diff options
Diffstat (limited to 'FmpDevicePkg/Include/Library')
| -rw-r--r-- | FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h | 120 | ||||
| -rw-r--r-- | FmpDevicePkg/Include/Library/FmpDeviceLib.h | 405 | ||||
| -rw-r--r-- | FmpDevicePkg/Include/Library/FmpPayloadHeaderLib.h | 100 |
3 files changed, 625 insertions, 0 deletions
diff --git a/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h b/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h new file mode 100644 index 0000000000..acd3ce5bf5 --- /dev/null +++ b/FmpDevicePkg/Include/Library/CapsuleUpdatePolicyLib.h @@ -0,0 +1,120 @@ +/** @file
+ Provides platform policy services used during a capsule update.
+
+ Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+ Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+**/
+
+#ifndef __CAPSULE_UPDATE_POLICY_LIB__
+#define __CAPSULE_UPDATE_POLICY_LIB__
+
+/**
+ Determine if the system power state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system power state supports a capsule
+ update. Returns FALSE if system power state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System power state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemPower (
+ OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the system thermal state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system thermal state supports a capsule
+ update. Returns FALSE if system thermal state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System thermal state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemThermal (
+ IN OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the system environment state supports a capsule update.
+
+ @param[out] Good Returns TRUE if system environment state supports a capsule
+ update. Returns FALSE if system environment state does not
+ support a capsule update. Return value is only valid if
+ return status is EFI_SUCCESS.
+
+ @retval EFI_SUCCESS Good parameter has been updated with result.
+ @retval EFI_INVALID_PARAMETER Good is NULL.
+ @retval EFI_DEVICE_ERROR System environment state can not be determined.
+
+**/
+EFI_STATUS
+EFIAPI
+CheckSystemEnvironment (
+ IN OUT BOOLEAN *Good
+ );
+
+/**
+ Determines if the Lowest Supported Version checks should be performed. The
+ expected result from this function is TRUE. A platform can choose to return
+ FALSE (e.g. during manufacturing or servicing) to allow a capsule update to a
+ version below the current Lowest Supported Version.
+
+ @retval TRUE The lowest supported version check is required.
+ @retval FALSE Do not perform lowest support version check.
+
+**/
+BOOLEAN
+EFIAPI
+IsLowestSupportedVersionCheckRequired (
+ VOID
+ );
+
+/**
+ Determines if the FMP device should be locked when the event specified by
+ PcdFmpDeviceLockEventGuid is signaled. The expected result from this function
+ is TRUE so the FMP device is always locked. A platform can choose to return
+ FALSE (e.g. during manufacturing) to allow FMP devices to remain unlocked.
+
+ @retval TRUE The FMP device lock action is required at lock event guid.
+ @retval FALSE Do not perform FMP device lock at lock event guid.
+
+**/
+BOOLEAN
+EFIAPI
+IsLockFmpDeviceAtLockEventGuidRequired (
+ VOID
+ );
+
+#endif
diff --git a/FmpDevicePkg/Include/Library/FmpDeviceLib.h b/FmpDevicePkg/Include/Library/FmpDeviceLib.h new file mode 100644 index 0000000000..08125f0096 --- /dev/null +++ b/FmpDevicePkg/Include/Library/FmpDeviceLib.h @@ -0,0 +1,405 @@ +/** @file
+ Provides firmware device specific services to support updates of a firmware
+ image stored in a firmware device.
+
+ Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+ Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+**/
+
+#ifndef __FMP_DEVICE_LIB__
+#define __FMP_DEVICE_LIB__
+
+#include <Protocol/FirmwareManagement.h>
+
+/**
+ Callback function that installs a Firmware Management Protocol instance onto
+ a handle.
+
+ @param[in] Handle The device handle to install a Firmware Management
+ Protocol instance.
+
+ @retval EFI_SUCCESS A Firmware Management Protocol instance was
+ installed onto Handle.
