c411b485b6
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the SecurityPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/** @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 ((DEBUG_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 ((DEBUG_ERROR, "Tpm12RequestUseTpm - TCG - %r\n", Status));
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Assume when TCG Protocol is ready, RequestUseTpm already done.
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|