mirror of https://github.com/acidanthera/audk.git
85acb5e8ff
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1254 This commit will add an additional check within function GetPdFromLongAd() when getting a Partition Descriptor from given a Long Allocation Descriptor. According to UDF 2.60 Spec, Section 2.2.13: > The partition reference numbers used are determined by the order of the > Partition Maps in the LVD. (Also the picture comes before the above contents) And a more detailed explanation of the partition reference numbers is at https://sites.google.com/site/udfintro/ (seems not a formal documentation though), Section 5.3.6. Based on the above findings, the 'PartitionReferenceNumber' field in a Long Allocation Descriptor is used as an index to access the Partition Maps data within a Logical Volume Descriptor. Hence, the new check focuses on the validity of this 'PartitionReferenceNumber' field in a Long Allocation Descriptor. Since the current implementation of UdfDxe driver supports only one partition on a Logical Volume, so the value of 'PartitionReferenceNumber' should be 0. Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Paulo Alcantara <palcantara@suse.de> Acked-by: Star Zeng <star.zeng@intel.com> |
||
|---|---|---|
| .. | ||
| Application | ||
| Bus | ||
| Core | ||
| Include | ||
| Library | ||
| Logo | ||
| Universal | ||
| MdeModulePkg.dec | ||
| MdeModulePkg.dsc | ||
| MdeModulePkg.uni | ||
| MdeModulePkgExtra.uni | ||