diff options
| author | Kay Sievers <kay.sievers@vrfy.org> | 2007-10-23 02:38:23 +0200 |
|---|---|---|
| committer | Kay Sievers <kay.sievers@vrfy.org> | 2007-10-23 02:38:23 +0200 |
| commit | 02ee0e3312d1061d39c623ecef15bb653f2148cd (patch) | |
| tree | 58f451e7b47eb805dd777274b35db1906aaedd4d /extras/volume_id | |
| parent | 74534dbde84f7f2ba7dce60ebb9f651eab095bbe (diff) | |
volume_id: ntfs - rely on valid master file table
Diffstat (limited to 'extras/volume_id')
| -rw-r--r-- | extras/volume_id/lib/ntfs.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/extras/volume_id/lib/ntfs.c b/extras/volume_id/lib/ntfs.c index 9262454321..f63804d711 100644 --- a/extras/volume_id/lib/ntfs.c +++ b/extras/volume_id/lib/ntfs.c @@ -117,6 +117,9 @@ int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size) volume_id_set_uuid(id, ns->volume_serial, 0, UUID_64BIT_LE); sector_size = le16_to_cpu(ns->bytes_per_sector); + if (sector_size < 0x200) + return -1; + cluster_size = ns->sectors_per_cluster * sector_size; mft_cluster = le64_to_cpu(ns->mft_cluster_location); mft_off = mft_cluster * cluster_size; @@ -137,13 +140,12 @@ int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size) buf = volume_id_get_buffer(id, off + mft_off + (MFT_RECORD_VOLUME * mft_record_size), mft_record_size); if (buf == NULL) - goto found; + return -1; mftr = (struct master_file_table_record*) buf; - dbg("mftr->magic '%c%c%c%c'", mftr->magic[0], mftr->magic[1], mftr->magic[2], mftr->magic[3]); if (memcmp(mftr->magic, "FILE", 4) != 0) - goto found; + return -1; attr_off = le16_to_cpu(mftr->attrs_offset); dbg("file $Volume's attributes are at offset %i", attr_off); @@ -186,7 +188,6 @@ int volume_id_probe_ntfs(struct volume_id *id, uint64_t off, uint64_t size) } } -found: volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); id->type = "ntfs"; |