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 /*      $FreeBSD: releng/5.3/sys/netinet6/in6_proto.c 136588 2004-10-16 08:43:07Z cvs2svn $     */
    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 
   68 #include <sys/param.h>
   69 #include <sys/socket.h>
   70 #include <sys/socketvar.h>
   71 #include <sys/protosw.h>
   72 #include <sys/kernel.h>
   73 #include <sys/domain.h>
   74 #include <sys/mbuf.h>
   75 #include <sys/systm.h>
   76 #include <sys/sysctl.h>
   77 
   78 #include <net/if.h>
   79 #include <net/radix.h>
   80 #include <net/route.h>
   81 
   82 #include <netinet/in.h>
   83 #include <netinet/in_systm.h>
   84 #include <netinet/in_var.h>
   85 #include <netinet/ip_encap.h>
   86 #include <netinet/ip.h>
   87 #include <netinet/ip_var.h>
   88 #include <netinet/ip6.h>
   89 #include <netinet6/ip6_var.h>
   90 #include <netinet/icmp6.h>
   91 
   92 #include <netinet/tcp.h>
   93 #include <netinet/tcp_timer.h>
   94 #include <netinet/tcp_var.h>
   95 #include <netinet/udp.h>
   96 #include <netinet/udp_var.h>
   97 #include <netinet6/tcp6_var.h>
   98 #include <netinet6/raw_ip6.h>
   99 #include <netinet6/udp6_var.h>
  100 #include <netinet6/pim6_var.h>
  101 #include <netinet6/nd6.h>
  102 
  103 #ifdef IPSEC
  104 #include <netinet6/ipsec.h>
  105 #ifdef INET6
  106 #include <netinet6/ipsec6.h>
  107 #endif
  108 #include <netinet6/ah.h>
  109 #ifdef INET6
  110 #include <netinet6/ah6.h>
  111 #endif
  112 #ifdef IPSEC_ESP
  113 #include <netinet6/esp.h>
  114 #ifdef INET6
  115 #include <netinet6/esp6.h>
  116 #endif
  117 #endif
  118 #include <netinet6/ipcomp.h>
  119 #ifdef INET6
  120 #include <netinet6/ipcomp6.h>
  121 #endif
  122 #endif /* IPSEC */
  123 
  124 #ifdef FAST_IPSEC
  125 #include <netipsec/ipsec6.h>
  126 #define IPSEC
  127 #define IPSEC_ESP
  128 #define ah6_input       ipsec6_common_input
  129 #define esp6_input      ipsec6_common_input
  130 #define ipcomp6_input   ipsec6_common_input
  131 #endif /* FAST_IPSEC */
  132 
  133 #include <netinet6/ip6protosw.h>
  134 
  135 #include <net/net_osdep.h>
  136 
  137 /*
  138  * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
  139  */
  140 
  141 extern  struct domain inet6domain;
  142 static struct pr_usrreqs nousrreqs;
  143 
  144 #define PR_LISTEN       0
  145 #define PR_ABRTACPTDIS  0
  146 
  147 struct ip6protosw inet6sw[] = {
  148 { 0,            &inet6domain,   IPPROTO_IPV6,   0,
  149   0,            0,              0,              0,
  150   0,
  151   ip6_init,     0,              frag6_slowtimo, frag6_drain,
  152   &nousrreqs,
  153 },
  154 { SOCK_DGRAM,   &inet6domain,   IPPROTO_UDP,    PR_ATOMIC|PR_ADDR,
  155   udp6_input,   0,              udp6_ctlinput,  ip6_ctloutput,
  156   0,
  157   0,            0,              0,              0,
  158   &udp6_usrreqs,
  159 },
  160 { SOCK_STREAM,  &inet6domain,   IPPROTO_TCP,    PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
  161   tcp6_input,   0,              tcp6_ctlinput,  tcp_ctloutput,
  162   0,
  163 #ifdef INET     /* don't call initialization and timeout routines twice */
  164   0,            0,              0,              tcp_drain,
  165 #else
  166   tcp_init,     tcp_fasttimo,   tcp_slowtimo,   tcp_drain,
  167 #endif
  168   &tcp6_usrreqs,
  169 },
  170 { SOCK_RAW,     &inet6domain,   IPPROTO_RAW,    PR_ATOMIC|PR_ADDR,
  171   rip6_input,   rip6_output,    rip6_ctlinput,  rip6_ctloutput,
  172   0,
  173   0,            0,              0,              0,
  174   &rip6_usrreqs
  175 },
  176 { SOCK_RAW,     &inet6domain,   IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  177   icmp6_input,  rip6_output,    rip6_ctlinput,  rip6_ctloutput,
  178   0,
  179   icmp6_init,   icmp6_fasttimo, 0,              0,
  180   &rip6_usrreqs
  181 },
  182 { SOCK_RAW,     &inet6domain,   IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR,
  183   dest6_input,  0,              0,              0,
  184   0,
  185   0,            0,              0,              0,
  186   &nousrreqs
  187 },
  188 { SOCK_RAW,     &inet6domain,   IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR,
