#
# Copyright (c) 2018-2019 Red Hat, Inc.
#
# This file is part of nmstate
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
import socket
from libnmstate.nm import dns as nm_dns
from libnmstate.nm import route as nm_route
from libnmstate.schema import InterfaceIPv4
from libnmstate.schema import Route
from ..ifaces import BaseIface
from .common import NM
INT32_MAX = 2 ** 31 - 1
def create_setting(config, base_con_profile):
setting_ipv4 = None
if base_con_profile and config and config.get(InterfaceIPv4.ENABLED):
setting_ipv4 = base_con_profile.get_setting_ip4_config()
if setting_ipv4:
setting_ipv4 = setting_ipv4.duplicate()
setting_ipv4.clear_addresses()
setting_ipv4.props.ignore_auto_routes = False
setting_ipv4.props.never_default = False
setting_ipv4.props.ignore_auto_dns = False
setting_ipv4.props.gateway = None
setting_ipv4.props.route_table = Route.USE_DEFAULT_ROUTE_TABLE
setting_ipv4.props.route_metric = Route.USE_DEFAULT_METRIC
setting_ipv4.clear_routes()
setting_ipv4.clear_routing_rules()
setting_ipv4.clear_dns()
setting_ipv4.clear_dns_searches()
setting_ipv4.props.dns_priority = nm_dns.DEFAULT_DNS_PRIORITY
if not setting_ipv4:
setting_ipv4 = NM.SettingIP4Config.new()
setting_ipv4.props.dhcp_client_id = "mac"
setting_ipv4.props.method = NM.SETTING_IP4_CONFIG_METHOD_DISABLED
if config and config.get(InterfaceIPv4.ENABLED):
if config.get(InterfaceIPv4.DHCP):
setting_ipv4.props.method = NM.SETTING_IP4_CONFIG_METHOD_AUTO
setting_ipv4.props.ignore_auto_routes = not config.get(
InterfaceIPv4.AUTO_ROUTES, True
)
setting_ipv4.props.never_default = not config.get(
InterfaceIPv4.AUTO_GATEWAY, True
)
setting_ipv4.props.ignore_auto_dns = not config.get(
InterfaceIPv4.AUTO_DNS, True
)
setting_ipv4.props.route_table = config.get(
InterfaceIPv4.AUTO_ROUTE_TABLE_ID,
Route.USE_DEFAULT_ROUTE_TABLE,
)
# NetworkManager will remove the virtual interfaces like bridges
# when the DHCP timeout expired, set it to the maximum value to
# make this unlikely.
setting_ipv4.props.dhcp_timeout = INT32_MAX
elif config.get(InterfaceIPv4.ADDRESS):
setting_ipv4.props.method = NM.SETTING_IP4_CONFIG_METHOD_MANUAL
_add_addresses(setting_ipv4, config[InterfaceIPv4.ADDRESS])
nm_route.add_routes(
setting_ipv4, config.get(BaseIface.ROUTES_METADATA, [])
)
nm_dns.add_dns(setting_ipv4, config.get(BaseIface.DNS_METADATA, {}))
nm_route.add_route_rules(
setting_ipv4,
socket.AF_INET,
config.get(BaseIface.ROUTE_RULES_METADATA, []),
)
return setting_ipv4
def _add_addresses(setting_ipv4, addresses):
for address in addresses:
naddr = NM.IPAddress.new(
socket.AF_INET,
address[InterfaceIPv4.ADDRESS_IP],
address[InterfaceIPv4.ADDRESS_PREFIX_LENGTH],
)
setting_ipv4.add_address(naddr)
def get_info(active_connection, applied_config):
"""
Provide information regarding:
* Enable status
* DHCP status
"""
if active_connection is None or applied_config is None:
# Neither unmanaged or not active, let nispor determine its state
return {}
info = {InterfaceIPv4.ENABLED: False, InterfaceIPv4.DHCP: False}
ip_profile = (
applied_config.get_setting_ip4_config() if applied_config else None
)
if ip_profile:
method = ip_profile.get_method()
if method == NM.SETTING_IP4_CONFIG_METHOD_DISABLED:
info[InterfaceIPv4.ENABLED] = False
else:
info[InterfaceIPv4.ENABLED] = True
if method == NM.SETTING_IP4_CONFIG_METHOD_AUTO:
info[InterfaceIPv4.DHCP] = True
props = ip_profile.props
info[InterfaceIPv4.AUTO_ROUTES] = not props.ignore_auto_routes
info[InterfaceIPv4.AUTO_GATEWAY] = not props.never_default
info[InterfaceIPv4.AUTO_DNS] = not props.ignore_auto_dns
info[InterfaceIPv4.AUTO_ROUTE_TABLE_ID] = props.route_table
return info
def get_ip_profile(active_connection):
"""
Get NMSettingIP4Config from NMActiveConnection.
For any error, return None.
"""
remote_conn = active_connection.get_connection()
if remote_conn:
return remote_conn.get_setting_ip4_config()
return None
def acs_and_ip_profiles(nm_client):
for ac in nm_client.get_active_connections():
ip_profile = get_ip_profile(ac)
if not ip_profile:
continue
yield ac, ip_profile
def is_dynamic(active_connection):
ip_profile = get_ip_profile(active_connection)
if ip_profile:
return ip_profile.get_method() == NM.SETTING_IP4_CONFIG_METHOD_AUTO
return False