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in_proto.c revision 1.98
      1  1.98  degroote /*	$NetBSD: in_proto.c,v 1.98 2009/09/14 10:36:50 degroote Exp $	*/
      2  1.32    itojun 
      3  1.32    itojun /*
      4  1.32    itojun  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      5  1.32    itojun  * All rights reserved.
      6  1.56    itojun  *
      7  1.32    itojun  * Redistribution and use in source and binary forms, with or without
      8  1.32    itojun  * modification, are permitted provided that the following conditions
      9  1.32    itojun  * are met:
     10  1.32    itojun  * 1. Redistributions of source code must retain the above copyright
     11  1.32    itojun  *    notice, this list of conditions and the following disclaimer.
     12  1.32    itojun  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.32    itojun  *    notice, this list of conditions and the following disclaimer in the
     14  1.32    itojun  *    documentation and/or other materials provided with the distribution.
     15  1.32    itojun  * 3. Neither the name of the project nor the names of its contributors
     16  1.32    itojun  *    may be used to endorse or promote products derived from this software
     17  1.32    itojun  *    without specific prior written permission.
     18  1.56    itojun  *
     19  1.32    itojun  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20  1.32    itojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  1.32    itojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  1.32    itojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23  1.32    itojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  1.32    itojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  1.32    itojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  1.32    itojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  1.32    itojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  1.32    itojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  1.32    itojun  * SUCH DAMAGE.
     30  1.32    itojun  */
     31   1.9       cgd 
     32   1.1       cgd /*
     33   1.8   mycroft  * Copyright (c) 1982, 1986, 1993
     34   1.8   mycroft  *	The Regents of the University of California.  All rights reserved.
     35   1.1       cgd  *
     36   1.1       cgd  * Redistribution and use in source and binary forms, with or without
     37   1.1       cgd  * modification, are permitted provided that the following conditions
     38   1.1       cgd  * are met:
     39   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     40   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     41   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     42   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     43   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     44  1.59       agc  * 3. Neither the name of the University nor the names of its contributors
     45   1.1       cgd  *    may be used to endorse or promote products derived from this software
     46   1.1       cgd  *    without specific prior written permission.
     47   1.1       cgd  *
     48   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     49   1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     50   1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     51   1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     52   1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     53   1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     54   1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     55   1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     56   1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     57   1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     58   1.1       cgd  * SUCH DAMAGE.
     59   1.1       cgd  *
     60  1.18   thorpej  *	@(#)in_proto.c	8.2 (Berkeley) 2/9/95
