X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b67f7ec359806293a6da14208bad56b842dedb60..437035a75b2737d0b36886bc2bacaeb0219c6325:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index a976217d..d27fc1c6 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -42,13 +42,16 @@ #include "string.h" #include "common.h" #include "cmd.h" +#include "iso14443a.h" // Needed for CRC in emulation mode; // same construction as in ISO 14443; // different initial value (CRC_ICLASS) #include "iso14443crc.h" #include "iso15693tools.h" -#include "cipher.h" #include "protocols.h" +#include "optimized_cipher.h" +#include "usb_cdc.h" // for usb_poll_validate_length + static int timeout = 4096; @@ -88,7 +91,7 @@ static RAMFUNC int OutOfNDecoding(int bit) if(!Uart.bitBuffer) { Uart.bitBuffer = bit ^ 0xFF0; - return FALSE; + return false; } else { Uart.bitBuffer <<= 4; @@ -99,7 +102,7 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.output[Uart.byteCnt] = Uart.bitBuffer & 0xFF; Uart.byteCnt++; Uart.swapper = 0; - if(Uart.byteCnt > 15) { return TRUE; } + if(Uart.byteCnt > 15) { return true; } } else { Uart.swapper = 1; @@ -136,12 +139,12 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.highCnt = 0; if(Uart.byteCnt == 0) { // Its not straightforward to show single EOFs - // So just leave it and do not return TRUE + // So just leave it and do not return true Uart.output[0] = 0xf0; Uart.byteCnt++; } else { - return TRUE; + return true; } } else if(Uart.state != STATE_START_OF_COMMUNICATION) { @@ -260,7 +263,7 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.byteCnt++; Uart.output[Uart.byteCnt] = 0xAA; Uart.byteCnt++; - return TRUE; + return true; }*/ } @@ -315,7 +318,7 @@ static RAMFUNC int OutOfNDecoding(int bit) } } - return FALSE; + return false; } //============================================================================= @@ -368,7 +371,7 @@ static RAMFUNC int ManchesterDecoding(int v) if(Demod.buff < 3) { Demod.buff++; - return FALSE; + return false; } if(Demod.state==DEMOD_UNSYNCD) { @@ -470,7 +473,7 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.len++; Demod.state = DEMOD_UNSYNCD; // error = 0x0f; - return TRUE; + return true; } else { Demod.state = DEMOD_ERROR_WAIT; @@ -554,7 +557,7 @@ static RAMFUNC int ManchesterDecoding(int v) } Demod.state = DEMOD_UNSYNCD; - return TRUE; + return true; } else { Demod.output[Demod.len] = 0xad; @@ -609,14 +612,14 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.len++; Demod.output[Demod.len] = 0xBB; Demod.len++; - return TRUE; + return true; } } } // end (state != UNSYNCED) - return FALSE; + return false; } //============================================================================= @@ -636,7 +639,7 @@ 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. - //int triggered = FALSE; // FALSE to wait first for card + //int triggered = false; // false to wait first for card // The command (reader -> tag) that we're receiving. // The length of a received command will in most cases be no more than 18 bytes. @@ -653,9 +656,9 @@ void RAMFUNC SnoopIClass(void) // The DMA buffer, used to stream samples from the FPGA uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE); - set_tracing(TRUE); + set_tracing(true); clear_trace(); - iso14a_set_trigger(FALSE); + iso14a_set_trigger(false); int lastRxCounter; uint8_t *upTo; @@ -673,7 +676,7 @@ void RAMFUNC SnoopIClass(void) Demod.state = DEMOD_UNSYNCD; // Setup for the DMA. - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_ISO14443A); upTo = dmaBuf; lastRxCounter = DMA_BUFFER_SIZE; FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE); @@ -746,14 +749,11 @@ void RAMFUNC SnoopIClass(void) 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(!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; + 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; @@ -776,11 +776,9 @@ void RAMFUNC SnoopIClass(void) 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); - } + 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)); @@ -827,7 +825,7 @@ void rotateCSN(uint8_t* originalCSN, uint8_t* rotatedCSN) { //----------------------------------------------------------------------------- // Wait for commands from reader // Stop when button is pressed -// Or return TRUE when command is captured +// Or return true when command is captured //----------------------------------------------------------------------------- static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) { @@ -845,7 +843,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) 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; @@ -855,7 +853,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) if(OutOfNDecoding(b & 0x0f)) { *len = Uart.byteCnt; - return TRUE; + return true; } } } @@ -990,7 +988,7 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // Enable and clear the trace - set_tracing(TRUE); + set_tracing(true); clear_trace(); //Use the emulator memory for SIM uint8_t *emulator = BigBuf_get_EM_addr(); @@ -1041,6 +1039,10 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain Dbprintf("Done..."); } +void AppendCrc(uint8_t* data, int len) +{ + ComputeCrc14443(CRC_ICLASS,data,len,data+len,data+len+1); +} /** * @brief Does the actual simulation @@ -1052,6 +1054,8 @@ 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} ; @@ -1068,12 +1072,20 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) 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; @@ -1085,7 +1097,7 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) // 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; @@ -1110,7 +1122,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) int resp_cc_len; uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE); - memset(receivedCmd, 0x44, MAX_FRAME_SIZE); int len; // Prepare card messages @@ -1132,8 +1143,12 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) 