diff options
Diffstat (limited to 'SecurityPkg/Library/SmmTcgPhysicalPresenceStorageLib/SmmTcgPhysicalPresenceStorageLib.c')
| -rw-r--r-- | SecurityPkg/Library/SmmTcgPhysicalPresenceStorageLib/SmmTcgPhysicalPresenceStorageLib.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/SecurityPkg/Library/SmmTcgPhysicalPresenceStorageLib/SmmTcgPhysicalPresenceStorageLib.c b/SecurityPkg/Library/SmmTcgPhysicalPresenceStorageLib/SmmTcgPhysicalPresenceStorageLib.c new file mode 100644 index 0000000000..fb4622eb6a --- /dev/null +++ b/SecurityPkg/Library/SmmTcgPhysicalPresenceStorageLib/SmmTcgPhysicalPresenceStorageLib.c @@ -0,0 +1,181 @@ +/** @file
+ Tcg PP storage library instance that does support any storage specific PPI.
+
+Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+#include <PiDxe.h>
+
+#include <Guid/TcgPhysicalPresenceStorageData.h>
+#include <IndustryStandard/TcgPhysicalPresence.h>
+
+#include <Protocol/SmmVariable.h>
+
+
+
+#include <Library/TcgPhysicalPresenceStorageLib.h>
+#include <Library/DebugLib.h>
+#include <Library/SmmServicesTableLib.h>
+
+
+EFI_SMM_VARIABLE_PROTOCOL *mTcg2PpStorageSmmVariable;
+
+/**
+ The handler for TPM physical presence function:
+ Submit TPM Operation Request to Pre-OS Environment and
+ Submit TPM Operation Request to Pre-OS Environment 2.
+
+ Caution: This function may receive untrusted input.
+
+ @param[in] OperationRequest TPM physical presence operation request.
+ @param[in] RequestParameter TPM physical presence operation request parameter.
+
+ @return Return Code for Submit TPM Operation Request to Pre-OS Environment and
+ Submit TPM Operation Request to Pre-OS Environment 2.
+**/
+UINT32
+EFIAPI
+TcgPhysicalPresenceStorageLibSubmitRequestToPreOSFunction (
+ IN UINT32 OperationRequest,
+ IN UINT32 RequestParameter
+ )
+{
+ ASSERT (FALSE);
+
+ return TCG_PP_RETURN_TPM_OPERATION_RESPONSE_SUCCESS;
+}
+
+/**
+ The handler for TPM physical presence function:
+ Return TPM Operation Response to OS Environment.
+
+ @param[out] MostRecentRequest Most recent operation request.
+ @param[out] Response Response to the most recent operation request.
+
+ @return Return Code for Return TPM Operation Response to OS Environment.
+**/
+UINT32
+EFIAPI
+TcgPhysicalPresenceStorageLibReturnOperationResponseToOsFunction (
+ OUT UINT32 *MostRecentRequest,
+ OUT UINT32 *Response
+ )
+{
+ ASSERT (FALSE);
+
+ return TCG_PP_RETURN_TPM_OPERATION_RESPONSE_SUCCESS;
+}
+
+/**
+ Check if the pending TPM request needs user input to confirm.
+
+ The TPM request may come from OS. This API will check if TPM request exists and need user
+ input to confirmation.
+
+ @retval TRUE TPM needs input to confirm user physical presence.
+ @retval FALSE TPM doesn't need input to confirm user physical presence.
+
+**/
+BOOLEAN
+EFIAPI
+TcgPhysicalPresenceStorageLibNeedUserConfirm(
+ VOID
+ )
+{
+ ASSERT (FALSE);
+
+ return FALSE;
+}
+
+/**
+ Check and execute the pending TPM request.
+
+ The TPM request may come from OS or BIOS. This API will display request information and wait
+ for user confirmation if TPM request exists. The TPM request will be sent to TPM device after
+ the TPM request is confirmed, and one or more reset may be required to make TPM request to
+ take effect.
+
+ This API should be invoked after console in and console out are all ready as they are required
+ to display request information and get user input to confirm the request.
+
+ @param[in] PlatformAuth platform auth value. NULL means no platform auth change.
+**/
+VOID
+EFIAPI
+TcgPhysicalPresenceStorageLibProcessRequest (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+/**
+ The handler for TPM physical presence function:
+ Return TPM Operation flag variable.
+
+ @return Return Code for Return TPM Operation flag variable.
+**/
+UINT32
+EFIAPI
+TcgPhysicalPresenceStorageLibReturnStorageFlags (
+ VOID
+ )
+{
+ UINTN DataSize;
+ EFI_TCG_PHYSICAL_PRESENCE_STORAGE_FLAGS PpiFlags;
+ EFI_STATUS Status;
+
+ //
+ // Get the Physical Presence storage flags
+ //
+ DataSize = sizeof (EFI_TCG_PHYSICAL_PRESENCE_STORAGE_FLAGS);
+ Status = mTcg2PpStorageSmmVariable->SmmGetVariable (
+ TCG_PHYSICAL_PRESENCE_STORAGE_FLAGS_VARIABLE,
+ &gEfiTcgPhysicalPresenceStorageGuid,
+ NULL,
+ &DataSize,
+ &PpiFlags
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "[TPM2] Get PP storage flags failure! Status = %r\n", Status));
+ PpiFlags.PPFlags = TCG_BIOS_STORAGE_MANAGEMENT_FLAG_DEFAULT;
+ }
+
+ return PpiFlags.PPFlags;
+}
+
+/**
+
+ Install Boot Manager Menu driver.
+
+ @param ImageHandle The image handle.
+ @param SystemTable The system table.
+
+ @retval EFI_SUCEESS Install Boot manager menu success.
+ @retval Other Return error status.
+
+**/
+EFI_STATUS
+EFIAPI
+TcgPhysicalPresenceStorageLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Locate SmmVariableProtocol.
+ //
+ Status = gSmst->SmmLocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID**)&mTcg2PpStorageSmmVariable);
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
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