856 lines
38 KiB
Python
856 lines
38 KiB
Python
# Copyright (c) 2012 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import random
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import netaddr
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from sqlalchemy import orm
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from sqlalchemy.orm import exc
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from quantum.api.v2 import router as api_router
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from quantum.common import exceptions as q_exc
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from quantum.db import api as db
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from quantum.db import models_v2
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from quantum.openstack.common import cfg
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from quantum import quantum_plugin_base_v2
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LOG = logging.getLogger(__name__)
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class QuantumDbPluginV2(quantum_plugin_base_v2.QuantumPluginBaseV2):
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""" A class that implements the v2 Quantum plugin interface
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using SQLAlchemy models. Whenever a non-read call happens
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the plugin will call an event handler class method (e.g.,
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network_created()). The result is that this class can be
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sub-classed by other classes that add custom behaviors on
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certain events.
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"""
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def __init__(self):
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# NOTE(jkoelker) This is an incomlete implementation. Subclasses
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# must override __init__ and setup the database
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# and not call into this class's __init__.
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# This connection is setup as memory for the tests.
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sql_connection = 'sqlite:///:memory:'
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db.configure_db({'sql_connection': sql_connection,
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'base': models_v2.model_base.BASEV2})
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def _get_tenant_id_for_create(self, context, resource):
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if context.is_admin and 'tenant_id' in resource:
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tenant_id = resource['tenant_id']
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elif ('tenant_id' in resource and
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resource['tenant_id'] != context.tenant_id):
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reason = _('Cannot create resource for another tenant')
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raise q_exc.AdminRequired(reason=reason)
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else:
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tenant_id = context.tenant_id
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return tenant_id
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def _model_query(self, context, model):
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query = context.session.query(model)
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# NOTE(jkoelker) non-admin queries are scoped to their tenant_id
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if not context.is_admin and hasattr(model.tenant_id):
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query = query.filter(tenant_id=context.tenant_id)
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return query
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def _get_by_id(self, context, model, id, joins=(), verbose=None):
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query = self._model_query(context, model)
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if verbose:
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if verbose and isinstance(verbose, list):
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options = [orm.joinedload(join) for join in joins
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if join in verbose]
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else:
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options = [orm.joinedload(join) for join in joins]
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query = query.options(*options)
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return query.filter_by(id=id).one()
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def _get_network(self, context, id, verbose=None):
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try:
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network = self._get_by_id(context, models_v2.Network, id,
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joins=('subnets',), verbose=verbose)
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except exc.NoResultFound:
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raise q_exc.NetworkNotFound(net_id=id)
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except exc.MultipleResultsFound:
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LOG.error('Multiple networks match for %s' % id)
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raise q_exc.NetworkNotFound(net_id=id)
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return network
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def _get_subnet(self, context, id, verbose=None):
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try:
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subnet = self._get_by_id(context, models_v2.Subnet, id,
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verbose=verbose)
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except exc.NoResultFound:
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raise q_exc.SubnetNotFound(subnet_id=id)
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except exc.MultipleResultsFound:
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LOG.error('Multiple subnets match for %s' % id)
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raise q_exc.SubnetNotFound(subnet_id=id)
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return subnet
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def _get_port(self, context, id, verbose=None):
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try:
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port = self._get_by_id(context, models_v2.Port, id,
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verbose=verbose)
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except exc.NoResultFound:
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# NOTE(jkoelker) The PortNotFound exceptions requires net_id
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# kwarg in order to set the message correctly
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raise q_exc.PortNotFound(port_id=id, net_id=None)
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except exc.MultipleResultsFound:
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LOG.error('Multiple ports match for %s' % id)
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raise q_exc.PortNotFound(port_id=id)
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return port
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def _fields(self, resource, fields):
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if fields:
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return dict(((key, item) for key, item in resource.iteritems()
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if key in fields))
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return resource
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def _get_collection(self, context, model, dict_func, filters=None,
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fields=None, verbose=None):
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collection = self._model_query(context, model)
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if filters:
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for key, value in filters.iteritems():
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column = getattr(model, key, None)
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if column:
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collection = collection.filter(column.in_(value))
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return [dict_func(c, fields) for c in collection.all()]
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@staticmethod
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def _generate_mac(context, network_id):
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base_mac = cfg.CONF.base_mac.split(':')
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max_retries = cfg.CONF.mac_generation_retries
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for i in range(max_retries):
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mac = [int(base_mac[0], 16), int(base_mac[1], 16),
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int(base_mac[2], 16), random.randint(0x00, 0x7f),
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random.randint(0x00, 0xff), random.randint(0x00, 0xff)]
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mac_address = ':'.join(map(lambda x: "%02x" % x, mac))
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if QuantumDbPluginV2._check_unique_mac(context, network_id,
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mac_address):
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LOG.debug("Generated mac for network %s is %s",
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network_id, mac_address)
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return mac_address
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else:
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LOG.debug("Generated mac %s exists. Remaining attempts %s.",
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mac_address, max_retries - (i + 1))
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LOG.error("Unable to generate mac address after %s attempts",
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max_retries)
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raise q_exc.MacAddressGenerationFailure(net_id=network_id)
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@staticmethod
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def _check_unique_mac(context, network_id, mac_address):
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mac_qry = context.session.query(models_v2.Port)
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try:
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mac_qry.filter_by(network_id=network_id,
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mac_address=mac_address).one()
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except exc.NoResultFound:
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return True
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return False
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@staticmethod
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def _recycle_ip(context, network_id, subnet_id, port_id, ip_address):
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"""Return an IP address to the pool of free IP's on the network
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subnet.
