# osmo_gsm_tester: DBUS client to talk to ofono # # Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH # # Author: Neels Hofmeyr # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from . import log, util, sms, process from .event_loop import MainLoop from pydbus import SystemBus, Variant import os # Required for Gio.Cancellable. # See https://lazka.github.io/pgi-docs/Gio-2.0/classes/Cancellable.html#Gio.Cancellable from gi.module import get_introspection_module Gio = get_introspection_module('Gio') from gi.repository import GLib bus = SystemBus() I_MODEM = 'org.ofono.Modem' I_NETREG = 'org.ofono.NetworkRegistration' I_SMS = 'org.ofono.MessageManager' I_CONNMGR = 'org.ofono.ConnectionManager' I_CALLMGR = 'org.ofono.VoiceCallManager' I_CALL = 'org.ofono.VoiceCall' I_SS = 'org.ofono.SupplementaryServices' I_SIMMGR = 'org.ofono.SimManager' # See https://github.com/intgr/ofono/blob/master/doc/network-api.txt#L78 NETREG_ST_REGISTERED = 'registered' NETREG_ST_ROAMING = 'roaming' NETREG_MAX_REGISTER_ATTEMPTS = 3 class DeferredDBus: def __init__(self, dbus_iface, handler): self.handler = handler self.subscription_id = dbus_iface.connect(self.receive_signal) def receive_signal(self, *args, **kwargs): MainLoop.defer(self.handler, *args, **kwargs) def dbus_connect(dbus_iface, handler): '''This function shall be used instead of directly connecting DBus signals. It ensures that we don't nest a glib main loop within another, and also that we receive exceptions raised within the signal handlers. This makes it so that a signal handler is invoked only after the DBus polling is through by enlisting signals that should be handled in the DeferredHandling.defer_queue.''' return DeferredDBus(dbus_iface, handler).subscription_id def systembus_get(path): global bus return bus.get('org.ofono', path) def list_modems(): root = systembus_get('/') return sorted(root.GetModems()) def get_dbuspath_from_syspath(syspath): modems = list_modems() for dbuspath, props in modems: if props.get('SystemPath', '') == syspath: return dbuspath raise ValueError('could not find %s in modem list: %s' % (syspath, modems)) def _async_result_handler(obj, result, user_data): '''Generic callback dispatcher called from glib loop when an async method call has returned. This callback is set up by method dbus_async_call.''' (result_callback, error_callback, real_user_data) = user_data try: ret = obj.call_finish(result) except Exception as e: if isinstance(e, GLib.Error) and e.code == Gio.IOErrorEnum.CANCELLED: log.dbg('DBus method cancelled') return if error_callback: error_callback(obj, e, real_user_data) else: result_callback(obj, e, real_user_data) return ret = ret.unpack() # to be compatible with standard Python behaviour, unbox # single-element tuples and return None for empty result tuples if len(ret) == 1: ret = ret[0] elif len(ret) == 0: ret = None result_callback(obj, ret, real_user_data) def dbus_async_call(instance, proxymethod, *proxymethod_args, result_handler=None, error_handler=None, user_data=None, timeout=30, cancellable=None, **proxymethod_kwargs): '''pydbus doesn't support asynchronous methods. This method adds support for it until pydbus implements it''' argdiff = len(proxymethod_args) - len(proxymethod._inargs) if argdiff < 0: raise TypeError(proxymethod.__qualname__ + " missing {} required positional argument(s)".format(-argdiff)) elif argdiff > 0: raise TypeError(proxymethod.__qualname__ + " takes {} positional argument(s) but {} was/were given".format(len(proxymethod._inargs), len(proxymethod_args))) timeout = timeout * 1000 user_data = (result_handler, error_handler, user_data) # See https://lazka.github.io/pgi-docs/Gio-2.0/classes/DBusProxy.html#Gio.DBusProxy.call ret = instance._bus.con.call( instance._bus_name, instance._path, proxymethod._iface_name, proxymethod.