MdeModulePkg/Universal/SecurityStubDxe/Defer3rdPartyImageLoad.h

   1 /** @file
   2   Implement defer image load services for user identification in UEFI2.2.
   3
   4 Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  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 _DEFER_3RD_PARTY_IMAGE_LOAD_H_
  16 #define _DEFER_3RD_PARTY_IMAGE_LOAD_H_
  17
  18 #include <Uefi.h>
  19 #include <Guid/EventGroup.h>
  20 #include <Protocol/DeferredImageLoad.h>
  21 #include <Protocol/FirmwareVolume2.h>
  22
  23 #include <Library/UefiBootServicesTableLib.h>
  24 #include <Library/BaseMemoryLib.h>
  25 #include <Library/MemoryAllocationLib.h>
  26 #include <Library/DevicePathLib.h>
  27 #include <Library/DebugLib.h>
  28
  29 /**
  30   Returns information about a deferred image.
  31
  32   This function returns information about a single deferred image. The deferred images are
  33   numbered consecutively, starting with 0.  If there is no image which corresponds to
  34   ImageIndex, then EFI_NOT_FOUND is returned. All deferred images may be returned by
  35   iteratively calling this function until EFI_NOT_FOUND is returned.
  36   Image may be NULL and ImageSize set to 0 if the decision to defer execution was made
  37   because of the location of the executable image, rather than its actual contents.
  38
  39   @param[in]  This             Points to this instance of the EFI_DEFERRED_IMAGE_LOAD_PROTOCOL.
  40   @param[in]  ImageIndex       Zero-based index of the deferred index.
  41   @param[out] ImageDevicePath  On return, points to a pointer to the device path of the image.
  42                                The device path should not be freed by the caller.
  43   @param[out] Image            On return, points to the first byte of the image or NULL if the
  44                                image is not available. The image should not be freed by the caller
  45                                unless LoadImage() has been successfully called.
  46   @param[out] ImageSize        On return, the size of the image, or 0 if the image is not available.
  47   @param[out] BootOption       On return, points to TRUE if the image was intended as a boot option
  48                                or FALSE if it was not intended as a boot option.
  49
  50   @retval EFI_SUCCESS           Image information returned successfully.
  51   @retval EFI_NOT_FOUND         ImageIndex does not refer to a valid image.
  52   @retval EFI_INVALID_PARAMETER ImageDevicePath is NULL or Image is NULL or ImageSize is NULL or
  53                                 BootOption is NULL.
  54
  55 **/
  56 EFI_STATUS
  57 EFIAPI
  58 GetDefferedImageInfo (
  59   IN     EFI_DEFERRED_IMAGE_LOAD_PROTOCOL  *This,
  60   IN     UINTN                             ImageIndex,
  61      OUT EFI_DEVICE_PATH_PROTOCOL          **ImageDevicePath,
  62      OUT VOID                              **Image,
  63      OUT UINTN                             *ImageSize,
  64      OUT BOOLEAN                           *BootOption
  65   );
  66
  67 /**
  68   Defer the 3rd party image load and installs Deferred Image Load Protocol.
  69
  70   @param[in]  File                  This is a pointer to the device path of the file that
  71                                     is being dispatched. This will optionally be used for
  72                                     logging.
  73   @param[in]  BootPolicy            A boot policy that was used to call LoadImage() UEFI service.
  74
  75   @retval EFI_SUCCESS               The file is not 3rd party image and can be loaded immediately.
  76   @retval EFI_ACCESS_DENIED         The file is 3rd party image and needs deferred.
  77 **/
  78 EFI_STATUS
  79 Defer3rdPartyImageLoad (
  80   IN  CONST EFI_DEVICE_PATH_PROTOCOL   *File,
  81   IN  BOOLEAN                          BootPolicy
  82   );
  83
  84 /**
  85   Installs DeferredImageLoad Protocol and listens EndOfDxe event.
  86 **/
  87 VOID
  88 Defer3rdPartyImageLoadInitialize (
  89   VOID
  90   );
  91
  92 #endif