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"""
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# Grab all allocation pools for the subnet
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pool_qry = context.session.query(models_v2.IPAllocationPool)
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allocation_pools = pool_qry.filter_by(subnet_id=subnet_id).all()
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# Find the allocation pool for the IP to recycle
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pool_id = None
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for allocation_pool in allocation_pools:
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allocation_pool_range = netaddr.IPRange(
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allocation_pool['first_ip'],
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allocation_pool['last_ip'])
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if netaddr.IPAddress(ip_address) in allocation_pool_range:
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pool_id = allocation_pool['id']
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break
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if not pool_id:
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error_message = ("No allocation pool found for "
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"ip address:%s" % ip_address)
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raise q_exc.InvalidInput(error_message=error_message)
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# Two requests will be done on the database. The first will be to
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# search if an entry starts with ip_address + 1 (r1). The second
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# will be to see if an entry ends with ip_address -1 (r2).
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# If 1 of the above holds true then the specific entry will be
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# modified. If both hold true then the two ranges will be merged.
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# If there are no entries then a single entry will be added.
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range_qry = context.session.query(models_v2.IPAvailabilityRange)
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ip_first = str(netaddr.IPAddress(ip_address) + 1)
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ip_last = str(netaddr.IPAddress(ip_address) - 1)
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LOG.debug("Recycle %s", ip_address)
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try:
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r1 = range_qry.filter_by(allocation_pool_id=pool_id,
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first_ip=ip_first).one()
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LOG.debug("Recycle: first match for %s-%s", r1['first_ip'],
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r1['last_ip'])
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except exc.NoResultFound:
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r1 = []
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try:
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r2 = range_qry.filter_by(allocation_pool_id=pool_id,
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last_ip=ip_last).one()
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LOG.debug("Recycle: last match for %s-%s", r2['first_ip'],
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r2['last_ip'])
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except exc.NoResultFound:
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r2 = []
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if r1 and r2:
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# Merge the two ranges
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ip_range = models_v2.IPAvailabilityRange(
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allocation_pool_id=pool_id,
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first_ip=r2['first_ip'],
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last_ip=r1['last_ip'])
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context.session.add(ip_range)
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LOG.debug("Recycle: merged %s-%s and %s-%s", r2['first_ip'],
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r2['last_ip'], r1['first_ip'], r1['last_ip'])
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context.session.delete(r1)
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context.session.delete(r2)
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elif r1:
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# Update the range with matched first IP
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r1['first_ip'] = ip_address
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LOG.debug("Recycle: updated first %s-%s", r1['first_ip'],
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r1['last_ip'])
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elif r2:
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# Update the range with matched last IP
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r2['last_ip'] = ip_address
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LOG.debug("Recycle: updated last %s-%s", r2['first_ip'],
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r2['last_ip'])
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else:
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# Create a new range
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ip_range = models_v2.IPAvailabilityRange(
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allocation_pool_id=pool_id,
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first_ip=ip_address,
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last_ip=ip_address)
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context.session.add(ip_range)
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LOG.debug("Recycle: created new %s-%s", ip_address, ip_address)
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# Delete the IP address from the IPAllocate table
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LOG.debug("Delete allocated IP %s (%s/%s/%s)", ip_address,
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network_id, subnet_id, port_id)
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alloc_qry = context.session.query(models_v2.IPAllocation)
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allocated = alloc_qry.filter_by(network_id=network_id,
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port_id=port_id,
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ip_address=ip_address,
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subnet_id=subnet_id).delete()
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@staticmethod
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def _generate_ip(context, network_id, subnets):
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"""Generate an IP address.
