X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9b82de75f4a74b2d7f149dc161f0d3a3fb1752fa..4888b2819574627efea9bd7d23444d785c5a2077:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index 0ff24bfd..ea9af7d4 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -71,14 +71,13 @@ static struct { int nOutOfCnt; int OutOfCnt; int syncBit; - int parityBits; int samples; int highCnt; int swapper; int counter; int bitBuffer; int dropPosition; - uint8_t *output; + uint8_t *output; } Uart; static RAMFUNC int OutOfNDecoding(int bit) @@ -137,11 +136,8 @@ static RAMFUNC int OutOfNDecoding(int bit) if(Uart.byteCnt == 0) { // Its not straightforward to show single EOFs // So just leave it and do not return TRUE - Uart.output[Uart.byteCnt] = 0xf0; + Uart.output[0] = 0xf0; Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits = 1; } else { return TRUE; @@ -223,11 +219,6 @@ static RAMFUNC int OutOfNDecoding(int bit) if(Uart.bitCnt == 8) { Uart.output[Uart.byteCnt] = (Uart.shiftReg & 0xff); Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits <<= 1; - Uart.parityBits ^= OddByteParity[(Uart.shiftReg & 0xff)]; - Uart.bitCnt = 0; Uart.shiftReg = 0; } @@ -246,11 +237,6 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.dropPosition--; Uart.output[Uart.byteCnt] = (Uart.dropPosition & 0xff); Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits <<= 1; - Uart.parityBits ^= OddByteParity[(Uart.dropPosition & 0xff)]; - Uart.bitCnt = 0; Uart.shiftReg = 0; Uart.nOutOfCnt = 0; @@ -311,7 +297,6 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.state = STATE_START_OF_COMMUNICATION; Uart.bitCnt = 0; Uart.byteCnt = 0; - Uart.parityBits = 0; Uart.nOutOfCnt = 0; Uart.OutOfCnt = 4; // Start at 1/4, could switch to 1/256 Uart.dropPosition = 0; @@ -353,7 +338,6 @@ static struct { int bitCount; int posCount; int syncBit; - int parityBits; uint16_t shiftReg; int buffer; int buffer2; @@ -367,7 +351,7 @@ static struct { SUB_SECOND_HALF, SUB_BOTH } sub; - uint8_t *output; + uint8_t *output; } Demod; static RAMFUNC int ManchesterDecoding(int v) @@ -420,7 +404,6 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.sub = SUB_FIRST_HALF; Demod.bitCount = 0; Demod.shiftReg = 0; - Demod.parityBits = 0; Demod.samples = 0; if(Demod.posCount) { //if(trigger) LED_A_OFF(); // Not useful in this case... @@ -450,7 +433,6 @@ static RAMFUNC int ManchesterDecoding(int v) else { modulation = bit & Demod.syncBit; modulation |= ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit; - //modulation = ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit; Demod.samples += 4; @@ -485,8 +467,6 @@ static RAMFUNC int ManchesterDecoding(int v) if(Demod.state == DEMOD_SOF_COMPLETE) { Demod.output[Demod.len] = 0x0f; Demod.len++; - Demod.parityBits <<= 1; - Demod.parityBits ^= OddByteParity[0x0f]; Demod.state = DEMOD_UNSYNCD; // error = 0x0f; return TRUE; @@ -567,11 +547,9 @@ static RAMFUNC int ManchesterDecoding(int v) // Tag response does not need to be a complete byte! if(Demod.len > 0 || Demod.bitCount > 0) { if(Demod.bitCount > 1) { // was > 0, do not interpret last closing bit, is part of EOF - Demod.shiftReg >>= (9 - Demod.bitCount); + Demod.shiftReg >>= (9 - Demod.bitCount); // right align data Demod.output[Demod.len] = Demod.shiftReg & 0xff; Demod.len++; - // No parity bit, so just shift a 0 - Demod.parityBits <<= 1; } Demod.state = DEMOD_UNSYNCD; @@ -608,11 +586,6 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.shiftReg >>= 1; Demod.output[Demod.len] = (Demod.shiftReg & 0xff); Demod.len++; - - // FOR ISO15639 PARITY NOT SEND OTA, JUST CALCULATE IT FOR THE CLIENT - Demod.parityBits <<= 1; - Demod.parityBits ^= OddByteParity[(Demod.shiftReg & 0xff)]; - Demod.bitCount = 0; Demod.shiftReg = 0; } @@ -669,8 +642,8 @@ void RAMFUNC SnoopIClass(void) // So 32 should be enough! uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); // The response (tag -> reader) that we're receiving. - uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET); - + uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // reset traceLen to 0 @@ -769,10 +742,10 @@ void RAMFUNC