mirror of https://github.com/acidanthera/audk.git
MdePkg/MdeModulePkg/SecurityPkg Variable: Forbid creation of non-spec variables in EFI_GLOBAL_VARIABLE namespace.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14560 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
parent
99736b33a3
commit
6675a21f14
|
@ -44,6 +44,51 @@ BOOLEAN mEndOfDxe = FALSE;
|
|||
///
|
||||
BOOLEAN mEnableLocking = TRUE;
|
||||
|
||||
//
|
||||
// To prevent name collisions with possible future globally defined variables,
|
||||
// other internal firmware data variables that are not defined here must be
|
||||
// saved with a unique VendorGuid other than EFI_GLOBAL_VARIABLE or
|
||||
// any other GUID defined by the UEFI Specification. Implementations must
|
||||
// only permit the creation of variables with a UEFI Specification-defined
|
||||
// VendorGuid when these variables are documented in the UEFI Specification.
|
||||
//
|
||||
GLOBAL_VARIABLE_ENTRY mGlobalVariableList[] = {
|
||||
{EFI_LANG_CODES_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_LANG_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_TIME_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_PLATFORM_LANG_CODES_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_PLATFORM_LANG_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_IN_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_ERR_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_IN_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_CON_OUT_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_ERR_OUT_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_BOOT_ORDER_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_BOOT_NEXT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_BOOT_CURRENT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DRIVER_ORDER_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_SETUP_MODE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_KEY_EXCHANGE_KEY_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT_AT},
|
||||
{EFI_PLATFORM_KEY_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT_AT},
|
||||
{EFI_SIGNATURE_SUPPORT_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_SECURE_BOOT_MODE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_KEK_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_PK_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DB_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DBX_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DBT_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_OS_INDICATIONS_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_VENDOR_KEYS_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
};
|
||||
GLOBAL_VARIABLE_ENTRY mGlobalVariableList2[] = {
|
||||
{L"Boot####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{L"Driver####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{L"Key####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
};
|
||||
|
||||
/**
|
||||
Routine used to track statistical information about variable usage.
|
||||
|
@ -1236,7 +1281,7 @@ AutoUpdateLangVariable (
|
|||
|
||||
SetLanguageCodes = FALSE;
|
||||
|
||||
if (StrCmp (VariableName, L"PlatformLangCodes") == 0) {
|
||||
if (StrCmp (VariableName, EFI_PLATFORM_LANG_CODES_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// PlatformLangCodes is a volatile variable, so it can not be updated at runtime.
|
||||
//
|
||||
|
@ -1266,7 +1311,7 @@ AutoUpdateLangVariable (
|
|||
mVariableModuleGlobal->PlatformLang = AllocateRuntimePool (DataSize);
|
||||
ASSERT (mVariableModuleGlobal->PlatformLang != NULL);
|
||||
|
||||
} else if (StrCmp (VariableName, L"LangCodes") == 0) {
|
||||
} else if (StrCmp (VariableName, EFI_LANG_CODES_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// LangCodes is a volatile variable, so it can not be updated at runtime.
|
||||
//
|
||||
|
@ -1294,21 +1339,21 @@ AutoUpdateLangVariable (
|
|||
// Update Lang if PlatformLang is already set
|
||||
// Update PlatformLang if Lang is already set
|
||||
//
|
||||
Status = FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
Status = FindVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
//
|
||||
// Update Lang
|
||||
//
|
||||
VariableName = L"PlatformLang";
|
||||
VariableName = EFI_PLATFORM_LANG_VARIABLE_NAME;
|
||||
Data = GetVariableDataPtr (Variable.CurrPtr);
|
||||
DataSize = Variable.CurrPtr->DataSize;
|
||||
} else {
|
||||
Status = FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
Status = FindVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
//
|
||||
// Update PlatformLang
|
||||
//
|
||||
VariableName = L"Lang";
|
||||
VariableName = EFI_LANG_VARIABLE_NAME;
|
||||
Data = GetVariableDataPtr (Variable.CurrPtr);
|
||||
DataSize = Variable.CurrPtr->DataSize;
|
||||
} else {
|
||||
|
@ -1325,7 +1370,7 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
|
||||
|
||||
if (StrCmp (VariableName, L"PlatformLang") == 0) {
|
||||
if (StrCmp (VariableName, EFI_PLATFORM_LANG_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// Update Lang when PlatformLangCodes/LangCodes were set.
