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/** @file
The module entry point for SecureBoot configuration module.
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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_SUCCESS 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;
}
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