X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a501c82b196b614295a6e3bf7481da84affb0d8e..b82c2f85e457f361b119d21a31f3263ac3489cc8:/client/cmdlfhid.c diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c index ce21ddc8..00a4722a 100644 --- a/client/cmdlfhid.c +++ b/client/cmdlfhid.c @@ -15,9 +15,38 @@ #include "graph.h" #include "cmdparser.h" #include "cmdlfhid.h" +#include "util.h" +#include "cmdmain.h" +#include "sleep.h" static int CmdHelp(const char *Cmd); +int usage_lf_hid_wiegand(void){ + PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]"); + PrintAndLog("This command converts facility code/card number to Wiegand code"); + PrintAndLog("Options:"); + PrintAndLog(" h - This help"); + PrintAndLog(" OEM - OEM number"); + PrintAndLog(" FC - facility code"); + PrintAndLog(" CN - card number"); + PrintAndLog("Examples:"); + PrintAndLog(" lf hid wiegand 0 101 2001"); + return 0; +} +int usage_lf_hid_brute(void){ + PrintAndLog("Enables bruteforce of HID readers with specified facility code."); + PrintAndLog("Different formatlength is supported"); + PrintAndLog("This is a incremental attack against reader."); + PrintAndLog(""); + PrintAndLog("Usage: lf hid brute "); + PrintAndLog("Options :"); + PrintAndLog(" - 26|33|34|35|37|40|44|84"); + PrintAndLog(" - 8-bit value HID facility code"); + PrintAndLog(""); + PrintAndLog("Sample : lf hid brute 26 224"); + return 0; +} +/* int CmdHIDDemod(const char *Cmd) { if (GraphTraceLen < 4800) { @@ -36,90 +65,320 @@ int CmdHIDDemod(const char *Cmd) RepaintGraphWindow(); return 0; } +*/ +int CmdHIDDemodFSK(const char *Cmd) { + int findone = ( Cmd[0] == '1' ) ? 1 : 0; + UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}}; + clearCommandBuffer(); + SendCommand(&c); + return 0; +} -int CmdHIDDemodFSK(const char *Cmd) -{ - int findone = 0; - if(Cmd[0]=='1') findone=1; - UsbCommand c = {CMD_HID_DEMOD_FSK}; - c.arg[0]=findone; +int CmdHIDSim(const char *Cmd) { + unsigned int hi = 0, lo = 0; + int n = 0, i = 0; + + while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { + hi = (hi << 4) | (lo >> 28); + lo = (lo << 4) | (n & 0xf); + } + + PrintAndLog("Emulating tag with ID %x%16x", hi, lo); + PrintAndLog("Press pm3-button to abort simulation"); + + UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}}; + clearCommandBuffer(); SendCommand(&c); return 0; } -int CmdHIDSim(const char *Cmd) -{ - unsigned int hi = 0, lo = 0; - int n = 0, i = 0; +int CmdHIDClone(const char *Cmd) { + unsigned int hi2 = 0, hi = 0, lo = 0; + int n = 0, i = 0; + UsbCommand c; - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - hi = (hi << 4) | (lo >> 28); - lo = (lo << 4) | (n & 0xf); - } + if (strchr(Cmd,'l') != 0) { + while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { + hi2 = (hi2 << 4) | (hi >> 28); + hi = (hi << 4) | (lo >> 28); + lo = (lo << 4) | (n & 0xf); + } - PrintAndLog("Emulating tag with ID %x%16x", hi, lo); + PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); - UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}}; - SendCommand(&c); - return 0; + c.d.asBytes[0] = 1; + } else { + while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { + hi = (hi << 4) | (lo >> 28); + lo = (lo << 4) | (n & 0xf); + } + + PrintAndLog("Cloning tag with ID %x%08x", hi, lo); + + hi2 = 0; + c.d.asBytes[0] = 0; + } + + c.cmd = CMD_HID_CLONE_TAG; + c.arg[0] = hi2; + c.arg[1] = hi; + c.arg[2] = lo; + + clearCommandBuffer(); + SendCommand(&c); + return 0; } -int CmdHIDClone(const char *Cmd) -{ - unsigned int hi2 = 0, hi = 0, lo = 0; - int n = 0, i = 0; - UsbCommand c; - - if (strchr(Cmd,'l') != 0) { - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - hi2 = (hi2 << 4) | (hi >> 28); - hi = (hi << 4) | (lo >> 28); - lo = (lo << 4) | (n & 0xf); - } +static void getParity26(uint32_t *hi, uint32_t *lo){ + uint32_t result = 0; + int i; + // even parity + for (i = 24;i >= 13;i--) + result ^= (*lo >> i) & 1; + // even parity 26th bit + *lo |= result << 25; - PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); + // odd parity + result = 0; + for (i = 12;i >= 1;i--) + result ^= (*lo >> i) & 1; + *lo |= !result; +} +static void getParity33(uint32_t *hi, uint32_t *lo){ - c.d.asBytes[0] = 1; - } - else { - while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { - hi = (hi << 4) | (lo >> 28); - lo = (lo << 4) | (n & 0xf); - } +} +static void getParity34(uint32_t *hi, uint32_t *lo){ + uint32_t result = 0; + int i; - PrintAndLog("Cloning tag with ID %x%08x", hi, lo); + // even parity + for (i = 7;i >= 0;i--) + result ^= (*hi >> i) & i; + for (i = 31;i >= 24;i--) + result ^= (*lo >> i) & 1; - hi2 = 0; - c.d.asBytes[0] = 0; - } + *hi |= result << 2; - c.cmd = CMD_HID_CLONE_TAG; - c.arg[0] = hi2; - c.arg[1] = hi; - c.arg[2] = lo; + // odd parity bit + result = 0; + for (i = 23;i >= 1;i--) + result ^= (*lo >> i) & 1; - SendCommand(&c); - return 0; + *lo |= !result; +} +static void getParity35(uint32_t *hi, uint32_t *lo){ } +static void getParity37S(uint32_t *hi,uint32_t *lo){ + uint32_t result = 0; + int i; -static command_t CommandTable[] = -{ - {"help", CmdHelp, 1, "This help"}, - {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"}, - {"fskdemod", CmdHIDDemodFSK, 0, "['1'] Realtime HID FSK demodulator (option '1' for one tag only)"}, - {"sim", CmdHIDSim, 0, " -- HID tag simulator"}, - {"clone", CmdHIDClone, 0, " ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"}, - {NULL, NULL, 0, NULL} + // even parity + for (i = 4; i >= 0; i--) + result ^= (*hi >> i) & 1; + + for (i = 31; i >= 20; i--) + result ^= (*lo >> i) & 1; + + *hi |= result; + + // odd parity + result = 0; + for (i = 19; i >= 1; i--) + result ^= (*lo >> i) & 1; + + *lo |= result; +} +static void getParity37H(uint32_t *hi, uint32_t *lo){ + uint32_t result = 0; + int i; + + // even parity + for (i = 4;i >= 0;i--) + result ^= (*hi >> i) & 1; + for (i = 31;i >= 20;i--) + result ^= (*lo >> i) & 1; + *hi |= result << 4; + + // odd parity + result = 0; + for (i = 19;i >= 1;i--) + result ^= (*lo >> i) & 1; + *lo |= result; +} + +static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ + *lo = ((cardno & 0xFFFF) << 1) | ((fc & 0xFF) << 17) | (1 << 26); + *hi = (1 << 5); +} +static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ + +} +static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ + // put card number first bit 1 .. 20 // + *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17); + // set bit format for less than 37 bit format + *hi = (1 << 5) | (fc >> 15); +} +static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ + *lo = ((cardno & 0xFFFFF) << 1) | fc << 21; + *hi = (1 << 5) | ((fc >> 11) & 1); +} +static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ + // FC 2 - 17 - 16 bit + // cardno 18 - 36 - 19 bit + // Even P1 1 - 19 + // Odd P37 19 - 36 + + fc = fc & 0xFFFF; + *lo = ((fc << 20) | (cardno & 0x7FFFF) << 1); + *hi = (fc >> 12); +} +static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){ + // SC NONE + // cardno 1-35 