diff options
Diffstat (limited to 'src/migration-scripts/dhcpv6-server')
| -rwxr-xr-x | src/migration-scripts/dhcpv6-server/1-to-2 | 86 | ||||
| -rwxr-xr-x | src/migration-scripts/dhcpv6-server/2-to-3 | 78 | ||||
| -rwxr-xr-x | src/migration-scripts/dhcpv6-server/3-to-4 | 90 |
3 files changed, 254 insertions, 0 deletions
diff --git a/src/migration-scripts/dhcpv6-server/1-to-2 b/src/migration-scripts/dhcpv6-server/1-to-2 new file mode 100755 index 000000000..cc5a8900a --- /dev/null +++ b/src/migration-scripts/dhcpv6-server/1-to-2 @@ -0,0 +1,86 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2023 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/>. + +# T3316: Migrate to Kea +# - Kea was meant to have support for key "prefix-highest" under PD which would allow an address range +# However this seems to have never been implemented. A conversion to prefix length is needed (where possible). +# Ref: https://lists.isc.org/pipermail/kea-users/2022-November/003686.html +# - Remove prefix temporary value, convert to multi leafNode (https://kea.readthedocs.io/en/kea-2.2.0/arm/dhcp6-srv.html#dhcpv6-server-limitations) + +import sys +from vyos.configtree import ConfigTree +from vyos.utils.network import ipv6_prefix_length + +if (len(sys.argv) < 1): + print("Must specify file name!") + sys.exit(1) + +file_name = sys.argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['service', 'dhcpv6-server', 'shared-network-name'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + exit(0) + +for network in config.list_nodes(base): + if not config.exists(base + [network, 'subnet']): + continue + + for subnet in config.list_nodes(base + [network, 'subnet']): + # Delete temporary value under address-range prefix, convert tagNode to leafNode multi + if config.exists(base + [network, 'subnet', subnet, 'address-range', 'prefix']): + prefix_base = base + [network, 'subnet', subnet, 'address-range', 'prefix'] + prefixes = config.list_nodes(prefix_base) + + config.delete(prefix_base) + + for prefix in prefixes: + config.set(prefix_base, value=prefix, replace=False) + + if config.exists(base + [network, 'subnet', subnet, 'prefix-delegation', 'prefix']): + prefix_base = base + [network, 'subnet', subnet, 'prefix-delegation', 'prefix'] + + config.set(prefix_base) + config.set_tag(prefix_base) + + for start in config.list_nodes(base + [network, 'subnet', subnet, 'prefix-delegation', 'start']): + path = base + [network, 'subnet', subnet, 'prefix-delegation', 'start', start] + + delegated_length = config.return_value(path + ['prefix-length']) + stop = config.return_value(path + ['stop']) + + prefix_length = ipv6_prefix_length(start, stop) + + # This range could not be converted into a simple prefix length and must be skipped + if not prefix_length: + continue + + config.set(prefix_base + [start, 'delegated-length'], value=delegated_length) + config.set(prefix_base + [start, 'prefix-length'], value=prefix_length) + + config.delete(base + [network, 'subnet', subnet, 'prefix-delegation', 'start']) + +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) diff --git a/src/migration-scripts/dhcpv6-server/2-to-3 b/src/migration-scripts/dhcpv6-server/2-to-3 new file mode 100755 index 000000000..f4bdc1d1e --- /dev/null +++ b/src/migration-scripts/dhcpv6-server/2-to-3 @@ -0,0 +1,78 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2023 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/>. + +# T3316: +# - Adjust hostname to have valid FQDN characters only (underscores aren't allowed anymore) +# - Adjust duid (old identifier) to comply with duid format +# - Rename "service dhcpv6-server shared-network-name ... static-mapping <hostname> identifier ..." +# to "service dhcpv6-server shared-network-name ... static-mapping <hostname> duid ..." +# - Rename "service dhcpv6-server shared-network-name ... static-mapping <hostname> mac-address ..." +# to "service dhcpv6-server shared-network-name ... static-mapping <hostname> mac ..." + +import sys +import re +from vyos.configtree import ConfigTree + +if len(sys.argv) < 2: + print("Must specify file name!") + sys.exit(1) + +file_name = sys.argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['service', 'dhcpv6-server', 'shared-network-name'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + sys.exit(0) + +for network in config.list_nodes(base): + # Run this for every specified 'subnet' + if config.exists(base + [network, 'subnet']): + for subnet in config.list_nodes(base + [network, 'subnet']): + base_subnet = base + [network, 'subnet', subnet] + if config.exists(base_subnet + ['static-mapping']): + for hostname in config.list_nodes(base_subnet + ['static-mapping']): + base_mapping = base_subnet + ['static-mapping', hostname] + if config.exists(base_mapping + ['identifier']): + + # Adjust duid to comply with duid format (a:3:b:04:... => 0a:03:0b:04:...) + duid = config.return_value(base_mapping + ['identifier']) + new_duid = ':'.join(x.rjust(2,'0') for x in duid.split(':')) + if new_duid != duid: + config.set(base_mapping + ['identifier'], new_duid) + + # Rename the 'identifier' node to 'duid' + config.rename(base_mapping + ['identifier'], 'duid') + + # Rename the 'mac-address' node to 'mac' + if config.exists(base_mapping + ['mac-address']): + config.rename(base_mapping + ['mac-address'], 'mac') + + # Adjust hostname to have valid FQDN characters only + new_hostname = re.sub(r'[^a-zA-Z0-9-.]', '-', hostname) + if new_hostname != hostname: + config.rename(base_mapping, new_hostname) + +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) diff --git a/src/migration-scripts/dhcpv6-server/3-to-4 b/src/migration-scripts/dhcpv6-server/3-to-4 new file mode 100755 index 000000000..4747ebd60 --- /dev/null +++ b/src/migration-scripts/dhcpv6-server/3-to-4 @@ -0,0 +1,90 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2024 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/>. + +# T3316: +# - Add subnet IDs to existing subnets +# - Move options to option node +# - Migrate address-range to range tagNode + +import sys +import re +from vyos.configtree import ConfigTree + +if len(sys.argv) < 2: + print("Must specify file name!") + sys.exit(1) + +file_name = sys.argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['service', 'dhcpv6-server', 'shared-network-name'] +config = ConfigTree(config_file) + +if not config.exists(base): + # Nothing to do + sys.exit(0) + +option_nodes = ['captive-portal', 'domain-search', 'name-server', + 'nis-domain', 'nis-server', 'nisplus-domain', 'nisplus-server', + 'sip-server', 'sntp-server', 'vendor-option'] + +subnet_id = 1 + +for network in config.list_nodes(base): + if config.exists(base + [network, 'subnet']): + for subnet in config.list_nodes(base + [network, 'subnet']): + base_subnet = base + [network, 'subnet', subnet] + + if config.exists(base_subnet + ['address-range']): + config.set(base_subnet + ['range']) + config.set_tag(base_subnet + ['range']) + + range_id = 1 + + if config.exists(base_subnet + ['address-range', 'prefix']): + for prefix in config.return_values(base_subnet + ['address-range', 'prefix']): + config.set(base_subnet + ['range', range_id, 'prefix'], value=prefix) + + range_id += 1 + + if config.exists(base_subnet + ['address-range', 'start']): + for start in config.list_nodes(base_subnet + ['address-range', 'start']): + stop = config.return_value(base_subnet + ['address-range', 'start', start, 'stop']) + + config.set(base_subnet + ['range', range_id, 'start'], value=start) + config.set(base_subnet + ['range', range_id, 'stop'], value=stop) + + range_id += 1 + + config.delete(base_subnet + ['address-range']) + + for option in option_nodes: + if config.exists(base_subnet + [option]): + config.set(base_subnet + ['option']) + config.copy(base_subnet + [option], base_subnet + ['option', option]) + config.delete(base_subnet + [option]) + + config.set(base_subnet + ['subnet-id'], value=subnet_id) + subnet_id += 1 + +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) |