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
|
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2011, 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.
*/
#ifndef __sctp_process_lock_h__
#define __sctp_process_lock_h__
/*
* Need to yet define five atomic fuctions or
* their equivalant.
* - atomic_add_int(&foo, val) - add atomically the value
* - atomic_fetchadd_int(&foo, val) - does same as atomic_add_int
* but value it was is returned.
* - atomic_subtract_int(&foo, val) - can be made from atomic_add_int()
*
* - atomic_cmpset_int(&foo, value, newvalue) - Does a set of newvalue
* in foo if and only if
* foo is value. Returns 0
* on success.
*/
#ifdef SCTP_PER_SOCKET_LOCKING
/*
* per socket level locking
*/
#if defined(_WIN32)
/* Lock for INFO stuff */
#define SCTP_INP_INFO_LOCK_INIT()
#define SCTP_INP_INFO_RLOCK()
#define SCTP_INP_INFO_RUNLOCK()
#define SCTP_INP_INFO_WLOCK()
#define SCTP_INP_INFO_WUNLOCK()
#define SCTP_INP_INFO_LOCK_ASSERT()
#define SCTP_INP_INFO_RLOCK_ASSERT()
#define SCTP_INP_INFO_WLOCK_ASSERT()
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_IPI_COUNT_INIT()
#define SCTP_IPI_COUNT_DESTROY()
#else
#define SCTP_INP_INFO_LOCK_INIT()
#define SCTP_INP_INFO_RLOCK()
#define SCTP_INP_INFO_RUNLOCK()
#define SCTP_INP_INFO_WLOCK()
#define SCTP_INP_INFO_WUNLOCK()
#define SCTP_INP_INFO_LOCK_ASSERT()
#define SCTP_INP_INFO_RLOCK_ASSERT()
#define SCTP_INP_INFO_WLOCK_ASSERT()
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_IPI_COUNT_INIT()
#define SCTP_IPI_COUNT_DESTROY()
#endif
/* Lock for INP */
#define SCTP_INP_LOCK_INIT(_inp)
#define SCTP_INP_LOCK_DESTROY(_inp)
#define SCTP_INP_RLOCK(_inp)
#define SCTP_INP_RUNLOCK(_inp)
#define SCTP_INP_WLOCK(_inp)
#define SCTP_INP_WUNLOCK(_inp)
#define SCTP_INP_RLOCK_ASSERT(_inp)
#define SCTP_INP_WLOCK_ASSERT(_inp)
#define SCTP_INP_INCR_REF(_inp)
#define SCTP_INP_DECR_REF(_inp)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp)
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp)
#define SCTP_ASOC_CREATE_LOCK(_inp)
#define SCTP_ASOC_CREATE_UNLOCK(_inp)
#define SCTP_INP_READ_INIT(_inp)
#define SCTP_INP_READ_DESTROY(_inp)
#define SCTP_INP_READ_LOCK(_inp)
#define SCTP_INP_READ_UNLOCK(_inp)
/* Lock for TCB */
#define SCTP_TCB_LOCK_INIT(_tcb)
#define SCTP_TCB_LOCK_DESTROY(_tcb)
#define SCTP_TCB_LOCK(_tcb)
#define SCTP_TCB_TRYLOCK(_tcb) 1
#define SCTP_TCB_UNLOCK(_tcb)
#define SCTP_TCB_UNLOCK_IFOWNED(_tcb)
#define SCTP_TCB_LOCK_ASSERT(_tcb)
#else
/*
* per tcb level locking
*/
#define SCTP_IPI_COUNT_INIT()
#if defined(_WIN32)
#define SCTP_WQ_ADDR_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_LOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_UNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_LOCK_ASSERT()
#if WINVER < 0x0600
#define SCTP_INP_INFO_LOCK_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_LOCK_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_TRYLOCK() \
TryEnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_LOCK_ASSERT()
#define SCTP_INP_INFO_RLOCK_ASSERT()
#define SCTP_INP_INFO_WLOCK_ASSERT()
#else
#define SCTP_INP_INFO_LOCK_INIT() \
InitializeSRWLock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_LOCK_DESTROY()
#define SCTP_INP_INFO_RLOCK() \
AcquireSRWLockShared(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_TRYLOCK() \
TryAcquireSRWLockShared(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WLOCK() \
AcquireSRWLockExclusive(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RUNLOCK() \
ReleaseSRWLockShared(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WUNLOCK() \
ReleaseSRWLockExclusive(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_LOCK_ASSERT()
#define SCTP_INP_INFO_RLOCK_ASSERT()
#define SCTP_INP_INFO_WLOCK_ASSERT()
#endif
#define SCTP_IP_PKTLOG_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_DESTROY () \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_LOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_UNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_pktlog_mtx))
/*
* The INP locks we will use for locking an SCTP endpoint, so for example if
* we want to change something at the endpoint level for example random_store
* or cookie secrets we lock the INP level.
