diff options
Diffstat (limited to 'src/conf_mode')
| -rwxr-xr-x | src/conf_mode/interfaces-bonding.py | 4 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-bridge.py | 1 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-openvpn.py | 13 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-tunnel.py | 82 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces-vxlan.py | 54 |
5 files changed, 98 insertions, 56 deletions
diff --git a/src/conf_mode/interfaces-bonding.py b/src/conf_mode/interfaces-bonding.py index 431d65f1f..d5be21949 100755 --- a/src/conf_mode/interfaces-bonding.py +++ b/src/conf_mode/interfaces-bonding.py @@ -132,10 +132,10 @@ def verify(bond): return None if 'arp_monitor' in bond: - if 'target' in bond['arp_monitor'] and len(int(bond['arp_monitor']['target'])) > 16: + if 'target' in bond['arp_monitor'] and len(bond['arp_monitor']['target']) > 16: raise ConfigError('The maximum number of arp-monitor targets is 16') - if 'interval' in bond['arp_monitor'] and len(int(bond['arp_monitor']['interval'])) > 0: + if 'interval' in bond['arp_monitor'] and int(bond['arp_monitor']['interval']) > 0: if bond['mode'] in ['802.3ad', 'balance-tlb', 'balance-alb']: raise ConfigError('ARP link monitoring does not work for mode 802.3ad, ' \ 'transmit-load-balance or adaptive-load-balance') diff --git a/src/conf_mode/interfaces-bridge.py b/src/conf_mode/interfaces-bridge.py index 4d3ebc587..f4dba9d4a 100755 --- a/src/conf_mode/interfaces-bridge.py +++ b/src/conf_mode/interfaces-bridge.py @@ -22,7 +22,6 @@ from netifaces import interfaces from vyos.config import Config from vyos.configdict import get_interface_dict from vyos.configdict import node_changed -from vyos.configdict import leaf_node_changed from vyos.configdict import is_member from vyos.configdict import is_source_interface from vyos.configdict import has_vlan_subinterface_configured diff --git a/src/conf_mode/interfaces-openvpn.py b/src/conf_mode/interfaces-openvpn.py index ae35ed3c4..d9276c4aa 100755 --- a/src/conf_mode/interfaces-openvpn.py +++ b/src/conf_mode/interfaces-openvpn.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2019-2021 VyOS maintainers and contributors +# Copyright (C) 2019-2022 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 @@ -117,11 +117,12 @@ def verify(openvpn): if 'local_address' not in openvpn and 'is_bridge_member' not in openvpn: raise ConfigError('Must specify "local-address" or add interface to bridge') - if len([addr for addr in openvpn['local_address'] if is_ipv4(addr)]) > 1: - raise ConfigError('Only one IPv4 local-address can be specified') + if 'local_address' in openvpn: + if len([addr for addr in openvpn['local_address'] if is_ipv4(addr)]) > 1: + raise ConfigError('Only one IPv4 local-address can be specified') - if len([addr for addr in openvpn['local_address'] if is_ipv6(addr)]) > 1: - raise ConfigError('Only one IPv6 local-address can be specified') + if len([addr for addr in openvpn['local_address'] if is_ipv6(addr)]) > 1: + raise ConfigError('Only one IPv6 local-address can be specified') if openvpn['device_type'] == 'tun': if 'remote_address' not in openvpn: @@ -160,7 +161,7 @@ def verify(openvpn): if dict_search('remote_host', openvpn) in dict_search('remote_address', openvpn): raise ConfigError('"remote-address" and "remote-host" can not be the same') - if openvpn['device_type'] == 'tap': + if openvpn['device_type'] == 'tap' and 'local_address' in openvpn: # we can only have one local_address, this is ensured above v4addr = None for laddr in openvpn['local_address']: diff --git a/src/conf_mode/interfaces-tunnel.py b/src/conf_mode/interfaces-tunnel.py index ada39a249..c4023586a 100755 --- a/src/conf_mode/interfaces-tunnel.py +++ b/src/conf_mode/interfaces-tunnel.py @@ -18,7 +18,6 @@ import os from sys import exit from netifaces import interfaces -from ipaddress import IPv4Address from vyos.config import Config from vyos.configdict import get_interface_dict @@ -50,8 +49,24 @@ def get_config(config=None): base = ['interfaces', 'tunnel'] tunnel = get_interface_dict(conf, base) - tmp = leaf_node_changed(conf, ['encapsulation']) - if tmp: tunnel.update({'encapsulation_changed': {}}) + if 