X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0644d5e3a3ed255fea1084c0af564c00f592b36c..ce211cef39604f6075673c90881d12f19e1614ef:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index 1a375118..8c3be1f6 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -47,6 +47,8 @@ // different initial value (CRC_ICLASS) #include "iso14443crc.h" #include "iso15693tools.h" +#include "protocols.h" +#include "optimized_cipher.h" static int timeout = 4096; @@ -351,7 +353,7 @@ static struct { SUB_SECOND_HALF, SUB_BOTH } sub; - uint8_t *output; + uint8_t *output; } Demod; static RAMFUNC int ManchesterDecoding(int v) @@ -424,10 +426,11 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.state = DEMOD_UNSYNCD; error = 0x88; } - + + // TODO: use this error value to print? Ask Holiman. + // 2016-01-08 iceman } error = 0; - } } else { @@ -630,8 +633,6 @@ static RAMFUNC int ManchesterDecoding(int v) //----------------------------------------------------------------------------- void RAMFUNC SnoopIClass(void) { - - // We won't start recording the frames that we acquire until we trigger; // a good trigger condition to get started is probably when we see a // response from the tag. @@ -652,12 +653,12 @@ void RAMFUNC SnoopIClass(void) // The DMA buffer, used to stream samples from the FPGA uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE); - // reset traceLen to 0 - iso14a_set_tracing(TRUE); - iso14a_clear_trace(); + clear_trace(); + set_tracing(TRUE); + iso14a_set_trigger(FALSE); - int lastRxCounter; + int lastRxCounter; uint8_t *upTo; int smpl; int maxBehindBy = 0; @@ -703,22 +704,22 @@ void RAMFUNC SnoopIClass(void) for(;;) { LED_A_ON(); WDT_HIT(); - int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) & - (DMA_BUFFER_SIZE-1); - if(behindBy > maxBehindBy) { + int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) & (DMA_BUFFER_SIZE-1); + + if ( behindBy > maxBehindBy) { maxBehindBy = behindBy; - if(behindBy > (9 * DMA_BUFFER_SIZE / 10)) { + if ( behindBy > (9 * DMA_BUFFER_SIZE / 10)) { Dbprintf("blew circular buffer! behindBy=0x%x", behindBy); goto done; } } - if(behindBy < 1) continue; + if( behindBy < 1) continue; - LED_A_OFF(); + LED_A_OFF(); smpl = upTo[0]; upTo++; lastRxCounter -= 1; - if(upTo - dmaBuf > DMA_BUFFER_SIZE) { + if (upTo - dmaBuf > DMA_BUFFER_SIZE) { upTo -= DMA_BUFFER_SIZE; lastRxCounter += DMA_BUFFER_SIZE; AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) upTo; @@ -726,77 +727,75 @@ void RAMFUNC SnoopIClass(void) } //samples += 4; - samples += 1; + samples += 1; - if(smpl & 0xF) { - decbyte ^= (1 << (3 - div)); - } + if(smpl & 0xF) + decbyte ^= (1 << (3 - div)); + - // FOR READER SIDE COMMUMICATION... + // FOR READER SIDE COMMUMICATION... - decbyter <<= 2; - decbyter ^= (smpl & 0x30); + decbyter <<= 2; + decbyter ^= (smpl & 0x30); - div++; + ++div; - if((div + 1) % 2 == 0) { - smpl = decbyter; - if(OutOfNDecoding((smpl & 0xF0) >> 4)) { - rsamples = samples - Uart.samples; - time_stop = (GetCountSspClk()-time_0) << 4; - LED_C_ON(); - - //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) { - uint8_t parity[MAX_PARITY_SIZE]; - GetParity(Uart.output, Uart.byteCnt, parity); - LogTrace(Uart.output,Uart.byteCnt, time_start, time_stop, parity, TRUE); - } - + if (( div + 1) % 2 == 0) { + smpl = decbyter; + if ( OutOfNDecoding((smpl & 0xF0) >> 4)) { + rsamples = samples - Uart.samples; + time_stop = (GetCountSspClk()-time_0) << 4; + LED_C_ON(); + + //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) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Uart.output, Uart.byteCnt, parity); + LogTrace(Uart.output,Uart.byteCnt, time_start, time_stop, parity, TRUE); + } - /* And ready to receive another command. */ - Uart.state = STATE_UNSYNCD; - /* And also reset the demod code, which might have been */ - /* false-triggered by the commands from the reader. */ - Demod.state = DEMOD_UNSYNCD; - LED_B_OFF(); - Uart.byteCnt = 0; - }else{ - time_start = (GetCountSspClk()-time_0) << 4; + /* And ready to receive another command. */ + Uart.state = STATE_UNSYNCD; + /* And also reset the demod code, which might have been */ + /* false-triggered by the commands from the reader. */ + Demod.state = DEMOD_UNSYNCD; + LED_B_OFF(); + Uart.byteCnt = 0; + } else { + time_start = (GetCountSspClk()-time_0) << 4; + } + decbyter = 0; } - decbyter = 0; - } - if(div > 3) { - smpl = decbyte; - if(ManchesterDecoding(smpl & 0x0F)) { - time_stop = (GetCountSspClk()-time_0) << 4; + if(div > 