in_proto.c revision 1.106 1 1.106 christos /* $NetBSD: in_proto.c,v 1.106 2013/06/05 19:01:26 christos Exp $ */
2 1.32 itojun
3 1.32 itojun /*
4 1.32 itojun * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 1.32 itojun * All rights reserved.
6 1.56 itojun *
7 1.32 itojun * Redistribution and use in source and binary forms, with or without
8 1.32 itojun * modification, are permitted provided that the following conditions
9 1.32 itojun * are met:
10 1.32 itojun * 1. Redistributions of source code must retain the above copyright
11 1.32 itojun * notice, this list of conditions and the following disclaimer.
12 1.32 itojun * 2. Redistributions in binary form must reproduce the above copyright
13 1.32 itojun * notice, this list of conditions and the following disclaimer in the
14 1.32 itojun * documentation and/or other materials provided with the distribution.
15 1.32 itojun * 3. Neither the name of the project nor the names of its contributors
16 1.32 itojun * may be used to endorse or promote products derived from this software
17 1.32 itojun * without specific prior written permission.
18 1.56 itojun *
19 1.32 itojun * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 1.32 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 1.32 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 1.32 itojun * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 1.32 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 1.32 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 1.32 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 1.32 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 1.32 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 1.32 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 1.32 itojun * SUCH DAMAGE.
30 1.32 itojun */
31 1.9 cgd
32 1.1 cgd /*
33 1.8 mycroft * Copyright (c) 1982, 1986, 1993
34 1.8 mycroft * The Regents of the University of California. All rights reserved.
35 1.1 cgd *
36 1.1 cgd * Redistribution and use in source and binary forms, with or without
37 1.1 cgd * modification, are permitted provided that the following conditions
38 1.1 cgd * are met:
39 1.1 cgd * 1. Redistributions of source code must retain the above copyright
40 1.1 cgd * notice, this list of conditions and the following disclaimer.
41 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
42 1.1 cgd * notice, this list of conditions and the following disclaimer in the
43 1.1 cgd * documentation and/or other materials provided with the distribution.
44 1.59 agc * 3. Neither the name of the University nor the names of its contributors
45 1.1 cgd * may be used to endorse or promote products derived from this software
46 1.1 cgd * without specific prior written permission.
47 1.1 cgd *
48 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 1.1 cgd * SUCH DAMAGE.
59 1.1 cgd *
60 1.18 thorpej * @(#)in_proto.c 8.2 (Berkeley) 2/9/95
61 1.1 cgd */
62 1.51 lukem
63 1.51 lukem #include <sys/cdefs.h>
64 1.106 christos __KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.106 2013/06/05 19:01:26 christos Exp $");
