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systemd/units/systemd-userdbd.service.in
Michal Sekletar d5e5bc2fe9 units: allow systemd-userdbd to change process name
rename_process() requires CAP_SYS_RESOURCE so let's make sure it is in
our permitted set after execve() by adding in to the bounding set.

Previously,
systemd-userdbd.service - User Database Manager
     Loaded: loaded (/usr/lib/systemd/system/systemd-userdbd.service; indirect; preset: disabled)
     Active: active (running) since Mon 2022-12-19 17:07:21 CET; 17min ago
TriggeredBy: ● systemd-userdbd.socket
       Docs: man:systemd-userdbd.service(8)
   Main PID: 1880 (systemd-userdbd)
     Status: "Processing requests..."
      Tasks: 4 (limit: 2272)
     Memory: 5.2M
        CPU: 244ms
     CGroup: /system.slice/systemd-userdbd.service
             ├─1880 /usr/lib/systemd/systemd-userdbd
             ├─2270 systemd-userwork
             ├─2271 systemd-userwork
             └─2272 systemd-userwork

Now,
    Loaded: loaded (/usr/lib/systemd/system/systemd-userdbd.service; indirect; preset: disabled)
     Active: active (running) since Mon 2022-12-19 17:27:02 CET; 15s ago
TriggeredBy: ● systemd-userdbd.socket
       Docs: man:systemd-userdbd.service(8)
   Main PID: 2404 (systemd-userdbd)
     Status: "Processing requests..."
      Tasks: 4 (limit: 2272)
     Memory: 5.5M
        CPU: 89ms
     CGroup: /system.slice/systemd-userdbd.service
             ├─2404 /usr/lib/systemd/systemd-userdbd
             ├─2407 "systemd-userwork: waiting..."
             ├─2408 "systemd-userwork: waiting..."
             └─2409 "systemd-userwork: waiting..."
2022-12-19 18:33:24 +01:00

46 lines
1.2 KiB
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=User Database Manager
Documentation=man:systemd-userdbd.service(8)
Requires=systemd-userdbd.socket
After=systemd-userdbd.socket
Before=sysinit.target
DefaultDependencies=no
[Service]
CapabilityBoundingSet=CAP_DAC_READ_SEARCH CAP_SYS_RESOURCE
ExecStart={{ROOTLIBEXECDIR}}/systemd-userdbd
IPAddressDeny=any
LimitNOFILE={{HIGH_RLIMIT_NOFILE}}
LockPersonality=yes
MemoryDenyWriteExecute=yes
NoNewPrivileges=yes
PrivateDevices=yes
ProtectProc=invisible
ProtectControlGroups=yes
ProtectHome=yes
ProtectHostname=yes
ProtectKernelLogs=yes
ProtectKernelModules=yes
ProtectSystem=strict
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
SystemCallArchitectures=native
SystemCallErrorNumber=EPERM
SystemCallFilter=@system-service
Type=notify
{{SERVICE_WATCHDOG}}
[Install]
Also=systemd-userdbd.socket