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Diffstat (limited to 'src/migration-scripts/firewall/10-to-11')
| -rw-r--r-- | src/migration-scripts/firewall/10-to-11 | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/migration-scripts/firewall/10-to-11 b/src/migration-scripts/firewall/10-to-11 new file mode 100644 index 0000000..70a1709 --- /dev/null +++ b/src/migration-scripts/firewall/10-to-11 @@ -0,0 +1,187 @@ +# Copyright 2023-2024 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/>. + +# T5160: Firewall re-writing + +# cli changes from: +# set firewall name <name> ... +# set firewall ipv6-name <name> ... +# To +# set firewall ipv4 name <name> +# set firewall ipv6 name <name> + +## Also from 'firewall interface' removed. +## in and out: + # set firewall interface <iface> [in|out] [name | ipv6-name] <name> + # To + # set firewall [ipv4 | ipv6] forward filter rule <5,10,15,...> [inbound-interface | outboubd-interface] interface-name <iface> + # set firewall [ipv4 | ipv6] forward filter rule <5,10,15,...> action jump + # set firewall [ipv4 | ipv6] forward filter rule <5,10,15,...> jump-target <name> +## local: + # set firewall interface <iface> local [name | ipv6-name] <name> + # To + # set firewall [ipv4 | ipv6] input filter rule <5,10,15,...> inbound-interface interface-name <iface> + # set firewall [ipv4 | ipv6] input filter rule <5,10,15,...> action jump + # set firewall [ipv4 | ipv6] input filter rule <5,10,15,...> jump-target <name> + +from vyos.configtree import ConfigTree + +base = ['firewall'] + +def migrate(config: ConfigTree) -> None: + if not config.exists(base): + # Nothing to do + return + + ### Migration of state policies + if config.exists(base + ['state-policy']): + for state in config.list_nodes(base + ['state-policy']): + action = config.return_value(base + ['state-policy', state, 'action']) + config.set(base + ['global-options', 'state-policy', state, 'action'], value=action) + if config.exists(base + ['state-policy', state, 'log']): + config.set(base + ['global-options', 'state-policy', state, 'log'], value='enable') + config.delete(base + ['state-policy']) + + ## migration of global options: + for option in ['all-ping', 'broadcast-ping', 'config-trap', 'ip-src-route', 'ipv6-receive-redirects', 'ipv6-src-route', 'log-martians', + 'receive-redirects', 'resolver-cache', 'resolver-internal', 'send-redirects', 'source-validation', 'syn-cookies', 'twa-hazards-protection']: + if config.exists(base + [option]): + if option != 'config-trap': + val = config.return_value(base + [option]) + config.set(base + ['global-options', option], value=val) + config.delete(base + [option]) + + ### Migration of firewall name and ipv6-name + ### Also migrate legacy 'accept' behaviour + if config.exists(base + ['name']): + config.set(['firewall', 'ipv4', 'name']) + config.set_tag(['firewall', 'ipv4', 'name']) + + for ipv4name in config.list_nodes(base + ['name']): + config.copy(base + ['name', ipv4name], base + ['ipv4', 'name', ipv4name]) + + if config.exists(base + ['ipv4', 'name', ipv4name, 'default-action']): + action = config.return_value(base + ['ipv4', 'name', ipv4name, 'default-action']) + + if action == 'accept': + config.set(base + ['ipv4', 'name', ipv4name, 'default-action'], value='return') + + if config.exists(base + ['ipv4', 'name', ipv4name, 'rule']): + for rule_id in config.list_nodes(base + ['ipv4', 'name', ipv4name, 'rule']): + action = config.return_value(base + ['ipv4', 'name', ipv4name, 'rule', rule_id, 'action']) + + if action == 'accept': + config.set(base + ['ipv4', 'name', ipv4name, 'rule', rule_id, 'action'], value='return') + + config.delete(base + ['name']) + + if config.exists(base + ['ipv6-name']): + config.set(['firewall', 'ipv6', 'name']) + config.set_tag(['firewall', 'ipv6', 'name']) + + for ipv6name in config.list_nodes(base + ['ipv6-name']): + config.copy(base + ['ipv6-name', ipv6name], base + ['ipv6', 'name', ipv6name]) + + if config.exists(base + ['ipv6', 'name', ipv6name, 'default-action']): + action = config.return_value(base + ['ipv6', 'name', ipv6name, 'default-action']) + + if action == 