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Edit File : fw_nm.py \| Size : 7.02 KB
# -- coding: utf-8 -- # # Copyright (C) 2010-2016 Red Hat, Inc. # # Authors: # Thomas Woerner <twoerner@redhat.com> # # 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, see <http://www.gnu.org/licenses/>. # """Functions for NetworkManager interaction""" __all__ = [ "check_nm_imported", "nm_is_imported", "nm_get_zone_of_connection", "nm_set_zone_of_connection", "nm_get_connections", "nm_get_connection_of_interface", "nm_get_bus_name", "nm_get_dbus_interface" ] import gi from gi.repository import GLib try: gi.require_version('NM', '1.0') except ValueError: _nm_imported = False else: try: from gi.repository import NM _nm_imported = True except (ImportError, ValueError, GLib.Error): _nm_imported = False _nm_client = None from firewall import errors from firewall.errors import FirewallError from firewall.core.logger import log import dbus def check_nm_imported(): """Check function to raise a MISSING_IMPORT error if the import of NM failed """ if not _nm_imported: raise FirewallError(errors.MISSING_IMPORT, "gi.repository.NM = 1.0") def nm_is_imported(): """Returns true if NM has been properly imported @return True if import was successful, False otherwirse """ return _nm_imported def nm_get_client(): """Returns the NM client object or None if the import of NM failed @return NM.Client instance if import was successful, None otherwise """ global _nm_client if not _nm_client: _nm_client = NM.Client.new(None) return _nm_client def nm_get_zone_of_connection(connection): """Get zone of connection from NM @param connection name @return zone string setting of connection, empty string if not set, None if connection is unknown """ check_nm_imported() con = nm_get_client().get_connection_by_uuid(connection) if con is None: return None setting_con = con.get_setting_connection() if setting_con is None: return None try: if con.get_flags() & (NM.SettingsConnectionFlags.NM_GENERATED \| NM.SettingsConnectionFlags.NM_VOLATILE): return "" except AttributeError: # Prior to NetworkManager 1.12, we can only guess # that a connection was generated/volatile. if con.get_unsaved(): return "" zone = setting_con.get_zone() if zone is None: zone = "" return zone def nm_set_zone_of_connection(zone, connection): """Set the zone for a connection @param zone name @param connection name @return True if zone was set, else False """ check_nm_imported() con = nm_get_client().get_connection_by_uuid(connection) if con is None: return False setting_con = con.get_setting_connection() if setting_con is None: return False if zone == "": zone = None setting_con.set_property("zone", zone) return con.commit_changes(True, None) def nm_get_connections(connections, connections_name): """Get active connections from NM @param connections return dict @param connections_name return dict """ connections.clear() connections_name.clear() check_nm_imported() active_connections = nm_get_client().get_active_connections() for active_con in active_connections: # ignore vpn devices for now if active_con.get_vpn(): continue name = active_con.get_id() uuid = active_con.get_uuid() devices = active_con.get_devices() connections_name[uuid] = name for dev in devices: ip_iface = dev.get_ip_iface() if ip_iface: connections[ip_iface] = uuid def nm_get_interfaces(): """Get active interfaces from NM @returns list of interface names """ check_nm_imported() active_interfaces = [] for active_con in nm_get_client().get_active_connections(): # ignore vpn devices for now if active_con.get_vpn(): continue try: con = active_con.get_connection() if con.get_flags() & (NM.SettingsConnectionFlags.NM_GENERATED \| NM.SettingsConnectionFlags.NM_VOLATILE): continue except AttributeError: # Prior to NetworkManager 1.12, we can only guess # that a connection was generated/volatile. if con.get_unsaved(): continue for dev in active_con.get_devices(): ip_iface = dev.get_ip_iface() if ip_iface: active_interfaces.append(ip_iface) return active_interfaces def nm_get_interfaces_in_zone(zone): interfaces = [] for interface in nm_get_interfaces(): conn = nm_get_connection_of_interface(interface) if zone == nm_get_zone_of_connection(conn): interfaces.append(interface) return interfaces def nm_get_device_by_ip_iface(interface): """Get device from NM which has the given IP interface @param interface name @returns NM.Device instance or None """ check_nm_imported() for device in nm_get_client().get_devices(): ip_iface = device.get_ip_iface() if ip_iface is None: continue if ip_iface == interface: return device return None def nm_get_connection_of_interface(interface): """Get connection from NM that is using the interface @param interface name @returns connection that is using interface or None """ check_nm_imported() device = nm_get_device_by_ip_iface(interface) if device is None: return None active_con = device.get_active_connection() if active_con is None: return None try: con = active_con.get_connection() if con.get_flags() & NM.SettingsConnectionFlags.NM_GENERATED: return None except AttributeError: # Prior to NetworkManager 1.12, we can only guess # that a connection was generated. if con.get_unsaved(): return None return active_con.get_uuid() def nm_get_bus_name(): if not _nm_imported: return None try: bus = dbus.SystemBus() obj = bus.get_object(NM.DBUS_INTERFACE, NM.DBUS_PATH) name = obj.bus_name del obj, bus return name except Exception: log.debug2("Failed to get bus name of NetworkManager") return None def nm_get_dbus_interface(): if not _nm_imported: return "" return NM.DBUS_INTERFACE Back

Edit File : fw_nm.py | Size : 7.02 KB

# -*- coding: utf-8 -*-
#
# Copyright (C) 2010-2016 Red Hat, Inc.
#
# Authors:
# Thomas Woerner <twoerner@redhat.com>
#
# 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, see <http://www.gnu.org/licenses/>.
#

"""Functions for NetworkManager interaction"""

