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# Copyright (c) 2016-2017 Intel Corporation
#
# 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.
""" Helper function to get Network Service testing configuration """
from __future__ import absolute_import
import logging
import os
import re
from oslo_config import cfg
from oslo_config.cfg import NoSuchOptError
from oslo_utils import encodeutils
NSB_ROOT = "/opt/nsb_bin"
CONF = cfg.CONF
OPTS = [
cfg.StrOpt('bin_path',
default=NSB_ROOT,
help='bin_path for VNFs location.'),
cfg.StrOpt('trex_path',
default=os.path.join(NSB_ROOT, 'trex/scripts'),
help='trex automation lib path.'),
cfg.StrOpt('trex_client_lib',
default=os.path.join(NSB_ROOT, 'trex_client/stl'),
help='trex python library path.'),
cfg.StrOpt('jre_path_i386',
default='',
help='path to installation of 32-bit Java 1.7+.'),
]
CONF.register_opts(OPTS, group="nsb")
HEXADECIMAL = "[0-9a-zA-Z]"
class PciAddress(object):
"""Class to handle PCI addresses.
A PCI address could be written in two ways:
- Simple BDF notation:
00:00.0 # bus:device.function
- With domain extension.
0000:00:00.0 # domain:bus:device.function
Note: in Libvirt, 'device' is called 'slot'.
Reference: https://wiki.xenproject.org/wiki/
Bus:Device.Function_(BDF)_Notation
"""
PCI_PATTERN_STR = (
r"((?P<domain>[0-9a-zA-Z]{4}):)?(?P<bus>[0-9a-zA-Z]{2}):"
r"(?P<slot>[0-9a-zA-Z]{2})\.(?P<function>[0-9a-zA-Z]{1})")
def __init__(self, address):
pci_pattern = re.compile(self.PCI_PATTERN_STR)
match = pci_pattern.search(address)
if not match:
raise ValueError('Invalid PCI address: {}'.format(address))
self._domain = (match.group('domain') or '0000').lower()
self._bus = match.group('bus').lower()
self._slot = match.group('slot').lower()
self._function = match.group('function').lower()
self.address = '{:0>4}:{:0>2}:{:0>2}.{:1}'.format(self.domain,
self.bus,
self.slot,
self.function)
self.match = match
def __repr__(self):
return self.address
@property
def domain(self):
return self._domain
@property
def bus(self):
return self._bus
@property
def slot(self):
return self._slot
@property
def function(self):
return self._function
def values(self):
return [self._domain, self._bus, self._slot, self._function]
def get_nsb_option(option, default=None):
"""return requested option for yardstick.conf"""
try:
return CONF.nsb.__getitem__(option)
except NoSuchOptError:
logging.debug("Invalid key %s", option)
return default
def provision_tool(connection, tool_path, tool_file=None):
"""
verify if the tool path exits on the node,
if not push the local binary to remote node
:return - Tool path
"""
if not tool_path:
tool_path = get_nsb_option('tool_path')
if tool_file:
tool_path = os.path.join(tool_path, tool_file)
exit_status = connection.execute("which %s > /dev/null 2>&1" % tool_path)[0]
if exit_status == 0:
return encodeutils.safe_decode(tool_path, incoming='utf-8').rstrip()
logging.warning("%s not found on %s, will try to copy from localhost",
tool_path, connection.host)
bin_path = get_nsb_option("bin_path")
connection.execute('mkdir -p "%s"' % bin_path)
connection.put(tool_path, tool_path)
return tool_path
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