X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4c36581b96dfb81c85f34a4229d82e51edeaf499..905c55de2bbe642412b47ed4e92344096c817fac:/client/cmdlfpresco.c diff --git a/client/cmdlfpresco.c b/client/cmdlfpresco.c index 20b42bc1..3afb3d24 100644 --- a/client/cmdlfpresco.c +++ b/client/cmdlfpresco.c @@ -13,12 +13,13 @@ static int CmdHelp(const char *Cmd); int usage_lf_presco_clone(void){ PrintAndLog("clone a Presco tag to a T55x7 tag."); - PrintAndLog("Usage: lf presco clone "); + PrintAndLog("Usage: lf presco clone d H "); PrintAndLog("Options :"); - PrintAndLog(" : 9 digit presco card number"); - //PrintAndLog(" : specify write to Q5 (t5555 instead of t55x7)"); + PrintAndLog(" d : 9 digit presco card ID"); + PrintAndLog(" H : 8 digit hex card number"); + PrintAndLog(" : specify write to Q5 (t5555 instead of t55x7)"); PrintAndLog(""); - PrintAndLog("Sample : lf presco clone 123456789"); + PrintAndLog("Sample : lf presco clone d 123456789"); return 0; } @@ -27,78 +28,131 @@ int usage_lf_presco_sim(void) { PrintAndLog("Simulation runs until the button is pressed or another USB command is issued."); PrintAndLog("Per presco format, the card number is 9 digit number and can contain *# chars. Larger values are truncated."); PrintAndLog(""); - PrintAndLog("Usage: lf presco sim "); + PrintAndLog("Usage: lf presco sim d or H "); PrintAndLog("Options :"); - PrintAndLog(" : 9 digit presco card number"); + PrintAndLog(" d : 9 digit presco card number"); + PrintAndLog(" H : 8 digit hex card number"); PrintAndLog(""); - PrintAndLog("Sample : lf presco sim 123456789"); + PrintAndLog("Sample : lf presco sim d 123456789"); return 0; } -// calc checksum -int GetWiegandFromPresco(const char *id, uint32_t *sitecode, uint32_t *usercode) { +// convert base 12 ID to sitecode & usercode & 8 bit other unknown code +int GetWiegandFromPresco(const char *Cmd, uint32_t *sitecode, uint32_t *usercode, uint32_t *fullcode, bool *Q5) { uint8_t val = 0; - for (int index =0; index < strlen(id); ++index) { - - // Get value from number string. - if ( id[index] == '*' ) val = 10; - if ( id[index] == '#') val = 11; - if ( id[index] >= 0x30 && id[index] <= 0x39 ) - val = id[index] - 0x30; - - *sitecode += val; - - // last digit is only added, not multipled. - if ( index < strlen(id)-1 ) - *sitecode *= 12; + bool hex = false, errors = false; + uint8_t cmdp = 0; + char id[11]; + int stringlen = 0; + memset(id, 0x00, sizeof(id)); + + while(param_getchar(Cmd, cmdp) != 0x00) { + switch(param_getchar(Cmd, cmdp)) { + case 'h': + return -1; + case 'H': + hex = true; + //get hex + *fullcode = param_get32ex(Cmd, cmdp+1, 0, 16); + cmdp+=2; + break; + case 'P': + case 'p': + //param get string int param_getstr(const char *line, int paramnum, char * str) + stringlen = param_getstr(Cmd, cmdp+1, id); + if (stringlen < 2) return -1; + cmdp+=2; + break; + case 'Q': + case 'q': + *Q5 = true; + cmdp++; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = 1; + break; + } + if(errors) break; } - *usercode = *sitecode % 65536; - *sitecode /= 16777216; - return 0; -} + // No args + if(cmdp == 0) errors = 1; -int GetPrescoBits(uint32_t sitecode, uint32_t usercode, uint8_t *prescoBits) { - uint8_t pre[66]; - memset(pre, 0, sizeof(pre)); - prescoBits[7]=1; - num_to_bytebits(26, 8, pre); + //Validations + if(errors) return -1; - uint8_t wiegand[24]; - num_to_bytebits(sitecode, 8, wiegand); - num_to_bytebits(usercode, 16, wiegand+8); + if (!hex) { + for (int index =0; index < strlen(id); ++index) { + + // Get value from number string. + if ( id[index] == '*' ) val = 10; + if ( id[index] == '#') val = 11; + if ( id[index] >= 0x30 && id[index] <= 0x39 ) + val = id[index] - 0x30; + + *fullcode += val; + + // last