Line data Source code
1 : /* $OpenBSD: in.h,v 1.132 2018/09/11 21:04:03 bluhm Exp $ */
2 : /* $NetBSD: in.h,v 1.20 1996/02/13 23:41:47 christos Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1982, 1986, 1990, 1993
6 : * The Regents of the University of California. All rights reserved.
7 : *
8 : * Redistribution and use in source and binary forms, with or without
9 : * modification, are permitted provided that the following conditions
10 : * are met:
11 : * 1. Redistributions of source code must retain the above copyright
12 : * notice, this list of conditions and the following disclaimer.
13 : * 2. Redistributions in binary form must reproduce the above copyright
14 : * notice, this list of conditions and the following disclaimer in the
15 : * documentation and/or other materials provided with the distribution.
16 : * 3. Neither the name of the University nor the names of its contributors
17 : * may be used to endorse or promote products derived from this software
18 : * without specific prior written permission.
19 : *
20 : * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 : * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 : * SUCH DAMAGE.
31 : */
32 :
33 : /*
34 : * Constants and structures defined by the internet system,
35 : * Per RFC 790, September 1981, and numerous additions.
36 : */
37 :
38 : #ifndef _NETINET_IN_H_
39 : #define _NETINET_IN_H_
40 :
41 : #include <sys/cdefs.h>
42 :
43 : #ifndef _KERNEL
44 : #include <sys/types.h>
45 :
46 : /* <sys/_endian.h> is pulled in by <sys/types.h> */
47 : #ifndef htons
48 : #define htons(x) __htobe16(x)
49 : #define htonl(x) __htobe32(x)
50 : #define ntohs(x) __htobe16(x)
51 : #define ntohl(x) __htobe32(x)
52 : #endif
53 :
54 : #endif /* _KERNEL */
55 :
56 : #ifndef _SA_FAMILY_T_DEFINED_
57 : #define _SA_FAMILY_T_DEFINED_
58 : typedef __sa_family_t sa_family_t; /* sockaddr address family type */
59 : #endif /* _SA_FAMILY_T_DEFINED_ */
60 :
61 : #ifndef _IN_TYPES_DEFINED_
62 : #define _IN_TYPES_DEFINED_
63 : typedef __in_addr_t in_addr_t; /* base type for internet address */
64 : typedef __in_port_t in_port_t; /* IP port type */
65 : #endif
66 :
67 : /*
68 : * Protocols
69 : */
70 : #define IPPROTO_IP 0 /* dummy for IP */
71 : #define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */
72 : #define IPPROTO_ICMP 1 /* control message protocol */
73 : #define IPPROTO_IGMP 2 /* group mgmt protocol */
74 : #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
75 : #define IPPROTO_IPIP 4 /* IP inside IP */
76 : #define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */
77 : #define IPPROTO_TCP 6 /* tcp */
78 : #define IPPROTO_EGP 8 /* exterior gateway protocol */
79 : #define IPPROTO_PUP 12 /* pup */
80 : #define IPPROTO_UDP 17 /* user datagram protocol */
81 : #define IPPROTO_IDP 22 /* xns idp */
82 : #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
83 : #define IPPROTO_IPV6 41 /* IPv6 in IPv6 */
84 : #define IPPROTO_ROUTING 43 /* Routing header */
85 : #define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */
86 : #define IPPROTO_RSVP 46 /* resource reservation */
87 : #define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */
88 : #define IPPROTO_ESP 50 /* Encap. Security Payload */
89 : #define IPPROTO_AH 51 /* Authentication header */
90 : #define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */
91 : #define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */
92 : #define IPPROTO_NONE 59 /* No next header */
93 : #define IPPROTO_DSTOPTS 60 /* Destination options header */
94 : #define IPPROTO_EON 80 /* ISO cnlp */
95 : #define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */
96 : #define IPPROTO_ENCAP 98 /* encapsulation header */
97 : #define IPPROTO_PIM 103 /* Protocol indep. multicast */
98 : #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */
99 : #define IPPROTO_CARP 112 /* CARP */
100 : #define IPPROTO_MPLS 137 /* unicast MPLS packet */
101 : #define IPPROTO_PFSYNC 240 /* PFSYNC */
102 : #define IPPROTO_RAW 255 /* raw IP packet */
103 :
104 : #define IPPROTO_MAX 256
105 :
106 : /* Only used internally, so it can be outside the range of valid IP protocols */
107 : #define IPPROTO_DIVERT 258 /* Divert sockets */
108 :
109 : /*
110 : * From FreeBSD:
111 : *
112 : * Local port number conventions:
113 : *
114 : * When a user does a bind(2) or connect(2) with a port number of zero,
115 : * a non-conflicting local port address is chosen.
