2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #ifndef _NETINET_SCTP_CONSTANTS_H_
37 #define _NETINET_SCTP_CONSTANTS_H_
40 /* IANA assigned port number for SCTP over UDP encapsulation */
41 #define SCTP_OVER_UDP_TUNNELING_PORT 9899
43 /* Number of packets to get before sack sent by default */
44 #define SCTP_DEFAULT_SACK_FREQ 2
46 /* Address limit - This variable is calculated
47 * based on an 65535 byte max ip packet. We take out 100 bytes
48 * for the cookie, 40 bytes for a v6 header and 32
49 * bytes for the init structure. A second init structure
50 * for the init-ack and then finally a third one for the
51 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes.
52 * This leaves 65299 bytes for addresses. We throw out the 299 bytes.
53 * Now whatever we send in the INIT() we need to allow to get back in the
54 * INIT-ACK plus all the values from INIT and INIT-ACK
55 * listed in the cookie. Plus we need some overhead for
56 * maybe copied parameters in the COOKIE. If we
57 * allow 1080 addresses, and each side has 1080 V6 addresses
58 * that will be 21600 bytes. In the INIT-ACK we will
59 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves
60 * about 500 bytes slack for misc things in the cookie.
62 #define SCTP_ADDRESS_LIMIT 1080
64 /* We need at least 2k of space for us, inits
65 * larger than that lets abort.
67 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048)
69 /* Largest length of a chunk */
70 #define SCTP_MAX_CHUNK_LENGTH 0xffff
71 /* Number of addresses where we just skip the counting */
72 #define SCTP_COUNT_LIMIT 40
74 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000)
75 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000)
77 /* Number of ticks to delay before running
78 * iterator on an address change.
80 #define SCTP_ADDRESS_TICK_DELAY 2
82 #define SCTP_VERSION_STRING "KAME-BSD 1.1"
83 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */
84 #define SCTP_AUDIT_SIZE 256
87 #define SCTP_KTRHEAD_NAME "sctp_iterator"
88 #define SCTP_KTHREAD_PAGES 0
90 #define SCTP_MCORE_NAME "sctp_core_worker"
93 /* If you support Multi-VRF how big to
94 * make the initial array of VRF's to.
96 #define SCTP_DEFAULT_VRF_SIZE 4
98 /* constants for rto calc */
99 #define sctp_align_safe_nocopy 0
100 #define sctp_align_unsafe_makecopy 1
102 /* JRS - Values defined for the HTCP algorithm */
103 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */
104 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */
105 #define BETA_MAX 102 /* 0.8 with shift << 7 */
107 /* Places that CWND log can happen from */
108 #define SCTP_CWND_LOG_FROM_FR 1
109 #define SCTP_CWND_LOG_FROM_RTX 2
110 #define SCTP_CWND_LOG_FROM_BRST 3
111 #define SCTP_CWND_LOG_FROM_SS 4
112 #define SCTP_CWND_LOG_FROM_CA 5
113 #define SCTP_CWND_LOG_FROM_SAT 6
114 #define SCTP_BLOCK_LOG_INTO_BLK 7
115 #define SCTP_BLOCK_LOG_OUTOF_BLK 8
116 #define SCTP_BLOCK_LOG_CHECK 9
117 #define SCTP_STR_LOG_FROM_INTO_STRD 10
118 #define SCTP_STR_LOG_FROM_IMMED_DEL 11
119 #define SCTP_STR_LOG_FROM_INSERT_HD 12
120 #define SCTP_STR_LOG_FROM_INSERT_MD 13
121 #define SCTP_STR_LOG_FROM_INSERT_TL 14
122 #define SCTP_STR_LOG_FROM_MARK_TSN 15
123 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16
124 #define SCTP_FR_LOG_BIGGEST_TSNS 17
125 #define SCTP_FR_LOG_STRIKE_TEST 18
126 #define SCTP_FR_LOG_STRIKE_CHUNK 19
127 #define SCTP_FR_T3_TIMEOUT 20
128 #define SCTP_MAP_PREPARE_SLIDE 21
129 #define SCTP_MAP_SLIDE_FROM 22
130 #define SCTP_MAP_SLIDE_RESULT 23
131 #define SCTP_MAP_SLIDE_CLEARED 24
132 #define SCTP_MAP_SLIDE_NONE 25
133 #define SCTP_FR_T3_MARK_TIME 26
134 #define SCTP_FR_T3_MARKED 27
135 #define SCTP_FR_T3_STOPPED 28
136 #define SCTP_FR_MARKED 30
