#!/usr/bin/python3
#
# Copyright 2018 ScyllaDB
#

#
# This file is part of Scylla.
#
# Scylla is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Scylla is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Scylla.  If not, see <http://www.gnu.org/licenses/>.

import os
import sys
from scylla_util import *

if __name__ == '__main__':
    if os.getuid() > 0:
        print('Requires root permission.')
        sys.exit(1)
    if is_redhat_variant():
        cfg = sysconfig_parser('/etc/sysconfig/scylla-server')
    else:
        cfg = sysconfig_parser('/etc/default/scylla-server')

    
    if cfg.get('NETWORK_MODE') == 'virtio':
        run('ip tuntap del mode tap dev {TAP}'.format(TAP=cfg.get('TAP')))
    elif cfg.get('NETWORK_MODE') == 'dpdk':
        run('/usr/lib/scylla/dpdk-devbind.py -u {ETHPCIID}'.format(ETHPCIID=cfg.get('ETHPCIID')))
        run('/usr/lib/scylla/dpdk-devbind.py -b {ETHDRV} {ETHPCIID}'.format(ETHDRV=cfg.get('ETHDRV'), ETHPCIID=cfg.get('ETHPCIID')))
