X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/2ae8a312e058f71d0f02be4f2f9cc6f284ebbf34..d3a22c7dfa87bf5e21d228849a602194be4a0895:/client/cmdlft55xx.c diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c index 9eaa6463..24685eb9 100644 --- a/client/cmdlft55xx.c +++ b/client/cmdlft55xx.c @@ -22,11 +22,10 @@ #include "data.h" -#define LF_TRACE_BUFF_SIZE 12000 // 32 x 32 x 10 (32 bit times numofblock (7), times clock skip..) +#define LF_TRACE_BUFF_SIZE 20000 // 32 x 32 x 10 (32 bit times numofblock (7), times clock skip..) #define LF_BITSSTREAM_LEN 1000 // more then 1000 bits shouldn't happend.. 8block * 4 bytes * 8bits = static int CmdHelp(const char *Cmd); - int CmdReadBlk(const char *Cmd) { int block = -1; @@ -46,18 +45,17 @@ int CmdReadBlk(const char *Cmd) SendCommand(&c); WaitForResponse(CMD_ACK, NULL); -// uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; + uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; - // GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560); //3560 -- should be offset.. - // WaitForResponseTimeout(CMD_ACK,NULL, 1500); - - // for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { - // GraphBuffer[j] = (int)data[j]; - // } - // GraphTraceLen = LF_TRACE_BUFF_SIZE; - CmdSamples("12000"); + GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,0); //3560 -- should be offset.. + WaitForResponseTimeout(CMD_ACK,NULL, 1500); + + for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { + GraphBuffer[j] = (int)data[j]; + } + GraphTraceLen = LF_TRACE_BUFF_SIZE; ManchesterDemod(block); - // RepaintGraphWindow(); + RepaintGraphWindow(); return 0; } @@ -86,7 +84,7 @@ int CmdReadBlkPWD(const char *Cmd) uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; - GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560); //3560 -- should be offset.. + GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,0); //3560 -- should be offset.. WaitForResponseTimeout(CMD_ACK,NULL, 1500); for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { @@ -167,7 +165,7 @@ int CmdReadTrace(const char *Cmd) uint8_t data[LF_TRACE_BUFF_SIZE] = {0x00}; - GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,3560); //3560 -- should be offset.. + GetFromBigBuf(data,LF_TRACE_BUFF_SIZE,0); //3560 -- should be offset.. WaitForResponseTimeout(CMD_ACK,NULL, 1500); for (int j = 0; j < LF_TRACE_BUFF_SIZE; j++) { @@ -250,32 +248,31 @@ int CmdInfo(const char *Cmd){ return 0; } - if ( strlen(Cmd)==0){ + if ( strlen(Cmd) == 0 ){ CmdReadBlk("0"); } uint8_t bits[LF_BITSSTREAM_LEN] = {0x00}; - uint8_t * bitstream = bits; - - manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN); + + manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bits, LF_BITSSTREAM_LEN); uint8_t si = 5; - uint32_t bl0 = PackBits(si, 32, bitstream); + uint32_t bl0 = PackBits(si, 32, bits); - uint32_t safer = PackBits(si, 4, bitstream); si += 4; - uint32_t resv = PackBits(si, 7, bitstream); si += 7; - uint32_t dbr = PackBits(si, 3, bitstream); si += 3; - uint32_t extend = PackBits(si, 1, bitstream); si += 1; - uint32_t datamodulation = PackBits(si, 5, bitstream); si += 5; - uint32_t pskcf = PackBits(si, 2, bitstream); si += 2; - uint32_t aor = PackBits(si, 1, bitstream); si += 1; - uint32_t otp = PackBits(si, 1, bitstream); si += 1; - uint32_t maxblk = PackBits(si, 3, bitstream); si += 3; - uint32_t pwd = PackBits(si, 1, bitstream); si += 1; - uint32_t