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Extended mount to check all metadata-pairs #9406

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Merged
merged 1 commit into from
Jan 18, 2019
Merged

Extended mount to check all metadata-pairs #9406

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14 changes: 13 additions & 1 deletion features/storage/filesystem/littlefs/littlefs/lfs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2206,6 +2206,10 @@ int lfs_mount(lfs_t *lfs, const struct lfs_config *cfg) {

lfs->root[0] = superblock.d.root[0];
lfs->root[1] = superblock.d.root[1];
if (lfs_paircmp(lfs->root, dir.d.tail) != 0) {
err = LFS_ERR_CORRUPT;
goto cleanup;
}
}

if (err || memcmp(superblock.d.magic, "littlefs", 8) != 0) {
Expand All @@ -2223,10 +2227,18 @@ int lfs_mount(lfs_t *lfs, const struct lfs_config *cfg) {
goto cleanup;
}

// verify that no metadata pairs are corrupt
while (!lfs_pairisnull(dir.d.tail)) {
err = lfs_dir_fetch(lfs, &dir, dir.d.tail);
if (err) {
goto cleanup;
}
}

// succuessfully mounted
return 0;

cleanup:

lfs_deinit(lfs);
return err;
}
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