#!/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 import jinja2 from subprocess import check_output from json import loads vrf_out_tmpl = """ VRF name state mac address flags interfaces -------- ----- ----------- ----- ---------- {%- for v in vrf %} {{"%-16s"|format(v.ifname)}} {{ "%-8s"|format(v.operstate | lower())}} {{"%-17s"|format(v.address | lower())}} {{ v.flags|join(',')|lower()}} {{v.members|join(',')|lower()}} {%- endfor %} """ def list_vrfs(): command = 'ip -j -br link show type vrf' answer = loads(check_output(command.split()).decode()) return [_ for _ in answer if _] def list_vrf_members(vrf): command = f'ip -j -br link show master {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: data = { 'vrf': [] } for vrf in list_vrfs(): name = vrf['ifname'] if args.interface and name != args.interface: continue vrf['members'] = [] for member in list_vrf_members(name): vrf['members'].append(member['ifname']) data['vrf'].append(vrf) tmpl = jinja2.Template(vrf_out_tmpl) print(tmpl.render(data)) else: print(" ".join([vrf['ifname'] for vrf in list_vrfs()]))