modem: Identify modems by sysfs path instead of ofono dbus path
ofono dbus paths are non-deterministic and can change over time for a given modem. For instance when ofono is restartd or if a modem crashes and the object is destroyed and re-announced by udev. Requires at least ofono 1df92289d4e09a1e2db0b189b5153a4c238f98f1, which implemented the feature to export the sysfs path to modem properties. Related: OS#2509 Change-Id: Ibc45a196abadded2706dc9d57b6a3a796b43a201
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@ -67,16 +67,16 @@ arfcn:
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band: GSM-1900
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modem:
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- label: sierra_1
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path: '/sierra_1'
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- label: sierra_1st
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path: '/sys/devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1.2'
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imsi: '901700000009031'
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ki: '80A37E6FDEA931EAC92FFA5F671EFEAD'
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auth_algo: 'comp128v1'
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ciphers: [a5_0, a5_1]
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features: ['sms', 'voice', 'ussd', 'gprs']
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- label: sierra_2
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path: '/sierra_2'
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- label: sierra_2nd
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path: '/sys/devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1.3'
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imsi: '901700000009029'
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ki: '00969E283349D354A8239E877F2E0866'
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auth_algo: 'comp128v1'
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@ -84,7 +84,7 @@ modem:
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features: ['sms', 'voice', 'ussd', 'gprs']
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- label: ec20
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path: '/gobi_0'
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path: '/sys/devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1.6'
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imsi: '901700000009030'
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ki: 'BB70807226393CDBAC8DD3439FF54252'
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auth_algo: 'comp128v1'
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@ -92,7 +92,7 @@ modem:
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features: ['sms', 'ussd', 'gprs']
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- label: gobi2k
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path: '/gobi_3'
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path: '/sys/devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1.5'
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imsi: '901700000009032'
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ki: '2F70DCA43C45ACB97E947FDD0C7CA30A'
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auth_algo: 'comp128v1'
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@ -92,6 +92,14 @@ def list_modems():
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root = systembus_get('/')
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return sorted(root.GetModems())
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def get_dbuspath_from_syspath(syspath):
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modems = list_modems()
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for dbuspath, props in modems:
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if props.get('SystemPath', '') == syspath:
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return dbuspath
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raise ValueError('could not find %s in modem list: %s' % (syspath, modems))
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def _async_result_handler(obj, result, user_data):
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'''Generic callback dispatcher called from glib loop when an async method
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call has returned. This callback is set up by method dbus_async_call.'''
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@ -341,10 +349,12 @@ class Modem(log.Origin):
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def __init__(self, conf):
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self.conf = conf
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self.path = conf.get('path')
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super().__init__(log.C_TST, self.path)
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self.syspath = conf.get('path')
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self.dbuspath = get_dbuspath_from_syspath(self.syspath)
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super().__init__(log.C_TST, self.dbuspath)
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self.dbg('creating from syspath %s', self.syspath)
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self.sms_received_list = []
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self.dbus = ModemDbusInteraction(self.path)
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self.dbus = ModemDbusInteraction(self.dbuspath)
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self.register_attempts = 0
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self.call_list = []
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# one Cancellable can handle several concurrent methods.
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