1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
|
/* $OpenBSD: in.h,v 1.89 2011/06/15 09:11:01 mikeb Exp $ */
/* $NetBSD: in.h,v 1.20 1996/02/13 23:41:47 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in.h 8.3 (Berkeley) 1/3/94
*/
/*
* Constants and structures defined by the internet system,
* Per RFC 790, September 1981, and numerous additions.
*/
#ifndef _NETINET_IN_H_
#define _NETINET_IN_H_
/*
* Protocols
*/
#define IPPROTO_IP 0 /* dummy for IP */
#define IPPROTO_HOPOPTS IPPROTO_IP /* Hop-by-hop option header */
#define IPPROTO_ICMP 1 /* control message protocol */
#define IPPROTO_IGMP 2 /* group mgmt protocol */
#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
#define IPPROTO_IPIP 4 /* IP inside IP */
#define IPPROTO_IPV4 IPPROTO_IPIP /* IP inside IP */
#define IPPROTO_TCP 6 /* tcp */
#define IPPROTO_EGP 8 /* exterior gateway protocol */
#define IPPROTO_PUP 12 /* pup */
#define IPPROTO_UDP 17 /* user datagram protocol */
#define IPPROTO_IDP 22 /* xns idp */
#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
#define IPPROTO_IPV6 41 /* IPv6 in IPv6 */
#define IPPROTO_ROUTING 43 /* Routing header */
#define IPPROTO_FRAGMENT 44 /* Fragmentation/reassembly header */
#define IPPROTO_RSVP 46 /* resource reservation */
#define IPPROTO_GRE 47 /* GRE encap, RFCs 1701/1702 */
#define IPPROTO_ESP 50 /* Encap. Security Payload */
#define IPPROTO_AH 51 /* Authentication header */
#define IPPROTO_MOBILE 55 /* IP Mobility, RFC 2004 */
#define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */
#define IPPROTO_NONE 59 /* No next header */
#define IPPROTO_DSTOPTS 60 /* Destination options header */
#define IPPROTO_EON 80 /* ISO cnlp */
#define IPPROTO_ETHERIP 97 /* Ethernet in IPv4 */
#define IPPROTO_ENCAP 98 /* encapsulation header */
#define IPPROTO_PIM 103 /* Protocol indep. multicast */
#define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */
#define IPPROTO_CARP 112 /* CARP */
#define IPPROTO_MPLS 137 /* unicast MPLS packet */
#define IPPROTO_PFSYNC 240 /* PFSYNC */
#define IPPROTO_RAW 255 /* raw IP packet */
#define IPPROTO_MAX 256
/* Only used internally, so it can be outside the range of valid IP protocols */
#define IPPROTO_DIVERT 258 /* Divert sockets */
/*
* From FreeBSD:
*
* Local port number conventions:
*
* When a user does a bind(2) or connect(2) with a port number of zero,
* a non-conflicting local port address is chosen.
* The default range is IPPORT_RESERVED through
* IPPORT_USERRESERVED, although that is settable by sysctl.
*
* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
* default assignment range.
*
* The value IP_PORTRANGE_DEFAULT causes the default behavior.
*
* The value IP_PORTRANGE_HIGH changes the range of candidate port numbers
* into the "high" range. These are reserved for client outbound connections
* which do not want to be filtered by any firewalls.
*
* The value IP_PORTRANGE_LOW changes the range to the "low" are
* that is (by convention) restricted to privileged processes. This
* convention is based on "vouchsafe" principles only. It is only secure
* if you trust the remote host to restrict these ports.
*
* The default range of ports and the high range can be changed by
* sysctl(3). (net.inet.ip.port{hi}{first,last})
*
* Changing those values has bad security implications if you are
* using a a stateless firewall that is allowing packets outside of that
* range in order to allow transparent outgoing connections.
*
* Such a firewall configuration will generally depend on the use of these
* default values. If you change them, you may find your Security
* Administrator looking for you with a heavy object.
*/
/*
* Ports < IPPORT_RESERVED are reserved for
* privileged processes (e.g. root).
* Ports > IPPORT_USERRESERVED are reserved
* for servers, not necessarily privileged.
