diff options
Diffstat (limited to 'RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c')
| -rw-r--r-- | RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c | 5770 |
1 files changed, 5770 insertions, 0 deletions
diff --git a/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c new file mode 100644 index 0000000000..80b93beae9 --- /dev/null +++ b/RedfishPkg/Library/HiiUtilityLib/HiiUtilityInternal.c @@ -0,0 +1,5770 @@ +/** @file
+ HII utility internal functions.
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+ (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
+ Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "HiiInternal.h"
+
+CHAR16 *mUnknownString = L"!";
+CHAR16 *gEmptyString = L"";
+
+EFI_HII_VALUE *mExpressionEvaluationStack = NULL;
+EFI_HII_VALUE *mExpressionEvaluationStackEnd = NULL;
+EFI_HII_VALUE *mExpressionEvaluationStackPointer = NULL;
+UINTN mExpressionEvaluationStackOffset = 0;
+
+//
+// Unicode collation protocol interface
+//
+EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;
+EFI_USER_MANAGER_PROTOCOL *mUserManager = NULL;
+
+/**
+ Allocate new memory and then copy the Unicode string Source to Destination.
+
+ @param[in,out] Dest Location to copy string
+ @param[in] Src String to copy
+
+**/
+VOID
+NewStringCopy (
+ IN OUT CHAR16 **Dest,
+ IN CHAR16 *Src
+ )
+{
+ if (*Dest != NULL) {
+ FreePool (*Dest);
+ }
+
+ *Dest = AllocateCopyPool (StrSize (Src), Src);
+}
+
+/**
+ Set Value of given Name in a NameValue Storage.
+
+ @param[in] Storage The NameValue Storage.
+ @param[in] Name The Name.
+ @param[in] Value The Value to set.
+ @param[out] ReturnNode The node use the input name.
+
+ @retval EFI_SUCCESS Value found for given Name.
+ @retval EFI_NOT_FOUND No such Name found in NameValue storage.
+
+**/
+EFI_STATUS
+SetValueByName (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Name,
+ IN CHAR16 *Value,
+ OUT HII_NAME_VALUE_NODE **ReturnNode
+ )
+{
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+ CHAR16 *Buffer;
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrCmp (Name, Node->Name) == 0) {
+ Buffer = Node->Value;
+ if (Buffer != NULL) {
+ FreePool (Buffer);
+ }
+
+ Buffer = AllocateCopyPool (StrSize (Value), Value);
+ if (Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Node->Value = Buffer;
+
+ if (ReturnNode != NULL) {
+ *ReturnNode = Node;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Get bit field value from the buffer and then set the value for the question.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param[in] Question The question refer to bit field.
+ @param[in] Buffer Point to the buffer which the question value get from.
+ @param[out] QuestionValue The Question Value retrieved from Bits.
+
+**/
+VOID
+GetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN UINT8 *Buffer,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ )
+{
+ UINTN StartBit;
+ UINTN EndBit;
+ UINT32 RetVal;
+ UINT32 BufferValue;
+
+ StartBit = Question->BitVarOffset % 8;
+ EndBit = StartBit + Question->BitStorageWidth - 1;
+
+ CopyMem ((UINT8 *)&BufferValue, Buffer, Question->StorageWidth);
+
+ RetVal = BitFieldRead32 (BufferValue, StartBit, EndBit);
+
+ //
+ // Set question value.
+ // Note: Since Question with BufferValue (orderedlist, password, string)are not supported to refer bit field.
+ // Only oneof/checkbox/oneof can support bit field.So we can copy the value to the HiiValue of Question directly.
+ //
+ CopyMem ((UINT8 *)&QuestionValue->Value, (UINT8 *)&RetVal, Question->StorageWidth);
+}
+
+/**
+ Set bit field value to the buffer.
+ Note: Data type UINT32 can cover all the bit field value.
+
+ @param[in] Question The question refer to bit field.
+ @param[in,out] Buffer Point to the buffer which the question value set to.
+ @param[in] Value The bit field value need to set.
+
+**/
+VOID
+SetBitsQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN OUT UINT8 *Buffer,
+ IN UINT32 Value
+ )
+{
+ UINT32 Operand;
+ UINTN StartBit;
+ UINTN EndBit;
+ UINT32 RetVal;
+
+ StartBit = Question->BitVarOffset % 8;
+ EndBit = StartBit + Question->BitStorageWidth - 1;
+
+ CopyMem ((UINT8 *)&Operand, Buffer, Question->StorageWidth);
+ RetVal = BitFieldWrite32 (Operand, StartBit, EndBit, Value);
+ CopyMem (Buffer, (UINT8 *)&RetVal, Question->StorageWidth);
+}
+
+/**
+ Convert the buffer value to HiiValue.
+
+ @param[in] Question The question.
+ @param[in] Value Unicode buffer save the question value.
+ @param[out] QuestionValue The Question Value retrieved from Buffer.
+
+ @retval Status whether convert the value success.
+
+**/
+EFI_STATUS
+BufferToQuestionValue (
+ IN HII_STATEMENT *Question,
+ IN CHAR16 *Value,
+ OUT HII_STATEMENT_VALUE *QuestionValue
+ )
+{
+ CHAR16 *StringPtr;
+ BOOLEAN IsBufferStorage;
+ CHAR16 *DstBuf;
+ CHAR16 TempChar;
+ UINTN LengthStr;
+ UINT8 *Dst;
+ CHAR16 TemStr[5];
+ UINTN Index;
+ UINT8 DigitUint8;
+ BOOLEAN IsString;
+ UINTN Length;
+ EFI_STATUS Status;
+ UINT8 *Buffer;
+
+ Buffer = NULL;
+
+ IsString = (BOOLEAN)((QuestionValue->Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
+ if ((Question->Storage->Type == EFI_HII_VARSTORE_BUFFER) ||
+ (Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER))
+ {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+
+ //
+ // Question Value is provided by Buffer Storage or NameValue Storage
+ //
+ if ((QuestionValue->Type == EFI_IFR_TYPE_STRING) || (QuestionValue->Type == EFI_IFR_TYPE_BUFFER)) {
+ //
+ // This Question is password or orderedlist
+ //
+ if (QuestionValue->Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Dst = QuestionValue->Buffer;
+ } else {
+ //
+ // Other type of Questions
+ //
+ if (Question->QuestionReferToBitField) {
+ Buffer = (UINT8 *)AllocateZeroPool (Question->StorageWidth);
+ if (Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Dst = Buffer;
+ } else {
+ Dst = (UINT8 *)&QuestionValue->Value;
+ }
+ }
+
+ //
+ // Temp cut at the end of this section, end with '\0' or '&'.
+ //
+ StringPtr = Value;
+ while (*StringPtr != L'\0' && *StringPtr != L'&') {
+ StringPtr++;
+ }
+
+ TempChar = *StringPtr;
+ *StringPtr = L'\0';
+
+ LengthStr = StrLen (Value);
+
+ //
+ // Value points to a Unicode hexadecimal string, we need to convert the string to the value with CHAR16/UINT8...type.
+ // When generating the Value string, we follow this rule: 1 byte -> 2 Unicode characters (for string: 2 byte(CHAR16) ->4 Unicode characters).
+ // So the maximum value string length of a question is : Question->StorageWidth * 2.
+ // If the value string length > Question->StorageWidth * 2, only set the string length as Question->StorageWidth * 2, then convert.
+ //
+ if (LengthStr > (UINTN)Question->StorageWidth * 2) {
+ Length = (UINTN)Question->StorageWidth * 2;
+ } else {
+ Length = LengthStr;
+ }
+
+ Status = EFI_SUCCESS;
+ if (!IsBufferStorage && IsString) {
+ //
+ // Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
+ // Add string tail char L'\0' into Length
+ //
+ DstBuf = (CHAR16 *)Dst;
+ ZeroMem (TemStr, sizeof (TemStr));
+ for (Index = 0; Index < Length; Index += 4) {
+ StrnCpyS (TemStr, sizeof (TemStr) / sizeof (CHAR16), Value + Index, 4);
+ DstBuf[Index/4] = (CHAR16)StrHexToUint64 (TemStr);
+ }
+
+ //
+ // Add tailing L'\0' character
+ //
+ DstBuf[Index/4] = L'\0';
+ } else {
+ ZeroMem (TemStr, sizeof (TemStr));
+ for (Index = 0; Index < Length; Index++) {
+ TemStr[0] = Value[LengthStr - Index - 1];
+ DigitUint8 = (UINT8)StrHexToUint64 (TemStr);
+ if ((Index & 1) == 0) {
+ Dst[Index/2] = DigitUint8;
+ } else {
+ Dst[Index/2] = (UINT8)((DigitUint8 << 4) + Dst[Index/2]);
+ }
+ }
+ }
+
+ *StringPtr = TempChar;
+
+ if ((Buffer != NULL) && Question->QuestionReferToBitField) {
+ GetBitsQuestionValue (Question, Buffer, QuestionValue);
+ FreePool (Buffer);
+ }
+
+ return Status;
+}
+
+/**
+ Get the string based on the StringId and HII Package List Handle.
+
+ @param[in] Token The String's ID.
+ @param[in] HiiHandle The package list in the HII database to search for
+ the specified string.
+
+ @return The output string.
+
+**/
+CHAR16 *
+GetTokenString (
+ IN EFI_STRING_ID Token,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ EFI_STRING String;
+
+ if (HiiHandle == NULL) {
+ return NULL;
+ }
+
+ String = HiiGetString (HiiHandle, Token, NULL);
+ if (String == NULL) {
+ String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
+ if (String == NULL) {
+ return NULL;
+ }
+ }
+
+ return (CHAR16 *)String;
+}
+
+/**
+ Converts the unicode character of the string from uppercase to lowercase.
+ This is a internal function.
+
+ @param[in] ConfigString String to be converted
+
+**/
+VOID
+EFIAPI
+HiiStringToLowercase (
+ IN EFI_STRING ConfigString
+ )
+{
+ EFI_STRING String;
+ BOOLEAN Lower;
+
+ //
+ // Convert all hex digits in range [A-F] in the configuration header to [a-f]
+ //
+ for (String = ConfigString, Lower = FALSE; *String != L'\0'; String++) {
+ if (*String == L'=') {
+ Lower = TRUE;
+ } else if (*String == L'&') {
+ Lower = FALSE;
+ } else if (Lower && (*String >= L'A') && (*String <= L'F')) {
+ *String = (CHAR16)(*String - L'A' + L'a');
+ }
+ }
+}
+
+/**
+ Evaluate if the result is a non-zero value.
+
+ @param[in] Result The result to be evaluated.
+
+ @retval TRUE It is a non-zero value.
+ @retval FALSE It is a zero value.
+
+**/
+BOOLEAN
+IsHiiValueTrue (
+ IN EFI_HII_VALUE *Result
+ )
+{
+ switch (Result->Type) {
+ case EFI_IFR_TYPE_BOOLEAN:
+ return Result->Value.b;
+
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ return (BOOLEAN)(Result->Value.u8 != 0);
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ return (BOOLEAN)(Result->Value.u16 != 0);
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ return (BOOLEAN)(Result->Value.u32 != 0);
+
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ return (BOOLEAN)(Result->Value.u64 != 0);
+
+ default:
+ return FALSE;
+ }
+}
+
+/**
+ Set a new string to string package.
+
+ @param[in] String A pointer to the Null-terminated Unicode string
+ to add or update in the String Package associated
+ with HiiHandle.
+ @param[in] HiiHandle A handle that was previously registered in the
+ HII Database.
+
+ @return the Id for this new string.
+
+**/
+EFI_STRING_ID
+NewHiiString (
+ IN CHAR16 *String,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ EFI_STRING_ID StringId;
+
+ StringId = HiiSetString (HiiHandle, 0, String, NULL);
+ return StringId;
+}
+
+/**
+ Perform nosubmitif check for a Form.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in] Form Form data structure.
+ @param[in] Question The Question to be validated.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+ValidateNoSubmit (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN HII_STATEMENT *Question
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *ListHead;
+ HII_EXPRESSION *Expression;
+
+ ListHead = &Question->NoSubmitListHead;
+ Link = GetFirstNode (ListHead);
+ while (!IsNull (ListHead, Link)) {
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+
+ //
+ // Evaluate the expression
+ //
+ Status = EvaluateHiiExpression (FormSet, Form, Expression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (IsHiiValueTrue (&Expression->Result)) {
+ return EFI_NOT_READY;
+ }
+
+ Link = GetNextNode (ListHead, Link);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Perform NoSubmit check for each Form in FormSet.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in,out] CurrentForm Current input form data structure.
+ @param[out] Statement The statement for this check.
+
+ @retval EFI_SUCCESS Form validation pass.
+ @retval other Form validation failed.
+
+**/
+EFI_STATUS
+NoSubmitCheck (
+ IN HII_FORMSET *FormSet,
+ IN OUT HII_FORM **CurrentForm,
+ OUT HII_STATEMENT **Statement
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_STATEMENT *Question;
+ HII_FORM *Form;
+ LIST_ENTRY *LinkForm;
+
+ LinkForm = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, LinkForm)) {
+ Form = HII_FORM_FROM_LINK (LinkForm);
+ LinkForm = GetNextNode (&FormSet->FormListHead, LinkForm);
+
+ if ((*CurrentForm != NULL) && (*CurrentForm != Form)) {
+ continue;
+ }
+
+ Link = GetFirstNode (&Form->StatementListHead);
+ while (!IsNull (&Form->StatementListHead, Link)) {
+ Question = HII_STATEMENT_FROM_LINK (Link);
+ Status = ValidateNoSubmit (FormSet, Form, Question);
+ if (EFI_ERROR (Status)) {
+ if (*CurrentForm == NULL) {
+ *CurrentForm = Form;
+ }
+
+ if (Statement != NULL) {
+ *Statement = Question;
+ }
+
+ return Status;
+ }
+
+ Link = GetNextNode (&Form->StatementListHead, Link);
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Allocate new memory and concatenate Source on the end of Destination.
+
+ @param Dest String to added to the end of.
+ @param Src String to concatenate.
+
+**/
+VOID
+NewStringCat (
+ IN OUT CHAR16 **Dest,
+ IN CHAR16 *Src
+ )
+{
+ CHAR16 *NewHiiString;
+ UINTN MaxLen;
+
+ if (*Dest == NULL) {
+ NewStringCopy (Dest, Src);
+ return;
+ }
+
+ MaxLen = (StrSize (*Dest) + StrSize (Src) - 2) / sizeof (CHAR16);
+ NewHiiString = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewHiiString == NULL) {
+ return;
+ }
+
+ StrCpyS (NewHiiString, MaxLen, *Dest);
+ StrCatS (NewHiiString, MaxLen, Src);
+
+ FreePool (*Dest);
+ *Dest = NewHiiString;
+}
+
+/**
+ Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
+
+ @param[in] Storage The Storage to be converted.
+ @param[in] ConfigResp The returned <ConfigResp>.
+ @param[in] ConfigRequest The ConfigRequest string.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+StorageToConfigResp (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 **ConfigResp,
+ IN CHAR16 *ConfigRequest
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+ UINT8 *SourceBuf;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+ EFI_STRING TempConfigRequest;
+ UINTN RequestStrSize;
+
+ Status = EFI_SUCCESS;
+
+ if (Storage->ConfigHdr == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (ConfigRequest != NULL) {
+ TempConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (TempConfigRequest == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ } else {
+ RequestStrSize = (StrLen (Storage->ConfigHdr) + StrLen (Storage->ConfigRequest) + 1) * sizeof (CHAR16);
+ TempConfigRequest = AllocatePool (RequestStrSize);
+ if (TempConfigRequest == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ UnicodeSPrint (
+ TempConfigRequest,
+ RequestStrSize,
+ L"%s%s",
+ Storage->ConfigHdr,
+ Storage->ConfigRequest
+ );
+ }
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **)&HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ SourceBuf = Storage->Buffer;
+ Status = HiiConfigRouting->BlockToConfig (
+ HiiConfigRouting,
+ TempConfigRequest,
+ SourceBuf,
+ Storage->Size,
+ ConfigResp,
+ &Progress
+ );
+ break;
+
+ case EFI_HII_VARSTORE_NAME_VALUE:
+
+ *ConfigResp = NULL;
+ NewStringCat (ConfigResp, Storage->ConfigHdr);
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrStr (TempConfigRequest, Node->Name) != NULL) {
+ NewStringCat (ConfigResp, L"&");
+ NewStringCat (ConfigResp, Node->Name);
+ NewStringCat (ConfigResp, L"=");
+ NewStringCat (ConfigResp, Node->Value);
+ }
+
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+
+ break;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ return Status;
+}
+
+/**
+ Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
+
+ @param[in] Storage The Storage to receive the settings.
+ @param[in] ConfigResp The <ConfigResp> to be converted.
+
+ @retval EFI_SUCCESS Convert success.
+ @retval EFI_INVALID_PARAMETER Incorrect storage type.
+
+**/
+EFI_STATUS
+ConfigRespToStorage (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *ConfigResp
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ UINTN BufferSize;
+ CHAR16 *StrPtr;
+ CHAR16 *Name;
+ CHAR16 *Value;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ Status = EFI_SUCCESS;
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **)&HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ BufferSize = Storage->Size;
+ Status = HiiConfigRouting->ConfigToBlock (
+ HiiConfigRouting,
+ ConfigResp,
+ Storage->Buffer,
+ &BufferSize,
+ &Progress
+ );
+ break;
+
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ StrPtr = StrStr (ConfigResp, L"PATH");
+ if (StrPtr == NULL) {
+ break;
+ }
+
+ StrPtr = StrStr (ConfigResp, L"&");
+ while (StrPtr != NULL) {
+ //
+ // Skip '&'
+ //
+ StrPtr = StrPtr + 1;
+ Name = StrPtr;
+ StrPtr = StrStr (StrPtr, L"=");
+ if (StrPtr == NULL) {
+ break;
+ }
+
+ *StrPtr = 0;
+
+ //
+ // Skip '='
+ //
+ StrPtr = StrPtr + 1;
+ Value = StrPtr;
+ StrPtr = StrStr (StrPtr, L"&");
+ if (StrPtr != NULL) {
+ *StrPtr = 0;
+ }
+
+ SetValueByName (Storage, Name, Value, NULL);
+ }
+
+ break;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ return Status;
+}
+
+/**
+ Fetch the Ifr binary data of a FormSet.
