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authorqianouyang <qianouyang@6f19259b-4bc3-4df7-8a09-765794883524>2011-10-28 03:46:20 +0000
committerqianouyang <qianouyang@6f19259b-4bc3-4df7-8a09-765794883524>2011-10-28 03:46:20 +0000
commitbeda2356f5128efa4461046f882b6516ece6afc7 (patch)
tree510623dada789aa470470589412c3c59eb4d4d92 /SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c
parent23491d5cc2c8e732c779f7e30db12a62a2a816c3 (diff)
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edk2-beda2356f5128efa4461046f882b6516ece6afc7.tar.bz2
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Enable/Disable Secured Boot by 'Secure Boot Configuration' Page which is under Setup browser.
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
Diffstat (limited to 'SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c')
-rw-r--r--SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c
new file mode 100644
index 0000000000..1d6c4ac6e8
--- /dev/null
+++ b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDriver.c
@@ -0,0 +1,133 @@
+/** @file
+ The module entry point for SecureBoot configuration module.
+
+Copyright (c) 2011, 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;
+}