sbus: check connection for NULL before unregister it There seem to be code paths where the data is a added to the hash before the connection is properly initialized, to avoid core dump during shut down we only call dbus_conection_unregister_object_path() if there is a connection. Resolves: https://pagure.io/SSSD/sssd/issue/3367 Reviewed-by: Pavel Březina <pbrezina@redhat.com>

SBUS: use sss_ptr_hash for nodes table This patch reuses sss_ptr_hash module introduced in NSS patches in sbus code. Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>

SBUS: use sss_ptr_hash for opath table This patch reuses sss_ptr_hash module introduced in NSS patches in sbus code. Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>

SBUS: Add a time_t pointer to the sbus_connection The idea of this commit is to provide a way to update the time of the last request coming from/going to the responders through sbus. For now it's not used anywhere as all the functions that will pass their time_t to the sbus_connection are currently passing NULL. It will be used by follow-up patches. Related: https://fedorahosted.org/sssd/ticket/3245 Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com> Reviewed-by: Pavel Březina <pbrezina@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

SBUS: Add sbus_conn_register_iface_map Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

SBUS: Add support for <node /> in introspection Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: add sbus_opath_decompose[_exact] This function decomposes object path into array of strings. The "_exact" version expects a certain number of parts otherwise an error is thrown. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: sbus_opath_hash_add_iface free tmp talloc ctx Reviewed-by: Pavel Březina <pbrezina@redhat.com>

sbus: add sbus_opath_get_object_name() This function assumes that the last component of the object path is an object name. It will return the part unescaped. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: move common opath functions from ifp to sbus code These functions are quite general thus they may be part of sbus interface. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: unify naming of handler data variable We used three different names to express handler data: - pvt - instace_data - handler_data Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: support org.freedesktop.DBus.Properties Bring back org.freedesktop.DBus.Properties with support of multiple interfaces on single object path. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: support org.freedesktop.DBus.Introspectable This commit brings back support of Introspectable interface and enables support of multiple interfaces there. It also refactors the old code so the generator and introspect xml format especially is more readable. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: add sbus_opath_hash_lookup_supported() This function acquires list of all interfaces that are supported on given object path. It is a preparation for Introspect interface. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: support multiple interfaces on single path This patch removes the old message handler which is replaced with a new one that supports multiple interfaces registered on single object path. A hash table is used to store registered object paths and their interfaces. When an entry or the table itself is destroyed, registered object path is unregistered through delete callback. It temporarily removes support of Introspect and Properties standard D-Bus interfaces and disables unit tests of those interfaces. The support is brought back by following patches. Resolves: https://fedorahosted.org/sssd/ticket/2339 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: use 'path/*' to represent a D-Bus fallback Use 'path/*' instead of 'path*' since it better describes what we are actually doing i.e. registering a message handler for a subtree. Although D-Bus fallback will invoke a message handler for both 'path' and 'path/subtree' object paths it does not make usually sence to support the same interfaces for both parent and it children. This commit also renames related functions to better describe what are they doing. Note: the tilda in comments is used to suppress -Wcomment warning Preparation for: https://fedorahosted.org/sssd/ticket/2339 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

sbus: move iface and object path code to separate file This is done to better distinguish between connection code and interface stuff. It will help with orientation and thus simplify next changes. Preparation for: https://fedorahosted.org/sssd/ticket/2339 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>