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When modem is brought online, then sim removed and re-inserted. We
crash when going online again due to the spn related data-structures not
being initialized properly
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g_strdup returns NULL if argument passed is NULL and there is no need
to double check that.
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Trivial formatting fix.
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Since these are simple #define strings, we are defining it here
instead of upgrading to D-Bus 1.5 or later.
Log:
CC gdbus/object.o
gdbus/object.c: In function ‘properties_set’:
gdbus/object.c:876:7: error: ‘DBUS_ERROR_UNKNOWN_PROPERTY’ undeclared
(first use in this function)
gdbus/object.c:876:7: note: each undeclared identifier is reported
only once for each function it appears in
gdbus/object.c:881:6: error: ‘DBUS_ERROR_PROPERTY_READ_ONLY’
undeclared (first use in this function)
make[1]: *** [gdbus/object.o] Error 1
make: *** [all] Error 2
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The reply to a DBus.Properties.Set() method call should go through the
same D-Bus connection. Thus remove the DBusConnection parameter from the
following functions:
- g_dbus_pending_property_success()
- g_dbus_pending_property_error_valist()
- g_dbus_pending_property_error()
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If an interface is removed from the root path during the same mainloop
iteration that it was added we need to check for data->added before
doing the check for data->parent == NULL in the remove_interface()
function. Otherwise the added interface doesn't get removed from the
data->added list and will result in accessing freed memory:
==337== Invalid read of size 8
==337== at 0x4F65AFA: dbus_message_iter_append_basic (in /usr/lib64/libdbus-1.so.3.7.1)
==337== by 0x1247B5: append_interface (object.c:556)
==337== by 0x4C8DC5C: g_slist_foreach (gslist.c:840)
==337== by 0x1261F7: process_changes (object.c:594)
==337== by 0x126372: generic_unregister (object.c:997)
==337== by 0x4F69669: ??? (in /usr/lib64/libdbus-1.so.3.7.1)
==337== by 0x4F5CE51: dbus_connection_unregister_object_path (in /usr/lib64/libdbus-1.so.3.7.1)
==337== by 0x125E81: object_path_unref (object.c:1236)
==337== by 0x126136: g_dbus_unregister_interface (object.c:1361)
==337== by 0x14CDF0: service_exit (service.c:581)
==337== by 0x177556: plugin_cleanup (plugin.c:242)
==337== by 0x12221F: main (main.c:559)
==337== Address 0x5bc1550 is 0 bytes inside a block of size 56 free'd
==337== at 0x4A079AE: free (vg_replace_malloc.c:427)
==337== by 0x4C7850E: g_free (gmem.c:252)
==337== by 0x125DB0: remove_interface (object.c:671)
==337== by 0x125E3B: object_path_unref (object.c:1230)
==337== by 0x126136: g_dbus_unregister_interface (object.c:1361)
==337== by 0x14CDF0: service_exit (service.c:581)
==337== by 0x177556: plugin_cleanup (plugin.c:242)
==337== by 0x12221F: main (main.c:559)
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This function can be used to construct custom D-Bus messages containing
the properties for a specific interface on a given path.
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If there's a pending property but its exists() callback returns false
the property should be considered invalidated and included in the
relevant list of the PropertiesChanged signal.
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Minor fixes to make setter actually work:
- Add propdata in pending_property_set
- Break loop when we are removing propdata from list and we
found it
- in_args and out_args were swapped
- interface and method name arguments were swapped
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If an interface is added and removed on the same mailoop iteration,
ObjectManager would try to send InterfacesAdded signal while running the
idler because the interface was added to data->added list.
This is easily reproduced by forcing an error path in a plugin
registration, like on sap_server_register(), resulting in the following
error:
==11795== Invalid read of size 4
==11795== at 0x496F592: dbus_message_iter_append_basic (dbus-message.c:2598)
==11795== by 0x117B39: append_interface (object.c:554)
==11795== by 0x48955E7: g_slist_foreach (gslist.c:840)
==11795== by 0x11923B: process_changes (object.c:592)
==11795== by 0x11956D: generic_unregister (object.c:980)
==11795== by 0x4973BAC: _dbus_object_tree_unregister_and_unlock (dbus-object-tree.c:516)
==11795== by 0x4965240: dbus_connection_unregister_object_path (dbus-connection.c:5776)
==11795== by 0x1178A5: object_path_unref (object.c:1219)
==11795== by 0x118517: g_dbus_unregister_interface (object.c:1344)
==11795== by 0x19AF5B: sap_exit (sap.c:385)
==11795== by 0x13E9E2: sap_server_register (server.c:1428)
==11795== by 0x13C092: sap_server_probe (manager.c:44)
With this patch we don't send the InterfacesAdded signal, removing it
from data->added while unregistering.
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This reuse append_properties for GetAll and GetManagedObjects
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This appends the properties and its values when using ObjectManager.
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ObjectManager should be exported only in the root path and list all
the children paths.
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InterfacesAdded and InterfacesRemoved can group all the interfaces
changes together in one message.
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This implements initial support for ObjectManager, it automatically adds
objects to its parents so no action is needed by daemons to get their
objects managed by this interface.
ObjectManager is part of D-Bus spec since revision 0.17:
http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager
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Contrary to Get() and GetAll(), Set() is asynchronous so we pass an id
to the setter so later it can declare the Set() as successful or
otherwise.
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This interface is responsible for handling properties of all objects in
a given path. Right now it only registers itself, doing nothing useful.
A conversion to this new layout will be done by subsequent patches.
org.freedesktop.org.DBus.Properties spec can be found at
http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties
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Besides being more readable this way it avoids going over 80 chars.
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Move the typedefs up so they can be used by functions and callbacks.
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For GET STATUS and READ BINARY variations, support appending of the
optional path in the CRSM command
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Reading of icons requires us to specify the path
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