X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c9ad641b61c6fc5e4b77b181ad9b58b8723f56c6..5594c6215e9df0d8e9b77acc389be7ccdadd23e0:/client/cmdlft55xx.c?ds=inline diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c index b287ce28..2a096cd0 100644 --- a/client/cmdlft55xx.c +++ b/client/cmdlft55xx.c @@ -7,23 +7,24 @@ // Low frequency T55xx commands //----------------------------------------------------------------------------- +#include "cmdlft55xx.h" + #include #include #include #include #include -#include "proxmark3.h" +#include "comms.h" #include "ui.h" #include "graph.h" #include "cmdmain.h" #include "cmdparser.h" #include "cmddata.h" #include "cmdlf.h" -#include "cmdlft55xx.h" #include "util.h" -#include "data.h" #include "lfdemod.h" #include "cmdhf14a.h" //for getTagInfo +#include "protocols.h" #define T55x7_CONFIGURATION_BLOCK 0x00 #define T55x7_PAGE0 0x00 @@ -78,12 +79,13 @@ int usage_t55xx_read(){ return 0; } int usage_t55xx_write(){ - PrintAndLog("Usage: lf t55xx write [b ] [d ] [p ] [1]"); + PrintAndLog("Usage: lf t55xx write [b ] [d ] [p ] [1] [t]"); PrintAndLog("Options:"); PrintAndLog(" b - block number to write. Between 0-7"); PrintAndLog(" d - 4 bytes of data to write (8 hex characters)"); PrintAndLog(" p - OPTIONAL password 4bytes (8 hex characters)"); PrintAndLog(" 1 - OPTIONAL write Page 1 instead of Page 0"); + PrintAndLog(" t - OPTIONAL test mode write - ****DANGER****"); PrintAndLog(""); PrintAndLog("Examples:"); PrintAndLog(" lf t55xx write b 3 d 11223344 - write 11223344 to block 3"); @@ -138,15 +140,29 @@ int usage_t55xx_detect(){ PrintAndLog(""); return 0; } +int usage_t55xx_detectP1(){ + PrintAndLog("Command: Detect Page 1 of a t55xx chip"); + PrintAndLog("Usage: lf t55xx p1detect [1] [p ]"); + PrintAndLog("Options:"); + PrintAndLog(" 1 - if set, use Graphbuffer otherwise read data from tag."); + PrintAndLog(" p - OPTIONAL password (8 hex characters)"); + PrintAndLog(""); + PrintAndLog("Examples:"); + PrintAndLog(" lf t55xx p1detect"); + PrintAndLog(" lf t55xx p1detect 1"); + PrintAndLog(" lf t55xx p1detect p 11223344"); + PrintAndLog(""); + return 0; +} int usage_t55xx_wakup(){ - PrintAndLog("Usage: lf t55xx wakeup [h] p "); + PrintAndLog("Usage: lf t55xx wakeup [h] "); PrintAndLog("This commands send the Answer-On-Request command and leaves the readerfield ON afterwards."); PrintAndLog("Options:"); PrintAndLog(" h - this help"); - PrintAndLog(" p - password 4bytes (8 hex symbols)"); + PrintAndLog(" - [required] password 4bytes (8 hex symbols)"); PrintAndLog(""); PrintAndLog("Examples:"); - PrintAndLog(" lf t55xx wakeup p 11223344 - send wakeup password"); + PrintAndLog(" lf t55xx wakeup 11223344 - send wakeup password"); return 0; } int usage_t55xx_bruteforce(){ @@ -191,7 +207,7 @@ void printT5xxHeader(uint8_t page){ int CmdT55xxSetConfig(const char *Cmd) { uint8_t offset = 0; - char modulation[5] = {0x00}; + char modulation[6] = {0x00}; char tmp = 0x00; uint8_t bitRate = 0; uint8_t rates[9] = {8,16,32,40,50,64,100,128,0}; @@ -220,7 +236,7 @@ int CmdT55xxSetConfig(const char *Cmd) { cmdp+=2; break; case 'd': - param_getstr(Cmd, cmdp+1, modulation); + param_getstr(Cmd, cmdp+1, modulation, sizeof(modulation)); cmdp += 2; if ( strcmp(modulation, "FSK" ) == 0) { @@ -403,23 +419,23 @@ bool DecodeT55xxBlock(){ break; case DEMOD_PSK1: // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) - save_restoreGB(1); + save_restoreGB(GRAPH_SAVE); CmdLtrim("160"); snprintf(cmdStr, sizeof(buf),"%d %d 6", bitRate[config.bitrate], config.inverted ); ans = PSKDemod(cmdStr, false); //undo trim samples - save_restoreGB(0); + save_restoreGB(GRAPH_RESTORE); break; case DEMOD_PSK2: //inverted won't affect this case DEMOD_PSK3: //not fully implemented // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) - save_restoreGB(1); + save_restoreGB(GRAPH_SAVE); CmdLtrim("160"); snprintf(cmdStr, sizeof(buf),"%d 0 6", bitRate[config.bitrate] ); ans = PSKDemod(cmdStr, false); psk1TOpsk2(DemodBuffer, DemodBufferLen); //undo trim samples - save_restoreGB(0); + save_restoreGB(GRAPH_RESTORE); break; case DEMOD_NRZ: snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted ); @@ -490,9 +506,10 @@ bool tryDetectModulation(){ uint8_t hits = 0; t55xx_conf_block_t tests[15]; int bitRate=0; - uint8_t fc1 = 0, fc2 = 0, clk=0; - if (GetFskClock("", false, false)){ - fskClocks(&fc1, &fc2, &clk, false); + uint8_t fc1 = 0, fc2 = 0, ans = 0; + int clk = 0, firstClockEdge = 0; + ans = fskClocks(&fc1, &fc2, (uint8_t *)&clk, false, &firstClockEdge); + if (ans && ((fc1==10 && fc2==8) || (fc1==8 && fc2==5))) { if ( FSKrawDemod("0 0", false) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) { tests[hits].modulation = DEMOD_FSK; if (fc1==8 && fc2 == 5) @@ -553,10 +570,8 @@ bool tryDetectModulation(){ ++hits; } } - //undo trim from ask - //save_restoreGB(0); clk = GetNrzClock("", false, false); - if (clk>0) { + if (clk>8) { //clock of rf/8 is likely a false positive, so don't use it. if ( NRZrawDemod("0 0 1", false) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) { tests[hits].modulation = DEMOD_NRZ; tests[hits].bitrate = bitRate; @@ -576,12 +591,12 @@ bool tryDetectModulation(){ } } - // allow undo - // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) - save_restoreGB(1); - CmdLtrim("160"); clk = GetPskClock("", false, false); if (clk>0) { + // allow undo + save_restoreGB(GRAPH_SAVE); + // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) + CmdLtrim("160"); if ( PSKDemod("0 0 6", false) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) { tests[hits].modulation = DEMOD_PSK1; tests[hits].bitrate = bitRate; @@ -622,9 +637,9 @@ bool tryDetectModulation(){ ++hits; } } // inverse waves does not affect this demod + //undo trim samples + save_restoreGB(GRAPH_RESTORE); } - //undo trim samples - save_restoreGB(0); } if ( hits == 1) { config.modulation = tests[0].modulation; @@ -780,9 +795,7 @@ bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5) // moved test to here, since this gets most faults first. if ( resv > 0x00) continue; - uint8_t xtRate = PackBits(si, 3, DemodBuffer); si += 3; //extended mode part of rate - int bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate - if (bitRate > 7) continue; + int bitRate = PackBits(si, 6, DemodBuffer); si += 6; //bit rate (includes extended mode part of rate) uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1; //uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr @@ -792,12 +805,15 @@ bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5) //if extended mode bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? true : false; - if (!extMode){ - if (xtRate) continue; //nml01 || nml02 || caused issues on noralys tags + if (!extMode) { + if (bitRate > 7) continue; + if (!testBitRate(bitRate, clk)) continue; + } else { //extended mode bitrate = same function to calc bitrate as em4x05 + if (EM4x05_GET_BITRATE(bitRate) != clk) continue; + } //test modulation if (!testModulation(mode, modread)) continue; - if (!testBitRate(bitRate, clk)) continue; *fndBitRate = bitRate; *offset = idx; *Q5 = false; @@ -854,7 +870,7 @@ int special(const char *Cmd) { int printConfiguration( t55xx_conf_block_t b){ PrintAndLog("Chip Type : %s", (b.Q5) ? "T5555(Q5)" : "T55x7"); PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) ); - PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate) ); + PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate, (b.block0 & T55x7_X_MODE && (b.block0>>28==6 || b.block0>>28==9))) ); PrintAndLog("Inverted : %s", (b.inverted) ? "Yes" : "No" ); PrintAndLog("Offset : %d", b.offset); PrintAndLog("Seq. Term. : %s", (b.ST) ? "Yes" : "No" ); @@ -865,26 +881,11 @@ int printConfiguration( t55xx_conf_block_t b){ int CmdT55xxWakeUp(const char *Cmd) { uint32_t password = 0; - uint8_t cmdp = 0; - bool errors = true; - while(param_getchar(Cmd, cmdp) != 0x00) { - switch(param_getchar(Cmd, cmdp)) { - case 'h': - case 'H': - return usage_t55xx_wakup(); - case 'p': - case 'P': - password = param_get32ex(Cmd, cmdp+1, 0xFFFFFFFF, 16); - cmdp += 2; - errors = false; - break; - default: - PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); - errors = true; - break; - } - } - if (errors) return usage_t55xx_wakup(); + if ( strlen(Cmd) <= 0 ) return usage_t55xx_wakup(); + char cmdp = param_getchar(Cmd, 0); + if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_wakup(); + + password = param_get32ex(Cmd, 0, 0, 16); UsbCommand c = {CMD_T55XX_WAKEUP, {password, 0, 0}}; clearCommandBuffer(); @@ -900,6 +901,7 @@ int CmdT55xxWriteBlock(const char *Cmd) { bool usepwd = false; bool page1 = false; bool gotdata = false; + bool testMode = false; bool errors = false; uint8_t cmdp = 0; while(param_getchar(Cmd, cmdp) != 0x00 && !errors) { @@ -924,6 +926,11 @@ int CmdT55xxWriteBlock(const char *Cmd) { usepwd = true; cmdp += 2; break; + case 't': + case 'T': + testMode = true; + cmdp++; + break; case '1': page1 = true; cmdp++; @@ -944,6 +951,7 @@ int CmdT55xxWriteBlock(const char *Cmd) { UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}}; UsbCommand resp; c.d.asBytes[0] = (page1) ? 0x2 : 0; + c.d.asBytes[0] |= (testMode) ? 0x4 : 0; char pwdStr[16] = {0}; snprintf(pwdStr, sizeof(pwdStr), "pwd: 0x%08X", password); @@ -1168,7 +1176,7 @@ int CmdT55xxInfo(const char *Cmd){ PrintAndLog("-------------------------------------------------------------"); PrintAndLog(" Safer key : %s", GetSaferStr(safer)); PrintAndLog(" reserved : %d", resv); - PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr)); + PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr, extend)); PrintAndLog(" eXtended mode : %s", (extend) ? "Yes - Warning":"No"); PrintAndLog(" Modulation : %s", GetModulationStr(datamod)); PrintAndLog(" PSK clock frequency : %d", pskcf); @@ -1195,7 +1203,7 @@ int CmdT55xxDump(const char *Cmd){ bool override = false; if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_dump(); - bool usepwd = ( strlen(Cmd) > 0); + bool usepwd = ( strlen(Cmd) > 0); if ( usepwd ){ password = param_get32ex(Cmd, 0, 0, 16); if (param_getchar(Cmd, 1) =='o' ) @@ -1226,28 +1234,28 @@ int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password ){ PrintAndLog("command