     61   1.1       cgd  */
     62  1.51     lukem 
     63  1.51     lukem #include <sys/cdefs.h>
     64  1.98  degroote __KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.98 2009/09/14 10:36:50 degroote Exp $");
     65  1.19    scottr 
     66  1.19    scottr #include "opt_mrouting.h"
     67  1.22  jonathan #include "opt_eon.h"			/* ISO CLNL over IP */
     68  1.22  jonathan #include "opt_iso.h"			/* ISO TP tunneled over IP */
     69  1.32    itojun #include "opt_inet.h"
     70  1.33   thorpej #include "opt_ipsec.h"
     71  1.65      manu #include "opt_pim.h"
     72  1.97     pooka #include "opt_gateway.h"
     73   1.1       cgd 
     74   1.5   mycroft #include <sys/param.h>
     75   1.5   mycroft #include <sys/socket.h>
     76   1.5   mycroft #include <sys/protosw.h>
     77   1.5   mycroft #include <sys/domain.h>
     78   1.5   mycroft #include <sys/mbuf.h>
     79   1.1       cgd 
     80   1.8   mycroft #include <net/if.h>
     81   1.8   mycroft #include <net/radix.h>
     82   1.8   mycroft #include <net/route.h>
     83   1.8   mycroft 
     84   1.5   mycroft #include <netinet/in.h>
     85   1.5   mycroft #include <netinet/in_systm.h>
     86   1.8   mycroft #include <netinet/ip.h>
     87   1.8   mycroft #include <netinet/ip_var.h>
     88   1.8   mycroft #include <netinet/ip_icmp.h>
     89  1.78    dyoung #include <netinet/in_ifattach.h>
     90   1.8   mycroft #include <netinet/in_pcb.h>
     91  1.69      yamt #include <netinet/in_proto.h>
     92  1.32    itojun 
     93  1.32    itojun #ifdef INET6
     94  1.32    itojun #ifndef INET
     95  1.32    itojun #include <netinet/in.h>
     96  1.32    itojun #endif
     97  1.32    itojun #include <netinet/ip6.h>
     98  1.32    itojun #endif
     99  1.32    itojun 
    100   1.8   mycroft #include <netinet/igmp_var.h>
    101  1.65      manu #ifdef PIM
    102  1.65      manu #include <netinet/pim_var.h>
    103  1.65      manu #endif
    104   1.8   mycroft #include <netinet/tcp.h>
    105   1.8   mycroft #include <netinet/tcp_fsm.h>
    106   1.8   mycroft #include <netinet/tcp_seq.h>
    107   1.8   mycroft #include <netinet/tcp_timer.h>
    108   1.8   mycroft #include <netinet/tcp_var.h>
    109   1.8   mycroft #include <netinet/tcpip.h>
    110   1.8   mycroft #include <netinet/tcp_debug.h>
    111   1.8   mycroft #include <netinet/udp.h>
    112   1.8   mycroft #include <netinet/udp_var.h>
    113  1.39    itojun #include <netinet/ip_encap.h>
    114  1.79    rpaulo 
    115   1.1       cgd /*
    116   1.1       cgd  * TCP/IP protocol family: IP, ICMP, UDP, TCP.
    117   1.1       cgd  */
    118   1.1       cgd 
    119  1.32    itojun #ifdef IPSEC
    120  1.58    itojun #include <netinet6/ipsec.h>
    121  1.32    itojun #include <netinet6/ah.h>
    122  1.32    itojun #ifdef IPSEC_ESP
    123  1.32    itojun #include <netinet6/esp.h>
    124  1.32    itojun #endif
    125  1.32    itojun #include <netinet6/ipcomp.h>
    126  1.32    itojun #endif /* IPSEC */
    127  1.32    itojun 
    128  1.61  jonathan #ifdef FAST_IPSEC
    129  1.61  jonathan #include <netipsec/ipsec.h>
    130  1.61  jonathan #include <netipsec/key.h>
    131  1.61  jonathan #endif	/* FAST_IPSEC */
    132  1.61  jonathan 
    133   1.1       cgd #ifdef TPIP
    134  1.13  christos #include <netiso/tp_param.h>
    135  1.13  christos #include <netiso/tp_var.h>
    136  1.11   mycroft #endif /* TPIP */
    137   1.1       cgd 
    138   1.1       cgd #ifdef EON
    139  1.13  christos #include <netiso/eonvar.h>
    140   1.8   mycroft #endif /* EON */
    141   1.1       cgd 
    142  1.72  liamjfoy #include "carp.h"
    143  1.72  liamjfoy #if NCARP > 0
    144  1.72  liamjfoy #include <netinet/ip_carp.h>
    145  1.72  liamjfoy #endif
    146  1.72  liamjfoy 
    147  1.98  degroote #include "pfsync.h"
    148  1.98  degroote #if NPFSYNC > 0
    149  1.98  degroote #include <net/pfvar.h>
