forked from LudovicRousseau/CCID
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ifdhandler.c
2293 lines (1915 loc) · 61.6 KB
/
ifdhandler.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
/*
ifdhandler.c: IFDH API
Copyright (C) 2003-2010 Ludovic Rousseau
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include "misc.h"
#include <pcsclite.h>
#include <ifdhandler.h>
#include <reader.h>
#include "ccid.h"
#include "defs.h"
#include "ccid_ifdhandler.h"
#include "debug.h"
#include "utils.h"
#include "commands.h"
#include "towitoko/atr.h"
#include "towitoko/pps.h"
#include "parser.h"
#include "strlcpycat.h"
#ifdef HAVE_PTHREAD
#include <pthread.h>
#endif
/* Array of structures to hold the ATR and other state value of each slot */
static CcidDesc CcidSlots[CCID_DRIVER_MAX_READERS];
/* global mutex */
#ifdef HAVE_PTHREAD
static pthread_mutex_t ifdh_context_mutex = PTHREAD_MUTEX_INITIALIZER;
#endif
int LogLevel = DEBUG_LEVEL_CRITICAL | DEBUG_LEVEL_INFO;
int DriverOptions = 0;
int PowerOnVoltage = -1;
static int DebugInitialized = FALSE;
/* local functions */
static void init_driver(void);
static char find_baud_rate(unsigned int baudrate, unsigned int *list);
static unsigned int T0_card_timeout(double f, double d, int TC1, int TC2,
int clock_frequency);
static unsigned int T1_card_timeout(double f, double d, int TC1, int BWI,
int CWI, int clock_frequency);
static int get_IFSC(ATR_t *atr, int *i);
static void FreeChannel(int reader_index)
{
#ifdef HAVE_PTHREAD
(void)pthread_mutex_lock(&ifdh_context_mutex);
#endif
(void)ClosePort(reader_index);
free(CcidSlots[reader_index].readerName);
memset(&CcidSlots[reader_index], 0, sizeof(CcidSlots[reader_index]));
ReleaseReaderIndex(reader_index);
#ifdef HAVE_PTHREAD
(void)pthread_mutex_unlock(&ifdh_context_mutex);
#endif
}
static RESPONSECODE CreateChannelByNameOrChannel(DWORD Lun,
LPSTR lpcDevice, DWORD Channel)
{
RESPONSECODE return_value = IFD_SUCCESS;
int reader_index;
status_t ret;
if (! DebugInitialized)
init_driver();
if (lpcDevice)
{
DEBUG_INFO3("Lun: " DWORD_X ", device: %s", Lun, lpcDevice);
}
else
{
DEBUG_INFO3("Lun: " DWORD_X ", Channel: " DWORD_X, Lun, Channel);
}
#ifdef HAVE_PTHREAD
(void)pthread_mutex_lock(&ifdh_context_mutex);
#endif
reader_index = GetNewReaderIndex(Lun);
#ifdef HAVE_PTHREAD
(void)pthread_mutex_unlock(&ifdh_context_mutex);
#endif
if (-1 == reader_index)
return IFD_COMMUNICATION_ERROR;
/* Reset ATR buffer */
CcidSlots[reader_index].nATRLength = 0;
*CcidSlots[reader_index].pcATRBuffer = '\0';
/* Reset PowerFlags */
CcidSlots[reader_index].bPowerFlags = POWERFLAGS_RAZ;
/* reader name */
if (lpcDevice)
CcidSlots[reader_index].readerName = strdup(lpcDevice);
else
CcidSlots[reader_index].readerName = strdup("no name");
/* init T=1 structure just in case */
t1_init(&CcidSlots[reader_index].t1, reader_index);
if (lpcDevice)
ret = OpenPortByName(reader_index, lpcDevice);
else
ret = OpenPort(reader_index, Channel);
if (ret != STATUS_SUCCESS)
{
if (STATUS_NO_SUCH_DEVICE == ret)
{
DEBUG_INFO1("failed");
return_value = IFD_NO_SUCH_DEVICE;
}
else
{
DEBUG_CRITICAL("failed");
return_value = IFD_COMMUNICATION_ERROR;
}
goto error;
}
else
{
unsigned char pcbuffer[SIZE_GET_SLOT_STATUS];
unsigned int oldReadTimeout;
RESPONSECODE cmd_ret;
_ccid_descriptor *ccid_descriptor = get_ccid_descriptor(reader_index);
/* Maybe we have a special treatment for this reader */