*/
#define IPPORT_RESERVED 1024
#define IPPORT_USERRESERVED 49151
/*
* Default local port range to use by setting IP_PORTRANGE_HIGH
*/
#define IPPORT_HIFIRSTAUTO 49152
#define IPPORT_HILASTAUTO 65535
/*
* IP Version 4 Internet address (a structure for historical reasons)
*/
struct in_addr {
in_addr_t s_addr;
};
/* last return value of *_input(), meaning "all job for this pkt is done". */
#define IPPROTO_DONE 257
/*
* Definitions of bits in internet address integers.
* On subnets, the decomposition of addresses to host and net parts
* is done according to subnet mask, not the masks here.
*
* By byte-swapping the constants, we avoid ever having to byte-swap IP
* addresses inside the kernel. Unfortunately, user-level programs rely
* on these macros not doing byte-swapping.
*/
#ifdef _KERNEL
#define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x)))
#else
#define __IPADDR(x) ((u_int32_t)(x))
#endif
#define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \
__IPADDR(0x00000000))
#define IN_CLASSA_NET __IPADDR(0xff000000)
#define IN_CLASSA_NSHIFT 24
#define IN_CLASSA_HOST __IPADDR(0x00ffffff)
#define IN_CLASSA_MAX 128
#define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \
__IPADDR(0x80000000))
#define IN_CLASSB_NET __IPADDR(0xffff0000)
#define IN_CLASSB_NSHIFT 16
#define IN_CLASSB_HOST __IPADDR(0x0000ffff)
#define IN_CLASSB_MAX 65536
#define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \
__IPADDR(0xc0000000))
#define IN_CLASSC_NET __IPADDR(0xffffff00)
#define IN_CLASSC_NSHIFT 8
#define IN_CLASSC_HOST __IPADDR(0x000000ff)
#define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xe0000000))
/* These ones aren't really net and host fields, but routing needn't know. */
#define IN_CLASSD_NET __IPADDR(0xf0000000)
#define IN_CLASSD_NSHIFT 28
#define IN_CLASSD_HOST __IPADDR(0x0fffffff)
#define IN_MULTICAST(i) IN_CLASSD(i)
#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xf0000000))
#define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xf0000000))
#define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \
__IPADDR(0xe0000000))
#ifdef _KERNEL
#define IN_CLASSFULBROADCAST(i, b) \
((IN_CLASSC(b) && (b | IN_CLASSC_HOST) == i) || \
(IN_CLASSB(b) && (b | IN_CLASSB_HOST) == i) || \
(IN_CLASSA(b) && (b | IN_CLASSA_HOST) == i))
#endif /* _KERNEL */
#define INADDR_ANY __IPADDR(0x00000000)
#define INADDR_LOOPBACK __IPADDR(0x7f000001)
#define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */
#ifndef _KERNEL
#define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */
#endif
#define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */
#define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */
#define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */
#define INADDR_PFSYNC_GROUP __IPADDR(0xe00000f0) /* 224.0.0.240 */
#define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */
#define IN_LOOPBACKNET 127 /* official! */
/*
* IP Version 4 socket address.
*/
struct sockaddr_in {
u_int8_t sin_len;
sa_family_t sin_family;
in_port_t sin_port;
struct in_addr sin_addr;
int8_t sin_zero[8];
};
/*
* Structure used to describe IP options.
* Used to store options internally, to pass them to a process,
* or to restore options retrieved earlier.
* The ip_dst is used for the first-hop gateway when using a source route
* (this gets put into the header proper).
*/
struct ip_opts {
struct in_addr ip_dst; /* first hop, 0 w/o src rt */
#if defined(__cplusplus)
int8_t Ip_opts[40]; /* cannot have same name as class */
#else
int8_t ip_opts[40]; /* actually variable in size */
#endif
};
/*
* Options for use with [gs]etsockopt at the IP level.
* First word of comment is data type; bool is stored in int.
