245 lines
8.4 KiB
Python
245 lines
8.4 KiB
Python
# This is the backend of the UI panel that communicates to sdbus-networkmanager
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# TODO device selection/swtichability
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# Alfredo Monclus (alfrix) 2024
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import logging
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from sdbus_block.networkmanager import (
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NetworkManager,
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NetworkDeviceGeneric,
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NetworkDeviceWireless,
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NetworkConnectionSettings,
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NetworkManagerSettings,
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AccessPoint,
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NetworkManagerConnectionProperties,
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IPv4Config,
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ActiveConnection,
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enums,
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exceptions,
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)
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from sdbus import sd_bus_open_system, set_default_bus
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from gi.repository import GLib
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from uuid import uuid4
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NM_802_11_AP_SEC_NONE = 0
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NM_802_11_AP_SEC_PAIR_WEP40 = 1
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NM_802_11_AP_SEC_PAIR_WEP104 = 2
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NM_802_11_AP_SEC_PAIR_TKIP = 4
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NM_802_11_AP_SEC_PAIR_CCMP = 8
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NM_802_11_AP_SEC_GROUP_WEP40 = 16
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NM_802_11_AP_SEC_GROUP_WEP104 = 32
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NM_802_11_AP_SEC_GROUP_TKIP = 64
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NM_802_11_AP_SEC_GROUP_CCMP = 128
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NM_802_11_AP_SEC_KEY_MGMT_PSK = 256
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NM_802_11_AP_SEC_KEY_MGMT_802_1X = 512
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def get_encryption(flags):
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encryption = ""
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if (flags & NM_802_11_AP_SEC_PAIR_WEP40 or
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flags & NM_802_11_AP_SEC_PAIR_WEP104 or
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flags & NM_802_11_AP_SEC_GROUP_WEP40 or
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flags & NM_802_11_AP_SEC_GROUP_WEP104):
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encryption += "WEP "
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if (flags & NM_802_11_AP_SEC_PAIR_TKIP or
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flags & NM_802_11_AP_SEC_GROUP_TKIP):
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encryption += "TKIP "
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if (flags & NM_802_11_AP_SEC_PAIR_CCMP or
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flags & NM_802_11_AP_SEC_GROUP_CCMP):
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encryption += "AES "
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if flags & NM_802_11_AP_SEC_KEY_MGMT_PSK:
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encryption += "WPA-PSK "
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if flags & NM_802_11_AP_SEC_KEY_MGMT_802_1X:
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encryption += "802.1x "
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if not encryption:
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encryption += "Open"
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return encryption
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def WifiChannels(freq: str):
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if freq == '2484':
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return "2.4", "14"
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try:
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freq = float(freq)
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except ValueError:
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return "?", "?"
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if 2412 <= freq <= 2472:
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return "2.4", str(int((freq - 2407) / 5))
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elif 3657.5 <= freq <= 3692.5:
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return "3", str(int((freq - 3000) / 5))
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elif 4915 <= freq <= 4980:
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return "5", str(int((freq - 4000) / 5))
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elif 5035 <= freq <= 5885:
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return "5", str(int((freq - 5000) / 5))
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elif 6455 <= freq <= 7115:
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return "6", str(int((freq - 5950) / 5))
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else:
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return "?", "?"
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class SdbusNm:
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def __init__(self):
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self.system_bus = sd_bus_open_system() # We need system bus
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if self.system_bus is None:
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return None
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set_default_bus(self.system_bus)
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self.nm = NetworkManager()
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if self.get_wireless_interfaces():
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self.wlan_device = self.get_wireless_interfaces()[0]
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self.wifi = True
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else:
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self.wlan_device = None
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self.wifi = False
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def is_wifi_enabled(self):
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return self.nm.wireless_enabled
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def get_interfaces(self):
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return [NetworkDeviceGeneric(device).interface for device in self.nm.get_devices()]
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def get_wireless_interfaces(self):
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devices = {path: NetworkDeviceGeneric(path) for path in self.nm.get_devices()}
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return [
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NetworkDeviceWireless(path)
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for path, device in devices.items()
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if device.device_type == enums.DeviceType.WIFI
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]
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def get_primary_interface(self):
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if self.nm.primary_connection == '/':
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# Nothing connected
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if self.wlan_device:
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return self.wlan_device.interface
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if len(self.get_interfaces()) > 1:
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# skips the loopback device
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return self.get_interfaces()[1]
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return None
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gateway = ActiveConnection(self.nm.primary_connection).devices[0]
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return NetworkDeviceGeneric(gateway).interface
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@staticmethod
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def get_known_networks():
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known_networks = []
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saved_network_paths = NetworkManagerSettings().list_connections()
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for netpath in saved_network_paths:
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saved_con = NetworkConnectionSettings(netpath)
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con_settings = saved_con.get_settings()
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# 'type': ('s', '802-11-wireless')
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if con_settings['connection']['type'][1] == "802-11-wireless":
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known_networks.append({
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'SSID': con_settings['802-11-wireless']['ssid'][1].decode(),
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'UUID': con_settings['connection']['uuid'][1]
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})
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return known_networks
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def is_known(self, ssid):
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return any(net['SSID'] == ssid for net in self.get_known_networks())
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def is_open(self, ssid):
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for network in self.get_networks():
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if network["SSID"] == ssid:
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return network["security"] == "Open"
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def get_ip_address(self):
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active_connection_path = self.nm.primary_connection
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if not active_connection_path or active_connection_path == '/':
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return "?"
