X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3d2c9c9b066c5a0b6a8dab467d86561223ddac10..a66f26da182040ac798a7c629d255cb86803e9c2:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index daa44256..66238a10 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -860,6 +860,12 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { uint8_t *resp_cc = BigBuf_malloc(18); int resp_cc_len; + // Kd, Kc (blocks 3 and 4). Cannot be read. Always respond with 0xff bytes only + uint8_t *resp_ff = BigBuf_malloc(22); + int resp_ff_len; + uint8_t ff_data[10] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00}; + AppendCrc(ff_data, 8); + // Application Issuer Area (block 5) uint8_t *resp_aia = BigBuf_malloc(22); int resp_aia_len; @@ -897,14 +903,19 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax; + // Kd, Kc (blocks 3 and 4) + CodeIso15693AsTag(ff_data, sizeof(ff_data)); + memcpy(resp_ff, ToSend, ToSendMax); + resp_ff_len = ToSendMax; + // Application Issuer Area (block 5) CodeIso15693AsTag(aia_data, sizeof(aia_data)); memcpy(resp_aia, ToSend, ToSendMax); resp_aia_len = ToSendMax; //This is used for responding to READ-block commands or other data which is dynamically generated - uint8_t *data_generic_trace = BigBuf_malloc(8 + 2); // 8 bytes data + 2byte CRC is max tag answer - uint8_t *data_response = BigBuf_malloc( (8 + 2) * 2 + 2); + uint8_t *data_generic_trace = BigBuf_malloc(32 + 2); // 32 bytes data + 2byte CRC is max tag answer + uint8_t *data_response = BigBuf_malloc( (32 + 2) * 2 + 2); LED_A_ON(); bool buttonPressed = false; @@ -921,7 +932,7 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { buttonPressed = true; break; } - + //Signal tracer LED_C_ON(); @@ -931,6 +942,7 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { modulated_response_size = 0; trace_data = NULL; trace_data_size = 0; + if (receivedCmd[0] == ICLASS_CMD_ACTALL) { // Reader in anticollission phase modulated_response = resp_sof; @@ -944,12 +956,11 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { modulated_response_size = resp_anticoll_len; trace_data = anticoll_data; trace_data_size = sizeof(anticoll_data); - //DbpString("Reader requests anticollission CSN:"); - + } else if (receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4) { // read block uint16_t blockNo = receivedCmd[1]; - if (simulationMode != ICLASS_SIM_MODE_FULL) { - // provide defaults for blocks 0, 1, 2, 5 + if (simulationMode == ICLASS_SIM_MODE_EXIT_AFTER_MAC) { + // provide defaults for blocks 0 ... 5 switch (blockNo) { case 0: // csn (block 00) modulated_response = resp_csn; @@ -973,6 +984,13 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { memcpy(reader_mac_buf, card_challenge_data, 8); } break; + case 3: + case 4: // Kd, Kd, always respond with 0xff bytes + modulated_response = resp_ff; + modulated_response_size = resp_ff_len; + trace_data = ff_data; + trace_data_size = sizeof(ff_data); + break; case 5: // Application Issuer Area (block 05) modulated_response = resp_aia; modulated_response_size = resp_aia_len; @@ -981,15 +999,22 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { break; // default: don't respond } - } else { // use data from emulator memory - memcpy(data_generic_trace, emulator + (receivedCmd[1] << 3), 8); - AppendCrc(data_generic_trace, 8); - trace_data = data_generic_trace; - trace_data_size = 10; - CodeIso15693AsTag(trace_data, trace_data_size); - memcpy(data_response, ToSend, ToSendMax); - modulated_response = data_response; - modulated_response_size = ToSendMax; + } else if (simulationMode == ICLASS_SIM_MODE_FULL) { + if (blockNo == 3 || blockNo == 4) { // Kd, Kc, always respond with 0xff bytes + modulated_response = resp_ff; + modulated_response_size = resp_ff_len; + trace_data = ff_data; + trace_data_size = sizeof(ff_data); + } else { // use data from emulator memory + memcpy(data_generic_trace, emulator + (receivedCmd[1] << 3), 8); + AppendCrc(data_generic_trace, 8); + trace_data = data_generic_trace; + trace_data_size = 10; + CodeIso15693AsTag(trace_data, trace_data_size); + memcpy(data_response, ToSend, ToSendMax); + modulated_response = data_response; + modulated_response_size = ToSendMax; + } } } else if (receivedCmd[0] == ICLASS_CMD_SELECT) { @@ -1039,6 +1064,18 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { trace_data = NULL; trace_data_size = 0; + } else if (simulationMode == ICLASS_SIM_MODE_FULL && receivedCmd[0] == ICLASS_CMD_READ4 && len == 4) { // 0x06 + //Read block + //Take the data... + memcpy(data_generic_trace, emulator + (receivedCmd[1] << 3), 8 * 4); + AppendCrc(data_generic_trace, 8 * 4); + trace_data = data_generic_trace; + trace_data_size = 8 * 4 + 2; + CodeIso15693AsTag(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 == ICLASS_SIM_MODE_FULL) { // 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 @@ -1072,7 +1109,7 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) { } /** - A legit tag has about 330us delay between reader EOT and tag SOF. + A legit tag has about 311,5us delay between reader EOT and tag SOF. **/ if (modulated_response_size > 0) { uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM - DELAY_ARM_TO_READER_SIM; @@ -1112,7 +1149,7 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain // setup hardware for simulation: FpgaDownloadAndGo(FPGA_BITSTREAM_HF); SetAdcMuxFor(GPIO_MUXSEL_HIPKD); - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_NO_MODULATION); + FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_NO_MODULATION); FpgaSetupSsc(FPGA_MAJOR_MODE_HF_SIMULATOR); StartCountSspClk(); @@ -1150,8 +1187,8 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain datain[i*8+0], datain[i*8+1], datain[i*8+2], datain[i*8+3], datain[i*8+4], datain[i*8+5], datain[i*8+6], datain[i*8+7]); Dbprintf("NR,MAC: %02x %02x %02x %02x %02x %02x %02x %02x", - datain[i*8+ 8], datain[i*8+ 9], datain[i*8+10], datain[i*8+11], - datain[i*8+12], datain[i*8+13], datain[i*8+14], datain[i*8+15]); + datain[i*8+ 8], datain[i*8+ 9], datain[i*8+10], datain[i*8+11], + datain[i*8+12], datain[i*8+13], datain[i*8+14], datain[i*8+15]); } cmd_send(CMD_ACK, CMD_SIMULATE_TAG_ICLASS, i, 0, mac_responses, i*16); } else if (simType == ICLASS_SIM_MODE_FULL) { @@ -1319,10 +1356,10 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, 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;