audk/MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf

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## @file
# Provides variable service.
#
# This module installs variable arch protocol and variable write arch protocol to provide
# variable services: SetVariable, GetVariable, GetNextVariableName and QueryVariableInfo.
#
# Caution: This module requires additional review when modified.
# This driver will have external input - variable data.
# This external input must be validated carefully to avoid security issues such as
# buffer overflow or integer overflow.
#
# Copyright (c) 2006 - 2017, 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.
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = VariableRuntimeDxe
MODULE_UNI_FILE = VariableRuntimeDxe.uni
FILE_GUID = CBD2E4D5-7068-4FF5-B462-9822B4AD8D60
MODULE_TYPE = DXE_RUNTIME_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = VariableServiceInitialize
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 EBC
#
# VIRTUAL_ADDRESS_MAP_CALLBACK = VariableClassAddressChangeEvent
#
[Sources]
Reclaim.c
Variable.c
VariableDxe.c
Variable.h
MdeModulePkg/Variable/RuntimeDxe: move SecureBootHook() decl to new header If the platform supports SMM, a gRT->SetVariable() call at boot time results in the following call tree to SecureBootHook(): RuntimeServiceSetVariable() [VariableSmmRuntimeDxe.c, unprivileged] SmmVariableHandler() [VariableSmm.c, PRIVILEGED] VariableServiceSetVariable() [Variable.c, PRIVILEGED] SecureBootHook() [VariableSmm.c, PRIVILEGED] // // do nothing // SecureBootHook() [Measurement.c, unprivileged] // // measure variable if it // is related to SB policy // And if the platform does not support SMM: VariableServiceSetVariable() [Variable.c, unprivileged] SecureBootHook() [Measurement.c, unprivileged] // // measure variable if it // is related to SB policy // In other words, the measurement always happens outside of SMM. Because there are two implementations of the SecureBootHook() API, one that is called from SMM and does nothing, and another that is called outside of SMM and measures variables, the function declaration should be in a header file. This way the compiler can enforce that the function declaration and all function definitions match. "Variable.h" is used for "including common header files, defining internal structures and functions used by Variable modules". Technically, we could declare SecureBootHook() in "Variable.h". However, "Measurement.c" and "VariableSmmRuntimeDxe.c" themselves do not include "Variable.h", and that is likely intentional -- "Variable.h" exposes so much of the privileged variable implementation that it is likely excluded from these C source files on purpose. Therefore introduce a new header file called "PrivilegePolymorphic.h". "Variable.h" includes this header (so that all C source files that have been allowed to see the variable internals learn about the new SecureBootHook() declaration immediately). In "Measurement.c" and "VariableSmmRuntimeDxe.c", include *only* the new header. This change cleans up commit fa0737a839d0 ("MdeModulePkg Variable: Merge from Auth Variable driver in SecurityPkg", 2015-07-01). Cc: Eric Dong <eric.dong@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Ladi Prosek <lprosek@redhat.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Tested-by: Ladi Prosek <lprosek@redhat.com>
2017-09-30 13:40:32 +02:00
PrivilegePolymorphic.h
Measurement.c
TcgMorLockDxe.c
VarCheck.c
VariableExLib.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
MemoryAllocationLib
BaseLib
SynchronizationLib
UefiLib
UefiBootServicesTableLib
BaseMemoryLib
DebugLib
UefiRuntimeLib
DxeServicesTableLib
UefiDriverEntryPoint
PcdLib
HobLib
TpmMeasurementLib
AuthVariableLib
VarCheckLib
[Protocols]
gEfiFirmwareVolumeBlockProtocolGuid ## CONSUMES
## CONSUMES
## NOTIFY
gEfiFaultTolerantWriteProtocolGuid
gEfiVariableWriteArchProtocolGuid ## PRODUCES
gEfiVariableArchProtocolGuid ## PRODUCES
gEdkiiVariableLockProtocolGuid ## PRODUCES
gEdkiiVarCheckProtocolGuid ## PRODUCES
[Guids]
## SOMETIMES_CONSUMES ## GUID # Signature of Variable store header
## SOMETIMES_PRODUCES ## GUID # Signature of Variable store header
## SOMETIMES_CONSUMES ## HOB
## SOMETIMES_PRODUCES ## SystemTable
gEfiAuthenticatedVariableGuid
## SOMETIMES_CONSUMES ## GUID # Signature of Variable store header
## SOMETIMES_PRODUCES ## GUID # Signature of Variable store header
## SOMETIMES_CONSUMES ## HOB
## SOMETIMES_PRODUCES ## SystemTable
gEfiVariableGuid
## SOMETIMES_CONSUMES ## Variable:L"PlatformLang"
## SOMETIMES_PRODUCES ## Variable:L"PlatformLang"
## SOMETIMES_CONSUMES ## Variable:L"Lang"
## SOMETIMES_PRODUCES ## Variable:L"Lang"
## SOMETIMES_CONSUMES ## Variable:L"PK"
## SOMETIMES_CONSUMES ## Variable:L"KEK"
## SOMETIMES_CONSUMES ## Variable:L"SecureBoot"
gEfiGlobalVariableGuid
gEfiMemoryOverwriteControlDataGuid ## SOMETIMES_CONSUMES ## Variable:L"MemoryOverwriteRequestControl"
gEfiMemoryOverwriteRequestControlLockGuid ## SOMETIMES_PRODUCES ## Variable:L"MemoryOverwriteRequestControlLock"
gEfiEventVirtualAddressChangeGuid ## CONSUMES ## Event
gEfiSystemNvDataFvGuid ## CONSUMES ## GUID
gEfiEndOfDxeEventGroupGuid ## CONSUMES ## Event
gEdkiiFaultTolerantWriteGuid ## SOMETIMES_CONSUMES ## HOB
## SOMETIMES_CONSUMES ## Variable:L"VarErrorFlag"
## SOMETIMES_PRODUCES ## Variable:L"VarErrorFlag"
gEdkiiVarErrorFlagGuid
## SOMETIMES_CONSUMES ## Variable:L"db"
## SOMETIMES_CONSUMES ## Variable:L"dbx"
## SOMETIMES_CONSUMES ## Variable:L"dbt"
gEfiImageSecurityDatabaseGuid
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxUserNvVariableSpaceSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdBoottimeReservedNvVariableSpaceSize ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdReclaimVariableSpaceAtEndOfDxe ## CONSUMES
[FeaturePcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics ## CONSUMES # statistic the information of variable.
gEfiMdePkgTokenSpaceGuid.PcdUefiVariableDefaultLangDeprecate ## CONSUMES # Auto update PlatformLang/Lang
[Depex]
TRUE
[UserExtensions.TianoCore."ExtraFiles"]
VariableRuntimeDxeExtra.uni