65 1.19 scottr
66 1.19 scottr #include "opt_mrouting.h"
67 1.32 itojun #include "opt_inet.h"
68 1.33 thorpej #include "opt_ipsec.h"
69 1.65 manu #include "opt_pim.h"
70 1.97 pooka #include "opt_gateway.h"
71 1.1 cgd
72 1.5 mycroft #include <sys/param.h>
73 1.5 mycroft #include <sys/socket.h>
74 1.5 mycroft #include <sys/protosw.h>
75 1.5 mycroft #include <sys/domain.h>
76 1.5 mycroft #include <sys/mbuf.h>
77 1.1 cgd
78 1.8 mycroft #include <net/if.h>
79 1.8 mycroft #include <net/radix.h>
80 1.8 mycroft #include <net/route.h>
81 1.8 mycroft
82 1.5 mycroft #include <netinet/in.h>
83 1.5 mycroft #include <netinet/in_systm.h>
84 1.8 mycroft #include <netinet/ip.h>
85 1.8 mycroft #include <netinet/ip_var.h>
86 1.8 mycroft #include <netinet/ip_icmp.h>
87 1.78 dyoung #include <netinet/in_ifattach.h>
88 1.8 mycroft #include <netinet/in_pcb.h>
89 1.69 yamt #include <netinet/in_proto.h>
90 1.32 itojun
91 1.32 itojun #ifdef INET6
92 1.32 itojun #ifndef INET
93 1.32 itojun #include <netinet/in.h>
94 1.32 itojun #endif
95 1.32 itojun #include <netinet/ip6.h>
96 1.32 itojun #endif
97 1.32 itojun
98 1.8 mycroft #include <netinet/igmp_var.h>
99 1.65 manu #ifdef PIM
100 1.65 manu #include <netinet/pim_var.h>
101 1.65 manu #endif
102 1.8 mycroft #include <netinet/tcp.h>
103 1.8 mycroft #include <netinet/tcp_fsm.h>
104 1.8 mycroft #include <netinet/tcp_seq.h>
105 1.8 mycroft #include <netinet/tcp_timer.h>
106 1.8 mycroft #include <netinet/tcp_var.h>
107 1.8 mycroft #include <netinet/tcpip.h>
108 1.8 mycroft #include <netinet/tcp_debug.h>
109 1.8 mycroft #include <netinet/udp.h>
110 1.8 mycroft #include <netinet/udp_var.h>
111 1.39 itojun #include <netinet/ip_encap.h>
112 1.79 rpaulo
113 1.1 cgd /*
114 1.1 cgd * TCP/IP protocol family: IP, ICMP, UDP, TCP.
115 1.1 cgd */
116 1.1 cgd
117 1.106 christos #ifdef IPSEC
118 1.61 jonathan #include <netipsec/ipsec.h>
119 1.61 jonathan #include <netipsec/key.h>
120 1.106 christos #endif /* IPSEC */
121 1.61 jonathan
122 1.72 liamjfoy #include "carp.h"
123 1.72 liamjfoy #if NCARP > 0
124 1.72 liamjfoy #include <netinet/ip_carp.h>
125 1.72 liamjfoy #endif
126 1.72 liamjfoy
127 1.98 degroote #include "pfsync.h"
128 1.98 degroote #if NPFSYNC > 0
129 1.98 degroote #include <net/pfvar.h>
130 1.98 degroote #include <net/if_pfsync.h>
131 1.98 degroote #endif
132 1.98 degroote
133 1.79 rpaulo #include "etherip.h"
134 1.79 rpaulo #if NETHERIP > 0
135 1.79 rpaulo #include <netinet/ip_etherip.h>
136 1.79 rpaulo #endif
137 1.67 kim
138 1.66 matt DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */
139 1.66 matt
140 1.94 ad /* Wrappers to acquire kernel_lock. */
141 1.94 ad
142 1.94 ad PR_WRAP_USRREQ(rip_usrreq)
143 1.94 ad PR_WRAP_USRREQ(udp_usrreq)
144 1.94 ad PR_WRAP_USRREQ(tcp_usrreq)
145 1.94 ad
146 1.94 ad #define rip_usrreq rip_usrreq_wrapper
147 1.94 ad #define udp_usrreq udp_usrreq_wrapper
148 1.94 ad #define tcp_usrreq tcp_usrreq_wrapper
149 1.94 ad
150 1.94 ad PR_WRAP_CTLINPUT(rip_ctlinput)
151 1.94 ad PR_WRAP_CTLINPUT(udp_ctlinput)
152 1.94 ad PR_WRAP_CTLINPUT(tcp_ctlinput)