*/
#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
#define IP_HDRINCL 2 /* int; header is included with data */
#define IP_TOS 3 /* int; IP type of service and preced. */
#define IP_TTL 4 /* int; IP time to live */
#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
#define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */
#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
/* 14-17 left empty for future compatibility with FreeBSD */
#define IP_PORTRANGE 19 /* int; range to choose for unspec port */
#define IP_AUTH_LEVEL 20 /* int; authentication used */
#define IP_ESP_TRANS_LEVEL 21 /* int; transport encryption */
#define IP_ESP_NETWORK_LEVEL 22 /* int; full-packet encryption */
#define IP_IPSEC_LOCAL_ID 23 /* buf; IPsec local ID */
#define IP_IPSEC_REMOTE_ID 24 /* buf; IPsec remote ID */
#define IP_IPSEC_LOCAL_CRED 25 /* buf; IPsec local credentials */
#define IP_IPSEC_REMOTE_CRED 26 /* buf; IPsec remote credentials */
#define IP_IPSEC_LOCAL_AUTH 27 /* buf; IPsec local auth material */
#define IP_IPSEC_REMOTE_AUTH 28 /* buf; IPsec remote auth material */
#define IP_IPCOMP_LEVEL 29 /* int; compression used */
#define IP_RECVIF 30 /* bool; receive reception if w/dgram */
#define IP_RECVTTL 31 /* bool; receive IP TTL w/dgram */
#define IP_MINTTL 32 /* minimum TTL for packet or drop */
#define IP_RECVDSTPORT 33 /* bool; receive IP dst port w/dgram */
#define IP_PIPEX 34 /* bool; using PIPEX */
#define IP_RECVRTABLE 35 /* bool; receive rdomain w/dgram */
#define IP_RTABLE 0x1021 /* int; routing table, see SO_RTABLE */
/*
* Security levels - IPsec, not IPSO
*/
#define IPSEC_LEVEL_BYPASS 0x00 /* Bypass policy altogether */
#define IPSEC_LEVEL_NONE 0x00 /* Send clear, accept any */
#define IPSEC_LEVEL_AVAIL 0x01 /* Send secure if SA available */
#define IPSEC_LEVEL_USE 0x02 /* Send secure, accept any */
#define IPSEC_LEVEL_REQUIRE 0x03 /* Require secure inbound, also use */
#define IPSEC_LEVEL_UNIQUE 0x04 /* Use outbound SA that is unique */
#define IPSEC_LEVEL_DEFAULT IPSEC_LEVEL_AVAIL
#define IPSEC_AUTH_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
#define IPSEC_ESP_TRANS_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
#define IPSEC_ESP_NETWORK_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
#define IPSEC_IPCOMP_LEVEL_DEFAULT IPSEC_LEVEL_DEFAULT
/*
* Defaults and limits for options
*/
#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
/*
* The imo_membership vector for each socket starts at IP_MIN_MEMBERSHIPS
* and is dynamically allocated at run-time, bounded by IP_MAX_MEMBERSHIPS,
* and is reallocated when needed, sized according to a power-of-two increment.
*/
#define IP_MIN_MEMBERSHIPS 15
#define IP_MAX_MEMBERSHIPS 4095
/*
* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
*/
struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
};
/*
* Argument for IP_PORTRANGE:
* - which range to search when port is unspecified at bind() or connect()
*/
#define IP_PORTRANGE_DEFAULT 0 /* default range */
#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */
#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */
/*
* Buffer lengths for strings containing printable IP addresses
*/
#define INET_ADDRSTRLEN 16
/*
* Definitions for inet sysctl operations.
*
* Third level is protocol number.
* Fourth level is desired variable within that protocol.
