X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/508b37ba9ce74eed6553ce59deb79f49b5311d11..59e933fc3f9c4283436b3b317b38c77db0e5d0a7:/client/cmdlfawid.c?ds=sidebyside diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c index e7dee935..a304cf7b 100644 --- a/client/cmdlfawid.c +++ b/client/cmdlfawid.c @@ -7,77 +7,113 @@ // at your option, any later version. See the LICENSE.txt file for the text of // the license. //----------------------------------------------------------------------------- -// Low frequency AWID26 commands +// Low frequency AWID26/50 commands //----------------------------------------------------------------------------- - -#include // sscanf -#include "proxmark3.h" // Definitions, USB controls, etc -#include "ui.h" // PrintAndLog -#include "cmdparser.h" // CmdsParse, CmdsHelp #include "cmdlfawid.h" // AWID function declarations -#include "lfdemod.h" // parityTest -#include "util.h" // weigandparity -#include "protocols.h" // for T55xx config register definitions -#include "cmdmain.h" - #include "sleep.h" static int CmdHelp(const char *Cmd); int usage_lf_awid_fskdemod(void) { - PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags."); + PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags."); PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued."); - PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card."); + PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card."); PrintAndLog(""); - PrintAndLog("Usage: lf awid fskdemod ['1']"); - PrintAndLog("Options :"); - PrintAndLog(" 1 : (optional) stop after reading a single card"); + PrintAndLog("Usage: lf awid fskdemod [h] [1]"); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" 1 : (optional) stop after reading a single card"); PrintAndLog(""); - PrintAndLog("Samples : lf awid fskdemod"); - PrintAndLog(" : lf awid fskdemod 1"); + PrintAndLog("Samples:"); + PrintAndLog(" lf awid fskdemod"); + PrintAndLog(" lf awid fskdemod 1"); return 0; } int usage_lf_awid_sim(void) { - PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number."); + PrintAndLog("Enables simulation of AWID card with specified facility-code and card number."); PrintAndLog("Simulation runs until the button is pressed or another USB command is issued."); - PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated."); PrintAndLog(""); - PrintAndLog("Usage: lf awid sim "); - PrintAndLog("Options :"); - PrintAndLog(" : 8-bit value AWID facility code"); - PrintAndLog(" : 16-bit value AWID card number"); + PrintAndLog("Usage: lf awid sim [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" : format length 26|50"); + PrintAndLog(" : 8|16bit value facility code"); + PrintAndLog(" : 16|32-bit value card number"); PrintAndLog(""); - PrintAndLog("Sample : lf awid sim 224 1337"); + PrintAndLog("Samples:"); + PrintAndLog(" lf awid sim 26 224 1337"); + PrintAndLog(" lf awid sim 50 2001 13371337"); return 0; } int usage_lf_awid_clone(void) { - PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7."); + PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7."); PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process."); - PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated."); PrintAndLog(""); - PrintAndLog("Usage: lf awid clone "); - PrintAndLog("Options :"); - PrintAndLog(" : 8-bit value AWID facility code"); - PrintAndLog(" : 16-bit value AWID card number"); - PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip"); + PrintAndLog("Usage: lf awid clone [h] [Q5]"); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" : format length 26|50"); + PrintAndLog(" : 8|16bit value facility code"); + PrintAndLog(" : 16|32-bit value card number"); + PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip"); PrintAndLog(""); - PrintAndLog("Sample : lf awid clone 224 1337"); + PrintAndLog("Samples:"); + PrintAndLog(" lf awid clone 26 224 1337"); + PrintAndLog(" lf awid clone 50 2001 13371337"); return 0; } int usage_lf_awid_brute(void){ - PrintAndLog("Enables bruteforce of AWID26 card with specified facility-code."); - PrintAndLog("Per AWID26 format, the facility-code (FC) is 8-bit and the card number is 16-bit."); + PrintAndLog("Enables bruteforce of AWID reader with specified facility-code."); + PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step"); + PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535"); PrintAndLog(""); - PrintAndLog("Usage: lf awid brute "); - PrintAndLog("Options :"); - PrintAndLog(" : 8-bit value AWID facility code"); + PrintAndLog("Usage: lf awid brute [h] a f c d "); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" a : format length 26|50"); + PrintAndLog(" f : 8|16bit value facility code"); + PrintAndLog(" c : (optional) cardnumber to start with, max 65535"); + PrintAndLog(" d : delay betweens attempts in ms. Default 1000ms"); PrintAndLog(""); - PrintAndLog("Sample : lf awid brute 224"); + PrintAndLog("Samples:"); + PrintAndLog(" lf awid brute a 26 f 224"); + PrintAndLog(" lf awid brute a 50 f 2001 d 2000"); + PrintAndLog(" lf awid brute a 50 f 2001 c 200 d 2000"); return 0; } +static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){ + + PrintAndLog("Trying FC: %u; CN: %u", fc, cn); + if ( !getAWIDBits(fmtlen, fc, cn, bs)) { + PrintAndLog("Error with tag bitstream generation."); + return FALSE; + } + + uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 + uint64_t arg2 = 50; // clk RF/50 invert=0 + UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}}; + memcpy(c.d.asBytes, bs, bs_len); + clearCommandBuffer(); + SendCommand(&c); + msleep(delay); + return TRUE; +} +static int sendPing(){ + UsbCommand resp; + UsbCommand