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keep-around/964a6d9fb555cc86528eb1cc1f6d044f85584842
Lennart Poettering 9 years ago
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  2. 432
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@ -4,11 +4,12 @@ Kay Sievers <kay@vrfy.org> <kay.sievers@suse.de>
Kay Sievers <kay@vrfy.org> <kay@pim.off.vrfy.org>
Kay Sievers <kay@vrfy.org> <kay@pim>
Kay Sievers <kay@vrfy.org> <kay@yik.fritz.box>
Greg KH <greg@kroah.com>
Greg KH <greg@kroah.com> <greg@kroah.com>
Greg KH <greg@kroah.com> <greg@press.(none)>
Greg KH <greg@kroah.com> <gregkh@suse.de>
Greg KH <greg@kroah.com> <greg@bucket.kroah.org>
Greg Kroah-Hartman <greg@kroah.com>
Greg Kroah-Hartman <greg@kroah.com> <greg@kroah.com>
Greg Kroah-Hartman <greg@kroah.com> <greg@press.(none)>
Greg Kroah-Hartman <greg@kroah.com> <gregkh@suse.de>
Greg Kroah-Hartman <greg@kroah.com> <greg@bucket.kroah.org>
Greg Kroah-Hartman <greg@kroah.com> <gregkh@linuxfoundation.org>
Harald Hoyer <harald@redhat.com>
David Zeuthen <david@fubar.dk>
David Zeuthen <david@fubar.dk> <davidz@redhat.com>

432
NEWS

@ -1,5 +1,437 @@
systemd System and Service Manager
CHANGES WITH 209:
* A new component "systemd-networkd" has been added that can
be used to configure local network interfaces statically or
via DHCP. It is capable up bridges, VLANs and bonding. This
currently provides no hookups for interactive network
configuration. Use this for your initrd, container, embedded
or server setup, if you need a simple, yet powerful network
configuration solution. This configuration subsystem is
quite nifty as it allows wildcard hotplug matching in
interfaces. For example, with a single configuration snippet
you can configure that all ethernet interfaces showing up
are automatically added to a bridge, or similar. It
optionally supports link-sensing and more.
* A new tool "systemd-socket-proxyd" has been added which can
acts as a bidirectional proxy for TCP sockets. This is
useful for adding socket activation support to services that
do not actually support socket activation, including virtual
machines and suchlike.
* Add a new tool to save/restore rfkill state on
shutdown/boot.
* Save/restore state of kbd backlights in addition to display
backlights on shutdown/boot.
* udev learned a new SECLABEL{} construct to label device
nodes with a specific security label when they appear. For
now only SECLABEL{selinux} is supported, but the syntax is
prepared for additional security frameworks.
* udev gained a new scheme to configure link-level attributes
from files in /etc/systemd/network/*.link. These files can
match against MAC address, device path, driver name and type
and will apply attributes like the naming policy, link speed
MTU, duplex settings, WakeOnLan settings, MAC address, MAC
address assignment policy (randomized, ...).
* When the User= switch is used in a unit file, also
initialize $SHELL= based on user database.
* systemd no longer depends on libdbus. All communication is
now done with sd-bus, systemd's low-level bus library
implementation.
* kdbus support has been added to PID 1 itself. When kdbus is
enabled this causes PID 1 to set up the system bus, and
enable support for a new ".busname" unit type that
encapsulates bus name activation on kdbus. It works a little
bit like ".socket" units, except for bus names. A new
generator has been added that converts classic dbus1 service
activation files automatically into native systemd .busname
and .service units.
* sd-bus: add a light-weight vtable implementation that allows
defining objects on the bus with a simple static const
vtable array of its methods, signals and properties.
* systemd will not generate nor install static dbus
introspection data anymore to /usr/share/dbus-1/interfaces,
as the precise format of these files are unclear, and
nothing makes use of it.
* A proxy daemon is now provided to proxy clients connecting
via classic D-Bus AF_UNIX sockets to kdbus, to provide full
compatibility with classic D-Bus.
* A bus driver implementation has been added that supports the
classic D-Bus bus driver calls on kdbus, also for
compatibility purposes.
* A new API "sd-event.h" has been added that implements a
minimal event loop API built around epoll. It provides a
couple of features that direct epoll usage is lacking:
priorization of events, scales to large numbers of timer
events, per-event timer slack (accuracy), system-wide
coalescing of timer events, exit handlers, watchdog
supervision support using systemd's sd_notify() API, child
process handling.
