92 lines
3.4 KiB
Python
92 lines
3.4 KiB
Python
# Copyright (c) 2014 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import netaddr
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from neutron.agent.linux import ovs_lib
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from neutron.agent.linux import utils as agent_utils
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from neutron.common import utils
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from neutron.openstack.common import log as logging
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from neutron.plugins.common import constants as const
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from neutron.plugins.openvswitch.common import constants as ovs_const
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LOG = logging.getLogger(__name__)
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def vxlan_supported(root_helper, from_ip='192.0.2.1', to_ip='192.0.2.2'):
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name = "vxlantest-" + utils.get_random_string(6)
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with ovs_lib.OVSBridge(name, root_helper) as br:
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port = br.add_tunnel_port(from_ip, to_ip, const.TYPE_VXLAN)
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return port != ovs_const.INVALID_OFPORT
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def patch_supported(root_helper):
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seed = utils.get_random_string(6)
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name = "patchtest-" + seed
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peer_name = "peertest0-" + seed
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patch_name = "peertest1-" + seed
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with ovs_lib.OVSBridge(name, root_helper) as br:
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port = br.add_patch_port(patch_name, peer_name)
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return port != ovs_const.INVALID_OFPORT
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def nova_notify_supported():
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try:
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import neutron.notifiers.nova # noqa since unused
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return True
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except ImportError:
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return False
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def ofctl_arg_supported(root_helper, cmd, **kwargs):
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"""Verify if ovs-ofctl binary supports cmd with **kwargs.
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:param root_helper: utility to use when running shell commands.
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:param cmd: ovs-ofctl command to use for test.
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:param **kwargs: arguments to test with the command.
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:returns: a boolean if the supplied arguments are supported.
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"""
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br_name = 'br-test-%s' % utils.get_random_string(6)
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with ovs_lib.OVSBridge(br_name, root_helper) as test_br:
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full_args = ["ovs-ofctl", cmd, test_br.br_name,
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ovs_lib._build_flow_expr_str(kwargs, cmd.split('-')[0])]
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try:
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agent_utils.execute(full_args, root_helper=root_helper)
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except RuntimeError as e:
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LOG.debug("Exception while checking supported feature via "
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"command %s. Exception: %s" % (full_args, e))
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return False
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except Exception:
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LOG.exception(_("Unexpected exception while checking supported"
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" feature via command: %s") % full_args)
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return False
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else:
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return True
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def arp_responder_supported(root_helper):
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mac = netaddr.EUI('dead:1234:beef', dialect=netaddr.mac_unix)
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ip = netaddr.IPAddress('240.0.0.1')
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actions = ovs_const.ARP_RESPONDER_ACTIONS % {'mac': mac, 'ip': ip}
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return ofctl_arg_supported(root_helper,
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cmd='add-flow',
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table=21,
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priority=1,
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proto='arp',
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dl_vlan=42,
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nw_dst='%s' % ip,
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actions=actions)
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