X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/fecd8202a5ad638db4c1ba088842390e78ef52db..66707a3b3c59b7ac53231dda726b27389a9bfb70:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index 9971b670..0ee1b355 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -50,17 +50,6 @@ static int timeout = 4096; -// CARD TO READER -// Sequence D: 11110000 modulation with subcarrier during first half -// Sequence E: 00001111 modulation with subcarrier during second half -// Sequence F: 00000000 no modulation with subcarrier -// READER TO CARD -// Sequence X: 00001100 drop after half a period -// Sequence Y: 00000000 no drop -// Sequence Z: 11000000 drop at start -#define SEC_X 0x0c -#define SEC_Y 0x00 -#define SEC_Z 0xc0 static int SendIClassAnswer(uint8_t *resp, int respLen, int delay); @@ -668,12 +657,7 @@ static RAMFUNC int ManchesterDecoding(int v) //----------------------------------------------------------------------------- void RAMFUNC SnoopIClass(void) { -// DEFINED ABOVE -// #define RECV_CMD_OFFSET 3032 -// #define RECV_RES_OFFSET 3096 -// #define DMA_BUFFER_OFFSET 3160 -// #define DMA_BUFFER_SIZE 4096 -// #define TRACE_SIZE 3000 + // 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 @@ -683,14 +667,12 @@ void RAMFUNC SnoopIClass(void) // The command (reader -> tag) that we're receiving. // The length of a received command will in most cases be no more than 18 bytes. // So 32 should be enough! - uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); + uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); // The response (tag -> reader) that we're receiving. - uint8_t *receivedResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET); + uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET); - // As we receive stuff, we copy it from receivedCmd or receivedResponse - // into trace, along with its length and other annotations. - //uint8_t *trace = (uint8_t *)BigBuf; - + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + // reset traceLen to 0 iso14a_set_tracing(TRUE); iso14a_clear_trace(); @@ -708,10 +690,8 @@ void RAMFUNC SnoopIClass(void) int samples = 0; rsamples = 0; - memset(trace, 0x44, RECV_CMD_OFFSET); - // Set up the demodulator for tag -> reader responses. - Demod.output = receivedResponse; + Demod.output = tagToReaderResponse; Demod.len = 0; Demod.state = DEMOD_UNSYNCD; @@ -723,7 +703,7 @@ void RAMFUNC SnoopIClass(void) // And the reader -> tag commands memset(&Uart, 0, sizeof(Uart)); - Uart.output = receivedCmd; + Uart.output = readerToTagCmd; Uart.byteCntMax = 32; // was 100 (greg)//////////////////////////////////////////////////////////////////////// Uart.state = STATE_UNSYNCD; @@ -733,6 +713,9 @@ void RAMFUNC SnoopIClass(void) FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_SNIFFER); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + uint32_t time_0 = GetCountSspClk(); + + int div = 0; //int div2 = 0; int decbyte = 0; @@ -766,20 +749,13 @@ void RAMFUNC SnoopIClass(void) //samples += 4; samples += 1; - //div2++; - //if(div2 > 3) { - //div2 = 0; - //decbyte ^= ((smpl & 0x01) << (3 - div)); - //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1)) << (3 - div)); // better already... - //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1) | ((smpl & 0x04) >> 2)) << (3 - div)); // even better... if(smpl & 0xF) { decbyte ^= (1 << (3 - div)); } - //decbyte ^= (MajorityNibble[(smpl & 0x0F)] << (3 - div)); // FOR READER SIDE COMMUMICATION... - //decbyte ^= ((smpl & 0x10) << (3 - div)); + decbyter <<= 2; decbyter ^= (smpl & 0x30); @@ -790,21 +766,17 @@ void RAMFUNC SnoopIClass(void) if(OutOfNDecoding((smpl & 0xF0) >> 4)) { rsamples = samples - Uart.samples; LED_C_ON(); - //if(triggered) { - trace[traceLen++] = ((rsamples >> 0) & 0xff); - trace[traceLen++] = ((rsamples >> 8) & 0xff); - trace[traceLen++] = ((rsamples >> 16) & 0xff); - trace[traceLen++] = ((rsamples >> 24) & 0xff); - trace[traceLen++] = ((Uart.parityBits >> 0) & 0xff); - trace[traceLen++] = ((Uart.parityBits >> 8) & 0xff); - trace[traceLen++] = ((Uart.parityBits >> 16) & 0xff); - trace[traceLen++] = ((Uart.parityBits >> 24) & 0xff); - trace[traceLen++] = Uart.byteCnt; - memcpy(trace+traceLen, receivedCmd, Uart.byteCnt); - traceLen += Uart.byteCnt; - if(traceLen > TRACE_SIZE) break; - //} - /* And ready to receive another command. */ + + //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); + } + + + /* 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. */ @@ -821,26 +793,16 @@ void RAMFUNC SnoopIClass(void) rsamples = samples - Demod.samples; LED_B_ON(); - // timestamp, as a count of samples - trace[traceLen++] = ((rsamples >> 0) & 0xff); - trace[traceLen++] = ((rsamples >> 8) & 0xff); - trace[traceLen++] = ((rsamples >> 16) & 0xff); - trace[traceLen++] = 0x80 | ((rsamples >> 24) & 0xff); - trace[traceLen++] = ((Demod.parityBits >> 0) & 0xff); - trace[traceLen++] = ((Demod.parityBits >> 8) & 0xff); - trace[traceLen++] = ((Demod.parityBits >> 16) & 0xff); - trace[traceLen++] = ((Demod.parityBits >> 24) & 0xff); - // length - trace[traceLen++] = Demod.len; - memcpy(trace+traceLen, receivedResponse, Demod.len); - traceLen += Demod.len; - if(traceLen > TRACE_SIZE) break; - - //triggered = TRUE; + if(tracing) + { + LogTrace(Demod.output,Demod.len, (GetCountSspClk()-time_0) << 4 , Demod.parityBits,FALSE); + LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, FALSE); + } + // And ready to receive another response. memset(&Demod, 0, sizeof(Demod)); - Demod.output = receivedResponse; + Demod.output = tagToReaderResponse; Demod.state = DEMOD_UNSYNCD; LED_C_OFF(); } @@ -924,6 +886,8 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) //----------------------------------------------------------------------------- static void CodeIClassTagAnswer(const uint8_t *cmd, int len) { + //So far a dummy implementation, not used + //int lastProxToAirDuration =0; int i; ToSendReset(); @@ -932,7 +896,7 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len) ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0x00; - ToSend[++ToSendMax] = 0xff; + ToSend[++ToSendMax] = 0xff;//Proxtoair duration starts here ToSend[++ToSendMax] = 0xff; ToSend[++ToSendMax] = 0xff; ToSend[++ToSendMax] = 0x00; @@ -960,11 +924,13 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len) ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0xff; ToSend[++ToSendMax] = 0xff; - ToSend[++ToSendMax] = 0xff; + ToSend[++ToSendMax] = 0xff; ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0x00; + //lastProxToAirDuration = 8*ToSendMax - 3*8 - 3*8;//Not counting zeroes in the beginning or end + // Convert from last byte pos to length ToSendMax++; } @@ -972,8 +938,10 @@ static void CodeIClassTagAnswer(const uint8_t *cmd, int len) // Only SOF static void CodeIClassTagSOF() { - ToSendReset(); + //So far a dummy implementation, not used + //int lastProxToAirDuration =0; + ToSendReset(); // Send SOF ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0x00; @@ -983,37 +951,92 @@ static void CodeIClassTagSOF() ToSend[++ToSendMax] = 0xff; ToSend[++ToSendMax] = 0x00; ToSend[++ToSendMax] = 0xff; + +// lastProxToAirDuration = 8*ToSendMax - 3*8;//Not counting zeroes in the beginning + // Convert from last byte pos to length ToSendMax++; } +int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf); +/** + * @brief SimulateIClass simulates an iClass card. + * @param arg0 type of simulation + * - 0 uses the first 8 bytes in usb data as CSN + * - 2 "dismantling iclass"-attack. This mode iterates through all CSN's specified + * in the usb data. This mode collects MAC from the reader, in order to do an offline + * attack on the keys. For more info, see "dismantling iclass" and proxclone.com. + * - Other : Uses the default CSN (031fec8af7ff12e0) + * @param arg1 - number of CSN's contained in datain (applicable for mode 2 only) + * @param arg2 + * @param datain + */ +void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain) +{ + uint32_t simType = arg0; + uint32_t numberOfCSNS = arg1; + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); -//----------------------------------------------------------------------------- -// Simulate iClass Card -// Only CSN (Card Serial Number) -// -//----------------------------------------------------------------------------- -void SimulateIClass(uint8_t arg0, uint8_t *datain) + // Enable and clear the trace + iso14a_set_tracing(TRUE); + iso14a_clear_trace(); + + 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); + }else if(simType == 1) + { + doIClassSimulation(csn_crc,0,NULL); + } + else if(simType == 2) + { + + uint8_t mac_responses[64] = { 0 }; + Dbprintf("Going into attack mode"); + // 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. + int i = 0; + for( ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++) + { + // 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)) + { + return; // Button pressed + } + } + cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8); + + } + else{ + // We may want a mode here where we hardcode the csns to use (from proxclone). + // That will speed things up a little, but not required just yet. + Dbprintf("The mode is not implemented, reserved for future use"); + } + Dbprintf("Done..."); + +} +/** + * @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) { - uint8_t simType = arg0; - // Enable and clear the trace - tracing = TRUE; - traceLen = 0; - memset(trace, 0x44, TRACE_SIZE); // CSN followed by two CRC bytes uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 }; - + uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0}; + memcpy(response3,csn,sizeof(response3)); + 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 }; - if(simType == 0) { - // Use the CSN from commandline - memcpy(response3, datain, 8); - } - // Construct anticollision-CSN rotateCSN(response3,response2); @@ -1021,6 +1044,7 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]); ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]); + int exitLoop = 0; // Reader 0a // Tag 0f // Reader 0c @@ -1054,7 +1078,7 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) int resp4Len; // + 1720.. - uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); + uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); memset(receivedCmd, 0x44, RECV_CMD_SIZE); int len; @@ -1077,29 +1101,52 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) CodeIClassTagAnswer(response4, sizeof(response4)); memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax; + + // Start from off (no field generated) + //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + //SpinDelay(200); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN); + SpinDelay(100); + StartCountSspClk(); // We need to listen to the high-frequency, peak-detected path. SetAdcMuxFor(GPIO_MUXSEL_HIPKD); FpgaSetupSsc(); // To control where we are in the protocol int cmdsRecvd = 0; + uint32_t time_0 = GetCountSspClk(); + uint32_t t2r_time =0; + uint32_t r2t_time =0; LED_A_ON(); - for(;;) { + bool buttonPressed = false; + + /** Hack for testing + memcpy(reader_mac_buf,csn,8); + exitLoop = true; + end hack **/ + + while(!exitLoop) { + LED_B_OFF(); + //Signal tracer + // Can be used to get a trigger for an oscilloscope.. + LED_C_OFF(); + if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) { - DbpString("button press"); + buttonPressed = true; break; } + r2t_time = GetCountSspClk(); + //Signal tracer + LED_C_ON(); // Okay, look at the command now. - if(receivedCmd[0] == 0x0a) { + if(receivedCmd[0] == 0x0a ) { // Reader in anticollission phase resp = resp1; respLen = resp1Len; //order = 1; respdata = &sof; respsize = sizeof(sof); - //resp = resp2; respLen = resp2Len; order = 2; - //DbpString("Hello request from reader:"); } else if(receivedCmd[0] == 0x0c) { // Reader asks for anticollission CSN resp = resp2; respLen = resp2Len; //order = 2; @@ -1121,30 +1168,31 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) LED_B_ON(); } else if(receivedCmd[0] == 0x05) { // Reader random and reader MAC!!! - // Lets store this ;-) -/* - Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x", - response3[0], response3[1], response3[2], - response3[3], response3[4], response3[5], - response3[6], response3[7]); -*/ - Dbprintf("READER AUTH (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x", - len, - receivedCmd[0], receivedCmd[1], receivedCmd[2], - receivedCmd[3], receivedCmd[4], receivedCmd[5], - receivedCmd[6], receivedCmd[7], receivedCmd[8]); - // Do not respond - // We do not know what to answer, so lets keep quit + // We do not know what to answer, so lets keep quiet resp = resp1; respLen = 0; //order = 5; respdata = NULL; 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("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len, + receivedCmd[0], receivedCmd[1], receivedCmd[2], + receivedCmd[3], receivedCmd[4], receivedCmd[5], + receivedCmd[6], receivedCmd[7], receivedCmd[8]); + if (reader_mac_buf != NULL) + { + memcpy(reader_mac_buf,receivedCmd+1,8); + } + exitLoop = true; + } } else if(receivedCmd[0] == 0x00 && len == 1) { // Reader ends the session resp = resp1; respLen = 0; //order = 0; respdata = NULL; respsize = 0; } 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", len, @@ -1157,9 +1205,9 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) respsize = 0; } - if(cmdsRecvd > 999) { - DbpString("1000 commands later..."); - break; + if(cmdsRecvd > 100) { + //DbpString("100 commands later..."); + //break; } else { cmdsRecvd++; @@ -1167,64 +1215,68 @@ void SimulateIClass(uint8_t arg0, uint8_t *datain) if(respLen > 0) { SendIClassAnswer(resp, respLen, 21); + t2r_time = GetCountSspClk(); } - + if (tracing) { - LogTrace(receivedCmd,len, rsamples, Uart.parityBits, TRUE); + LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE); + LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE); + if (respdata != NULL) { - LogTrace(respdata,respsize, rsamples, SwapBits(GetParity(respdata,respsize),respsize), FALSE); + LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE); + LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE); + + } - if(traceLen > TRACE_SIZE) { + if(!tracing) { DbpString("Trace full"); - break; + //break; } - } + } memset(receivedCmd, 0x44, RECV_CMD_SIZE); } - Dbprintf("%x", cmdsRecvd); + //Dbprintf("%x", cmdsRecvd); LED_A_OFF(); LED_B_OFF(); + if(buttonPressed) + { + DbpString("Button pressed"); + } + return buttonPressed; } static int SendIClassAnswer(uint8_t *resp, int respLen, int delay) { - int i = 0, u = 0, d = 0; + int i = 0, d=0;//, u = 0, d = 0; uint8_t b = 0; - // return 0; - // Modulate Manchester - // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD424); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD); + + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K); + AT91C_BASE_SSC->SSC_THR = 