(void)ccid_open_hack_pre(reader_index);
/* Try to access the reader */
/* This "warm up" sequence is sometimes needed when pcscd is
* restarted with the reader already connected. We get some
* "usb_bulk_read: Resource temporarily unavailable" on the first
* few tries. It is an empirical hack */
/* The reader may have to start here so give it some time */
cmd_ret = CmdGetSlotStatus(reader_index, pcbuffer);
if (IFD_NO_SUCH_DEVICE == cmd_ret)
{
return_value = cmd_ret;
goto error;
}
/* save the current read timeout computed from card capabilities */
oldReadTimeout = ccid_descriptor->readTimeout;
/* 100 ms just to resync the USB toggle bits */
/* Do not use a fixed 100 ms value but compute it from the
* default timeout. It is now possible to use a different value
* by changing readTimeout in ccid_open_hack_pre() */
ccid_descriptor->readTimeout = ccid_descriptor->readTimeout * 100.0 / DEFAULT_COM_READ_TIMEOUT;
if ((IFD_COMMUNICATION_ERROR == CmdGetSlotStatus(reader_index, pcbuffer))
&& (IFD_COMMUNICATION_ERROR == CmdGetSlotStatus(reader_index, pcbuffer)))
{
DEBUG_CRITICAL("failed");
return_value = IFD_COMMUNICATION_ERROR;
}
else
{
/* Maybe we have a special treatment for this reader */
return_value = ccid_open_hack_post(reader_index);
if (return_value != IFD_SUCCESS)
{
DEBUG_CRITICAL("failed");
}
}
/* set back the old timeout */
ccid_descriptor->readTimeout = oldReadTimeout;
}
error:
if (return_value != IFD_SUCCESS)
{
/* release the allocated resources */
FreeChannel(reader_index);
}
return return_value;
} /* CreateChannelByNameOrChannel */
EXTERNAL RESPONSECODE IFDHCreateChannelByName(DWORD Lun, LPSTR lpcDevice)
{
return CreateChannelByNameOrChannel(Lun, lpcDevice, -1);
}
EXTERNAL RESPONSECODE IFDHCreateChannel(DWORD Lun, DWORD Channel)
{
/*
* Lun - Logical Unit Number, use this for multiple card slots or
* multiple readers. 0xXXXXYYYY - XXXX multiple readers, YYYY multiple
* slots. The resource manager will set these automatically. By
* default the resource manager loads a new instance of the driver so
* if your reader does not have more than one smartcard slot then
* ignore the Lun in all the functions. Future versions of PC/SC might
* support loading multiple readers through one instance of the driver
* in which XXXX would be important to implement if you want this.
*/
/*
* Channel - Channel ID. This is denoted by the following: 0x000001 -
* /dev/pcsc/1 0x000002 - /dev/pcsc/2 0x000003 - /dev/pcsc/3
*
* USB readers may choose to ignore this parameter and query the bus
* for the particular reader.
*/
/*
* This function is required to open a communications channel to the
* port listed by Channel. For example, the first serial reader on
* COM1 would link to /dev/pcsc/1 which would be a sym link to
* /dev/ttyS0 on some machines This is used to help with intermachine
* independance.
*
* Once the channel is opened the reader must be in a state in which
* it is possible to query IFDHICCPresence() for card status.
*
* returns:
*
* IFD_SUCCESS IFD_COMMUNICATION_ERROR
*/
return CreateChannelByNameOrChannel(Lun, NULL, Channel);
} /* IFDHCreateChannel */
EXTERNAL RESPONSECODE IFDHCloseChannel(DWORD Lun)
{
/*
* This function should close the reader communication channel for the
* particular reader. Prior to closing the communication channel the
* reader should make sure the card is powered down and the terminal
* is also powered down.
