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178 lines
6.5 KiB
C
178 lines
6.5 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) Jonathan Westhues, Nov 2006
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// Copyright (C) Gerhard de Koning Gans - May 2008
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// See LICENSE.txt for the text of the license.
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//-----------------------------------------------------------------------------
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// Routines to support ISO 14443 type A.
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//-----------------------------------------------------------------------------
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#ifndef __ISO14443A_H
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#define __ISO14443A_H
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#include "common.h"
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#include "mifare.h" // struct
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#include "pm3_cmd.h"
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#include "crc16.h" // compute_crc
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// When the PM acts as tag and is receiving it takes
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// 2 ticks delay in the RF part (for the first falling edge),
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// 3 ticks for the A/D conversion,
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// 8 ticks on average until the start of the SSC transfer,
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// 8 ticks until the SSC samples the first data
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// 7*16 ticks to complete the transfer from FPGA to ARM
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// 8 ticks until the next ssp_clk rising edge
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// 4*16 ticks until we measure the time
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// - 8*16 ticks because we measure the time of the previous transfer
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#define DELAY_AIR2ARM_AS_TAG (2 + 3 + 8 + 8 + 7*16 + 8 + 4*16 - 8*16)
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typedef struct {
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enum {
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DEMOD_14A_UNSYNCD,
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// DEMOD_14A_HALF_SYNCD,
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// DEMOD_14A_MOD_FIRST_HALF,
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// DEMOD_14A_NOMOD_FIRST_HALF,
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DEMOD_14A_MANCHESTER_DATA
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} state;
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uint16_t twoBits;
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uint16_t highCnt;
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uint16_t bitCount;
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uint16_t collisionPos;
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uint16_t syncBit;
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uint8_t parityBits;
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uint8_t parityLen;
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uint16_t shiftReg;
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uint16_t samples;
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uint16_t len;
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uint32_t startTime, endTime;
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uint8_t *output;
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uint8_t *parity;
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} tDemod14a;
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/*
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typedef enum {
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MOD_NOMOD = 0,
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MOD_SECOND_HALF,
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MOD_FIRST_HALF,
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MOD_BOTH_HALVES
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} Modulation_t;
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*/
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typedef struct {
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enum {
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STATE_14A_UNSYNCD,
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STATE_14A_START_OF_COMMUNICATION,
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STATE_14A_MILLER_X,
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STATE_14A_MILLER_Y,
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STATE_14A_MILLER_Z,
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// DROP_NONE,
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// DROP_FIRST_HALF,
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} state;
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uint16_t shiftReg;
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int16_t bitCount;
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uint16_t len;
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//uint16_t byteCntMax;
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uint16_t posCnt;
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uint16_t syncBit;
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uint8_t parityBits;
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uint8_t parityLen;
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uint32_t fourBits;
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uint32_t startTime, endTime;
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uint8_t *output;
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uint8_t *parity;
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} tUart14a;
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// indices into responses array:
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typedef enum {
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RESP_INDEX_ATQA,
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RESP_INDEX_UIDC1,
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RESP_INDEX_UIDC2,
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RESP_INDEX_UIDC3,
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RESP_INDEX_SAKC1,
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RESP_INDEX_SAKC2,
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RESP_INDEX_SAKC3,