|
||||
//
|
||||
|
@ -1348,9 +1393,9 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
// Successfully convert PlatformLang to Lang, and set the BestLang value into Lang variable simultaneously.
|
||||
//
|
||||
FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
FindVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
|
||||
Status = UpdateVariable (L"Lang", &gEfiGlobalVariableGuid, BestLang,
|
||||
Status = UpdateVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, BestLang,
|
||||
ISO_639_2_ENTRY_SIZE + 1, Attributes, &Variable);
|
||||
|
||||
DEBUG ((EFI_D_INFO, "Variable Driver Auto Update PlatformLang, PlatformLang:%a, Lang:%a\n", BestPlatformLang, BestLang));
|
||||
|
@ -1359,7 +1404,7 @@ AutoUpdateLangVariable (
|
|||
}
|
||||
}
|
||||
|
||||
} else if (StrCmp (VariableName, L"Lang") == 0) {
|
||||
} else if (StrCmp (VariableName, EFI_LANG_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// Update PlatformLang when PlatformLangCodes/LangCodes were set.
|
||||
//
|
||||
|
@ -1382,9 +1427,9 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
// Successfully convert Lang to PlatformLang, and set the BestPlatformLang value into PlatformLang variable simultaneously.
|
||||
//
|
||||
FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
FindVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
|
||||
Status = UpdateVariable (L"PlatformLang", &gEfiGlobalVariableGuid, BestPlatformLang,
|
||||
Status = UpdateVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, BestPlatformLang,
|
||||
AsciiStrSize (BestPlatformLang), Attributes, &Variable);
|
||||
|
||||
DEBUG ((EFI_D_INFO, "Variable Driver Auto Update Lang, Lang:%a, PlatformLang:%a\n", BestLang, BestPlatformLang));
|
||||
|
@ -1934,6 +1979,63 @@ IsHwErrRecVariable (
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
This code checks if variable guid is global variable guid first.
|
||||
If yes, further check if variable name is in mGlobalVariableList or mGlobalVariableList2 and attributes matched.
|
||||
|
||||
@param[in] VariableName Pointer to variable name.
|
||||
@param[in] VendorGuid Variable Vendor Guid.
|
||||
@param[in] Attributes Attributes of the variable.
|
||||
|
||||
@retval EFI_SUCCESS Variable is not global variable, or Variable is global variable, variable name is in the lists and attributes matched.
|
||||
@retval EFI_INVALID_PARAMETER Variable is global variable, but variable name is not in the lists or attributes unmatched.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
CheckEfiGlobalVariable (
|
||||
IN CHAR16 *VariableName,
|
||||
IN EFI_GUID *VendorGuid,
|
||||
IN UINT32 Attributes
|
||||
)
|
||||
{
|
||||
UINTN Index;
|
||||
UINTN NameLength;
|
||||
|
||||
if (CompareGuid (VendorGuid, &gEfiGlobalVariableGuid)){
|
||||
//
|
||||
// Try list 1, exactly match.
|
||||
//
|
||||
for (Index = 0; Index < sizeof (mGlobalVariableList)/sizeof (mGlobalVariableList[0]); Index++) {
|
||||
if ((StrCmp (mGlobalVariableList[Index].Name, VariableName) == 0) &&
|
||||
(Attributes == 0 || Attributes == mGlobalVariableList[Index].Attributes)) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Try list 2.
|
||||
//
|
||||
NameLength = StrLen (VariableName) - 4;
|
||||
for (Index = 0; Index < sizeof (mGlobalVariableList2)/sizeof (mGlobalVariableList2[0]); Index++) {
|
||||
if ((StrLen (VariableName) == StrLen (mGlobalVariableList2[Index].Name)) &&
|
||||
(StrnCmp (mGlobalVariableList2[Index].Name, VariableName, NameLength) == 0) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 1]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 2]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 3]) &&
|
||||
(Attributes == 0 || Attributes == mGlobalVariableList2[Index].Attributes)) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
DEBUG ((EFI_D_INFO, "[Variable]: set global variable with invalid variable name or attributes - %g:%s:%x\n", VendorGuid, VariableName, Attributes));
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
Mark a variable that will become read-only after leaving the DXE phase of execution.