*
* returns:
*
* IFD_SUCCESS IFD_COMMUNICATION_ERROR
*/
int reader_index;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO3("%s (lun: " DWORD_X ")", CcidSlots[reader_index].readerName,
Lun);
/* Restore the default timeout
* No need to wait too long if the reader disapeared */
get_ccid_descriptor(reader_index)->readTimeout = DEFAULT_COM_READ_TIMEOUT;
(void)CmdPowerOff(reader_index);
/* No reader status check, if it failed, what can you do ? :) */
FreeChannel(reader_index);
return IFD_SUCCESS;
} /* IFDHCloseChannel */
#if !defined(TWIN_SERIAL)
static RESPONSECODE IFDHPolling(DWORD Lun, int timeout)
{
int reader_index;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
/* log only if DEBUG_LEVEL_PERIODIC is set */
if (LogLevel & DEBUG_LEVEL_PERIODIC)
DEBUG_INFO4("%s (lun: " DWORD_X ") %d ms",
CcidSlots[reader_index].readerName, Lun, timeout);
return InterruptRead(reader_index, timeout);
}
/* on an ICCD device the card is always inserted
* so no card movement will ever happen: just do nothing */
static RESPONSECODE IFDHSleep(DWORD Lun, int timeout)
{
int reader_index;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO4("%s (lun: " DWORD_X ") %d ms",
CcidSlots[reader_index].readerName, Lun, timeout);
/* just sleep for 5 seconds since the polling thread is NOT killable
* so pcscd event thread must loop to exit cleanly
*
* Once the driver (libusb in fact) will support
* TAG_IFD_POLLING_THREAD_KILLABLE then we could use a much longer delay
* and be killed before pcscd exits
*/
(void)usleep(timeout * 1000);
return IFD_SUCCESS;
}
static RESPONSECODE IFDHStopPolling(DWORD Lun)
{
int reader_index;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO3("%s (lun: " DWORD_X ")",
CcidSlots[reader_index].readerName, Lun);
(void)InterruptStop(reader_index);
return IFD_SUCCESS;
}
#endif
EXTERNAL RESPONSECODE IFDHGetCapabilities(DWORD Lun, DWORD Tag,
PDWORD Length, PUCHAR Value)
{
/*
* This function should get the slot/card capabilities for a
* particular slot/card specified by Lun. Again, if you have only 1
* card slot and don't mind loading a new driver for each reader then
* ignore Lun.
*
* Tag - the tag for the information requested example: TAG_IFD_ATR -
* return the Atr and its size (required). these tags are defined in
* ifdhandler.h
*
* Length - the length of the returned data Value - the value of the
* data
*
* returns:
*
* IFD_SUCCESS IFD_ERROR_TAG
*/
int reader_index;
RESPONSECODE return_value = IFD_SUCCESS;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO4("tag: 0x" DWORD_X ", %s (lun: " DWORD_X ")", Tag,
CcidSlots[reader_index].readerName, Lun);
switch (Tag)
{
case TAG_IFD_ATR:
case SCARD_ATTR_ATR_STRING:
/* If Length is not zero, powerICC has been performed.
* Otherwise, return NULL pointer
* Buffer size is stored in *Length */
if ((int)*Length >= CcidSlots[reader_index].nATRLength)
{
*Length = CcidSlots[reader_index].nATRLength;
memcpy(Value, CcidSlots[reader_index].pcATRBuffer, *Length);
}
else
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
break;
case SCARD_ATTR_ICC_INTERFACE_STATUS:
*Length = 1;
if (IFD_ICC_PRESENT == IFDHICCPresence(Lun))
/* nonzero if contact is active */
*Value = 1;
else
/* smart card electrical contact is not active */
*Value = 0;
break;
case SCARD_ATTR_ICC_PRESENCE:
*Length = 1;
/* Single byte indicating smart card presence:
* 0 = not present
* 1 = card present but not swallowed (applies only if
* reader supports smart card swallowing)
* 2 = card present (and swallowed if reader supports smart
* card swallowing)
* 4 = card confiscated. */
if (IFD_ICC_PRESENT == IFDHICCPresence(Lun))
/* Card present */
*Value = 2;
else
/* Not present */
*Value = 0;
break;
#ifdef HAVE_PTHREAD
case TAG_IFD_SIMULTANEOUS_ACCESS:
if (*Length >= 1)
{
*Length = 1;
*Value = CCID_DRIVER_MAX_READERS;
}
else
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
break;
case TAG_IFD_THREAD_SAFE:
if (*Length >= 1)
{
*Length = 1;
#ifdef __APPLE__
*Value = 0; /* Apple pcscd is bogus (rdar://problem/5697388) */
#else
*Value = 1; /* Can talk to multiple readers at the same time */
#endif
}
else
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
