NEWS: prepare for release of 210

System Internals / systemd - Lennart Poettering [] - 24 February 2014 11:34 EST



- systemd will now relabel /dev after loading the SMACK policy according to SMACK rules.

- A new unit file option AppArmoreProfile= has been added to set the AppArmor profile for the processes of a unit.

- A new condition check ConditionArchitecture= has been added to conditionalize units based on the system architecture, as reported by uname()'s "machine" field.

- systemd-networkd now supports matching on the system
virtualization, architecture, kernel command line, host name and machine ID.

- logind is now a lot more agressive when suspending the machine due to a closed laptop lid. Instead of acting only on the lid close action it will continously watch the lid status and act on it. This is useful for laptops where the power button is on the outside of the chassis so that it can be reached whithout opening the lid (such as the Lenovo Yoga). On those machines logind will now immediately resuspend the machine if the power button has been accidentally pressed while the laptop was suspended and in a backpack or similar.

- logind will now watch SW_DOCK switches and inhibit reaction to the lid switch if it is pressed. This means that logind will not suspend the machine if the lid is closed and the systemd is docked anymore, if the laptop supports SW_DOCK notifications via the input layer. Note that ACPI docking stations do not generate this currently. Also note that this logic is usually not fully sufficient and Desktop Environments should take a lid switch inhibitor lock when an external display is connected, as systemd will not watch this on its own.

- nspawn will now make use of the devices cgroup controller by default, and only permit creation of and access to the usual API device nodes like /dev/null or /dev/random, as well as access to (but not creation of) the pty devices.

- We will now ship a default .network file for systemd-networkd that automatically configures DHCP for network interfaces created by nspawn's --network-veth or
--network-bridge= switches.

- systemd will now understand the usual M, K, G, T suffixes according to SI conventions (i.e. to the base 1000) when referring to throughput and hardware metrics. It will stay with IEC conventions (i.e. to the base 1024) for software metrics, according to what is customary according to Wikipedia. We explicitly document which base applies for each configuration option.

- The DeviceAllow= setting in unit files now supports a syntax to whitelist an entire group of devince node majors at once, based on the /proc/devices listing. For example, with the string "char-pts" it is now possible to whitelist all current and future pseudo-TTYs at once.

- sd-event learned a new "post" event source. Event sources of this type are triggered by the dispatching of any event source of a type that is not "post". This is useful for implementing clean-up and check event sources that are triggered by other work being done in the program.

- systemd-networkd is no longer statically enabled, but uses the usual [Install] sections so that it can be enabled/disabled using systemctl. It still is enabled by default however.

- When creating a veth interface pair with systemd-nspawn the host side will now be prefixed with "vb-" if--network-bridge= is used, and with "ve-" if --network-veth is used. This way it is easy to distuingish these cases on the host, for example to apply different configuration to them with systemd-networkd.

43c7125 NEWS: prepare for release of 210 | 3 ++
NEWS | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 94 insertions(+)


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