .pr_ctlinput =  sctp6_ctlinput,
  190         .pr_ctloutput = sctp_ctloutput,
  191         .pr_drain =     sctp_drain,
  192         .pr_usrreqs =   &sctp6_usrreqs
  193 },
  194 
  195 {
  196         .pr_type =      SOCK_STREAM,
  197         .pr_domain =    &inet6domain,
  198         .pr_protocol =  IPPROTO_SCTP,
  199         .pr_flags =     PR_WANTRCVD,
  200         .pr_input =     sctp6_input,
  201         .pr_ctlinput =  sctp6_ctlinput,
  202         .pr_ctloutput = sctp_ctloutput,
  203         .pr_drain =     sctp_drain,
  204         .pr_usrreqs =   &sctp6_usrreqs
  205 },
  206 #endif /* SCTP */
  207 {
  208         .pr_type =              SOCK_RAW,
  209         .pr_domain =            &inet6domain,
  210         .pr_protocol =          IPPROTO_RAW,
  211         .pr_flags =             PR_ATOMIC|PR_ADDR,
  212         .pr_input =             rip6_input,
  213         .pr_output =            rip6_output,
  214         .pr_ctlinput =          rip6_ctlinput,
  215         .pr_ctloutput =         rip6_ctloutput,
  216         .pr_usrreqs =           &rip6_usrreqs
  217 },
  218 {
  219         .pr_type =              SOCK_RAW,
  220         .pr_domain =            &inet6domain,
  221         .pr_protocol =          IPPROTO_ICMPV6,
  222         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  223         .pr_input =             icmp6_input,
  224         .pr_output =            rip6_output,
  225         .pr_ctlinput =          rip6_ctlinput,
  226         .pr_ctloutput =         rip6_ctloutput,
  227         .pr_init =              icmp6_init,
  228         .pr_fasttimo =          icmp6_fasttimo,
  229         .pr_usrreqs =           &rip6_usrreqs
  230 },
  231 {
  232         .pr_type =              SOCK_RAW,
  233         .pr_domain =            &inet6domain,
  234         .pr_protocol =          IPPROTO_DSTOPTS,
  235         .pr_flags =             PR_ATOMIC|PR_ADDR,
  236         .pr_input =             dest6_input,
  237         .pr_usrreqs =           &nousrreqs
  238 },
  239 {
  240         .pr_type =              SOCK_RAW,
  241         .pr_domain =            &inet6domain,
  242         .pr_protocol =          IPPROTO_ROUTING,
  243         .pr_flags =             PR_ATOMIC|PR_ADDR,
  244         .pr_input =             route6_input,
  245         .pr_usrreqs =           &nousrreqs
  246 },
  247 {
  248         .pr_type =              SOCK_RAW,
  249         .pr_domain =            &inet6domain,
  250         .pr_protocol =          IPPROTO_FRAGMENT,
  251         .pr_flags =             PR_ATOMIC|PR_ADDR,
  252         .pr_input =             frag6_input,
  253         .pr_usrreqs =           &nousrreqs
  254 },
  255 #ifdef IPSEC
  256 {
  257         .pr_type =              SOCK_RAW,
  258         .pr_domain =            &inet6domain,
  259         .pr_protocol =          IPPROTO_AH,
  260         .pr_flags =             PR_ATOMIC|PR_ADDR,
  261         .pr_input =             ipsec6_common_input,
  262         .pr_usrreqs =           &nousrreqs,
  263 },
  264 {
  265         .pr_type =              SOCK_RAW,
  266         .pr_domain =            &inet6domain,
  267         .pr_protocol =          IPPROTO_ESP,
  268         .pr_flags =             PR_ATOMIC|PR_ADDR,
  269         .pr_input =             ipsec6_common_input,
  270         .pr_ctlinput =          esp6_ctlinput,
  271         .pr_usrreqs =           &nousrreqs,
  272 },
  273 {
  274         .pr_type =              SOCK_RAW,
  275         .pr_domain =            &inet6domain,
  276         .pr_protocol =          IPPROTO_IPCOMP,
  277         .pr_flags =             PR_ATOMIC|PR_ADDR,
  278         .pr_input =             ipsec6_common_input,
  279         .pr_usrreqs =           &nousrreqs,
  280 },
  281 #endif /* IPSEC */
  282 #ifdef INET
  283 {
  284         .pr_type =              SOCK_RAW,
  285         .pr_domain =            &inet6domain,
  286         .pr_protocol =          IPPROTO_IPV4,
  287         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  288         .pr_input =             encap6_input,
  289         .pr_output =            rip6_output,
  290         .pr_ctloutput =         rip6_ctloutput,
  291         .pr_init =              encap_init,
  292         .pr_usrreqs =           &rip6_usrreqs
  293 },
  294 #endif /* INET */
  295 {
  296         .pr_type =              SOCK_RAW,
