X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/fa541aca9602e1629ab6d57238e3abc89c9b4ac3..cb8c358f4d31fdc7a388136c7036d57ec431c7ca:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index 117e4035..aca2c918 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -36,15 +36,19 @@ // //----------------------------------------------------------------------------- -#include "proxmark3.h" +#include "../include/proxmark3.h" #include "apps.h" #include "util.h" #include "string.h" #include "common.h" +#include "cmd.h" // Needed for CRC in emulation mode; // same construction as in ISO 14443; // different initial value (CRC_ICLASS) -#include "iso14443crc.h" +#include "../common/iso14443crc.h" +#include "../common/iso15693tools.h" +//#include "iso15693tools.h" + static int timeout = 4096; @@ -69,14 +73,13 @@ static struct { int nOutOfCnt; int OutOfCnt; int syncBit; - int parityBits; int samples; int highCnt; int swapper; int counter; int bitBuffer; int dropPosition; - uint8_t *output; + uint8_t *output; } Uart; static RAMFUNC int OutOfNDecoding(int bit) @@ -135,11 +138,8 @@ static RAMFUNC int OutOfNDecoding(int bit) if(Uart.byteCnt == 0) { // Its not straightforward to show single EOFs // So just leave it and do not return TRUE - Uart.output[Uart.byteCnt] = 0xf0; + Uart.output[0] = 0xf0; Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits = 1; } else { return TRUE; @@ -221,11 +221,6 @@ static RAMFUNC int OutOfNDecoding(int bit) if(Uart.bitCnt == 8) { Uart.output[Uart.byteCnt] = (Uart.shiftReg & 0xff); Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits <<= 1; - Uart.parityBits ^= OddByteParity[(Uart.shiftReg & 0xff)]; - Uart.bitCnt = 0; Uart.shiftReg = 0; } @@ -244,11 +239,6 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.dropPosition--; Uart.output[Uart.byteCnt] = (Uart.dropPosition & 0xff); Uart.byteCnt++; - - // Calculate the parity bit for the client... - Uart.parityBits <<= 1; - Uart.parityBits ^= OddByteParity[(Uart.dropPosition & 0xff)]; - Uart.bitCnt = 0; Uart.shiftReg = 0; Uart.nOutOfCnt = 0; @@ -309,7 +299,6 @@ static RAMFUNC int OutOfNDecoding(int bit) Uart.state = STATE_START_OF_COMMUNICATION; Uart.bitCnt = 0; Uart.byteCnt = 0; - Uart.parityBits = 0; Uart.nOutOfCnt = 0; Uart.OutOfCnt = 4; // Start at 1/4, could switch to 1/256 Uart.dropPosition = 0; @@ -351,7 +340,6 @@ static struct { int bitCount; int posCount; int syncBit; - int parityBits; uint16_t shiftReg; int buffer; int buffer2; @@ -418,7 +406,6 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.sub = SUB_FIRST_HALF; Demod.bitCount = 0; Demod.shiftReg = 0; - Demod.parityBits = 0; Demod.samples = 0; if(Demod.posCount) { //if(trigger) LED_A_OFF(); // Not useful in this case... @@ -448,8 +435,7 @@ static RAMFUNC int ManchesterDecoding(int v) else { modulation = bit & Demod.syncBit; modulation |= ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit; - //modulation = ((bit << 1) ^ ((Demod.buffer & 0x08) >> 3)) & Demod.syncBit; - + Demod.samples += 4; if(Demod.posCount==0) { @@ -483,8 +469,6 @@ static RAMFUNC int ManchesterDecoding(int v) if(Demod.state == DEMOD_SOF_COMPLETE) { Demod.output[Demod.len] = 0x0f; Demod.len++; - Demod.parityBits <<= 1; - Demod.parityBits ^= OddByteParity[0x0f]; Demod.state = DEMOD_UNSYNCD; // error = 0x0f; return TRUE; @@ -565,11 +549,9 @@ static RAMFUNC int ManchesterDecoding(int v) // Tag response does not need to be a complete byte! if(Demod.len > 0 || Demod.bitCount > 0) { if(Demod.bitCount > 1) { // was > 0, do not interpret last closing bit, is part of EOF - Demod.shiftReg >>= (9 - Demod.bitCount); + Demod.shiftReg >>= (9 - Demod.bitCount); // right align data Demod.output[Demod.len] = Demod.shiftReg & 0xff; Demod.len++; - // No parity bit, so just shift a 0 - Demod.parityBits <<= 1; } Demod.state = DEMOD_UNSYNCD; @@ -606,11 +588,6 @@ static RAMFUNC int ManchesterDecoding(int v) Demod.shiftReg >>= 1; Demod.output[Demod.len] = (Demod.shiftReg & 0xff); Demod.len++; - - // FOR ISO15639 PARITY NOT SEND OTA, JUST CALCULATE IT FOR THE CLIENT - Demod.parityBits <<= 1; - Demod.parityBits ^= OddByteParity[(Demod.shiftReg & 0xff)]; - Demod.bitCount = 0; Demod.shiftReg = 0; } @@ -667,8 +644,10 @@ void RAMFUNC SnoopIClass(void) // So 32 should be enough! uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); // The response (tag -> reader) that we're receiving. - uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET); + uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + // reset traceLen to 0 iso14a_set_tracing(TRUE); iso14a_clear_trace(); @@ -765,10 +744,10 @@ void RAMFUNC SnoopIClass(void) //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); + if(tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Uart.output, Uart.byteCnt, parity); + LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, TRUE); } @@ -789,10 +768,10 @@ void RAMFUNC SnoopIClass(void) rsamples = samples - Demod.samples; LED_B_ON(); - if(tracing) - { - LogTrace(Demod.output,Demod.len, (GetCountSspClk()-time_0) << 4 , Demod.parityBits,FALSE); - LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, FALSE); + if(tracing) { + uint8_t parity[MAX_PARITY_SIZE]; + GetParity(Demod.output, Demod.len, parity); + LogTrace(Demod.output, Demod.len, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, FALSE); } @@ -864,10 +843,7 @@ static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) } if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; - /*if(OutOfNDecoding((b & 0xf0) >> 4)) { - *len = Uart.byteCnt; - return TRUE; - }*/ + if(OutOfNDecoding(b & 0x0f)) { *len = Uart.byteCnt; return TRUE; @@ -954,7 +930,7 @@ static void CodeIClassTagSOF() // 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 @@ -971,43 +947,49 @@ 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); // 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); + doIClassSimulation(csn_crc,0,NULL); }else if(simType == 1) { - doIClassSimulation(csn_crc,0); + doIClassSimulation(csn_crc,0,NULL); } else if(simType == 2) { - Dbprintf("Going into attack mode"); + + uint8_t mac_responses[64] = { 0 }; + Dbprintf("Going into attack mode, %d CSNS sent", numberOfCSNS); // 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. - for(int i = 0 ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++) + 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)) + if(doIClassSimulation(csn_crc,1,mac_responses+i*8)) { 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..."); } /** @@ -1015,9 +997,8 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain * @param csn - csn to use * @param breakAfterMacReceived if true, returns after reader MAC has been received. */ -int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) +int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf) { - // CSN followed by two CRC bytes 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}; @@ -1068,7 +1049,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) // + 1720.. uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); - memset(receivedCmd, 0x44, RECV_CMD_SIZE); + memset(receivedCmd, 0x44, MAX_FRAME_SIZE); int len; // Prepare card messages @@ -1109,6 +1090,12 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) LED_A_ON(); bool buttonPressed = false; + + /** Hack for testing + memcpy(reader_mac_buf,csn,8); + exitLoop = true; + end hack **/ + while(!exitLoop) { LED_B_OFF(); @@ -1152,18 +1139,22 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) } else if(receivedCmd[0] == 0x05) { // Reader random and reader MAC!!! // 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){ - // TODO, actually return this to the caller instead of just // dbprintf:ing ... - Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"); + 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[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) { @@ -1187,7 +1178,7 