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interfaces-ethernet.py
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interfaces-ethernet.py
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#!/usr/bin/env python3
#
# Copyright (C) 2019-2020 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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/>.
import os
from sys import exit
from vyos.config import Config
from vyos.configdict import dict_merge
from vyos.configdict import T2665_default_dict_cleanup
from vyos.configverify import verify_interface_exists
from vyos.configverify import verify_dhcpv6
from vyos.configverify import verify_address
from vyos.configverify import verify_vrf
from vyos.configverify import verify_vlan_config
from vyos.ifconfig import EthernetIf
from vyos.ifconfig_vlan import get_removed_vlans
from vyos.validate import is_member
from vyos.xml import defaults
from vyos import ConfigError
from vyos import airbag
airbag.enable()
def get_config():
""" Retrive CLI config as dictionary. Dictionary can never be empty,
as at least the interface name will be added or a deleted flag """
conf = Config()
# determine tagNode instance
if 'VYOS_TAGNODE_VALUE' not in os.environ:
raise ConfigError('Interface (VYOS_TAGNODE_VALUE) not specified')
# retrieve interface default values
base = ['interfaces', 'ethernet']
default_values = defaults(base)
ifname = os.environ['VYOS_TAGNODE_VALUE']
base = base + [ifname]
# setup config level which is extracted in get_removed_vlans()
conf.set_level(base)
ethernet = conf.get_config_dict([], key_mangling=('-', '_'), get_first_key=True)
# Check if interface has been removed
if ethernet == {}:
ethernet.update({'deleted' : ''})
# We have gathered the dict representation of the CLI, but there are
# default options which we need to update into the dictionary
# retrived.
ethernet = dict_merge(default_values, ethernet)
# Add interface instance name into dictionary
ethernet.update({'ifname': ifname})
# Check if we are a member of a bridge device
bridge = is_member(conf, ifname, 'bridge')
if bridge:
tmp = {'is_bridge_member' : bridge}
ethernet.update(tmp)
# Check if we are a member of a bond device
bond = is_member(conf, ifname, 'bonding')
if bond:
tmp = {'is_bond_member' : bond}
ethernet.update(tmp)
ethernet = T2665_default_dict_cleanup( ethernet )
# Check vif, vif-s/vif-c VLAN interfaces for removal
ethernet = get_removed_vlans( conf, ethernet )
return ethernet
def verify(ethernet):
if 'deleted' in ethernet.keys():
return None
verify_interface_exists(ethernet)
if ethernet.get('speed', None) == 'auto':
if ethernet.get('duplex', None) != 'auto':
raise ConfigError('If speed is hardcoded, duplex must be hardcoded, too')
if ethernet.get('duplex', None) == 'auto':
if ethernet.get('speed', None) != 'auto':
raise ConfigError('If duplex is hardcoded, speed must be hardcoded, too')
verify_dhcpv6(ethernet)
verify_address(ethernet)
verify_vrf(ethernet)
if {'is_bond_member', 'mac'} <= set(ethernet):
print(f'WARNING: changing mac address "{mac}" will be ignored as "{ifname}" '
f'is a member of bond "{is_bond_member}"'.format(**ethernet))
# use common function to verify VLAN configuration
verify_vlan_config(ethernet)
return None
def generate(ethernet):
return None
def apply(ethernet):
e = EthernetIf(ethernet['ifname'])
if 'deleted' in ethernet.keys():
# delete interface
e.remove()
else:
e.update(ethernet)
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)

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