    150  1.98  degroote #include <net/if_pfsync.h>
    151  1.98  degroote #endif
    152  1.98  degroote 
    153  1.79    rpaulo #include "etherip.h"
    154  1.79    rpaulo #if NETHERIP > 0
    155  1.79    rpaulo #include <netinet/ip_etherip.h>
    156  1.79    rpaulo #endif
    157  1.67       kim 
    158  1.66      matt DOMAIN_DEFINE(inetdomain);	/* forward declare and add to link set */
    159  1.66      matt 
    160  1.94        ad /* Wrappers to acquire kernel_lock. */
    161  1.94        ad 
    162  1.94        ad PR_WRAP_USRREQ(rip_usrreq)
    163  1.94        ad PR_WRAP_USRREQ(udp_usrreq)
    164  1.94        ad PR_WRAP_USRREQ(tcp_usrreq)
    165  1.94        ad 
    166  1.94        ad #define	rip_usrreq 	rip_usrreq_wrapper
    167  1.94        ad #define	udp_usrreq 	udp_usrreq_wrapper
    168  1.94        ad #define	tcp_usrreq 	tcp_usrreq_wrapper
    169  1.94        ad 
    170  1.94        ad PR_WRAP_CTLINPUT(rip_ctlinput)
    171  1.94        ad PR_WRAP_CTLINPUT(udp_ctlinput)
    172  1.94        ad PR_WRAP_CTLINPUT(tcp_ctlinput)
    173  1.94        ad 
    174  1.94        ad #define	rip_ctlinput	rip_ctlinput_wrapper
    175  1.94        ad #define	udp_ctlinput	udp_ctlinput_wrapper
    176  1.94        ad #define	tcp_ctlinput	tcp_ctlinput_wrapper
    177  1.94        ad 
    178  1.94        ad PR_WRAP_CTLOUTPUT(rip_ctloutput)
    179  1.94        ad PR_WRAP_CTLOUTPUT(udp_ctloutput)
    180  1.94        ad PR_WRAP_CTLOUTPUT(tcp_ctloutput)
    181  1.94        ad 
    182  1.94        ad #define	rip_ctloutput	rip_ctloutput_wrapper
    183  1.94        ad #define	udp_ctloutput	udp_ctloutput_wrapper
    184  1.94        ad #define	tcp_ctloutput	tcp_ctloutput_wrapper
    185  1.94        ad 
    186  1.94        ad #if defined(IPSEC) || defined(FAST_IPSEC)
    187  1.94        ad PR_WRAP_CTLINPUT(ah4_ctlinput)
    188  1.94        ad 
    189  1.94        ad #define	ah4_ctlinput	ah4_ctlinput_wrapper
    190  1.94        ad #endif
    191  1.94        ad 
    192  1.94        ad #if defined(IPSEC_ESP) || defined(FAST_IPSEC)
    193  1.94        ad PR_WRAP_CTLINPUT(esp4_ctlinput)
    194  1.94        ad 
    195  1.94        ad #define	esp4_ctlinput	esp4_ctlinput_wrapper
    196  1.94        ad #endif
    197  1.94        ad 
    198  1.94        ad #ifdef TPIP
    199  1.94        ad PR_WRAP_CTLOUTPUT(tp_ctloutput)
    200  1.94        ad 
    201  1.94        ad #define	tp_ctloutput	tp_ctloutput_wrapper
    202  1.94        ad 
    203  1.94        ad PR_WRAP_CTLINPUT(tpip_ctlinput)
    204  1.94        ad 
    205  1.94        ad #define	tpip_ctlinput	tpip_ctlinput_wrapper
    206  1.94        ad #endif
    207  1.94        ad 
    208  1.94        ad #ifdef EON
    209  1.94        ad PR_WRAP_CTLINPUT(eonctlinput)
    210  1.94        ad 
    211  1.94        ad #define	eonctlinput	eonctlinput_wrapper
    212  1.94        ad #endif
    213  1.94        ad 
    214  1.63      matt const struct protosw inetsw[] = {
    215  1.81  liamjfoy {	.pr_domain = &inetdomain,
    216  1.81  liamjfoy 	.pr_init = ip_init,
    217  1.81  liamjfoy 	.pr_output = ip_output,
    218  1.81  liamjfoy 	.pr_slowtimo = ip_slowtimo,
    219  1.81  liamjfoy 	.pr_drain = ip_drain,
    220  1.81  liamjfoy },
    221  1.81  liamjfoy {	.pr_type = SOCK_DGRAM,
    222  1.81  liamjfoy 	.pr_domain = &inetdomain,
    223  1.81  liamjfoy 	.pr_protocol = IPPROTO_UDP,
    224  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
    225  1.81  liamjfoy 	.pr_input = udp_input,
    226  1.81  liamjfoy 	.pr_ctlinput = udp_ctlinput,
    227  1.81  liamjfoy 	.pr_ctloutput = udp_ctloutput,
    228  1.81  liamjfoy 	.pr_usrreq = udp_usrreq,
    229  1.81  liamjfoy 	.pr_init = udp_init,
    230  1.81  liamjfoy },
    231  1.81  liamjfoy {	.pr_type = SOCK_STREAM,
    232  1.81  liamjfoy 	.pr_domain = &inetdomain,
    233  1.81  liamjfoy 	.pr_protocol = IPPROTO_TCP,
    234  1.81  liamjfoy 	.pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF,
