NetworkPkg/HttpBootDxe/HttpBootClient.h

   1 /** @file
   2   Declaration of the boot file download function.
   3
   4 Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
   5 (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
   6 This program and the accompanying materials are licensed and made available under
   7 the terms and conditions of the BSD License that accompanies this distribution.
   8 The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php.
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #ifndef __EFI_HTTP_BOOT_HTTP_H__
  17 #define __EFI_HTTP_BOOT_HTTP_H__
  18
  19 #define HTTP_BOOT_REQUEST_TIMEOUT            5000      // 5 seconds in uints of millisecond.
  20 #define HTTP_BOOT_BLOCK_SIZE                 1500
  21
  22
  23
  24 #define HTTP_USER_AGENT_EFI_HTTP_BOOT        "UefiHttpBoot/1.0"
  25
  26 //
  27 // Record the data length and start address of a data block.
  28 //
  29 typedef struct {
  30   LIST_ENTRY                 Link;        // Link to the EntityDataList in HTTP_BOOT_CACHE_CONTENT
  31   UINT8                      *Block;      // If NULL, the data is in previous data block.
  32   UINT8                      *DataStart;  // Point to somewhere in the Block
  33   UINTN                      DataLength;
  34 } HTTP_BOOT_ENTITY_DATA;
  35
  36 //
  37 // Structure for a cache item
  38 //
  39 typedef struct {
  40   LIST_ENTRY                 Link;            // Link to the CacheList in driver's private data.
  41   EFI_HTTP_REQUEST_DATA      *RequestData;
  42   HTTP_IO_RESPONSE_DATA      *ResponseData;   // Not include any message-body data.
  43   UINTN                      EntityLength;
  44   LIST_ENTRY                 EntityDataList;  // Entity data (message-body)
  45 } HTTP_BOOT_CACHE_CONTENT;
  46
  47 //
  48 // Callback data for HTTP_BODY_PARSER_CALLBACK()
  49 //
  50 typedef struct {
  51   EFI_STATUS                 Status;
  52   //
  53   // Cache info.
  54   //
  55   HTTP_BOOT_CACHE_CONTENT    *Cache;
  56   BOOLEAN                    NewBlock;
  57   UINT8                      *Block;
  58
  59   //
  60   // Caller provided buffer to load the file in.
  61   //
  62   UINTN                      CopyedSize;
  63   UINTN                      BufferSize;
  64   UINT8                      *Buffer;
  65 } HTTP_BOOT_CALLBACK_DATA;
  66
  67 /**
  68   Discover all the boot information for boot file.
  69
  70   @param[in, out]    Private        The pointer to the driver's private data.
  71
  72   @retval EFI_SUCCESS          Successfully obtained all the boot information .
  73   @retval Others               Failed to retrieve the boot information.
  74
  75 **/
  76 EFI_STATUS
  77 HttpBootDiscoverBootInfo (
  78   IN OUT HTTP_BOOT_PRIVATE_DATA   *Private
  79   );
  80
  81 /**
  82   Create a HttpIo instance for the file download.
  83
  84   @param[in]    Private        The pointer to the driver's private data.
  85
  86   @retval EFI_SUCCESS          Successfully created.
  87   @retval Others               Failed to create HttpIo.
  88
  89 **/
  90 EFI_STATUS
  91 HttpBootCreateHttpIo (
  92   IN     HTTP_BOOT_PRIVATE_DATA       *Private
  93   );
  94
  95 /**
  96   This function download the boot file by using UEFI HTTP protocol.
  97
  98   @param[in]       Private         The pointer to the driver's private data.
  99   @param[in]       HeaderOnly      Only request the response header, it could save a lot of time if
 100                                    the caller only want to know the size of the requested file.
 101   @param[in, out]  BufferSize      On input the size of Buffer in bytes. On output with a return
 102                                    code of EFI_SUCCESS, the amount of data transferred to
 103                                    Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
 104                                    the size of Buffer required to retrieve the requested file.
 105   @param[out]      Buffer          The memory buffer to transfer the file to. IF Buffer is NULL,
 106                                    then the size of the requested file is returned in
 107                                    BufferSize.
 108
 109   @retval EFI_SUCCESS              The file was loaded.
 110   @retval EFI_INVALID_PARAMETER    BufferSize is NULL or Buffer Size is not NULL but Buffer is NULL.
 111   @retval EFI_OUT_OF_RESOURCES     Could not allocate needed resources
 112   @retval EFI_BUFFER_TOO_SMALL     The BufferSize is too small to read the current directory entry.
 113                                    BufferSize has been updated with the size needed to complete
 114                                    the request.
 115   @retval Others                   Unexpected error happened.
 116
 117 **/
 118 EFI_STATUS
 119 HttpBootGetBootFile (
 120   IN     HTTP_BOOT_PRIVATE_DATA   *Private,
 121   IN     BOOLEAN                  HeaderOnly,
 122   IN OUT UINTN                    *BufferSize,
 123      OUT UINT8                    *Buffer
 124   );
 125
 126 /**
 127   Clean up all cached data.
 128
 129   @param[in]          Private         The pointer to the driver's private data.
 130
 131 **/
 132 VOID
 133 HttpBootFreeCacheList (
 134   IN     HTTP_BOOT_PRIVATE_DATA   *Private
 135   );
 136
 137 #endif