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NEWS
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systemd System and Service Manager
CHANGES WITH 223:
* The python-systemd code has been removed from the systemd repository.
A new repository has been created which accommodates the code from
now on, and we kindly ask distributions to create a separate package
for this: https://github.com/systemd/python-systemd
* The systemd daemon will now reload its main configuration
(/etc/systemd/system.conf) on daemon-reload.
* sd-dhcp now exposes vendor specific extensions via
sd_dhcp_lease_get_vendor_specific().
* systemd-networkd gained a number of new configuration options.
- A new boolean configuration option for TAP devices called
'VNetHeader='. If set, the IFF_VNET_HDR flag is set for the
device, thus allowing to send and receive GSO packets.
- A new tunnel configuration option called 'CopyDSCP='.
If enabled, the DSCP field of ip6 tunnels is copied into the
decapsulated packet.
- A set of boolean bridge configuration options were added.
'UseBPDU=', 'HairPin=', 'FastLeave=', 'AllowPortToBeRoot=',
and 'UnicastFlood=' are now parsed by networkd and applied to the
respective bridge link device via the respective IFLA_BRPORT_*
netlink attribute.
- A new string configuration option to override the hostname sent
to a DHCP server, called 'Hostname='. If set and 'SendHostname='
is true, networkd will use the configured hostname instead of the
system hostname when sending DHCP requests.
- A new tunnel configuration option called 'IPv6FlowLabel='. If set,
networkd will configure the IPv6 flow-label of the tunnel device
according to RFC2460.
- The 'macvtap' virtual network devices are now supported, similar to
the already supported 'macvlan' devices.
* systemd-resolved now implements RFC5452 to improve resilience against
cache poisoning. Additionally, source port randomization is enabled
by default to further protect against DNS spoofing attacks.
* nss-mymachines now supports translating UIDs and GIDs of running
containers with user-namespaces enabled. If a container 'foo'
translates a host uid 'UID' to the container uid 'TUID', then
nss-mymachines will also map uid 'UID' to/from username 'vu-foo-TUID'
(with 'foo' and 'TUID' replaced accordingly). Similarly, groups are
mapped as 'vg-foo-TGID'.
Contributions from: Beniamino Galvani, cee1, Christian Hesse, Daniel
Buch, Daniel Mack, daurnimator, David Herrmann, Dimitri John Ledkov,
HATAYAMA Daisuke, Ivan Shapovalov, Jan Alexander Steffens (heftig),
Johan Ouwerkerk, Jose Carlos Venegas Munoz, Karel Zak, Kay Sievers,
Lennart Poettering, Lidong Zhong, Martin Pitt, Michael Biebl, Michael
Olbrich, Michal Schmidt, Michal Sekletar, Mike Gilbert, Namhyung Kim,
Nick Owens, Peter Hutterer, Richard Maw, Steven Allen, Sungbae Yoo,
Susant Sahani, Thomas Blume, Thomas Hindoe Paaboel Andersen, Tom
Gundersen, Torstein Husebø, Umut Tezduyar Lindskog, Vito Caputo,
Vivenzio Pagliari, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2015-07-29
CHANGES WITH 222:
* udev does not longer support the WAIT_FOR_SYSFS= key in udev rules.
There are no known issues with current sysfs, and udev does not need
or should be used to work around such bugs.
* udev does no longer enable USB HID power management. Several reports
indicate, that some devices cannot handle that setting.
* The udev accelerometer helper was removed. The functionality
is now fully included in iio-sensor-proxy. But this means,
older iio-sensor-proxy versions will no longer provide
accelerometer/orientation data with this systemd version.
Please upgrade iio-sensor-proxy to version 1.0.
* networkd gained a new configuration option IPv6PrivacyExtensions=
which enables IPv6 privacy extensions (RFC 4941, "Privacy Extensions
for Stateless Address") on selected networks.
* For the sake of fewer build-time dependencies and less code in the
main repository, the python bindings are about to be removed in the
next release. A new repository has been created which accommodates
the code from now on, and we kindly ask distributions to create a
separate package for this. The removal will take place in v223.
https://github.com/systemd/python-systemd
Contributions from: Abdo Roig-Maranges, Andrew Eikum, Bastien Nocera,
Cédric Delmas, Christian Hesse, Christos Trochalakis, Daniel Mack,
daurnimator, David Herrmann, Dimitri John Ledkov, Eric Biggers, Eric
Cook, Felipe Sateler, Geert Jansen, Gerd Hoffmann, Gianpaolo Macario,
Greg Kroah-Hartman, Iago López Galeiras, Jan Alexander Steffens
(heftig), Jan Engelhardt, Jay Strict, Kay Sievers, Lennart Poettering,
Markus Knetschke, Martin Pitt, Michael Biebl, Michael Marineau, Michal
Sekletar, Miguel Bernal Marin, Peter Hutterer, Richard Maw, rinrinne,
Susant Sahani, Thomas Hindoe Paaboel Andersen, Tom Gundersen, Torstein
Husebø, Vedran Miletić, WaLyong Cho, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2015-07-07
CHANGES WITH 221:
* The sd-bus.h and sd-event.h APIs have now been declared
stable and have been added to the official interface of
libsystemd.so. sd-bus implements an alternative D-Bus client
library, that is relatively easy to use, very efficient and
supports both classic D-Bus as well as kdbus as transport
backend. sd-event is a generic event loop abstraction that
is built around Linux epoll, but adds features such as event
prioritization or efficient timer handling. Both APIs are good
choices for C programs looking for a bus and/or event loop
implementation that is minimal and does not have to be
portable to other kernels.