116 : * The default range is IPPORT_RESERVED through
117 : * IPPORT_USERRESERVED, although that is settable by sysctl.
118 : *
119 : * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
120 : * default assignment range.
121 : *
122 : * The value IP_PORTRANGE_DEFAULT causes the default behavior.
123 : *
124 : * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
125 : * into the "high" range. These are reserved for client outbound connections
126 : * which do not want to be filtered by any firewalls.
127 : *
128 : * The value IP_PORTRANGE_LOW changes the range to the "low" are
129 : * that is (by convention) restricted to privileged processes. This
130 : * convention is based on "vouchsafe" principles only. It is only secure
131 : * if you trust the remote host to restrict these ports.
132 : *
133 : * The default range of ports and the high range can be changed by
134 : * sysctl(3). (net.inet.ip.port{hi}{first,last})
135 : *
136 : * Changing those values has bad security implications if you are
137 : * using a a stateless firewall that is allowing packets outside of that
138 : * range in order to allow transparent outgoing connections.
139 : *
140 : * Such a firewall configuration will generally depend on the use of these
141 : * default values. If you change them, you may find your Security
142 : * Administrator looking for you with a heavy object.
143 : */
144 :
145 : /*
146 : * Ports < IPPORT_RESERVED are reserved for
147 : * privileged processes (e.g. root).
148 : * Ports > IPPORT_USERRESERVED are reserved
149 : * for servers, not necessarily privileged.
150 : */
151 : #define IPPORT_RESERVED 1024
152 : #define IPPORT_USERRESERVED 49151
153 :
154 : /*
155 : * Default local port range to use by setting IP_PORTRANGE_HIGH
156 : */
157 : #define IPPORT_HIFIRSTAUTO 49152
158 : #define IPPORT_HILASTAUTO 65535
159 :
160 : #ifndef _IN_ADDR_DECLARED
161 : #define _IN_ADDR_DECLARED
162 : /*
163 : * IP Version 4 Internet address (a structure for historical reasons)
164 : */
165 : struct in_addr {
166 : in_addr_t s_addr;
167 : };
168 : #endif /* _IN_ADDR_DECLARED */
169 :
170 : /* last return value of *_input(), meaning "all job for this pkt is done". */
171 : #define IPPROTO_DONE 257
172 :
173 : /*
174 : * Definitions of bits in internet address integers.
175 : * On subnets, the decomposition of addresses to host and net parts
176 : * is done according to subnet mask, not the masks here.
177 : *
178 : * By byte-swapping the constants, we avoid ever having to byte-swap IP
179 : * addresses inside the kernel. Unfortunately, user-level programs rely
180 : * on these macros not doing byte-swapping.
181 : */
182 : #ifdef _KERNEL
183 : #define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x)))
184 : #else
185 : #define __IPADDR(x) ((u_int32_t)(x))
186 : #endif /* _KERNEL */
187 :
188 : #define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \
189 : __IPADDR(0x00000000))
190 : #define IN_CLASSA_NET __IPADDR(0xff000000)
191 : #define IN_CLASSA_NSHIFT 24
192 : #define IN_CLASSA_HOST __IPADDR(0x00ffffff)
193 : #define IN_CLASSA_MAX 128
194 :
195 : #define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \
196 : __IPADDR(0x80000000))
197 : #define IN_CLASSB_NET __IPADDR(0xffff0000)
198 : #define IN_CLASSB_NSHIFT 16
199 : #define IN_CLASSB_HOST __IPADDR(0x0000ffff)
200 : #define IN_CLASSB_MAX 65536
201 :
202 : #define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \
203 : __IPADDR(0xc0000000))
204 : #define IN_CLASSC_NET __IPADDR(0xffffff00)
205 : #define IN_CLASSC_NSHIFT 8
206 : #define IN_CLASSC_HOST __IPADDR(0x000000ff)
207 :
208 : #define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
209 : __IPADDR(0xe0000000))
210 : /* These ones aren't really net and host fields, but routing needn't know. */
211 : #define IN_CLASSD_NET __IPADDR(0xf0000000)
212 : #define IN_CLASSD_NSHIFT 28
213 : #define IN_CLASSD_HOST __IPADDR(0x0fffffff)
214 : #define IN_MULTICAST(i) IN_CLASSD(i)
215 :
216 : #define IN_RFC3021_NET __IPADDR(0xfffffffe)
217 : #define IN_RFC3021_NSHIFT 31
218 : #define IN_RFC3021_HOST __IPADDR(0x00000001)
219 : #define IN_RFC3021_SUBNET(n) (((u_int32_t)(n) & IN_RFC3021_NET) == \
220 : IN_RFC3021_NET)
221 :
222 : #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
223 : __IPADDR(0xf0000000))
224 : #define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
225 : __IPADDR(0xf0000000))
226 :
227 : #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \
228 : __IPADDR(0xe0000000))
229 :
230 : #ifdef _KERNEL
231 : #define IN_CLASSFULBROADCAST(i, b) \
232 : ((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) || \
233 : (IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) || \
234 : (IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i))
235 : #endif /* _KERNEL */
236 :
237 : #define INADDR_ANY __IPADDR(0x00000000)
238 : #define INADDR_LOOPBACK __IPADDR(0x7f000001)
239 : #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */
240 : #ifndef _KERNEL
241 : #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */
242 : #endif /* _KERNEL */
