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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 21:41:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 21:41:43 +0000
commit92cccad89d1c12b39165d5f0ed7ccd2d44965a1a (patch)
treef59a2764cd8c50959050a428bd8fc935138df750 /src/tpm2/PPPlat.c
parentInitial commit. (diff)
downloadlibtpms-92cccad89d1c12b39165d5f0ed7ccd2d44965a1a.tar.xz
libtpms-92cccad89d1c12b39165d5f0ed7ccd2d44965a1a.zip
Adding upstream version 0.9.2.upstream/0.9.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tpm2/PPPlat.c')
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1 files changed, 112 insertions, 0 deletions
diff --git a/src/tpm2/PPPlat.c b/src/tpm2/PPPlat.c
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+/********************************************************************************/
+/* */
+/* 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"
+#include "LibtpmsCallbacks.h" /* libtpms added */
+/* 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
+ )
+{
+#ifdef TPM_LIBTPMS_CALLBACKS
+ BOOL pp;
+ int ret = libtpms_plat__PhysicalPresenceAsserted(&pp);
+
+ if (ret != LIBTPMS_CALLBACK_FALLTHROUGH)
+ return pp;
+#endif /* TPM_LIBTPMS_CALLBACKS */
+
+ // Do not know how to check physical presence without real hardware.
+ // so always return TRUE;
+ return s_physicalPresence;
+}
+#if 0 /* libtpms added */
+/* 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;
+}
+#endif /* libtpms added */