diff options
Diffstat (limited to 'src/op_mode/dhcp.py')
| -rwxr-xr-x | src/op_mode/dhcp.py | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/src/op_mode/dhcp.py b/src/op_mode/dhcp.py index d27e1baf7..f6029c748 100755 --- a/src/op_mode/dhcp.py +++ b/src/op_mode/dhcp.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2022-2023 VyOS maintainers and contributors +# Copyright (C) 2022-2024 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 @@ -33,6 +33,7 @@ from vyos.kea import kea_get_leases from vyos.kea import kea_get_pool_from_subnet_id from vyos.kea import kea_delete_lease from vyos.utils.process import is_systemd_service_running +from vyos.utils.process import call time_string = "%a %b %d %H:%M:%S %Z %Y" @@ -79,14 +80,20 @@ def _get_raw_server_leases(family='inet', pool=None, sorted=None, state=[], orig :return list """ inet_suffix = '6' if family == 'inet6' else '4' - leases = kea_get_leases(inet_suffix) + try: + leases = kea_get_leases(inet_suffix) + except: + raise vyos.opmode.DataUnavailable('Cannot fetch DHCP server lease information') if pool is None: pool = _get_dhcp_pools(family=family) else: pool = [pool] - active_config = kea_get_active_config(inet_suffix) + try: + active_config = kea_get_active_config(inet_suffix) + except: + raise vyos.opmode.DataUnavailable('Cannot fetch DHCP server configuration') data = [] for lease in leases: @@ -309,6 +316,25 @@ def _verify(func): return func(*args, **kwargs) return _wrapper +def _verify_client(func): + """Decorator checks if interface is configured as DHCP client""" + from functools import wraps + from vyos.ifconfig import Section + + @wraps(func) + def _wrapper(*args, **kwargs): + config = ConfigTreeQuery() + family = kwargs.get('family') + v = 'v6' if family == 'inet6' else '' + interface = kwargs.get('interface') + interface_path = Section.get_config_path(interface) + unconf_message = f'DHCP{v} client not configured on interface {interface}!' + + # Check if config does not exist + if not config.exists(f'interfaces {interface_path} address dhcp{v}'): + raise vyos.opmode.UnconfiguredSubsystem(unconf_message) + return func(*args, **kwargs) + return _wrapper @_verify def show_pool_statistics(raw: bool, family: ArgFamily, pool: typing.Optional[str]): @@ -474,6 +500,16 @@ def show_client_leases(raw: bool, family: ArgFamily, interface: typing.Optional[ else: return _get_formatted_client_leases(lease_data, family=family) +@_verify_client +def renew_client_lease(raw: bool, family: ArgFamily, interface: str): + if not raw: + v = 'v6' if family == 'inet6' else '' + print(f'Restarting DHCP{v} client on interface {interface}...') + if family == 'inet6': + call(f'systemctl restart dhcp6c@{interface}.service') + else: + call(f'systemctl restart dhclient@{interface}.service') + if __name__ == '__main__': try: res = vyos.opmode.run(sys.modules[__name__]) |