'deleted' not in tunnel: + tmp = leaf_node_changed(conf, ['encapsulation']) + if tmp: tunnel.update({'encapsulation_changed': {}}) + + # We also need to inspect other configured tunnels as there are Kernel + # restrictions where we need to comply. E.g. GRE tunnel key can't be used + # twice, or with multiple GRE tunnels to the same location we must specify + # a GRE key + conf.set_level(base) + tunnel['other_tunnels'] = conf.get_config_dict([], key_mangling=('-', '_'), + get_first_key=True, + no_tag_node_value_mangle=True) + # delete our own instance from this dict + ifname = tunnel['ifname'] + del tunnel['other_tunnels'][ifname] + # if only one tunnel is present on the system, no need to keep this key + if len(tunnel['other_tunnels']) == 0: + del tunnel['other_tunnels'] # We must check if our interface is configured to be a DMVPN member nhrp_base = ['protocols', 'nhrp', 'tunnel'] @@ -72,48 +87,47 @@ def verify(tunnel): verify_tunnel(tunnel) - # If tunnel source address any and key not set + # If tunnel source is any and gre key is not set + interface = tunnel['ifname'] if tunnel['encapsulation'] in ['gre'] and \ dict_search('source_address', tunnel) == '0.0.0.0' and \ dict_search('parameters.ip.key', tunnel) == None: - raise ConfigError('Tunnel parameters ip key must be set!') + raise ConfigError(f'"parameters ip key" must be set for {interface} when '\ + 'encapsulation is GRE!') - if tunnel['encapsulation'] in ['gre', 'gretap']: + gre_encapsulations = ['gre', 'gretap'] + if tunnel['encapsulation'] in gre_encapsulations and 'other_tunnels' in tunnel: # Check pairs tunnel source-address/encapsulation/key with exists tunnels. # Prevent the same key for 2 tunnels with same source-address/encap. T2920 - for tunnel_if in Section.interfaces('tunnel'): - # It makes no sense to run the test against our own interface we - # are currently configuring - if tunnel['ifname'] == tunnel_if: - continue - - tunnel_cfg = get_interface_config(tunnel_if) + for o_tunnel, o_tunnel_conf in tunnel['other_tunnels'].items(): # no match on encapsulation - bail out - if dict_search('linkinfo.info_kind', tunnel_cfg) != tunnel['encapsulation']: + our_encapsulation = tunnel['encapsulation'] + their_encapsulation = o_tunnel_conf['encapsulation'] + if our_encapsulation in gre_encapsulations and their_encapsulation \ + not in gre_encapsulations: continue - new_source_address = dict_search('source_address', tunnel) - new_source_interface = dict_search('source_interface', tunnel) - if dict_search('parameters.ip.key', tunnel) != None: - # Convert tunnel key to ip key, format "ip -j link show" - # 1 => 0.0.0.1, 999 => 0.0.3.231 - orig_new_key = dict_search('parameters.ip.key', tunnel) - new_key = IPv4Address(int(orig_new_key)) - new_key = str(new_key) - if dict_search('address', tunnel_cfg) == new_source_address and \ - dict_search('linkinfo.info_data.ikey', tunnel_cfg) == new_key: - raise ConfigError(f'Key "{orig_new_key}" for source-address "{new_source_address}" ' \ + our_address = dict_search('source_address', tunnel) + our_key = dict_search('parameters.ip.key', tunnel) + their_address = dict_search('source_address', o_tunnel_conf) + their_key = dict_search('parameters.ip.key', o_tunnel_conf) + if our_key != None: + if their_address == our_address and their_key == our_key: + raise ConfigError(f'Key "{our_key}" for source-address "{our_address}" ' \ f'is already used for tunnel "{tunnel_if}"!') else: - # If no IP GRE key is used we can not have more then one GRE tunnel - # bound to any one interface/IP address. This will result in a OS - # PermissionError: add tunnel "gre0" failed: File exists - if (dict_search('address', tunnel_cfg) == new_source_address or - (dict_search('address', tunnel_cfg) == '0.0.0.0' and - dict_search('link', tunnel_cfg) == new_source_interface)): - raise ConfigError(f'Missing required "ip key" parameter when \ - running more then one GRE based tunnel on the \ - same source-interface/source-address') + our_source_if = dict_search('source_interface', tunnel) + their_source_if = dict_search('source_interface', o_tunnel_conf) + our_remote = dict_search('remote', tunnel) + their_remote = dict_search('remote', o_tunnel_conf) + # If no IP GRE key is defined we can not have more then one GRE tunnel + # bound to any one interface/IP address and the same remote. This will + # result in a OS PermissionError: add tunnel "gre0" failed: File exists + if (their_address == our_address or our_source_if == their_source_if) and \ + our_remote == their_remote: + raise ConfigError(f'Missing required "ip key" parameter when '\ + 'running more then one GRE based tunnel on the '\ + 'same source-interface/source-address') # Keys are not allowed with ipip and sit tunnels if tunnel['encapsulation'] in ['ipip', 'sit']: diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py index c035557f0..5ee4603af 100755 --- a/src/conf_mode/interfaces-vxlan.py +++ b/src/conf_mode/interfaces-vxlan.py @@ -1,6 +1,6 @@ #!/usr/bin/env python3 # -# Copyright (C) 2019-2020 VyOS maintainers and contributors +# Copyright (C) 2019-2022 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 @@ -21,6 +21,7 @@ from netifaces import interfaces from vyos.config import Config from vyos.configdict import get_interface_dict +from vyos.configdict import leaf_node_changed from vyos.configverify import verify_address from vyos.configverify import verify_bridge_delete from vyos.configverify import verify_mtu_ipv6 @@ -34,8 +35,8 @@ airbag.enable() def get_config(config=None): """ - Retrive CLI config as dictionary. Dictionary can never be empty, as at least the - interface name will be added or a deleted flag + Retrive CLI config as dictionary. Dictionary can never be empty, as at least + the interface name will be added or a deleted flag """ if config: conf = config @@ -44,6 +45,16 @@ def get_config(config=None): base = ['interfaces', 'vxlan'] vxlan = get_interface_dict(conf, base) + # VXLAN interfaces are picky and require recreation if certain parameters + # change. But a VXLAN interface should - of course - not be re-created if + # it's description or IP address is adjusted. Feels somehow logic doesn't it? + for cli_option in ['external', 'gpe', 'group', 'port', 'remote', + 'source-address', 'source-interface', 'vni', + 'parameters ip dont-fragment', 'parameters ip tos', + 'parameters ip ttl']: + if leaf_node_changed(conf, cli_option.split()): + vxlan.update({'rebuild_required': {}}) + return vxlan def verify(vxlan): @@ -56,8 +67,7 @@ def verify(vxlan): if 'group' in vxlan: if 'source_interface' not in vxlan: - raise ConfigError('Multicast VXLAN requires an underlaying interface ') - + raise ConfigError('Multicast VXLAN requires an underlaying interface') verify_source_interface(vxlan) if not any(tmp in ['group', 'remote', 'source_address'] for tmp in vxlan): @@ -81,22 +91,41 @@ def verify(vxlan): raise ConfigError(f'Underlaying device MTU is to small ({lower_mtu} '\ f'bytes) for VXLAN overhead ({vxlan_overhead} bytes!)') + # Check for mixed IPv4 and IPv6 addresses + protocol = None + if 'source_address' in vxlan: + if is_ipv6(vxlan['source_address']): + protocol = 'ipv6' + else: + protocol = 'ipv4' + + if 'remote' in vxlan: + error_msg = 'Can not mix both IPv4 and IPv6 for VXLAN underlay' + for remote in vxlan['remote']: + if is_ipv6(remote): + if protocol == 'ipv4': + raise ConfigError(error_msg) + protocol = 'ipv6' + else: + if protocol == 'ipv6': + raise ConfigError(error_msg) + protocol = 'ipv4' + verify_mtu_ipv6(vxlan) verify_address(vxlan) return None - def generate(vxlan): return None - def apply(vxlan): # Check if the VXLAN interface already exists - if vxlan['ifname'] in interfaces(): - v = VXLANIf(vxlan['ifname']) - # VXLAN is super picky and the tunnel always needs to be recreated, - # thus we can simply always delete it first. - v.remove() + if 'rebuild_required' in vxlan or 'delete' in vxlan: + if vxlan['ifname'] in interfaces(): + v = VXLANIf(vxlan['ifname']) + # VXLAN is super picky and the tunnel always needs to be recreated, + # thus we can simply always delete it first. + v.remove() if 'deleted' not in vxlan: # This is a special type of interface which needs additional parameters @@ -116,7 +145,6 @@ def apply(vxlan): return None - if __name__ == '__main__': try: c = get_config() |