+ @retval EFI_INVALID_PARAMETER Handle is invalid
+ @retval other A Firmware Management Protocol instance could
+ not be installed onto Handle.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *FMP_DEVICE_LIB_REGISTER_FMP_INSTALLER)(
+ IN EFI_HANDLE Handle
+ );
+
+/**
+ Provide a function to install the Firmware Management Protocol instance onto a
+ device handle when the device is managed by a driver that follows the UEFI
+ Driver Model. If the device is not managed by a driver that follows the UEFI
+ Driver Model, then EFI_UNSUPPORTED is returned.
+
+ @param[in] FmpInstaller Function that installs the Firmware Management
+ Protocol.
+
+ @retval EFI_SUCCESS The device is managed by a driver that follows the
+ UEFI Driver Model. FmpInstaller must be called on
+ each Driver Binding Start().
+ @retval EFI_UNSUPPORTED The device is not managed by a driver that follows
+ the UEFI Driver Model.
+ @retval other The Firmware Management Protocol for this firmware
+ device is not installed. The firmware device is
+ still locked using FmpDeviceLock().
+
+**/
+EFI_STATUS
+EFIAPI
+RegisterFmpInstaller (
+ IN FMP_DEVICE_LIB_REGISTER_FMP_INSTALLER FmpInstaller
+ );
+
+/**
+ Returns the size, in bytes, of the firmware image currently stored in the
+ firmware device. This function is used to by the GetImage() and
+ GetImageInfo() services of the Firmware Management Protocol. If the image
+ size can not be determined from the firmware device, then 0 must be returned.
+
+ @param[out] Size Pointer to the size, in bytes, of the firmware image
+ currently stored in the firmware device.
+
+ @retval EFI_SUCCESS The size of the firmware image currently
+ stored in the firmware device was returned.
+ @retval EFI_INVALID_PARAMETER Size is NULL.
+ @retval EFI_UNSUPPORTED The firmware device does not support reporting
+ the size of the currently stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occured attempting to determine the
+ size of the firmware image currently stored in
+ in the firmware device.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetSize (
+ OUT UINTN *Size
+ );
+
+/**
+ Returns the GUID value used to fill in the ImageTypeId field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_UNSUPPORTED is returned,
+ then the ImageTypeId field is set to gEfiCallerIdGuid. If EFI_SUCCESS is
+ returned, then ImageTypeId is set to the Guid returned from this function.
+
+ @param[out] Guid Double pointer to a GUID value that is updated to point to
+ to a GUID value. The GUID value is not allocated and must
+ not be modified or freed by the caller.
+
+ @retval EFI_SUCCESS EFI_FIRMWARE_IMAGE_DESCRIPTOR ImageTypeId GUID is set
+ to the returned Guid value.
+ @retval EFI_UNSUPPORTED EFI_FIRMWARE_IMAGE_DESCRIPTOR ImageTypeId GUID is set
+ to gEfiCallerIdGuid.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetImageTypeIdGuidPtr (
+ OUT EFI_GUID **Guid
+ );
+
+/**
+ Returns values used to fill in the AttributesSupported and AttributesSettings
+ fields of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the
+ GetImageInfo() service of the Firmware Management Protocol. The following
+ bit values from the Firmware Management Protocol may be combined:
+ IMAGE_ATTRIBUTE_IMAGE_UPDATABLE
+ IMAGE_ATTRIBUTE_RESET_REQUIRED
+ IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED
+ IMAGE_ATTRIBUTE_IN_USE
+ IMAGE_ATTRIBUTE_UEFI_IMAGE
+
+ @param[out] Supported Attributes supported by this firmware device.
+ @param[out] Setting Attributes settings for this firmware device.
+
+ @retval EFI_SUCCESS The attributes supported by the firmware
+ device were returned.
+ @retval EFI_INVALID_PARAMETER Supported is NULL.
