summaryrefslogtreecommitdiffstats
path: root/netwerk/sctp/src/netinet/sctp.h
blob: a5ff4eb0bc5443ebb9496c50d6627298c3387c07 (plain)
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
/*-
 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * a) Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * b) 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.
 *
 * c) Neither the name of Cisco Systems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
 */

#ifdef __FreeBSD__
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp.h 279859 2015-03-10 19:49:25Z tuexen $");
#endif

#ifndef _NETINET_SCTP_H_
#define _NETINET_SCTP_H_

#if (defined(__APPLE__) || defined(__Userspace_os_Linux) || defined(__Userspace_os_Darwin))
#include <stdint.h>
#endif

#include <sys/types.h>


#if !defined(__Userspace_os_Windows)
#define SCTP_PACKED __attribute__((packed))
#else
#pragma pack (push, 1)
#define SCTP_PACKED
#endif

/*
 * SCTP protocol - RFC4960.
 */
struct sctphdr {
	uint16_t src_port;	/* source port */
	uint16_t dest_port;	/* destination port */
	uint32_t v_tag;		/* verification tag of packet */
	uint32_t checksum;	/* CRC32C checksum */
	/* chunks follow... */
} SCTP_PACKED;

/*
 * SCTP Chunks
 */
struct sctp_chunkhdr {
	uint8_t chunk_type;	/* chunk type */
	uint8_t chunk_flags;	/* chunk flags */
	uint16_t chunk_length;	/* chunk length */
	/* optional params follow */
} SCTP_PACKED;

/*
 * SCTP chunk parameters
 */
struct sctp_paramhdr {
	uint16_t param_type;	/* parameter type */
	uint16_t param_length;	/* parameter length */
} SCTP_PACKED;

/*
 * user socket options: socket API defined
 */
/*
 * read-write options
 */
#define SCTP_RTOINFO			0x00000001
#define SCTP_ASSOCINFO			0x00000002
#define SCTP_INITMSG			0x00000003
#define SCTP_NODELAY			0x00000004
#define SCTP_AUTOCLOSE			0x00000005
#define SCTP_SET_PEER_PRIMARY_ADDR	0x00000006
#define SCTP_PRIMARY_ADDR		0x00000007
#define SCTP_ADAPTATION_LAYER		0x00000008
/* same as above */
#define SCTP_ADAPTION_LAYER		0x00000008
#define SCTP_DISABLE_FRAGMENTS		0x00000009
#define SCTP_PEER_ADDR_PARAMS 		0x0000000a
#define SCTP_DEFAULT_SEND_PARAM		0x0000000b
/* ancillary data/notification interest options */
#define SCTP_EVENTS			0x0000000c /* deprecated */
/* Without this applied we will give V4 and V6 addresses on a V6 socket */
#define SCTP_I_WANT_MAPPED_V4_ADDR	0x0000000d
#define SCTP_MAXSEG 			0x0000000e
#define SCTP_DELAYED_SACK               0x0000000f
#define SCTP_FRAGMENT_INTERLEAVE        0x00000010
#define SCTP_PARTIAL_DELIVERY_POINT     0x00000011
/* authentication support */
#define SCTP_AUTH_CHUNK 		0x00000012
#define SCTP_AUTH_KEY 			0x00000013
#define SCTP_HMAC_IDENT 		0x00000014
#define SCTP_AUTH_ACTIVE_KEY 		0x00000015
#define SCTP_AUTH_DELETE_KEY 		0x00000016
#define SCTP_USE_EXT_RCVINFO		0x00000017
#define SCTP_AUTO_ASCONF		0x00000018 /* rw */
#define SCTP_MAXBURST			0x00000019 /* rw */
#define SCTP_MAX_BURST			0x00000019 /* rw */
/* assoc level context */
#define SCTP_CONTEXT                    0x0000001a /* rw */
/* explicit EOR signalling */
#define SCTP_EXPLICIT_EOR               0x0000001b
#define SCTP_REUSE_PORT                 0x0000001c /* rw */
#define SCTP_AUTH_DEACTIVATE_KEY	0x0000001d
#define SCTP_EVENT                      0x0000001e
#define SCTP_RECVRCVINFO                0x0000001f
#define SCTP_RECVNXTINFO                0x00000020
#define SCTP_DEFAULT_SNDINFO            0x00000021
#define SCTP_DEFAULT_PRINFO             0x00000022
#define SCTP_PEER_ADDR_THLDS            0x00000023
#define SCTP_REMOTE_UDP_ENCAPS_PORT     0x00000024
#define SCTP_ECN_SUPPORTED              0x00000025
#define SCTP_PR_SUPPORTED               0x00000026
#define SCTP_AUTH_SUPPORTED             0x00000027
#define SCTP_ASCONF_SUPPORTED           0x00000028
#define SCTP_RECONFIG_SUPPORTED         0x00000029
#define SCTP_NRSACK_SUPPORTED           0x00000030
#define SCTP_PKTDROP_SUPPORTED          0x00000031
#define SCTP_MAX_CWND                   0x00000032