243 :
244 : #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */
245 : #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */
246 : #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */
247 : #define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */
248 : #define INADDR_PFSYNC_GROUP __IPADDR(0xe00000f0) /* 224.0.0.240 */
249 : #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */
250 :
251 : #define IN_LOOPBACKNET 127 /* official! */
252 :
253 : /*
254 : * IP Version 4 socket address.
255 : */
256 : struct sockaddr_in {
257 : u_int8_t sin_len;
258 : sa_family_t sin_family;
259 : in_port_t sin_port;
260 : struct in_addr sin_addr;
261 : int8_t sin_zero[8];
262 : };
263 :
264 : /*
265 : * Structure used to describe IP options.
266 : * Used to store options internally, to pass them to a process,
267 : * or to restore options retrieved earlier.
268 : * The ip_dst is used for the first-hop gateway when using a source route
269 : * (this gets put into the header proper).
270 : */
271 : struct ip_opts {
272 : struct in_addr ip_dst; /* first hop, 0 w/o src rt */
273 : #if defined(__cplusplus)
274 : int8_t Ip_opts[40]; /* cannot have same name as class */
275 : #else
276 : int8_t ip_opts[40]; /* actually variable in size */
277 : #endif /* defined(__cplusplus) */
278 : };
279 :
280 : /*
281 : * Options for use with [gs]etsockopt at the IP level.
282 : * First word of comment is data type; bool is stored in int.
283 : */
284 : #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
285 : #define IP_HDRINCL 2 /* int; header is included with data */
286 : #define IP_TOS 3 /* int; IP type of service and preced. */
287 : #define IP_TTL 4 /* int; IP time to live */
288 : #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
289 : #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
290 : #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
291 : #define IP_RETOPTS 8 /* ip_opts; set/get IP options */
292 : #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */
293 : #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
294 : #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
295 : #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
296 : #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
297 : #define IP_PORTRANGE 19 /* int; range to choose for unspec port */
298 : #define IP_AUTH_LEVEL 20 /* int; authentication used */
299 : #define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */
300 : #define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */
301 : #define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */
302 : #define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */
303 : #define IP_IPSEC_LOCAL_CRED 25 /* buf; was: IPsec local credentials */
304 : #define IP_IPSEC_REMOTE_CRED 26 /* buf; was: IPsec remote credentials */
305 : #define IP_IPSEC_LOCAL_AUTH 27 /* buf; was: IPsec local auth material */
306 : #define IP_IPSEC_REMOTE_AUTH 28 /* buf; was: IPsec remote auth material */
307 : #define IP_IPCOMP_LEVEL 29 /* int; compression used */
308 : #define IP_RECVIF 30 /* bool; receive reception if w/dgram */
309 : #define IP_RECVTTL 31 /* bool; receive IP TTL w/dgram */
310 : #define IP_MINTTL 32 /* minimum TTL for packet or drop */
311 : #define IP_RECVDSTPORT 33 /* bool; receive IP dst port w/dgram */
312 : #define IP_PIPEX 34 /* bool; using PIPEX */
313 : #define IP_RECVRTABLE 35 /* bool; receive rdomain w/dgram */
314 : #define IP_IPSECFLOWINFO 36 /* bool; IPsec flow info for dgram */
315 : #define IP_IPDEFTTL 37 /* int; IP TTL system default */
316 : #define IP_SENDSRCADDR IP_RECVDSTADDR /* struct in_addr; */
317 : /* source address to use */
318 :
319 : #define IP_RTABLE 0x1021 /* int; routing table, see SO_RTABLE */
320 :
321 : #if __BSD_VISIBLE
322 : /*
323 : * Security levels - IPsec, not IPSO
324 : */
325 :
326 : #define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */
327 : #define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */
328 : #define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */
329 : #define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */
330 : #define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */
331 : #define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */
332 : #define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL
333 :
334 : #define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
335 : #define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
336 : #define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
337 : #define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
338 :
339 : #endif /* __BSD_VISIBLE */
340 :
341 : /*
342 : * Defaults and limits for options
343 : */
344 : #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
345 : #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
346 : /*
347 : * The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS
348 : * and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS,
349 : * and is reallocated when needed, sized according to a power-of-two increment.
