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authorChristian Breunig <christian@breunig.cc>2024-06-26 15:35:10 +0200
committerChristian Breunig <christian@breunig.cc>2024-06-26 15:39:10 +0200
commite47d4fd385631236da6882233b09f6364cbb077b (patch)
tree5a6656a74e720502d97daf91d5055a386a53f71e /python
parente458035e1ab56c7c21e53f26d8a39f00a62e5c9c (diff)
downloadvyos-1x-e47d4fd385631236da6882233b09f6364cbb077b.tar.gz
vyos-1x-e47d4fd385631236da6882233b09f6364cbb077b.zip
interfaces: T6519: harden config migration if ethernet interface is missing
During a corner case where the configuration is migrated to a different system with fewer ethernet interfaces, migration will fail during an image upgrade. vyos.ethtool.Ethtool() is instantiated with an invalid interface leading to an exception that kills the migrator
Diffstat (limited to 'python')
-rw-r--r--python/vyos/ethtool.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/python/vyos/ethtool.py b/python/vyos/ethtool.py
index d45c9c272..80bb56fa2 100644
--- a/python/vyos/ethtool.py
+++ b/python/vyos/ethtool.py
@@ -16,6 +16,7 @@
import re
from json import loads
+from vyos.utils.network import interface_exists
from vyos.utils.process import popen
# These drivers do not support using ethtool to change the speed, duplex, or
@@ -64,6 +65,9 @@ class Ethtool:
def __init__(self, ifname):
# Get driver used for interface
+ if not interface_exists(ifname):
+ raise ValueError(f'Interface "{ifname}" does not exist!')
+
out, _ = popen(f'ethtool --driver {ifname}')
driver = re.search(r'driver:\s(\w+)', out)
if driver: