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90 lines
3.6 KiB
C
90 lines
3.6 KiB
C
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//-----------------------------------------------------------------------------
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// Peter Fillmore 2014
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// code derived off merloks mifare code
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//
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// code for work with EMV cards.
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//-----------------------------------------------------------------------------
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#ifndef __EMVUTIL_H
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#define __EMVUTIL_H
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#include <stdarg.h>
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#include <stdint.h>
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#include "iso14443a.h"
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#include "tlv.h"
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#include "emvtags.h"
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#include "emvdataels.h"
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// mifare 4bit card answers
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// reader voltage field detector
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#define EMV_MINFIELDV 4000
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// debug
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// 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode
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#define EMV_DBG_NONE 0
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#define EMV_DBG_ERROR 1
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#define EMV_DBG_ALL 2
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#define EMV_DBG_EXTENDED 4
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extern int EMV_DBGLEVEL;
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//EMV emulator states need to update
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#define EMVEMUL_NOFIELD 0
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#define EMVEMUL_IDLE 1
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#define EMVEMUL_SELECT1 2
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#define EMVEMUL_SELECT2 3
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#define EMVEMUL_SELECT3 4
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#define EMVEMUL_AUTH1 5
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#define EMVEMUL_AUTH2 6
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#define EMVEMUL_WORK 7
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#define EMVEMUL_HALTED 8
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#define EMVEMUL_ACK 9
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//#define cardSTATE_TO_IDLE() cardSTATE = EMVEMUL_IDLE; LED_B_OFF(); LED_C_OFF();
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//grabbed from iso14443a.c
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//static int EmGetCmd(uint8_t *received, int *len);
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//int EmSendCmdEx(uint8_t *resp, size_t respLen, bool correctionNeeded);//tag types
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//int EmSendCmd(uint8_t *resp, size_t respLen);
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//#define cardSTATE_TO_IDLE() cardSTATE = MFEMUL_IDLE; LED_B_OFF(); LED_C_OFF();
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//extern int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data);
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//functions
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//int emv_sendapdu( uint8_t cla, uint8_t ins, uint8_t p1, uint8_t p2, uint8_t lc, uint8_t* data, uint8_t le);
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int emv_select(uint8_t* AID, uint8_t AID_len, void* data);
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int emv_selectPPSE();
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int emv_readrecord(uint8_t recordnumber, uint8_t sfi, void* data);
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int emv_getprocessingoptions(uint8_t* pdol, uint8_t pdol_len, void* data
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);
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int emv_computecryptogram(uint8_t* UDOL, uint8_t UDOL_len, void *data);
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//return 8 8byte ICC random number.
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int emv_getchallenge(void *data);
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int emv_loopback(uint8_t* transData , uint8_t transData_len, void *data);
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int emv_generateAC(uint8_t refcontrolparam, uint8_t* cdolinput, uint8_t cdolinputlen, void* data);
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int emv_decodeAFL(uint8_t* AFL, uint8_t AFLlen);
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int emv_decodeAIP(uint8_t* AIP);
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int emv_decodeCVM(uint8_t* CVM, uint8_t CVMlen);
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//memory management
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//uint8_t* emv_get_bigbufptr(void);
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//uint8_t* emv_get_bigbufptr_sendbuf(void);
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//uint8_t* emv_get_bigbufptr_recbuf(void);
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//emulator
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//void EMVsim();
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//utils
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int emv_printtag(uint8_t* selected_tag,emvtags* inputcard, uint8_t* outputstring, uint8_t* outputlen);
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int emv_decode_field(uint8_t* inputfield,uint16_t inputlength, emvtags *result);
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int emv_emvtags_decode_tag(tlvtag* inputtag, emvtags* currentcard);
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//look up a tag in the current structure
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int emv_lookuptag(uint8_t* tag, emvtags* currentcard, uint8_t* outputval, uint8_t* outputvallen);
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//set a tag from external impurt
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int emv_settag(uint32_t tag, uint8_t *datain, emvtags *currentcard) ;
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void dumpCard(emvtags* currentcard);
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//generate a valid PDOL list from the returned card value, used in get processing options
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int emv_generateDOL(uint8_t* DOL, uint8_t DOLlen,emvtags* currentcard, uint8_t* DOLoutput, uint8_t* DOLoutputlen);
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int emv_generatetemplate(uint8_t* templateval,emvtags* currentcard, uint8_t* returnedval, uint8_t* returnedlen, uint8_t numtags, ...);
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#endif
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