flipperzero-firmware/lib/nfc/protocols/nfc_util.c
gornekich 9c59bcd776
[FL-2605] NFC new design (#1364)
* nfc: add new read scene

* lib: refactore nfc library

* mifare desfire: add read card fuction

* lib nfc: add auto read worker

* nfc: add supported cards

* nfc: add mifare classic read success scene

* nfc: add troyka support

* submodule: update protobuf

* nfc: mifare classic keys cache

* nfc: rework mifare classic key cache

* Correct spelling

* nfc: add user dictionary

* nfc: introduce block read map in fff

* nfc: rework dict attack

* nfc: improve dict attack

* nfc: rework mifare classic format

* nfc: rework MFC read with Reader

* nfc: add gui for MFC read success scene

* nfc: fix dict attack view gui

* nfc: add retry and exit confirm scenes

* nfc: add retry and exit scenes navigation

* nfc: check user dictionary

* nfc: remove unused scenes

* nfc: rename functions in nfc worker

* nfc: rename mf_classic_dict_attack -> dict_attack

* nfc: change scenes names
* nfc: remove scene tick events
* nfc: rework dict calls with buffer streams
* nfc: fix notifications
* nfc: fix mf desfire navigation
* nfc: remove notification from mf classic read success
* nfc: fix read sectors calculation
* nfc: add fallback for unknown card
* nfc: show file name while emulating
* nfc: fix build
* nfc: fix memory leak
* nfc: fix desfire read
* nfc: add no dict found navigation
* nfc: add read views
* nfc: update card fix
* nfc: fix access bytes save
* nfc: add exit and retry confirm to mf ultralight read success
* nfc: introduce detect reader
* nfc: change record open arg to macros
* nfc: fix start from archive

Co-authored-by: Astra <astra@astrra.space>
Co-authored-by: あく <alleteam@gmail.com>
2022-07-27 00:30:49 +09:00

48 lines
1.6 KiB
C

#include "nfc_util.h"
#include <furi.h>
static const uint8_t nfc_util_odd_byte_parity[256] = {
1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0,
1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1,
1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1,
0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0,
1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1,
0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0,
0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1,
0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1};
void nfc_util_num2bytes(uint64_t src, uint8_t len, uint8_t* dest) {
furi_assert(dest);
furi_assert(len <= 8);
while(len--) {
dest[len] = (uint8_t)src;
src >>= 8;
}
}
uint64_t nfc_util_bytes2num(uint8_t* src, uint8_t len) {
furi_assert(src);
furi_assert(len <= 8);
uint64_t res = 0;
while(len--) {
res = (res << 8) | (*src);
src++;
}
return res;
}
uint8_t nfc_util_even_parity32(uint32_t data) {
// data ^= data >> 16;
// data ^= data >> 8;
// return !nfc_util_odd_byte_parity[data];
return (__builtin_parity(data) & 0xFF);
}
uint8_t nfc_util_odd_parity8(uint8_t data) {
return nfc_util_odd_byte_parity[data];
}