137 #define SCTP_CWND_LOG_NOADV_SS 31
138 #define SCTP_CWND_LOG_NOADV_CA 32
139 #define SCTP_MAX_BURST_APPLIED 33
140 #define SCTP_MAX_IFP_APPLIED 34
141 #define SCTP_MAX_BURST_ERROR_STOP 35
142 #define SCTP_INCREASE_PEER_RWND 36
143 #define SCTP_DECREASE_PEER_RWND 37
144 #define SCTP_SET_PEER_RWND_VIA_SACK 38
145 #define SCTP_LOG_MBCNT_INCREASE 39
146 #define SCTP_LOG_MBCNT_DECREASE 40
147 #define SCTP_LOG_MBCNT_CHKSET 41
148 #define SCTP_LOG_NEW_SACK 42
149 #define SCTP_LOG_TSN_ACKED 43
150 #define SCTP_LOG_TSN_REVOKED 44
151 #define SCTP_LOG_LOCK_TCB 45
152 #define SCTP_LOG_LOCK_INP 46
153 #define SCTP_LOG_LOCK_SOCK 47
154 #define SCTP_LOG_LOCK_SOCKBUF_R 48
155 #define SCTP_LOG_LOCK_SOCKBUF_S 49
156 #define SCTP_LOG_LOCK_CREATE 50
157 #define SCTP_LOG_INITIAL_RTT 51
158 #define SCTP_LOG_RTTVAR 52
159 #define SCTP_LOG_SBALLOC 53
160 #define SCTP_LOG_SBFREE 54
161 #define SCTP_LOG_SBRESULT 55
162 #define SCTP_FR_DUPED 56
163 #define SCTP_FR_MARKED_EARLY 57
164 #define SCTP_FR_CWND_REPORT 58
165 #define SCTP_FR_CWND_REPORT_START 59
166 #define SCTP_FR_CWND_REPORT_STOP 60
167 #define SCTP_CWND_LOG_FROM_SEND 61
168 #define SCTP_CWND_INITIALIZATION 62
169 #define SCTP_CWND_LOG_FROM_T3 63
170 #define SCTP_CWND_LOG_FROM_SACK 64
171 #define SCTP_CWND_LOG_NO_CUMACK 65
172 #define SCTP_CWND_LOG_FROM_RESEND 66
173 #define SCTP_FR_LOG_CHECK_STRIKE 67
174 #define SCTP_SEND_NOW_COMPLETES 68
175 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69
176 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70
177 #define SCTP_LOG_FREE_SENT 71
178 #define SCTP_NAGLE_APPLIED 72
179 #define SCTP_NAGLE_SKIPPED 73
180 #define SCTP_WAKESND_FROM_SACK 74
181 #define SCTP_WAKESND_FROM_FWDTSN 75
182 #define SCTP_NOWAKE_FROM_SACK 76
183 #define SCTP_CWNDLOG_PRESEND 77
184 #define SCTP_CWNDLOG_ENDSEND 78
185 #define SCTP_AT_END_OF_SACK 79
186 #define SCTP_REASON_FOR_SC 80
187 #define SCTP_BLOCK_LOG_INTO_BLKA 81
188 #define SCTP_ENTER_USER_RECV 82
189 #define SCTP_USER_RECV_SACKS 83
190 #define SCTP_SORECV_BLOCKSA 84
191 #define SCTP_SORECV_BLOCKSB 85
192 #define SCTP_SORECV_DONE 86
193 #define SCTP_SACK_RWND_UPDATE 87
194 #define SCTP_SORECV_ENTER 88
195 #define SCTP_SORECV_ENTERPL 89
196 #define SCTP_MBUF_INPUT 90
197 #define SCTP_MBUF_IALLOC 91
198 #define SCTP_MBUF_IFREE 92
199 #define SCTP_MBUF_ICOPY 93
200 #define SCTP_MBUF_SPLIT 94
201 #define SCTP_SORCV_FREECTL 95
202 #define SCTP_SORCV_DOESCPY 96
203 #define SCTP_SORCV_DOESLCK 97
204 #define SCTP_SORCV_DOESADJ 98
205 #define SCTP_SORCV_BOTWHILE 99
206 #define SCTP_SORCV_PASSBF 100
207 #define SCTP_SORCV_ADJD 101
208 #define SCTP_UNKNOWN_MAX 102
209 #define SCTP_RANDY_STUFF 103
210 #define SCTP_RANDY_STUFF1 104
211 #define SCTP_STRMOUT_LOG_ASSIGN 105
212 #define SCTP_STRMOUT_LOG_SEND 106
213 #define SCTP_FLIGHT_LOG_DOWN_CA 107
214 #define SCTP_FLIGHT_LOG_UP 108
215 #define SCTP_FLIGHT_LOG_DOWN_GAP 109
216 #define SCTP_FLIGHT_LOG_DOWN_RSND 110
217 #define SCTP_FLIGHT_LOG_UP_RSND 111
218 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112
219 #define SCTP_FLIGHT_LOG_DOWN_WP 113
220 #define SCTP_FLIGHT_LOG_UP_REVOKE 114
221 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115
222 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116
223 #define SCTP_SACK_LOG_NORMAL 117
224 #define SCTP_SACK_LOG_EXPRESS 118
225 #define SCTP_MAP_TSN_ENTERS 119
226 #define SCTP_THRESHOLD_CLEAR 120
227 #define SCTP_THRESHOLD_INCR 121
228 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122
229 #define SCTP_FWD_TSN_CHECK 123
230 #define SCTP_LOG_MAX_TYPES 124
232 * To turn on various logging, you must first enable 'options KTR' and
233 * you might want to bump the entires 'options KTR_ENTRIES=80000'.
