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in6_proto.c revision 1.59.2.4
      1  1.59.2.4     yamt /*	$NetBSD: in6_proto.c,v 1.59.2.4 2007/09/03 14:43:30 yamt Exp $	*/
      2      1.21   itojun /*	$KAME: in6_proto.c,v 1.66 2000/10/10 15:35:47 itojun Exp $	*/
      3       1.3  thorpej 
      4       1.2   itojun /*
      5       1.2   itojun  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      6       1.2   itojun  * All rights reserved.
      7      1.18   itojun  *
      8       1.2   itojun  * Redistribution and use in source and binary forms, with or without
      9       1.2   itojun  * modification, are permitted provided that the following conditions
     10       1.2   itojun  * are met:
     11       1.2   itojun  * 1. Redistributions of source code must retain the above copyright
     12       1.2   itojun  *    notice, this list of conditions and the following disclaimer.
     13       1.2   itojun  * 2. Redistributions in binary form must reproduce the above copyright
     14       1.2   itojun  *    notice, this list of conditions and the following disclaimer in the
     15       1.2   itojun  *    documentation and/or other materials provided with the distribution.
     16       1.2   itojun  * 3. Neither the name of the project nor the names of its contributors
     17       1.2   itojun  *    may be used to endorse or promote products derived from this software
     18       1.2   itojun  *    without specific prior written permission.
     19      1.18   itojun  *
     20       1.2   itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21       1.2   itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22       1.2   itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23       1.2   itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24       1.2   itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25       1.2   itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26       1.2   itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27       1.2   itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28       1.2   itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29       1.2   itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30       1.2   itojun  * SUCH DAMAGE.
     31       1.2   itojun  */
     32       1.2   itojun 
     33       1.2   itojun /*
     34       1.2   itojun  * Copyright (c) 1982, 1986, 1993
     35       1.2   itojun  *	The Regents of the University of California.  All rights reserved.
     36       1.2   itojun  *
     37       1.2   itojun  * Redistribution and use in source and binary forms, with or without
     38       1.2   itojun  * modification, are permitted provided that the following conditions
     39       1.2   itojun  * are met:
     40       1.2   itojun  * 1. Redistributions of source code must retain the above copyright
     41       1.2   itojun  *    notice, this list of conditions and the following disclaimer.
     42       1.2   itojun  * 2. Redistributions in binary form must reproduce the above copyright
     43       1.2   itojun  *    notice, this list of conditions and the following disclaimer in the
     44       1.2   itojun  *    documentation and/or other materials provided with the distribution.
     45      1.49      agc  * 3. Neither the name of the University nor the names of its contributors
     46       1.2   itojun  *    may be used to endorse or promote products derived from this software
     47       1.2   itojun  *    without specific prior written permission.
     48       1.2   itojun  *
     49       1.2   itojun  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     50       1.2   itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     51       1.2   itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     52       1.2   itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     53       1.2   itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     54       1.2   itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     55       1.2   itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     56       1.2   itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     57       1.2   itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     58       1.2   itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     59       1.2   itojun  * SUCH DAMAGE.