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The IP address will be generated from one of the subnets defined on
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the network.
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"""
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range_qry = context.session.query(
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models_v2.IPAvailabilityRange).join(
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models_v2.IPAllocationPool)
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for subnet in subnets:
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range = range_qry.filter_by(subnet_id=subnet['id']).first()
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if not range:
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LOG.debug("All IP's from subnet %s (%s) allocated",
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subnet['id'], subnet['cidr'])
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continue
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ip_address = range['first_ip']
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LOG.debug("Allocated IP - %s from %s to %s", ip_address,
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range['first_ip'], range['last_ip'])
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if range['first_ip'] == range['last_ip']:
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# No more free indices on subnet => delete
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LOG.debug("No more free IP's in slice. Deleting allocation "
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"pool.")
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context.session.delete(range)
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else:
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# increment the first free
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range['first_ip'] = str(netaddr.IPAddress(ip_address) + 1)
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return {'ip_address': ip_address, 'subnet_id': subnet['id']}
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raise q_exc.IpAddressGenerationFailure(net_id=network_id)
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@staticmethod
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def _allocate_specific_ip(context, subnet_id, ip_address):
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"""Allocate a specific IP address on the subnet."""
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ip = int(netaddr.IPAddress(ip_address))
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range_qry = context.session.query(
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models_v2.IPAvailabilityRange,
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models_v2.IPAllocationPool).join(
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models_v2.IPAllocationPool)
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results = range_qry.filter_by(subnet_id=subnet_id).all()
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for (range, pool) in results:
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first = int(netaddr.IPAddress(range['first_ip']))
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last = int(netaddr.IPAddress(range['last_ip']))
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if first <= ip <= last:
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if first == last:
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context.session.delete(range)
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return
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elif first == ip:
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range['first_ip'] = str(netaddr.IPAddress(ip_address) + 1)
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return
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elif last == ip:
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range['last_ip'] = str(netaddr.IPAddress(ip_address) - 1)
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return
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else:
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# Split into two ranges
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new_first = str(netaddr.IPAddress(ip_address) + 1)
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new_last = range['last_ip']
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range['last_ip'] = str(netaddr.IPAddress(ip_address) - 1)
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ip_range = models_v2.IPAvailabilityRange(
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allocation_pool_id=pool['id'],
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first_ip=new_first,
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last_ip=new_last)
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context.session.add(ip_range)
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return
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@staticmethod
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def _check_unique_ip(context, network_id, subnet_id, ip_address):
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"""Validate that the IP address on the subnet is not in use."""
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ip_qry = context.session.query(models_v2.IPAllocation)
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try:
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ip_qry.filter_by(network_id=network_id,
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subnet_id=subnet_id,
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ip_address=ip_address).one()
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except exc.NoResultFound:
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return True
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return False
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@staticmethod
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def _check_subnet_ip(cidr, ip_address):
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"""Validate that the IP address is on the subnet."""
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ip = netaddr.IPAddress(ip_address)
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net = netaddr.IPNetwork(cidr)
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# Check that the IP is valid on subnet. This cannot be the
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# network or the broadcast address
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if (ip != net.network and
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ip != net.broadcast and
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net.netmask & ip == net.ip):
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return True
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return False
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def _test_fixed_ips_for_port(self, context, network_id, fixed_ips):
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"""Test fixed IPs for port.
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Check that configured subnets are valid prior to allocating any
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IPs. Include the subnet_id in the result if only an IP address is
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configured.
