diff options
Diffstat (limited to 'src/hardware/nmclient.py')
| -rw-r--r-- | src/hardware/nmclient.py | 721 |
1 files changed, 721 insertions, 0 deletions
diff --git a/src/hardware/nmclient.py b/src/hardware/nmclient.py new file mode 100644 index 0000000..d23a206 --- /dev/null +++ b/src/hardware/nmclient.py @@ -0,0 +1,721 @@ +# +# Copyright (C) 2006-2007 Red Hat, Inc. +# +# 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 2 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, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +import logging +import os + +import dbus +import dbus.glib +import dbus.decorators +import gobject +import gtk + +from hardware import nminfo +from sugar.graphics import xocolor + +IW_AUTH_ALG_OPEN_SYSTEM = 0x00000001 +IW_AUTH_ALG_SHARED_KEY = 0x00000002 + +NM_DEVICE_STAGE_STRINGS=("Unknown", + "Prepare", + "Config", + "Need Users Key", + "IP Config", + "IP Config Get", + "IP Config Commit", + "Activated", + "Failed", + "Canceled" +) + +NM_SERVICE = 'org.freedesktop.NetworkManager' +NM_IFACE = 'org.freedesktop.NetworkManager' +NM_IFACE_DEVICES = 'org.freedesktop.NetworkManager.Devices' +NM_PATH = '/org/freedesktop/NetworkManager' + +DEVICE_TYPE_UNKNOWN = 0 +DEVICE_TYPE_802_3_ETHERNET = 1 +DEVICE_TYPE_802_11_WIRELESS = 2 +DEVICE_TYPE_802_11_MESH_OLPC = 3 + +NM_DEVICE_CAP_NONE = 0x00000000 +NM_DEVICE_CAP_NM_SUPPORTED = 0x00000001 +NM_DEVICE_CAP_CARRIER_DETECT = 0x00000002 +NM_DEVICE_CAP_WIRELESS_SCAN = 0x00000004 + +sys_bus = dbus.SystemBus() + +NM_802_11_CAP_NONE = 0x00000000 +NM_802_11_CAP_PROTO_NONE = 0x00000001 +NM_802_11_CAP_PROTO_WEP = 0x00000002 +NM_802_11_CAP_PROTO_WPA = 0x00000004 +NM_802_11_CAP_PROTO_WPA2 = 0x00000008 +NM_802_11_CAP_KEY_MGMT_PSK = 0x00000040 +NM_802_11_CAP_KEY_MGMT_802_1X = 0x00000080 +NM_802_11_CAP_CIPHER_WEP40 = 0x00001000 +NM_802_11_CAP_CIPHER_WEP104 = 0x00002000 +NM_802_11_CAP_CIPHER_TKIP = 0x00004000 +NM_802_11_CAP_CIPHER_CCMP = 0x00008000 + +NETWORK_STATE_CONNECTING = 0 +NETWORK_STATE_CONNECTED = 1 +NETWORK_STATE_NOTCONNECTED = 2 + +DEVICE_STATE_ACTIVATING = 0 +DEVICE_STATE_ACTIVATED = 1 +DEVICE_STATE_INACTIVE = 2 + +IW_MODE_ADHOC = 1 +IW_MODE_INFRA = 2 + +class Network(gobject.GObject): + __gsignals__ = { + 'initialized' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([gobject.TYPE_BOOLEAN])), + 'strength-changed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'state-changed' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])) + } + + def __init__(self, client, op): + gobject.GObject.__init__(self) + self._client = client + self._op = op + self._ssid = None + self._mode = None + self._strength = 0 + self._caps = 0 + self._valid = False + self._favorite = False + self._state = NETWORK_STATE_NOTCONNECTED + + obj = sys_bus.get_object(NM_SERVICE, self._op) + net = dbus.Interface(obj, NM_IFACE_DEVICES) + net.getProperties(reply_handler=self._update_reply_cb, + error_handler=self._update_error_cb) + + def _update_reply_cb(self, *props): + self._ssid = props[1] + self._strength = props[3] + self._mode = props[6] + self._caps = props[7] + if self._caps & NM_802_11_CAP_PROTO_WPA or self._caps & NM_802_11_CAP_PROTO_WPA2: + if not (self._caps & NM_802_11_CAP_KEY_MGMT_PSK): + # 802.1x is not supported at this time + logging.debug("Net(%s): ssid '%s' dropping because 802.1x is unsupported" % (self._op, + self._ssid)) + self._valid = False + self.emit('initialized', self._valid) + return + if self._mode != IW_MODE_INFRA: + # Don't show Ad-Hoc networks; they usually don't DHCP and therefore + # won't work well here. This also works around the bug where we show + # our own mesh SSID on the Mesh view when in mesh mode + logging.debug("Net(%s): ssid '%s' is adhoc; not showing" % (self._op, + self._ssid)) + self._valid = False + self.emit('initialized', self._valid) + return + + fav_nets = [] + if self._client.nminfo: + fav_nets = self._client.nminfo.get_networks(nminfo.NETWORK_TYPE_ALLOWED) + if self._ssid in fav_nets: + self._favorite = True + + self._valid = True + logging.debug("Net(%s): caps 0x%X" % (self._ssid, self._caps)) + self.emit('initialized', self._valid) + + def _update_error_cb(self, err): + logging.debug("Net(%s): failed