mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-23 11:35:19 +01:00
306 lines
8.8 KiB
C
Executable File
306 lines
8.8 KiB
C
Executable File
/** @file
|
|
Copyright (C) 2016, The HermitCrabs Lab. All rights reserved.
|
|
|
|
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.
|
|
**/
|
|
|
|
#ifndef OC_DEVICE_PATH_LIB_H
|
|
#define OC_DEVICE_PATH_LIB_H
|
|
|
|
/**
|
|
Append file name to device path.
|
|
|
|
@param[in] DevicePath The device path which to append the file path.
|
|
@param[in] FileName The file name to append to the device path.
|
|
|
|
@retval EFI_SUCCESS The defaults were initialized successfully.
|
|
@retval EFI_INVALID_PARAMETER The parameters passed were invalid.
|
|
@retval EFI_OUT_OF_RESOURCES The system ran out of memory.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
AppendFileNameDevicePath (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
|
|
IN CHAR16 *FileName
|
|
);
|
|
|
|
/**
|
|
Locate the node inside the device path specified by Type an SubType values.
|
|
|
|
@param[in] DevicePath The device path used in the search.
|
|
@param[in] Type The Type field of the device path node specified by Node.
|
|
@param[in] SubType The SubType field of the device path node specified by Node.
|
|
|
|
@return Returned is the first Device Path Node with the given type.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
FindDevicePathNodeWithType (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
|
|
IN UINT8 Type,
|
|
IN UINT8 SubType OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Check whether device paths are equal.
|
|
|
|
@param[in] DevicePath1 The first device path protocol to compare.
|
|
@param[in] DevicePath2 The second device path protocol to compare.
|
|
|
|
@retval TRUE The device paths matched
|
|
@retval FALSE The device paths were different
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
IsDevicePathEqual (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath1,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath2
|
|
);
|
|
|
|
/**
|
|
Check whether File Device Paths are equal.
|
|
|
|
@param[in] FilePath1 The first device path protocol to compare.
|
|
@param[in] FilePath2 The second device path protocol to compare.
|
|
|
|
@retval TRUE The device paths matched
|
|
@retval FALSE The device paths were different
|
|
**/
|
|
BOOLEAN
|
|
FileDevicePathsEqual (
|
|
IN FILEPATH_DEVICE_PATH *FilePath1,
|
|
IN FILEPATH_DEVICE_PATH *FilePath2
|
|
);
|
|
|
|
/**
|
|
Check whether one device path exists in the other.
|
|
|
|
@param[in] ParentPath The parent device path protocol to check against.
|
|
@param[in] ChildPath The device path protocol of the child device to compare.
|
|
|
|
@retval TRUE The child device path contains the parent device path.
|
|
@retval FALSE The device paths were different
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
IsDevicePathChild (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *ParentPath,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *ChildPath
|
|
);
|
|
|
|
/**
|
|
Get absolute device path.
|
|
|
|
@param[in] Handle Device handle.
|
|
@param[in] RelativePath Relative device path to handle, optional.
|
|
|
|
@retval New device path or NULL.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
AbsoluteDevicePath (
|
|
IN EFI_HANDLE Handle,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *RelativePath OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Get trailed (slash-appended) device path for booter paths.
|
|
This way \\smth.efi gets NULL and \\smth gives \\smth\\.
|
|
|
|
@param[in] DevicePath Device path.
|
|
|
|
@retval New device path or NULL.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
TrailedBooterDevicePath (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
|
|
);
|
|
|
|
/**
|
|
Returns the size of PathName.
|
|
|
|
@param[in] FilePath The file Device Path node to inspect.
|
|
|
|
@retval Name size in bytes.
|
|
**/
|
|
UINTN
|
|
OcFileDevicePathNameSize (
|
|
IN CONST FILEPATH_DEVICE_PATH *FilePath
|
|
);
|
|
|
|
/**
|
|
Returns the length of PathName.
|
|
|
|
@param[in] FilePath The file Device Path node to inspect.
|
|
|
|
@retval Name length in characters (without trailing zero).
|
|
**/
|
|
UINTN
|
|
OcFileDevicePathNameLen (
|
|
IN CONST FILEPATH_DEVICE_PATH *FilePath
|
|
);
|
|
|
|
/**
|
|
Retrieve the size of the full file path described by DevicePath.
|
|
|
|
@param[in] DevicePath The Device Path to inspect.
|
|
|
|
@returns The size of the full file path.
|
|
@retval 0 DevicePath does not start with a File Path node or contains
|
|
non-terminating nodes that are not File Path nodes.
|
|
|
|
**/
|
|
UINTN
|
|
OcFileDevicePathFullNameSize (
|
|
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
|
|
);
|
|
|
|
/**
|
|
Retrieve the full file path described by FilePath.
|
|
The caller is expected to call OcFileDevicePathFullNameSize() or ensure its
|
|
guarantees are met.
