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# Copyright VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library 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 library 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 library. If not, see <http://www.gnu.org/licenses/>.
from vyos.configtree import ConfigTree
def migrate_ospf(config, path, interface):
path = path + ['ospf']
if config.exists(path):
new_base = ['protocols', 'ospf', 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(path, new_base + [interface])
config.delete(path)
# if "ip ospf" was the only setting, we can clean out the empty
# ip node afterwards
if len(config.list_nodes(path[:-1])) == 0:
config.delete(path[:-1])
def migrate_ospfv3(config, path, interface):
path = path + ['ospfv3']
if config.exists(path):
new_base = ['protocols', 'ospfv3', 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(path, new_base + [interface])
config.delete(path)
# if "ipv6 ospfv3" was the only setting, we can clean out the empty
# ip node afterwards
if len(config.list_nodes(path[:-1])) == 0:
config.delete(path[:-1])
def migrate_rip(config, path, interface):
path = path + ['rip']
if config.exists(path):
new_base = ['protocols', 'rip', 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(path, new_base + [interface])
config.delete(path)
# if "ip rip" was the only setting, we can clean out the empty
# ip node afterwards
if len(config.list_nodes(path[:-1])) == 0:
config.delete(path[:-1])
def migrate_ripng(config, path, interface):
path = path + ['ripng']
if config.exists(path):
new_base = ['protocols', 'ripng', 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(path, new_base + [interface])
config.delete(path)
# if "ipv6 ripng" was the only setting, we can clean out the empty
# ip node afterwards
if len(config.list_nodes(path[:-1])) == 0:
config.delete(path[:-1])
def migrate(config: ConfigTree) -> None:
#
# Migrate "interface ethernet eth0 ip ospf" to "protocols ospf interface eth0"
#
for type in config.list_nodes(['interfaces']):
for interface in config.list_nodes(['interfaces', type]):
ip_base = ['interfaces', type, interface, 'ip']
ipv6_base = ['interfaces', type, interface, 'ipv6']
migrate_rip(config, ip_base, interface)
migrate_ripng(config, ipv6_base, interface)
migrate_ospf(config, ip_base, interface)
migrate_ospfv3(config, ipv6_base, interface)
vif_path = ['interfaces', type, interface, 'vif']
if config.exists(vif_path):
for vif in config.list_nodes(vif_path):
vif_ip_base = vif_path + [vif, 'ip']
vif_ipv6_base = vif_path + [vif, 'ipv6']
ifname = f'{interface}.{vif}'
migrate_rip(config, vif_ip_base, ifname)
migrate_ripng(config, vif_ipv6_base, ifname)
migrate_ospf(config, vif_ip_base, ifname)
migrate_ospfv3(config, vif_ipv6_base, ifname)
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_ip_base = vif_s_path + [vif_s, 'ip']
vif_s_ipv6_base = vif_s_path + [vif_s, 'ipv6']
# 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_ip_base = vif_c_path + [vif_c, 'ip']
vif_c_ipv6_base = vif_c_path + [vif_c, 'ipv6']
ifname = f'{interface}.{vif_s}.{vif_c}'
migrate_rip(config, vif_c_ip_base, ifname)
migrate_ripng(config, vif_c_ipv6_base, ifname)
migrate_ospf(config, vif_c_ip_base, ifname)
migrate_ospfv3(config, vif_c_ipv6_base, ifname)
ifname = f'{interface}.{vif_s}'
migrate_rip(config, vif_s_ip_base, ifname)
migrate_ripng(config, vif_s_ipv6_base, ifname)
migrate_ospf(config, vif_s_ip_base, ifname)
migrate_ospfv3(config, vif_s_ipv6_base, ifname)

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