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RESP_INDEX_RATS,
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RESP_INDEX_VERSION,
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RESP_INDEX_SIGNATURE,
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RESP_INDEX_PPS
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} resp_index_t;
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#ifndef AddCrc14A
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# define AddCrc14A(data, len) compute_crc(CRC_14443_A, (data), (len), (data)+(len), (data)+(len)+1)
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#endif
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#ifndef AddCrc14B
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# define AddCrc14B(data, len) compute_crc(CRC_14443_B, (data), (len), (data)+(len), (data)+(len)+1)
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#endif
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#ifndef CheckCrc14A
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# define CheckCrc14A(data, len) check_crc(CRC_14443_A, (data), (len))
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#endif
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void printHf14aConfig(void);
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void setHf14aConfig(hf14a_config *hc);
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hf14a_config *getHf14aConfig(void);
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void iso14a_set_timeout(uint32_t timeout);
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uint32_t iso14a_get_timeout(void);
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void GetParity(const uint8_t *pbtCmd, uint16_t len, uint8_t *par);
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tDemod14a *GetDemod14a(void);
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void Demod14aReset(void);
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void Demod14aInit(uint8_t *data, uint8_t *par);
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tUart14a *GetUart14a(void);
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void Uart14aReset(void);
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void Uart14aInit(uint8_t *data, uint8_t *par);
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RAMFUNC bool MillerDecoding(uint8_t bit, uint32_t non_real_time);
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RAMFUNC int ManchesterDecoding(uint8_t bit, uint16_t offset, uint32_t non_real_time);
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void RAMFUNC SniffIso14443a(uint8_t param);
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void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data, uint8_t exitAfterNReads);
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bool SimulateIso14443aInit(int tagType, int flags, uint8_t *data, tag_response_info_t **responses, uint32_t *cuid, uint32_t counters[3], uint8_t tearings[3], uint8_t *pages);
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bool GetIso14443aCommandFromReader(uint8_t *received, uint8_t *par, int *len);
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void iso14443a_antifuzz(uint32_t flags);
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void ReaderIso14443a(PacketCommandNG *c);
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void ReaderTransmit(uint8_t *frame, uint16_t len, uint32_t *timing);
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void ReaderTransmitBitsPar(uint8_t *frame, uint16_t bits, uint8_t *par, uint32_t *timing);
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void ReaderTransmitPar(uint8_t *frame, uint16_t len, uint8_t *par, uint32_t *timing);
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int ReaderReceive(uint8_t *receivedAnswer, uint8_t *par);
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void iso14443a_setup(uint8_t fpga_minor_mode);
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int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, bool send_chaining, void *data, uint8_t *res);
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int iso14443a_select_card(uint8_t *uid_ptr, iso14a_card_select_t *p_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades, bool no_rats);
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int iso14443a_select_cardEx(uint8_t *uid_ptr, iso14a_card_select_t *p_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades, bool no_rats, bool use_ecp, bool use_magsafe);
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int iso14443a_fast_select_card(uint8_t *uid_ptr, uint8_t num_cascades);
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void iso14a_set_trigger(bool enable);
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int EmSendCmd14443aRaw(const uint8_t *resp, uint16_t respLen);
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int EmSend4bit(uint8_t resp);
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int EmSendCmd(uint8_t *resp, uint16_t respLen);
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int EmSendCmdEx(uint8_t *resp, uint16_t respLen, bool collision);
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int EmGetCmd(uint8_t *received, uint16_t *len, uint8_t *par);
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int EmSendCmdPar(uint8_t *resp, uint16_t respLen, uint8_t *par);
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int EmSendCmdParEx(uint8_t *resp, uint16_t respLen, uint8_t *par, bool collision);
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int EmSendPrecompiledCmd(tag_response_info_t *p_response);
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bool prepare_allocated_tag_modulation(tag_response_info_t *response_info, uint8_t **buffer, size_t *max_buffer_size);
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bool prepare_tag_modulation(tag_response_info_t *response_info, size_t max_buffer_size);
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bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_StartTime, uint32_t reader_EndTime, uint8_t *reader_Parity,
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uint8_t *tag_data, uint16_t tag_len, uint32_t tag_StartTime, uint32_t tag_EndTime, uint8_t *tag_Parity);
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void ReaderMifare(bool first_try, uint8_t block, uint8_t keytype);
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void DetectNACKbug(void);
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bool GetIso14443aAnswerFromTag_Thinfilm(uint8_t *receivedResponse, uint8_t *received_len);
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#endif /* __ISO14443A_H */
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