3) { + smpl = decbyte; + if(ManchesterDecoding(smpl & 0x0F)) { + time_stop = (GetCountSspClk()-time_0) << 4; - rsamples = samples - Demod.samples; - LED_B_ON(); + rsamples = samples - Demod.samples; + LED_B_ON(); - if(tracing) { - uint8_t parity[MAX_PARITY_SIZE]; - GetParity(Demod.output, Demod.len, parity); - LogTrace(Demod.output, Demod.len, time_start, time_stop, parity, FALSE); - } + if(tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Demod.output, Demod.len, parity); + LogTrace(Demod.output, Demod.len, time_start, time_stop, parity, FALSE); + } - // And ready to receive another response. - memset(&Demod, 0, sizeof(Demod)); - Demod.output = tagToReaderResponse; - Demod.state = DEMOD_UNSYNCD; - LED_C_OFF(); - }else{ - time_start = (GetCountSspClk()-time_0) << 4; + // And ready to receive another response. + memset(&Demod, 0, sizeof(Demod)); + Demod.output = tagToReaderResponse; + Demod.state = DEMOD_UNSYNCD; + LED_C_OFF(); + } else { + time_start = (GetCountSspClk()-time_0) << 4; + } + + div = 0; + decbyte = 0x00; } - - div = 0; - decbyte = 0x00; - } - //} - if(BUTTON_PRESS()) { + if (BUTTON_PRESS()) { DbpString("cancelled_a"); goto done; } @@ -805,23 +804,20 @@ void RAMFUNC SnoopIClass(void) DbpString("COMMAND FINISHED"); Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt); - Dbprintf("%x %x %x", Uart.byteCntMax, traceLen, (int)Uart.output[0]); + Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]); done: AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS; Dbprintf("%x %x %x", maxBehindBy, Uart.state, Uart.byteCnt); - Dbprintf("%x %x %x", Uart.byteCntMax, traceLen, (int)Uart.output[0]); - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - LED_D_OFF(); + Dbprintf("%x %x %x", Uart.byteCntMax, BigBuf_get_traceLen(), (int)Uart.output[0]); + LEDsoff(); + set_tracing(FALSE); } void rotateCSN(uint8_t* originalCSN, uint8_t* rotatedCSN) { int i; - for(i = 0; i < 8; i++) { + for(i = 0; i < 8; i++) rotatedCSN[i] = (originalCSN[i] >> 3) | (originalCSN[(i+1)%8] << 5); - } } //----------------------------------------------------------------------------- @@ -923,7 +919,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len) * The mode FPGA_HF_SIMULATOR_MODULATE_424K_8BIT which we use to simulate tag, * works like this. * - A 1-bit input to the FPGA becomes 8 pulses on 423.5kHz (fc/32) (18.88us). - * - A 0-bit inptu to the FPGA becomes an unmodulated time of 18.88us + * - A 0-bit input to the FPGA becomes an unmodulated time of 18.88us * * In this mode the SOF can be written as 00011101 = 0x1D * The EOF can be written as 10111000 = 0xb8 @@ -943,7 +939,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len) uint8_t b = cmd[i]; ToSend[++ToSendMax] = encode4Bits(b & 0xF); //Least significant half ToSend[++ToSendMax] = encode4Bits((b >>4) & 0xF);//Most significant half - } + } // Send EOF ToSend[++ToSendMax] = 0xB8; @@ -966,8 +962,11 @@ static void CodeIClassTagSOF() // Convert from last byte pos to length ToSendMax++; } +#define MODE_SIM_CSN 0 +#define MODE_EXIT_AFTER_MAC 1 +#define MODE_FULLSIM 2 -int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf); +int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf); /** * @brief SimulateIClass simulates an iClass card. * @param arg0 type of simulation @@ -987,17 +986,23 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // Enable and clear the trace - iso14a_set_tracing(TRUE); - iso14a_clear_trace(); + clear_trace(); + set_tracing(TRUE); + + //Use the emulator memory for SIM + uint8_t *emulator = BigBuf_get_EM_addr(); - uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 }; if(simType == 0) { // Use the CSN from commandline - memcpy(csn_crc, datain, 8); - doIClassSimulation(csn_crc,0,NULL); + memcpy(emulator, datain, 8); + doIClassSimulation(MODE_SIM_CSN,NULL); }else if(simType == 1) { - doIClassSimulation(csn_crc,0,NULL); + //Default CSN + uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 }; + // Use the CSN from commandline + memcpy(emulator, csn_crc, 8); + doIClassSimulation(MODE_SIM_CSN,NULL); } else if(simType == 2) { @@ -1012,8 +1017,8 @@ 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+i*8)) + memcpy(emulator, datain+(i*8), 8); + if(doIClassSimulation(MODE_EXIT_AFTER_MAC,mac_responses+i*8)) { cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8); return; // Button pressed @@ -1021,6 +1026,9 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain } cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8); + }else