digit is only added, not multipled. + if ( index < strlen(id)-1 ) + *fullcode *= 12; + } + } - wiegand_add_parity(pre+8, wiegand, 24); - size_t bitLen = addParity(pre, prescoBits+8, 66, 4, 1); + *usercode = *fullcode & 0x0000FFFF; //% 65566 + *sitecode = (*fullcode >> 24) & 0x000000FF; // /= 16777216; + return 0; +} - if (bitLen != 88) return 0; +// calc not certain - intended to get bitstream for programming / sim +int GetPrescoBits(uint32_t fullcode, uint8_t *prescoBits) { + num_to_bytebits(0x10D00000, 32, prescoBits); + num_to_bytebits(0x00000000, 32, prescoBits+32); + num_to_bytebits(0x00000000, 32, prescoBits+64); + num_to_bytebits(fullcode , 32, prescoBits+96); return 1; } + //see ASKDemod for what args are accepted int CmdPrescoDemod(const char *Cmd) { - if (!ASKDemod(Cmd, false, false, 1)) { - if (g_debugMode) PrintAndLog("ASKDemod failed"); + bool st = true; + if (!ASKDemod_ext("32 0 0 0 0 a", FALSE, FALSE, 1, &st)) { + if (g_debugMode) PrintAndLog("DEBUG: Error Presco ASKDemod failed"); return 0; } size_t size = DemodBufferLen; - //call lfdemod.c demod for Viking + //call lfdemod.c demod for Presco int ans = PrescoDemod(DemodBuffer, &size); if (ans < 0) { - if (g_debugMode) PrintAndLog("Error Presco_Demod %d", ans); + if (g_debugMode){ + if (ans == -1) + PrintAndLog("DEBUG: Error - Presco: too few bits found"); + else if (ans == -2) + PrintAndLog("DEBUG: Error - Presco: preamble not found"); + else if (ans == -3) + PrintAndLog("DEBUG: Error - Presco: Size not correct: %d", size); + else + PrintAndLog("DEBUG: Error - Presco: ans: %d", ans); + } return 0; } - //got a good demod - uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32); - uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); - uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32); - PrintAndLog("Presco Tag Found: Card ID %08X", cardid); - PrintAndLog("Raw: %08X%08X", raw1,raw2); - setDemodBuf(DemodBuffer+ans, 64, 0); - - // uint32_t sitecode = 0, usercode = 0; - // GetWiegandFromPresco(id, &sitecode, &usercode); - // PrintAndLog8("SiteCode %d | UserCode %d", sitecode, usercode); + setDemodBuf(DemodBuffer, 128, ans); + setGrid_Clock(32); + //got a good demod + uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32); + uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32); + uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32); + uint32_t raw4 = bytebits_to_byte(DemodBuffer+96, 32); + uint32_t cardid = raw4; + PrintAndLog("Presco Tag Found: Card ID %08X, Raw: %08X%08X%08X%08X", cardid, raw1, raw2, raw3, raw4); + + uint32_t sitecode = 0, usercode = 0, fullcode = 0; + bool Q5 = false; + char cmd[12] = {0}; + sprintf(cmd, "H %08X", cardid); + GetWiegandFromPresco(cmd, &sitecode, &usercode, &fullcode, &Q5); + PrintAndLog("SiteCode %u, UserCode %u, FullCode, %08X", sitecode, usercode, fullcode); return 1; } @@ -109,28 +163,26 @@ int CmdPrescoRead(const char *Cmd) { // read lf silently CmdLFRead("s"); // get samples silently - getSamples("30000",false); + getSamples("12000", TRUE); // demod and output Presco ID return CmdPrescoDemod(Cmd); } +// takes base 12 ID converts to hex +// Or takes 8 digit hex ID int CmdPrescoClone(const char *Cmd) { - char cmdp = param_getchar(Cmd, 0); - if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_presco_clone(); - - uint32_t sitecode=0, usercode=0; - uint8_t bits[96]; - uint8_t *bs = bits; - memset(bs,0,sizeof(bits)); - uint32_t blocks[5] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | 4<>1) << T5555_BITRATE_SHIFT | 4 << T5555_MAXBLOCK_SHIFT | T5555_ST_TERMINATOR; + if ((sitecode & 0xFF) != sitecode) { sitecode &= 0xFF; PrintAndLog("Facility-Code Truncated to 8-bits (Presco): %u", sitecode); @@ -141,17 +193,12 @@ int CmdPrescoClone(const char *Cmd) { PrintAndLog("Card Number Truncated to 16-bits (Presco): %u", usercode); } - if ( !GetPrescoBits(sitecode, usercode, bs)) { - PrintAndLog("Error with tag bitstream generation."); - return 1; - } - - blocks[1] = bytebits_to_byte(bs,32); - blocks[2] = bytebits_to_byte(bs+32,32); - blocks[3] = bytebits_to_byte(bs+64,32); - blocks[4] = bytebits_to_byte(bs+96,32); + blocks[1] = 0x10D00000; //preamble + blocks[2] = 0x00000000; + blocks[3] = 0x00000000; + blocks[4] = fullcode; - PrintAndLog("Preparing to clone Presco to T55x7 with SiteCode: %u, UserCode: %u", sitecode, usercode); + PrintAndLog("Preparing to clone Presco to T55x7 with SiteCode: %u, UserCode: %u, FullCode: %08x", sitecode, usercode, fullcode); PrintAndLog("Blk | Data "); PrintAndLog("----+------------"); PrintAndLog(" 00 | 0x%08x", blocks[0]); @@ -160,54 +207,50 @@ int CmdPrescoClone(const char *Cmd) { PrintAndLog(" 03 | 0x%08x", blocks[3]); PrintAndLog(" 04 | 0x%08x", blocks[4]); - // UsbCommand resp; - // UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}}; - - // for (uint8_t i=0; i<5; i++) { - // c.arg[0] = blocks[i]; - // c.arg[1] = i; - // clearCommandBuffer(); - // SendCommand(&c); - // if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){ - // PrintAndLog("Error occurred, device did not respond during write operation."); - // return -1; - // } - // } + UsbCommand resp; + UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}}; + + for (int i=4; i>=0; i--) { + c.arg[0] = blocks[i]; + c.arg[1] = i; + clearCommandBuffer(); + SendCommand(&c); + if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){ + PrintAndLog("Error occurred, device did not respond during write operation."); + return -1; + } + } return 0; } +// takes base 12 ID converts to hex +// Or takes 8 digit hex ID int CmdPrescoSim(const char *Cmd) { - // uint32_t id = 0; - // uint64_t rawID = 0; - // uint8_t clk = 32, encoding = 1, separator = 0, invert = 0; - - // char cmdp = param_getchar(Cmd, 0); - // if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_presco_sim(); - - // id = param_get32ex(Cmd, 0, 0, 16); - // if (id == 0) return usage_lf_presco_sim(); + uint32_t sitecode=0, usercode=0, fullcode=0; + bool Q5=false; + // get wiegand from printed number. + if (GetWiegandFromPresco(Cmd, &sitecode, &usercode, &fullcode, &Q5) == -1) return usage_lf_presco_sim(); - //rawID = getVikingBits(id); + uint8_t clk = 32, encoding = 1, separator = 1, invert = 0; + uint16_t arg1, arg2; + size_t size = 128; + arg1 = clk << 8 | encoding; + arg2 = invert << 8 | separator; - // uint16_t arg1, arg2; - // size_t size = 64; - // arg1 = clk << 8 | encoding; - // arg2 = invert << 8 | separator; + PrintAndLog("Simulating Presco - SiteCode: %u, UserCode: %u, FullCode: %08X",sitecode, usercode, fullcode); - // PrintAndLog("Simulating - ID: %08X, Raw: %08X%08X",id,(uint32_t)(rawID >> 32),(uint32_t) (rawID & 0xFFFFFFFF)); - - // UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}}; - // num_to_bytebits(rawID, size, c.d.asBytes); - // clearCommandBuffer(); - // SendCommand(&c); + UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}}; + GetPrescoBits(fullcode, c.d.asBytes); + clearCommandBuffer(); + SendCommand(&c); return 0; } static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, {"read", CmdPrescoRead, 0, "Attempt to read and Extract tag data"}, - {"clone", CmdPrescoClone, 0, "<8 digit ID number> clone presco tag"}, -// {"sim", CmdPrescoSim, 0, "<8 digit ID number> simulate presco tag"}, + {"clone", CmdPrescoClone, 0, "d <9 digit ID> or h [Q5] clone presco tag"}, + {"sim", CmdPrescoSim, 0, "d <9 digit ID> or h simulate presco tag"}, {NULL, NULL, 0, NULL} };