OcApfsInternal.h

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#ifndef OC_APFS_INTERNAL_H
#define OC_APFS_INTERNAL_H
 
#include <Uefi.h>
#include <IndustryStandard/Apfs.h>
#include <Protocol/BlockIo.h>
#include <Protocol/ApfsEfiBootRecordInfo.h>
 
#define APFS_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('A', 'F', 'J', 'S')
 
#ifdef MDE_CPU_X64
#define APFS_MOD_MAX_UINT32(Value, Result)  do { *(Result) = ((Value) % MAX_UINT32); } while (0)
#else
#define APFS_MOD_MAX_UINT32(Value, Result)  do { DivU64x32Remainder ((Value), MAX_UINT32, (Result)); } while (0)
#endif
 
typedef struct APFS_PRIVATE_DATA_ APFS_PRIVATE_DATA;
 
typedef struct APFS_PRIVATE_DATA_ {
  //
  // Set to APFS_PRIVATE_DATA_SIGNATURE.
  //
  UINT32                              Signature;
  //
  // Linked to next instance of APFS_PRIVATE_DATA.
  //
  LIST_ENTRY                          Link;
  //
  // Location information describing controller and container.
  //
  APFS_EFIBOOTRECORD_LOCATION_INFO    LocationInfo;
  //
  // Block I/O protocol.
  //
  EFI_BLOCK_IO_PROTOCOL               *BlockIo;
  //
  // APFS block size, a multiple of Block I/O block size.
  //
  UINT32                              ApfsBlockSize;
  //
  // Number of Block I/O blocks in APFS block.
  //
  UINT32                              LbaMultiplier;
  //
  // JumpStart driver LBA.
  //
  UINT64                              EfiJumpStart;
  //
  // Fusion UUID.
  //
  GUID                                FusionUuid;
  //
  // Mask used to determine where block belongs.
  //
  UINT64                              FusionMask;
  //
  // Fusion sibling private data.
  //
  APFS_PRIVATE_DATA                   *FusionSibling;
  //
  // Can try loading bundled driver.
  //
  BOOLEAN                             CanLoadDriver;
  //
  // Partition is part of Fusion drive.
  //
  BOOLEAN                             IsFusion;
  //
  // Partition is master Fusion partition.
  //
  BOOLEAN                             IsFusionMaster;
} APFS_PRIVATE_DATA;
 
extern LIST_ENTRY  mApfsPrivateDataList;
 
EFI_STATUS
InternalApfsReadSuperBlock (
  IN  EFI_BLOCK_IO_PROTOCOL  *BlockIo,
  OUT APFS_NX_SUPERBLOCK     **SuperBlockPtr
  );
 
EFI_STATUS
InternalApfsReadDriver (
  IN  APFS_PRIVATE_DATA  *PrivateData,
  OUT UINT32             *DriverSize,
  OUT VOID               **DriverBuffer
  );
 
VOID
InternalApfsInitFusionData (
  IN  APFS_NX_SUPERBLOCK  *SuperBlock,
  OUT APFS_PRIVATE_DATA   *PrivateData
  );
 
EFI_BLOCK_IO_PROTOCOL *
InternalApfsTranslateBlock (
  IN  APFS_PRIVATE_DATA  *PrivateData,
  IN  UINT64             Block,
  OUT EFI_LBA            *Lba
  );
 
#endif // OC_APFS_INTERNAL_H