/********************************************************************************/ /* */ /* Simulates the Physical Present Interface */ /* Written by Ken Goldman */ /* IBM Thomas J. Watson Research Center */ /* $Id: PPPlat.c 1490 2019-07-26 21:13:22Z kgoldman $ */ /* */ /* Licenses and Notices */ /* */ /* 1. Copyright Licenses: */ /* */ /* - Trusted Computing Group (TCG) grants to the user of the source code in */ /* this specification (the "Source Code") a worldwide, irrevocable, */ /* nonexclusive, royalty free, copyright license to reproduce, create */ /* derivative works, distribute, display and perform the Source Code and */ /* derivative works thereof, and to grant others the rights granted herein. */ /* */ /* - The TCG grants to the user of the other parts of the specification */ /* (other than the Source Code) the rights to reproduce, distribute, */ /* display, and perform the specification solely for the purpose of */ /* developing products based on such documents. */ /* */ /* 2. Source Code Distribution Conditions: */ /* */ /* - Redistributions of Source Code must retain the above copyright licenses, */ /* this list of conditions and the following disclaimers. */ /* */ /* - Redistributions in binary form must reproduce the above copyright */ /* licenses, this list of conditions and the following disclaimers in the */ /* documentation and/or other materials provided with the distribution. */ /* */ /* 3. Disclaimers: */ /* */ /* - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF */ /* LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH */ /* RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES) */ /* THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE. */ /* Contact TCG Administration (admin@trustedcomputinggroup.org) for */ /* information on specification licensing rights available through TCG */ /* membership agreements. */ /* */ /* - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED */ /* WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR */ /* FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR */ /* NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY */ /* OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. */ /* */ /* - Without limitation, TCG and its members and licensors disclaim all */ /* liability, including liability for infringement of any proprietary */ /* rights, relating to use of information in this specification and to the */ /* implementation of this specification, and TCG disclaims all liability for */ /* cost of procurement of substitute goods or services, lost profits, loss */ /* of use, loss of data or any incidental, consequential, direct, indirect, */ /* or special damages, whether under contract, tort, warranty or otherwise, */ /* arising in any way out of use or reliance upon this specification or any */ /* information herein. */ /* */ /* (c) Copyright IBM Corp. and others, 2016 - 2019 */ /* */ /********************************************************************************/ /* C.10 PPPlat.c */ /* C.10.1. Description */ /* This module simulates the physical presence interface pins on the TPM. */ /* C.10.2. Includes */ #include "Platform.h" /* C.10.3. Functions */ /* C.10.3.1. _plat__PhysicalPresenceAsserted() */ /* Check if physical presence is signaled */ /* Return Values Meaning */ /* TRUE(1) if physical presence is signaled */ /* FALSE(0) if physical presence is not signaled */ LIB_EXPORT int _plat__PhysicalPresenceAsserted( void ) { // Do not know how to check physical presence without real hardware. // so always return TRUE; return s_physicalPresence; } /* C.10.3.2. _plat__Signal_PhysicalPresenceOn() */ /* Signal physical presence on */ LIB_EXPORT void _plat__Signal_PhysicalPresenceOn( void ) { s_physicalPresence = TRUE; return; } /* C.10.3.3. _plat__Signal_PhysicalPresenceOff() */ /* Signal physical presence off */ LIB_EXPORT void _plat__Signal_PhysicalPresenceOff( void ) { s_physicalPresence = FALSE; return; }