+ @retval EFI_INVALID_PARAMETER Setting is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetAttributes (
+ IN OUT UINT64 *Supported,
+ IN OUT UINT64 *Setting
+ );
+
+/**
+ Returns the value used to fill in the LowestSupportedVersion field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_SUCCESS is returned, then
+ the firmware device supports a method to report the LowestSupportedVersion
+ value from the currently stored firmware image. If the value can not be
+ reported for the firmware image currently stored in the firmware device, then
+ EFI_UNSUPPORTED must be returned. EFI_DEVICE_ERROR is returned if an error
+ occurs attempting to retrieve the LowestSupportedVersion value for the
+ currently stored firmware image.
+
+ @note It is recommended that all firmware devices support a method to report
+ the LowestSupportedVersion value from the currently stored firmware
+ image.
+
+ @param[out] LowestSupportedVersion LowestSupportedVersion value retrieved
+ from the currently stored firmware image.
+
+ @retval EFI_SUCCESS The lowest supported version of currently stored
+ firmware image was returned in LowestSupportedVersion.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method to
+ report the lowest supported version of the currently
+ stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the lowest
+ supported version of the currently stored firmware
+ image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetLowestSupportedVersion (
+ OUT UINT32 *LowestSupportedVersion
+ );
+
+/**
+ Returns the Null-terminated Unicode string that is used to fill in the
+ VersionName field of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is
+ returned by the GetImageInfo() service of the Firmware Management Protocol.
+ The returned string must be allocated using EFI_BOOT_SERVICES.AllocatePool().
+
+ @note It is recommended that all firmware devices support a method to report
+ the VersionName string from the currently stored firmware image.
+
+ @param[out] VersionString The version string retrieved from the currently
+ stored firmware image.
+
+ @retval EFI_SUCCESS The version string of currently stored
+ firmware image was returned in Version.
+ @retval EFI_INVALID_PARAMETER VersionString is NULL.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method
+ to report the version string of the currently
+ stored firmware image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the
+ version string of the currently stored
+ firmware image.
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate the
+ buffer for the version string of the currently
+ stored firmware image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetVersionString (
+ OUT CHAR16 **VersionString
+ );
+
+/**
+ Returns the value used to fill in the Version field of the
+ EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the GetImageInfo()
+ service of the Firmware Management Protocol. If EFI_SUCCESS is returned, then
+ the firmware device supports a method to report the Version value from the
+ currently stored firmware image. If the value can not be reported for the
+ firmware image currently stored in the firmware device, then EFI_UNSUPPORTED
+ must be returned. EFI_DEVICE_ERROR is returned if an error occurs attempting
+ to retrieve the LowestSupportedVersion value for the currently stored firmware
+ image.
+
+ @note It is recommended that all firmware devices support a method to report
+ the Version value from the currently stored firmware image.
+
+ @param[out] Version The version value retrieved from the currently stored
+ firmware image.
+
+ @retval EFI_SUCCESS The version of currently stored firmware image was
+ returned in Version.
+ @retval EFI_UNSUPPORTED The firmware device does not support a method to
+ report the version of the currently stored firmware
+ image.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the version
+ of the currently stored firmware image.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetVersion (
+ OUT UINT32 *Version
+ );
+
+/**
+ Returns a copy of the firmware image currently stored in the firmware device.
+
+ @note It is recommended that all firmware devices support a method to retrieve
+ a copy currently stored firmware image. This can be used to support
+ features such as recovery and rollback.
+
+ @param[out] Image Pointer to a caller allocated buffer where the
+ currently stored firmware image is copied to.
+ @param[in out] ImageSize Pointer the size, in bytes, of the Image buffer.
+ On return, points to the size, in bytes, of firmware
+ image currently stored in the firmware device.
+
+ @retval EFI_SUCCESS Image contains a copy of the firmware image
+ currently stored in the firmware device, and
+ ImageSize contains the size, in bytes, of the
+ firmware image currently stored in the
+ firmware device.
