From 48ab6413cedb71934118143a7e095e946ac38bb7 Mon Sep 17 00:00:00 2001 From: Viacheslav Hletenko Date: Sun, 20 Nov 2022 13:35:24 +0000 Subject: T4825: Add interface type veth Add interface type veth (Virtual ethernet) One of the usecases it's interconnect different vrf's and default vrf via bridge set interfaces virtual-ethernet veth0 peer-name 'veth1010' set interfaces virtual-ethernet veth1010 address '10.0.0.10/24' set interfaces virtual-ethernet veth1010 peer-name 'veth0' set interfaces virtual-ethernet veth1010 vrf 'foo' set interfaces bridge br0 address '10.0.0.1/24' set interfaces bridge br0 member interface veth0 --- python/vyos/ifconfig/__init__.py | 1 + python/vyos/ifconfig/veth.py | 54 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) create mode 100644 python/vyos/ifconfig/veth.py (limited to 'python') diff --git a/python/vyos/ifconfig/__init__.py b/python/vyos/ifconfig/__init__.py index a37615c8f..d1ddaa13e 100644 --- a/python/vyos/ifconfig/__init__.py +++ b/python/vyos/ifconfig/__init__.py @@ -36,4 +36,5 @@ from vyos.ifconfig.tunnel import TunnelIf from vyos.ifconfig.wireless import WiFiIf from vyos.ifconfig.l2tpv3 import L2TPv3If from vyos.ifconfig.macsec import MACsecIf +from vyos.ifconfig.veth import VethIf from vyos.ifconfig.wwan import WWANIf diff --git a/python/vyos/ifconfig/veth.py b/python/vyos/ifconfig/veth.py new file mode 100644 index 000000000..aafbf226a --- /dev/null +++ b/python/vyos/ifconfig/veth.py @@ -0,0 +1,54 @@ +# Copyright 2022 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +from vyos.ifconfig.interface import Interface + + +@Interface.register +class VethIf(Interface): + """ + Abstraction of a Linux veth interface + """ + iftype = 'veth' + definition = { + **Interface.definition, + **{ + 'section': 'virtual-ethernet', + 'prefixes': ['veth', ], + 'bridgeable': True, + }, + } + + def _create(self): + """ + Create veth interface in OS kernel. Interface is administrative + down by default. + """ + # check before create, as we have 2 veth interfaces in our CLI + # interface virtual-ethernet veth0 peer-name 'veth1' + # interface virtual-ethernet veth1 peer-name 'veth0' + # + # but iproute2 creates the pair with one command: + # ip link add vet0 type veth peer name veth1 + if self.exists(self.config['peer_name']): + return + + # create virtual-ethernet interface + cmd = 'ip link add {ifname} type {type}'.format(**self.config) + cmd += f' peer name {self.config["peer_name"]}' + self._cmd(cmd) + + # interface is always A/D down. It needs to be enabled explicitly + self.set_admin_state('down') -- cgit v1.2.3