mirror of
https://github.com/systemd/systemd
synced 2024-07-21 18:24:38 +00:00
2e64cb71b9
This adds an explicit service for initializing the TPM2 SRK. This is implicitly also done by systemd-cryptsetup, hence strictly speaking redundant, but doing this early has the benefit that we can parallelize this in a nicer way. This also write a copy of the SRK public key in PEM format to /run/ + /var/lib/, thus pinning the disk image to the TPM. Making the SRK public key is also useful for allowing easy offline encryption for a specific TPM. Sooner or later we should probably grow what this service does, the above is just the first step. For example, the service should probably offer the ability to reset the TPM (clear the owner hierarchy?) on a factory reset, if such a policy is needed. And we might want to install some default AK (?). Fixes: #27986 Also see: #22637
25 lines
794 B
SYSTEMD
25 lines
794 B
SYSTEMD
# 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=TPM2 SRK Setup
|
|
Documentation=man:systemd-tpm2-setup.service(8)
|
|
DefaultDependencies=no
|
|
Conflicts=shutdown.target
|
|
After=systemd-tpm2-setup-early.service systemd-remount-fs.service
|
|
Before=sysinit.target shutdown.target
|
|
RequiresMountsFor=/var/lib/systemd/tpm2-srk-public-key.pem
|
|
ConditionSecurity=measured-uki
|
|
ConditionPathExists=!/etc/initrd-release
|
|
|
|
[Service]
|
|
Type=oneshot
|
|
RemainAfterExit=yes
|
|
ExecStart={{LIBEXECDIR}}/systemd-tpm2-setup
|