/*
 * read-only options
 */
#define SCTP_STATUS			0x00000100
#define SCTP_GET_PEER_ADDR_INFO		0x00000101
/* authentication support */
#define SCTP_PEER_AUTH_CHUNKS 		0x00000102
#define SCTP_LOCAL_AUTH_CHUNKS 		0x00000103
#define SCTP_GET_ASSOC_NUMBER           0x00000104 /* ro */
#define SCTP_GET_ASSOC_ID_LIST          0x00000105 /* ro */
#define SCTP_TIMEOUTS                   0x00000106
#define SCTP_PR_STREAM_STATUS           0x00000107
#define SCTP_PR_ASSOC_STATUS            0x00000108

/*
 * user socket options: BSD implementation specific
 */
/*
 * Blocking I/O is enabled on any TCP type socket by default. For the UDP
 * model if this is turned on then the socket buffer is shared for send
 * resources amongst all associations.  The default for the UDP model is that
 * is SS_NBIO is set.  Which means all associations have a separate send
 * limit BUT they will NOT ever BLOCK instead you will get an error back
 * EAGAIN if you try to send too much. If you want the blocking semantics you
 * set this option at the cost of sharing one socket send buffer size amongst
 * all associations. Peeled off sockets turn this option off and block. But
 * since both TCP and peeled off sockets have only one assoc per socket this
 * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP
 * model OR peeled off UDP model, but we do allow you to do so. You just use
 * the normal syscall to toggle SS_NBIO the way you want.
 *
 * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state
 * field.
 */

#define SCTP_ENABLE_STREAM_RESET	0x00000900 /* struct sctp_assoc_value */
#define SCTP_RESET_STREAMS		0x00000901 /* struct sctp_reset_streams */
#define SCTP_RESET_ASSOC		0x00000902 /* sctp_assoc_t */
#define SCTP_ADD_STREAMS		0x00000903 /* struct sctp_add_streams */

/* For enable stream reset */
#define SCTP_ENABLE_RESET_STREAM_REQ 	0x00000001
#define SCTP_ENABLE_RESET_ASSOC_REQ 	0x00000002
#define SCTP_ENABLE_CHANGE_ASSOC_REQ 	0x00000004
#define SCTP_ENABLE_VALUE_MASK		0x00000007
/* For reset streams */
#define SCTP_STREAM_RESET_INCOMING	0x00000001
#define SCTP_STREAM_RESET_OUTGOING	0x00000002


/* here on down are more implementation specific */
#define SCTP_SET_DEBUG_LEVEL		0x00001005
#define SCTP_CLR_STAT_LOG               0x00001007
/* CMT ON/OFF socket option */
#define SCTP_CMT_ON_OFF                 0x00001200
#define SCTP_CMT_USE_DAC                0x00001201
/* JRS - Pluggable Congestion Control Socket option */
#define SCTP_PLUGGABLE_CC               0x00001202
/* RS - Pluggable Stream Scheduling Socket option */
#define SCTP_PLUGGABLE_SS		0x00001203
#define SCTP_SS_VALUE			0x00001204
#define SCTP_CC_OPTION			0x00001205 /* Options for CC modules */
/* read only */
#define SCTP_GET_SNDBUF_USE		0x00001101
#define SCTP_GET_STAT_LOG		0x00001103
#define SCTP_PCB_STATUS			0x00001104
#define SCTP_GET_NONCE_VALUES           0x00001105


