liz/flipperzero-firmware
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[FL-1396] Mifare Classic read (#1034)

Browse Source 
* rfal: add new data exchange function
* core: add FURI_BIT to common defines
* furi_hal_nfc: add data exchange with custom patiry bits
* lib: extend nfc common API
* assets: add mf classic dictionary
* lib: introduce mifare classic library
* nfc: add dictionary reader helper
* nfc worker: add worker events, add mifare classic read
* nfc: rework scenes with worker events
* nfc: add read mifare classic GUI
* nfc device: add mifare classic save
* nfc: add dictionary open fail scene
* nfc: mention resources
* stream: fix stream read line
* subghz: rework file read with fixed stream_read_line
* furi_hal_nfc: decrease communication timeout
* nfc: rework keys load from dictionary with file_stream
* nfc: add read mifare classic suggestion
* nfc: fix mifare classic read view
* nfc: fix index size
* nfc: add switch to no dictionary found scene
* nfc: add mifare classic load
* nfc: improve read mifare classic design
* mifare_classic: add proxmark3 mention
* nfc: format sources
* nfc: fix typos, add documentation
This commit is contained in:
gornekich
2022-03-24 01:14:34 +03:00
committed by GitHub
parent 46a894bc5c
commit eafeefb843
46 changed files with 3113 additions and 111 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
lib/nfc_protocols/nfca.c
View File

@@ -4,6 +4,8 @@
#define NFCA_CMD_RATS (0xE0U)
#define NFCA_CRC_INIT (0x6363)
typedef struct {
uint8_t cmd;
uint8_t param;
@@ -13,6 +15,27 @@ static uint8_t nfca_default_ats[] = {0x05, 0x78, 0x80, 0x80, 0x00};
static uint8_t nfca_sleep_req[] = {0x50, 0x00};
uint16_t nfca_get_crc16(uint8_t* buff, uint16_t len) {
uint16_t crc = NFCA_CRC_INIT;
uint8_t byte = 0;
for(uint8_t i = 0; i < len; i++) {
byte = buff[i];
byte ^= (uint8_t)(crc & 0xff);
byte ^= byte << 4;
crc = (crc >> 8) ^ (((uint16_t)byte) << 8) ^ (((uint16_t)byte) << 3) ^
(((uint16_t)byte) >> 4);
}
return crc;
}
void nfca_append_crc16(uint8_t* buff, uint16_t len) {
uint16_t crc = nfca_get_crc16(buff, len);
buff[len] = (uint8_t)crc;
buff[len + 1] = (uint8_t)(crc >> 8);
}
bool nfca_emulation_handler(
uint8_t* buff_rx,
uint16_t buff_rx_len,