|
||||
|
||||
|
@ -2317,6 +2419,11 @@ VariableServiceSetVariable (
|
|||
}
|
||||
}
|
||||
|
||||
Status = CheckEfiGlobalVariable (VariableName, VendorGuid, Attributes);
|
||||
if (EFI_ERROR (Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
AcquireLockOnlyAtBootTime(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
|
||||
|
||||
//
|
||||
|
|
|
@ -42,7 +42,14 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|||
#include <Guid/FaultTolerantWrite.h>
|
||||
#include <Guid/HardwareErrorVariable.h>
|
||||
|
||||
#define VARIABLE_RECLAIM_THRESHOLD (1024)
|
||||
#define VARIABLE_ATTRIBUTE_BS_RT (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)
|
||||
#define VARIABLE_ATTRIBUTE_NV_BS_RT (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)
|
||||
#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
|
||||
|
||||
typedef struct {
|
||||
CHAR16 *Name;
|
||||
UINT32 Attributes;
|
||||
} GLOBAL_VARIABLE_ENTRY;
|
||||
|
||||
///
|
||||
/// The size of a 3 character ISO639 language code.
|
||||
|
|
|
@ -1,7 +1,7 @@
|
|||
/** @file
|
||||
GUID for EFI (NVRAM) Variables.
|
||||
|
||||
Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
|
||||
Copyright (c) 2006 - 2013, 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
|
||||
|
@ -24,4 +24,163 @@
|
|||
|
||||
extern EFI_GUID gEfiGlobalVariableGuid;
|
||||
|
||||
//
|
||||
// Follow UEFI 2.4 spec:
|
||||
// To prevent name collisions with possible future globally defined variables,
|
||||
// other internal firmware data variables that are not defined here must be
|
||||
// saved with a unique VendorGuid other than EFI_GLOBAL_VARIABLE or
|
||||
// any other GUID defined by the UEFI Specification. Implementations must
|
||||
// only permit the creation of variables with a UEFI Specification-defined
|
||||
// VendorGuid when these variables are documented in the UEFI Specification.
|
||||
//
|
||||
// Note: except the globally defined variables defined below, the spec also defines
|
||||
// L"Boot####" - A boot load option.
|
||||
// L"Driver####" - A driver load option.
|
||||
// L"Key####" - Describes hot key relationship with a Boot#### load option.
|
||||
// The attribute for them is NV+BS+RT, #### is a printed hex value, and no 0x or h
|
||||
// is included in the hex value. They can not be expressed as a #define like other globally
|
||||
// defined variables, it is because we can not list the Boot0000, Boot0001, etc one by one.
|
||||
//
|
||||
|
||||
///
|
||||
/// The language codes that the firmware supports. This value is deprecated.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_LANG_CODES_VARIABLE_NAME L"LangCodes"
|
||||
///
|
||||
/// The language code that the system is configured for. This value is deprecated.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_LANG_VARIABLE_NAME L"Lang"
|
||||
///
|
||||
/// The firmware's boot managers timeout, in seconds, before initiating the default boot selection.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_TIME_OUT_VARIABLE_NAME L"Timeout"
|
||||
///
|
||||
/// The language codes that the firmware supports.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_PLATFORM_LANG_CODES_VARIABLE_NAME L"PlatformLangCodes"
|
||||
///
|
||||
/// The language code that the system is configured for.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_PLATFORM_LANG_VARIABLE_NAME L"PlatformLang"
|
||||
///
|
||||
/// The device path of the default input/output/error output console.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_CON_IN_VARIABLE_NAME L"ConIn"
|
||||
#define EFI_CON_OUT_VARIABLE_NAME L"ConOut"
|
||||
#define EFI_ERR_OUT_VARIABLE_NAME L"ErrOut"
|
||||
///
|
||||
/// The device path of all possible input/output/error output devices.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_CON_IN_DEV_VARIABLE_NAME L"ConInDev"
|
||||
#define EFI_CON_OUT_DEV_VARIABLE_NAME L"ConOutDev"
|
||||
#define EFI_ERR_OUT_DEV_VARIABLE_NAME L"ErrOutDev"
|
||||
///
|
||||
/// The ordered boot option load list.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_BOOT_ORDER_VARIABLE_NAME L"BootOrder"
|
||||
///
|
||||
/// The boot option for the next boot only.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_BOOT_NEXT_VARIABLE_NAME L"BootNext"
|
||||
///
|
||||
/// The boot option that was selected for the current boot.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_BOOT_CURRENT_VARIABLE_NAME L"BootCurrent"
|
||||
///
|
||||
/// The types of boot options supported by the boot manager. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME L"BootOptionSupport"
|
||||
///
|
||||
/// The ordered driver load option list.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_DRIVER_ORDER_VARIABLE_NAME L"DriverOrder"
|
||||
///
|
||||
/// Identifies the level of hardware error record persistence
|
||||
/// support implemented by the platform. This variable is
|
||||
/// only modified by firmware and is read-only to the OS.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME L"HwErrRecSupport"
|
||||
///
|
||||
/// Whether the system is operating in setup mode (1) or not (0).
