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- /** @file
- Produces a Firmware Management Protocol that supports updates to a firmware
- image stored in a firmware device with platform and firmware device specific
- information provided through PCDs and libraries.
- Copyright (c) Microsoft Corporation.<BR>
- Copyright (c) 2018 - 2021, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _FMP_DXE_H_
- #define _FMP_DXE_H_
- #include <PiDxe.h>
- #include <Library/DebugLib.h>
- #include <Library/BaseLib.h>
- #include <Library/BaseMemoryLib.h>
- #include <Library/BaseCryptLib.h>
- #include <Library/PcdLib.h>
- #include <Library/UefiBootServicesTableLib.h>
- #include <Library/UefiRuntimeServicesTableLib.h>
- #include <Library/MemoryAllocationLib.h>
- #include <Library/UefiLib.h>
- #include <Library/PrintLib.h>
- #include <Library/FmpAuthenticationLib.h>
- #include <Library/FmpDeviceLib.h>
- #include <Library/FmpPayloadHeaderLib.h>
- #include <Library/CapsuleUpdatePolicyLib.h>
- #include <Library/FmpDependencyLib.h>
- #include <Library/FmpDependencyCheckLib.h>
- #include <Library/FmpDependencyDeviceLib.h>
- #include <Protocol/FirmwareManagement.h>
- #include <Protocol/FirmwareManagementProgress.h>
- #include <Guid/SystemResourceTable.h>
- #include <Guid/EventGroup.h>
- #include <LastAttemptStatus.h>
- #include <FmpLastAttemptStatus.h>
- #include <Library/VariablePolicyHelperLib.h>
- #define VERSION_STRING_NOT_SUPPORTED L"VERSION STRING NOT SUPPORTED"
- #define VERSION_STRING_NOT_AVAILABLE L"VERSION STRING NOT AVAILABLE"
- ///
- ///
- ///
- #define FIRMWARE_MANAGEMENT_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('f','m','p','p')
- typedef struct {
- UINTN Signature;
- EFI_HANDLE Handle;
- EFI_FIRMWARE_MANAGEMENT_PROTOCOL Fmp;
- BOOLEAN DescriptorPopulated;
- EFI_FIRMWARE_IMAGE_DESCRIPTOR Descriptor;
- CHAR16 *ImageIdName;
- CHAR16 *VersionName;
- BOOLEAN RuntimeVersionSupported;
- EFI_EVENT FmpDeviceLockEvent;
- //
- // Indicates if an attempt has been made to lock a
- // FLASH storage device by calling FmpDeviceLock().
- // A FLASH storage device may not support being locked,
- // so this variable is set to TRUE even if FmpDeviceLock()
- // returns an error.
- //
- BOOLEAN FmpDeviceLocked;
- VOID *FmpDeviceContext;
- CHAR16 *VersionVariableName;
- CHAR16 *LsvVariableName;
- CHAR16 *LastAttemptStatusVariableName;
- CHAR16 *LastAttemptVersionVariableName;
- CHAR16 *FmpStateVariableName;
- BOOLEAN DependenciesSatisfied;
- } FIRMWARE_MANAGEMENT_PRIVATE_DATA;
- ///
- ///
- ///
- #define FIRMWARE_MANAGEMENT_PRIVATE_DATA_FROM_THIS(a) \
- CR (a, FIRMWARE_MANAGEMENT_PRIVATE_DATA, Fmp, FIRMWARE_MANAGEMENT_PRIVATE_DATA_SIGNATURE)
- ///
- /// Null-terminated Unicode string retrieved from PcdFmpDeviceImageIdName.
- ///
- extern CHAR16 *mImageIdName;
- /**
- Check to see if any of the keys in PcdFmpDevicePkcs7CertBufferXdr matches
- the test key. PcdFmpDeviceTestKeySha256Digest contains the SHA256 hash of
- the test key. For each key in PcdFmpDevicePkcs7CertBufferXdr, compute the
- SHA256 hash and compare it to PcdFmpDeviceTestKeySha256Digest. If the
- SHA256 hash matches or there is then error computing the SHA256 hash, then
- set PcdTestKeyUsed to TRUE. Skip this check if PcdTestKeyUsed is already
- TRUE or PcdFmpDeviceTestKeySha256Digest is not exactly SHA256_DIGEST_SIZE
- bytes.
- **/
- VOID
- DetectTestKey (
- VOID
- );
- /**
- Returns information about the current firmware image(s) of the device.
- This function allows a copy of the current firmware image to be created and saved.
- The saved copy could later been used, for example, in firmware image recovery or rollback.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[in, out] ImageInfoSize A pointer to the size, in bytes, of the ImageInfo buffer.
- On input, this is the size of the buffer allocated by the caller.
- On output, it is the size of the buffer returned by the firmware
- if the buffer was large enough, or the size of the buffer needed
- to contain the image(s) information if the buffer was too small.