+ @retval EFI_BUFFER_TOO_SMALL The buffer specified by ImageSize is too small
+ to hold the firmware image currently stored in
+ the firmware device. The buffer size required
+ is returned in ImageSize.
+ @retval EFI_INVALID_PARAMETER The Image is NULL.
+ @retval EFI_INVALID_PARAMETER The ImageSize is NULL.
+ @retval EFI_UNSUPPORTED The operation is not supported.
+ @retval EFI_DEVICE_ERROR An error occurred attempting to retrieve the
+ firmware image currently stored in the firmware
+ device.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceGetImage (
+ IN OUT VOID *Image,
+ IN IN OUT UINTN *ImageSize
+ );
+
+/**
+ Checks if a new firmware image is valid for the firmware device. This
+ function allows firmware update operation to validate the firmware image
+ before FmpDeviceSetImage() is called.
+
+ @param[in] Image Points to a new firmware image.
+ @param[in] ImageSize Size, in bytes, of a new firmware image.
+ @param[out] ImageUpdatable Indicates if a new firmware image is valid for
+ a firmware update to the firmware device. The
+ following values from the Firmware Management
+ Protocol are supported:
+ IMAGE_UPDATABLE_VALID
+ IMAGE_UPDATABLE_INVALID
+ IMAGE_UPDATABLE_INVALID_TYPE
+ IMAGE_UPDATABLE_INVALID_OLD
+ IMAGE_UPDATABLE_VALID_WITH_VENDOR_CODE
+
+ @retval EFI_SUCCESS The image was successfully checked. Additional
+ status information is returned in
+ ImageUpdateable.
+ @retval EFI_INVALID_PARAMETER Image is NULL.
+ @retval EFI_INVALID_PARAMETER ImageUpdateable is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceCheckImage (
+ IN CONST VOID *Image,
+ IN UINTN ImageSize,
+ OUT UINT32 *ImageUpdateable
+ );
+
+/**
+ Updates a firmware device with a 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 that the image is a supported image for this firmware device.
+ Return EFI_ABORTED if the image is not supported. Additional details
+ on why the image is not a supported image may be returned in AbortReason.
+ - Validate the data from VendorCode if is not NULL. Firmware image
+ validation must be performed before VendorCode data validation.
+ VendorCode data is ignored or considered invalid if image validation
+ fails. Return EFI_ABORTED if the VendorCode 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] Image Points to the new firmware image.
+ @param[in] ImageSize Size, in bytes, of the new firmware image.
+ @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 to report the progress of
+ updating the firmware device with the new
+ firmware image.
+ @param[in] CapsuleFwVersion The version of the new firmware image from the
+ update capsule that provided the new firmware
+ image.
+ @param[out] AbortReason A pointer to a pointer to a Null-terminated
+ Unicode string providing more details on an
+ aborted operation. The buffer is allocated by
+ this function with
+ EFI_BOOT_SERVICES.AllocatePool(). It is the
+ caller's responsibility to free this buffer with
+ EFI_BOOT_SERVICES.FreePool().
+
+ @retval EFI_SUCCESS The firmware device was successfully updated
+ with the new firmware image.
+ @retval EFI_ABORTED The operation is aborted. Additional details
+ are provided in AbortReason.
+ @retval EFI_INVALID_PARAMETER The Image was NULL.
+ @retval EFI_UNSUPPORTED The operation is not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceSetImage (
+ IN CONST VOID *Image,
+ IN UINTN ImageSize,
+ IN CONST VOID *VendorCode, OPTIONAL
+ IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS Progress, OPTIONAL
+ IN UINT32 CapsuleFwVersion,
+ OUT CHAR16 **AbortReason
+ );
+
+/**
+ Lock the firmware device that contains a firmware image. Once a firmware
+ device is locked, any attempts to modify the firmware image contents in the
+ firmware device must fail.
+
+ @note It is recommended that all firmware devices support a lock method to
+ prevent modifications to a stored firmware image.