|
||||
/// All other values are reserved. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_SETUP_MODE_NAME L"SetupMode"
|
||||
///
|
||||
/// The Key Exchange Key Signature Database.
|
||||
/// Its attribute is NV+BS+RT+AT.
|
||||
///
|
||||
#define EFI_KEY_EXCHANGE_KEY_NAME L"KEK"
|
||||
///
|
||||
/// The public Platform Key.
|
||||
/// Its attribute is NV+BS+RT+AT.
|
||||
///
|
||||
#define EFI_PLATFORM_KEY_NAME L"PK"
|
||||
///
|
||||
/// Array of GUIDs representing the type of signatures supported
|
||||
/// by the platform firmware. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_SIGNATURE_SUPPORT_NAME L"SignatureSupport"
|
||||
///
|
||||
/// Whether the platform firmware is operating in Secure boot mode (1) or not (0).
|
||||
/// All other values are reserved. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_SECURE_BOOT_MODE_NAME L"SecureBoot"
|
||||
///
|
||||
/// The OEM's default Key Exchange Key Signature Database. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_KEK_DEFAULT_VARIABLE_NAME L"KEKDefault"
|
||||
///
|
||||
/// The OEM's default public Platform Key. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_PK_DEFAULT_VARIABLE_NAME L"PKDefault"
|
||||
///
|
||||
/// The OEM's default secure boot signature store. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_DB_DEFAULT_VARIABLE_NAME L"dbDefault"
|
||||
///
|
||||
/// The OEM's default secure boot blacklist signature store. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_DBX_DEFAULT_VARIABLE_NAME L"dbxDefault"
|
||||
///
|
||||
/// The OEM's default secure boot timestamp signature store. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_DBT_DEFAULT_VARIABLE_NAME L"dbtDefault"
|
||||
///
|
||||
/// Allows the firmware to indicate supported features and actions to the OS.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME L"OsIndicationsSupported"
|
||||
///
|
||||
/// Allows the OS to request the firmware to enable certain features and to take certain actions.
|
||||
/// Its attribute is NV+BS+RT.
|
||||
///
|
||||
#define EFI_OS_INDICATIONS_VARIABLE_NAME L"OsIndications"
|
||||
///
|
||||
/// Whether the system is configured to use only vendor provided
|
||||
/// keys or not. Should be treated as read-only.
|
||||
/// Its attribute is BS+RT.
|
||||
///
|
||||
#define EFI_VENDOR_KEYS_VARIABLE_NAME L"VendorKeys"
|
||||
|
||||
#endif
|
||||
|
|
|
@ -1,8 +1,7 @@
|
|||
/** @file
|
||||
Platform Key, Key Exchange Key, and Image signature database are defined
|
||||
for the signed image validation.
|
||||
Image signature database are defined for the signed image validation.
|
||||
|
||||
Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
|
||||
Copyright (c) 2009 - 2013, 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
|
||||
|
@ -35,35 +34,12 @@
|
|||
/// for the forbidden signature database.
|
||||
///
|
||||
#define EFI_IMAGE_SECURITY_DATABASE1 L"dbx"
|
||||
|
||||
#define SECURE_BOOT_MODE_ENABLE 1
|
||||
#define SECURE_BOOT_MODE_DISABLE 0
|
||||
#define SETUP_MODE 1
|
||||
#define USER_MODE 0
|
||||
///
|
||||
/// Globally "SetupMode" variable to specify whether the system is currently operating
|
||||
/// in setup mode (1) or not (0). All other values are reserved.