234 * To get something to log you define one of the logging defines.
237 * This gets the compile in place, but you still need to turn the
238 * logging flag on too in the sysctl (see in sctp.h).
241 #define SCTP_LOG_EVENT_UNKNOWN 0
242 #define SCTP_LOG_EVENT_CWND 1
243 #define SCTP_LOG_EVENT_BLOCK 2
244 #define SCTP_LOG_EVENT_STRM 3
245 #define SCTP_LOG_EVENT_FR 4
246 #define SCTP_LOG_EVENT_MAP 5
247 #define SCTP_LOG_EVENT_MAXBURST 6
248 #define SCTP_LOG_EVENT_RWND 7
249 #define SCTP_LOG_EVENT_MBCNT 8
250 #define SCTP_LOG_EVENT_SACK 9
251 #define SCTP_LOG_LOCK_EVENT 10
252 #define SCTP_LOG_EVENT_RTT 11
253 #define SCTP_LOG_EVENT_SB 12
254 #define SCTP_LOG_EVENT_NAGLE 13
255 #define SCTP_LOG_EVENT_WAKE 14
256 #define SCTP_LOG_MISC_EVENT 15
257 #define SCTP_LOG_EVENT_CLOSE 16
258 #define SCTP_LOG_EVENT_MBUF 17
259 #define SCTP_LOG_CHUNK_PROC 18
260 #define SCTP_LOG_ERROR_RET 19
262 #define SCTP_LOG_MAX_EVENT 20
264 #define SCTP_LOCK_UNKNOWN 2
267 /* number of associations by default for zone allocation */
268 #define SCTP_MAX_NUM_OF_ASOC 40000
269 /* how many addresses per assoc remote and local */
270 #define SCTP_SCALE_FOR_ADDR 2
272 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */
273 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0
276 * Theshold for rwnd updates, we have to read (sb_hiwat >>
277 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a
278 * window update sack. When we look, we compare the last rwnd we sent vs the
279 * current rwnd. It too must be greater than this value. Using 3 divdes the
280 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need
281 * to read 8k. This seems about right.. I hope :-D.. we do set a
282 * min of a MTU on it so if the rwnd is real small we will insist
283 * on a full MTU of 1500 bytes.
285 #define SCTP_RWND_HIWAT_SHIFT 3
287 /* How much of the rwnd must the
288 * message be taking up to start partial delivery.
289 * We calculate this by shifing the hi_water (recv_win)
290 * left the following .. set to 1, when a message holds
291 * 1/2 the rwnd. If we set it to 2 when a message holds
292 * 1/4 the rwnd...etc..
295 #define SCTP_PARTIAL_DELIVERY_SHIFT 1
298 * default HMAC for cookies, etc... use one of the AUTH HMAC id's
299 * SCTP_HMAC is the HMAC_ID to use
300 * SCTP_SIGNATURE_SIZE is the digest length
302 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1
303 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1
304 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE
307 * the SCTP protocol signature this includes the version number encoded in
308 * the last 4 bits of the signature.
310 #define PROTO_SIGNATURE_A 0x30000000
311 #define SCTP_VERSION_NUMBER 0x3
313 #define MAX_TSN 0xffffffff
315 /* how many executions every N tick's */
316 #define SCTP_ITERATOR_MAX_AT_ONCE 20
318 /* number of clock ticks between iterator executions */
319 #define SCTP_ITERATOR_TICKS 1
322 * option: If you comment out the following you will receive the old behavior
323 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR
324 * happens right away with-out waiting for the flightsize to drop below the
325 * cwnd value (which is reduced by the FR to 1/2 the inflight packets).
327 #define SCTP_IGNORE_CWND_ON_FR 1
330 * Adds implementors guide behavior to only use newest highest update in SACK
331 * gap ack's to figure out if you need to stroke a chunk for FR.
333 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1
335 /* default max I can burst out after a fast retransmit, 0 disables it */
336 #define SCTP_DEF_MAX_BURST 4
337 #define SCTP_DEF_HBMAX_BURST 4
338 #define SCTP_DEF_FRMAX_BURST 4
340 /* RTO calculation flag to say if it
341 * is safe to determine local lan or not.