350 : */
351 : #define IP_MIN_MEMBERSHIPS 15
352 : #define IP_MAX_MEMBERSHIPS 4095
353 :
354 : /*
355 : * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
356 : */
357 : struct ip_mreq {
358 : struct in_addr imr_multiaddr; /* IP multicast address of group */
359 : struct in_addr imr_interface; /* local IP address of interface */
360 : };
361 :
362 : /*
363 : * Argument for IP_PORTRANGE:
364 : * - which range to search when port is unspecified at bind() or connect()
365 : */
366 : #define IP_PORTRANGE_DEFAULT 0 /* default range */
367 : #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
368 : #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
369 :
370 : /*
371 : * Buffer lengths for strings containing printable IP addresses
372 : */
373 : #ifndef INET_ADDRSTRLEN
374 : #define INET_ADDRSTRLEN 16
375 : #endif /* INET_ADDRSTRLEN */
376 :
377 :
378 : #if __BSD_VISIBLE
379 : /*
380 : * Definitions for inet sysctl operations.
381 : *
382 : * Third level is protocol number.
383 : * Fourth level is desired variable within that protocol.
384 : */
385 : #define IPPROTO_MAXID (IPPROTO_DIVERT + 1) /* don't list to IPPROTO_MAX */
386 :
387 : #define CTL_IPPROTO_NAMES { \
388 : { "ip", CTLTYPE_NODE }, \
389 : { "icmp", CTLTYPE_NODE }, \
390 : { "igmp", CTLTYPE_NODE }, \
391 : { "ggp", CTLTYPE_NODE }, \
392 : { "ipip", CTLTYPE_NODE }, \
393 : { 0, 0 }, \
394 : { "tcp", CTLTYPE_NODE }, \
395 : { 0, 0 }, \
396 : { "egp", CTLTYPE_NODE }, \
397 : { 0, 0 }, \
398 : { 0, 0 }, \
399 : { 0, 0 }, \
400 : { "pup", CTLTYPE_NODE }, \
401 : { 0, 0 }, \
402 : { 0, 0 }, \
403 : { 0, 0 }, \
404 : { 0, 0 }, \
405 : { "udp", CTLTYPE_NODE }, \
406 : { 0, 0 }, \
407 : { 0, 0 }, \
408 : { 0, 0 }, \
409 : { 0, 0 }, \
410 : { 0, 0 }, \
411 : { 0, 0 }, \
412 : { 0, 0 }, \
413 : { 0, 0 }, \
414 : { 0, 0 }, \
415 : { 0, 0 }, \
416 : { 0, 0 }, \
417 : { 0, 0 }, \
418 : { 0, 0 }, \
419 : { 0, 0 }, \
420 : { 0, 0 }, \
421 : { 0, 0 }, \
422 : { 0, 0 }, \
423 : { 0, 0 }, \
424 : { 0, 0 }, \
425 : { 0, 0 }, \
426 : { 0, 0 }, \
427 : { 0, 0 }, \
428 : { 0, 0 }, \
429 : { 0, 0 }, \
430 : { 0, 0 }, \
431 : { 0, 0 }, \
432 : { 0, 0 }, \
433 : { 0, 0 }, \
434 : { 0, 0 }, \
435 : { "gre", CTLTYPE_NODE }, \
436 : { 0, 0 }, \
437 : { 0, 0 }, \
438 : { "esp", CTLTYPE_NODE }, \
439 : { "ah", CTLTYPE_NODE }, \
440 : { 0, 0 }, \
441 : { 0, 0 }, \
442 : { 0, 0 }, \
443 : { "mobileip", CTLTYPE_NODE }, \
444 : { 0, 0 }, \
445 : { 0, 0 }, \
446 : { 0, 0 }, \
447 : { 0, 0 }, \
448 : { 0, 0 }, \
449 : { 0, 0 }, \
450 : { 0, 0 }, \
451 : { 0, 0 }, \
452 : { 0, 0 }, \
453 : { 0, 0 }, \
454 : { 0, 0 }, \
455 : { 0, 0 }, \