+
+ @param[in] Handle PackageList Handle
+ @param[in,out] FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param[out] BinaryLength The length of the FormSet IFR binary.
+ @param[out] BinaryData The buffer designed to receive the FormSet.
+
+ @retval EFI_SUCCESS Buffer filled with the requested FormSet.
+ BufferLength was updated.
+ @retval EFI_INVALID_PARAMETER The handle is unknown.
+ @retval EFI_NOT_FOUND A form or FormSet on the requested handle cannot
+ be found with the requested FormId.
+
+**/
+EFI_STATUS
+GetIfrBinaryData (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT UINTN *BinaryLength,
+ OUT UINT8 **BinaryData
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINTN BufferSize;
+ UINT8 *Package;
+ UINT8 *OpCodeData;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER PackageHeader;
+ UINT8 Index;
+ UINT8 NumberOfClassGuid;
+ BOOLEAN ClassGuidMatch;
+ EFI_GUID *ClassGuid;
+ EFI_GUID *ComparingGuid;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ OpCodeData = NULL;
+ Package = NULL;
+ ZeroMem (&PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ //
+ // if FormSetGuid is NULL or zero GUID, return first Setup FormSet in the package list
+ //
+ if (FormSetGuid == NULL) {
+ ComparingGuid = &gZeroGuid;
+ } else {
+ ComparingGuid = FormSetGuid;
+ }
+
+ //
+ // Get HII PackageList
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **)&HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ *BinaryData = NULL;
+ return Status;
+ }
+
+ BufferSize = 0;
+ HiiPackageList = NULL;
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ HiiPackageList = AllocatePool (BufferSize);
+ if (HiiPackageList == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
+ }
+
+ if (EFI_ERROR (Status)) {
+ if (HiiPackageList != NULL) {
+ FreePool (HiiPackageList);
+ }
+
+ *BinaryData = NULL;
+ return Status;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
+
+ ClassGuidMatch = FALSE;
+ while (Offset < PackageListLength) {
+ Package = ((UINT8 *)HiiPackageList) + Offset;
+ CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search FormSet in this Form Package
+ //
+
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader.Length) {
+ OpCodeData = Package + Offset2;
+
+ if (((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ //
+ // Try to compare against formset GUID
+ //
+
+ if (IsZeroGuid (FormSetGuid) ||
+ CompareGuid (ComparingGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER))))
+ {
+ break;
+ }
+
+ if (((EFI_IFR_OP_HEADER *)OpCodeData)->Length > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
+ //
+ // Try to compare against formset class GUID
+ //
+ NumberOfClassGuid = (UINT8)(((EFI_IFR_FORM_SET *)OpCodeData)->Flags & 0x3);
+ ClassGuid = (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_FORM_SET));
+ for (Index = 0; Index < NumberOfClassGuid; Index++) {
+ if (CompareGuid (ComparingGuid, ClassGuid + Index)) {
+ ClassGuidMatch = TRUE;
+ break;
+ }
+ }
+
+ if (ClassGuidMatch) {
+ break;
+ }
+ } else if (ComparingGuid == &gEfiHiiPlatformSetupFormsetGuid) {
+ ClassGuidMatch = TRUE;
+ break;
+ }
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *)OpCodeData)->Length;
+ }
+
+ if (Offset2 < PackageHeader.Length) {
+ //
+ // Target formset found
+ //
+ break;
+ }
+ }
+
+ Offset += PackageHeader.Length;
+ }
+
+ if (Offset >= PackageListLength) {
+ //
+ // Form package not found in this Package List
+ //
+ FreePool (HiiPackageList);
+ *BinaryData = NULL;
+ return EFI_NOT_FOUND;
+ }
+
+ if (FormSetGuid != NULL) {
+ //
+ // Return the FormSet GUID
+ //
+ CopyMem (FormSetGuid, &((EFI_IFR_FORM_SET *)OpCodeData)->Guid, sizeof (EFI_GUID));
+ }
+
+ //
+ // To determine the length of a whole FormSet IFR binary, one have to parse all the Opcodes
+ // in this FormSet; So, here just simply copy the data from start of a FormSet to the end
+ // of the Form Package.
+ //
+
+ *BinaryLength = PackageHeader.Length - Offset2;
+ *BinaryData = AllocateCopyPool (*BinaryLength, OpCodeData);
+ FreePool (HiiPackageList);
+ if (*BinaryData == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Check if the requested element is in storage.
+
+ @param Storage The storage contains elements.
+ @param RequestElement The element to be searched.
+
+**/
+BOOLEAN
+ElementValidation (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *RequestElement
+ )
+{
+ return StrStr (Storage->ConfigRequest, RequestElement) != NULL ? TRUE : FALSE;
+}
+
+/**
+ Append the Request element to the Config Request.
+
+ @param ConfigRequest Current ConfigRequest info.
+ @param SpareStrLen Current remain free buffer for config request.
+ @param RequestElement New Request element.
+
+**/
+VOID
+AppendConfigRequest (
+ IN OUT CHAR16 **ConfigRequest,
+ IN OUT UINTN *SpareStrLen,
+ IN CHAR16 *RequestElement
+ )
+{
+ CHAR16 *NewStr;
+ UINTN StringSize;
+ UINTN StrLength;
+ UINTN MaxLen;
+
+ StrLength = StrLen (RequestElement);
+ StringSize = (*ConfigRequest != NULL) ? StrSize (*ConfigRequest) : sizeof (CHAR16);
+ MaxLen = StringSize / sizeof (CHAR16) + *SpareStrLen;
+
+ //
+ // Append <RequestElement> to <ConfigRequest>
+ //
+ if (StrLength > *SpareStrLen) {
+ //
+ // Old String buffer is not sufficient for RequestElement, allocate a new one
+ //
+ MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
+ NewStr = AllocatePool (MaxLen * sizeof (CHAR16));
+ if (NewStr == NULL) {
+ return;
+ }
+
+ if (*ConfigRequest != NULL) {
+ CopyMem (NewStr, *ConfigRequest, StringSize);
+ FreePool (*ConfigRequest);
+ } else {
+ NewStr[0] = L'\0';
+ }
+
+ *ConfigRequest = NewStr;
+ *SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
+ }
+
+ StrCatS (*ConfigRequest, MaxLen, RequestElement);
+ *SpareStrLen -= StrLength;
+}
+
+/**
+ Adjust the config request info, remove the request elements which already in AllConfigRequest string.
+
+ @param Storage Form set Storage.
+ @param Request The input request string.
+ @param RespString Whether the input is ConfigRequest or ConfigResp format.
+
+ @retval TRUE Has element not covered by current used elements, need to continue to call ExtractConfig
+ @retval FALSE All elements covered by current used elements.
+
+**/
+BOOLEAN
+ConfigRequestAdjust (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Request,
+ IN BOOLEAN RespString
+ )
+{
+ CHAR16 *RequestElement;
+ CHAR16 *NextRequestElement;
+ CHAR16 *NextElementBackup;
+ CHAR16 *SearchKey;
+ CHAR16 *ValueKey;
+ BOOLEAN RetVal;
+ CHAR16 *ConfigRequest;
+
+ RetVal = FALSE;
+ NextElementBackup = NULL;
+ ValueKey = NULL;
+
+ if (Request != NULL) {
+ ConfigRequest = Request;
+ } else {
+ ConfigRequest = Storage->ConfigRequest;
+ }
+
+ if (Storage->ConfigRequest == NULL) {
+ Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (Storage->ConfigRequest == NULL) {
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+ //
+ // "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
+ //
+ SearchKey = L"&";
+ } else {
+ //
+ // "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
+ //
+ SearchKey = L"&OFFSET";
+ ValueKey = L"&VALUE";
+ }
+
+ //
+ // Find SearchKey storage
+ //
+ if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+ RequestElement = StrStr (ConfigRequest, L"PATH");
+ if (RequestElement == NULL) {
+ return FALSE;
+ }
+
+ RequestElement = StrStr (RequestElement, SearchKey);
+ } else {
+ RequestElement = StrStr (ConfigRequest, SearchKey);
+ }
+
+ while (RequestElement != NULL) {
+ //
+ // +1 to avoid find header itself.
+ //
+ NextRequestElement = StrStr (RequestElement + 1, SearchKey);
+
+ //
+ // The last Request element in configRequest string.
+ //
+ if (NextRequestElement != NULL) {
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+ NextElementBackup = NextRequestElement;
+ NextRequestElement = StrStr (RequestElement, ValueKey);
+ if (NextRequestElement == NULL) {
+ return FALSE;
+ }
+ }
+
+ //
+ // Replace "&" with '\0'.
+ //
+ *NextRequestElement = L'\0';
+ } else {
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+ NextElementBackup = NextRequestElement;
+ NextRequestElement = StrStr (RequestElement, ValueKey);
+ if (NextRequestElement == NULL) {
+ return FALSE;
+ }
+
+ //
+ // Replace "&" with '\0'.
+ //
+ *NextRequestElement = L'\0';
+ }
+ }
+
+ if (!ElementValidation (Storage, RequestElement)) {
+ //
+ // Add this element to the Storage->BrowserStorage->AllRequestElement.
+ //
+ AppendConfigRequest (&Storage->ConfigRequest, &Storage->SpareStrLen, RequestElement);
+ RetVal = TRUE;
+ }
+
+ if (NextRequestElement != NULL) {
+ //
+ // Restore '&' with '\0' for later used.
+ //
+ *NextRequestElement = L'&';
+ }
+
+ if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
+ RequestElement = NextElementBackup;
+ } else {
+ RequestElement = NextRequestElement;
+ }
+ }
+
+ return RetVal;
+}
+
+/**
+ Fill storage with settings requested from Configuration Driver.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in] Storage Buffer Storage.
+
+**/
+VOID
+LoadFormSetStorage (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORMSET_STORAGE *Storage
+ )
+{
+ EFI_STATUS Status;
+ EFI_STRING Progress;
+ EFI_STRING Result;
+ CHAR16 *StrPtr;
+ EFI_STRING ConfigRequest;
+ UINTN RequestStrSize;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ ConfigRequest = NULL;
+
+ switch (Storage->Type) {
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ return;
+
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ #if 0 // bug fix for efivarstore
+ if (Storage->ConfigRequest != NULL) {
+ ConfigRequestAdjust (Storage, Storage->ConfigRequest, FALSE);
+ return;
+ }
+
+ #endif
+ break;
+
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ //
+ // Skip if there is no RequestElement.
+ //
+ if (Storage->ElementCount == 0) {
+ return;
+ }
+
+ break;
+
+ default:
+ return;
+ }
+
+ if (Storage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
+ //
+ // Create the config request string to get all fields for this storage.
+ // Allocate and fill a buffer large enough to hold the <ConfigHdr> template
+ // followed by "&OFFSET=0&WIDTH=WWWW"followed by a Null-terminator
+ //
+ RequestStrSize = StrSize (Storage->ConfigHdr) + 20 * sizeof (CHAR16);
+ ConfigRequest = AllocatePool (RequestStrSize);
+ if (ConfigRequest == NULL) {
+ return;
+ }
+
+ UnicodeSPrint (
+ ConfigRequest,
+ RequestStrSize,
+ L"%s&OFFSET=0&WIDTH=%04x",
+ Storage->ConfigHdr,
+ Storage->Size
+ );
+ } else {
+ RequestStrSize = (StrLen (Storage->ConfigHdr) + StrLen (Storage->ConfigRequest) + 1) * sizeof (CHAR16);
+ ConfigRequest = AllocatePool (RequestStrSize);
+ if (ConfigRequest == NULL) {
+ return;
+ }
+
+ UnicodeSPrint (
+ ConfigRequest,
+ RequestStrSize,
+ L"%s%s",
+ Storage->ConfigHdr,
+ Storage->ConfigRequest
+ );
+ }
+
+ //
+ // Request current settings from Configuration Driver
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **)&HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return;
+ }
+
+ Status = HiiConfigRouting->ExtractConfig (
+ HiiConfigRouting,
+ ConfigRequest,
+ &Progress,
+ &Result
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // Convert Result from <ConfigAltResp> to <ConfigResp>
+ //
+ StrPtr = StrStr (Result, L"&GUID=");
+ if (StrPtr != NULL) {
+ *StrPtr = L'\0';
+ }
+
+ Status = ConfigRespToStorage (Storage, Result);
+ FreePool (Result);
+ }
+
+ Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
+ if (Storage->ConfigRequest == NULL) {
+ if (ConfigRequest != NULL) {
+ FreePool (ConfigRequest);
+ }
+
+ return;
+ }
+
+ if (Storage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
+ if (ConfigRequest != NULL) {
+ FreePool (ConfigRequest);
+ }
+ }
+}
+
+/**
+ Zero extend integer/boolean/date/time to UINT64 for comparing.
+
+ @param[in] Value HII Value to be converted.
+
+**/
+VOID
+ExtendValueToU64 (
+ IN HII_STATEMENT_VALUE *Value
+ )
+{
+ UINT64 Temp;
+
+ Temp = 0;
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ Temp = Value->Value.u8;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ Temp = Value->Value.u16;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ Temp = Value->Value.u32;
+ break;
+
+ case EFI_IFR_TYPE_BOOLEAN:
+ Temp = Value->Value.b;
+ break;
+
+ case EFI_IFR_TYPE_TIME:
+ Temp = Value->Value.u32 & 0xffffff;
+ break;
+
+ case EFI_IFR_TYPE_DATE:
+ Temp = Value->Value.u32;
+ break;
+
+ default:
+ return;
+ }
+
+ Value->Value.u64 = Temp;
+}
+
+/**
+ Pop an element from the stack.
+
+ @param Stack On input: old stack
+ @param StackPtr On input: old stack pointer; On output: new stack pointer
+ @param Data Data to pop.
+
+ @retval EFI_SUCCESS The value was popped onto the stack.
+ @retval EFI_ACCESS_DENIED The pop operation underflowed the stack
+
+**/
+EFI_STATUS
+PopStack (
+ IN EFI_HII_VALUE *Stack,
+ IN OUT EFI_HII_VALUE **StackPtr,
+ OUT EFI_HII_VALUE *Data
+ );
+
+/**
+ Push an element onto the Boolean Stack.
+
+ @param Stack On input: old stack; On output: new stack
+ @param StackPtr On input: old stack pointer; On output: new stack
+ pointer
+ @param StackEnd On input: old stack end; On output: new stack end
+ @param Data Data to push.
+
+ @retval EFI_SUCCESS Push stack success.
+
+**/
+EFI_STATUS
+PushStack (
+ IN OUT EFI_HII_VALUE **Stack,
+ IN OUT EFI_HII_VALUE **StackPtr,
+ IN OUT EFI_HII_VALUE **StackEnd,
+ IN EFI_HII_VALUE *Data
+ );
+
+/**
+ Initialize the internal data structure of a FormSet.
+
+ @param[in] Handle PackageList Handle
+ @param[in,out] FormSetGuid On input, GUID or class GUID of a formset. If not
+ specified (NULL or zero GUID), take the first
+ FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
+ found in package list.
+ On output, GUID of the formset found(if not NULL).
+ @param[out] FormSet FormSet data structure.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_FOUND The specified FormSet could not be found.
+
+**/
+EFI_STATUS
+CreateFormSetFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ IN OUT EFI_GUID *FormSetGuid,
+ OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Initialize a Formset and get current setting for Questions.
+
+ @param[in,out] FormSet FormSet data structure.
+
+**/
+VOID
+InitializeFormSet (
+ IN OUT HII_FORMSET *FormSet
+ );
+
+/**
+ Get Value for given Name from a NameValue Storage.
+
+ @param[in] Storage The NameValue Storage.
+ @param[in] Name The Name.
+ @param[in,out] Value The returned Value.
+
+ @retval EFI_SUCCESS Value found for given Name.
+ @retval EFI_NOT_FOUND No such Name found in NameValue storage.
+ @retval EFI_INVALID_PARAMETER Storage or Value is NULL.
+
+**/
+EFI_STATUS
+GetValueByName (
+ IN HII_FORMSET_STORAGE *Storage,
+ IN CHAR16 *Name,
+ IN OUT CHAR16 **Value
+ )
+{
+ LIST_ENTRY *Link;
+ HII_NAME_VALUE_NODE *Node;
+
+ if ((Storage == NULL) || (Value == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *Value = NULL;
+
+ Link = GetFirstNode (&Storage->NameValueList);
+ while (!IsNull (&Storage->NameValueList, Link)) {
+ Node = HII_NAME_VALUE_NODE_FROM_LINK (Link);
+
+ if (StrCmp (Name, Node->Name) == 0) {
+ NewStringCopy (Value, Node->Value);
+ return EFI_SUCCESS;
+ }
+
+ Link = GetNextNode (&Storage->NameValueList, Link);
+ }
+
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Get Question's current Value.
+
+ @param[in] FormSet FormSet data structure.
+ @param[in] Form Form data structure.
+ @param[in,out] Question Question to be initialized.
+ @param[in] GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Formset, Form or Question is NULL.
