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