def create_tap_service_precommit(self, context):
"""Send tap service creation message to agent.
This message includes taas_id that is added vlan_range_start to
so that the vpp taas agent can use taas_id as VLANID.
"""
# by default, the status is ACTIVE: wait for creation...
context.tap_service['status'] = constants.PENDING_CREATE
ts = context.tap_service
# Get taas id associated with the Tap Service
tap_id_association = context._plugin.create_tap_id_association(
context._plugin_context, ts['id'])
context.tap_id_association = tap_id_association
self.service_plugin.update_tap_service(
context._plugin_context, ts['id'],
{'tap_service': context.tap_service})
ts = context.tap_service
tap_id_association = context.tap_id_association
# taas_vlan_id = (tap_id_association['taas_id'] +
# cfg.CONF.taas.vlan_range_start)
taas_vlan_id = tap_id_association['taas_id']
port = self.service_plugin._get_port_details(context._plugin_context,
ts['port_id'])
if taas_vlan_id > cfg.CONF.taas.vlan_range_end:
raise taas_ex.TapServiceLimitReached()
msg = {"tap_service": ts, "taas_id": taas_vlan_id, "port": port}
self.taas_service.create(port, msg)
return
def create_tap_service_precommit(self, context):
"""Send tap service creation message to agent.
This message includes taas_id that is added vlan_range_start to
so that the vpp taas agent can use taas_id as VLANID.
"""
LOG.debug("create_tap_service_precommit called.")
# by default, the status is ACTIVE: wait for creation...
context.tap_service['status'] = constants.PENDING_CREATE
ts = context.tap_service
# Get taas id associated with the Tap Service
tap_id_association = context._plugin.create_tap_id_association(
context._plugin_context, ts['id'])
context.tap_id_association = tap_id_association
self.service_plugin.update_tap_service(
context._plugin_context, ts['id'],
{'tap_service': context.tap_service})
ts = context.tap_service
tap_id_association = context.tap_id_association
# The field port_id always exists as it's a field in the SQL database.
# For ERSPAN EXT mode, it is set to an empty string
# If the port_id is empty, we're in ERSPAN Ext mode.
# If port_id is not empty and erspan_dst_ip is defined, we're in
# ERSPAN Internal mode.
# Otherwise we're in normal port tapping mode.
if ts['port_id'] == '':
dest_type = 'ERSPAN_EXT'
elif 'erspan_dst_ip' in ts and ts['erspan_dst_ip'] != '':
dest_type = 'ERSPAN_INT'
else:
dest_type = 'Port'
if dest_type != 'ERSPAN_EXT':
taas_vlan_id = tap_id_association['taas_id']
port = self.service_plugin._get_port_details(
context._plugin_context, ts['port_id'])
if taas_vlan_id > cfg.CONF.taas.vlan_range_end:
raise taas_ex.TapServiceLimitReached()
msg = {
"tap_service": ts,
"taas_id": taas_vlan_id,
"port": port,
"dest_type": dest_type
}
self.taas_service.create(port, msg)
else:
msg = {"tap_service": ts, "dest_type": dest_type}
self.taas_service.create(None, msg)
self.service_plugin.update_tap_service(
context._plugin_context, ts['id'],
{'tap_service': context.tap_service})
return
def _allocate_taas_id_with_tap_service_id(self, context, tap_service_id):
query = context.session.query(TapIdAssociation).filter_by(
tap_service_id=None).first()
if not query:
self._rebuild_taas_id_allocation_range(context)
# try again
query = context.session.query(TapIdAssociation).filter_by(
tap_service_id=None).first()
if query:
query.update({"tap_service_id": tap_service_id})
return query
# not found
raise taas.TapServiceLimitReached()
def create_tap_service(self, context, tap_service):
LOG.debug("create_tap_service() called")
tenant_id = self._get_tenant_id_for_create(context,
tap_service['tap_service'])
t_s = tap_service['tap_service']
port_id = t_s['port_id']
# Get port details
port = self._get_port_details(context, port_id)
# Check if the port is owned by the tenant.
if port['tenant_id'] != tenant_id:
raise taas_ex.PortDoesNotBelongToTenant()
# Extract the host where the port is located
host = port['binding:host_id']
if host is not None:
LOG.debug("Host on which the port is created = %s" % host)
else:
LOG.debug("Host could not be found, Port Binding disbaled!")
# Create tap service in the db model
ts = super(TaasPlugin, self).create_tap_service(context, tap_service)
# Get taas id associated with the Tap Service
tap_id_association = self.get_tap_id_association(
context, tap_service_id=ts['id'])
taas_vlan_id = (tap_id_association['taas_id'] +
cfg.CONF.taas.vlan_range_start)
if taas_vlan_id > cfg.CONF.taas.vlan_range_end:
raise taas_ex.TapServiceLimitReached()
rpc_msg = {'tap_service': ts, 'taas_id': taas_vlan_id, 'port': port}
self.agent_rpc.create_tap_service(context, rpc_msg, host)
return ts
def create_tap_service_postcommit(self, context):
"""Send tap service creation RPC message to agent.
This RPC message includes taas_id that is added vlan_range_start to
so that taas-ovs-agent can use taas_id as VLANID.
"""
# Get taas id associated with the Tap Service
ts = context.tap_service
tap_id_association = context.tap_id_association
taas_vlan_id = (tap_id_association['taas_id'] +
cfg.CONF.taas.vlan_range_start)
port = self.service_plugin._get_port_details(context._plugin_context,
ts['port_id'])
host = port['binding:host_id']
if taas_vlan_id > cfg.CONF.taas.vlan_range_end:
raise taas_ex.TapServiceLimitReached()
rpc_msg = {'tap_service': ts, 'taas_id': taas_vlan_id, 'port': port}
self.agent_rpc.create_tap_service(context._plugin_context, rpc_msg,
host)
return