to update. (%s)" % (self._op, err)) + self._valid = False + self.emit('initialized', self._valid) + + def get_colors(self): + import sha + sh = sha.new() + data = self._ssid + hex(self._caps) + hex(self._mode) + sh.update(data) + h = hash(sh.digest()) + idx = h % len(xocolor._colors) + # stroke, fill + return (xocolor._colors[idx][0], xocolor._colors[idx][1]) + + def get_ssid(self): + return self._ssid + + def get_caps(self): + return self._caps + + def get_mode(self): + return self._mode + + def get_state(self): + return self._state + + def set_state(self, state): + if state == self._state: + return + self._state = state + if self._valid: + self.emit('state-changed') + + def get_op(self): + return self._op + + def get_strength(self): + return self._strength + + def set_strength(self, strength): + if strength == self._strength: + return + self._strength = strength + if self._valid: + self.emit('strength-changed') + + def is_valid(self): + return self._valid + + def is_favorite(self): + return self._favorite + +class Device(gobject.GObject): + __gsignals__ = { + 'initialized': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'init-failed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'ssid-changed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'strength-changed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'state-changed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'activation-stage-changed': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, ([])), + 'network-appeared': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])), + 'network-disappeared': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])) + } + + def __init__(self, client, op): + gobject.GObject.__init__(self) + self._client = client + self._op = op + self._iface = None + self._type = DEVICE_TYPE_UNKNOWN + self._udi = None + self._active = False + self._act_stage = 0 + self._strength = 0 + self._freq = 0.0 + self._link = False + self._valid = False + self._networks = {} + self._caps = 0 + self._state = DEVICE_STATE_INACTIVE + self._active_network = None + self._active_net_sigid = 0 + + obj = sys_bus.get_object(NM_SERVICE, self._op) + self.dev = dbus.Interface(obj, NM_IFACE_DEVICES) + self.dev.getProperties(reply_handler=self._update_reply_cb, + error_handler=self._update_error_cb) + + def _is_activating(self): + if self._active and self._act_stage >= 1 and self._act_stage <= 6: + return True + return False + + def _is_activated(self): + if self._active and self._act_stage == 7: + return True + return False + + def _update_reply_cb(self, *props): + self._iface = props[1] + self._type = props[2] + self._udi = props[3] + self._active = props[4] + self._act_stage = props[5] + self._link = props[15] + self._caps = props[17] + + if self._type == DEVICE_TYPE_802_11_WIRELESS: + old_strength = self._strength + self._strength = props[14] + if self._strength != old_strength: + if self._valid: + self.emit('strength-changed') + self._update_networks(props[20], props[19]) + elif self._type == DEVICE_TYPE_802_11_MESH_OLPC: + old_strength = self._strength + self._strength = props[14] + if self._strength != old_strength: + if self._valid: + self.emit('strength-changed') + + self._valid = True + + if self._is_activating(): + self.set_state(DEVICE_STATE_ACTIVATING) + elif self._is_activated(): + self.set_state(DEVICE_STATE_ACTIVATED) + else: + self.set_state(DEVICE_STATE_INACTIVE) + + self.emit('initialized') + + def _update_networks(self, net_ops, active_op): + for op in net_ops: + net = Network(self._client, op) + self._networks[op] = net + net.connect('initialized', lambda *args: self._net_initialized_cb(active_op, *args)) + + def _update_error_cb(self, err): + logging.debug("Device(%s): failed to update. (%s)" % (self._op, err)) + self._valid = False + self.emit('init-failed') + + def _net_initialized_cb(self, active_op, net, valid): + net_op = net.get_op() + if not self._networks.has_key(net_op): + return + + if not valid: + # init failure + del self._networks[net_op] + return + + # init success + if self._valid: + self.emit('network-appeared', net) + if active_op and net_op == active_op: + self.set_active_network(net) + + def get_op(self): + return self._op + + def get_networks(self): + ret = [] + for net in self._networks.values(): + if net.is_valid(): + ret.append(net) + return ret + + def get_network(self, op): + if self._networks.has_key(op) and self._networks[op].is_valid(): + return self._networks[op] + return None + + def get_network_ops(self): + ret = [] + for net in self._networks.values(): + if net.is_valid(): + ret.append(net.get_op()) + return ret + + def get_mesh_step(self): + if self._type != DEVICE_TYPE_802_11_MESH_OLPC: + raise RuntimeError("Only valid for mesh devices") + try: + step = self.dev.getMeshStep(timeout=3) + except dbus.DBusException, e: + step = 0 + return step + + def get_frequency(self): + freq = 0.0 + try: + freq = self.dev.getFrequency(timeout=3) + except dbus.DBusException, e: + pass + # Hz -> GHz + self._freq = freq / 1000000000.0 + return self._freq + + def get_strength(self): + return self._strength + + def set_strength(self, strength): + if strength == self._strength: + return False + + if strength >= 0 and strength <= 100: + self._strength = strength + else: + self._strength = 0 + + if self._valid: + self.emit('strength-changed') + + def network_appeared(self, network): + if self._networks.has_key(network): + return + net = Network(self._client, network) + self._networks[network] = net + net.connect('initialized', lambda *args: self._net_initialized_cb(None, *args)) + + def network_disappeared(self, network): + if not self._networks.has_key(network): + return + + if self._valid: + self.emit('network-disappeared', self._networks[network]) + + del self._networks[network] + + def set_active_network(self, network): + if self._active_network == network: + return + + # Make sure the old one doesn't get a stuck state + if self._active_network: + self._active_network.set_state(NETWORK_STATE_NOTCONNECTED) + self._active_network.disconnect(self._active_net_sigid) + + self._active_network = network + + if self._active_network: + self._active_net_sigid = self._active_network.connect("initialized", + self._active_net_initialized); + + # don't emit ssid-changed for networks that are not yet valid + if self._valid: + if self._active_network and self._active_network.is_valid(): + self.emit('ssid-changed') + elif not self._active_network: + self.emit('ssid-changed') + + def _active_net_initialized(self, net, user_data=None): + if self._active_network and self._active_network.is_valid(): + self.emit('ssid-changed') + + def _get_active_net_cb(self, state, net_op): + if not self._networks.has_key(net_op): + self.set_active_network(None) + return + + self.set_active_network(self._networks[net_op]) + + _device_to_network_state = { + DEVICE_STATE_ACTIVATING : NETWORK_STATE_CONNECTING, + DEVICE_STATE_ACTIVATED : NETWORK_STATE_CONNECTED, + DEVICE_STATE_INACTIVE : NETWORK_STATE_NOTCONNECTED + } + + network_state = _device_to_network_state[state] + self._active_network.set_state(network_state) + + def _get_active_net_error_cb(self, err): + logging.debug("Couldn't get active network: %s" % err) + self.set_active_network(None) + + def get_state(self): + return self._state + + def set_state(self, state): + if state == self._state: + return + + if state == DEVICE_STATE_INACTIVE: + self._act_stage = 0 + + self._state = state + if self._valid: + self.emit('state-changed') + + if self._type == DEVICE_TYPE_802_11_WIRELESS: + if state == DEVICE_STATE_INACTIVE: + self.set_active_network(None) + else: + self.dev.getActiveNetwork(reply_handler=lambda *args: self._get_active_net_cb(state, *args), + error_handler=self._get_active_net_error_cb) + + def set_activation_stage(self, stage): + if stage == self._act_stage: + return + self._act_stage = stage + if self._valid: + self.emit('activation-stage-changed') + + def get_activation_stage(self): + return self._act_stage + + def get_ssid(self): + if self._active_network and self._active_network.is_valid(): + return self._active_network.get_ssid() + elif not self._active_network: + return None + + def get_active_network(self): + return self._active_network + + def get_type(self): + return self._type + + def is_valid(self): + return self._valid + + def set_carrier(self, on): + self._link = on + + def get_capabilities(self): + return self._caps + +class NMClient(gobject.GObject): + __gsignals__ = { + 'device-added' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])), + 'device-activated' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])), + 'device-activating': (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])), + 'device-removed' : (gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + ([gobject.TYPE_PYOBJECT])) + } + + def __init__(self): + gobject.GObject.