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| author | Pali Rohár | 2018-05-25 17:52:31 +0200 |
|---|---|---|
| committer | Pali Rohár | 2018-05-25 17:52:31 +0200 |
| commit | 4c837d4ffe43c5378da683b8fc63e17eb3afcf46 (patch) | |
| tree | e4e2ddd9c184e187b99aa113fda3e6aaa56671f8 /libblkid | |
| parent | libblkid: (ntfs) enlarge cluster limit to 2MB (diff) | |
| download | kernel-qcow2-util-linux-4c837d4ffe43c5378da683b8fc63e17eb3afcf46.tar.gz kernel-qcow2-util-linux-4c837d4ffe43c5378da683b8fc63e17eb3afcf46.tar.xz kernel-qcow2-util-linux-4c837d4ffe43c5378da683b8fc63e17eb3afcf46.zip | |
libblkid: udf: Fix reporting UDF 2.60 revision
According to the UDF 2.60 specification, the Minimum UDF Read Revision
value shall be at most #0250 for all media with a UDF 2.60 file system.
So in this case use Minimum UDF Write Revision as ID_FS_VERSION to
distinguish between UDF 2.50 and UDF 2.60 discs.
This commit also adds a testing Blu-Ray Recordable image with UDF revision
2.60 created by Nero which really sets Minimum UDF Read Revision to 2.50.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Diffstat (limited to 'libblkid')
| -rw-r--r-- | libblkid/src/superblocks/udf.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libblkid/src/superblocks/udf.c b/libblkid/src/superblocks/udf.c index bd8e0a5c2..97e79dab0 100644 --- a/libblkid/src/superblocks/udf.c +++ b/libblkid/src/superblocks/udf.c @@ -446,6 +446,16 @@ real_blksz: lvidiu_udf_rev = le16_to_cpu(lvidiu->min_udf_read_rev); if (lvidiu_udf_rev) udf_rev = lvidiu_udf_rev; + /* UDF-2.60: 2. Basic Restrictions & Requirements: + * The Minimum UDF Read Revision value shall be at most #0250 + * for all media with a UDF 2.60 file system. + * So in this case use Minimum UDF Write Revision as ID_FS_VERSION + * to distinguish between UDF 2.50 and UDF 2.60 discs. */ + if (lvidiu_udf_rev == 0x250) { + lvidiu_udf_rev = le16_to_cpu(lvidiu->min_udf_write_rev); + if (lvidiu_udf_rev > 0x250) + udf_rev = lvidiu_udf_rev; + } } } |