mirror of https://github.com/acidanthera/audk.git
356 lines
19 KiB
C
356 lines
19 KiB
C
/** @file
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Produces a Firmware Management Protocol that supports updates to a firmware
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image stored in a firmware device with platform and firmware device specific
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information provided through PCDs and libraries.
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Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
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Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _FMP_DXE_H_
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#define _FMP_DXE_H_
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#include <PiDxe.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BaseCryptLib.h>
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#include <Library/PcdLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiLib.h>
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#include <Library/PrintLib.h>
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#include <Library/FmpAuthenticationLib.h>
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#include <Library/FmpDeviceLib.h>
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#include <Library/FmpPayloadHeaderLib.h>
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#include <Library/CapsuleUpdatePolicyLib.h>
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#include <Protocol/FirmwareManagement.h>
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#include <Protocol/FirmwareManagementProgress.h>
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#include <Protocol/VariableLock.h>
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#include <Guid/SystemResourceTable.h>
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#include <Guid/EventGroup.h>
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#define VERSION_STRING_NOT_SUPPORTED L"VERSION STRING NOT SUPPORTED"
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#define VERSION_STRING_NOT_AVAILABLE L"VERSION STRING NOT AVAILABLE"
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///
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///
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///
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#define FIRMWARE_MANAGEMENT_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('f','m','p','p')
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typedef struct {
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UINTN Signature;
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EFI_HANDLE Handle;
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EFI_FIRMWARE_MANAGEMENT_PROTOCOL Fmp;
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BOOLEAN DescriptorPopulated;
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EFI_FIRMWARE_IMAGE_DESCRIPTOR Descriptor;
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CHAR16 *ImageIdName;
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CHAR16 *VersionName;
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BOOLEAN RuntimeVersionSupported;
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EFI_EVENT FmpDeviceLockEvent;
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//
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// Indicates if an attempt has been made to lock a
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// FLASH storage device by calling FmpDeviceLock().
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// A FLASH storage device may not support being locked,
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// so this variable is set to TRUE even if FmpDeviceLock()
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// returns an error.
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//
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BOOLEAN FmpDeviceLocked;
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VOID *FmpDeviceContext;
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CHAR16 *VersionVariableName;
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CHAR16 *LsvVariableName;
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CHAR16 *LastAttemptStatusVariableName;
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CHAR16 *LastAttemptVersionVariableName;
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CHAR16 *FmpStateVariableName;
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} FIRMWARE_MANAGEMENT_PRIVATE_DATA;
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///
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///
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///
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#define FIRMWARE_MANAGEMENT_PRIVATE_DATA_FROM_THIS(a) \
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CR (a, FIRMWARE_MANAGEMENT_PRIVATE_DATA, Fmp, FIRMWARE_MANAGEMENT_PRIVATE_DATA_SIGNATURE)
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///
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/// Null-terminated Unicode string retrieved from PcdFmpDeviceImageIdName.
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///
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extern CHAR16 *mImageIdName;
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/**
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Check to see if any of the keys in PcdFmpDevicePkcs7CertBufferXdr matches
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the test key. PcdFmpDeviceTestKeySha256Digest contains the SHA256 hash of
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the test key. For each key in PcdFmpDevicePkcs7CertBufferXdr, compute the
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SHA256 hash and compare it to PcdFmpDeviceTestKeySha256Digest. If the
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SHA256 hash matches or there is then error computing the SHA256 hash, then
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set PcdTestKeyUsed to TRUE. Skip this check if PcdTestKeyUsed is already
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TRUE or PcdFmpDeviceTestKeySha256Digest is not exactly SHA256_DIGEST_SIZE
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bytes.
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**/
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VOID
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DetectTestKey (
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VOID
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);
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/**
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Returns information about the current firmware image(s) of the device.
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This function allows a copy of the current firmware image to be created and saved.
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The saved copy could later been used, for example, in firmware image recovery or rollback.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in, out] ImageInfoSize A pointer to the size, in bytes, of the ImageInfo buffer.
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On input, this is the size of the buffer allocated by the caller.
