unleashed-firmware/applications/main/nfc/helpers/mf_user_dict.c
あく 0bc400a3ae
Code Cleanup: unused includes, useless checks, unused variables, etc... (#3696)
* Remove unnecessary checks
* Sublime: never insert missing headers
* Cleanup furi defines use
* Cleanup startup. Cleanup linker scripts. Explicitly define all interrupts hadlers, including uninmplemented one.
* Startup routine in C
* Drop assembler startup
* Move linker defines to stm32wb55_linker.h, cleanup naming, unify usage. Mpu: protect last 32b of main stack. Document various obscure things.
* Move furi_hal_switch documentation to appropriate place, use 0x0 for updater jump.
* UnitTests: move all temporary test files into tmp folder

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Co-authored-by: SG <who.just.the.doctor@gmail.com>
2024-06-11 03:04:29 +10:00

81 lines
2.3 KiB
C

#include "mf_user_dict.h"
#include <toolbox/keys_dict.h>
#include <nfc/protocols/mf_classic/mf_classic.h>
#include <furi/furi.h>
#define NFC_APP_FOLDER ANY_PATH("nfc")
#define NFC_APP_MF_CLASSIC_DICT_USER_PATH (NFC_APP_FOLDER "/assets/mf_classic_dict_user.nfc")
struct MfUserDict {
size_t keys_num;
MfClassicKey* keys_arr;
};
MfUserDict* mf_user_dict_alloc(size_t max_keys_to_load) {
MfUserDict* instance = malloc(sizeof(MfUserDict));
KeysDict* dict = keys_dict_alloc(
NFC_APP_MF_CLASSIC_DICT_USER_PATH, KeysDictModeOpenAlways, sizeof(MfClassicKey));
size_t dict_keys_num = keys_dict_get_total_keys(dict);
instance->keys_num = MIN(max_keys_to_load, dict_keys_num);
if(instance->keys_num > 0) {
instance->keys_arr = malloc(instance->keys_num * sizeof(MfClassicKey));
for(size_t i = 0; i < instance->keys_num; i++) {
bool key_loaded =
keys_dict_get_next_key(dict, instance->keys_arr[i].data, sizeof(MfClassicKey));
furi_assert(key_loaded);
}
}
keys_dict_free(dict);
return instance;
}
void mf_user_dict_free(MfUserDict* instance) {
furi_assert(instance);
if(instance->keys_num > 0) {
free(instance->keys_arr);
}
free(instance);
}
size_t mf_user_dict_get_keys_cnt(MfUserDict* instance) {
furi_assert(instance);
return instance->keys_num;
}
void mf_user_dict_get_key_str(MfUserDict* instance, uint32_t index, FuriString* str) {
furi_assert(instance);
furi_assert(str);
furi_assert(index < instance->keys_num);
furi_assert(instance->keys_arr);
furi_string_reset(str);
for(size_t i = 0; i < sizeof(MfClassicKey); i++) {
furi_string_cat_printf(str, "%02X", instance->keys_arr[index].data[i]);
}
}
bool mf_user_dict_delete_key(MfUserDict* instance, uint32_t index) {
furi_assert(instance);
furi_assert(index < instance->keys_num);
furi_assert(instance->keys_arr);
KeysDict* dict = keys_dict_alloc(
NFC_APP_MF_CLASSIC_DICT_USER_PATH, KeysDictModeOpenAlways, sizeof(MfClassicKey));
bool key_delete_success =
keys_dict_delete_key(dict, instance->keys_arr[index].data, sizeof(MfClassicKey));
keys_dict_free(dict);
if(key_delete_success) {
instance->keys_num--;
}
return key_delete_success;
}