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# Copyright (c) 2019 Cisco and/or its affiliates.
# 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.
"""Proxy ARP library"""
from resources.libraries.python.InterfaceUtil import InterfaceUtil
from resources.libraries.python.PapiExecutor import PapiExecutor
from resources.libraries.python.VatExecutor import VatTerminal
class ProxyArp(object):
"""Proxy ARP utilities."""
@staticmethod
def vpp_add_proxy_arp(node, lo_ip4_addr, hi_ip4_addr):
"""Enable proxy ARP for a range of IP addresses.
:param node: VPP node to enable proxy ARP.
:param lo_ip4_addr: The lower limit of the IP addresses.
:param hi_ip4_addr: The upper limit of the IP addresses.
:type node: dict
:type lo_ip4_addr: str
:type hi_ip4_addr: str
"""
with VatTerminal(node) as vat:
vat.vat_terminal_exec_cmd_from_template("add_proxy_arp.vat",
lo_ip4_addr=lo_ip4_addr,
hi_ip4_addr=hi_ip4_addr)
@staticmethod
def vpp_proxy_arp_interface_enable(node, interface):
"""Enable proxy ARP on interface.
:param node: VPP node to enable proxy ARP on interface.
:param interface: Interface to enable proxy ARP.
:type node: dict
:type interface: str or int
"""
cmd = 'proxy_arp_intfc_enable_disable'
args = dict(
sw_if_index=InterfaceUtil.get_interface_index(node, interface),
enable_disable=1)
err_msg = 'Failed to enable proxy ARP on interface {ifc}'.format(
ifc=interface)
with PapiExecutor(node) as papi_exec:
papi_exec.add(cmd, **args).get_reply(err_msg)
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