OcAppleDiskImageBlockIo.c File Reference

#include <Uefi.h>
#include <Protocol/AppleDiskImage.h>
#include <Protocol/AppleRamDisk.h>
#include <Protocol/BlockIo.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/OcApfsLib.h>
#include <Library/OcAppleDiskImageLib.h>
#include <Library/OcStringLib.h>
#include <Library/PrintLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include "OcAppleDiskImageLibInternal.h"

Go to the source code of this file.

Data Structures
struct	OC_APPLE_DISK_IMAGE_MOUNTED_DATA

Macros
#define	DMG_FILE_PATH_LEN   (L_STR_LEN (L"DMG_.dmg") + 16 + 1)
#define	OC_APPLE_DISK_IMAGE_MOUNTED_DATA_SIGNATURE    SIGNATURE_32('D','m','g','I')
#define	OC_APPLE_DISK_IMAGE_MOUNTED_DATA_FROM_THIS(This)

Typedefs
struct {
VENDOR_DEFINED_DEVICE_PATH   Vendor
UINT64   Length
}	DMG_SIZE_DEVICE_PATH
struct {
EFI_DEVICE_PATH_PROTOCOL   Header
CHAR16   PathName [DMG_FILE_PATH_LEN]
}	DMG_FILEPATH_DEVICE_PATH
struct {
APPLE_RAM_DISK_DP_HEADER   RamDisk
DMG_FILEPATH_DEVICE_PATH   FilePath
DMG_SIZE_DEVICE_PATH   Size
EFI_DEVICE_PATH_PROTOCOL   End
}	DMG_DEVICE_PATH

Functions
STATIC EFI_STATUS EFIAPI	DiskImageBlockIoReset (IN EFI_BLOCK_IO_PROTOCOL *This, IN BOOLEAN ExtendedVerification)
STATIC EFI_STATUS EFIAPI	DiskImageBlockIoReadBlocks (IN EFI_BLOCK_IO_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, OUT VOID *Buffer)
STATIC EFI_STATUS EFIAPI	DiskImageBlockIoWriteBlocks (IN EFI_BLOCK_IO_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA Lba, IN UINTN BufferSize, IN VOID *Buffer)
STATIC EFI_STATUS EFIAPI	DiskImageBlockIoFlushBlocks (IN EFI_BLOCK_IO_PROTOCOL *This)
STATIC VOID	InternalConstructDmgDevicePath (IN OUT OC_APPLE_DISK_IMAGE_MOUNTED_DATA *DiskImageData, IN UINTN FileSize)
EFI_HANDLE	OcAppleDiskImageInstallBlockIo (IN OC_APPLE_DISK_IMAGE_CONTEXT *Context, IN UINTN FileSize, OUT CONST EFI_DEVICE_PATH_PROTOCOL **DevicePath OPTIONAL, OUT UINTN *DevicePathSize OPTIONAL)
VOID	OcAppleDiskImageUninstallBlockIo (IN OC_APPLE_DISK_IMAGE_CONTEXT *Context, IN VOID *BlockIoHandle)

Variables
STATIC UINT32	mDmgCounter
	FIXME: This should exist on a protocol basis!
STATIC CONST EFI_BLOCK_IO_PROTOCOL	mDiskImageBlockIo

Detailed Description

Copyright (C) 2019, Goldfish64. All rights reserved.

This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

Definition in file OcAppleDiskImageBlockIo.c.

Macro Definition Documentation

DMG_FILE_PATH_LEN

#define DMG_FILE_PATH_LEN   (L_STR_LEN (L"DMG_.dmg") + 16 + 1)

Definition at line 31 of file OcAppleDiskImageBlockIo.c.

OC_APPLE_DISK_IMAGE_MOUNTED_DATA_FROM_THIS

#define OC_APPLE_DISK_IMAGE_MOUNTED_DATA_FROM_THIS

(

This

)

Value:

  BASE_CR (                                               \
    (This),                                               \
    OC_APPLE_DISK_IMAGE_MOUNTED_DATA,                     \
    BlockIo                                               \
    )

Definition at line 60 of file OcAppleDiskImageBlockIo.c.

OC_APPLE_DISK_IMAGE_MOUNTED_DATA_SIGNATURE

#define OC_APPLE_DISK_IMAGE_MOUNTED_DATA_SIGNATURE    SIGNATURE_32('D','m','g','I')

Definition at line 57 of file OcAppleDiskImageBlockIo.c.