+
+ @note A firmware device lock mechanism is typically only cleared by a full
+ system reset (not just sleep state/low power mode).
+
+ @retval EFI_SUCCESS The firmware device was locked.
+ @retval EFI_UNSUPPORTED The firmware device does not support locking
+
+**/
+EFI_STATUS
+EFIAPI
+FmpDeviceLock (
+ VOID
+ );
+
+#endif
diff --git a/FmpDevicePkg/Include/Library/FmpPayloadHeaderLib.h b/FmpDevicePkg/Include/Library/FmpPayloadHeaderLib.h new file mode 100644 index 0000000000..cb5622e9ce --- /dev/null +++ b/FmpDevicePkg/Include/Library/FmpPayloadHeaderLib.h @@ -0,0 +1,100 @@ +/** @file
+ Provides services to retrieve values from a capsule's FMP Payload Header.
+ The structure is not included in the library class. Instead, services are
+ provided to retrieve information from the FMP Payload Header. If information
+ is added to the FMP Payload Header, then new services may be added to this
+ library class to retrieve the new information.
+
+ Copyright (c) 2016, Microsoft Corporation. All rights reserved.<BR>
+ Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+**/
+
+#ifndef _FMP_PAYLOAD_HEADER_LIB_H__
+#define _FMP_PAYLOAD_HEADER_LIB_H__
+
+/**
+ Returns the FMP Payload Header size in bytes.
+
+ @param[in] Header FMP Payload Header to evaluate
+ @param[in] FmpPayloadSize Size of FMP payload
+ @param[out] Size The size, in bytes, of the FMP Payload Header.
+
+ @retval EFI_SUCCESS The firmware version was returned.
+ @retval EFI_INVALID_PARAMETER Header is NULL.
+ @retval EFI_INVALID_PARAMETER Size is NULL.
+ @retval EFI_INVALID_PARAMETER Header is not a valid FMP Payload Header.
+
+**/
+EFI_STATUS
+EFIAPI
+GetFmpPayloadHeaderSize (
+ IN CONST VOID *Header,
+ IN CONST UINTN FmpPayloadSize,
+ OUT UINT32 *Size
+ );
+
+/**
+ Returns the version described in the FMP Payload Header.
+
+ @param[in] Header FMP Payload Header to evaluate
+ @param[in] FmpPayloadSize Size of FMP payload
+ @param[out] Version The firmware version described in the FMP Payload
+ Header.
+
+ @retval EFI_SUCCESS The firmware version was returned.
+ @retval EFI_INVALID_PARAMETER Header is NULL.
+ @retval EFI_INVALID_PARAMETER Version is NULL.
+ @retval EFI_INVALID_PARAMETER Header is not a valid FMP Payload Header.
+
+**/
+EFI_STATUS
+EFIAPI
+GetFmpPayloadHeaderVersion (
+ IN CONST VOID *Header,
+ IN CONST UINTN FmpPayloadSize,
+ OUT UINT32 *Version
+ );
+
+/**
+ Returns the lowest supported version described in the FMP Payload Header.
+
+ @param[in] Header FMP Payload Header to evaluate
+ @param[in] FmpPayloadSize Size of FMP payload
+ @param[out] LowestSupportedVersion The lowest supported version described in
+ the FMP Payload Header.
+
+ @retval EFI_SUCCESS The lowest support version was returned.
+ @retval EFI_INVALID_PARAMETER Header is NULL.
+ @retval EFI_INVALID_PARAMETER LowestSupportedVersion is NULL.
+ @retval EFI_INVALID_PARAMETER Header is not a valid FMP Payload Header.
+
+**/
+EFI_STATUS
+EFIAPI
+GetFmpPayloadHeaderLowestSupportedVersion (
+ IN CONST VOID *Header,
+ IN CONST UINTN FmpPayloadSize,
+ IN OUT UINT32 *LowestSupportedVersion
+ );
+
+#endif
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