X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0e25ae11020aab8bc3e7b2dd9819f356fed00792..5fc8250f7f76db055d4592b1ca3d691dccda6398:/armsrc/iso14443.c diff --git a/armsrc/iso14443.c b/armsrc/iso14443.c index 311254d9..fab7336b 100644 --- a/armsrc/iso14443.c +++ b/armsrc/iso14443.c @@ -295,11 +295,11 @@ static BOOL GetIso14443CommandFromReader(BYTE *received, int *len, int maxLen) if(BUTTON_PRESS()) return FALSE; - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0x00; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0x00; } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - BYTE b = (BYTE)SSC_RECEIVE_HOLDING; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + BYTE b = (BYTE)AT91C_BASE_SSC->SSC_RHR; mask = 0x80; for(i = 0; i < 8; i++, mask >>= 1) { @@ -392,24 +392,24 @@ void SimulateIso14443Tag(void) LED_D_OFF(); FpgaWriteConfWord( FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_MODULATE_BPSK); - SSC_TRANSMIT_HOLDING = 0xff; + AT91C_BASE_SSC->SSC_THR = 0xff; FpgaSetupSsc(); // Transmit the response. i = 0; for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { BYTE b = resp[i]; - SSC_TRANSMIT_HOLDING = b; + AT91C_BASE_SSC->SSC_THR = b; i++; if(i > respLen) { break; } } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - volatile BYTE b = (BYTE)SSC_RECEIVE_HOLDING; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + volatile BYTE b = (BYTE)AT91C_BASE_SSC->SSC_RHR; (void)b; } } @@ -454,7 +454,7 @@ static struct { * * Returns: true if we received a EOF * false if we are still waiting for some more - * + * */ static BOOL Handle14443SamplesDemod(int ci, int cq) { @@ -612,7 +612,7 @@ static BOOL Handle14443SamplesDemod(int ci, int cq) * Demodulate the samples we received from the tag * weTx: set to 'TRUE' if we behave like a reader * set to 'FALSE' if we behave like a snooper - * quiet: set to 'TRUE' to disable debug output + * quiet: set to 'TRUE' to disable debug output */ static void GetSamplesFor14443Demod(BOOL weTx, int n, BOOL quiet) { @@ -654,10 +654,10 @@ static void GetSamplesFor14443Demod(BOOL weTx, int n, BOOL quiet) (weTx ? 0 : FPGA_HF_READER_RX_XCORR_SNOOP)); for(;;) { - int behindBy = lastRxCounter - PDC_RX_COUNTER(SSC_BASE); + int behindBy = lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR; if(behindBy > max) max = behindBy; - while(((lastRxCounter-PDC_RX_COUNTER(SSC_BASE)) & (DMA_BUFFER_SIZE-1)) + while(((lastRxCounter-AT91C_BASE_PDC_SSC->PDC_RCR) & (DMA_BUFFER_SIZE-1)) > 2) { ci = upTo[0]; @@ -665,8 +665,8 @@ static void GetSamplesFor14443Demod(BOOL weTx, int n, BOOL quiet) upTo += 2; if(upTo - dmaBuf > DMA_BUFFER_SIZE) { upTo -= DMA_BUFFER_SIZE; - PDC_RX_NEXT_POINTER(SSC_BASE) = (DWORD)upTo; - PDC_RX_NEXT_COUNTER(SSC_BASE) = DMA_BUFFER_SIZE; + AT91C_BASE_PDC_SSC->PDC_RNPR = (DWORD)upTo; + AT91C_BASE_PDC_SSC->PDC_RNCR = DMA_BUFFER_SIZE; } lastRxCounter -= 2; if(lastRxCounter <= 0) { @@ -687,7 +687,7 @@ static void GetSamplesFor14443Demod(BOOL weTx, int n, BOOL quiet) break; } } - PDC_CONTROL(SSC_BASE) = PDC_RX_DISABLE; + AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS; if (!quiet) DbpIntegers(max, gotFrame, Demod.len); } @@ -707,12 +707,12 @@ static void GetSamplesFor14443Demod(BOOL weTx, int n, BOOL quiet) c = 0; for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0x43; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0x43; } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { SBYTE b; - b = (SBYTE)SSC_RECEIVE_HOLDING; + b = (SBYTE)AT91C_BASE_SSC->SSC_RHR; dest[c++] = (BYTE)b; @@ -732,8 +732,8 @@ static void TransmitFor14443(void) FpgaSetupSsc(); - while(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0xff; + while(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0xff; } // Signal field is ON with the appropriate Red LED @@ -744,12 +744,12 @@ static void TransmitFor14443(void) FPGA_MAJOR_MODE_HF_READER_TX | FPGA_HF_READER_TX_SHALLOW_MOD); for(c = 0; c < 10;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0xff; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = 0xff; c++; } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - volatile DWORD r = SSC_RECEIVE_HOLDING; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + volatile DWORD r = AT91C_BASE_SSC->SSC_RHR; (void)r; } WDT_HIT(); @@ -757,15 +757,15 @@ static void TransmitFor14443(void) c = 0; for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = ToSend[c]; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) { + AT91C_BASE_SSC->SSC_THR = ToSend[c]; c++; if(c >= ToSendMax) { break; } } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - volatile DWORD r = SSC_RECEIVE_HOLDING; + if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { + volatile DWORD r = AT91C_BASE_SSC->SSC_RHR; (void)r; } WDT_HIT(); @@ -831,8 +831,8 @@ void CodeIso14443bAsReader(const BYTE *cmd, int len) //----------------------------------------------------------------------------- // Read an ISO 14443 tag. We send it some set of commands, and record the -// responses. -// The command name is misleading, it actually decodes the reponse in HEX +// responses. +// The command name is misleading, it actually decodes the reponse in HEX // into the output buffer (read the result using hexsamples, not hisamples) //----------------------------------------------------------------------------- void AcquireRawAdcSamplesIso14443(DWORD parameter) @@ -861,19 +861,19 @@ void AcquireRawAdcSamplesIso14443(DWORD parameter) GetSamplesFor14443Demod(TRUE, 2000, FALSE); // LED_A_OFF(); } - + //----------------------------------------------------------------------------- // Read a SRI512 ISO 14443 tag. -// -// SRI512 tags are just simple memory tags, here we're looking at making a dump -// of the contents of the memory. No anticollision algorithm is done, we assume -// we have a single tag in the field. -// +// +// SRI512 tags are just simple memory tags, here we're looking at making a dump +// of the contents of the memory. No anticollision algorithm is done, we assume +// we have a single tag in the field. +// // I tried to be systematic and check every answer of the tag, every CRC, etc... //----------------------------------------------------------------------------- void ReadSRI512Iso14443(DWORD parameter) { - BYTE i = 0x00; + BYTE i = 0x00; // Make sure that we start from off, since the tags are stateful; // confusing things will happen if we don't reset them between reads. @@ -890,7 +890,7 @@ void ReadSRI512Iso14443(DWORD parameter) FpgaWriteConfWord( FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ); SpinDelay(200); - + // First command: wake up the tag using the INITIATE command BYTE cmd1[] = { 0x06, 0x00, 0x97, 0x5b}; CodeIso14443bAsReader(cmd1, sizeof(cmd1)); @@ -898,102 +898,102 @@ void ReadSRI512Iso14443(DWORD parameter) // LED_A_ON(); GetSamplesFor14443Demod(TRUE, 2000,TRUE); // LED_A_OFF(); - - if (Demod.len == 0) { - DbpString("No response from tag"); - return; - } else { - DbpString("Randomly generated UID from tag (+ 2 byte CRC):"); - DbpIntegers(Demod.output[0], Demod.output[1],Demod.output[2]); - } - // There