343 #define SCTP_RTT_FROM_NON_DATA 0
344 #define SCTP_RTT_FROM_DATA 1
347 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */
348 #define SCTP_FIRST_MBUF_RESV 68
349 /* Packet transmit states in the sent field */
350 #define SCTP_DATAGRAM_UNSENT 0
351 #define SCTP_DATAGRAM_SENT 1
352 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may
354 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may
356 #define SCTP_DATAGRAM_RESEND 4
357 #define SCTP_DATAGRAM_ACKED 10010
358 #define SCTP_DATAGRAM_MARKED 20010
359 #define SCTP_FORWARD_TSN_SKIP 30010
360 #define SCTP_DATAGRAM_NR_ACKED 40010
362 /* chunk output send from locations */
363 #define SCTP_OUTPUT_FROM_USR_SEND 0
364 #define SCTP_OUTPUT_FROM_T3 1
365 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2
366 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3
367 #define SCTP_OUTPUT_FROM_SACK_TMR 4
368 #define SCTP_OUTPUT_FROM_SHUT_TMR 5
369 #define SCTP_OUTPUT_FROM_HB_TMR 6
370 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7
371 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8
372 #define SCTP_OUTPUT_FROM_STRRST_TMR 9
373 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10
374 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11
375 #define SCTP_OUTPUT_FROM_STRRST_REQ 12
376 #define SCTP_OUTPUT_FROM_USR_RCVD 13
377 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14
378 #define SCTP_OUTPUT_FROM_DRAIN 15
379 #define SCTP_OUTPUT_FROM_CLOSING 16
380 #define SCTP_OUTPUT_FROM_SOCKOPT 17
382 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */
384 /* align to 32-bit sizes */
385 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2)
387 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA)
388 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA)
391 /* SCTP parameter types */
392 /*************0x0000 series*************/
393 #define SCTP_HEARTBEAT_INFO 0x0001
394 #define SCTP_IPV4_ADDRESS 0x0005
395 #define SCTP_IPV6_ADDRESS 0x0006
396 #define SCTP_STATE_COOKIE 0x0007
397 #define SCTP_UNRECOG_PARAM 0x0008
398 #define SCTP_COOKIE_PRESERVE 0x0009
399 #define SCTP_HOSTNAME_ADDRESS 0x000b
400 #define SCTP_SUPPORTED_ADDRTYPE 0x000c
402 /* draft-ietf-stewart-tsvwg-strreset-xxx */
403 #define SCTP_STR_RESET_OUT_REQUEST 0x000d
404 #define SCTP_STR_RESET_IN_REQUEST 0x000e
405 #define SCTP_STR_RESET_TSN_REQUEST 0x000f
406 #define SCTP_STR_RESET_RESPONSE 0x0010
407 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011
408 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012
410 #define SCTP_MAX_RESET_PARAMS 2
411 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000
413 /*************0x4000 series*************/
415 /*************0x8000 series*************/
416 #define SCTP_ECN_CAPABLE 0x8000
418 /* draft-ietf-tsvwg-auth-xxx */
419 #define SCTP_RANDOM 0x8002
420 #define SCTP_CHUNK_LIST 0x8003
421 #define SCTP_HMAC_LIST 0x8004
423 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte
424 * | Byte Byte | Byte ...
426 * Where each byte is a chunk type extension supported. For example, to support
427 * all chunks one would have (in hex):
429 * 80 01 00 09 C0 C1 80 81 82 00 00 00
431 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81
432 * = Packet Drop 82 = Stream Reset 83 = Authentication
434 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008
436 /*************0xC000 series*************/
437 #define SCTP_PRSCTP_SUPPORTED 0xc000
438 /* draft-ietf-tsvwg-addip-sctp */
439 #define SCTP_ADD_IP_ADDRESS 0xc001
440 #define SCTP_DEL_IP_ADDRESS 0xc002
441 #define SCTP_ERROR_CAUSE_IND 0xc003
442 #define SCTP_SET_PRIM_ADDR 0xc004
443 #define SCTP_SUCCESS_REPORT 0xc005
444 #define SCTP_ULP_ADAPTATION 0xc006
445 /* behave-nat-draft */
446 #define SCTP_HAS_NAT_SUPPORT 0xc007
447 #define SCTP_NAT_VTAGS 0xc008
449 /* bits for TOS field */
450 #define SCTP_ECT0_BIT 0x02
451 #define SCTP_ECT1_BIT 0x01
452 #define SCTP_CE_BITS 0x03
454 /* below turns off above */
455 #define SCTP_FLEXIBLE_ADDRESS 0x20
456 #define SCTP_NO_HEARTBEAT 0x40
458 /* mask to get sticky */
459 #define SCTP_STICKY_OPTIONS_MASK 0x0c
463 * SCTP states for internal state machine
465 #define SCTP_STATE_EMPTY 0x0000
466 #define SCTP_STATE_INUSE 0x0001
467 #define SCTP_STATE_COOKIE_WAIT 0x0002
468 #define SCTP_STATE_COOKIE_ECHOED 0x0004
469 #define SCTP_STATE_OPEN 0x0008
470 #define SCTP_STATE_SHUTDOWN_SENT 0x0010
471 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020
472 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040
473 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080
474 #define SCTP_STATE_CLOSED_SOCKET 0x0100
