mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
156 lines
4.3 KiB
C
156 lines
4.3 KiB
C
/** @file
|
|
Copyright (C) 2019, vit9696. 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_STORAGE_LIB_H
|
|
#define OC_STORAGE_LIB_H
|
|
|
|
#include <Library/OcCryptoLib.h>
|
|
#include <Library/OcGuardLib.h>
|
|
#include <Library/OcFileLib.h>
|
|
#include <Library/OcSerializeLib.h>
|
|
|
|
/**
|
|
Storage vault file containing a dictionary with SHA-256 hashes for all files.
|
|
**/
|
|
#define OC_STORAGE_VAULT_PATH L"vault.plist"
|
|
|
|
/**
|
|
RSA-2048 signature of SHA-256 hash of vault.plist.
|
|
**/
|
|
#define OC_STORAGE_VAULT_SIGNATURE_PATH L"vault.sig"
|
|
|
|
/**
|
|
Storage vault version declaring vault compatibility.
|
|
**/
|
|
#define OC_STORAGE_VAULT_VERSION 1
|
|
|
|
/**
|
|
Safe maximum file path in the storage.
|
|
**/
|
|
#define OC_STORAGE_SAFE_PATH_MAX 128
|
|
|
|
/**
|
|
Structure declaration for valult file.
|
|
**/
|
|
#define OC_STORAGE_VAULT_HASH_FIELDS(_, __) \
|
|
_(UINT8 , Hash , [SHA256_DIGEST_SIZE] , {0} , () )
|
|
OC_DECLARE (OC_STORAGE_VAULT_HASH)
|
|
|
|
#define OC_STORAGE_VAULT_FILES_FIELDS(_, __) \
|
|
OC_MAP (OC_STRING, OC_STORAGE_VAULT_HASH, _, __)
|
|
OC_DECLARE (OC_STORAGE_VAULT_FILES)
|
|
|
|
#define OC_STORAGE_VAULT_FIELDS(_, __) \
|
|
_(UINT32 , Version , , 0 , () ) \
|
|
_(OC_STORAGE_VAULT_FILES , Files , , OC_CONSTR (OC_STORAGE_VAULT_FILES, _, __) , OC_DESTR (OC_STORAGE_VAULT_FILES))
|
|
OC_DECLARE (OC_STORAGE_VAULT)
|
|
|
|
/**
|
|
Storage abstraction context
|
|
**/
|
|
typedef struct {
|
|
///
|
|
/// Storage file system if any.
|
|
///
|
|
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FileSystem;
|
|
///
|
|
/// Storage root owned by context.
|
|
///
|
|
EFI_FILE_PROTOCOL *StorageRoot;
|
|
///
|
|
/// Device handle with storage (dummy) device path for loading.
|
|
///
|
|
EFI_HANDLE StorageHandle;
|
|
///
|
|
/// Dummy file path for file storage.
|
|
///
|
|
EFI_DEVICE_PATH_PROTOCOL *DummyDevicePath;
|
|
///
|
|
/// Dummy file path relative to storage.
|
|
///
|
|
EFI_DEVICE_PATH_PROTOCOL *DummyFilePath;
|
|
///
|
|
/// Vault context.
|
|
///
|
|
OC_STORAGE_VAULT Vault;
|
|
///
|
|
/// Vault status.
|
|
///
|
|
BOOLEAN HasVault;
|
|
} OC_STORAGE_CONTEXT;
|
|
|
|
/**
|
|
Create storage context from UEFI file system at specified path.
|
|
|
|
@param[out] Context Resulting storage context.
|
|
@param[in] FileSystem Storage file system.
|
|
@param[in] Path Storage file system path (e.g. L"\\").
|
|
@param[in] StorageKey Storage signature verification key, optional.
|
|
|
|
@retval EFI_SUCCESS on success.
|
|
**/
|
|
EFI_STATUS
|
|
OcStorageInitFromFs (
|
|
OUT OC_STORAGE_CONTEXT *Context,
|
|
IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *FileSystem,
|
|
IN CONST CHAR16 *Path,
|
|
IN OC_RSA_PUBLIC_KEY *StorageKey OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Free storage context resources.
|
|
|
|
@param[in,out] Context Storage context.
|
|
**/
|
|
VOID
|
|
OcStorageFree (
|
|
IN OUT OC_STORAGE_CONTEXT *Context
|
|
);
|
|
|
|
/**
|
|
Check whether file exists.
|
|
|
|
@param[in] Context Storage context.
|
|
@param[in] FilePath The full path to the file on the device.
|
|
|
|
@retval TRUE if file is present in vault or ondisk.
|
|
**/
|
|
BOOLEAN
|
|
OcStorageExistsFileUnicode (
|
|
IN OC_STORAGE_CONTEXT *Context,
|
|
IN CONST CHAR16 *FilePath
|
|
);
|
|
|
|
/**
|
|
Read file from storage with implicit double (2 byte) null termination.
|
|
Null termination does not affect the returned file size.
|
|
Depending on the implementation 0 byte files may return null.
|
|
If storage context was created with valid storage key, then signature
|
|
checking will be performed
|
|
|
|
@param[in] Context Storage context.
|
|
@param[in] FilePath The full path to the file on the device.
|
|
@param[out] FileSize The size of the file read (optional).
|
|
|
|
@retval A pointer to a buffer containing file read or NULL.
|
|
**/
|
|
VOID *
|
|
OcStorageReadFileUnicode (
|
|
IN OC_STORAGE_CONTEXT *Context,
|
|
IN CONST CHAR16 *FilePath,
|
|
OUT UINT32 *FileSize OPTIONAL
|
|
);
|
|
|
|
#endif // OC_STORAGE_LIB_H
|