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#!/usr/bin/env python3
#
# Copyright (C) 2022 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/>.
from sys import argv,exit
from vyos.configtree import ConfigTree
if (len(argv) < 1):
print("Must specify file name!")
exit(1)
file_name = argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
base = ['traffic-policy']
config = ConfigTree(config_file)
if not config.exists(base):
# Nothing to do
exit(0)
iface_config = {}
if config.exists(['interfaces']):
def get_qos(config, interface, interface_base):
if config.exists(interface_base):
tmp = { interface : {} }
if config.exists(interface_base + ['in']):
tmp[interface]['ingress'] = config.return_value(interface_base + ['in'])
if config.exists(interface_base + ['out']):
tmp[interface]['egress'] = config.return_value(interface_base + ['out'])
config.delete(interface_base)
return tmp
return None
# Migrate "interface ethernet eth0 traffic-policy in|out" to "qos interface eth0 ingress|egress"
for type in config.list_nodes(['interfaces']):
for interface in config.list_nodes(['interfaces', type]):
interface_base = ['interfaces', type, interface, 'traffic-policy']
tmp = get_qos(config, interface, interface_base)
if tmp: iface_config.append(tmp)
vif_path = ['interfaces', type, interface, 'vif']
if config.exists(vif_path):
for vif in config.list_nodes(vif_path):
vif_interface_base = vif_path + [vif, 'traffic-policy']
ifname = f'{interface}.{vif}'
tmp = get_qos(config, ifname, vif_interface_base)
if tmp: iface_config.update(tmp)
vif_s_path = ['interfaces', type, interface, 'vif-s']
if config.exists(vif_s_path):
for vif_s in config.list_nodes(vif_s_path):
vif_s_interface_base = vif_s_path + [vif_s, 'traffic-policy']
ifname = f'{interface}.{vif_s}'
tmp = get_qos(config, ifname, vif_s_interface_base)
if tmp: iface_config.update(tmp)
# vif-c interfaces MUST be migrated before their parent vif-s
# interface as the migrate_*() functions delete the path!
vif_c_path = ['interfaces', type, interface, 'vif-s', vif_s, 'vif-c']
if config.exists(vif_c_path):
for vif_c in config.list_nodes(vif_c_path):
vif_c_interface_base = vif_c_path + [vif_c, 'traffic-policy']
ifname = f'{interface}.{vif_s}.{vif_c}'
tmp = get_qos(config, ifname, vif_s_interface_base)
if tmp: iface_config.update(tmp)
# Now we have the information which interface uses which QoS policy.
# Interface binding will be moved to the qos CLi tree
config.set(['qos'])
config.copy(base, ['qos', 'policy'])
config.delete(base)
# TODO
# - remove burst from network emulator
# - convert rates to bits/s
# Now map the interface policy binding to the new CLI syntax
for interface, interface_config in iface_config.items():
if 'ingress' in interface_config:
config.set(['qos', 'interface', interface, 'ingress'], value=interface_config['ingress'])
if 'egress' in interface_config:
config.set(['qos', 'interface', interface, 'egress'], value=interface_config['egress'])
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
exit(1)
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