diff options
Diffstat (limited to 'roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2')
3 files changed, 177 insertions, 0 deletions
diff --git a/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c new file mode 100644 index 000000000..c34c41709 --- /dev/null +++ b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c @@ -0,0 +1,119 @@ +/** @file
+ This library is TPM2 TCG2 protocol lib.
+
+Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/Tpm2DeviceLib.h>
+#include <Protocol/Tcg2Protocol.h>
+#include <IndustryStandard/Tpm20.h>
+
+EFI_TCG2_PROTOCOL *mTcg2Protocol = NULL;
+
+/**
+ This service enables the sending of commands to the TPM2.
+
+ @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.
+ @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.
+ @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.
+ @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.
+
+ @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.
+ @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.
+ @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2SubmitCommand (
+ IN UINT32 InputParameterBlockSize,
+ IN UINT8 *InputParameterBlock,
+ IN OUT UINT32 *OutputParameterBlockSize,
+ IN UINT8 *OutputParameterBlock
+ )
+{
+ EFI_STATUS Status;
+ TPM2_RESPONSE_HEADER *Header;
+
+ if (mTcg2Protocol == NULL) {
+ Status = gBS->LocateProtocol (&gEfiTcg2ProtocolGuid, NULL, (VOID **) &mTcg2Protocol);
+ if (EFI_ERROR (Status)) {
+ //
+ // Tcg2 protocol is not installed. So, TPM2 is not present.
+ //
+ DEBUG ((EFI_D_ERROR, "Tpm2SubmitCommand - Tcg2 - %r\n", Status));
+ return EFI_NOT_FOUND;
+ }
+ }
+ //
+ // Assume when Tcg2 Protocol is ready, RequestUseTpm already done.
+ //
+ Status = mTcg2Protocol->SubmitCommand (
+ mTcg2Protocol,
+ InputParameterBlockSize,
+ InputParameterBlock,
+ *OutputParameterBlockSize,
+ OutputParameterBlock
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ Header = (TPM2_RESPONSE_HEADER *)OutputParameterBlock;
+ *OutputParameterBlockSize = SwapBytes32 (Header->paramSize);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This service requests use TPM2.
+
+ @retval EFI_SUCCESS Get the control of TPM2 chip.
+ @retval EFI_NOT_FOUND TPM2 not found.
+ @retval EFI_DEVICE_ERROR Unexpected device behavior.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RequestUseTpm (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ if (mTcg2Protocol == NULL) {
+ Status = gBS->LocateProtocol (&gEfiTcg2ProtocolGuid, NULL, (VOID **) &mTcg2Protocol);
+ if (EFI_ERROR (Status)) {
+ //
+ // Tcg2 protocol is not installed. So, TPM2 is not present.
+ //
+ DEBUG ((EFI_D_ERROR, "Tpm2RequestUseTpm - Tcg2 - %r\n", Status));
+ return EFI_NOT_FOUND;
+ }
+ }
+ //
+ // Assume when Tcg2 Protocol is ready, RequestUseTpm already done.
+ //
+ return EFI_SUCCESS;
+}
+
+/**
+ This service register TPM2 device.
+
+ @param Tpm2Device TPM2 device
+
+ @retval EFI_SUCCESS This TPM2 device is registered successfully.
+ @retval EFI_UNSUPPORTED System does not support register this TPM2 device.
+ @retval EFI_ALREADY_STARTED System already register this TPM2 device.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RegisterTpm2DeviceLib (
+ IN TPM2_DEVICE_INTERFACE *Tpm2Device
+ )
+{
+ return EFI_UNSUPPORTED;
+}
diff --git a/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.inf b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.inf new file mode 100644 index 000000000..eae524748 --- /dev/null +++ b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.inf @@ -0,0 +1,41 @@ +## @file
+# Provides function interfaces to communicate with TPM 2.0 device
+#
+# This library helps to use TPM 2.0 device in library function API
+# based on TPM2 protocol.
+#
+# Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = Tpm2DeviceLibTcg2
+ MODULE_UNI_FILE = Tpm2DeviceLibTcg2.uni
+ FILE_GUID = A1B0B230-67DC-431E-A94A-A96AF1EBE637
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = Tpm2DeviceLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ Tpm2DeviceLibTcg2.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ SecurityPkg/SecurityPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ DebugLib
+ UefiBootServicesTableLib
+
+[Protocols]
+ gEfiTcg2ProtocolGuid ## CONSUMES
diff --git a/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.uni b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.uni new file mode 100644 index 000000000..b6609f2f9 --- /dev/null +++ b/roms/edk2/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.uni @@ -0,0 +1,17 @@ +// /** @file
+// Provides function interfaces to communicate with TPM 2.0 device
+//
+// This library helps to use TPM 2.0 device in library function API
+// based on TCG2 protocol.
+//
+// Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT #language en-US "Provides function interfaces to communicate with TPM 2.0 device"
+
+#string STR_MODULE_DESCRIPTION #language en-US "This library helps to use TPM 2.0 device in library function API based on TCG2 protocol."
+
|