-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathACMainLoop.c
1667 lines (1437 loc) · 55.1 KB
/
ACMainLoop.c
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
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/************************************************************************************************
* Copyright (c) 2006-2009 Laboratorio di Sistemi di Elaborazione e Bioingegneria Informatica *
* Universita' Campus BioMedico - Italy *
* *
* This program is free software; you can redistribute it and/or modify it under the terms *
* of the GNU General Public License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT ANY *
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A *
* PARTICULAR PURPOSE. See the GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along with this *
* program; if not, write to the: *
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, *
* MA 02111-1307, USA. *
* *
* -------------------------------------------------------------------------------------------- *
* Project: Capwap *
* *
* Authors : Ludovico Rossi ([email protected]) *
* Del Moro Andrea ([email protected]) *
* Giovannini Federica ([email protected]) *
* Massimo Vellucci ([email protected]) *
* Mauro Bisson ([email protected]) *
* Daniele De Sanctis ([email protected]) *
* Antonio Davoli ([email protected]) *
************************************************************************************************/
#include "CWAC.h"
#include "CWStevens.h"
#include "BELib.h"
#ifdef DMALLOC
#include "../dmalloc-5.5.0/dmalloc.h"
#endif
/* index of the current thread in the global array */
CWThreadSpecific gIndexSpecific;
/*max WTP thread, not exit*/
//unsigned int gWTPsThreadNum = 0;
int gCWWaitJoin = CW_WAIT_JOIN_DEFAULT;
CW_THREAD_RETURN_TYPE CWManageWTP(void *arg);
CW_THREAD_RETURN_TYPE CWManageTimers(void *arg);
void CWCriticalTimerExpiredHandler(int arg);
void CWSoftTimerExpiredHandler(int arg);
void CWACManageIncomingPacket(CWSocket sock,
char *buf,
int len,
int incomingInterfaceIndex,
CWNetworkLev4Address *addrPtr);
//void _CWCloseThread(int i);
void CWResetWTPProtocolManager(CWWTPProtocolManager *WTPProtocolManager);
__inline__ CWWTPManager *CWWTPByName(const char *addr);
__inline__ int CWWTPByAddress(CWNetworkLev4Address *addressPtr,
CWSocket sock);
void CWACEnterMainLoop() {
struct sigaction act;
CWLog("AC enters in the MAIN_LOOP");
/* set signals
* all the thread we spawn will inherit these settings
*/
/*
* BUG UMR03
*
* 20/10/2009 - Donato Capitella
*/
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
/* called when a timer requested by the thread has expired */
act.sa_handler = CWCriticalTimerExpiredHandler;
sigaction(CW_CRITICAL_TIMER_EXPIRED_SIGNAL, &act, NULL);
act.sa_flags = 0;
/* called when a timer requested by the thread has expired */
act.sa_handler = CWSoftTimerExpiredHandler;
sigaction(CW_SOFT_TIMER_EXPIRED_SIGNAL, &act, NULL);
/* signals will be unblocked by the threads that needs timers */
CWThreadSetSignals(SIG_BLOCK, 2, CW_CRITICAL_TIMER_EXPIRED_SIGNAL,
CW_SOFT_TIMER_EXPIRED_SIGNAL);
if(!(CWThreadCreateSpecific(&gIndexSpecific, NULL))) {
CWLog("Critical Error With Thread Data");
exit(1);
}
CWThread thread_interface;
if(!CWErr(CWCreateThread(&thread_interface, CWInterface, NULL))) {
CWLog("Error starting Interface Thread");
exit(1);
}
CW_REPEAT_FOREVER {
/* CWACManageIncomingPacket will be called
* when a new packet is ready to be read
*/
if(!CWErr(CWNetworkUnsafeMultiHomed(&gACSocket,
CWACManageIncomingPacket,
CW_FALSE)))
{
CWLog("Error CWNetworkUnsafeMultiHomed !!!");
exit(1);
}
//CWLog("main thread echo ...");
}
CWLog("CWACEnterMainLoop Finish !!!");
}
/* argument passed to the thread func */
typedef struct {
unsigned int index;
CWSocket sock;
int interfaceIndex;
} CWACThreadArg;
/*
* This callback function is called when there is something to read in a
* CWMultiHomedSocket (see ACMultiHomed.c).
*
* Params: sock, is the socket that can receive the packet and it can be
* used to reply.
* buf, (array of len chars) contains the packet which is ready
* on the socket's queue (obtained with MSG_PEEK).
* incomingInterfaceIndex, is the index (different from the system
* index, see ACMultiHomed.c) of the interface
* the packet was sent to, in the array returned
* by CWNetworkGetInterfaceAddresses. If the
* packet was sent to a broadcast/multicast address,
* incomingInterfaceIndex is -1.
