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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/OFBD/OEMPWDCK/OEMPwdCk.c 2 3/16/11 10:34p Terrylin $
//
// $Revision: 2 $
//
// $Date: 3/16/11 10:34p $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/OFBD/OEMPWDCK/OEMPwdCk.c $
//
// 2 3/16/11 10:34p Terrylin
// [TAG] EIP51285
// [Category] Improvement
// [Description] Fill the description for user more clearly.
// [Files] OEMPwdCk.mak
// OEMPwdCk.c
// OEMPwdCk.h
//
// 1 4/13/09 5:47a Lawrencechang
// Initial check-in.
//
// 1 3/25/05 5:37p Markw
//
//**********************************************************************
//<AMI_FHDR_START>
//
// Name: OEMPwdCk.c
//
// Description:
// Password Check protocol is for BIOS to indicate AFU that BIOS password exists and needs to initiate password
// checking before flashing BIOS. AFU will set OEM_PC_CK in dbGetCkSts field and send OFBD data to BIOS to report
// password checking is required or not.
//
// If password check function is requested then BIOS should fill out password length in dwPwdLen field. Afterward AFU
// asks user to input password with specified password length given from BIOS in field dwPwdLen and fill user input
// password in memory buffer after signature of OFBD_EXT_TBL_END for BIOS to do the comparison.
//
//<AMI_FHDR_END>
//**********************************************************************
#include "Efi.h"
#include "token.h"
#include <AmiLib.h>
#include <AmiDxeLib.h>
#include "OEMPwdCk.h"
#include "..\OFBD.h"
static int ErrorNum = 0;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: OFBDPwdGetHandle
//
// Description: OFBD Password Get Handle
//
// Input:
// IN OUT OFBD_HDR *pOFBDHdr
// Output:
// EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
OFBDPwdGetHandle(
IN OUT OFBD_HDR *pOFBDHdr)
{
EFI_STATUS Status = EFI_SUCCESS;
#if OEM_PWDCK_SAMPLE_TEST
char *DisOemStrPwd1 = "Password";
char *DisOemStrPwd2 = "Password Retry count exceeded!";
UINT8 *pOFBDTblEnd;
OFBD_TC_52_PC_STRUCT *PwdCkStructPtr;
pOFBDTblEnd = (UINT8 *)((UINT8 *)pOFBDHdr + (pOFBDHdr->OFBD_Size));
PwdCkStructPtr = (OFBD_TC_52_PC_STRUCT *)((UINT8 *)pOFBDHdr + pOFBDHdr->OFBD_HDR_SIZE + sizeof(OFBD_EXT_HDR));
PwdCkStructPtr->dbRetSts = OEM_RS_PC_REQ;
PwdCkStructPtr->dwPwdLen = 7;
if(ErrorNum < PASSWORD_RETRY_NUM)
{
//pOFBDHdr->OFBD_RS |= OFBD_RS_DIS_OEMSTR;
//Strcpy((char *)pOFBDTblEnd, DisOemStrPwd1);
}
else
{
PwdCkStructPtr->dbRetSts |= OEM_RS_PC_TIMES_EXCEEDED;
//pOFBDHdr->OFBD_RS |= OFBD_RS_DIS_OEMSTR;
//Strcpy((char *)pOFBDTblEnd, DisOemStrPwd2);
}
#endif
return(Status);
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: OFBDPwdCheckHandle
//
// Description: OFBD Password Check Handle
//
// Input:
// IN OUT OFBD_HDR *pOFBDHdr
// Output:
// EFI_STATUS
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