+
+**/
+EFI_STATUS
+GetQuestionValue (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_STATEMENT *Question,
+ IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
+ )
+{
+ EFI_STATUS Status;
+ BOOLEAN Enabled;
+ BOOLEAN Pending;
+ UINT8 *Dst;
+ UINTN StorageWidth;
+ EFI_TIME EfiTime;
+ HII_FORMSET_STORAGE *Storage;
+ HII_FORMSET_STORAGE *FormsetStorage;
+ EFI_IFR_TYPE_VALUE *QuestionValue;
+ CHAR16 *ConfigRequest;
+ CHAR16 *Progress;
+ CHAR16 *Result;
+ CHAR16 *Value;
+ UINTN Length;
+ BOOLEAN IsBufferStorage;
+ UINTN MaxLen;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
+
+ if ((FormSet == NULL) || (Form == NULL) || (Question == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ Value = NULL;
+ Result = NULL;
+
+ if (GetValueFrom >= GetSetValueWithMax) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Question value is provided by an Expression, evaluate it
+ //
+ if (Question->ValueExpression != NULL) {
+ Status = EvaluateHiiExpression (FormSet, Form, Question->ValueExpression);
+ if (!EFI_ERROR (Status)) {
+ if (Question->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (Question->Value.Type == EFI_IFR_TYPE_BUFFER && Question->Value.Buffer != NULL);
+ if (Question->StorageWidth > Question->ValueExpression->Result.BufferLen) {
+ CopyMem (Question->Value.Buffer, Question->ValueExpression->Result.Buffer, Question->ValueExpression->Result.BufferLen);
+ Question->Value.BufferLen = Question->ValueExpression->Result.BufferLen;
+ } else {
+ CopyMem (Question->Value.Buffer, Question->ValueExpression->Result.Buffer, Question->StorageWidth);
+ Question->Value.BufferLen = Question->StorageWidth;
+ }
+
+ FreePool (Question->ValueExpression->Result.Buffer);
+ }
+
+ Question->Value.Type = Question->ValueExpression->Result.Type;
+ CopyMem (&Question->Value.Value, &Question->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
+ }
+
+ return Status;
+ }
+
+ //
+ // Get question value by read expression.
+ //
+ if ((Question->ReadExpression != NULL) && (Form->FormType == STANDARD_MAP_FORM_TYPE)) {
+ Status = EvaluateHiiExpression (FormSet, Form, Question->ReadExpression);
+ if (!EFI_ERROR (Status) &&
+ ((Question->ReadExpression->Result.Type < EFI_IFR_TYPE_OTHER) || (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER)))
+ {
+ //
+ // Only update question value to the valid result.
+ //
+ if (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (Question->Value.Type == EFI_IFR_TYPE_BUFFER && Question->Value.Buffer != NULL);
+ if (Question->StorageWidth > Question->ReadExpression->Result.BufferLen) {
+ CopyMem (Question->Value.Buffer, Question->ReadExpression->Result.Buffer, Question->ReadExpression->Result.BufferLen);
+ Question->Value.BufferLen = Question->ReadExpression->Result.BufferLen;
+ } else {
+ CopyMem (Question->Value.Buffer, Question->ReadExpression->Result.Buffer, Question->StorageWidth);
+ Question->Value.BufferLen = Question->StorageWidth;
+ }
+
+ FreePool (Question->ReadExpression->Result.Buffer);
+ }
+
+ Question->Value.Type = Question->ReadExpression->Result.Type;
+ CopyMem (&Question->Value.Value, &Question->ReadExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
+ return EFI_SUCCESS;
+ }
+ }
+
+ //
+ // Question value is provided by RTC
+ //
+ Storage = Question->Storage;
+ QuestionValue = &Question->Value.Value;
+ if (Storage == NULL) {
+ //
+ // It's a Question without storage, or RTC date/time
+ //
+ if ((Question->Operand == EFI_IFR_DATE_OP) || (Question->Operand == EFI_IFR_TIME_OP)) {
+ //
+ // Date and time define the same Flags bit
+ //
+ switch (Question->ExtraData.Flags & EFI_QF_DATE_STORAGE) {
+ case QF_DATE_STORAGE_TIME:
+ Status = gRT->GetTime (&EfiTime, NULL);
+ break;
+
+ case QF_DATE_STORAGE_WAKEUP:
+ Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
+ break;
+
+ case QF_DATE_STORAGE_NORMAL:
+ default:
+ //
+ // For date/time without storage
+ //
+ return EFI_SUCCESS;
+ }
+
+ if (EFI_ERROR (Status)) {
+ if (Question->Operand == EFI_IFR_DATE_OP) {
+ QuestionValue->date.Year = 0xff;
+ QuestionValue->date.Month = 0xff;
+ QuestionValue->date.Day = 0xff;
+ } else {
+ QuestionValue->time.Hour = 0xff;
+ QuestionValue->time.Minute = 0xff;
+ QuestionValue->time.Second = 0xff;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ if (Question->Operand == EFI_IFR_DATE_OP) {
+ QuestionValue->date.Year = EfiTime.Year;
+ QuestionValue->date.Month = EfiTime.Month;
+ QuestionValue->date.Day = EfiTime.Day;
+ } else {
+ QuestionValue->time.Hour = EfiTime.Hour;
+ QuestionValue->time.Minute = EfiTime.Minute;
+ QuestionValue->time.Second = EfiTime.Second;
+ }
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Question value is provided by EFI variable
+ //
+ StorageWidth = Question->StorageWidth;
+ if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ if (Question->Value.Buffer != NULL) {
+ Dst = Question->Value.Buffer;
+ } else {
+ Dst = (UINT8 *)QuestionValue;
+ }
+
+ Status = gRT->GetVariable (
+ Question->VariableName,
+ &Storage->Guid,
+ NULL,
+ &StorageWidth,
+ Dst
+ );
+ //
+ // Always return success, even this EFI variable doesn't exist
+ //
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Question Value is provided by Buffer Storage or NameValue Storage
+ //
+ if (Question->Value.Buffer != NULL) {
+ //
+ // This Question is password or orderedlist
+ //
+ Dst = Question->Value.Buffer;
+ } else {
+ //
+ // Other type of Questions
+ //
+ Dst = (UINT8 *)&Question->Value.Value;
+ }
+
+ if ((Storage->Type == EFI_HII_VARSTORE_BUFFER) ||
+ (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER))
+ {
+ IsBufferStorage = TRUE;
+ } else {
+ IsBufferStorage = FALSE;
+ }
+
+ if (GetValueFrom == GetSetValueWithBuffer ) {
+ if (IsBufferStorage) {
+ //
+ // Copy from storage Edit buffer
+ // If the Question refer to bit filed, get the value in the related bit filed.
+ //
+ if (Question->QuestionReferToBitField) {
+ GetBitsQuestionValue (Question, Storage->Buffer + Question->VarStoreInfo.VarOffset, &Question->Value);
+ } else {
+ CopyMem (Dst, Storage->Buffer + Question->VarStoreInfo.VarOffset, StorageWidth);
+ }
+ } else {
+ Value = NULL;
+ Status = GetValueByName (Storage, Question->VariableName, &Value);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ASSERT (Value != NULL);
+ Status = BufferToQuestionValue (Question, Value, &Question->Value);
+ FreePool (Value);
+ }
+ } else {
+ FormsetStorage = GetFstStgFromVarId (FormSet, Question->VarStoreId);
+ ASSERT (FormsetStorage != NULL);
+ //
+ // <ConfigRequest> ::= <ConfigHdr> + <BlockName> ||
+ // <ConfigHdr> + "&" + <VariableName>
+ //
+ if (IsBufferStorage) {
+ Length = StrLen (FormsetStorage->ConfigHdr);
+ Length += StrLen (Question->BlockName);
+ } else {
+ Length = StrLen (FormsetStorage->ConfigHdr);
+ Length += StrLen (Question->VariableName) + 1;
+ }
+
+ // Allocate buffer include '\0'
+ MaxLen = Length + 1;
+ ConfigRequest = AllocatePool (MaxLen * sizeof (CHAR16));
+ ASSERT (ConfigRequest != NULL);
+
+ StrCpyS (ConfigRequest, MaxLen, FormsetStorage->ConfigHdr);
+ if (IsBufferStorage) {
+ StrCatS (ConfigRequest, MaxLen, Question->BlockName);
+ } else {
+ StrCatS (ConfigRequest, MaxLen, L"&");
+ StrCatS (ConfigRequest, MaxLen, Question->VariableName);
+ }
+
+ Status = gBS->LocateProtocol (
+ &gEfiHiiConfigRoutingProtocolGuid,
+ NULL,
+ (VOID **)&HiiConfigRouting
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Request current settings from Configuration Driver
+ //
+ Status = HiiConfigRouting->ExtractConfig (
+ HiiConfigRouting,
+ ConfigRequest,
+ &Progress,
+ &Result
+ );
+ FreePool (ConfigRequest);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Skip <ConfigRequest>
+ //
+ if (IsBufferStorage) {
+ Value = StrStr (Result, L"&VALUE");
+ if (Value == NULL) {
+ FreePool (Result);
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Skip "&VALUE"
+ //
+ Value = Value + 6;
+ } else {
+ Value = Result + Length;
+ }
+
+ if (*Value != '=') {
+ FreePool (Result);
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Skip '=', point to value
+ //
+ Value = Value + 1;
+
+ Status = BufferToQuestionValue (Question, Value, &Question->Value);
+ if (EFI_ERROR (Status)) {
+ FreePool (Result);
+ return Status;
+ }
+
+ //
+ // Synchronize Buffer
+ //
+ if (IsBufferStorage) {
+ CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Dst, StorageWidth);
+ } else {
+ SetValueByName (Storage, Question->VariableName, Value, NULL);
+ }
+
+ if (Result != NULL) {
+ FreePool (Result);
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Convert the input Unicode character to upper.
+
+ @param[in] String Th Unicode character to be converted.
+
+**/
+VOID
+IfrStrToUpper (
+ IN CHAR16 *String
+ )
+{
+ if (String == NULL) {
+ return;
+ }
+
+ while (*String != 0) {
+ if ((*String >= 'a') && (*String <= 'z')) {
+ *String = (UINT16)((*String) & ((UINT16) ~0x20));
+ }
+
+ String++;
+ }
+}
+
+/**
+ Check whether this value type can be transfer to EFI_IFR_TYPE_BUFFER type.
+
+ EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
+ EFI_IFR_TYPE_BUFFER when do the value compare.
+
+ @param[in] Value Expression value to compare on.
+
+ @retval TRUE This value type can be transferred to EFI_IFR_TYPE_BUFFER type.
+ @retval FALSE This value type can't be transferred to EFI_IFR_TYPE_BUFFER type.
+
+**/
+BOOLEAN
+IsTypeInBuffer (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return FALSE;
+ }
+
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_BUFFER:
+ case EFI_IFR_TYPE_DATE:
+ case EFI_IFR_TYPE_TIME:
+ case EFI_IFR_TYPE_REF:
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
+/**
+ Check whether this value type can be transfer to EFI_IFR_TYPE_UINT64
+
+ @param[in] Value Expression value to compare on.
+
+ @retval TRUE This value type can be transferred to EFI_IFR_TYPE_BUFFER type.
+ @retval FALSE This value type can't be transferred to EFI_IFR_TYPE_BUFFER type.
+
+**/
+BOOLEAN
+IsTypeInUINT64 (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return FALSE;
+ }
+
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ case EFI_IFR_TYPE_BOOLEAN:
+ return TRUE;
+
+ default:
+ return FALSE;
+ }
+}
+
+/**
+ Return the buffer pointer for this value.
+
+ EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
+ EFI_IFR_TYPE_BUFFER when do the value compare.
+
+ @param[in] Value Expression value to compare on.
+
+ @retval Buf Return the buffer pointer.
+
+**/
+UINT8 *
+GetBufferForValue (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return NULL;
+ }
+
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_BUFFER:
+ return Value->Buffer;
+
+ case EFI_IFR_TYPE_DATE:
+ return (UINT8 *)(&Value->Value.date);
+
+ case EFI_IFR_TYPE_TIME:
+ return (UINT8 *)(&Value->Value.time);
+
+ case EFI_IFR_TYPE_REF:
+ return (UINT8 *)(&Value->Value.ref);
+
+ default:
+ return NULL;
+ }
+}
+
+/**
+ Return the buffer length for this value.
+
+ EFI_IFR_TYPE_REF, EFI_IFR_TYPE_DATE and EFI_IFR_TYPE_TIME are converted to
+ EFI_IFR_TYPE_BUFFER when do the value compare.
+
+ @param[in] Value Expression value to compare on.
+
+ @retval BufLen Return the buffer length.
+
+**/
+UINT16
+GetLengthForValue (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return 0;
+ }
+
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_BUFFER:
+ return Value->BufferLen;
+
+ case EFI_IFR_TYPE_DATE:
+ return (UINT16)sizeof (EFI_HII_DATE);
+
+ case EFI_IFR_TYPE_TIME:
+ return (UINT16)sizeof (EFI_HII_TIME);
+
+ case EFI_IFR_TYPE_REF:
+ return (UINT16)sizeof (EFI_HII_REF);
+
+ default:
+ return 0;
+ }
+}
+
+/**
+ Get UINT64 type value.
+
+ @param[in] Value Input Hii value.
+
+ @retval UINT64 Return the UINT64 type value.
+
+**/
+UINT64
+HiiValueToUINT64 (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ UINT64 RetVal;
+
+ if (Value == NULL) {
+ return 0;
+ }
+
+ RetVal = 0;
+
+ switch (Value->Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ RetVal = Value->Value.u8;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ RetVal = Value->Value.u16;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ RetVal = Value->Value.u32;
+ break;
+
+ case EFI_IFR_TYPE_BOOLEAN:
+ RetVal = Value->Value.b;
+ break;
+
+ case EFI_IFR_TYPE_DATE:
+ RetVal = *(UINT64 *)&Value->Value.date;
+ break;
+
+ case EFI_IFR_TYPE_TIME:
+ RetVal = (*(UINT64 *)&Value->Value.time) & 0xffffff;
+ break;
+
+ default:
+ RetVal = Value->Value.u64;
+ break;
+ }
+
+ return RetVal;
+}
+
+/**
+ Compare two Hii value.
+
+ @param[in] Value1 Expression value to compare on left-hand.
+ @param[in] Value2 Expression value to compare on right-hand.
+ @param[out] Result Return value after compare.
+ retval 0 Two operators equal.
+ return Positive value if Value1 is greater than Value2.
+ retval Negative value if Value1 is less than Value2.
+ @param[in] HiiHandle Only required for string compare.
+
+ @retval other Could not perform compare on two values.
+ @retval EFI_SUCCESS Compare the value success.
+ @retval EFI_INVALID_PARAMETER Value1, Value2 or Result is NULL.
+
+**/
+EFI_STATUS
+CompareHiiValue (
+ IN EFI_HII_VALUE *Value1,
+ IN EFI_HII_VALUE *Value2,
+ OUT INTN *Result,
+ IN EFI_HII_HANDLE HiiHandle OPTIONAL
+ )
+{
+ INT64 Temp64;
+ CHAR16 *Str1;
+ CHAR16 *Str2;
+ UINTN Len;
+ UINT8 *Buf1;
+ UINT16 Buf1Len;
+ UINT8 *Buf2;
+ UINT16 Buf2Len;
+
+ if ((Value1 == NULL) || (Value2 == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((Value1->Type == EFI_IFR_TYPE_STRING) && (Value2->Type == EFI_IFR_TYPE_STRING)) {
+ if ((Value1->Value.string == 0) || (Value2->Value.string == 0)) {
+ //
+ // StringId 0 is reserved
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Value1->Value.string == Value2->Value.string) {
+ *Result = 0;
+ return EFI_SUCCESS;
+ }
+
+ Str1 = GetTokenString (Value1->Value.string, HiiHandle);
+ if (Str1 == NULL) {
+ //
+ // String not found
+ //
+ return EFI_NOT_FOUND;
+ }
+
+ Str2 = GetTokenString (Value2->Value.string, HiiHandle);
+ if (Str2 == NULL) {
+ FreePool (Str1);
+ return EFI_NOT_FOUND;
+ }
+
+ *Result = StrCmp (Str1, Str2);
+
+ FreePool (Str1);
+ FreePool (Str2);
+
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Take types(date, time, ref, buffer) as buffer
+ //
+ if (IsTypeInBuffer (Value1) && IsTypeInBuffer (Value2)) {
+ Buf1 = GetBufferForValue (Value1);
+ Buf1Len = GetLengthForValue (Value1);
+ Buf2 = GetBufferForValue (Value2);
+ Buf2Len = GetLengthForValue (Value2);
+
+ Len = Buf1Len > Buf2Len ? Buf2Len : Buf1Len;
+ *Result = CompareMem (Buf1, Buf2, Len);
+ if ((*Result == 0) && (Buf1Len != Buf2Len)) {
+ //
+ // In this case, means base on small number buffer, the data is same
+ // So which value has more data, which value is bigger.
+ //
+ *Result = Buf1Len > Buf2Len ? 1 : -1;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Take types(integer, boolean) as integer
+ //
+ if (IsTypeInUINT64 (Value1) && IsTypeInUINT64 (Value2)) {
+ Temp64 = HiiValueToUINT64 (Value1) - HiiValueToUINT64 (Value2);
+ if (Temp64 > 0) {
+ *Result = 1;
+ } else if (Temp64 < 0) {
+ *Result = -1;
+ } else {
+ *Result = 0;
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Check if current user has the privilege specified by the permissions GUID.
+
+ @param[in] Guid A GUID specifying setup access permissions.
+
+ @retval TRUE Current user has the privilege.
+ @retval FALSE Current user does not have the privilege.