execution time out"); return 0; } - - uint8_t got[12000]; - GetFromBigBuf(got,sizeof(got),0); - WaitForResponse(CMD_ACK,NULL); - setGraphBuf(got, sizeof(got)); + getSamples(12000,true); return 1; } -char * GetBitRateStr(uint32_t id) { +char * GetBitRateStr(uint32_t id, bool xmode) { static char buf[25]; char *retStr = buf; - switch (id) { - case 0: snprintf(retStr,sizeof(buf),"%d - RF/8",id); break; - case 1: snprintf(retStr,sizeof(buf),"%d - RF/16",id); break; - case 2: snprintf(retStr,sizeof(buf),"%d - RF/32",id); break; - case 3: snprintf(retStr,sizeof(buf),"%d - RF/40",id); break; - case 4: snprintf(retStr,sizeof(buf),"%d - RF/50",id); break; - case 5: snprintf(retStr,sizeof(buf),"%d - RF/64",id); break; - case 6: snprintf(retStr,sizeof(buf),"%d - RF/100",id); break; - case 7: snprintf(retStr,sizeof(buf),"%d - RF/128",id); break; - default: snprintf(retStr,sizeof(buf),"%d - (Unknown)",id); break; + if (xmode) { //xmode bitrate calc is same as em4x05 calc + snprintf(retStr,sizeof(buf),"%d - RF/%d", id, EM4x05_GET_BITRATE(id)); + } else { + switch (id) { + case 0: snprintf(retStr,sizeof(buf),"%d - RF/8",id); break; + case 1: snprintf(retStr,sizeof(buf),"%d - RF/16",id); break; + case 2: snprintf(retStr,sizeof(buf),"%d - RF/32",id); break; + case 3: snprintf(retStr,sizeof(buf),"%d - RF/40",id); break; + case 4: snprintf(retStr,sizeof(buf),"%d - RF/50",id); break; + case 5: snprintf(retStr,sizeof(buf),"%d - RF/64",id); break; + case 6: snprintf(retStr,sizeof(buf),"%d - RF/100",id); break; + case 7: snprintf(retStr,sizeof(buf),"%d - RF/128",id); break; + default: snprintf(retStr,sizeof(buf),"%d - (Unknown)",id); break; + } } return buf; } @@ -1347,8 +1355,7 @@ int CmdResetRead(const char *Cmd) { } uint8_t got[BIGBUF_SIZE-1]; - GetFromBigBuf(got,sizeof(got),0); - WaitForResponse(CMD_ACK,NULL); + GetFromBigBuf(got, sizeof(got), 0, NULL, -1 , 0); setGraphBuf(got, sizeof(got)); return 1; } @@ -1425,7 +1432,7 @@ int CmdT55xxBruteForce(const char *Cmd) { //The line start with # is comment, skip if( buf[0]=='#' ) continue; - if (!isxdigit(buf[0])) { + if (!isxdigit((unsigned char)buf[0])) { PrintAndLog("File content error. '%s' must include 8 HEX symbols", buf); continue; } @@ -1540,11 +1547,160 @@ int CmdT55xxBruteForce(const char *Cmd) { return 0; } +// note length of data returned is different for different chips. +// some return all page 1 (64 bits) and others return just that block (32 bits) +// unfortunately the 64 bits makes this more likely to get a false positive... +bool tryDetectP1(bool getData) { + uint8_t preamble[] = {1,1,1,0,0,0,0,0,0,0,0,1,0,1,0,1}; + size_t startIdx = 0; + uint8_t fc1 = 0, fc2 = 0, ans = 0; + int clk = 0, firstClockEdge = 0; + bool st = true; + + if ( getData ) { + if ( !AquireData(T55x7_PAGE1, 1, false, 0) ) + return false; + } + + // try fsk clock detect. if successful it cannot be any other type of modulation... (in theory...) + ans = fskClocks(&fc1, &fc2, (uint8_t *)&clk, false, &firstClockEdge); + if (ans && ((fc1==10 && fc2==8) || (fc1==8 && fc2==5))) { + if ( FSKrawDemod("0 0", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + if ( FSKrawDemod("0 1", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + return false; + } + + // try psk clock detect. if successful it cannot be any other type of modulation... (in theory...) + clk = GetPskClock("", false, false); + if (clk>0) { + // allow undo + // save_restoreGB(1); + // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise) + //CmdLtrim("160"); + if ( PSKDemod("0 0 6", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + //save_restoreGB(0); + return true; + } + if ( PSKDemod("0 1 6", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + //save_restoreGB(0); + return true; + } + // PSK2 - needs a call to psk1TOpsk2. + if ( PSKDemod("0 0 6", false)) { + psk1TOpsk2(DemodBuffer, DemodBufferLen); + if (preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + //save_restoreGB(0); + return true; + } + } // inverse waves does not affect PSK2 demod + //undo trim samples + //save_restoreGB(0); + // no other modulation clocks = 2 or 4 so quit searching + if (fc1 != 8) return false; + } + + // try ask clock detect. it could be another type even if successful. + clk = GetAskClock("", false, false); + if (clk>0) { + if ( ASKDemod_ext("0 0 1", false, false, 1, &st) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + st = true; + if ( ASKDemod_ext("0 1 1", false, false, 1, &st) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + if ( ASKbiphaseDemod("0 0 0 2", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + if ( ASKbiphaseDemod("0 0 1 2", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + } + + // try NRZ clock detect. it could be another type even if successful. + clk = GetNrzClock("", false, false); //has the most false positives :( + if (clk>0) { + if ( NRZrawDemod("0 0 1", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + if ( NRZrawDemod("0 1 1", false) && + preambleSearchEx(DemodBuffer,preamble,sizeof(preamble),&DemodBufferLen,&startIdx,false) && + (DemodBufferLen == 32 || DemodBufferLen == 64) ) { + return true; + } + } + return false; +} +// does this need to be a callable command? +int CmdT55xxDetectPage1(const char *Cmd){ + bool errors = false; + bool useGB = false; + bool usepwd = false; + uint32_t password = 0; + uint8_t cmdp = 0; + + while(param_getchar(Cmd, cmdp) != 0x00 && !errors) { + switch(param_getchar(Cmd, cmdp)) { + case 'h': + case 'H': + return usage_t55xx_detectP1(); + case 'p': + case 'P': + password = param_get32ex(Cmd, cmdp+1, 0, 16); + usepwd = true; + cmdp += 2; + break; + case '1': + // use Graphbuffer data + useGB = true; + cmdp++; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = true; + break; + } + } + if (errors) return usage_t55xx_detectP1(); + + if ( !useGB ) { + if ( !AquireData(T55x7_PAGE1, 1, usepwd, password) ) + return false; + } + bool success = tryDetectP1(false); + if (success) PrintAndLog("T55xx chip found!"); + return success; +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"bruteforce",CmdT55xxBruteForce,0, " [i <*.dic>] Simple bruteforce attack to find password"}, {"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"}, {"detect", CmdT55xxDetect, 1, "[1] Try detecting the tag modulation from reading the configuration block."}, + {"p1detect", CmdT55xxDetectPage1,1, "[1] Try detecting if this is a t55xx tag by reading page 1"}, {"read", CmdT55xxReadBlock, 0, "b p [password] [o] [1] -- Read T55xx block data. Optional [p password], [override], [page1]"}, {"resetread", CmdResetRead, 0, "Send Reset Cmd then lf read the stream to attempt to identify the start of it (needs a demod and/or plot after)"}, {"write", CmdT55xxWriteBlock,0, "b d p [password] [1] -- Write T55xx block data. Optional [p password], [page1]"},