  189   route6_input, 0,              0,              0,
  190   0,
  191   0,            0,              0,              0,
  192   &nousrreqs
  193 },
  194 { SOCK_RAW,     &inet6domain,   IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR,
  195   frag6_input,  0,              0,              0,
  196   0,
  197   0,            0,              0,              0,
  198   &nousrreqs
  199 },
  200 #ifdef IPSEC
  201 { SOCK_RAW,     &inet6domain,   IPPROTO_AH,     PR_ATOMIC|PR_ADDR,
  202   ah6_input,    0,              0,              0,
  203   0,
  204   0,            0,              0,              0,
  205   &nousrreqs,
  206 },
  207 #ifdef IPSEC_ESP
  208 { SOCK_RAW,     &inet6domain,   IPPROTO_ESP,    PR_ATOMIC|PR_ADDR,
  209   esp6_input,   0,
  210   esp6_ctlinput,
  211   0,
  212   0,
  213   0,            0,              0,              0,
  214   &nousrreqs,
  215 },
  216 #endif
  217 { SOCK_RAW,     &inet6domain,   IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
  218   ipcomp6_input, 0,             0,              0,
  219   0,
  220   0,            0,              0,              0,
  221   &nousrreqs,
  222 },
  223 #endif /* IPSEC */
  224 #ifdef INET
  225 { SOCK_RAW,     &inet6domain,   IPPROTO_IPV4,   PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  226   encap6_input, rip6_output,    0,              rip6_ctloutput,
  227   0,
  228   encap_init,   0,              0,              0,
  229   &rip6_usrreqs
  230 },
  231 #endif /* INET */
  232 { SOCK_RAW,     &inet6domain,   IPPROTO_IPV6,   PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  233   encap6_input, rip6_output,    0,              rip6_ctloutput,
  234   0,
  235   encap_init,   0,              0,              0,
  236   &rip6_usrreqs
  237 },
  238 { SOCK_RAW,     &inet6domain,   IPPROTO_PIM,    PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  239   pim6_input,   rip6_output,    0,              rip6_ctloutput,
  240   0,
  241   0,            0,              0,              0,
  242   &rip6_usrreqs
  243 },
  244 /* raw wildcard */
  245 { SOCK_RAW,     &inet6domain,   0,              PR_ATOMIC|PR_ADDR,
  246   rip6_input,   rip6_output,    0,              rip6_ctloutput,
  247   0,
  248   0,            0,              0,              0,
  249   &rip6_usrreqs
  250 },
  251 };
  252 
  253 extern int in6_inithead __P((void **, int));
  254 
  255 struct domain inet6domain =
  256     { AF_INET6, "internet6", 0, 0, 0,
  257       (struct protosw *)inet6sw,
  258       (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0,
  259       in6_inithead,
  260       offsetof(struct sockaddr_in6, sin6_addr) << 3,
  261       sizeof(struct sockaddr_in6),
  262       in6_domifattach, in6_domifdetach, };
  263 
  264 DOMAIN_SET(inet6);
  265 
  266 /*
  267  * Internet configuration info
  268  */
  269 #ifndef IPV6FORWARDING
  270 #ifdef GATEWAY6
  271 #define IPV6FORWARDING  1       /* forward IP6 packets not for us */
  272 #else
  273 #define IPV6FORWARDING  0       /* don't forward IP6 packets not for us */
  274 #endif /* GATEWAY6 */
  275 #endif /* !IPV6FORWARDING */
  276 
  277 #ifndef IPV6_SENDREDIRECTS
  278 #define IPV6_SENDREDIRECTS      1
  279 #endif
  280 
  281 int     ip6_forwarding = IPV6FORWARDING;        /* act as router? */
  282 int     ip6_sendredirects = IPV6_SENDREDIRECTS;
  283 int     ip6_defhlim = IPV6_DEFHLIM;
  284 int     ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
  285 int     ip6_accept_rtadv = 0;   /* "IPV6FORWARDING ? 0 : 1" is dangerous */
  286 int     ip6_maxfragpackets;     /* initialized in frag6.c:frag6_init() */
  287 int     ip6_maxfrags;   /* initialized in frag6.c:frag6_init() */
  288 int     ip6_log_interval = 5;
  289 int     ip6_hdrnestlimit = 50;  /* appropriate? */
  290 int     ip6_dad_count = 1;      /* DupAddrDetectionTransmits */
  291 int     ip6_auto_flowlabel = 1;
  292 int     ip6_gif_hlim = 0;
  293 int     ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */
  294 int     ip6_rr_prune = 5;       /* router renumbering prefix
  295                                  * walk list every 5 sec. */