*/
#define SCTP_INP_READ_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_LOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_UNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_LOCK_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_LOCK_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
EnterCriticalSection(&(_inp)->inp_mtx); \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
EnterCriticalSection(&(_inp)->inp_mtx); \
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_WLOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RLOCK_ASSERT(_tcb)
#define SCTP_INP_WLOCK_ASSERT(_tcb)
#define SCTP_INP_INCR_REF(_inp) atomic_add_int(&((_inp)->refcount), 1)
#define SCTP_INP_DECR_REF(_inp) atomic_subtract_int(&((_inp)->refcount), 1)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
InitializeCriticalSection(&(_inp)->inp_create_mtx)
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) \
DeleteCriticalSection(&(_inp)->inp_create_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
EnterCriticalSection(&(_inp)->inp_create_mtx); \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
EnterCriticalSection(&(_inp)->inp_create_mtx)
#endif
#define SCTP_INP_RUNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_mtx)
#define SCTP_INP_WUNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_mtx)
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
LeaveCriticalSection(&(_inp)->inp_create_mtx)
/*
* For the majority of things (once we have found the association) we will
* lock the actual association mutex. This will protect all the assoiciation
* level queues and streams and such. We will need to lock the socket layer
* when we stuff data up into the receiving sb_mb. I.e. we will need to do an
* extra SOCKBUF_LOCK(&so->so_rcv) even though the association is locked.
*/
#define SCTP_TCB_LOCK_INIT(_tcb) \
InitializeCriticalSection(&(_tcb)->tcb_mtx)
#define SCTP_TCB_LOCK_DESTROY(_tcb) \
DeleteCriticalSection(&(_tcb)->tcb_mtx)
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
EnterCriticalSection(&(_tcb)->tcb_mtx); \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
EnterCriticalSection(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_TRYLOCK(_tcb) ((TryEnterCriticalSection(&(_tcb)->tcb_mtx)))
#define SCTP_TCB_UNLOCK(_tcb) \
LeaveCriticalSection(&(_tcb)->tcb_mtx)
#define SCTP_TCB_LOCK_ASSERT(_tcb)
#else /* all Userspaces except Windows */
#define SCTP_WQ_ADDR_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(wq_addr_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_WQ_ADDR_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(wq_addr_mtx))
#ifdef INVARIANTS
#define SCTP_WQ_ADDR_LOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(wq_addr_mtx)) == 0, ("%s:%d: wq_addr_mtx already locked", __FILE__, __LINE__))
#define SCTP_WQ_ADDR_UNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(wq_addr_mtx)) == 0, ("%s:%d: wq_addr_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_WQ_ADDR_LOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(wq_addr_mtx))
#define SCTP_WQ_ADDR_UNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(wq_addr_mtx))
#endif
#define SCTP_WQ_ADDR_LOCK_ASSERT() \
KASSERT(pthread_mutex_trylock(&SCTP_BASE_INFO(wq_addr_mtx)) == EBUSY, ("%s:%d: wq_addr_mtx not locked", __FILE__, __LINE__))
#define SCTP_INP_INFO_LOCK_INIT() \
(void)pthread_rwlock_init(&SCTP_BASE_INFO(ipi_ep_mtx), &SCTP_BASE_VAR(rwlock_attr))
#define SCTP_INP_INFO_LOCK_DESTROY() \
(void)pthread_rwlock_destroy(&SCTP_BASE_INFO(ipi_ep_mtx))
#ifdef INVARIANTS
#define SCTP_INP_INFO_RLOCK() \
KASSERT(pthread_rwlock_rdlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s%d: ipi_ep_mtx already locked", __FILE__, __LINE__))