break;
#endif
case TAG_IFD_SLOTS_NUMBER:
if (*Length >= 1)
{
*Length = 1;
*Value = 1 + get_ccid_descriptor(reader_index) -> bMaxSlotIndex;
#ifdef USE_COMPOSITE_AS_MULTISLOT
{
/* On MacOS X or Linux+libusb we can simulate a
* composite device with 2 CCID interfaces by a
* multi-slot reader */
int readerID = get_ccid_descriptor(reader_index) -> readerID;
/* 2 CCID interfaces */
if ((GEMALTOPROXDU == readerID)
|| (GEMALTOPROXSU == readerID)
|| (HID_OMNIKEY_5422 == readerID))
*Value = 2;
/* 4 CCID interfaces */
if (FEITIANR502DUAL == readerID)
*Value = 4;
}
#endif
DEBUG_INFO2("Reader supports %d slot(s)", *Value);
}
else
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
break;
case TAG_IFD_SLOT_THREAD_SAFE:
if (*Length >= 1)
{
*Length = 1;
*Value = 0; /* Can NOT talk to multiple slots at the same time */
}
else
return_value = IFD_ERROR_INSUFFICIENT_BUFFER;
break;
case SCARD_ATTR_VENDOR_IFD_VERSION:
{
int IFD_bcdDevice = get_ccid_descriptor(reader_index)->IFD_bcdDevice;
/* Vendor-supplied interface device version (DWORD in the form
* 0xMMmmbbbb where MM = major version, mm = minor version, and
* bbbb = build number). */
*Length = 4;
if (Value)
*(uint32_t *)Value = IFD_bcdDevice << 16;
}
break;
case SCARD_ATTR_VENDOR_NAME:
{
const char *sIFD_iManufacturer = get_ccid_descriptor(reader_index) -> sIFD_iManufacturer;
if (sIFD_iManufacturer)
{
strlcpy((char *)Value, sIFD_iManufacturer, *Length);
*Length = strlen((char *)Value) +1;
}
else
{
/* not supported */
*Length = 0;
}
}
break;
case SCARD_ATTR_MAXINPUT:
*Length = sizeof(uint32_t);
if (Value)
*(uint32_t *)Value = get_ccid_descriptor(reader_index) -> dwMaxCCIDMessageLength -10;
break;
#if !defined(TWIN_SERIAL)
case TAG_IFD_POLLING_THREAD_WITH_TIMEOUT:
{
_ccid_descriptor *ccid_desc;
/* default value: not supported */
*Length = 0;
ccid_desc = get_ccid_descriptor(reader_index);
/* CCID and not ICCD */
if ((PROTOCOL_CCID == ccid_desc -> bInterfaceProtocol)
/* 3 end points */
&& (3 == ccid_desc -> bNumEndpoints))
{
*Length = sizeof(void *);
if (Value)
*(void **)Value = IFDHPolling;
}
if ((PROTOCOL_ICCD_A == ccid_desc->bInterfaceProtocol)
|| (PROTOCOL_ICCD_B == ccid_desc->bInterfaceProtocol))
{
*Length = sizeof(void *);
if (Value)
*(void **)Value = IFDHSleep;
}
}
break;
case TAG_IFD_POLLING_THREAD_KILLABLE:
{
_ccid_descriptor *ccid_desc;
/* default value: not supported */
*Length = 0;
ccid_desc = get_ccid_descriptor(reader_index);
if ((PROTOCOL_ICCD_A == ccid_desc->bInterfaceProtocol)
|| (PROTOCOL_ICCD_B == ccid_desc->bInterfaceProtocol))
{
*Length = 1; /* 1 char */
if (Value)
*Value = 1; /* TRUE */
}
}
break;
case TAG_IFD_STOP_POLLING_THREAD:
{
_ccid_descriptor *ccid_desc;
/* default value: not supported */
*Length = 0;
ccid_desc = get_ccid_descriptor(reader_index);
/* CCID and not ICCD */
if ((PROTOCOL_CCID == ccid_desc -> bInterfaceProtocol)
/* 3 end points */
&& (3 == ccid_desc -> bNumEndpoints))
{
*Length = sizeof(void *);
if (Value)
*(void **)Value = IFDHStopPolling;
}
}
break;
#endif
#ifdef TAG_IFD_DEVICE_REMOVED
case TAG_IFD_DEVICE_REMOVED:
if (Value && (1 == *Length))
Value[0] = 1;
break;
#endif
case SCARD_ATTR_VENDOR_IFD_SERIAL_NO:
{
_ccid_descriptor *ccid_desc;
ccid_desc = get_ccid_descriptor(reader_index);
if (ccid_desc->sIFD_serial_number)
{
strlcpy((char *)Value, ccid_desc->sIFD_serial_number, *Length);
*Length = strlen((char *)Value)+1;
}
else
{
/* not supported */
*Length = 0;
}
}
break;
#if !defined(TWIN_SERIAL)
case SCARD_ATTR_CHANNEL_ID:
{
*Length = sizeof(uint32_t);
if (Value) {
uint32_t bus = get_ccid_usb_bus_number(reader_index);
uint32_t addr = get_ccid_usb_device_address(reader_index);
*(uint32_t *)Value = ((uint32_t)0x0020 << 16) | bus << 8 | addr;
}
}
break;
#endif
default:
return_value = IFD_ERROR_TAG;
}
return return_value;
} /* IFDHGetCapabilities */
EXTERNAL RESPONSECODE IFDHSetCapabilities(DWORD Lun, DWORD Tag,
/*@unused@*/ DWORD Length, /*@unused@*/ PUCHAR Value)
{
/*
* This function should set the slot/card capabilities for a
* particular slot/card specified by Lun. Again, if you have only 1
* card slot and don't mind loading a new driver for each reader then
* ignore Lun.
