X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d9de20fa4bb0a36052927b55c4185caa204c5c4d..7361a18f7a24a7b0dd6e76919ef389202543cdc5:/armsrc/iso15693.c diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c index f6868297..e3524375 100644 --- a/armsrc/iso15693.c +++ b/armsrc/iso15693.c @@ -60,6 +60,7 @@ #include "protocols.h" #include "cmd.h" #include "BigBuf.h" +#include "fpgaloader.h" #define arraylen(x) (sizeof(x)/sizeof((x)[0])) @@ -79,11 +80,14 @@ static int DEBUG = 0; #define ISO15693_MAX_RESPONSE_LENGTH 36 // allows read single block with the maximum block size of 256bits. Read multiple blocks not supported yet #define ISO15693_MAX_COMMAND_LENGTH 45 // allows write single block with the maximum block size of 256bits. Write multiple blocks not supported yet -// timing. Delays in SSP_CLK ticks. -#define DELAY_READER_TO_ARM 8 -#define DELAY_ARM_TO_READER 1 -#define DELAY_ISO15693_VCD_TO_VICC 132 // 132/423.75kHz = 311.5us from end of EOF to start of tag response -#define DELAY_ISO15693_VICC_TO_VCD 1017 // 1017/3.39MHz = 300us between end of tag response and next reader command +// timing. Delays in SSP_CLK ticks. +// SSP_CLK runs at 13,56MHz / 32 = 423.75kHz when simulating a tag +#define DELAY_READER_TO_ARM_SIM 8 +#define DELAY_ARM_TO_READER_SIM 1 +#define DELAY_ISO15693_VCD_TO_VICC_SIM 132 // 132/423.75kHz = 311.5us from end of command EOF to start of tag response +//SSP_CLK runs at 13.56MHz / 4 = 3,39MHz when acting as reader +#define DELAY_ISO15693_VCD_TO_VICC_READER 1056 // 1056/3,39MHz = 311.5us from end of command EOF to start of tag response +#define DELAY_ISO15693_VICC_TO_VCD_READER 1017 // 1017/3.39MHz = 300us between end of tag response and next reader command // --------------------------- // Signal Processing @@ -268,22 +272,28 @@ static void CodeIso15693AsTag(uint8_t *cmd, int n) // Transmit the command (to the tag) that was placed in cmd[]. static void TransmitTo15693Tag(const uint8_t *cmd, int len, uint32_t start_time) { - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_TX); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_MODE_SEND_FULL_MOD); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); - while (GetCountSspClk() < start_time); + while (GetCountSspClk() < start_time) ; LED_B_ON(); - for(int c = 0; c < len; ) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { - AT91C_BASE_SSC->SSC_THR = ~cmd[c]; - c++; - } - WDT_HIT(); - } + for(int c = 0; c < len; c++) { + uint8_t data = cmd[c]; + for (int i = 0; i < 8; i++) { + uint16_t send_word = (data & 0x80) ? 0x0000 : 0xffff; + while (!(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY))) ; + AT91C_BASE_SSC->SSC_THR = send_word; + while (!(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY))) ; + AT91C_BASE_SSC->SSC_THR = send_word; + data <<= 1; + } + WDT_HIT(); + } LED_B_OFF(); } + //----------------------------------------------------------------------------- // Transmit the tag response (to the reader) that was placed in cmd[]. //----------------------------------------------------------------------------- @@ -339,7 +349,7 @@ static void TransmitTo15693Reader(const uint8_t *cmd, size_t len, uint32_t start // false if we are still waiting for some more //============================================================================= -#define NOISE_THRESHOLD 30 // don't try to correlate noise +#define NOISE_THRESHOLD 160 // don't try to correlate noise typedef struct DecodeTag { enum { @@ -561,10 +571,10 @@ static int GetIso15693AnswerFromTag(uint8_t* response, uint16_t max_len, int tim while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY)); // And put the FPGA in the appropriate mode - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_AMPLITUDE); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_SUBCARRIER_424_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE); // Setup and start DMA. - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); FpgaSetupSscDma((uint8_t*) dmaBuf, ISO15693_DMA_BUFFER_SIZE); uint16_t *upTo = dmaBuf; @@ -926,7 +936,7 @@ static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint3 for (int i = 7; i >= 0; i--) { if (Handle15693SampleFromReader((b >> i) & 0x01, &DecodeReader)) { - *eof_time = bit_time + samples - DELAY_READER_TO_ARM; // end of EOF + *eof_time = bit_time + samples - DELAY_READER_TO_ARM_SIM; // end of EOF gotFrame = true; break; } @@ -953,7 +963,7 @@ static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint3 samples, gotFrame, DecodeReader.state, DecodeReader.byteCount, DecodeReader.bitCount, DecodeReader.posCount); if (DecodeReader.byteCount > 0) { - LogTrace(DecodeReader.output, DecodeReader.byteCount, 0, 0, NULL, true); + LogTrace(DecodeReader.output, DecodeReader.byteCount, 