X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f38a152863a5eb289acb169c5a38b4b77e87956e..464f6dc5715b7e26552a1e58a68506d9e658b53b:/client/cmdlfhid.c diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c index 9dd11f18..3eb96422 100644 --- a/client/cmdlfhid.c +++ b/client/cmdlfhid.c @@ -8,115 +8,457 @@ // Low frequency HID commands //----------------------------------------------------------------------------- -#include -#include -#include "proxmark3.h" -#include "ui.h" -#include "graph.h" -#include "cmdparser.h" #include "cmdlfhid.h" +#ifndef BITS +# define BITS 96 +#endif + static int CmdHelp(const char *Cmd); -int CmdHIDDemod(const char *Cmd) -{ - if (GraphTraceLen < 4800) { - PrintAndLog("too short; need at least 4800 samples"); - return 0; - } - - GraphTraceLen = 4800; - for (int i = 0; i < GraphTraceLen; ++i) { - if (GraphBuffer[i] < 0) { - GraphBuffer[i] = 0; - } else { - GraphBuffer[i] = 1; - } - } - RepaintGraphWindow(); - return 0; -} - -int CmdHIDDemodFSK(const char *Cmd) -{ - UsbCommand c={CMD_HID_DEMOD_FSK}; - SendCommand(&c); - return 0; -} - -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); - - UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}}; - 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); - } - - PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); - - 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; - - SendCommand(&c); - return 0; -} - -static command_t CommandTable[] = -{ - {"help", CmdHelp, 1, "This help"}, - {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"}, - {"fskdemod", CmdHIDDemodFSK, 1, "Realtime HID FSK demodulator"}, - {"sim", CmdHIDSim, 1, " -- HID tag simulator"}, - {"clone", CmdHIDClone, 1, " ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"}, - {NULL, NULL, 0, NULL} +int usage_lf_hid_wiegand(void){ + PrintAndLog("This command converts facility code/card number to Wiegand code"); + PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]"); + + PrintAndLog("Options:"); + PrintAndLog(" h - This help"); + PrintAndLog(" OEM - OEM number / site code"); + PrintAndLog(" FC - facility code"); + PrintAndLog(" CN - card number"); + PrintAndLog("Examples:"); + PrintAndLog(" lf hid wiegand 0 101 2001"); + return 0; +} +int usage_lf_hid_sim(void){ + PrintAndLog("HID Tag simulator"); + PrintAndLog(""); + PrintAndLog("Usage: lf hid sim [h] [ID]"); + PrintAndLog("Options:"); + PrintAndLog(" h - This help"); + PrintAndLog(" ID - HID id"); + PrintAndLog("Examples:"); + PrintAndLog(" lf hid sim 224"); + return 0; +} +int usage_lf_hid_clone(void){ + PrintAndLog("Clone HID to T55x7. Tag must be on antenna. "); + PrintAndLog(""); + PrintAndLog("Usage: lf hid clone [h] [ID] "); + PrintAndLog("Options:"); + PrintAndLog(" h - This help"); + PrintAndLog(" ID - HID id"); + PrintAndLog(" L - 84bit ID"); + PrintAndLog("Examples:"); + PrintAndLog(" lf hid clone 224"); + PrintAndLog(" lf hid clone 224 L"); + return 0; +} +int usage_lf_hid_brute(void){ + PrintAndLog("Enables bruteforce of HID readers 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 hid brute [h] a f c d "); + PrintAndLog("Options :"); + PrintAndLog(" h : This help"); + PrintAndLog(" a : 26|33|34|35|37|40|44|84"); + PrintAndLog(" f : 8-bit value HID 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 hid brute a 26 f 224"); + PrintAndLog(" lf hid brute a 26 f 21 d 2000"); + PrintAndLog(" lf hid brute a 26 f 21 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){ + + PrintAndLog("Trying FC: %u; CN: %u", fc, cn); + + calcWiegand( fmtlen, fc, cn, bs); + + uint64_t arg1 = bytebits_to_byte(bs,32); + uint64_t arg2 = bytebits_to_byte(bs+32,32); + UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}}; + clearCommandBuffer(); + SendCommand(&c); + msleep(delay); + sendPing(); + return TRUE; +} + +int CmdHIDDemodFSK(const char *Cmd) { + uint8_t findone = ( Cmd[0] == '1' ) ? 