+**/
+BOOLEAN
+CheckUserPrivilege (
+ IN EFI_GUID *Guid
+ )
+{
+ EFI_STATUS Status;
+ EFI_USER_PROFILE_HANDLE UserProfileHandle;
+ EFI_USER_INFO_HANDLE UserInfoHandle;
+ EFI_USER_INFO *UserInfo;
+ EFI_GUID *UserPermissionsGuid;
+ UINTN UserInfoSize;
+ UINTN AccessControlDataSize;
+ EFI_USER_INFO_ACCESS_CONTROL *AccessControl;
+ UINTN RemainSize;
+
+ if (mUserManager == NULL) {
+ Status = gBS->LocateProtocol (
+ &gEfiUserManagerProtocolGuid,
+ NULL,
+ (VOID **)&mUserManager
+ );
+ if (EFI_ERROR (Status)) {
+ ///
+ /// If the system does not support user management, then it is assumed that
+ /// all users have admin privilege and evaluation of each EFI_IFR_SECURITY
+ /// op-code is always TRUE.
+ ///
+ return TRUE;
+ }
+ }
+
+ Status = mUserManager->Current (mUserManager, &UserProfileHandle);
+ ASSERT_EFI_ERROR (Status);
+
+ ///
+ /// Enumerate all user information of the current user profile
+ /// to look for any EFI_USER_INFO_ACCESS_SETUP record.
+ ///
+
+ for (UserInfoHandle = NULL; ;) {
+ Status = mUserManager->GetNextInfo (mUserManager, UserProfileHandle, &UserInfoHandle);
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ UserInfoSize = 0;
+ Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, NULL, &UserInfoSize);
+ if (Status != EFI_BUFFER_TOO_SMALL) {
+ continue;
+ }
+
+ UserInfo = (EFI_USER_INFO *)AllocatePool (UserInfoSize);
+ if (UserInfo == NULL) {
+ break;
+ }
+
+ Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, UserInfo, &UserInfoSize);
+ if (EFI_ERROR (Status) ||
+ (UserInfo->InfoType != EFI_USER_INFO_ACCESS_POLICY_RECORD) ||
+ (UserInfo->InfoSize <= sizeof (EFI_USER_INFO)))
+ {
+ FreePool (UserInfo);
+ continue;
+ }
+
+ RemainSize = UserInfo->InfoSize - sizeof (EFI_USER_INFO);
+ AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)(UserInfo + 1);
+ while (RemainSize >= sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {
+ if ((RemainSize < AccessControl->Size) || (AccessControl->Size < sizeof (EFI_USER_INFO_ACCESS_CONTROL))) {
+ break;
+ }
+
+ if (AccessControl->Type == EFI_USER_INFO_ACCESS_SETUP) {
+ ///
+ /// Check if current user has the privilege specified by the permissions GUID.
+ ///
+
+ UserPermissionsGuid = (EFI_GUID *)(AccessControl + 1);
+ AccessControlDataSize = AccessControl->Size - sizeof (EFI_USER_INFO_ACCESS_CONTROL);
+ while (AccessControlDataSize >= sizeof (EFI_GUID)) {
+ if (CompareGuid (Guid, UserPermissionsGuid)) {
+ FreePool (UserInfo);
+ return TRUE;
+ }
+
+ UserPermissionsGuid++;
+ AccessControlDataSize -= sizeof (EFI_GUID);
+ }
+ }
+
+ RemainSize -= AccessControl->Size;
+ AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)((UINT8 *)AccessControl + AccessControl->Size);
+ }
+
+ FreePool (UserInfo);
+ }
+
+ return FALSE;
+}
+
+/**
+ Search a Question in Form scope using its QuestionId.
+
+ @param[in] Form The form which contains this Question.
+ @param[in] QuestionId Id of this Question.
+
+ @retval Pointer The Question.
+ @retval NULL Specified Question not found in the form.
+
+**/
+HII_STATEMENT *
+QuestionIdInForm (
+ IN HII_FORM *Form,
+ IN UINT16 QuestionId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_STATEMENT *Question;
+
+ if ((QuestionId == 0) || (Form == NULL)) {
+ //
+ // The value of zero is reserved
+ //
+ return NULL;
+ }
+
+ Link = GetFirstNode (&Form->StatementListHead);
+ while (!IsNull (&Form->StatementListHead, Link)) {
+ Question = HII_STATEMENT_FROM_LINK (Link);
+
+ if (Question->QuestionId == QuestionId) {
+ return Question;
+ }
+
+ Link = GetNextNode (&Form->StatementListHead, Link);
+ }
+
+ return NULL;
+}
+
+/**
+ Search a Question in Formset scope using its QuestionId.
+
+ @param[in] FormSet The formset which contains this form.
+ @param[in] Form The form which contains this Question.
+ @param[in] QuestionId Id of this Question.
+
+ @retval Pointer The Question.
+ @retval NULL Specified Question not found in the form.
+
+**/
+HII_STATEMENT *
+QuestionIdInFormset (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN UINT16 QuestionId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_STATEMENT *Question;
+
+ if ((FormSet == NULL) || (Form == NULL)) {
+ return NULL;
+ }
+
+ //
+ // Search in the form scope first
+ //
+ Question = QuestionIdInForm (Form, QuestionId);
+ if (Question != NULL) {
+ return Question;
+ }
+
+ //
+ // Search in the formset scope
+ //
+ Link = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, Link)) {
+ Form = HII_FORM_FROM_LINK (Link);
+
+ Question = QuestionIdInForm (Form, QuestionId);
+ if (Question != NULL) {
+ //
+ // EFI variable storage may be updated by Callback() asynchronous,
+ // to keep synchronous, always reload the Question Value.
+ //
+ if (Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
+ GetQuestionValue (FormSet, Form, Question, GetSetValueWithHiiDriver);
+ }
+
+ return Question;
+ }
+
+ Link = GetNextNode (&FormSet->FormListHead, Link);
+ }
+
+ return NULL;
+}
+
+/**
+ Push an Expression value onto the Stack
+
+ @param[in] Value Expression value to push.
+
+ @retval EFI_SUCCESS The value was pushed onto the stack.
+ @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
+ stack.
+ @retval EFI_INVALID_PARAMETER Value is NULL.
+
+**/
+EFI_STATUS
+PushExpression (
+ IN EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return PushStack (
+ &mExpressionEvaluationStack,
+ &mExpressionEvaluationStackPointer,
+ &mExpressionEvaluationStackEnd,
+ Value
+ );
+}
+
+/**
+ Pop an Expression value from the stack.
+
+ @param[out] Value Expression value to pop.
+
+ @retval EFI_SUCCESS The value was popped onto the stack.
+ @retval EFI_ACCESS_DENIED The pop operation underflowed the stack
+ @retval EFI_INVALID_PARAMETER Value is NULL.
+
+**/
+EFI_STATUS
+PopExpression (
+ OUT EFI_HII_VALUE *Value
+ )
+{
+ if (Value == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return PopStack (
+ mExpressionEvaluationStack + mExpressionEvaluationStackOffset,
+ &mExpressionEvaluationStackPointer,
+ Value
+ );
+}
+
+/**
+ Get current stack offset from stack start.
+
+ @return Stack offset to stack start.
+**/
+UINTN
+SaveExpressionEvaluationStackOffset (
+ VOID
+ )
+{
+ UINTN TempStackOffset;
+
+ TempStackOffset = mExpressionEvaluationStackOffset;
+ mExpressionEvaluationStackOffset = mExpressionEvaluationStackPointer - mExpressionEvaluationStack;
+ return TempStackOffset;
+}
+
+/**
+ Restore stack offset based on input stack offset
+
+ @param[in] StackOffset Offset to stack start.
+
+**/
+VOID
+RestoreExpressionEvaluationStackOffset (
+ UINTN StackOffset
+ )
+{
+ mExpressionEvaluationStackOffset = StackOffset;
+}
+
+/**
+ Evaluate opcode EFI_IFR_TO_STRING.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[in] Format String format in EFI_IFR_TO_STRING.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToString (
+ IN HII_FORMSET *FormSet,
+ IN UINT8 Format,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value;
+ CHAR16 *String;
+ CHAR16 *PrintFormat;
+ CHAR16 Buffer[MAXIMUM_VALUE_CHARACTERS];
+ UINT8 *SrcBuf;
+ UINTN BufferSize;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = PopExpression (&Value);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ switch (Value.Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ BufferSize = MAXIMUM_VALUE_CHARACTERS * sizeof (CHAR16);
+ switch (Format) {
+ case EFI_IFR_STRING_UNSIGNED_DEC:
+ case EFI_IFR_STRING_SIGNED_DEC:
+ PrintFormat = L"%ld";
+ break;
+
+ case EFI_IFR_STRING_LOWERCASE_HEX:
+ PrintFormat = L"%lx";
+ break;
+
+ case EFI_IFR_STRING_UPPERCASE_HEX:
+ PrintFormat = L"%lX";
+ break;
+
+ default:
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ UnicodeSPrint (Buffer, BufferSize, PrintFormat, Value.Value.u64);
+ String = Buffer;
+ break;
+
+ case EFI_IFR_TYPE_STRING:
+ CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));
+ return EFI_SUCCESS;
+
+ case EFI_IFR_TYPE_BOOLEAN:
+ String = (Value.Value.b) ? L"True" : L"False";
+ break;
+
+ case EFI_IFR_TYPE_BUFFER:
+ case EFI_IFR_TYPE_DATE:
+ case EFI_IFR_TYPE_TIME:
+ case EFI_IFR_TYPE_REF:
+ //
+ // + 3 is base on the unicode format, the length may be odd number,
+ // so need 1 byte to align, also need 2 bytes for L'\0'.
+ //
+ if (Value.Type == EFI_IFR_TYPE_BUFFER) {
+ SrcBuf = Value.Buffer;
+ } else {
+ SrcBuf = GetBufferForValue (&Value);
+ }
+
+ if (Format == EFI_IFR_STRING_ASCII) {
+ PrintFormat = L"%a";
+ } else {
+ // Format == EFI_IFR_STRING_UNICODE
+ PrintFormat = L"%s";
+ }
+
+ UnicodeSPrint (Buffer, sizeof (Buffer), PrintFormat, SrcBuf);
+ String = Buffer;
+ if (Value.Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Value.Buffer);
+ }
+
+ break;
+
+ default:
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Result->Type = EFI_IFR_TYPE_STRING;
+ Result->Value.string = NewHiiString (String, FormSet->HiiHandle);
+ return EFI_SUCCESS;
+}
+
+/**
+ Evaluate opcode EFI_IFR_TO_UINT.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToUint (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value;
+ CHAR16 *String;
+ CHAR16 *StringPtr;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = PopExpression (&Value);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if ((Value.Type >= EFI_IFR_TYPE_OTHER) && !IsTypeInBuffer (&Value)) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Status = EFI_SUCCESS;
+ if (Value.Type == EFI_IFR_TYPE_STRING) {
+ String = GetTokenString (Value.Value.string, FormSet->HiiHandle);
+ if (String == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ IfrStrToUpper (String);
+ StringPtr = StrStr (String, L"0X");
+ if (StringPtr != NULL) {
+ //
+ // Hex string
+ //
+ Result->Value.u64 = StrHexToUint64 (String);
+ } else {
+ //
+ // decimal string
+ //
+ Result->Value.u64 = StrDecimalToUint64 (String);
+ }
+
+ FreePool (String);
+ } else if (IsTypeInBuffer (&Value)) {
+ if (GetLengthForValue (&Value) > 8) {
+ if (Value.Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Value.Buffer);
+ }
+
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Result->Value.u64 = *(UINT64 *)GetBufferForValue (&Value);
+ if (Value.Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Value.Buffer);
+ }
+ } else {
+ CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));
+ }
+
+ Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_CATENATE.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrCatenate (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[2];
+ CHAR16 *String[2];
+ UINTN Index;
+ CHAR16 *StringPtr;
+ UINTN Size;
+ UINT16 Length0;
+ UINT16 Length1;
+ UINT8 *TmpBuf;
+ UINTN MaxLen;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // String[0] - The second string
+ // String[1] - The first string
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ StringPtr = NULL;
+ Status = EFI_SUCCESS;
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ for (Index = 0; Index < 2; Index++) {
+ if ((Value[Index].Type != EFI_IFR_TYPE_STRING) && !IsTypeInBuffer (&Value[Index])) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ if (Value[Index].Type == EFI_IFR_TYPE_STRING) {
+ String[Index] = GetTokenString (Value[Index].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+ }
+ }
+
+ if (Value[0].Type == EFI_IFR_TYPE_STRING) {
+ Size = StrSize (String[0]);
+ MaxLen = (StrSize (String[1]) + Size) / sizeof (CHAR16);
+ StringPtr = AllocatePool (MaxLen * sizeof (CHAR16));
+ ASSERT (StringPtr != NULL);
+ StrCpyS (StringPtr, MaxLen, String[1]);
+ StrCatS (StringPtr, MaxLen, String[0]);
+
+ Result->Type = EFI_IFR_TYPE_STRING;
+ Result->Value.string = NewHiiString (StringPtr, FormSet->HiiHandle);
+ } else {
+ Result->Type = EFI_IFR_TYPE_BUFFER;
+ Length0 = GetLengthForValue (&Value[0]);
+ Length1 = GetLengthForValue (&Value[1]);
+ Result->BufferLen = (UINT16)(Length0 + Length1);
+
+ Result->Buffer = AllocatePool (Result->BufferLen);
+ ASSERT (Result->Buffer != NULL);
+
+ TmpBuf = GetBufferForValue (&Value[0]);
+ ASSERT (TmpBuf != NULL);
+ CopyMem (Result->Buffer, TmpBuf, Length0);
+ TmpBuf = GetBufferForValue (&Value[1]);
+ ASSERT (TmpBuf != NULL);
+ CopyMem (&Result->Buffer[Length0], TmpBuf, Length1);
+ }
+
+Done:
+ if (Value[0].Buffer != NULL) {
+ FreePool (Value[0].Buffer);
+ }
+
+ if (Value[1].Buffer != NULL) {
+ FreePool (Value[1].Buffer);
+ }
+
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ if (StringPtr != NULL) {
+ FreePool (StringPtr);
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_MATCH.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMatch (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[2];
+ CHAR16 *String[2];
+ UINTN Index;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // String[0] - The string to search
+ // String[1] - pattern
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ Status = EFI_SUCCESS;
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ for (Index = 0; Index < 2; Index++) {
+ if (Value[Index].Type != EFI_IFR_TYPE_STRING) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ String[Index] = GetTokenString (Value[Index].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+ }
+
+ Result->Type = EFI_IFR_TYPE_BOOLEAN;
+ Result->Value.b = mUnicodeCollation->MetaiMatch (mUnicodeCollation, String[0], String[1]);
+
+Done:
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_MATCH2.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[in] SyntaxType Syntax type for match2.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMatch2 (
+ IN HII_FORMSET *FormSet,
+ IN EFI_GUID *SyntaxType,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[2];
+ CHAR16 *String[2];
+ UINTN Index;
+ UINTN GuidIndex;
+ EFI_HANDLE *HandleBuffer;
+ UINTN BufferSize;
+ EFI_REGULAR_EXPRESSION_PROTOCOL *RegularExpressionProtocol;
+ UINTN RegExSyntaxTypeListSize;
+ EFI_REGEX_SYNTAX_TYPE *RegExSyntaxTypeList;
+ UINTN CapturesCount;
+
+ if ((FormSet == NULL) || (SyntaxType == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // String[0] - The string to search
+ // String[1] - pattern
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ HandleBuffer = NULL;
+ RegExSyntaxTypeList = NULL;
+ Status = EFI_SUCCESS;
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ for (Index = 0; Index < 2; Index++) {
+ if (Value[Index].Type != EFI_IFR_TYPE_STRING) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ String[Index] = GetTokenString (Value[Index].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+ }
+
+ BufferSize = 0;
+ HandleBuffer = NULL;
+ Status = gBS->LocateHandle (
+ ByProtocol,
+ &gEfiRegularExpressionProtocolGuid,
+ NULL,
+ &BufferSize,
+ HandleBuffer
+ );
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ HandleBuffer = AllocatePool (BufferSize);
+ if (HandleBuffer == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+
+ Status = gBS->LocateHandle (
+ ByProtocol,
+ &gEfiRegularExpressionProtocolGuid,
+ NULL,
+ &BufferSize,
+ HandleBuffer
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ ASSERT (HandleBuffer != NULL);
+ for ( Index = 0; Index < BufferSize / sizeof (EFI_HANDLE); Index++) {
+ Status = gBS->HandleProtocol (
+ HandleBuffer[Index],
+ &gEfiRegularExpressionProtocolGuid,
+ (VOID **)&RegularExpressionProtocol
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ RegExSyntaxTypeListSize = 0;
+ RegExSyntaxTypeList = NULL;
+
+ Status = RegularExpressionProtocol->GetInfo (
+ RegularExpressionProtocol,
+ &RegExSyntaxTypeListSize,
+ RegExSyntaxTypeList
+ );
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ RegExSyntaxTypeList = AllocatePool (RegExSyntaxTypeListSize);
+ if (RegExSyntaxTypeList == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+
+ Status = RegularExpressionProtocol->GetInfo (
+ RegularExpressionProtocol,
+ &RegExSyntaxTypeListSize,
+ RegExSyntaxTypeList
+ );
+ } else if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ for (GuidIndex = 0; GuidIndex < RegExSyntaxTypeListSize / sizeof (EFI_GUID); GuidIndex++) {
+ if (CompareGuid (&RegExSyntaxTypeList[GuidIndex], SyntaxType)) {
+ //
+ // Find the match type, return the value.
