NetworkManager/data/NetworkManager.service.in
Thomas Haller a708a172a6
core: increase limit of open file descriptors for NetworkManager.service
Note that POSIX select() can only handle up to 1024 descriptors. That
means, our code (and the libraries that we use) must not use select().

Note that libndp uses select(), which means NetworkManager will crash
when using file descriptors larger than 1023. On the other hand,
depriving NetworkManager of file descriptors will also crash it.
So libndp must be fixed ([1]).

[1] https://listman.redhat.com/archives/libndp-list/2021-February/msg00000.html

https://bugzilla.redhat.com/show_bug.cgi?id=1926599
2021-03-03 09:17:35 +01:00

37 lines
1.3 KiB
SYSTEMD

[Unit]
Description=Network Manager
Documentation=man:NetworkManager(8)
Wants=network.target
After=network-pre.target dbus.service
Before=network.target @DISTRO_NETWORK_SERVICE@
[Service]
Type=dbus
BusName=org.freedesktop.NetworkManager
ExecReload=/usr/bin/busctl call org.freedesktop.NetworkManager /org/freedesktop/NetworkManager org.freedesktop.NetworkManager Reload u 0
#ExecReload=/bin/kill -HUP $MAINPID
ExecStart=@sbindir@/NetworkManager --no-daemon
Restart=on-failure
# NM doesn't want systemd to kill its children for it
KillMode=process
# CAP_DAC_OVERRIDE: required to open /run/openvswitch/db.sock socket.
CapabilityBoundingSet=CAP_NET_ADMIN CAP_DAC_OVERRIDE CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT
ProtectSystem=true
ProtectHome=read-only
# We require file descriptors for DHCP etc. When activating many interfaces,
# the default limit of 1024 is easily reached.
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
Also=NetworkManager-dispatcher.service
# We want to enable NetworkManager-wait-online.service whenever this service
# is enabled. NetworkManager-wait-online.service has
# WantedBy=network-online.target, so enabling it only has an effect if
# network-online.target itself is enabled or pulled in by some other unit.
Also=NetworkManager-wait-online.service