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Daniel Mack d8ccf5fdc9 core: fix bus name synchronization after daemon-reload 
During daemon-reload, PID1 temporarly loses its DBus connection, so there's
a small window in which all signals sent by dbus-daemon are lost.

This is a problem, since we rely on the NameOwnerChanged signals in order to
consider a service with Type=dbus fully started or terminated, respectively.

In order to fix this, a rewrite of bus_list_names() is necessary. We used
to walk the current list of names on the bus, and blindly triggered the
bus_name_owner_change() callback on each service, providing the actual name
as current owner. This implementation has a number of problems:

* We cannot detect if the the name was moved from one owner to the other
  while we were reloading

* We don't notify services which missed the name loss signal

* Providing the actual name as current owner is a hack, as the comment also
  admits.

To fix this, this patch carries the following changes:

* Track the name of the current bus name owner, and (de-)serialize it
  during reload. This way, we can detect changes.

* In bus_list_names(), walk the list of bus names we're interested in
  first, and then see if the name is active on the bus. If it is,
  check it it's still the same as it used to be, and synthesize
  NameOwnerChanged signals for the name add and/or loss.

This should fully synchronize the current name list with the internal
state of all services.
2015-12-21 11:23:08 +01:00
..
.gitignore Move daemon-reload from package %post scripts to file triggers 2015-11-15 18:38:37 -05:00
audit-fd.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
audit-fd.h
automount.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
automount.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
bus-endpoint.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
bus-endpoint.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
bus-policy.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
bus-policy.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
busname.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
busname.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
cgroup.c core: don't generate warnings when write access to the cgroup fs fails in --user due to EACCES 2015-11-17 00:52:10 +01:00
cgroup.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-automount.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-automount.h remove unused includes 2015-02-23 23:53:42 +01:00
dbus-busname.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-busname.h remove unused includes 2015-02-23 23:53:42 +01:00
dbus-cgroup.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
dbus-cgroup.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
dbus-device.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-device.h remove unused includes 2015-02-23 23:53:42 +01:00
dbus-execute.c core: expose soft limits on the bus 2015-11-30 21:28:16 +00:00
dbus-execute.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
dbus-job.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
dbus-job.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
dbus-kill.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-kill.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-manager.c Merge pull request #2157 from keszybz/manager-status 2015-12-15 15:57:19 +01:00
dbus-manager.h core: emit changes for NFailedUnits property 2015-02-26 09:38:50 -05:00
dbus-mount.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-mount.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
dbus-path.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-path.h remove unused includes 2015-02-23 23:53:42 +01:00
dbus-scope.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
dbus-scope.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-service.c core: expose number of file descriptors in fd store on the bus 2015-11-02 23:44:05 +01:00
dbus-service.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-slice.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-slice.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-socket.c Socket: socket protocol add to dbus properties 2015-11-18 09:34:19 +05:30
dbus-socket.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-swap.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-swap.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-target.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
dbus-target.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
dbus-timer.c core: rename Random* to RandomizedDelay* 2015-11-26 16:32:41 -05:00
dbus-timer.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
dbus-unit.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
dbus-unit.h Merge pull request #1828 from fbuihuu/set-property-on-inactive-unit 2015-11-27 14:00:57 +01:00
dbus.c core: fix bus name synchronization after daemon-reload 2015-12-21 11:23:08 +01:00
dbus.h core: pass details to polkit for some unit actions 2015-09-06 00:07:17 +10:00
device.c tree-wide: group include of libudev.h with sd-* 2015-11-17 07:06:08 +01:00
device.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
execute.c core: dump soft limits too 2015-11-30 21:29:39 +00:00
execute.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
failure-action.c core: unify code that warns about jobs we fail to enqueue 2015-11-12 20:14:06 +01:00
