systemd System and Service Manager
-CHANGES WITH 243 in spe:
+CHANGES WITH 244:
+
+ * Support for the cpuset cgroups v2 controller has been added.
+ Processes may be restricted to specific CPUs using the new
+ AllowedCPUs= setting, and to specific memory NUMA nodes using the new
+ AllowedMemoryNodes= setting.
+
+ * The signal used in restart jobs (as opposed to e.g. stop jobs) may
+ now be configured using a new RestartKillSignal= setting. This
+ allows units which signals to request termination to implement
+ different behaviour when stopping in preparation for a restart.
+
+ * "systemctl clean" may now be used also for socket, mount, and swap
+ units.
+
+ * systemd will also read configuration options from the EFI variable
+ SystemdOptions. This may be used to configure systemd behaviour when
+ modifying the kernel command line is inconvenient, but configuration
+ on disk is read too late, for example for the options related to
+ cgroup hierarchy setup. 'bootctl systemd-efi-options' may be used to
+ set the EFI variable.
+
+ * systemd will now disable printk ratelimits in early boot. This should
+ allow us to capture more logs from the early boot phase where normal
+ storage is not available and the kernel ring buffer is used for
+ logging. Configuration on the kernel command line has higher priority
+ and overrides the systemd setting.
+
+ systemd programs which log to /dev/kmsg directly use internal
+ ratelimits to prevent runaway logging. (Normally this is only used
+ during early boot, so in practice this change has very little
+ effect.)
+
+ * Unit files now support top level dropin directories of the form
+ <unit_type>.d/ (e.g. service.d/) that may be used to add configuration
+ that affects all corresponding unit files.
+
+ * systemctl gained support for 'stop --job-mode=triggering' which will
+ stop the specified unit and any units which could trigger it.
+
+ * Unit status display now includes units triggering and triggered by
+ the unit being shown.
+
+ * The RuntimeMaxSec= setting is now supported by scopes, not just
+ .service units. This is particularly useful for PAM sessions which
+ create a scope unit for the user login. systemd.runtime_max_sec=
+ setting may used with the pam_systemd module to limit the duration
+ of the PAM session, for example for time-limited logins.
+
+ * A new @pkey system call group is now defined to make it easier to
+ whitelist memory protection syscalls for containers and services
+ which need to use them.
+
+ * systemd-udevd: removed the 30s timeout for killing stale workers on
+ exit. systemd-udevd now waits for workers to finish. The hard-coded
+ exit timeout of 30s was too short for some large installations, where
+ driver initialization could be prematurely interrupted during initrd
+ processing if the root file system had been mounted and init was
+ preparing to switch root. If udevd is run without systemd and workers
+ are hanging while udevd receives an exit signal, udevd will now exit
+ when udev.event_timeout is reached for the last hanging worker. With
+ systemd, the exit timeout can additionally be configured using
+ TimeoutStopSec= in systemd-udevd.service.
+
+ * udev now provides a program (fido_id) that identifies FIDO CTAP1
+ ("U2F")/CTAP2 security tokens based on the usage declared in their
+ report and descriptor and outputs suitable environment variables.
+ This replaces the externally maintained whitelists of all known
+ security tokens that were used previously.
+
+ * Automatically generated autosuspend udev rules for whitelisted
+ devices have been imported from the Chromium OS project. This should
+ improve power saving with many more devices.
+
+ * udev gained a new "CONST{key}=value" setting that allows matching
+ against system-wide constants without forking a helper binary.
+ Currently "arch" and "virt" keys are supported.
+
+ * udev now opens CDROMs in non-exclusive mode when querying their
+ capabilities. This should fix issues where other programs trying to
+ use the CDROM cannot gain access to it, but carries a risk of
+ interfering with programs writing to the disk, if they did not open
+ the device in exclusive mode as they should.
+
+ * systemd-networkd does not create a default route for IPv4 link local
+ addressing anymore. The creation of the route was unexpected and was
+ breaking routing in various cases, but people who rely on it being
+ created implicitly will need to adjust. Such a route may be requested
+ with DefaultRouteOnDevice=yes.
+
+ Similarly, systemd-networkd will not assign a link-local IPv6 address
+ when IPv6 link-local routing is not enabled.
+
+ * Receive and transmit buffers may now be configured on links with
+ the new RxBufferSize= and TxBufferSize= settings.
+
+ * systemd-networkd may now advertise additional IPv6 routes. A new
+ [IPv6RoutePrefix] section with Route= and LifetimeSec= options is
+ now supported.
