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#!/usr/bin/env python3
#
# Copyright (C) 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 argparse
from subprocess import check_output
from json import loads
def list_vrfs():
command = 'ip -j -br link show type vrf'
answer = loads(check_output(command.split()).decode())
return [_ for _ in answer if _]
parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group()
group.add_argument("-e", "--extensive", action="store_true",
help="provide detailed vrf informatio")
parser.add_argument('interface', metavar='I', type=str, nargs='?',
help='interface to display')
args = parser.parse_args()
if args.extensive:
print('{:16} {:7} {:17} {}'.format('interface', 'state', 'mac', 'flags'))
print('{:16} {:7} {:17} {}'.format('---------', '-----', '---', '-----'))
for vrf in list_vrfs():
name = vrf['ifname']
if args.interface and name != args.interface:
continue
state = vrf['operstate'].lower()
mac = vrf['address'].lower()
info = ','.join([_.lower() for _ in vrf['flags']])
print(f'{name:16} {state:7} {mac:17} {info}')
else:
print(" ".join([vrf['ifname'] for vrf in list_vrfs()]))
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