/* Special hook for dynamically setting primary for all assoc's,
 * this is a write only option that requires root privilege.
 */
#define SCTP_SET_DYNAMIC_PRIMARY        0x00002001

/* VRF (virtual router feature) and multi-VRF support
 * options. VRF's provide splits within a router
 * that give the views of multiple routers. A
 * standard host, without VRF support, is just
 * a single VRF. If VRF's are supported then
 * the transport must be VRF aware. This means
 * that every socket call coming in must be directed
 * within the endpoint to one of the VRF's it belongs
 * to. The endpoint, before binding, may select
 * the "default" VRF it is in by using a set socket
 * option with SCTP_VRF_ID. This will also
 * get propagated to the default VRF. Once the
 * endpoint binds an address then it CANNOT add
 * additional VRF's to become a Multi-VRF endpoint.
 *
 * Before BINDING additional VRF's can be added with
 * the SCTP_ADD_VRF_ID call or deleted with
 * SCTP_DEL_VRF_ID.
 *
 * Associations are ALWAYS contained inside a single
 * VRF. They cannot reside in two (or more) VRF's. Incoming
 * packets, assuming the router is VRF aware, can always
 * tell us what VRF they arrived on. A host not supporting
 * any VRF's will find that the packets always arrived on the
 * single VRF that the host has.
 *
 */

#define SCTP_VRF_ID			0x00003001
#define SCTP_ADD_VRF_ID			0x00003002
#define SCTP_GET_VRF_IDS		0x00003003
#define SCTP_GET_ASOC_VRF               0x00003004
#define SCTP_DEL_VRF_ID                 0x00003005

/*
 * If you enable packet logging you can get
 * a poor mans ethereal output in binary
 * form. Note this is a compile option to
 * the kernel,  SCTP_PACKET_LOGGING, and
 * without it in your kernel you
 * will get a EOPNOTSUPP
 */
#define SCTP_GET_PACKET_LOG             0x00004001

/*
 * hidden implementation specific options these are NOT user visible (should
 * move out of sctp.h)
 */
/* sctp_bindx() flags as hidden socket options */
#define SCTP_BINDX_ADD_ADDR		0x00008001
#define SCTP_BINDX_REM_ADDR		0x00008002
/* Hidden socket option that gets the addresses */
#define SCTP_GET_PEER_ADDRESSES		0x00008003
#define SCTP_GET_LOCAL_ADDRESSES	0x00008004
/* return the total count in bytes needed to hold all local addresses bound */
#define SCTP_GET_LOCAL_ADDR_SIZE	0x00008005
/* Return the total count in bytes needed to hold the remote address */
#define SCTP_GET_REMOTE_ADDR_SIZE	0x00008006
/* hidden option for connectx */
#define SCTP_CONNECT_X			0x00008007
/* hidden option for connectx_delayed, part of sendx */
#define SCTP_CONNECT_X_DELAYED		0x00008008
#define SCTP_CONNECT_X_COMPLETE         0x00008009
/* hidden socket option based sctp_peeloff */
#define SCTP_PEELOFF                    0x0000800a
/* the real worker for sctp_getaddrlen() */
#define SCTP_GET_ADDR_LEN               0x0000800b
#if defined(__APPLE__)
/* temporary workaround for Apple listen() issue, no args used */
#define SCTP_LISTEN_FIX			0x0000800c
#endif
#if defined(__Windows__)
/* workaround for Cygwin on Windows: returns the SOCKET handle */
#define SCTP_GET_HANDLE			0x0000800d
#endif
/* Debug things that need to be purged */
#define SCTP_SET_INITIAL_DBG_SEQ	0x00009f00

/* JRS - Supported congestion control modules for pluggable
 * congestion control
 */
/* Standard TCP Congestion Control */
#define SCTP_CC_RFC2581		0x00000000
/* High Speed TCP Congestion Control (Floyd) */
#define SCTP_CC_HSTCP		0x00000001
/* HTCP Congestion Control */
#define SCTP_CC_HTCP		0x00000002
/* RTCC Congestion Control - RFC2581 plus */
#define SCTP_CC_RTCC            0x00000003

