diff options
Diffstat (limited to 'Core/EM/TCG2/Common/TcgCRBPei.c')
| -rw-r--r-- | Core/EM/TCG2/Common/TcgCRBPei.c | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/Core/EM/TCG2/Common/TcgCRBPei.c b/Core/EM/TCG2/Common/TcgCRBPei.c new file mode 100644 index 0000000..02dff94 --- /dev/null +++ b/Core/EM/TCG2/Common/TcgCRBPei.c @@ -0,0 +1,537 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** +//************************************************************************* +// $Header: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TcgCRBPei.c 3 4/21/14 3:45p Fredericko $ +// +// $Revision: 3 $ +// +// $Date: 4/21/14 3:45p $ +//************************************************************************* +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/TCG2/Common/TcgPei/TcgCRBPei.c $ +// +// 3 4/21/14 3:45p Fredericko +// +// 2 4/21/14 3:16p Fredericko +// +// 1 4/21/14 2:16p Fredericko +// +// 2 3/17/14 3:17p Fredericko +// +// 1 10/08/13 12:02p Fredericko +// Initial Check-In for Tpm-Next module +// +// 2 10/03/13 1:55p Fredericko +// +// 1 7/10/13 5:51p Fredericko +// [TAG] EIP120969 +// [Category] New Feature +// [Description] TCG (TPM20) +// +// +//************************************************************************* +//************************************************************************* +//<AMI_FHDR_START> +// +// Name: +// +// Description: +// +// +//<AMI_FHDR_END> +//************************************************************************* +#include <Efi.h> +#include "TcgCommon.h" +#include <AmiPeiLib.h> +#include <Sha.h> +#include <TcgMisc.h> +#include <token.h> +#include <TpmLib.h> +#include <TcgPc.h> +#include "PPI\TcgService\TcgService.h" +#include "PPI\TpmDevice\TpmDevice.h" +#include "Tpm20CRBLib.h" +#include "PPI\CpuIo.h" +#include "PPI\LoadFile.h" +#include <FFS.h> +#include "TcgPlatformSetupPeiPolicy.h" + + +//********************************************************************* +// GLOBAL DEFINITIONS +//********************************************************************* +EFI_GUID gEfiCrbPeiAmiTcgLogHobGuid = EFI_TCG_LOG_HOB_GUID; +EFI_GUID gPeiCrbTcgPpiGuid = PEI_TCG_PPI_GUID; + + +UINT8 GetHashPolicy(IN EFI_PEI_SERVICES **PeiServices); + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: InternalPeiBuildHobGuid +// +// Description: Internal abstracted function to create a Hob +// +// Input: IN EFI_PEI_SERVICES **PeiServices, +// IN EFI_GUID *Guid, +// IN UINTN DataLength, +// OUT VOID **Hob +// +// Output: EFI_STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS InternalPeiBuildHobGuid( + IN EFI_PEI_SERVICES **PeiServices, + IN EFI_GUID *Guid, + IN UINTN DataLength, + OUT VOID **Hob ) +{ + EFI_STATUS Status; + + Status = (*PeiServices)->CreateHob( + PeiServices, + EFI_HOB_TYPE_GUID_EXTENSION, + (UINT16) ( sizeof (EFI_HOB_GUID_TYPE) + DataLength ), + Hob + ); + + if ( EFI_ERROR( Status )) + { + return Status; + } + + PEI_TRACE((-1, PeiServices, "Hob created \n")); + ((EFI_HOB_GUID_TYPE*)(*Hob))->Name = *Guid; + + return EFI_SUCCESS; +} + + + +EFI_STATUS +EFIAPI CrbGetEventLog( + IN EFI_PEI_SERVICES **PeiServices, + OUT TCG_LOG_HOB **EventLog ) +{ + EFI_STATUS Status; + VOID *HobStart; + + Status = (*PeiServices)->GetHobList( PeiServices, &HobStart ); + + if ( EFI_ERROR( Status )) + { + return Status; + } + + return GetNextGuidHob( &HobStart, &gEfiCrbPeiAmiTcgLogHobGuid, EventLog, NULL ); +} + + +//********************************************************************** +//<AMI_PHDR_START> +// Name: TcgPeiLogEvent +// +// Description: TCGPEI common function to Hash, Log and Extend data +// using software SHA-1 +// +// Input: IN *This +// IN **PeiServices +// IN *Event, +// IN *EventNum +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************* +EFI_STATUS +EFIAPI CrbTcgPeiLogEvent( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN TCG_PCR_EVENT *Event, + OUT UINT32 *EventNum ) +{ + EFI_STATUS Status = EFI_SUCCESS; + TCG_LOG_HOB *TcgLog; + + +#if defined LOG_EV_EFI_ACTION && LOG_EV_EFI_ACTION == 0 + if(Event->EventType == EV_EFI_ACTION) + { + return EFI_SUCCESS; + } +#endif + + Status = CrbGetEventLog( PeiServices, &TcgLog ); + if ( EFI_ERROR( Status ))goto Exit; + + Status = TcgCommonLogEvent(NULL, + (TCG_PCR_EVENT*)(TcgLog + 1), + &TcgLog->TableSize, + TcgLog->TableMaxSize, + Event, 0); + + if ( EFI_ERROR( Status ))goto Exit; + + *EventNum = TcgLog->EventNum; + TcgLog->EventNum++; + +Exit: + return Status; +} + + + + + + +//********************************************************************** +//<AMI_PHDR_START> +// Name: TcgPeiHashLogExtendEventTpm +// +// Description: TCGPEI common function to Hash, Log and Extend data using TPM +// +// Input: IN *This +// IN **PeiServices +// IN *HashData +// IN HashDataLen +// IN *NewEvent, +// IN *EventNum +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************* +EFI_STATUS +EFIAPI CrbTcgPeiHashLogExtendEventTpm( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN UINT8 *HashData, + IN UINT32 HashDataLen, + IN OUT TCG_PCR_EVENT *NewEvent, + OUT UINT32 *EventNum ) +{ + return EFI_UNSUPPORTED; +} + + +EFI_STATUS +CrbTpm20PeiExtend( + IN EFI_PEI_SERVICES **PeiServices, + IN TPM_PCRINDEX PcrIndex, + IN TCG_DIGEST *Digest, + OUT TCG_DIGEST *NewPCRValue ) +{ + TPM2_PCRExtend_cmd_t Cmd; + TPM2_PCRExtend_res_t Res; + TPM2_PCRExtend_res_t Tmpres; + UINT32 CmdSize; + UINT8 *Buffer; + UINT8 *AuthSizeOffset; + UINT8 *ResultBuf = NULL; + UINT32 ResultBufSize = 0; + UINT32 DigestSize; + EFI_STATUS Status; + + Cmd.Tag = (TPMI_ST_COMMAND_TAG)TPM_H2NS(TPM_ST_SESSIONS); + Cmd.CommandSize = TPM_H2NL(sizeof(Cmd)); + Cmd.CommandCode = TPM_H2NL(TPM_CC_PCR_Extend); + + Buffer = (UINT8 *)&Cmd.inputParameters; + *(UINT32 *)Buffer = TPM_H2NL(PcrIndex); + Buffer += sizeof(UINT32); + + AuthSizeOffset = Buffer; + *(UINT32 *)Buffer = 0; + Buffer += sizeof(UINT32); + + // pcr authHandle + *(UINT32 *)Buffer = TPM_H2NL(TPM_RS_PW); + Buffer += sizeof(UINT32); + + // nonce = nullNonce + *(UINT16 *)Buffer = 0; + Buffer += sizeof(UINT16); + + // sessionAttributes = 0 + *(UINT8 *)Buffer = 0; + Buffer += sizeof(UINT8); + + // auth = nullAuth + *(UINT16 *)Buffer = 0; + Buffer += sizeof(UINT16); + + // authorizationSize + *(UINT32 *)AuthSizeOffset = TPM_H2NL((UINT32)(Buffer - AuthSizeOffset - sizeof(UINT32))); + + //Digest count + *(UINT32 *)Buffer = TPM_H2NL(1); + Buffer += sizeof(UINT32); + + //Hash alg + // Get the digest size based on Hash Alg + if(GetHashPolicy(PeiServices)==0){ + //Hash alg + *(UINT16 *)Buffer = TPM_H2NS(TPM2_ALG_SHA1); + Buffer += sizeof(UINT16); + DigestSize = 0x14; + TcgCommonCopyMem(NULL, Buffer, &Digest->digest, DigestSize); + }else{ + //Hash alg + /**(UINT16 *)Buffer = TPM_H2NS(TPM2_ALG_SHA256); + Buffer += sizeof(UINT16); + DigestSize = 0x20; + TcgCommonCopyMem(NULL, Buffer, &Digest->digestSha2, DigestSize);*/ + return EFI_UNSUPPORTED; + } + + Buffer += DigestSize; + + CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd); + Cmd.CommandSize = TPM_H2NL(CmdSize); + + ResultBuf = (UINT8 *) &Tmpres; + ResultBufSize = sizeof(Res); + + + PEI_TRACE((-1, PeiServices, "OutputSizeBefore = %x \n", ResultBufSize)); + + Status = CrbSubmitCmd((UINT8 *)&Cmd, CmdSize, ResultBuf, &ResultBufSize); + + PEI_TRACE((-1, PeiServices, "Status = %r \n", Status)); + PEI_TRACE((-1, PeiServices, "OutputSizeAfter = %x \n", ResultBufSize)); + + return Status; +} + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TcgPeiHashLogExtendEventSW +// Description: TCGPEI Software function to Hash, Log and Extend data +// using software SHA-1 +// +// Input: IN *This +// IN **PeiServices +// IN *HashData +// IN HashDataLen +// IN OUT *NewEvent, +// OUT *EventNum +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************* +EFI_STATUS CrbTcgPeiHashLogExtendEventSW( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN UINT8 *HashData, + IN UINT32 HashDataLen, + IN OUT TCG_PCR_EVENT *NewEvent, + OUT UINT32 *EventNum ) +{ + EFI_STATUS Status; + TCG_DIGEST NewPCRValue; + +#if defined LOG_EV_EFI_ACTION && LOG_EV_EFI_ACTION == 0 + if(NewEvent->EventType == EV_EFI_ACTION) + { + return EFI_SUCCESS; + } +#endif + + if(GetHashPolicy(PeiServices)==0) + { + Status = SHA1HashAll( NULL, HashData, HashDataLen, &NewEvent->Digest ); + if ( EFI_ERROR( Status )){ + PEI_TRACE((-1, PeiServices, "SHA1HashAll fail %r \n", Status)); + return Status; + } + }else if(GetHashPolicy(PeiServices)==1){ + /* Status = SHA2HashAll( NULL, HashData, HashDataLen, &NewEvent->Digest); + if ( EFI_ERROR( Status )){ + PEI_TRACE((-1, PeiServices, "SHA1HashAll fail %r \n", Status)); + return Status; + }*/ + } + + Status = CrbTpm20PeiExtend( + PeiServices, + NewEvent->PCRIndex, + &NewEvent->Digest, + &NewPCRValue ); + + if ( EFI_ERROR( Status )){ + PEI_TRACE((-1, PeiServices, "CrbTpm20PeiExtend fail %r \n", Status)); + goto Exit; + } + + Status = CrbTcgPeiLogEvent( This, PeiServices, NewEvent, EventNum ); + PEI_TRACE((-1, PeiServices, "CrbTcgPeiLogEvent fail %r \n", Status)); + +Exit: + return Status; +} + + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Name: TcgPeiPassThroughToTpm +// +// Description: TCGPEI common function to abstract passing commands to the TPM +// FIFO +// +// Input: IN *This +// IN **PeiServices +// IN TpmInputParameterBlockSize +// IN *TpmInputParameterBlock +// IN TpmOutputParameterBlockSize +// IN *TpmOutputParameterBlock +// +// Output: EFI STATUS +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI CrbTcgPeiPassThroughToTpm( + IN PEI_TCG_PPI *This, + IN EFI_PEI_SERVICES **PeiServices, + IN UINT32 TpmInputParameterBlockSize, + IN UINT8 *TpmInputParameterBlock, + IN UINT32 TpmOutputParameterBlockSize, + IN UINT8 *TpmOutputParameterBlock ) +{ + UINT32 Size = 0; + EFI_STATUS Status; + Size = TpmOutputParameterBlockSize; + + PEI_TRACE((-1, PeiServices, "CrbTcgPeiPassThroughToTpm Execution \n")); + + PEI_TRACE((-1, PeiServices, "OutputSizeBefore = %x \n", Size)); + + Status = CrbSubmitCmd(TpmInputParameterBlock, + TpmInputParameterBlockSize, + TpmOutputParameterBlock, + &Size); + + PEI_TRACE((-1, PeiServices, "Status = %r \n", Status)); + PEI_TRACE((-1, PeiServices, "OutputSizeAfter = %x \n", Size)); + return Status; +} + + +static PEI_TCG_PPI mTcgPpi = { + CrbTcgPeiHashLogExtendEventSW, + CrbTcgPeiLogEvent, + CrbTcgPeiPassThroughToTpm +}; + +static EFI_PEI_PPI_DESCRIPTOR mTcgPpiList[] = { + { + EFI_PEI_PPI_DESCRIPTOR_PPI + | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST, + &gPeiCrbTcgPpiGuid, + &mTcgPpi + } +}; + + + +//********************************************************************** +//<AMI_PHDR_START> +// +// Procedure: Tpm20CrbEntry +// +// Description: +// +// +// Input: +// +// Output: +// +// Modified: +// +// Referrals: +// +// Notes: +//<AMI_PHDR_END> +//********************************************************************** +EFI_STATUS +EFIAPI Tpm20CrbEntry( + IN EFI_FFS_FILE_HEADER *FfsHeader, + IN EFI_PEI_SERVICES **PeiServices ) +{ + EFI_STATUS Status; + TCG_LOG_HOB *TcgLog; + EFI_HOB_GUID_TYPE *Hob; + + if(!isTpm20CrbPresent())return EFI_NOT_FOUND; + Status = InternalPeiBuildHobGuid(PeiServices, &gEfiCrbPeiAmiTcgLogHobGuid, + (sizeof (*TcgLog) + 0x200), & Hob); + + PEI_TRACE((-1, PeiServices, "CrbBuild Hob Status = %r \n", Status)); + + TcgLog = (TCG_LOG_HOB*)(Hob + 1); + (*PeiServices)->SetMem( TcgLog, sizeof (*TcgLog), 0 ); + TcgLog->TableMaxSize = 0x200; + Status = (*PeiServices)->InstallPpi( PeiServices, mTcgPpiList ); + return Status; +} +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** |