The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

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

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    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  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      @(#)in_proto.c  8.2 (Berkeley) 2/9/95
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD: releng/9.0/sys/netinet/in_proto.c 223963 2011-07-12 19:29:29Z tuexen $");
   34 
   35 #include "opt_ipx.h"
   36 #include "opt_mrouting.h"
   37 #include "opt_ipsec.h"
   38 #include "opt_inet.h"
   39 #include "opt_inet6.h"
   40 #include "opt_pf.h"
   41 #include "opt_sctp.h"
   42 #include "opt_mpath.h"
   43 
   44 #include <sys/param.h>
   45 #include <sys/systm.h>
   46 #include <sys/kernel.h>
   47 #include <sys/socket.h>
   48 #include <sys/domain.h>
   49 #include <sys/proc.h>
   50 #include <sys/protosw.h>
   51 #include <sys/queue.h>
   52 #include <sys/sysctl.h>
   53 
   54 /*
   55  * While this file provides the domain and protocol switch tables for IPv4, it
   56  * also provides the sysctl node declarations for net.inet.* often shared with
   57  * IPv6 for common features or by upper layer protocols.  In case of no IPv4
   58  * support compile out everything but these sysctl nodes.
   59  */
   60 #ifdef INET
   61 #include <net/if.h>
   62 #include <net/route.h>
   63 #ifdef RADIX_MPATH
   64 #include <net/radix_mpath.h>
   65 #endif
   66 #include <net/vnet.h>
   67 #endif /* INET */
   68 
   69 #if defined(INET) || defined(INET6)
   70 #include <netinet/in.h>
   71 #endif
   72 
   73 #ifdef INET
   74 #include <netinet/in_systm.h>
   75 #include <netinet/in_var.h>
   76 #include <netinet/ip.h>
   77 #include <netinet/ip_var.h>
   78 #include <netinet/ip_icmp.h>
   79 #include <netinet/igmp_var.h>
   80 #include <netinet/tcp.h>
   81 #include <netinet/tcp_timer.h>
   82 #include <netinet/tcp_var.h>
   83 #include <netinet/udp.h>
   84 #include <netinet/udp_var.h>
   85 #include <netinet/ip_encap.h>
   86 
   87 /*
   88  * TCP/IP protocol family: IP, ICMP, UDP, TCP.
   89  */
   90 
   91 static struct pr_usrreqs nousrreqs;
   92 
   93 #ifdef IPSEC
   94 #include <netipsec/ipsec.h>
   95 #endif /* IPSEC */
   96 
   97 #ifdef SCTP
   98 #include <netinet/in_pcb.h>
   99 #include <netinet/sctp_pcb.h>
  100 #include <netinet/sctp.h>
  101 #include <netinet/sctp_var.h>
  102 #endif /* SCTP */
  103 
  104 #ifdef DEV_PFSYNC
  105 #include <net/pfvar.h>
  106 #include <net/if_pfsync.h>
  107 #endif
  108 
  109 FEATURE(inet, "Internet Protocol version 4");
  110 
  111 extern  struct domain inetdomain;
  112 
  113 /* Spacer for loadable protocols. */
  114 #define IPPROTOSPACER                           \
  115 {                                               \
  116         .pr_domain =            &inetdomain,    \
  117         .pr_protocol =          PROTO_SPACER,   \
  118         .pr_usrreqs =           &nousrreqs      \
  119 }
  120 
  121 struct protosw inetsw[] = {
  122 {
  123         .pr_type =              0,
  124         .pr_domain =            &inetdomain,
  125         .pr_protocol =          IPPROTO_IP,
  126         .pr_init =              ip_init,
  127 #ifdef VIMAGE
  128         .pr_destroy =           ip_destroy,
  129 #endif
  130         .pr_slowtimo =          ip_slowtimo,
  131         .pr_drain =             ip_drain,
  132         .pr_usrreqs =           &nousrreqs
  133 },
  134 {
  135         .pr_type =              SOCK_DGRAM,
  136         .pr_domain =            &inetdomain,
  137         .pr_protocol =          IPPROTO_UDP,
  138         .pr_flags =             PR_ATOMIC|PR_ADDR,