#define SCTP_CC_OPT_RTCC_SETMODE	0x00002000
#define SCTP_CC_OPT_USE_DCCC_ECN	0x00002001
#define SCTP_CC_OPT_STEADY_STEP         0x00002002

#define SCTP_CMT_OFF            0
#define SCTP_CMT_BASE           1
#define SCTP_CMT_RPV1           2
#define SCTP_CMT_RPV2           3
#define SCTP_CMT_MPTCP          4
#define SCTP_CMT_MAX            SCTP_CMT_MPTCP

/* RS - Supported stream scheduling modules for pluggable
 * stream scheduling
 */
/* Default simple round-robin */
#define SCTP_SS_DEFAULT			0x00000000
/* Real round-robin */
#define SCTP_SS_ROUND_ROBIN		0x00000001
/* Real round-robin per packet */
#define SCTP_SS_ROUND_ROBIN_PACKET	0x00000002
/* Priority */
#define SCTP_SS_PRIORITY		0x00000003
/* Fair Bandwidth */
#define SCTP_SS_FAIR_BANDWITH		0x00000004
/* First-come, first-serve */
#define SCTP_SS_FIRST_COME		0x00000005


/* fragment interleave constants
 * setting must be one of these or
 * EINVAL returned.
 */
#define SCTP_FRAG_LEVEL_0    0x00000000
#define SCTP_FRAG_LEVEL_1    0x00000001
#define SCTP_FRAG_LEVEL_2    0x00000002

/*
 * user state values
 */
#define SCTP_CLOSED			0x0000
#define SCTP_BOUND			0x1000
#define SCTP_LISTEN			0x2000
#define SCTP_COOKIE_WAIT		0x0002
#define SCTP_COOKIE_ECHOED		0x0004
#define SCTP_ESTABLISHED		0x0008
#define SCTP_SHUTDOWN_SENT		0x0010
#define SCTP_SHUTDOWN_RECEIVED		0x0020
#define SCTP_SHUTDOWN_ACK_SENT		0x0040
#define SCTP_SHUTDOWN_PENDING		0x0080

/*
 * SCTP operational error codes (user visible)
 */
#define SCTP_CAUSE_NO_ERROR		0x0000
#define SCTP_CAUSE_INVALID_STREAM	0x0001
#define SCTP_CAUSE_MISSING_PARAM	0x0002
#define SCTP_CAUSE_STALE_COOKIE		0x0003
#define SCTP_CAUSE_OUT_OF_RESC		0x0004
#define SCTP_CAUSE_UNRESOLVABLE_ADDR	0x0005
#define SCTP_CAUSE_UNRECOG_CHUNK	0x0006
#define SCTP_CAUSE_INVALID_PARAM	0x0007
#define SCTP_CAUSE_UNRECOG_PARAM	0x0008
#define SCTP_CAUSE_NO_USER_DATA		0x0009
#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN	0x000a
#define SCTP_CAUSE_RESTART_W_NEWADDR	0x000b
#define SCTP_CAUSE_USER_INITIATED_ABT	0x000c
#define SCTP_CAUSE_PROTOCOL_VIOLATION	0x000d

/* Error causes from RFC5061 */
#define SCTP_CAUSE_DELETING_LAST_ADDR	0x00a0
#define SCTP_CAUSE_RESOURCE_SHORTAGE	0x00a1
#define SCTP_CAUSE_DELETING_SRC_ADDR	0x00a2
#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK	0x00a3
#define SCTP_CAUSE_REQUEST_REFUSED	0x00a4

/* Error causes from nat-draft */
#define SCTP_CAUSE_NAT_COLLIDING_STATE  0x00b0
#define SCTP_CAUSE_NAT_MISSING_STATE    0x00b1

/* Error causes from RFC4895 */
#define SCTP_CAUSE_UNSUPPORTED_HMACID	0x0105

/*
 * error cause parameters (user visible)
 */
struct sctp_gen_error_cause {
	uint16_t code;
	uint16_t length;
	uint8_t info[];
} SCTP_PACKED;

struct sctp_error_cause {
	uint16_t code;
	uint16_t length;
	/* optional cause-specific info may follow */
} SCTP_PACKED;

struct sctp_error_invalid_stream {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_INVALID_STREAM */
	uint16_t stream_id;	/* stream id of the DATA in error */
	uint16_t reserved;
} SCTP_PACKED;

struct sctp_error_missing_param {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_MISSING_PARAM */
	uint32_t num_missing_params;	/* number of missing parameters */
	/* uint16_t param_type's follow */
} SCTP_PACKED;

struct sctp_error_stale_cookie {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_STALE_COOKIE */
	uint32_t stale_time;	/* time in usec of staleness */
} SCTP_PACKED;

struct sctp_error_out_of_resource {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_OUT_OF_RESOURCES */
} SCTP_PACKED;

struct sctp_error_unresolv_addr {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRESOLVABLE_ADDR */

