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# Copyright 2018 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/>.
import re
import json
import netifaces
intf_type_data_file = '/usr/share/vyos/interface-types.json'
def list_interfaces():
interfaces = netifaces.interfaces()
# Remove "fake" interfaces associated with drivers
for i in ["dummy0", "ip6tnl0", "tunl0", "ip_vti0", "ip6_vti0"]:
try:
interfaces.remove(i)
except ValueError:
pass
return interfaces
def list_interfaces_of_type(typ):
with open(intf_type_data_file, 'r') as f:
types_data = json.load(f)
all_intfs = list_interfaces()
if not (typ in types_data.keys()):
raise ValueError("Unknown interface type: {0}".format(typ))
else:
r = re.compile('^{0}\d+'.format(types_data[typ]))
return list(filter(lambda i: re.match(r, i), all_intfs))
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