  297         .pr_domain =            &inet6domain,
  298         .pr_protocol =          IPPROTO_IPV6,
  299         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  300         .pr_input =             encap6_input,
  301         .pr_output =            rip6_output,
  302         .pr_ctloutput =         rip6_ctloutput,
  303         .pr_init =              encap_init,
  304         .pr_usrreqs =           &rip6_usrreqs
  305 },
  306 {
  307         .pr_type =              SOCK_RAW,
  308         .pr_domain =            &inet6domain,
  309         .pr_protocol =          IPPROTO_PIM,
  310         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  311         .pr_input =             encap6_input,
  312         .pr_output =            rip6_output,
  313         .pr_ctloutput =         rip6_ctloutput,
  314         .pr_usrreqs =           &rip6_usrreqs
  315 },
  316 #ifdef DEV_CARP
  317 {
  318         .pr_type =              SOCK_RAW,
  319         .pr_domain =            &inet6domain,
  320         .pr_protocol =          IPPROTO_CARP,
  321         .pr_flags =             PR_ATOMIC|PR_ADDR,
  322         .pr_input =             carp6_input,
  323         .pr_output =            rip6_output,
  324         .pr_ctloutput =         rip6_ctloutput,
  325         .pr_usrreqs =           &rip6_usrreqs
  326 },
  327 #endif /* DEV_CARP */
  328 /* raw wildcard */
  329 {
  330         .pr_type =              SOCK_RAW,
  331         .pr_domain =            &inet6domain,
  332         .pr_flags =             PR_ATOMIC|PR_ADDR,
  333         .pr_input =             rip6_input,
  334         .pr_output =            rip6_output,
  335         .pr_ctloutput =         rip6_ctloutput,
  336         .pr_usrreqs =           &rip6_usrreqs
  337 },
  338 };
  339 
  340 extern int in6_inithead __P((void **, int));
  341 
  342 struct domain inet6domain = {
  343         .dom_family =           AF_INET6,
  344         .dom_name =             "internet6",
  345         .dom_protosw =          (struct protosw *)inet6sw,
  346         .dom_protoswNPROTOSW =  (struct protosw *)
  347                                 &inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
  348         .dom_rtattach =         in6_inithead,
  349         .dom_rtoffset =         offsetof(struct sockaddr_in6, sin6_addr) << 3,
  350         .dom_maxrtkey =         sizeof(struct sockaddr_in6),
  351         .dom_ifattach =         in6_domifattach,
  352         .dom_ifdetach =         in6_domifdetach
  353 };
  354 
  355 DOMAIN_SET(inet6);
  356 
  357 /*
  358  * Internet configuration info
  359  */
  360 #ifndef IPV6FORWARDING
  361 #ifdef GATEWAY6
  362 #define IPV6FORWARDING  1       /* forward IP6 packets not for us */
  363 #else
  364 #define IPV6FORWARDING  0       /* don't forward IP6 packets not for us */
  365 #endif /* GATEWAY6 */
  366 #endif /* !IPV6FORWARDING */
  367 
  368 #ifndef IPV6_SENDREDIRECTS
  369 #define IPV6_SENDREDIRECTS      1
  370 #endif
  371 
  372 int     ip6_forwarding = IPV6FORWARDING;        /* act as router? */
  373 int     ip6_sendredirects = IPV6_SENDREDIRECTS;
  374 int     ip6_defhlim = IPV6_DEFHLIM;
  375 int     ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
  376 int     ip6_accept_rtadv = 0;   /* "IPV6FORWARDING ? 0 : 1" is dangerous */
  377 int     ip6_maxfragpackets;     /* initialized in frag6.c:frag6_init() */
  378 int     ip6_maxfrags;   /* initialized in frag6.c:frag6_init() */
  379 int     ip6_log_interval = 5;
  380 int     ip6_hdrnestlimit = 15;  /* How many header options will we process? */
  381 int     ip6_dad_count = 1;      /* DupAddrDetectionTransmits */
  382 int     ip6_auto_flowlabel = 1;
  383 int     ip6_gif_hlim = 0;
  384 int     ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
  385 int     ip6_rr_prune = 5;       /* router renumbering prefix
  386                                  * walk list every 5 sec. */
  387 int     ip6_mcast_pmtu = 0;     /* enable pMTU discovery for multicast? */
  388 int     ip6_v6only = 1;
  389 
  390 int     ip6_keepfaith = 0;
  391 time_t  ip6_log_time = (time_t)0L;
  392 #ifdef IPSTEALTH
  393 int     ip6stealth = 0;
  394 #endif
  395 int     nd6_onlink_ns_rfc4861 = 0; /* allow 'on-link' nd6 NS (as in RFC 4861) */
  396 
  397 /* icmp6 */
  398 /*
  399  * BSDI4 defines these variables in in_proto.c...