*/
//main thread must signal child thread when live and wait,
//if child do something,unknown will happen
void CWACManageIncomingPacket(CWSocket sock,
char *buf,
int readBytes,
int incomingInterfaceIndex,
CWNetworkLev4Address *addrPtr) {
//CWWTPManager *wtpPtr = NULL;
int index = -1;
char* pData = NULL;
if(buf == NULL || addrPtr == NULL )
{
CWLog("buf == NULL || addrPtr == NULL, Fail !",__FILE__,__LINE__);
return;
}
/* check if sender address is known */
index = CWWTPByAddress(addrPtr, sock);
if(index >= 0 ) {
/* known WTP */
/* Clone data packet */
CWLog("F:%s,L:%d coming known WTP[%d], thread: %x,readBytes=%d",__FILE__,__LINE__,index, (unsigned int)gWTPs[index].thread,readBytes);
//timer experied ,main thread just wait
if( gWTPs[index].isRequestClose == CW_TRUE)
{
CWLog("%s %d Main thread find WTP[%d] time expired, req close thread: %x,main donothing!", __FILE__,__LINE__,index, (unsigned int)gWTPs[index].thread);
//CWThreadMutexLock(&(gWTPs[index].interfaceMutex));
//CWSignalThreadCondition(&(gWTPs[index].interfaceWait));
//CWThreadMutexUnlock(&(gWTPs[index].interfaceMutex));
//CWThreadSendSignal(gWTPs[index].thread, SIGKILL);
return;
}
if(gWTPs[index].wtpState != CW_RUN)
{
CWLog("%s %d Main thread find WTP[%d] not run!", __FILE__,__LINE__,index);
return;
}
CW_CREATE_OBJECT_SIZE_ERR(pData, readBytes, { CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, "Can't CWACManageIncomingPacket");CWLog("Out Of Memory"); return; });
memcpy(pData, buf, readBytes);
CWLog("F:%s,L:%d",__FILE__,__LINE__);
if(gWTPs[index].packetReceiveList == NULL)
{
CWLog("F:%s,L:%d [%d]packetReceiveList is NULL, Fail !",__FILE__,__LINE__,index);
//gWTPs[index].isRequestClose = CW_TRUE;
return;
}
//core
//pthread_cond_wait must lock
CWLog("F:%s,L:%d ",__FILE__,__LINE__);
if(gWTPs[index].wtpState != CW_RUN )
{
CWLog("%s %d Main thread find WTP[%d] not run !", __FILE__,__LINE__,index);
return;
}
CWLog("F:%s,L:%d ",__FILE__,__LINE__);
if(!CWErr(CWThreadMutexLock(&gWTPs[index].wtpMutex)))
{
CWLog("F:%s L:%d Error locking mutex!",__FILE__,__LINE__);
exit(1);
}
if(CW_FALSE == CWAddElementToSafeListTail(gWTPs[index].packetReceiveList, pData, readBytes))
{
CWLog("F:%s,L:%d CWAddElementToSafeListTail Fail !",__FILE__,__LINE__);
CWThreadMutexUnlock(&gWTPs[index].wtpMutex);
return;
}
CWThreadMutexUnlock(&gWTPs[index].wtpMutex));
CWLog("F:%s,L:%d ",__FILE__,__LINE__);
if(!CWErr(CWThreadMutexLock(&(gWTPs[index].wtpMutex))))
{
CWLog("F:%s,L:%d [%d] Error Lock wtpMutex, Fail!",__FILE__,__LINE__,index);
return;
}
CWLog("F:%s,L:%d ",__FILE__,__LINE__);
//main signal,if child not exit
if( gWTPs[index].isRequestClose == CW_TRUE)
{
CWLog("%s %d Main thread find WTP[%d] time expired, req close thread: %x,main donothing!", __FILE__,__LINE__,index, (unsigned int)gWTPs[index].thread);
//CWThreadMutexLock(&(gWTPs[index].interfaceMutex));
//CWSignalThreadCondition(&(gWTPs[index].interfaceWait));
//CWThreadMutexUnlock(&(gWTPs[index].interfaceMutex));
//return;
}
if(gWTPs[index].wtpState != CW_RUN )
{