__all__ = [ "check_nm_imported", "nm_is_imported",
            "nm_get_zone_of_connection", "nm_set_zone_of_connection",
            "nm_get_connections", "nm_get_connection_of_interface",
            "nm_get_bus_name", "nm_get_dbus_interface" ]

import gi
from gi.repository import GLib
try:
    gi.require_version('NM', '1.0')
except ValueError:
    _nm_imported = False
else:
    try:
        from gi.repository import NM
        _nm_imported = True
    except (ImportError, ValueError, GLib.Error):
        _nm_imported = False
_nm_client = None

from firewall import errors
from firewall.errors import FirewallError
from firewall.core.logger import log
import dbus

def check_nm_imported():
    """Check function to raise a MISSING_IMPORT error if the import of NM failed
    """
    if not _nm_imported:
        raise FirewallError(errors.MISSING_IMPORT, "gi.repository.NM = 1.0")

def nm_is_imported():
    """Returns true if NM has been properly imported
    @return True if import was successful, False otherwirse
    """
    return _nm_imported

def nm_get_client():
    """Returns the NM client object or None if the import of NM failed
    @return NM.Client instance if import was successful, None otherwise
    """
    global _nm_client
    if not _nm_client:
        _nm_client = NM.Client.new(None)
    return _nm_client

def nm_get_zone_of_connection(connection):
    """Get zone of connection from NM
    @param connection name
    @return zone string setting of connection, empty string if not set, None if connection is unknown
    """
    check_nm_imported()

con = nm_get_client().get_connection_by_uuid(connection)
    if con is None:
        return None

setting_con = con.get_setting_connection()
    if setting_con is None:
        return None

try:
        if con.get_flags() & (NM.SettingsConnectionFlags.NM_GENERATED
                              | NM.SettingsConnectionFlags.NM_VOLATILE):
            return ""
    except AttributeError:
        # Prior to NetworkManager 1.12, we can only guess
        # that a connection was generated/volatile.
        if con.get_unsaved():
            return ""

zone = setting_con.get_zone()
    if zone is None:
        zone = ""
    return zone

def nm_set_zone_of_connection(zone, connection):
    """Set the zone for a connection
    @param zone name
    @param connection name
    @return True if zone was set, else False
    """
    check_nm_imported()

con = nm_get_client().get_connection_by_uuid(connection)
    if con is None:
        return False

setting_con = con.get_setting_connection()
    if setting_con is None:
        return False

if zone == "":
        zone = None
    setting_con.set_property("zone", zone)
    return con.commit_changes(True, None)

def nm_get_connections(connections, connections_name):
    """Get active connections from NM
    @param connections return dict
    @param connections_name return dict
    """

connections.clear()
    connections_name.clear()

check_nm_imported()

active_connections = nm_get_client().get_active_connections()

for active_con in active_connections:
        # ignore vpn devices for now
        if active_con.get_vpn():
            continue

name = active_con.get_id()
        uuid = active_con.get_uuid()
        devices = active_con.get_devices()

connections_name[uuid] = name
        for dev in devices:
            ip_iface = dev.get_ip_iface()
            if ip_iface:
                connections[ip_iface] = uuid

def nm_get_interfaces():
    """Get active interfaces from NM
    @returns list of interface names
    """

check_nm_imported()

active_interfaces = []

for active_con in nm_get_client().get_active_connections():
        # ignore vpn devices for now
        if active_con.get_vpn():
            continue

try:
            con = active_con.get_connection()
            if con.get_flags() & (NM.SettingsConnectionFlags.NM_GENERATED
                                  | NM.SettingsConnectionFlags.NM_VOLATILE):
                continue
        except AttributeError:
            # Prior to NetworkManager 1.12, we can only guess
            # that a connection was generated/volatile.
            if con.get_unsaved():
                continue

for dev in active_con.get_devices():
            ip_iface = dev.get_ip_iface()
            if ip_iface:
                active_interfaces.append(ip_iface)

return active_interfaces

def nm_get_interfaces_in_zone(zone):
    interfaces = []
    for interface in nm_get_interfaces():
        conn = nm_get_connection_of_interface(interface)
        if zone == nm_get_zone_of_connection(conn):
            interfaces.append(interface)

return interfaces

def nm_get_device_by_ip_iface(interface):
    """Get device from NM which has the given IP interface
    @param interface name
    @returns NM.Device instance or None
    """
    check_nm_imported()

for device in nm_get_client().get_devices():
        ip_iface = device.get_ip_iface()
        if ip_iface is None:
            continue
        if ip_iface == interface:
            return device

return None

def nm_get_connection_of_interface(interface):
    """Get connection from NM that is using the interface
    @param interface name
    @returns connection that is using interface or None
    """
    check_nm_imported()

device = nm_get_device_by_ip_iface(interface)
    if device is None:
        return None

active_con = device.get_active_connection()
    if active_con is None:
        return None

try:
        con = active_con.get_connection()
        if con.get_flags() & NM.SettingsConnectionFlags.NM_GENERATED:
            return None
    except AttributeError:
        # Prior to NetworkManager 1.12, we can only guess
        # that a connection was generated.
        if con.get_unsaved():
            return None

return active_con.get_uuid()

def nm_get_bus_name():
    if not _nm_imported:
        return None
    try:
        bus = dbus.SystemBus()
        obj = bus.get_object(NM.DBUS_INTERFACE, NM.DBUS_PATH)
        name = obj.bus_name
        del obj, bus
        return name
    except Exception:
        log.debug2("Failed to get bus name of NetworkManager")
    return None

def nm_get_dbus_interface():
    if not _nm_imported:
        return ""
    return NM.DBUS_INTERFACE

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