SnoopIClass(void) //if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break; //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break; - if(tracing) - { - LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, Uart.parityBits,TRUE); - LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, TRUE); + if(tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Uart.output, Uart.byteCnt, parity); + LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, TRUE); } @@ -793,10 +766,10 @@ void RAMFUNC SnoopIClass(void) rsamples = samples - Demod.samples; LED_B_ON(); - if(tracing) - { - LogTrace(Demod.output,Demod.len, (GetCountSspClk()-time_0) << 4 , Demod.parityBits,FALSE); - LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, FALSE); + if(tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Demod.output, Demod.len, parity); + LogTrace(Demod.output, Demod.len, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, FALSE); } @@ -868,10 +841,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; - /*if(OutOfNDecoding((b & 0xf0) >> 4)) { - *len = Uart.byteCnt; - return TRUE; - }*/ + if(OutOfNDecoding(b & 0x0f)) { *len = Uart.byteCnt; return TRUE; @@ -994,7 +964,7 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain { uint8_t mac_responses[64] = { 0 }; - Dbprintf("Going into attack mode"); + Dbprintf("Going into attack mode, %d CSNS sent", numberOfCSNS); // In this mode, a number of csns are within datain. We'll simulate each one, one at a time // in order to collect MAC's from the reader. This can later be used in an offlne-attack // in order to obtain the keys, as in the "dismantling iclass"-paper. @@ -1004,7 +974,7 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain // The usb data is 512 bytes, fitting 65 8-byte CSNs in there. memcpy(csn_crc, datain+(i*8), 8); - if(doIClassSimulation(csn_crc,1,mac_responses)) + if(doIClassSimulation(csn_crc,1,mac_responses+i*8)) { return; // Button pressed } @@ -1027,8 +997,6 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain */ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf) { - - // CSN followed by two CRC bytes uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0}; @@ -1079,7 +1047,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader // + 1720.. uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); - memset(receivedCmd, 0x44, RECV_CMD_SIZE); + memset(receivedCmd, 0x44, MAX_FRAME_SIZE); int len; // Prepare card messages @@ -1175,9 +1143,10 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader respsize = 0; if (breakAfterMacReceived){ // dbprintf:ing ... - Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]); + Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x" + ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]); Dbprintf("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len, - receivedCmd[0], receivedCmd[1], receivedCmd[2], + receivedCmd[0], receivedCmd[1], receivedCmd[2], receivedCmd[3], receivedCmd[4], receivedCmd[5], receivedCmd[6], receivedCmd[7], receivedCmd[8]); if (reader_mac_buf != NULL) @@ -1219,14 +1188,13 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader } if (tracing) { - LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE); - LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE); + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(receivedCmd, len, parity); + LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, (r2t_time-time_0) << 4, parity, TRUE); if (respdata != NULL) { - LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE); - LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE); - - + GetParity(respdata, respsize, parity); + LogTrace(respdata, respsize, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE); } if(!tracing) { DbpString("Trace full"); @@ -1234,7 +1202,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader } } - memset(receivedCmd, 0x44, RECV_CMD_SIZE); + memset(receivedCmd, 0x44, MAX_FRAME_SIZE); } //Dbprintf("%x", cmdsRecvd); @@ -1295,20 +1263,23 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int FpgaSetupSsc(); if (wait) - if(*wait < 10) - *wait = 10; + { + if(*wait < 10) *wait = 10; + + for(c = 0; c < *wait;) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing! + c++; + } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; + (void)r; + } + WDT_HIT(); + } + + } - for(c = 0; c < *wait;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { - AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing! - c++; - } - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; - (void)r; - } - WDT_HIT(); - } uint8_t sendbyte; bool firstpart = TRUE; @@ -1388,21 +1359,23 @@ void CodeIClassCommand(const uint8_t * cmd, int len) void ReaderTransmitIClass(uint8_t* frame, int len) { - int wait = 0; - int samples = 0; - int par = 0; - - // This is tied to other size changes - // uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024; - CodeIClassCommand(frame,len); - - // Select the card - TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait); - if(trigger) - LED_A_ON(); - - // Store reader command in buffer - if (tracing) LogTrace(frame,len,rsamples,par,TRUE); + int wait = 0; + int samples = 0; + + // This is tied to other size changes + CodeIClassCommand(frame,len); + + // Select the card + TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait); + if(trigger) + LED_A_ON(); + + // Store reader command in buffer + if (tracing) { + uint8_t par[MAX_PARITY_SIZE]; + GetParity(frame, len, par); + LogTrace(frame, len, rsamples, rsamples, par, TRUE); + } } //----------------------------------------------------------------------------- @@ -1444,10 +1417,7 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; skip = !skip; if(skip) continue; - /*if(ManchesterDecoding((b>>4) & 0xf)) { - *samples = ((c - 1) << 3) + 4; - return TRUE; - }*/ + if(ManchesterDecoding(b & 0x0f)) { *samples = c << 3; return TRUE; @@ -1461,7 +1431,11 @@ int ReaderReceiveIClass(uint8_t* receivedAnswer) int samples = 0; if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return FALSE; rsamples += samples; - if (tracing) LogTrace(receivedAnswer,Demod.len,rsamples,Demod.parityBits,FALSE); + if (tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(receivedAnswer, Demod.len, parity); + LogTrace(receivedAnswer,Demod.len,rsamples,rsamples,parity,FALSE); + } if(samples == 0) return FALSE; return Demod.len; } @@ -1491,97 +1465,142 @@ void setupIclassReader() } +size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries) +{ + while(retries-- > 0) + { + ReaderTransmitIClass(command, cmdsize); + if(expected_size == ReaderReceiveIClass(resp)){ + return 0; + } + } + return 1;//Error +} + +/** + * @brief Talks to an iclass tag, sends the commands to get CSN and CC. + * @param card_data where the CSN and CC are stored for return + * @return 0 = fail + * 1 = Got CSN + * 2 = Got CSN and CC + */ +uint8_t handshakeIclassTag(uint8_t *card_data) +{ + static uint8_t act_all[] = { 0x0a }; + static uint8_t identify[] = { 0x0c }; + static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + static uint8_t readcheck_cc[]= { 0x88, 0x02 }; + uint8_t *resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + + uint8_t read_status = 0; + + // Send act_all + ReaderTransmitIClass(act_all, 1); + // Card present? + if(!ReaderReceiveIClass(resp)) return read_status;//Fail + //Send Identify + ReaderTransmitIClass(identify, 1); + //We expect a 10-byte response here, 8 byte anticollision-CSN and 2 byte CRC + uint8_t len = ReaderReceiveIClass(resp); + if(len != 10) return read_status;//Fail + + //Copy the Anti-collision CSN to our select-packet + memcpy(&select[1],resp,8); + //Select the card + ReaderTransmitIClass(select, sizeof(select)); + //We expect a 10-byte response here, 8 byte CSN and 2 byte CRC + len = ReaderReceiveIClass(resp); + if(len != 10) return read_status;//Fail + + //Success - level 1, we got CSN + //Save CSN in response data + memcpy(card_data,resp,8); + + //Flag that we got to at least stage 1, read CSN + read_status = 1; + + // Card selected, now read e-purse (cc) + ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc)); + if(ReaderReceiveIClass(resp) == 8) { + //Save CC (e-purse) in response data + memcpy(card_data+8,resp,8); + + //Got both + read_status = 2; + } + + return read_status; +} + // Reader iClass Anticollission void ReaderIClass(uint8_t arg0) { - uint8_t act_all[] = { 0x0a }; - uint8_t