__name__, GLib.Variant(proxymethod._sinargs, proxymethod_args), GLib.VariantType.new(proxymethod._soutargs), 0, timeout, cancellable, _async_result_handler, user_data) def dbus_call_dismiss_error(log_obj, err_str, method): try: method() except GLib.Error as e: if Gio.DBusError.is_remote_error(e) and Gio.DBusError.get_remote_error(e) == err_str: log_obj.log('Dismissed Dbus method error: %r' % e) return raise e class ModemDbusInteraction(log.Origin): '''Work around inconveniences specific to pydbus and ofono. ofono adds and removes DBus interfaces and notifies about them. Upon changes we need a fresh pydbus object to benefit from that. Watching the interfaces change is optional; be sure to call watch_interfaces() if you'd like to have signals subscribed. Related: https://github.com/LEW21/pydbus/issues/56 ''' modem_path = None watch_props_subscription = None _dbus_obj = None interfaces = None def __init__(self, modem_path): self.modem_path = modem_path super().__init__(log.C_BUS, self.modem_path) self.interfaces = set() # A dict listing signal handlers to connect, e.g. # { I_SMS: ( ('IncomingMessage', self._on_incoming_message), ), } self.required_signals = {} # A dict collecting subscription tokens for connected signal handlers. # { I_SMS: ( token1, token2, ... ), } self.connected_signals = util.listdict() def cleanup(self): self.set_powered(False) self.unwatch_interfaces() for interface_name in list(self.connected_signals.keys()): self.remove_signals(interface_name) def __del__(self): self.cleanup() def get_new_dbus_obj(self): return systembus_get(self.modem_path) def dbus_obj(self): if self._dbus_obj is None: self._dbus_obj = self.get_new_dbus_obj() return self._dbus_obj def interface(self, interface_name): try: return self.dbus_obj()[interface_name] except KeyError: raise log.Error('Modem interface is not available:', interface_name) def signal(self, interface_name, signal): return getattr(self.interface(interface_name), signal) def watch_interfaces(self): self.unwatch_interfaces() # Note: we are watching the properties on a get_new_dbus_obj() that is # separate from the one used to interact with interfaces. We need to # refresh the pydbus object to interact with Interfaces that have newly # appeared, but exchanging the DBus object to watch Interfaces being # enabled and disabled is racy: we may skip some removals and # additions. Hence do not exchange this DBus object. We don't even # need to store the dbus object used for this, we will not touch it # again. We only store the signal subscription. self.watch_props_subscription = dbus_connect(self.get_new_dbus_obj().PropertyChanged, self.on_property_change) self.on_interfaces_change(self.properties().get('Interfaces')) def unwatch_interfaces(self): if self.watch_props_subscription is None: return self.watch_props_subscription.disconnect() self.watch_props_subscription = None def on_property_change(self, name, value): if name == 'Interfaces': self.on_interfaces_change(value) else: self.dbg('%r.PropertyChanged() -> %s=%s' % (I_MODEM, name, value)) def on_interfaces_change(self, interfaces_now): # First some logging. now = set(interfaces_now) additions = now - self.interfaces removals = self.interfaces - now self.interfaces = now if not (additions or removals): # nothing changed. return if additions: self.dbg('interface enabled:', ', '.join(sorted(additions))) if removals: self.dbg('interface disabled:', ', '.join(sorted(removals))) # The dbus object is now stale and needs