diff options
| -rw-r--r-- | interface-definitions/include/constraint/interface-name.xml.i | 2 | ||||
| -rw-r--r-- | python/vyos/configverify.py | 19 | ||||
| -rwxr-xr-x | smoketest/scripts/cli/test_interfaces_tunnel.py | 16 | ||||
| -rwxr-xr-x | src/conf_mode/interfaces_tunnel.py | 4 |
4 files changed, 31 insertions, 10 deletions
diff --git a/interface-definitions/include/constraint/interface-name.xml.i b/interface-definitions/include/constraint/interface-name.xml.i index 1b14eabf5..3e7c4e667 100644 --- a/interface-definitions/include/constraint/interface-name.xml.i +++ b/interface-definitions/include/constraint/interface-name.xml.i @@ -1,4 +1,4 @@ <!-- include start from constraint/interface-name.xml.i --> -<regex>(bond|br|dum|en|ersp|eth|gnv|ifb|lan|l2tp|l2tpeth|macsec|peth|ppp|pppoe|pptp|sstp|tun|veth|vti|vtun|vxlan|wg|wlan|wwan)[0-9]+(.\d+)?|lo</regex> +<regex>(bond|br|dum|en|ersp|eth|gnv|ifb|ipoe|lan|l2tp|l2tpeth|macsec|peth|ppp|pppoe|pptp|sstp|sstpc|tun|veth|vti|vtun|vxlan|wg|wlan|wwan)[0-9]+(.\d+)?|lo</regex> <validator name="file-path --lookup-path /sys/class/net --directory"/> <!-- include end --> diff --git a/python/vyos/configverify.py b/python/vyos/configverify.py index 27055c863..85423142d 100644 --- a/python/vyos/configverify.py +++ b/python/vyos/configverify.py @@ -281,16 +281,22 @@ def verify_source_interface(config): perform recurring validation of the existence of a source-interface required by e.g. peth/MACvlan, MACsec ... """ + import re from netifaces import interfaces - if 'source_interface' not in config: - raise ConfigError('Physical source-interface required for ' - 'interface "{ifname}"'.format(**config)) - if config['source_interface'] not in interfaces(): - raise ConfigError('Specified source-interface {source_interface} does ' - 'not exist'.format(**config)) + ifname = config['ifname'] + if 'source_interface' not in config: + raise ConfigError(f'Physical source-interface required for "{ifname}"!') src_ifname = config['source_interface'] + # We do not allow sourcing other interfaces (e.g. tunnel) from dynamic interfaces + tmp = re.compile(r'(ppp|pppoe|sstpc|l2tp|ipoe)[0-9]+') + if tmp.match(src_ifname): + raise ConfigError(f'Can not source "{ifname}" from dynamic interface "{src_ifname}"!') + + if src_ifname not in interfaces(): + raise ConfigError(f'Specified source-interface {src_ifname} does not exist') + if 'source_interface_is_bridge_member' in config: bridge_name = next(iter(config['source_interface_is_bridge_member'])) raise ConfigError(f'Invalid source-interface "{src_ifname}". Interface ' @@ -303,7 +309,6 @@ def verify_source_interface(config): if 'is_source_interface' in config: tmp = config['is_source_interface'] - src_ifname = config['source_interface'] raise ConfigError(f'Can not use source-interface "{src_ifname}", it already ' \ f'belongs to interface "{tmp}"!') diff --git a/smoketest/scripts/cli/test_interfaces_tunnel.py b/smoketest/scripts/cli/test_interfaces_tunnel.py index 2a7a519fd..dd9f1d2d1 100755 --- a/smoketest/scripts/cli/test_interfaces_tunnel.py +++ b/smoketest/scripts/cli/test_interfaces_tunnel.py @@ -393,5 +393,21 @@ class TunnelInterfaceTest(BasicInterfaceTest.TestCase): self.assertEqual(tunnel_config['encapsulation'], conf['linkinfo']['info_kind']) self.assertEqual(tunnel_config['remote'], conf['linkinfo']['info_data']['remote']) + def test_tunnel_invalid_source_interface(self): + encapsulation = 'gre' + remote = '192.0.2.1' + interface = 'tun7543' + + self.cli_set(self._base_path + [interface, 'encapsulation', encapsulation]) + self.cli_set(self._base_path + [interface, 'remote', remote]) + + for dynamic_interface in ['l2tp0', 'ppp4220', 'sstpc0', 'ipoe654']: + self.cli_set(self._base_path + [interface, 'source-interface', dynamic_interface]) + # verify() - we can not source from dynamic interfaces + with self.assertRaises(ConfigSessionError): + self.cli_commit() + self.cli_set(self._base_path + [interface, 'source-interface', 'eth0']) + self.cli_commit() + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/conf_mode/interfaces_tunnel.py b/src/conf_mode/interfaces_tunnel.py index 91aed9cc3..efa5ebc64 100755 --- a/src/conf_mode/interfaces_tunnel.py +++ b/src/conf_mode/interfaces_tunnel.py @@ -24,7 +24,7 @@ from vyos.configdict import get_interface_dict from vyos.configdict import is_node_changed from vyos.configverify import verify_address from vyos.configverify import verify_bridge_delete -from vyos.configverify import verify_interface_exists +from vyos.configverify import verify_source_interface from vyos.configverify import verify_mtu_ipv6 from vyos.configverify import verify_mirror_redirect from vyos.configverify import verify_vrf @@ -166,7 +166,7 @@ def verify(tunnel): verify_mirror_redirect(tunnel) if 'source_interface' in tunnel: - verify_interface_exists(tunnel['source_interface']) + verify_source_interface(tunnel) # TTL != 0 and nopmtudisc are incompatible, parameters and ip use default # values, thus the keys are always present. |