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1. Reset system when user changes secure boot state in secure boot configuration form.

Browse Source 
2. Update the method to detect secure boot state in DxeImageVerificationLib and secure boot configuration driver.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Dong Guo <guo.dong@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13505 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
sfu5 2012-07-05 08:08:12 +00:00
parent b37aa2c645
commit 8f8ca22e59
6 changed files with 29 additions and 46 deletions
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4
SecurityPkg/Include/Guid/AuthenticatedVariableFormat.h
View File

@ -29,7 +29,9 @@ extern EFI_GUID gEfiAuthenticatedVariableGuid;
extern EFI_GUID gEfiSecureBootEnableDisableGuid;
///
/// "SecureBootEnable" variable for the Secure boot feature enable/disable.
/// "SecureBootEnable" variable for the Secure Boot feature enable/disable.
/// This variable is used for allowing a physically present user to disable
/// Secure Boot via firmware setup without the possession of PKpriv.
///
#define EFI_SECURE_BOOT_ENABLE_NAME L"SecureBootEnable"
#define SECURE_BOOT_ENABLE 1

38
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c
View File

@ -1254,14 +1254,13 @@ DxeImageVerificationHandler (
UINT16 Magic;
EFI_IMAGE_DOS_HEADER *DosHdr;
EFI_STATUS VerifyStatus;
UINT8 *SetupMode;
EFI_SIGNATURE_LIST *SignatureList;
UINTN SignatureListSize;
EFI_SIGNATURE_DATA *Signature;
EFI_IMAGE_EXECUTION_ACTION Action;
WIN_CERTIFICATE *WinCertificate;
UINT32 Policy;
UINT8 *SecureBootEnable;
UINT8 *SecureBoot;
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
UINT32 NumberOfRvaAndSizes;
UINT32 CertSize;
@ -1309,43 +1308,22 @@ DxeImageVerificationHandler (
return EFI_ACCESS_DENIED;
}
GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);
GetEfiGlobalVariable2 (EFI_SECURE_BOOT_MODE_NAME, (VOID**)&SecureBoot, NULL);
//
// Skip verification if SecureBootEnable variable doesn't exist.
// Skip verification if SecureBoot variable doesn't exist.
//
if (SecureBootEnable == NULL) {
if (SecureBoot == NULL) {
return EFI_SUCCESS;
}
//
// Skip verification if SecureBootEnable is disabled.
// Skip verification if SecureBoot is disabled.
//
if (*SecureBootEnable == SECURE_BOOT_DISABLE) {
FreePool (SecureBootEnable);
if (*SecureBoot == SECURE_BOOT_MODE_DISABLE) {
FreePool (SecureBoot);
return EFI_SUCCESS;
}
FreePool (SecureBootEnable);
GetEfiGlobalVariable2 (EFI_SETUP_MODE_NAME, (VOID**)&SetupMode, NULL);
//
// SetupMode doesn't exist means no AuthVar driver is dispatched,
// skip verification.
//
if (SetupMode == NULL) {
return EFI_SUCCESS;
}
//
// If platform is in SETUP MODE, skip verification.
//
if (*SetupMode == SETUP_MODE) {
FreePool (SetupMode);
return EFI_SUCCESS;
}
FreePool (SetupMode);
FreePool (SecureBoot);
//
// Read the Dos header.

5
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.inf
View File

@ -68,13 +68,8 @@
gEfiCertSha256Guid
gEfiCertX509Guid
gEfiCertRsa2048Guid
gEfiSecureBootEnableDisableGuid
[Pcd]
gEfiSecurityPkgTokenSpaceGuid.PcdOptionRomImageVerificationPolicy
gEfiSecurityPkgTokenSpaceGuid.PcdRemovableMediaImageVerificationPolicy
gEfiSecurityPkgTokenSpaceGuid.PcdFixedMediaImageVerificationPolicy

4
SecurityPkg/VariableAuthenticated/RuntimeDxe/AuthService.c
View File

@ -323,7 +323,7 @@ AutenticatedVariableServiceInitialize (
// If "SecureBootEnable" variable is SECURE_BOOT_ENABLE and in USER_MODE, Set "SecureBoot" variable to SECURE_BOOT_MODE_ENABLE.
// If "SecureBootEnable" variable is SECURE_BOOT_DISABLE, Set "SecureBoot" variable to SECURE_BOOT_MODE_DISABLE.
//
SecureBootEnable = SECURE_BOOT_MODE_DISABLE;
SecureBootEnable = SECURE_BOOT_DISABLE;
FindVariable (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
if (Variable.CurrPtr != NULL) {
SecureBootEnable = *(GetVariableDataPtr (Variable.CurrPtr));
@ -331,7 +331,7 @@ AutenticatedVariableServiceInitialize (
//
// "SecureBootEnable" not exist, initialize it in USER_MODE.
//
SecureBootEnable = SECURE_BOOT_MODE_ENABLE;
SecureBootEnable = SECURE_BOOT_ENABLE;
Status = UpdateVariable (
EFI_SECURE_BOOT_ENABLE_NAME,
&gEfiSecureBootEnableDisableGuid,

2
SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfig.vfr
View File

@ -51,7 +51,7 @@ formset
questionid = KEY_SECURE_BOOT_ENABLE,
prompt = STRING_TOKEN(STR_SECURE_BOOT_PROMPT),
help = STRING_TOKEN(STR_SECURE_BOOT_HELP),
flags = INTERACTIVE,
flags = INTERACTIVE | RESET_REQUIRED,
endcheckbox;
endif;

22
SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c
View File

@ -2069,27 +2069,25 @@ SecureBootExtractConfigFromVariable (
{
UINT8 *SecureBootEnable;
UINT8 *SetupMode;
UINT8 *SecureBoot;
UINT8 *SecureBootMode;
SecureBootEnable = NULL;
SetupMode = NULL;
SecureBoot = NULL;
SecureBootMode = NULL;
//
// Get the SecureBootEnable Variable
//
GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);
//
// If the SecureBootEnable Variable doesn't exist, hide the SecureBoot Enable/Disable
// Checkbox.
//
GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);
if (SecureBootEnable == NULL) {
ConfigData->HideSecureBoot = TRUE;
} else {
ConfigData->HideSecureBoot = FALSE;
ConfigData->SecureBootState = *SecureBootEnable;
}
//
// If it is Physical Presence User, set the PhysicalPresent to true.
//
@ -2103,11 +2101,21 @@ SecureBootExtractConfigFromVariable (
// If there is no PK then the Delete Pk button will be gray.
//
GetVariable2 (EFI_SETUP_MODE_NAME, &gEfiGlobalVariableGuid, (VOID**)&SetupMode, NULL);
if (SetupMode == NULL || (*SetupMode) == 1) {
if (SetupMode == NULL || (*SetupMode) == SETUP_MODE) {
ConfigData->HasPk = FALSE;
} else {
ConfigData->HasPk = TRUE;
}
//
// If the value of SecureBoot variable is 1, the platform is operating in secure boot mode.
//
GetVariable2 (EFI_SECURE_BOOT_MODE_NAME, &gEfiGlobalVariableGuid, (VOID**)&SecureBoot, NULL);
if (SecureBoot != NULL && *SecureBoot == SECURE_BOOT_MODE_ENABLE) {
ConfigData->SecureBootState = TRUE;
} else {
ConfigData->SecureBootState = FALSE;
}
//
// Get the SecureBootMode from CustomMode variable.