HardenedBSD/sys/netinet/in_proto.c

 /*
  * 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	8.1 (Berkeley) 6/10/93
  * $Id: in_proto.c,v 1.3 1994/08/02 07:48:23 davidg Exp $
  */

 #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
 void	idpip_input(), nsip_ctlinput();
 #endif

 #ifdef TPIP
 void	tpip_input(), tpip_ctlinput(), tp_ctloutput();
 int	tp_init(), tp_slowtimo(), tp_drain(), tp_usrreq();
 #endif

 #ifdef EON
 void	eoninput(), eonctlinput(), eonprotoinit();
 #endif /* EON */

 #ifdef MROUTING
 void multiencap_decap(struct mbuf *);
 #endif

 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,
 },
 { 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
 },
 { 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,
 },
 { SOCK_RAW,	&inetdomain,	IPPROTO_RSVP,	PR_ATOMIC|PR_ADDR,
   rip_input,	rip_output,	0,		rip_ctloutput,
   rip_usrreq,
   0,		0,		0,		0,
 },
#ifdef MROUTING
 { SOCK_RAW,	&inetdomain,	IPPROTO_ENCAP,	PR_ATOMIC|PR_ADDR,
   multiencap_decap, rip_output, 0,		rip_ctloutput,
   rip_usrreq,
   0,		0,		0,		0,
 },
#endif /* MROUTING */
#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
/* EON (ISO CLNL over IP) */
#ifdef EON
{ SOCK_RAW,	&inetdomain,	IPPROTO_EON,	0,
  eoninput,	0,		eonctlinput,		0,
  0,
  eonprotoinit,	0,		0,		0,
},
#endif
#ifdef NSIP
{ SOCK_RAW,	&inetdomain,	IPPROTO_IDP,	PR_ATOMIC|PR_ADDR,
  idpip_input,	rip_output,	nsip_ctlinput,	0,
  rip_usrreq,
  0,		0,		0,		0,
},
#endif
	/* 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) };

#include "imp.h"
#if NIMP > 0
extern	struct domain impdomain;
int	rimp_output(), hostslowtimo();

struct protosw impsw[] = {
{ SOCK_RAW,	&impdomain,	0,		PR_ATOMIC|PR_ADDR,
  0,		rimp_output,	0,		0,
  rip_usrreq,
  0,		0,		hostslowtimo,	0,
},
};

struct domain impdomain =
    { AF_IMPLINK, "imp", 0, 0, 0,
      impsw, &impsw[sizeof (impsw)/sizeof(impsw[0])] };
#endif

#if 0
#include "hy.h"
#if NHY > 0
/*
 * HYPERchannel protocol family: raw interface.
 */
int	rhy_output();
extern	struct domain hydomain;

struct protosw hysw[] = {
{ SOCK_RAW,	&hydomain,	0,		PR_ATOMIC|PR_ADDR,
  0,		rhy_output,	0,		0,
  rip_usrreq,
  0,		0,		0,		0,
},
};

struct domain hydomain =
    { AF_HYLINK, "hy", 0, 0, 0, hysw, &hysw[sizeof (hysw)/sizeof(hysw[0])] };
#endif
#endif