sst = PackBits(si, 1, bitstream); si += 1; - uint32_t fw = PackBits(si, 1, bitstream); si += 1; - uint32_t inv = PackBits(si, 1, bitstream); si += 1; - uint32_t por = PackBits(si, 1, bitstream); si += 1; + uint32_t safer = PackBits(si, 4, bits); si += 4; + uint32_t resv = PackBits(si, 7, bits); si += 7; + uint32_t dbr = PackBits(si, 3, bits); si += 3; + uint32_t extend = PackBits(si, 1, bits); si += 1; + uint32_t datamodulation = PackBits(si, 5, bits); si += 5; + uint32_t pskcf = PackBits(si, 2, bits); si += 2; + uint32_t aor = PackBits(si, 1, bits); si += 1; + uint32_t otp = PackBits(si, 1, bits); si += 1; + uint32_t maxblk = PackBits(si, 3, bits); si += 3; + uint32_t pwd = PackBits(si, 1, bits); si += 1; + uint32_t sst = PackBits(si, 1, bits); si += 1; + uint32_t fw = PackBits(si, 1, bits); si += 1; + uint32_t inv = PackBits(si, 1, bits); si += 1; + uint32_t por = PackBits(si, 1, bits); si += 1; PrintAndLog(""); PrintAndLog("-- T55xx Configuration --------------------------------------"); @@ -296,7 +293,7 @@ int CmdInfo(const char *Cmd){ PrintAndLog(" POR-Delay : %s", (por) ? "Yes":"No"); PrintAndLog("-------------------------------------------------------------"); PrintAndLog(" Raw Data - Page 0"); - PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(bitstream+5,32) ); + PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(bits+5,32) ); PrintAndLog("-------------------------------------------------------------"); return 0; @@ -321,7 +318,7 @@ int CmdDump(const char *Cmd){ return 0; } } - + for ( int i = 0; i <8; ++i){ memset(s,0,sizeof(s)); if ( hasPwd ) { @@ -352,13 +349,16 @@ int ManchesterDemod(int blockNum){ if (!HasGraphData()) return 0; uint8_t sizebyte = 32; + // the value 5 was selected during empirical studies of the decoded data. Some signal noise to skip. uint8_t offset = 5; uint32_t blockData; uint8_t bits[LF_BITSSTREAM_LEN] = {0x00}; uint8_t * bitstream = bits; - manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN); - blockData = PackBits(offset, sizebyte, bitstream); + //manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bitstream, LF_BITSSTREAM_LEN); + manchester_decode(GraphBuffer, LF_TRACE_BUFF_SIZE, bits, LF_BITSSTREAM_LEN); + //blockData = PackBits(offset, sizebyte, bitstream); + blockData = PackBits(offset, sizebyte, bits); if ( blockNum < 0) PrintAndLog(" Decoded : 0x%08X %s", blockData, sprint_bin(bitstream+offset,sizebyte) ); @@ -468,6 +468,9 @@ uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){ int i = start; int j = len-1; + if (len > 32) { + return 0; + } uint32_t tmp = 0; for (; j >= 0; --j, ++i){ tmp |= bits[i] << j; @@ -482,8 +485,8 @@ static command_t CommandTable[] = {"rdpwd", CmdReadBlkPWD, 0, " -- Read T55xx block data with password mode"}, {"wr", CmdWriteBlk, 0, " -- Write T55xx block data (page 0)"}, {"wrpwd", CmdWriteBlkPWD, 0, " -- Write T55xx block data with password"}, - {"trace", CmdReadTrace, 0, "[1] Read T55xx traceability data (page 1 / blk 0-1) "}, - {"info", CmdInfo, 0, "[1] Read T55xx configuration data (page0 /blk 0)"}, + {"trace", CmdReadTrace, 0, "[1] Read T55xx traceability data (page 1/ blk 0-1)"}, + {"info", CmdInfo, 0, "[1] Read T55xx configuration data (page 0/ blk 0)"}, {"dump", CmdDump, 0, "[password] Dump T55xx card block 0-7. optional with password"}, {"fsk", CmdIceFsk, 0, "FSK demod"}, {"man", CmdIceManchester, 0, "Manchester demod (with SST)"},