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Merge branch 'nfc-parsers' into dev

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MX 2024-01-06 01:23:48 +03:00
commit b77f41949c
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1 changed files with 35 additions and 8 deletions
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43
applications/main/nfc/plugins/supported_cards/mykey.c
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@ -16,6 +16,35 @@ static bool mykey_has_lockid(const St25tbData* data) {
return (data->blocks[5] & 0xFF) == 0x7F; return (data->blocks[5] & 0xFF) == 0x7F;
} }
static bool check_invalid_low_nibble(uint8_t value) {
uint8_t value_lo = value & 0xF;
return value_lo >= 0xA;
}
static bool mykey_get_production_date(
const St25tbData* data,
uint16_t* year_ptr,
uint8_t* month_ptr,
uint8_t* day_ptr) {
uint32_t date_block = data->blocks[8];
uint8_t year = date_block >> 16 & 0xFF;
uint8_t month = date_block >> 8 & 0xFF;
uint8_t day = date_block & 0xFF;
// dates are coded in a peculiar way, the hexadecimal value should in fact be interpreted as a decimal value
// so anything in range A-F is invalid.
if(day > 0x31 || month > 0x12 || day == 0 || month == 0 || year == 0) {
return false;
}
if(check_invalid_low_nibble(day) || check_invalid_low_nibble(month) ||
check_invalid_low_nibble(year) || check_invalid_low_nibble(year >> 4)) {
return false;
}
*year_ptr = year + 0x2000;
*month_ptr = month;
*day_ptr = day;
return true;
}
static bool mykey_parse(const NfcDevice* device, FuriString* parsed_data) { static bool mykey_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_assert(device); furi_assert(device);
furi_assert(parsed_data); furi_assert(parsed_data);
@ -34,7 +63,10 @@ static bool mykey_parse(const NfcDevice* device, FuriString* parsed_data) {
} }
} }
if((data->blocks[8] >> 16 & 0xFF) > 0x31 || (data->blocks[8] >> 8 & 0xFF) > 0x12) { uint16_t mfg_year;
uint8_t mfg_month, mfg_day;
if(!mykey_get_production_date(data, &mfg_year, &mfg_month, &mfg_day)) {
FURI_LOG_D(TAG, "bad mfg date"); FURI_LOG_D(TAG, "bad mfg date");
return false; return false;
} }
@ -56,13 +88,8 @@ static bool mykey_parse(const NfcDevice* device, FuriString* parsed_data) {
furi_string_cat_printf(parsed_data, "Blank: %s\n", is_blank ? "yes" : "no"); furi_string_cat_printf(parsed_data, "Blank: %s\n", is_blank ? "yes" : "no");
furi_string_cat_printf(parsed_data, "LockID: %s\n", mykey_has_lockid(data) ? "maybe" : "no"); furi_string_cat_printf(parsed_data, "LockID: %s\n", mykey_has_lockid(data) ? "maybe" : "no");
uint32_t block8 = data->blocks[8];
furi_string_cat_printf( furi_string_cat_printf(
parsed_data, parsed_data, "Prod. date: %02X/%02X/%04X", mfg_day, mfg_month, mfg_year);
"Prod. date: %02lX/%02lX/%04lX",
block8 >> 16 & 0xFF,
block8 >> 8 & 0xFF,
0x2000 + (block8 & 0xFF));
if(!is_blank) { if(!is_blank) {
furi_string_cat_printf( furi_string_cat_printf(
@ -127,4 +154,4 @@ static const FlipperAppPluginDescriptor mykey_plugin_descriptor = {
/* Plugin entry point - must return a pointer to const descriptor */ /* Plugin entry point - must return a pointer to const descriptor */
const FlipperAppPluginDescriptor* mykey_plugin_ep() { const FlipperAppPluginDescriptor* mykey_plugin_ep() {
return &mykey_plugin_descriptor; return &mykey_plugin_descriptor;
} }