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1c79356b | 1 | /* |
5d5c5d0d A |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
3 | * | |
8f6c56a5 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
1c79356b | 5 | * |
8f6c56a5 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the License | |
10 | * may not be used to create, or enable the creation or redistribution of, | |
11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
12 | * circumvent, violate, or enable the circumvention or violation of, any | |
13 | * terms of an Apple operating system software license agreement. | |
14 | * | |
15 | * Please obtain a copy of the License at | |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
17 | * | |
18 | * The Original Code and all software distributed under the License are | |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
23 | * Please see the License for the specific language governing rights and | |
8ad349bb | 24 | * limitations under the License. |
8f6c56a5 A |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
1c79356b A |
27 | */ |
28 | /* | |
29 | * Copyright (c) 1982, 1986, 1993 | |
30 | * The Regents of the University of California. All rights reserved. | |
31 | * | |
32 | * Redistribution and use in source and binary forms, with or without | |
33 | * modification, are permitted provided that the following conditions | |
34 | * are met: | |
35 | * 1. Redistributions of source code must retain the above copyright | |
36 | * notice, this list of conditions and the following disclaimer. | |
37 | * 2. Redistributions in binary form must reproduce the above copyright | |
38 | * notice, this list of conditions and the following disclaimer in the | |
39 | * documentation and/or other materials provided with the distribution. | |
40 | * 3. All advertising materials mentioning features or use of this software | |
41 | * must display the following acknowledgement: | |
42 | * This product includes software developed by the University of | |
43 | * California, Berkeley and its contributors. | |
44 | * 4. Neither the name of the University nor the names of its contributors | |
45 | * may be used to endorse or promote products derived from this software | |
46 | * without specific prior written permission. | |
47 | * | |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
58 | * SUCH DAMAGE. | |
59 | * | |
60 | * @(#)in_proto.c 8.2 (Berkeley) 2/9/95 | |
61 | */ | |
62 | ||
1c79356b A |
63 | #include <sys/param.h> |
64 | #include <sys/kernel.h> | |
65 | #include <sys/socket.h> | |
66 | #include <sys/domain.h> | |
67 | #include <sys/protosw.h> | |
9bccf70c | 68 | #include <sys/queue.h> |
1c79356b | 69 | #include <sys/sysctl.h> |
91447636 | 70 | #include <sys/mbuf.h> |
1c79356b | 71 | |
1c79356b A |
72 | #include <net/if.h> |
73 | #include <net/route.h> | |
74 | ||
75 | #include <netinet/in.h> | |
76 | #include <netinet/in_systm.h> | |
77 | #include <netinet/ip.h> | |
78 | #include <netinet/ip_var.h> | |
1c79356b A |
79 | #include <netinet/ip_icmp.h> |
80 | #include <netinet/igmp_var.h> | |
81 | #include <netinet/tcp.h> | |
82 | #include <netinet/tcp_timer.h> | |
83 | #include <netinet/tcp_var.h> | |
84 | #include <netinet/tcpip.h> | |
85 | #include <netinet/udp.h> | |
86 | #include <netinet/udp_var.h> | |
9bccf70c | 87 | #include <netinet/ip_encap.h> |
91447636 | 88 | #include <netinet/ip_divert.h> |
9bccf70c A |
89 | |
90 | ||
1c79356b A |
91 | /* |
92 | * TCP/IP protocol family: IP, ICMP, UDP, TCP. | |
93 | */ | |
94 | ||
95 | #if IPSEC | |
96 | #include <netinet6/ipsec.h> | |
97 | #include <netinet6/ah.h> | |
98 | #if IPSEC_ESP | |
99 | #include <netinet6/esp.h> | |
100 | #endif | |