0x00; FpgaSetupSsc(); - - // send cycle - for(;;) { - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { - volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; - (void)b; + while(!BUTTON_PRESS()) { + if((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){ + b = AT91C_BASE_SSC->SSC_RHR; (void) b; } - if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)){ + b = 0x00; if(d < delay) { - b = 0x00; d++; } - else if(i >= respLen) { - b = 0x00; - u++; - } else { - b = resp[i]; - u++; - if(u > 1) { i++; u = 0; } + else { + if( i < respLen){ + b = resp[i]; + //Hack + //b = 0xAC; + } + i++; } AT91C_BASE_SSC->SSC_THR = b; - - if(u > 4) break; - } - if(BUTTON_PRESS()) { - break; } + + if (i > respLen +4) break; } return 0; @@ -1238,26 +1290,28 @@ 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; + { + 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; @@ -1314,12 +1368,12 @@ void CodeIClassCommand(const uint8_t * cmd, int len) b = cmd[i]; for(j = 0; j < 4; j++) { for(k = 0; k < 4; k++) { - if(k == (b & 3)) { - ToSend[++ToSendMax] = 0x0f; - } - else { - ToSend[++ToSendMax] = 0x00; - } + if(k == (b & 3)) { + ToSend[++ToSendMax] = 0x0f; + } + else { + ToSend[++ToSendMax] = 0x00; + } } b >>= 2; } @@ -1415,67 +1469,109 @@ int ReaderReceiveIClass(uint8_t* receivedAnswer) return Demod.len; } -// 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 }; +void setupIclassReader() +{ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + // Reset trace buffer + iso14a_set_tracing(TRUE); + iso14a_clear_trace(); - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + // 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); - // Reset trace buffer - memset(trace, 0x44, RECV_CMD_OFFSET); - traceLen = 0; + SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - // 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); + // 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); + LED_A_ON(); - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); +} - // 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); +// 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 }; - LED_A_ON(); + uint8_t card_data[24]={0}; + uint8_t last_csn[8]={0}; - for(;;) { - - if(traceLen > TRACE_SIZE) { - DbpString("Trace full"); - break; - } - - if (BUTTON_PRESS()) break; + uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes - // 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)); + int read_status= 0; + bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE; - 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, whats next... ;-) - } - } - WDT_HIT(); - } - - LED_A_OFF(); + 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; + } + } + LED_A_OFF(); } void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { @@ -1501,26 +1597,8 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes - // 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); - - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - - // 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); + setupIclassReader(); - LED_A_ON(); for(int i=0;i<1;i++) { @@ -1559,8 +1637,8 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { 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]); + //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", @@ -1621,103 +1699,6 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { LED_A_OFF(); } -//1. Create Method to Read sectors/blocks 0,1,2 and Send to client -void IClass_iso14443A_GetPublic(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 read[] = { 0x0c, 0x00, 0x00, 0x00 }; - uint8_t card_data[24]={0}; - - //bool read_success=false; - uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes - - // 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); - - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - - // 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); - - LED_A_ON(); - - for(int i=0;i<1;i++) { - - if(traceLen > TRACE_SIZE) { - DbpString("Trace full"); - 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]); - } - memcpy(card_data,resp,8); - // 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]); - } - memcpy(card_data+8,resp,8); - //prep to read config block - /* read card configuration block - while(!read_success){ - uint8_t sector_config=0x01; - memcpy(read+1,§or_config,1); - ReaderTransmitIClass(read, sizeof(read)); - 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]); - read_success=true; - memcpy(card_data+16,resp,8); - } - }*/ - } - } - WDT_HIT(); - } - //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[0],card_data[1],card_data[2],card_data[3],card_data[4],card_data[5],card_data[6],card_data[7]); - //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[8],card_data[9],card_data[10],card_data[11],card_data[12],card_data[13],card_data[14],card_data[15]); - LED_A_OFF(); - LED_B_ON(); - //send data back to the client - cmd_send(CMD_ACK,0,0,0,card_data,16); - LED_B_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