|
||||
///
|
||||
#define EFI_SETUP_MODE_NAME L"SetupMode"
|
||||
///
|
||||
/// Globally "PK" variable for the Platform Key Signature Database.
|
||||
///
|
||||
#define EFI_PLATFORM_KEY_NAME L"PK"
|
||||
///
|
||||
/// Globally "KEK" variable for the Key Exchange Key Signature Database.
|
||||
///
|
||||
#define EFI_KEY_EXCHANGE_KEY_NAME L"KEK"
|
||||
///
|
||||
/// Globally "SignatureSupport" variable returns an array of GUIDs,
|
||||
/// with each GUID representing a type of signature which the platform
|
||||
/// firmware supports for images and other data.
|
||||
///
|
||||
#define EFI_SIGNATURE_SUPPORT_NAME L"SignatureSupport"
|
||||
|
||||
///
|
||||
/// Globally "SecureBoot" variable to specify whether the platform firmware
|
||||
/// is operating in Secure boot mode (1) or not (0). All other values are reserved.
|
||||
///
|
||||
#define EFI_SECURE_BOOT_MODE_NAME L"SecureBoot"
|
||||
|
||||
//***********************************************************************
|
||||
// Signature Database
|
||||
|
|
|
@ -5,7 +5,7 @@
|
|||
If a code construct is defined in the UEFI 2.4 specification it must be included
|
||||
by this include file.
|
||||
|
||||
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
|
||||
Copyright (c) 2006 - 2013, 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 that accompanies this distribution.
|
||||
The full text of the license may be found at
|
||||
|
@ -668,7 +668,7 @@ EFI_STATUS
|
|||
|
||||
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
|
||||
defined by the Attributes.
|
||||
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied, or the
|
||||
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits, name, and GUID was supplied, or the
|
||||
DataSize exceeds the maximum allowed.
|
||||
@retval EFI_INVALID_PARAMETER VariableName is an empty string.
|
||||
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
|
||||
|
|
|
@ -58,6 +58,51 @@ BOOLEAN mEndOfDxe = FALSE;
|
|||
///
|
||||
BOOLEAN mEnableLocking = TRUE;
|
||||
|
||||
//
|
||||
// To prevent name collisions with possible future globally defined variables,
|
||||
// other internal firmware data variables that are not defined here must be
|
||||
// saved with a unique VendorGuid other than EFI_GLOBAL_VARIABLE or
|
||||
// any other GUID defined by the UEFI Specification. Implementations must
|
||||
// only permit the creation of variables with a UEFI Specification-defined
|
||||
// VendorGuid when these variables are documented in the UEFI Specification.
|
||||
//
|
||||
GLOBAL_VARIABLE_ENTRY mGlobalVariableList[] = {
|
||||
{EFI_LANG_CODES_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_LANG_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_TIME_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_PLATFORM_LANG_CODES_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_PLATFORM_LANG_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_IN_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_ERR_OUT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_CON_IN_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_CON_OUT_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_ERR_OUT_DEV_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_BOOT_ORDER_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_BOOT_NEXT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_BOOT_CURRENT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_BOOT_OPTION_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DRIVER_ORDER_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_HW_ERR_REC_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_SETUP_MODE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_KEY_EXCHANGE_KEY_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT_AT},
|
||||
{EFI_PLATFORM_KEY_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT_AT},
|
||||
{EFI_SIGNATURE_SUPPORT_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_SECURE_BOOT_MODE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_KEK_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_PK_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DB_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DBX_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_DBT_DEFAULT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_OS_INDICATIONS_SUPPORT_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
{EFI_OS_INDICATIONS_VARIABLE_NAME, VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{EFI_VENDOR_KEYS_VARIABLE_NAME, VARIABLE_ATTRIBUTE_BS_RT},
|
||||
};
|
||||
GLOBAL_VARIABLE_ENTRY mGlobalVariableList2[] = {
|
||||
{L"Boot####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{L"Driver####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
{L"Key####", VARIABLE_ATTRIBUTE_NV_BS_RT},
|
||||
};
|
||||
|
||||
/**
|
||||
Routine used to track statistical information about variable usage.
