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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2013 Cisco Systems, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# @author: Hareesh Puthalath, Cisco Systems, Inc.
import sys
import logging
from ncclient import manager
log = logging.getLogger(__name__)
# Various IOS Snippets
CREATE_VRF = """
<config>
<cli-config-data>
<cmd>ip routing</cmd>
<cmd>ip vrf %s</cmd>
</cli-config-data>
</config>
"""
REMOVE_VRF = """
<config>
<cli-config-data>
<cmd>ip routing</cmd>
<cmd>no ip vrf %s</cmd>
</cli-config-data>
</config>
"""
CREATE_SUBINTERFACE = """
<config>
<cli-config-data>
<cmd>interface %s</cmd>
<cmd>encapsulation dot1Q %s</cmd>
<cmd>ip vrf forwarding %s</cmd>
<cmd>ip address %s %s</cmd>
</cli-config-data>
</config>
"""
REMOVE_SUBINTERFACE = """
<config>
<cli-config-data>
<cmd>no interface %s</cmd>
</cli-config-data>
</config>
"""
def csr_connect(host, port, user, password):
return manager.connect(host=host,
port=port,
username=user,
password=password,
device_params={'name': "csr"},
timeout=30
)
def create_vrf(conn, vrf_name):
try:
confstr = CREATE_VRF % vrf_name
rpc_obj = conn.edit_config(target='running', config=confstr)
_check_response(rpc_obj, "CREATE_VRF")
except Exception:
log.exception("Exception in creating VRF %s" % vrf_name)
def create_subinterface(conn, subinterface, vlan_id, vrf_name, ip, mask):
try:
confstr = CREATE_SUBINTERFACE % (subinterface, vlan_id,
vrf_name, ip, mask)
rpc_obj = conn.edit_config(target='running', config=confstr)
_check_response(rpc_obj, 'CREATE_SUBINTERFACE')
except Exception:
log.exception("Exception in creating subinterface %s" % subinterface)
def remove_vrf(conn, vrf_name):
try:
confstr = REMOVE_VRF % vrf_name
rpc_obj = conn.edit_config(target='running', config=confstr)
_check_response(rpc_obj, "REMOVE_VRF")
except Exception:
log.exception("Exception in removing VRF %s" % vrf_name)
def remove_subinterface(conn, subinterface):
try:
confstr = REMOVE_SUBINTERFACE % (subinterface)
rpc_obj = conn.edit_config(target='running', config=confstr)
_check_response(rpc_obj, 'REMOVE_SUBINTERFACE')
except Exception:
log.exception("Exception in removing subinterface %s" % subinterface)
def _check_response(rpc_obj, snippet_name):
log.debug("RPCReply for %s is %s" % (snippet_name, rpc_obj.xml))
xml_str = rpc_obj.xml
if "<ok />" in xml_str:
log.info("%s successful" % snippet_name)
else:
log.error("Cannot successfully execute: %s" % snippet_name)
def test_csr(host, user, password):
with csr_connect(host, port=22, user=user, password=password) as m:
create_vrf(m, "test_vrf")
create_subinterface(m, "GigabitEthernet 1.500",
'500', 'test_vrf',
'192.168.0.1', '255.255.255.0')
#Optional
remove_vrf(m, "test_vrf")
remove_subinterface(m, "GigabitEthernet 1.500")
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
test_csr(sys.argv[1], sys.argv[2], sys.argv[3])
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