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:raises: InvalidInput, IpAddressInUse
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"""
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fixed_ip_set = []
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for fixed in fixed_ips:
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found = False
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if 'subnet_id' not in fixed:
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if 'ip_address' not in fixed:
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msg = _('IP allocation requires subnet_id or ip_address')
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raise q_exc.InvalidInput(error_message=msg)
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filter = {'network_id': [network_id]}
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subnets = self.get_subnets(context, filters=filter)
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for subnet in subnets:
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if QuantumDbPluginV2._check_subnet_ip(subnet['cidr'],
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fixed['ip_address']):
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found = True
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subnet_id = subnet['id']
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break
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if not found:
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msg = _('IP address %s is not a valid IP for the defined '
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'networks subnets') % fixed['ip_address']
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raise q_exc.InvalidInput(error_message=msg)
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else:
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subnet = self._get_subnet(context, fixed['subnet_id'])
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if subnet['network_id'] != network_id:
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msg = _('Failed to create port on network %s, '
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'because fixed_ips included invalid subnet '
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'%s') % (network_id, fixed['subnet_id'])
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raise q_exc.InvalidInput(error_message=msg)
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subnet_id = subnet['id']
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if 'ip_address' in fixed:
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# Ensure that the IP's are unique
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if not QuantumDbPluginV2._check_unique_ip(context, network_id,
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subnet_id,
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fixed['ip_address']):
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raise q_exc.IpAddressInUse(net_id=network_id,
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ip_address=fixed['ip_address'])
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# Ensure that the IP is valid on the subnet
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if (not found and
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not QuantumDbPluginV2._check_subnet_ip(
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subnet['cidr'], fixed['ip_address'])):
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msg = _('IP address %s is not a valid IP for the defined '
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'subnet') % fixed['ip_address']
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raise q_exc.InvalidInput(error_message=msg)
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fixed_ip_set.append({'subnet_id': subnet_id,
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'ip_address': fixed['ip_address']})
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else:
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fixed_ip_set.append({'subnet_id': subnet_id})
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return fixed_ip_set
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def _allocate_fixed_ips(self, context, network, fixed_ips):
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"""Allocate IP addresses according to the configured fixed_ips."""
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ips = []
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for fixed in fixed_ips:
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if 'ip_address' in fixed:
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# Remove the IP address from the allocation pool
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QuantumDbPluginV2._allocate_specific_ip(
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context, fixed['subnet_id'], fixed['ip_address'])
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ips.append({'ip_address': fixed['ip_address'],
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'subnet_id': fixed['subnet_id']})
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# Only subnet ID is specified => need to generate IP
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# from subnet
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else:
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subnets = [self._get_subnet(context, fixed['subnet_id'])]
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# IP address allocation
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result = self._generate_ip(context, network, subnets)
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ips.append({'ip_address': result['ip_address'],
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'subnet_id': result['subnet_id']})
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return ips
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def _update_ips_for_port(self, context, network_id, port_id, original_ips,
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new_ips):
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"""Add or remove IPs from the port."""
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ips = []
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# Remove all of the intersecting elements
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for original_ip in original_ips[:]:
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for new_ip in new_ips[:]:
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if 'ip_address' in new_ip:
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if (original_ip['ip_address'] == new_ip['ip_address']
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and
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original_ip['subnet_id'] == new_ip['subnet_id']):
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original_ips.remove(original_ip)
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new_ips.remove(new_ip)
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# Check if the IP's to add are OK
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to_add = self._test_fixed_ips_for_port(context, network_id, new_ips)
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for ip in original_ips:
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LOG.debug("Port update. Deleting %s", ip)
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QuantumDbPluginV2._recycle_ip(context,
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network_id=network_id,
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subnet_id=ip['subnet_id'],
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ip_address=ip['ip_address'],
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port_id=port_id)
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if to_add:
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LOG.debug("Port update. Adding %s", to_add)
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network = self._get_network(context, network_id)
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ips = self._allocate_fixed_ips(context, network, to_add)
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return ips
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def _allocate_ips_for_port(self, context, network, port):
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"""Allocate IP addresses for the port.
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If port['fixed_ips'] is set to 'ATTR_NOT_SPECIFIED', allocate IP
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addresses for the port. If port['fixed_ips'] contains an IP address or
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a subnet_id then allocate an IP address accordingly.