* kdbus support is no longer compile-time optional. It is now
always built-in. However, it can still be disabled at
runtime using the kdbus=0 kernel command line setting, and
that setting may be changed to default to off, by specifying
--disable-kdbus at build-time. Note though that the kernel
command line setting has no effect if the kdbus.ko kernel
module is not installed, in which case kdbus is (obviously)
also disabled. We encourage all downstream distributions to
begin testing kdbus by adding it to the kernel images in the
development distributions, and leaving kdbus support in
systemd enabled.
* The minimal required util-linux version has been bumped to
2.26.
* Support for chkconfig (--enable-chkconfig) was removed in
favor of calling an abstraction tool
/lib/systemd/systemd-sysv-install. This needs to be
implemented for your distribution. See "SYSV INIT.D SCRIPTS"
in README for details.
* If there's a systemd unit and a SysV init script for the
same service name, and the user executes "systemctl enable"
for it (or a related call), then this will now enable both
(or execute the related operation on both), not just the
unit.
* The libudev API documentation has been converted from gtkdoc
into man pages.
* gudev has been removed from the systemd tree, it is now an
external project.
* The systemd-cgtop tool learnt a new --raw switch to generate
"raw" (machine parsable) output.
* networkd's IPForwarding= .network file setting learnt the
new setting "kernel", which ensures that networkd does not
change the IP forwarding sysctl from the default kernel
state.
* The systemd-logind bus API now exposes a new boolean
property "Docked" that reports whether logind considers the
system "docked", i.e. connected to a docking station or not.
Contributions from: Alex Crawford, Andreas Pokorny, Andrei
Borzenkov, Charles Duffy, Colin Guthrie, Cristian Rodríguez,
Daniele Medri, Daniel Hahler, Daniel Mack, David Herrmann,
David Mohr, Dimitri John Ledkov, Djalal Harouni, dslul, Ed
Swierk, Eric Cook, Filipe Brandenburger, Gianpaolo Macario,
Harald Hoyer, Iago López Galeiras, Igor Vuk, Jan Synacek,
Jason Pleau, Jason S. McMullan, Jean Delvare, Jeff Huang,
Jonathan Boulle, Karel Zak, Kay Sievers, kloun, Lennart
Poettering, Marc-Antoine Perennou, Marcel Holtmann, Mario
Limonciello, Martin Pitt, Michael Biebl, Michael Olbrich,
Michal Schmidt, Mike Gilbert, Nick Owens, Pablo Lezaeta Reyes,
Patrick Donnelly, Pavel Odvody, Peter Hutterer, Philip
Withnall, Ronny Chevalier, Simon McVittie, Susant Sahani,
Thomas Hindoe Paaboel Andersen, Tom Gundersen, Torstein
Husebø, Umut Tezduyar Lindskog, Viktar Vauchkevich, Werner
Fink, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2015-06-19
CHANGES WITH 220:
* The gudev library has been extracted into a separate repository
available at: https://git.gnome.org/browse/libgudev/
It is now managed as part of the Gnome project. Distributions
are recommended to pass --disable-gudev to systemd and use
gudev from the Gnome project instead. gudev is still included
in systemd, for now. It will be removed soon, though. Please
also see the announcement-thread on systemd-devel:
http://lists.freedesktop.org/archives/systemd-devel/2015-May/032070.html
* systemd now exposes a CPUUsageNSec= property for each
service unit on the bus, that contains the overall consumed
CPU time of a service (the sum of what each process of the
service consumed). This value is only available if
CPUAccounting= is turned on for a service, and is then shown
in the "systemctl status" output.
* Support for configuring alternative mappings of the old SysV
runlevels to systemd targets has been removed. They are now
hardcoded in a way that runlevels 2, 3, 4 all map to
multi-user.target and 5 to graphical.target (which
previously was already the default behaviour).
* The auto-mounter logic gained support for mount point
expiry, using a new TimeoutIdleSec= setting in .automount
units. (Also available as x-systemd.idle-timeout= in /etc/fstab).
* The EFI System Partition (ESP) as mounted to /boot by
systemd-efi-boot-generator will now be unmounted
automatically after 2 minutes of not being used. This should
minimize the risk of ESP corruptions.
* New /etc/fstab options x-systemd.requires= and
x-systemd.requires-mounts-for= are now supported to express
additional dependencies for mounts. This is useful for
journalling file systems that support external journal
devices or overlay file systems that require underlying file
systems to be mounted.
* systemd does not support direct live-upgrades (via systemctl
daemon-reexec) from versions older than v44 anymore. As no
distribution we are aware of shipped such old versions in a
stable release this should not be problematic.
