in_proto.c

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    1 /*
    2  * Copyright (c) 1982, 1986, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by the University of
   16  *      California, Berkeley and its contributors.
   17  * 4. Neither the name of the University nor the names of its contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  *
   33  *      @(#)in_proto.c  8.2 (Berkeley) 2/9/95
   34  * $FreeBSD$
   35  */
   36 
   37 #include "opt_ipdivert.h"
   38 #include "opt_ipx.h"
   39 
   40 #include <sys/param.h>
   41 #include <sys/kernel.h>
   42 #include <sys/socket.h>
   43 #include <sys/domain.h>
   44 #include <sys/protosw.h>
   45 #include <sys/sysctl.h>
   46 
   47 #include <net/if.h>
   48 #include <net/route.h>
   49 
   50 #include <netinet/in.h>
   51 #include <netinet/in_systm.h>
   52 #include <netinet/ip.h>
   53 #include <netinet/ip_var.h>
   54 #include <netinet/ip_icmp.h>
   55 #include <netinet/igmp_var.h>
   56 #include <netinet/tcp.h>
   57 #include <netinet/tcp_timer.h>
   58 #include <netinet/tcp_var.h>
   59 #include <netinet/udp.h>
   60 #include <netinet/udp_var.h>
   61 /*
   62  * TCP/IP protocol family: IP, ICMP, UDP, TCP.
   63  */
   64 
   65 #ifdef IPXIP
   66 #include <netipx/ipx_ip.h>
   67 #endif
   68 
   69 #ifdef NSIP
   70 #include <netns/ns.h>
   71 #include <netns/ns_if.h>
   72 #endif
   73 
   74 extern  struct domain inetdomain;
   75 static  struct pr_usrreqs nousrreqs;
   76 
   77 struct protosw inetsw[] = {
   78 { 0,            &inetdomain,    0,              0,
   79   0,            0,              0,              0,
   80   0,
   81   ip_init,      0,              ip_slowtimo,    ip_drain,
   82   &nousrreqs
   83 },
   84 { SOCK_DGRAM,   &inetdomain,    IPPROTO_UDP,    PR_ATOMIC|PR_ADDR,
   85   udp_input,    0,              udp_ctlinput,   ip_ctloutput,
   86   0,
   87   udp_init,     0,              0,              0,
   88   &udp_usrreqs
   89 },
   90 { SOCK_STREAM,  &inetdomain,    IPPROTO_TCP,
   91         PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
   92   tcp_input,    0,              tcp_ctlinput,   tcp_ctloutput,
   93   0,
   94   tcp_init,     tcp_fasttimo,   tcp_slowtimo,   tcp_drain,
   95   &tcp_usrreqs
   96 },
   97 { SOCK_RAW,     &inetdomain,    IPPROTO_RAW,    PR_ATOMIC|PR_ADDR,
   98   rip_input,    0,              rip_ctlinput,   rip_ctloutput,
   99   0,
  100   0,            0,              0,              0,
  101   &rip_usrreqs
  102 },
  103 { SOCK_RAW,     &inetdomain,    IPPROTO_ICMP,   PR_ATOMIC|PR_ADDR,
  104   icmp_input,   0,              0,              rip_ctloutput,
  105   0,
  106   0,            0,              0,              0,
  107   &rip_usrreqs
  108 },
  109 { SOCK_RAW,     &inetdomain,    IPPROTO_IGMP,   PR_ATOMIC|PR_ADDR,
  110   igmp_input,   0,              0,              rip_ctloutput,
  111   0,
  112   igmp_init,    igmp_fasttimo,  igmp_slowtimo,  0,
  113   &rip_usrreqs
  114 },
  115 { SOCK_RAW,     &inetdomain,    IPPROTO_RSVP,   PR_ATOMIC|PR_ADDR,
  116   rsvp_input,   0,              0,              rip_ctloutput,
  117   0,