#define SCTP_INP_INFO_WLOCK() \
KASSERT(pthread_rwlock_wrlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s:%d: ipi_ep_mtx already locked", __FILE__, __LINE__))
#define SCTP_INP_INFO_RUNLOCK() \
KASSERT(pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s:%d: ipi_ep_mtx not locked", __FILE__, __LINE__))
#define SCTP_INP_INFO_WUNLOCK() \
KASSERT(pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_ep_mtx)) == 0, ("%s:%d: ipi_ep_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_INP_INFO_RLOCK() \
(void)pthread_rwlock_rdlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WLOCK() \
(void)pthread_rwlock_wrlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_RUNLOCK() \
(void)pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#define SCTP_INP_INFO_WUNLOCK() \
(void)pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_ep_mtx))
#endif
#define SCTP_INP_INFO_LOCK_ASSERT()
#define SCTP_INP_INFO_RLOCK_ASSERT()
#define SCTP_INP_INFO_WLOCK_ASSERT()
#define SCTP_INP_INFO_TRYLOCK() \
(!(pthread_rwlock_tryrdlock(&SCTP_BASE_INFO(ipi_ep_mtx))))
#define SCTP_IP_PKTLOG_INIT() \
(void)pthread_mutex_init(&SCTP_BASE_INFO(ipi_pktlog_mtx), &SCTP_BASE_VAR(mtx_attr))
#define SCTP_IP_PKTLOG_DESTROY() \
(void)pthread_mutex_destroy(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#ifdef INVARIANTS
#define SCTP_IP_PKTLOG_LOCK() \
KASSERT(pthread_mutex_lock(&SCTP_BASE_INFO(ipi_pktlog_mtx)) == 0, ("%s:%d: ipi_pktlog_mtx already locked", __FILE__, __LINE__))
#define SCTP_IP_PKTLOG_UNLOCK() \
KASSERT(pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_pktlog_mtx)) == 0, ("%s:%d: ipi_pktlog_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_IP_PKTLOG_LOCK() \
(void)pthread_mutex_lock(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#define SCTP_IP_PKTLOG_UNLOCK() \
(void)pthread_mutex_unlock(&SCTP_BASE_INFO(ipi_pktlog_mtx))
#endif
/*
* The INP locks we will use for locking an SCTP endpoint, so for example if
* we want to change something at the endpoint level for example random_store
* or cookie secrets we lock the INP level.
*/
#define SCTP_INP_READ_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_rdata_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_INP_READ_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_rdata_mtx)
#ifdef INVARIANTS
#define SCTP_INP_READ_LOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_rdata_mtx) == 0, ("%s:%d: inp_rdata_mtx already locked", __FILE__, __LINE__))
#define SCTP_INP_READ_UNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_rdata_mtx) == 0, ("%s:%d: inp_rdata_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_INP_READ_LOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_rdata_mtx)
#define SCTP_INP_READ_UNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_rdata_mtx)
#endif
#define SCTP_INP_LOCK_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_INP_LOCK_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx already locked", __FILE__, __LINE__)); \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx already locked", __FILE__, __LINE__)); \
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx already locked", __FILE__, __LINE__))
#define SCTP_INP_WLOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx already locked", __FILE__, __LINE__))
#endif
#define SCTP_INP_RUNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx not locked", __FILE__, __LINE__))
#define SCTP_INP_WUNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_mtx) == 0, ("%s:%d: inp_mtx not locked", __FILE__, __LINE__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_INP_RLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