+ //
+ Result->Type = EFI_IFR_TYPE_BOOLEAN;
+ Status = RegularExpressionProtocol->MatchString (
+ RegularExpressionProtocol,
+ String[0],
+ String[1],
+ SyntaxType,
+ &Result->Value.b,
+ NULL,
+ &CapturesCount
+ );
+ goto Done;
+ }
+ }
+
+ if (RegExSyntaxTypeList != NULL) {
+ FreePool (RegExSyntaxTypeList);
+ }
+ }
+
+ //
+ // Type specified by SyntaxType is not supported
+ // in any of the EFI_REGULAR_EXPRESSION_PROTOCOL instances.
+ //
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+
+Done:
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ if (RegExSyntaxTypeList != NULL) {
+ FreePool (RegExSyntaxTypeList);
+ }
+
+ if (HandleBuffer != NULL) {
+ FreePool (HandleBuffer);
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_FIND.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[in] Format Case sensitive or insensitive.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrFind (
+ IN HII_FORMSET *FormSet,
+ IN UINT8 Format,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[3];
+ CHAR16 *String[2];
+ UINTN Base;
+ CHAR16 *StringPtr;
+ UINTN Index;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (Value, sizeof (Value));
+
+ if (Format > EFI_IFR_FF_CASE_INSENSITIVE) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[2]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Base = (UINTN)Value[0].Value.u64;
+
+ //
+ // String[0] - sub-string
+ // String[1] - The string to search
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ for (Index = 0; Index < 2; Index++) {
+ if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ String[Index] = GetTokenString (Value[Index + 1].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+
+ if (Format == EFI_IFR_FF_CASE_INSENSITIVE) {
+ //
+ // Case insensitive, convert both string to upper case
+ //
+ IfrStrToUpper (String[Index]);
+ }
+ }
+
+ Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ if (Base >= StrLen (String[1])) {
+ Result->Value.u64 = 0xFFFFFFFFFFFFFFFFULL;
+ } else {
+ StringPtr = StrStr (String[1] + Base, String[0]);
+ Result->Value.u64 = (StringPtr == NULL) ? 0xFFFFFFFFFFFFFFFFULL : (StringPtr - String[1]);
+ }
+
+Done:
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_MID.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrMid (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[3];
+ CHAR16 *String;
+ UINTN Base;
+ UINTN Length;
+ CHAR16 *SubString;
+ UINT16 BufferLen;
+ UINT8 *Buffer;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[2]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Length = (UINTN)Value[0].Value.u64;
+
+ if (Value[1].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Base = (UINTN)Value[1].Value.u64;
+
+ if ((Value[2].Type != EFI_IFR_TYPE_STRING) && !IsTypeInBuffer (&Value[2])) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ if (Value[2].Type == EFI_IFR_TYPE_STRING) {
+ String = GetTokenString (Value[2].Value.string, FormSet->HiiHandle);
+ if (String == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ if ((Length == 0) || (Base >= StrLen (String))) {
+ SubString = gEmptyString;
+ } else {
+ SubString = String + Base;
+ if ((Base + Length) < StrLen (String)) {
+ SubString[Length] = L'\0';
+ }
+ }
+
+ Result->Type = EFI_IFR_TYPE_STRING;
+ Result->Value.string = NewHiiString (SubString, FormSet->HiiHandle);
+
+ FreePool (String);
+ } else {
+ BufferLen = GetLengthForValue (&Value[2]);
+ Buffer = GetBufferForValue (&Value[2]);
+
+ Result->Type = EFI_IFR_TYPE_BUFFER;
+ if ((Length == 0) || (Base >= BufferLen)) {
+ Result->BufferLen = 0;
+ Result->Buffer = NULL;
+ } else {
+ Result->BufferLen = (UINT16)((BufferLen - Base) < Length ? (BufferLen - Base) : Length);
+ Result->Buffer = AllocatePool (Result->BufferLen);
+ ASSERT (Result->Buffer != NULL);
+ CopyMem (Result->Buffer, &Buffer[Base], Result->BufferLen);
+ }
+
+ if (Value[2].Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Value[2].Buffer);
+ }
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_TOKEN.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrToken (
+ IN HII_FORMSET *FormSet,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[3];
+ CHAR16 *String[2];
+ UINTN Count;
+ CHAR16 *Delimiter;
+ CHAR16 *SubString;
+ CHAR16 *StringPtr;
+ UINTN Index;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[2]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Count = (UINTN)Value[0].Value.u64;
+
+ //
+ // String[0] - Delimiter
+ // String[1] - The string to search
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ for (Index = 0; Index < 2; Index++) {
+ if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ String[Index] = GetTokenString (Value[Index + 1].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+ }
+
+ Delimiter = String[0];
+ SubString = String[1];
+ while (Count > 0) {
+ SubString = StrStr (SubString, Delimiter);
+ if (SubString != NULL) {
+ //
+ // Skip over the delimiter
+ //
+ SubString = SubString + StrLen (Delimiter);
+ } else {
+ break;
+ }
+
+ Count--;
+ }
+
+ if (SubString == NULL) {
+ //
+ // nth delimited sub-string not found, push an empty string
+ //
+ SubString = gEmptyString;
+ } else {
+ //
+ // Put a NULL terminator for nth delimited sub-string
+ //
+ StringPtr = StrStr (SubString, Delimiter);
+ if (StringPtr != NULL) {
+ *StringPtr = L'\0';
+ }
+ }
+
+ Result->Type = EFI_IFR_TYPE_STRING;
+ Result->Value.string = NewHiiString (SubString, FormSet->HiiHandle);
+
+Done:
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ return Status;
+}
+
+/**
+ Evaluate opcode EFI_IFR_SPAN.
+
+ @param[in] FormSet Formset which contains this opcode.
+ @param[in] Flags FIRST_MATCHING or FIRST_NON_MATCHING.
+ @param[out] Result Evaluation result for this opcode.
+
+ @retval EFI_SUCCESS Opcode evaluation success.
+ @retval Other Opcode evaluation failed.
+
+**/
+EFI_STATUS
+IfrSpan (
+ IN HII_FORMSET *FormSet,
+ IN UINT8 Flags,
+ OUT EFI_HII_VALUE *Result
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_VALUE Value[3];
+ CHAR16 *String[2];
+ CHAR16 *Charset;
+ UINTN Base;
+ UINTN Index;
+ CHAR16 *StringPtr;
+ BOOLEAN Found;
+
+ if ((FormSet == NULL) || (Result == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (Value, sizeof (Value));
+
+ Status = PopExpression (&Value[0]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[1]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = PopExpression (&Value[2]);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Value[0].Type > EFI_IFR_TYPE_NUM_SIZE_64) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ return EFI_SUCCESS;
+ }
+
+ Base = (UINTN)Value[0].Value.u64;
+
+ //
+ // String[0] - Charset
+ // String[1] - The string to search
+ //
+ String[0] = NULL;
+ String[1] = NULL;
+ for (Index = 0; Index < 2; Index++) {
+ if (Value[Index + 1].Type != EFI_IFR_TYPE_STRING) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ String[Index] = GetTokenString (Value[Index + 1].Value.string, FormSet->HiiHandle);
+ if (String[Index] == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+ }
+
+ if (Base >= StrLen (String[1])) {
+ Result->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ Found = FALSE;
+ StringPtr = String[1] + Base;
+ Charset = String[0];
+ while (*StringPtr != 0 && !Found) {
+ Index = 0;
+ while (Charset[Index] != 0) {
+ if ((*StringPtr >= Charset[Index]) && (*StringPtr <= Charset[Index + 1])) {
+ if (Flags == EFI_IFR_FLAGS_FIRST_MATCHING) {
+ Found = TRUE;
+ break;
+ }
+ } else {
+ if (Flags == EFI_IFR_FLAGS_FIRST_NON_MATCHING) {
+ Found = TRUE;
+ break;
+ }
+ }
+
+ //
+ // Skip characters pair representing low-end of a range and high-end of a range
+ //
+ Index += 2;
+ }
+
+ if (!Found) {
+ StringPtr++;
+ }
+ }
+
+ Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ Result->Value.u64 = StringPtr - String[1];
+
+Done:
+ if (String[0] != NULL) {
+ FreePool (String[0]);
+ }
+
+ if (String[1] != NULL) {
+ FreePool (String[1]);
+ }
+
+ return Status;
+}
+
+/**
+ Get Expression given its RuleId.
+
+ @param[in] Form The form which contains this Expression.
+ @param[in] RuleId Id of this Expression.
+
+ @retval Pointer The Expression.
+ @retval NULL Specified Expression not found in the form.
+
+**/
+HII_EXPRESSION *
+RuleIdToExpression (
+ IN HII_FORM *Form,
+ IN UINT8 RuleId
+ )
+{
+ LIST_ENTRY *Link;
+ HII_EXPRESSION *Expression;
+
+ if (Form == NULL) {
+ return NULL;
+ }
+
+ Link = GetFirstNode (&Form->RuleListHead);
+ while (!IsNull (&Form->RuleListHead, Link)) {
+ Expression = HII_EXPRESSION_FROM_LINK (Link);
+
+ if ((Expression->Type == EFI_HII_EXPRESSION_RULE) && (Expression->ExtraData.RuleId == RuleId)) {
+ return Expression;
+ }
+
+ Link = GetNextNode (&Form->RuleListHead, Link);
+ }
+
+ return NULL;
+}
+
+/**
+ Locate the Unicode Collation Protocol interface for later use.
+
+ @retval EFI_SUCCESS Protocol interface initialize success.
+ @retval Other Protocol interface initialize failed.
+
+**/
+EFI_STATUS
+InitializeUnicodeCollationProtocol (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ if (mUnicodeCollation != NULL) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // BUGBUG: Proper implementation is to locate all Unicode Collation Protocol
+ // instances first and then select one which support English language.
+ // Current implementation just pick the first instance.
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiUnicodeCollation2ProtocolGuid,
+ NULL,
+ (VOID **)&mUnicodeCollation
+ );
+ return Status;
+}
+
+/**
+ Check whether the formset guid is in this Hii package list.
+
+ @param[in] HiiHandle The HiiHandle for this HII package list.
+ @param[in] FormSetGuid The formset guid for the request formset.
+
+ @retval TRUE Find the formset guid.
+ @retval FALSE Not found the formset guid.
+
+**/
+BOOLEAN
+IsFormsetGuidInHiiHandle (
+ IN EFI_HII_HANDLE HiiHandle,
+ IN EFI_GUID *FormSetGuid
+ )
+{
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINTN BufferSize;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER *PackageHeader;
+ UINT8 *Package;
+ UINT8 *OpCodeData;
+ EFI_STATUS Status;
+ BOOLEAN FindGuid;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ if (FormSetGuid == NULL) {
+ return FALSE;
+ }
+
+ BufferSize = 0;
+ HiiPackageList = NULL;
+ FindGuid = FALSE;
+
+ //
+ // Locate required Hii Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **)&HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return FALSE;
+ }
+
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ HiiPackageList = AllocatePool (BufferSize);
+ if (HiiPackageList == NULL) {
+ ASSERT (HiiPackageList != NULL);
+ return FALSE;
+ }
+
+ Status = HiiDatabase->ExportPackageLists (HiiDatabase, HiiHandle, &BufferSize, HiiPackageList);
+ } else {
+ //
+ // Fix coverity: 14253 Explicit null dereferenced.
+ // When calling ExportPackageLists with BufferSize = 0, only EFI_BUFFER_TOO_SMALL is expected.
+ // Otherwise, return FALSE immediately.
+ //
+ return FALSE;
+ }
+
+ if (EFI_ERROR (Status)) {
+ if (HiiPackageList != NULL) {
+ FreePool (HiiPackageList);
+ }
+
+ return FALSE;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ PackageListLength = HiiPackageList->PackageLength;
+
+ while (Offset < PackageListLength) {
+ Package = ((UINT8 *)HiiPackageList) + Offset;
+ PackageHeader = (EFI_HII_PACKAGE_HEADER *)Package;
+ Offset += PackageHeader->Length;
+
+ if (PackageHeader->Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search FormSet in this Form Package
+ //
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader->Length) {
+ OpCodeData = Package + Offset2;
+
+ if (((EFI_IFR_OP_HEADER *)OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ if (CompareGuid (FormSetGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
+ FindGuid = TRUE;
+ break;
+ }
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *)OpCodeData)->Length;
+ }
+ }
+
+ if (FindGuid) {
+ break;
+ }
+ }
+
+ FreePool (HiiPackageList);
+
+ return FindGuid;
+}
+
+/**
+ Find HII Handle in the HII database associated with given Device Path.
+
+ If DevicePath is NULL, then ASSERT.
+
+ @param[in] DevicePath Device Path associated with the HII package list
+ handle.
+ @param[in] FormsetGuid The formset guid for this formset.
+
+ @retval Handle HII package list Handle associated with the Device
+ Path.
+ @retval NULL Hii Package list handle is not found.
+
+**/
+EFI_HII_HANDLE
+DevicePathToHiiHandle (
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN EFI_GUID *FormsetGuid
+ )
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
+ UINTN Index;
+ EFI_HANDLE Handle;
+ EFI_HANDLE DriverHandle;
+ EFI_HII_HANDLE *HiiHandles;
+ EFI_HII_HANDLE HiiHandle;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+
+ if ((DevicePath == NULL) || (FormsetGuid == NULL)) {
+ return NULL;
+ }
+
+ TmpDevicePath = DevicePath;
+ //
+ // Locate Device Path Protocol handle buffer
+ //
+ Status = gBS->LocateDevicePath (
+ &gEfiDevicePathProtocolGuid,
+ &TmpDevicePath,
+ &DriverHandle
+ );
+ if (EFI_ERROR (Status) || !IsDevicePathEnd (TmpDevicePath)) {
+ return NULL;
+ }
+
+ //
+ // Locate required Hii Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ (VOID **)&HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return NULL;
+ }
+
+ //
+ // Retrieve all HII Handles from HII database
+ //
+ HiiHandles = HiiGetHiiHandles (NULL);
+ if (HiiHandles == NULL) {
+ return NULL;
+ }
+
+ //
+ // Search Hii Handle by Driver Handle
+ //
+ HiiHandle = NULL;
+ for (Index = 0; HiiHandles[Index] != NULL; Index++) {
+ Status = HiiDatabase->GetPackageListHandle (
+ HiiDatabase,
+ HiiHandles[Index],
+ &Handle
+ );
+ if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
+ if (IsFormsetGuidInHiiHandle (HiiHandles[Index], FormsetGuid)) {
+ HiiHandle = HiiHandles[Index];
+ break;
+ }
+
+ if (HiiHandle != NULL) {
+ break;
+ }
+ }
+ }
+
+ FreePool (HiiHandles);
+ return HiiHandle;
+}
+
+/**
+ Get question value from the predefined formset.
+
+ @param[in] DevicePath The driver's device path which produce the formset data.
+ @param[in] InputHiiHandle The hii handle associate with the formset data.
+ @param[in] FormSetGuid The formset guid which include the question.
+ @param[in] QuestionId The question id which need to get value from.
+ @param[out] Value The return data about question's value.
+
+ @retval TRUE Get the question value success.
+ @retval FALSE Get the question value failed.
+**/
+BOOLEAN
+GetQuestionValueFromForm (
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
+ IN EFI_HII_HANDLE InputHiiHandle,
+ IN EFI_GUID *FormSetGuid,
+ IN EFI_QUESTION_ID QuestionId,
+ OUT EFI_HII_VALUE *Value
+ )
+{
+ EFI_STATUS Status;
+ EFI_HII_HANDLE HiiHandle;
+ HII_STATEMENT *Question;
+ HII_FORMSET *FormSet;
+ HII_FORM *Form;
+ BOOLEAN GetTheVal;
+ LIST_ENTRY *Link;
+
+ //
+ // The input parameter DevicePath or InputHiiHandle must have one valid input.
+ //
+ if ((DevicePath == NULL) && (InputHiiHandle == NULL)) {
+ ASSERT (
+ (DevicePath != NULL && InputHiiHandle == NULL) ||
+ (DevicePath == NULL && InputHiiHandle != NULL)
+ );
+ return FALSE;
+ }
+
+ if ((FormSetGuid == NULL) || (Value == NULL)) {
+ return FALSE;
+ }
+
+ GetTheVal = TRUE;
+ HiiHandle = NULL;
+ Question = NULL;
+ Form = NULL;
+
+ //
+ // Get HiiHandle.
+ //
+ if (DevicePath != NULL) {
+ HiiHandle = DevicePathToHiiHandle (DevicePath, FormSetGuid);
+ if (HiiHandle == NULL) {
+ return FALSE;
+ }
+ } else {
+ HiiHandle = InputHiiHandle;
+ }
+
+ ASSERT (HiiHandle != NULL);
+
+ //
+ // Get the formset data include this question.
+ //
+ FormSet = AllocateZeroPool (sizeof (HII_FORMSET));
+ ASSERT (FormSet != NULL);
+
+ Status = CreateFormSetFromHiiHandle (HiiHandle, FormSetGuid, FormSet);
+ if (EFI_ERROR (Status)) {
+ GetTheVal = FALSE;
+ goto Done;
+ }
+
+ InitializeFormSet (FormSet);
+
+ //
+ // Base on the Question Id to get the question info.
+ //
+ Question = QuestionIdInFormset (FormSet, NULL, QuestionId);
+ if (Question == NULL) {
+ GetTheVal = FALSE;
+ goto Done;
+ }
+
+ //
+ // Search form in the formset scope
+ //
+ Link = GetFirstNode (&FormSet->FormListHead);
+ while (!IsNull (&FormSet->FormListHead, Link)) {
+ Form = HII_FORM_FROM_LINK (Link);
+
+ Question = QuestionIdInForm (Form, QuestionId);
+ if (Question != NULL) {
+ break;
+ }
+
+ Link = GetNextNode (&FormSet->FormListHead, Link);
+ Form = NULL;
+ }
+
+ ASSERT (Form != NULL);
+
+ //
+ // Get the question value.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ GetTheVal = FALSE;
+ goto Done;
+ }
+
+ CopyMem (Value, &Question->Value, sizeof (EFI_HII_VALUE));
+
+Done:
+ //
+ // Clean the formset structure and restore the global parameter.