CWLog("%s %d Main thread find WTP[%d] not run !", __FILE__,__LINE__,index);
//return;;
}
if ( (gWTPs[index].wtpState == CW_RUN) &&
(gWTPs[index].isRequestClose == CW_FALSE) &&
//(CWGetCountElementFromSafeList(gWTPs[index].packetReceiveList) == 0) &&
(gWTPs[index].interfaceCommand == NO_CMD))
{
CWLog("F:%s,L:%d [%d] Main signal thread: %x",__FILE__,__LINE__,index, (unsigned int)gWTPs[index].thread);
CWSignalThreadCondition(&(gWTPs[index].wtpWait));
}
else
{
CWLog("F:%s,L:%d [%d] not wait, don't signal !",__FILE__,__LINE__,index);
}
//wtpPtr->iwvaule = 1;
//then main thread block,because thread exit,singal api can't find
CWLog("F:%s,L:%d",__FILE__,__LINE__);
CWThreadMutexUnlock(&(gWTPs[index].wtpMutex));
CWLog("F:%s,L:%d CWUnlockSafeList",__FILE__,__LINE__);
} else {
/* unknown WTP */
CWLog("F:%s,L:%d coming unknown WTP",__FILE__,__LINE__);
int seqNum, tmp;
CWDiscoveryRequestValues values;
if(!CWErr(CWThreadMutexLock(&gActiveWTPsMutex)))
{
CWLog("F:%s L:%d Error locking the gActiveWTPsMutex mutex",__FILE__,__LINE__);
exit(1);
}
tmp = gActiveWTPs;
//CWThreadMutexUnlock(&gActiveWTPsMutex);
if(gActiveWTPs >= gMaxWTPs) {
CWLog("Too many WTPs");
CWThreadMutexUnlock(&gActiveWTPsMutex);
return;
}
CWThreadMutexUnlock(&gActiveWTPsMutex);
CWLog("Online WTP : gActiveWTPs = %d\n",gActiveWTPs);
//CWLog("buf =%s",buf);
CWLog("readBytes =%d",readBytes);
if(CWErr(CWParseDiscoveryRequestMessage(buf, readBytes, &seqNum, &values))) {
CWProtocolMessage *msgPtr;
CWLog("\n");
CWLog("######### Discovery State #########");
CWUseSockNtop(addrPtr, CWLog("CAPWAP Discovery Request from %s", str););
/* don't add this WTP to our list to minimize DoS
* attacks (will be added after join)
*/
/* destroy useless values */
CWDestroyDiscoveryRequestValues(&values);
/* send response to WTP
* note: we can consider reassembling only changed part
* AND/OR do this in a new thread.
*/
if(!CWErr(CWAssembleDiscoveryResponse(&msgPtr, seqNum))) {
/*
* note: maybe an out-of-memory memory error
* can be resolved without exit()-ing by
* killing some thread or doing other funky
* things.
*/
CWLog("Critical Error Assembling Discovery Response");
exit(1);
}
if(!CWErr(CWNetworkSendUnsafeUnconnected(sock,
addrPtr,
(*msgPtr).msg,
(*msgPtr).offset))) {
CWLog("Critical Error Sending Discovery Response");
exit(1);
}
CW_FREE_PROTOCOL_MESSAGE(*msgPtr);
CW_FREE_OBJECT(msgPtr);
return;
}
if(!CWParseJoinReqMsgNotValue(buf, readBytes))
{
CWLog("Message is not Discovery Request or Join Resquest, refuse access");
return;
}
else {
/* this isn't a Discovery Request */
//but must be joinRequest
unsigned int i;
CWACThreadArg *argPtr;
CWUseSockNtop(addrPtr, CWDebugLog("Possible Client Hello from %s", str););
//CWLog("i=%d", i);
/* look for the first free slot */
for(i = 0; i < CW_MAX_WTP ; i++)
{
if(gWTPs[i].wtpState == CW_IDLE)
{
break;
}
}
if(i < 0){
CWLog("WTP [%d], i < 0, refuse !",i);
return;
}
if(i >= CW_MAX_WTP){
CWLog("WTP [%d], more than Max %d, refuse!",i, CW_MAX_WTP);
return;
}
//thread not exit, i can not be used,big error !