475 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200
476 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400
477 #define SCTP_STATE_WAS_ABORTED 0x0800
478 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000
479 #define SCTP_STATE_MASK 0x007f
481 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK)
482 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate)
483 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate)
484 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate)
486 /* SCTP reachability state for each address */
487 #define SCTP_ADDR_REACHABLE 0x001
488 #define SCTP_ADDR_NO_PMTUD 0x002
489 #define SCTP_ADDR_NOHB 0x004
490 #define SCTP_ADDR_BEING_DELETED 0x008
491 #define SCTP_ADDR_NOT_IN_ASSOC 0x010
492 #define SCTP_ADDR_OUT_OF_SCOPE 0x080
493 #define SCTP_ADDR_UNCONFIRMED 0x200
494 #define SCTP_ADDR_REQ_PRIMARY 0x400
495 /* JRS 5/13/07 - Added potentially failed state for CMT PF */
496 #define SCTP_ADDR_PF 0x800
498 /* bound address types (e.g. valid address types to allow) */
499 #define SCTP_BOUND_V6 0x01
500 #define SCTP_BOUND_V4 0x02
503 * what is the default number of mbufs in a chain I allow before switching to
506 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5
508 /* How long a cookie lives in milli-seconds */
509 #define SCTP_DEFAULT_COOKIE_LIFE 60000
511 /* Maximum the mapping array will grow to (TSN mapping array) */
512 #define SCTP_MAPPING_ARRAY 512
514 /* size of the inital malloc on the mapping array */
515 #define SCTP_INITIAL_MAPPING_ARRAY 16
516 /* how much we grow the mapping array each call */
517 #define SCTP_MAPPING_ARRAY_INCR 32
520 * Here we define the timer types used by the implementation as arguments in
521 * the set/get timer type calls.
523 #define SCTP_TIMER_INIT 0
524 #define SCTP_TIMER_RECV 1
525 #define SCTP_TIMER_SEND 2
526 #define SCTP_TIMER_HEARTBEAT 3
527 #define SCTP_TIMER_PMTU 4
528 #define SCTP_TIMER_MAXSHUTDOWN 5
529 #define SCTP_TIMER_SIGNATURE 6
531 * number of timer types in the base SCTP structure used in the set/get and
532 * has the base default.
534 #define SCTP_NUM_TMRS 7
537 #define SCTP_TIMER_TYPE_NONE 0
538 #define SCTP_TIMER_TYPE_SEND 1
539 #define SCTP_TIMER_TYPE_INIT 2
540 #define SCTP_TIMER_TYPE_RECV 3
541 #define SCTP_TIMER_TYPE_SHUTDOWN 4
542 #define SCTP_TIMER_TYPE_HEARTBEAT 5
543 #define SCTP_TIMER_TYPE_COOKIE 6
544 #define SCTP_TIMER_TYPE_NEWCOOKIE 7
545 #define SCTP_TIMER_TYPE_PATHMTURAISE 8
546 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9
547 #define SCTP_TIMER_TYPE_ASCONF 10
548 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11
549 #define SCTP_TIMER_TYPE_AUTOCLOSE 12
550 #define SCTP_TIMER_TYPE_EVENTWAKE 13
551 #define SCTP_TIMER_TYPE_STRRESET 14
552 #define SCTP_TIMER_TYPE_INPKILL 15
553 #define SCTP_TIMER_TYPE_ASOCKILL 16
554 #define SCTP_TIMER_TYPE_ADDR_WQ 17
555 #define SCTP_TIMER_TYPE_ZERO_COPY 18
556 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 19
557 #define SCTP_TIMER_TYPE_PRIM_DELETED 20
558 /* add new timers here - and increment LAST */
559 #define SCTP_TIMER_TYPE_LAST 21
561 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \
562 ((t) < SCTP_TIMER_TYPE_LAST))
566 /* max number of TSN's dup'd that I will hold */
567 #define SCTP_MAX_DUP_TSNS 20
570 * Here we define the types used when setting the retry amounts.
572 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */
573 #define SCTP_RETRY_DROPPED_THRESH 4
576 * Maxmium number of chunks a single association can have on it. Note that
577 * this is a squishy number since the count can run over this if the user
578 * sends a large message down .. the fragmented chunks don't count until
579 * AFTER the message is on queue.. it would be the next send that blocks
580 * things. This number will get tuned up at boot in the sctp_init and use the
581 * number of clusters as a base. This way high bandwidth environments will
582 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks
584 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512
587 /* The conversion from time to ticks and vice versa is done by rounding
588 * upwards. This way we can test in the code the time to be positive and
589 * know that this corresponds to a positive number of ticks.
591 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000))
592 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz))
594 #define SEC_TO_TICKS(x) ((x) * hz)
595 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz)
598 * Basically the minimum amount of time before I do a early FR. Making this
599 * value to low will cause duplicate retransmissions.