    235  1.81  liamjfoy 	.pr_input = tcp_input,
    236  1.81  liamjfoy 	.pr_ctlinput = tcp_ctlinput,
    237  1.81  liamjfoy 	.pr_ctloutput = tcp_ctloutput,
    238  1.81  liamjfoy 	.pr_usrreq = tcp_usrreq,
    239  1.81  liamjfoy 	.pr_init = tcp_init,
    240  1.81  liamjfoy 	.pr_slowtimo = tcp_slowtimo,
    241  1.81  liamjfoy 	.pr_drain = tcp_drain,
    242  1.81  liamjfoy },
    243  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    244  1.81  liamjfoy 	.pr_domain = &inetdomain,
    245  1.81  liamjfoy 	.pr_protocol = IPPROTO_RAW,
    246  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
    247  1.81  liamjfoy 	.pr_input = rip_input,
    248  1.81  liamjfoy 	.pr_output = rip_output,
    249  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    250  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    251  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    252  1.81  liamjfoy },
    253  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    254  1.81  liamjfoy 	.pr_domain = &inetdomain,
    255  1.81  liamjfoy 	.pr_protocol = IPPROTO_ICMP,
    256  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    257  1.81  liamjfoy 	.pr_input = icmp_input,
    258  1.81  liamjfoy 	.pr_output = rip_output,
    259  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    260  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    261  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    262  1.81  liamjfoy 	.pr_init = icmp_init,
    263   1.8   mycroft },
    264  1.83  liamjfoy #ifdef GATEWAY
    265  1.83  liamjfoy {	.pr_domain = &inetdomain,
    266  1.83  liamjfoy 	.pr_protocol = IPPROTO_IP,
    267  1.83  liamjfoy 	.pr_slowtimo = ipflow_slowtimo,
    268  1.96     pooka 	.pr_init = ipflow_poolinit,
    269  1.83  liamjfoy },
    270  1.83  liamjfoy #endif /* GATEWAY */
    271  1.32    itojun #ifdef IPSEC
    272  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    273  1.81  liamjfoy 	.pr_domain = &inetdomain,
    274  1.81  liamjfoy 	.pr_protocol = IPPROTO_AH,
    275  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    276  1.81  liamjfoy 	.pr_input = ah4_input,
    277  1.81  liamjfoy 	.pr_ctlinput = ah4_ctlinput,
    278  1.93   thorpej 	.pr_init = ah4_init,
    279  1.32    itojun },
    280  1.32    itojun #ifdef IPSEC_ESP
    281  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    282  1.81  liamjfoy 	.pr_domain = &inetdomain,
    283  1.81  liamjfoy 	.pr_protocol = IPPROTO_ESP,
    284  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    285  1.81  liamjfoy 	.pr_input = esp4_input,
    286  1.81  liamjfoy 	.pr_ctlinput = esp4_ctlinput,
    287  1.93   thorpej 	.pr_init = esp4_init,
    288  1.81  liamjfoy },
    289  1.81  liamjfoy #endif /* IPSEC_ESP */
    290  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    291  1.82  liamjfoy 	.pr_domain = &inetdomain,
    292  1.81  liamjfoy 	.pr_protocol = IPPROTO_IPCOMP,
    293  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    294  1.81  liamjfoy 	.pr_input = ipcomp4_input,
    295  1.93   thorpej 	.pr_init = ipcomp4_init,
    296  1.32    itojun },
    297  1.32    itojun #endif /* IPSEC */
    298  1.61  jonathan #ifdef FAST_IPSEC
    299  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    300  1.81  liamjfoy 	.pr_domain = &inetdomain,
    301  1.81  liamjfoy 	.pr_protocol = IPPROTO_AH,
    302  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    303  1.81  liamjfoy 	.pr_input = ipsec4_common_input,
    304  1.81  liamjfoy 	.pr_ctlinput = ah4_ctlinput,
    305  1.81  liamjfoy },
    306  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    307  1.81  liamjfoy 	.pr_domain = &inetdomain,
    308  1.81  liamjfoy 	.pr_protocol = IPPROTO_ESP,
    309  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    310  1.81  liamjfoy 	.pr_input = ipsec4_common_input,
    311  1.81  liamjfoy 	.pr_ctlinput = esp4_ctlinput,