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"""
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p = port['port']
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ips = []
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|
|
fixed_configured = (p['fixed_ips'] != api_router.ATTR_NOT_SPECIFIED)
|
|
if fixed_configured:
|
|
configured_ips = self._test_fixed_ips_for_port(context,
|
|
p["network_id"],
|
|
p['fixed_ips'])
|
|
ips = self._allocate_fixed_ips(context, network, configured_ips)
|
|
else:
|
|
filter = {'network_id': [p['network_id']]}
|
|
subnets = self.get_subnets(context, filters=filter)
|
|
# Split into v4 and v6 subnets
|
|
v4 = []
|
|
v6 = []
|
|
for subnet in subnets:
|
|
if subnet['ip_version'] == 4:
|
|
v4.append(subnet)
|
|
else:
|
|
v6.append(subnet)
|
|
version_subnets = [v4, v6]
|
|
for subnets in version_subnets:
|
|
if subnets:
|
|
result = QuantumDbPluginV2._generate_ip(context, network,
|
|
subnets)
|
|
ips.append({'ip_address': result['ip_address'],
|
|
'subnet_id': result['subnet_id']})
|
|
return ips
|
|
|
|
def _validate_allocation_pools(self, ip_pools, gateway_ip, subnet_cidr):
|
|
"""Validate IP allocation pools.
|
|
|
|
Verify start and end address for each allocation pool are valid,
|
|
ie: constituted by valid and appropriately ordered IP addresses.
|
|
Also, verify pools do not overlap among themselves and with the
|
|
gateway IP. Finally, verify that each range, and the gateway IP,
|
|
fall within the subnet's CIDR.
|
|
|
|
"""
|
|
|
|
subnet = netaddr.IPNetwork(subnet_cidr)
|
|
subnet_first_ip = netaddr.IPAddress(subnet.first + 1)
|
|
subnet_last_ip = netaddr.IPAddress(subnet.last - 1)
|
|
|
|
LOG.debug("Performing IP validity checks on allocation pools")
|
|
ip_sets = []
|
|
for ip_pool in ip_pools:
|
|
try:
|
|
start_ip = netaddr.IPAddress(ip_pool['start'])
|
|
end_ip = netaddr.IPAddress(ip_pool['end'])
|
|
except netaddr.AddrFormatError:
|
|
LOG.error("Found invalid IP address in pool: %s - %s:",
|
|
ip_pool['start'],
|
|
ip_pool['end'])
|
|
raise q_exc.InvalidAllocationPool(pool=ip_pool)
|
|
if (start_ip.version != subnet.version or
|
|
end_ip.version != subnet.version):
|
|
LOG.error("Specified IP addresses do not match "
|
|
"the subnet IP version")
|
|
raise q_exc.InvalidAllocationPool(pool=ip_pool)
|
|
if end_ip < start_ip:
|
|
LOG.error("Start IP (%s) is greater than end IP (%s)",
|
|
ip_pool['start'],
|
|
ip_pool['end'])
|
|
raise q_exc.InvalidAllocationPool(pool=ip_pool)
|
|
if start_ip < subnet_first_ip or end_ip > subnet_last_ip:
|
|
LOG.error("Found pool larger than subnet CIDR:%s - %s",
|
|
ip_pool['start'],
|
|
ip_pool['end'])
|
|
raise q_exc.OutOfBoundsAllocationPool(
|
|
pool=ip_pool,
|
|
subnet_cidr=subnet_cidr)
|
|
# Valid allocation pool
|
|
# Create an IPSet for it for easily verifying overlaps
|
|
ip_sets.append(netaddr.IPSet(netaddr.IPRange(
|
|
ip_pool['start'],
|
|
ip_pool['end']).cidrs()))
|
|
|
|
LOG.debug("Checking for overlaps among allocation pools "
|
|
"and gateway ip")
|
|
ip_ranges = ip_pools[:]
|
|
# Treat gw as IPset as well
|
|
ip_ranges.append(gateway_ip)
|
|
ip_sets.append(netaddr.IPSet([gateway_ip]))
|
|
# Use integer cursors as an efficient way for implementing
|
|
# comparison and avoiding comparing the same pair twice
|
|
for l_cursor in range(len(ip_sets)):
|
|
for r_cursor in range(l_cursor + 1, len(ip_sets)):
|
|
if ip_sets[l_cursor] & ip_sets[r_cursor]:
|
|
l_range = ip_ranges[l_cursor]
|
|
r_range = ip_ranges[r_cursor]
|
|
LOG.error("Found overlapping ranges: %s and %s",
|
|
l_range, r_range)
|
|
raise q_exc.OverlappingAllocationPools(
|
|
pool_1=l_range,
|
|
pool_2=r_range,
|
|
subnet_cidr=subnet_cidr)
|
|
|
|
def _allocate_pools_for_subnet(self, context, subnet):
|
|
"""Create IP allocation pools for a given subnet
|
|
|
|
Pools are defined by the 'allocation_pools' attribute,
|
|
a list of dict objects with 'start' and 'end' keys for
|
|
defining the pool range.