if(gWTPs[i].isRequestClose == CW_TRUE)
{
CWLog("%s %d Main thread find WTP[%d] time expired, req close thread: %x fail once,signal it run !", __FILE__,__LINE__,i, (unsigned int)gWTPs[i].thread);
//CWThreadSendSignal(gWTPs[i].thread, SIGKILL);
CWThreadMutexLock(&(gWTPs[i].wtpMutex));
CWSignalThreadCondition(&(gWTPs[i].wtpWait));
CWThreadMutexUnlock(&(gWTPs[i].wtpMutex));
return;
}
CWLog("new WTP ID is %d",i);
//avoid child close faster than main thread find it to add packet
CWDestroyThreadMutex(&gWTPs[i].wtpMutex);
CWDestroyThreadMutex(&gWTPs[i].interfaceMutex);
CWDestroyThreadCondition(&gWTPs[i].wtpWait);
CWDestroyThreadCondition(&gWTPs[i].interfaceComplete);
if (!CWErr(CWCreateThreadMutex(&gWTPs[i].wtpMutex)))
{
CWLog("F:%s L:%d CWCreateThreadMutex Fail!",__FILE__,__LINE__);
return;
}
if (!CWErr(CWCreateThreadMutex(&gWTPs[i].interfaceMutex)))
{
CWLog("F:%s L:%d CWCreateThreadMutex Fail!",__FILE__,__LINE__);
return;
}
if (!CWErr(CWCreateThreadCondition(&gWTPs[i].wtpWait)))
{
CWLog("F:%s L:%d CWCreateThreadMutex Fail!",__FILE__,__LINE__);
return;
}
//CWDestroyThreadCondition(&gWTPs[i].interfaceComplete);
if (!CWErr(CWCreateThreadCondition(&gWTPs[i].interfaceComplete)))
{
CWLog("F:%s L:%d CWCreateThreadMutex Fail!",__FILE__,__LINE__);
return;
}
/* Capwap receive packets list */
//if (!CWErr(CWCreateSafeList(&gWTPs[i].packetReceiveList))) {
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("F:%s L:%d Error locking mutex!",__FILE__,__LINE__);
exit(1);
}
if (!(gWTPs[i].packetReceiveList = CWCreateSafeList()) ){
gWTPs[i].wtpState = CW_IDLE;
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
CWLog("F:%s L:%d CWCreateSafeList error !", __FILE__,__LINE__);
return;
}
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
//main thread must have the mutex
CWLog("F:%s,L:%d CWCreateSafeList gWTPs[%d].packetReceiveList success ",__FILE__,__LINE__,i);
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("F:%s L:%d Error locking mutex",__FILE__,__LINE__);
exit(1);
}
CW_COPY_NET_ADDR_PTR(&(gWTPs[i].address), addrPtr);
gWTPs[i].wtpState= CW_RUN;
gWTPs[i].isRequestClose = CW_FALSE;
CWLog("F:%s L:%d free gWTPs[%d].packetReceiveList begin",__FILE__,__LINE__,i);
CWCleanSafeList(gWTPs[i].packetReceiveList, free);
CWDestroySafeList(gWTPs[i].packetReceiveList);
CWLog("F:%s L:%d free gWTPs[%d].packetReceiveList end ",__FILE__,__LINE__,i);
//pointer NULL
gWTPs[i].packetReceiveList = NULL;
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
CWLog("F:%s,L:%d",__FILE__,__LINE__);
//CWSetMutexSafeList(gWTPs[i].packetReceiveList,
// &gWTPs[i].interfaceMutex);
//CWSetConditionSafeList(gWTPs[i].packetReceiveList,
// &gWTPs[i].interfaceWait);
/* Clone data packet */
CW_CREATE_OBJECT_SIZE_ERR(pData, readBytes, { CWLog("Out Of Memory"); return; });
memcpy(pData, buf, readBytes);
CWLog("F:%s,L:%d",__FILE__,__LINE__);
/*
CWLockSafeList(gWTPs[i].packetReceiveList);
CWAddElementToSafeListTail(gWTPs[i].packetReceiveList,
pData,
readBytes);
CWUnlockSafeList(gWTPs[i].packetReceiveList);
*/
if(!gWTPs[i].packetReceiveList)
{
CWLog("F:%s,L:%d gWTPs[%d].packetReceiveList is NULL, Fail !",__FILE__,__LINE__,i);
return;
}
CWLog("F:%s,L:%d CWLockSafeList",__FILE__,__LINE__);
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("F:%s L:%d Error locking mutex!",__FILE__,__LINE__);
exit(1);
}
if(CW_FALSE == CWAddElementToSafeListTail(gWTPs[i].packetReceiveList, pData, readBytes))
{
CWLog("F:%s,L:%d CWAddElementToSafeListTail Fail !",__FILE__,__LINE__);
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
return;
}
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
#if 0
if(i < gWTPsThreadNum)
{
CWLog("F:%s,L:%d WTPsThread AP is working ...,no create new thread",__FILE__,__LINE__);
return;
}
#endif
CW_CREATE_OBJECT_ERR(argPtr, CWACThreadArg, { CWLog("Out Of Memory"); return; });
argPtr->index = i;
argPtr->sock = sock;
argPtr->interfaceIndex = incomingInterfaceIndex;
/*
* If the packet was addressed to a broadcast address,
* just choose an interface we like (note: we can consider
* a bit load balancing instead of hard-coding 0-indexed
* interface). Btw, Join Request should not really be
* accepted if addressed to a broadcast address, so we
* could simply discard the packet and go on.
* If you leave this code, the WTP Count will increase
* for the interface we hard-code here, even if it is not
* necessary the interface we use to send packets to that
* WTP. If we really want to accept Join Request from
* broadcast address, we can consider asking to the kernel
* which interface will be used to send the packet to a
* specific address (if it remains the same) and than
* increment WTPCount for that interface instead of 0-indexed one.