refreshing before we # access the next interface function. self._dbus_obj = None # If an interface disappeared, disconnect the signal handlers for it. # Even though we're going to use a fresh dbus object for new # subscriptions, we will still keep active subscriptions alive on the # old dbus object which will linger, associated with the respective # signal subscription. for removed in removals: self.remove_signals(removed) # Connect signals for added interfaces. for interface_name in additions: self.connect_signals(interface_name) def remove_signals(self, interface_name): got = self.connected_signals.pop(interface_name, []) if not got: return self.dbg('Disconnecting', len(got), 'signals for', interface_name) for subscription in got: subscription.disconnect() def connect_signals(self, interface_name): # If an interface was added, it must not have existed before. For # paranoia, make sure we have no handlers for those. self.remove_signals(interface_name) want = self.required_signals.get(interface_name, []) if not want: return self.dbg('Connecting', len(want), 'signals for', interface_name) for signal, cb in self.required_signals.get(interface_name, []): subscription = dbus_connect(self.signal(interface_name, signal), cb) self.connected_signals.add(interface_name, subscription) def has_interface(self, *interface_names): try: for interface_name in interface_names: self.dbus_obj()[interface_name] result = True except KeyError: result = False self.dbg('has_interface(%s) ==' % (', '.join(interface_names)), result) return result def properties(self, iface=I_MODEM): return self.dbus_obj()[iface].GetProperties() def property_is(self, name, val, iface=I_MODEM): is_val = self.properties(iface).get(name) self.dbg(name, '==', is_val) return is_val is not None and is_val == val def set_bool(self, name, bool_val, iface=I_MODEM): # to make sure any pending signals are received before we send out more DBus requests MainLoop.poll() val = bool(bool_val) self.log('Setting', name, val) self.interface(iface).SetProperty(name, Variant('b', val)) MainLoop.wait(self, self.property_is, name, bool_val) def set_powered(self, powered=True): self.set_bool('Powered', powered) def set_online(self, online=True): self.set_bool('Online', online) def is_powered(self): return self.property_is('Powered', True) def is_online(self): return self.property_is('Online', True) class Modem(log.Origin): 'convenience for ofono Modem interaction' CTX_PROT_IPv4 = 'ip' CTX_PROT_IPv6 = 'ipv6' CTX_PROT_IPv46 = 'dual' def __init__(self, suite_run, conf): self.suite_run = suite_run self.conf = conf self.syspath = conf.get('path') self.dbuspath = get_dbuspath_from_syspath(self.syspath) super().__init__(log.C_TST, self.dbuspath) self.dbg('creating from syspath %s' % self.syspath) self.msisdn = None self._ki = None self._imsi = None self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name().strip('/'))) self.sms_received_list = [] self.dbus = ModemDbusInteraction(self.dbuspath) self.register_attempts = 0 self.call_list = [] # one Cancellable can handle several concurrent methods. self.cancellable = Gio.Cancellable.new() self.dbus.required_signals = { I_SMS: ( ('IncomingMessage', self._on_incoming_message), ), I_NETREG: ( ('PropertyChanged', self._on_netreg_property_changed), ), I_CONNMGR: ( ('PropertyChanged', self._on_connmgr_property_changed), ), I_CALLMGR: ( ('PropertyChanged', self._on_callmgr_property_changed), ('CallAdded', self._on_callmgr_call_added), ('CallRemoved', self._on_callmgr_call_removed), ), } self.dbus.watch_interfaces() def cleanup(self): self.dbg('cleanup') if self.cancellable: self.cancel_pending_dbus_methods() self.cancellable = None if self.is_powered(): self.power_off() self.dbus.cleanup() self.dbus = None def netns(self): return os.path.basename(self.syspath.rstrip('/')) def properties(self, *args, **kwargs): '''Return a dict of properties on this modem. For the actual arguments, see ModemDbusInteraction.properties(), which this function calls. The returned dict is defined by ofono. An example is: {'Lockdown': False, 'Powered': True, 'Model': 'MC7304', 'Revision': 'SWI9X15C_05.05.66.00 r29972 CARMD-EV-FRMWR1 2015/10/08 08:36:28', 'Manufacturer': 'Sierra Wireless, Incorporated', 'Emergency': False, 'Interfaces': ['org.ofono.SmartMessaging', 'org.ofono.PushNotification', 'org.ofono.MessageManager', 'org.ofono.NetworkRegistration', 'org.ofono.ConnectionManager', 'org.ofono.SupplementaryServices', 'org.ofono.RadioSettings', 'org.ofono.AllowedAccessPoints', 'org.ofono.SimManager', 'org.ofono.LocationReporting', 'org.ofono.VoiceCallManager'], 'Serial': '356853054230919', 'Features': ['sms', 'net', 'gprs', 'ussd', 'rat', 'sim', 'gps'], 'Type': 'hardware', 'Online': True} ''' return self.dbus.properties(*args, **kwargs) def set_powered(self, powered=True): return self.dbus.set_powered(powered=powered) def set_online(self, online=True): return self.dbus.set_online(online=online) def is_powered(self): return self.dbus.is_powered() def is_online(self): return self.dbus.is_online() def set_msisdn(self, msisdn): self.msisdn = msisdn def imsi(self): if self._imsi is None: if 'sim' in self.features(): if not self.is_powered(): self.set_powered() # wait for SimManager iface to appear after we power on MainLoop.wait(self, self.dbus.has_interface, I_SIMMGR, timeout=10) simmgr = self.dbus.interface(I_SIMMGR) # If properties are requested quickly, it may happen that Sim property is still not there. MainLoop.wait(self, lambda: simmgr.GetProperties().get('SubscriberIdentity', None) is not None, timeout=10) props = simmgr.GetProperties() self.dbg('got SIM properties', props) self._imsi = props.get('SubscriberIdentity', None) else: self._imsi = self.conf.get('imsi') if self._imsi is None: raise log.Error('No IMSI') return self._imsi def set_ki(self, ki): self._ki = ki def ki(self): if self._ki is not None: return self._ki return self.conf.get('ki') def auth_algo(self): return self.conf.get('auth_algo', None) def features(self): return self.conf.get('features', []) def _required_ifaces(self): req_ifaces = (I_NETREG,) req_ifaces += (I_SMS,) if 'sms' in self.features() else () req_ifaces += (I_SS,) if 'ussd' in self.features() else () req_ifaces += (I_CONNMGR,) if 'gprs' in self.features() else () req_ifaces += (I_SIMMGR,) if 'sim' in self.features() else () return req_ifaces def _on_netreg_property_changed(self, name, value): self.dbg('%r.PropertyChanged() -> %s=%s' % (I_NETREG, name, value)) def is_connected(self, mcc_mnc=None): netreg = self.dbus.interface(I_NETREG) prop = netreg.GetProperties() status = prop.get('Status') self.dbg('status:', status) if not (status == NETREG_ST_REGISTERED or status == NETREG_ST_ROAMING): return False if mcc_mnc is None: # Any network is fine and we are registered. return True mcc = prop.get('MobileCountryCode') mnc = prop.get('MobileNetworkCode') if (mcc, mnc) == mcc_mnc: return True return False def schedule_scan_register(self, mcc_mnc): if self.register_attempts > NETREG_MAX_REGISTER_ATTEMPTS: raise log.Error('Failed to find Network Operator', mcc_mnc=mcc_mnc, attempts=self.register_attempts) self.register_attempts += 1 netreg = self.dbus.interface(I_NETREG) self.dbg('Scanning for operators...') # Scan method can take several seconds, and we don't want to block # waiting for that. Make