601 #define SCTP_MINFR_MSEC_TIMER 250
602 /* The floor this value is allowed to fall to when starting a timer. */
603 #define SCTP_MINFR_MSEC_FLOOR 20
605 /* init timer def = 1 sec */
606 #define SCTP_INIT_SEC 1
608 /* send timer def = 1 seconds */
609 #define SCTP_SEND_SEC 1
611 /* recv timer def = 200ms */
612 #define SCTP_RECV_MSEC 200
614 /* 30 seconds + RTO (in ms) */
615 #define SCTP_HB_DEFAULT_MSEC 30000
618 * This is how long a secret lives, NOT how long a cookie lives how many
619 * ticks the current secret will live.
621 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600
623 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */
624 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */
625 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */
628 #define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */
629 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */
631 #define SCTP_DEF_MAX_INIT 8
632 #define SCTP_DEF_MAX_SEND 10
633 #define SCTP_DEF_MAX_PATH_RTX 5
634 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX
636 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */
639 /* How many streams I request initally by default */
640 #define SCTP_OSTREAM_INITIAL 10
641 #define SCTP_ISTREAM_INITIAL 2048
644 * How many smallest_mtu's need to increase before a window update sack is
645 * sent (should be a power of 2).
647 /* Send window update (incr * this > hiwat). Should be a power of 2 */
648 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */
650 #define SCTP_ADDRMAX 16
652 /* SCTP DEBUG Switch parameters */
653 #define SCTP_DEBUG_TIMER1 0x00000001
654 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */
655 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */
656 #define SCTP_DEBUG_TIMER4 0x00000008
657 #define SCTP_DEBUG_OUTPUT1 0x00000010
658 #define SCTP_DEBUG_OUTPUT2 0x00000020
659 #define SCTP_DEBUG_OUTPUT3 0x00000040
660 #define SCTP_DEBUG_OUTPUT4 0x00000080
661 #define SCTP_DEBUG_UTIL1 0x00000100
662 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */
663 #define SCTP_DEBUG_AUTH1 0x00000400
664 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */
665 #define SCTP_DEBUG_INPUT1 0x00001000
666 #define SCTP_DEBUG_INPUT2 0x00002000
667 #define SCTP_DEBUG_INPUT3 0x00004000
668 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */
669 #define SCTP_DEBUG_ASCONF1 0x00010000
670 #define SCTP_DEBUG_ASCONF2 0x00020000
671 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */
672 #define SCTP_DEBUG_XXX 0x00080000 /* unused */
673 #define SCTP_DEBUG_PCB1 0x00100000
674 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */
675 #define SCTP_DEBUG_PCB3 0x00400000
676 #define SCTP_DEBUG_PCB4 0x00800000
677 #define SCTP_DEBUG_INDATA1 0x01000000
678 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */
679 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */
680 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */
681 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */
682 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */
683 #define SCTP_DEBUG_PEEL1 0x40000000
684 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */
685 #define SCTP_DEBUG_ALL 0x7ff3ffff
686 #define SCTP_DEBUG_NOISY 0x00040000
688 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */
689 #define SCTP_SWS_SENDER_DEF 1420
692 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1
693 * would be hiwat/2 etc.
695 /* What receiver needs to see in sockbuf or we tell peer its 1 */
696 #define SCTP_SWS_RECEIVER_DEF 3000
698 #define SCTP_INITIAL_CWND 4380
700 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */
701 /* amount peer is obligated to have in rwnd or I will abort */
702 #define SCTP_MIN_RWND 1500
704 #define SCTP_DEFAULT_MAXSEGMENT 65535
706 #define SCTP_CHUNK_BUFFER_SIZE 512
707 #define SCTP_PARAM_BUFFER_SIZE 512
709 /* small chunk store for looking at chunk_list in auth */
710 #define SCTP_SMALL_CHUNK_STORE 260
712 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */
714 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */
715 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */
719 * SCTP upper layer notifications
721 #define SCTP_NOTIFY_ASSOC_UP 1
722 #define SCTP_NOTIFY_ASSOC_DOWN 2
723 #define SCTP_NOTIFY_INTERFACE_DOWN 3
724 #define SCTP_NOTIFY_INTERFACE_UP 4
725 #define SCTP_NOTIFY_SENT_DG_FAIL 5
726 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6
727 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7
728 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8
729 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9
730 #define SCTP_NOTIFY_ASSOC_RESTART 10
731 #define SCTP_NOTIFY_PEER_SHUTDOWN 11
732 #define SCTP_NOTIFY_ASCONF_ADD_IP 12
733 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13
734 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14
735 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15
736 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16
737 #define SCTP_NOTIFY_STR_RESET_RECV 17
738 #define SCTP_NOTIFY_STR_RESET_SEND 18
739 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19
740 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20
741 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21
742 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22
743 #define SCTP_NOTIFY_AUTH_NEW_KEY 23
744 #define SCTP_NOTIFY_AUTH_FREE_KEY 24
745 #define SCTP_NOTIFY_NO_PEER_AUTH 25
746 #define SCTP_NOTIFY_SENDER_DRY 26
747 #define SCTP_NOTIFY_REMOTE_ERROR 27
749 /* This is the value for messages that are NOT completely
750 * copied down where we will start to split the message.