Typedef Documentation

[struct]

typedef PACKED struct { ... } DMG_DEVICE_PATH

[struct]

typedef PACKED struct { ... } DMG_FILEPATH_DEVICE_PATH

[struct]

typedef PACKED struct { ... } DMG_SIZE_DEVICE_PATH

Function Documentation

DiskImageBlockIoFlushBlocks()

STATIC EFI_STATUS EFIAPI DiskImageBlockIoFlushBlocks

(

IN EFI_BLOCK_IO_PROTOCOL *

This

)

Definition at line 151 of file OcAppleDiskImageBlockIo.c.

DiskImageBlockIoReadBlocks()

STATIC EFI_STATUS EFIAPI DiskImageBlockIoReadBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		OUT VOID *	Buffer )

Definition at line 91 of file OcAppleDiskImageBlockIo.c.

DiskImageBlockIoReset()

STATIC EFI_STATUS EFIAPI DiskImageBlockIoReset	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN BOOLEAN	ExtendedVerification )

Definition at line 80 of file OcAppleDiskImageBlockIo.c.

DiskImageBlockIoWriteBlocks()

STATIC EFI_STATUS EFIAPI DiskImageBlockIoWriteBlocks	(	IN EFI_BLOCK_IO_PROTOCOL *	This,
		IN UINT32	MediaId,
		IN EFI_LBA	Lba,
		IN UINTN	BufferSize,
		IN VOID *	Buffer )

Definition at line 137 of file OcAppleDiskImageBlockIo.c.

InternalConstructDmgDevicePath()

STATIC VOID InternalConstructDmgDevicePath	(	IN OUT OC_APPLE_DISK_IMAGE_MOUNTED_DATA *	DiskImageData,
		IN UINTN	FileSize )

Definition at line 162 of file OcAppleDiskImageBlockIo.c.

OcAppleDiskImageInstallBlockIo()

EFI_HANDLE OcAppleDiskImageInstallBlockIo	(	IN OC_APPLE_DISK_IMAGE_CONTEXT *	Context,
		IN UINTN	FileSize,
		OUT CONST EFI_DEVICE_PATH_PROTOCOL **DevicePath	OPTIONAL,
		OUT UINTN *DevicePathSize	OPTIONAL )

Definition at line 242 of file OcAppleDiskImageBlockIo.c.

OcAppleDiskImageUninstallBlockIo()

VOID OcAppleDiskImageUninstallBlockIo	(	IN OC_APPLE_DISK_IMAGE_CONTEXT *	Context,
		IN VOID *	BlockIoHandle )

Definition at line 330 of file OcAppleDiskImageBlockIo.c.

Variable Documentation

End

EFI_DEVICE_PATH_PROTOCOL End

Definition at line 52 of file OcAppleDiskImageBlockIo.c.

FilePath

DMG_FILEPATH_DEVICE_PATH FilePath

Definition at line 50 of file OcAppleDiskImageBlockIo.c.

Header

EFI_DEVICE_PATH_PROTOCOL Header

Definition at line 41 of file OcAppleDiskImageBlockIo.c.

Length

UINT64 Length

Definition at line 37 of file OcAppleDiskImageBlockIo.c.

mDiskImageBlockIo

STATIC CONST EFI_BLOCK_IO_PROTOCOL mDiskImageBlockIo

Initial value:

= {
  EFI_BLOCK_IO_PROTOCOL_REVISION,
  NULL,
  DiskImageBlockIoReset,
  DiskImageBlockIoReadBlocks,
  DiskImageBlockIoWriteBlocks,
  DiskImageBlockIoFlushBlocks
}

Definition at line 232 of file OcAppleDiskImageBlockIo.c.

mDmgCounter

STATIC UINT32 mDmgCounter

FIXME: This should exist on a protocol basis!

Definition at line 158 of file OcAppleDiskImageBlockIo.c.

PathName

CHAR16 PathName[DMG_FILE_PATH_LEN]

A NULL-terminated Path string including directory and file names.

Definition at line 45 of file OcAppleDiskImageBlockIo.c.

RamDisk

APPLE_RAM_DISK_DP_HEADER RamDisk

Definition at line 49 of file OcAppleDiskImageBlockIo.c.

Size

DMG_SIZE_DEVICE_PATH Size

Definition at line 51 of file OcAppleDiskImageBlockIo.c.

Vendor

VENDOR_DEFINED_DEVICE_PATH Vendor

Definition at line 36 of file OcAppleDiskImageBlockIo.c.