/** @file\r
Utility functions for expression evaluation.\r
\r
-Copyright (c) 2007, Intel Corporation\r
+Copyright (c) 2007 - 2009, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
**/\r
\r
-#include "Ui.h"\r
#include "Setup.h"\r
\r
//\r
// Unicode collation protocol interface\r
//\r
EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;\r
-\r
+EFI_USER_MANAGER_PROTOCOL *mUserManager = NULL;\r
\r
/**\r
Grow size of the stack.\r
//\r
// Free The Old Stack\r
//\r
- gBS->FreePool (*Stack);\r
+ FreePool (*Stack);\r
}\r
\r
//\r
\r
Question = IdToQuestion2 (Form, QuestionId);\r
if (Question != NULL) {\r
+ //\r
+ // EFI variable storage may be updated by Callback() asynchronous,\r
+ // to keep synchronous, always reload the Question Value.\r
+ //\r
+ if (Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {\r
+ GetQuestionValue (FormSet, Form, Question, FALSE);\r
+ }\r
+\r
return Question;\r
}\r
\r
**/\r
VOID\r
IfrStrToUpper (\r
- CHAR16 *String\r
+ IN CHAR16 *String\r
)\r
{\r
while (*String != 0) {\r
EFI_HII_VALUE Value;\r
CHAR16 *String;\r
CHAR16 *StringPtr;\r
- UINTN BufferSize;\r
\r
Status = PopExpression (&Value);\r
if (EFI_ERROR (Status)) {\r
//\r
// Hex string\r
//\r
- BufferSize = sizeof (UINT64);\r
- Status = HexStringToBuf ((UINT8 *) &Result->Value.u64, &BufferSize, StringPtr + 2, NULL);\r
+ Result->Value.u64 = StrHexToUint64 (String);\r
} else {\r
//\r
- // BUGBUG: Need handle decimal string\r
+ // decimal string\r
//\r
+ Result->Value.u64 = StrDecimalToUint64 (String);\r
}\r
- gBS->FreePool (String);\r
+ FreePool (String);\r
} else {\r
CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));\r
}\r
}\r
\r
String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r
- if (String== NULL) {\r
+ if (String[Index] == NULL) {\r
Status = EFI_NOT_FOUND;\r
goto Done;\r
}\r
}\r
if (String[1] != NULL) {\r
FreePool (String[1]);\r
- } \r
+ }\r
if (StringPtr != NULL) {\r
FreePool (StringPtr);\r
}\r
}\r
\r
String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r
- if (String== NULL) {\r
+ if (String [Index] == NULL) {\r
Status = EFI_NOT_FOUND;\r
goto Done;\r
}\r
}\r
if (String[1] != NULL) {\r
FreePool (String[1]);\r
- } \r
+ }\r
\r
return Status;\r
}\r
}\r
\r
String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r
- if (String== NULL) {\r
+ if (String[Index] == NULL) {\r
Status = EFI_NOT_FOUND;\r
goto Done;\r
}\r
}\r
if (String[1] != NULL) {\r
FreePool (String[1]);\r
- } \r
+ }\r
\r
return Status;\r
}\r
Result->Type = EFI_IFR_TYPE_STRING;\r
Result->Value.string = NewString (SubString, FormSet->HiiHandle);\r
\r
- gBS->FreePool (String);\r
+ FreePool (String);\r
\r
return Status;\r
}\r
}\r
\r
String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r
- if (String== NULL) {\r
+ if (String[Index] == NULL) {\r
Status = EFI_NOT_FOUND;\r
goto Done;\r
}\r
}\r
if (String[1] != NULL) {\r
FreePool (String[1]);\r
- } \r
+ }\r
\r
return Status;\r
}\r
}\r
\r
String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r
- if (String== NULL) {\r
+ if (String [Index] == NULL) {\r
Status = EFI_NOT_FOUND;\r
goto Done;\r
}\r
}\r
if (String[1] != NULL) {\r
FreePool (String[1]);\r
- } \r
+ }\r
\r
return Status;\r
}\r
\r
Str2 = GetToken (Value2->Value.string, HiiHandle);\r
if (Str2 == NULL) {\r
- gBS->FreePool (Str1);\r
+ FreePool (Str1);\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
Result = StrCmp (Str1, Str2);\r
\r
- gBS->FreePool (Str1);\r
- gBS->FreePool (Str2);\r
+ FreePool (Str1);\r
+ FreePool (Str2);\r
\r
return Result;\r
}\r
return Result;\r
}\r
\r
+/**\r
+ Check if current user has the privilege specified by the permissions GUID.\r
+\r
+ @param[in] Guid A GUID specifying setup access permissions.\r
+\r
+ @retval TRUE Current user has the privilege.\r
+ @retval FALSE Current user does not have the privilege.\r
+**/\r
+BOOLEAN\r
+CheckUserPrivilege (\r
+ IN EFI_GUID *Guid\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_USER_PROFILE_HANDLE UserProfileHandle;\r
+ EFI_USER_INFO_HANDLE UserInfoHandle;\r
+ EFI_USER_INFO *UserInfo;\r
+ EFI_GUID *UserPermissionsGuid;\r
+ UINTN UserInfoSize;\r
+ UINTN AccessControlDataSize;\r
+ EFI_USER_INFO_ACCESS_CONTROL *AccessControl;\r
+ UINTN RemainSize;\r
