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SecurityPkg\SmmTcg2PhysicalPresenceLib.c Handle reserved or unimplemented PP Operation 

Several PP operations < 128(Vendor Specific) are reserved or unimplemented.
Follow TCG PC Client Platform Physical Presence Interface Specification to return
not implemented.
https://trustedcomputinggroup.org/wp-content/uploads/Physical-Presence-Interface_1-30_0-52.pdf

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Zhang, Chao B 2017-09-22 14:40:12 +08:00
parent 119d8c42ab
commit 265e5c82f5
1 changed files with 7 additions and 7 deletions
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14
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/SmmTcg2PhysicalPresenceLib.c
View File

@ -10,7 +10,7 @@
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction() and Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction()
will receive untrusted input and do validation.
Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -291,6 +291,7 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
}
break;
case TCG2_PHYSICAL_PRESENCE_NO_ACTION:
case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_CLEAR_TRUE:
RequestConfirmed = TRUE;
break;
@ -336,12 +337,11 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
break;
default:
if (OperationRequest <= TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) {
RequestConfirmed = TRUE;
} else {
if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;
}
if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
//
// TCG PP spec defined operations that are reserved or un-implemented
//
return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;
}
break;
}