     60       1.2   itojun  *
     61       1.2   itojun  *	@(#)in_proto.c	8.1 (Berkeley) 6/10/93
     62       1.2   itojun  */
     63      1.34    lukem 
     64      1.34    lukem #include <sys/cdefs.h>
     65  1.59.2.4     yamt __KERNEL_RCSID(0, "$NetBSD: in6_proto.c,v 1.59.2.4 2007/09/03 14:43:30 yamt Exp $");
     66       1.2   itojun 
     67       1.2   itojun #include "opt_inet.h"
     68       1.4  thorpej #include "opt_ipsec.h"
     69      1.26   itojun #include "opt_iso.h"
     70       1.2   itojun 
     71       1.2   itojun #include <sys/param.h>
     72       1.2   itojun #include <sys/socket.h>
     73       1.2   itojun #include <sys/protosw.h>
     74       1.2   itojun #include <sys/kernel.h>
     75       1.2   itojun #include <sys/domain.h>
     76       1.2   itojun #include <sys/mbuf.h>
     77       1.2   itojun 
     78       1.2   itojun #include <net/if.h>
     79       1.2   itojun #include <net/radix.h>
     80       1.2   itojun #include <net/route.h>
     81       1.2   itojun 
     82       1.2   itojun #include <netinet/in.h>
     83       1.2   itojun #include <netinet/in_systm.h>
     84       1.2   itojun #include <netinet/in_var.h>
     85      1.17   itojun #include <netinet/ip_encap.h>
     86       1.2   itojun #include <netinet/ip.h>
     87       1.2   itojun #include <netinet/ip_var.h>
     88       1.2   itojun #include <netinet/in_pcb.h>
     89      1.13   itojun #include <netinet/ip6.h>
     90       1.2   itojun #include <netinet6/ip6_var.h>
     91      1.13   itojun #include <netinet/icmp6.h>
     92       1.2   itojun #include <netinet6/in6_pcb.h>
     93       1.2   itojun 
     94       1.2   itojun #include <netinet/tcp.h>
     95       1.2   itojun #include <netinet/tcp_fsm.h>
     96       1.2   itojun #include <netinet/tcp_seq.h>
     97       1.2   itojun #include <netinet/tcp_timer.h>
     98       1.2   itojun #include <netinet/tcp_var.h>
     99       1.2   itojun #include <netinet/tcpip.h>
    100       1.2   itojun #include <netinet/tcp_debug.h>
    101       1.2   itojun 
    102       1.2   itojun #include <netinet6/udp6.h>
    103       1.2   itojun #include <netinet6/udp6_var.h>
    104       1.2   itojun 
    105       1.2   itojun #include <netinet6/pim6_var.h>
    106       1.2   itojun 
    107       1.2   itojun #include <netinet6/nd6.h>
    108       1.2   itojun 
    109       1.2   itojun #ifdef IPSEC
    110       1.9   itojun #include <netinet6/ipsec.h>
    111       1.2   itojun #include <netinet6/ah.h>
    112       1.2   itojun #ifdef IPSEC_ESP
    113       1.2   itojun #include <netinet6/esp.h>
    114       1.2   itojun #endif
    115       1.2   itojun #include <netinet6/ipcomp.h>
    116      1.32   itojun #endif /* IPSEC */
    117       1.2   itojun 
    118  1.59.2.3     yamt #ifdef FAST_IPSEC
    119  1.59.2.3     yamt #include <netipsec/ipsec.h>
    120  1.59.2.3     yamt #include <netipsec/ipsec6.h>
    121  1.59.2.3     yamt #include <netipsec/key.h>
    122  1.59.2.3     yamt #endif /* FAST_IPSEC */
    123  1.59.2.3     yamt 
    124  1.59.2.3     yamt 
    125  1.59.2.1     yamt #include "carp.h"
    126  1.59.2.1     yamt #if NCARP > 0
    127  1.59.2.1     yamt #include <netinet/ip_carp.h>
    128  1.59.2.1     yamt #endif
    129  1.59.2.1     yamt 
    130  1.59.2.2     yamt #include "etherip.h"
    131  1.59.2.2     yamt #if NETHERIP > 1
    132  1.59.2.2     yamt #include <netinet6/ip6_etherip.h>
    133  1.59.2.2     yamt #endif
    134  1.59.2.2     yamt 
    135       1.2   itojun #include <netinet6/ip6protosw.h>
    136       1.2   itojun 
    137      1.35   itojun #include <net/net_osdep.h>
    138      1.35   itojun 
    139      1.47  thorpej #ifndef offsetof		/* XXX */
    140       1.2   itojun #define	offsetof(type, member)	((size_t)(&((type *)0)->member))
    141      1.47  thorpej #endif
    142       1.2   itojun 
    143       1.2   itojun /*
    144       1.2   itojun  * TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
    145       1.2   itojun  */
    146       1.2   itojun 
    147      1.58     matt DOMAIN_DEFINE(inet6domain);	/* forward declare and add to link set */
    148       1.2   itojun 