*/
if (argPtr->interfaceIndex < 0) argPtr->interfaceIndex = 0;
/* create the thread that will manage this WTP */
CWLog("F:%s,L:%d CWCreateThread WTP [%d]",__FILE__,__LINE__, i);
if(!CWErr(CWCreateThread(&(gWTPs[i].thread), CWManageWTP, argPtr))) {
CW_FREE_OBJECT(argPtr);
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("F:%s L:%d Error locking mutex",__FILE__,__LINE__);
exit(1);
}
CWCleanSafeList(gWTPs[i].packetReceiveList, free);
CWDestroySafeList(gWTPs[i].packetReceiveList);
gWTPs[i].wtpState = CW_IDLE;
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
CWDebugLog("CWCreateThread CWManageWTP Fail! ");
return;
}
// operation useless
#if 0
if(!CWErr(CWThreadMutexLock(&gWTPs[i].interfaceMutex)))
{
CWLog("F:%s,L:%d Error Lock gWTPs[%d].interfaceMutex, Fail!",__FILE__,__LINE__,i);
return;
}
if(gWTPs[i].isRequestClose == CW_TRUE)
{
CWLog("%s %d Main thread find WTP[%d] time expired, req close thread: %x fail once,so close again !", __FILE__,__LINE__,index, (unsigned int)gWTPs[i].thread);
CWThreadMutexLock(&(gWTPs[i].interfaceMutex));
CWSignalThreadCondition(&(gWTPs[i].interfaceWait));
CWThreadMutexUnlock(&(gWTPs[i].interfaceMutex));
}
if ((gWTPs[i].isNotFree == CW_TRUE) &&
(gWTPs[i].isRequestClose == CW_FALSE) &&
//(CWGetCountElementFromSafeList(gWTPs[index].packetReceiveList) == 0) &&
(gWTPs[i].interfaceCommand == NO_CMD))
{
CWLog("F:%s,L:%d [%d] Main signal thread: %x",__FILE__,__LINE__,i, (unsigned int)gWTPs[i].thread);
CWSignalThreadCondition(&(gWTPs[i].interfaceWait));
}
else
{
CWLog("F:%s,L:%d [%d] not wait, don't signal !",__FILE__,__LINE__,i);
}
CWLog("F:%s,L:%d",__FILE__,__LINE__);
CWThreadMutexUnlock(&gWTPs[i].interfaceMutex);
CWLog("F:%s,L:%d CWUnlockSafeList",__FILE__,__LINE__);
#endif
#if 0
if(gWTPsThreadNum > CW_MAX_WTP)
{
CWLog("F:%s,L:%d gWTPsThreadNum > CW_MAX_WTP , Fail!",__FILE__,__LINE__);
return;
}
gWTPsThreadNum++;
CWLog("F:%s,L:%d gWTPsThreadNum = %d",__FILE__,__LINE__,gWTPsThreadNum);
#endif
}
}
//CWLog("F:%s,L:%d %s end",__FILE__,__LINE__,__func__);
}
/*
* Simple job: see if we have a thread that is serving address *addressPtr
*/
__inline__ int CWWTPByAddress(CWNetworkLev4Address *addressPtr, CWSocket sock) {
int i;
CWLog("CWWTPByAddress sock = %d",sock);
//if(addressPtr == NULL) return NULL;
if(addressPtr == NULL) return -1;
//CWLog("addr = %s",inet_ntoa(((struct sockaddr_in *) addressPtr)->sin_addr));
//CWLog("port = %d",((struct sockaddr_in *) addressPtr)->sin_port);
//CWThreadMutexLock(&gWTPsMutex);
//if(!CWErr(CWThreadMutexLock(&gWTPsMutex))) {
//CWLog("Error CWWTPByAddress locking the gWTPsMutex mutex");
//return NULL;
//}
for(i = 0; i < CW_MAX_WTP; i++) {
//CWLog("gWTPs[i].isNotFree = %d",gWTPs[i].isNotFree);
//CWLog("gWTPs[i].socket = %d",gWTPs[i].socket);
if((gWTPs[i].wtpState == CW_RUN )&&
&(gWTPs[i].address) != NULL &&
!sock_cmp_addr((struct sockaddr*)addressPtr,
(struct sockaddr*)&(gWTPs[i].address),
sizeof(CWNetworkLev4Address)) &&
!sock_cmp_port((struct sockaddr*)addressPtr,
(struct sockaddr*)&(gWTPs[i].address),
sizeof(CWNetworkLev4Address)) &&
gWTPs[i].socket == sock) {
/* we treat a WTP that sends packet to a different
* AC's interface as a new WTP
*/
//CWThreadMutexUnlock(&gWTPsMutex);
//return &(gWTPs[i]);
return i;
}
}
//CWThreadMutexUnlock(&gWTPsMutex);
//return NULL;
return -1;
}
/*
* Session's thread function: each thread will manage a single session
* with one WTP.