it async and try to register when the scan is # finished. register_func = self.scan_cb_register_automatic if mcc_mnc is None else self.scan_cb_register result_handler = lambda obj, result, user_data: MainLoop.defer(register_func, result, user_data) error_handler = lambda obj, e, user_data: MainLoop.defer(self.scan_cb_error_handler, e, mcc_mnc) dbus_async_call(netreg, netreg.Scan, timeout=30, cancellable=self.cancellable, result_handler=result_handler, error_handler=error_handler, user_data=mcc_mnc) def scan_cb_error_handler(self, e, mcc_mnc): # It was detected that Scan() method can fail for some modems on some # specific circumstances. For instance it fails with org.ofono.Error.Failed # if the modem starts to register internally after we started Scan() and # the registering succeeds while we are still waiting for Scan() to finsih. # So far the easiest seems to check if we are now registered and # otherwise schedule a scan again. self.err('Scan() failed, retrying if needed:', e) if not self.is_connected(mcc_mnc): self.schedule_scan_register(mcc_mnc) else: self.log('Already registered with network', mcc_mnc) def scan_cb_register_automatic(self, scanned_operators, mcc_mnc): self.dbg('scanned operators: ', scanned_operators); for op_path, op_prop in scanned_operators: if op_prop.get('Status') == 'current': mcc = op_prop.get('MobileCountryCode') mnc = op_prop.get('MobileNetworkCode') self.log('Already registered with network', (mcc, mnc)) return self.log('Registering with the default network') netreg = self.dbus.interface(I_NETREG) dbus_call_dismiss_error(self, 'org.ofono.Error.InProgress', netreg.Register) def scan_cb_register(self, scanned_operators, mcc_mnc): self.dbg('scanned operators: ', scanned_operators); matching_op_path = None for op_path, op_prop in scanned_operators: mcc = op_prop.get('MobileCountryCode') mnc = op_prop.get('MobileNetworkCode') if (mcc, mnc) == mcc_mnc: if op_prop.get('Status') == 'current': self.log('Already registered with network', mcc_mnc) # We discovered the network and we are already registered # with it. Avoid calling op.Register() in this case (it # won't act as a NO-OP, it actually returns an error). return matching_op_path = op_path break if matching_op_path is None: self.dbg('Failed to find Network Operator', mcc_mnc=mcc_mnc, attempts=self.register_attempts) self.schedule_scan_register(mcc_mnc) return dbus_op = systembus_get(matching_op_path) self.log('Registering with operator', matching_op_path, mcc_mnc) try: dbus_call_dismiss_error(self, 'org.ofono.Error.InProgress', dbus_op.Register) except GLib.Error as e: if Gio.DBusError.is_remote_error(e) and Gio.DBusError.get_remote_error(e) == 'org.ofono.Error.NotSupported': self.log('modem does not support manual registering, attempting automatic registering') self.scan_cb_register_automatic(scanned_operators, mcc_mnc) return raise e def cancel_pending_dbus_methods(self): self.cancellable.cancel() # Cancel op is applied as a signal coming from glib mainloop, so we # need to run it and wait for the callbacks to handle cancellations. MainLoop.poll() # once it has been triggered, create a new one for next operation: self.cancellable = Gio.Cancellable.new() def power_off(self): if self.dbus.has_interface(I_CONNMGR) and self.is_attached(): self.detach() self.set_online(False) self.set_powered(False) req_ifaces = self._required_ifaces() for iface in req_ifaces: MainLoop.wait(self, lambda: not self.dbus.has_interface(iface), timeout=10) def power_cycle(self): 'Power the modem and put it online, power cycle it if it was already on' req_ifaces = self._required_ifaces() if self.is_powered(): self.dbg('Power