From a0a61c91ccefed75187e810cca0e3bcb319ecdcf Mon Sep 17 00:00:00 2001 From: iceman1001 Date: Mon, 9 Jan 2017 22:17:43 +0100 Subject: [PATCH] CHG: adding the HID wiegand calcs again. Still need to set the bit37 indicator etc. --- client/cmdlfhid.c | 198 +++++++++++++++++++--------------------------- client/cmdlfhid.h | 4 +- 2 files changed, 85 insertions(+), 117 deletions(-) diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c index d4fd1522..3abbfdec 100644 --- a/client/cmdlfhid.c +++ b/client/cmdlfhid.c @@ -175,28 +175,22 @@ typedef struct { size_t Wiegand_n; } wiegand_t; -// static void addHIDMarker(uint8_t fmtlen, uint8_t *out) { - -// } -//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; - - // // 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){ +static void addHIDMarker(uint8_t fmtlen, uint8_t *out) { + + switch(fmtlen) { + case 26: + //*out |= (1 << 26); // why this? + //*out |= (1 << 37); // bit format for hid? + break; + case 34: + // set bit format for less than 37 bit format + // 5+32= 1 + //*hi = (1 << 5) | (fc >> 15); + break; + default:break; + } +} -// } // static void getParity34(uint32_t *hi, uint32_t *lo){ // uint32_t result = 0; // int i; @@ -216,28 +210,6 @@ typedef struct { // *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; - - // // 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; @@ -257,48 +229,46 @@ typedef struct { // } //static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){ -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) ); - -// *out |= (1 << 26); // why this? -// *out |= (1 << 37); // bit format for hid? } // 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 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, 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 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, uint32_t *hi, uint32_t *lo){ // cardno = (cardno & 0xFFFFFFFFFF); // *lo = ((cardno & 0xFFFFFFFF) << 1 ); @@ -308,51 +278,48 @@ void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){ void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){ // uint32_t hi = 0, lo = 0; - // uint32_t cn32 = (cardno & 0xFFFFFFFF); - // switch ( fmtlen ) { - // case 26 : { - // calc26(fc, cn32, bits); - // addHIDFormatMarker(fmtlen, bits); - // break; - // } + uint32_t cn32 = (cardno & 0xFFFFFFFF); + switch ( fmtlen ) { + case 26 : { + calc26(fc, cn32, bits); + //addHIDFormatMarker(fmtlen, bits); + break; + } // case 33 : { // // calc33(fc, cn32, hi, lo); // // getParity33(hi, lo); // break; // } - // case 34 : { - // calc34(fc, cn32, hi, lo); - // getParity34(hi, lo); - // break; - // } + case 34 : { + calc34(fc, cn32, bits); + //addHIDFormatMarker(fmtlen, bits); + break; + } // case 35 : { // calc35(fc, cn32, hi, lo); // getParity35(hi, lo); // break; // } - // case 37 : { - // calc37S(fc, cn32, hi, lo); - // getParity37S(hi, lo); - // break; - // } - // case 38 : { - // calc37H(cn32, hi, lo); - // getParity37H(hi, lo); - // break; - // } + case 37 : { + calc37S(fc, cn32, bits); + //addHIDFormatMarker(fmtlen, bits); + break; + } + case 38 : { + calc37H(cardno, bits); + break; + } // case 40 : calc40(cardno, hi, lo); break; // case 44 : { break; } // case 84 : { break; } - // } - + default: break; + } } int CmdHIDWiegand(const char *Cmd) { uint32_t oem = 0, fc = 0; uint64_t cardnum = 0; - - uint32_t blocks[2] = {0,0}; - uint32_t wiegand[2] = {0,0}; + uint64_t blocks = 0, wiegand = 0; uint8_t bits[96]; uint8_t *bs = bits; @@ -365,24 +332,25 @@ int CmdHIDWiegand(const char *Cmd) { fc = param_get32ex(Cmd, 1, 0, 10); cardnum = param_get64ex(Cmd, 2, 0, 10); - // - uint8_t ftmlen[] = {26,33,34,35,37,38,40}; + 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(ftmlen); i++){ - calcWiegand( ftmlen[i], fc, cardnum, bs); - blocks[0] = bytebits_to_byte(bs,32); - blocks[1] = bytebits_to_byte(bs+32,32); - PrintAndLog(" %d | %d | %d | %llu | %08X%08X | %08X%08X ", - ftmlen, + 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); + wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32); + blocks = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs+32, 32); + uint8_t shifts = 64-fmtlen[i]; + wiegand >>= shifts; + + PrintAndLog(" %u | %03u | %03u | %llu | %llX | %llX", + fmtlen[i], oem, fc, cardnum, - wiegand[0], - wiegand[1], - blocks[0], - blocks[1] + wiegand, + blocks ); } PrintAndLog("----+-----+-----+-------+-----------+--------------------"); diff --git a/client/cmdlfhid.h b/client/cmdlfhid.h index 57603b2f..5f540967 100644 --- a/client/cmdlfhid.h +++ b/client/cmdlfhid.h @@ -17,7 +17,7 @@ #include "ui.h" #include "graph.h" #include "cmdparser.h" -#include "util.h" +#include "util.h" // wiegand_add_parity etc #include "cmdmain.h" #include "sleep.h" #include "lfdemod.h" @@ -35,6 +35,6 @@ int usage_lf_hid_sim(void); int usage_lf_hid_clone(void); int usage_lf_hid_brute(void); -void calc26(uint16_t fc, uint32_t cardno, uint8_t *out); +//void calc26(uint16_t fc, uint32_t cardno, uint8_t *out); void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits); #endif -- 2.39.5