* A new API "sd-rntl.h" has been added that provides an API
around the route netlink interface of the kernel, similar in
style to "sd-bus.h".
* A new API "sd-dhcp.h" has been added that provides a small
DHCPv4 client side implementation. This is used by
"systemd-networkd".
* There's a new kernel command line option
"systemd.restore_state". When set none of the systemd tools
will restore saved runtime state to hardware devices. More
specifically, the rfkill and backlight states are not
restored.
* The FsckPassNo= compatibility option in mount/service units
has been removed. The fstab generator will now add the
necessary dependencies automatically, and does not require
PID1's support for that anymore.
* journalctl gained a new switch --list-boots, that lists
recent boots with their times and boot IDs.
* The various tools like systemctl, loginctl, timedatectl,
busctl, systemd-run, ... have gained a new switch "-M" to
connect to a specific, local OS container (as direct
connection, without requiring SSH). This works on any
container that is registered with machined, such as those
created by libvirt-lxc or nspawn.
* systemd-run and systemd-analyze also gained support for "-H"
to connect to remote hosts via SSH. This is particular
useful for systemd-run since it enables queuing of jobs onto
remote systems.
* machinectl gained a new command "login" to open a getty
login in any local container. This works with any container
that is registered with machined (such as those created by
libvirt-lxc or nspawn), and which run systemd inside.
* machinectl gained a new "reboot" command that may be used to
trigger a reboot on a specific container that is registered
with machined. This works on any container that runs an init
system of some kind.
* systemctl gained a new "list-timers" command to print a nice
listing of installed timer units with the times they elapse
next.
* Alternative reboot() parameters may now be specified on the
"systemctl reboot" command line and are passed to the
reboot() system call.
* systemctl gained a new --job-mode= switch to configure the
mode to queue a job with. This is a more generic version of
--fail, --irreversible, --ignore-dependencies which are
still available but not advertised anymore.
* systemd-activate gained a new --setenv= parameter to specify
additional environment variables to pass to the executed
program.
* /etc/systemd/system.conf gained new settings to configure
various default timeouts of units, as well as the default
start limit interval and burst. These may still be overriden
within each Unit.
* PID1 will now export profile data of security policy
uploading (such as SELinux policy upload to the kernel)
over.
* journald: when forwarding logs to the console include
timestamps.
* OnCalendar= in timer units now understands the special
strings "yearly" and "annually". (Both are equivalent)
* The accuracy of timer units is now configurable with the new
AccuracySec= setting. It defaults to 1min.
* A new dependency type JoinsNamespaceOf= has been added that
allows running two services within the same /tmp and network
namespace, if PrivateNetwork= or PrivateTmp= are used.
* A new command "cat" has been added to systemctl. It outputs
the original unit file of a unit, and concatenates the
contents of addition "drop-in" unit file snippets to it, so
that the full configuration is shown.
* systemctl now supports globbing on the various "list-xyz"
commands, like "list-units" or "list-sockets", as well as on
thsoe commands which take multiple unit names.
* All systemd daemons now make use of the watchdog logic so
that systemd automatically notices when they hang.
* If the $container_ttys environment variable is set
getty-generator will automatically spawn a getty for each
listed tty. This is useful for container managers to request
login gettys to be spawned on as many ttys as needed.
* %h, %s, %U specifier support is not available anymore when
used in unit files for PID 1. This is because NSS calls are
not safe from PID 1. They stay available for --user
instances of systemd, and as special case for the root user.
* When the kernel command line argument "kdbus" is specified
systemd will automatically load the kdbus kernel
module. This is useful for testing kdbus without having to
turn it on unconditionally.
* loginctl gained a new "--no-legend" switch to turn off output
of the legend text.
* The "sd-login.h" API gained three new calls:
sd_session_is_remote(), sd_session_get_remote_user(),
sd_session_get_remote_host() to query information about
remote sessions.
* The udev device database now also carries vendor/product
information about SDIO devices.
* The "sd-daemon.h" API gained a new sd_watchdog_enabled() to
determine whether watchdog notifications are requested by
the system manager.
* "systemd-delta" will now also display changes made via .d/
drop-ins for unit files.
* Socket-activated per-connection services will now include a
short description of the connection parameters in the
description.
* tmpfiles gained a new "--boot" option. When this is not used
only lines where the command character is not suffixed with
"!" are executed. When this option is specified those
options are executed too. This is useful to ensure that
specific lines are not executed by accident during runtime,
and only at boot (for example, a line that creates
/run/nologin).