(void)pthread_mutex_lock(&(_inp)->inp_mtx); \
} while (0)
#define SCTP_INP_WLOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_INP); \
(void)pthread_mutex_lock(&(_inp)->inp_mtx); \
} while (0)
#else
#define SCTP_INP_RLOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_mtx)
#define SCTP_INP_WLOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RUNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_mtx)
#define SCTP_INP_WUNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_mtx)
#endif
#define SCTP_INP_RLOCK_ASSERT(_inp) \
KASSERT(pthread_mutex_trylock(&(_inp)->inp_mtx) == EBUSY, ("%s:%d: inp_mtx not locked", __FILE__, __LINE__))
#define SCTP_INP_WLOCK_ASSERT(_inp) \
KASSERT(pthread_mutex_trylock(&(_inp)->inp_mtx) == EBUSY, ("%s:%d: inp_mtx not locked", __FILE__, __LINE__))
#define SCTP_INP_INCR_REF(_inp) atomic_add_int(&((_inp)->refcount), 1)
#define SCTP_INP_DECR_REF(_inp) atomic_subtract_int(&((_inp)->refcount), 1)
#define SCTP_ASOC_CREATE_LOCK_INIT(_inp) \
(void)pthread_mutex_init(&(_inp)->inp_create_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_ASOC_CREATE_LOCK_DESTROY(_inp) \
(void)pthread_mutex_destroy(&(_inp)->inp_create_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
KASSERT(pthread_mutex_lock(&(_inp)->inp_create_mtx) == 0, ("%s:%d: inp_create_mtx already locked", __FILE__, __LINE__)); \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
KASSERT(pthread_mutex_lock(&(_inp)->inp_create_mtx) == 0, ("%s:%d: inp_create_mtx already locked", __FILE__, __LINE__))
#endif
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
KASSERT(pthread_mutex_unlock(&(_inp)->inp_create_mtx) == 0, ("%s:%d: inp_create_mtx not locked", __FILE__, __LINE__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_ASOC_CREATE_LOCK(_inp) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_inp, NULL, SCTP_LOG_LOCK_CREATE); \
(void)pthread_mutex_lock(&(_inp)->inp_create_mtx); \
} while (0)
#else
#define SCTP_ASOC_CREATE_LOCK(_inp) \
(void)pthread_mutex_lock(&(_inp)->inp_create_mtx)
#endif
#define SCTP_ASOC_CREATE_UNLOCK(_inp) \
(void)pthread_mutex_unlock(&(_inp)->inp_create_mtx)
#endif
/*
* For the majority of things (once we have found the association) we will
* lock the actual association mutex. This will protect all the assoiciation
* level queues and streams and such. We will need to lock the socket layer
* when we stuff data up into the receiving sb_mb. I.e. we will need to do an
* extra SOCKBUF_LOCK(&so->so_rcv) even though the association is locked.
*/
#define SCTP_TCB_LOCK_INIT(_tcb) \
(void)pthread_mutex_init(&(_tcb)->tcb_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_TCB_LOCK_DESTROY(_tcb) \
(void)pthread_mutex_destroy(&(_tcb)->tcb_mtx)
#ifdef INVARIANTS
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
KASSERT(pthread_mutex_lock(&(_tcb)->tcb_mtx) == 0, ("%s:%d: tcb_mtx already locked", __FILE__, __LINE__)) \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
KASSERT(pthread_mutex_lock(&(_tcb)->tcb_mtx) == 0, ("%s:%d: tcb_mtx already locked", __FILE__, __LINE__))
#endif
#define SCTP_TCB_UNLOCK(_tcb) \
KASSERT(pthread_mutex_unlock(&(_tcb)->tcb_mtx) == 0, ("%s:%d: tcb_mtx not locked", __FILE__, __LINE__))
#else
#ifdef SCTP_LOCK_LOGGING
#define SCTP_TCB_LOCK(_tcb) do { \
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) \
sctp_log_lock(_tcb->sctp_ep, _tcb, SCTP_LOG_LOCK_TCB); \
(void)pthread_mutex_lock(&(_tcb)->tcb_mtx); \
} while (0)
#else
#define SCTP_TCB_LOCK(_tcb) \
(void)pthread_mutex_lock(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_UNLOCK(_tcb) (void)pthread_mutex_unlock(&(_tcb)->tcb_mtx)
#endif
#define SCTP_TCB_LOCK_ASSERT(_tcb) \
