diff options
| -rw-r--r-- | python/vyos/ethtool.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py index 25a116d09..8add1a327 100644 --- a/python/vyos/ethtool.py +++ b/python/vyos/ethtool.py @@ -13,6 +13,7 @@ # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. +import re from vyos.util import popen class Ethtool: @@ -32,9 +33,37 @@ class Ethtool: # 'tx-esp-segmentation': {'fixed': True, 'enabled': False}, # } _features = { } + # dictionary containing available interface speed and duplex settings + # { + # '10' : {'full': '', 'half': ''}, + # '100' : {'full': '', 'half': ''}, + # '1000': {'full': ''} + # } + _speed_duplex = { } _ring_buffers = { } def __init__(self, ifname): + # Build a dictinary of supported link-speed and dupley settings. + out, err = popen(f'ethtool {ifname}') + reading = False + pattern = re.compile(r'\d+base.*') + for line in out.splitlines()[1:]: + line = line.lstrip() + if 'Supported link modes:' in line: + reading = True + if 'Supported pause frame use:' in line: + reading = False + break + if reading: + for block in line.split(): + if pattern.search(block): + speed = block.split('base')[0] + duplex = block.split('/')[-1].lower() + if speed not in self._speed_duplex: + self._speed_duplex.update({ speed : {}}) + if duplex not in self._speed_duplex[speed]: + self._speed_duplex[speed].update({ duplex : ''}) + # Now populate features dictionaty out, err = popen(f'ethtool -k {ifname}') # skip the first line, it only says: "Features for eth0": @@ -108,3 +137,19 @@ class Ethtool: # Configuration of TX ring-buffers is not supported on every device, # thus when it's impossible return None return self._ring_buffers.get('tx', None) + + def check_speed_duplex(self, speed, duplex): + """ Check if the passed speed and duplex combination is supported by + the underlaying network adapter. """ + if isinstance(speed, int): + speed = str(speed) + if not speed.isdigit(): + raise ValueError(f'Value "{speed}" for speed is invalid!') + if duplex not in ['full', 'half']: + raise ValueError(f'Value "{duplex}" for duplex is invalid!') + + if speed in self._speed_duplex: + if duplex in self._speed_duplex[speed]: + return True + return False + |