*/
CW_THREAD_RETURN_TYPE CWManageWTP(void *arg) {
unsigned int i = ((CWACThreadArg*)arg)->index;
CWSocket sock = ((CWACThreadArg*)arg)->sock;
int interfaceIndex = ((CWACThreadArg*)arg)->interfaceIndex;
CW_FREE_OBJECT(arg);
CWLog("F:%s,L:%d CWManageWTP AP index = %d",__FILE__,__LINE__, i);
if(!(CWThreadSetSpecific(&gIndexSpecific, &i))) {
CWLog("Critical Error with Thread Data");
_CWCloseThread(i);
}
gInterfaces[interfaceIndex].WTPCount++;
CWUseSockNtop(((struct sockaddr*) &(gInterfaces[interfaceIndex].addr)),
CWDebugLog("One more WTP on %s (%d)", str, interfaceIndex);
);
CWACInitBinding(i);
gWTPs[i].interfaceIndex = interfaceIndex;
gWTPs[i].socket = sock;
gWTPs[i].fragmentsList = NULL;
/* we're in the join state for this session */
gWTPs[i].currentState = CW_ENTER_JOIN;
gWTPs[i].subState = CW_DTLS_HANDSHAKE_IN_PROGRESS;
/**** ACInterface ****/
gWTPs[i].interfaceCommandProgress = CW_FALSE;
gWTPs[i].interfaceCommand = NO_CMD;
//CWDestroyThreadMutex(&gWTPs[i].interfaceMutex);
//CWCreateThreadMutex(&gWTPs[i].interfaceMutex);
//CWDestroyThreadMutex(&gWTPs[i].interfaceSingleton);
//CWCreateThreadMutex(&gWTPs[i].interfaceSingleton);
//CWDestroyThreadCondition(&gWTPs[i].interfaceWait);
//CWCreateThreadCondition(&gWTPs[i].interfaceWait);
//CWDestroyThreadCondition(&gWTPs[i].interfaceComplete);
//CWCreateThreadCondition(&gWTPs[i].interfaceComplete);
/**** ACInterface ****/
gWTPs[i].messages = NULL;
gWTPs[i].messagesCount = 0;
gWTPs[i].isRetransmitting = CW_FALSE;
gWTPs[i].retransmissionCount = 0;
//MAC
memset(gWTPs[i].MAC, 0, MAC_ADDR_LEN);
//BE: connectEvent
gWTPs[i].isConnect = CW_FALSE;
gWTPs[i].qosValues = NULL;
gWTPs[i].ofdmValues = NULL;
gWTPs[i].vendorValues = NULL;
gWTPs[i].vendorPortalValues = NULL;
CWResetWTPProtocolManager(&(gWTPs[i].WTPProtocolManager));
//buf
//CW_FREE_OBJECT(gWTPs[i].buf);
gWTPs[i].buf = NULL;
CW_CREATE_OBJECT_SIZE_ERR(gWTPs[i].buf,CW_BUFFER_SIZE,{ CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL);CWLog("Out Of Memory");CWCloseThread();});
memset(gWTPs[i].buf, 0, CW_BUFFER_SIZE);
gWTPs[i].session = NULL;
CWLog("New Session");
/* start WaitJoin timer */
if(!CWErr(CWTimerRequest(gCWWaitJoin,
&(gWTPs[i].thread),
&(gWTPs[i].currentTimer),
CW_CRITICAL_TIMER_EXPIRED_SIGNAL))) {
CWLog("%s %d [%d] CWTimerRequest Fail, close thread!",__FILE__,__LINE__,i);
gWTPs[i].isRequestClose = CW_TRUE;
}
#ifndef CW_NO_DTLS
CWDebugLog("Init DTLS Session");
if(!CWErr(CWSecurityInitSessionServer(&gWTPs[i],
sock,
gACSecurityContext,
&((gWTPs[i]).session),
&(gWTPs[i].pathMTU)))) {
CWTimerCancel(&(gWTPs[i].currentTimer));
CWLog("%s %d [%d] CWSecurityInitSessionServer Fail, close thread!",__FILE__,__LINE__,i);
gWTPs[i].isRequestClose = CW_TRUE;
}
#endif
(gWTPs[i]).subState = CW_WAITING_REQUEST;
if(gCWForceMTU > 0) gWTPs[i].pathMTU = gCWForceMTU;
CWDebugLog("Path MTU for this Session: %d", gWTPs[i].pathMTU);
CW_REPEAT_FOREVER
{
int readBytes;
CWProtocolMessage msg;
CWBool dataFlag = CW_FALSE;
msg.msg = NULL;
msg.offset = 0;
/* Wait WTP action */
//if pthread not come here,the packet will wait,so packet list grow
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("Error gWTPs[%d] wtpMutex!",i);
gWTPs[i].isRequestClose = CW_TRUE;
}
while ((gWTPs[i].isRequestClose == CW_FALSE) &&
(CWGetCountElementFromSafeList(gWTPs[i].packetReceiveList) == 0) &&
(gWTPs[i].interfaceCommand == NO_CMD) &&
(gWTPs[i].wtpState == CW_RUN)) {
CWLog("[%d]CWWaitThreadCondition start",i);
/*TODO: Check system */
/*
when parent talk, child should be here;
so child do sth quick as soon as possiblie.
