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SecurityPkg: TPM12CommandLib: Add Response returnCode Check 

Check response return code before return from Tpm12Extend and
Tpm12PhysicalPresence.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
Reviewed-by: Long Qin <qin.long@intel.com>
This commit is contained in:
Zhang, Chao B 2016-08-31 09:26:08 +08:00
parent 6c59c7c2f4
commit 950a3bc788
2 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
SecurityPkg/Library/Tpm12CommandLib/Tpm12Pcr.c
View File

@ -74,6 +74,11 @@ Tpm12Extend (
return Status;
}
if (SwapBytes32(Response.Hdr.returnCode) != TPM_SUCCESS) {
DEBUG ((EFI_D_ERROR, "Tpm12Extend: Response Code error! 0x%08x\r\n", SwapBytes32(Response.Hdr.returnCode)));
return EFI_DEVICE_ERROR;
}
if (NewPcrValue != NULL) {
CopyMem (NewPcrValue, &Response.TpmDigest, sizeof (*NewPcrValue));
}

14
SecurityPkg/Library/Tpm12CommandLib/Tpm12PhysicalPresence.c
View File

@ -44,6 +44,7 @@ Tpm12PhysicalPresence (
IN TPM_PHYSICAL_PRESENCE PhysicalPresence
)
{
EFI_STATUS Status;
TPM_CMD_PHYSICAL_PRESENCE Command;
TPM_RSP_COMMAND_HDR Response;
UINT32 Length;
@ -56,5 +57,16 @@ Tpm12PhysicalPresence (
Command.Hdr.ordinal = SwapBytes32 (TSC_ORD_PhysicalPresence);
Command.PhysicalPresence = SwapBytes16 (PhysicalPresence);
Length = sizeof (Response);
return Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
if (SwapBytes32(Response.returnCode) != TPM_SUCCESS) {
DEBUG ((EFI_D_ERROR, "Tpm12PhysicalPresence: Response Code error! 0x%08x\r\n", SwapBytes32(Response.returnCode)));
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}