} SCTP_PACKED;

struct sctp_error_unrecognized_chunk {
	struct sctp_error_cause cause;	/* code=SCTP_ERROR_UNRECOG_CHUNK */
	struct sctp_chunkhdr ch;/* header from chunk in error */
} SCTP_PACKED;

struct sctp_error_no_user_data {
	struct sctp_error_cause cause;	/* code=SCTP_CAUSE_NO_USER_DATA */
	uint32_t tsn;			/* TSN of the empty data chunk */
} SCTP_PACKED;

/*
 * Main SCTP chunk types we place these here so natd and f/w's in user land
 * can find them.
 */
/************0x00 series ***********/
#define SCTP_DATA		0x00
#define SCTP_INITIATION		0x01
#define SCTP_INITIATION_ACK	0x02
#define SCTP_SELECTIVE_ACK	0x03
#define SCTP_HEARTBEAT_REQUEST	0x04
#define SCTP_HEARTBEAT_ACK	0x05
#define SCTP_ABORT_ASSOCIATION	0x06
#define SCTP_SHUTDOWN		0x07
#define SCTP_SHUTDOWN_ACK	0x08
#define SCTP_OPERATION_ERROR	0x09
#define SCTP_COOKIE_ECHO	0x0a
#define SCTP_COOKIE_ACK		0x0b
#define SCTP_ECN_ECHO		0x0c
#define SCTP_ECN_CWR		0x0d
#define SCTP_SHUTDOWN_COMPLETE	0x0e
/* RFC4895 */
#define SCTP_AUTHENTICATION     0x0f
/* EY nr_sack chunk id*/
#define SCTP_NR_SELECTIVE_ACK	0x10
/************0x40 series ***********/
/************0x80 series ***********/
/* RFC5061 */
#define	SCTP_ASCONF_ACK		0x80
/* draft-ietf-stewart-pktdrpsctp */
#define SCTP_PACKET_DROPPED	0x81
/* draft-ietf-stewart-strreset-xxx */
#define SCTP_STREAM_RESET       0x82

/* RFC4820                         */
#define SCTP_PAD_CHUNK          0x84
/************0xc0 series ***********/
/* RFC3758 */
#define SCTP_FORWARD_CUM_TSN	0xc0
/* RFC5061 */
#define SCTP_ASCONF		0xc1


/* ABORT and SHUTDOWN COMPLETE FLAG */
#define SCTP_HAD_NO_TCB		0x01

/* Packet dropped flags */
#define SCTP_FROM_MIDDLE_BOX	SCTP_HAD_NO_TCB
#define SCTP_BADCRC		0x02
#define SCTP_PACKET_TRUNCATED	0x04

/* Flag for ECN -CWR */
#define SCTP_CWR_REDUCE_OVERRIDE 0x01
#define SCTP_CWR_IN_SAME_WINDOW  0x02

#define SCTP_SAT_NETWORK_MIN	400	/* min ms for RTT to set satellite
					 * time */
#define SCTP_SAT_NETWORK_BURST_INCR  2	/* how many times to multiply maxburst
					 * in sat */

/* Data Chuck Specific Flags */
#define SCTP_DATA_FRAG_MASK        0x03
#define SCTP_DATA_MIDDLE_FRAG      0x00
#define SCTP_DATA_LAST_FRAG        0x01
#define SCTP_DATA_FIRST_FRAG       0x02
#define SCTP_DATA_NOT_FRAG         0x03
#define SCTP_DATA_UNORDERED        0x04
#define SCTP_DATA_SACK_IMMEDIATELY 0x08
/* ECN Nonce: SACK Chunk Specific Flags */
#define SCTP_SACK_NONCE_SUM        0x01

