175 lines
5.4 KiB
C
175 lines
5.4 KiB
C
/* $NetBSD: in_proto.c,v 1.24 1998/07/15 17:39:20 thorpej Exp $ */
|
|
|
|
/*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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 "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 <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/igmp_var.h>
|
|
#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>
|
|
/*
|
|
* TCP/IP protocol family: IP, ICMP, UDP, TCP.
|
|
*/
|
|
|
|
#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 */
|
|
|
|
#ifdef MROUTING
|
|
#include <netinet/ip_mroute.h>
|
|
#endif /* MROUTING */
|
|
|
|
extern struct domain inetdomain;
|
|
|
|
struct protosw inetsw[] = {
|
|
{ 0, &inetdomain, 0, 0,
|
|
0, ip_output, 0, 0,
|
|
0,
|
|
ip_init, 0, ip_slowtimo, ip_drain, ip_sysctl
|
|
},
|
|
{ SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR,
|
|
udp_input, 0, udp_ctlinput, ip_ctloutput,
|
|
udp_usrreq,
|
|
udp_init, 0, 0, 0, udp_sysctl
|
|
},
|
|
{ SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD,
|
|
tcp_input, 0, tcp_ctlinput, tcp_ctloutput,
|
|
tcp_usrreq,
|
|
tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR,
|
|
rip_input, rip_output, 0, rip_ctloutput,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR,
|
|
icmp_input, rip_output, 0, rip_ctloutput,
|
|
rip_usrreq,
|
|
0, 0, 0, 0, icmp_sysctl
|
|
},
|
|
#ifdef MROUTING
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IPIP, PR_ATOMIC|PR_ADDR,
|
|
ipip_input, rip_output, 0, rip_ctloutput,
|
|
rip_usrreq, /* XXX */
|
|
0, 0, 0, 0,
|
|
},
|
|
#endif /* MROUTING */
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR,
|
|
igmp_input, rip_output, 0, rip_ctloutput,
|
|
rip_usrreq,
|
|
igmp_init, igmp_fasttimo, igmp_slowtimo, 0,
|
|
},
|
|
#ifdef TPIP
|
|
{ SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD,
|
|
tpip_input, 0, tpip_ctlinput, tp_ctloutput,
|
|
tp_usrreq,
|
|
tp_init, 0, tp_slowtimo, tp_drain,
|
|
},
|
|
#endif /* TPIP */
|
|
/* EON (ISO CLNL over IP) */
|
|
#ifdef EON
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_EON, 0,
|
|
eoninput, 0, eonctlinput, 0,
|
|
0,
|
|
eonprotoinit, 0, 0, 0,
|
|
},
|
|
#endif /* EON */
|
|
#ifdef NSIP
|
|
{ SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR,
|
|
idpip_input, NULL, nsip_ctlinput, 0,
|
|
rip_usrreq,
|
|
0, 0, 0, 0,
|
|
},
|
|
#endif /* NSIP */
|
|
/* raw wildcard */
|
|
{ SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR,
|
|
rip_input, rip_output, 0, rip_ctloutput,
|
|
rip_usrreq,
|
|
rip_init, 0, 0, 0,
|
|
},
|
|
};
|
|
|
|
struct domain inetdomain =
|
|
{ AF_INET, "internet", 0, 0, 0,
|
|
inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
|
|
rn_inithead, 32, sizeof(struct sockaddr_in) };
|
|
|
|
#define TCP_SYN_HASH_SIZE 293
|
|
#define TCP_SYN_BUCKET_SIZE 35
|
|
|
|
int tcp_syn_cache_size = TCP_SYN_HASH_SIZE;
|
|
int tcp_syn_cache_limit = TCP_SYN_HASH_SIZE*TCP_SYN_BUCKET_SIZE;
|
|
int tcp_syn_bucket_limit = 3*TCP_SYN_BUCKET_SIZE;
|
|
struct syn_cache_head tcp_syn_cache[TCP_SYN_HASH_SIZE];
|
|
int tcp_syn_cache_interval = 8; /* runs timer every 4 seconds */
|
|
int tcp_syn_cache_timeo = TCPTV_KEEP_INIT;
|