KASSERT(pthread_mutex_trylock(&(_tcb)->tcb_mtx) == EBUSY, ("%s:%d: tcb_mtx not locked", __FILE__, __LINE__))
#define SCTP_TCB_TRYLOCK(_tcb) (!(pthread_mutex_trylock(&(_tcb)->tcb_mtx)))
#endif
#endif /* SCTP_PER_SOCKET_LOCKING */
/*
* common locks
*/
/* copied over to compile */
#define SCTP_INP_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_INP_READ_CONTENDED(_inp) (0) /* Don't know if this is possible */
#define SCTP_ASOC_CREATE_LOCK_CONTENDED(_inp) (0) /* Don't know if this is possible */
/* socket locks */
#if defined(_WIN32)
#define SOCKBUF_LOCK_ASSERT(_so_buf)
#define SOCKBUF_LOCK(_so_buf) \
EnterCriticalSection(&(_so_buf)->sb_mtx)
#define SOCKBUF_UNLOCK(_so_buf) \
LeaveCriticalSection(&(_so_buf)->sb_mtx)
#define SOCK_LOCK(_so) \
SOCKBUF_LOCK(&(_so)->so_rcv)
#define SOCK_UNLOCK(_so) \
SOCKBUF_UNLOCK(&(_so)->so_rcv)
#else
#define SOCKBUF_LOCK_ASSERT(_so_buf) \
KASSERT(pthread_mutex_trylock(SOCKBUF_MTX(_so_buf)) == EBUSY, ("%s:%d: socket buffer not locked", __FILE__, __LINE__))
#ifdef INVARIANTS
#define SOCKBUF_LOCK(_so_buf) \
KASSERT(pthread_mutex_lock(SOCKBUF_MTX(_so_buf)) == 0, ("%s:%d: sockbuf_mtx already locked", __FILE__, __LINE__))
#define SOCKBUF_UNLOCK(_so_buf) \
KASSERT(pthread_mutex_unlock(SOCKBUF_MTX(_so_buf)) == 0, ("%s:%d: sockbuf_mtx not locked", __FILE__, __LINE__))
#else
#define SOCKBUF_LOCK(_so_buf) \
pthread_mutex_lock(SOCKBUF_MTX(_so_buf))
#define SOCKBUF_UNLOCK(_so_buf) \
pthread_mutex_unlock(SOCKBUF_MTX(_so_buf))
#endif
#define SOCK_LOCK(_so) \
SOCKBUF_LOCK(&(_so)->so_rcv)
#define SOCK_UNLOCK(_so) \
SOCKBUF_UNLOCK(&(_so)->so_rcv)
#endif
#define SCTP_STATLOG_INIT_LOCK()
#define SCTP_STATLOG_LOCK()
#define SCTP_STATLOG_UNLOCK()
#define SCTP_STATLOG_DESTROY()
#if defined(_WIN32)
/* address list locks */
#if WINVER < 0x0600
#define SCTP_IPI_ADDR_INIT() \
InitializeCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_DESTROY() \
DeleteCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WLOCK() \
EnterCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WUNLOCK() \
LeaveCriticalSection(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
#else
#define SCTP_IPI_ADDR_INIT() \
InitializeSRWLock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_DESTROY()
#define SCTP_IPI_ADDR_RLOCK() \
AcquireSRWLockShared(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RUNLOCK() \
ReleaseSRWLockShared(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WLOCK() \
AcquireSRWLockExclusive(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WUNLOCK() \
ReleaseSRWLockExclusive(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
#endif
/* iterator locks */
#define SCTP_ITERATOR_LOCK_INIT() \
InitializeCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_LOCK_DESTROY() \
DeleteCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_LOCK() \
EnterCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_UNLOCK() \
LeaveCriticalSection(&sctp_it_ctl.it_mtx)
#define SCTP_IPI_ITERATOR_WQ_INIT() \
InitializeCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_DESTROY() \
DeleteCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
EnterCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
LeaveCriticalSection(&sctp_it_ctl.ipi_iterator_wq_mtx)
#else
/* address list locks */
#define SCTP_IPI_ADDR_INIT() \
(void)pthread_rwlock_init(&SCTP_BASE_INFO(ipi_addr_mtx), &SCTP_BASE_VAR(rwlock_attr))
#define SCTP_IPI_ADDR_DESTROY() \
(void)pthread_rwlock_destroy(&SCTP_BASE_INFO(ipi_addr_mtx))
#ifdef INVARIANTS
#define SCTP_IPI_ADDR_RLOCK() \
KASSERT(pthread_rwlock_rdlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s:%d: ipi_addr_mtx already locked", __FILE__, __LINE__))
#define SCTP_IPI_ADDR_RUNLOCK() \