/* CMT DAC algorithm SACK flag */
#define SCTP_SACK_CMT_DAC          0x80

/*
 * PCB flags (in sctp_flags bitmask).
 * Note the features and flags are meant
 * for use by netstat.
 */
#define SCTP_PCB_FLAGS_UDPTYPE		0x00000001
#define SCTP_PCB_FLAGS_TCPTYPE		0x00000002
#define SCTP_PCB_FLAGS_BOUNDALL		0x00000004
#define SCTP_PCB_FLAGS_ACCEPTING	0x00000008
#define SCTP_PCB_FLAGS_UNBOUND		0x00000010
#define SCTP_PCB_FLAGS_CLOSE_IP         0x00040000
#define SCTP_PCB_FLAGS_WAS_CONNECTED    0x00080000
#define SCTP_PCB_FLAGS_WAS_ABORTED      0x00100000
/* TCP model support */

#define SCTP_PCB_FLAGS_CONNECTED	0x00200000
#define SCTP_PCB_FLAGS_IN_TCPPOOL	0x00400000
#define SCTP_PCB_FLAGS_DONT_WAKE	0x00800000
#define SCTP_PCB_FLAGS_WAKEOUTPUT	0x01000000
#define SCTP_PCB_FLAGS_WAKEINPUT	0x02000000
#define SCTP_PCB_FLAGS_BOUND_V6		0x04000000
#define SCTP_PCB_FLAGS_BLOCKING_IO	0x08000000
#define SCTP_PCB_FLAGS_SOCKET_GONE	0x10000000
#define SCTP_PCB_FLAGS_SOCKET_ALLGONE	0x20000000
#define SCTP_PCB_FLAGS_SOCKET_CANT_READ	0x40000000
#if defined(__Userspace__)
#define SCTP_PCB_FLAGS_BOUND_CONN       0x80000000

/* flags to copy to new PCB */
#define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
					 SCTP_PCB_FLAGS_WAKEINPUT|\
					 SCTP_PCB_FLAGS_BOUND_V6|\
					 SCTP_PCB_FLAGS_BOUND_CONN)
#else

/* flags to copy to new PCB */
#define SCTP_PCB_COPY_FLAGS		(SCTP_PCB_FLAGS_BOUNDALL|\
					 SCTP_PCB_FLAGS_WAKEINPUT|\
					 SCTP_PCB_FLAGS_BOUND_V6)
#endif

/*
 * PCB Features (in sctp_features bitmask)
 */
#define SCTP_PCB_FLAGS_DO_NOT_PMTUD      0x0000000000000001
#define SCTP_PCB_FLAGS_EXT_RCVINFO       0x0000000000000002 /* deprecated */
#define SCTP_PCB_FLAGS_DONOT_HEARTBEAT   0x0000000000000004
#define SCTP_PCB_FLAGS_FRAG_INTERLEAVE   0x0000000000000008
#define SCTP_PCB_FLAGS_INTERLEAVE_STRMS  0x0000000000000010
#define SCTP_PCB_FLAGS_DO_ASCONF         0x0000000000000020
#define SCTP_PCB_FLAGS_AUTO_ASCONF       0x0000000000000040
#define SCTP_PCB_FLAGS_ZERO_COPY_ACTIVE  0x0000000000000080
/* socket options */
#define SCTP_PCB_FLAGS_NODELAY           0x0000000000000100
#define SCTP_PCB_FLAGS_AUTOCLOSE         0x0000000000000200
#define SCTP_PCB_FLAGS_RECVDATAIOEVNT    0x0000000000000400 /* deprecated */
#define SCTP_PCB_FLAGS_RECVASSOCEVNT     0x0000000000000800
#define SCTP_PCB_FLAGS_RECVPADDREVNT     0x0000000000001000
#define SCTP_PCB_FLAGS_RECVPEERERR       0x0000000000002000
#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT  0x0000000000004000 /* deprecated */
#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT  0x0000000000008000
#define SCTP_PCB_FLAGS_ADAPTATIONEVNT    0x0000000000010000
#define SCTP_PCB_FLAGS_PDAPIEVNT         0x0000000000020000
#define SCTP_PCB_FLAGS_AUTHEVNT          0x0000000000040000
#define SCTP_PCB_FLAGS_STREAM_RESETEVNT  0x0000000000080000
#define SCTP_PCB_FLAGS_NO_FRAGMENT       0x0000000000100000
#define SCTP_PCB_FLAGS_EXPLICIT_EOR      0x0000000000400000
#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4   0x0000000000800000
#define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS  0x0000000001000000
#define SCTP_PCB_FLAGS_PORTREUSE         0x0000000002000000
#define SCTP_PCB_FLAGS_DRYEVNT           0x0000000004000000
#define SCTP_PCB_FLAGS_RECVRCVINFO       0x0000000008000000
#define SCTP_PCB_FLAGS_RECVNXTINFO       0x0000000010000000
#define SCTP_PCB_FLAGS_ASSOC_RESETEVNT   0x0000000020000000
#define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000
#define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000