*
* Tag - the tag for the information needing set
*
* Length - the length of the returned data Value - the value of the
* data
*
* returns:
*
* IFD_SUCCESS IFD_ERROR_TAG IFD_ERROR_SET_FAILURE
* IFD_ERROR_VALUE_READ_ONLY
*/
RESPONSECODE return_value = IFD_SUCCESS;
(void)Length;
(void)Value;
int reader_index;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO4("tag: 0x" DWORD_X ", %s (lun: " DWORD_X ")", Tag,
CcidSlots[reader_index].readerName, Lun);
switch (Tag)
{
#ifdef TAG_IFD_DEVICE_REMOVED
case TAG_IFD_DEVICE_REMOVED:
if ((1 == Length) && (Value != NULL) && (Value[0] != 0))
DisconnectPort(reader_index);
break;
#endif
default:
return_value = IFD_ERROR_TAG;
}
return return_value;
} /* IFDHSetCapabilities */
EXTERNAL RESPONSECODE IFDHSetProtocolParameters(DWORD Lun, DWORD Protocol,
UCHAR Flags, UCHAR PTS1, UCHAR PTS2, UCHAR PTS3)
{
/*
* This function should set the PTS of a particular card/slot using
* the three PTS parameters sent
*
* Protocol - SCARD_PROTOCOL_T0 or SCARD_PROTOCOL_T1
* Flags - Logical OR of possible values:
* IFD_NEGOTIATE_PTS1
* IFD_NEGOTIATE_PTS2
* IFD_NEGOTIATE_PTS3
* to determine which PTS values to negotiate.
* PTS1,PTS2,PTS3 - PTS Values.
*
* returns:
* IFD_SUCCESS
* IFD_ERROR_PTS_FAILURE
* IFD_COMMUNICATION_ERROR
* IFD_PROTOCOL_NOT_SUPPORTED
*/
BYTE pps[PPS_MAX_LENGTH];
ATR_t atr;
unsigned int len;
int convention;
int reader_index;
int atr_ret;
/* Set ccid desc params */
CcidDesc *ccid_slot;
_ccid_descriptor *ccid_desc;
if (-1 == (reader_index = LunToReaderIndex(Lun)))
return IFD_COMMUNICATION_ERROR;
DEBUG_INFO4("protocol T=" DWORD_D ", %s (lun: " DWORD_X ")",
Protocol-SCARD_PROTOCOL_T0, CcidSlots[reader_index].readerName, Lun);
/* Set to zero buffer */
memset(pps, 0, sizeof(pps));
memset(&atr, 0, sizeof(atr));
/* Get ccid params */
ccid_slot = get_ccid_slot(reader_index);
ccid_desc = get_ccid_descriptor(reader_index);
/* check the protocol is supported by the reader */
if (!(Protocol & ccid_desc->dwProtocols))
{
DEBUG_CRITICAL2("Protocol T=" DWORD_D " not supported by reader",
Protocol - SCARD_PROTOCOL_T0);
return IFD_ERROR_NOT_SUPPORTED;
}
/* Get ATR of the card */
atr_ret = ATR_InitFromArray(&atr, ccid_slot->pcATRBuffer,
ccid_slot->nATRLength);
if (ATR_MALFORMED == atr_ret)
return IFD_PROTOCOL_NOT_SUPPORTED;
if (SCARD_PROTOCOL_T0 == Protocol)
pps[1] |= ATR_PROTOCOL_TYPE_T0;
else
if (SCARD_PROTOCOL_T1 == Protocol)
pps[1] |= ATR_PROTOCOL_TYPE_T1;
else
return IFD_PROTOCOL_NOT_SUPPORTED;
/* TA2 present -> specific mode */
if (atr.ib[1][ATR_INTERFACE_BYTE_TA].present)
{
if (pps[1] != (atr.ib[1][ATR_INTERFACE_BYTE_TA].value & 0x0F))
{
/* wrong protocol */
DEBUG_COMM3("Specific mode in T=%d and T=%d requested",