153 1.94 ad
154 1.94 ad #define rip_ctlinput rip_ctlinput_wrapper
155 1.94 ad #define udp_ctlinput udp_ctlinput_wrapper
156 1.94 ad #define tcp_ctlinput tcp_ctlinput_wrapper
157 1.94 ad
158 1.94 ad PR_WRAP_CTLOUTPUT(rip_ctloutput)
159 1.94 ad PR_WRAP_CTLOUTPUT(udp_ctloutput)
160 1.94 ad PR_WRAP_CTLOUTPUT(tcp_ctloutput)
161 1.94 ad
162 1.94 ad #define rip_ctloutput rip_ctloutput_wrapper
163 1.94 ad #define udp_ctloutput udp_ctloutput_wrapper
164 1.94 ad #define tcp_ctloutput tcp_ctloutput_wrapper
165 1.94 ad
166 1.106 christos #if defined(IPSEC)
167 1.94 ad PR_WRAP_CTLINPUT(ah4_ctlinput)
168 1.94 ad
169 1.94 ad #define ah4_ctlinput ah4_ctlinput_wrapper
170 1.94 ad PR_WRAP_CTLINPUT(esp4_ctlinput)
171 1.94 ad
172 1.94 ad #define esp4_ctlinput esp4_ctlinput_wrapper
173 1.94 ad #endif
174 1.94 ad
175 1.63 matt const struct protosw inetsw[] = {
176 1.81 liamjfoy { .pr_domain = &inetdomain,
177 1.81 liamjfoy .pr_init = ip_init,
178 1.81 liamjfoy .pr_output = ip_output,
179 1.101 dyoung .pr_fasttimo = ip_fasttimo,
180 1.81 liamjfoy .pr_slowtimo = ip_slowtimo,
181 1.101 dyoung .pr_drain = ip_drainstub,
182 1.81 liamjfoy },
183 1.81 liamjfoy { .pr_type = SOCK_DGRAM,
184 1.81 liamjfoy .pr_domain = &inetdomain,
185 1.81 liamjfoy .pr_protocol = IPPROTO_UDP,
186 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
187 1.81 liamjfoy .pr_input = udp_input,
188 1.81 liamjfoy .pr_ctlinput = udp_ctlinput,
189 1.81 liamjfoy .pr_ctloutput = udp_ctloutput,
190 1.81 liamjfoy .pr_usrreq = udp_usrreq,
191 1.81 liamjfoy .pr_init = udp_init,
192 1.81 liamjfoy },
193 1.81 liamjfoy { .pr_type = SOCK_STREAM,
194 1.81 liamjfoy .pr_domain = &inetdomain,
195 1.81 liamjfoy .pr_protocol = IPPROTO_TCP,
196 1.81 liamjfoy .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF,
197 1.81 liamjfoy .pr_input = tcp_input,
198 1.81 liamjfoy .pr_ctlinput = tcp_ctlinput,
199 1.81 liamjfoy .pr_ctloutput = tcp_ctloutput,
200 1.81 liamjfoy .pr_usrreq = tcp_usrreq,
201 1.81 liamjfoy .pr_init = tcp_init,
202 1.101 dyoung .pr_fasttimo = tcp_fasttimo,
203 1.81 liamjfoy .pr_slowtimo = tcp_slowtimo,
204 1.101 dyoung .pr_drain = tcp_drainstub,
205 1.81 liamjfoy },
206 1.81 liamjfoy { .pr_type = SOCK_RAW,
207 1.81 liamjfoy .pr_domain = &inetdomain,
208 1.81 liamjfoy .pr_protocol = IPPROTO_RAW,
209 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_PURGEIF,
210 1.81 liamjfoy .pr_input = rip_input,
211 1.81 liamjfoy .pr_output = rip_output,
212 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
213 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
214 1.81 liamjfoy .pr_usrreq = rip_usrreq,
215 1.81 liamjfoy },
216 1.81 liamjfoy { .pr_type = SOCK_RAW,
217 1.81 liamjfoy .pr_domain = &inetdomain,
218 1.81 liamjfoy .pr_protocol = IPPROTO_ICMP,
219 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
220 1.81 liamjfoy .pr_input = icmp_input,
221 1.81 liamjfoy .pr_output = rip_output,
222 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
223 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
224 1.81 liamjfoy .pr_usrreq = rip_usrreq,