* When systemd forks off a new per-connection service instance
it will now set the $REMOTE_ADDR environment variable to the
remote IP address, and $REMOTE_PORT environment variable to
the remote IP port. This behaviour is similar to the
corresponding environment variables defined by CGI.
* systemd-networkd gained support for uplink failure
detection. The BindCarrier= option allows binding interface
configuration dynamically to the link sense of other
interfaces. This is useful to achieve behaviour like in
network switches.
* systemd-networkd gained support for configuring the DHCP
client identifier to use when requesting leases.
* systemd-networkd now has a per-network UseNTP= option to
configure whether NTP server information acquired via DHCP
is passed on to services like systemd-timesyncd.
* systemd-networkd gained support for vti6 tunnels.
* Note that systemd-networkd manages the sysctl variable
/proc/sys/net/ipv[46]/conf/*/forwarding for each interface
it is configured for since v219. The variable controls IP
forwarding, and is a per-interface alternative to the global
/proc/sys/net/ipv[46]/ip_forward. This setting is
configurable in the IPForward= option, which defaults to
"no". This means if networkd is used for an interface it is
no longer sufficient to set the global sysctl option to turn
on IP forwarding! Instead, the .network file option
IPForward= needs to be turned on! Note that the
implementation of this behaviour was broken in v219 and has
been fixed in v220.
* Many bonding and vxlan options are now configurable in
systemd-networkd.
* systemd-nspawn gained a new --property= setting to set unit
properties for the container scope. This is useful for
setting resource parameters (e.g "CPUShares=500") on
containers started from the command line.
* systemd-nspawn gained a new --private-users= switch to make
use of user namespacing available on recent Linux kernels.
* systemd-nspawn may now be called as part of a shell pipeline
in which case the pipes used for stdin and stdout are passed
directly to the process invoked in the container, without
indirection via a pseudo tty.
* systemd-nspawn gained a new switch to control the UNIX
signal to use when killing the init process of the container
when shutting down.
* systemd-nspawn gained a new --overlay= switch for mounting
overlay file systems into the container using the new kernel
overlayfs support.
* When a container image is imported via systemd-importd and
the host file system is not btrfs, a loopback block device
file is created in /var/lib/machines.raw with a btrfs file
system inside. It is then mounted to /var/lib/machines to
enable btrfs features for container management. The loopback
file and btrfs file system is grown as needed when container
images are imported via systemd-importd.
* systemd-machined/systemd-importd gained support for btrfs
quota, to enforce container disk space limits on disk. This
is exposed in "machinectl set-limit".
* systemd-importd now can import containers from local .tar,
.raw and .qcow2 images, and export them to .tar and .raw. It
can also import dkr v2 images now from the network (on top
of v1 as before).
* systemd-importd gained support for verifying downloaded
images with gpg2 (previously only gpg1 was supported).
* systemd-machined, systemd-logind, systemd: most bus calls
are now accessible to unprivileged processes via
PolicyKit. Also, systemd-logind will now allow users to kill
their own sessions without further privileges or
authorization.
* systemd-shutdownd has been removed. This service was
previously responsible for implementing scheduled shutdowns
as exposed in /usr/bin/shutdown's time parameter. This
functionality has now been moved into systemd-logind and is
accessible via a bus interface.
* "systemctl reboot" gained a new switch --firmware-setup that
can be used to reboot into the EFI firmware setup, if that
is available. systemd-logind now exposes an API on the bus
to trigger such reboots, in case graphical desktop UIs want
to cover this functionality.
* "systemctl enable", "systemctl disable" and "systemctl mask"
now support a new "--now" switch. If specified the units
that are enabled will also be started, and the ones
disabled/masked also stopped.
* The Gummiboot EFI boot loader tool has been merged into
systemd, and renamed to "systemd-boot". The bootctl tool has been
updated to support systemd-boot.
* An EFI kernel stub has been added that may be used to create
kernel EFI binaries that contain not only the actual kernel,
but also an initrd, boot splash, command line and OS release
information. This combined binary can then be signed as a
single image, so that the firmware can verify it all in one
step. systemd-boot has special support for EFI binaries created
like this and can extract OS release information from them
and show them in the boot menu. This functionality is useful
to implement cryptographically verified boot schemes.
* Optional support has been added to systemd-fsck to pass
fsck's progress report to an AF_UNIX socket in the file
system.
* udev will no longer create device symlinks for all block
devices by default. A blacklist for excluding special block
devices from this logic has been turned into a whitelist
that requires picking block devices explicitly that require
device symlinks.
* A new (currently still internal) API sd-device.h has been
added to libsystemd. This modernized API is supposed to
replace libudev eventually. In fact, already much of libudev
is now just a wrapper around sd-device.h.
* A new hwdb database for storing metadata about pointing
stick devices has been added.
* systemd-tmpfiles gained support for setting file attributes
similar to the "chattr" tool with new 'h' and 'H' lines.
* systemd-journald will no longer unconditionally set the
btrfs NOCOW flag on new journal files. This is instead done
with tmpfiles snippet using the new 'h' line type. This
allows easy disabling of this logic, by masking the
journal-nocow.conf tmpfiles file.
