307 lines
9.2 KiB
C
307 lines
9.2 KiB
C
/* $NetBSD: in_proto.c,v 1.71 2005/12/11 12:24:57 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the project nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)in_proto.c 8.2 (Berkeley) 2/9/95
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.71 2005/12/11 12:24:57 christos Exp $");
|
|
|
|
#include "opt_mrouting.h"
|
|
#include "opt_eon.h" /* ISO CLNL over IP */
|
|
#include "opt_iso.h" /* ISO TP tunneled over IP */
|
|
#include "opt_ns.h" /* NSIP: XNS tunneled over IP */
|
|
#include "opt_inet.h"
|
|
#include "opt_ipsec.h"
|
|
#include "opt_pim.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/mbuf.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/radix.h>
|
|
#include <net/route.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/ip_icmp.h>
|
|
#include <netinet/in_pcb.h>
|
|
#include <netinet/in_proto.h>
|
|
|
|
#ifdef INET6
|
|
#ifndef INET
|
|
#include <netinet/in.h>
|
|
#endif
|
|
#include <netinet/ip6.h>
|
|
#endif
|
|
|
|
#include <netinet/igmp_var.h>
|
|
#ifdef PIM
|
|
#include <netinet/pim_var.h>
|
|
#endif
|
|
#include <netinet/tcp.h>
|
|
#include <netinet/tcp_fsm.h>
|
|
#include <netinet/tcp_seq.h>
|
|
#include <netinet/tcp_timer.h>
|
|
#include <netinet/tcp_var.h>
|
|
#include <netinet/tcpip.h>
|
|
#include <netinet/tcp_debug.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/udp_var.h>
|
|
#include <netinet/ip_encap.h>
|
|
/*
|
|
* TCP/IP protocol family: IP, ICMP, UDP, TCP.
|
|
*/
|
|
|
|
#ifdef IPSEC
|
|
#include <netinet6/ipsec.h>
|
|
#include <netinet6/ah.h>
|
|
#ifdef IPSEC_ESP
|
|
#include <netinet6/esp.h>
|
|
#endif
|
|
#include <netinet6/ipcomp.h>
|
|
#endif /* IPSEC */
|
|
|
|
#ifdef FAST_IPSEC
|
|
#include <netipsec/ipsec.h>
|
|
#include <netipsec/key.h>
|
|
#endif /* FAST_IPSEC */
|
|
|
|
#ifdef NSIP
|
|
#include <netns/ns_var.h>
|
|
#include <netns/idp_var.h>
|
|
#endif /* NSIP */
|
|
|
|
#ifdef TPIP
|
|
#include <netiso/tp_param.h>
|
|
#include <netiso/tp_var.h>
|
|
#endif /* TPIP */
|
|
|
|
#ifdef EON
|
|
#include <netiso/eonvar.h>
|
|
#endif /* EON */
|
|
|
|
#include "gre.h"
|
|
#if NGRE > 0
|
|
#include <netinet/ip_gre.h>
|
|
#endif
|
|
|
|
#include "bridge.h"
|
|
|
|
DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */
|
|
|
|
const struct protosw inetsw[] = {
|
|
{ 0, &inetdomain, 0, 0,
|
|
0, ip_output, 0, 0,
|
|
0,
|
|
ip_init, 0, ip_slowtimo, ip_drain, NULL
|
|
},
|
|
{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PURGEIF,
|
|
udp_input, 0, udp_ctlinput, udp_ctloutput,
|
|
udp_usrreq,
|
|
udp_init, 0, 0, 0, NULL
|
|
},
|
|
{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF,
|
|
tcp_input, 0, tcp_ctlinput, tcp_ctloutput,
|
|
tcp_usrreq,
|
|
tcp_init, 0, tcp_slowtimo, tcp_drain, NULL
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR|PR_PURGEIF,
|
|
rip_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
icmp_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
icmp_init, 0, 0, 0, NULL
|
|
},
|
|
#ifdef IPSEC
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
|
|
ah4_input, 0, ah4_ctlinput, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
#ifdef IPSEC_ESP
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
|
|
esp4_input,
|
|
0, esp4_ctlinput, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
#endif
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
|
|
ipcomp4_input,
|
|
0, 0, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
#endif /* IPSEC */
|
|
#ifdef FAST_IPSEC
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
|
|
ipsec4_common_input, 0, ah4_ctlinput, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
|
|
ipsec4_common_input, 0, esp4_ctlinput, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR,
|
|
ipsec4_common_input, 0, 0, 0,
|
|
0,
|
|
0, 0, 0, 0, NULL
|
|
},
|
|
#endif /* FAST_IPSEC */
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
encap4_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq, /*XXX*/
|
|
encap_init, 0, 0, 0,
|
|
},
|
|
#ifdef INET6
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
encap4_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq, /*XXX*/
|
|
encap_init, 0, 0, 0,
|
|
},
|
|
#endif /* INET6 */
|
|
#if NBRIDGE > 0
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_ETHERIP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
encap4_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
encap_init, 0, 0, 0,
|
|
},
|
|
#endif
|
|
#if NGRE > 0
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
gre_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
#endif /* NGRE > 0 */
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
igmp_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
NULL, igmp_fasttimo, igmp_slowtimo, 0,
|
|
},
|
|
#ifdef PIM
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
pim_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
NULL, 0, 0, 0,
|
|
},
|
|
#endif /* PIM */
|
|
#ifdef TPIP
|
|
{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS,
|
|
tpip_input, 0, tpip_ctlinput, tp_ctloutput,
|
|
tp_usrreq,
|
|
tp_init, 0, tp_slowtimo, tp_drain,
|
|
},
|
|
#endif /* TPIP */
|
|
#ifdef ISO
|
|
/* EON (ISO CLNL over IP) */
|
|
#ifdef EON
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR,
|
|
eoninput, 0, eonctlinput, 0,
|
|
0,
|
|
eonprotoinit, 0, 0, 0,
|
|
},
|
|
#else
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
encap4_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq, /*XXX*/
|
|
encap_init, 0, 0, 0,
|
|
},
|
|
#endif /* EON */
|
|
#endif /* ISO */
|
|
#ifdef NSIP
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
idpip_input, NULL, nsip_ctlinput, 0,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
#endif /* NSIP */
|
|
/* raw wildcard */
|
|
{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR,
|
|
rip_input, rip_output, rip_ctlinput, rip_ctloutput,
|
|
rip_usrreq,
|
|
rip_init, 0, 0, 0,
|
|
},
|
|
};
|
|
|
|
struct domain inetdomain =
|
|
{ PF_INET, "internet", 0, 0, 0,
|
|
inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])],
|
|
rn_inithead, 32, sizeof(struct sockaddr_in) };
|
|
|
|
u_char ip_protox[IPPROTO_MAX];
|
|
|
|
int icmperrppslim = 100; /* 100pps */
|