|
|
|
|
"""
|
|
|
|
pools = []
|
|
if subnet['allocation_pools'] == api_router.ATTR_NOT_SPECIFIED:
|
|
# Auto allocate the pool around gateway
|
|
gw_ip = int(netaddr.IPAddress(subnet['gateway_ip']))
|
|
net = netaddr.IPNetwork(subnet['cidr'])
|
|
first_ip = net.first + 1
|
|
last_ip = net.last - 1
|
|
if gw_ip > first_ip:
|
|
pools.append({'start': str(netaddr.IPAddress(first_ip)),
|
|
'end': str(netaddr.IPAddress(gw_ip - 1))})
|
|
if gw_ip < last_ip:
|
|
pools.append({'start': str(netaddr.IPAddress(gw_ip + 1)),
|
|
'end': str(netaddr.IPAddress(last_ip))})
|
|
# return auto-generated pools
|
|
# no need to check for their validity
|
|
return pools
|
|
else:
|
|
pools = subnet['allocation_pools']
|
|
self._validate_allocation_pools(pools,
|
|
subnet['gateway_ip'],
|
|
subnet['cidr'])
|
|
return pools
|
|
|
|
def _make_network_dict(self, network, fields=None):
|
|
res = {'id': network['id'],
|
|
'name': network['name'],
|
|
'tenant_id': network['tenant_id'],
|
|
'admin_state_up': network['admin_state_up'],
|
|
'status': network['status'],
|
|
'subnets': [subnet['id']
|
|
for subnet in network['subnets']]}
|
|
|
|
return self._fields(res, fields)
|
|
|
|
def _make_subnet_dict(self, subnet, fields=None):
|
|
res = {'id': subnet['id'],
|
|
'network_id': subnet['network_id'],
|
|
'ip_version': subnet['ip_version'],
|
|
'cidr': subnet['cidr'],
|
|
'allocation_pools': [{'start': pool['first_ip'],
|
|
'end': pool['last_ip']}
|
|
for pool in subnet['allocation_pools']],
|
|
'gateway_ip': subnet['gateway_ip']}
|
|
return self._fields(res, fields)
|
|
|
|
def _make_port_dict(self, port, fields=None):
|
|
res = {"id": port["id"],
|
|
"network_id": port["network_id"],
|
|
'tenant_id': port['tenant_id'],
|
|
"mac_address": port["mac_address"],
|
|
"admin_state_up": port["admin_state_up"],
|
|
"status": port["status"],
|
|
"fixed_ips": [{'subnet_id': ip["subnet_id"],
|
|
'ip_address': ip["ip_address"]}
|
|
for ip in port["fixed_ips"]],
|
|
"device_id": port["device_id"]}
|
|
return self._fields(res, fields)
|
|
|
|
def create_network(self, context, network):
|
|
n = network['network']
|
|
|
|
# NOTE(jkoelker) Get the tenant_id outside of the session to avoid
|
|
# unneeded db action if the operation raises
|
|
tenant_id = self._get_tenant_id_for_create(context, n)
|
|
with context.session.begin():
|
|
network = models_v2.Network(tenant_id=tenant_id,
|
|
name=n['name'],
|
|
admin_state_up=n['admin_state_up'],
|
|
status="ACTIVE")
|
|
context.session.add(network)
|
|
return self._make_network_dict(network)
|
|
|
|
def update_network(self, context, id, network):
|
|
n = network['network']
|
|
with context.session.begin():
|
|
network = self._get_network(context, id)
|
|
network.update(n)
|
|
return self._make_network_dict(network)
|
|
|
|
def delete_network(self, context, id):
|
|
with context.session.begin():
|
|
network = self._get_network(context, id)
|
|
|
|
filter = {'network_id': [id]}
|
|
ports = self.get_ports(context, filters=filter)
|
|
if ports:
|
|
raise q_exc.NetworkInUse(net_id=id)
|
|
|
|
subnets_qry = context.session.query(models_v2.Subnet)
|
|
subnets_qry.filter_by(network_id=id).delete()
|
|
context.session.delete(network)
|
|
|
|
def get_network(self, context, id, fields=None, verbose=None):
|
|
network = self._get_network(context, id, verbose=verbose)