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active_connection = ActiveConnection(active_connection_path)
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ip_info = IPv4Config(active_connection.ip4_config)
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return ip_info.address_data[0]['address'][1]
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def get_networks(self):
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networks = []
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if self.wlan_device:
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all_aps = [AccessPoint(result) for result in self.wlan_device.access_points]
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networks.extend(
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{
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"SSID": ap.ssid.decode("utf-8"),
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"known": self.is_known(ap.ssid.decode("utf-8")),
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"security": get_encryption(ap.rsn_flags),
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"frequency": WifiChannels(ap.frequency)[0],
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"channel": WifiChannels(ap.frequency)[1],
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"signal_level": ap.strength,
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"max_bitrate": ap.max_bitrate,
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"BSSID": ap.hw_address,
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}
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for ap in all_aps
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if ap.ssid
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)
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return sorted(networks, key=lambda i: i['signal_level'], reverse=True)
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return networks
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def get_bssid_from_ssid(self, ssid):
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return next(net['BSSID'] for net in self.get_networks() if ssid == net['SSID'])
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def get_connected_ap(self):
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if self.wlan_device.active_access_point == "/":
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return None
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return AccessPoint(self.wlan_device.active_access_point)
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def get_connected_bssid(self):
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return self.get_connected_ap().hw_address if self.get_connected_ap() is not None else None
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def add_network(self, ssid, psk):
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if existing_network := NetworkManagerSettings().get_connections_by_id(ssid):
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for network in existing_network:
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self.delete_connection_path(network)
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properties: NetworkManagerConnectionProperties = {
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"connection": {
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"id": ("s", ssid),
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"uuid": ("s", str(uuid4())),
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"type": ("s", "802-11-wireless"),
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"interface-name": ("s", self.wlan_device.interface)
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},
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"802-11-wireless": {
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"mode": ("s", "infrastructure"),
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"security": ("s", "802-11-wireless-security"),
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"ssid": ("ay", ssid.encode("utf-8")),
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},
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"802-11-wireless-security": {
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"key-mgmt": ("s", "wpa-psk"),
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"auth-alg": ("s", "open"),
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"psk": ("s", psk),
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},
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"ipv4": {"method": ("s", "auto")},
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"ipv6": {"method": ("s", "auto")},
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}
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try:
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NetworkManagerSettings().add_connection(properties)
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return {"status": "success"}
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except exceptions.NmConnectionInvalidPropertyError:
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logging.exception("Invalid property")
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return {"error": "psk_invalid", "message": _("Invalid password")}
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except Exception as e:
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logging.exception("Couldn't add network")
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return {"error": "unknown", "message": _("Couldn't add network") + f"\n{e}"}
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def disconnect_network(self):
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self.wlan_device.disconnect()
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def delete_network(self, ssid):
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connection = NetworkManagerSettings().get_connections_by_id(ssid)
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for path in connection:
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self.delete_connection_path(path)
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@staticmethod
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def delete_connection_path(path):
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NetworkConnectionSettings(path).delete()
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def rescan(self):
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return self.wlan_device.request_scan({})
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def connect(self, ssid):
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connection = NetworkManagerSettings().get_connections_by_id(ssid)
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if connection:
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self.nm.activate_connection(connection[0])
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return connection
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def toggle_wifi(self, enable):
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self.nm.wireless_enabled = enable
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