__init__(self) + + self.nminfo = None + self._nm_present = False + self._update_timer = 0 + self._devices = {} + + try: + self.nminfo = nminfo.NMInfo(self) + except RuntimeError: + pass + self._setup_dbus() + if self._nm_present: + self._get_initial_devices() + + def get_devices(self): + return self._devices.values() + + def _get_initial_devices_reply_cb(self, ops): + for op in ops: + self._add_device(op) + + def _dev_initialized_cb(self, dev): + self.emit('device-added', dev) + + def _dev_init_failed_cb(self, dev): + # Device failed to initialize, likely due to dbus errors or something + op = dev.get_op() + self._remove_device(op) + + def _get_initial_devices_error_cb(self, err): + logging.debug("Error updating devices (%s)" % err) + + def _get_initial_devices(self): + self._nm_obj.getDevices(reply_handler=self._get_initial_devices_reply_cb, \ + error_handler=self._get_initial_devices_error_cb) + + def _add_device(self, dev_op): + if self._devices.has_key(dev_op): + return + dev = Device(self, dev_op) + self._devices[dev_op] = dev + dev.connect('init-failed', self._dev_init_failed_cb) + dev.connect('initialized', self._dev_initialized_cb) + dev.connect('state-changed', self._dev_state_changed_cb) + + def _remove_device(self, dev_op): + if not self._devices.has_key(dev_op): + return + dev = self._devices[dev_op] + if dev.is_valid(): + self.emit('device-removed', dev) + del self._devices[dev_op] + + def _dev_state_changed_cb(self, dev): + op = dev.get_op() + if not self._devices.has_key(op) or not dev.is_valid(): + return + if dev.get_state() == DEVICE_STATE_ACTIVATING: + self.emit('device-activating', dev) + elif dev.get_state() == DEVICE_STATE_ACTIVATED: + self.emit('device-activated', dev) + + def get_device(self, dev_op): + if not self._devices.has_key(dev_op): + return None + return self._devices[dev_op] + + def _setup_dbus(self): + self._sig_handlers = { + 'StateChange': self.state_changed_sig_handler, + 'DeviceAdded': self.device_added_sig_handler, + 'DeviceRemoved': self.device_removed_sig_handler, + 'DeviceActivationStage': self.device_activation_stage_sig_handler, + 'DeviceActivating': self.device_activating_sig_handler, + 'DeviceNowActive': self.device_now_active_sig_handler, + 'DeviceNoLongerActive': self.device_no_longer_active_sig_handler, + 'DeviceActivationFailed': self.device_activation_failed_sig_handler, + 'DeviceCarrierOn': self.device_carrier_on_sig_handler, + 'DeviceCarrierOff': self.device_carrier_off_sig_handler, + 'DeviceStrengthChanged': self.wireless_device_strength_changed_sig_handler, + 'WirelessNetworkAppeared': self.wireless_network_appeared_sig_handler, + 'WirelessNetworkDisappeared': self.wireless_network_disappeared_sig_handler, + 'WirelessNetworkStrengthChanged': self.wireless_network_strength_changed_sig_handler + } + + try: + self._nm_proxy = sys_bus.get_object(NM_SERVICE, NM_PATH) + self._nm_obj = dbus.Interface(self._nm_proxy, NM_IFACE) + except dbus.DBusException, e: + logging.debug("Could not connect to NetworkManager!") + self._nm_present = False + return + + sys_bus.add_signal_receiver(self.name_owner_changed_sig_handler, + signal_name="NameOwnerChanged", + dbus_interface="org.freedesktop.DBus") + + for (signal, handler) in self._sig_handlers.items(): + sys_bus.add_signal_receiver(handler, signal_name=signal, dbus_interface=NM_IFACE) + + # Find out whether or not NMI is running + try: + bus_object = sys_bus.get_object('org.freedesktop.DBus', '/org/freedesktop/DBus') + name = bus_object.GetNameOwner("org.freedesktop.NetworkManagerInfo", \ + dbus_interface='org.freedesktop.DBus') + if name: + self._nm_present = True + except dbus.DBusException: + pass + + def set_active_device(self, device, network=None, mesh_freq=None, mesh_start=None): + ssid = "" + if network: + ssid = network.get_ssid() + if device.get_type() == DEVICE_TYPE_802_11_MESH_OLPC: + if mesh_freq or mesh_start: + if mesh_freq and not mesh_start: + self._nm_obj.setActiveDevice(device.get_op(), dbus.Double(mesh_freq)) + elif mesh_start and not mesh_freq: + self._nm_obj.setActiveDevice(device.get_op(), dbus.Double(0.0), dbus.UInt32(mesh_start)) + else: + self._nm_obj.setActiveDevice(device.get_op(), dbus.Double(mesh_freq), dbus.UInt32(mesh_start)) + else: + self._nm_obj.setActiveDevice(device.get_op()) + else: + self._nm_obj.setActiveDevice(device.get_op(), ssid) + + def state_changed_sig_handler(self, new_state): + logging.debug('NM State Changed to %d' % new_state) + + def device_activation_stage_sig_handler(self, device, stage): + logging.debug('Device Activation Stage "%s" for device %s' % (NM_DEVICE_STAGE_STRINGS[stage], device)) + if not self._devices.has_key(device): + logging.debug('DeviceActivationStage, device %s does not exist' % (device)) + return + self._devices[device].set_activation_stage(stage) + + def device_activating_sig_handler(self, device): + logging.debug('DeviceActivating for %s' % (device)) + if not self._devices.has_key(device): + logging.debug('DeviceActivating, device %s does not exist' % (device)) + return + self._devices[device].set_state(DEVICE_STATE_ACTIVATING) + + def device_now_active_sig_handler(self, device, ssid=None): + logging.debug('DeviceNowActive for %s' % (device)) + if not self._devices.has_key(device): + logging.debug('DeviceNowActive, device %s does not exist' % (device)) + return + self._devices[device].set_state(DEVICE_STATE_ACTIVATED) + + def device_no_longer_active_sig_handler(self, device): + logging.debug('DeviceNoLongerActive for %s' % (device)) + if not self._devices.has_key(device): + logging.debug('DeviceNoLongerActive, device %s does not exist' % (device)) + return + self._devices[device].set_state(DEVICE_STATE_INACTIVE) + + def device_activation_failed_sig_handler(self, device, ssid=None): + logging.debug('DeviceActivationFailed for %s' % (device)) + if not self._devices.has_key(device): + logging.debug('DeviceActivationFailed, device %s does not exist' % (device)) + return + self._devices[device].set_state(DEVICE_STATE_INACTIVE) + + def name_owner_changed_sig_handler(self, name, old, new): + if name != NM_SERVICE: + return + if (old and len(old)) and (not new and not len(new)): + # NM went away + self._nm_present = False + devs = self._devices.keys() + for op in devs: + self._remove_device(op) + self._devices = {} + elif (not old and not len(old)) and (new and len(new)): + # NM started up + self._nm_present = True + self._get_initial_devices() + + def device_added_sig_handler(self, device): + logging.debug('DeviceAdded for %s' % (device)) + self._add_device(device) + + def device_removed_sig_handler(self, device): + logging.debug('DeviceRemoved for %s' % (device)) + self._remove_device(device) + + def wireless_network_appeared_sig_handler(self, device, network): + if not self._devices.has_key(device): + return + self._devices[device].network_appeared(network) + + def wireless_network_disappeared_sig_handler(self, device, network): + if not self._devices.has_key(device): + return + self._devices[device].network_disappeared(network) + + def wireless_device_strength_changed_sig_handler(self, device, strength): + if not self._devices.has_key(device): + return + self._devices[device].set_strength(strength) + + def wireless_network_strength_changed_sig_handler(self, device, network, strength): + if not self._devices.has_key(device): + return + net = self._devices[device].get_network(network) + if net: + net.set_strength(strength) + + def device_carrier_on_sig_handler(self, device): + if not self._devices.has_key(device): + return + self._devices[device].set_carrier(True) + + def device_carrier_off_sig_handler(self, device): + if not self._devices.has_key(device): + return + self._devices[device].set_carrier(False) |