*/
CWWaitThreadCondition(&gWTPs[i].wtpWait,
&gWTPs[i].wtpMutex);
//gWTPs[i].iwvaule = 0;
CWLog("[%d]CWWaitThreadCondition end",i);
}
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
//CWLog("%s %d ",__FILE__,__LINE__);
//last this index thread not close finish,but this run here
if(gWTPs[i].wtpState != CW_RUN)
{
CWLog("[%d]not run,perhaps other thread index = %d not exit complete!",i,i);
continue;
}
if (gWTPs[i].isRequestClose) {
CWLog("Request close thread");
//can't exit?
_CWCloseThread(i);
//continue;
//exit...
return NULL;
}
//CWLog("%s %d",__FILE__,__LINE__);
CWThreadSetSignals(SIG_BLOCK,
2,
CW_SOFT_TIMER_EXPIRED_SIGNAL,
CW_CRITICAL_TIMER_EXPIRED_SIGNAL);
CWLog("WTP[%d] has %d packet to analysis ...",i,CWGetCountElementFromSafeList(gWTPs[i].packetReceiveList));
if (CWGetCountElementFromSafeList(gWTPs[i].packetReceiveList) > 0) {
CWBool bCrypt = CW_FALSE;
char *pBuffer = NULL;
//CWThreadMutexLock(&gWTPs[i].interfaceMutex);
/*
if(!CWErr(CWThreadMutexLock(&gWTPs[i].interfaceMutex))) {
CWLog("Error gWTPs[i].interfaceMutex !");
CWCloseThread();
}
*/
pBuffer = (char *)CWGetHeadElementFromSafeList(gWTPs[i].packetReceiveList, NULL);
//why
//if(pBuffer == NULL || strlen(pBuffer) < 1)
if(pBuffer == NULL)
{
CWLog("%s %d [%d] packet len not right ,exit thread !",__FILE__,__LINE__,i);
//CWThreadMutexUnlock(&gWTPs[i].interfaceMutex);
//gWTPs[i].isRequestClose = CW_TRUE;
_CWCloseThread(i);
}
//CWThreadMutexUnlock(&gWTPs[i].interfaceMutex);
if ((pBuffer[0] & 0x0f) == CW_PACKET_CRYPT)
bCrypt = CW_TRUE;
// CWLog("%s %d ",__FILE__,__LINE__);
if (bCrypt) {
CWDebugLog("Receive a security packet");
CWLog("Don't parse security packet,drop it");
#ifdef CW_NO_DTLS
//core fix
//CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
//continue;
CWLog("Close thread");
_CWCloseThread(i);
#else
//CWSecurityReceive core ????
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex))) {
CWLog("%s %d [%d] CWThreadMutexLock Fail, close thread!",__FILE__,__LINE__,i);
//gWTPs[i].isRequestClose = CW_TRUE;
_CWCloseThread(i);
}
CWLog("%s %d apindex = %d, CWRemoveHeadElementFromSafeList",__FILE__,__LINE__,i);
pBuffer = (char*)CWRemoveHeadElementFromSafeList(gWTPs[i].packetReceiveList, &readBytes);
CWLog("%s %d [%d] packet len readBytes=%d",__FILE__,__LINE__,i,readBytes);
if(pBuffer == NULL)
{
CWLog("%s %d [%d] packet len not right ,exit thread !",__FILE__,__LINE__,i);
//CWThreadMutexUnlock(&gWTPs[i].interfaceMutex);
//gWTPs[i].isRequestClose = CW_TRUE;
CWThreadMutexUnlock(&gWTPs[i].wtpMutexx);
_CWCloseThread(i);
}
else
{
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
memset(gWTPs[i].buf, 0, CW_BUFFER_SIZE);
memcpy(gWTPs[i].buf, pBuffer, readBytes);
CW_FREE_OBJECT(pBuffer);
}
if(!CWErr(CWSecurityReceive(gWTPs[i].session,
gWTPs[i].buf,
CW_BUFFER_SIZE - 1,
&readBytes))) {
/* error */
CWDebugLog("Error during security receive");
CWLog("Error during security receive");
CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
//gWTPs[i].isRequestClose = CW_TRUE;
_CWCloseThread(i);
}
#endif
}
else {
//CWThreadMutexLock(&gWTPs[i].interfaceMutex);
if(!CWErr(CWThreadMutexLock(&gWTPs[i].wtpMutex)))
{
CWLog("%s %d [%d] CWThreadMutexLock Fail, close thread!",__FILE__,__LINE__,i);
//gWTPs[i].isRequestClose = CW_TRUE;
_CWCloseThread(i);
}
//coredump
CWLog("%s %d apindex = %d, CWRemoveHeadElementFromSafeList",__FILE__,__LINE__,i);
