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# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2023-2024 Oracle. All Rights Reserved.
# Author: Darrick J. Wong <djwong@kernel.org>
[Unit]
Description=Online bcachefsck for All Filesystems Failure Reporting
Documentation=man:bcachefsck_all(8)
[Service]
Type=oneshot
Environment=EMAIL_ADDR=root
ExecStart=@libexecdir@/bcachefsck_fail "${EMAIL_ADDR}" bcachefsck_all
User=mail
Group=mail
SupplementaryGroups=systemd-journal
# No realtime scheduling
RestrictRealtime=true
# Make the entire filesystem readonly and /home inaccessible.
ProtectSystem=full
ProtectHome=yes
PrivateTmp=true
RestrictSUIDSGID=true
# Emailing reports requires network access, but not the ability to change the
# hostname.
ProtectHostname=true
# Don't let the program mess with the kernel configuration at all
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectControlGroups=true
ProtectProc=invisible
RestrictNamespaces=true
# Can't hide /proc because journalctl needs it to find various pieces of log
# information
#ProcSubset=pid
# Only allow the default personality Linux
LockPersonality=true
# No writable memory pages
MemoryDenyWriteExecute=true
# Don't let our mounts leak out to the host
PrivateMounts=true
# Restrict system calls to the native arch and only enough to get things going
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallFilter=~@privileged
SystemCallFilter=~@resources
SystemCallFilter=~@mount
# xfs_scrub needs these privileges to run, and no others
CapabilityBoundingSet=
NoNewPrivileges=true
# Failure reporting shouldn't create world-readable files
UMask=0077
# Clean up any IPC objects when this unit stops
RemoveIPC=true
# No access to hardware device files
PrivateDevices=true
ProtectClock=true
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