vmware-nsx/quantum/common/config.py
Gary Kotton ecaa605e4e Enhance Base MAC validation
Fixes bug 1033520

The base mac will now be validated when the configuration file is read.
In addition to this the following has been done:
1. checks validaity of the base mac - for example it cannot be a multicast MAC
2. adds a framework for attributes tests

Change-Id: Ibffab039ca7ee9e87eb79a7288e86401170bf129
2012-08-07 02:20:56 -04:00

133 lines
4.1 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 Nicira Networks, 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.
"""
Routines for configuring Quantum
"""
import logging
import logging.handlers
import os
import sys
from paste import deploy
from quantum.api.v2 import attributes
from quantum.openstack.common import cfg
from quantum.version import version_string
LOG = logging.getLogger(__name__)
core_opts = [
cfg.StrOpt('bind_host', default='0.0.0.0'),
cfg.IntOpt('bind_port', default=9696),
cfg.StrOpt('api_paste_config', default="api-paste.ini"),
cfg.StrOpt('api_extensions_path', default=""),
cfg.StrOpt('policy_file', default="policy.json"),
cfg.StrOpt('auth_strategy', default='keystone'),
cfg.StrOpt('core_plugin',
default='quantum.plugins.sample.SamplePlugin.FakePlugin'),
cfg.StrOpt('base_mac', default="fa:16:3e:00:00:00"),
cfg.IntOpt('mac_generation_retries', default=16)
]
# Register the configuration options
cfg.CONF.register_opts(core_opts)
def parse(args):
cfg.CONF(args=args, project='quantum',
version='%%prog %s' % version_string())
# Validate that the base_mac is of the correct format
msg = attributes._validate_regex(cfg.CONF.base_mac,
attributes.MAC_PATTERN)
if msg:
msg = "Base MAC: %s" % msg
raise Exception(msg)
def setup_logging(conf):
"""
Sets up the logging options for a log with supplied name
:param conf: a cfg.ConfOpts object
"""
if conf.log_config:
# Use a logging configuration file for all settings...
if os.path.exists(conf.log_config):
logging.config.fileConfig(conf.log_config)
return
else:
raise RuntimeError("Unable to locate specified logging "
"config file: %s" % conf.log_config)
root_logger = logging.root
if conf.debug:
root_logger.setLevel(logging.DEBUG)
elif conf.verbose:
root_logger.setLevel(logging.INFO)
else:
root_logger.setLevel(logging.WARNING)
formatter = logging.Formatter(conf.log_format, conf.log_date_format)
if conf.use_syslog:
try:
facility = getattr(logging.handlers.SysLogHandler,
conf.syslog_log_facility)
except AttributeError:
raise ValueError(_("Invalid syslog facility"))
handler = logging.handlers.SysLogHandler(address='/dev/log',
facility=facility)
elif conf.log_file:
logfile = conf.log_file
if conf.log_dir:
logfile = os.path.join(conf.log_dir, logfile)
handler = logging.handlers.WatchedFileHandler(logfile)
else:
handler = logging.StreamHandler(sys.stdout)
handler.setFormatter(formatter)
root_logger.addHandler(handler)
def load_paste_app(app_name):
"""
Builds and returns a WSGI app from a paste config file.
:param app_name: Name of the application to load
:raises RuntimeError when config file cannot be located or application
cannot be loaded from config file
"""
config_path = os.path.abspath(cfg.CONF.find_file(
cfg.CONF.api_paste_config))
LOG.info("Config paste file: %s", config_path)
try:
app = deploy.loadapp("config:%s" % config_path, name=app_name)
except (LookupError, ImportError):
msg = ("Unable to load %(app_name)s from "
"configuration file %(config_path)s.") % locals()
LOG.exception(msg)
raise RuntimeError(msg)
return app