identify[] = { 0x0c }; - uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - uint8_t readcheck_cc[]= { 0x88, 0x02 }; uint8_t card_data[24]={0}; uint8_t last_csn[8]={0}; - - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes - + int read_status= 0; bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE; + bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC; setupIclassReader(); size_t datasize = 0; while(!BUTTON_PRESS()) { - WDT_HIT(); - // Send act_all - ReaderTransmitIClass(act_all, 1); - // Card present? - if(ReaderReceiveIClass(resp)) { - - ReaderTransmitIClass(identify, 1); - - if(ReaderReceiveIClass(resp) == 10) { - //Copy the Anti-collision CSN to our select-packet - memcpy(&select[1],resp,8); - //Dbprintf("Anti-collision CSN: %02x %02x %02x %02x %02x %02x %02x %02x",resp[0], resp[1], resp[2], - // resp[3], resp[4], resp[5], - // resp[6], resp[7]); - //Select the card - ReaderTransmitIClass(select, sizeof(select)); - - if(ReaderReceiveIClass(resp) == 10) { - //Save CSN in response data - memcpy(card_data,resp,8); - datasize += 8; - //Flag that we got to at least stage 1, read CSN - read_status = 1; - - // Card selected - //Dbprintf("Readcheck on Sector 2"); - ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc)); - if(ReaderReceiveIClass(resp) == 8) { - //Save CC (e-purse) in response data - memcpy(card_data+8,resp,8); - datasize += 8; - //Got both - read_status = 2; - } - - LED_B_ON(); - //Send back to client, but don't bother if we already sent this - if(memcmp(last_csn, card_data, 8) != 0) - cmd_send(CMD_ACK,read_status,0,0,card_data,datasize); - - //Save that we already sent this.... - if(read_status == 2) - memcpy(last_csn, card_data, 8); - - LED_B_OFF(); - - if(abort_after_read) break; - } - } - } + if(traceLen > TRACE_SIZE) { + DbpString("Trace full"); + break; + } + WDT_HIT(); - if(traceLen > TRACE_SIZE) { - DbpString("Trace full"); - break; - } + read_status = handshakeIclassTag(card_data); + + if(read_status == 0) continue; + if(read_status == 1) datasize = 8; + if(read_status == 2) datasize = 16; + + LED_B_ON(); + //Send back to client, but don't bother if we already sent this + if(memcmp(last_csn, card_data, 8) != 0) + { + + if(!get_cc || (get_cc && read_status == 2)) + { + cmd_send(CMD_ACK,read_status,0,0,card_data,datasize); + if(abort_after_read) { + LED_A_OFF(); + return; + } + //Save that we already sent this.... + memcpy(last_csn, card_data, 8); + } + //If 'get_cc' was specified and we didn't get a CC, we'll just keep trying... + } + LED_B_OFF(); } + cmd_send(CMD_ACK,0,0,0,card_data, 0); LED_A_OFF(); } void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { - uint8_t act_all[] = { 0x0a }; - uint8_t identify[] = { 0x0c }; - uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - uint8_t readcheck_cc[]= { 0x88, 0x02 }; + + uint8_t card_data[USB_CMD_DATA_SIZE]={0}; + uint16_t block_crc_LUT[255] = {0}; + + {//Generate a lookup table for block crc + for(int block = 0; block < 255; block++){ + char bl = block; + block_crc_LUT[block] = iclass_crc16(&bl ,1); + } + } + //Dbprintf("Lookup table: %02x %02x %02x" ,block_crc_LUT[0],block_crc_LUT[1],block_crc_LUT[2]); + uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 }; uint16_t crc = 0; uint8_t cardsize=0; - bool read_success=false; uint8_t mem=0; static struct memory_t{ @@ -1592,107 +1611,113 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { int keyaccess; } memory; - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes - + uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + setupIclassReader(); - for(int i=0;i<1;i++) { + while(!BUTTON_PRESS()) { + WDT_HIT(); + if(traceLen > TRACE_SIZE) { DbpString("Trace full"); break; } - if (BUTTON_PRESS()) break; + uint8_t read_status = handshakeIclassTag(card_data); + if(read_status < 2) continue; - // Send act_all - ReaderTransmitIClass(act_all, 1); - // Card present? - if(ReaderReceiveIClass(resp)) { - ReaderTransmitIClass(identify, 1); - if(ReaderReceiveIClass(resp) == 10) { - // Select card - memcpy(&select[1],resp,8); - ReaderTransmitIClass(select, sizeof(select)); + //for now replay captured auth (as cc not