d281b9bddb
Breakpoint 2, g_log (log_domain=log_domain@entry=0x7ffff6ad744e "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7ffff6ae0c1d "%s: assertion '%s' failed") at gmessages.c:1075
1075 {
(gdb) bt
#0 0x00007ffff6a71b20 in g_log (log_domain=log_domain@entry=0x7ffff6ad744e "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7ffff6ae0c1d "%s: assertion '%s' failed")
at gmessages.c:1075
#1 0x00007ffff6a71be9 in g_return_if_fail_warning (log_domain=log_domain@entry=0x7ffff6ad744e "GLib", pretty_function=pretty_function@entry=0x7ffff6b316a0 <__FUNCTION__.5266> "g_variant_new_string", expression=expression@entry=0x7ffff6b2f1e8 "g_utf8_validate (string, -1, NULL)") at gmessages.c:1088
#2 0x00007ffff6a9e925 in g_variant_new_string (string=0x7cf850 "260\366\377\177") at gvariant.c:1230
#3 0x00007ffff7068cfe in g_dbus_gvalue_to_gvariant (gvalue=gvalue@entry=0x7fffffffdec0, type=0x7ffff7b9df91) at gdbusutils.c:604
#4 0x00007ffff7b8f1eb in _mm_gdbus_modem3gpp_skeleton_handle_get_property (connection=<optimized out>, sender=sender@entry=0x0, object_path=object_path@entry=0x7bd340 "/org/freedesktop/ModemManager1/Modem/1", interface_name=interface_name@entry=0x7ffff7b97320 "org.freedesktop.ModemManager1.Modem.Modem3gpp", property_name=property_name@entry=0x7ffff7baa0a4 "OperatorCode", error=error@entry=0x0, user_data=0x799ab0)
at mm-gdbus-modem.c:19680
#5 0x00007ffff7b8f894 in mm_gdbus_modem3gpp_skeleton_dbus_interface_get_properties (_skeleton=<optimized out>) at mm-gdbus-modem.c:19759
#6 0x00007ffff708e791 in g_dbus_interface_skeleton_get_properties (interface_=0x799ab0 [MmGdbusModem3gppSkeleton]) at gdbusinterfaceskeleton.c:371
#7 0x00007ffff70937a2 in manager_method_call (connection=<optimized out>, sender=sender@entry=0x7fffe0005200 ":1.270", object_path=object_path@entry=0x7fffe0002fd0 "/org/freedesktop/ModemManager1", interface_name=interface_name@entry=0x7fffe0002dd0 "org.freedesktop.DBus.ObjectManager", method_name=method_name@entry=0x7fffe00059e0 "GetManagedObjects", parameters=parameters@entry=0x7c1e70, invocation=0x7fffe0003260 [GDBusMethodInvocation], user_data=0x713cd0) at gdbusobjectmanagerserver.c:845
#8 0x00007ffff7076aac in call_in_idle_cb (user_data=0x7fffe0003260) at gdbusconnection.c:4884
#9 0x00007ffff6a6a7fb in g_main_context_dispatch (context=0x713a00) at gmain.c:3111
#10 0x00007ffff6a6a7fb in g_main_context_dispatch (context=context@entry=0x713a00) at gmain.c:3710
#11 0x00007ffff6a6ab98 in g_main_context_iterate (context=0x713a00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#12 0x00007ffff6a6aec2 in g_main_loop_run (loop=0x71bf50) at gmain.c:3975
#13 0x0000000000430e57 in main (argc=<optimized out>, argv=<optimized out>) at main.c:150
ModemManager. ModemManager provides a unified high level API for communicating with mobile broadband modems, regardless of the protocol used to communicate with the actual device (Generic AT, vendor-specific AT, QCDM, QMI, MBIM...). Using. ModemManager is a system daemon and is not meant to be used directly from the command line. However, since it provides a DBus API, it is possible to use 'dbus-send' commands or the new 'mmcli' command line interface to control it from the terminal. The devices are queried from udev and automatically updated based on hardware events, although a manual re-scan can also be requested to look for RS232 modems. Implementation. ModemManager is a DBus system bus activated service (meaning it's started automatically when a request arrives). It is written in C, using glib and gio. Several GInterfaces specify different features that the modems support, including the generic MMIfaceModem3gpp and MMIfaceModemCdma which provice basic operations for 3GPP (GSM, UMTS, LTE) or CDMA (CDMA1x, EV-DO) modems. If a given feature is not available in the modem, the specific interface will not be exported in DBus. Plugins. Plugins are loaded on startup, and must implement the MMPlugin interface. It consists of a couple of methods which tell the daemon whether the plugin supports a port and to create custom MMBroadbandModem implementations. It most likely makes sense to derive custom modem implementations from one of the generic classes and just add (or override) operations which are not standard. There are multiple fully working plugins in the plugins/ directory that can be used as an example for writing new plugins. Writing new plugins is highly encouraged! The plugin API is open for changes, so if you're writing a plugin and need to add or change some public method, feel free to suggest it! License. The ModemManager and mmcli binaries are both GPLv2+. The libmm-glib library is LGPLv2+.