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 - uint8_t *data_response = BigBuf_malloc(8 * 2 + 2); + //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); @@ -1143,7 +1158,7 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) StartCountSspClk(); // We need to listen to the high-frequency, peak-detected path. SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_ISO14443A); // To control where we are in the protocol int cmdsRecvd = 0; @@ -1153,9 +1168,9 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) 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.. @@ -1197,25 +1212,18 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) } else if(receivedCmd[0] == ICLASS_CMD_CHECK) { // Reader random and reader MAC!!! if(simulationMode == MODE_FULLSIM) - { //This is what we must do.. - //Reader just sent us NR and MAC(k,cc * nr) - //The diversified key should be stored on block 3 - //However, from a typical dump, the key will not be there - uint8_t *diversified_key = { 0 }; - //Get the diversified key from emulator memory - memcpy(diversified_key, emulator+(8*3),8); - uint8_t ccnr[12] = { 0 }; - //Put our cc there (block 2) - memcpy(ccnr, emulator + (8 * 2), 8); - //Put nr there - memcpy(ccnr+8, receivedCmd+1,4); - //Now, calc MAC - doMAC(ccnr,diversified_key, trace_data); + { + //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 @@ -1246,12 +1254,39 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) } else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){ //Read block uint16_t blk = receivedCmd[1]; - trace_data = emulator+(blk << 3); - trace_data_size = 8; + //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 @@ -1278,26 +1313,22 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf) 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(); } - if (tracing) { - 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 (trace_data != NULL) { - 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) { - DbpString("Trace full"); - //break; - } + 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 (trace_data != NULL) { + 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(!get_tracing()) { + DbpString("Trace full"); + //break; } - memset(receivedCmd, 0x44, MAX_FRAME_SIZE); } //Dbprintf("%x", cmdsRecvd); @@ -1321,7 +1352,7 @@ static int SendIClassAnswer(uint8_t *resp, int respLen, int delay) FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K_8BIT); AT91C_BASE_SSC->SSC_THR = 0x00; - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_SIMULATOR); while(!BUTTON_PRESS()) { if((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){ b = AT91C_BASE_SSC->SSC_RHR; (void) b; @@ -1359,7 +1390,7 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int int c; FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD); AT91C_BASE_SSC->SSC_THR = 0x00; - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_ISO14443A); if (wait) { @@ -1381,7 +1412,7 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int uint8_t sendbyte; - bool firstpart = TRUE; + bool firstpart = true; c = 0; for(;;) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { @@ -1410,7 +1441,7 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int } WDT_HIT(); } - if (samples) *samples = (c + *wait) << 3; + if (samples && wait) *samples = (c + *wait) << 3; } @@ -1436,7 +1467,7 @@ void CodeIClassCommand(const uint8_t * cmd, int len) for(j = 0; j < 4; j++) { for(k = 0; k < 4; k++) { if(k == (b & 3)) { - ToSend[++ToSendMax] = 0x0f; + ToSend[++ToSendMax] = 0xf0; } else { ToSend[++ToSendMax] = 0x00; @@ -1470,17 +1501,15 @@ void ReaderTransmitIClass(uint8_t* frame, int len) 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); - } + uint8_t par[MAX_PARITY_SIZE]; + GetParity(frame, len, par); + LogTrace(frame, len, rsamples, rsamples, par, true); } //----------------------------------------------------------------------------- // Wait a certain time for tag response -// If a response is captured return TRUE -// If it takes too long return FALSE +// If a response is captured return true +// If it takes too long return false //----------------------------------------------------------------------------- static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, int *elapsed) //uint8_t *buffer { @@ -1499,27 +1528,27 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, uint8_t b; if (elapsed) *elapsed = 0; - bool skip = FALSE; + bool skip = false; c = 0; 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!! if (elapsed) (*elapsed)++; } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - if(c < timeout) { c++; } else { return FALSE; } + if(c < timeout) { c++; } else { return false; } b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; skip = !skip; if(skip) continue; if(ManchesterDecoding(b & 0x0f)) { *samples = c << 3; - return TRUE; + return true; } } } @@ -1528,14 +1557,12 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, int ReaderReceiveIClass(uint8_t* receivedAnswer) { int samples = 0; - if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return FALSE; + if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return false; rsamples += samples; - 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; + 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; } @@ -1543,11 +1570,11 @@ void setupIclassReader() { FpgaDownloadAndGo(FPGA_BITSTREAM_HF); // Reset trace buffer - set_tracing(TRUE); - clear_trace(); + set_tracing(true); + clear_trace(); // Setup SSC - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_HF_ISO14443A); // Start from off (no field generated) // Signal field is off with the appropriate LED LED_D_OFF(); @@ -1564,16 +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 } /** @@ -1583,12 +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; @@ -1618,79 +1651,132 @@ uint8_t handshakeIclassTag(uint8_t *card_data) //Flag that we got to at least stage 1, read CSN read_status = 1; - // Card selected, now read e-purse (cc) + // Card selected, now read e-purse (cc) (only 8 bytes no CRC) 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; + 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 last_csn[8]={0}; - - int read_status= 0; - bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE; - bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC; - set_tracing(TRUE); - setupIclassReader(); - - size_t datasize = 0; - while(!BUTTON_PRESS()) - { - - if(!tracing) { + uint8_t card_data[6 * 8]={0}; + memset(card_data, 0xFF, sizeof(card_data)); + uint8_t last_csn[8]={0,0,0,0,0,0,0,0}; + uint8_t resp[ICLASS_BUFFER_SIZE]; + memset(resp, 0xFF, sizeof(resp)); + //Read conf block CRC(0x01) => 0xfa 0x22 + uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22}; + //Read App Issuer Area 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; + // flag to read until one tag is found successfully + bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE; + // flag to only try 5 times to find one tag then return + bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY; + // if neither abort_after_read nor try_once then continue reading until button pressed. + + bool use_credit_key = arg0 & FLAG_ICLASS_READER_CEDITKEY; + // test flags for what blocks to be sure to read + uint8_t flagReadConfig = arg0 & FLAG_ICLASS_READER_CONF; + uint8_t flagReadCC = arg0 & FLAG_ICLASS_READER_CC; + uint8_t flagReadAA = arg0 & FLAG_ICLASS_READER_AA; + + set_tracing(true); + setupIclassReader(); + + uint16_t tryCnt=0; + bool userCancelled = BUTTON_PRESS() || usb_poll_validate_length(); + while(!userCancelled) + { + // if only looking for one card try 2 times if we missed it the first time + if (try_once && tryCnt > 2) break; + tryCnt++; + if(!get_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; + 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(flagReadConfig) { + if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf), resp, 10, 10)) + { + result_status |= FLAG_ICLASS_READER_CONF; + memcpy(card_data+8, resp, 8); + } else { + Dbprintf("Failed to dump config block"); + } + } - //Todo, read the public blocks 1,5 aswell: - // - // 0 : CSN (we already have) + //Read block 5, AA + if(flagReadAA) { + if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA), resp, 10, 10)) + { + result_status |= FLAG_ICLASS_READER_AA; + memcpy(card_data+(8*5), resp, 8); + } else { + //Dbprintf("Failed to dump AA block"); + } + } + + // 0 : CSN // 1 : Configuration - // 2 : e-purse (we already have) - // (3,4 write-only) + // 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, + //Then we can 'ship' back the 8 * 6 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 + //Send back to client, but don't bother if we already sent this - + // only useful if looping in arm (not try_once && not abort_after_read) 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 caller requires that we get Conf, CC, AA, continue until we got it + if( (result_status ^ FLAG_ICLASS_READER_CSN ^ flagReadConfig ^ flagReadCC ^ flagReadAA) == 0) { + cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data)); if(abort_after_read) { LED_A_OFF(); + LED_B_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(); + userCancelled = BUTTON_PRESS() || usb_poll_validate_length(); + } + if (userCancelled) { + cmd_send(CMD_ACK,0xFF,0,0,card_data, 0); + } else { + cmd_send(CMD_ACK,0,0,0,card_data, 0); + } + LED_A_OFF(); } void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { @@ -1724,13 +1810,13 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { uint8_t resp[ICLASS_BUFFER_SIZE]; setupIclassReader(); - set_tracing(TRUE); + set_tracing(true); while(!BUTTON_PRESS()) { WDT_HIT(); - if(!tracing) { + if(!get_tracing()) { DbpString("Trace full"); break; } @@ -1741,7 +1827,7 @@ 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; @@ -1753,7 +1839,7 @@ 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; @@ -1780,7 +1866,7 @@ 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], @@ -1831,130 +1917,137 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { LED_A_OFF(); } -//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; +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); +} - // 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_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; +} - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); +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); +} - // 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_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; - LED_A_ON(); + 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; + } + } + 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(); +} - for(int i=0;i<1;i++) { - - if(traceLen > TRACE_SIZE) { - DbpString("Trace full"); - break; +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, 0x00, 0x00 }; + //uint8_t readblockdata[10]; + //write[1] = blockNo; + memcpy(write+2, data, 12); // data + mac + char *wrCmd = (char *)(write+1); + uint16_t wrCrc = iclass_crc16(wrCmd, 13); + write[14] = wrCrc >> 8; + write[15] = wrCrc & 0xff; + uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0}; + bool isOK = false; + + isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10); + if (isOK) { //if reader responded correctly + //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)) { //if response is not equal to write values + if (blockNo != 3 && blockNo != 4) { //if not programming key areas (note key blocks don't get programmed with actual key data it is xor data) + //error try again + isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10); + } + } - - 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]); - }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; - } - }// + } + 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("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(); +}