updated) + memcpy(check+5,MAC,4); - if(ReaderReceiveIClass(resp) == 10) { - Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x", - resp[0], resp[1], resp[2], - resp[3], resp[4], resp[5], - resp[6], resp[7]); - } - // Card selected - Dbprintf("Readcheck on Sector 2"); - ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc)); - if(ReaderReceiveIClass(resp) == 8) { - Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x", - resp[0], resp[1], resp[2], - resp[3], resp[4], resp[5], - resp[6], resp[7]); - }else return; - Dbprintf("Authenticate"); - //for now replay captured auth (as cc not updated) - memcpy(check+5,MAC,4); - //Dbprintf(" AA: %02x %02x %02x %02x", - // check[5], check[6], check[7],check[8]); - ReaderTransmitIClass(check, sizeof(check)); - if(ReaderReceiveIClass(resp) == 4) { - Dbprintf(" AR: %02x %02x %02x %02x", - resp[0], resp[1], resp[2],resp[3]); - }else { - Dbprintf("Error: Authentication Fail!"); - return; - } - Dbprintf("Dump Contents"); - //first get configuration block - read_success=false; - read[1]=1; - uint8_t *blockno=&read[1]; - crc = iclass_crc16((char *)blockno,1); - read[2] = crc >> 8; - read[3] = crc & 0xff; - while(!read_success){ - ReaderTransmitIClass(read, sizeof(read)); - if(ReaderReceiveIClass(resp) == 10) { - read_success=true; - mem=resp[5]; - memory.k16= (mem & 0x80); - memory.book= (mem & 0x20); - memory.k2= (mem & 0x8); - memory.lockauth= (mem & 0x2); - memory.keyaccess= (mem & 0x1); + if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5)) + { + Dbprintf("Error: Authentication Fail!"); + continue; + } - } - } - if (memory.k16){ - cardsize=255; - }else cardsize=32; - //then loop around remaining blocks - for(uint8_t j=0; j> 8; - read[3] = crc & 0xff; - while(!read_success){ - ReaderTransmitIClass(read, sizeof(read)); - if(ReaderReceiveIClass(resp) == 10) { - read_success=true; - Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x", - j, resp[0], resp[1], resp[2], - resp[3], resp[4], resp[5], - resp[6], resp[7]); - } - } + //first get configuration block (block 1) + crc = block_crc_LUT[1]; + read[1]=1; + read[2] = crc >> 8; + read[3] = crc & 0xff; + + if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10)) + { + Dbprintf("Dump config (block 1) failed"); + continue; + } + + mem=resp[5]; + memory.k16= (mem & 0x80); + memory.book= (mem & 0x20); + memory.k2= (mem & 0x8); + memory.lockauth= (mem & 0x2); + memory.keyaccess= (mem & 0x1); + + cardsize = memory.k16 ? 255 : 32; + WDT_HIT(); + //Set card_data to all zeroes, we'll fill it with data + memset(card_data,0x0,USB_CMD_DATA_SIZE); + uint8_t failedRead =0; + uint8_t stored_data_length =0; + //then loop around remaining blocks + for(int block=0; block < cardsize; block++){ + + read[1]= block; + crc = block_crc_LUT[block]; + read[2] = crc >> 8; + read[3] = crc & 0xff; + + if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10)) + { + Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x", + block, resp[0], resp[1], resp[2], + resp[3], resp[4], resp[5], + resp[6], resp[7]); + + //Fill up the buffer + memcpy(card_data+stored_data_length,resp,8); + stored_data_length += 8; + + if(stored_data_length +8 > USB_CMD_DATA_SIZE) + {//Time to send this off and start afresh + cmd_send(CMD_ACK, + stored_data_length,//data length + failedRead,//Failed blocks? + 0,//Not used ATM + card_data, stored_data_length); + //reset + stored_data_length = 0; + failedRead = 0; } + + }else{ + failedRead = 1; + stored_data_length +=8;//Otherwise, data becomes misaligned + Dbprintf("Failed to dump block %d", block); } } - WDT_HIT(); + //Send off any remaining data + if(stored_data_length > 0) + { + cmd_send(CMD_ACK, + stored_data_length,//data length + failedRead,//Failed blocks? + 0,//Not used ATM + card_data, stored_data_length); + } + //If we got here, let's break + break; } - + //Signal end of transmission + cmd_send(CMD_ACK, + 0,//data length + 0,//Failed blocks? + 0,//Not used ATM + card_data, 0); + LED_A_OFF(); } @@ -1711,7 +1736,7 @@ void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, uint8_ uint16_t crc = 0; - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // Reset trace buffer memset(trace, 0x44, RECV_CMD_OFFSET);