atr.ib[1][ATR_INTERFACE_BYTE_TA].value & 0x0F, pps[1]);
return IFD_PROTOCOL_NOT_SUPPORTED;
}
}
/* TCi (i>2) indicates CRC instead of LRC */
if (SCARD_PROTOCOL_T1 == Protocol)
{
t1_state_t *t1 = &(ccid_slot -> t1);
int i;
/* TCi (i>2) present? */
for (i=2; i<ATR_MAX_PROTOCOLS; i++)
if (atr.ib[i][ATR_INTERFACE_BYTE_TC].present)
{
if (0 == atr.ib[i][ATR_INTERFACE_BYTE_TC].value)
{
DEBUG_COMM("Use LRC");
(void)t1_set_param(t1, IFD_PROTOCOL_T1_CHECKSUM_LRC, 0);
}
else
if (1 == atr.ib[i][ATR_INTERFACE_BYTE_TC].value)
{
DEBUG_COMM("Use CRC");
(void)t1_set_param(t1, IFD_PROTOCOL_T1_CHECKSUM_CRC, 0);
}
else
DEBUG_COMM2("Wrong value for TCi: %d",
atr.ib[i][ATR_INTERFACE_BYTE_TC].value);
/* only the first TCi (i>2) must be used */
break;
}
}
/* Do not send CCID command SetParameters or PPS to the CCID
* The CCID will do this himself */
if (ccid_desc->dwFeatures & CCID_CLASS_AUTO_PPS_PROP)
{
DEBUG_COMM2("Timeout: %d ms", ccid_desc->readTimeout);
goto end;
}
/* PTS1? */
if (Flags & IFD_NEGOTIATE_PTS1)
{
/* just use the value passed in argument */
pps[1] |= 0x10; /* PTS1 presence */
pps[2] = PTS1;
}
else
{
/* TA1 present */
if (atr.ib[0][ATR_INTERFACE_BYTE_TA].present)
{
unsigned int card_baudrate;
unsigned int default_baudrate;
double f, d;
(void)ATR_GetParameter(&atr, ATR_PARAMETER_D, &d);
(void)ATR_GetParameter(&atr, ATR_PARAMETER_F, &f);
/* may happen with non ISO cards */
if ((0 == f) || (0 == d))
{
/* values for TA1=11 */
f = 372;
d = 1;
}
/* Baudrate = f x D/F */
card_baudrate = (unsigned int) (1000 * ccid_desc->dwDefaultClock
* d / f);
default_baudrate = (unsigned int) (1000 * ccid_desc->dwDefaultClock
* ATR_DEFAULT_D / ATR_DEFAULT_F);
/* if the card does not try to lower the default speed */
if ((card_baudrate > default_baudrate)
/* and the reader is fast enough */
&& (card_baudrate <= ccid_desc->dwMaxDataRate))
{
/* the reader has no baud rates table */
if ((NULL == ccid_desc->arrayOfSupportedDataRates)
/* or explicitely support it */
|| find_baud_rate(card_baudrate,
ccid_desc->arrayOfSupportedDataRates))
{
pps[1] |= 0x10; /* PTS1 presence */
pps[2] = atr.ib[0][ATR_INTERFACE_BYTE_TA].value;
DEBUG_COMM2("Set speed to %d bauds", card_baudrate);
}
else
{
DEBUG_COMM2("Reader does not support %d bauds",
card_baudrate);
/* TA2 present -> specific mode: the card is supporting
* only the baud rate specified in TA1 but reader does not
* support this value. Reject the card. */
if (atr.ib[1][ATR_INTERFACE_BYTE_TA].present)
return IFD_COMMUNICATION_ERROR;
}
}
else
{
/* the card is too fast for the reader */
if ((card_baudrate > ccid_desc->dwMaxDataRate +2)
/* but TA1 <= 97 */
&& (atr.ib[0][ATR_INTERFACE_BYTE_TA].value <= 0x97))