  400  * XXX: what if we don't define INET? Should we define pmtu6_expire
  401  * or so? (jinmei@kame.net 19990310)
  402  */
  403 int pmtu_expire = 60*10;
  404 int pmtu_probe = 60*2;
  405 
  406 /* raw IP6 parameters */
  407 /*
  408  * Nominal space allocated to a raw ip socket.
  409  */
  410 #define RIPV6SNDQ       8192
  411 #define RIPV6RCVQ       8192
  412 
  413 u_long  rip6_sendspace = RIPV6SNDQ;
  414 u_long  rip6_recvspace = RIPV6RCVQ;
  415 
  416 /* ICMPV6 parameters */
  417 int     icmp6_rediraccept = 1;          /* accept and process redirects */
  418 int     icmp6_redirtimeout = 10 * 60;   /* 10 minutes */
  419 int     icmp6errppslim = 100;           /* 100pps */
  420 /* control how to respond to NI queries */
  421 int     icmp6_nodeinfo = (ICMP6_NODEINFO_FQDNOK|ICMP6_NODEINFO_NODEADDROK);
  422 
  423 /* UDP on IP6 parameters */
  424 int     udp6_sendspace = 9216;          /* really max datagram size */
  425 int     udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
  426                                         /* 40 1K datagrams */
  427 
  428 /*
  429  * sysctl related items.
  430  */
  431 SYSCTL_NODE(_net,       PF_INET6,       inet6,  CTLFLAG_RW,     0,
  432         "Internet6 Family");
  433 
  434 /* net.inet6 */
  435 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6,   ip6,    CTLFLAG_RW, 0,  "IP6");
  436 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6,  CTLFLAG_RW, 0,  "ICMP6");
  437 SYSCTL_NODE(_net_inet6, IPPROTO_UDP,    udp6,   CTLFLAG_RW, 0,  "UDP6");
  438 SYSCTL_NODE(_net_inet6, IPPROTO_TCP,    tcp6,   CTLFLAG_RW, 0,  "TCP6");
  439 #ifdef SCTP
  440 SYSCTL_NODE(_net_inet6, IPPROTO_SCTP,   sctp6,  CTLFLAG_RW, 0,  "SCTP6");
  441 #endif
  442 #ifdef IPSEC
  443 SYSCTL_NODE(_net_inet6, IPPROTO_ESP,    ipsec6, CTLFLAG_RW, 0,  "IPSEC6");
  444 #endif /* IPSEC */
  445 
  446 /* net.inet6.ip6 */
  447 static int
  448 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
  449 {
  450         int error = 0;
  451         int old;
  452 
  453         error = SYSCTL_OUT(req, arg1, sizeof(int));
  454         if (error || !req->newptr)
  455                 return (error);
  456         old = ip6_temp_preferred_lifetime;
  457         error = SYSCTL_IN(req, arg1, sizeof(int));
  458         if (ip6_temp_preferred_lifetime <
  459             ip6_desync_factor + ip6_temp_regen_advance) {
  460                 ip6_temp_preferred_lifetime = old;
  461                 return (EINVAL);
  462         }
  463         return (error);
  464 }
  465 
  466 static int
  467 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
  468 {
  469         int error = 0;
  470         int old;
  471 
  472         error = SYSCTL_OUT(req, arg1, sizeof(int));
  473         if (error || !req->newptr)
  474                 return (error);
  475         old = ip6_temp_valid_lifetime;
  476         error = SYSCTL_IN(req, arg1, sizeof(int));
  477         if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) {
  478                 ip6_temp_preferred_lifetime = old;
  479                 return (EINVAL);
  480         }
  481         return (error);
  482 }
  483 
  484 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING,
  485         forwarding, CTLFLAG_RW,         &ip6_forwarding,        0, "");
  486 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
  487         redirect, CTLFLAG_RW,           &ip6_sendredirects,     0, "");
  488 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
  489         hlim, CTLFLAG_RW,               &ip6_defhlim,   0, "");
  490 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
  491         &ip6stat, ip6stat, "");
  492 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS,
  493         maxfragpackets, CTLFLAG_RW,     &ip6_maxfragpackets,    0, "");
  494 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
  495         accept_rtadv, CTLFLAG_RW,       &ip6_accept_rtadv,      0, "");
  496 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
  497         keepfaith, CTLFLAG_RW,          &ip6_keepfaith, 0, "");
  498 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
  499         log_interval, CTLFLAG_RW,       &ip6_log_interval,      0, "");
  500 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
  501         hdrnestlimit, CTLFLAG_RW,       &ip6_hdrnestlimit,      0, "");
  502 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
