mirror of
https://github.com/libfuse/libfuse.git
synced 2026-07-07 14:47:41 +08:00
Darrick J. Wong
e881b37462
This is the only example fuse server that exports a regular file instead of a directory tree. Port it to be usable as a systemd fuse service so that we can test that capability. Signed-off-by: Darrick J. Wong <djwong@kernel.org>
103 lines
2.4 KiB
Desktop File
103 lines
2.4 KiB
Desktop File
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
#
|
|
# Copyright (C) 2026 Oracle. All Rights Reserved.
|
|
# Author: Darrick J. Wong <djwong@kernel.org>
|
|
[Unit]
|
|
Description=null Sample Fuse Service
|
|
|
|
# Don't leave failed units behind, systemd does not clean them up!
|
|
CollectMode=inactive-or-failed
|
|
|
|
[Service]
|
|
Type=exec
|
|
ExecStart=/path/to/null
|
|
|
|
# Try to capture core dumps
|
|
LimitCORE=infinity
|
|
|
|
SyslogIdentifier=%N
|
|
|
|
# No realtime CPU scheduling
|
|
RestrictRealtime=true
|
|
|
|
# Don't let us see anything in the regular system, and don't run as root
|
|
DynamicUser=true
|
|
ProtectSystem=strict
|
|
ProtectHome=true
|
|
PrivateTmp=true
|
|
PrivateDevices=true
|
|
PrivateUsers=true
|
|
|
|
# No network access
|
|
PrivateNetwork=true
|
|
ProtectHostname=true
|
|
RestrictAddressFamilies=none
|
|
IPAddressDeny=any
|
|
|
|
# Don't let the program mess with the kernel configuration at all
|
|
ProtectKernelLogs=true
|
|
ProtectKernelModules=true
|
|
ProtectKernelTunables=true
|
|
ProtectControlGroups=true
|
|
ProtectProc=invisible
|
|
RestrictNamespaces=true
|
|
RestrictFileSystems=
|
|
|
|
# Hide everything in /proc, even /proc/mounts
|
|
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=~@clock
|
|
SystemCallFilter=~@cpu-emulation
|
|
SystemCallFilter=~@debug
|
|
SystemCallFilter=~@module
|
|
SystemCallFilter=~@reboot
|
|
SystemCallFilter=~@swap
|
|
|
|
SystemCallFilter=~@mount
|
|
|
|
# libfuse io_uring wants to pin cores and memory
|
|
SystemCallFilter=mbind
|
|
SystemCallFilter=sched_setaffinity
|
|
|
|
# Leave a breadcrumb if we get whacked by the system call filter
|
|
SystemCallErrorNumber=EL3RST
|
|
|
|
# Log to the kernel dmesg, just like an in-kernel filesystem driver
|
|
StandardOutput=append:/dev/ttyprintk
|
|
StandardError=append:/dev/ttyprintk
|
|
|
|
# Run with no capabilities at all
|
|
CapabilityBoundingSet=
|
|
AmbientCapabilities=
|
|
NoNewPrivileges=true
|
|
|
|
# We don't create files
|
|
UMask=7777
|
|
|
|
# No access to hardware /dev files at all
|
|
ProtectClock=true
|
|
DevicePolicy=closed
|
|
|
|
# Don't mess with set[ug]id anything.
|
|
RestrictSUIDSGID=true
|
|
|
|
# Don't let OOM kills of processes in this containment group kill the whole
|
|
# service, because we don't want filesystem drivers to go down.
|
|
OOMPolicy=continue
|
|
OOMScoreAdjust=-1000
|