  139         .pr_input =             udp_input,
  140         .pr_ctlinput =          udp_ctlinput,
  141         .pr_ctloutput =         udp_ctloutput,
  142         .pr_init =              udp_init,
  143 #ifdef VIMAGE
  144         .pr_destroy =           udp_destroy,
  145 #endif
  146         .pr_usrreqs =           &udp_usrreqs
  147 },
  148 {
  149         .pr_type =              SOCK_STREAM,
  150         .pr_domain =            &inetdomain,
  151         .pr_protocol =          IPPROTO_TCP,
  152         .pr_flags =             PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD,
  153         .pr_input =             tcp_input,
  154         .pr_ctlinput =          tcp_ctlinput,
  155         .pr_ctloutput =         tcp_ctloutput,
  156         .pr_init =              tcp_init,
  157 #ifdef VIMAGE
  158         .pr_destroy =           tcp_destroy,
  159 #endif
  160         .pr_slowtimo =          tcp_slowtimo,
  161         .pr_drain =             tcp_drain,
  162         .pr_usrreqs =           &tcp_usrreqs
  163 },
  164 #ifdef SCTP
  165 { 
  166         .pr_type =              SOCK_SEQPACKET,
  167         .pr_domain =            &inetdomain,
  168         .pr_protocol =          IPPROTO_SCTP,
  169         .pr_flags =             PR_WANTRCVD,
  170         .pr_input =             sctp_input,
  171         .pr_ctlinput =          sctp_ctlinput,
  172         .pr_ctloutput =         sctp_ctloutput,
  173         .pr_init =              sctp_init,
  174 #ifdef VIMAGE
  175         .pr_destroy =           sctp_finish,
  176 #endif
  177         .pr_drain =             sctp_drain,
  178         .pr_usrreqs =           &sctp_usrreqs
  179 },
  180 { 
  181         .pr_type =              SOCK_STREAM,
  182         .pr_domain =            &inetdomain,
  183         .pr_protocol =          IPPROTO_SCTP,
  184         .pr_flags =             PR_WANTRCVD,
  185         .pr_input =             sctp_input,
  186         .pr_ctlinput =          sctp_ctlinput,
  187         .pr_ctloutput =         sctp_ctloutput,
  188         .pr_drain =             sctp_drain,
  189         .pr_usrreqs =           &sctp_usrreqs
  190 },
  191 #endif /* SCTP */
  192 {
  193         .pr_type =              SOCK_RAW,
  194         .pr_domain =            &inetdomain,
  195         .pr_protocol =          IPPROTO_RAW,
  196         .pr_flags =             PR_ATOMIC|PR_ADDR,
  197         .pr_input =             rip_input,
  198         .pr_ctlinput =          rip_ctlinput,
  199         .pr_ctloutput =         rip_ctloutput,
  200         .pr_usrreqs =           &rip_usrreqs
  201 },
  202 {
  203         .pr_type =              SOCK_RAW,
  204         .pr_domain =            &inetdomain,
  205         .pr_protocol =          IPPROTO_ICMP,
  206         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  207         .pr_input =             icmp_input,
  208         .pr_ctloutput =         rip_ctloutput,
  209         .pr_usrreqs =           &rip_usrreqs
  210 },
  211 {
  212         .pr_type =              SOCK_RAW,
  213         .pr_domain =            &inetdomain,
  214         .pr_protocol =          IPPROTO_IGMP,
  215         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  216         .pr_input =             igmp_input,
  217         .pr_ctloutput =         rip_ctloutput,
  218         .pr_fasttimo =          igmp_fasttimo,
  219         .pr_slowtimo =          igmp_slowtimo,
  220         .pr_usrreqs =           &rip_usrreqs
  221 },
  222 {
  223         .pr_type =              SOCK_RAW,
  224         .pr_domain =            &inetdomain,
  225         .pr_protocol =          IPPROTO_RSVP,
