vrf: T5973: ensure Kernel module is loaded

This prevents the following error when configuring the first VRF:
sysctl: cannot stat /proc/sys/net/vrf/strict_mode: No such file or directory

(cherry picked from commit a821b8c603999665ce8a77acb0e44a743811992a)

1 files changed, 5 insertions, 1 deletions

diff --git a/src/conf_mode/vrf.py b/src/conf_mode/vrf.py
index 9b1b6355f..aac9b0616 100755
--- a/src/conf_mode/vrf.py
+++ b/src/conf_mode/vrf.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2020-2023 VyOS maintainers and contributors
+# Copyright (C) 2020-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -27,6 +27,7 @@ from vyos.ifconfig import Interface
 from vyos.template import render
 from vyos.template import render_to_string
 from vyos.utils.dict import dict_search
+from vyos.utils.kernel import check_kmod
 from vyos.utils.network import get_interface_config
 from vyos.utils.network import get_vrf_members
 from vyos.utils.network import interface_exists
@@ -43,6 +44,8 @@ airbag.enable()
 config_file = '/etc/iproute2/rt_tables.d/vyos-vrf.conf'
 nft_vrf_config = '/tmp/nftables-vrf-zones'
 
+k_mod = ['vrf']
+
 def has_rule(af : str, priority : int, table : str):
     """ Check if a given ip rule exists """
     if af not in ['-4', '-6']:
@@ -329,6 +332,7 @@ def apply(vrf):
 
 if __name__ == '__main__':
     try:
+        check_kmod(k_mod)
         c = get_config()
         verify(c)
         generate(c)