if(simType == 3){ + //This is 'full sim' mode, where we use the emulator storage for data. + doIClassSimulation(MODE_FULLSIM, NULL); } else{ // We may want a mode here where we hardcode the csns to use (from proxclone). @@ -1028,31 +1036,56 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain Dbprintf("The mode is not implemented, reserved for future use"); } Dbprintf("Done..."); - + set_tracing(FALSE); +} +void AppendCrc(uint8_t* data, int len) +{ + ComputeCrc14443(CRC_ICLASS,data,len,data+len,data+len+1); } + /** * @brief Does the actual simulation * @param csn - csn to use * @param breakAfterMacReceived if true, returns after reader MAC has been received. */ -int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf) +int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) { + // free eventually allocated BigBuf memory + BigBuf_free_keep_EM(); + State cipher_state; +// State cipher_state_reserve; + uint8_t *csn = BigBuf_get_EM_addr(); + uint8_t *emulator = csn; + uint8_t sof_data[] = { 0x0F} ; // CSN followed by two CRC bytes - uint8_t response1[] = { 0x0F} ; - 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}; - memcpy(response3,csn,sizeof(response3)); + uint8_t anticoll_data[10] = { 0 }; + uint8_t csn_data[10] = { 0 }; + memcpy(csn_data,csn,sizeof(csn_data)); Dbprintf("Simulating 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]); - // e-Purse - uint8_t response4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // Construct anticollision-CSN - rotateCSN(response3,response2); + rotateCSN(csn_data,anticoll_data); // Compute CRC on both CSNs - ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]); - ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]); + ComputeCrc14443(CRC_ICLASS, anticoll_data, 8, &anticoll_data[8], &anticoll_data[9]); + ComputeCrc14443(CRC_ICLASS, csn_data, 8, &csn_data[8], &csn_data[9]); + + uint8_t diversified_key[8] = { 0 }; + // e-Purse + uint8_t card_challenge_data[8] = { 0x00 }; + if(simulationMode == MODE_FULLSIM) + { + //The diversified key should be stored on block 3 + //Get the diversified key from emulator memory + memcpy(diversified_key, emulator+(8*3),8); + + //Card challenge, a.k.a e-purse is on block 2 + memcpy(card_challenge_data,emulator + (8 * 2) , 8); + //Precalculate the cipher state, feeding it the CC + cipher_state = opt_doTagMAC_1(card_challenge_data,diversified_key); + + } int exitLoop = 0; // Reader 0a @@ -1063,34 +1096,31 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader // Tag CSN uint8_t *modulated_response; - int modulated_response_size; + int modulated_response_size = 0; uint8_t* trace_data = NULL; int trace_data_size = 0; - //uint8_t sof = 0x0f; - // free eventually allocated BigBuf memory - BigBuf_free(); + // Respond SOF -- takes 1 bytes - uint8_t *resp1 = BigBuf_malloc(2); - int resp1Len; + uint8_t *resp_sof = BigBuf_malloc(2); + int resp_sof_Len; // Anticollision CSN (rotated CSN) // 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte) - uint8_t *resp2 = BigBuf_malloc(28); - int resp2Len; + uint8_t *resp_anticoll = BigBuf_malloc(28); + int resp_anticoll_len; // CSN // 22: Takes 2 bytes for SOF/EOF and 10 * 2 = 20 bytes (2 bytes/byte) - uint8_t *resp3 = BigBuf_malloc(30); - int resp3Len; + uint8_t *resp_csn = BigBuf_malloc(30); + int resp_csn_len; // e-Purse // 18: Takes 2 bytes for SOF/EOF and 8 * 2 = 16 bytes (2 bytes/bit) - uint8_t *resp4 = BigBuf_malloc(20); - int resp4Len; + uint8_t *resp_cc = BigBuf_malloc(20); + int resp_cc_len; uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE); - memset(receivedCmd, 0x44, MAX_FRAME_SIZE); int len; // Prepare card messages @@ -1098,20 +1128,26 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader // First card answer: SOF CodeIClassTagSOF(); - memcpy(resp1, ToSend, ToSendMax); resp1Len = ToSendMax; + memcpy(resp_sof, ToSend, ToSendMax); resp_sof_Len = ToSendMax; // Anticollision CSN - CodeIClassTagAnswer(response2, sizeof(response2)); - memcpy(resp2, ToSend, ToSendMax); resp2Len = ToSendMax; + CodeIClassTagAnswer(anticoll_data, sizeof(anticoll_data)); + memcpy(resp_anticoll, ToSend, ToSendMax); resp_anticoll_len = ToSendMax; // CSN - CodeIClassTagAnswer(response3, sizeof(response3)); - memcpy(resp3, ToSend, ToSendMax); resp3Len = ToSendMax; + CodeIClassTagAnswer(csn_data, sizeof(csn_data)); + memcpy(resp_csn, ToSend, ToSendMax); resp_csn_len = ToSendMax; // e-Purse - CodeIClassTagAnswer(response4, sizeof(response4)); - memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax; + CodeIClassTagAnswer(card_challenge_data, sizeof(card_challenge_data)); + memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax; + //This is used for responding to READ-block commands or other data which is dynamically generated + //First the 'trace'-data, not encoded for FPGA + uint8_t *data_generic_trace = BigBuf_malloc(8 + 2);//8 bytes data + 2byte CRC is max tag answer + //Then storage for the modulated data + //Each bit is doubled when modulated for FPGA, and we also have SOF and EOF (2 bytes) + uint8_t *data_response = BigBuf_malloc( (8+2) * 2 + 2); // Start from off (no field generated) //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); @@ -1131,9 +1167,9 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader LED_A_ON(); bool buttonPressed = false; - + uint8_t response_delay = 1; while(!exitLoop) { - + response_delay = 1; LED_B_OFF(); //Signal tracer // Can be used to get a trigger for an oscilloscope.. @@ -1148,38 +1184,52 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader LED_C_ON(); // Okay, look at the command now. - if(receivedCmd[0] == 0x0a ) { + if(receivedCmd[0] == ICLASS_CMD_ACTALL ) { // Reader in anticollission phase - modulated_response = resp1; modulated_response_size = resp1Len; //order = 1; - trace_data = response1; - trace_data_size = sizeof(response1); - } else if(receivedCmd[0] == 0x0c) { + modulated_response = resp_sof; modulated_response_size = resp_sof_Len; //order = 1; + trace_data = sof_data; + trace_data_size = sizeof(sof_data); + } else if(receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 1) { // Reader asks for anticollission CSN - modulated_response = resp2; modulated_response_size = resp2Len; //order = 2; - trace_data = response2; - trace_data_size = sizeof(response2); + modulated_response = resp_anticoll; modulated_response_size = resp_anticoll_len; //order = 2; + trace_data = anticoll_data; + trace_data_size = sizeof(anticoll_data); //DbpString("Reader requests anticollission CSN:"); - } else if(receivedCmd[0] == 0x81) { + } else if(receivedCmd[0] == ICLASS_CMD_SELECT) { // Reader selects anticollission CSN. // Tag sends the corresponding real CSN - modulated_response = resp3; modulated_response_size = resp3Len; //order = 3; - trace_data = response3; - trace_data_size = sizeof(response3); + modulated_response = resp_csn; modulated_response_size = resp_csn_len; //order = 3; + trace_data = csn_data; + trace_data_size = sizeof(csn_data); //DbpString("Reader selects anticollission CSN:"); - } else if(receivedCmd[0] == 0x88) { + } else if(receivedCmd[0] == ICLASS_CMD_READCHECK_KD) { // Read e-purse (88 02) - modulated_response = resp4; modulated_response_size = resp4Len; //order = 4; - trace_data = response4; - trace_data_size = sizeof(response4); + modulated_response = resp_cc; modulated_response_size = resp_cc_len; //order = 4; + trace_data = card_challenge_data; + trace_data_size = sizeof(card_challenge_data); LED_B_ON(); - } else if(receivedCmd[0] == 0x05) { + } else if(receivedCmd[0] == ICLASS_CMD_CHECK) { // Reader random and reader MAC!!! - // Do not respond + if(simulationMode == MODE_FULLSIM) + { + //NR, from reader, is in receivedCmd +1 + opt_doTagMAC_2(cipher_state,receivedCmd+1,data_generic_trace,diversified_key); + + trace_data = data_generic_trace; + trace_data_size = 4; + CodeIClassTagAnswer(trace_data , trace_data_size); + memcpy(data_response, ToSend, ToSendMax); + modulated_response = data_response; + modulated_response_size = ToSendMax; + response_delay = 0;//We need to hurry here... + //exitLoop = true; + }else + { //Not fullsim, we don't respond // We do not know what to answer, so lets keep quiet - modulated_response = resp1; modulated_response_size = 0; //order = 5; + modulated_response = resp_sof; modulated_response_size = 0; trace_data = NULL; trace_data_size = 0; - if (breakAfterMacReceived){ + if (simulationMode == MODE_EXIT_AFTER_MAC){ // 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]); @@ -1193,12 +1243,51 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader } exitLoop = true; } - } else if(receivedCmd[0] == 0x00 && len == 1) { + } + + } else if(receivedCmd[0] == ICLASS_CMD_HALT && len == 1) { // Reader ends the session - modulated_response = resp1; modulated_response_size = 0; //order = 0; + modulated_response = resp_sof; modulated_response_size = 0; //order = 0; trace_data = NULL; trace_data_size = 0; - } else { + } else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){ + //Read block + uint16_t blk = receivedCmd[1]; + //Take the data... + memcpy(data_generic_trace, emulator+(blk << 3),8); + //Add crc + AppendCrc(data_generic_trace, 8); + trace_data = data_generic_trace; + trace_data_size = 10; + CodeIClassTagAnswer(trace_data , trace_data_size); + memcpy(data_response, ToSend, ToSendMax); + modulated_response = data_response; + modulated_response_size = ToSendMax; + }else if(receivedCmd[0] == ICLASS_CMD_UPDATE && simulationMode == MODE_FULLSIM) + {//Probably the reader wants to update the nonce. Let's just ignore that for now. + // OBS! If this is implemented, don't forget to regenerate the cipher_state + //We're expected to respond with the data+crc, exactly what's already in the receivedcmd + //receivedcmd is now UPDATE 1b | ADDRESS 1b| DATA 8b| Signature 4b or CRC 2b| + + //Take the data... + memcpy(data_generic_trace, receivedCmd+2,8); + //Add crc + AppendCrc(data_generic_trace, 8); + trace_data = data_generic_trace; + trace_data_size = 10; + CodeIClassTagAnswer(trace_data , trace_data_size); + memcpy(data_response, ToSend, ToSendMax); + modulated_response = data_response; + modulated_response_size = ToSendMax; + } + else if(receivedCmd[0] == ICLASS_CMD_PAGESEL) + {//Pagesel + //Pagesel enables to select a page in the selected chip memory and return its configuration block + //Chips with a single page will not answer to this command + // It appears we're fine ignoring this. + //Otherwise, we should answer 8bytes (block) + 2bytes CRC + } + else { //#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44 // Never seen this command before Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x", @@ -1207,7 +1296,8 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader receivedCmd[3], receivedCmd[4], receivedCmd[5], receivedCmd[6], receivedCmd[7], receivedCmd[8]); // Do not respond - modulated_response = resp1; modulated_response_size = 0; //order = 0; + modulated_response = resp_sof; + modulated_response_size = 0; //order = 0; trace_data = NULL; trace_data_size = 0; } @@ -1223,7 +1313,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader A legit tag has about 380us delay between reader EOT and tag SOF. **/ if(modulated_response_size > 0) { - SendIClassAnswer(modulated_response, modulated_response_size, 1); + SendIClassAnswer(modulated_response, modulated_response_size, response_delay); t2r_time = GetCountSspClk(); } @@ -1236,24 +1326,17 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader GetParity(trace_data, trace_data_size, parity); LogTrace(trace_data, trace_data_size, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE); } - if(!tracing) { + if(!tracing) DbpString("Trace full"); - //break; - } } - memset(receivedCmd, 0x44, MAX_FRAME_SIZE); } - //Dbprintf("%x", cmdsRecvd); - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - + LEDsoff(); + if(buttonPressed) - { DbpString("Button pressed"); - } + return buttonPressed; } @@ -1301,63 +1384,62 @@ static int SendIClassAnswer(uint8_t *resp, int respLen, int delay) //----------------------------------------------------------------------------- static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait) { - int c; - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); - AT91C_BASE_SSC->SSC_THR = 0x00; - FpgaSetupSsc(); - - if (wait) - { - 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(); - } - - } - - - uint8_t sendbyte; - bool firstpart = TRUE; - c = 0; - for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { - - // DOUBLE THE SAMPLES! - if(firstpart) { - sendbyte = (cmd[c] & 0xf0) | (cmd[c] >> 4); - } - else { - sendbyte = (cmd[c] & 0x0f) | (cmd[c] << 4); - c++; - } - if(sendbyte == 0xff) { - sendbyte = 0xfe; - } - AT91C_BASE_SSC->SSC_THR = sendbyte; - firstpart = !firstpart; + int c; + volatile uint32_t r; + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); + AT91C_BASE_SSC->SSC_THR = 0x00; + FpgaSetupSsc(); + + if (wait) { + 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)) { + r = AT91C_BASE_SSC->SSC_RHR; + (void)r; + } + WDT_HIT(); + } + } - if(c >= len) { - break; - } - } - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR; - (void)r; - } - WDT_HIT(); - } - if (samples) *samples = (c + *wait) << 3; -} + uint8_t sendbyte; + bool firstpart = TRUE; + c = 0; + for(;;) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + + // DOUBLE THE SAMPLES! + if(firstpart) { + sendbyte = (cmd[c] & 0xf0) | (cmd[c] >> 