    312  1.81  liamjfoy },
    313  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    314  1.81  liamjfoy 	.pr_domain = &inetdomain,
    315  1.81  liamjfoy 	.pr_protocol = IPPROTO_IPCOMP,
    316  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    317  1.81  liamjfoy 	.pr_input = ipsec4_common_input,
    318  1.61  jonathan },
    319  1.61  jonathan #endif /* FAST_IPSEC */
    320  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    321  1.81  liamjfoy 	.pr_domain = &inetdomain,
    322  1.81  liamjfoy 	.pr_protocol = IPPROTO_IPV4,
    323  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    324  1.81  liamjfoy 	.pr_input = encap4_input,
    325  1.81  liamjfoy 	.pr_output = rip_output,
    326  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    327  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    328  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    329  1.81  liamjfoy 	.pr_init = encap_init,
    330  1.32    itojun },
    331  1.32    itojun #ifdef INET6
    332  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    333  1.81  liamjfoy 	.pr_domain = &inetdomain,
    334  1.81  liamjfoy 	.pr_protocol = IPPROTO_IPV6,
    335  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    336  1.81  liamjfoy 	.pr_input = encap4_input,
    337  1.81  liamjfoy 	.pr_output = rip_output,
    338  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    339  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    340  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    341  1.81  liamjfoy 	.pr_init = encap_init,
    342  1.32    itojun },
    343  1.32    itojun #endif /* INET6 */
    344  1.79    rpaulo #if NETHERIP > 0
    345  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    346  1.81  liamjfoy 	.pr_domain = &inetdomain,
    347  1.81  liamjfoy 	.pr_protocol = IPPROTO_ETHERIP,
    348  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    349  1.81  liamjfoy 	.pr_input = ip_etherip_input,
    350  1.81  liamjfoy 	.pr_output = rip_output,
    351  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    352  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    353  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    354  1.67       kim },
    355  1.81  liamjfoy #endif /* NETHERIP > 0 */
    356  1.72  liamjfoy #if NCARP > 0
    357  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    358  1.81  liamjfoy 	.pr_domain = &inetdomain,
    359  1.81  liamjfoy 	.pr_protocol = IPPROTO_CARP,
    360  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR,
    361  1.81  liamjfoy 	.pr_input = carp_proto_input,
    362  1.81  liamjfoy 	.pr_output = rip_output,
    363  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    364  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    365  1.72  liamjfoy },
    366  1.81  liamjfoy #endif /* NCARP > 0 */
    367  1.98  degroote #if NPFSYNC > 0
    368  1.98  degroote {	.pr_type = SOCK_RAW,
    369  1.98  degroote 	.pr_domain = &inetdomain,
    370  1.98  degroote 	.pr_protocol = IPPROTO_PFSYNC,
    371  1.98  degroote 	.pr_flags	 = PR_ATOMIC|PR_ADDR,
    372  1.98  degroote 	.pr_input	 = pfsync_input,
    373  1.98  degroote 	.pr_output	 = rip_output,
    374  1.98  degroote 	.pr_ctloutput = rip_ctloutput,
    375  1.98  degroote 	.pr_usrreq	 = rip_usrreq,
    376  1.98  degroote },
    377  1.98  degroote #endif /* NPFSYNC > 0 */
    378  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    379  1.81  liamjfoy 	.pr_domain = &inetdomain,
    380  1.81  liamjfoy 	.pr_protocol = IPPROTO_IGMP,
    381  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    382  1.81  liamjfoy 	.pr_input = igmp_input,
    383  1.81  liamjfoy 	.pr_output = rip_output,
    384  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    385  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    386  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    387  1.81  liamjfoy 	.pr_fasttimo = igmp_fasttimo,