'accept': + config.set(base + ['ipv6', 'name', ipv6name, 'default-action'], value='return') + + if config.exists(base + ['ipv6', 'name', ipv6name, 'rule']): + for rule_id in config.list_nodes(base + ['ipv6', 'name', ipv6name, 'rule']): + action = config.return_value(base + ['ipv6', 'name', ipv6name, 'rule', rule_id, 'action']) + + if action == 'accept': + config.set(base + ['ipv6', 'name', ipv6name, 'rule', rule_id, 'action'], value='return') + + config.delete(base + ['ipv6-name']) + + ### Migration of firewall interface + if config.exists(base + ['interface']): + fwd_ipv4_rule = 5 + inp_ipv4_rule = 5 + fwd_ipv6_rule = 5 + inp_ipv6_rule = 5 + for direction in ['in', 'out', 'local']: + for iface in config.list_nodes(base + ['interface']): + if config.exists(base + ['interface', iface, direction]): + if config.exists(base + ['interface', iface, direction, 'name']): + target = config.return_value(base + ['interface', iface, direction, 'name']) + if direction == 'in': + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv4', 'forward', 'filter', 'default-action'], value='accept') + new_base = base + ['ipv4', 'forward', 'filter', 'rule'] + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [fwd_ipv4_rule, 'inbound-interface', 'interface-name'], value=iface) + config.set(new_base + [fwd_ipv4_rule, 'action'], value='jump') + config.set(new_base + [fwd_ipv4_rule, 'jump-target'], value=target) + fwd_ipv4_rule = fwd_ipv4_rule + 5 + elif direction == 'out': + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv4', 'forward', 'filter', 'default-action'], value='accept') + new_base = base + ['ipv4', 'forward', 'filter', 'rule'] + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [fwd_ipv4_rule, 'outbound-interface', 'interface-name'], value=iface) + config.set(new_base + [fwd_ipv4_rule, 'action'], value='jump') + config.set(new_base + [fwd_ipv4_rule, 'jump-target'], value=target) + fwd_ipv4_rule = fwd_ipv4_rule + 5 + else: + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv4', 'input', 'filter', 'default-action'], value='accept') + new_base = base + ['ipv4', 'input', 'filter', 'rule'] + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [inp_ipv4_rule, 'inbound-interface', 'interface-name'], value=iface) + config.set(new_base + [inp_ipv4_rule, 'action'], value='jump') + config.set(new_base + [inp_ipv4_rule, 'jump-target'], value=target) + inp_ipv4_rule = inp_ipv4_rule + 5 + + if config.exists(base + ['interface', iface, direction, 'ipv6-name']): + target = config.return_value(base + ['interface', iface, direction, 'ipv6-name']) + if direction == 'in': + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv6', 'forward', 'filter', 'default-action'], value='accept') + new_base = base + ['ipv6', 'forward', 'filter', 'rule'] + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [fwd_ipv6_rule, 'inbound-interface', 'interface-name'], value=iface) + config.set(new_base + [fwd_ipv6_rule, 'action'], value='jump') + config.set(new_base + [fwd_ipv6_rule, 'jump-target'], value=target) + fwd_ipv6_rule = fwd_ipv6_rule + 5 + elif direction == 'out': + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv6', 'forward', 'filter', 'default-action'], value='accept') + new_base = base + ['ipv6', 'forward', 'filter', 'rule'] + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [fwd_ipv6_rule, 'outbound-interface', 'interface-name'], value=iface) + config.set(new_base + [fwd_ipv6_rule, 'action'], value='jump') + config.set(new_base + [fwd_ipv6_rule, 'jump-target'], value=target) + fwd_ipv6_rule = fwd_ipv6_rule + 5 + else: + new_base = base + ['ipv6', 'input', 'filter', 'rule'] + # Add default-action== accept for compatibility reasons: + config.set(base + ['ipv6', 'input', 'filter', 'default-action'], value='accept') + config.set(new_base) + config.set_tag(new_base) + config.set(new_base + [inp_ipv6_rule, 'inbound-interface', 'interface-name'], value=iface) + config.set(new_base + [inp_ipv6_rule, 'action'], value='jump') + config.set(new_base + [inp_ipv6_rule, 'jump-target'], value=target) + inp_ipv6_rule = inp_ipv6_rule + 5 + + config.delete(base + ['interface']) |