1 : 0; + UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}}; + clearCommandBuffer(); + SendCommand(&c); + return 0; +} + +int CmdHIDSim(const char *Cmd) { + unsigned int hi = 0, lo = 0; + int n = 0, i = 0; + + uint8_t ctmp = param_getchar(Cmd, 0); + if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_sim(); + + 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 CmdHIDClone(const char *Cmd) { + + uint32_t hi2 = 0, hi = 0, lo = 0; + int n = 0, i = 0; + UsbCommand c; + + uint8_t ctmp = param_getchar(Cmd, 0); + if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_clone(); + + 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("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); + + 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; +} +// struct to handle wiegand +typedef struct { + uint8_t FormatLen; + uint8_t SiteCode; + uint8_t FacilityCode; + uint8_t CardNumber; + uint8_t* Wiegand; + size_t Wiegand_n; + } wiegand_t; + +static void addHIDMarker(uint8_t fmtlen, uint8_t *out) { + // temp array + uint8_t arr[BITS]; + memset(arr, 0, BITS); + + // copy inpu + uint8_t pos = sizeof(arr)-fmtlen; + memcpy(arr+pos, out, fmtlen); + + switch(fmtlen) { + case 26:{ + // start sentinel, BITS-bit 27 = 1 + arr[BITS-27] = 1; + // fmt smaller than 37 used, bit37 = 1 + arr[BITS-38] = 1; + memcpy(out, arr, BITS); + break; + } + case 34: + // start sentinel, BITS-bit 27 = 1 + arr[BITS-35] = 1; + + // fmt smaller than 37 used, bit37 = 1 + arr[BITS-38] = 1; + memcpy(out, arr, BITS); + break; + default:break; + } +} + +// static void getParity34(uint32_t *hi, uint32_t *lo){ + // uint32_t result = 0; + // int i; + + // // even parity + // for (i = 7;i >= 0;i--) + // result ^= (*hi >> i) & i; + // for (i = 31;i >= 24;i--) + // result ^= (*lo >> i) & 1; + + // *hi |= result << 2; + + // // odd parity bit + // result = 0; + // for (i = 23;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, uint8_t *out){ +static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){ + uint8_t wiegand[24]; + num_to_bytebits(fc, 8, wiegand); + num_to_bytebits(cardno, 16, wiegand+8); + wiegand_add_parity(out, wiegand, sizeof(wiegand) ); +} +// static void calc33(uint16_t fc, uint32_t cardno, uint8_t *out){ +// } +static void calc34(uint16_t fc, uint32_t cardno, uint8_t *out){ + uint8_t wiegand[32]; + num_to_bytebits(fc, 16, wiegand); + num_to_bytebits(cardno, 16, wiegand + 16); + wiegand_add_parity(out, wiegand, sizeof(wiegand) ); +} +// static void calc35(uint16_t fc, uint32_t cardno, uint8_t *out){ + // *lo = ((cardno & 0xFFFFF) << 1) | fc << 21; + // *hi = (1 << 5) | ((fc >> 11) & 1); +// } +static void calc37S(uint16_t fc, uint32_t cardno, uint8_t *out){ + // FC 2 - 17 - 16 bit + // cardno 18 - 36 - 19 bit + // Even P1 1 - 19 + // Odd P37 19 - 36 + uint8_t wiegand[35]; + num_to_bytebits(fc, 16, wiegand); + num_to_bytebits(cardno, 19, wiegand + 16); + wiegand_add_parity(out, wiegand, sizeof(wiegand) ); +} +static void calc37H(uint64_t cardno, uint8_t *out){ + // SC NONE + // cardno 1-35 34 bits + // Even Parity 0th bit 1-18 + // Odd Parity 36th bit 19-35 + uint8_t wiegand[37]; + num_to_bytebits( (uint32_t)(cardno >> 32), 2, wiegand); + num_to_bytebits( (uint32_t)(cardno >> 0), 32, wiegand + 2); + wiegand_add_parity(out, wiegand, sizeof(wiegand) ); + + printf("%x %x\n", (uint32_t)(cardno >> 32), (uint32_t)cardno ); +} +// static void calc40(uint64_t cardno, uint8_t *out){ + // cardno = (cardno & 0xFFFFFFFFFF); + // *lo = ((cardno & 0xFFFFFFFF) << 1 ); + // *hi = (cardno >> 31); +// } + +void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){ + uint32_t cn32 = (cardno & 