    149      1.57     matt const struct ip6protosw inet6sw[] = {
    150  1.59.2.4     yamt {	.pr_domain = &inet6domain,
    151  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPV6,
    152  1.59.2.4     yamt 	.pr_init = ip6_init,
    153  1.59.2.4     yamt 	.pr_slowtimo = frag6_slowtimo,
    154  1.59.2.4     yamt 	.pr_drain = frag6_drain,
    155  1.59.2.4     yamt },
    156  1.59.2.4     yamt {	.pr_type = SOCK_DGRAM,
    157  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    158  1.59.2.4     yamt 	.pr_protocol = IPPROTO_UDP,
    159  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
    160  1.59.2.4     yamt 	.pr_input = udp6_input,
    161  1.59.2.4     yamt 	.pr_ctlinput = udp6_ctlinput,
    162  1.59.2.4     yamt 	.pr_ctloutput = ip6_ctloutput,
    163  1.59.2.4     yamt 	.pr_usrreq = udp6_usrreq,
    164  1.59.2.4     yamt 	.pr_init = udp6_init,
    165  1.59.2.4     yamt },
    166  1.59.2.4     yamt {	.pr_type = SOCK_STREAM,
    167  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    168  1.59.2.4     yamt 	.pr_protocol = IPPROTO_TCP,
    169  1.59.2.4     yamt 	.pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF,
    170  1.59.2.4     yamt 	.pr_input = tcp6_input,
    171  1.59.2.4     yamt 	.pr_ctlinput = tcp6_ctlinput,
    172  1.59.2.4     yamt 	.pr_ctloutput = tcp_ctloutput,
    173  1.59.2.4     yamt 	.pr_usrreq = tcp_usrreq,
    174  1.59.2.3     yamt #ifndef INET	/* don't call initialization and timeout routines twice */
    175  1.59.2.4     yamt 	.pr_init = tcp_init,
    176  1.59.2.4     yamt 	.pr_slowtimo = tcp_slowtimo,
    177  1.59.2.4     yamt 	.pr_drain = tcp_drain,
    178       1.9   itojun #endif
    179       1.2   itojun },
    180  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    181  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    182  1.59.2.4     yamt 	.pr_protocol = IPPROTO_RAW,
    183  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
    184  1.59.2.4     yamt 	.pr_input = rip6_input,
    185  1.59.2.4     yamt 	.pr_output = rip6_output,
    186  1.59.2.4     yamt 	.pr_ctlinput = rip6_ctlinput,
    187  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    188  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    189  1.59.2.4     yamt },
    190  1.59.2.4     yamt #ifdef GATEWAY
    191  1.59.2.4     yamt {	.pr_domain = &inet6domain,
    192  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPV6,
    193  1.59.2.4     yamt 	.pr_slowtimo = ip6flow_slowtimo,
    194  1.59.2.4     yamt },
    195  1.59.2.4     yamt #endif /* GATEWAY */
    196  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    197  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    198  1.59.2.4     yamt 	.pr_protocol = IPPROTO_ICMPV6,
    199  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    200  1.59.2.4     yamt 	.pr_input = icmp6_input,
    201  1.59.2.4     yamt 	.pr_output = rip6_output,
    202  1.59.2.4     yamt 	.pr_ctlinput = rip6_ctlinput,
    203  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    204  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    205  1.59.2.4     yamt 	.pr_init = icmp6_init,
    206  1.59.2.4     yamt },
    207  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    208  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    209  1.59.2.4     yamt 	.pr_protocol = IPPROTO_DSTOPTS,
    210  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    211  1.59.2.4     yamt 	.pr_input = dest6_input,
    212  1.59.2.4     yamt },
    213  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    214  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    215  1.59.2.4     yamt 	.pr_protocol = IPPROTO_ROUTING,
    216  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    217  1.59.2.4     yamt 	.pr_input = route6_input,
    218  1.59.2.4     yamt },
    219  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    220  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    221  1.59.2.4     yamt 	.pr_protocol = IPPROTO_FRAGMENT,
    222  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    223  1.59.2.4     yamt 	.pr_input = frag6_input,
    224       1.2   itojun },
    225  1.59.2.3     yamt #ifdef IPSEC
