/** @file | |
The module entry point for SecureBoot configuration module. | |
Copyright (c) 2011 - 2018, 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 "SecureBootConfigImpl.h" | |
/** | |
The entry point for SecureBoot configuration driver. | |
@param[in] ImageHandle The image handle of the driver. | |
@param[in] SystemTable The system table. | |
@retval EFI_ALREADY_STARTED The driver already exists in system. | |
@retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources. | |
@retval EFI_SUCCES All the related protocols are installed on the driver. | |
@retval Others Fail to get the SecureBootEnable variable. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
SecureBootConfigDriverEntryPoint ( | |
IN EFI_HANDLE ImageHandle, | |
IN EFI_SYSTEM_TABLE *SystemTable | |
) | |
{ | |
EFI_STATUS Status; | |
SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData; | |
// | |
// If already started, return. | |
// | |
Status = gBS->OpenProtocol ( | |
ImageHandle, | |
&gEfiCallerIdGuid, | |
NULL, | |
ImageHandle, | |
ImageHandle, | |
EFI_OPEN_PROTOCOL_TEST_PROTOCOL | |
); | |
if (!EFI_ERROR (Status)) { | |
return EFI_ALREADY_STARTED; | |
} | |
// | |
// Create a private data structure. | |
// | |
PrivateData = AllocateCopyPool (sizeof (SECUREBOOT_CONFIG_PRIVATE_DATA), &mSecureBootConfigPrivateDateTemplate); | |
if (PrivateData == NULL) { | |
return EFI_OUT_OF_RESOURCES; | |
} | |
// | |
// Install SecureBoot configuration form | |
// | |
Status = InstallSecureBootConfigForm (PrivateData); | |
if (EFI_ERROR (Status)) { | |
goto ErrorExit; | |
} | |
// | |
// Install private GUID. | |
// | |
Status = gBS->InstallMultipleProtocolInterfaces ( | |
&ImageHandle, | |
&gEfiCallerIdGuid, | |
PrivateData, | |
NULL | |
); | |
if (EFI_ERROR (Status)) { | |
goto ErrorExit; | |
} | |
return EFI_SUCCESS; | |
ErrorExit: | |
if (PrivateData != NULL) { | |
UninstallSecureBootConfigForm (PrivateData); | |
} | |
return Status; | |
} | |
/** | |
Unload the SecureBoot configuration form. | |
@param[in] ImageHandle The driver's image handle. | |
@retval EFI_SUCCESS The SecureBoot configuration form is unloaded. | |
@retval Others Failed to unload the form. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
SecureBootConfigDriverUnload ( | |
IN EFI_HANDLE ImageHandle | |
) | |
{ | |
EFI_STATUS Status; | |
SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData; | |
Status = gBS->HandleProtocol ( | |
ImageHandle, | |
&gEfiCallerIdGuid, | |
(VOID **) &PrivateData | |
); | |
if (EFI_ERROR (Status)) { | |
return Status; | |
} | |
ASSERT (PrivateData->Signature == SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE); | |
gBS->UninstallMultipleProtocolInterfaces ( | |
&ImageHandle, | |
&gEfiCallerIdGuid, | |
PrivateData, | |
NULL | |
); | |
UninstallSecureBootConfigForm (PrivateData); | |
return EFI_SUCCESS; | |
} |