* systemd-journald will now translate audit message types to
human readable identifiers when writing them to the
journal. This should improve readability of audit messages.
* The LUKS logic gained support for the offset= and skip=
options in /etc/crypttab, as previously implemented by
Debian.
* /usr/lib/os-release gained a new optional field VARIANT= for
distributions that support multiple variants (such as a
desktop edition, a server edition, ...)
Contributions from: Aaro Koskinen, Adam Goode, Alban Crequy,
Alberto Fanjul Alonso, Alexander Sverdlin, Alex Puchades, Alin
Rauta, Alison Chaiken, Andrew Jones, Arend van Spriel,
Benedikt Morbach, Benjamin Franzke, Benjamin Tissoires, Blaž
Tomažič, Chris Morgan, Chris Morin, Colin Walters, Cristian
Rodríguez, Daniel Buch, Daniel Drake, Daniele Medri, Daniel
Mack, Daniel Mustieles, daurnimator, Davide Bettio, David
Herrmann, David Strauss, Didier Roche, Dimitri John Ledkov,
Eric Cook, Gavin Li, Goffredo Baroncelli, Hannes Reinecke,
Hans de Goede, Hans-Peter Deifel, Harald Hoyer, Iago López
Galeiras, Ivan Shapovalov, Jan Engelhardt, Jan Janssen, Jan
Pazdziora, Jan Synacek, Jasper St. Pierre, Jay Faulkner, John
Paul Adrian Glaubitz, Jonathon Gilbert, Karel Zak, Kay
Sievers, Koen Kooi, Lennart Poettering, Lubomir Rintel, Lucas
De Marchi, Lukas Nykryn, Lukas Rusak, Lukasz Skalski, Łukasz
Stelmach, Mantas Mikulėnas, Marc-Antoine Perennou, Marcel
Holtmann, Martin Pitt, Mathieu Chevrier, Matthew Garrett,
Michael Biebl, Michael Marineau, Michael Olbrich, Michal
Schmidt, Michal Sekletar, Mirco Tischler, Nir Soffer, Patrik
Flykt, Pavel Odvody, Peter Hutterer, Peter Lemenkov, Peter
Waller, Piotr Drąg, Raul Gutierrez S, Richard Maw, Ronny
Chevalier, Ross Burton, Sebastian Rasmussen, Sergey Ptashnick,
Seth Jennings, Shawn Landden, Simon Farnsworth, Stefan Junker,
Stephen Gallagher, Susant Sahani, Sylvain Plantefève, Thomas
Haller, Thomas Hindoe Paaboel Andersen, Tobias Hunger, Tom
Gundersen, Torstein Husebø, Umut Tezduyar Lindskog, Will
Woods, Zachary Cook, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2015-05-22
CHANGES WITH 219:
* Introduce a new API "sd-hwdb.h" for querying the hardware
metadata database. With this minimal interface one can query
and enumerate the udev hwdb, decoupled from the old libudev
library. libudev's interface for this is now only a wrapper
around sd-hwdb. A new tool systemd-hwdb has been added to
interface with and update the database.
* When any of systemd's tools copies files (for example due to
tmpfiles' C lines) a btrfs reflink will attempted first,
before bytewise copying is done.
* systemd-nspawn gained a new --ephemeral switch. When
specified a btrfs snapshot is taken of the container's root
directory, and immediately removed when the container
terminates again. Thus, a container can be started whose
changes never alter the container's root directory, and are
lost on container termination. This switch can also be used
for starting a container off the root file system of the
host without affecting the host OS. This switch is only
available on btrfs file systems.
* systemd-nspawn gained a new --template= switch. It takes the
path to a container tree to use as template for the tree
specified via --directory=, should that directory be
missing. This allows instantiating containers dynamically,
on first run. This switch is only available on btrfs file
systems.
* When a .mount unit refers to a mount point on which multiple
mounts are stacked, and the .mount unit is stopped all of
the stacked mount points will now be unmounted until no
mount point remains.
* systemd now has an explicit notion of supported and
unsupported unit types. Jobs enqueued for unsupported unit
types will now fail with an "unsupported" error code. More
specifically .swap, .automount and .device units are not
supported in containers, .busname units are not supported on
non-kdbus systems. .swap and .automount are also not
supported if their respective kernel compile time options
are disabled.
* machinectl gained support for two new "copy-from" and
"copy-to" commands for copying files from a running
container to the host or vice versa.
* machinectl gained support for a new "bind" command to bind
mount host directories into local containers. This is
currently only supported for nspawn containers.
* networkd gained support for configuring bridge forwarding
database entries (fdb) from .network files.