225 1.81 liamjfoy .pr_init = icmp_init,
226 1.8 mycroft },
227 1.83 liamjfoy #ifdef GATEWAY
228 1.83 liamjfoy { .pr_domain = &inetdomain,
229 1.83 liamjfoy .pr_protocol = IPPROTO_IP,
230 1.83 liamjfoy .pr_slowtimo = ipflow_slowtimo,
231 1.96 pooka .pr_init = ipflow_poolinit,
232 1.83 liamjfoy },
233 1.83 liamjfoy #endif /* GATEWAY */
234 1.106 christos #ifdef IPSEC
235 1.81 liamjfoy { .pr_type = SOCK_RAW,
236 1.81 liamjfoy .pr_domain = &inetdomain,
237 1.81 liamjfoy .pr_protocol = IPPROTO_AH,
238 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR,
239 1.81 liamjfoy .pr_input = ipsec4_common_input,
240 1.81 liamjfoy .pr_ctlinput = ah4_ctlinput,
241 1.81 liamjfoy },
242 1.81 liamjfoy { .pr_type = SOCK_RAW,
243 1.81 liamjfoy .pr_domain = &inetdomain,
244 1.81 liamjfoy .pr_protocol = IPPROTO_ESP,
245 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR,
246 1.81 liamjfoy .pr_input = ipsec4_common_input,
247 1.81 liamjfoy .pr_ctlinput = esp4_ctlinput,
248 1.81 liamjfoy },
249 1.81 liamjfoy { .pr_type = SOCK_RAW,
250 1.81 liamjfoy .pr_domain = &inetdomain,
251 1.81 liamjfoy .pr_protocol = IPPROTO_IPCOMP,
252 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR,
253 1.81 liamjfoy .pr_input = ipsec4_common_input,
254 1.61 jonathan },
255 1.106 christos #endif /* IPSEC */
256 1.81 liamjfoy { .pr_type = SOCK_RAW,
257 1.81 liamjfoy .pr_domain = &inetdomain,
258 1.81 liamjfoy .pr_protocol = IPPROTO_IPV4,
259 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
260 1.81 liamjfoy .pr_input = encap4_input,
261 1.81 liamjfoy .pr_output = rip_output,
262 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
263 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
264 1.81 liamjfoy .pr_usrreq = rip_usrreq,
265 1.81 liamjfoy .pr_init = encap_init,
266 1.32 itojun },
267 1.32 itojun #ifdef INET6
268 1.81 liamjfoy { .pr_type = SOCK_RAW,
269 1.81 liamjfoy .pr_domain = &inetdomain,
270 1.81 liamjfoy .pr_protocol = IPPROTO_IPV6,
271 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
272 1.81 liamjfoy .pr_input = encap4_input,
273 1.81 liamjfoy .pr_output = rip_output,
274 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
275 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
276 1.81 liamjfoy .pr_usrreq = rip_usrreq,
277 1.81 liamjfoy .pr_init = encap_init,
278 1.32 itojun },
279 1.32 itojun #endif /* INET6 */
280 1.79 rpaulo #if NETHERIP > 0
281 1.81 liamjfoy { .pr_type = SOCK_RAW,
282 1.81 liamjfoy .pr_domain = &inetdomain,
283 1.81 liamjfoy .pr_protocol = IPPROTO_ETHERIP,
284 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
285 1.81 liamjfoy .pr_input = ip_etherip_input,
286 1.81 liamjfoy .pr_output = rip_output,
287 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
288 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
289 1.81 liamjfoy .pr_usrreq = rip_usrreq,
290 1.67 kim },
291 1.81 liamjfoy #endif /* NETHERIP > 0 */
292 1.72 liamjfoy #if NCARP > 0
293 1.81 liamjfoy { .pr_type = SOCK_RAW,
294 1.81 liamjfoy .pr_domain = &inetdomain,
295 1.81 liamjfoy .pr_protocol = IPPROTO_CARP,
