FreeBSD/Linux Kernel Cross Reference
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  8.2 (Berkeley) 2/9/95
     * $FreeBSD: src/sys/netinet/in_proto.c,v 1.33.2.2 1999/09/05 08:18:21 peter Exp $
     */
    
    #include "opt_tcpdebug.h"
    
    #include <sys/param.h>
    #include <sys/queue.h>
    #include <sys/kernel.h>
    #include <sys/socket.h>
    #include <sys/socketvar.h>
    #include <sys/domain.h>
    #include <sys/mbuf.h>
    #include <sys/protosw.h>
    #include <sys/sysctl.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>
    #ifdef TCPDEBUG
    #include <netinet/tcp_debug.h>
    #endif
    #include <netinet/udp.h>
    #include <netinet/udp_var.h>
    /*
     * TCP/IP protocol family: IP, ICMP, UDP, TCP.
     */
    
    #ifdef IPXIP
    #include <netipx/ipx.h>
    #include <netipx/ipx_ip.h>
    #endif
    
    #ifdef NSIP
    #include <netns/ns.h>
    #include <netns/ns_if.h>
    #endif
    
    #ifdef TPIP
    void    tpip_input(), tpip_ctlinput(), tp_init(), tp_slowtimo(), tp_drain();
    int     tp_ctloutput(), tp_usrreq();
    #endif
    
    #ifdef EON
    void    eoninput(), eonctlinput(), eonprotoinit();
    #endif /* EON */
    
    extern  struct domain inetdomain;
    
    struct protosw inetsw[] = {
    { 0,            &inetdomain,    0,              0,
      0,            0,              0,              0,
      0,
     ip_init,      0,              ip_slowtimo,    ip_drain
   },
   { SOCK_DGRAM,   &inetdomain,    IPPROTO_UDP,    PR_ATOMIC|PR_ADDR,
     udp_input,    0,              udp_ctlinput,   ip_ctloutput,
     udp_usrreq,
     udp_init
   },
   { SOCK_STREAM,  &inetdomain,    IPPROTO_TCP,
           PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
     tcp_input,    0,              tcp_ctlinput,   tcp_ctloutput,
     0,
     tcp_init,     tcp_fasttimo,   tcp_slowtimo,   tcp_drain,
     &tcp_usrreqs
   },
   { SOCK_RAW,     &inetdomain,    IPPROTO_RAW,    PR_ATOMIC|PR_ADDR,
     rip_input,    0,              0,              rip_ctloutput,
     rip_usrreq,
     0,            0,              0,              0,
   },
   { SOCK_RAW,     &inetdomain,    IPPROTO_ICMP,   PR_ATOMIC|PR_ADDR,
     icmp_input,   0,              0,              rip_ctloutput,
     rip_usrreq
   },
   { SOCK_RAW,     &inetdomain,    IPPROTO_IGMP,   PR_ATOMIC|PR_ADDR,
     igmp_input,   0,              0,              rip_ctloutput,
     rip_usrreq,
     igmp_init,    igmp_fasttimo,  igmp_slowtimo
   },
   { SOCK_RAW,     &inetdomain,    IPPROTO_RSVP,   PR_ATOMIC|PR_ADDR,
     rsvp_input,   0,              0,              rip_ctloutput,
     rip_usrreq,
     0,            0,              0,              0,
   },
   { SOCK_RAW,     &inetdomain,    IPPROTO_IPIP,   PR_ATOMIC|PR_ADDR,
     ipip_input,   0,              0,              rip_ctloutput,
     rip_usrreq,
     0,            0,              0,              0,
   },
   #ifdef IPDIVERT
   { SOCK_RAW,     &inetdomain,    IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR,
     div_input,    0,              0,              ip_ctloutput,
     div_usrreq,
     div_init,     0,              0,              0,
   },
   #endif
   #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 IPXIP
   { SOCK_RAW,     &inetdomain,    IPPROTO_IDP,    PR_ATOMIC|PR_ADDR,
     ipxip_input,  0,              ipxip_ctlinput, 0,
     rip_usrreq,
     0,            0,              0,              0,
   },
   #endif
   #ifdef NSIP
   { SOCK_RAW,     &inetdomain,    IPPROTO_IDP,    PR_ATOMIC|PR_ADDR,
     idpip_input,  0,              nsip_ctlinput,  0,
     rip_usrreq,
     0,            0,              0,              0,
   },
   #endif
           /* raw wildcard */
   { SOCK_RAW,     &inetdomain,    0,              PR_ATOMIC|PR_ADDR,
     rip_input,    0,              0,              rip_ctloutput,
     rip_usrreq,
     rip_init,     0,              0,              0,
   },
   };
   
   extern int in_inithead(void **, int);
   
   struct domain inetdomain =
       { AF_INET, "internet", 0, 0, 0, 
         inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
         in_inithead, 32, sizeof(struct sockaddr_in)
       };
   
   DOMAIN_SET(inet);
   
   SYSCTL_NODE(_net,      PF_INET,         inet,   CTLFLAG_RW, 0,
           "Internet Family");
   
   SYSCTL_NODE(_net_inet, IPPROTO_IP,      ip,     CTLFLAG_RW, 0,  "IP");
   SYSCTL_NODE(_net_inet, IPPROTO_ICMP,    icmp,   CTLFLAG_RW, 0,  "ICMP");
   SYSCTL_NODE(_net_inet, IPPROTO_UDP,     udp,    CTLFLAG_RW, 0,  "UDP");
   SYSCTL_NODE(_net_inet, IPPROTO_TCP,     tcp,    CTLFLAG_RW, 0,  "TCP");
   SYSCTL_NODE(_net_inet, IPPROTO_IGMP,    igmp,   CTLFLAG_RW, 0,  "IGMP");
   #ifdef IPDIVERT
   SYSCTL_NODE(_net_inet, IPPROTO_DIVERT,  div,    CTLFLAG_RW, 0,  "DIVERT");
   #endif
   

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