#
# Copyright (c) 2020 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/>.
#
from abc import ABCMeta
from abc import abstractproperty
from abc import abstractmethod
from .error import NmstatePluginError
class NmstatePlugin(metaclass=ABCMeta):
OVS_CAPABILITY = "openvswitch"
TEAM_CAPABILITY = "team"
PLUGIN_CAPABILITY_IFACE = "interface"
PLUGIN_CAPABILITY_ROUTE = "route"
PLUGIN_CAPABILITY_ROUTE_RULE = "route_rule"
PLUGIN_CAPABILITY_DNS = "dns"
DEFAULT_PRIORITY = 10
def unload(self):
pass
@property
def checkpoint(self):
return None
def refresh_content(self):
pass
@abstractproperty
def name(self):
pass
@property
def priority(self):
return NmstatePlugin.DEFAULT_PRIORITY
def get_interfaces(self):
"""
Return a list of dict with network interface running status with
mix of running status and running configure.
"""
raise NmstatePluginError(
f"Plugin {self.name} BUG: get_interfaces() not implemented"
)
def get_running_config_interfaces(self):
"""
Return a list of dict with network interface running configuration.
Notes:
* the IP/DHCP/Route retrieved from DHCP/Autoconf are not running
configuration.
"""
return []
def apply_changes(self, net_state, save_to_disk):
pass
@property
def capabilities(self):
return []
@abstractmethod
def plugin_capabilities(self):
pass
def create_checkpoint(self, timeout):
return None
def rollback_checkpoint(self, checkpoint=None):
pass
def destroy_checkpoint(self, checkpoint=None):
pass
def get_routes(self):
raise NmstatePluginError(
f"Plugin {self.name} BUG: get_routes() not implemented"
)
def get_route_rules(self):
raise NmstatePluginError(
f"Plugin {self.name} BUG: get_route_rules() not implemented"
)
def get_dns_client_config(self):
raise NmstatePluginError(
f"Plugin {self.name} BUG: get_dns_client_config() not implemented"
)
def get_global_state(self):
"""
Allowing plugin to append global information to content of
`libnmstate.show()`.
"""
return {}
@property
def is_supplemental_only(self):
"""
Return True when plugin can only append information to
interfaces reported by other plugin.
Retrun False when plugin can report new interface.
"""
return False
def generate_configurations(self, net_state):
"""
Returning a list of strings for configurations which could be save
persistently.
"""
return []
def get_ignored_kernel_interface_names(self):
"""
Return a list of kernel interface names which should be ignored
during verification stage.
"""
return []