296 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR,
297 1.81 liamjfoy .pr_input = carp_proto_input,
298 1.81 liamjfoy .pr_output = rip_output,
299 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
300 1.81 liamjfoy .pr_usrreq = rip_usrreq,
301 1.99 pooka .pr_init = carp_init,
302 1.72 liamjfoy },
303 1.81 liamjfoy #endif /* NCARP > 0 */
304 1.98 degroote #if NPFSYNC > 0
305 1.98 degroote { .pr_type = SOCK_RAW,
306 1.98 degroote .pr_domain = &inetdomain,
307 1.98 degroote .pr_protocol = IPPROTO_PFSYNC,
308 1.98 degroote .pr_flags = PR_ATOMIC|PR_ADDR,
309 1.98 degroote .pr_input = pfsync_input,
310 1.98 degroote .pr_output = rip_output,
311 1.98 degroote .pr_ctloutput = rip_ctloutput,
312 1.98 degroote .pr_usrreq = rip_usrreq,
313 1.98 degroote },
314 1.98 degroote #endif /* NPFSYNC > 0 */
315 1.81 liamjfoy { .pr_type = SOCK_RAW,
316 1.81 liamjfoy .pr_domain = &inetdomain,
317 1.81 liamjfoy .pr_protocol = IPPROTO_IGMP,
318 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
319 1.81 liamjfoy .pr_input = igmp_input,
320 1.81 liamjfoy .pr_output = rip_output,
321 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
322 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
323 1.81 liamjfoy .pr_usrreq = rip_usrreq,
324 1.81 liamjfoy .pr_fasttimo = igmp_fasttimo,
325 1.81 liamjfoy .pr_slowtimo = igmp_slowtimo,
326 1.92 thorpej .pr_init = igmp_init,
327 1.1 cgd },
328 1.65 manu #ifdef PIM
329 1.81 liamjfoy { .pr_type = SOCK_RAW,
330 1.81 liamjfoy .pr_domain = &inetdomain,
331 1.81 liamjfoy .pr_protocol = IPPROTO_PIM,
332 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
333 1.81 liamjfoy .pr_input = pim_input,
334 1.81 liamjfoy .pr_output = rip_output,
335 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
336 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
337 1.81 liamjfoy .pr_usrreq = rip_usrreq,
338 1.65 manu },
339 1.65 manu #endif /* PIM */
340 1.11 mycroft /* raw wildcard */
341 1.81 liamjfoy { .pr_type = SOCK_RAW,
342 1.81 liamjfoy .pr_domain = &inetdomain,
343 1.81 liamjfoy .pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
344 1.81 liamjfoy .pr_input = rip_input,
345 1.81 liamjfoy .pr_output = rip_output,
346 1.81 liamjfoy .pr_ctloutput = rip_ctloutput,
347 1.81 liamjfoy .pr_ctlinput = rip_ctlinput,
348 1.81 liamjfoy .pr_usrreq = rip_usrreq,
349 1.81 liamjfoy .pr_init = rip_init,
350 1.1 cgd },
351 1.1 cgd };
352 1.1 cgd
353 1.73 matt extern struct ifqueue ipintrq;
354 1.73 matt
355 1.89 dyoung const struct sockaddr_in in_any = {
356 1.89 dyoung .sin_len = sizeof(struct sockaddr_in)
357 1.89 dyoung , .sin_family = AF_INET
358 1.89 dyoung , .sin_port = 0
359 1.90 dyoung , .sin_addr = {.s_addr = 0 /* INADDR_ANY */}
360 1.89 dyoung };
361 1.89 dyoung
362 1.73 matt struct domain inetdomain = {
363 1.80 dyoung .dom_family = PF_INET, .dom_name = "internet", .dom_init = NULL,
364 1.80 dyoung .dom_externalize = NULL, .dom_dispose = NULL,
365 1.80 dyoung .dom_protosw = inetsw,
366 1.87 dyoung .dom_protoswNPROTOSW = &inetsw[__arraycount(inetsw)],
367 1.100 dyoung .dom_rtattach = rt_inithead,