751 * So, with our default, we split only if the piece we
752 * want to take will fill up a full MTU (assuming
755 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904
757 /* Maximum length of diagnostic information in error causes */
758 #define SCTP_DIAG_INFO_LEN 64
760 /* ABORT CODES and other tell-tale location
761 * codes are generated by adding the below
762 * to the instance id.
766 #define SCTP_FROM_SCTP_INPUT 0x10000000
767 #define SCTP_FROM_SCTP_PCB 0x20000000
768 #define SCTP_FROM_SCTP_INDATA 0x30000000
769 #define SCTP_FROM_SCTP_TIMER 0x40000000
770 #define SCTP_FROM_SCTP_USRREQ 0x50000000
771 #define SCTP_FROM_SCTPUTIL 0x60000000
772 #define SCTP_FROM_SCTP6_USRREQ 0x70000000
773 #define SCTP_FROM_SCTP_ASCONF 0x80000000
774 #define SCTP_FROM_SCTP_OUTPUT 0x90000000
775 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000
776 #define SCTP_FROM_SCTP_PANDA 0xb0000000
777 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000
778 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xd0000000
781 #define SCTP_LOC_1 0x00000001
782 #define SCTP_LOC_2 0x00000002
783 #define SCTP_LOC_3 0x00000003
784 #define SCTP_LOC_4 0x00000004
785 #define SCTP_LOC_5 0x00000005
786 #define SCTP_LOC_6 0x00000006
787 #define SCTP_LOC_7 0x00000007
788 #define SCTP_LOC_8 0x00000008
789 #define SCTP_LOC_9 0x00000009
790 #define SCTP_LOC_10 0x0000000a
791 #define SCTP_LOC_11 0x0000000b
792 #define SCTP_LOC_12 0x0000000c
793 #define SCTP_LOC_13 0x0000000d
794 #define SCTP_LOC_14 0x0000000e
795 #define SCTP_LOC_15 0x0000000f
796 #define SCTP_LOC_16 0x00000010
797 #define SCTP_LOC_17 0x00000011
798 #define SCTP_LOC_18 0x00000012
799 #define SCTP_LOC_19 0x00000013
800 #define SCTP_LOC_20 0x00000014
801 #define SCTP_LOC_21 0x00000015
802 #define SCTP_LOC_22 0x00000016
803 #define SCTP_LOC_23 0x00000017
804 #define SCTP_LOC_24 0x00000018
805 #define SCTP_LOC_25 0x00000019
806 #define SCTP_LOC_26 0x0000001a
807 #define SCTP_LOC_27 0x0000001b
808 #define SCTP_LOC_28 0x0000001c
809 #define SCTP_LOC_29 0x0000001d
810 #define SCTP_LOC_30 0x0000001e
811 #define SCTP_LOC_31 0x0000001f
812 #define SCTP_LOC_32 0x00000020
813 #define SCTP_LOC_33 0x00000021
814 #define SCTP_LOC_34 0x00000022
815 #define SCTP_LOC_35 0x00000023
818 /* Free assoc codes */
819 #define SCTP_NORMAL_PROC 0
820 #define SCTP_PCBFREE_NOFORCE 1
821 #define SCTP_PCBFREE_FORCE 2
823 /* From codes for adding addresses */
824 #define SCTP_ADDR_IS_CONFIRMED 8
825 #define SCTP_ADDR_DYNAMIC_ADDED 6
826 #define SCTP_IN_COOKIE_PROC 100
827 #define SCTP_ALLOC_ASOC 1
828 #define SCTP_LOAD_ADDR_2 2
829 #define SCTP_LOAD_ADDR_3 3
830 #define SCTP_LOAD_ADDR_4 4
831 #define SCTP_LOAD_ADDR_5 5
833 #define SCTP_DONOT_SETSCOPE 0
834 #define SCTP_DO_SETSCOPE 1
837 /* This value determines the default for when
838 * we try to add more on the send queue., if
839 * there is room. This prevents us from cycling
840 * into the copy_resume routine to often if
841 * we have not got enough space to add a decent
842 * enough size message. Note that if we have enough
843 * space to complete the message copy we will always
844 * add to the message, no matter what the size. Its
845 * only when we reach the point that we have some left
846 * to add, there is only room for part of it that we
847 * will use this threshold. Its also a sysctl.