cycling') MainLoop.sleep(self, 1.0) # workaround for ofono bug OS#3064 self.power_off() else: self.dbg('Powering on') self.set_powered() self.set_online() MainLoop.wait(self, self.dbus.has_interface, *req_ifaces, timeout=10) def connect(self, mcc_mnc=None): 'Connect to MCC+MNC' if (mcc_mnc is not None) and (len(mcc_mnc) != 2 or None in mcc_mnc): raise log.Error('mcc_mnc value is invalid. It should be None or contain both valid mcc and mnc values:', mcc_mnc=mcc_mnc) # if test called connect() before and async scanning has not finished, we need to get rid of it: self.cancel_pending_dbus_methods() self.power_cycle() self.register_attempts = 0 if self.is_connected(mcc_mnc): self.log('Already registered with', mcc_mnc if mcc_mnc else 'default network') else: self.log('Connect to', mcc_mnc if mcc_mnc else 'default network') self.schedule_scan_register(mcc_mnc) def is_attached(self): connmgr = self.dbus.interface(I_CONNMGR) prop = connmgr.GetProperties() attached = prop.get('Attached') self.dbg('attached:', attached) return attached def attach(self, allow_roaming=False): self.dbg('attach') if self.is_attached(): self.detach() connmgr = self.dbus.interface(I_CONNMGR) prop = connmgr.SetProperty('RoamingAllowed', Variant('b', allow_roaming)) prop = connmgr.SetProperty('Powered', Variant('b', True)) def detach(self): self.dbg('detach') connmgr = self.dbus.interface(I_CONNMGR) prop = connmgr.SetProperty('RoamingAllowed', Variant('b', False)) prop = connmgr.SetProperty('Powered', Variant('b', False)) connmgr.DeactivateAll() connmgr.ResetContexts() # Requires Powered=false def activate_context(self, apn='internet', user='ogt', pwd='', protocol='ip'): self.dbg('activate_context', apn=apn, user=user, protocol=protocol) connmgr = self.dbus.interface(I_CONNMGR) ctx_path = connmgr.AddContext('internet') ctx = systembus_get(ctx_path) ctx.SetProperty('AccessPointName', Variant('s', apn)) ctx.SetProperty('Username', Variant('s', user)) ctx.SetProperty('Password', Variant('s', pwd)) ctx.SetProperty('Protocol', Variant('s', protocol)) # Activate can only be called after we are attached ctx.SetProperty('Active', Variant('b', True)) MainLoop.wait(self, lambda: ctx.GetProperties()['Active'] == True) self.log('context activated', path=ctx_path, apn=apn, user=user, properties=ctx.GetProperties()) return ctx_path def deactivate_context(self, ctx_id): self.dbg('deactivate_context', path=ctx_id) ctx = systembus_get(ctx_id) ctx.SetProperty('Active', Variant('b', False)) MainLoop.wait(self, lambda: ctx.GetProperties()['Active'] == False) self.dbg('deactivate_context active=false, removing', path=ctx_id) connmgr = self.dbus.interface(I_CONNMGR) connmgr.RemoveContext(ctx_id) self.log('context deactivated', path=ctx_id) def run_netns_wait(self, name, popen_args): proc = process.NetNSProcess(name, self.run_dir.new_dir(name), self.netns(), popen_args, env={}) process.run_proc_sync(proc) def setup_context_data_plane(self, ctx_id): self.dbg('setup_context_data', path=ctx_id) ctx = systembus_get(ctx_id) ctx_settings = ctx.GetProperties().get('Settings', None) if not ctx_settings: raise log.Error('%s no Settings found! No way to get iface!' % ctx_id) iface = ctx_settings.get('Interface', None) if not iface: raise log.Error('%s Settings contains no iface! %r' % (ctx_id, repr(ctx_settings))) self.run_netns_wait('ifup', ('ip', 'link', 'set', 'dev', iface, 'up')) self.run_netns_wait('dhcp', ('udhcpc', '-q', '-i', iface)) def sms_send(self, to_msisdn_or_modem, *tokens): if isinstance(to_msisdn_or_modem, Modem): to_msisdn = to_msisdn_or_modem.msisdn tokens = list(tokens) tokens.append('to ' + to_msisdn_or_modem.name()) else: to_msisdn = str(to_msisdn_or_modem) msg = sms.Sms(self.msisdn, to_msisdn, 'from ' + self.name(), *tokens) self.log('sending sms to MSISDN', to_msisdn, sms=msg) mm = self.dbus.interface(I_SMS) mm.SendMessage(to_msisdn, str(msg)) return msg def _on_incoming_message(self, message, info): self.log('Incoming SMS:', repr(message)) self.dbg(info=info) self.sms_received_list.append((message, info)) def sms_was_received(self, sms_obj): for msg, info in self.sms_received_list: if sms_obj.matches(msg): self.log('SMS received as expected:', repr(msg)) self.dbg(info=info) return True return False def call_id_list(self): self.dbg('call_id_list: %r' % self.call_list) return self.call_list def call_dial(self, to_msisdn_or_modem): if isinstance(to_msisdn_or_modem, Modem): to_msisdn = to_msisdn_or_modem.msisdn else: to_msisdn = str(to_msisdn_or_modem) self.dbg('Dialing:', to_msisdn) cmgr = self.dbus.interface(I_CALLMGR) call_obj_path = cmgr.Dial(to_msisdn, 'default') if call_obj_path not in self.call_list: self.dbg('Adding %s to call list' % call_obj_path) self.call_list.append(call_obj_path) else: self.dbg('Dial returned already existing call') return call_obj_path def _find_call_msisdn_state(self, msisdn, state): cmgr = self.dbus.interface(I_CALLMGR) ret = cmgr.GetCalls() for obj_path, props in ret: if props['LineIdentification'] == msisdn and props['State'] == state: return obj_path return None def call_wait_incoming(self, caller_msisdn_or_modem, timeout=60): if isinstance(caller_msisdn_or_modem, Modem): caller_msisdn = caller_msisdn_or_modem.msisdn else: caller_msisdn = str(caller_msisdn_or_modem) self.dbg('Waiting for incoming call from:', caller_msisdn) MainLoop.wait(self, lambda: self._find_call_msisdn_state(caller_msisdn, 'incoming') is not None, timeout=timeout) return self._find_call_msisdn_state(caller_msisdn, 'incoming') def call_answer(self, call_id): self.dbg('Answer call %s' % call_id) assert self.call_state(call_id) == 'incoming' call_dbus_obj = systembus_get(call_id) call_dbus_obj.Answer() def call_hangup(self, call_id): self.dbg('Hang up call %s' % call_id) call_dbus_obj = systembus_get(call_id) call_dbus_obj.Hangup() def call_is_active(self, call_id): return self.call_state(call_id) == 'active' def call_state(self, call_id): try: call_dbus_obj = systembus_get(call_id) props = call_dbus_obj.GetProperties() state = props.get('State') except Exception as e: self.log('asking call state for non existent call') log.log_exn() state = 'disconnected' self.dbg('call state: %s' % state) return state def _on_callmgr_call_added(self, obj_path, properties): self.dbg('%r.CallAdded() -> %s=%r' % (I_CALLMGR, obj_path, repr(properties))) if obj_path not in self.call_list: self.call_list.append(obj_path) else: self.dbg('Call already exists %r' % obj_path) def _on_callmgr_call_removed(self, obj_path): self.dbg('%r.CallRemoved() -> %s' % (I_CALLMGR, obj_path)) if obj_path in self.call_list: self.call_list.remove(obj_path) else: self.dbg('Trying to remove non-existing call %r' % obj_path) def _on_callmgr_property_changed(self, name, value): self.dbg('%r.PropertyChanged() -> %s=%s' % (I_CALLMGR, name, value)) def _on_connmgr_property_changed(self, name, value): self.dbg('%r.PropertyChanged() -> %s=%s' % (I_CONNMGR, name, value)) def info(self, keys=('Manufacturer', 'Model', 'Revision', 'Serial')): props = self.properties() return ', '.join(['%s: %r'%(k,props.get(k)) for k in keys]) def log_info(self, *args, **kwargs): self.log(self.info(*args, **kwargs)) def ussd_send(self, command): ss = self.dbus.interface(I_SS) service_type, response = ss.Initiate(command) return response # vim: expandtab tabstop=4 shiftwidth=4