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SecurityPkg OpalPasswordDxe: Clean PSID buffer. 

Change callback handler type to avoid saving PSID info in
browser temp buffer. Also clean the buffer after using it.

Cc: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
This commit is contained in:
Eric Dong 2016-11-21 14:38:31 +08:00 committed by Star Zeng
parent bee13c0021
commit 01dd077315
2 changed files with 17 additions and 10 deletions
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23
SecurityPkg/Tcg/Opal/OpalPasswordDxe/OpalHii.c
View File

@ -501,14 +501,13 @@ DriverCallback(
case HII_KEY_ID_ENTER_PASSWORD:
return HiiPasswordEntered(Value->string);
case HII_KEY_ID_ENTER_PSID:
return HiiPsidRevert(Value->string);
}
} else if (Action == EFI_BROWSER_ACTION_CHANGED) {
switch (HiiKeyId) {
case HII_KEY_ID_ENTER_PSID:
HiiPsidRevert();
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;
return EFI_SUCCESS;
case HII_KEY_ID_BLOCKSID:
switch (Value->u8) {
case 0:
@ -661,12 +660,14 @@ HiiPopulateDiskInfoForm(
/**
Reverts the Opal disk to factory default.
@param PsidStringId The string id for the PSID info.
@retval EFI_SUCCESS Do the required action success.
**/
EFI_STATUS
HiiPsidRevert(
VOID
EFI_STRING_ID PsidStringId
)
{
CHAR8 Response[DEFAULT_RESPONSE_SIZE];
@ -674,15 +675,19 @@ HiiPsidRevert(
OPAL_DISK *OpalDisk;
TCG_RESULT Ret;
OPAL_SESSION Session;
CHAR16 *UnicodeStr;
UINT8 TmpBuf[PSID_CHARACTER_STRING_END_LENGTH];
Ret = TcgResultFailure;
OpalHiiGetBrowserData();
UnicodeStr = HiiGetString (gHiiPackageListHandle, PsidStringId, NULL);
ZeroMem (TmpBuf, sizeof (TmpBuf));
UnicodeStrToAsciiStrS (gHiiConfiguration.Psid, (CHAR8*)TmpBuf, PSID_CHARACTER_STRING_END_LENGTH);
UnicodeStrToAsciiStrS (UnicodeStr, (CHAR8*)TmpBuf, PSID_CHARACTER_STRING_END_LENGTH);
CopyMem (Psid.Psid, TmpBuf, PSID_CHARACTER_LENGTH);
HiiSetString (gHiiPackageListHandle, PsidStringId, L"", NULL);
ZeroMem (TmpBuf, sizeof (TmpBuf));
ZeroMem (UnicodeStr, StrSize (UnicodeStr));
FreePool (UnicodeStr);
OpalDisk = HiiGetOpalDiskCB (gHiiConfiguration.SelectedDiskIndex);
if (OpalDisk != NULL) {

4
SecurityPkg/Tcg/Opal/OpalPasswordDxe/OpalHiiPrivate.h
View File

@ -225,12 +225,14 @@ HiiSetBlockSidAction (
/**
Reverts the Opal disk to factory default.
@param PsidStringId The string id for the PSID info.
@retval EFI_SUCCESS Do the required action success.
**/
EFI_STATUS
HiiPsidRevert(
VOID
EFI_STRING_ID PsidStringId
);
/**