456 : { 0, 0 }, \
457 : { 0, 0 }, \
458 : { 0, 0 }, \
459 : { 0, 0 }, \
460 : { 0, 0 }, \
461 : { 0, 0 }, \
462 : { 0, 0 }, \
463 : { 0, 0 }, \
464 : { 0, 0 }, \
465 : { 0, 0 }, \
466 : { 0, 0 }, \
467 : { 0, 0 }, \
468 : { 0, 0 }, \
469 : { 0, 0 }, \
470 : { 0, 0 }, \
471 : { 0, 0 }, \
472 : { 0, 0 }, \
473 : { 0, 0 }, \
474 : { 0, 0 }, \
475 : { 0, 0 }, \
476 : { 0, 0 }, \
477 : { 0, 0 }, \
478 : { 0, 0 }, \
479 : { 0, 0 }, \
480 : { 0, 0 }, \
481 : { 0, 0 }, \
482 : { 0, 0 }, \
483 : { 0, 0 }, \
484 : { 0, 0 }, \
485 : { "etherip", CTLTYPE_NODE }, \
486 : { 0, 0 }, \
487 : { 0, 0 }, \
488 : { 0, 0 }, \
489 : { 0, 0 }, \
490 : { 0, 0 }, \
491 : { 0, 0 }, \
492 : { 0, 0 }, \
493 : { 0, 0 }, \
494 : { 0, 0 }, \
495 : { 0, 0 }, \
496 : { "ipcomp", CTLTYPE_NODE }, \
497 : { 0, 0 }, \
498 : { 0, 0 }, \
499 : { 0, 0 }, \
500 : { "carp", CTLTYPE_NODE }, \
501 : { 0, 0 }, \
502 : { 0, 0 }, \
503 : { 0, 0 }, \
504 : { 0, 0 }, \
505 : { 0, 0 }, \
506 : { 0, 0 }, \
507 : { 0, 0 }, \
508 : { 0, 0 }, \
509 : { 0, 0 }, \
510 : { 0, 0 }, \
511 : { 0, 0 }, \
512 : { 0, 0 }, \
513 : { 0, 0 }, \
514 : { 0, 0 }, \
515 : { 0, 0 }, \
516 : { 0, 0 }, \
517 : { 0, 0 }, \
518 : { 0, 0 }, \
519 : { 0, 0 }, \
520 : { 0, 0 }, \
521 : { 0, 0 }, \
522 : { 0, 0 }, \
523 : { 0, 0 }, \
524 : { 0, 0 }, \
525 : { 0, 0 }, \
526 : { 0, 0 }, \
527 : { 0, 0 }, \
528 : { 0, 0 }, \
529 : { 0, 0 }, \
530 : { 0, 0 }, \
531 : { 0, 0 }, \
532 : { 0, 0 }, \
533 : { 0, 0 }, \
534 : { 0, 0 }, \
535 : { 0, 0 }, \
536 : { 0, 0 }, \
537 : { 0, 0 }, \
538 : { 0, 0 }, \
539 : { 0, 0 }, \
540 : { 0, 0 }, \
541 : { 0, 0 }, \
542 : { 0, 0 }, \
543 : { 0, 0 }, \
544 : { 0, 0 }, \
545 : { 0, 0 }, \
546 : { 0, 0 }, \
547 : { 0, 0 }, \
548 : { 0, 0 }, \
549 : { 0, 0 }, \
550 : { 0, 0 }, \
551 : { 0, 0 }, \
552 : { 0, 0 }, \
553 : { 0, 0 }, \
554 : { 0, 0 }, \
555 : { 0, 0 }, \
556 : { 0, 0 }, \
557 : { 0, 0 }, \
558 : { 0, 0 }, \
559 : { 0, 0 }, \
560 : { 0, 0 }, \
561 : { 0, 0 }, \
562 : { 0, 0 }, \
563 : { 0, 0 }, \
564 : { 0, 0 }, \
565 : { 0, 0 }, \
566 : { 0, 0 }, \
567 : { 0, 0 }, \
568 : { 0, 0 }, \
569 : { 0, 0 }, \
570 : { 0, 0 }, \
571 : { 0, 0 }, \
572 : { 0, 0 }, \
573 : { 0, 0 }, \
574 : { 0, 0 }, \
575 : { 0, 0 }, \
576 : { 0, 0 }, \
577 : { 0, 0 }, \
578 : { 0, 0 }, \
579 : { 0, 0 }, \
580 : { 0, 0 }, \
581 : { 0, 0 }, \
582 : { 0, 0 }, \
583 : { 0, 0 }, \
584 : { 0, 0 }, \
585 : { 0, 0 }, \
586 : { 0, 0 }, \
587 : { 0, 0 }, \
588 : { 0, 0 }, \
589 : { 0, 0 }, \
590 : { 0, 0 }, \
591 : { 0, 0 }, \
592 : { 0, 0 }, \
593 : { 0, 0 }, \
594 : { 0, 0 }, \
595 : { 0, 0 }, \
596 : { 0, 0 }, \
597 : { 0, 0 }, \
598 : { 0, 0 }, \