* A new API "sd-resolv.h" has been added, that provides a
simple asynchronous around glibc NSS host name resolution
calls, such as getaddrinfo(). In contrast to glibc's
getaddrinfo_a() it does not use signals. In contrast to most
other asynchronous name resolution libraries this one does
not not reimplement DNS, but reused NSS, so that alternative
host name resolution systems continue to work, such as mDNS,
LDAP, ... This API is based on libasyncns, but has been
cleaned up for inclusion in systemd.
* journalctl's --unit= switch gained support for globbing.
* The APIs "sd-journal.h", "sd-login.h", "sd-id128.h" are no
longer found in individual libraries libsystemd-journal.so,
libsystemd-login.so, libsystemd-id128.so. Instead we have
merged them into a single library libsystemd.so which
provides all symbols. The reason for this are cyclic
dependencies, as these libraries tend to use each other's
symbols. So far we maneged to work-around that by linking a
copy of a good part of our code into each of these libraries
again and again, which however makes certain things hard to
do, like sharing static variables. Also, it substantially
increases footprint. With this change there's only one
library for the basic APIs systemd provides. Also,
"sd-bus.h", "sd-memfd.h", "sd-event.h", "sd-rtnl.h",
"sd-resolve.h", "sd-utf8.h" are found in this library as
well, however are subject to the --enable-kdbus switch (see
below). Note that "sd-dhcp.h" and "sd-daemon.h" are not part
of this libraries (the former because it only consumes,
never provides services of/to other APIs, and the latter
because it is completely standalone). To make the transition
from the separate libraries to the unified one easy we
provide the --enable-compat-libs compile time switch which
will generate stub libraries that are compatible with the
old ones but redirect all calls to the new one.
* All the kdbus logic and the new APIs "sd-bus.h",
"sd-memfd.h", "sd-event.h", "sd-rtnl.h", "sd-resolve.h",
"sd-utf8.h" is compile-time optional, via the
"--enable-kdbus" switch and is not compiled in by
default. To make use of you have to explicitly enable the
switch. Note however, that neither the kernel nor the
userspace API for all of this is considered stable yet. We
want to maintain the freedom to still change the APIs for
now. By specifying this build-time switch you acknowledge
that you are aware of the instability of the current
APIs. Also, note that while kdbus is pretty much complete,
it lacks one thing: proper policy support. This means you
can build a fully working system with all features, however
it will be highly insecure. Policy will be added in one of
the next releases, at the same time as we will declare the
APIs stable.
* systemctl gained a new "import-environment" command which
uploads the callers environment (or parts thereof) into the
service manager so that it is inherited by services started
by the manager. This is useful to upload variables like
$DISPLAY into the user service manager.
* A new PrivateDevices= switch has been added to service units
which allows running a service with a namespaced /dev
directory that does not contain any device nodes for
physical devices. More specifically it only includes devices
such as /dev/null, /dev/urandom and /dev/zero which are API
entry points.
* logind has been extended to support behaviour like VT
switching on seats that do not support a VT. This makes
multi-session available on seats that are not the first seat
(seat0), and on systems where kernel support for VTs has
been disabled at compile time.
* If a process holds a delay lock for system sleep or shutdown
and fails to release it in time we will now log about its
identity. This makes it easier to identify processes that
cause slow suspends or power-offs.
* When parsing /etc/crypttab, support a new key-slot= option
as supported by Debian, which allows indicating which LUKS
slot to use on disk.
* The boot-time has been improved to show information about
timeouts that are expiring as they are expiring.
* The sd_journald_sendv() API call has been updated to be
async-signal-safe so that it may be invoked from signal
handlers for logging purposes.
* Boot-time status output is now enabled automatically after a
short timeout if boot does not progress, in order to give
the user an indication what he is waiting for.
* The KillMode= switch in service units gained a new possible
value "mixed". If set and the unit is shutdown then the
initial SIGTERM signal is sent only to the main daemon
process, while the following SIGKILL signal is then sent to
all remaining processes of the service.
* When a scope unit is registered a new property "Controller"
may be set. If set to a valid bus name systemd will send a
RequestStop() signal to this name when it would like to shut
down the scope. This may be used to hook manager logic into
the shutdown logic of scope units. Also, scope units may now
be put in a special "abandoned" state in which case the
manager process which created them takes no further
responsibilities for it.
* When reading unit files systemd will now implicitly verify
the access mode of these files, and warn about certain
suspicious combinations. This has been added to make it
easier to track down packaging bugs where unit files are
marked executable or world-writable.
* systemd-nspawn gained a new "--setenv=" switch to set
container-wide environment variables.
