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-rw-r--r--Core/CORE_DXE/UefiHii/HiAccessConfig.c322
1 files changed, 322 insertions, 0 deletions
diff --git a/Core/CORE_DXE/UefiHii/HiAccessConfig.c b/Core/CORE_DXE/UefiHii/HiAccessConfig.c
new file mode 100644
index 0000000..d165a1e
--- /dev/null
+++ b/Core/CORE_DXE/UefiHii/HiAccessConfig.c
@@ -0,0 +1,322 @@
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2007, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
+
+//**********************************************************************
+// $Header: /Alaska/SOURCE/Core/CORE_DXE/UefiHii/HiAccessConfig.c 7 5/04/11 12:08p Artems $
+//
+// $Revision: 7 $
+//
+// $Date: 5/04/11 12:08p $
+//**********************************************************************
+// Revision History
+// ----------------
+// $Log: /Alaska/SOURCE/Core/CORE_DXE/UefiHii/HiAccessConfig.c $
+//
+// 7 5/04/11 12:08p Artems
+// Bug fix: when variable is absent attribute state was undefined
+//
+// 6 1/25/11 4:03p Artems
+// EIP 51298: Fixed corruption in buffer size after passing it to
+// ConfigToBlock function
+// Added check for correct syntax of request string in ExtractConfig
+// function
+//
+// 5 9/30/10 6:12p Artems
+// Removed unnecessary service functions
+//
+// 3 2/19/10 4:01p Felixp
+// Debug messages are removed.
+//
+// 2 11/25/09 11:25a Felixp
+// Action parameter of the Callback function is updated based on UEFI
+// errata
+//
+// 1 10/09/09 6:12p Felixp
+//
+// 1 3/18/07 5:23p Felixp
+//
+//**********************************************************************
+//<AMI_FHDR_START>
+//
+// Name: HiiAccessConfig.c
+//
+// Description: Hii Config Access protocol implementation
+//
+//<AMI_FHDR_END>
+//**********************************************************************
+
+#pragma warning (disable : 4090)
+
+#include <AmiDxeLib.h>
+#include <Protocol/HiiConfigAccess.h>
+#include <Protocol/HiiConfigRouting.h>
+
+#include "HiiPrivate.h"
+
+extern const NAME_PATTERN GuidPattern;
+extern const NAME_PATTERN NamePattern;
+extern const NAME_PATTERN PathPattern;
+extern const NAME_PATTERN AltCfgPattern;
+extern const NAME_PATTERN OffsetPattern;
+extern const NAME_PATTERN WidthPattern;
+extern const NAME_PATTERN ValuePattern;
+extern const CHAR16 HexDigit[];
+
+UINTN EfiStrLen (IN CHAR16 *String);
+UINTN EfiStrSize (IN CHAR16 *String);
+VOID EfiStrCat (IN CHAR16 *Destination, IN CHAR16 *Source);
+
+//**************************** Protocol functions implementation ***************************
+
+
+EFI_STATUS HiiAccessExtractConfig(
+ IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+ IN CONST EFI_STRING Request,
+ OUT EFI_STRING *Progress,
+ OUT EFI_STRING *Results
+)
+{
+ EFI_STATUS Status;
+ UINTN Length;
+ EFI_GUID Guid;
+ CHAR16 Name[80];
+ CHAR16 *Pointer = Request;
+ UINT8 *Var = NULL;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *ConfigRouting;
+ CHAR16 *ErrorMarker;
+
+ if(Request == NULL) {
+ *Progress = NULL;
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = pBS->LocateProtocol(&gEfiHiiConfigRoutingProtocolGuid, NULL, &ConfigRouting);
+ if(EFI_ERROR(Status))
+ return Status;
+
+//check syntax for guid
+ if(!CheckPattern(Request, &GuidPattern)) {
+ *Progress = Request;
+ return EFI_INVALID_PARAMETER;
+ }
+//extract guid
+ ErrorMarker = Pointer;
+ Pointer += 5; //skip "GUID=" pattern
+ Length = 32; //length of guid in symbols
+ StringToBlock(Pointer, Length, (UINT8 *)&Guid);
+ Pointer += Length;
+ if(*Pointer != L'&') {
+ TRACE((TRACE_DXE_CORE, "HII Extract Config: Guid extraction failed\n"));
+ *Progress = ErrorMarker;
+ return EFI_INVALID_PARAMETER;
+ }
+
+//check syntax for name
+ if(!CheckPattern(Pointer + 1, &NamePattern)) {
+ *Progress = Pointer;
+ return EFI_INVALID_PARAMETER;
+ }
+//extract name
+ ErrorMarker = Pointer;
+ Pointer += 6; //skip '&NAME=' pattern
+ Length = 80;
+ StringToChar16(Pointer, &Length, Name);
+ Pointer += (Length * 4);
+ if(*Pointer != L'&') {
+ TRACE((TRACE_DXE_CORE, "HII Extract Config: Name extraction failed\n"));
+ *Progress = ErrorMarker;
+ return EFI_INVALID_PARAMETER;
+ }
+
+//get variable by name and guid from nvram
+
+ Length = 0;
+ Status = GetEfiVariable(Name, &Guid, NULL, &Length, &Var);
+ if(EFI_ERROR(Status)) {
+ *Progress = Request;
+ return Status;
+ }
+
+//find start of OFFSET/WIDTH/VALUE block
+ Pointer++; //skip '&'
+ while((*Pointer != L'&') && (*Pointer != 0)) //skip PATH
+ Pointer++;
+
+ if(*Pointer == 0) { //OFFSET/WIDTH blocks are missed
+ UINTN TempSize;