* A new tiny daemon "systemd-importd" has been added that can
download container images in tar, raw, qcow2 or dkr formats,
and make them available locally in /var/lib/machines, so
that they can run as nspawn containers. The daemon can GPG
verify the downloads (not supported for dkr, since it has no
provisions for verifying downloads). It will transparently
decompress bz2, xz, gzip compressed downloads if necessary,
and restore sparse files on disk. The daemon uses privilege
separation to ensure the actual download logic runs with
fewer privileges than the daemon itself. machinectl has
gained new commands "pull-tar", "pull-raw" and "pull-dkr" to
make the functionality of importd available to the
user. With this in place the Fedora and Ubuntu "Cloud"
images can be downloaded and booted as containers unmodified
(the Fedora images lack the appropriate GPG signature files
currently, so they cannot be verified, but this will change
soon, hopefully). Note that downloading images is currently
only fully supported on btrfs.
* machinectl is now able to list container images found in
/var/lib/machines, along with some metadata about sizes of
disk and similar. If the directory is located on btrfs and
quota is enabled, this includes quota display. A new command
"image-status" has been added that shows additional
information about images.
* machinectl is now able to clone container images
efficiently, if the underlying file system (btrfs) supports
it, with the new "machinectl list-images" command. It also
gained commands for renaming and removing images, as well as
marking them read-only or read-write (supported also on
legacy file systems).
* networkd gained support for collecting LLDP network
announcements, from hardware that supports this. This is
shown in networkctl output.
* systemd-run gained support for a new -t (--pty) switch for
invoking a binary on a pty whose input and output is
connected to the invoking terminal. This allows executing
processes as system services while interactively
communicating with them via the terminal. Most interestingly
this is supported across container boundaries. Invoking
"systemd-run -t /bin/bash" is an alternative to running a
full login session, the difference being that the former
will not register a session, nor go through the PAM session
setup.
* tmpfiles gained support for a new "v" line type for creating
btrfs subvolumes. If the underlying file system is a legacy
file system, this automatically degrades to creating a
normal directory. Among others /var/lib/machines is now
created like this at boot, should it be missing.
* The directory /var/lib/containers/ has been deprecated and
been replaced by /var/lib/machines. The term "machines" has
been used in the systemd context as generic term for both
VMs and containers, and hence appears more appropriate for
this, as the directory can also contain raw images bootable
via qemu/kvm.
* systemd-nspawn when invoked with -M but without --directory=
or --image= is now capable of searching for the container
root directory, subvolume or disk image automatically, in
/var/lib/machines. [email protected] has been updated
to make use of this, thus allowing it to be used for raw
disk images, too.
* A new machines.target unit has been introduced that is
supposed to group all containers/VMs invoked as services on
the system. [email protected] has been updated to
integrate with that.
* machinectl gained a new "start" command, for invoking a
container as a service. "machinectl start foo" is mostly
equivalent to "systemctl start [email protected]",
but handles escaping in a nicer way.
* systemd-nspawn will now mount most of the cgroupfs tree
read-only into each container, with the exception of the
container's own subtree in the name=systemd hierarchy.
* journald now sets the special FS_NOCOW file flag for its
journal files. This should improve performance on btrfs, by
avoiding heavy fragmentation when journald's write-pattern
is used on COW file systems. It degrades btrfs' data
integrity guarantees for the files to the same levels as for
ext3/ext4 however. This should be OK though as journald does
its own data integrity checks and all its objects are
checksummed on disk. Also, journald should handle btrfs disk
full events a lot more gracefully now, by processing SIGBUS
errors, and not relying on fallocate() anymore.
* When journald detects that journal files it is writing to
have been deleted it will immediately start new journal
files.
* systemd now provides a way to store file descriptors
per-service in PID 1.This is useful for daemons to ensure
that fds they require are not lost during a daemon
restart. The fds are passed to the daemon on the next
invocation in the same way socket activation fds are
passed. This is now used by journald to ensure that the
various sockets connected to all the system's stdout/stderr
are not lost when journald is restarted. File descriptors
may be stored in PID 1 via the sd_pid_notify_with_fds() API,
an extension to sd_notify(). Note that a limit is enforced
on the number of fds a service can store in PID 1, and it
defaults to 0, so that no fds may be stored, unless this is
explicitly turned on.
* The default TERM variable to use for units connected to a
terminal, when no other value is explicitly is set is now
vt220 rather than vt102. This should be fairly safe still,
but allows PgUp/PgDn work.
* The /etc/crypttab option header= as known from Debian is now
supported.
* "loginctl user-status" and "loginctl session-status" will
now show the last 10 lines of log messages of the
user/session following the status output. Similar,
"machinectl status" will show the last 10 log lines
associated with a virtual machine or container
service. (Note that this is usually not the log messages
done in the VM/container itself, but simply what the
container manager logs. For nspawn this includes all console
output however.)
* "loginctl session-status" without further argument will now
show the status of the session of the caller. Similar,
"lock-session", "unlock-session", "activate",
"enable-linger", "disable-linger" may now be called without
session/user parameter in which case they apply to the
caller's session/user.
* An X11 session scriptlet is now shipped that uploads
$DISPLAY and $XAUTHORITY into the environment of the systemd
--user daemon if a session begins. This should improve
compatibility with X11 enabled applications run as systemd
user services.
* Generators are now subject to masking via /etc and /run, the
same way as unit files.