599 : { 0, 0 }, \
600 : { 0, 0 }, \
601 : { 0, 0 }, \
602 : { 0, 0 }, \
603 : { 0, 0 }, \
604 : { 0, 0 }, \
605 : { 0, 0 }, \
606 : { 0, 0 }, \
607 : { 0, 0 }, \
608 : { 0, 0 }, \
609 : { 0, 0 }, \
610 : { 0, 0 }, \
611 : { 0, 0 }, \
612 : { 0, 0 }, \
613 : { 0, 0 }, \
614 : { 0, 0 }, \
615 : { 0, 0 }, \
616 : { 0, 0 }, \
617 : { 0, 0 }, \
618 : { 0, 0 }, \
619 : { 0, 0 }, \
620 : { 0, 0 }, \
621 : { 0, 0 }, \
622 : { 0, 0 }, \
623 : { 0, 0 }, \
624 : { 0, 0 }, \
625 : { 0, 0 }, \
626 : { 0, 0 }, \
627 : { 0, 0 }, \
628 : { "pfsync", CTLTYPE_NODE }, \
629 : { 0, 0 }, \
630 : { 0, 0 }, \
631 : { 0, 0 }, \
632 : { 0, 0 }, \
633 : { 0, 0 }, \
634 : { 0, 0 }, \
635 : { 0, 0 }, \
636 : { 0, 0 }, \
637 : { 0, 0 }, \
638 : { 0, 0 }, \
639 : { 0, 0 }, \
640 : { 0, 0 }, \
641 : { 0, 0 }, \
642 : { 0, 0 }, \
643 : { 0, 0 }, \
644 : { 0, 0 }, \
645 : { 0, 0 }, \
646 : { "divert", CTLTYPE_NODE }, \
647 : }
648 :
649 : /*
650 : * Names for IP sysctl objects
651 : */
652 : #define IPCTL_FORWARDING 1 /* act as router */
653 : #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
654 : #define IPCTL_DEFTTL 3 /* default TTL */
655 : #define IPCTL_SOURCEROUTE 5 /* may perform source routes */
656 : #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */
657 : #define IPCTL_IPPORT_FIRSTAUTO 7
658 : #define IPCTL_IPPORT_LASTAUTO 8
659 : #define IPCTL_IPPORT_HIFIRSTAUTO 9
660 : #define IPCTL_IPPORT_HILASTAUTO 10
661 : #define IPCTL_IPPORT_MAXQUEUE 11
662 : #define IPCTL_ENCDEBUG 12
663 : #define IPCTL_IPSEC_STATS 13
664 : #define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */
665 : #define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */
666 : #define IPCTL_IPSEC_REQUIRE_PFS 16
667 : #define IPCTL_IPSEC_SOFT_ALLOCATIONS 17
668 : #define IPCTL_IPSEC_ALLOCATIONS 18
669 : #define IPCTL_IPSEC_SOFT_BYTES 19
670 : #define IPCTL_IPSEC_BYTES 20
671 : #define IPCTL_IPSEC_TIMEOUT 21
672 : #define IPCTL_IPSEC_SOFT_TIMEOUT 22
673 : #define IPCTL_IPSEC_SOFT_FIRSTUSE 23
674 : #define IPCTL_IPSEC_FIRSTUSE 24
675 : #define IPCTL_IPSEC_ENC_ALGORITHM 25
676 : #define IPCTL_IPSEC_AUTH_ALGORITHM 26
677 : #define IPCTL_MTUDISC 27 /* allow path MTU discovery */
678 : #define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */
679 : #define IPCTL_IPSEC_IPCOMP_ALGORITHM 29
680 : #define IPCTL_IFQUEUE 30
681 : #define IPCTL_MFORWARDING 31
682 : #define IPCTL_MULTIPATH 32
683 : #define IPCTL_STATS 33 /* IP statistics */
684 : #define IPCTL_MRTPROTO 34 /* type of multicast */
685 : #define IPCTL_MRTSTATS 35
686 : #define IPCTL_ARPQUEUED 36
687 : #define IPCTL_MRTMFC 37
688 : #define IPCTL_MRTVIF 38