    388  1.81  liamjfoy 	.pr_slowtimo = igmp_slowtimo,
    389  1.92   thorpej 	.pr_init = igmp_init,
    390   1.1       cgd },
    391  1.65      manu #ifdef PIM
    392  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    393  1.81  liamjfoy 	.pr_domain = &inetdomain,
    394  1.81  liamjfoy 	.pr_protocol = IPPROTO_PIM,
    395  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    396  1.81  liamjfoy 	.pr_input = pim_input,
    397  1.81  liamjfoy 	.pr_output = rip_output,
    398  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    399  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    400  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    401  1.65      manu },
    402  1.65      manu #endif /* PIM */
    403   1.1       cgd #ifdef TPIP
    404  1.81  liamjfoy {	.pr_type = SOCK_SEQPACKET,
    405  1.81  liamjfoy 	.pr_domain = &inetdomain,
    406  1.81  liamjfoy 	.pr_protocol = IPPROTO_TP,
    407  1.81  liamjfoy 	.pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS,
    408  1.81  liamjfoy 	.pr_input = tpip_input,
    409  1.81  liamjfoy 	.pr_ctloutput = tp_ctloutput,
    410  1.81  liamjfoy 	.pr_ctlinput = tpip_ctlinput,
    411  1.81  liamjfoy 	.pr_usrreq = tp_usrreq,
    412  1.81  liamjfoy 	.pr_init = tp_init,
    413  1.81  liamjfoy 	.pr_slowtimo = tp_slowtimo,
    414  1.81  liamjfoy 	.pr_drain = tp_drain,
    415   1.1       cgd },
    416  1.11   mycroft #endif /* TPIP */
    417  1.45    itojun #ifdef ISO
    418   1.1       cgd /* EON (ISO CLNL over IP) */
    419   1.1       cgd #ifdef EON
    420  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    421  1.81  liamjfoy 	.pr_domain = &inetdomain,
    422  1.81  liamjfoy 	.pr_protocol = IPPROTO_EON,
    423  1.81  liamjfoy 	.pr_flags = PR_LASTHDR,
    424  1.81  liamjfoy 	.pr_input = eoninput,
    425  1.81  liamjfoy 	.pr_ctlinput = eonctlinput,
    426  1.81  liamjfoy 	.pr_init = eonprotoinit,
    427   1.4   hpeyerl },
    428  1.45    itojun #else
    429  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    430  1.81  liamjfoy 	.pr_domain = &inetdomain,
    431  1.81  liamjfoy 	.pr_protocol = IPPROTO_EON,
    432  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    433  1.81  liamjfoy 	.pr_input = encap4_input,
    434  1.81  liamjfoy 	.pr_output = rip_output,
    435  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    436  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    437  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    438  1.81  liamjfoy 	.pr_init = encap_init,
    439  1.45    itojun },
    440  1.11   mycroft #endif /* EON */
    441  1.45    itojun #endif /* ISO */
    442  1.11   mycroft /* raw wildcard */
    443  1.81  liamjfoy {	.pr_type = SOCK_RAW,
    444  1.81  liamjfoy 	.pr_domain = &inetdomain,
    445  1.81  liamjfoy 	.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
    446  1.81  liamjfoy 	.pr_input = rip_input,
    447  1.81  liamjfoy 	.pr_output = rip_output,
    448  1.81  liamjfoy 	.pr_ctloutput = rip_ctloutput,
    449  1.81  liamjfoy 	.pr_ctlinput = rip_ctlinput,
    450  1.81  liamjfoy 	.pr_usrreq = rip_usrreq,
    451  1.81  liamjfoy 	.pr_init = rip_init,
    452   1.1       cgd },
    453   1.1       cgd };
    454   1.1       cgd 
    455  1.73      matt extern struct ifqueue ipintrq;
    456  1.73      matt 
    457  1.89    dyoung const struct sockaddr_in in_any = {
    458  1.89    dyoung 	  .sin_len = sizeof(struct sockaddr_in)
    459  1.89    dyoung 	, .sin_family = AF_INET
    460  1.89    dyoung 	, .sin_port = 0
    461  1.90    dyoung 	, .sin_addr = {.s_addr = 0 /* INADDR_ANY */}
    462  1.89    dyoung };
    463  1.89    dyoung 
    464  1.73      matt struct domain inetdomain = {
    465  1.80    dyoung 	.dom_family = PF_INET, .dom_name = "internet", .dom_init = NULL,
    466  1.80    dyoung 	.dom_externalize = NULL, .dom_dispose = NULL,