OFBDPwdCheckHandle(
IN OUT OFBD_HDR *pOFBDHdr)
{
EFI_STATUS Status = EFI_SUCCESS;
#if OEM_PWDCK_SAMPLE_TEST
char *DisOemStrPwdOK = "Password Comparison successes!";
char *DisOemStrPwdErr = "Password Comparison error!";
char *DisOemStrPwdErr2 = "Password Retry count exceeded!";
char *Password = "0123456";
UINT8 *pOFBDTblEnd;
OFBD_TC_52_PC_STRUCT *PwdCkStructPtr;
PwdCkStructPtr = (OFBD_TC_52_PC_STRUCT *)((UINT8 *)pOFBDHdr + pOFBDHdr->OFBD_HDR_SIZE + sizeof(OFBD_EXT_HDR));
pOFBDTblEnd = (UINT8 *)((UINT8 *)pOFBDHdr + (pOFBDHdr->OFBD_Size));
if(!MemCmp(pOFBDTblEnd, Password, PwdCkStructPtr->dwPwdLen))
{
PwdCkStructPtr->dbRetSts |= OEM_RS_PC_CK_OK;
//pOFBDHdr->OFBD_RS |= OFBD_RS_DIS_OEMSTR;
//Strcpy((char *)pOFBDTblEnd, DisOemStrPwdOK);
}
else
{
ErrorNum++;
PwdCkStructPtr->dbRetSts |= 0;
if(ErrorNum < PASSWORD_RETRY_NUM)
{
//pOFBDHdr->OFBD_RS |= OFBD_RS_DIS_OEMSTR;
//Strcpy((char *)pOFBDTblEnd, DisOemStrPwdErr);
}
else
{
PwdCkStructPtr->dbRetSts |= OEM_RS_PC_TIMES_EXCEEDED;
//pOFBDHdr->OFBD_RS |= OFBD_RS_DIS_OEMSTR;
//Strcpy((char *)pOFBDTblEnd, DisOemStrPwdErr2);
}
}
#endif
return(Status);
}
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: OFBDEntryPoint
//
// Description: OFBD OEM Password CHECK Entry Point
//
// Input:
// IN VOID *Buffer
// IN OUT UINT8 *pOFBDDataHandled
// Output:
// VOID
//
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
VOID OEMPWDCKEntry (
IN VOID *Buffer,
IN OUT UINT8 *pOFBDDataHandled )
{
OFBD_HDR *pOFBDHdr;
OFBD_EXT_HDR *pOFBDExtHdr;
VOID *pOFBDTblEnd;
OFBD_TC_52_PC_STRUCT *PwdCkStructPtr;
if(*pOFBDDataHandled == 0)
{
pOFBDHdr = (OFBD_HDR *)Buffer;
pOFBDExtHdr = (OFBD_EXT_HDR *)((UINT8 *)Buffer + (pOFBDHdr->OFBD_HDR_SIZE));
PwdCkStructPtr = (OFBD_TC_52_PC_STRUCT *)((UINT8 *)pOFBDExtHdr + sizeof(OFBD_EXT_HDR));
pOFBDTblEnd = (VOID *)((UINT8 *)Buffer + (pOFBDHdr->OFBD_Size));
//TRACE((-1,"pOFBDHdr address is:%x ------\n",pOFBDHdr));
//TRACE((-1,"pOFBDTblEnd address is:%x ------\n",*(UINT64 *)((UINT8 *)pOFBDTblEnd -sizeof(OFBD_END))));
if(pOFBDHdr->OFBD_FS & OFBD_FS_PWD)
{
//Check Type Code ID
if(pOFBDExtHdr->TypeCodeID == OFBD_EXT_TC_PWD)
{
//IoWrite32(0x300, *(UINT32 *)((UINT8 *)pOFBDTblEnd -4)); //debug
if(PwdCkStructPtr->dbGetCkSts == OFBD_TC_OPC_GET)
{
if(OFBDPwdGetHandle(pOFBDHdr) == EFI_SUCCESS)
{
//OEM ROM ID Data Handled.
*pOFBDDataHandled = 0xFF;
return;
}
}
else if(PwdCkStructPtr->dbGetCkSts == OFBD_TC_OPC_CHECK)
{
if(OFBDPwdCheckHandle(pOFBDHdr) == EFI_SUCCESS)
{
//OEM ROM ID Data Handled.
*pOFBDDataHandled = 0xFF;
return;
}
}
/*//Not OEM ROM ID Data.
*pOFBDDataHandled = 0;
return;*/
}
//else
//{
//Error occured
*pOFBDDataHandled = 0xFE;
return;
//}
}
}
return;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2011, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
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