    226  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    227  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    228  1.59.2.4     yamt 	.pr_protocol = IPPROTO_AH,
    229  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    230  1.59.2.4     yamt 	.pr_input = ah6_input,
    231  1.59.2.4     yamt 	.pr_ctlinput = ah6_ctlinput,
    232       1.2   itojun },
    233  1.59.2.3     yamt #ifdef IPSEC_ESP
    234  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    235  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    236  1.59.2.4     yamt 	.pr_protocol = IPPROTO_ESP,
    237  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    238  1.59.2.4     yamt 	.pr_input = esp6_input,
    239  1.59.2.4     yamt 	.pr_ctlinput = esp6_ctlinput,
    240       1.2   itojun },
    241  1.59.2.3     yamt #endif
    242  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    243  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    244  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPCOMP,
    245  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    246  1.59.2.4     yamt 	.pr_input = ipcomp6_input,
    247       1.2   itojun },
    248  1.59.2.3     yamt #endif /* IPSEC */
    249  1.59.2.3     yamt #ifdef FAST_IPSEC
    250  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    251  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    252  1.59.2.4     yamt 	.pr_protocol = IPPROTO_AH,
    253  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    254  1.59.2.4     yamt 	.pr_input = ipsec6_common_input,
    255  1.59.2.4     yamt 	.pr_ctlinput = ah6_ctlinput,
    256  1.59.2.4     yamt },
    257  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    258  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    259  1.59.2.4     yamt 	.pr_protocol = IPPROTO_ESP,
    260  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    261  1.59.2.4     yamt 	.pr_input = ipsec6_common_input,
    262  1.59.2.4     yamt 	.pr_ctlinput = esp6_ctlinput,
    263  1.59.2.4     yamt },
    264  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    265  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    266  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPCOMP,
    267  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    268  1.59.2.4     yamt 	.pr_input = ipsec6_common_input,
    269       1.2   itojun },
    270  1.59.2.3     yamt #endif /* FAST_IPSEC */
    271      1.17   itojun #ifdef INET
    272  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    273  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    274  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPV4,
    275  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    276  1.59.2.4     yamt 	.pr_input = encap6_input,
    277  1.59.2.4     yamt 	.pr_output = rip6_output,
    278  1.59.2.4     yamt 	.pr_ctlinput = encap6_ctlinput,
    279  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    280  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    281  1.59.2.4     yamt 	.pr_init = encap_init,
    282       1.2   itojun },
    283      1.17   itojun #endif
    284  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    285  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    286  1.59.2.4     yamt 	.pr_protocol = IPPROTO_IPV6,
    287  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    288  1.59.2.4     yamt 	.pr_input = encap6_input,
    289  1.59.2.4     yamt 	.pr_output = rip6_output,
    290  1.59.2.4     yamt 	.pr_ctlinput = encap6_ctlinput,
    291  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    292  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    293  1.59.2.4     yamt 	.pr_init = encap_init,
    294       1.2   itojun },
    295  1.59.2.2     yamt #if NETHERIP > 1
    296  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    297  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    298  1.59.2.4     yamt 	.pr_protocol = IPPROTO_ETHERIP,
    299  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    300  1.59.2.4     yamt 	.pr_input = ip6_etherip_input,
    301  1.59.2.4     yamt 	.pr_output = rip6_output,
    302  1.59.2.4     yamt 	.pr_ctlinput = rip6_ctlinput,