    467  1.80    dyoung 	.dom_protosw = inetsw,
    468  1.87    dyoung 	.dom_protoswNPROTOSW = &inetsw[__arraycount(inetsw)],
    469  1.80    dyoung 	.dom_rtattach = rn_inithead,
    470  1.95     pooka 	.dom_rtoffset = 32,
    471  1.95     pooka 	.dom_maxrtkey = sizeof(struct ip_pack4),
    472  1.78    dyoung #ifdef IPSELSRC
    473  1.80    dyoung 	.dom_ifattach = in_domifattach,
    474  1.80    dyoung 	.dom_ifdetach = in_domifdetach,
    475  1.78    dyoung #else
    476  1.80    dyoung 	.dom_ifattach = NULL,
    477  1.80    dyoung 	.dom_ifdetach = NULL,
    478  1.78    dyoung #endif
    479  1.80    dyoung 	.dom_ifqueues = { &ipintrq, NULL },
    480  1.80    dyoung 	.dom_link = { NULL },
    481  1.80    dyoung 	.dom_mowner = MOWNER_INIT("",""),
    482  1.86    dyoung 	.dom_sa_cmpofs = offsetof(struct sockaddr_in, sin_addr),
    483  1.86    dyoung 	.dom_sa_cmplen = sizeof(struct in_addr),
    484  1.89    dyoung 	.dom_sa_any = (const struct sockaddr *)&in_any,
    485  1.89    dyoung 	.dom_sockaddr_const_addr = sockaddr_in_const_addr,
    486  1.89    dyoung 	.dom_sockaddr_addr = sockaddr_in_addr,
    487  1.84    dyoung 	.dom_rtcache = LIST_HEAD_INITIALIZER(inetdomain.dom_rtcache)
    488  1.73      matt };
    489  1.38   darrenr 
    490  1.38   darrenr u_char	ip_protox[IPPROTO_MAX];
    491  1.36   thorpej 
    492  1.40    itojun int icmperrppslim = 100;			/* 100pps */
    493  1.84    dyoung 
    494  1.89    dyoung static void
    495  1.89    dyoung sockaddr_in_addrlen(const struct sockaddr *sa, socklen_t *slenp)
    496  1.89    dyoung {
    497  1.89    dyoung 	socklen_t slen;
    498  1.89    dyoung 
    499  1.89    dyoung 	if (slenp == NULL)
    500  1.89    dyoung 		return;
    501  1.89    dyoung 
    502  1.89    dyoung 	slen = sockaddr_getlen(sa);
    503  1.89    dyoung 	*slenp = (socklen_t)MIN(sizeof(struct in_addr),
    504  1.89    dyoung 	    slen - MIN(slen, offsetof(struct sockaddr_in, sin_addr)));
    505  1.89    dyoung }
    506  1.89    dyoung 
    507  1.89    dyoung const void *
    508  1.89    dyoung sockaddr_in_const_addr(const struct sockaddr *sa, socklen_t *slenp)
    509  1.89    dyoung {
    510  1.89    dyoung 	const struct sockaddr_in *sin;
    511  1.89    dyoung 
    512  1.89    dyoung 	sockaddr_in_addrlen(sa, slenp);
    513  1.89    dyoung 	sin = (const struct sockaddr_in *)sa;
    514  1.89    dyoung 	return &sin->sin_addr;
    515  1.89    dyoung }
    516  1.89    dyoung 
    517  1.89    dyoung void *
    518  1.89    dyoung sockaddr_in_addr(struct sockaddr *sa, socklen_t *slenp)
    519  1.89    dyoung {
    520  1.89    dyoung 	struct sockaddr_in *sin;
    521  1.89    dyoung 
    522  1.89    dyoung 	sockaddr_in_addrlen(sa, slenp);
    523  1.89    dyoung 	sin = (struct sockaddr_in *)sa;
    524  1.89    dyoung 	return &sin->sin_addr;
    525  1.89    dyoung }
    526  1.89    dyoung 
    527  1.84    dyoung int
    528  1.84    dyoung sockaddr_in_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2)
    529  1.84    dyoung {
    530  1.84    dyoung 	uint_fast8_t len;
    531  1.84    dyoung 	const uint_fast8_t addrofs = offsetof(struct sockaddr_in, sin_addr),
    532  1.84    dyoung 			   addrend = addrofs + sizeof(struct in_addr);
    533  1.84    dyoung 	int rc;
    534  1.84    dyoung 	const struct sockaddr_in *sin1, *sin2;
    535  1.84    dyoung 
    536  1.84    dyoung 	sin1 = satocsin(sa1);
    537  1.84    dyoung 	sin2 = satocsin(sa2);
    538  1.84    dyoung 
    539  1.84    dyoung 	len = MIN(addrend, MIN(sin1->sin_len, sin2->sin_len));
    540  1.84    dyoung 
    541  1.84    dyoung 	if (len > addrofs &&
    542  1.84    dyoung 	     (rc = memcmp(&sin1->sin_addr, &sin2->sin_addr,
    543  1.84    dyoung 	                  len - addrofs)) != 0)
    544  1.84    dyoung 		return rc;
    545  1.84    dyoung 
    546  1.84    dyoung 	return sin1->sin_len - sin2->sin_len;
    547  1.84    dyoung }
    548