beda2356f5
Signed-off-by: qianouyang Reviewed-by: gdong1 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12586 6f19259b-4bc3-4df7-8a09-765794883524
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/** @file
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The module entry point for SecureBoot configuration module.
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Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "SecureBootConfigImpl.h"
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/**
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The entry point for SecureBoot configuration driver.
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@param[in] ImageHandle The image handle of the driver.
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@param[in] SystemTable The system table.
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@retval EFI_ALREADY_STARTED The driver already exists in system.
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@retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources.
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@retval EFI_SUCCES All the related protocols are installed on the driver.
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@retval Others Fail to get the SecureBootEnable variable.
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**/
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EFI_STATUS
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EFIAPI
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SecureBootConfigDriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData;
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//
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// If already started, return.
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//
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Status = gBS->OpenProtocol (
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ImageHandle,
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&gEfiCallerIdGuid,
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NULL,
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ImageHandle,
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ImageHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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//
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// Create a private data structure.
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//
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PrivateData = AllocateCopyPool (sizeof (SECUREBOOT_CONFIG_PRIVATE_DATA), &mSecureBootConfigPrivateDateTemplate);
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if (PrivateData == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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//
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// Install SecureBoot configuration form
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//
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Status = InstallSecureBootConfigForm (PrivateData);
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if (EFI_ERROR (Status)) {
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goto ErrorExit;
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}
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//
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// Install private GUID.
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&ImageHandle,
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&gEfiCallerIdGuid,
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PrivateData,
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NULL
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);
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if (EFI_ERROR (Status)) {
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goto ErrorExit;
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}
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return EFI_SUCCESS;
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ErrorExit:
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if (PrivateData != NULL) {
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UninstallSecureBootConfigForm (PrivateData);
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}
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return Status;
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}
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/**
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Unload the SecureBoot configuration form.
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@param[in] ImageHandle The driver's image handle.
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@retval EFI_SUCCESS The SecureBoot configuration form is unloaded.
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@retval Others Failed to unload the form.
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**/
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EFI_STATUS
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EFIAPI
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SecureBootConfigDriverUnload (
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IN EFI_HANDLE ImageHandle
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)
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{
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EFI_STATUS Status;
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SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData;
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Status = gBS->HandleProtocol (
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ImageHandle,
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&gEfiCallerIdGuid,
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(VOID **) &PrivateData
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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ASSERT (PrivateData->Signature == SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE);
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gBS->UninstallMultipleProtocolInterfaces (
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&ImageHandle,
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&gEfiCallerIdGuid,
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PrivateData,
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NULL
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);
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UninstallSecureBootConfigForm (PrivateData);
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return EFI_SUCCESS;
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}
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