*/
#define IPPROTO_MAXID (IPPROTO_DIVERT + 1) /* don't list to IPPROTO_MAX */
#define CTL_IPPROTO_NAMES { \
{ "ip", CTLTYPE_NODE }, \
{ "icmp", CTLTYPE_NODE }, \
{ "igmp", CTLTYPE_NODE }, \
{ "ggp", CTLTYPE_NODE }, \
{ "ipip", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ "tcp", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ "egp", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "pup", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "udp", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "gre", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "esp", CTLTYPE_NODE }, \
{ "ah", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "mobileip", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "etherip", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "pim", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "ipcomp", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "carp", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "pfsync", CTLTYPE_NODE }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "divert", CTLTYPE_NODE }, \
}
/*
* Names for IP sysctl objects
*/
#define IPCTL_FORWARDING 1 /* act as router */
#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
#define IPCTL_DEFTTL 3 /* default TTL */
#ifdef notyet
#define IPCTL_DEFMTU 4 /* default MTU */
#endif
#define IPCTL_SOURCEROUTE 5 /* may perform source routes */
#define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */
#define IPCTL_IPPORT_FIRSTAUTO 7
#define IPCTL_IPPORT_LASTAUTO 8
#define IPCTL_IPPORT_HIFIRSTAUTO 9
#define IPCTL_IPPORT_HILASTAUTO 10
#define IPCTL_IPPORT_MAXQUEUE 11
#define IPCTL_ENCDEBUG 12
#ifdef notdef /*obsolete*/
#define IPCTL_GIF_TTL 13 /* default TTL for gif encap packet */
#endif
#define IPCTL_IPSEC_EXPIRE_ACQUIRE 14 /* How long to wait for key mgmt. */
#define IPCTL_IPSEC_EMBRYONIC_SA_TIMEOUT 15 /* new SA lifetime */
#define IPCTL_IPSEC_REQUIRE_PFS 16
#define IPCTL_IPSEC_SOFT_ALLOCATIONS 17
#define IPCTL_IPSEC_ALLOCATIONS 18
#define IPCTL_IPSEC_SOFT_BYTES 19
#define IPCTL_IPSEC_BYTES 20
#define IPCTL_IPSEC_TIMEOUT 21
#define IPCTL_IPSEC_SOFT_TIMEOUT 22
#define IPCTL_IPSEC_SOFT_FIRSTUSE 23
#define IPCTL_IPSEC_FIRSTUSE 24
#define IPCTL_IPSEC_ENC_ALGORITHM 25
#define IPCTL_IPSEC_AUTH_ALGORITHM 26
#define IPCTL_MTUDISC 27 /* allow path MTU discovery */
#define IPCTL_MTUDISCTIMEOUT 28 /* allow path MTU discovery */
#define IPCTL_IPSEC_IPCOMP_ALGORITHM 29
#define IPCTL_IFQUEUE 30
#define IPCTL_MFORWARDING 31
#define IPCTL_MULTIPATH 32
#define IPCTL_STATS 33 /* IP statistics */
#define IPCTL_MRTPROTO 34 /* type of multicast */
#define IPCTL_MRTSTATS 35
#define IPCTL_ARPQUEUED 36
#define IPCTL_MAXID 37
#define IPCTL_NAMES { \
{ 0, 0 }, \
{ "forwarding", CTLTYPE_INT }, \
{ "redirect", CTLTYPE_INT }, \
{ "ttl", CTLTYPE_INT }, \
/* { "mtu", CTLTYPE_INT }, */ { 0, 0 }, \
{ "sourceroute", CTLTYPE_INT }, \
{ "directed-broadcast", CTLTYPE_INT }, \
{ "portfirst", CTLTYPE_INT }, \
{ "portlast", CTLTYPE_INT }, \
{ "porthifirst", CTLTYPE_INT }, \
{ "porthilast", CTLTYPE_INT }, \
{ "maxqueue", CTLTYPE_INT }, \
{ "encdebug", CTLTYPE_INT }, \
{ 0, 0 }, \
{ "ipsec-expire-acquire", CTLTYPE_INT }, \
{ "ipsec-invalid-life", CTLTYPE_INT }, \
{ "ipsec-pfs", CTLTYPE_INT }, \