* networkd .network files gained support for configuring
per-link IPv4/IPv6 packet forwarding as well as IPv4
masquerading. This is by default turned on for veth links to
containers, as registered by systemd-nspawn. This means that
nspawn containers run with --network-veth will now get
automatic routed access to the host's networks without any
further configuration or setup, as long as networkd runs on
the host.
* systemd-nspawn gained the --port= (-p) switch to expose TCP
or UDP posts of a container on the host. With this in place
it is possible to run containers with private veth links
(--network-veth), and have their functionality exposed on
the host as if their services were running directly on the
host.
* systemd-nspawn's --network-veth switch now gained a short
version "-n", since with the changes above it is now truly
useful out-of-the-box. The [email protected] has been
updated to make use of it too by default.
* systemd-nspawn will now maintain a per-image R/W lock, to
ensure that the same image is not started more than once
writable. (It's OK to run an image multiple times
simultaneously in read-only mode.)
* systemd-nspawn's --image= option is now capable of
dissecting and booting MBR and GPT disk images that contain
only a single active Linux partition. Previously it
supported only GPT disk images with proper GPT type
IDs. This allows running cloud images from major
distributions directly with systemd-nspawn, without
modification.
* In addition to collecting mouse dpi data in the udev
hardware database, there's now support for collecting angle
information for mouse scroll wheels. The database is
supposed to guarantee similar scrolling behavior on mice
that it knows about. There's also support for collecting
information about Touchpad types.
* udev's input_id built-in will now also collect touch screen
dimension data and attach it to probed devices.
* /etc/os-release gained support for a Distribution Privacy
Policy link field.
* networkd gained support for creating "ipvlan", "gretap",
"ip6gre", "ip6gretap" and "ip6tnl" network devices.
* systemd-tmpfiles gained support for "a" lines for setting
ACLs on files.
* systemd-nspawn will now mount /tmp in the container to
tmpfs, automatically.
* systemd now exposes the memory.usage_in_bytes cgroup
attribute and shows it for each service in the "systemctl
status" output, if available.
* When the user presses Ctrl-Alt-Del more than 7x within 2s an
immediate reboot is triggered. This useful if shutdown is
hung and is unable to complete, to expedite the
operation. Note that this kind of reboot will still unmount
all file systems, and hence should not result in fsck being
run on next reboot.
* A .device unit for an optical block device will now be
considered active only when a medium is in the drive. Also,
mount units are now bound to their backing devices thus
triggering automatic unmounting when devices become
unavailable. With this in place systemd will now
automatically unmount left-over mounts when a CD-ROM is
ejected or an USB stick is yanked from the system.
* networkd-wait-online now has support for waiting for
specific interfaces only (with globbing), and for giving up
after a configurable timeout.
* networkd now exits when idle. It will be automatically
restarted as soon as interfaces show up, are removed or
change state. networkd will stay around as long as there is
at least one DHCP state machine or similar around, that keep
it non-idle.
* networkd may now configure IPv6 link-local addressing in
addition to IPv4 link-local addressing.
* The IPv6 "token" for use in SLAAC may now be configured for
each .network interface in networkd.
* Routes configured with networkd may now be assigned a scope
in .network files.
* networkd's [Match] sections now support globbing and lists
of multiple space-separated matches per item.
Contributions from: Alban Crequy, Alin Rauta, Andrey Chaser,
Bastien Nocera, Bruno Bottazzini, Carlos Garnacho, Carlos
Morata Castillo, Chris Atkinson, Chris J. Arges, Christian
Kirbach, Christian Seiler, Christoph Brill, Colin Guthrie,
Colin Walters, Cristian Rodríguez, Daniele Medri, Daniel Mack,
Dave Reisner, David Herrmann, Djalal Harouni, Erik Auerswald,
Filipe Brandenburger, Frank Theile, Gabor Kelemen, Gabriel de
Perthuis, Harald Hoyer, Hui Wang, Ivan Shapovalov, Jan
Engelhardt, Jan Synacek, Jay Faulkner, Johannes Hölzl, Jonas
Ådahl, Jonathan Boulle, Josef Andersson, Kay Sievers, Ken
Werner, Lennart Poettering, Lucas De Marchi, Lukas Märdian,
Lukas Nykryn, Lukasz Skalski, Luke Shumaker, Mantas Mikulėnas,
Manuel Mendez, Marcel Holtmann, Marc Schmitzer, Marko
Myllynen, Martin Pitt, Maxim Mikityanskiy, Michael Biebl,
Michael Marineau, Michael Olbrich, Michal Schmidt, Mindaugas
Baranauskas, Moez Bouhlel, Naveen Kumar, Patrik Flykt, Paul
Martin, Peter Hutterer, Peter Mattern, Philippe De Swert,
Piotr Drąg, Rafael Ferreira, Rami Rosen, Robert Milasan, Ronny
Chevalier, Sangjung Woo, Sebastien Bacher, Sergey Ptashnick,
Shawn Landden, Stéphane Graber, Susant Sahani, Sylvain
Plantefève, Thomas Hindoe Paaboel Andersen, Tim JP, Tom
Gundersen, Topi Miettinen, Torstein Husebø, Umut Tezduyar
Lindskog, Veres Lajos, Vincent Batts, WaLyong Cho, Wieland
Hoffmann, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2015-02-16
CHANGES WITH 218:
* When querying unit file enablement status (for example via
"systemctl is-enabled"), a new state "indirect" is now known
which indicates that a unit might not be enabled itself, but
another unit listed in its Alias= setting might be.