+ CHAR16 *TempString;
+ CHAR16 *TempString2;
+
+ TempSize = (EfiStrLen(L"&OFFSET=0&WIDTH=") + sizeof(Length) + 1) * sizeof(CHAR16);
+ TempString = MallocZ(TempSize);
+ if(TempString == NULL)
+ return EFI_OUT_OF_RESOURCES;
+
+ Swprintf_s(TempString, TempSize, L"&OFFSET=0&WIDTH=%x", Length);
+
+ TempSize += EfiStrSize(Request);
+ TempString2 = MallocZ(TempSize);
+ if(TempString2 == NULL)
+ return EFI_OUT_OF_RESOURCES;
+
+ EfiStrCat(TempString2, Request);
+ EfiStrCat(TempString2, TempString);
+
+ Status = ConfigRouting->BlockToConfig(ConfigRouting, TempString2, Var, Length, Results, Progress);
+ *Progress = Request + EfiStrLen(Request); //set Progress to end of ConfigHdr
+ pBS->FreePool(TempString);
+ pBS->FreePool(TempString2);
+ } else { //OFFSET/WIDTH block found, let's check if it's correct
+ if(!CheckPattern(Pointer + 1, &OffsetPattern)) {
+ *Progress = Pointer;
+ return EFI_INVALID_PARAMETER;
+ }
+ Status = ConfigRouting->BlockToConfig(ConfigRouting, Request, Var, Length, Results, Progress);
+ }
+
+ pBS->FreePool(Var);
+
+ return Status;
+}
+
+EFI_STATUS HiiAccessRouteConfig(
+ IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+ IN CONST EFI_STRING Configuration,
+ OUT EFI_STRING *Progress
+)
+{
+ EFI_STATUS Status;
+ UINTN Length;
+ UINTN VarSize;
+ EFI_GUID Guid;
+ CHAR16 Name[80];
+ CHAR16 *Pointer = Configuration;
+ UINT8 *Var = NULL;
+ EFI_HII_CONFIG_ROUTING_PROTOCOL *ConfigRouting;
+ EFI_HANDLE Handle;
+ UINT32 Attributes;
+
+ if(Configuration == NULL)
+ {
+ *Progress = NULL;
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = pBS->LocateProtocol(&gEfiHiiConfigRoutingProtocolGuid, NULL, &ConfigRouting);
+ if(EFI_ERROR(Status))
+ return Status;
+
+//check syntax for guid
+ if(!CheckPattern(Configuration, &GuidPattern))
+ {
+ *Progress = Configuration;
+ return EFI_INVALID_PARAMETER;
+ }
+
+//check proper device path
+ Status = FindDeviceHandle(Configuration, &Handle);
+ if(EFI_ERROR(Status))
+ return EFI_NOT_FOUND;
+
+//extract guid
+ Pointer += 5; //skip "GUID=" pattern
+ Length = 32; //length of guid in bytes
+ StringToBlock(Pointer, Length, (UINT8 *)&Guid);
+ Pointer += Length;
+ if(*Pointer != L'&')
+ {
+ TRACE((TRACE_DXE_CORE, "HII Route Config: Guid extraction failed\n"));
+ *Progress = Pointer;
+ return EFI_INVALID_PARAMETER;
+ }
+
+//check syntax for name
+ if(!CheckPattern(Pointer + 1, &NamePattern))
+ {
+ *Progress = Pointer;
+ return EFI_INVALID_PARAMETER;
+ }
+//extract name
+ Pointer += 6; //skip '&NAME=' pattern
+ Length = 80;
+ StringToChar16(Pointer, &Length, Name);
+ Pointer += (Length * 4);
+ if(*Pointer != L'&')
+ {
+ TRACE((TRACE_DXE_CORE, "HII Route Config: Name extraction failed\n"));
+ *Progress = Pointer;
+ return EFI_INVALID_PARAMETER;
+ }
+
+//get variable by name and guid from nvram
+
+ Length = 0;
+ Status = GetEfiVariable(Name, &Guid, &Attributes, &Length, &Var);
+ if(EFI_ERROR(Status)) //requested variable not found
+ {
+ Var = NULL;
+ Length = 0;
+ Attributes = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS;
+ }
+ VarSize = Length;
+
+ Status = ConfigRouting->ConfigToBlock(ConfigRouting, Configuration, Var, &Length, Progress);
+ while(Status == EFI_DEVICE_ERROR) //block not large enough
+ {
+ if(Var != NULL)
+ pBS->FreePool(Var);
+
+ Status = pBS->AllocatePool(EfiBootServicesData, Length, &Var);
+ if(EFI_ERROR(Status))
+ return Status;
+
+ VarSize = Length;
+ Status = ConfigRouting->ConfigToBlock(ConfigRouting, Configuration, Var, &Length, Progress);
+ }
+
+ if(EFI_ERROR(Status))
+ return Status;
+
+ pRS->SetVariable(Name, &Guid, Attributes, VarSize, Var);
+
+ pBS->FreePool(Var);
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS HiiAccessFormCallback(
+ IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
+ IN EFI_BROWSER_ACTION Action,
+ IN EFI_QUESTION_ID QuestionId,
+ IN UINT8 Type,
+ IN EFI_IFR_TYPE_VALUE *Value,
+ OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
+)
+{
+ return EFI_UNSUPPORTED;
+}
+
+//**********************************************************************
+//**********************************************************************
+//** **
+//** (C)Copyright 1985-2007, American Megatrends, Inc. **
+//** **
+//** All Rights Reserved. **
+//** **
+//** 6145-F Northbelt Pkwy, Norcross, GA 30071 **
+//** **
+//** Phone: (770)-246-8600 **
+//** **
+//**********************************************************************
+//**********************************************************************
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