{
unsigned char old_TA1;
old_TA1 = atr.ib[0][ATR_INTERFACE_BYTE_TA].value;
while (atr.ib[0][ATR_INTERFACE_BYTE_TA].value > 0x94)
{
/* use a lower TA1 */
atr.ib[0][ATR_INTERFACE_BYTE_TA].value--;
(void)ATR_GetParameter(&atr, ATR_PARAMETER_D, &d);
(void)ATR_GetParameter(&atr, ATR_PARAMETER_F, &f);
/* Baudrate = f x D/F */
card_baudrate = (unsigned int) (1000 *
ccid_desc->dwDefaultClock * d / f);
/* the reader has a baud rate table */
if ((ccid_desc->arrayOfSupportedDataRates
/* and the baud rate is supported */
&& find_baud_rate(card_baudrate,
ccid_desc->arrayOfSupportedDataRates))
/* or the reader has NO baud rate table */
|| ((NULL == ccid_desc->arrayOfSupportedDataRates)
/* and the baud rate is bellow the limit */
&& (card_baudrate <= ccid_desc->dwMaxDataRate)))
{
pps[1] |= 0x10; /* PTS1 presence */
pps[2] = atr.ib[0][ATR_INTERFACE_BYTE_TA].value;
DEBUG_COMM2("Set adapted speed to %d bauds",
card_baudrate);
break;
}
}
/* restore original TA1 value */
atr.ib[0][ATR_INTERFACE_BYTE_TA].value = old_TA1;
}
}
}
}
/* PTS2? */
if (Flags & IFD_NEGOTIATE_PTS2)
{
pps[1] |= 0x20; /* PTS2 presence */
pps[3] = PTS2;
}
/* PTS3? */
if (Flags & IFD_NEGOTIATE_PTS3)
{
pps[1] |= 0x40; /* PTS3 presence */
pps[4] = PTS3;
}
/* Generate PPS */
pps[0] = 0xFF;
/* Automatic PPS made by the ICC? */
if ((! (ccid_desc->dwFeatures & CCID_CLASS_AUTO_PPS_CUR))
/* TA2 absent: negociable mode */
&& (! atr.ib[1][ATR_INTERFACE_BYTE_TA].present))
{
int default_protocol;
ATR_GetDefaultProtocol(&atr, &default_protocol, NULL);
/* if the requested protocol is not the default one
* or a TA1/PPS1 is present */
if (((pps[1] & 0x0F) != default_protocol) || (PPS_HAS_PPS1(pps)))
{
#ifdef O2MICRO_OZ776_PATCH
if ((OZ776 == ccid_desc->readerID)
|| (OZ776_7772 == ccid_desc->readerID))
{
/* convert from ATR_PROTOCOL_TYPE_T? to SCARD_PROTOCOL_T? */
Protocol = default_protocol +
(SCARD_PROTOCOL_T0 - ATR_PROTOCOL_TYPE_T0);
DEBUG_INFO2("PPS not supported on O2Micro readers. Using T=" DWORD_D,
Protocol - SCARD_PROTOCOL_T0);
}
else
#endif
if (PPS_Exchange(reader_index, pps, &len, &pps[2]) != PPS_OK)
{
DEBUG_INFO1("PPS_Exchange Failed");
return IFD_ERROR_PTS_FAILURE;
}
}
}
/* Now we must set the reader parameters */
if (ATR_MALFORMED == ATR_GetConvention(&atr, &convention))
return IFD_COMMUNICATION_ERROR;
/* specific mode and implicit parameters? (b5 of TA2) */
if (atr.ib[1][ATR_INTERFACE_BYTE_TA].present
&& (atr.ib[1][ATR_INTERFACE_BYTE_TA].value & 0x10))
return IFD_COMMUNICATION_ERROR;
/* T=1 */
if (SCARD_PROTOCOL_T1 == Protocol)
{
BYTE param[] = {
0x11, /* Fi/Di */
0x10, /* TCCKS */
0x00, /* GuardTime */
0x4D, /* BWI/CWI */
0x00, /* ClockStop */
0x20, /* IFSC */