4); + } + else { + sendbyte = (cmd[c] & 0x0f) | (cmd[c] << 4); + c++; + } + + if(sendbyte == 0xff) + sendbyte = 0xfe; + + AT91C_BASE_SSC->SSC_THR = sendbyte; + firstpart = !firstpart; + + if(c >= len) break; + + } + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + r = AT91C_BASE_SSC->SSC_RHR; + (void)r; + } + + WDT_HIT(); + } + if (samples && wait) *samples = (c + *wait) << 3; +} //----------------------------------------------------------------------------- // Prepare iClass reader command to send to FPGA @@ -1403,18 +1485,18 @@ void CodeIClassCommand(const uint8_t * cmd, int len) void ReaderTransmitIClass(uint8_t* frame, int len) { - int wait = 0; - int samples = 0; + int wait = 0; + int samples = 0; - // This is tied to other size changes - CodeIClassCommand(frame,len); + // This is tied to other size changes + CodeIClassCommand(frame,len); - // Select the card - TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait); - if(trigger) - LED_A_ON(); + // Select the card + TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait); + if(trigger) + LED_A_ON(); - // Store reader command in buffer + // Store reader command in buffer if (tracing) { uint8_t par[MAX_PARITY_SIZE]; GetParity(frame, len, par); @@ -1450,7 +1532,7 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, for(;;) { WDT_HIT(); - if(BUTTON_PRESS()) return FALSE; + if(BUTTON_PRESS()) return FALSE; if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { AT91C_BASE_SSC->SSC_THR = 0x00; // To make use of exact timing of next command from reader!! @@ -1488,9 +1570,9 @@ void setupIclassReader() { FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // Reset trace buffer - iso14a_set_tracing(TRUE); - iso14a_clear_trace(); - + clear_trace(); + set_tracing(TRUE); + // Setup SSC FpgaSetupSsc(); // Start from off (no field generated) @@ -1509,16 +1591,16 @@ void setupIclassReader() } -size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries) +bool 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 true; } } - return 1;//Error + return false;//Error } /** @@ -1528,12 +1610,18 @@ size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* * 1 = Got CSN * 2 = Got CSN and CC */ -uint8_t handshakeIclassTag(uint8_t *card_data) +uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key) { static uint8_t act_all[] = { 0x0a }; - static uint8_t identify[] = { 0x0c }; + //static uint8_t identify[] = { 0x0c }; + static uint8_t identify[] = { 0x0c, 0x00, 0x73, 0x33 }; static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; static uint8_t readcheck_cc[]= { 0x88, 0x02 }; + if (use_credit_key) + readcheck_cc[0] = 0x18; + else + readcheck_cc[0] = 0x88; + uint8_t resp[ICLASS_BUFFER_SIZE]; uint8_t read_status = 0; @@ -1568,63 +1656,114 @@ uint8_t handshakeIclassTag(uint8_t *card_data) if(ReaderReceiveIClass(resp) == 8) { //Save CC (e-purse) in response data memcpy(card_data+8,resp,8); - - //Got both - read_status = 2; + read_status++; } return read_status; } +uint8_t handshakeIclassTag(uint8_t *card_data){ + return handshakeIclassTag_ext(card_data, false); +} + // Reader iClass Anticollission void ReaderIClass(uint8_t arg0) { - uint8_t card_data[24]={0}; + uint8_t card_data[6 * 8]={0}; + memset(card_data, 0xFF, sizeof(card_data)); uint8_t last_csn[8]={0}; + //Read conf block CRC(0x01) => 0xfa 0x22 + uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22}; + //Read conf block CRC(0x05) => 0xde 0x64 + uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64}; + + int read_status= 0; + uint8_t result_status = 0; bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE; - bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC; - + bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY; + bool use_credit_key = false; + if (arg0 & FLAG_ICLASS_READER_CEDITKEY) + use_credit_key = true; + set_tracing(TRUE); setupIclassReader(); - size_t datasize = 0; + uint16_t tryCnt=0; while(!BUTTON_PRESS()) { - - if(traceLen > BigBuf_max_traceLen()) { + if (try_once && tryCnt > 5) break; + + tryCnt++; + + if(!tracing) { DbpString("Trace full"); break; } WDT_HIT(); - read_status = handshakeIclassTag(card_data); + read_status = handshakeIclassTag_ext(card_data, use_credit_key); 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(read_status == 1) result_status = FLAG_ICLASS_READER_CSN; + if(read_status == 2) result_status = FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CC; + + // handshakeIclass returns CSN|CC, but the actual block + // layout