X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f9f5f4500024230410171226f036c596d73b1bbc..4eabb8ad382f87aaee497d35e88c169da96b8fda:/client/cmdlfem4x.c diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c index 2cc03430..59a1eef3 100644 --- a/client/cmdlfem4x.c +++ b/client/cmdlfem4x.c @@ -14,6 +14,20 @@ uint64_t g_em410xid = 0; static int CmdHelp(const char *Cmd); +int usage_lf_em410x_sim(void) { + PrintAndLog("Simulating EM410x tag"); + PrintAndLog(""); + PrintAndLog("Usage: lf em 410xsim [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" uid - uid (10 HEX symbols)"); + PrintAndLog(" clock - clock (32|64) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 410xsim 0F0368568B"); + PrintAndLog(" lf em 410xsim 0F0368568B 32"); + return 0; +} + int CmdEMdemodASK(const char *Cmd) { char cmdp = param_getchar(Cmd, 0); @@ -33,35 +47,16 @@ int CmdEMdemodASK(const char *Cmd) */ int CmdEM410xRead(const char *Cmd) { - uint32_t hi=0; - uint64_t lo=0; + uint32_t hi = 0; + uint64_t lo = 0; if(!AskEm410xDemod("", &hi, &lo, false)) return 0; - PrintAndLog("EM410x pattern found: "); + printEM410x(hi, lo); - if (hi){ - PrintAndLog ("EM410x XL pattern found"); - return 0; - } g_em410xid = lo; return 1; } - -int usage_lf_em410x_sim(void) { - PrintAndLog("Simulating EM410x tag"); - PrintAndLog(""); - PrintAndLog("Usage: lf em4x em410xsim [h] "); - PrintAndLog("Options:"); - PrintAndLog(" h - this help"); - PrintAndLog(" uid - uid (10 HEX symbols)"); - PrintAndLog(" clock - clock (32|64) (optional)"); - PrintAndLog("samples:"); - PrintAndLog(" lf em4x em410xsim 0F0368568B"); - PrintAndLog(" lf em4x em410xsim 0F0368568B 32"); - return 0; -} - // emulate an EM410X tag int CmdEM410xSim(const char *Cmd) { @@ -138,18 +133,15 @@ int CmdEM410xSim(const char *Cmd) * Changed by martin, 4000 x 4 = 16000, * see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235 */ -int CmdEM410xWatch(const char *Cmd) -{ +int CmdEM410xWatch(const char *Cmd) { do { if (ukbhit()) { printf("\naborted via keyboard!\n"); break; - } - + } CmdLFRead("s"); - getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9) + getSamples("6144",true); } while (!CmdEM410xRead("")); - return 0; } @@ -159,7 +151,7 @@ int CmdEM410xWatchnSpoof(const char *Cmd) { // loops if the captured ID was in XL-format. CmdEM410xWatch(Cmd); - PrintAndLog("# Replaying captured ID: %llu", g_em410xid); + PrintAndLog("# Replaying captured ID: %" PRIu64 , g_em410xid); CmdLFaskSim(""); return 0; } @@ -225,30 +217,109 @@ int CmdEM410xWrite(const char *Cmd) bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) { - if (rows*cols>size) return false; + if (rows*cols>size) return FALSE; uint8_t colP=0; //assume last col is a parity and do not test for (uint8_t colNum = 0; colNum < cols-1; colNum++) { for (uint8_t rowNum = 0; rowNum < rows; rowNum++) { colP ^= BitStream[(rowNum*cols)+colNum]; } - if (colP != pType) return false; + if (colP != pType) return FALSE; } - return true; + return TRUE; } bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) { - if (rows*cols>size) return false; + if (rows*cols>size) return FALSE; uint8_t rowP=0; //assume last row is a parity row and do not test for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) { for (uint8_t colNum = 0; colNum < cols; colNum++) { rowP ^= BitStream[(rowNum*cols)+colNum]; } - if (rowP != pType) return false; + if (rowP != pType) return FALSE; + } + return TRUE; +} + +// EM word parity test. +// 9*5 = 45 bits in total +// 012345678|r1 +// 012345678|r2 +// 012345678|r3 +// 012345678|r4 +// ------------ +//c012345678| 0 +// |- must be zero + +bool EMwordparitytest(uint8_t *bits){ + + // last row/col parity must be 0 + if (bits[44] != 0 ) return FALSE; + + // col parity check + uint8_t c1 = bytebits_to_byte(bits, 8) ^ bytebits_to_byte(bits+9, 8) ^ bytebits_to_byte(bits+18, 8) ^ bytebits_to_byte(bits+27, 8); + uint8_t c2 = bytebits_to_byte(bits+36, 8); + if ( c1 != c2 ) return FALSE; + + // row parity check + uint8_t rowP = 0; + for ( uint8_t i = 0; i < 36; ++i ) { + + rowP ^= bits[i]; + if ( i>0 && (i % 9) == 0) { + + if ( rowP != EVEN ) + return FALSE; + + rowP = 0; + } } - return true; + // all checks ok. + return TRUE; +} + + +//////////////// 4050 / 4450 commands +int usage_lf_em4x50_dump(void) { + PrintAndLog("Dump EM4x50/EM4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x50dump [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x50dump"); + PrintAndLog(" lf em 4x50dump 11223344"); + return 0; +} +int usage_lf_em4x50_read(void) { + PrintAndLog("Read EM 4x50/EM4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x50read [h]
"); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" address - memory address to read. (0-15)"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x50read 1"); + PrintAndLog(" lf em 4x50read 1 11223344"); + return 0; +} +int usage_lf_em4x50_write(void) { + PrintAndLog("Write EM 4x50/4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x50write [h]
"); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" address - memory address to write to. (0-15)"); + PrintAndLog(" data - data to write (hex)"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x50write 1 deadc0de"); + PrintAndLog(" lf em 4x50write 1 deadc0de 11223344"); + return 0; } uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest) @@ -283,6 +354,8 @@ uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool } return code; } + + /* Read the transmitted data of an EM4x50 tag from the graphbuffer * Format: * @@ -303,9 +376,7 @@ uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool * Word Read values. UID is stored in block 32. */ //completed by Marshmellow -int EM4x50Read(const char *Cmd, bool verbose) -{ - +int EM4x50Read(const char *Cmd, bool verbose) { uint8_t fndClk[] = {8,16,32,40,50,64,128}; int clk = 0; int invert = 0; @@ -372,7 +443,7 @@ int EM4x50Read(const char *Cmd, bool verbose) } } if (!clk) { - PrintAndLog("ERROR: EM4x50 - didn't find a clock"); + if (verbose || g_debugMode) PrintAndLog("ERROR: EM4x50 - didn't find a clock"); return 0; } } else tol = clk/8; @@ -496,161 +567,223 @@ int EM4x50Read(const char *Cmd, bool verbose) } int CmdEM4x50Read(const char *Cmd) { + uint8_t ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_read(); return EM4x50Read(Cmd, true); } - -int usage_lf_em_read(void) { - PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. "); - PrintAndLog(""); - PrintAndLog("Usage: lf em readword [h]
"); - PrintAndLog("Options:"); - PrintAndLog(" h - this help"); - PrintAndLog(" address - memory address to read. (0-15)"); - PrintAndLog(" pwd - password (hex) (optional)"); - PrintAndLog("samples:"); - PrintAndLog(" lf em readword 1"); - PrintAndLog(" lf em readword 1 11223344"); +int CmdEM4x50Write(const char *Cmd){ + uint8_t ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_write(); + PrintAndLog("no implemented yet"); return 0; } - -//search for given preamble in given BitStream and return success=1 or fail=0 and startIndex -uint8_t EMpreambleSearch(uint8_t *BitStream, uint8_t *preamble, size_t pLen, size_t size, size_t *startIdx) -{ - // Sanity check. If preamble length is bigger than bitstream length. - if ( size <= pLen ) return 0; - // em only sends preamble once, so look for it once in the first x bits - uint8_t foundCnt = 0; - for (int idx = 0; idx < size - pLen; idx++){ - if (memcmp(BitStream+idx, preamble, pLen) == 