Paul Meyer
f3818538fa
A report signing backend that returns a confidential-computing attestation report obtained via configfs-tsm. Implements io.systemd.Report.Signer.Sign(): embeds the digest as the report's inblob and returns the outblob (plus provider and any aux/manifest blobs). Wired up as the "tsm" mechanism with a socket-activated service. Signed-off-by: Paul Meyer <katexochen0@gmail.com>
47 lines
1.2 KiB
Plaintext
47 lines
1.2 KiB
Plaintext
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Report Signing Service (configfs-tsm)
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Documentation=man:systemd-report-sign-tsm@.service(8)
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DefaultDependencies=no
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Before=shutdown.target
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Conflicts=shutdown.target
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Wants=sys-kernel-config.mount
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After=sys-kernel-config.mount
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[Service]
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ExecStart={{LIBEXECDIR}}/systemd-report-sign-tsm
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CapabilityBoundingSet=
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DeviceAllow=
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IPAddressDeny=any
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LockPersonality=yes
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MemoryDenyWriteExecute=yes
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NoNewPrivileges=yes
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PrivateDevices=yes
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PrivateIPC=yes
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PrivateNetwork=yes
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PrivateTmp=disconnected
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ProtectControlGroups=yes
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ProtectHome=yes
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ProtectHostname=yes
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ProtectKernelLogs=yes
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ProtectKernelModules=yes
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ProtectKernelTunables=yes
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ProtectSystem=strict
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ReadWritePaths=-/sys/kernel/config/tsm/report
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RestrictAddressFamilies=AF_UNIX
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RestrictNamespaces=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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RuntimeMaxSec=5min
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SystemCallArchitectures=native
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SystemCallErrorNumber=EPERM
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SystemCallFilter=@system-service
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