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) if(cmdsRecvd > 100) { //DbpString("100 commands later..."); - break; + //break; } else { cmdsRecvd++; @@ -1199,14 +1190,13 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) } if (tracing) { - LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE); - LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE); + 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 (respdata != NULL) { - LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE); - LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE); - - + GetParity(respdata, respsize, parity); + LogTrace(respdata, respsize, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE); } if(!tracing) { DbpString("Trace full"); @@ -1214,10 +1204,10 @@ int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) } } - memset(receivedCmd, 0x44, RECV_CMD_SIZE); + memset(receivedCmd, 0x44, MAX_FRAME_SIZE); } - Dbprintf("%x", cmdsRecvd); + //Dbprintf("%x", cmdsRecvd); LED_A_OFF(); LED_B_OFF(); if(buttonPressed) @@ -1275,8 +1265,8 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int 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)) { @@ -1290,6 +1280,9 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int WDT_HIT(); } + } + + uint8_t sendbyte; bool firstpart = TRUE; c = 0; @@ -1370,10 +1363,8 @@ void ReaderTransmitIClass(uint8_t* frame, int len) { int wait = 0; int samples = 0; - int par = 0; // This is tied to other size changes - // uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024; CodeIClassCommand(frame,len); // Select the card @@ -1382,7 +1373,11 @@ void ReaderTransmitIClass(uint8_t* frame, int len) LED_A_ON(); // Store reader command in buffer - if (tracing) LogTrace(frame,len,rsamples,par,TRUE); + if (tracing) { + uint8_t par[MAX_PARITY_SIZE]; + GetParity(frame, len, par); + LogTrace(frame, len, rsamples, rsamples, par, TRUE); + } } //----------------------------------------------------------------------------- @@ -1413,7 +1408,7 @@ 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!! @@ -1424,10 +1419,7 @@ static int GetIClassAnswer(uint8_t *receivedResponse, int maxLen, int *samples, b = (uint8_t)AT91C_BASE_SSC->SSC_RHR; skip = !skip; if(skip) continue; - /*if(ManchesterDecoding((b>>4) & 0xf)) { - *samples = ((c - 1) << 3) + 4; - return TRUE; - }*/ + if(ManchesterDecoding(b & 0x0f)) { *samples = c << 3; return TRUE; @@ -1441,18 +1433,312 @@ int ReaderReceiveIClass(uint8_t* receivedAnswer) int samples = 0; if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return FALSE; rsamples += samples; - if (tracing) LogTrace(receivedAnswer,Demod.len,rsamples,Demod.parityBits,FALSE); + 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; return Demod.len; } +void setupIclassReader() +{ + FpgaDownloadAndGo(FPGA_BITSTREAM_HF); + // Reset trace buffer + iso14a_set_tracing(TRUE); + iso14a_clear_trace(); + + // 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(); + +} + +size_t 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 1;//Error +} + +/** + * @brief Talks to an iclass tag, sends the commands to get CSN and CC. + * @param card_data where the CSN and CC are stored for return + * @return 0 = fail + * 1 = Got CSN + * 2 = Got CSN and CC + */ +uint8_t handshakeIclassTag(uint8_t *card_data) +{ + static uint8_t act_all[] = { 0x0a }; + static uint8_t identify[] = { 0x0c }; + static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + static uint8_t readcheck_cc[]= { 0x88, 0x02 }; + uint8_t *resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + + uint8_t read_status = 0; + + // Send act_all + ReaderTransmitIClass(act_all, 1); + // Card present? + if(!ReaderReceiveIClass(resp)) return read_status;//Fail + //Send Identify + ReaderTransmitIClass(identify, 1); + //We expect a 10-byte response here, 8 byte anticollision-CSN and 2 byte CRC + uint8_t len = ReaderReceiveIClass(resp); + if(len != 10) return read_status;//Fail + + //Copy the Anti-collision CSN to our select-packet + memcpy(&select[1],resp,8); + //Select the card + ReaderTransmitIClass(select, sizeof(select)); + //We expect a 10-byte response here, 8 byte CSN and 2 byte CRC + len = ReaderReceiveIClass(resp); + if(len != 10) return read_status;//Fail + + //Success - level 1, we got CSN + //Save CSN in response data + memcpy(card_data,resp,8); + + //Flag that we got to at least stage 1, read CSN + read_status = 1; + + // Card selected, now read e-purse (cc) + 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; + } + + return read_status; +} + // 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; + + setupIclassReader(); + + size_t datasize = 0; + while(!BUTTON_PRESS()) + { + + if(traceLen > TRACE_SIZE) { + DbpString("Trace full"); + break; + } + WDT_HIT(); + + read_status = handshakeIclassTag(card_data); + + 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(!get_cc || (get_cc && read_status == 2)) + { + cmd_send(CMD_ACK,read_status,0,0,card_data,datasize); + if(abort_after_read) { + LED_A_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(); +} + +void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) { + + uint8_t card_data[USB_CMD_DATA_SIZE]={0}; + uint16_t block_crc_LUT[255] = {0}; + + {//Generate a lookup table for block crc + for(int block = 0; block < 255; block++){ + char bl = block; + block_crc_LUT[block] = iclass_crc16(&bl ,1); + } + } + //Dbprintf("Lookup table: %02x %02x %02x" ,block_crc_LUT[0],block_crc_LUT[1],block_crc_LUT[2]); + + uint8_t check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 }; + + uint16_t crc = 0; + uint8_t cardsize=0; + uint8_t mem=0; + + static struct memory_t{ + int k16; + int book; + int k2; + int lockauth; + int keyaccess; + } memory; + + uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET); + + setupIclassReader(); + + + while(!BUTTON_PRESS()) { + + WDT_HIT(); + + if(traceLen > TRACE_SIZE) { + DbpString("Trace full"); + break; + } + + uint8_t read_status = handshakeIclassTag(card_data); + if(read_status < 2) continue; + + //for now replay captured auth (as cc not updated) + memcpy(check+5,MAC,4); + + if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5)) + { + Dbprintf("Error: Authentication Fail!"); + continue; + } + + //first get configuration block (block 1) + crc = block_crc_LUT[1]; + read[1]=1; + read[2] = crc >> 8; + read[3] = crc & 0xff; + + 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); + + 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 + for(int block=0; block < cardsize; block++){ + + read[1]= block; + crc = block_crc_LUT[block]; + read[2] = crc >> 8; + read[3] = crc & 0xff; + + 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]); + + //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, + stored_data_length,//data length + failedRead,//Failed blocks? + 0,//Not used ATM + card_data, stored_data_length); + //reset + stored_data_length = 0; + failedRead = 0; + } + + }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) + { + cmd_send(CMD_ACK, + stored_data_length,//data length + failedRead,//Failed blocks? + 0,//Not used ATM + card_data, stored_data_length); + } + //If we got here, let's break + break; + } + //Signal end of transmission + cmd_send(CMD_ACK, + 0,//data length + 0,//Failed blocks? + 0,//Not used ATM + card_data, 0); + + 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* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + 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); @@ -1475,7 +1761,7 @@ void ReaderIClass(uint8_t arg0) { LED_A_ON(); - for(;;) { + for(int i=0;i<1;i++) { if(traceLen > TRACE_SIZE) { DbpString("Trace full"); @@ -1500,13 +1786,67 @@ void ReaderIClass(uint8_t arg0) { resp[3], resp[4], resp[5], resp[6], resp[7]); } - // Card selected, whats next... ;-) - } + // 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; + } + }// } WDT_HIT(); } LED_A_OFF(); -} - - +}*/