1 # Copyright (c) 2016 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """Routing utilities library."""
16 from resources.libraries.python.VatExecutor import VatTerminal
17 from resources.libraries.python.topology import Topology
18 from resources.libraries.python.ssh import exec_cmd_no_error
21 class Routing(object):
23 """Routing utilities."""
25 # pylint: disable=too-many-arguments
27 def vpp_route_add(node, network, prefix_len, gateway=None,
28 interface=None, use_sw_index=True, resolve_attempts=10,
29 count=1, vrf=None, lookup_vrf=None):
30 """Add route to the VPP node.
32 :param node: Node to add route on.
33 :param network: Route destination network address.
34 :param prefix_len: Route destination network prefix length.
35 :param gateway: Route gateway address.
36 :param interface: Route interface.
37 :param vrf: VRF table ID (Optional).
38 :param use_sw_index: Use sw_if_index in VAT command.
39 :param resolve_attempts: Resolve attempts IP route add parameter.
40 :param count: number of IP addresses to add starting from network IP
41 with same prefix (increment is 1). If None, then is not used.
42 :param lookup_vrf: VRF table ID for lookup.
48 :type use_sw_index: bool
49 :type resolve_attempts: int
55 int_cmd = ('sw_if_index {}'.
56 format(Topology.get_interface_sw_index(node, interface)))
60 rap = 'resolve-attempts {}'.format(resolve_attempts) \
61 if resolve_attempts else ''
63 via = 'via {}'.format(gateway) if gateway else ''
65 cnt = 'count {}'.format(count) \
68 vrf = 'vrf {}'.format(vrf) if vrf else ''
70 lookup_vrf = 'lookup-in-vrf {}'.format(lookup_vrf) if lookup_vrf else ''
72 with VatTerminal(node, json_param=False) as vat:
73 vat.vat_terminal_exec_cmd_from_template('add_route.vat',
75 prefix_length=prefix_len,
81 lookup_vrf=lookup_vrf)
84 def add_fib_table(node, network, prefix_len, fib_id, place):
85 """Create new FIB table according to ID.
87 :param node: Node to add FIB on.
88 :param network: IP address to add to the FIB table.
89 :param prefix_len: IP address prefix length.
90 :param fib_id: FIB table ID.
91 :param place: Possible variants are local, drop.
98 with VatTerminal(node) as vat:
99 vat.vat_terminal_exec_cmd_from_template('add_fib_table.vat',
101 prefix_length=prefix_len,
106 def add_route(node, ip_addr, prefix, gateway, namespace=None):
107 """Add route in namespace.
109 :param node: Node where to execute command.
110 :param ip_addr: Route destination IP address.
111 :param prefix: IP prefix.
112 :param namespace: Execute command in namespace. Optional.
113 :param gateway: Gateway address.
120 if namespace is not None:
121 cmd = 'ip netns exec {} ip route add {}/{} via {}'.format(
122 namespace, ip_addr, prefix, gateway)
124 cmd = 'ip route add {}/{} via {}'.format(ip_addr, prefix, gateway)
125 exec_cmd_no_error(node, cmd, sudo=True)