* systemd-nspawn has been updated to create a new kdbus domain
for each container that is invoked, thus allowing each
container to have its own set of system and user busses,
independently of the host.
* systemd-nspawn gained a new --drop-capability= switch to run
the container with less capabilities than the default. Both
--drop-capability= and --capability= now take the specia
string "all" for dropping or keeping all capabilities.
* systemd-nspawn gained new switches for executing containers
with specific SELinux labels set.
* systemd-nspawn gained a new --quiet switch to not generate
any additional output but the container's own console
output.
* systemd-nspawn gained a new --share-system switch to run a
container without PID namespacing enabled.
* systemd-nspawn gained a new --register= switch to control
whether the container is registered with machined or
not. This is useful for containers that do not register full
OS images, but only specific apps.
* systemd-nspawn gained a new --keep-unit which may be used
when invoked as only program from a service unit, and
results in registration of the unit service itself in
machined, instead of a newly opened scope unit.
* systemd-nspawn gained a new --network-interface= switch for
moving arbitrary interfaces to the container. The new
--network-veth switch creates a virtual ethernet connection
between host and container. Thew new --network-bridge=
switch then additionally allows assigning the host side of
this virtual ethernet connection to a bridge device.
* logind will now also track a "Desktop" identifier for each
session which encodes the desktop environment of it. This is
useful for desktop environments that want to identify
multiple running sessions of itself easily.
* A new SELinuxContext= setting for service units has been
added that allows setting a specific SELinux execution
context for a service.
* Most systemd client tools will now honour $SYSTEMD_LESS for
settings of the "less" pager. By default, these tools will
override $LESS to allow certain operations like
jump-to-the-end work. With $SYSTEMD_LESS it is possible to
influence this logic.
* systemd's "seccomp" hook-up has been changed to make use of
the libseccomp library instead of using its own
implementation. This has benefits for portability among
other things.
* For usage together with SystemCallFilter= a new
SystemCallErrorNumber= setting has been introduce that
allows configuration if a system error number to return on
filtered syscalls, instead of immediately killing the
process. Also, SystemCallArchitectures= has been added to
limit access to system calls of a particular architecture
(in order to turn off support for unused secondary
architectures). There's also a global
SystemcallArchitecture= setting in system.conf now to turn
off support for non-native system calls system-wide.
Contributions from: Adam Williamson, Alex Jia, Anatol Pomozov,
Ansgar Burchardt, AppleBloom, Auke Kok, Bastien Nocera,
Chengwei Yang, Christian Seiler, Colin Guthrie, Colin Walters,
Cristian Rodríguez, Daniel Buch, Daniele Medri, Daniel J
Walsh, Daniel Mack, Dan McGee, Dave Reisner, David Coppa,
David Herrmann, David Strauss, Djalal Harouni, Dmitry Pisklov,
Elia Pinto, Florian Weimer, George McCollister, Goffredo
Baroncelli, Greg Kroah-Hartman, Hendrik Brueckner, Igor
Zhbanov, Jan Engelhardt, Jan Janssen, Jason A. Donenfeld,
Jason St. John, Jasper St. Pierre, Jóhann B. Guðmundsson, Jose
Ignacio Naranjo, Karel Zak, Kay Sievers, Kristian Høgsberg,
Lennart Poettering, Lubomir Rintel, Lukas Nykryn, Lukasz
Skalski, Łukasz Stelmach, Luke Shumaker, Mantas Mikulėnas,
Marc-Antoine Perennou, Marcel Holtmann, Marcos Felipe Rasia de
Mello, Marko Myllynen, Martin Pitt, Matthew Monaco, Michael
Marineau, Michael Scherer, Michał Górny, Michal Sekletar,
Michele Curti, Oleksii Shevchuk, Olivier Brunel, Patrik Flykt,
Pavel Holica, Raudi, Richard Marko, Ronny Chevalier, Sébastien
Luttringer, Sergey Ptashnick, Shawn Landden, Simon Peeters,
Stefan Beller, Susant Sahani, Sylvain Plantefeve, Sylvia Else,
Tero Roponen, Thomas Bächler, Thomas Hindoe Paaboel Andersen,
Tom Gundersen, Umut Tezduyar Lindskog, Unai Uribarri, Václav
Pavlín, Vincent Batts, WaLyong Cho, William Giokas, Yang
Zhiyong, Yin Kangkai, Yuxuan Shui, Zbigniew Jędrzejewski-Szmek
-- Berlin, 2014-02-xx
CHANGES WITH 208:
* logind has gained support for facilitating privileged input

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