X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/52f2df615b806434ec7017349d6920a5cb9ab1c2..ff9c043da29150aa785723326537ba93ddac0614:/client/cmdlfawid.c diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c index 3b189efe..9883437a 100644 --- a/client/cmdlfawid.c +++ b/client/cmdlfawid.c @@ -7,223 +7,296 @@ // 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 "cmdmain.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("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(""); - PrintAndLog("Usage: lf awid fskdemod ['1']"); - PrintAndLog("Options :"); - PrintAndLog(" 1 : (optional) stop after reading a single card"); - PrintAndLog(""); - PrintAndLog(" sample : lf awid fskdemod"); - PrintAndLog(" : lf awid fskdemod 1"); - return 0; + 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 AWID card."); + PrintAndLog(""); + 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:"); + 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("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(""); - PrintAndLog("sample : lf awid sim 224 1337"); - return 0; + 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(""); + PrintAndLog("Usage: lf awid sim [h] "); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" : format length 26|34|37|50"); + PrintAndLog(" : 8|16bit value facility code"); + PrintAndLog(" : 16|32-bit value card number"); + PrintAndLog(""); + 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("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(""); - PrintAndLog("sample : lf awid clone 224 1337"); - return 0; + 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(""); + PrintAndLog("Usage: lf awid clone [h] [Q5]"); + PrintAndLog("Options:"); + PrintAndLog(" h : This help"); + PrintAndLog(" : format length 26|34|37|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("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 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 [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("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 int sendPing(void){ + UsbCommand ping = {CMD_PING, {1, 2, 3}}; + SendCommand(&ping); + SendCommand(&ping); + SendCommand(&ping); + clearCommandBuffer(); + UsbCommand resp; + if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) + return 0; + return 1; +} + +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); + sendPing(); + return TRUE; } int CmdAWIDDemodFSK(const char *Cmd) { - int findone = 0; - if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod(); - - if (Cmd[0] == '1') findone = 1; - - UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}}; - clearCommandBuffer(); - SendCommand(&c); - return 0; + + if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod(); + uint8_t findone = (Cmd[0] == '1') ? 1 : 0; + UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}}; + clearCommandBuffer(); + SendCommand(&c); + return 0; } -int getAWIDBits(unsigned int fc, unsigned int cn, uint8_t *AWIDBits) -{ - //int i; - uint32_t fcode = (fc & 0x000000FF); - uint32_t cnum = (cn & 0x0000FFFF); - uint32_t uBits = 0; - - if (fcode != fc) - PrintAndLog("NOTE: Facility code truncated for AWID26 format (8-bit facility code)"); - if (cnum!=cn) - PrintAndLog("NOTE: Card number was truncated for AWID26 format (16-bit card number)"); +int CmdAWIDRead(const char *Cmd) { + CmdLFRead("s"); + getSamples("12000", TRUE); + return CmdFSKdemodAWID(Cmd); +} - uint8_t pre[] = {0x01, 0x1D, 0x80, 0x00,0x00,0x00,0x00, 0x11, 0x11, 0x11, 0x11, 0x11}; - memcpy(AWIDBits, pre , sizeof(pre)); - - // AWIDBits[0] = 0x01; // 6-bit Preamble with 2 parity bits - // AWIDBits[1] = 0x1D; // First byte from card format (26-bit) plus parity bits - // AWIDBits[2] = 0x80; // Set the next two bits as 0b10 to finish card format +//refactored by marshmellow +int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) { - // for (i = 7; i<12; i++) - // AWIDBits[i]=0x11; - - uBits = (fcode<<4) + (cnum>>12); - - if (!parityTest(uBits,12,0)) AWIDBits[2] |= (1<<5); // If not already even parity, set bit to make even - - uBits = AWIDBits[2]>>5; - - if (!parityTest(uBits, 3, 1)) AWIDBits[2] |= (1<<4); - - uBits = fcode>>5; // first 3 bits of facility-code - AWIDBits[2] += (uBits<<1); - - if (!parityTest(uBits, 3, 1)) AWIDBits[2]++; // Set parity bit to make odd parity - - uBits = (fcode & 0x1C)>>2; - AWIDBits[3] = 0; - - if (!parityTest(uBits,3,1)) AWIDBits[3] |= (1<<4); - - AWIDBits[3] += (uBits<<5); - uBits = ((fcode & 0x3)<<1) + ((cnum & 0x8000)>>15); // Grab/shift 2 LSBs from facility code and add shifted MSB from