+
+ * systemd-networkd may now configure "next hop" routes using the
+ [NextHop] section and Gateway= and Id= settings.
+
+ * systemd-networkd will now retain DHCP config on restarts by default
+ (but this may be overridden using the KeepConfiguration= setting).
+ The default for SendRelease= has been changed to true.
+
+ * The DHCPv4 client now uses the OPTION_INFORMATION_REFRESH_TIME option
+ received from the server.
+
+ The client will use the received SIP server list if UseSIP=yes is
+ set.
+
+ The client may be configured to request specific options from the
+ server using a new RequestOptions= setting.
+
+ The client may be configured to send arbitrary options to the server
+ using a new SendOption= setting.
+
+ A new IPServiceType= setting has been added to configure the "IP
+ service type" value used by the client.
+
+ * The DHCPv6 client learnt a new PrefixDelegationHint= option to
+ request prefix hints in the DHCPv6 solicitation.
+
+ * The DHCPv4 server may be configured to send arbitrary options using
+ a new SendOption= setting.
+
+ * The DHCPv4 server may now be configured to emit SIP server list using
+ the new EmitSIP= and SIP= settings.
+
+ * systemd-networkd and networkctl may now renew DHCP leases on demand.
+ networkctl has a new 'networkctl renew' verb.
+
+ * systemd-networkd may now reconfigure links on demand. networkctl
+ gained two new verbs: "reload" will reload the configuration, and
+ "reconfigure DEVICE…" will reconfigure one or more devices.
+
+ * .network files may now match on SSID and BSSID of a wireless network,
+ i.e. the access point name and hardware address using the new SSID=
+ and BSSID= options. networkctl will display the current SSID and
+ BSSID for wireless links.
+
+ .network files may also match on the wireless network type using the
+ new WLANInterfaceType= option.
+
+ * systemd-networkd now includes default configuration that enables
+ link-local addressing when connected to an ad-hoc wireless network.
+
+ * systemd-networkd may configure the Traffic Control queueing
+ disciplines in the kernel using the new
+ [TrafficControlQueueingDiscipline] section and Parent=,
+ NetworkEmulatorDelaySec=, NetworkEmulatorDelayJitterSec=,
+ NetworkEmulatorPacketLimit=, NetworkEmulatorLossRate=,
+ NetworkEmulatorDuplicateRate= settings.
+
+ * systemd-tmpfiles gained a new w+ setting to append to files.
+
+ * systemd-analyze dump will now report when the memory configuration in
+ the kernel does not match what systemd has configured (usually,
+ because some external program has modified the kernel configuration
+ on its own).
+
+ * systemd-analyze gained a new --base-time= switch instructs the
+ 'calendar' verb to resolve times relative to that timestamp instead
+ of the present time.
+
+ * journalctl --update-catalog now produces deterministic output (making
+ reproducible image builds easier).
+
+ * A new devicetree-overlay setting is now documented in the Boot Loader
+ Specification.
+
+ * The default value of the WatchdogSec= setting used in systemd
+ services (the ones bundled with the project itself) may be set at
+ configuration time using the -Dservice-watchdog= setting. If set to
+ empty, the watchdogs will be disabled.
+
+ * systemd-resolved validates IP addresses in certificates now when GnuTLS
+ is being used.
+
+ * libcryptsetup >= 2.0.1 is now required.
+
+ * A configuration option -Duser-path= may be used to override the $PATH
+ used by the user service manager. The default is again to use the same
+ path as the system manager.
+
+ * The systemd-id128 tool gained a new switch "-u" (or "--uuid") for
+ outputting the 128bit IDs in UUID format (i.e. in the "canonical
+ representation").
+
+ * Service units gained a new sandboxing option ProtectKernelLogs= which
+ makes sure the program cannot get direct access to the kernel log
+ buffer anymore, i.e. the syslog() system call (not to be confused
+ with the API of the same name in libc, which is not affected), the
+ /proc/kmsg and /dev/kmsg nodes and the CAP_SYSLOG capability are made
+ inaccessible to the service. It's recommended to enable this setting
+ for all services that should not be able to read from or write to the
+ kernel log buffer, which are probably almost all.