* Similar to the various existing ConditionXYZ= settings for
units there are now matching AssertXYZ= settings. While
failing conditions cause a unit to be skipped, but its job
to succeed, failing assertions declared like this will cause
a unit start operation and its job to fail.
* hostnamed now knows a new chassis type "embedded".
* systemctl gained a new "edit" command. When used on a unit
file this allows extending unit files with .d/ drop-in
configuration snippets or editing the full file (after
copying it from /usr/lib to /etc). This will invoke the
user's editor (as configured with $EDITOR), and reload the
modified configuration after editing.
* "systemctl status" now shows the suggested enablement state
for a unit, as declared in the (usually vendor-supplied)
system preset files.
* nss-myhostname will now resolve the single-label host name
"gateway" to the locally configured default IP routing
gateways, ordered by their metrics. This assigns a stable
name to the used gateways, regardless which ones are
currently configured. Note that the name will only be
resolved after all other name sources (if nss-myhostname is
configured properly) and should hence not negatively impact
systems that use the single-label host name "gateway" in
other contexts.
* systemd-inhibit now allows filtering by mode when listing
inhibitors.
* Scope and service units gained a new "Delegate" boolean
property, which when set allows processes running inside the
unit to further partition resources. This is primarily
useful for systemd user instances as well as container
managers.
* journald will now pick up audit messages directly from
the kernel, and log them like any other log message. The
audit fields are split up and fully indexed. This means that
journalctl in many ways is now a (nicer!) alternative to
ausearch, the traditional audit client. Note that this
implements only a minimal audit client, if you want the
special audit modes like reboot-on-log-overflow, please use
the traditional auditd instead, which can be used in
parallel to journald.
* The ConditionSecurity= unit file option now understands the
special string "audit" to check whether auditing is
available.
* journalctl gained two new commands --vacuum-size= and
--vacuum-time= to delete old journal files until the
remaining ones take up no more the specified size on disk,
or are not older than the specified time.
* A new, native PPPoE library has been added to sd-network,
systemd's library of light-weight networking protocols. This
library will be used in a future version of networkd to
enable PPPoE communication without an external pppd daemon.
* The busctl tool now understands a new "capture" verb that
works similar to "monitor", but writes a packet capture
trace to STDOUT that can be redirected to a file which is
compatible with libcap's capture file format. This can then
be loaded in Wireshark and similar tools to inspect bus
communication.
* The busctl tool now understands a new "tree" verb that shows
the object trees of a specific service on the bus, or of all
services.
* The busctl tool now understands a new "introspect" verb that
shows all interfaces and members of objects on the bus,
including their signature and values. This is particularly
useful to get more information about bus objects shown by
the new "busctl tree" command.
* The busctl tool now understands new verbs "call",
"set-property" and "get-property" for invoking bus method
calls, setting and getting bus object properties in a
friendly way.
* busctl gained a new --augment-creds= argument that controls
whether the tool shall augment credential information it
gets from the bus with data from /proc, in a possibly
race-ful way.
* nspawn's --link-journal= switch gained two new values
"try-guest" and "try-host" that work like "guest" and
"host", but do not fail if the host has no persistent
journalling enabled. -j is now equivalent to
--link-journal=try-guest.
* macvlan network devices created by nspawn will now have
stable MAC addresses.
* A new SmackProcessLabel= unit setting has been added, which
controls the SMACK security label processes forked off by
the respective unit shall use.
* If compiled with --enable-xkbcommon, systemd-localed will
verify x11 keymap settings by compiling the given keymap. It
will spew out warnings if the compilation fails. This
requires libxkbcommon to be installed.
* When a coredump is collected a larger number of metadata
fields is now collected and included in the journal records
created for it. More specifically control group membership,
environment variables, memory maps, working directory,
chroot directory, /proc/$PID/status, and a list of open file
descriptors is now stored in the log entry.
* The udev hwdb now contains DPI information for mice. For
details see:
http://who-t.blogspot.de/2014/12/building-a-dpi-database-for-mice.html
* All systemd programs that read standalone configuration
files in /etc now also support a corresponding series of
.conf.d configuration directories in /etc/, /run/,
/usr/local/lib/, /usr/lib/, and (if configured with
--enable-split-usr) /lib/. In particular, the following
configuration files now have corresponding configuration
directories: system.conf user.conf, logind.conf,
journald.conf, sleep.conf, bootchart.conf, coredump.conf,
resolved.conf, timesyncd.conf, journal-remote.conf, and
journal-upload.conf. Note that distributions should use the
configuration directories in /usr/lib/; the directories in
/etc/ are reserved for the system administrator.
* systemd-rfkill will no longer take the rfkill device name
into account when storing rfkill state on disk, as the name
might be dynamically assigned and not stable. Instead, the
ID_PATH udev variable combined with the rfkill type (wlan,
bluetooth, ...) is used.