failure-action.h core: introduce "poweroff" as new failure action types 2014-08-22 18:10:31 +02:00
hostname-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
hostname-setup.h
ima-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
ima-setup.h
job.c core: Minor cleaning up of unit/log status and log logic 2015-11-17 20:41:52 +01:00
job.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
kill.c util-lib: move string table stuff into its own string-table.[ch] 2015-10-27 13:25:56 +01:00
kill.h core: extend KillUnit() to return error when no unit was killed 2015-09-21 10:05:49 +02:00
killall.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
killall.h
kmod-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
kmod-setup.h
load-dropin.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
load-dropin.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
load-fragment-gperf.gperf.m4 core: rename Random* to RandomizedDelay* 2015-11-26 16:32:41 -05:00
load-fragment.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
load-fragment.h socket: Add support for socket protcol 2015-11-18 09:34:18 +05:30
locale-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
locale-setup.h
loopback-setup.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
loopback-setup.h
machine-id-setup.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
machine-id-setup.h machine-id-setup: add a machine_id_commit call to commit on disk a transient machine-id 2014-12-03 03:41:19 +01:00
macros.systemd.in rpm: fix %systemd_user_post() macro. 2015-11-22 20:38:05 +01:00
main.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
Makefile
manager.c manager: log log level changes uniformly 2015-12-13 14:53:52 -05:00
manager.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
mount-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
mount-setup.h mount-setup: remove mount_setup_late() 2014-11-14 15:18:56 +01:00
mount.c core: Do not bind a mount unit to a device, if it was from mountinfo 2015-11-24 14:08:50 +01:00
mount.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
namespace.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
namespace.h core: Private*/Protect* options with RootDirectory 2015-05-18 18:47:45 +02:00
org.freedesktop.systemd1.conf systemctl: add add-wants and add-requires verbs 2014-10-08 12:44:00 +02:00
org.freedesktop.systemd1.policy.in.in core: rework policykit hookup 2015-02-18 18:56:27 +01:00
org.freedesktop.systemd1.service
path.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
path.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
scope.c core: simplify scope unit GC checking code a bit 2015-11-13 19:50:52 +01:00
scope.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
selinux-access.c core: simplify selinux AVC initialization 2015-11-30 20:26:03 +01:00
selinux-access.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
selinux-setup.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
selinux-setup.h mac: add mac_ prefix to distinguish origin security apis 2014-10-28 14:31:48 +01:00
service.c core: fix bus name synchronization after daemon-reload 2015-12-21 11:23:08 +01:00
service.h core: fix bus name synchronization after daemon-reload 2015-12-21 11:23:08 +01:00
show-status.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
show-status.h util-lib: move status printing stuff into src/core/ 2015-10-27 13:25:56 +01:00
shutdown.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
slice.c tree-wide: sort includes 2015-11-16 22:09:36 +01:00
slice.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
smack-setup.c util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
smack-setup.h mac: add mac_ prefix to distinguish origin security apis 2014-10-28 14:31:48 +01:00
socket.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
socket.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
swap.c core: Do not bind a mount unit to a device, if it was from mountinfo 2015-11-24 14:08:50 +01:00
swap.h util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] 2015-10-24 23:05:02 +02:00
system.conf core: enable TasksMax= for all services by default, and set it to 512 2015-11-16 11:57:48 +01:00
systemd.pc.in build-sys: move systemd.pc from pkgconfiglibdir back into pkgconfigdatadir 2015-04-21 20:35:17 +02:00
target.c core: remove support for RequiresOverridable= and RequisiteOverridable= 2015-11-12 19:27:24 +01:00
target.h Move all unit states to basic/ and extend systemctl --state=help 2015-09-28 15:09:34 -04:00
timer.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
timer.h core: add new RandomSec= setting for time units 2015-11-18 17:07:11 +01:00
transaction.c core: do not warn about Wants depencencies on masked units 2015-11-30 21:00:04 -05:00
transaction.h tree-wide: sort includes in *.h 2015-11-18 23:09:02 +01:00
triggers.systemd.in Convert file trigger scripts to lua 2015-11-23 11:32:20 -05:00
umount.c tree-wide: group include of libudev.h with sd-* 2015-11-17 07:06:08 +01:00
umount.h
unit-printf.c core: simplify handling of %u, %U, %s and %h unit file specifiers 2015-11-12 17:57:04 +01:00
unit-printf.h
unit.c tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy 2015-11-27 19:19:36 +01:00
unit.h core: Do not bind a mount unit to a device, if it was from mountinfo 2015-11-24 14:08:50 +01:00
user.conf core: Support system.conf.d and user.conf.d directories in the usual search paths 2014-11-29 13:55:31 -05:00