0){ - //first index found - foundCnt++; - if (foundCnt == 1) { - *startIdx = idx; - return 1; - } - } - } +int CmdEM4x50Dump(const char *Cmd){ + uint8_t ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_dump(); + PrintAndLog("no implemented yet"); return 0; } -int demodEM4x05resp(uint8_t bitsNeeded) { - int ans = 0; - bool demodFound = false; - DemodBufferLen = 0x00; - // skip first two 0 bits as they might have been missed in the demod - uint8_t preamble[6] = {0,0,1,0,1,0}; - - // test for FSK wave (easiest to 99% ID) - if (GetFskClock("", FALSE, FALSE)) { - //valid fsk clocks found - ans = FSKrawDemod("0 0", false); - if (!ans) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: FSK Demod failed"); - //return -1; - } else { - // set size to 10 to only test first 4 positions for the preamble - size_t size = (10 > DemodBufferLen) ? DemodBufferLen : 10; - size_t startIdx = 0; - - if (g_debugMode) PrintAndLog("ANS: %d | %u | %u", ans, startIdx, size); - - uint8_t errChk = !EMpreambleSearch(DemodBuffer, preamble, sizeof(preamble), size, &startIdx); - if ( errChk == 0) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx); - //return -1; - } else { - //can't test size because the preamble doesn't repeat :( - //meaning chances of false positives are high. - demodFound = true; - } - } +#define EM_PREAMBLE_LEN 6 +// download samples from device and copy to Graphbuffer +bool downloadSamplesEM(){ + + // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples) + uint8_t got[6000]; + GetFromBigBuf(got, sizeof(got), 0); + if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500) ) { + PrintAndLog("command execution time out"); + return FALSE; } + setGraphBuf(got, sizeof(got)); + return TRUE; +} - ans = GetPskClock("", FALSE, FALSE); - if (ans>0) { - PrintAndLog("PSK response possibly found, run `data rawd p1` to attempt to demod"); +// em_demod +bool doPreambleSearch(size_t *startIdx){ + + // sanity check + if ( DemodBufferLen < EM_PREAMBLE_LEN) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 demodbuffer too small"); + return FALSE; } - if (!demodFound) { - DemodBufferLen = 0x00; - //try biphase - ans = ASKbiphaseDemod("0 0 1", FALSE); - if (!ans) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/biphase Demod failed"); - //return -1; - } else { - // set size to 10 to only test first 4 positions for the preamble - size_t size = (10 > DemodBufferLen) ? DemodBufferLen : 10; - size_t startIdx = 0; - - if (g_debugMode) PrintAndLog("ANS: %d | %u | %u", ans, startIdx, size); + // set size to 20 to only test first 14 positions for the preamble + size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20; + *startIdx = 0; + // skip first two 0 bits as they might have been missed in the demod + uint8_t preamble[EM_PREAMBLE_LEN] = {0,0,1,0,1,0}; + + if ( !preambleSearchEx(DemodBuffer, preamble, EM_PREAMBLE_LEN, &size, startIdx, TRUE)) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", *startIdx); + return FALSE; + } + return TRUE; +} - uint8_t errChk = !EMpreambleSearch(DemodBuffer, preamble, sizeof(preamble), size, &startIdx); - if ( errChk == 0) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx); - //return -1; - } else { - //can't test size because the preamble doesn't repeat :( - //meaning chances of false positives are high. - demodFound = true; - } - } +bool detectFSK(){ + // detect fsk clock + if (!GetFskClock("", FALSE, FALSE)) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK clock failed"); + return FALSE; } - - if (!demodFound) { - DemodBufferLen = 0x00; - // try manchester - NOTE: ST only applies to T55x7 tags. - ans = ASKDemod_ext("0,0,1", false, false, 1, false); + // demod + int ans = FSKrawDemod("0 