is a response, SELECT the uid - DbpString("Now SELECT tag:"); - cmd1[0] = 0x0E; // 0x0E is SELECT - cmd1[1] = Demod.output[0]; + + if (Demod.len == 0) { + DbpString("No response from tag"); + return; + } else { + DbpString("Randomly generated UID from tag (+ 2 byte CRC):"); + DbpIntegers(Demod.output[0], Demod.output[1],Demod.output[2]); + } + // There is a response, SELECT the uid + DbpString("Now SELECT tag:"); + cmd1[0] = 0x0E; // 0x0E is SELECT + cmd1[1] = Demod.output[0]; ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]); CodeIso14443bAsReader(cmd1, sizeof(cmd1)); TransmitFor14443(); // LED_A_ON(); GetSamplesFor14443Demod(TRUE, 2000,TRUE); // LED_A_OFF(); - if (Demod.len != 3) { - DbpString("Expected 3 bytes from tag, got:"); - DbpIntegers(Demod.len,0x0,0x0); - return; - } - // Check the CRC of the answer: + if (Demod.len != 3) { + DbpString("Expected 3 bytes from tag, got:"); + DbpIntegers(Demod.len,0x0,0x0); + return; + } + // Check the CRC of the answer: ComputeCrc14443(CRC_14443_B, Demod.output, 1 , &cmd1[2], &cmd1[3]); if(cmd1[2] != Demod.output[1] || cmd1[3] != Demod.output[2]) { - DbpString("CRC Error reading select response."); - return; - } - // Check response from the tag: should be the same UID as the command we just sent: - if (cmd1[1] != Demod.output[0]) { - DbpString("Bad response to SELECT from Tag, aborting:"); - DbpIntegers(cmd1[1],Demod.output[0],0x0); - return; - } - // Tag is now selected, - // First get the tag's UID: - cmd1[0] = 0x0B; - ComputeCrc14443(CRC_14443_B, cmd1, 1 , &cmd1[1], &cmd1[2]); + DbpString("CRC Error reading select response."); + return; + } + // Check response from the tag: should be the same UID as the command we just sent: + if (cmd1[1] != Demod.output[0]) { + DbpString("Bad response to SELECT from Tag, aborting:"); + DbpIntegers(cmd1[1],Demod.output[0],0x0); + return; + } + // Tag is now selected, + // First get the tag's UID: + cmd1[0] = 0x0B; + ComputeCrc14443(CRC_14443_B, cmd1, 1 , &cmd1[1], &cmd1[2]); CodeIso14443bAsReader(cmd1, 3); // Only first three bytes for this one TransmitFor14443(); // LED_A_ON(); GetSamplesFor14443Demod(TRUE, 2000,TRUE); // LED_A_OFF(); - if (Demod.len != 10) { - DbpString("Expected 10 bytes from tag, got:"); - DbpIntegers(Demod.len,0x0,0x0); - return; - } - // The check the CRC of the answer (use cmd1 as temporary variable): + if (Demod.len != 10) { + DbpString("Expected 10 bytes from tag, got:"); + DbpIntegers(Demod.len,0x0,0x0); + return; + } + // The check the CRC of the answer (use cmd1 as temporary variable): ComputeCrc14443(CRC_14443_B, Demod.output, 8, &cmd1[2], &cmd1[3]); if(cmd1[2] != Demod.output[8] || cmd1[3] != Demod.output[9]) { - DbpString("CRC Error reading block! - Below: expected, got"); - DbpIntegers( (cmd1[2]<<8)+cmd1[3], (Demod.output[8]<<8)+Demod.output[9],0); - // Do not return;, let's go on... (we should retry, maybe ?) - } - DbpString("Tag UID (64 bits):"); - DbpIntegers((Demod.output[7]<<24) + (Demod.output[6]<<16) + (Demod.output[5]<<8) + Demod.output[4], (Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0], 0); - - // Now loop to read all 16 blocks, address from 0 to 15 - DbpString("Tag memory dump, block 0 to 15"); - cmd1[0] = 0x08; - i = 0x00; - for (;;) { - if (i == 0x10) { - DbpString("System area block (0xff):"); - i = 0xff; - } - cmd1[1] = i; + DbpString("CRC Error reading block! - Below: expected, got"); + DbpIntegers( (cmd1[2]<<8)+cmd1[3], (Demod.output[8]<<8)+Demod.output[9],0); + // Do not return;, let's go