34 bits + // Even Parity 0th bit 1-18 + // Odd Parity 36th bit 19-35 + cardno = (cardno & 0x00000003FFFFFFFF); + *lo = (cardno << 1); + *hi = (cardno >> 31); +} +static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){ + cardno = (cardno & 0xFFFFFFFFFF); + *lo = ((cardno & 0xFFFFFFFF) << 1 ); + *hi = (cardno >> 31); +} + +static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint32_t *hi, uint32_t *lo){ + + uint32_t cn = (cardno & 0xFFFFFFFF); + switch ( fmtlen ) { + case 26 : { + calc26(fc, cn, hi, lo); + getParity26(hi, lo); + break; + } + case 33 : { + calc33(fc, cn, hi, lo); + getParity33(hi, lo); + break; + } + case 34 : { + calc34(fc, cn, hi, lo); + getParity34(hi, lo); + break; + } + case 35 : { + calc35(fc, cn, hi, lo); + getParity35(hi, lo); + break; + } + case 37 : { + calc37S(fc, cn, hi, lo); + getParity37S(hi, lo); + break; + } + case 38 : { + calc37H(cn, hi, lo); + getParity37H(hi, lo); + break; + } + case 40 : calc40(cardno, hi, lo); break; + case 44 : { break; } + case 84 : { break; } + } +} + +int CmdHIDWiegand(const char *Cmd) { + uint32_t oem; + uint32_t fc, lo = 0, hi = 0; + uint64_t cardnum = 0; + + uint8_t ctmp = param_getchar(Cmd, 0); + if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand(); + + oem = param_get8(Cmd, 0); + fc = param_get32ex(Cmd, 1, 0, 10); + cardnum = param_get64ex(Cmd, 2, 0, 10); + + uint8_t ftmlen[] = {26,33,34,35,37,38,40}; + for (uint8_t i = 0; i < sizeof(ftmlen); i++){ + calcWiegand( ftmlen[i], fc, cardnum, &hi, &lo); + PrintAndLog("HID %d bit | OEM: %d FC: %d CN: %llu | Wiegand code: %08X%08X", ftmlen[i], oem, fc, cardnum, hi, lo); + } + return 0; +} + +int CmdHIDBrute(const char *Cmd){ + + bool error = TRUE; + uint8_t fc = 0, fmtlen = 0; + uint32_t hi = 0, lo = 0; + + UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}}; + + char cmdp = param_getchar(Cmd, 0); + if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute(); + + fmtlen = param_get8(Cmd, 0); + uint8_t ftms[] = {26,33,34,35,37}; + for ( uint8_t i = 0; i < sizeof(ftms); i++){ + if ( ftms[i] == fmtlen ) { + error = FALSE; + } + } + + if ( error ) return usage_lf_hid_brute(); + + fc = param_get8(Cmd, 1); + if ( fc == 0) return usage_lf_hid_brute(); + + PrintAndLog("Brute-forcing HID reader"); + PrintAndLog("Press pm3-button to abort simulation or run another command"); + + 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; + } + + calcWiegand( fmtlen, fc, cn, &hi, &lo); + + c.arg[0] = hi; + c.arg[1] = lo; + clearCommandBuffer(); + SendCommand(&c); + + PrintAndLog("Trying FC: %u; CN: %u", fc, cn); + // pause + sleep(1); + } + return 0; +} + +static command_t CommandTable[] = { + {"help", CmdHelp, 1, "This help"}, +// {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"}, + {"fskdemod",CmdHIDDemodFSK, 0, "['1'] Realtime HID FSK demodulator (option '1' for one tag only)"}, + {"sim", CmdHIDSim, 0, " -- HID tag simulator"}, + {"clone", CmdHIDClone, 0, " ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"}, + {"wiegand", CmdHIDWiegand, 0, " -- convert facility code/card number to Wiegand code"}, + {"brute", CmdHIDBrute, 0, " -- brute force card number"}, + {NULL, NULL, 0, NULL} }; -int CmdLFHID(const char *Cmd) -{ - CmdsParse(CommandTable, Cmd); - return 0; +int CmdLFHID(const char *Cmd) { + clearCommandBuffer(); + CmdsParse(CommandTable, Cmd); + return 0; } -int CmdHelp(const char *Cmd) -{ - CmdsHelp(CommandTable); - return 0; +int CmdHelp(const char *Cmd) { + CmdsHelp(CommandTable); + return 0; }