diff options
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg')
3 files changed, 160 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.c b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.c new file mode 100644 index 00000000..cecd7234 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.c @@ -0,0 +1,102 @@ +/** @file + This library is TPM12 TCG protocol lib. + +Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR> +SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include <Uefi.h> +#include <Library/BaseLib.h> +#include <Library/BaseMemoryLib.h> +#include <Library/DebugLib.h> +#include <Library/UefiBootServicesTableLib.h> +#include <Library/Tpm12DeviceLib.h> +#include <Protocol/TcgService.h> +#include <IndustryStandard/Tpm12.h> + +EFI_TCG_PROTOCOL *mTcgProtocol = NULL; + +/** + This service enables the sending of commands to the TPM12. + + @param[in] InputParameterBlockSize Size of the TPM12 input parameter block. + @param[in] InputParameterBlock Pointer to the TPM12 input parameter block. + @param[in,out] OutputParameterBlockSize Size of the TPM12 output parameter block. + @param[in] OutputParameterBlock Pointer to the TPM12 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 +Tpm12SubmitCommand ( + IN UINT32 InputParameterBlockSize, + IN UINT8 *InputParameterBlock, + IN OUT UINT32 *OutputParameterBlockSize, + IN UINT8 *OutputParameterBlock + ) +{ + EFI_STATUS Status; + TPM_RSP_COMMAND_HDR *Header; + + if (mTcgProtocol == NULL) { + Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **) &mTcgProtocol); + if (EFI_ERROR (Status)) { + // + // TCG protocol is not installed. So, TPM12 is not present. + // + DEBUG ((EFI_D_ERROR, "Tpm12SubmitCommand - TCG - %r\n", Status)); + return EFI_NOT_FOUND; + } + } + // + // Assume when TCG Protocol is ready, RequestUseTpm already done. + // + Status = mTcgProtocol->PassThroughToTpm ( + mTcgProtocol, + InputParameterBlockSize, + InputParameterBlock, + *OutputParameterBlockSize, + OutputParameterBlock + ); + if (EFI_ERROR (Status)) { + return Status; + } + Header = (TPM_RSP_COMMAND_HDR *)OutputParameterBlock; + *OutputParameterBlockSize = SwapBytes32 (Header->paramSize); + + return EFI_SUCCESS; +} + +/** + This service requests use TPM12. + + @retval EFI_SUCCESS Get the control of TPM12 chip. + @retval EFI_NOT_FOUND TPM12 not found. + @retval EFI_DEVICE_ERROR Unexpected device behavior. +**/ +EFI_STATUS +EFIAPI +Tpm12RequestUseTpm ( + VOID + ) +{ + EFI_STATUS Status; + + if (mTcgProtocol == NULL) { + Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **) &mTcgProtocol); + if (EFI_ERROR (Status)) { + // + // TCG protocol is not installed. So, TPM12 is not present. + // + DEBUG ((EFI_D_ERROR, "Tpm12RequestUseTpm - TCG - %r\n", Status)); + return EFI_NOT_FOUND; + } + } + // + // Assume when TCG Protocol is ready, RequestUseTpm already done. + // + return EFI_SUCCESS; +} diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.inf b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.inf new file mode 100644 index 00000000..d00a92cd --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.inf @@ -0,0 +1,41 @@ +## @file +# Provides function interfaces to communicate with TPM 1.2 device +# +# This library helps to use TPM 1.2 device in library function API +# based on TCG protocol. +# +# Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR> +# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = Tpm12DeviceLibTcg + MODULE_UNI_FILE = Tpm12DeviceLibTcg.uni + FILE_GUID = 4D8B77D9-E923-48f8-B070-4053D78B7E56 + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = Tpm12DeviceLib|DXE_DRIVER DXE_RUNTIME_DRIVER UEFI_APPLICATION UEFI_DRIVER + +# +# The following information is for reference only and not required by the build tools. +# +# VALID_ARCHITECTURES = IA32 X64 +# + +[Sources] + Tpm12DeviceLibTcg.c + +[Packages] + MdePkg/MdePkg.dec + SecurityPkg/SecurityPkg.dec + +[LibraryClasses] + BaseLib + BaseMemoryLib + DebugLib + UefiBootServicesTableLib + +[Protocols] + gEfiTcgProtocolGuid ## CONSUMES diff --git a/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.uni b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.uni new file mode 100644 index 00000000..cc5fdfe1 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.uni @@ -0,0 +1,17 @@ +// /** @file
+// Provides function interfaces to communicate with TPM 1.2 device
+//
+// This library helps to use TPM 1.2 device in library function API
+// based on TCG 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 1.2 device"
+
+#string STR_MODULE_DESCRIPTION #language en-US "This library helps to use TPM 1.2 device in library function API based on TCG protocol."
+
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