0xFFFFFFFF); + switch ( fmtlen ) { + case 26: calc26(fc, cn32, bits); break; + // case 33 : calc33(fc, cn32, bits); break; + case 34: calc34(fc, cn32, bits); break; + // case 35 : calc35(fc, cn32, bits); break; + case 37: calc37S(fc, cn32, bits); break; + case 38: calc37H(cardno, bits); break; + // case 40 : calc40(cardno, bits); break; + // case 44 : { break; } + // case 84 : { break; } + default: break; + } +} + +int CmdHIDWiegand(const char *Cmd) { + uint32_t oem = 0, fc = 0; + uint64_t cardnum = 0; + uint64_t blocks = 0, wiegand = 0; + + uint8_t bits[BITS]; + uint8_t *bs = bits; + memset(bs, 0, sizeof(bits)); + + 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 fmtlen[] = {26,33,34,35,37,38,40}; + + PrintAndLog("HID | OEM | FC | CN | Wiegand | HID Formatted"); + PrintAndLog("----+-----+------+---------+-----------+--------------------"); + for (uint8_t i = 0; i < sizeof(fmtlen); i++){ + memset(bits, 0x00, sizeof(bits)); + calcWiegand( fmtlen[i], fc, cardnum, bs); + printf("ice:: %s \n", sprint_bin(bs, fmtlen[i])); + wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32); + + addHIDMarker(fmtlen[i], bs); + printf("ice:: %s\n", sprint_bin(bs, BITS)); + blocks = (uint64_t)bytebits_to_byte(bs+32, 32) << 32 | bytebits_to_byte(bs+64, 32); + uint8_t shifts = 64-fmtlen[i]; + wiegand >>= shifts; + + PrintAndLog(" %u | %03u | %03u | %llu | %llX | %llX", + fmtlen[i], + oem, + fc, + cardnum, + wiegand, + blocks + ); + } + PrintAndLog("----+-----+-----+-------+-----------+--------------------"); + return 0; +} + +int CmdHIDBrute(const char *Cmd){ + + bool errors = false; + uint32_t fc = 0, cn = 0, delay = 1000; + uint8_t fmtlen = 0; + uint8_t bits[96]; + uint8_t *bs = bits; + memset(bs, 0, sizeof(bits)); + uint8_t cmdp = 0; + + while(param_getchar(Cmd, cmdp) != 0x00 && !errors) { + switch(param_getchar(Cmd, cmdp)) { + case 'h': + case 'H': + return usage_lf_hid_brute(); + case 'f': + case 'F': + fc = param_get32ex(Cmd ,cmdp+1, 0, 10); + if ( !fc ) + errors = true; + cmdp += 2; + break; + case 'd': + case 'D': + // delay between attemps, defaults to 1000ms. + delay = param_get32ex(Cmd, cmdp+1, 1000, 10); + cmdp += 2; + break; + case 'c': + case 'C': + cn = param_get32ex(Cmd, cmdp+1, 0, 10); + // truncate cardnumber. + cn &= 0xFFFF; + cmdp += 2; + break; + case 'a': + case 'A': + fmtlen = param_get8(Cmd, cmdp+1); + cmdp += 2; + bool is_ftm_ok = FALSE; + uint8_t ftms[] = {26,33,34,35,37}; + for ( uint8_t i = 0; i < sizeof(ftms); i++){ + if ( ftms[i] == fmtlen ) { + is_ftm_ok = TRUE; + } + } + // negated + errors = !is_ftm_ok; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = true; + break; + } + } + if ( fc == 0 ) errors = true; + if ( errors ) return usage_lf_hid_brute(); + + PrintAndLog("Brute-forcing HID reader"); + PrintAndLog("Press pm3-button to abort simulation or run another command"); + + uint16_t up = cn; + uint16_t down = cn; + + for (;;){ + + if ( offline ) { + printf("Device offline\n"); + return 2; + } + + if (ukbhit()) { + PrintAndLog("aborted via keyboard!"); + return sendPing(); + } + + // Do one up + if ( up < 0xFFFF ) + if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1; + + // Do one down (if cardnumber is given) + if ( cn > 1 ) + if ( down > 1 ) + if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1; + } + return 0; +} + +static command_t CommandTable[] = { + {"help", CmdHelp, 1, "This help"}, + {"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"}, + {"sim", CmdHIDSim, 0, "HID tag simulator"}, + {"clone", CmdHIDClone, 0, "Clone HID to T55x7"}, + {"wiegand", CmdHIDWiegand, 1, "Convert facility code/card number to Wiegand code"}, + {"brute", CmdHIDBrute, 0, "Bruteforce card number against reader"}, + {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; }