0", FALSE); + if (!ans) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK Demod failed"); + return FALSE; + } + return TRUE; +} +// PSK clocks should be easy to detect ( but difficult to demod a non-repeating pattern... ) +bool detectPSK(){ + int ans = GetPskClock("", FALSE, FALSE); + if (ans <= 0) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK clock failed"); + return FALSE; + } + //demod + //try psk1 -- 0 0 6 (six errors?!?) + ans = PSKDemod("0 0 6", FALSE); + if (!ans) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 Demod failed"); + + //try psk1 inverted + ans = PSKDemod("0 1 6", FALSE); if (!ans) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/Manchester Demod failed"); - //return -1; - } else { - // set size to 10 to only test first 4 positions for the preamble - size_t size = (10 > DemodBufferLen) ? DemodBufferLen : 10; - size_t startIdx = 0; - - if (g_debugMode) PrintAndLog("ANS: %d | %u | %u", ans, startIdx, size); - - uint8_t errChk = !EMpreambleSearch(DemodBuffer, preamble, sizeof(preamble), size, &startIdx); - if ( errChk == 0) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx); - //return -1; - } else { - //can't test size because the preamble doesn't repeat :( - //meaning chances of false positives are high. - demodFound = true; - } + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 inverted Demod failed"); + return FALSE; } } - - if (demodFound && bitsNeeded < DemodBufferLen) { - setDemodBuf(DemodBuffer + ans + sizeof(preamble), bitsNeeded, 0); - CmdPrintDemodBuff("x"); - return 1; + // either PSK1 or PSK1 inverted is ok from here. + // lets check PSK2 later. + return TRUE; +} +// try manchester - NOTE: ST only applies to T55x7 tags. +bool detectASK_MAN(){ + bool stcheck = FALSE; + int ans = ASKDemod_ext("0 0 0", FALSE, FALSE, 1, &stcheck); + if (!ans) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/Manchester Demod failed"); + return FALSE; + } + return TRUE; +} +bool detectASK_BI(){ + int ans = ASKbiphaseDemod("0 0 1", FALSE); + if (!ans) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase normal demod failed"); + + ans = ASKbiphaseDemod("0 1 1", FALSE); + if (!ans) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase inverted demod failed"); + return FALSE; + } } - return -1; + return TRUE; } -int CmdReadWord(const char *Cmd) { - int addr, pwd; - bool usePwd = false; - uint8_t ctmp = param_getchar(Cmd, 0); - if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em_read(); +// param: idx - start index in demoded data. +bool setDemodBufferEM(uint32_t *word, size_t idx){ - addr = param_get8ex(Cmd, 0, -1, 10); - pwd = param_get32ex(Cmd, 1, -1, 16); - - if ( (addr > 15) || (addr < 0 ) || ( addr == -1) ) { - PrintAndLog("Address must be between 0 and 15"); - return 1; + //test for even parity bits. + uint8_t parity[45] = {0}; + memcpy( parity, DemodBuffer, 45); + if (!EMwordparitytest(parity) ){ + PrintAndLog("DEBUG: Error - EM Parity tests failed"); + return FALSE; } - if ( pwd == -1 ) - PrintAndLog("Reading address %d", addr); - else { - usePwd = true; - PrintAndLog("Reading address %d | password %08X", addr, pwd); + + // test for even parity bits and remove them. (leave out the end row of parities so 36 bits) + if (!removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 36)) { + if (g_debugMode) PrintAndLog("DEBUG: Error - EM, failed removing parity"); + return FALSE; } + setDemodBuf(DemodBuffer, 32, 0); + *word = bytebits_to_byteLSBF(DemodBuffer, 32); + return TRUE; +} + +// FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE +// should cover 90% of known used configs +// the rest will need to be manually demoded for now... +bool demodEM4x05resp(uint32_t *word) { + size_t