pBuffer = (char*)CWRemoveHeadElementFromSafeList(gWTPs[i].packetReceiveList, &readBytes);
CWLog("%s %d [%d] packet len readBytes=%d",__FILE__,__LINE__,i,readBytes);
if(pBuffer == NULL)
{
CWLog("%s %d [%d] packet len not right ,exit thread !",__FILE__,__LINE__,i);
//CWThreadMutexUnlock(&gWTPs[i].interfaceMutex);
//gWTPs[i].isRequestClose = CW_TRUE;
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
_CWCloseThread(i);
}
else
{
CWThreadMutexUnlock(&gWTPs[i].wtpMutex);
memset(gWTPs[i].buf, 0, CW_BUFFER_SIZE);
memcpy(gWTPs[i].buf, pBuffer, readBytes);
CW_FREE_OBJECT(pBuffer);
}
}
if(!CWProtocolParseFragment(gWTPs[i].buf,
readBytes,
&(gWTPs[i].fragmentsList),
&msg,
&dataFlag)) {
if(CWErrorGetLastErrorCode() == CW_ERROR_NEED_RESOURCE) {
CWLog("Need At Least One More Fragment");
}
else {
CWErrorHandleLast();
}
//CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
CWThreadSetSignals(SIG_UNBLOCK, 2,
CW_SOFT_TIMER_EXPIRED_SIGNAL,
CW_CRITICAL_TIMER_EXPIRED_SIGNAL);
CWLog("%s %d [%d] CWProtocolParseFragment continue ...",__FILE__,__LINE__,i);
continue;
}
CWLog("F:%s L:%d",__FILE__,__LINE__);
switch(gWTPs[i].currentState)
{
case CW_ENTER_JOIN:
{
/* we're inside the join state */
if(!ACEnterJoin(i, &msg))
{
if(CWErrorGetLastErrorCode() == CW_ERROR_INVALID_FORMAT)
{
/* Log and ignore other messages */
CWErrorHandleLast();
CWLog("Received something different from a Join Request");
}
else
{
/* critical error, close session */
CWErrorHandleLast();
CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
CWLog("ACEnterJoin critical error !!!");
CWLog("%s %d [%d] close thread!",__FILE__,__LINE__,i);
gWTPs[i].isRequestClose = CW_TRUE;
}
}
break;
}
case CW_ENTER_CONFIGURE:
{
if(!ACEnterConfigure(i, &msg))
{
//CWLog("ACEnterConfigure Fail !!!");
if(CWErrorGetLastErrorCode() == CW_ERROR_INVALID_FORMAT)
{
/* Log and ignore other messages */
CWErrorHandleLast();
CWLog("Received something different from a Configure Request");
}
else
{
/* critical error, close session */
CWErrorHandleLast();
CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
CWLog("ACEnterConfigure critical error !!!");
CWLog("%s %d [%d] close thread!",__FILE__,__LINE__,i);
gWTPs[i].isRequestClose = CW_TRUE;
}
}
break;
}
case CW_ENTER_DATA_CHECK:
{
if(!ACEnterDataCheck(i, &msg))
{
if(CWErrorGetLastErrorCode() == CW_ERROR_INVALID_FORMAT)
{
/* Log and ignore other messages */
CWErrorHandleLast();
CWLog("Received something different from a Change State Event Request");
}
else
{
/* critical error, close session */
CWErrorHandleLast();
CWThreadSetSignals(SIG_UNBLOCK, 1, CW_SOFT_TIMER_EXPIRED_SIGNAL);
CWLog("%s %d [%d] close thread!",__FILE__,__LINE__,i);
gWTPs[i].isRequestClose = CW_TRUE;
}
}
if(gWTPs[i].isConnect == CW_TRUE)
{
CWLog("[F:%s, L:%d]CW_ENTER_DATA_CHECK Connect begin...",__FILE__,__LINE__);
int seqNum = CWGetSeqNum();
if (CWAssembleConfigurationUpdateRequest(&(gWTPs[i].messages),
&(gWTPs[i].messagesCount),
gWTPs[i].pathMTU,
seqNum, CONFIG_UPDATE_REQ_VENDOR_STATE_ELEMENT_TYPE)) {
if(CWACSendAcknowledgedPacket(i, CW_MSG_TYPE_VALUE_CONFIGURE_UPDATE_RESPONSE, seqNum))
CWLog("[F:%s, L:%d]CONFIGURE_UPDATE_REQUEST Send...",__FILE__,__LINE__);
else
CWACStopRetransmission(i);
}
}
break;
}
case CW_ENTER_RUN:
{
CWLog("F:%s L:%d",__FILE__,__LINE__);
if(!ACEnterRun(i, &msg, dataFlag))
{
CWLog("F:%s,L:%d",__FILE__,__LINE__);