398 lines
12 KiB
C
398 lines
12 KiB
C
/* $OpenBSD: in_proto.c,v 1.104 2024/04/14 20:46:27 bluhm Exp $ */
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/* $NetBSD: in_proto.c,v 1.14 1996/02/18 18:58:32 christos Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)COPYRIGHT 1.1 (NRL) 17 January 1995
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*
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* NRL grants permission for redistribution and use in source and binary
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* forms, with or without modification, of the software and documentation
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* created at NRL provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgements:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* This product includes software developed at the Information
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* Technology Division, US Naval Research Laboratory.
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* 4. Neither the name of the NRL nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THE SOFTWARE PROVIDED BY NRL IS PROVIDED BY NRL AND CONTRIBUTORS ``AS
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* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NRL OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation
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* are those of the authors and should not be interpreted as representing
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* official policies, either expressed or implied, of the US Naval
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* Research Laboratory (NRL).
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*/
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/domain.h>
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#include <sys/mbuf.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/route.h>
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#include <net/rtable.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <netinet/ip_icmp.h>
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#include <netinet/in_pcb.h>
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#ifdef INET6
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#include <netinet/ip6.h>
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#endif
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#include <netinet/igmp_var.h>
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#include <netinet/tcp.h>
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#include <netinet/tcp_timer.h>
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#include <netinet/tcp_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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/*
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* TCP/IP protocol family: IP, ICMP, UDP, TCP.
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*/
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#include "gif.h"
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#if NGIF > 0
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#include <net/if_gif.h>
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#endif
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#ifdef INET6
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#include <netinet6/ip6_var.h>
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#endif /* INET6 */
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#ifdef IPSEC
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#include <netinet/ip_ipsp.h>
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#endif
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#include <netinet/ip_ether.h>
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#include <netinet/ip_ipip.h>
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#include "gre.h"
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#if NGRE > 0
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#include <netinet/ip_gre.h>
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#include <net/if_gre.h>
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#endif
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#include "carp.h"
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#if NCARP > 0
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#include <netinet/ip_carp.h>
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#endif
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#include "pfsync.h"
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#if NPFSYNC > 0
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#include <net/pfvar.h>
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#include <net/if_pfsync.h>
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#endif
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#include "pf.h"
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#if NPF > 0
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#include <netinet/ip_divert.h>
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#endif
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#include "etherip.h"
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#if NETHERIP > 0
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#include <net/if_etherip.h>
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#endif
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u_char ip_protox[IPPROTO_MAX];
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const struct protosw inetsw[] = {
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{
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.pr_domain = &inetdomain,
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.pr_init = ip_init,
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.pr_slowtimo = ip_slowtimo,
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.pr_sysctl = ip_sysctl
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},
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{
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.pr_type = SOCK_DGRAM,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_UDP,
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.pr_flags = PR_ATOMIC|PR_ADDR|PR_SPLICE,
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.pr_input = udp_input,
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.pr_ctlinput = udp_ctlinput,
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.pr_ctloutput = ip_ctloutput,
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.pr_usrreqs = &udp_usrreqs,
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.pr_init = udp_init,
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.pr_sysctl = udp_sysctl
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},
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{
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.pr_type = SOCK_STREAM,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_TCP,
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.pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_ABRTACPTDIS|PR_SPLICE,
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.pr_input = tcp_input,
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.pr_ctlinput = tcp_ctlinput,
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.pr_ctloutput = tcp_ctloutput,
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.pr_usrreqs = &tcp_usrreqs,
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.pr_init = tcp_init,
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.pr_slowtimo = tcp_slowtimo,
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.pr_sysctl = tcp_sysctl
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},
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_RAW,
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.pr_flags = PR_ATOMIC|PR_ADDR|PR_MPINPUT,
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.pr_input = rip_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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},
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_ICMP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = icmp_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_init = icmp_init,
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.pr_sysctl = icmp_sysctl
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},
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_IPV4,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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#if NGIF > 0
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.pr_input = in_gif_input,
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#else
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.pr_input = ipip_input,
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#endif
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = ipip_sysctl,
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.pr_init = ipip_init
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},
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#ifdef INET6
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_IPV6,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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#if NGIF > 0
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.pr_input = in_gif_input,
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#else
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.pr_input = ipip_input,
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#endif
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs, /* XXX */
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},
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#endif
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#if defined(MPLS) && NGIF > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_MPLS,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = in_gif_input,
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.pr_usrreqs = &rip_usrreqs,
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},
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#endif /* MPLS && GIF */
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_IGMP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = igmp_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_init = igmp_init,
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.pr_fasttimo = igmp_fasttimo,
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.pr_slowtimo = igmp_slowtimo,
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.pr_sysctl = igmp_sysctl
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},
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#ifdef IPSEC
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_AH,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = ah46_input,
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.pr_ctlinput = ah4_ctlinput,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = ah_sysctl
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},
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_ESP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = esp46_input,
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.pr_ctlinput = esp4_ctlinput,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = esp_sysctl
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},
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_IPCOMP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = ipcomp46_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = ipcomp_sysctl
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},
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#endif /* IPSEC */
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#if NGRE > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_GRE,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = gre_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &gre_usrreqs,
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.pr_sysctl = gre_sysctl
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},
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#endif /* NGRE > 0 */
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#if NCARP > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_CARP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = carp_proto_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = carp_sysctl
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},
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#endif /* NCARP > 0 */
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#if NPFSYNC > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_PFSYNC,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = pfsync_input4,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = pfsync_sysctl
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},
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#endif /* NPFSYNC > 0 */
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#if NPF > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_DIVERT,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &divert_usrreqs,
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.pr_init = divert_init,
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.pr_sysctl = divert_sysctl
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},
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#endif /* NPF > 0 */
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#if NETHERIP > 0
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{
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_protocol = IPPROTO_ETHERIP,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_input = ip_etherip_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_sysctl = etherip_sysctl
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},
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#endif /* NETHERIP */
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{
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/* raw wildcard */
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.pr_type = SOCK_RAW,
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.pr_domain = &inetdomain,
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.pr_flags = PR_ATOMIC|PR_ADDR|PR_MPINPUT,
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.pr_input = rip_input,
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.pr_ctloutput = rip_ctloutput,
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.pr_usrreqs = &rip_usrreqs,
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.pr_init = rip_init
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}
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};
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const struct domain inetdomain = {
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.dom_family = AF_INET,
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.dom_name = "inet",
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.dom_init = in_init,
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.dom_protosw = inetsw,
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.dom_protoswNPROTOSW = &inetsw[nitems(inetsw)],
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.dom_sasize = sizeof(struct sockaddr_in),
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.dom_rtoffset = offsetof(struct sockaddr_in, sin_addr),
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.dom_maxplen = 32
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};
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