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On output, it is the size of the buffer returned by the firmware
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if the buffer was large enough, or the size of the buffer needed
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to contain the image(s) information if the buffer was too small.
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@param[in, out] ImageInfo A pointer to the buffer in which firmware places the current image(s)
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information. The information is an array of EFI_FIRMWARE_IMAGE_DESCRIPTORs.
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@param[out] DescriptorVersion A pointer to the location in which firmware returns the version number
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associated with the EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] DescriptorCount A pointer to the location in which firmware returns the number of
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descriptors or firmware images within this device.
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@param[out] DescriptorSize A pointer to the location in which firmware returns the size, in bytes,
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of an individual EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] PackageVersion A version number that represents all the firmware images in the device.
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The format is vendor specific and new version must have a greater value
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than the old version. If PackageVersion is not supported, the value is
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0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version comparison
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is to be performed using PackageVersionName. A value of 0xFFFFFFFD indicates
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that package version update is in progress.
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@param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing the
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package version name. The buffer is allocated by this function with
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AllocatePool(), and it is the caller's responsibility to free it with a call
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to FreePool().
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_BUFFER_TOO_SMALL The ImageInfo buffer was too small. The current buffer size
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needed to hold the image(s) information is returned in ImageInfoSize.
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@retval EFI_INVALID_PARAMETER ImageInfoSize is NULL.
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@retval EFI_DEVICE_ERROR Valid information could not be returned. Possible corrupted image.
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**/
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EFI_STATUS
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EFIAPI
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GetTheImageInfo (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN OUT UINTN *ImageInfoSize,
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IN OUT EFI_FIRMWARE_IMAGE_DESCRIPTOR *ImageInfo,
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OUT UINT32 *DescriptorVersion,
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OUT UINT8 *DescriptorCount,
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OUT UINTN *DescriptorSize,
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OUT UINT32 *PackageVersion,
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OUT CHAR16 **PackageVersionName
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);
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/**
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Retrieves a copy of the current firmware image of the device.
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This function allows a copy of the current firmware image to be created and saved.
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The saved copy could later been used, for example, in firmware image recovery or rollback.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in, out] Image Points to the buffer where the current image is copied to.
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@param[in, out] ImageSize On entry, points to the size of the buffer pointed to by Image, in bytes.
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On return, points to the length of the image, in bytes.
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_BUFFER_TOO_SMALL The buffer specified by ImageSize is too small to hold the
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image. The current buffer size needed to hold the image is returned
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in ImageSize.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_NOT_FOUND The current image is not copied to the buffer.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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GetTheImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN OUT VOID *Image,
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IN OUT UINTN *ImageSize
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);
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/**
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Checks if the firmware image is valid for the device.
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This function allows firmware update application to validate the firmware image without
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invoking the SetImage() first.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in] Image Points to the new image.
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@param[in] ImageSize Size of the new image in bytes.
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@param[out] ImageUpdatable Indicates if the new image is valid for update. It also provides,
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if available, additional information if the image is invalid.
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@retval EFI_SUCCESS The image was successfully checked.
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@retval EFI_ABORTED The operation is aborted.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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CheckTheImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN CONST VOID *Image,
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IN UINTN ImageSize,
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OUT UINT32 *ImageUpdatable
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);
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/**
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Updates the firmware image of the device.
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This function updates the hardware with the new firmware image.
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This function returns EFI_UNSUPPORTED if the firmware image is not updatable.
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If the firmware image is updatable, the function should perform the following minimal validations
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before proceeding to do the firmware image update.
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- Validate the image authentication if image has attribute
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IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED. The function returns
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EFI_SECURITY_VIOLATION if the validation fails.
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- Validate the image is a supported image for this device. The function returns EFI_ABORTED if
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the image is unsupported. The function can optionally provide more detailed information on
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why the image is not a supported image.
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- Validate the data from VendorCode if not null. Image validation must be performed before
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VendorCode data validation. VendorCode data is ignored or considered invalid if image
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validation failed. The function returns EFI_ABORTED if the data is invalid.