689 : #define IPCTL_ARPTIMEOUT 39
690 : #define IPCTL_ARPDOWN 40
691 : #define IPCTL_MAXID 41
692 :
693 : #define IPCTL_NAMES { \
694 : { 0, 0 }, \
695 : { "forwarding", CTLTYPE_INT }, \
696 : { "redirect", CTLTYPE_INT }, \
697 : { "ttl", CTLTYPE_INT }, \
698 : /* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \
699 : { "sourceroute", CTLTYPE_INT }, \
700 : { "directed-broadcast", CTLTYPE_INT }, \
701 : { "portfirst", CTLTYPE_INT }, \
702 : { "portlast", CTLTYPE_INT }, \
703 : { "porthifirst", CTLTYPE_INT }, \
704 : { "porthilast", CTLTYPE_INT }, \
705 : { "maxqueue", CTLTYPE_INT }, \
706 : { "encdebug", CTLTYPE_INT }, \
707 : { 0, 0 /* ipsecstat */ }, \
708 : { "ipsec-expire-acquire", CTLTYPE_INT }, \
709 : { "ipsec-invalid-life", CTLTYPE_INT }, \
710 : { "ipsec-pfs", CTLTYPE_INT }, \
711 : { "ipsec-soft-allocs", CTLTYPE_INT }, \
712 : { "ipsec-allocs", CTLTYPE_INT }, \
713 : { "ipsec-soft-bytes", CTLTYPE_INT }, \
714 : { "ipsec-bytes", CTLTYPE_INT }, \
715 : { "ipsec-timeout", CTLTYPE_INT }, \
716 : { "ipsec-soft-timeout", CTLTYPE_INT }, \
717 : { "ipsec-soft-firstuse", CTLTYPE_INT }, \
718 : { "ipsec-firstuse", CTLTYPE_INT }, \
719 : { "ipsec-enc-alg", CTLTYPE_STRING }, \
720 : { "ipsec-auth-alg", CTLTYPE_STRING }, \
721 : { "mtudisc", CTLTYPE_INT }, \
722 : { "mtudisctimeout", CTLTYPE_INT }, \
723 : { "ipsec-comp-alg", CTLTYPE_STRING }, \
724 : { "ifq", CTLTYPE_NODE }, \
725 : { "mforwarding", CTLTYPE_INT }, \
726 : { "multipath", CTLTYPE_INT }, \
727 : { "stats", CTLTYPE_STRUCT }, \
728 : { "mrtproto", CTLTYPE_INT }, \
729 : { "mrtstats", CTLTYPE_STRUCT }, \
730 : { "arpqueued", CTLTYPE_INT }, \
731 : { "mrtmfc", CTLTYPE_STRUCT }, \
732 : { "mrtvif", CTLTYPE_STRUCT }, \
733 : { "arptimeout", CTLTYPE_INT }, \
734 : { "arpdown", CTLTYPE_INT }, \
735 : }
736 : #define IPCTL_VARS { \
737 : NULL, \
738 : &ipforwarding, \
739 : &ipsendredirects, \
740 : &ip_defttl, \
741 : NULL, \
742 : NULL, \
743 : &ip_directedbcast, \
744 : &ipport_firstauto, \
745 : &ipport_lastauto, \
746 : &ipport_hifirstauto, \
747 : &ipport_hilastauto, \
748 : &ip_maxqueue, \
749 : NULL /* encdebug */, \
750 : NULL /* ipsecstat */, \
751 : NULL /* ipsec_expire_acquire */, \
752 : NULL /* ipsec_keep_invalid */, \
753 : NULL /* ipsec_require_pfs */, \
754 : NULL /* ipsec_soft_allocations */, \
755 : NULL /* ipsec_exp_allocations */, \
756 : NULL /* ipsec_soft_bytes */, \
757 : NULL /* ipsec_exp_bytes */, \
758 : NULL /* ipsec_exp_timeout */, \
759 : NULL /* ipsec_soft_timeout */, \
760 : NULL /* ipsec_soft_first_use */, \
761 : NULL /* ipsec_exp_first_use */, \
762 : NULL, \
763 : NULL, \
764 : NULL, \