- @param[in, out] ImageInfo A pointer to the buffer in which firmware places the current image(s)
- information. The information is an array of EFI_FIRMWARE_IMAGE_DESCRIPTORs.
- @param[out] DescriptorVersion A pointer to the location in which firmware returns the version number
- associated with the EFI_FIRMWARE_IMAGE_DESCRIPTOR.
- @param[out] DescriptorCount A pointer to the location in which firmware returns the number of
- descriptors or firmware images within this device.
- @param[out] DescriptorSize A pointer to the location in which firmware returns the size, in bytes,
- of an individual EFI_FIRMWARE_IMAGE_DESCRIPTOR.
- @param[out] PackageVersion A version number that represents all the firmware images in the device.
- The format is vendor specific and new version must have a greater value
- than the old version. If PackageVersion is not supported, the value is
- 0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version comparison
- is to be performed using PackageVersionName. A value of 0xFFFFFFFD indicates
- that package version update is in progress.
- @param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing the
- package version name. The buffer is allocated by this function with
- AllocatePool(), and it is the caller's responsibility to free it with a call
- to FreePool().
- @retval EFI_SUCCESS The device was successfully updated with the new image.
- @retval EFI_BUFFER_TOO_SMALL The ImageInfo buffer was too small. The current buffer size
- needed to hold the image(s) information is returned in ImageInfoSize.
- @retval EFI_INVALID_PARAMETER ImageInfoSize is NULL.
- @retval EFI_DEVICE_ERROR Valid information could not be returned. Possible corrupted image.
- **/
- EFI_STATUS
- EFIAPI
- GetTheImageInfo (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- IN OUT UINTN *ImageInfoSize,
- IN OUT EFI_FIRMWARE_IMAGE_DESCRIPTOR *ImageInfo,
- OUT UINT32 *DescriptorVersion,
- OUT UINT8 *DescriptorCount,
- OUT UINTN *DescriptorSize,
- OUT UINT32 *PackageVersion,
- OUT CHAR16 **PackageVersionName
- );
- /**
- Retrieves a copy of the current firmware image of the device.
- This function allows a copy of the current firmware image to be created and saved.
- The saved copy could later been used, for example, in firmware image recovery or rollback.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
- The number is between 1 and DescriptorCount.
- @param[in, out] Image Points to the buffer where the current image is copied to.
- @param[in, out] ImageSize On entry, points to the size of the buffer pointed to by Image, in bytes.
- On return, points to the length of the image, in bytes.
- @retval EFI_SUCCESS The device was successfully updated with the new image.
- @retval EFI_BUFFER_TOO_SMALL The buffer specified by ImageSize is too small to hold the
- image. The current buffer size needed to hold the image is returned
- in ImageSize.
- @retval EFI_INVALID_PARAMETER The Image was NULL.
- @retval EFI_NOT_FOUND The current image is not copied to the buffer.
- @retval EFI_UNSUPPORTED The operation is not supported.
- @retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
- **/
- EFI_STATUS
- EFIAPI
- GetTheImage (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- IN UINT8 ImageIndex,
- IN OUT VOID *Image,
- IN OUT UINTN *ImageSize
- );
- /**
- Checks if the firmware image is valid for the device.
- This function allows firmware update application to validate the firmware image without
- invoking the SetImage() first.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
- The number is between 1 and DescriptorCount.
- @param[in] Image Points to the new image.
- @param[in] ImageSize Size of the new image in bytes.
- @param[out] ImageUpdatable Indicates if the new image is valid for update. It also provides,
- if available, additional information if the image is invalid.
- @retval EFI_SUCCESS The image was successfully checked.
- @retval EFI_ABORTED The operation is aborted.
- @retval EFI_INVALID_PARAMETER The Image was NULL.
- @retval EFI_UNSUPPORTED The operation is not supported.
- @retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
- **/
- EFI_STATUS
- EFIAPI
- CheckTheImage (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- IN UINT8 ImageIndex,
- IN CONST VOID *Image,
- IN UINTN ImageSize,
- OUT UINT32 *ImageUpdatable
- );
- /**
- Updates the firmware image of the device.
- This function updates the hardware with the new firmware image.
- This function returns EFI_UNSUPPORTED if the firmware image is not updatable.
- If the firmware image is updatable, the function should perform the following minimal validations
- before proceeding to do the firmware image update.
- - Validate the image authentication if image has attribute
- IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED. The function returns
- EFI_SECURITY_VIOLATION if the validation fails.
- - Validate the image is a supported image for this device. The function returns EFI_ABORTED if
- the image is unsupported. The function can optionally provide more detailed information on
- why the image is not a supported image.
- - Validate the data from VendorCode if not null. Image validation must be performed before
- VendorCode data validation. VendorCode data is ignored or considered invalid if image
- validation failed. The function returns EFI_ABORTED if the data is invalid.
