Tpm2DeviceLibRouterDxe.c

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#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/Tpm2DeviceLib.h>
 
TPM2_DEVICE_INTERFACE  mInternalTpm2DeviceInterface;
 
EFI_STATUS
EFIAPI
Tpm2SubmitCommand (
  IN UINT32      InputParameterBlockSize,
  IN UINT8       *InputParameterBlock,
  IN OUT UINT32  *OutputParameterBlockSize,
  IN UINT8       *OutputParameterBlock
  )
{
  if (mInternalTpm2DeviceInterface.Tpm2SubmitCommand == NULL) {
    return EFI_UNSUPPORTED;
  }
 
  return mInternalTpm2DeviceInterface.Tpm2SubmitCommand (
                                        InputParameterBlockSize,
                                        InputParameterBlock,
                                        OutputParameterBlockSize,
                                        OutputParameterBlock
                                        );
}
 
EFI_STATUS
EFIAPI
Tpm2RequestUseTpm (
  VOID
  )
{
  if (mInternalTpm2DeviceInterface.Tpm2RequestUseTpm == NULL) {
    return EFI_UNSUPPORTED;
  }
 
  return mInternalTpm2DeviceInterface.Tpm2RequestUseTpm ();
}
 
EFI_STATUS
EFIAPI
Tpm2RegisterTpm2DeviceLib (
  IN TPM2_DEVICE_INTERFACE  *Tpm2Device
  )
{
  if (!CompareGuid (PcdGetPtr (PcdTpmInstanceGuid), &Tpm2Device->ProviderGuid)) {
    DEBUG ((DEBUG_WARN, "WARNING: Tpm2RegisterTpm2DeviceLib - does not support %g registration\n", &Tpm2Device->ProviderGuid));
    return EFI_UNSUPPORTED;
  }
 
  CopyMem (&mInternalTpm2DeviceInterface, Tpm2Device, sizeof (mInternalTpm2DeviceInterface));
  return EFI_SUCCESS;
}