ping = {CMD_PING}; + clearCommandBuffer(); + SendCommand(&ping); + if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) { + PrintAndLog("aborted via keyboard!"); + return 0; + } + PrintAndLog("Device didnt respond to ABORT"); + return 1; +} + int CmdAWIDDemodFSK(const char *Cmd) { int findone = 0; if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod(); @@ -90,48 +126,81 @@ int CmdAWIDDemodFSK(const char *Cmd) { } //refactored by marshmellow -int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) { +int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) { + + // the return bits, preamble 0000 0001 + bits[7] = 1; + uint8_t pre[66]; memset(pre, 0, sizeof(pre)); - AWIDBits[7]=1; - num_to_bytebits(26, 8, pre); - - uint8_t wiegand[24]; - num_to_bytebits(fc, 8, wiegand); - num_to_bytebits(cn, 16, wiegand+8); - wiegand_add_parity(pre+8, wiegand, 24); + // add formatlength + num_to_bytebits(fmtlen, 8, pre); + + // add facilitycode, cardnumber and wiegand parity bits + if ( fmtlen == 26 ) { + uint8_t wiegand[24]; + num_to_bytebits(fc, 8, wiegand); + num_to_bytebits(cn, 16, wiegand+8); + wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); + } else { + uint8_t wiegand[48]; + num_to_bytebits(fc, 16, wiegand); + num_to_bytebits(cn, 32, wiegand+16); + wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); + } + + // add AWID 4bit parity + size_t bitLen = addParity(pre, bits+8, 66, 4, 1); - size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1); if (bitLen != 88) return 0; - //for (uint8_t i = 0; i<3; i++){ - // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32)); - //} return 1; } int CmdAWIDSim(const char *Cmd) { - uint32_t fcode = 0, cnum = 0, fc=0, cn=0; + uint32_t fc = 0, cn = 0; + uint8_t fmtlen = 0; uint8_t bits[96]; uint8_t *bs = bits; size_t size = sizeof(bits); - memset(bs, 0, size); + memset(bs, 0x00, size); - uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 + uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8 uint64_t arg2 = 50; // clk RF/50 invert=0 - if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim(); - - fcode = (fc & 0x000000FF); - cnum = (cn & 0x0000FFFF); + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim(); - if (fc!=fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u", fc, fcode); - if (cn!=cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u", cn, cnum); + fmtlen = param_get8(Cmd, 0); + fc = param_get32ex(Cmd, 1, 0, 10); + cn = param_get32ex(Cmd, 2, 0, 10); + if ( !fc || !cn) return usage_lf_awid_sim(); - PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum); + switch(fmtlen) { + case 26: + if ((fc & 0xFF) != fc) { + fc &= 0xFF; + PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc); + } + + if ((cn & 0xFFFF) != cn) { + cn &= 0xFFFF; + PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn); + } + break; + case 50: + if ((fc & 0xFFFF) != fc) { + fc &= 0xFFFF; + PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc); + } + break; + default: break; + } + + PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn); PrintAndLog("Press pm3-button to abort simulation or run another command"); - if (!getAWIDBits(fc, cn, bs)) { + if (!getAWIDBits(fmtlen, fc, cn, bs)) { PrintAndLog("Error with tag bitstream generation."); return 1; } @@ -148,27 +217,47 @@ int CmdAWIDSim(const char *Cmd) { int CmdAWIDClone(const char *Cmd) { uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3< 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute(); + // limit fc according to selected format + switch(fmtlen) { + case 50: + if ((fc & 0xFFFF) != fc) { + fc &= 0xFFFF; + PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc); + } + break; + default: + if ((fc & 0xFF) != fc) { + fc &= 0xFF; + PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc); + } + break; + } - fc = param_get8(Cmd, 0); - if ( fc == 0) return usage_lf_awid_brute(); + // start - PrintAndLog("Bruteforceing AWID26"); - PrintAndLog("Press pm3-button to abort simulation or run another command"); + PrintAndLog("Bruteforceing AWID %d Reader", fmtlen); + PrintAndLog("Press pm3-button to abort simulation or press key"); - uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 - uint64_t arg2 = 50; // clk RF/50 invert=0 - UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; - - for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){ - if (ukbhit()) { - PrintAndLog("aborted via keyboard!"); - c.cmd = CMD_PING; - c.arg[0] = 0x00; - c.arg[1] = 0x00; - c.arg[2] = 0x00; - clearCommandBuffer(); - SendCommand(&c); - return 1; - } - - (void)getAWIDBits(fc, cn, bs); - memcpy(c.d.asBytes, bs, size); - clearCommandBuffer(); - SendCommand(&c); + uint16_t up = cn; + uint16_t down = cn; + + for (;;){ + + if (ukbhit()) return sendPing(); + + // Do one up + if ( up < 0xFFFF ) + if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1; - PrintAndLog("Trying FC: %u; CN: %u", fc, cn); - // pause - sleep(1); + // Do one down (if cardnumber is given) + if ( cn > 1 ) + if ( down > 0 ) + if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1; } return 0; } static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"}, - {"sim", CmdAWIDSim, 0, " -- AWID tag simulator"}, - {"clone", CmdAWIDClone, 0, " -- Clone AWID to T55x7"}, - {"brute", CmdAWIDBrute, 0, " -- bruteforce card number"}, + {"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"}, + {"sim", CmdAWIDSim, 0, "AWID tag simulator"}, + {"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"}, + {"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"}, {NULL, NULL, 0, NULL} }; int CmdLFAWID(const char *Cmd) { + clearCommandBuffer(); CmdsParse(CommandTable, Cmd); return 0; }