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Improvements/Fixes to 14443 sniffing/snooping
[proxmark3-svn] / armsrc / iso14443a.h
1 //-----------------------------------------------------------------------------
2 // Merlok - June 2011
3 // Gerhard de Koning Gans - May 2008
4 // Hagen Fritsch - June 2010
5 //
6 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
7 // at your option, any later version. See the LICENSE.txt file for the text of
8 // the license.
9 //-----------------------------------------------------------------------------
10 // Routines to support ISO 14443 type A.
11 //-----------------------------------------------------------------------------
12
13 #ifndef __ISO14443A_H
14 #define __ISO14443A_H
15 #include "common.h"
16 #include "mifaresniff.h"
17
18 // mifare reader over DMA buffer (SnoopIso14443a())!!!
19 #define MIFARE_BUFF_OFFSET 3560 // \/ \/ \/
20 // card emulator memory
21 #define EML_RESPONSES 4000
22 #define CARD_MEMORY 6000
23 #define CARD_MEMORY_LEN 4096
24
25 typedef struct {
26 enum {
27 DEMOD_UNSYNCD,
28 // DEMOD_HALF_SYNCD,
29 // DEMOD_MOD_FIRST_HALF,
30 // DEMOD_NOMOD_FIRST_HALF,
31 DEMOD_MANCHESTER_DATA
32 } state;
33 uint16_t twoBits;
34 uint16_t highCnt;
35 uint16_t bitCount;
36 uint16_t collisionPos;
37 uint16_t syncBit;
38 uint32_t parityBits;
39 uint16_t shiftReg;
40 uint16_t samples;
41 uint16_t len;
42 uint32_t startTime, endTime;
43 uint8_t *output;
44 } tDemod;
45
46 typedef enum {
47 MOD_NOMOD = 0,
48 MOD_SECOND_HALF,
49 MOD_FIRST_HALF,
50 MOD_BOTH_HALVES
51 } Modulation_t;
52
53 typedef struct {
54 enum {
55 STATE_UNSYNCD,
56 STATE_START_OF_COMMUNICATION,
57 STATE_MILLER_X,
58 STATE_MILLER_Y,
59 STATE_MILLER_Z,
60 // DROP_NONE,
61 // DROP_FIRST_HALF,
62 } state;
63 uint16_t shiftReg;
64 uint16_t bitCount;
65 uint16_t len;
66 uint16_t byteCntMax;
67 uint16_t posCnt;
68 uint16_t syncBit;
69 uint32_t parityBits;
70 uint16_t highCnt;
71 uint16_t twoBits;
72 uint32_t startTime, endTime;
73 uint8_t *output;
74 } tUart;
75
76
77
78 extern byte_t oddparity (const byte_t bt);
79 extern uint32_t GetParity(const uint8_t *pbtCmd, int iLen);
80 extern void AppendCrc14443a(uint8_t *data, int len);
81
82 extern void ReaderTransmit(uint8_t *frame, int len, uint32_t *timing);
83 extern void ReaderTransmitBitsPar(uint8_t *frame, int bits, uint32_t par, uint32_t *timing);
84 extern void ReaderTransmitPar(uint8_t *frame, int len, uint32_t par, uint32_t *timing);
85 extern int ReaderReceive(uint8_t *receivedAnswer);
86 extern int ReaderReceivePar(uint8_t *receivedAnswer, uint32_t *parptr);
87
88 extern void iso14443a_setup(uint8_t fpga_minor_mode);
89 extern int iso14_apdu(uint8_t *cmd, size_t cmd_len, void *data);
90 extern int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *resp_data, uint32_t *cuid_ptr);
91 extern void iso14a_set_trigger(bool enable);
92 extern void iso14a_set_timeout(uint32_t timeout);
93
94 extern void iso14a_clear_tracelen();
95 extern void iso14a_set_tracing(bool enable);
96
97 #endif /* __ISO14443A_H */
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