  503         dad_count, CTLFLAG_RW,  &ip6_dad_count, 0, "");
  504 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
  505         auto_flowlabel, CTLFLAG_RW,     &ip6_auto_flowlabel,    0, "");
  506 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
  507         defmcasthlim, CTLFLAG_RW,       &ip6_defmcasthlim,      0, "");
  508 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
  509         gifhlim, CTLFLAG_RW,    &ip6_gif_hlim,                  0, "");
  510 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
  511         kame_version, CTLFLAG_RD,       __KAME_VERSION,         0, "");
  512 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
  513         use_deprecated, CTLFLAG_RW,     &ip6_use_deprecated,    0, "");
  514 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
  515         rr_prune, CTLFLAG_RW,   &ip6_rr_prune,                  0, "");
  516 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
  517         use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr,            0, "");
  518 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
  519            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
  520            sysctl_ip6_temppltime, "I", "");
  521 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
  522            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
  523            sysctl_ip6_tempvltime, "I", "");
  524 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
  525         v6only, CTLFLAG_RW,     &ip6_v6only,                    0, "");
  526 TUNABLE_INT("net.inet6.ip6.auto_linklocal", &ip6_auto_linklocal);
  527 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
  528         auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal,        0, "");
  529 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
  530         &rip6stat, rip6stat, "");
  531 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
  532         prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr,      0, "");
  533 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE,
  534         use_defaultzone, CTLFLAG_RW, &ip6_use_defzone,          0,"");
  535 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS,
  536         maxfrags, CTLFLAG_RW,           &ip6_maxfrags,  0, "");
  537 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU,
  538         mcast_pmtu, CTLFLAG_RW,         &ip6_mcast_pmtu,        0, "");
  539 #ifdef IPSTEALTH
  540 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
  541         &ip6stealth, 0, "");
  542 #endif
  543 
  544 /* net.inet6.icmp6 */
  545 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
  546         rediraccept, CTLFLAG_RW,        &icmp6_rediraccept,     0, "");
  547 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
  548         redirtimeout, CTLFLAG_RW,       &icmp6_redirtimeout,    0, "");
  549 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
  550         &icmp6stat, icmp6stat, "");
  551 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
  552         nd6_prune, CTLFLAG_RW,          &nd6_prune,     0, "");
  553 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
  554         nd6_delay, CTLFLAG_RW,          &nd6_delay,     0, "");
  555 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
  556         nd6_umaxtries, CTLFLAG_RW,      &nd6_umaxtries, 0, "");
  557 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
  558         nd6_mmaxtries, CTLFLAG_RW,      &nd6_mmaxtries, 0, "");
  559 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
  560         nd6_useloopback, CTLFLAG_RW,    &nd6_useloopback, 0, "");
  561 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
  562         nodeinfo, CTLFLAG_RW,   &icmp6_nodeinfo,        0, "");
  563 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
  564         errppslimit, CTLFLAG_RW,        &icmp6errppslim,        0, "");
  565 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
  566         nd6_maxnudhint, CTLFLAG_RW,     &nd6_maxnudhint, 0, "");
  567 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
  568         nd6_debug, CTLFLAG_RW,  &nd6_debug,             0, "");
  569 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
  570         nd6_onlink_ns_rfc4861, CTLFLAG_RW, &nd6_onlink_ns_rfc4861, 0,
  571         "Accept 'on-link' nd6 NS in compliance with RFC 4861.");

Cache object: 7c5f1481add08fe026d21d188c5d6adb


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