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VendorCode enables vendor to implement vendor-specific firmware image update policy. Null if
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the caller did not specify the policy or use the default policy. As an example, vendor can implement
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a policy to allow an option to force a firmware image update when the abort reason is due to the new
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firmware image version is older than the current firmware image version or bad image checksum.
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Sensitive operations such as those wiping the entire firmware image and render the device to be
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non-functional should be encoded in the image itself rather than passed with the VendorCode.
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AbortReason enables vendor to have the option to provide a more detailed description of the abort
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reason to the caller.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in] Image Points to the new image.
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@param[in] ImageSize Size of the new image in bytes.
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@param[in] VendorCode This enables vendor to implement vendor-specific firmware image update policy.
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Null indicates the caller did not specify the policy or use the default policy.
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@param[in] Progress A function used by the driver to report the progress of the firmware update.
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@param[out] AbortReason A pointer to a pointer to a null-terminated string providing more
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details for the aborted operation. The buffer is allocated by this function
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with AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_ABORTED The operation is aborted.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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SetTheImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN CONST VOID *Image,
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IN UINTN ImageSize,
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IN CONST VOID *VendorCode,
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IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS Progress,
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OUT CHAR16 **AbortReason
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);
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/**
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Returns information about the firmware package.
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This function returns package information.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[out] PackageVersion A version number that represents all the firmware images in the device.
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The format is vendor specific and new version must have a greater value
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than the old version. If PackageVersion is not supported, the value is
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0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version
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comparison is to be performed using PackageVersionName. A value of
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0xFFFFFFFD indicates that package version update is in progress.
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@param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing
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the package version name. The buffer is allocated by this function with
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AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@param[out] PackageVersionNameMaxLen The maximum length of package version name if device supports update of
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package version name. A value of 0 indicates the device does not support
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update of package version name. Length is the number of Unicode characters,
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including the terminating null character.
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@param[out] AttributesSupported Package attributes that are supported by this device. See 'Package Attribute
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Definitions' for possible returned values of this parameter. A value of 1
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indicates the attribute is supported and the current setting value is
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indicated in AttributesSetting. A value of 0 indicates the attribute is not
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supported and the current setting value in AttributesSetting is meaningless.
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@param[out] AttributesSetting Package attributes. See 'Package Attribute Definitions' for possible returned
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values of this parameter
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@retval EFI_SUCCESS The package information was successfully returned.
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@retval EFI_UNSUPPORTED The operation is not supported.
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**/
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EFI_STATUS
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EFIAPI
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GetPackageInfo (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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OUT UINT32 *PackageVersion,
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OUT CHAR16 **PackageVersionName,
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OUT UINT32 *PackageVersionNameMaxLen,
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OUT UINT64 *AttributesSupported,
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OUT UINT64 *AttributesSetting
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);
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/**
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Updates information about the firmware package.
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This function updates package information.
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This function returns EFI_UNSUPPORTED if the package information is not updatable.
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VendorCode enables vendor to implement vendor-specific package information update policy.
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Null if the caller did not specify this policy or use the default policy.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] Image Points to the authentication image.
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Null if authentication is not required.
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@param[in] ImageSize Size of the authentication image in bytes.
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0 if authentication is not required.
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@param[in] VendorCode This enables vendor to implement vendor-specific firmware
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image update policy.
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Null indicates the caller did not specify this policy or use
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the default policy.
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@param[in] PackageVersion The new package version.
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@param[in] PackageVersionName A pointer to the new null-terminated Unicode string representing
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the package version name.
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The string length is equal to or less than the value returned in
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PackageVersionNameMaxLen.
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@retval EFI_SUCCESS The device was successfully updated with the new package
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information.
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@retval EFI_INVALID_PARAMETER The PackageVersionName length is longer than the value
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returned in PackageVersionNameMaxLen.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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SetPackageInfo (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN CONST VOID *Image,
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IN UINTN ImageSize,
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IN CONST VOID *VendorCode,
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IN UINT32 PackageVersion,
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IN CONST CHAR16 *PackageVersionName
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);
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#endif
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