diff options
Diffstat (limited to 'python/vyos/ifconfig')
| -rw-r--r-- | python/vyos/ifconfig/vtun.py | 44 |
1 files changed, 37 insertions, 7 deletions
diff --git a/python/vyos/ifconfig/vtun.py b/python/vyos/ifconfig/vtun.py index b25e32d63..99a592b3e 100644 --- a/python/vyos/ifconfig/vtun.py +++ b/python/vyos/ifconfig/vtun.py @@ -19,6 +19,7 @@ from vyos.ifconfig.interface import Interface class VTunIf(Interface): default = { 'type': 'vtun', + 'device_type': 'tun', } definition = { **Interface.definition, @@ -28,15 +29,44 @@ class VTunIf(Interface): 'bridgeable': True, }, } - - # stub this interface is created in the configure script + options = Interface.options + ['device_type'] def _create(self): - # we can not create this interface as it is managed outside - # it requires configuring OpenVPN + """ Depending on OpenVPN operation mode the interface is created + immediately (e.g. Server mode) or once the connection to the server is + established (client mode). The latter will only be brought up once the + server can be reached, thus we might need to create this interface in + advance for the service to be operational. """ + try: + cmd = 'openvpn --mktun --dev-type {device_type} --dev {ifname}'.format(**self.config) + return self._cmd(cmd) + except PermissionError: + # interface created by OpenVPN daemon in the meantime ... + pass + + def add_addr(self, addr): + # IP addresses are managed by OpenVPN daemon pass - def _delete(self): - # we can not create this interface as it is managed outside - # it requires configuring OpenVPN + def del_addr(self, addr): + # IP addresses are managed by OpenVPN daemon pass + + def update(self, config): + """ General helper function which works on a dictionary retrived by + get_config_dict(). It's main intention is to consolidate the scattered + interface setup code and provide a single point of entry when workin + on any interface. """ + + # call base class first + super().update(config) + + # Enable/Disable of an interface must always be done at the end of the + # derived class to make use of the ref-counting set_admin_state() + # function. We will only enable the interface if 'up' was called as + # often as 'down'. This is required by some interface implementations + # as certain parameters can only be changed when the interface is + # in admin-down state. This ensures the link does not flap during + # reconfiguration. + state = 'down' if 'disable' in config else 'up' + self.set_admin_state(state) |