is CSN|CONFIG|CC, so here we reorder the data, + // moving CC forward 8 bytes + memcpy(card_data+16,card_data+8, 8); + //Read block 1, config + if(arg0 & FLAG_ICLASS_READER_CONF) { + if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf),card_data+8, 10, 10)) + { + result_status |= FLAG_ICLASS_READER_CONF; + } else { + Dbprintf("Failed to dump config block"); + } + } + + //Read block 5, AA + if(arg0 & FLAG_ICLASS_READER_AA){ + if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA),card_data+(8*4), 10, 10)) + { + result_status |= FLAG_ICLASS_READER_AA; + } else { + //Dbprintf("Failed to dump AA block"); + } + } - if(!get_cc || (get_cc && read_status == 2)) + // 0 : CSN + // 1 : Configuration + // 2 : e-purse + // (3,4 write-only, kc and kd) + // 5 Application issuer area + // + //Then we can 'ship' back the 8 * 5 bytes of data, + // with 0xFF:s in block 3 and 4. + + 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 caller requires that we get CC, continue until we got it + if( (arg0 & read_status & FLAG_ICLASS_READER_CC) || !(arg0 & FLAG_ICLASS_READER_CC)) { - cmd_send(CMD_ACK,read_status,0,0,card_data,datasize); + cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data)); if(abort_after_read) { LED_A_OFF(); + set_tracing(FALSE); 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(); + set_tracing(FALSE); } void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { @@ -1658,13 +1797,13 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { uint8_t resp[ICLASS_BUFFER_SIZE]; setupIclassReader(); - + set_tracing(TRUE); while(!BUTTON_PRESS()) { WDT_HIT(); - if(traceLen > BigBuf_max_traceLen()) { + if(!tracing) { DbpString("Trace full"); break; } @@ -1675,7 +1814,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { //for now replay captured auth (as cc not updated) memcpy(check+5,MAC,4); - if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5)) + if(!sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5)) { Dbprintf("Error: Authentication Fail!"); continue; @@ -1687,26 +1826,26 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { read[2] = crc >> 8; read[3] = crc & 0xff; - if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10)) + 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); + 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 + uint32_t stored_data_length =0; + //then loop around remaining blocks for(int block=0; block < cardsize; block++){ read[1]= block; @@ -1714,17 +1853,16 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { read[2] = crc >> 8; read[3] = crc & 0xff; - if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10)) + 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]); + 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, @@ -1736,13 +1874,13 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { stored_data_length = 0; failedRead = 0; } - - }else{ + } else { failedRead = 1; stored_data_length +=8;//Otherwise, data becomes misaligned Dbprintf("Failed to dump block %d", block); } } + //Send off any remaining data if(stored_data_length > 0) { @@ -1763,132 +1901,132 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { card_data, 0); LED_A_OFF(); + set_tracing(FALSE); } -//2. Create Read method (cut-down from above) based off responses from 1. -// Since we have the MAC could continue to use replay function. -//3. Create Write method -/* -void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, 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 check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 }; - uint8_t write[] = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - - uint16_t crc = 0; - - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); - - // Reset trace buffer - memset(trace, 0x44, RECV_CMD_OFFSET); - traceLen = 0; - - // Setup SSC - FpgaSetupSsc(); - // Start from off (no field generated) - // Signal field is off with the appropriate LED - LED_D_OFF(); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(200); +void iClass_ReadCheck(uint8_t blockNo, uint8_t keyType) { + uint8_t readcheck[] = { keyType, blockNo }; + uint8_t resp[] = {0,0,0,0,0,0,0,0}; + size_t isOK = 0; + isOK = sendCmdGetResponseWithRetries(readcheck, sizeof(readcheck), resp, sizeof(resp), 6); + cmd_send(CMD_ACK,isOK,0,0,0,0); +} - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); +void iClass_Authentication(uint8_t *MAC) { + uint8_t check[] = { ICLASS_CMD_CHECK, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + uint8_t