765 : NULL, \
766 : NULL, \
767 : NULL, \
768 : &ipmforwarding, \
769 : &ipmultipath, \
770 : NULL, \
771 : NULL, \
772 : NULL, \
773 : &la_hold_total, \
774 : NULL, \
775 : NULL, \
776 : &arpt_keep, \
777 : &arpt_down, \
778 : }
779 :
780 : #endif /* __BSD_VISIBLE */
781 :
782 : /* INET6 stuff */
783 : #define __KAME_NETINET_IN_H_INCLUDED_
784 : #include <netinet6/in6.h>
785 : #undef __KAME_NETINET_IN_H_INCLUDED_
786 :
787 : #ifndef _KERNEL
788 : #if __BSD_VISIBLE
789 : __BEGIN_DECLS
790 : int bindresvport(int, struct sockaddr_in *);
791 : struct sockaddr;
792 : int bindresvport_sa(int, struct sockaddr *);
793 : __END_DECLS
794 : #endif /* __BSD_VISIBLE */
795 : #endif /* !_KERNEL */
796 :
797 : #ifdef _KERNEL
798 : extern const u_char inetctlerrmap[];
799 : extern const struct in_addr zeroin_addr;
800 :
801 : struct mbuf;
802 : struct sockaddr;
803 : struct sockaddr_in;
804 : struct ifaddr;
805 : struct in_ifaddr;
806 :
807 : void ipv4_input(struct ifnet *, struct mbuf *);
808 :
809 : int in_broadcast(struct in_addr, u_int);
810 : int in_canforward(struct in_addr);
811 : int in_cksum(struct mbuf *, int);
812 : int in4_cksum(struct mbuf *, u_int8_t, int, int);
813 : void in_proto_cksum_out(struct mbuf *, struct ifnet *);
814 : void in_ifdetach(struct ifnet *);
815 : int in_mask2len(struct in_addr *);
816 : void in_len2mask(struct in_addr *, int);
817 : int in_nam2sin(const struct mbuf *, struct sockaddr_in **);
818 :
819 : char *inet_ntoa(struct in_addr);
820 : int inet_nat64(int, const void *, void *, const void *, u_int8_t);
821 : int inet_nat46(int, const void *, void *, const void *, u_int8_t);
822 :
823 : const char *inet_ntop(int, const void *, char *, socklen_t);
824 : const char *sockaddr_ntop(struct sockaddr *, char *, size_t);
825 :
826 : #define in_hosteq(s,t) ((s).s_addr == (t).s_addr)
827 : #define in_nullhost(x) ((x).s_addr == INADDR_ANY)
828 :
829 : /*
830 : * Convert between address family specific and general structs.
831 : * Inline functions check the source type and are stricter than
832 : * casts or defines.
833 : */
834 :
835 : static inline struct sockaddr_in *
836 0 : satosin(struct sockaddr *sa)
837 : {
838 0 : return ((struct sockaddr_in *)(sa));
839 : }
840 :
841 : static inline struct sockaddr *
842 0 : sintosa(struct sockaddr_in *sin)
843 : {
844 0 : return ((struct sockaddr *)(sin));
845 : }
846 :
847 : static inline struct in_ifaddr *
848 0 : ifatoia(struct ifaddr *ifa)
849 : {
850 0 : return ((struct in_ifaddr *)(ifa));
851 : }
852 : #endif /* _KERNEL */
853 : #endif /* _NETINET_IN_H_ */
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