  226         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  227         .pr_input =             rsvp_input,
  228         .pr_ctloutput =         rip_ctloutput,
  229         .pr_usrreqs =           &rip_usrreqs
  230 },
  231 #ifdef IPSEC
  232 {
  233         .pr_type =              SOCK_RAW,
  234         .pr_domain =            &inetdomain,
  235         .pr_protocol =          IPPROTO_AH,
  236         .pr_flags =             PR_ATOMIC|PR_ADDR,
  237         .pr_input =             ah4_input,
  238         .pr_ctlinput =          ah4_ctlinput,
  239         .pr_usrreqs =           &nousrreqs
  240 },
  241 {
  242         .pr_type =              SOCK_RAW,
  243         .pr_domain =            &inetdomain,
  244         .pr_protocol =          IPPROTO_ESP,
  245         .pr_flags =             PR_ATOMIC|PR_ADDR,
  246         .pr_input =             esp4_input,
  247         .pr_ctlinput =          esp4_ctlinput,
  248         .pr_usrreqs =           &nousrreqs
  249 },
  250 {
  251         .pr_type =              SOCK_RAW,
  252         .pr_domain =            &inetdomain,
  253         .pr_protocol =          IPPROTO_IPCOMP,
  254         .pr_flags =             PR_ATOMIC|PR_ADDR,
  255         .pr_input =             ipcomp4_input,
  256         .pr_usrreqs =           &nousrreqs
  257 },
  258 #endif /* IPSEC */
  259 {
  260         .pr_type =              SOCK_RAW,
  261         .pr_domain =            &inetdomain,
  262         .pr_protocol =          IPPROTO_IPV4,
  263         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  264         .pr_input =             encap4_input,
  265         .pr_ctloutput =         rip_ctloutput,
  266         .pr_init =              encap_init,
  267         .pr_usrreqs =           &rip_usrreqs
  268 },
  269 {
  270         .pr_type =              SOCK_RAW,
  271         .pr_domain =            &inetdomain,
  272         .pr_protocol =          IPPROTO_MOBILE,
  273         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  274         .pr_input =             encap4_input,
  275         .pr_ctloutput =         rip_ctloutput,
  276         .pr_init =              encap_init,
  277         .pr_usrreqs =           &rip_usrreqs
  278 },
  279 {
  280         .pr_type =              SOCK_RAW,
  281         .pr_domain =            &inetdomain,
  282         .pr_protocol =          IPPROTO_ETHERIP,
  283         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  284         .pr_input =             encap4_input,
  285         .pr_ctloutput =         rip_ctloutput,
  286         .pr_init =              encap_init,
  287         .pr_usrreqs =           &rip_usrreqs
  288 },
  289 {
  290         .pr_type =              SOCK_RAW,
  291         .pr_domain =            &inetdomain,
  292         .pr_protocol =          IPPROTO_GRE,
  293         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  294         .pr_input =             encap4_input,
  295         .pr_ctloutput =         rip_ctloutput,
  296         .pr_init =              encap_init,
  297         .pr_usrreqs =           &rip_usrreqs
  298 },
  299 # ifdef INET6
  300 {
  301         .pr_type =              SOCK_RAW,
  302         .pr_domain =            &inetdomain,
  303         .pr_protocol =          IPPROTO_IPV6,
  304         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  305         .pr_input =             encap4_input,
  306         .pr_ctloutput =         rip_ctloutput,
  307         .pr_init =              encap_init,
  308         .pr_usrreqs =           &rip_usrreqs
  309 },
  310 #endif
  311 {
  312         .pr_type =              SOCK_RAW,
  313         .pr_domain =            &inetdomain,
  314         .pr_protocol =          IPPROTO_PIM,