|
|
return self._make_network_dict(network, fields)
|
|
|
|
def get_networks(self, context, filters=None, fields=None, verbose=None):
|
|
return self._get_collection(context, models_v2.Network,
|
|
self._make_network_dict,
|
|
filters=filters, fields=fields,
|
|
verbose=verbose)
|
|
|
|
def create_subnet(self, context, subnet):
|
|
s = subnet['subnet']
|
|
|
|
net = netaddr.IPNetwork(s['cidr'])
|
|
if s['gateway_ip'] == api_router.ATTR_NOT_SPECIFIED:
|
|
s['gateway_ip'] = str(netaddr.IPAddress(net.first + 1))
|
|
|
|
with context.session.begin():
|
|
network = self._get_network(context, s["network_id"])
|
|
subnet = models_v2.Subnet(network_id=s['network_id'],
|
|
ip_version=s['ip_version'],
|
|
cidr=s['cidr'],
|
|
gateway_ip=s['gateway_ip'])
|
|
context.session.add(subnet)
|
|
pools = self._allocate_pools_for_subnet(context, s)
|
|
for pool in pools:
|
|
ip_pool = models_v2.IPAllocationPool(subnet=subnet,
|
|
first_ip=pool['start'],
|
|
last_ip=pool['end'])
|
|
context.session.add(ip_pool)
|
|
ip_range = models_v2.IPAvailabilityRange(
|
|
ipallocationpool=ip_pool,
|
|
first_ip=pool['start'],
|
|
last_ip=pool['end'])
|
|
context.session.add(ip_range)
|
|
return self._make_subnet_dict(subnet)
|
|
|
|
def update_subnet(self, context, id, subnet):
|
|
s = subnet['subnet']
|
|
with context.session.begin():
|
|
subnet = self._get_subnet(context, id)
|
|
subnet.update(s)
|
|
return self._make_subnet_dict(subnet)
|
|
|
|
def delete_subnet(self, context, id):
|
|
with context.session.begin():
|
|
subnet = self._get_subnet(context, id)
|
|
# Check if ports are using this subnet
|
|
allocated_qry = context.session.query(models_v2.IPAllocation)
|
|
allocated = allocated_qry.filter_by(subnet_id=id).all()
|
|
if allocated:
|
|
raise q_exc.SubnetInUse(subnet_id=id)
|
|
context.session.delete(subnet)
|
|
|
|
def get_subnet(self, context, id, fields=None, verbose=None):
|
|
subnet = self._get_subnet(context, id, verbose=verbose)
|
|
return self._make_subnet_dict(subnet, fields)
|
|
|
|
def get_subnets(self, context, filters=None, fields=None, verbose=None):
|
|
return self._get_collection(context, models_v2.Subnet,
|
|
self._make_subnet_dict,
|
|
filters=filters, fields=fields,
|
|
verbose=verbose)
|
|
|
|
def create_port(self, context, port):
|
|
p = port['port']
|
|
# NOTE(jkoelker) Get the tenant_id outside of the session to avoid
|
|
# unneeded db action if the operation raises
|
|
tenant_id = self._get_tenant_id_for_create(context, p)
|
|
|
|
with context.session.begin():
|
|
network = self._get_network(context, p["network_id"])
|
|
|
|
# Ensure that a MAC address is defined and it is unique on the
|
|
# network
|
|
if p['mac_address'] == api_router.ATTR_NOT_SPECIFIED:
|
|
p['mac_address'] = QuantumDbPluginV2._generate_mac(
|
|
context, p["network_id"])
|
|
else:
|
|
# Ensure that the mac on the network is unique
|
|
if not QuantumDbPluginV2._check_unique_mac(context,
|
|
p["network_id"],
|
|
p['mac_address']):
|
|
raise q_exc.MacAddressInUse(net_id=p["network_id"],
|
|
mac=p['mac_address'])
|
|
|
|
# Returns the IP's for the port
|
|
ips = self._allocate_ips_for_port(context, network, port)
|
|
|
|
port = models_v2.Port(tenant_id=tenant_id,
|
|
network_id=p['network_id'],
|
|
mac_address=p['mac_address'],
|
|
admin_state_up=p['admin_state_up'],
|
|
status="ACTIVE",