+
+ Contributions from: Aaron Plattner, Alcaro, Anita Zhang, Balint Reczey,
+ Bastien Nocera, Baybal Ni, Benjamin Bouvier, Benjamin Gilbert, Carlo
+ Teubner, cbzxt, Chen Qi, Chris Down, Christian Rebischke, Claudio
+ Zumbo, ClydeByrdIII, crashfistfight, Cyprien Laplace, Daniel Edgecumbe,
+ Daniel Gorbea, Daniel Rusek, Daniel Stuart, Dan Streetman, David
+ Pedersen, David Tardon, Dimitri John Ledkov, Dominique Martinet, Donald
+ A. Cupp Jr, Evgeny Vereshchagin, Fabian Henneke, Filipe Brandenburger,
+ Franck Bui, Frantisek Sumsal, Georg Müller, Hans de Goede, Haochen
+ Tong, HATAYAMA Daisuke, Iwan Timmer, Jan Janssen, Jan Kundrát, Jan
+ Synacek, Jan Tojnar, Jay Strict, Jérémy Rosen, Jóhann B. Guðmundsson,
+ Jonas Jelten, Jonas Thelemann, Justin Trudell, J. Xing, Kai-Heng Feng,
+ Kenneth D'souza, Kevin Becker, Kevin Kuehler, Lennart Poettering,
+ Léonard Gérard, Lorenz Bauer, Luca Boccassi, Maciej Stanczew, Mario
+ Limonciello, Marko Myllynen, Mark Stosberg, Martin Wilck, matthiasroos,
+ Michael Biebl, Michael Olbrich, Michael Tretter, Michal Sekletar,
+ Michal Sekletár, Michal Suchanek, Mike Gilbert, Mike Kazantsev, Nicolas
+ Douma, nikolas, Norbert Lange, pan93412, Pascal de Bruijn, Paul Menzel,
+ Pavel Hrdina, Peter Wu, Philip Withnall, Piotr Drąg, Rafael Fontenelle,
+ Renaud Métrich, Riccardo Schirone, RoadrunnerWMC, Ronan Pigott, Ryan
+ Attard, Sebastian Wick, Serge, Siddharth Chandrasekara, Steve Ramage,
+ Steve Traylen, Susant Sahani, Thibault Nélis, Tim Teichmann, Tom
+ Fitzhenry, Tommy J, Torsten Hilbrich, Vito Caputo, ypf791, Yu Watanabe,
+ Zach Smith, Zbigniew Jędrzejewski-Szmek
+
+ – Warsaw, 2019-11-29
+
+CHANGES WITH 243:
* This release enables unprivileged programs (i.e. requiring neither
setuid nor file capabilities) to send ICMP Echo (i.e. ping) requests
been renamed to LinkLayerAddress=, and it now allows configuration of
IP addresses, too.
+ * systemd-networkd's handling of the kernel's disable_ipv6 sysctl is
+ simplified: systemd-networkd will disable the sysctl (enable IPv6) if
+ IPv6 configuration (static or DHCPv6) was found for a given
+ interface. It will not touch the sysctl otherwise.
+
+ * The order of entries is $PATH used by the user manager instance was
+ changed to put bin/ entries before the corresponding sbin/ entries.
+ It is recommended to not rely on this order, and only ever have one
+ binary with a given name in the system paths under /usr.
+
* A new tool systemd-network-generator has been added that may generate
.network, .netdev and .link files from IP configuration specified on
the kernel command line in the format used by Dracut.
* SuccessExitStatus=, RestartPreventExitStatus=, and
RestartForceExitStatus= now accept exit status names (e.g. "DATAERR"
is equivalent to "65"). Those exit status name mappings may be
- displayed with the sytemd-analyze exit-status verb describe above.
+ displayed with the systemd-analyze exit-status verb describe above.
* systemd-logind now exposes a per-session SetBrightness() bus call,
which may be used to securely change the brightness of a kernel
de Souza Cascardo, Theo Ouzhinski, Thiebaud Weksteen, Thomas Haller,
Thomas Weißschuh, Tomas Mraz, Tommi Rantala, Topi Miettinen, VD-Lycos,
ven, Wieland Hoffmann, William A. Kennington III, William Wold, Xi
- Ruoyao, Yuri Chornoivan, Yu Watanabe, Your Name, Zach Smith, Zbigniew
+ Ruoyao, Yuri Chornoivan, Yu Watanabe, Zach Smith, Zbigniew
Jędrzejewski-Szmek, Zhang Xianwei
- – Somewhere, SOME-TI-ME
+ – Camerino, 2019-09-03
CHANGES WITH 242:
projects / thirdparty / systemd.git / blobdiff