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# Copyright (c) 2018 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.
"""VPP util library."""
from resources.libraries.python.constants import Constants
from resources.libraries.python.DUTSetup import DUTSetup
from resources.libraries.python.ssh import exec_cmd_no_error
from resources.libraries.python.topology import NodeType
from resources.libraries.python.VatExecutor import VatExecutor
class VPPUtil(object):
"""General class for any VPP related methods/functions."""
@staticmethod
def show_vpp_settings(node, *additional_cmds):
"""Print default VPP settings. In case others are needed, can be
accepted as next parameters (each setting one parameter), preferably
in form of a string.
:param node: VPP node.
:param additional_cmds: Additional commands that the vpp should print
settings for.
:type node: dict
:type additional_cmds: tuple
"""
def_setting_tb_displayed = {
'IPv6 FIB': 'ip6 fib',
'IPv4 FIB': 'ip fib',
'Interface IP': 'int addr',
'Interfaces': 'int',
'ARP': 'ip arp',
'Errors': 'err'
}
if additional_cmds:
for cmd in additional_cmds:
def_setting_tb_displayed['Custom Setting: {}'.format(cmd)] = cmd
for _, cmd in def_setting_tb_displayed.items():
command = 'vppctl sh {cmd}'.format(cmd=cmd)
exec_cmd_no_error(node, command, timeout=30, sudo=True)
@staticmethod
def start_vpp_service(node):
"""Start VPP service on the specified node.
:param node: VPP node.
:type node: dict
:raises RuntimeError: If VPP service fails to start.
"""
DUTSetup.start_service(node, Constants.VPP_UNIT)
DUTSetup.get_service_logs(node, Constants.VPP_UNIT)
@staticmethod
def start_vpp_service_on_all_duts(nodes):
"""Start up the VPP service on all nodes.
:param nodes: Nodes in the topology.
:type nodes: dict
"""
DUTSetup.start_service_on_all_duts(nodes, Constants.VPP_UNIT)
@staticmethod
def stop_vpp_service(node):
"""Stop VPP service on the specified node.
:param node: VPP node.
:type node: dict
:raises RuntimeError: If VPP service fails to stop.
"""
DUTSetup.stop_service(node, Constants.VPP_UNIT)
@staticmethod
def verify_vpp_on_dut(node):
"""Verify that VPP is installed on DUT node.
:param node: DUT node.
:type node: dict
:raises RuntimeError: If failed to restart VPP, get VPP version
or get VPP interfaces.
"""
VPPUtil.vpp_show_version_verbose(node)
VPPUtil.vpp_show_interfaces(node)
@staticmethod
def verify_vpp_on_all_duts(nodes):
"""Verify that VPP is installed on all DUT nodes.
:param nodes: Nodes in the topology.
:type nodes: dict
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
DUTSetup.start_service(node, Constants.VPP_UNIT)
VPPUtil.vpp_show_version_verbose(node)
VPPUtil.vpp_show_interfaces(node)
@staticmethod
def vpp_show_version_verbose(node):
"""Run "show version verbose" CLI command.
:param node: Node to run command on.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("show_version_verbose.vat", node, json_out=False)
try:
vat.script_should_have_passed()
except AssertionError:
raise RuntimeError('Failed to get VPP version on host: {name}'.
format(name=node['host']))
@staticmethod
def show_vpp_version_on_all_duts(nodes):
"""Show VPP version verbose on all DUTs.
:param nodes: VPP nodes.
:type nodes: dict
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
VPPUtil.vpp_show_version_verbose(node)
@staticmethod
def vpp_show_interfaces(node):
"""Run "show interface" CLI command.
:param node: Node to run command on.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("show_interface.vat", node, json_out=False)
try:
vat.script_should_have_passed()
except AssertionError:
raise RuntimeError('Failed to get VPP interfaces on host: {name}'.
format(name=node['host']))
@staticmethod
def vpp_show_crypto_device_mapping(node):
"""Run "show crypto device mapping" CLI command.
:param node: Node to run command on.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("show_crypto_device_mapping.vat", node,
json_out=False)
@staticmethod
def vpp_api_trace_dump(node):
"""Run "api trace custom-dump" CLI command.
:param node: Node to run command on.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("api_trace_dump.vat", node, json_out=False)
@staticmethod
def vpp_api_trace_save(node):
"""Run "api trace save" CLI command.
:param node: Node to run command on.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("api_trace_save.vat", node, json_out=False)
@staticmethod
def vpp_enable_traces_on_dut(node):
"""Enable vpp packet traces on the DUT node.
:param node: DUT node to set up.
:type node: dict
"""
vat = VatExecutor()
vat.execute_script("enable_dpdk_traces.vat", node, json_out=False)
vat.execute_script("enable_vhost_user_traces.vat", node, json_out=False)
vat.execute_script("enable_memif_traces.vat", node, json_out=False)
@staticmethod
def vpp_enable_traces_on_all_duts(nodes):
"""Enable vpp packet traces on all DUTs in the given topology.
:param nodes: Nodes in the topology.
:type nodes: dict
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
VPPUtil.vpp_enable_traces_on_dut(node)
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