+ //
+ if (FormSet != NULL) {
+ DestroyFormSet (FormSet);
+ }
+
+ return GetTheVal;
+}
+
+/**
+ Covert HII_STATEMENT_VALUE to EFI_HII_VALUE.
+
+ The HiiValue->Buffer is allocated from EFI boot services memory. It is the
+ responsibility of the caller to free the memory allocated.
+
+ @param[in] StatementValue Source to be converted.
+ @param[out] HiiValue The buffer that is converted from StatementValue
+
+ @retval EFI_SUCCESS Convert successfully.
+ @retval EFI_INVALID_PARAMETER StatementValue is NULL or HiiValue is NULL.
+
+**/
+EFI_STATUS
+HiiStatementValueToHiiValue (
+ IN HII_STATEMENT_VALUE *StatementValue,
+ OUT EFI_HII_VALUE *HiiValue
+ )
+{
+ if ((StatementValue == NULL) || (HiiValue == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (HiiValue, sizeof (EFI_HII_VALUE));
+
+ HiiValue->Type = StatementValue->Type;
+ HiiValue->BufferLen = StatementValue->BufferLen;
+ if ((StatementValue->Buffer != NULL) && (StatementValue->BufferLen > 0)) {
+ HiiValue->Buffer = AllocateCopyPool (HiiValue->BufferLen, StatementValue->Buffer);
+ }
+
+ CopyMem (&HiiValue->Value, &StatementValue->Value, sizeof (EFI_IFR_TYPE_VALUE));
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Release the buffer in EFI_HII_VALUE if the buffer is not NULL.
+
+ @param[in] HiiValue The buffer to be released.
+
+ @retval EFI_SUCCESS release HiiValue successfully.
+ @retval EFI_INVALID_PARAMETER HiiValue is NULL.
+
+**/
+EFI_STATUS
+ReleaseHiiValue (
+ IN EFI_HII_VALUE *HiiValue
+ )
+{
+ if (HiiValue == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (HiiValue->Buffer == NULL) {
+ return EFI_SUCCESS;
+ }
+
+ FreePool (HiiValue->Buffer);
+ ZeroMem (HiiValue, sizeof (EFI_HII_VALUE));
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Evaluate the result of a HII expression.
+
+ If Expression is NULL, then ASSERT.
+
+ @param[in] FormSet FormSet associated with this expression.
+ @param[in] Form Form associated with this expression.
+ @param[in,out] Expression Expression to be evaluated.
+
+ @retval EFI_SUCCESS The expression evaluated successfully.
+ @retval EFI_NOT_FOUND The Question which referenced by a QuestionId
+ could not be found.
+ @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the
+ stack.
+ @retval EFI_ACCESS_DENIED The pop operation underflowed the stack.
+ @retval EFI_INVALID_PARAMETER Syntax error with the Expression.
+ @retval EFI_INVALID_PARAMETER Formset, Form or Expression is NULL.
+
+**/
+EFI_STATUS
+EvaluateHiiExpression (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN OUT HII_EXPRESSION *Expression
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_EXPRESSION_OPCODE *OpCode;
+ HII_STATEMENT *Question;
+ HII_STATEMENT *Question2;
+ UINT16 Index;
+ EFI_HII_VALUE Data1;
+ EFI_HII_VALUE Data2;
+ EFI_HII_VALUE Data3;
+ HII_EXPRESSION *RuleExpression;
+ EFI_HII_VALUE *Value;
+ INTN Result;
+ CHAR16 *StrPtr;
+ CHAR16 *NameValue;
+ UINT32 TempValue;
+ LIST_ENTRY *SubExpressionLink;
+ HII_EXPRESSION *SubExpression;
+ UINTN StackOffset;
+ UINTN TempLength;
+ CHAR16 TempStr[5];
+ UINT8 DigitUint8;
+ UINT8 *TempBuffer;
+ EFI_TIME EfiTime;
+ EFI_HII_VALUE QuestionVal;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *PathFromText;
+
+ if ((FormSet == NULL) || (Form == NULL) || (Expression == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ StrPtr = NULL;
+ DevicePath = NULL;
+ PathFromText = NULL;
+
+ //
+ // Save current stack offset.
+ //
+ StackOffset = SaveExpressionEvaluationStackOffset ();
+
+ ASSERT (Expression != NULL);
+ Expression->Result.Type = EFI_IFR_TYPE_OTHER;
+
+ Link = GetFirstNode (&Expression->OpCodeListHead);
+ while (!IsNull (&Expression->OpCodeListHead, Link)) {
+ OpCode = HII_EXPRESSION_OPCODE_FROM_LINK (Link);
+
+ Link = GetNextNode (&Expression->OpCodeListHead, Link);
+
+ ZeroMem (&Data1, sizeof (EFI_HII_VALUE));
+ ZeroMem (&Data2, sizeof (EFI_HII_VALUE));
+ ZeroMem (&Data3, sizeof (EFI_HII_VALUE));
+
+ Value = &Data3;
+ Value->Type = EFI_IFR_TYPE_BOOLEAN;
+ Status = EFI_SUCCESS;
+
+ switch (OpCode->Operand) {
+ //
+ // Built-in functions
+ //
+ case EFI_IFR_EQ_ID_VAL_OP:
+ Question = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdValData.QuestionId);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question->Value, &Data1);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = CompareHiiValue (&Data1, &OpCode->ExtraData.EqIdValData.Value, &Result, NULL);
+ ReleaseHiiValue (&Data1);
+ if (Status == EFI_UNSUPPORTED) {
+ Status = EFI_SUCCESS;
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Value->Value.b = (BOOLEAN)((Result == 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_EQ_ID_ID_OP:
+ Question = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdIdData.QuestionId1);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question->Value, &Data1);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Question2 = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdIdData.QuestionId2);
+ if (Question2 == NULL) {
+ ReleaseHiiValue (&Data1);
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question2, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = HiiStatementValueToHiiValue (&Question2->Value, &Data2);
+ if (EFI_ERROR (Status)) {
+ ReleaseHiiValue (&Data1);
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = CompareHiiValue (&Data1, &Data2, &Result, FormSet->HiiHandle);
+ ReleaseHiiValue (&Data1);
+ ReleaseHiiValue (&Data2);
+ if (Status == EFI_UNSUPPORTED) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ break;
+ }
+
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Value->Value.b = (BOOLEAN)((Result == 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_EQ_ID_VAL_LIST_OP:
+ Question = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.EqIdListData.QuestionId);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Value.b = FALSE;
+ for (Index = 0; Index < OpCode->ExtraData.EqIdListData.ListLength; Index++) {
+ if (Question->Value.Value.u16 == OpCode->ExtraData.EqIdListData.ValueList[Index]) {
+ Value->Value.b = TRUE;
+ break;
+ }
+ }
+
+ break;
+
+ case EFI_IFR_DUP_OP:
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PushExpression (Value);
+ break;
+
+ case EFI_IFR_QUESTION_REF1_OP:
+ case EFI_IFR_THIS_OP:
+ Question = QuestionIdInFormset (FormSet, Form, OpCode->ExtraData.QuestionRef1Data.QuestionId);
+ if (Question == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ break;
+
+ case EFI_IFR_SECURITY_OP:
+ Value->Value.b = CheckUserPrivilege (&OpCode->ExtraData.Guid);
+ break;
+
+ case EFI_IFR_GET_OP:
+ //
+ // Get Value from VarStore buffer, EFI VarStore, Name/Value VarStore.
+ //
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ Value->Value.u8 = 0;
+ if (OpCode->ExtraData.GetSetData.VarStorage != NULL) {
+ switch (OpCode->ExtraData.GetSetData.VarStorage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ //
+ // Get value from Edit Buffer
+ //
+ Value->Type = OpCode->ExtraData.GetSetData.ValueType;
+ CopyMem (&Value->Value, OpCode->ExtraData.GetSetData.VarStorage->EditBuffer + OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, OpCode->ExtraData.GetSetData.ValueWidth);
+ break;
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ if (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_STRING) {
+ //
+ // Get value from string except for STRING value.
+ //
+ Status = GetValueByName (OpCode->ExtraData.GetSetData.VarStorage, OpCode->ExtraData.GetSetData.ValueName, &StrPtr);
+ if (!EFI_ERROR (Status)) {
+ ASSERT (StrPtr != NULL);
+ TempLength = StrLen (StrPtr);
+ if (OpCode->ExtraData.GetSetData.ValueWidth >= ((TempLength + 1) / 2)) {
+ Value->Type = OpCode->ExtraData.GetSetData.ValueType;
+ TempBuffer = (UINT8 *)&Value->Value;
+ ZeroMem (TempStr, sizeof (TempStr));
+ for (Index = 0; Index < TempLength; Index++) {
+ TempStr[0] = StrPtr[TempLength - Index - 1];
+ DigitUint8 = (UINT8)StrHexToUint64 (TempStr);
+ if ((Index & 1) == 0) {
+ TempBuffer[Index/2] = DigitUint8;
+ } else {
+ TempBuffer[Index/2] = (UINT8)((DigitUint8 << 4) + TempBuffer[Index/2]);
+ }
+ }
+ }
+ }
+ }
+
+ break;
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ //
+ // Get value from variable.
+ //
+ TempLength = OpCode->ExtraData.GetSetData.ValueWidth;
+ Value->Type = OpCode->ExtraData.GetSetData.ValueType;
+ Status = gRT->GetVariable (
+ OpCode->ExtraData.GetSetData.ValueName,
+ &OpCode->ExtraData.GetSetData.VarStorage->Guid,
+ NULL,
+ &TempLength,
+ &Value->Value
+ );
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ Value->Value.u8 = 0;
+ }
+
+ break;
+ default:
+ //
+ // Not recognize storage.
+ //
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+ } else {
+ //
+ // For Time/Date Data
+ //
+ if ((OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_DATE) && (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_TIME)) {
+ //
+ // Only support Data/Time data when storage doesn't exist.
+ //
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+
+ Status = gRT->GetTime (&EfiTime, NULL);
+ if (!EFI_ERROR (Status)) {
+ if (OpCode->ExtraData.GetSetData.ValueType == EFI_IFR_TYPE_DATE) {
+ switch (OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset) {
+ case 0x00:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;
+ Value->Value.u16 = EfiTime.Year;
+ break;
+ case 0x02:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ Value->Value.u8 = EfiTime.Month;
+ break;
+ case 0x03:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ Value->Value.u8 = EfiTime.Day;
+ break;
+ default:
+ //
+ // Invalid Date field.
+ //
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+ } else {
+ switch (OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset) {
+ case 0x00:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ Value->Value.u8 = EfiTime.Hour;
+ break;
+ case 0x01:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ Value->Value.u8 = EfiTime.Minute;
+ break;
+ case 0x02:
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ Value->Value.u8 = EfiTime.Second;
+ break;
+ default:
+ //
+ // Invalid Time field.
+ //
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+ }
+ }
+ }
+
+ break;
+
+ case EFI_IFR_QUESTION_REF3_OP:
+ //
+ // EFI_IFR_QUESTION_REF3
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Validate the expression value
+ //
+ if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (OpCode->ExtraData.QuestionRef3Data.DevicePath != 0) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+
+ Status = gBS->LocateProtocol (
+ &gEfiDevicePathFromTextProtocolGuid,
+ NULL,
+ (VOID **)&PathFromText
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ StrPtr = GetTokenString (OpCode->ExtraData.QuestionRef3Data.DevicePath, FormSet->HiiHandle);
+ if ((StrPtr != NULL) && (PathFromText != NULL)) {
+ DevicePath = PathFromText->ConvertTextToDevicePath (StrPtr);
+ if ((DevicePath != NULL) && GetQuestionValueFromForm (DevicePath, NULL, &OpCode->ExtraData.Guid, Value->Value.u16, &QuestionVal)) {
+ Value = &QuestionVal;
+ }
+
+ if (DevicePath != NULL) {
+ FreePool (DevicePath);
+ }
+ }
+
+ if (StrPtr != NULL) {
+ FreePool (StrPtr);
+ }
+ } else if (IsZeroGuid (&OpCode->ExtraData.Guid)) {
+ if (!GetQuestionValueFromForm (NULL, FormSet->HiiHandle, &OpCode->ExtraData.Guid, Value->Value.u16, &QuestionVal)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value = &QuestionVal;
+ } else {
+ Question = QuestionIdInFormset (FormSet, Form, Value->Value.u16);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // push the questions' value on to the expression stack
+ //
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ }
+
+ break;
+
+ case EFI_IFR_RULE_REF_OP:
+ //
+ // Find expression for this rule
+ //
+ RuleExpression = RuleIdToExpression (Form, OpCode->ExtraData.RuleId);
+ if (RuleExpression == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Evaluate this rule expression
+ //
+ Status = EvaluateHiiExpression (FormSet, Form, RuleExpression);
+ if (EFI_ERROR (Status) || (RuleExpression->Result.Type == EFI_IFR_TYPE_UNDEFINED)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value = &RuleExpression->Result;
+ break;
+
+ case EFI_IFR_STRING_REF1_OP:
+ Value->Type = EFI_IFR_TYPE_STRING;
+ Value->Value.string = OpCode->ExtraData.Value.Value.string;
+ break;
+
+ //
+ // Constant
+ //
+ case EFI_IFR_TRUE_OP:
+ case EFI_IFR_FALSE_OP:
+ case EFI_IFR_ONE_OP:
+ case EFI_IFR_ONES_OP:
+ case EFI_IFR_UINT8_OP:
+ case EFI_IFR_UINT16_OP:
+ case EFI_IFR_UINT32_OP:
+ case EFI_IFR_UINT64_OP:
+ case EFI_IFR_UNDEFINED_OP:
+ case EFI_IFR_VERSION_OP:
+ case EFI_IFR_ZERO_OP:
+ Value = &OpCode->ExtraData.Value;
+ break;
+
+ //
+ // unary-op
+ //
+ case EFI_IFR_LENGTH_OP:
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if ((Value->Type != EFI_IFR_TYPE_STRING) && !IsTypeInBuffer (Value)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (Value->Type == EFI_IFR_TYPE_STRING) {
+ StrPtr = GetTokenString (Value->Value.string, FormSet->HiiHandle);
+ if (StrPtr == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ Value->Value.u64 = StrLen (StrPtr);
+ FreePool (StrPtr);
+ } else {
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ Value->Value.u64 = GetLengthForValue (Value);
+ FreePool (Value->Buffer);
+ }
+
+ break;
+
+ case EFI_IFR_NOT_OP:
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Value->Type != EFI_IFR_TYPE_BOOLEAN) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Value.b = (BOOLEAN)(!Value->Value.b);
+ break;
+
+ case EFI_IFR_QUESTION_REF2_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Validate the expression value
+ //
+ if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Question = QuestionIdInFormset (FormSet, Form, Value->Value.u16);
+ if (Question == NULL) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ //
+ // Load value from storage.
+ //
+ Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
+ if (EFI_ERROR (Status)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value = (EFI_HII_VALUE *)&Question->Value;
+ break;
+
+ case EFI_IFR_STRING_REF2_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Validate the expression value
+ //
+ if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Type = EFI_IFR_TYPE_STRING;
+ StrPtr = GetTokenString (Value->Value.u16, FormSet->HiiHandle);
+ if (StrPtr == NULL) {
+ //
+ // If String not exit, push an empty string
+ //
+ Value->Value.string = NewHiiString (gEmptyString, FormSet->HiiHandle);
+ } else {
+ Index = (UINT16)Value->Value.u64;
+ Value->Value.string = Index;
+ FreePool (StrPtr);
+ }
+
+ break;
+
+ case EFI_IFR_TO_BOOLEAN_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Convert an expression to a Boolean
+ //
+ if (Value->Type <= EFI_IFR_TYPE_DATE) {
+ //
+ // When converting from an unsigned integer, zero will be converted to
+ // FALSE and any other value will be converted to TRUE.
+ //
+ Value->Value.b = (BOOLEAN)(HiiValueToUINT64 (Value) != 0);
+
+ Value->Type = EFI_IFR_TYPE_BOOLEAN;
+ } else if (Value->Type == EFI_IFR_TYPE_STRING) {
+ //
+ // When converting from a string, if case-insensitive compare
+ // with "true" is True, then push True. If a case-insensitive compare
+ // with "false" is True, then push False. Otherwise, push Undefined.
+ //
+ StrPtr = GetTokenString (Value->Value.string, FormSet->HiiHandle);
+ if (StrPtr == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ IfrStrToUpper (StrPtr);
+ if (StrCmp (StrPtr, L"TRUE") == 0) {
+ Value->Value.b = TRUE;
+ Value->Type = EFI_IFR_TYPE_BOOLEAN;
+ } else if (StrCmp (StrPtr, L"FALSE") == 0) {
+ Value->Value.b = FALSE;
+ Value->Type = EFI_IFR_TYPE_BOOLEAN;
+ } else {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ }
+
+ FreePool (StrPtr);
+ } else if (Value->Type == EFI_IFR_TYPE_BUFFER) {
+ //
+ // When converting from a buffer, if the buffer is all zeroes,
+ // then push False. Otherwise push True.