    303  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    304  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    305  1.59.2.2     yamt },
    306  1.59.2.2     yamt #endif
    307  1.59.2.1     yamt #if NCARP > 0
    308  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    309  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    310  1.59.2.4     yamt 	.pr_protocol = IPPROTO_CARP,
    311  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR,
    312  1.59.2.4     yamt 	.pr_input = carp6_proto_input,
    313  1.59.2.4     yamt 	.pr_output = rip6_output,
    314  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    315  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    316  1.59.2.1     yamt },
    317  1.59.2.1     yamt #endif /* NCARP */
    318      1.26   itojun #ifdef ISO
    319  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    320  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    321  1.59.2.4     yamt 	.pr_protocol = IPPROTO_EON,
    322  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    323  1.59.2.4     yamt 	.pr_input = encap6_input,
    324  1.59.2.4     yamt 	.pr_output = rip6_output,
    325  1.59.2.4     yamt 	.pr_ctlinput = encap6_ctlinput,
    326  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    327  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    328  1.59.2.4     yamt 	/*XXX*/
    329  1.59.2.4     yamt 	.pr_init = encap_init,
    330      1.26   itojun },
    331      1.26   itojun #endif
    332  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    333  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    334  1.59.2.4     yamt 	.pr_protocol = IPPROTO_PIM,
    335  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    336  1.59.2.4     yamt 	.pr_input = pim6_input,
    337  1.59.2.4     yamt 	.pr_output = rip6_output,
    338  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    339  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    340       1.2   itojun },
    341       1.2   itojun /* raw wildcard */
    342  1.59.2.4     yamt {	.pr_type = SOCK_RAW,
    343  1.59.2.4     yamt 	.pr_domain = &inet6domain,
    344  1.59.2.4     yamt 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    345  1.59.2.4     yamt 	.pr_input = rip6_input,
    346  1.59.2.4     yamt 	.pr_output = rip6_output,
    347  1.59.2.4     yamt 	.pr_ctloutput = rip6_ctloutput,
    348  1.59.2.4     yamt 	.pr_usrreq = rip6_usrreq,
    349  1.59.2.4     yamt 	.pr_init = rip6_init,
    350       1.2   itojun },
    351       1.2   itojun };
    352      1.17   itojun 
    353  1.59.2.2     yamt struct domain inet6domain = {
    354  1.59.2.2     yamt 	.dom_family = AF_INET6, .dom_name = "internet6",
    355  1.59.2.2     yamt 	.dom_init = NULL, .dom_externalize = NULL, .dom_dispose = NULL,
    356  1.59.2.2     yamt 	.dom_protosw = (const struct protosw *)inet6sw,
    357  1.59.2.2     yamt 	.dom_protoswNPROTOSW = (const struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
    358  1.59.2.2     yamt 	.dom_rtattach = rn_inithead,
    359  1.59.2.2     yamt 	.dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3,
    360  1.59.2.2     yamt 	.dom_maxrtkey = sizeof(struct sockaddr_in6),
    361  1.59.2.2     yamt 	.dom_ifattach = in6_domifattach, .dom_ifdetach = in6_domifdetach,
    362  1.59.2.2     yamt 	.dom_ifqueues = { &ip6intrq, NULL },
    363  1.59.2.2     yamt 	.dom_link = { NULL },
    364  1.59.2.4     yamt 	.dom_mowner = MOWNER_INIT("",""),
    365  1.59.2.4     yamt 	.dom_sa_cmpofs = offsetof(struct sockaddr_in6, sin6_addr),
    366  1.59.2.4     yamt 	.dom_sa_cmplen = sizeof(struct in6_addr),
    367  1.59.2.4     yamt 	.dom_rtcache = LIST_HEAD_INITIALIZER(inet6domain.dom_rtcache)
    368  1.59.2.2     yamt };
    369       1.2   itojun 
    370  1.59.2.4     yamt int
    371  1.59.2.4     yamt sockaddr_in6_cmp(const struct sockaddr *lsa, const struct sockaddr *rsa)
    372  1.59.2.4     yamt {
    373  1.59.2.4     yamt 	uint_fast8_t len;
    374  1.59.2.4     yamt 	const uint_fast8_t addrofs = offsetof(struct sockaddr_in6, sin6_addr),
    375  1.59.2.4     yamt 			   addrend = addrofs + sizeof(struct in6_addr);
