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SecurityPkg: Add SecureBootDefaultKeysDxe driver

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This driver initializes default Secure Boot keys and databases
based on keys embedded in flash.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Reviewed-by: Sunny Wang <sunny.wang@arm.com>
Reviewed-by: Pete Batard <pete@akeo.ie>
Tested-by: Pete Batard <pete@akeo.ie> # on Raspberry Pi 4
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
This commit is contained in:
Grzegorz Bernacki 2021-08-02 12:46:30 +02:00 committed by mergify[bot]
parent a97e9e327e
commit 94e065582b
3 changed files with 131 additions and 0 deletions
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69
SecurityPkg/VariableAuthenticated/SecureBootDefaultKeysDxe/SecureBootDefaultKeysDxe.c Normal file
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/** @file
This driver init default Secure Boot variables
Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2021, Semihalf All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Guid/AuthenticatedVariableFormat.h>
#include <Guid/ImageAuthentication.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/SecureBootVariableLib.h>
#include <Library/SecureBootVariableProvisionLib.h>
/**
The entry point for SecureBootDefaultKeys 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
SecureBootDefaultKeysEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = SecureBootInitPKDefault ();
if (EFI_ERROR (Status)) {
DEBUG((DEBUG_ERROR, "%a: Cannot initialize PKDefault: %r\n", __FUNCTION__, Status));
return Status;
}
Status = SecureBootInitKEKDefault ();
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: Cannot initialize KEKDefault: %r\n", __FUNCTION__, Status));
return Status;
}
Status = SecureBootInitDbDefault ();
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a: Cannot initialize dbDefault: %r\n", __FUNCTION__, Status));
return Status;
}
Status = SecureBootInitDbtDefault ();
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "%a: dbtDefault not initialized\n", __FUNCTION__));
}
Status = SecureBootInitDbxDefault ();
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "%a: dbxDefault not initialized\n", __FUNCTION__));
}
return Status;
}

46
SecurityPkg/VariableAuthenticated/SecureBootDefaultKeysDxe/SecureBootDefaultKeysDxe.inf Normal file
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## @file
# Initializes Secure Boot default keys
#
# Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
# Copyright (c) 2021, Semihalf All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = SecureBootDefaultKeysDxe
FILE_GUID = C937FCB7-25AC-4376-89A2-4EA8B317DE83
MODULE_TYPE = DXE_DRIVER
ENTRY_POINT = SecureBootDefaultKeysEntryPoint
#
# VALID_ARCHITECTURES = IA32 X64 AARCH64
#
[Sources]
SecureBootDefaultKeysDxe.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
SecurityPkg/SecurityPkg.dec
[LibraryClasses]
BaseLib
BaseMemoryLib
MemoryAllocationLib
UefiDriverEntryPoint
DebugLib
SecureBootVariableLib
SecureBootVariableProvisionLib
[Guids]
## SOMETIMES_PRODUCES ## Variable:L"PKDefault"
## SOMETIMES_PRODUCES ## Variable:L"KEKDefault"
## SOMETIMES_PRODUCES ## Variable:L"dbDefault"
## SOMETIMES_PRODUCES ## Variable:L"dbtDefault"
## SOMETIMES_PRODUCES ## Variable:L"dbxDefault"
gEfiGlobalVariableGuid
[Depex]
gEfiVariableArchProtocolGuid AND
gEfiVariableWriteArchProtocolGuid

16
SecurityPkg/VariableAuthenticated/SecureBootDefaultKeysDxe/SecureBootDefaultKeysDxe.uni Normal file
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// /** @file
// Provides the capability to intialize Secure Boot default variables
//
// Module which initializes Secure boot default variables.
//
// Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
// Copyright (c) 2021, Semihalf All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
// **/
#string STR_MODULE_ABSTRACT #language en-US "Module which initializes Secure boot default variables"
#string STR_MODULE_DESCRIPTION #language en-US "This module reads embedded keys and initializes Secure Boot default variables."