  296 int     ip6_v6only = 1;
  297 
  298 int     ip6_keepfaith = 0;
  299 time_t  ip6_log_time = (time_t)0L;
  300 
  301 /* icmp6 */
  302 /*
  303  * BSDI4 defines these variables in in_proto.c...
  304  * XXX: what if we don't define INET? Should we define pmtu6_expire
  305  * or so? (jinmei@kame.net 19990310)
  306  */
  307 int pmtu_expire = 60*10;
  308 int pmtu_probe = 60*2;
  309 
  310 /* raw IP6 parameters */
  311 /*
  312  * Nominal space allocated to a raw ip socket.
  313  */
  314 #define RIPV6SNDQ       8192
  315 #define RIPV6RCVQ       8192
  316 
  317 u_long  rip6_sendspace = RIPV6SNDQ;
  318 u_long  rip6_recvspace = RIPV6RCVQ;
  319 
  320 /* ICMPV6 parameters */
  321 int     icmp6_rediraccept = 1;          /* accept and process redirects */
  322 int     icmp6_redirtimeout = 10 * 60;   /* 10 minutes */
  323 int     icmp6errppslim = 100;           /* 100pps */
  324 int     icmp6_nodeinfo = 3;             /* enable/disable NI response */
  325 
  326 /* UDP on IP6 parameters */
  327 int     udp6_sendspace = 9216;          /* really max datagram size */
  328 int     udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
  329                                         /* 40 1K datagrams */
  330 
  331 /*
  332  * sysctl related items.
  333  */
  334 SYSCTL_NODE(_net,       PF_INET6,       inet6,  CTLFLAG_RW,     0,
  335         "Internet6 Family");
  336 
  337 /* net.inet6 */
  338 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6,   ip6,    CTLFLAG_RW, 0,  "IP6");
  339 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6,  CTLFLAG_RW, 0,  "ICMP6");
  340 SYSCTL_NODE(_net_inet6, IPPROTO_UDP,    udp6,   CTLFLAG_RW, 0,  "UDP6");
  341 SYSCTL_NODE(_net_inet6, IPPROTO_TCP,    tcp6,   CTLFLAG_RW, 0,  "TCP6");
  342 #ifdef IPSEC
  343 SYSCTL_NODE(_net_inet6, IPPROTO_ESP,    ipsec6, CTLFLAG_RW, 0,  "IPSEC6");
  344 #endif /* IPSEC */
  345 
  346 /* net.inet6.ip6 */
  347 static int
  348 sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
  349 {
  350         int error = 0;
  351         int old;
  352 
  353         error = SYSCTL_OUT(req, arg1, sizeof(int));
  354         if (error || !req->newptr)
  355                 return (error);
  356         old = ip6_temp_preferred_lifetime;
  357         error = SYSCTL_IN(req, arg1, sizeof(int));
  358         if (ip6_temp_preferred_lifetime <
  359             ip6_desync_factor + ip6_temp_regen_advance) {
  360                 ip6_temp_preferred_lifetime = old;
  361                 return (EINVAL);
  362         }
  363         return (error);
  364 }
  365 
  366 static int
  367 sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
  368 {
  369         int error = 0;
  370         int old;
  371 
  372         error = SYSCTL_OUT(req, arg1, sizeof(int));
  373         if (error || !req->newptr)
  374                 return (error);
  375         old = ip6_temp_valid_lifetime;
  376         error = SYSCTL_IN(req, arg1, sizeof(int));
  377         if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) {
  378                 ip6_temp_preferred_lifetime = old;
  379                 return (EINVAL);
  380         }
  381         return (error);
  382 }
  383 
  384 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING,
  385         forwarding, CTLFLAG_RW,         &ip6_forwarding,        0, "");
  386 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS,
  387         redirect, CTLFLAG_RW,           &ip6_sendredirects,     0, "");
  388 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM,
  389         hlim, CTLFLAG_RW,               &ip6_defhlim,   0, "");
  390 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
  391         &ip6stat, ip6stat, "");
  392 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS,
  393         maxfragpackets, CTLFLAG_RW,     &ip6_maxfragpackets,    0, "");
  394 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV,
  395         accept_rtadv, CTLFLAG_RW,       &ip6_accept_rtadv,      0, "");
  396 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH,
  397         keepfaith, CTLFLAG_RW,          &ip6_keepfaith, 0, "");