  118   0,            0,              0,              0,
  119   &rip_usrreqs
  120 },
  121 { SOCK_RAW,     &inetdomain,    IPPROTO_IPIP,   PR_ATOMIC|PR_ADDR,
  122   ipip_input,   0,              0,              rip_ctloutput,
  123   0,
  124   0,            0,              0,              0,
  125   &rip_usrreqs
  126 },
  127 #ifdef IPDIVERT
  128 { SOCK_RAW,     &inetdomain,    IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR,
  129   div_input,    0,              0,              ip_ctloutput,
  130   0,
  131   div_init,     0,              0,              0,
  132   &div_usrreqs,
  133 },
  134 #endif
  135 #ifdef TPIP
  136 { SOCK_SEQPACKET,&inetdomain,   IPPROTO_TP,     PR_CONNREQUIRED|PR_WANTRCVD,
  137   tpip_input,   0,              tpip_ctlinput,  tp_ctloutput,
  138   tp_usrreq,
  139   tp_init,      0,              tp_slowtimo,    tp_drain,
  140 },
  141 #endif
  142 /* EON (ISO CLNL over IP) */
  143 #ifdef EON
  144 { SOCK_RAW,     &inetdomain,    IPPROTO_EON,    0,
  145   eoninput,     0,              eonctlinput,            0,
  146   0,
  147   eonprotoinit, 0,              0,              0,
  148 },
  149 #endif
  150 #ifdef IPXIP
  151 { SOCK_RAW,     &inetdomain,    IPPROTO_IDP,    PR_ATOMIC|PR_ADDR,
  152   ipxip_input,  0,              ipxip_ctlinput, 0,
  153   0,
  154   0,            0,              0,              0,
  155   &rip_usrreqs
  156 },
  157 #endif
  158 #ifdef NSIP
  159 { SOCK_RAW,     &inetdomain,    IPPROTO_IDP,    PR_ATOMIC|PR_ADDR,
  160   idpip_input,  0,              nsip_ctlinput,  0,
  161   0,
  162   0,            0,              0,              0,
  163   &rip_usrreqs
  164 },
  165 #endif
  166         /* raw wildcard */
  167 { SOCK_RAW,     &inetdomain,    0,              PR_ATOMIC|PR_ADDR,
  168   rip_input,    0,              0,              rip_ctloutput,
  169   0,
  170   rip_init,     0,              0,              0,
  171   &rip_usrreqs
  172 },
  173 };
  174 
  175 extern int in_inithead __P((void **, int));
  176 
  177 struct domain inetdomain =
  178     { AF_INET, "internet", 0, 0, 0, 
  179       inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0,
  180       in_inithead, 32, sizeof(struct sockaddr_in)
  181     };
  182 
  183 DOMAIN_SET(inet);
  184 
  185 SYSCTL_NODE(_net,      PF_INET,         inet,   CTLFLAG_RW, 0,
  186         "Internet Family");
  187 
  188 SYSCTL_NODE(_net_inet, IPPROTO_IP,      ip,     CTLFLAG_RW, 0,  "IP");
  189 SYSCTL_NODE(_net_inet, IPPROTO_ICMP,    icmp,   CTLFLAG_RW, 0,  "ICMP");
  190 SYSCTL_NODE(_net_inet, IPPROTO_UDP,     udp,    CTLFLAG_RW, 0,  "UDP");
  191 SYSCTL_NODE(_net_inet, IPPROTO_TCP,     tcp,    CTLFLAG_RW, 0,  "TCP");
  192 SYSCTL_NODE(_net_inet, IPPROTO_IGMP,    igmp,   CTLFLAG_RW, 0,  "IGMP");
  193 SYSCTL_NODE(_net_inet, IPPROTO_RAW,     raw,    CTLFLAG_RW, 0,  "RAW");
  194 #ifdef IPDIVERT
  195 SYSCTL_NODE(_net_inet, IPPROTO_DIVERT,  div,    CTLFLAG_RW, 0,  "DIVERT");
  196 #endif
  197

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FreeBSD/Linux Kernel Cross Reference sys/netinet/in_proto.c

FreeBSD/Linux Kernel Cross Reference
sys/netinet/in_proto.c