idx = 0; + *word = 0; + if (detectASK_MAN() && doPreambleSearch( &idx )) + return setDemodBufferEM(word, idx); + + if (detectASK_BI() && doPreambleSearch( &idx )) + return setDemodBufferEM(word, idx); + if (detectFSK() && doPreambleSearch( &idx )) + return setDemodBufferEM(word, idx); + + if (detectPSK()) { + if (doPreambleSearch( &idx )) + return setDemodBufferEM(word, idx); + + psk1TOpsk2(DemodBuffer, DemodBufferLen); + if (doPreambleSearch( &idx )) + return setDemodBufferEM(word, idx); + } + return FALSE; +} + +//////////////// 4205 / 4305 commands +int usage_lf_em4x05_dump(void) { + PrintAndLog("Dump EM4x05/EM4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x05dump [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x05dump"); + PrintAndLog(" lf em 4x05dump 11223344"); + return 0; +} +int usage_lf_em4x05_read(void) { + PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x05read [h]
"); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" address - memory address to read. (0-15)"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x05read 1"); + PrintAndLog(" lf em 4x05read 1 11223344"); + return 0; +} +int usage_lf_em4x05_write(void) { + PrintAndLog("Write EM4x05/4x69. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x05write [h]
"); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" address - memory address to write to. (0-15)"); + PrintAndLog(" data - data to write (hex)"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x05write 1 deadc0de"); + PrintAndLog(" lf em 4x05write 1 deadc0de 11223344"); + return 0; +} +int usage_lf_em4x05_info(void) { + PrintAndLog("Tag information EM4205/4305/4469//4569 tags. Tag must be on antenna."); + PrintAndLog(""); + PrintAndLog("Usage: lf em 4x05info [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h - this help"); + PrintAndLog(" pwd - password (hex) (optional)"); + PrintAndLog("samples:"); + PrintAndLog(" lf em 4x05info"); + PrintAndLog(" lf em 4x05info deadc0de"); + return 0; +} + +int EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *word) { UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}}; clearCommandBuffer(); SendCommand(&c); @@ -659,60 +792,99 @@ int CmdReadWord(const char *Cmd) { PrintAndLog("Command timed out"); return -1; } - - uint8_t got[6000]; - GetFromBigBuf(got, sizeof(got), 0); - if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500) ) { - PrintAndLog("command execution time out"); + if ( !downloadSamplesEM() ) { return -1; } - setGraphBuf(got, sizeof(got)); int testLen = (GraphTraceLen < 1000) ? GraphTraceLen : 1000; if (graphJustNoise(GraphBuffer, testLen)) { - PrintAndLog("no tag not found"); + PrintAndLog("no tag found"); return -1; } + return demodEM4x05resp(word); +} + +int CmdEM4x05Dump(const char *Cmd) { + uint8_t addr = 0; + uint32_t pwd = 0; + bool usePwd = false; + uint8_t ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_dump(); - //need 32 bits for read word - demodEM4x05resp(32); + // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) + pwd = param_get32ex(Cmd, 0, 1, 16); - return 1; -} + if ( pwd != 1 ) + usePwd = true; -int usage_lf_em_write(void) { - PrintAndLog("Write EM4x05/EM4x69. Tag must be on antenna. "); - PrintAndLog(""); - PrintAndLog("Usage: lf em writeword [h]