/*-
 * mobility_features parameters (by micchie).Note
 * these features are applied against the
 * sctp_mobility_features flags.. not the sctp_features
 * flags.
 */
#define SCTP_MOBILITY_BASE               0x00000001
#define SCTP_MOBILITY_FASTHANDOFF        0x00000002
#define SCTP_MOBILITY_PRIM_DELETED       0x00000004


#define SCTP_SMALLEST_PMTU 512	 /* smallest pmtu allowed when disabling PMTU discovery */

#if defined(__Userspace_os_Windows)
#pragma pack()
#endif
#undef SCTP_PACKED

#include <netinet/sctp_uio.h>

/* This dictates the size of the packet
 * collection buffer. This only applies
 * if SCTP_PACKET_LOGGING is enabled in
 * your config.
 */
#define SCTP_PACKET_LOG_SIZE 65536

/* Maximum delays and such a user can set for options that
 * take ms.
 */
#define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */
#define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */
#define SCTP_MAX_COOKIE_LIFE  3600000 /* 1 hour in ms */


/* Types of logging/KTR tracing  that can be enabled via the
 * sysctl net.inet.sctp.sctp_logging. You must also enable
 * SUBSYS tracing.
 * Note that you must have the SCTP option in the kernel
 * to enable these as well.
 */
#define SCTP_BLK_LOGGING_ENABLE				0x00000001
#define SCTP_CWND_MONITOR_ENABLE			0x00000002
#define SCTP_CWND_LOGGING_ENABLE			0x00000004
#define SCTP_FLIGHT_LOGGING_ENABLE			0x00000020
#define SCTP_FR_LOGGING_ENABLE				0x00000040
#define SCTP_LOCK_LOGGING_ENABLE			0x00000080
#define SCTP_MAP_LOGGING_ENABLE				0x00000100
#define SCTP_MBCNT_LOGGING_ENABLE			0x00000200
#define SCTP_MBUF_LOGGING_ENABLE			0x00000400
#define SCTP_NAGLE_LOGGING_ENABLE			0x00000800
#define SCTP_RECV_RWND_LOGGING_ENABLE			0x00001000
#define SCTP_RTTVAR_LOGGING_ENABLE			0x00002000
#define SCTP_SACK_LOGGING_ENABLE			0x00004000
#define SCTP_SACK_RWND_LOGGING_ENABLE			0x00008000
#define SCTP_SB_LOGGING_ENABLE				0x00010000
#define SCTP_STR_LOGGING_ENABLE				0x00020000
#define SCTP_WAKE_LOGGING_ENABLE			0x00040000
#define SCTP_LOG_MAXBURST_ENABLE			0x00080000
#define SCTP_LOG_RWND_ENABLE    			0x00100000
#define SCTP_LOG_SACK_ARRIVALS_ENABLE			0x00200000
#define SCTP_LTRACE_CHUNK_ENABLE			0x00400000
#define SCTP_LTRACE_ERROR_ENABLE			0x00800000
#define SCTP_LAST_PACKET_TRACING			0x01000000
#define SCTP_THRESHOLD_LOGGING				0x02000000
#define SCTP_LOG_AT_SEND_2_SCTP				0x04000000
#define SCTP_LOG_AT_SEND_2_OUTQ				0x08000000
#define SCTP_LOG_TRY_ADVANCE				0x10000000

#endif				/* !_NETINET_SCTP_H_ */