+\r
+ if (mUserManager == NULL) {\r
+ Status = gBS->LocateProtocol (\r
+ &gEfiUserManagerProtocolGuid,\r
+ NULL,\r
+ (VOID **) &mUserManager\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ ///\r
+ /// If the system does not support user management, then it is assumed that\r
+ /// all users have admin privilege and evaluation of each EFI_IFR_SECURITY\r
+ /// op-code is always TRUE.\r
+ ///\r
+ return TRUE;\r
+ }\r
+ }\r
+\r
+ Status = mUserManager->Current (mUserManager, &UserProfileHandle);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ ///\r
+ /// Enumerate all user information of the current user profile\r
+ /// to look for any EFI_USER_INFO_ACCESS_SETUP record.\r
+ ///\r
+ \r
+ for (UserInfoHandle = NULL;;) {\r
+ Status = mUserManager->GetNextInfo (mUserManager, UserProfileHandle, &UserInfoHandle);\r
+ if (EFI_ERROR (Status)) {\r
+ break;\r
+ }\r
+\r
+ UserInfoSize = 0;\r
+ Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, NULL, &UserInfoSize);\r
+ if (Status != EFI_BUFFER_TOO_SMALL) {\r
+ continue;\r
+ }\r
+\r
+ UserInfo = (EFI_USER_INFO *) AllocatePool (UserInfoSize);\r
+ if (UserInfo == NULL) {\r
+ break;\r
+ }\r
+\r
+ Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, UserInfo, &UserInfoSize);\r
+ if (EFI_ERROR (Status) ||\r
+ UserInfo->InfoType != EFI_USER_INFO_ACCESS_POLICY_RECORD ||\r
+ UserInfo->InfoSize <= sizeof (EFI_USER_INFO)) {\r
+ FreePool (UserInfo);\r
+ continue;\r
+ }\r
+\r
+ RemainSize = UserInfo->InfoSize - sizeof (EFI_USER_INFO);\r
+ AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)(UserInfo + 1);\r
+ while (RemainSize >= sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {\r
+ if (RemainSize < AccessControl->Size || AccessControl->Size <= sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {\r
+ break;\r
+ }\r
+ if (AccessControl->Type == EFI_USER_INFO_ACCESS_SETUP) {\r
+ ///\r
+ /// Check if current user has the privilege specified by the permissions GUID.\r
+ ///\r
+\r
+ UserPermissionsGuid = (EFI_GUID *)(AccessControl + 1);\r
+ AccessControlDataSize = AccessControl->Size - sizeof (EFI_USER_INFO_ACCESS_CONTROL);\r
+ while (AccessControlDataSize >= sizeof (EFI_GUID)) {\r
+ if (CompareGuid (Guid, UserPermissionsGuid)) {\r
+ FreePool (UserInfo);\r
+ return TRUE;\r
+ }\r
+ UserPermissionsGuid++;\r
+ AccessControlDataSize -= sizeof (EFI_GUID);\r
+ }\r
+ }\r
+ RemainSize -= AccessControl->Size;\r
+ AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)((UINT8 *)AccessControl + AccessControl->Size);\r
+ }\r
+\r
+ FreePool (UserInfo);\r
+ }\r
+ return FALSE;\r
+}\r
\r
/**\r
- Evaluate the result of a HII expression\r
+ Evaluate the result of a HII expression.\r
+\r
+ If Expression is NULL, then ASSERT.\r
\r
@param FormSet FormSet associated with this expression.\r
@param Form Form associated with this expression.\r
//\r
ResetExpressionStack ();\r
\r
+ ASSERT (Expression != NULL);\r
Expression->Result.Type = EFI_IFR_TYPE_OTHER;\r
\r
Link = GetFirstNode (&Expression->OpCodeListHead);\r
Value = &Question->HiiValue;\r
break;\r
\r
+ case EFI_IFR_SECURITY_OP:\r
+ Value->Value.b = CheckUserPrivilege (&OpCode->Guid);\r
+ break;\r
+\r
case EFI_IFR_QUESTION_REF3_OP:\r
if (OpCode->DevicePath == 0) {\r
//\r
\r
Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r
Value->Value.u64 = StrLen (StrPtr);\r
- gBS->FreePool (StrPtr);\r
+ FreePool (StrPtr);\r
break;\r
\r
case EFI_IFR_NOT_OP:\r
} else {\r
Index = (UINT16) Value->Value.u64;\r
Value->Value.string = Index;\r
- gBS->FreePool (StrPtr);\r
+ FreePool (StrPtr);\r
}\r
break;\r
\r
} else {\r
Value->Value.b = FALSE;\r
}\r
- gBS->FreePool (StrPtr);\r
+ FreePool (StrPtr);\r
Value->Type = EFI_IFR_TYPE_BOOLEAN;\r
}\r
break;\r
mUnicodeCollation->StrUpr (mUnicodeCollation, StrPtr);\r
}\r
Value->Value.string = NewString (StrPtr, FormSet->HiiHandle);\r
- gBS->FreePool (StrPtr);\r
+ FreePool (StrPtr);\r
break;\r
\r
case EFI_IFR_BITWISE_NOT_OP:\r
break;\r
\r
case EFI_IFR_NOT_EQUAL_OP:\r
- Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r
+ Value->Value.b = (BOOLEAN) ((Result != 0) ? TRUE : FALSE);\r
break;\r
\r
case EFI_IFR_GREATER_EQUAL_OP:\r
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