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 This program and the accompanying materials are licensed and made available under
   6 the terms and conditions of the BSD License that accompanies this distribution.
   7 The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php.
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __EFI_HTTP_BOOT_HTTP_H__
  16 #define __EFI_HTTP_BOOT_HTTP_H__
  17
  18 #define HTTP_BOOT_REQUEST_TIMEOUT            5000      // 5 seconds in uints of millisecond.
  19 #define HTTP_BOOT_BLOCK_SIZE                 1024
  20
  21 #define HTTP_FIELD_NAME_USER_AGENT           "User-Agent"
  22 #define HTTP_FIELD_NAME_HOST                 "Host"
  23 #define HTTP_FIELD_NAME_ACCEPT               "Accept"
  24
  25
  26 #define HTTP_USER_AGENT_EFI_HTTP_BOOT        "UefiHttpBoot/1.0"
  27
  28 //
  29 // Record the data length and start address of a data block.
  30 //
  31 typedef struct {
  32   LIST_ENTRY                 Link;        // Link to the EntityDataList in HTTP_BOOT_CACHE_CONTENT
  33   UINT8                      *Block;      // If NULL, the data is in previous data block.
  34   UINT8                      *DataStart;  // Point to somewhere in the Block
  35   UINTN                      DataLength;
  36 } HTTP_BOOT_ENTITY_DATA;
  37
  38 //
  39 // Structure for a cache item
  40 //
  41 typedef struct {
  42   LIST_ENTRY                 Link;            // Link to the CacheList in driver's private data.
  43   EFI_HTTP_REQUEST_DATA      *RequestData;
  44   HTTP_IO_RESOPNSE_DATA      *ResponseData;   // Not include any message-body data.
  45   UINTN                      EntityLength;
  46   LIST_ENTRY                 EntityDataList;  // Entity data (message-body)
  47 } HTTP_BOOT_CACHE_CONTENT;
  48
  49 //
  50 // Callback data for HTTP_BODY_PARSER_CALLBACK()
  51 //
  52 typedef struct {
  53   EFI_STATUS                 Status;
  54   //
  55   // Cache info.
  56   //
  57   HTTP_BOOT_CACHE_CONTENT    *Cache;
  58   BOOLEAN                    NewBlock;
  59   UINT8                      *Block;
  60
  61   //
  62   // Caller provided buffer to load the file in.
  63   //
  64   UINTN                      CopyedSize;
  65   UINTN                      BufferSize;
  66   UINT8                      *Buffer;
  67 } HTTP_BOOT_CALLBACK_DATA;
  68
  69 /**
  70   Discover all the boot information for boot file.
  71
  72   @param[in, out]    Private        The pointer to the driver's private data.
  73
  74   @retval EFI_SUCCESS          Successfully obtained all the boot information .
  75   @retval Others               Failed to retrieve the boot information.
  76
  77 **/
  78 EFI_STATUS
  79 HttpBootDiscoverBootInfo (
  80   IN OUT HTTP_BOOT_PRIVATE_DATA   *Private
  81   );
  82
  83 /**
  84   Create a HttpIo instance for the file download.
  85
  86   @param[in]    Private        The pointer to the driver's private data.
  87
  88   @retval EFI_SUCCESS          Successfully created.
  89   @retval Others               Failed to create HttpIo.
  90
  91 **/
  92 EFI_STATUS
  93 HttpBootCreateHttpIo (
  94   IN     HTTP_BOOT_PRIVATE_DATA       *Private
  95   );
  96
  97 /**
  98   This function download the boot file by using UEFI HTTP protocol.
  99
 100   @param[in]       Private         The pointer to the driver's private data.
 101   @param[in]       HeaderOnly      Only request the response header, it could save a lot of time if
 102                                    the caller only want to know the size of the requested file.
 103   @param[in, out]  BufferSize      On input the size of Buffer in bytes. On output with a return
 104                                    code of EFI_SUCCESS, the amount of data transferred to
 105                                    Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
 106                                    the size of Buffer required to retrieve the requested file.
 107   @param[out]      Buffer          The memory buffer to transfer the file to. IF Buffer is NULL,
 108                                    then the size of the requested file is returned in
 109                                    BufferSize.
 110
 111   @retval EFI_SUCCESS              The file was loaded.
 112   @retval EFI_INVALID_PARAMETER    BufferSize is NULL or Buffer Size is not NULL but Buffer is NULL.
 113   @retval EFI_OUT_OF_RESOURCES     Could not allocate needed resources
 114   @retval EFI_BUFFER_TOO_SMALL     The BufferSize is too small to read the current directory entry.
 115                                    BufferSize has been updated with the size needed to complete
 116                                    the request.
 117   @retval Others                   Unexpected error happened.
 118
 119 **/
 120 EFI_STATUS
 121 HttpBootGetBootFile (
 122   IN     HTTP_BOOT_PRIVATE_DATA   *Private,
 123   IN     BOOLEAN                  HeaderOnly,
 124   IN OUT UINTN                    *BufferSize,
 125      OUT UINT8                    *Buffer
 126   );
 127
 128 /**
 129   Clean up all cached data.
 130
 131   @param[in]          Private         The pointer to the driver's private data.
 132
 133 **/
 134 VOID
 135 HttpBootFreeCacheList (
 136   IN     HTTP_BOOT_PRIVATE_DATA   *Private
 137   );
 138
 139 #endif