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/** @file
Declaration of the boot file download function.
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that 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 __EFI_HTTP_BOOT_HTTP_H__
#define __EFI_HTTP_BOOT_HTTP_H__
#define HTTP_BOOT_REQUEST_TIMEOUT 5000 // 5 seconds in uints of millisecond.
#define HTTP_BOOT_BLOCK_SIZE 1024
#define HTTP_FIELD_NAME_USER_AGENT "User-Agent"
#define HTTP_FIELD_NAME_HOST "Host"
#define HTTP_FIELD_NAME_ACCEPT "Accept"
#define HTTP_USER_AGENT_EFI_HTTP_BOOT "UefiHttpBoot/1.0"
//
// Record the data length and start address of a data block.
//
typedef struct {
LIST_ENTRY Link; // Link to the EntityDataList in HTTP_BOOT_CACHE_CONTENT
UINT8 *Block; // If NULL, the data is in previous data block.
UINT8 *DataStart; // Point to somewhere in the Block
UINTN DataLength;
} HTTP_BOOT_ENTITY_DATA;
//
// Structure for a cache item
//
typedef struct {
LIST_ENTRY Link; // Link to the CacheList in driver's private data.
EFI_HTTP_REQUEST_DATA *RequestData;
HTTP_IO_RESOPNSE_DATA *ResponseData; // Not include any message-body data.
UINTN EntityLength;
LIST_ENTRY EntityDataList; // Entity data (message-body)
} HTTP_BOOT_CACHE_CONTENT;
//
// Callback data for HTTP_BODY_PARSER_CALLBACK()
//
typedef struct {
EFI_STATUS Status;
//
// Cache info.
//
HTTP_BOOT_CACHE_CONTENT *Cache;
BOOLEAN NewBlock;
UINT8 *Block;
//
// Caller provided buffer to load the file in.
//
UINTN CopyedSize;
UINTN BufferSize;
UINT8 *Buffer;
} HTTP_BOOT_CALLBACK_DATA;
/**
Discover all the boot information for boot file.
@param[in, out] Private The pointer to the driver's private data.
@retval EFI_SUCCESS Successfully obtained all the boot information .
@retval Others Failed to retrieve the boot information.
**/
EFI_STATUS
HttpBootDiscoverBootInfo (
IN OUT HTTP_BOOT_PRIVATE_DATA *Private
);
/**
Create a HttpIo instance for the file download.
@param[in] Private The pointer to the driver's private data.
@retval EFI_SUCCESS Successfully created.
@retval Others Failed to create HttpIo.
**/
EFI_STATUS
HttpBootCreateHttpIo (
IN HTTP_BOOT_PRIVATE_DATA *Private
);
/**
This function download the boot file by using UEFI HTTP protocol.
@param[in] Private The pointer to the driver's private data.
@param[in] HeaderOnly Only request the response header, it could save a lot of time if
the caller only want to know the size of the requested file.
@param[in, out] BufferSize On input the size of Buffer in bytes. On output with a return
code of EFI_SUCCESS, the amount of data transferred to
Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
the size of Buffer required to retrieve the requested file.
@param[out] Buffer The memory buffer to transfer the file to. IF Buffer is NULL,
then the size of the requested file is returned in
BufferSize.
@retval EFI_SUCCESS The file was loaded.
@retval EFI_INVALID_PARAMETER BufferSize is NULL or Buffer Size is not NULL but Buffer is NULL.
@retval EFI_OUT_OF_RESOURCES Could not allocate needed resources
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry.
BufferSize has been updated with the size needed to complete
the request.
@retval Others Unexpected error happened.
**/
EFI_STATUS
HttpBootGetBootFile (
IN HTTP_BOOT_PRIVATE_DATA *Private,
IN BOOLEAN HeaderOnly,
IN OUT UINTN *BufferSize,
OUT UINT8 *Buffer
);
/**
Clean up all cached data.
@param[in] Private The pointer to the driver's private data.
**/
VOID
HttpBootFreeCacheList (
IN HTTP_BOOT_PRIVATE_DATA *Private
);
#endif
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