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Diffstat (limited to 'python/vyos/configverify.py')
| -rw-r--r-- | python/vyos/configverify.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/python/vyos/configverify.py b/python/vyos/configverify.py index afa6c7f06..6e5ba1df0 100644 --- a/python/vyos/configverify.py +++ b/python/vyos/configverify.py @@ -23,6 +23,27 @@ from vyos import ConfigError +def verify_mtu(config): + """ + Common helper function used by interface implementations to perform + recurring validation if the specified MTU can be used by the underlaying + hardware. + """ + from vyos.ifconfig import Interface + if 'mtu' in config: + mtu = int(config['mtu']) + + tmp = Interface(config['ifname']) + min_mtu = tmp.get_min_mtu() + max_mtu = tmp.get_max_mtu() + + if mtu < min_mtu: + raise ConfigError(f'Interface MTU too low, ' \ + f'minimum supported MTU is {min_mtu}!') + if mtu > max_mtu: + raise ConfigError(f'Interface MTU too high, ' \ + f'maximum supported MTU is {max_mtu}!') + def verify_vrf(config): """ Common helper function used by interface implementations to perform |