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#!/usr/bin/env python3
#
# Delete 'system ipv6 blacklist' option as the IPv6 module can no longer be
# blacklisted as it is required by e.g. WireGuard and thus will always be
# loaded.
import os
import sys
ipv6_blacklist_file = '/etc/modprobe.d/vyatta_blacklist_ipv6.conf'
from vyos.configtree import ConfigTree
if len(sys.argv) < 2:
print("Must specify file name!")
sys.exit(1)
file_name = sys.argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
ip_base = ['system', 'ipv6']
if not config.exists(ip_base):
# Nothing to do
sys.exit(0)
else:
# delete 'system ipv6 blacklist' node
if config.exists(ip_base + ['blacklist']):
config.delete(ip_base + ['blacklist'])
if os.path.isfile(ipv6_blacklist_file):
os.unlink(ipv6_blacklist_file)
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
sys.exit(1)
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