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# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
def get_protocol_by_name(protocol_name):
"""Get protocol number by protocol name
% get_protocol_by_name('tcp')
% 6
"""
import socket
try:
protocol_number = socket.getprotobyname(protocol_name)
return protocol_number
except socket.error:
return protocol_name
def interface_exists_in_netns(interface_name, netns):
from vyos.util import rc_cmd
rc, out = rc_cmd(f'ip netns exec {netns} ip link show dev {interface_name}')
if rc == 0:
return True
return False
def get_interface_vrf(interface):
""" Returns VRF of given interface """
from vyos.util import dict_search
from vyos.util import get_interface_config
tmp = get_interface_config(interface)
if dict_search('linkinfo.info_slave_kind', tmp) == 'vrf':
return tmp['master']
return 'default'
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