T6199: replace netifaces.interfaces() with common custom helpers

* Use interface_exists() outside of verify()
* Use verify_interface_exists() in verify() to drop common error message

(cherry picked from commit 4c7c168fe970b807750a05ceb66b70c0d8652535)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/conf_mode/interfaces_openvpn.py b/src/conf_mode/interfaces_openvpn.py
index 45569dd21..402543a33 100755
--- a/src/conf_mode/interfaces_openvpn.py
+++ b/src/conf_mode/interfaces_openvpn.py
@@ -26,7 +26,6 @@ from ipaddress import IPv4Network
 from ipaddress import IPv6Address
 from ipaddress import IPv6Network
 from ipaddress import summarize_address_range
-from netifaces import interfaces
 from secrets import SystemRandom
 from shutil import rmtree
 
@@ -63,6 +62,7 @@ from vyos.utils.process import call
 from vyos.utils.permission import chown
 from vyos.utils.process import cmd
 from vyos.utils.network import is_addr_assigned
+from vyos.utils.network import interface_exists
 
 from vyos import ConfigError
 from vyos import airbag
@@ -683,7 +683,7 @@ def apply(openvpn):
             if os.path.isfile(cleanup_file):
                 os.unlink(cleanup_file)
 
-        if interface in interfaces():
+        if interface_exists(interface):
             VTunIf(interface).remove()
 
     # dynamically load/unload DCO Kernel extension if requested