on... (we should retry, maybe ?) + } + DbpString("Tag UID (64 bits):"); + DbpIntegers((Demod.output[7]<<24) + (Demod.output[6]<<16) + (Demod.output[5]<<8) + Demod.output[4], (Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0], 0); + + // Now loop to read all 16 blocks, address from 0 to 15 + DbpString("Tag memory dump, block 0 to 15"); + cmd1[0] = 0x08; + i = 0x00; + for (;;) { + if (i == 0x10) { + DbpString("System area block (0xff):"); + i = 0xff; + } + cmd1[1] = i; ComputeCrc14443(CRC_14443_B, cmd1, 2, &cmd1[2], &cmd1[3]); CodeIso14443bAsReader(cmd1, sizeof(cmd1)); TransmitFor14443(); // LED_A_ON(); GetSamplesFor14443Demod(TRUE, 2000,TRUE); -// LED_A_OFF(); - if (Demod.len != 6) { // Check if we got an answer from the tag - DbpString("Expected 6 bytes from tag, got less..."); - return; - } - // The check the CRC of the answer (use cmd1 as temporary variable): +// LED_A_OFF(); + if (Demod.len != 6) { // Check if we got an answer from the tag + DbpString("Expected 6 bytes from tag, got less..."); + return; + } + // The check the CRC of the answer (use cmd1 as temporary variable): ComputeCrc14443(CRC_14443_B, Demod.output, 4, &cmd1[2], &cmd1[3]); if(cmd1[2] != Demod.output[4] || cmd1[3] != Demod.output[5]) { - DbpString("CRC Error reading block! - Below: expected, got"); - DbpIntegers( (cmd1[2]<<8)+cmd1[3], (Demod.output[4]<<8)+Demod.output[5],0); - // Do not return;, let's go on... (we should retry, maybe ?) - } - // Now print out the memory location: - DbpString("Address , Contents, CRC"); - DbpIntegers(i, (Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0], (Demod.output[4]<<8)+Demod.output[5]); - if (i == 0xff) { - break; - } - i++; - } + DbpString("CRC Error reading block! - Below: expected, got"); + DbpIntegers( (cmd1[2]<<8)+cmd1[3], (Demod.output[4]<<8)+Demod.output[5],0); + // Do not return;, let's go on... (we should retry, maybe ?) + } + // Now print out the memory location: + DbpString("Address , Contents, CRC"); + DbpIntegers(i, (Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0], (Demod.output[4]<<8)+Demod.output[5]); + if (i == 0xff) { + break; + } + i++; + } } - + //============================================================================= // Finally, the `sniffer' combines elements from both the reader and @@ -1010,7 +1010,7 @@ void ReadSRI512Iso14443(DWORD parameter) * 0-1023 : Demodulated samples receive (1024 bytes) * 1024-1535 : Last Received command, 512 bytes (reader->tag) * 1536-2047 : Last Received command, 512 bytes(tag->reader) - * 2048-2304 : DMA Buffer, 256 bytes (samples) + * 2048-2304 : DMA Buffer, 256 bytes (samples) */ void SnoopIso14443(void) { @@ -1069,7 +1069,7 @@ void SnoopIso14443(void) FpgaSetupSscDma((BYTE *)dmaBuf, DMA_BUFFER_SIZE); // And now we loop, receiving samples. for(;;) { - int behindBy = (lastRxCounter - PDC_RX_COUNTER(SSC_BASE)) & + int behindBy = (lastRxCounter - AT91C_BASE_PDC_SSC->PDC_RCR) & (DMA_BUFFER_SIZE-1); if(behindBy > maxBehindBy) { maxBehindBy = behindBy; @@ -1088,8 +1088,8 @@ void SnoopIso14443(void) if(upTo - dmaBuf > DMA_BUFFER_SIZE) { upTo -= DMA_BUFFER_SIZE; lastRxCounter += DMA_BUFFER_SIZE; - PDC_RX_NEXT_POINTER(SSC_BASE) = (DWORD) upTo; - PDC_RX_NEXT_COUNTER(SSC_BASE) = DMA_BUFFER_SIZE; + AT91C_BASE_PDC_SSC->PDC_RNPR = (DWORD) upTo; + AT91C_BASE_PDC_SSC->PDC_RNCR = DMA_BUFFER_SIZE; } samples += 2; @@ -1169,5 +1169,5 @@ void SnoopIso14443(void) done: LED_D_OFF(); - PDC_CONTROL(SSC_BASE) = PDC_RX_DISABLE; + AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTDIS; }