"); - PrintAndLog("Options:"); - PrintAndLog(" h - this help"); - PrintAndLog(" address - memory address to write to. (0-15)"); - PrintAndLog(" data - data to write (hex)"); - PrintAndLog(" pwd - password (hex) (optional)"); - PrintAndLog("samples:"); - PrintAndLog(" lf em writeword 1"); - PrintAndLog(" lf em writeword 1 deadc0de 11223344"); - return 0; + int success = 1; + uint32_t word = 0; + PrintAndLog("Addr | data | ascii"); + PrintAndLog("-----+--------+------"); + for (; addr < 16; addr++) { + + if (addr == 2) { + if (usePwd) { + PrintAndLog(" %02u | %08X", addr, pwd, word ); + } else { + PrintAndLog(" 02 | cannot read"); + } + } else { + success &= EM4x05ReadWord_ext(addr, pwd, usePwd, &word); + } + } + + return success; } -int CmdWriteWord(const char *Cmd) { + +int CmdEM4x05Read(const char *Cmd) { + uint8_t addr; + uint32_t pwd; + bool usePwd = false; uint8_t ctmp = param_getchar(Cmd, 0); - if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em_write(); + if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_read(); + + addr = param_get8ex(Cmd, 0, 50, 10); + pwd = param_get32ex(Cmd, 1, 1, 16); - bool usePwd = false; - - int addr = 16; // default to invalid address - int data = 0xFFFFFFFF; // default to blank data - int pwd = 0xFFFFFFFF; // default to blank password + if (addr > 15) { + PrintAndLog("Address must be between 0 and 15"); + return 1; + } + if ( pwd == 1 ) { + PrintAndLog("Reading address %02u", addr); + } + else { + usePwd = true; + PrintAndLog("Reading address %02u | password %08X", addr, pwd); + } + + uint32_t word = 0; + int isOk = EM4x05ReadWord_ext(addr, pwd, usePwd, &word); + if (isOk) + PrintAndLog("Address %02d | %08X - %s", addr, word, (addr > 13) ? "Lock" : ""); + else + PrintAndLog("Read Address %02d | failed",addr); + return isOk; +} + +int CmdEM4x05Write(const char *Cmd) { + uint8_t ctmp = param_getchar(Cmd, 0); + if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_write(); - addr = param_get8ex(Cmd, 0, -1, 10); - data = param_get32ex(Cmd, 1, -1, 16); - pwd = param_get32ex(Cmd, 2, -1, 16); + bool usePwd = false; + uint8_t addr = 50; // default to invalid address + uint32_t data = 0; // default to blank data + uint32_t pwd = 1; // default to blank password + addr = param_get8ex(Cmd, 0, 50, 10); + data = param_get32ex(Cmd, 1, 0, 16); + pwd = param_get32ex(Cmd, 2, 1, 16); - if ( (addr > 15) || (addr < 0 ) || ( addr == -1) ) { + if ( addr > 15 ) { PrintAndLog("Address must be between 0 and 15"); return 1; } - if ( pwd == -1 ) + if ( pwd == 1 ) PrintAndLog("Writing address %d data %08X", addr, data); else { usePwd = true; @@ -725,54 +897,187 @@ int CmdWriteWord(const char *Cmd) { clearCommandBuffer(); SendCommand(&c); UsbCommand resp; - if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){ + if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)){ PrintAndLog("Error occurred, device did not respond during write operation."); return -1; } - //get response if there is one - uint8_t got[6000]; // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples) - GetFromBigBuf(got, sizeof(got), 0); - if ( !WaitForResponseTimeout(CMD_ACK, NULL, 8000) ) { - PrintAndLog("command execution time out"); - return -2; + if (!downloadSamplesEM()) + return -1; + + //need 0 bits demoded (after preamble) to verify write cmd + uint32_t dummy = 0; + int isOk = demodEM4x05resp(&dummy); + if (isOk) + PrintAndLog("Write Verified"); + else + PrintAndLog("Write could not be verified"); + return isOk; +} + +void printEM4x05config(uint32_t wordData) { + uint16_t datarate = (((wordData & 0x3F)+1)*2); + uint8_t encoder = ((wordData >> 6) & 0xF); + char enc[14]; + memset(enc,0,sizeof(enc)); + + uint8_t PSKcf = (wordData >> 10) & 0x3; + char cf[10]; + memset(cf,0,sizeof(cf)); + uint8_t delay = (wordData >> 12) & 0x3; + char cdelay[33]; + memset(cdelay,0,sizeof(cdelay)); + uint8_t LWR = (wordData >> 14) & 0xF; //last word read + + switch (encoder) { + case 0: snprintf(enc,sizeof(enc),"NRZ"); break; + case 1: snprintf(enc,sizeof(enc),"Manchester"); break; + case 2: snprintf(enc,sizeof(enc),"Biphase"); break; + case 3: snprintf(enc,sizeof(enc),"Miller"); break; + case 