tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

kdbus: remove attach_flags_mask module parameter setting

bus: sync with kdbus (ABI break)

core: rearrange code so that libsystemd/sd-bus/ does not include header files from core Stuff in src/shared or src/libsystemd should *never* include code from src/core or any of the tools, so don't do that here either. It's not OK!

sd-bus: add new call sd_bus_get_scope() for querying whether one is connected to a system or a user bus

sd-bus: rework credential query logic Also, make the call to free kdbus slices generic and use it everywhere

kdbus: set kernel attach mask before creating the first bus

sd-bus: add suppot for renegotiating message credential attach flags

sd-bus: sync with kdbus upstream (ABI break) kdbus has seen a larger update than expected lately, most notably with kdbusfs, a file system to expose the kdbus control files: * Each time a file system of this type is mounted, a new kdbus domain is created. * The layout inside each mount point is the same as before, except that domains are not hierarchically nested anymore. * Domains are therefore also unnamed now. * Unmounting a kdbusfs will automatically also detroy the associated domain. * Hence, the action of creating a kdbus domain is now as privileged as mounting a filesystem. * This way, we can get around creating dev nodes for everything, which is last but not least something that is not limited by 20-bit minor numbers. The kdbus specific bits in nspawn have all been dropped now, as nspawn can rely on the container OS to set up its own kdbus domain, simply by mounting a new instance. A new set of mounts has been added to mount things *after* the kernel modules have been loaded. For now, only kdbus is in this set, which is invoked with mount_setup_late().

bus: add code to create custom endpoints and set their policy Custom endpoints are alternative connection points to a bus, allowing specific policy to be uploaded. Add two functions to bus-kernel. One to create such endpoints, and another one for setting a policy for them.

bus: factor out bus policy items In order to re-use the policy definitions, factor them out into their own files.

sd-bus: remove unused call bus_kernel_create_monitor() Noticed by Djalal Harouni

Print kdbus path when opening fails This makes it easier to debug what is going on.

kdbus: when uploading bus name policy, resolve users/groups out-of-process It's not safe invoking NSS from PID 1, hence fork off worker processes that upload the policy into the kernel for busnames.

busname: introduce Activating directive Add a new config 'Activating' directive which denotes whether a busname is actually registered on the bus. It defaults to 'yes'. If set to 'no', the .busname unit only uploads policy, which will remain active as long as the unit is running.

core: add new AcceptFD= setting to .busname units AcceptFD= defaults to true, thus making sure that by default fd passing is enabled for all activatable names. Since for normal bus connections fd passing is enabled too by default this makes sure fd passing works correctly regardless whether a service is already activated or not. Making this configurable on both busname units and in bus connections is messy, but unavoidable since busnames are established and may queue messages before the connection feature negotiation is done by the service eventually activated. Conversely, feature negotiation on bus connections takes place before the connection acquires its names. Of course, this means developers really should make sure to keep the settings in .busname units in sync with what they later intend to negotiate.

sd-bus: check for potential integer overflow in KDBUS_ITEM_FOREACH() For large values of item->size, the 'part' pointer can wrap around, which results in an illegal pointer, but currently passes the for-loop condition.

sd-bus: add support for policy upload on activator connections Activator connections may upload policy when registering to the bus. This patch contains code to translate between BusNamePolicy objects and the kdbus specific items.

bus: update kdbus.h (ABI break)

bus: when we cannot bus activate a service because we go down, drop one message from the queue

bus: bump memfd vs. copy limit to 512k to reflect recent benchmarks

bus: add sd_bus_process_priority() to support prioq mode of kdbus

bus: implement synchronous message calls via kernel ioctl

libsystemd: split up into subdirs We still only produce on .so, but let's keep the sources separate to make things a bit less messy.