  315         .pr_flags =             PR_ATOMIC|PR_ADDR|PR_LASTHDR,
  316         .pr_input =             encap4_input,
  317         .pr_ctloutput =         rip_ctloutput,
  318         .pr_usrreqs =           &rip_usrreqs
  319 },
  320 #ifdef DEV_PFSYNC
  321 {
  322         .pr_type =              SOCK_RAW,
  323         .pr_domain =            &inetdomain,
  324         .pr_protocol =          IPPROTO_PFSYNC,
  325         .pr_flags =             PR_ATOMIC|PR_ADDR,
  326         .pr_input =             pfsync_input,
  327         .pr_ctloutput =         rip_ctloutput,
  328         .pr_usrreqs =           &rip_usrreqs
  329 },
  330 #endif  /* DEV_PFSYNC */
  331 /* Spacer n-times for loadable protocols. */
  332 IPPROTOSPACER,
  333 IPPROTOSPACER,
  334 IPPROTOSPACER,
  335 IPPROTOSPACER,
  336 IPPROTOSPACER,
  337 IPPROTOSPACER,
  338 IPPROTOSPACER,
  339 IPPROTOSPACER,
  340 /* raw wildcard */
  341 {
  342         .pr_type =              SOCK_RAW,
  343         .pr_domain =            &inetdomain,
  344         .pr_flags =             PR_ATOMIC|PR_ADDR,
  345         .pr_input =             rip_input,
  346         .pr_ctloutput =         rip_ctloutput,
  347         .pr_init =              rip_init,
  348 #ifdef VIMAGE
  349         .pr_destroy =           rip_destroy,
  350 #endif
  351         .pr_usrreqs =           &rip_usrreqs
  352 },
  353 };
  354 
  355 extern int in_inithead(void **, int);
  356 extern int in_detachhead(void **, int);
  357 
  358 struct domain inetdomain = {
  359         .dom_family =           AF_INET,
  360         .dom_name =             "internet",
  361         .dom_protosw =          inetsw,
  362         .dom_protoswNPROTOSW =  &inetsw[sizeof(inetsw)/sizeof(inetsw[0])],
  363 #ifdef RADIX_MPATH
  364         .dom_rtattach =         rn4_mpath_inithead,
  365 #else
  366         .dom_rtattach =         in_inithead,
  367 #endif
  368 #ifdef VIMAGE
  369         .dom_rtdetach =         in_detachhead,
  370 #endif
  371         .dom_rtoffset =         32,
  372         .dom_maxrtkey =         sizeof(struct sockaddr_in),
  373         .dom_ifattach =         in_domifattach,
  374         .dom_ifdetach =         in_domifdetach
  375 };
  376 
  377 VNET_DOMAIN_SET(inet);
  378 #endif /* INET */
  379 
  380 SYSCTL_NODE(_net,      PF_INET,         inet,   CTLFLAG_RW, 0,
  381         "Internet Family");
  382 
  383 SYSCTL_NODE(_net_inet, IPPROTO_IP,      ip,     CTLFLAG_RW, 0,  "IP");
  384 SYSCTL_NODE(_net_inet, IPPROTO_ICMP,    icmp,   CTLFLAG_RW, 0,  "ICMP");
  385 SYSCTL_NODE(_net_inet, IPPROTO_UDP,     udp,    CTLFLAG_RW, 0,  "UDP");
  386 SYSCTL_NODE(_net_inet, IPPROTO_TCP,     tcp,    CTLFLAG_RW, 0,  "TCP");
  387 #ifdef SCTP
  388 SYSCTL_NODE(_net_inet, IPPROTO_SCTP,    sctp,   CTLFLAG_RW, 0,  "SCTP");
  389 #endif
  390 SYSCTL_NODE(_net_inet, IPPROTO_IGMP,    igmp,   CTLFLAG_RW, 0,  "IGMP");
  391 #ifdef IPSEC
  392 /* XXX no protocol # to use, pick something "reserved" */
  393 SYSCTL_NODE(_net_inet, 253,             ipsec,  CTLFLAG_RW, 0,  "IPSEC");
  394 SYSCTL_NODE(_net_inet, IPPROTO_AH,      ah,     CTLFLAG_RW, 0,  "AH");
  395 SYSCTL_NODE(_net_inet, IPPROTO_ESP,     esp,    CTLFLAG_RW, 0,  "ESP");
  396 SYSCTL_NODE(_net_inet, IPPROTO_IPCOMP,  ipcomp, CTLFLAG_RW, 0,  "IPCOMP");
  397 SYSCTL_NODE(_net_inet, IPPROTO_IPIP,    ipip,   CTLFLAG_RW, 0,  "IPIP");
  398 #endif /* IPSEC */
  399 SYSCTL_NODE(_net_inet, IPPROTO_RAW,     raw,    CTLFLAG_RW, 0,  "RAW");
  400 #ifdef DEV_PFSYNC
  401 SYSCTL_NODE(_net_inet, IPPROTO_PFSYNC,  pfsync, CTLFLAG_RW, 0,  "PFSYNC");
  402 #endif

Cache object: a7bee9f479790f94b07ea921b7fa6fd1


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.