101 | #include <netinet6/ipcomp.h> | |
102 | #endif /* IPSEC */ | |
103 | ||
1c79356b A |
104 | #if IPXIP |
105 | #include <netipx/ipx_ip.h> | |
106 | #endif | |
107 | ||
1c79356b A |
108 | extern struct domain inetdomain; |
109 | static struct pr_usrreqs nousrreqs; | |
9bccf70c A |
110 | extern struct pr_usrreqs icmp_dgram_usrreqs; |
111 | extern int icmp_dgram_ctloutput(struct socket *, struct sockopt *); | |
1c79356b | 112 | |
91447636 | 113 | |
1c79356b A |
114 | struct protosw inetsw[] = { |
115 | { 0, &inetdomain, 0, 0, | |
116 | 0, 0, 0, 0, | |
117 | 0, | |
118 | ip_init, 0, ip_slowtimo, ip_drain, | |
91447636 A |
119 | 0, |
120 | &nousrreqs, | |
121 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b | 122 | }, |
91447636 | 123 | { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK|PR_PCBLOCK, |
1c79356b A |
124 | udp_input, 0, udp_ctlinput, ip_ctloutput, |
125 | 0, | |
91447636 A |
126 | udp_init, 0, udp_slowtimo, 0, |
127 | 0, | |
128 | &udp_usrreqs, | |
129 | udp_lock, udp_unlock, udp_getlock, { 0, 0 }, 0, { 0 } | |
1c79356b | 130 | }, |
91447636 A |
131 | { SOCK_STREAM, &inetdomain, IPPROTO_TCP, |
132 | PR_CONNREQUIRED|PR_IMPLOPCL|PR_WANTRCVD|PR_PCBLOCK|PR_PROTOLOCK|PR_DISPOSE, | |
1c79356b A |
133 | tcp_input, 0, tcp_ctlinput, tcp_ctloutput, |
134 | 0, | |
135 | tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, | |
91447636 A |
136 | 0, |
137 | &tcp_usrreqs, | |
138 | tcp_lock, tcp_unlock, tcp_getlock, { 0, 0 }, 0, { 0 } | |
1c79356b A |
139 | }, |
140 | { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, | |
141 | rip_input, 0, rip_ctlinput, rip_ctloutput, | |
142 | 0, | |
143 | 0, 0, 0, 0, | |
91447636 A |
144 | 0, |
145 | &rip_usrreqs, | |
146 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
1c79356b | 147 | }, |
9bccf70c | 148 | { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
1c79356b A |
149 | icmp_input, 0, 0, rip_ctloutput, |
150 | 0, | |
151 | 0, 0, 0, 0, | |
91447636 A |
152 | 0, |
153 | &rip_usrreqs, | |
154 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
1c79356b | 155 | }, |
91447636 A |
156 | { SOCK_DGRAM, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
157 | icmp_input, 0, 0, icmp_dgram_ctloutput, | |
9bccf70c | 158 | 0, |
91447636 A |
159 | 0, 0, 0, 0, |
160 | 0, | |
161 | &icmp_dgram_usrreqs, | |
162 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
9bccf70c A |
163 | }, |
164 | { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, | |
1c79356b A |
165 | igmp_input, 0, 0, rip_ctloutput, |
166 | 0, | |
167 | igmp_init, igmp_fasttimo, igmp_slowtimo, 0, | |
91447636 A |
168 | 0, |
169 | &rip_usrreqs, | |
170 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
1c79356b | 171 | }, |
9bccf70c | 172 | { SOCK_RAW, &inetdomain, IPPROTO_RSVP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
1c79356b A |
173 | rsvp_input, 0, 0, rip_ctloutput, |
174 | 0, | |
175 | 0, 0, 0, 0, | |
91447636 A |
176 | 0, |
177 | &rip_usrreqs, | |
178 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
179 | }, |
180 | #if IPSEC | |
91447636 | 181 | { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, |
1c79356b A |
182 | ah4_input, 0, 0, 0, |
183 | 0, | |
184 | 0, 0, 0, 0, | |
91447636 A |
185 | 0, |
186 | &nousrreqs, | |
187 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
188 | }, |
189 | #if IPSEC_ESP | |
91447636 | 190 | { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, |
1c79356b A |
191 | esp4_input, 0, 0, 0, |
192 | 0, | |
193 | 0, 0, 0, 0, | |
91447636 A |
194 | 0, |
195 | &nousrreqs, | |
196 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
197 | }, |
198 | #endif | |
91447636 | 199 | { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, |
