diff options
Diffstat (limited to 'src/migration-scripts')
| -rwxr-xr-x | src/migration-scripts/policy/3-to-4 | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/migration-scripts/policy/3-to-4 b/src/migration-scripts/policy/3-to-4 new file mode 100755 index 000000000..bae30cffc --- /dev/null +++ b/src/migration-scripts/policy/3-to-4 @@ -0,0 +1,162 @@ +#!/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/>. + +# T4660: change cli +# from: set policy route-map FOO rule 10 set community 'TEXT' +# Multiple value +# to: set policy route-map FOO rule 10 set community replace <community> +# Multiple value +# to: set policy route-map FOO rule 10 set community add <community> +# to: set policy route-map FOO rule 10 set community none +# +# from: set policy route-map FOO rule 10 set large-community 'TEXT' +# Multiple value +# to: set policy route-map FOO rule 10 set large-community replace <community> +# Multiple value +# to: set policy route-map FOO rule 10 set large-community add <community> +# to: set policy route-map FOO rule 10 set large-community none +# +# from: set policy route-map FOO rule 10 set extecommunity [rt|soo] 'TEXT' +# Multiple value +# to: set policy route-map FOO rule 10 set extcommunity [rt|soo] <community> + +from sys import argv +from sys import exit + +from vyos.configtree import ConfigTree + + +# Migration function for large and regular communities +def community_migrate(config: ConfigTree, rule: list[str]) -> bool: + """ + + :param config: configuration object + :type config: ConfigTree + :param rule: Path to variable + :type rule: list[str] + :return: True if additive presents in community string + :rtype: bool + """ + community_list = list((config.return_value(rule)).split(" ")) + config.delete(rule) + if 'none' in community_list: + config.set(rule + ['none']) + return False + else: + community_action: str = 'replace' + if 'additive' in community_list: + community_action = 'add' + community_list.remove('additive') + for community in community_list: + config.set(rule + [community_action], value=community, + replace=False) + if community_action == 'replace': + return False + else: + return True + + +# Migration function for extcommunities +def extcommunity_migrate(config: ConfigTree, rule: list[str]) -> None: + """ + + :param config: configuration object + :type config: ConfigTree + :param rule: Path to variable + :type rule: list[str] + """ + # if config.exists(rule + ['bandwidth']): + # bandwidth: str = config.return_value(rule + ['bandwidth']) + # config.delete(rule + ['bandwidth']) + # config.set(rule + ['bandwidth'], value=bandwidth) + + if config.exists(rule + ['rt']): + community_list = list((config.return_value(rule + ['rt'])).split(" ")) + config.delete(rule + ['rt']) + for community in community_list: + config.set(rule + ['rt'], value=community, replace=False) + + if config.exists(rule + ['soo']): + community_list = list((config.return_value(rule + ['soo'])).split(" ")) + config.delete(rule + ['soo']) + for community in community_list: + config.set(rule + ['soo'], value=community, replace=False) + + +if (len(argv) < 1): + print("Must specify file name!") + exit(1) + +file_name: str = argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base: list[str] = ['policy', 'route-map'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + exit(0) + +for route_map in config.list_nodes(base): + if not config.exists(base + [route_map, 'rule']): + continue + for rule in config.list_nodes(base + [route_map, 'rule']): + base_rule: list[str] = base + [route_map, 'rule', rule, 'set'] + + # IF additive presents in coummunity then comm-list is redundant + isAdditive: bool = True + #### Change Set community ######## + if config.exists(base_rule + ['community']): + isAdditive = community_migrate(config, + base_rule + ['community']) + + #### Change Set community-list delete migrate ######## + if config.exists(base_rule + ['comm-list', 'comm-list']): + if isAdditive: + tmp = config.return_value( + base_rule + ['comm-list', 'comm-list']) + config.delete(base_rule + ['comm-list']) + config.set(base_rule + ['community', 'delete'], value=tmp) + else: + config.delete(base_rule + ['comm-list']) + + isAdditive = False + #### Change Set large-community ######## + if config.exists(base_rule + ['large-community']): + isAdditive = community_migrate(config, + base_rule + ['large-community']) + + #### Change Set large-community delete by List ######## + if config.exists(base_rule + ['large-comm-list-delete']): + if isAdditive: + tmp = config.return_value( + base_rule + ['large-comm-list-delete']) + config.delete(base_rule + ['large-comm-list-delete']) + config.set(base_rule + ['large-community', 'delete'], + value=tmp) + else: + config.delete(base_rule + ['large-comm-list-delete']) + + #### Change Set extcommunity ######## + extcommunity_migrate(config, base_rule + ['extcommunity']) +try: + with open(file_name, 'w') as f: + f.write(config.to_string()) +except OSError as e: + print(f'Failed to save the modified config: {e}') + exit(1) |