X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9932c55a4accc135200bca93edec8022f8bdcf12..5215a874429bf41ec24c83d6d5f631233faf3d76:/client/cmdlfem4x.c diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c index a1e883e0..a0bddb2a 100644 --- a/client/cmdlfem4x.c +++ b/client/cmdlfem4x.c @@ -147,7 +147,8 @@ int CmdEM410xWatch(const char *Cmd) } CmdLFRead("s"); - getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9) + //getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9) + getSamples("6144",true); } while (!CmdEM410xRead("")); return 0; @@ -159,7 +160,7 @@ 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; } @@ -593,8 +594,7 @@ int CmdEM4x50Dump(const char *Cmd){ } #define EM_PREAMBLE_LEN 6 -// download samples from device -// and copy them to Graphbuffer +// download samples from device and copy to Graphbuffer bool downloadSamplesEM(){ // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples) @@ -607,7 +607,8 @@ bool downloadSamplesEM(){ setGraphBuf(got, sizeof(got)); return TRUE; } -//search for given preamble in given BitStream and return success=1 or fail=0 and startIndex + +// em_demod bool doPreambleSearch(size_t *startIdx){ // sanity check @@ -615,26 +616,14 @@ bool doPreambleSearch(size_t *startIdx){ if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 demodbuffer too small"); return FALSE; } - - // 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}; - - // set size to 15 to only test first 4 positions for the preamble - size_t size = (15 > DemodBufferLen) ? DemodBufferLen : 15; + + // set size to 20 to only test first 14 positions for the preamble + size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20; *startIdx = 0; - uint8_t found = 0; - - // em only sends preamble once, so look for it once in the first x bits - for (int idx = 0; idx < size - EM_PREAMBLE_LEN; idx++){ - if (memcmp(DemodBuffer+idx, preamble, EM_PREAMBLE_LEN) == 0){ - //first index found - *startIdx = idx; - found = 1; - break; - } - } + // 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 ( !found) { + if ( !preambleSearchEx(DemodBuffer, preamble, EM_PREAMBLE_LEN, &size, startIdx, TRUE)) { if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", *startIdx); return FALSE; } @@ -708,19 +697,18 @@ bool setDemodBufferEM(uint32_t *word, size_t idx){ //test for even parity bits. uint8_t parity[45] = {0}; - memcpy( parity, 45, DemodBuffer); + memcpy( parity, DemodBuffer, 45); if (!EMwordparitytest(parity) ){ PrintAndLog("DEBUG: Error - EM Parity tests failed"); return FALSE; } - - size_t size = removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 44); - if (!size) { - if (g_debugMode) PrintAndLog("DEBUG: Error - EM Parity not detected"); + + // 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; } - // set & copy to output - setDemodBuf(DemodBuffer, 40, 0); + setDemodBuf(DemodBuffer, 32, 0); *word = bytebits_to_byteLSBF(DemodBuffer, 32); return TRUE; } @@ -791,6 +779,18 @@ int usage_lf_em4x05_write(void) { 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 CmdEM4x05Dump(const char *Cmd) { uint8_t addr = 0; @@ -910,18 +910,173 @@ int CmdEM4x05Write(const char *Cmd) { if (!downloadSamplesEM()) return -1; - //todo: check response for 00001010 then write data for write confirmation! - + //attempt demod: //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; + } + + 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(uint8_t chipType, uint8_t cap, uint16_t custCode, uint32_t serial) { + switch (chipType) { + case 9: PrintAndLog("\n Chip Type: %u | EM4305", 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; + } + + 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 wordData) { + for (uint8_t i = 0; i < 15; i++) { + PrintAndLog(" Word: %02u | %s", i, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); + if (i==14) { + PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); + } + } +} + +//quick test for EM4x05/EM4x69 tag +bool EM4x05Block0Test(uint32_t *wordData) { +// return (EM4x05ReadWord_ext(0,0,false,wordData) == 1); + return false; +} + +int CmdEM4x05Info(const char *Cmd) { + /* + uint32_t pwd; + uint32_t wordData = 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); + + if ( pwd != 1 ) + usePwd = true; + + // read word 0 (chip info) + // block 0 can be read even without a password. + if ( !EM4x05Block0Test(&wordData) ) + return -1; + + uint8_t chipType = (wordData >> 1) & 0xF; + uint8_t cap = (wordData >> 5) & 3; + uint16_t custCode = (wordData >> 9) & 0x3FF; + + // read word 1 (serial #) doesn't need pwd + wordData = 0; + if (EM4x05ReadWord_ext(1, 0, false, &wordData) != 1) { + //failed, but continue anyway... + } + printEM4x05info(chipType, cap, custCode, wordData); + + // read word 4 (config block) + // needs password if one is set + wordData = 0; + if ( EM4x05ReadWord_ext(4, pwd, usePwd, &wordData) != 1 ) + return 0; + + printEM4x05config(wordData); + + // read word 14 and 15 to see which is being used for the protection bits + wordData = 0; + if ( EM4x05ReadWord_ext(14, pwd, usePwd, &wordData) != 1 ) { + return 0; + } + // if status bit says this is not the used protection word + if (!(wordData & 0x8000)) { + if ( EM4x05ReadWord_ext(15, pwd, usePwd, &wordData) != 1 ) { + return 0; + } + } + if (!(wordData & 0x8000)) { + //something went wrong + return 0; + } + printEM4x05ProtectionBits(wordData); + + */ + return 1; +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, @@ -930,9 +1085,10 @@ static command_t CommandTable[] = { {"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"}, - {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"}, {"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"}, {"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"}, {"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"},