- VendorCode enables vendor to implement vendor-specific firmware image update policy. Null if
- the caller did not specify the policy or use the default policy. As an example, vendor can implement
- a policy to allow an option to force a firmware image update when the abort reason is due to the new
- firmware image version is older than the current firmware image version or bad image checksum.
- Sensitive operations such as those wiping the entire firmware image and render the device to be
- non-functional should be encoded in the image itself rather than passed with the VendorCode.
- AbortReason enables vendor to have the option to provide a more detailed description of the abort
- reason to the caller.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
- The number is between 1 and DescriptorCount.
- @param[in] Image Points to the new image.
- @param[in] ImageSize Size of the new image in bytes.
- @param[in] VendorCode This enables vendor to implement vendor-specific firmware image update policy.
- Null indicates the caller did not specify the policy or use the default policy.
- @param[in] Progress A function used by the driver to report the progress of the firmware update.
- @param[out] AbortReason A pointer to a pointer to a null-terminated string providing more
- details for the aborted operation. The buffer is allocated by this function
- with AllocatePool(), and it is the caller's responsibility to free it with a
- call to FreePool().
- @retval EFI_SUCCESS The device was successfully updated with the new image.
- @retval EFI_ABORTED The operation is aborted.
- @retval EFI_INVALID_PARAMETER The Image was NULL.
- @retval EFI_UNSUPPORTED The operation is not supported.
- @retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
- **/
- EFI_STATUS
- EFIAPI
- SetTheImage (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- IN UINT8 ImageIndex,
- IN CONST VOID *Image,
- IN UINTN ImageSize,
- IN CONST VOID *VendorCode,
- IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS Progress,
- OUT CHAR16 **AbortReason
- );
- /**
- Returns information about the firmware package.
- This function returns package information.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[out] PackageVersion A version number that represents all the firmware images in the device.
- The format is vendor specific and new version must have a greater value
- than the old version. If PackageVersion is not supported, the value is
- 0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version
- comparison is to be performed using PackageVersionName. A value of
- 0xFFFFFFFD indicates that package version update is in progress.
- @param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing
- the package version name. The buffer is allocated by this function with
- AllocatePool(), and it is the caller's responsibility to free it with a
- call to FreePool().
- @param[out] PackageVersionNameMaxLen The maximum length of package version name if device supports update of
- package version name. A value of 0 indicates the device does not support
- update of package version name. Length is the number of Unicode characters,
- including the terminating null character.
- @param[out] AttributesSupported Package attributes that are supported by this device. See 'Package Attribute
- Definitions' for possible returned values of this parameter. A value of 1
- indicates the attribute is supported and the current setting value is
- indicated in AttributesSetting. A value of 0 indicates the attribute is not
- supported and the current setting value in AttributesSetting is meaningless.
- @param[out] AttributesSetting Package attributes. See 'Package Attribute Definitions' for possible returned
- values of this parameter
- @retval EFI_SUCCESS The package information was successfully returned.
- @retval EFI_UNSUPPORTED The operation is not supported.
- **/
- EFI_STATUS
- EFIAPI
- GetPackageInfo (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- OUT UINT32 *PackageVersion,
- OUT CHAR16 **PackageVersionName,
- OUT UINT32 *PackageVersionNameMaxLen,
- OUT UINT64 *AttributesSupported,
- OUT UINT64 *AttributesSetting
- );
- /**
- Updates information about the firmware package.
- This function updates package information.
- This function returns EFI_UNSUPPORTED if the package information is not updatable.
- VendorCode enables vendor to implement vendor-specific package information update policy.
- Null if the caller did not specify this policy or use the default policy.
- @param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
- @param[in] Image Points to the authentication image.
- Null if authentication is not required.
- @param[in] ImageSize Size of the authentication image in bytes.
- 0 if authentication is not required.
- @param[in] VendorCode This enables vendor to implement vendor-specific firmware
- image update policy.
- Null indicates the caller did not specify this policy or use
- the default policy.
- @param[in] PackageVersion The new package version.
- @param[in] PackageVersionName A pointer to the new null-terminated Unicode string representing
- the package version name.
- The string length is equal to or less than the value returned in
- PackageVersionNameMaxLen.
- @retval EFI_SUCCESS The device was successfully updated with the new package
- information.
- @retval EFI_INVALID_PARAMETER The PackageVersionName length is longer than the value
- returned in PackageVersionNameMaxLen.
- @retval EFI_UNSUPPORTED The operation is not supported.
- @retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
- **/
- EFI_STATUS
- EFIAPI
- SetPackageInfo (
- IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
- IN CONST VOID *Image,
- IN UINTN ImageSize,
- IN CONST VOID *VendorCode,
- IN UINT32 PackageVersion,
- IN CONST CHAR16 *PackageVersionName
- );
- #endif
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