KASSERT(pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s:%d: ipi_addr_mtx not locked", __FILE__, __LINE__))
#define SCTP_IPI_ADDR_WLOCK() \
KASSERT(pthread_rwlock_wrlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s:%d: ipi_addr_mtx already locked", __FILE__, __LINE__))
#define SCTP_IPI_ADDR_WUNLOCK() \
KASSERT(pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_addr_mtx)) == 0, ("%s:%d: ipi_addr_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_IPI_ADDR_RLOCK() \
(void)pthread_rwlock_rdlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_RUNLOCK() \
(void)pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WLOCK() \
(void)pthread_rwlock_wrlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#define SCTP_IPI_ADDR_WUNLOCK() \
(void)pthread_rwlock_unlock(&SCTP_BASE_INFO(ipi_addr_mtx))
#endif
#define SCTP_IPI_ADDR_LOCK_ASSERT()
#define SCTP_IPI_ADDR_WLOCK_ASSERT()
/* iterator locks */
#define SCTP_ITERATOR_LOCK_INIT() \
(void)pthread_mutex_init(&sctp_it_ctl.it_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_ITERATOR_LOCK_DESTROY() \
(void)pthread_mutex_destroy(&sctp_it_ctl.it_mtx)
#ifdef INVARIANTS
#define SCTP_ITERATOR_LOCK() \
KASSERT(pthread_mutex_lock(&sctp_it_ctl.it_mtx) == 0, ("%s:%d: it_mtx already locked", __FILE__, __LINE__))
#define SCTP_ITERATOR_UNLOCK() \
KASSERT(pthread_mutex_unlock(&sctp_it_ctl.it_mtx) == 0, ("%s:%d: it_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_ITERATOR_LOCK() \
(void)pthread_mutex_lock(&sctp_it_ctl.it_mtx)
#define SCTP_ITERATOR_UNLOCK() \
(void)pthread_mutex_unlock(&sctp_it_ctl.it_mtx)
#endif
#define SCTP_IPI_ITERATOR_WQ_INIT() \
(void)pthread_mutex_init(&sctp_it_ctl.ipi_iterator_wq_mtx, &SCTP_BASE_VAR(mtx_attr))
#define SCTP_IPI_ITERATOR_WQ_DESTROY() \
(void)pthread_mutex_destroy(&sctp_it_ctl.ipi_iterator_wq_mtx)
#ifdef INVARIANTS
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
KASSERT(pthread_mutex_lock(&sctp_it_ctl.ipi_iterator_wq_mtx) == 0, ("%s:%d: ipi_iterator_wq_mtx already locked", __FILE__, __LINE__))
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
KASSERT(pthread_mutex_unlock(&sctp_it_ctl.ipi_iterator_wq_mtx) == 0, ("%s:%d: ipi_iterator_wq_mtx not locked", __FILE__, __LINE__))
#else
#define SCTP_IPI_ITERATOR_WQ_LOCK() \
(void)pthread_mutex_lock(&sctp_it_ctl.ipi_iterator_wq_mtx)
#define SCTP_IPI_ITERATOR_WQ_UNLOCK() \
(void)pthread_mutex_unlock(&sctp_it_ctl.ipi_iterator_wq_mtx)
#endif
#endif
#define SCTP_INCR_EP_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_ep), 1)
#define SCTP_DECR_EP_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_ep), 1)
#define SCTP_INCR_ASOC_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_asoc), 1)
#define SCTP_DECR_ASOC_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_asoc), 1)
#define SCTP_INCR_LADDR_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_laddr), 1)
#define SCTP_DECR_LADDR_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_laddr), 1)
#define SCTP_INCR_RADDR_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_raddr), 1)
#define SCTP_DECR_RADDR_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_raddr), 1)
#define SCTP_INCR_CHK_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_chunk), 1)
#define SCTP_DECR_CHK_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_chunk), 1)
#define SCTP_INCR_READQ_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_readq), 1)
#define SCTP_DECR_READQ_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_readq), 1)
#define SCTP_INCR_STRMOQ_COUNT() \
atomic_add_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1)
#define SCTP_DECR_STRMOQ_COUNT() \
atomic_subtract_int(&SCTP_BASE_INFO(ipi_count_strmoq), 1)
#endif
|