|
||||
|
@ -1473,7 +1518,7 @@ AutoUpdateLangVariable (
|
|||
|
||||
SetLanguageCodes = FALSE;
|
||||
|
||||
if (StrCmp (VariableName, L"PlatformLangCodes") == 0) {
|
||||
if (StrCmp (VariableName, EFI_PLATFORM_LANG_CODES_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// PlatformLangCodes is a volatile variable, so it can not be updated at runtime.
|
||||
//
|
||||
|
@ -1503,7 +1548,7 @@ AutoUpdateLangVariable (
|
|||
mVariableModuleGlobal->PlatformLang = AllocateRuntimePool (DataSize);
|
||||
ASSERT (mVariableModuleGlobal->PlatformLang != NULL);
|
||||
|
||||
} else if (StrCmp (VariableName, L"LangCodes") == 0) {
|
||||
} else if (StrCmp (VariableName, EFI_LANG_CODES_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// LangCodes is a volatile variable, so it can not be updated at runtime.
|
||||
//
|
||||
|
@ -1531,21 +1576,21 @@ AutoUpdateLangVariable (
|
|||
// Update Lang if PlatformLang is already set
|
||||
// Update PlatformLang if Lang is already set
|
||||
//
|
||||
Status = FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
Status = FindVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
//
|
||||
// Update Lang
|
||||
//
|
||||
VariableName = L"PlatformLang";
|
||||
VariableName = EFI_PLATFORM_LANG_VARIABLE_NAME;
|
||||
Data = GetVariableDataPtr (Variable.CurrPtr);
|
||||
DataSize = Variable.CurrPtr->DataSize;
|
||||
} else {
|
||||
Status = FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
Status = FindVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
//
|
||||
// Update PlatformLang
|
||||
//
|
||||
VariableName = L"Lang";
|
||||
VariableName = EFI_LANG_VARIABLE_NAME;
|
||||
Data = GetVariableDataPtr (Variable.CurrPtr);
|
||||
DataSize = Variable.CurrPtr->DataSize;
|
||||
} else {
|
||||
|
@ -1562,7 +1607,7 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
|
||||
|
||||
if (StrCmp (VariableName, L"PlatformLang") == 0) {
|
||||
if (StrCmp (VariableName, EFI_PLATFORM_LANG_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// Update Lang when PlatformLangCodes/LangCodes were set.
|
||||
//
|
||||
|
@ -1585,9 +1630,9 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
// Successfully convert PlatformLang to Lang, and set the BestLang value into Lang variable simultaneously.
|
||||
//
|
||||
FindVariable (L"Lang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
FindVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
|
||||
Status = UpdateVariable (L"Lang", &gEfiGlobalVariableGuid, BestLang,
|
||||
Status = UpdateVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, BestLang,
|
||||
ISO_639_2_ENTRY_SIZE + 1, Attributes, 0, 0, &Variable, NULL);
|
||||
|
||||
DEBUG ((EFI_D_INFO, "Variable Driver Auto Update PlatformLang, PlatformLang:%a, Lang:%a\n", BestPlatformLang, BestLang));
|
||||
|
@ -1596,7 +1641,7 @@ AutoUpdateLangVariable (
|
|||
}
|
||||
}
|
||||
|
||||
} else if (StrCmp (VariableName, L"Lang") == 0) {
|
||||
} else if (StrCmp (VariableName, EFI_LANG_VARIABLE_NAME) == 0) {
|
||||
//
|
||||
// Update PlatformLang when PlatformLangCodes/LangCodes were set.
|
||||
//
|
||||
|
@ -1619,9 +1664,9 @@ AutoUpdateLangVariable (
|
|||
//
|
||||
// Successfully convert Lang to PlatformLang, and set the BestPlatformLang value into PlatformLang variable simultaneously.
|
||||
//
|
||||
FindVariable (L"PlatformLang", &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
FindVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
|
||||
|
||||
Status = UpdateVariable (L"PlatformLang", &gEfiGlobalVariableGuid, BestPlatformLang,
|
||||
Status = UpdateVariable (EFI_PLATFORM_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, BestPlatformLang,
|
||||
AsciiStrSize (BestPlatformLang), Attributes, 0, 0, &Variable, NULL);
|
||||
|
||||
DEBUG ((EFI_D_INFO, "Variable Driver Auto Update Lang, Lang:%a, PlatformLang:%a\n", BestLang, BestPlatformLang));
|
||||
|
@ -2327,6 +2372,63 @@ IsHwErrRecVariable (
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
This code checks if variable guid is global variable guid first.