cardnum - - if (!parityTest(uBits,3,1)) AWIDBits[3]++; // Set LSB for parity - - AWIDBits[3]+= (uBits<<1); - uBits = (cnum & 0x7000)>>12; - AWIDBits[4] = uBits<<5; - - if (!parityTest(uBits,3,1)) AWIDBits[4] |= (1<<4); - - uBits = (cnum & 0x0E00)>>9; - AWIDBits[4] += (uBits<<1); - - if (!parityTest(uBits,3,1)) AWIDBits[4]++; // Set LSB for parity - - uBits = (cnum & 0x1C0)>>6; // Next bits from card number - AWIDBits[5]=(uBits<<5); + // the return bits, preamble 0000 0001 + bits[7] = 1; - if (!parityTest(uBits,3,1)) AWIDBits[5] |= (1<<4); // Set odd parity bit as needed - - uBits = (cnum & 0x38)>>3; - AWIDBits[5]+= (uBits<<1); - - if (!parityTest(uBits,3,1)) AWIDBits[5]++; // Set odd parity bit as needed - - uBits = (cnum & 0x7); // Last three bits from card number! - AWIDBits[6] = (uBits<<5); - - if (!parityTest(uBits,3,1)) AWIDBits[6] |= (1<<4); - - uBits = (cnum & 0x0FFF); + uint8_t pre[66]; + memset(pre, 0, sizeof(pre)); + + // add formatlength + num_to_bytebits(fmtlen, 8, pre); - if (!parityTest(uBits,12,1)) - AWIDBits[6] |= (1<<3); - else - AWIDBits[6]++; + // add facilitycode, cardnumber and wiegand parity bits + switch (fmtlen) { + case 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)); + break; + } + case 34:{ + uint8_t wiegand[32]; + num_to_bytebits(fc, 8, wiegand); + num_to_bytebits(cn, 24, wiegand+8); + wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); + break; + } + case 37:{ + uint8_t wiegand[31]; + num_to_bytebits(fc, 13, wiegand); + num_to_bytebits(cn, 18, wiegand+13); + wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); + break; + } + case 50: { + 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)); + break; + } + } + // add AWID 4bit parity + size_t bitLen = addParity(pre, bits+8, 66, 4, 1); + + if (bitLen != 88) return 0; return 1; } -int CmdAWIDSim(const char *Cmd) -{ - uint32_t fcode = 0, cnum = 0, fc=0, cn=0, i=0; - uint8_t bits[12]; - uint8_t *bs=bits; +static void verify_values(uint8_t *fmtlen, uint32_t *fc, uint32_t *cn){ + switch (*fmtlen) { + case 50: + if ((*fc & 0xFFFF) != *fc) { + *fc &= 0xFFFF; + PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc); + } + break; + case 37: + if ((*fc & 0x1FFF) != *fc) { + *fc &= 0x1FFF; + PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc); + } + if ((*cn & 0x3FFFF) != *cn) { + *cn &= 0x3FFFF; + PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn); + } + break; + case 34: + if ((*fc & 0xFF) != *fc) { + *fc &= 0xFF; + PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc); + } + if ((*cn & 0xFFFFFF) != *cn) { + *cn &= 0xFFFFFF; + PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn); + } + break; + case 26: + default: + *fmtlen = 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; + } +} - uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 +int CmdAWIDSim(const char *Cmd) { + 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, 0x00, size); + + 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(); + + 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(); - 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); + verify_values(&fmtlen, &fc, &cn); - PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum); + 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; } // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0 - PrintAndLog("Running 'lf simfsk c 50 H 10 L 8 d %s'", sprint_hex(bs, sizeof(bs))); - // arg1 --- fcHigh<<8 + fcLow // arg2 --- Inversion and clk setting // 96 --- Bitstream length: 96-bits == 12 bytes - UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, 96}}; - - for (i=0; i < 96; i++) - c.d.asBytes[i] = (bs[i/8] & (1<<(7-(i%8)))) ? 1 : 0; - + UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; + memcpy(c.d.asBytes, bs, size); clearCommandBuffer(); SendCommand(&c); return 0; } -int CmdAWIDClone(const char *Cmd) -{ - uint32_t blocks[4] = {0x00107060, 0, 0, 0x11111111}; - uint32_t fc=0, cn=0, i=0; - uint8_t bits[12]; +int CmdAWIDClone(const char *Cmd) { + uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<>1) << T5555_BITRATE_SHIFT | 3< 1 ) + if ( down > 1 ) + 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 (tag must be in range of antenna)"}, + {"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"}, + {"read", CmdAWIDRead, 0, "Attempt to read and extract tag data"}, + {"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) -{ +int CmdLFAWID(const char *Cmd) { + clearCommandBuffer(); CmdsParse(CommandTable, Cmd); return 0; } -int CmdHelp(const char *Cmd) -{ +int CmdHelp(const char *Cmd) { CmdsHelp(CommandTable); return 0; }