    376  1.59.2.4     yamt 	int rc;
    377  1.59.2.4     yamt 	const struct sockaddr_in6 *lsin6, *rsin6;
    378  1.59.2.4     yamt 
    379  1.59.2.4     yamt 	lsin6 = satocsin6(lsa);
    380  1.59.2.4     yamt 	rsin6 = satocsin6(rsa);
    381  1.59.2.4     yamt 
    382  1.59.2.4     yamt 	len = MIN(addrend, MIN(lsin6->sin6_len, rsin6->sin6_len));
    383  1.59.2.4     yamt 
    384  1.59.2.4     yamt 	if (len > addrofs &&
    385  1.59.2.4     yamt 	    (rc = memcmp(&lsin6->sin6_addr, &rsin6->sin6_addr,
    386  1.59.2.4     yamt 	                  len - addrofs)) != 0)
    387  1.59.2.4     yamt 		return rc;
    388  1.59.2.4     yamt 
    389  1.59.2.4     yamt 	return lsin6->sin6_len - rsin6->sin6_len;
    390  1.59.2.4     yamt }
    391  1.59.2.4     yamt 
    392       1.2   itojun /*
    393       1.2   itojun  * Internet configuration info
    394       1.2   itojun  */
    395       1.2   itojun #ifndef	IPV6FORWARDING
    396       1.2   itojun #ifdef GATEWAY6
    397       1.2   itojun #define	IPV6FORWARDING	1	/* forward IP6 packets not for us */
    398       1.2   itojun #else
    399       1.2   itojun #define	IPV6FORWARDING	0	/* don't forward IP6 packets not for us */
    400       1.2   itojun #endif /* GATEWAY6 */
    401       1.2   itojun #endif /* !IPV6FORWARDING */
    402       1.2   itojun 
    403       1.2   itojun int	ip6_forwarding = IPV6FORWARDING;	/* act as router? */
    404      1.48   itojun int	ip6_sendredirects = 1;
    405       1.2   itojun int	ip6_defhlim = IPV6_DEFHLIM;
    406       1.2   itojun int	ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
    407       1.2   itojun int	ip6_accept_rtadv = 0;	/* "IPV6FORWARDING ? 0 : 1" is dangerous */
    408       1.2   itojun int	ip6_maxfragpackets = 200;
    409      1.40   itojun int	ip6_maxfrags = 200;
    410       1.2   itojun int	ip6_log_interval = 5;
    411       1.2   itojun int	ip6_hdrnestlimit = 50;	/* appropriate? */
    412       1.2   itojun int	ip6_dad_count = 1;	/* DupAddrDetectionTransmits */
    413       1.2   itojun int	ip6_auto_flowlabel = 1;
    414      1.45   itojun int	ip6_use_deprecated = 1;	/* allow deprecated addr (RFC2462 5.5.4) */
    415       1.9   itojun int	ip6_rr_prune = 5;	/* router renumbering prefix
    416      1.38   itojun 				 * walk list every 5 sec. */
    417  1.59.2.1     yamt int	ip6_mcast_pmtu = 0;	/* enable pMTU discovery for multicast? */
    418      1.55   briggs int	ip6_v6only = 1;
    419      1.11   itojun 
    420       1.2   itojun int	ip6_keepfaith = 0;
    421       1.2   itojun time_t	ip6_log_time = (time_t)0L;
    422       1.2   itojun 
    423       1.2   itojun /* icmp6 */
    424       1.9   itojun /*
    425       1.9   itojun  * BSDI4 defines these variables in in_proto.c...
    426       1.9   itojun  * XXX: what if we don't define INET? Should we define pmtu6_expire
    427       1.9   itojun  * or so? (jinmei (at) kame.net 19990310)
    428       1.9   itojun  */
    429       1.2   itojun int pmtu_expire = 60*10;
    430       1.2   itojun 
    431       1.2   itojun /* raw IP6 parameters */
    432       1.2   itojun /*
    433       1.2   itojun  * Nominal space allocated to a raw ip socket.
    434       1.2   itojun  */
    435       1.2   itojun #define	RIPV6SNDQ	8192
    436       1.2   itojun #define	RIPV6RCVQ	8192
    437       1.2   itojun 
    438       1.2   itojun u_long	rip6_sendspace = RIPV6SNDQ;
    439       1.2   itojun u_long	rip6_recvspace = RIPV6RCVQ;
    440       1.2   itojun 
    441       1.2   itojun /* ICMPV6 parameters */
    442       1.2   itojun int	icmp6_rediraccept = 1;		/* accept and process redirects */
    443       1.2   itojun int	icmp6_redirtimeout = 10 * 60;	/* 10 minutes */
    444      1.18   itojun int	icmp6errppslim = 100;		/* 100pps */
    445      1.10   itojun int	icmp6_nodeinfo = 1;		/* enable/disable NI response */
    446       1.2   itojun 
    447       1.2   itojun /* UDP on IP6 parameters */
    448       1.2   itojun int	udp6_sendspace = 9216;		/* really max datagram size */
    449       1.2   itojun int	udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
    450       1.2   itojun 					/* 40 1K datagrams */
    451