{ "ipsec-soft-allocs", CTLTYPE_INT }, \
{ "ipsec-allocs", CTLTYPE_INT }, \
{ "ipsec-soft-bytes", CTLTYPE_INT }, \
{ "ipsec-bytes", CTLTYPE_INT }, \
{ "ipsec-timeout", CTLTYPE_INT }, \
{ "ipsec-soft-timeout", CTLTYPE_INT }, \
{ "ipsec-soft-firstuse", CTLTYPE_INT }, \
{ "ipsec-firstuse", CTLTYPE_INT }, \
{ "ipsec-enc-alg", CTLTYPE_STRING }, \
{ "ipsec-auth-alg", CTLTYPE_STRING }, \
{ "mtudisc", CTLTYPE_INT }, \
{ "mtudisctimeout", CTLTYPE_INT }, \
{ "ipsec-comp-alg", CTLTYPE_STRING }, \
{ "ifq", CTLTYPE_NODE }, \
{ "mforwarding", CTLTYPE_INT }, \
{ "multipath", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
{ "mrtproto", CTLTYPE_INT }, \
{ "mrtstats", CTLTYPE_STRUCT }, \
{ "arpqueued", CTLTYPE_INT }, \
}
#define IPCTL_VARS { \
NULL, \
&ipforwarding, \
&ipsendredirects, \
&ip_defttl, \
NULL, \
NULL, \
&ip_directedbcast, \
&ipport_firstauto, \
&ipport_lastauto, \
&ipport_hifirstauto, \
&ipport_hilastauto, \
&ip_maxqueue, \
&encdebug, \
NULL, \
&ipsec_expire_acquire, \
&ipsec_keep_invalid, \
&ipsec_require_pfs, \
&ipsec_soft_allocations, \
&ipsec_exp_allocations, \
&ipsec_soft_bytes, \
&ipsec_exp_bytes, \
&ipsec_exp_timeout, \
&ipsec_soft_timeout, \
&ipsec_soft_first_use, \
&ipsec_exp_first_use, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
&ipmforwarding, \
&ipmultipath, \
NULL, \
NULL, \
NULL, \
&la_hold_total \
}
/* INET6 stuff */
#define __KAME_NETINET_IN_H_INCLUDED_
#include <netinet6/in6.h>
#undef __KAME_NETINET_IN_H_INCLUDED_
#ifndef _KERNEL
#include <sys/cdefs.h>
__BEGIN_DECLS
int bindresvport(int, struct sockaddr_in *);
struct sockaddr;
int bindresvport_sa(int, struct sockaddr *);
__END_DECLS
#else
/*
* in_cksum_phdr:
*
* Compute significant parts of the IPv4 checksum pseudo-header
* for use in a delayed TCP/UDP checksum calculation.
*
* Args:
*
* src Source IP address
* dst Destination IP address
* lenproto htons(proto-hdr-len + proto-number)
*/
static __inline u_int16_t __attribute__((__unused__))
in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto)
{
u_int32_t sum;
sum = lenproto +
(u_int16_t)(src >> 16) +
(u_int16_t)(src /*& 0xffff*/) +
(u_int16_t)(dst >> 16) +
(u_int16_t)(dst /*& 0xffff*/);
sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
if (sum > 0xffff)
sum -= 0xffff;
return (sum);
}
/*
* in_cksum_addword:
*
* Add the two 16-bit network-order values, carry, and return.
*/
static __inline u_int16_t __attribute__((__unused__))
in_cksum_addword(u_int16_t a, u_int16_t b)
{
u_int32_t sum = a + b;
if (sum > 0xffff)
sum -= 0xffff;
return (sum);
}
extern struct in_addr zeroin_addr;
int in_broadcast(struct in_addr, struct ifnet *, u_int);
int in_canforward(struct in_addr);
int in_cksum(struct mbuf *, int);
int in4_cksum(struct mbuf *, u_int8_t, int, int);
void in_delayed_cksum(struct mbuf *);
int in_localaddr(struct in_addr, u_int);
void in_socktrim(struct sockaddr_in *);
char *inet_ntoa(struct in_addr);
void in_proto_cksum_out(struct mbuf *, struct ifnet *);
#define in_hosteq(s,t) ((s).s_addr == (t).s_addr)
#define in_nullhost(x) ((x).s_addr == INADDR_ANY)
#define satosin(sa) ((struct sockaddr_in *)(sa))
#define sintosa(sin) ((struct sockaddr *)(sin))
#define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
#endif /* _KERNEL */
#endif /* _NETINET_IN_H_ */
|