0, *eof_time, NULL, true); } return DecodeReader.byteCount; @@ -996,34 +1006,23 @@ void AcquireRawAdcSamplesIso15693(void) uint8_t *dest = BigBuf_get_addr(); FpgaDownloadAndGo(FPGA_BITSTREAM_HF); - BuildIdentifyRequest(); - + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + BuildIdentifyRequest(); + // Give the tags time to energize LED_D_ON(); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); SpinDelay(100); // Now send the command - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_TX); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX); - - LED_B_ON(); - for(int c = 0; c < ToSendMax; ) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { - AT91C_BASE_SSC->SSC_THR = ~ToSend[c]; - c++; - } - WDT_HIT(); - } - LED_B_OFF(); + TransmitTo15693Tag(ToSend, ToSendMax, 0); // wait for last transfer to complete - while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY)); + while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY)) ; - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_AMPLITUDE); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_SUBCARRIER_424_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE); for(int c = 0; c < 4000; ) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { @@ -1039,13 +1038,13 @@ void AcquireRawAdcSamplesIso15693(void) void SnoopIso15693(void) { + LED_A_ON(); FpgaDownloadAndGo(FPGA_BITSTREAM_HF); BigBuf_free(); clear_trace(); set_tracing(true); - // The DMA buffer, used to stream samples from the FPGA uint16_t* dmaBuf = (uint16_t*)BigBuf_malloc(ISO15693_DMA_BUFFER_SIZE*sizeof(uint16_t)); uint16_t *upTo; @@ -1070,16 +1069,13 @@ void SnoopIso15693(void) Dbprintf(" tag -> Reader: %i bytes", ISO15693_MAX_RESPONSE_LENGTH); Dbprintf(" DMA: %i bytes", ISO15693_DMA_BUFFER_SIZE * sizeof(uint16_t)); } - Dbprintf("Snoop started. Press button to stop."); + Dbprintf("Snoop started. Press PM3 Button to stop."); - // Signal field is off, no reader signal, no tag signal - LEDsoff(); - // And put the FPGA in the appropriate mode - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_SNOOP | FPGA_HF_READER_RX_XCORR_AMPLITUDE); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_MODE_SNOOP_AMPLITUDE); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); // Setup for the DMA. - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); upTo = dmaBuf; FpgaSetupSscDma((uint8_t*) dmaBuf, ISO15693_DMA_BUFFER_SIZE); @@ -1174,7 +1170,6 @@ void SnoopIso15693(void) // Initialize the proxmark as iso15k reader -// (this might produces glitches that confuse some tags static void Iso15693InitReader() { FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // Setup SSC @@ -1186,11 +1181,11 @@ static void Iso15693InitReader() { SpinDelay(10); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); // Give the tags time to energize LED_D_ON(); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER); SpinDelay(250); } @@ -1285,7 +1280,7 @@ int SendDataTag(uint8_t *send, int sendlen, bool init, int speed, uint8_t *recv, // Now wait for a response if (recv != NULL) { - answerLen = GetIso15693AnswerFromTag(recv, max_recv_len, DELAY_ISO15693_VCD_TO_VICC * 2); + answerLen = GetIso15693AnswerFromTag(recv, max_recv_len, DELAY_ISO15693_VCD_TO_VICC_READER * 2); } LED_A_OFF(); @@ -1369,10 +1364,10 @@ void SetDebugIso15693(uint32_t debug) { } -//----------------------------------------------------------------------------- -// Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector +//--------------------------------------------------------------------------------------- +// Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector. // all demodulation performed in arm rather than host. - greg -//----------------------------------------------------------------------------- +//--------------------------------------------------------------------------------------- void ReaderIso15693(uint32_t parameter) { LEDsoff(); @@ -1389,7 +1384,7 @@ void ReaderIso15693(uint32_t parameter) SetAdcMuxFor(GPIO_MUXSEL_HIPKD); // Setup SSC - FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER); // Start from off (no field generated) FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); @@ -1397,7 +1392,7 @@ void ReaderIso15693(uint32_t parameter) // Give the tags time to energize LED_D_ON(); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER); SpinDelay(200); StartCountSspClk(); @@ -1408,10 +1403,10 @@ void ReaderIso15693(uint32_t parameter) // Now send the IDENTIFY command BuildIdentifyRequest(); TransmitTo15693Tag(ToSend, ToSendMax, 0); - + // Now wait for a response - answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC * 2) ; - uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD; + answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC_READER * 2) ; + uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER; if (answerLen >=12) // we should do a better check than this { @@ -1447,22 +1442,17 @@ void ReaderIso15693(uint32_t parameter) // read all pages if (answerLen >= 12 && DEBUG) { - - // debugptr = BigBuf_get_addr(); - - int i = 0; - while (i < 32) { // sanity check, assume max 32 pages + for (int i = 0; i < 32; i++) { // sanity check, assume max 32 pages BuildReadBlockRequest(TagUID, i); TransmitTo15693Tag(ToSend, ToSendMax, start_time); - int answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC * 2); - start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD; + int answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC_READER * 2); + start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER; if (answerLen > 0) { Dbprintf("READ SINGLE BLOCK %d returned %d octets:", i, answerLen); DbdecodeIso15693Answer(answerLen, answer); Dbhexdump(answerLen, answer, false); if ( *((uint32_t*) answer) == 0x07160101 ) break; // exit on NoPageErr } - i++; } } @@ -1502,7 +1492,7 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) if ((cmd_len >= 5) && (cmd[0] & ISO15693_REQ_INVENTORY) && (cmd[1] == ISO15693_INVENTORY)) { // TODO: check more flags bool slow = !(cmd[0] & ISO15693_REQ_DATARATE_HIGH); - start_time = eof_time + DELAY_ISO15693_VCD_TO_VICC - DELAY_ARM_TO_READER; + start_time = eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM - DELAY_ARM_TO_READER_SIM; TransmitTo15693Reader(ToSend, ToSendMax, start_time, slow); } @@ -1510,6 +1500,7 @@ void SimTagIso15693(uint32_t parameter, uint8_t *uid) Dbhexdump(cmd_len, cmd, false); } + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LEDsoff(); } @@ -1537,7 +1528,7 @@ void BruteforceIso15693Afi(uint32_t speed) data[2] = 0; // mask length datalen = AddCrc(data,3); recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), 0); - uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VCD_TO_VICC; + uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER; WDT_HIT(); if (recvlen>=12) { Dbprintf("NoAFI UID=%s", sprintUID(NULL, &recv[2])); @@ -1554,7 +1545,7 @@ void BruteforceIso15693Afi(uint32_t speed) data[2] = i & 0xFF; datalen = AddCrc(data,4); recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), start_time); - start_time = GetCountSspClk() + DELAY_ISO15693_VCD_TO_VICC; + start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER; WDT_HIT(); if (recvlen >= 12) { Dbprintf("AFI=%i UID=%s", i, sprintUID(NULL, &recv[2])); @@ -1615,8 +1606,8 @@ static void __attribute__((unused)) BuildSysInfoRequest(uint8_t *uid) uint8_t cmd[12]; uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data + // If we set the Option_Flag in this request, the VICC will respond with the security status of the block + // followed by the block data // one sub-carrier, inventory, 1 slot, fast rate cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit // System Information command code @@ -1646,8 +1637,8 @@ static void __attribute__((unused)) BuildReadMultiBlockRequest(uint8_t *uid) uint8_t cmd[14]; uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data + // If we set the Option_Flag in this request, the VICC will respond with the security status of the block + // followed by the block data // one sub-carrier, inventory, 1 slot, fast rate cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit // READ Multi BLOCK command code @@ -1680,8 +1671,8 @@ static void __attribute__((unused)) BuildArbitraryRequest(uint8_t *uid,uint8_t C uint8_t cmd[14]; uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data + // If we set the Option_Flag in this request, the VICC will respond with the security status of the block + // followed by the block data // one sub-carrier, inventory, 1 slot, fast rate cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit // READ BLOCK command code @@ -1715,8 +1706,8 @@ static void __attribute__((unused)) BuildArbitraryCustomRequest(uint8_t uid[], u uint8_t cmd[14]; uint16_t crc; - // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block - // followed by teh block data + // If we set the Option_Flag in this request, the VICC will respond with the security status of the block + // followed by the block data // one sub-carrier, inventory, 1 slot, fast rate cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit // READ BLOCK command code @@ -1732,7 +1723,7 @@ static void __attribute__((unused)) BuildArbitraryCustomRequest(uint8_t uid[], u cmd[8] = 0x05; cmd[9]= 0xe0; // always e0 (not exactly unique) // Parameter - cmd[10] = 0x05; // for custom codes this must be manufcturer code + cmd[10] = 0x05; // for custom codes this must be manufacturer code cmd[11] = 0x00; // cmd[12] = 0x00;