  398 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL,
  399         log_interval, CTLFLAG_RW,       &ip6_log_interval,      0, "");
  400 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT,
  401         hdrnestlimit, CTLFLAG_RW,       &ip6_hdrnestlimit,      0, "");
  402 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT,
  403         dad_count, CTLFLAG_RW,  &ip6_dad_count, 0, "");
  404 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL,
  405         auto_flowlabel, CTLFLAG_RW,     &ip6_auto_flowlabel,    0, "");
  406 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM,
  407         defmcasthlim, CTLFLAG_RW,       &ip6_defmcasthlim,      0, "");
  408 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM,
  409         gifhlim, CTLFLAG_RW,    &ip6_gif_hlim,                  0, "");
  410 SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
  411         kame_version, CTLFLAG_RD,       __KAME_VERSION,         0, "");
  412 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED,
  413         use_deprecated, CTLFLAG_RW,     &ip6_use_deprecated,    0, "");
  414 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE,
  415         rr_prune, CTLFLAG_RW,   &ip6_rr_prune,                  0, "");
  416 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR,
  417         use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr,            0, "");
  418 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
  419            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0,
  420            sysctl_ip6_temppltime, "I", "");
  421 SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
  422            CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_valid_lifetime, 0,
  423            sysctl_ip6_tempvltime, "I", "");
  424 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY,
  425         v6only, CTLFLAG_RW,     &ip6_v6only,                    0, "");
  426 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL,
  427         auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal,        0, "");
  428 SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
  429         &rip6stat, rip6stat, "");
  430 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR,
  431         prefer_tempaddr, CTLFLAG_RW, &ip6_prefer_tempaddr,      0, "");
  432 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS,
  433         maxfrags, CTLFLAG_RW,           &ip6_maxfrags,  0, "");
  434 
  435 /* net.inet6.icmp6 */
  436 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT,
  437         rediraccept, CTLFLAG_RW,        &icmp6_rediraccept,     0, "");
  438 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT,
  439         redirtimeout, CTLFLAG_RW,       &icmp6_redirtimeout,    0, "");
  440 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
  441         &icmp6stat, icmp6stat, "");
  442 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE,
  443         nd6_prune, CTLFLAG_RW,          &nd6_prune,     0, "");
  444 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY,
  445         nd6_delay, CTLFLAG_RW,          &nd6_delay,     0, "");
  446 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES,
  447         nd6_umaxtries, CTLFLAG_RW,      &nd6_umaxtries, 0, "");
  448 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES,
  449         nd6_mmaxtries, CTLFLAG_RW,      &nd6_mmaxtries, 0, "");
  450 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK,
  451         nd6_useloopback, CTLFLAG_RW,    &nd6_useloopback, 0, "");
  452 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO,
  453         nodeinfo, CTLFLAG_RW,   &icmp6_nodeinfo,        0, "");
  454 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT,
  455         errppslimit, CTLFLAG_RW,        &icmp6errppslim,        0, "");
  456 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT,
  457         nd6_maxnudhint, CTLFLAG_RW,     &nd6_maxnudhint, 0, "");
  458 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG,
  459         nd6_debug, CTLFLAG_RW,  &nd6_debug,             0, "");

Cache object: 2068ba1b83fdc737e022ae247cd99910


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