368 1.95 pooka .dom_rtoffset = 32,
369 1.95 pooka .dom_maxrtkey = sizeof(struct ip_pack4),
370 1.78 dyoung #ifdef IPSELSRC
371 1.80 dyoung .dom_ifattach = in_domifattach,
372 1.80 dyoung .dom_ifdetach = in_domifdetach,
373 1.78 dyoung #else
374 1.80 dyoung .dom_ifattach = NULL,
375 1.80 dyoung .dom_ifdetach = NULL,
376 1.78 dyoung #endif
377 1.80 dyoung .dom_ifqueues = { &ipintrq, NULL },
378 1.80 dyoung .dom_link = { NULL },
379 1.80 dyoung .dom_mowner = MOWNER_INIT("",""),
380 1.86 dyoung .dom_sa_cmpofs = offsetof(struct sockaddr_in, sin_addr),
381 1.86 dyoung .dom_sa_cmplen = sizeof(struct in_addr),
382 1.89 dyoung .dom_sa_any = (const struct sockaddr *)&in_any,
383 1.89 dyoung .dom_sockaddr_const_addr = sockaddr_in_const_addr,
384 1.89 dyoung .dom_sockaddr_addr = sockaddr_in_addr,
385 1.84 dyoung .dom_rtcache = LIST_HEAD_INITIALIZER(inetdomain.dom_rtcache)
386 1.73 matt };
387 1.38 darrenr
388 1.38 darrenr u_char ip_protox[IPPROTO_MAX];
389 1.36 thorpej
390 1.40 itojun int icmperrppslim = 100; /* 100pps */
391 1.84 dyoung
392 1.89 dyoung static void
393 1.89 dyoung sockaddr_in_addrlen(const struct sockaddr *sa, socklen_t *slenp)
394 1.89 dyoung {
395 1.89 dyoung socklen_t slen;
396 1.89 dyoung
397 1.89 dyoung if (slenp == NULL)
398 1.89 dyoung return;
399 1.89 dyoung
400 1.89 dyoung slen = sockaddr_getlen(sa);
401 1.89 dyoung *slenp = (socklen_t)MIN(sizeof(struct in_addr),
402 1.89 dyoung slen - MIN(slen, offsetof(struct sockaddr_in, sin_addr)));
403 1.89 dyoung }
404 1.89 dyoung
405 1.89 dyoung const void *
406 1.89 dyoung sockaddr_in_const_addr(const struct sockaddr *sa, socklen_t *slenp)
407 1.89 dyoung {
408 1.89 dyoung const struct sockaddr_in *sin;
409 1.89 dyoung
410 1.89 dyoung sockaddr_in_addrlen(sa, slenp);
411 1.89 dyoung sin = (const struct sockaddr_in *)sa;
412 1.89 dyoung return &sin->sin_addr;
413 1.89 dyoung }
414 1.89 dyoung
415 1.89 dyoung void *
416 1.89 dyoung sockaddr_in_addr(struct sockaddr *sa, socklen_t *slenp)
417 1.89 dyoung {
418 1.89 dyoung struct sockaddr_in *sin;
419 1.89 dyoung
420 1.89 dyoung sockaddr_in_addrlen(sa, slenp);
421 1.89 dyoung sin = (struct sockaddr_in *)sa;
422 1.89 dyoung return &sin->sin_addr;
423 1.89 dyoung }
424 1.89 dyoung
425 1.84 dyoung int
426 1.84 dyoung sockaddr_in_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2)
427 1.84 dyoung {
428 1.84 dyoung uint_fast8_t len;
429 1.84 dyoung const uint_fast8_t addrofs = offsetof(struct sockaddr_in, sin_addr),
430 1.84 dyoung addrend = addrofs + sizeof(struct in_addr);
431 1.84 dyoung int rc;
432 1.84 dyoung const struct sockaddr_in *sin1, *sin2;
433 1.84 dyoung
434 1.84 dyoung sin1 = satocsin(sa1);
435 1.84 dyoung sin2 = satocsin(sa2);
436 1.84 dyoung
437 1.84 dyoung len = MIN(addrend, MIN(sin1->sin_len, sin2->sin_len));
438 1.84 dyoung
439 1.84 dyoung if (len > addrofs &&
440 1.84 dyoung (rc = memcmp(&sin1->sin_addr, &sin2->sin_addr,
441 1.84 dyoung len - addrofs)) != 0)
442 1.84 dyoung return rc;
443 1.84 dyoung
444 1.84 dyoung return sin1->sin_len - sin2->sin_len;
445 1.84 dyoung }
446