|
||||
If yes, further check if variable name is in mGlobalVariableList or mGlobalVariableList2 and attributes matched.
|
||||
|
||||
@param[in] VariableName Pointer to variable name.
|
||||
@param[in] VendorGuid Variable Vendor Guid.
|
||||
@param[in] Attributes Attributes of the variable.
|
||||
|
||||
@retval EFI_SUCCESS Variable is not global variable, or Variable is global variable, variable name is in the lists and attributes matched.
|
||||
@retval EFI_INVALID_PARAMETER Variable is global variable, but variable name is not in the lists or attributes unmatched.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
CheckEfiGlobalVariable (
|
||||
IN CHAR16 *VariableName,
|
||||
IN EFI_GUID *VendorGuid,
|
||||
IN UINT32 Attributes
|
||||
)
|
||||
{
|
||||
UINTN Index;
|
||||
UINTN NameLength;
|
||||
|
||||
if (CompareGuid (VendorGuid, &gEfiGlobalVariableGuid)){
|
||||
//
|
||||
// Try list 1, exactly match.
|
||||
//
|
||||
for (Index = 0; Index < sizeof (mGlobalVariableList)/sizeof (mGlobalVariableList[0]); Index++) {
|
||||
if ((StrCmp (mGlobalVariableList[Index].Name, VariableName) == 0) &&
|
||||
(Attributes == 0 || (Attributes & (~EFI_VARIABLE_APPEND_WRITE)) == mGlobalVariableList[Index].Attributes)) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Try list 2.
|
||||
//
|
||||
NameLength = StrLen (VariableName) - 4;
|
||||
for (Index = 0; Index < sizeof (mGlobalVariableList2)/sizeof (mGlobalVariableList2[0]); Index++) {
|
||||
if ((StrLen (VariableName) == StrLen (mGlobalVariableList2[Index].Name)) &&
|
||||
(StrnCmp (mGlobalVariableList2[Index].Name, VariableName, NameLength) == 0) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 1]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 2]) &&
|
||||
IsHexaDecimalDigitCharacter (VariableName[NameLength + 3]) &&
|
||||
(Attributes == 0 || (Attributes & (~EFI_VARIABLE_APPEND_WRITE)) == mGlobalVariableList2[Index].Attributes)) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
||||
DEBUG ((EFI_D_INFO, "[Variable]: set global variable with invalid variable name or attributes - %g:%s:%x\n", VendorGuid, VariableName, Attributes));
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
Mark a variable that will become read-only after leaving the DXE phase of execution.
|
||||
|
||||
|
@ -2787,6 +2889,11 @@ VariableServiceSetVariable (
|
|||
}
|
||||
}
|
||||
|
||||
Status = CheckEfiGlobalVariable (VariableName, VendorGuid, Attributes);
|
||||
if (EFI_ERROR (Status)) {
|
||||
return Status;
|
||||
}
|
||||
|
||||
AcquireLockOnlyAtBootTime(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock);
|
||||
|
||||
//
|
||||
|
|
|
@ -44,7 +44,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|||
#include <Guid/FaultTolerantWrite.h>
|
||||
#include <Guid/HardwareErrorVariable.h>
|
||||
|
||||
#define VARIABLE_RECLAIM_THRESHOLD (1024)
|
||||
#define EFI_VARIABLE_ATTRIBUTES_MASK (EFI_VARIABLE_NON_VOLATILE | \
|
||||
EFI_VARIABLE_BOOTSERVICE_ACCESS | \
|
||||
EFI_VARIABLE_RUNTIME_ACCESS | \
|
||||
|
@ -53,6 +52,15 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|||
EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
|
||||
EFI_VARIABLE_APPEND_WRITE)
|
||||
|
||||
#define VARIABLE_ATTRIBUTE_BS_RT (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)
|
||||
#define VARIABLE_ATTRIBUTE_NV_BS_RT (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)
|
||||
#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
|
||||
|
||||
typedef struct {
|
||||
CHAR16 *Name;
|
||||
UINT32 Attributes;
|
||||
} GLOBAL_VARIABLE_ENTRY;
|
||||
|
||||
///
|
||||
/// The size of a 3 character ISO639 language code.
|
||||
///
|
||||
|
|
Loading…
Reference in New Issue