4: snprintf(enc,sizeof(enc),"PSK1"); break; + case 5: snprintf(enc,sizeof(enc),"PSK2"); break; + case 6: snprintf(enc,sizeof(enc),"PSK3"); break; + case 7: snprintf(enc,sizeof(enc),"Unknown"); break; + case 8: snprintf(enc,sizeof(enc),"FSK1"); break; + case 9: snprintf(enc,sizeof(enc),"FSK2"); break; + default: snprintf(enc,sizeof(enc),"Unknown"); break; } - setGraphBuf(got, sizeof(got)); + + switch (PSKcf) { + case 0: snprintf(cf,sizeof(cf),"RF/2"); break; + case 1: snprintf(cf,sizeof(cf),"RF/8"); break; + case 2: snprintf(cf,sizeof(cf),"RF/4"); break; + case 3: snprintf(cf,sizeof(cf),"unknown"); break; + } + + switch (delay) { + case 0: snprintf(cdelay, sizeof(cdelay),"no delay"); break; + case 1: snprintf(cdelay, sizeof(cdelay),"BP/8 or 1/8th bit period delay"); break; + case 2: snprintf(cdelay, sizeof(cdelay),"BP/4 or 1/4th bit period delay"); break; + case 3: snprintf(cdelay, sizeof(cdelay),"no delay"); break; + } + PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData); + PrintAndLog("Config Breakdown:", wordData); + PrintAndLog(" Data Rate: %02u | RF/%u", wordData & 0x3F, datarate); + PrintAndLog(" Encoder: %u | %s", encoder, enc); + PrintAndLog(" PSK CF: %u | %s", PSKcf, cf); + PrintAndLog(" Delay: %u | %s", delay, cdelay); + PrintAndLog(" LastWordR: %02u | Address of last word for default read", LWR); + PrintAndLog(" ReadLogin: %u | Read Login is %s", (wordData & 0x40000)>>18, (wordData & 0x40000) ? "Required" : "Not Required"); + PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", (wordData & 0x80000)>>19, (wordData & 0x80000) ? "Required" : "Not Required"); + PrintAndLog("WriteLogin: %u | Write Login is %s", (wordData & 0x100000)>>20, (wordData & 0x100000) ? "Required" : "Not Required"); + PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", (wordData & 0x200000)>>21, (wordData & 0x200000) ? "Required" : "Not Required"); + PrintAndLog(" R.A.W.: %u | Read After Write is %s", (wordData & 0x400000)>>22, (wordData & 0x400000) ? "On" : "Off"); + PrintAndLog(" Disable: %u | Disable Command is %s", (wordData & 0x800000)>>23, (wordData & 0x800000) ? "Accepted" : "Not Accepted"); + PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", (wordData & 0x1000000)>>24, (wordData & 0x1000000) ? "Enabled" : "Disabled"); + PrintAndLog(" Pigeon: %u | Pigeon Mode is %s\n", (wordData & 0x4000000)>>26, (wordData & 0x4000000) ? "Enabled" : "Disabled"); +} + +void printEM4x05info(uint32_t block0, uint32_t serial) { + + uint8_t chipType = (block0 >> 1) & 0xF; + uint8_t cap = (block0 >> 5) & 3; + uint16_t custCode = (block0 >> 9) & 0x3FF; - int ans = 0; - //bool ST = true; - DemodBufferLen = 0x00; + switch (chipType) { + case 9: PrintAndLog("\n Chip Type: %u | EM4305", chipType); break; + case 8: PrintAndLog("\n Chip Type: %u | EM4205", chipType); break; + case 4: PrintAndLog(" Chip Type: %u | Unknown", chipType); break; + case 2: PrintAndLog(" Chip Type: %u | EM4469", chipType); break; + //add more here when known + default: PrintAndLog(" Chip Type: %u Unknown", chipType); break; + } - //ans = ASKDemod_ext("0 0 1", FALSE, FALSE, 1, &ST); - ans = ASKbiphaseDemod("0 0 1", FALSE); - if (!ans) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305: ASK/Manchester Demod failed"); - return -3; + switch (cap) { + case 3: PrintAndLog(" Cap Type: %u | 330pF",cap); break; + case 2: PrintAndLog(" Cap Type: %u | %spF",cap, (chipType==2)? "75":"210"); break; + case 1: PrintAndLog(" Cap Type: %u | 250pF",cap); break; + case 0: PrintAndLog(" Cap Type: %u | no resonant capacitor",cap); break; + default: PrintAndLog(" Cap Type: %u | unknown",cap); break; + } + + PrintAndLog(" Cust Code: %03u | %s", custCode, (custCode == 0x200) ? "Default": "Unknown"); + if (serial != 0) + PrintAndLog("\n Serial #: %08X\n", serial); +} + +void printEM4x05ProtectionBits(uint32_t word) { + for (uint8_t i = 0; i < 15; i++) { + PrintAndLog(" Word: %02u | %s", i, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); + if (i==14) + PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); } +} + +//quick test for EM4x05/EM4x69 tag +bool EM4x05IsBlock0(uint32_t *word) { + return EM4x05ReadWord_ext(0, 0, FALSE, word); +} + +int CmdEM4x05Info(const char *Cmd) { +#define EM_SERIAL_BLOCK 1 +#define EM_CONFIG_BLOCK 4 +#define EM_PROT1_BLOCK 14 +#define EM_PROT2_BLOCK 15 + uint32_t pwd; + uint32_t word = 0, block0 = 0, serial = 0; + bool usePwd = false; + uint8_t ctmp = param_getchar(Cmd, 0); + if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_info(); + + // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) + pwd = param_get32ex(Cmd, 0, 1, 16); - //todo: check response for 00001010 then write data for write confirmation! - size_t startIdx = 0, size = DemodBufferLen; + if ( pwd != 1 ) + usePwd = true; - uint8_t preamble[8] = {0,0,0,0,1,0,1,0}; - if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){ - if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx); - return -4; + // read word 0 (chip info) + // block 0 can be read even without a password. + if ( !EM4x05IsBlock0(&block0) ) + return -1; + + // read word 1 (serial #) doesn't need pwd + // continue if failed, .. non blocking fail. + EM4x05ReadWord_ext(EM_SERIAL_BLOCK, 0, false, &serial); + printEM4x05info(block0, serial); + + // read word 4 (config block) + // needs password if one is set + if ( EM4x05ReadWord_ext(EM_CONFIG_BLOCK, pwd, usePwd, &word) != 1 ) + return 0; + + printEM4x05config(word); + + // read word 14 and 15 to see which is being used for the protection bits + if ( EM4x05ReadWord_ext(EM_PROT1_BLOCK, pwd, usePwd, &word) != 1 ) { + return 0; } - PrintAndLog("Write OK"); - return 0; + // if status bit says this is not the used protection word + if (!(word & 0x8000)) { + if ( EM4x05ReadWord_ext(EM_PROT2_BLOCK, pwd, usePwd, &word) != 1 ) + return 0; + } + //something went wrong + if (!(word & 0x8000)) return 0; + printEM4x05ProtectionBits(word); + return 1; } static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, - {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"}, - {"em410xsim", CmdEM410xSim, 0, " -- Simulate EM410x tag"}, - {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, - {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, - {"em410xwrite", CmdEM410xWrite, 0, " <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, - {"em4x50read", CmdEM4x50Read, 1, "demod data from EM4x50 tag from the graphbuffer"}, - {"readword", CmdReadWord, 1, "read EM4x05/4x69 data"}, - {"writeword", CmdWriteWord, 1, "write EM405/4x69 data"}, + {"410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, + {"410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"}, + {"410xsim", CmdEM410xSim, 0, "simulate EM410x tag"}, + {"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, + {"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, + {"410xwrite", CmdEM410xWrite, 0, " <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, + {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"}, + {"4x05info", CmdEM4x05Info, 0, "tag information EM4x05/EM4x69"}, + {"4x05read", CmdEM4x05Read, 0, "read word data from EM4205/4305"}, + {"4x05write", CmdEM4x05Write, 0, "write word data to EM4205/4305"}, + {"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"}, + {"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"}, + {"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"}, {NULL, NULL, 0, NULL} };