resp[ICLASS_BUFFER_SIZE]; + memcpy(check+5,MAC,4); + bool isOK; + isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6); + cmd_send(CMD_ACK,isOK,0,0,0,0); +} +bool iClass_ReadBlock(uint8_t blockNo, uint8_t *readdata) { + uint8_t readcmd[] = {ICLASS_CMD_READ_OR_IDENTIFY, blockNo, 0x00, 0x00}; //0x88, 0x00 // can i use 0C? + char bl = blockNo; + uint16_t rdCrc = iclass_crc16(&bl, 1); + readcmd[2] = rdCrc >> 8; + readcmd[3] = rdCrc & 0xff; + uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0}; + bool isOK = false; + + //readcmd[1] = blockNo; + isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd), resp, 10, 10); + memcpy(readdata, resp, sizeof(resp)); + + return isOK; +} - // Now give it time to spin up. - // Signal field is on with the appropriate LED - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); - SpinDelay(200); +void iClass_ReadBlk(uint8_t blockno) { + uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0}; + bool isOK = false; + isOK = iClass_ReadBlock(blockno, readblockdata); + cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8); +} - LED_A_ON(); +void iClass_Dump(uint8_t blockno, uint8_t numblks) { + uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0}; + bool isOK = false; + uint8_t blkCnt = 0; - for(int i=0;i<1;i++) { - - if(traceLen > TRACE_SIZE) { - DbpString("Trace full"); + BigBuf_free(); + uint8_t *dataout = BigBuf_malloc(255*8); + if (dataout == NULL){ + Dbprintf("out of memory"); + OnError(1); + return; + } + memset(dataout,0xFF,255*8); + + for (;blkCnt < numblks; blkCnt++) { + isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata); + if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) { //try again + isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata); + if (!isOK) { + Dbprintf("Block %02X failed to read", blkCnt+blockno); break; } - - if (BUTTON_PRESS()) break; - - // 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)); - - 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]); + } + memcpy(dataout+(blkCnt*8),readblockdata,8); + } + //return pointer to dump memory in arg3 + cmd_send(CMD_ACK,isOK,blkCnt,BigBuf_max_traceLen(),0,0); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); + BigBuf_free(); +} + +bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) { + uint8_t write[] = { ICLASS_CMD_UPDATE, blockNo, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + //uint8_t readblockdata[10]; + //write[1] = blockNo; + memcpy(write+2, data, 12); // data + mac + uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0}; + bool isOK; + isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10); + if (isOK) { + //Dbprintf("WriteResp: %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",resp[0],resp[1],resp[2],resp[3],resp[4],resp[5],resp[6],resp[7],resp[8],resp[9]); + if (memcmp(write+2,resp,8)) { + //error try again + isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10); + } + } + return isOK; +} + +void iClass_WriteBlock(uint8_t blockNo, uint8_t *data) { + bool isOK = iClass_WriteBlock_ext(blockNo, data); + if (isOK){ + Dbprintf("Write block [%02x] successful",blockNo); }else { - Dbprintf("Error: Authentication Fail!"); - return; - } - Dbprintf("Write Block"); - - //read configuration for max block number - 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 (memory.k16){ - cardsize=255; - }else cardsize=32; - //check card_size - - memcpy(write+1,blockNo,1); - memcpy(write+2,data,8); - memcpy(write+10,mac,4); - while(!send_success){ - ReaderTransmitIClass(write, sizeof(write)); - if(ReaderReceiveIClass(resp) == 10) { - write_success=true; - } - }// + Dbprintf("Write block [%02x] failed",blockNo); + } + cmd_send(CMD_ACK,isOK,0,0,0,0); +} + +void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t *data) { + int i; + int written = 0; + int total_block = (endblock - startblock) + 1; + for (i = 0; i < total_block;i++){ + // block number + if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){ + Dbprintf("Write block [%02x] successful",i + startblock); + written++; + } else { + if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){ + Dbprintf("Write block [%02x] successful",i + startblock); + written++; + } else { + Dbprintf("Write block [%02x] failed",i + startblock); + } } - WDT_HIT(); } - - LED_A_OFF(); -}*/ + if (written == total_block) + Dbprintf("Clone complete"); + else + Dbprintf("Clone incomplete"); + + cmd_send(CMD_ACK,1,0,0,0,0); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LEDsoff(); +}