From b7d30137b17da49ed5099d4d96659b363fc7bcc9 Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Sat, 21 Aug 2021 20:57:17 +0200 Subject: vyos.ifconfig: provide generic get_mac_synthetic() method WireGuard, Tunnel and also PPPoE all need a ways to calculate a synthetic MAC address used for the EUI64 link-local addresses. Instead of copying the code from Tunnel to WireGuard to PPPoE, use a generic implementation. --- python/vyos/ifconfig/tunnel.py | 28 ++-------------------------- 1 file changed, 2 insertions(+), 26 deletions(-) (limited to 'python/vyos/ifconfig/tunnel.py') diff --git a/python/vyos/ifconfig/tunnel.py b/python/vyos/ifconfig/tunnel.py index 64c735824..5258a2cb1 100644 --- a/python/vyos/ifconfig/tunnel.py +++ b/python/vyos/ifconfig/tunnel.py @@ -16,10 +16,6 @@ # https://developers.redhat.com/blog/2019/05/17/an-introduction-to-linux-virtual-interfaces-tunnels/ # https://community.hetzner.com/tutorials/linux-setup-gre-tunnel -from netaddr import EUI -from netaddr import mac_unix_expanded -from random import getrandbits - from vyos.ifconfig.interface import Interface from vyos.util import dict_search from vyos.validate import assert_list @@ -163,28 +159,8 @@ class TunnelIf(Interface): self._cmd(cmd.format(**self.config)) def get_mac(self): - """ - Get current interface MAC (Media Access Contrl) address used. - - NOTE: Tunnel interfaces have no "MAC" address by default. The content - of the 'address' file in /sys/class/net/device contains the - local-ip thus we generate a random MAC address instead - - Example: - >>> from vyos.ifconfig import Interface - >>> Interface('eth0').get_mac() - '00:50:ab:cd:ef:00' - """ - # we choose 40 random bytes for the MAC address, this gives - # us e.g. EUI('00-EA-EE-D6-A3-C8') or EUI('00-41-B9-0D-F2-2A') - tmp = EUI(getrandbits(48)).value - # set locally administered bit in MAC address - tmp |= 0xf20000000000 - # convert integer to "real" MAC address representation - mac = EUI(hex(tmp).split('x')[-1]) - # change dialect to use : as delimiter instead of - - mac.dialect = mac_unix_expanded - return str(mac) + """ Get a synthetic MAC address. """ + return self.get_mac_synthetic() def update(self, config): """ General helper function which works on a dictionary retrived by -- cgit v1.2.3