|
|
|
|
@param[out] PathName On output, the full file path of FilePath.
|
|
@param[in] FilePath The File Device Path to inspect.
|
|
@param[in] PathNameSize The size, in bytes, of PathnName. Must equal the
|
|
actual fill file path size.
|
|
|
|
**/
|
|
VOID
|
|
OcFileDevicePathFullName (
|
|
OUT CHAR16 *PathName,
|
|
IN CONST FILEPATH_DEVICE_PATH *FilePath,
|
|
IN UINTN PathNameSize
|
|
);
|
|
|
|
/**
|
|
Duplicate device path with DevicePathInstance appended if it is not present.
|
|
|
|
@param[in] DevicePath Device Path to append new instance to, optional.
|
|
@param[in] DevicePathInstance Device Path instance to append.
|
|
|
|
@retval New Device Path or NULL.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
OcAppendDevicePathInstanceDedupe (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL,
|
|
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance
|
|
);
|
|
|
|
/**
|
|
Calculate number of device path instances.
|
|
|
|
@param[in] DevicePath Device Path to calculate instances in.
|
|
|
|
@retval Number of instances in device path.
|
|
**/
|
|
UINTN
|
|
OcGetNumDevicePathInstances (
|
|
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
|
|
);
|
|
|
|
///
|
|
/// Used to store information on how to restore a node patched by
|
|
/// OcFixAppleBootDevicePathNode().
|
|
///
|
|
typedef union {
|
|
struct {
|
|
UINT16 PortMultiplierPortNumber;
|
|
} Sata;
|
|
|
|
struct {
|
|
UINT8 SubType;
|
|
} SasExNvme;
|
|
|
|
struct {
|
|
UINT32 HID;
|
|
UINT32 UID;
|
|
} Acpi;
|
|
|
|
struct {
|
|
UINT32 HID;
|
|
UINT32 CID;
|
|
} ExtendedAcpi;
|
|
} APPLE_BOOT_DP_PATCH_CONTEXT;
|
|
|
|
/**
|
|
Fix Apple Boot Device Path node to be compatible with conventional UEFI
|
|
implementations.
|
|
|
|
@param[in,out] DevicePathNode A pointer to the device path node to fix.
|
|
@param[out] RestoreContext A pointer to a context that can be used to
|
|
restore DevicePathNode's original content in
|
|
the case of failure.
|
|
|
|
@retval -1 DevicePathNode could not be fixed.
|
|
@retval 0 DevicePathNode was not modified and may be valid.
|
|
@retval 1 DevicePathNode was fixed and may be valid.
|
|
|
|
**/
|
|
INTN
|
|
OcFixAppleBootDevicePathNode (
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL *DevicePathNode,
|
|
OUT APPLE_BOOT_DP_PATCH_CONTEXT *RestoreContext OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Restore the original content of DevicePathNode before calling
|
|
OcFixAppleBootDevicePathNode() with RestoreContext.
|
|
|
|
@param[in,out] DevicePathNode A pointer to the device path node to restore.
|
|
@param[out] RestoreContext A pointer to a context that was used to call
|
|
OcFixAppleBootDevicePathNode().
|
|
|
|
**/
|
|
VOID
|
|
OcFixAppleBootDevicePathNodeRestore (
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL *DevicePathNode,
|
|
IN CONST APPLE_BOOT_DP_PATCH_CONTEXT *RestoreContext
|
|
);
|
|
|
|
/**
|
|
Fix Apple Boot Device Path to be compatible with conventional UEFI
|
|
implementations. In case -1 is returned and the first node could not be
|
|
located or fixed, DevicePath's original state will be preserved. In all other
|
|
cases, it may be destroyed.
|
|
|
|
@param[in,out] DevicePath On input, a pointer to the device path to fix.
|
|
On output, the device path pointer is modified to
|
|
point to the remaining part of the device path.
|
|
|
|
@retval -1 *DevicePath could not be fixed.
|
|
@retval 0 *DevicePath was not modified and may be valid.
|
|
@retval 1 *DevicePath was fixed and may be valid.
|
|
|
|
**/
|
|
INTN
|
|
OcFixAppleBootDevicePath (
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
|
|
);
|
|
|
|
/**
|
|
Get the next possible full path pointing to the load option.
|
|
The routine doesn't guarantee the returned full path points to an existing
|
|
file, and it also doesn't guarantee the existing file is a valid load option.
|
|
|
|
@param FilePath The device path pointing to a load option.
|
|
It could be a short-form device path.
|
|
@param FullPath The full path returned by the routine in last call.
|
|
Set to NULL in first call.
|
|
|
|
@return The next possible full path pointing to the load option.
|
|
Caller is responsible to free the memory.
|
|
**/
|
|
EFI_DEVICE_PATH_PROTOCOL *
|
|
OcGetNextLoadOptionDevicePath (
|
|
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *FullPath
|
|
);
|
|
|
|
#endif // OC_DEVICE_PATH_LIB_H
|