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Filename : systemd-tpm2-clear.service
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#  SPDX-License-Identifier: LGPL-2.1-or-later
#
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Issue TPM Clear Request
Documentation=man:systemd-tpm2-clear.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
After=tpm2.target systemd-pcrphase-factory-reset.service
Before=factory-reset.target shutdown.target

# Note all systems that have a TPM implement the "Physical Presence Interface" (PPI)
ConditionPathExists=/sys/class/tpm/tpm0/ppi/request

# Only do this if we can be reasonably sure people accept our TPM use, which we
# derive here from the fact that UKIs are used. Because if they do they are OK
# with our SRK initialization and our PCR measurements, and hence should also
# be OK with our TPM resets.
ConditionSecurity=measured-uki

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/lib/systemd/systemd-tpm2-clear --graceful

[Install]
WantedBy=factory-reset.target