[edk2] [PATCH v3 1/2] MdePkg: Add UDF volume structure definitions

[Paulo Alcantara]

This patch adds a few more UDF volume structures in order to detect an
UDF file system which is supported by current EDK2 UDF file system
implementation in Partition driver.

Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Ruiyu Ni <ruiyu...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pca...@zytor.com>
---
 MdePkg/Include/IndustryStandard/Udf.h | 63 ++++++++++++++++++--
 1 file changed, 59 insertions(+), 4 deletions(-)

diff --git a/MdePkg/Include/IndustryStandard/Udf.h 
b/MdePkg/Include/IndustryStandard/Udf.h
index 0febb4bcda..002e87e150 100644
--- a/MdePkg/Include/IndustryStandard/Udf.h
+++ b/MdePkg/Include/IndustryStandard/Udf.h
@@ -24,11 +24,28 @@
 #define UDF_LOGICAL_SECTOR_SIZE   ((UINT64)(1ULL << UDF_LOGICAL_SECTOR_SHIFT))
 #define UDF_VRS_START_OFFSET      ((UINT64)(16ULL << UDF_LOGICAL_SECTOR_SHIFT))
 
-#define _GET_TAG_ID(_Pointer) \
-  (((UDF_DESCRIPTOR_TAG *)(_Pointer))->TagIdentifier)
+typedef enum {
+  UdfPrimaryVolumeDescriptor = 1,
+  UdfAnchorVolumeDescriptorPointer = 2,
+  UdfVolumeDescriptorPointer = 3,
+  UdfImplemenationUseVolumeDescriptor = 4,
+  UdfPartitionDescriptor = 5,
+  UdfLogicalVolumeDescriptor = 6,
+  UdfUnallocatedSpaceDescriptor = 7,
+  UdfTerminatingDescriptor = 8,
+  UdfLogicalVolumeIntegrityDescriptor = 9,
+  UdfFileSetDescriptor = 256,
+  UdfFileIdentifierDescriptor = 257,
+  UdfAllocationExtentDescriptor = 258,
+  UdfFileEntry = 261,
+  UdfExtendedFileEntry = 266,
+} UDF_VOLUME_DESCRIPTOR_ID;
 
-#define IS_AVDP(_Pointer) \
-  ((BOOLEAN)(_GET_TAG_ID (_Pointer) == 2))
+#define UDF_TAG_ID(_Tag) \
+  (UDF_VOLUME_DESCRIPTOR_ID)((_Tag)->TagIdentifier)
+
+#define UDF_LVD_REVISION(_Lv) \
+  *(UINT16 *)(UINTN)(_Lv)->DomainIdentifier.IdentifierSuffix
 
 #pragma pack(1)
 
@@ -49,12 +66,50 @@ typedef struct {
 } UDF_EXTENT_AD;
 
 typedef struct {
+  UINT8           CharacterSetType;
+  UINT8           CharacterSetInfo[63];
+} UDF_CHAR_SPEC;
+
+typedef struct {
+  UINT8           Flags;
+  UINT8           Identifier[23];
+  UINT8           IdentifierSuffix[8];
+} UDF_ENTITY_ID;
+
+typedef struct {
+  UINT32        LogicalBlockNumber;
+  UINT16        PartitionReferenceNumber;
+} UDF_LB_ADDR;
+
+typedef struct {
+  UINT32                           ExtentLength;
+  UDF_LB_ADDR                      ExtentLocation;
+  UINT8                            ImplementationUse[6];
+} UDF_LONG_ALLOCATION_DESCRIPTOR;
+
+typedef struct {
   UDF_DESCRIPTOR_TAG  DescriptorTag;
   UDF_EXTENT_AD       MainVolumeDescriptorSequenceExtent;
   UDF_EXTENT_AD       ReserveVolumeDescriptorSequenceExtent;
   UINT8               Reserved[480];
 } UDF_ANCHOR_VOLUME_DESCRIPTOR_POINTER;
 
+typedef struct {
+  UDF_DESCRIPTOR_TAG              DescriptorTag;
+  UINT32                          VolumeDescriptorSequenceNumber;
+  UDF_CHAR_SPEC                   DescriptorCharacterSet;
+  UINT8                           LogicalVolumeIdentifier[128];
+  UINT32                          LogicalBlockSize;
+  UDF_ENTITY_ID                   DomainIdentifier;
+  UDF_LONG_ALLOCATION_DESCRIPTOR  LogicalVolumeContentsUse;
+  UINT32                          MapTableLength;
+  UINT32                          NumberOfPartitionMaps;
+  UDF_ENTITY_ID                   ImplementationIdentifier;
+  UINT8                           ImplementationUse[128];
+  UDF_EXTENT_AD                   IntegritySequenceExtent;
+  UINT8                           PartitionMaps[6];
+} UDF_LOGICAL_VOLUME_DESCRIPTOR;
+
 #pragma pack()
 
 #endif
-- 
2.11.0

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