+ //
+ for (Index = 0; Index < Value->BufferLen; Index++) {
+ if (Value->Buffer[Index] != 0) {
+ break;
+ }
+ }
+
+ if (Index >= Value->BufferLen) {
+ Value->Value.b = FALSE;
+ } else {
+ Value->Value.b = TRUE;
+ }
+
+ Value->Type = EFI_IFR_TYPE_BOOLEAN;
+ FreePool (Value->Buffer);
+ }
+
+ break;
+
+ case EFI_IFR_TO_STRING_OP:
+ Status = IfrToString (FormSet, OpCode->ExtraData.Format, Value);
+ break;
+
+ case EFI_IFR_TO_UINT_OP:
+ Status = IfrToUint (FormSet, Value);
+ break;
+
+ case EFI_IFR_TO_LOWER_OP:
+ case EFI_IFR_TO_UPPER_OP:
+ Status = InitializeUnicodeCollationProtocol ();
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Value->Type != EFI_IFR_TYPE_STRING) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ StrPtr = GetTokenString (Value->Value.string, FormSet->HiiHandle);
+ if (StrPtr == NULL) {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+
+ if (OpCode->Operand == EFI_IFR_TO_LOWER_OP) {
+ mUnicodeCollation->StrLwr (mUnicodeCollation, StrPtr);
+ } else {
+ mUnicodeCollation->StrUpr (mUnicodeCollation, StrPtr);
+ }
+
+ Value->Value.string = NewHiiString (StrPtr, FormSet->HiiHandle);
+ FreePool (StrPtr);
+ break;
+
+ case EFI_IFR_BITWISE_NOT_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Value->Type > EFI_IFR_TYPE_DATE) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+ Value->Value.u64 = ~HiiValueToUINT64(Value);
+ break;
+
+ case EFI_IFR_SET_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Data1.Type = EFI_IFR_TYPE_BOOLEAN;
+ Data1.Value.b = FALSE;
+ //
+ // Set value to var storage buffer
+ //
+ if (OpCode->ExtraData.GetSetData.VarStorage != NULL) {
+ switch (OpCode->ExtraData.GetSetData.VarStorage->Type) {
+ case EFI_HII_VARSTORE_BUFFER:
+ case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
+ CopyMem (OpCode->ExtraData.GetSetData.VarStorage->EditBuffer + OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset, &Value->Value, OpCode->ExtraData.GetSetData.ValueWidth);
+ Data1.Value.b = TRUE;
+ break;
+ case EFI_HII_VARSTORE_NAME_VALUE:
+ if (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_STRING) {
+ NameValue = AllocatePool ((OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1) * sizeof (CHAR16));
+ ASSERT (NameValue != NULL);
+ //
+ // Convert Buffer to Hex String
+ //
+ TempBuffer = (UINT8 *)&Value->Value + OpCode->ExtraData.GetSetData.ValueWidth - 1;
+ StrPtr = NameValue;
+ for (Index = 0; Index < OpCode->ExtraData.GetSetData.ValueWidth; Index++, TempBuffer--) {
+ UnicodeValueToStringS (
+ StrPtr,
+ (OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1) * sizeof (CHAR16) - ((UINTN)StrPtr - (UINTN)NameValue),
+ PREFIX_ZERO | RADIX_HEX,
+ *TempBuffer,
+ 2
+ );
+ StrPtr += StrnLenS (StrPtr, OpCode->ExtraData.GetSetData.ValueWidth * 2 + 1 - ((UINTN)StrPtr - (UINTN)NameValue) / sizeof (CHAR16));
+ }
+
+ Status = SetValueByName (OpCode->ExtraData.GetSetData.VarStorage, OpCode->ExtraData.GetSetData.ValueName, NameValue, NULL);
+ FreePool (NameValue);
+ if (!EFI_ERROR (Status)) {
+ Data1.Value.b = TRUE;
+ }
+ }
+
+ break;
+ case EFI_HII_VARSTORE_EFI_VARIABLE:
+ Status = gRT->SetVariable (
+ OpCode->ExtraData.GetSetData.ValueName,
+ &OpCode->ExtraData.GetSetData.VarStorage->Guid,
+ OpCode->ExtraData.GetSetData.VarStorage->Attributes,
+ OpCode->ExtraData.GetSetData.ValueWidth,
+ &Value->Value
+ );
+ if (!EFI_ERROR (Status)) {
+ Data1.Value.b = TRUE;
+ }
+
+ break;
+ default:
+ //
+ // Not recognize storage.
+ //
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+ } else {
+ //
+ // For Time/Date Data
+ //
+ if ((OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_DATE) && (OpCode->ExtraData.GetSetData.ValueType != EFI_IFR_TYPE_TIME)) {
+ //
+ // Only support Data/Time data when storage doesn't exist.
+ //
+ Status = EFI_UNSUPPORTED;
+ goto Done;
+ }
+
+ Status = gRT->GetTime (&EfiTime, NULL);
+ if (!EFI_ERROR (Status)) {
+ if (OpCode->ExtraData.GetSetData.ValueType == EFI_IFR_TYPE_DATE) {
+ switch (OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset) {
+ case 0x00:
+ EfiTime.Year = Value->Value.u16;
+ break;
+ case 0x02:
+ EfiTime.Month = Value->Value.u8;
+ break;
+ case 0x03:
+ EfiTime.Day = Value->Value.u8;
+ break;
+ default:
+ //
+ // Invalid Date field.
+ //
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+ } else {
+ switch (OpCode->ExtraData.GetSetData.VarStoreInfo.VarOffset) {
+ case 0x00:
+ EfiTime.Hour = Value->Value.u8;
+ break;
+ case 0x01:
+ EfiTime.Minute = Value->Value.u8;
+ break;
+ case 0x02:
+ EfiTime.Second = Value->Value.u8;
+ break;
+ default:
+ //
+ // Invalid Time field.
+ //
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+ }
+
+ Status = gRT->SetTime (&EfiTime);
+ if (!EFI_ERROR (Status)) {
+ Data1.Value.b = TRUE;
+ }
+ }
+ }
+
+ Value = &Data1;
+ break;
+
+ //
+ // binary-op
+ //
+ case EFI_IFR_ADD_OP:
+ case EFI_IFR_SUBTRACT_OP:
+ case EFI_IFR_MULTIPLY_OP:
+ case EFI_IFR_DIVIDE_OP:
+ case EFI_IFR_MODULO_OP:
+ case EFI_IFR_BITWISE_AND_OP:
+ case EFI_IFR_BITWISE_OR_OP:
+ case EFI_IFR_SHIFT_LEFT_OP:
+ case EFI_IFR_SHIFT_RIGHT_OP:
+ //
+ // Pop an expression from the expression stack
+ //
+ Status = PopExpression (&Data2);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Pop another expression from the expression stack
+ //
+ Status = PopExpression (&Data1);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Data2.Type > EFI_IFR_TYPE_DATE) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (Data1.Type > EFI_IFR_TYPE_DATE) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;
+
+ switch (OpCode->Operand) {
+ case EFI_IFR_ADD_OP:
+ Value->Value.u64 = HiiValueToUINT64 (&Data1) + HiiValueToUINT64 (&Data2);
+ break;
+
+ case EFI_IFR_SUBTRACT_OP:
+ Value->Value.u64 = HiiValueToUINT64 (&Data1) - HiiValueToUINT64 (&Data2);
+ break;
+
+ case EFI_IFR_MULTIPLY_OP:
+ Value->Value.u64 = MultU64x32 (HiiValueToUINT64 (&Data1), (UINT32)HiiValueToUINT64 (&Data2));
+ break;
+
+ case EFI_IFR_DIVIDE_OP:
+ Value->Value.u64 = DivU64x32 (HiiValueToUINT64 (&Data1), (UINT32)HiiValueToUINT64 (&Data2));
+ break;
+
+ case EFI_IFR_MODULO_OP:
+ DivU64x32Remainder (HiiValueToUINT64 (&Data1), (UINT32)HiiValueToUINT64 (&Data2), &TempValue);
+ Value->Value.u64 = TempValue;
+ break;
+
+ case EFI_IFR_BITWISE_AND_OP:
+ Value->Value.u64 = HiiValueToUINT64 (&Data1) & HiiValueToUINT64 (&Data2);
+ break;
+
+ case EFI_IFR_BITWISE_OR_OP:
+ Value->Value.u64 = HiiValueToUINT64 (&Data1) | HiiValueToUINT64 (&Data2);
+ break;
+
+ case EFI_IFR_SHIFT_LEFT_OP:
+ Value->Value.u64 = LShiftU64 (HiiValueToUINT64 (&Data1), (UINTN)HiiValueToUINT64 (&Data2));
+ break;
+
+ case EFI_IFR_SHIFT_RIGHT_OP:
+ Value->Value.u64 = RShiftU64 (HiiValueToUINT64 (&Data1), (UINTN)HiiValueToUINT64 (&Data2));
+ break;
+
+ default:
+ break;
+ }
+
+ break;
+
+ case EFI_IFR_AND_OP:
+ case EFI_IFR_OR_OP:
+ //
+ // Two Boolean operator
+ //
+ Status = PopExpression (&Data2);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Pop another expression from the expression stack
+ //
+ Status = PopExpression (&Data1);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Data2.Type != EFI_IFR_TYPE_BOOLEAN) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (OpCode->Operand == EFI_IFR_AND_OP) {
+ Value->Value.b = (BOOLEAN)(Data1.Value.b && Data2.Value.b);
+ } else {
+ Value->Value.b = (BOOLEAN)(Data1.Value.b || Data2.Value.b);
+ }
+
+ break;
+
+ case EFI_IFR_EQUAL_OP:
+ case EFI_IFR_NOT_EQUAL_OP:
+ case EFI_IFR_GREATER_EQUAL_OP:
+ case EFI_IFR_GREATER_THAN_OP:
+ case EFI_IFR_LESS_EQUAL_OP:
+ case EFI_IFR_LESS_THAN_OP:
+ //
+ // Compare two integer, string, boolean or date/time
+ //
+ Status = PopExpression (&Data2);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Pop another expression from the expression stack
+ //
+ Status = PopExpression (&Data1);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if ((Data2.Type > EFI_IFR_TYPE_BOOLEAN) &&
+ (Data2.Type != EFI_IFR_TYPE_STRING) &&
+ !IsTypeInBuffer (&Data2))
+ {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if ((Data1.Type > EFI_IFR_TYPE_BOOLEAN) &&
+ (Data1.Type != EFI_IFR_TYPE_STRING) &&
+ !IsTypeInBuffer (&Data1))
+ {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ Status = CompareHiiValue (&Data1, &Data2, &Result, FormSet->HiiHandle);
+ if (Data1.Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Data1.Buffer);
+ }
+
+ if (Data2.Type == EFI_IFR_TYPE_BUFFER) {
+ FreePool (Data2.Buffer);
+ }
+
+ if (Status == EFI_UNSUPPORTED) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ Status = EFI_SUCCESS;
+ break;
+ }
+
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ switch (OpCode->Operand) {
+ case EFI_IFR_EQUAL_OP:
+ Value->Value.b = (BOOLEAN)((Result == 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_NOT_EQUAL_OP:
+ Value->Value.b = (BOOLEAN)((Result != 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_GREATER_EQUAL_OP:
+ Value->Value.b = (BOOLEAN)((Result >= 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_GREATER_THAN_OP:
+ Value->Value.b = (BOOLEAN)((Result > 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_LESS_EQUAL_OP:
+ Value->Value.b = (BOOLEAN)((Result <= 0) ? TRUE : FALSE);
+ break;
+
+ case EFI_IFR_LESS_THAN_OP:
+ Value->Value.b = (BOOLEAN)((Result < 0) ? TRUE : FALSE);
+ break;
+
+ default:
+ break;
+ }
+
+ break;
+
+ case EFI_IFR_MATCH_OP:
+ Status = InitializeUnicodeCollationProtocol ();
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = IfrMatch (FormSet, Value);
+ break;
+
+ case EFI_IFR_MATCH2_OP:
+ Status = IfrMatch2 (FormSet, &OpCode->ExtraData.Guid, Value);
+ break;
+
+ case EFI_IFR_CATENATE_OP:
+ Status = IfrCatenate (FormSet, Value);
+ break;
+
+ //
+ // ternary-op
+ //
+ case EFI_IFR_CONDITIONAL_OP:
+ //
+ // Pop third expression from the expression stack
+ //
+ Status = PopExpression (&Data3);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Pop second expression from the expression stack
+ //
+ Status = PopExpression (&Data2);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Pop first expression from the expression stack
+ //
+ Status = PopExpression (&Data1);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ break;
+ }
+
+ if (Data1.Value.b) {
+ Value = &Data3;
+ } else {
+ Value = &Data2;
+ }
+
+ break;
+
+ case EFI_IFR_FIND_OP:
+ Status = IfrFind (FormSet, OpCode->ExtraData.Format, Value);
+ break;
+
+ case EFI_IFR_MID_OP:
+ Status = IfrMid (FormSet, Value);
+ break;
+
+ case EFI_IFR_TOKEN_OP:
+ Status = IfrToken (FormSet, Value);
+ break;
+
+ case EFI_IFR_SPAN_OP:
+ Status = IfrSpan (FormSet, OpCode->ExtraData.Flags, Value);
+ break;
+
+ case EFI_IFR_MAP_OP:
+ //
+ // Pop the check value
+ //
+ Status = PopExpression (&Data1);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Check MapExpression list is valid.
+ //
+ if (OpCode->MapExpressionList.ForwardLink == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ //
+ // Go through map expression list.
+ //
+ SubExpressionLink = GetFirstNode (&OpCode->MapExpressionList);
+ while (!IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
+ SubExpression = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ //
+ // Evaluate the first expression in this pair.
+ //
+ Status = EvaluateHiiExpression (FormSet, Form, SubExpression);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Compare the expression value with current value
+ //
+ if ((CompareHiiValue (&Data1, &SubExpression->Result, &Result, NULL) == EFI_SUCCESS) && (Result == 0)) {
+ //
+ // Try get the map value.
+ //
+ SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
+ if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ SubExpression = HII_EXPRESSION_FROM_LINK (SubExpressionLink);
+ Status = EvaluateHiiExpression (FormSet, Form, SubExpression);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Value = &SubExpression->Result;
+ break;
+ }
+
+ //
+ // Skip the second expression on this pair.
+ //
+ SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
+ if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ //
+ // Goto the first expression on next pair.
+ //
+ SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);
+ }
+
+ //
+ // No map value is found.
+ //
+ if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {
+ Value->Type = EFI_IFR_TYPE_UNDEFINED;
+ Value->Value.u8 = 0;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ if (EFI_ERROR (Status) || (Value->Type == EFI_IFR_TYPE_UNDEFINED)) {
+ goto Done;
+ }
+
+ Status = PushExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ }
+
+ //
+ // Pop the final result from expression stack
+ //
+ Value = &Data1;
+ Status = PopExpression (Value);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // After evaluating an expression, there should be only one value left on the expression stack
+ //
+ if (PopExpression (Value) != EFI_ACCESS_DENIED) {
+ Status = EFI_INVALID_PARAMETER;
+ }
+
+Done:
+ RestoreExpressionEvaluationStackOffset (StackOffset);
+ if (!EFI_ERROR (Status)) {
+ CopyMem (&Expression->Result, Value, sizeof (EFI_HII_VALUE));
+ }
+
+ return Status;
+}
+
+/**
+ Set value of a data element in an Array by its Index.
+
+ @param[in] Array The data array.
+ @param[in] Type Type of the data in this array.
+ @param[in] Index Zero based index for data in this array.
+ @param[in] Value The value to be set.
+
+**/
+VOID
+SetArrayData (
+ IN VOID *Array,
+ IN UINT8 Type,
+ IN UINTN Index,
+ IN UINT64 Value
+ )
+{
+ ASSERT (Array != NULL);
+
+ switch (Type) {
+ case EFI_IFR_TYPE_NUM_SIZE_8:
+ *(((UINT8 *)Array) + Index) = (UINT8)Value;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_16:
+ *(((UINT16 *)Array) + Index) = (UINT16)Value;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_32:
+ *(((UINT32 *)Array) + Index) = (UINT32)Value;
+ break;
+
+ case EFI_IFR_TYPE_NUM_SIZE_64:
+ *(((UINT64 *)Array) + Index) = (UINT64)Value;
+ break;
+
+ default:
+ break;
+ }
+}
+
+/**
+ Search an Option of a Question by its value.
+
+ @param[in] Question The Question
+ @param[in] OptionValue Value for Option to be searched.
+
+ @retval Pointer Pointer to the found Option.
+ @retval NULL Option not found.
+
+**/
+HII_QUESTION_OPTION *
+ValueToOption (
+ IN HII_STATEMENT *Question,
+ IN HII_STATEMENT_VALUE *OptionValue
+ )
+{
+ LIST_ENTRY *Link;
+ HII_QUESTION_OPTION *Option;
+ EFI_HII_VALUE Data1;
+ EFI_HII_VALUE Data2;
+ INTN Result;
+ EFI_STATUS Status;
+
+ Result = 0;
+ ZeroMem (&Data1, sizeof (EFI_HII_VALUE));
+ ZeroMem (&Data2, sizeof (EFI_HII_VALUE));
+
+ Status = HiiStatementValueToHiiValue (OptionValue, &Data1);
+ ASSERT_EFI_ERROR (Status);
+
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ Option = HII_QUESTION_OPTION_FROM_LINK (Link);
+
+ Status = HiiStatementValueToHiiValue (&Option->Value, &Data2);
+ ASSERT_EFI_ERROR (Status);
+
+ if ((CompareHiiValue (&Data1, &Data2, &Result, NULL) == EFI_SUCCESS) && (Result == 0)) {
+ //
+ // Check the suppressif condition, only a valid option can be return.
+ //
+ if ((Option->SuppressExpression == NULL) ||
+ ((EvaluateExpressionList (Option->SuppressExpression, FALSE, NULL, NULL) == ExpressFalse)))
+ {
+ return Option;
+ }
+ }
+
+ Link = GetNextNode (&Question->OptionListHead, Link);
+ }
+
+ return NULL;
+}
+
+/**
+ Find the point in the ConfigResp string for this question.
