From c7e4d1d2e9207d41096e34f9ea345d9e2d9a9d8f Mon Sep 17 00:00:00 2001
From: DmitriyEshenko <dmitriy.eshenko@vyos.io>
Date: Tue, 3 Mar 2020 15:40:48 +0000
Subject: ifconfig: T2074: add check for sysfs files
---
python/vyos/ifconfig.py | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
(limited to 'python')
diff --git a/python/vyos/ifconfig.py b/python/vyos/ifconfig.py
index b1f9baabe..d5b511f82 100644
--- a/python/vyos/ifconfig.py
+++ b/python/vyos/ifconfig.py
@@ -407,11 +407,12 @@ class Interface:
>>> from vyos.ifconfig import Interface
>>> Interface('eth0').set_link_detect(1)
"""
- if int(link_filter) >= 0 and int(link_filter) <= 2:
- return self._write_sysfs('/proc/sys/net/ipv4/conf/{0}/link_filter'
- .format(self.config['ifname']), link_filter)
- else:
- raise ValueError("Value out of range")
+ sysfs_file = '/proc/sys/net/ipv4/conf/{0}/link_filter'.format(self.config['ifname'])
+ if os.path.exists(sysfs_file):
+ if int(link_filter) >= 0 and int(link_filter) <= 2:
+ return self._write_sysfs(sysfs_file, link_filter)
+ else:
+ raise ValueError("Value out of range")
def set_alias(self, ifalias=None):
"""
@@ -1218,8 +1219,12 @@ class EthernetIf(VLANIf):
>>> i.get_driver_name()
'vmxnet3'
"""
- link = os.readlink('/sys/class/net/{}/device/driver/module'.format(self.config['ifname']))
- return os.path.basename(link)
+ sysfs_file = '/sys/class/net/{}/device/driver/module'.format(self.config['ifname'])
+ if os.path.exists(sysfs_file):
+ link = os.readlink(sysfs_file)
+ return os.path.basename(link)
+ else:
+ return None
def set_flow_control(self, enable):
"""
--
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