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-rw-r--r--build/neutron/agent/l3/namespaces.py142
1 files changed, 0 insertions, 142 deletions
diff --git a/build/neutron/agent/l3/namespaces.py b/build/neutron/agent/l3/namespaces.py
deleted file mode 100644
index aa28205..0000000
--- a/build/neutron/agent/l3/namespaces.py
+++ /dev/null
@@ -1,142 +0,0 @@
-# Copyright 2015 Hewlett-Packard Development Company, L.P.
-#
-# 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.
-#
-
-import functools
-
-from oslo_log import log as logging
-from oslo_utils import excutils
-
-from neutron.agent.linux.interface import OVSInterfaceDriver
-from neutron._i18n import _LE, _LW
-from neutron.agent.linux import ip_lib
-
-LOG = logging.getLogger(__name__)
-
-NS_PREFIX = 'qrouter-'
-INTERNAL_DEV_PREFIX = 'qr-'
-EXTERNAL_DEV_PREFIX = 'qg-'
-# TODO(Carl) It is odd that this file needs this. It is a dvr detail.
-ROUTER_2_FIP_DEV_PREFIX = 'rfp-'
-
-
-def build_ns_name(prefix, identifier):
- """Builds a namespace name from the given prefix and identifier
-
- :param prefix: The prefix which must end with '-' for legacy reasons
- :param identifier: The id associated with the namespace
- """
- return prefix + identifier
-
-
-def get_prefix_from_ns_name(ns_name):
- """Parses prefix from prefix-identifier
-
- :param ns_name: The name of a namespace
- :returns: The prefix ending with a '-' or None if there is no '-'
- """
- dash_index = ns_name.find('-')
- if 0 <= dash_index:
- return ns_name[:dash_index + 1]
-
-
-def get_id_from_ns_name(ns_name):
- """Parses identifier from prefix-identifier
-
- :param ns_name: The name of a namespace
- :returns: Identifier or None if there is no - to end the prefix
- """
- dash_index = ns_name.find('-')
- if 0 <= dash_index:
- return ns_name[dash_index + 1:]
-
-
-def check_ns_existence(f):
- @functools.wraps(f)
- def wrapped(self, *args, **kwargs):
- if not self.exists():
- LOG.warning(_LW('Namespace %(name)s does not exists. Skipping '
- '%(func)s'),
- {'name': self.name, 'func': f.__name__})
- return
- try:
- return f(self, *args, **kwargs)
- except RuntimeError:
- with excutils.save_and_reraise_exception() as ctx:
- if not self.exists():
- LOG.debug('Namespace %(name)s was concurrently deleted',
- self.name)
- ctx.reraise = False
- return wrapped
-
-
-class Namespace(object):
-
- def __init__(self, name, agent_conf, driver, use_ipv6):
- self.name = name
- self.ip_wrapper_root = ip_lib.IPWrapper()
- self.agent_conf = agent_conf
- self.driver = driver
- self.use_ipv6 = use_ipv6
-
- def create(self):
- ip_wrapper = self.ip_wrapper_root.ensure_namespace(self.name)
- cmd = ['sysctl', '-w', 'net.ipv4.ip_forward=1']
- ip_wrapper.netns.execute(cmd)
- if self.use_ipv6:
- cmd = ['sysctl', '-w', 'net.ipv6.conf.all.forwarding=1']
- ip_wrapper.netns.execute(cmd)
-
- def delete(self):
- try:
- self.ip_wrapper_root.netns.delete(self.name)
- except RuntimeError:
- msg = _LE('Failed trying to delete namespace: %s')
- LOG.exception(msg, self.name)
-
- def exists(self):
- return self.ip_wrapper_root.netns.exists(self.name)
-
-
-class RouterNamespace(Namespace):
-
- def __init__(self, router_id, agent_conf, driver, use_ipv6, ovs_driver):
- self.router_id = router_id
- self.ovs_driver = ovs_driver
- name = self._get_ns_name(router_id)
- super(RouterNamespace, self).__init__(
- name, agent_conf, driver, use_ipv6)
-
- @classmethod
- def _get_ns_name(cls, router_id):
- return build_ns_name(NS_PREFIX, router_id)
-
- @check_ns_existence
- def delete(self):
- ns_ip = ip_lib.IPWrapper(namespace=self.name)
- for d in ns_ip.get_devices(exclude_loopback=True):
- if d.name.startswith(INTERNAL_DEV_PREFIX):
- # device is on default bridge
- self.driver.unplug(d.name, namespace=self.name,
- prefix=INTERNAL_DEV_PREFIX)
- elif d.name.startswith(ROUTER_2_FIP_DEV_PREFIX):
- ns_ip.del_veth(d.name)
- elif d.name.startswith(EXTERNAL_DEV_PREFIX):
- self.ovs_driver.unplug(
- d.name,
- bridge=self.agent_conf.external_network_bridge,
- namespace=self.name,
- prefix=EXTERNAL_DEV_PREFIX)
-
- super(RouterNamespace, self).delete()