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sugar-toolkit-gtk3/src/hardware/nmclient.py

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#
# 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)
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