|
|
device_id=p['device_id'])
|
|
context.session.add(port)
|
|
|
|
# Update the allocated IP's
|
|
if ips:
|
|
with context.session.begin():
|
|
for ip in ips:
|
|
LOG.debug("Allocated IP %s (%s/%s/%s)", ip['ip_address'],
|
|
port['network_id'], ip['subnet_id'], port.id)
|
|
allocated = models_v2.IPAllocation(
|
|
network_id=port['network_id'],
|
|
port_id=port.id,
|
|
ip_address=ip['ip_address'],
|
|
subnet_id=ip['subnet_id'])
|
|
context.session.add(allocated)
|
|
|
|
return self._make_port_dict(port)
|
|
|
|
def update_port(self, context, id, port):
|
|
p = port['port']
|
|
|
|
with context.session.begin():
|
|
port = self._get_port(context, id)
|
|
# Check if the IPs need to be updated
|
|
if 'fixed_ips' in p:
|
|
original = self._make_port_dict(port)
|
|
ips = self._update_ips_for_port(context,
|
|
port["network_id"],
|
|
id,
|
|
original["fixed_ips"],
|
|
p['fixed_ips'])
|
|
# 'fixed_ip's not part of DB so it is deleted
|
|
del p['fixed_ips']
|
|
|
|
# Update ips if necessary
|
|
for ip in ips:
|
|
allocated = models_v2.IPAllocation(
|
|
network_id=port['network_id'], port_id=port.id,
|
|
ip_address=ip['ip_address'], subnet_id=ip['subnet_id'])
|
|
context.session.add(allocated)
|
|
|
|
port.update(p)
|
|
|
|
return self._make_port_dict(port)
|
|
|
|
def delete_port(self, context, id):
|
|
with context.session.begin():
|
|
port = self._get_port(context, id)
|
|
|
|
allocated_qry = context.session.query(models_v2.IPAllocation)
|
|
# recycle all of the IP's
|
|
# NOTE(garyk) this may be have to be addressed differently when
|
|
# working with a DHCP server.
|
|
allocated = allocated_qry.filter_by(port_id=id).all()
|
|
if allocated:
|
|
for a in allocated:
|
|
# Gateway address will not be recycled
|
|
subnet = self._get_subnet(context, a['subnet_id'])
|
|
if a['ip_address'] == subnet['gateway_ip']:
|
|
LOG.debug("Gateway address (%s/%s) is not recycled",
|
|
a['ip_address'], a['subnet_id'])
|
|
continue
|
|
|
|
QuantumDbPluginV2._recycle_ip(context,
|
|
network_id=a['network_id'],
|
|
subnet_id=a['subnet_id'],
|
|
ip_address=a['ip_address'],
|
|
port_id=id)
|
|
context.session.delete(port)
|
|
|
|
def get_port(self, context, id, fields=None, verbose=None):
|
|
port = self._get_port(context, id, verbose=verbose)
|
|
return self._make_port_dict(port, fields)
|
|
|
|
def get_ports(self, context, filters=None, fields=None, verbose=None):
|
|
fixed_ips = filters.pop('fixed_ips', [])
|
|
ports = self._get_collection(context, models_v2.Port,
|
|
self._make_port_dict,
|
|
filters=filters, fields=fields,
|
|
verbose=verbose)
|
|
if ports and fixed_ips:
|
|
filtered_ports = []
|
|
for port in ports:
|
|
if port['fixed_ips']:
|
|
ips = port['fixed_ips']
|
|
for fixed in fixed_ips:
|
|
found = False
|
|
# Convert to dictionary (deserialize)
|
|
fixed = eval(fixed)
|
|
for ip in ips:
|
|
if 'ip_address' in fixed and 'subnet_id' in fixed:
|
|
if (ip['ip_address'] == fixed['ip_address'] and
|
|
ip['subnet_id'] == fixed['subnet_id']):
|
|
found = True
|
|
elif 'ip_address' in fixed:
|
|
if ip['ip_address'] == fixed['ip_address']:
|
|
found = True
|
|
elif 'subnet_id' in fixed:
|
|
if ip['subnet_id'] == fixed['subnet_id']:
|
|
found = True
|
|
if found:
|
|
filtered_ports.append(port)
|
|
break
|
|
if found:
|
|
break
|
|
return filtered_ports
|
|
return ports
|