1c79356b A |
200 | ipcomp4_input, 0, 0, 0, |
201 | 0, | |
202 | 0, 0, 0, 0, | |
91447636 A |
203 | 0, |
204 | &nousrreqs, | |
205 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
206 | }, |
207 | #endif /* IPSEC */ | |
9bccf70c A |
208 | { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
209 | encap4_input, 0, 0, rip_ctloutput, | |
210 | 0, | |
211 | encap_init, 0, 0, 0, | |
91447636 A |
212 | 0, |
213 | &rip_usrreqs, | |
214 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
215 | }, |
216 | # if INET6 | |
9bccf70c A |
217 | { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
218 | encap4_input, 0, 0, rip_ctloutput, | |
1c79356b | 219 | 0, |
9bccf70c | 220 | encap_init, 0, 0, 0, |
91447636 A |
221 | 0, |
222 | &rip_usrreqs, | |
223 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b | 224 | }, |
9bccf70c | 225 | #endif |
1c79356b | 226 | #if IPDIVERT |
91447636 | 227 | { SOCK_RAW, &inetdomain, IPPROTO_DIVERT, PR_ATOMIC|PR_ADDR|PR_PCBLOCK, |
1c79356b A |
228 | div_input, 0, 0, ip_ctloutput, |
229 | 0, | |
230 | div_init, 0, 0, 0, | |
91447636 A |
231 | 0, |
232 | &div_usrreqs, | |
233 | div_lock, div_unlock, div_getlock, { 0, 0 }, 0, { 0 } | |
1c79356b A |
234 | }, |
235 | #endif | |
1c79356b | 236 | #if IPXIP |
9bccf70c | 237 | { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
1c79356b A |
238 | ipxip_input, 0, ipxip_ctlinput, 0, |
239 | 0, | |
240 | 0, 0, 0, 0, | |
91447636 A |
241 | 0, |
242 | &rip_usrreqs, | |
243 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
244 | }, |
245 | #endif | |
246 | #if NSIP | |
9bccf70c | 247 | { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
1c79356b A |
248 | idpip_input, 0, nsip_ctlinput, 0, |
249 | 0, | |
250 | 0, 0, 0, 0, | |
91447636 A |
251 | 0, |
252 | &rip_usrreqs, | |
253 | 0, 0, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
254 | }, |
255 | #endif | |
256 | /* raw wildcard */ | |
91447636 | 257 | { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, |
1c79356b A |
258 | rip_input, 0, 0, rip_ctloutput, |
259 | 0, | |
260 | rip_init, 0, 0, 0, | |
91447636 A |
261 | 0, |
262 | &rip_usrreqs, | |
263 | 0, rip_unlock, 0, { 0, 0 }, 0, { 0 } | |
1c79356b A |
264 | }, |
265 | }; | |
266 | ||
91447636 | 267 | extern int in_inithead(void **, int); |
1c79356b A |
268 | |
269 | int in_proto_count = (sizeof (inetsw) / sizeof (struct protosw)); | |
270 | ||
271 | extern void in_dinit(void); | |
272 | /* A routing init function, and a header size */ | |
273 | struct domain inetdomain = | |
91447636 A |
274 | { AF_INET, |
275 | "internet", | |
276 | in_dinit, | |
277 | 0, | |
278 | 0, | |
279 | inetsw, | |
280 | 0, | |
281 | in_inithead, | |
282 | 32, | |
283 | sizeof(struct sockaddr_in), | |
284 | sizeof(struct tcpiphdr), | |
285 | 0, | |
286 | 0, | |
287 | 0, | |
288 | { 0, 0} | |
1c79356b A |
289 | }; |
290 | ||
291 | DOMAIN_SET(inet); | |
292 | ||
1c79356b A |
293 | SYSCTL_NODE(_net, PF_INET, inet, CTLFLAG_RW, 0, |
294 | "Internet Family"); | |
295 | ||
296 | SYSCTL_NODE(_net_inet, IPPROTO_IP, ip, CTLFLAG_RW, 0, "IP"); | |
297 | SYSCTL_NODE(_net_inet, IPPROTO_ICMP, icmp, CTLFLAG_RW, 0, "ICMP"); | |
298 | SYSCTL_NODE(_net_inet, IPPROTO_UDP, udp, CTLFLAG_RW, 0, "UDP"); | |
299 | SYSCTL_NODE(_net_inet, IPPROTO_TCP, tcp, CTLFLAG_RW, 0, "TCP"); | |
300 | SYSCTL_NODE(_net_inet, IPPROTO_IGMP, igmp, CTLFLAG_RW, 0, "IGMP"); | |
301 | #if IPSEC | |
302 | SYSCTL_NODE(_net_inet, IPPROTO_AH, ipsec, CTLFLAG_RW, 0, "IPSEC"); | |
303 | #endif /* IPSEC */ | |
304 | SYSCTL_NODE(_net_inet, IPPROTO_RAW, raw, CTLFLAG_RW, 0, "RAW"); | |
305 | #if IPDIVERT | |
306 | SYSCTL_NODE(_net_inet, IPPROTO_DIVERT, div, CTLFLAG_RW, 0, "DIVERT"); | |
307 | #endif | |
308 |