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Storage: lfs config fingerprinting. RTC: fix data collision in lock register, refactor and cleanup. (#928)

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あく
2021-12-24 17:33:58 +03:00
committed by GitHub
parent 79e0aed1e6
commit 7cea359be8
16 changed files with 119 additions and 95 deletions
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28
applications/storage/storages/storage-int.c
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@@ -161,12 +161,36 @@ static LFSData* storage_int_lfs_data_alloc() {
return lfs_data;
};
static bool storage_int_is_fingerprint_valid(LFSData* lfs_data) {
bool value = true;
uint32_t os_fingerprint = 0;
os_fingerprint |= ((lfs_data->start_page & 0xFF) << 0);
os_fingerprint |= ((lfs_data->config.block_count & 0xFF) << 8);
os_fingerprint |= ((LFS_DISK_VERSION_MAJOR & 0xFFFF) << 16);
uint32_t rtc_fingerprint = furi_hal_rtc_get_register(FuriHalRtcRegisterLfsFingerprint);
if(rtc_fingerprint == 0) {
FURI_LOG_I(TAG, "Storing LFS fingerprint in RTC");
furi_hal_rtc_set_register(FuriHalRtcRegisterLfsFingerprint, os_fingerprint);
} else if(rtc_fingerprint != os_fingerprint) {
FURI_LOG_E(TAG, "LFS fingerprint mismatch");
furi_hal_rtc_set_register(FuriHalRtcRegisterLfsFingerprint, os_fingerprint);
value = false;
}
return value;
}
static void storage_int_lfs_mount(LFSData* lfs_data, StorageData* storage) {
int err;
lfs_t* lfs = &lfs_data->lfs;
if(furi_hal_rtc_is_flag_set(FuriHalRtcFlagFactoryReset)) {
// Factory reset
bool need_format = furi_hal_rtc_is_flag_set(FuriHalRtcFlagFactoryReset) ||
!storage_int_is_fingerprint_valid(lfs_data);
if(need_format) {
// Format storage
err = lfs_format(lfs, &lfs_data->config);
if(err == 0) {
FURI_LOG_I(TAG, "Factory reset: Format successful, trying to mount");