849 #define SCTP_DEFAULT_ADD_MORE 1452
851 #ifndef SCTP_PCBHASHSIZE
852 /* default number of association hash buckets in each endpoint */
853 #define SCTP_PCBHASHSIZE 256
855 #ifndef SCTP_TCBHASHSIZE
856 #define SCTP_TCBHASHSIZE 1024
859 #ifndef SCTP_CHUNKQUEUE_SCALE
860 #define SCTP_CHUNKQUEUE_SCALE 10
863 /* clock variance is 1 ms */
864 #define SCTP_CLOCK_GRANULARITY 1
865 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this
866 * detracts a small amount for ipv4 but it
867 * simplifies the ipv6 addition */
869 /* Argument magic number for sctp_inpcb_free() */
872 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0
873 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1
874 #define SCTP_CALLED_FROM_INPKILL_TIMER 2
875 /* second argument */
876 #define SCTP_FREE_SHOULD_USE_ABORT 1
877 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0
880 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */
881 #endif /* !IPPROTO_SCTP */
883 #define SCTP_MAX_DATA_BUNDLING 256
885 /* modular comparison */
886 /* See RFC 1982 for details. */
887 #define SCTP_SSN_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \
888 ((a > b) && ((uint16_t)(a - b) < (1U<<15))))
889 #define SCTP_SSN_GE(a, b) (SCTP_SSN_GT(a, b) || (a == b))
890 #define SCTP_TSN_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \
891 ((a > b) && ((uint32_t)(a - b) < (1U<<31))))
892 #define SCTP_TSN_GE(a, b) (SCTP_TSN_GT(a, b) || (a == b))
894 /* Mapping array manipulation routines */
895 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01)
896 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07))))
897 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff))
898 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \
899 if (tsn >= mapping_tsn) { \
900 gap = tsn - mapping_tsn; \
902 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \
907 #define SCTP_RETRAN_DONE -1
908 #define SCTP_RETRAN_EXIT -2
911 * This value defines the number of vtag block time wait entry's per list
912 * element. Each entry will take 2 4 byte ints (and of course the overhead
913 * of the next pointer as well). Using 15 as an example will yield * ((8 *
914 * 15) + 8) or 128 bytes of overhead for each timewait block that gets
915 * initialized. Increasing it to 31 would yeild 256 bytes per block.
917 #define SCTP_NUMBER_IN_VTAG_BLOCK 15
919 * If we use the STACK option, we have an array of this size head pointers.
920 * This array is mod'd the with the size to find which bucket and then all
921 * entries must be searched to see if the tag is in timed wait. If so we
924 #define SCTP_STACK_VTAG_HASH_SIZE 32
927 * Number of seconds of time wait for a vtag.
929 #define SCTP_TIME_WAIT 60
931 /* How many micro seconds is the cutoff from
932 * local lan type rtt's
935 * We allow 900us for the rtt.
937 #define SCTP_LOCAL_LAN_RTT 900
938 #define SCTP_LAN_UNKNOWN 0
939 #define SCTP_LAN_LOCAL 1
940 #define SCTP_LAN_INTERNET 2
942 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001
943 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002
945 /* The system retains a cache of free chunks such to
946 * cut down on calls the memory allocation system. There
947 * is a per association limit of free items and a overall
948 * system limit. If either one gets hit then the resource
949 * stops being cached.
952 #define SCTP_DEF_ASOC_RESC_LIMIT 10
953 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000
956 * defines for socket lock states.
957 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING
959 #define SCTP_SO_LOCKED 1
960 #define SCTP_SO_NOT_LOCKED 0
963 #define SCTP_HOLDS_LOCK 1
964 #define SCTP_NOT_LOCKED 0
967 * For address locks, do we hold the lock?
969 #define SCTP_ADDR_LOCKED 1
970 #define SCTP_ADDR_NOT_LOCKED 0
972 #define IN4_ISPRIVATE_ADDRESS(a) \
973 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \
974 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \
975 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \
976 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \
977 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \
978 (((uint8_t *)&(a)->s_addr)[1] == 168)))
980 #define IN4_ISLOOPBACK_ADDRESS(a) \
981 (((uint8_t *)&(a)->s_addr)[0] == 127)
983 #define IN4_ISLINKLOCAL_ADDRESS(a) \
984 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \
985 (((uint8_t *)&(a)->s_addr)[1] == 254))
989 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x))
990 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x))
993 #if defined(_KERNEL) || defined(__Userspace__)
994 #define sctp_sowwakeup(inp, so) \
996 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
997 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
1003 #define sctp_sowwakeup_locked(inp, so) \
1005 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1006 SOCKBUF_UNLOCK(&((so)->so_snd)); \
1007 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \
1009 sowwakeup_locked(so); \
1013 #define sctp_sorwakeup(inp, so) \
1015 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1016 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
1022 #define sctp_sorwakeup_locked(inp, so) \
1024 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \
1025 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \
1026 SOCKBUF_UNLOCK(&((so)->so_rcv)); \
1028 sorwakeup_locked(so); \
1032 #endif /* _KERNEL || __Userspace__ */