+
+ @param[in] Question The question.
+ @param[in] ConfigResp Get ConfigResp string.
+
+ @retval point to the offset where is for this question.
+
+**/
+CHAR16 *
+GetOffsetFromConfigResp (
+ IN HII_STATEMENT *Question,
+ IN CHAR16 *ConfigResp
+ )
+{
+ CHAR16 *RequestElement;
+ CHAR16 *BlockData;
+
+ //
+ // Type is EFI_HII_VARSTORE_NAME_VALUE.
+ //
+ if (Question->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
+ RequestElement = StrStr (ConfigResp, Question->VariableName);
+ if (RequestElement != NULL) {
+ //
+ // Skip the "VariableName=" field.
+ //
+ RequestElement += StrLen (Question->VariableName) + 1;
+ }
+
+ return RequestElement;
+ }
+
+ //
+ // Type is EFI_HII_VARSTORE_EFI_VARIABLE or EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER
+ //
+
+ //
+ // Convert all hex digits in ConfigResp to lower case before searching.
+ //
+ HiiStringToLowercase (ConfigResp);
+
+ //
+ // 1. Directly use Question->BlockName to find.
+ //
+ RequestElement = StrStr (ConfigResp, Question->BlockName);
+ if (RequestElement != NULL) {
+ //
+ // Skip the "Question->BlockName&VALUE=" field.
+ //
+ RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
+ return RequestElement;
+ }
+
+ //
+ // 2. Change all hex digits in Question->BlockName to lower and compare again.
+ //
+ BlockData = AllocateCopyPool (StrSize (Question->BlockName), Question->BlockName);
+ ASSERT (BlockData != NULL);
+ HiiStringToLowercase (BlockData);
+ RequestElement = StrStr (ConfigResp, BlockData);
+ FreePool (BlockData);
+
+ if (RequestElement != NULL) {
+ //
+ // Skip the "Question->BlockName&VALUE=" field.
+ //
+ RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
+ }
+
+ return RequestElement;
+}
+
+/**
+ Get Question default value from AltCfg string.
+
+ @param[in] FormSet The form set.
+ @param[in] Form The form
+ @param[in] Question The question.
+ @param[out] DefaultValue Default value.
+
+ @retval EFI_SUCCESS Question is reset to default value.
+
+**/
+EFI_STATUS
+GetDefaultValueFromAltCfg (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN HII_STATEMENT *Question,
+ OUT HII_STATEMENT_VALUE *DefaultValue
+ )
+{
+ HII_FORMSET_STORAGE *Storage;
+ CHAR16 *ConfigResp;
+ CHAR16 *Value;
+ LIST_ENTRY *Link;
+ HII_FORM_CONFIG_REQUEST *ConfigInfo;
+
+ Storage = Question->Storage;
+ if ((Storage == NULL) || (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Try to get AltCfg string from form. If not found it, then
+ // try to get it from formset.
+ //
+ ConfigResp = NULL;
+ Link = GetFirstNode (&Form->ConfigRequestHead);
+ while (!IsNull (&Form->ConfigRequestHead, Link)) {
+ ConfigInfo = HII_FORM_CONFIG_REQUEST_FROM_LINK (Link);
+ Link = GetNextNode (&Form->ConfigRequestHead, Link);
+
+ if (Storage == ConfigInfo->Storage) {
+ ConfigResp = ConfigInfo->ConfigAltResp;
+ break;
+ }
+ }
+
+ if (ConfigResp == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ Value = GetOffsetFromConfigResp (Question, ConfigResp);
+ if (Value == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ return BufferToQuestionValue (Question, Value, DefaultValue);
+}
+
+/**
+ Get default Id value used for browser.
+
+ @param[in] DefaultId The default id value used by hii.
+
+ @retval Browser used default value.
+
+**/
+INTN
+GetDefaultIdForCallBack (
+ IN UINTN DefaultId
+ )
+{
+ if (DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) {
+ return EFI_BROWSER_ACTION_DEFAULT_STANDARD;
+ } else if (DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
+ return EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING;
+ } else if (DefaultId == EFI_HII_DEFAULT_CLASS_SAFE) {
+ return EFI_BROWSER_ACTION_DEFAULT_SAFE;
+ } else if ((DefaultId >= EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN) && (DefaultId < EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN + 0x1000)) {
+ return EFI_BROWSER_ACTION_DEFAULT_PLATFORM + DefaultId - EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN;
+ } else if ((DefaultId >= EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN) && (DefaultId < EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN + 0x1000)) {
+ return EFI_BROWSER_ACTION_DEFAULT_HARDWARE + DefaultId - EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN;
+ } else if ((DefaultId >= EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN) && (DefaultId < EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN + 0x1000)) {
+ return EFI_BROWSER_ACTION_DEFAULT_FIRMWARE + DefaultId - EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN;
+ } else {
+ return -1;
+ }
+}
+
+/**
+ Get default value of question.
+
+ @param[in] FormSet The form set.
+ @param[in] Form The form.
+ @param[in] Question The question.
+ @param[in] DefaultId The Class of the default.
+ @param[out] DefaultValue The default value of given question.
+
+ @retval EFI_SUCCESS Question is reset to default value.
+
+**/
+EFI_STATUS
+GetQuestionDefault (
+ IN HII_FORMSET *FormSet,
+ IN HII_FORM *Form,
+ IN HII_STATEMENT *Question,
+ IN UINT16 DefaultId,
+ OUT HII_STATEMENT_VALUE *DefaultValue
+ )
+{
+ EFI_STATUS Status;
+ LIST_ENTRY *Link;
+ HII_QUESTION_DEFAULT *Default;
+ HII_QUESTION_OPTION *Option;
+ HII_STATEMENT_VALUE *HiiValue;
+ UINT8 Index;
+ EFI_STRING StrValue;
+ EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
+ EFI_BROWSER_ACTION_REQUEST ActionRequest;
+ INTN Action;
+ EFI_IFR_TYPE_VALUE *TypeValue;
+ UINT16 OriginalDefaultId;
+ HII_FORMSET_DEFAULTSTORE *DefaultStore;
+ LIST_ENTRY *DefaultLink;
+
+ if ((FormSet == NULL) || (Form == NULL) || (Question == NULL) || (DefaultValue == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_NOT_FOUND;
+ StrValue = NULL;
+ OriginalDefaultId = DefaultId;
+ DefaultLink = GetFirstNode (&FormSet->DefaultStoreListHead);
+
+ //
+ // Statement don't have storage, skip them
+ //
+ if (Question->QuestionId == 0) {
+ DEBUG ((DEBUG_ERROR, "%a: Question has no storage, skip it\n", __func__));
+ return Status;
+ }
+
+ //
+ // There are Five ways to specify default value for a Question:
+ // 1, use call back function (highest priority)
+ // 2, use ExtractConfig function
+ // 3, use nested EFI_IFR_DEFAULT
+ // 4, set flags of EFI_ONE_OF_OPTION (provide Standard and Manufacturing default)
+ // 5, set flags of EFI_IFR_CHECKBOX (provide Standard and Manufacturing default) (lowest priority)
+ //
+ CopyMem (DefaultValue, &Question->Value, sizeof (HII_STATEMENT_VALUE));
+ReGetDefault:
+ HiiValue = DefaultValue;
+ TypeValue = &HiiValue->Value;
+ if (HiiValue->Type == EFI_IFR_TYPE_BUFFER) {
+ //
+ // For orderedlist, need to pass the BufferValue to Callback function.
+ //
+ DefaultValue->BufferLen = Question->Value.BufferLen;
+ DefaultValue->Buffer = AllocateZeroPool (DefaultValue->BufferLen);
+ ASSERT (DefaultValue->Buffer != NULL);
+ if (DefaultValue->Buffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ TypeValue = (EFI_IFR_TYPE_VALUE *)DefaultValue->Buffer;
+ }
+
+ //
+ // Get Question default value from call back function.
+ // The string type of question cause HII driver to set string to its default value.
+ // So, we don't do this otherwise it will actually set question to default value.
+ // We only want to get default value of question.
+ //
+ if (HiiValue->Type != EFI_IFR_TYPE_STRING) {
+ ConfigAccess = FormSet->ConfigAccess;
+ Action = GetDefaultIdForCallBack (DefaultId);
+ if ((Action > 0) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) && (ConfigAccess != NULL)) {
+ ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
+ Status = ConfigAccess->Callback (
+ ConfigAccess,
+ Action,
+ Question->QuestionId,
+ HiiValue->Type,
+ TypeValue,
+ &ActionRequest
+ );
+ if (!EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+ }
+
+ //
+ // Get default value from altcfg string.
+ //
+ if (ConfigAccess != NULL) {
+ Status = GetDefaultValueFromAltCfg (FormSet, Form, Question, DefaultValue);
+ if (!EFI_ERROR (Status)) {
+ return Status;
+ }
+ }
+
+ //
+ // EFI_IFR_DEFAULT has highest priority
+ //
+ if (!IsListEmpty (&Question->DefaultListHead)) {
+ Link = GetFirstNode (&Question->DefaultListHead);
+ while (!IsNull (&Question->DefaultListHead, Link)) {
+ Default = HII_QUESTION_DEFAULT_FROM_LINK (Link);
+
+ if (Default->DefaultId == DefaultId) {
+ if (Default->ValueExpression != NULL) {
+ //
+ // Default is provided by an Expression, evaluate it
+ //
+ Status = EvaluateHiiExpression (FormSet, Form, Default->ValueExpression);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Default->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (HiiValue->Type == EFI_IFR_TYPE_BUFFER && DefaultValue->Buffer != NULL);
+ if (DefaultValue->BufferLen > Default->ValueExpression->Result.BufferLen) {
+ CopyMem (DefaultValue->Buffer, Default->ValueExpression->Result.Buffer, Default->ValueExpression->Result.BufferLen);
+ DefaultValue->BufferLen = Default->ValueExpression->Result.BufferLen;
+ } else {
+ CopyMem (DefaultValue->Buffer, Default->ValueExpression->Result.Buffer, DefaultValue->BufferLen);
+ }
+
+ FreePool (Default->ValueExpression->Result.Buffer);
+ }
+
+ HiiValue->Type = Default->ValueExpression->Result.Type;
+ CopyMem (&HiiValue->Value, &Default->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
+ } else {
+ //
+ // Default value is embedded in EFI_IFR_DEFAULT
+ //
+ if (Default->Value.Type == EFI_IFR_TYPE_BUFFER) {
+ ASSERT (HiiValue->Buffer != NULL);
+ CopyMem (HiiValue->Buffer, Default->Value.Buffer, Default->Value.BufferLen);
+ } else {
+ CopyMem (HiiValue, &Default->Value, sizeof (EFI_HII_VALUE));
+ }
+ }
+
+ if (HiiValue->Type == EFI_IFR_TYPE_STRING) {
+ StrValue = HiiGetString (FormSet->HiiHandle, HiiValue->Value.string, NULL);
+ if (StrValue == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (DefaultValue->BufferLen > StrSize (StrValue)) {
+ ZeroMem (DefaultValue->Buffer, DefaultValue->BufferLen);
+ CopyMem (DefaultValue->Buffer, StrValue, StrSize (StrValue));
+ } else {
+ CopyMem (DefaultValue->Buffer, StrValue, DefaultValue->BufferLen);
+ }
+ }
+
+ return EFI_SUCCESS;
+ }
+
+ Link = GetNextNode (&Question->DefaultListHead, Link);
+ }
+ }
+
+ //
+ // EFI_ONE_OF_OPTION
+ //
+ if ((Question->Operand == EFI_IFR_ONE_OF_OP) && !IsListEmpty (&Question->OptionListHead)) {
+ if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
+ //
+ // OneOfOption could only provide Standard and Manufacturing default
+ //
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ Option = HII_QUESTION_OPTION_FROM_LINK (Link);
+ Link = GetNextNode (&Question->OptionListHead, Link);
+
+ if ((Option->SuppressExpression != NULL) &&
+ (EvaluateExpressionList (Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse))
+ {
+ continue;
+ }
+
+ if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT) != 0)) ||
+ ((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT_MFG) != 0))
+ )
+ {
+ CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
+
+ return EFI_SUCCESS;
+ }
+ }
+ }
+ }
+
+ //
+ // EFI_IFR_CHECKBOX - lowest priority
+ //
+ if (Question->Operand == EFI_IFR_CHECKBOX_OP) {
+ if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
+ //
+ // Checkbox could only provide Standard and Manufacturing default
+ //
+ if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Question->ExtraData.Flags & EFI_IFR_CHECKBOX_DEFAULT) != 0)) ||
+ ((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Question->ExtraData.Flags & EFI_IFR_CHECKBOX_DEFAULT_MFG) != 0))
+ )
+ {
+ HiiValue->Value.b = TRUE;
+ }
+
+ return EFI_SUCCESS;
+ }
+ }
+
+ //
+ // For question without default value for current default Id, we try to re-get the default value form other default id in the DefaultStoreList.
+ // If get, will exit the function, if not, will choose next default id in the DefaultStoreList.
+ // The default id in DefaultStoreList are in ascending order to make sure choose the smallest default id every time.
+ //
+ while (!IsNull (&FormSet->DefaultStoreListHead, DefaultLink)) {
+ DefaultStore = HII_FORMSET_DEFAULTSTORE_FROM_LINK (DefaultLink);
+ DefaultLink = GetNextNode (&FormSet->DefaultStoreListHead, DefaultLink);
+ DefaultId = DefaultStore->DefaultId;
+ if (DefaultId == OriginalDefaultId) {
+ continue;
+ }
+
+ goto ReGetDefault;
+ }
+
+ //
+ // For Questions without default value for all the default id in the DefaultStoreList.
+ //
+ Status = EFI_NOT_FOUND;
+ switch (Question->Operand) {
+ case EFI_IFR_CHECKBOX_OP:
+ HiiValue->Value.b = FALSE;
+ Status = EFI_SUCCESS;
+ break;
+
+ case EFI_IFR_NUMERIC_OP:
+ //
+ // Take minimum value as numeric default value
+ //
+ if ((Question->ExtraData.NumData.Flags & EFI_IFR_DISPLAY) == 0) {
+ //
+ // In EFI_IFR_DISPLAY_INT_DEC type, should check value with int* type.
+ //
+ switch (Question->ExtraData.NumData.Flags & EFI_IFR_NUMERIC_SIZE) {
+ case EFI_IFR_NUMERIC_SIZE_1:
+ if (((INT8)HiiValue->Value.u8 < (INT8)Question->ExtraData.NumData.Minimum) || ((INT8)HiiValue->Value.u8 > (INT8)Question->ExtraData.NumData.Maximum)) {
+ HiiValue->Value.u8 = (UINT8)Question->ExtraData.NumData.Minimum;
+ Status = EFI_SUCCESS;
+ }
+
+ break;
+ case EFI_IFR_NUMERIC_SIZE_2:
+ if (((INT16)HiiValue->Value.u16 < (INT16)Question->ExtraData.NumData.Minimum) || ((INT16)HiiValue->Value.u16 > (INT16)Question->ExtraData.NumData.Maximum)) {
+ HiiValue->Value.u16 = (UINT16)Question->ExtraData.NumData.Minimum;
+ Status = EFI_SUCCESS;
+ }
+
+ break;
+ case EFI_IFR_NUMERIC_SIZE_4:
+ if (((INT32)HiiValue->Value.u32 < (INT32)Question->ExtraData.NumData.Minimum) || ((INT32)HiiValue->Value.u32 > (INT32)Question->ExtraData.NumData.Maximum)) {
+ HiiValue->Value.u32 = (UINT32)Question->ExtraData.NumData.Minimum;
+ Status = EFI_SUCCESS;
+ }
+
+ break;
+ case EFI_IFR_NUMERIC_SIZE_8:
+ if (((INT64)HiiValue->Value.u64 < (INT64)Question->ExtraData.NumData.Minimum) || ((INT64)HiiValue->Value.u64 > (INT64)Question->ExtraData.NumData.Maximum)) {
+ HiiValue->Value.u64 = Question->ExtraData.NumData.Minimum;
+ Status = EFI_SUCCESS;
+ }
+
+ break;
+ default:
+ break;
+ }
+ } else {
+ if ((HiiValue->Value.u64 < Question->ExtraData.NumData.Minimum) || (HiiValue->Value.u64 > Question->ExtraData.NumData.Maximum)) {
+ HiiValue->Value.u64 = Question->ExtraData.NumData.Minimum;
+ Status = EFI_SUCCESS;
+ }
+ }
+
+ break;
+
+ case EFI_IFR_ONE_OF_OP:
+ //
+ // Take first oneof option as oneof's default value
+ //
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ Option = HII_QUESTION_OPTION_FROM_LINK (Link);
+ Link = GetNextNode (&Question->OptionListHead, Link);
+
+ if ((Option->SuppressExpression != NULL) &&
+ (EvaluateExpressionList (Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse))
+ {
+ continue;
+ }
+
+ CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
+ Status = EFI_SUCCESS;
+ break;
+ }
+
+ break;
+
+ case EFI_IFR_ORDERED_LIST_OP:
+ //
+ // Take option sequence in IFR as ordered list's default value
+ //
+ Index = 0;
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ Status = EFI_SUCCESS;
+ Option = HII_QUESTION_OPTION_FROM_LINK (Link);
+ Link = GetNextNode (&Question->OptionListHead, Link);
+
+ if ((Option->SuppressExpression != NULL) &&
+ (EvaluateExpressionList (Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse))
+ {
+ continue;
+ }
+
+ SetArrayData (DefaultValue->Buffer, Question->Value.Type, Index, Option->Value.Value.u64);
+
+ Index++;
+ if (Index >= Question->ExtraData.OrderListData.MaxContainers) {
+ break;
+ }
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ return Status;
+}
|