* A new service systemd-machine-id-commit.service has been
added. When used on systems where /etc is read-only during
boot, and /etc/machine-id is not initialized (but an empty
file), this service will copy the temporary machine ID
created as replacement into /etc after the system is fully
booted up. This is useful for systems that are freshly
installed with a non-initialized machine ID, but should get
a fixed machine ID for subsequent boots.
* networkd's .netdev files now provide a large set of
configuration parameters for VXLAN devices. Similar, the
bridge port cost parameter is now configurable in .network
files. There's also new support for configuring IP source
routing. networkd .link files gained support for a new
OriginalName= match that is useful to match against the
original interface name the kernel assigned. .network files
may include MTU= and MACAddress= fields for altering the MTU
and MAC address while being connected to a specific network
interface.
* The LUKS logic gained supported for configuring
UUID-specific key files. There's also new support for naming
LUKS device from the kernel command line, using the new
luks.name= argument.
* Timer units may now be transiently created via the bus API
(this was previously already available for scope and service
units). In addition it is now possible to create multiple
transient units at the same time with a single bus call. The
"systemd-run" tool has been updated to make use of this for
running commands on a specified time, in at(1)-style.
* tmpfiles gained support for "t" lines, for assigning
extended attributes to files. Among other uses this may be
used to assign SMACK labels to files.
Contributions from: Alin Rauta, Alison Chaiken, Andrej
Manduch, Bastien Nocera, Chris Atkinson, Chris Leech, Chris
Mayo, Colin Guthrie, Colin Walters, Cristian Rodríguez,
Daniele Medri, Daniel Mack, Dan Williams, Dan Winship, Dave
Reisner, David Herrmann, Didier Roche, Felipe Sateler, Gavin
Li, Hans de Goede, Harald Hoyer, Iago López Galeiras, Ivan
Shapovalov, Jakub Filak, Jan Janssen, Jan Synacek, Joe
Lawrence, Josh Triplett, Kay Sievers, Lennart Poettering,
Lukas Nykryn, Łukasz Stelmach, Maciej Wereski, Mantas
Mikulėnas, Marcel Holtmann, Martin Pitt, Maurizio Lombardi,
Michael Biebl, Michael Chapman, Michael Marineau, Michal
Schmidt, Michal Sekletar, Olivier Brunel, Patrik Flykt, Peter
Hutterer, Przemyslaw Kedzierski, Rami Rosen, Ray Strode,
Richard Schütz, Richard W.M. Jones, Ronny Chevalier, Ross
Lagerwall, Sean Young, Stanisław Pitucha, Susant Sahani,
Thomas Haller, Thomas Hindoe Paaboel Andersen, Tom Gundersen,
Torstein Husebø, Umut Tezduyar Lindskog, Vicente Olivert
Riera, WaLyong Cho, Wesley Dawson, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2014-12-10
CHANGES WITH 217:
* journalctl gained the new options -t/--identifier= to match
on the syslog identifier (aka "tag"), as well as --utc to
show log timestamps in the UTC timezone. journalctl now also
accepts -n/--lines=all to disable line capping in a pager.
* journalctl gained a new switch, --flush, that synchronously
flushes logs from /run/log/journal to /var/log/journal if
persistent storage is enabled. systemd-journal-flush.service
now waits until the operation is complete.
* Services can notify the manager before they start a reload
(by sending RELOADING=1) or shutdown (by sending
STOPPING=1). This allows the manager to track and show the
internal state of daemons and closes a race condition when
the process is still running but has closed its D-Bus
connection.
* Services with Type=oneshot do not have to have any ExecStart
commands anymore.
* User units are now loaded also from
$XDG_RUNTIME_DIR/systemd/user/. This is similar to the
/run/systemd/user directory that was already previously
supported, but is under the control of the user.
* Job timeouts (i.e. time-outs on the time a job that is
queued stays in the run queue) can now optionally result in
immediate reboot or power-off actions (JobTimeoutAction= and
JobTimeoutRebootArgument=). This is useful on ".target"
units, to limit the maximum time a target remains
undispatched in the run queue, and to trigger an emergency
operation in such a case. This is now used by default to
turn off the system if boot-up (as defined by everything in
basic.target) hangs and does not complete for at least
15min. Also, if power-off or reboot hang for at least 30min
an immediate power-off/reboot operation is triggered. This
functionality is particularly useful to increase reliability
on embedded devices, but also on laptops which might
accidentally get powered on when carried in a backpack and
whose boot stays stuck in a hard disk encryption passphrase
question.
* systemd-logind can be configured to also handle lid switch
events even when the machine is docked or multiple displays
are attached (HandleLidSwitchDocked= option).
* A helper binary and a service have been added which can be
used to resume from hibernation in the initramfs. A
generator will parse the resume= option on the kernel
command line to trigger resume.
* A user console daemon systemd-consoled has been
added. Currently, it is a preview, and will so far open a
single terminal on each session of the user marked as
Desktop=systemd-console.
* Route metrics can be specified for DHCP routes added by
systemd-networkd.