Merge "Consistently use utils functions for policy auth"

13 files changed, 47 insertions, 105 deletions

diff --git a/ironic/api/controllers/v1/allocation.py b/ironic/api/controllers/v1/allocation.py
index 037e2c643..14a7201fc 100644
--- a/ironic/api/controllers/v1/allocation.py
+++ b/ironic/api/controllers/v1/allocation.py
@@ -26,7 +26,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic import objects
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
@@ -266,18 +265,17 @@ class AllocationsController(pecan.rest.RestController):
         return convert_with_links(rpc_allocation, fields=fields)
 
     def _authorize_create_allocation(self, allocation):
-        cdict = api.request.context.to_policy_values()
 
         try:
-            policy.authorize('baremetal:allocation:create', cdict, cdict)
+            api_utils.check_policy('baremetal:allocation:create')
             self._check_allowed_allocation_fields(allocation)
         except exception.HTTPForbidden:
+            cdict = api.request.context.to_policy_values()
             owner = cdict.get('project_id')
             if not owner or (allocation.get('owner')
                              and owner != allocation.get('owner')):
                 raise
-            policy.authorize('baremetal:allocation:create_restricted',
-                             cdict, cdict)
+            api_utils.check_policy('baremetal:allocation:create_restricted')
             self._check_allowed_allocation_fields(allocation)
             allocation['owner'] = owner
 
@@ -460,8 +458,7 @@ class NodeAllocationController(pecan.rest.RestController):
     @method.expose()
     @args.validate(fields=args.string_list)
     def get_all(self, fields=None):
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:allocation:get', cdict, cdict)
+        api_utils.check_policy('baremetal:allocation:get')
 
         result = self.inner._get_allocations_collection(self.parent_node_ident,
                                                         fields=fields)
@@ -476,8 +473,7 @@ class NodeAllocationController(pecan.rest.RestController):
     @method.expose(status_code=http_client.NO_CONTENT)
     def delete(self):
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:allocation:delete', cdict, cdict)
+        api_utils.check_policy('baremetal:allocation:delete')
 
         rpc_node = api_utils.get_rpc_node_with_suffix(self.parent_node_ident)
         allocations = objects.Allocation.list(
diff --git a/ironic/api/controllers/v1/bios.py b/ironic/api/controllers/v1/bios.py
index be6743d70..fd35689e2 100644
--- a/ironic/api/controllers/v1/bios.py
+++ b/ironic/api/controllers/v1/bios.py
@@ -21,7 +21,6 @@ from ironic.api.controllers.v1 import utils as api_utils
 from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
-from ironic.common import policy
 from ironic import objects
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
@@ -57,8 +56,7 @@ class NodeBiosController(rest.RestController):
     @method.expose()
     def get_all(self):
         """List node bios settings."""
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:node:bios:get', cdict, cdict)
+        api_utils.check_policy('baremetal:node:bios:get')
 
         node = api_utils.get_rpc_node(self.node_ident)
         settings = objects.BIOSSettingList.get_by_node_id(
@@ -73,8 +71,7 @@ class NodeBiosController(rest.RestController):
 
         :param setting_name: Logical name of the setting to retrieve.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:node:bios:get', cdict, cdict)
+        api_utils.check_policy('baremetal:node:bios:get')
 
         node = api_utils.get_rpc_node(self.node_ident)
         try:
diff --git a/ironic/api/controllers/v1/chassis.py b/ironic/api/controllers/v1/chassis.py
index 03cf770c5..9c280fa58 100644
--- a/ironic/api/controllers/v1/chassis.py
+++ b/ironic/api/controllers/v1/chassis.py
@@ -29,7 +29,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic import objects
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
@@ -157,8 +156,7 @@ class ChassisController(rest.RestController):
         :param fields: Optional, a list with a specified set of fields
             of the resource to be returned.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:chassis:get', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:get')
 
         api_utils.check_allow_specify_fields(fields)
 
@@ -183,8 +181,7 @@ class ChassisController(rest.RestController):
         :param sort_key: column to sort results by. Default: id.
         :param sort_dir: direction to sort. "asc" or "desc". Default: asc.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:chassis:get', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:get')
 
         # /detail should only work against collections
         parent = api.request.path.split('/')[:-1][-1]
@@ -205,8 +202,7 @@ class ChassisController(rest.RestController):
         :param fields: Optional, a list with a specified set of fields
             of the resource to be returned.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:chassis:get', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:get')
 
         api_utils.check_allow_specify_fields(fields)
         rpc_chassis = objects.Chassis.get_by_uuid(api.request.context,
@@ -223,8 +219,7 @@ class ChassisController(rest.RestController):
         :param chassis: a chassis within the request body.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:chassis:create', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:create')
 
         # NOTE(yuriyz): UUID is mandatory for notifications payload
         if not chassis.get('uuid'):
@@ -250,8 +245,7 @@ class ChassisController(rest.RestController):
         :param patch: a json PATCH document to apply to this chassis.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:chassis:update', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:update')
 
         api_utils.patch_validate_allowed_fields(
             patch, CHASSIS_SCHEMA['properties'])
@@ -282,8 +276,7 @@ class ChassisController(rest.RestController):
         :param chassis_uuid: UUID of a chassis.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:chassis:delete', cdict, cdict)
+        api_utils.check_policy('baremetal:chassis:delete')
 
         rpc_chassis = objects.Chassis.get_by_uuid(context, chassis_uuid)
         notify.emit_start_notification(context, rpc_chassis, 'delete')
diff --git a/ironic/api/controllers/v1/conductor.py b/ironic/api/controllers/v1/conductor.py
index c6e55a38f..61cbba78a 100644
--- a/ironic/api/controllers/v1/conductor.py
+++ b/ironic/api/controllers/v1/conductor.py
@@ -22,7 +22,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 import ironic.conf
 from ironic import objects
 
@@ -122,8 +121,7 @@ class ConductorsController(rest.RestController):
         :param detail: Optional, boolean to indicate whether retrieve a list
                        of conductors with detail.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:conductor:get', cdict, cdict)
+        api_utils.check_policy('baremetal:conductor:get')
 
         if not api_utils.allow_expose_conductors():
             raise exception.NotFound()
@@ -149,8 +147,7 @@ class ConductorsController(rest.RestController):
         :param fields: Optional, a list with a specified set of fields
             of the resource to be returned.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:conductor:get', cdict, cdict)
+        api_utils.check_policy('baremetal:conductor:get')
 
         if not api_utils.allow_expose_conductors():
             raise exception.NotFound()
diff --git a/ironic/api/controllers/v1/driver.py b/ironic/api/controllers/v1/driver.py
index d3d920cc4..9027e4638 100644
--- a/ironic/api/controllers/v1/driver.py
+++ b/ironic/api/controllers/v1/driver.py
@@ -25,7 +25,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic.drivers import base as driver_base
 
 
@@ -206,8 +205,7 @@ class DriverPassthruController(rest.RestController):
         :raises: DriverNotFound if the driver name is invalid or the
                  driver cannot be loaded.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:vendor_passthru', cdict, cdict)
+        api_utils.check_policy('baremetal:driver:vendor_passthru')
 
         if driver_name not in _VENDOR_METHODS:
             topic = api.request.rpcapi.get_topic_for_driver(driver_name)
@@ -230,8 +228,7 @@ class DriverPassthruController(rest.RestController):
         :param data: body of data to supply to the specified method.
         """
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:vendor_passthru', cdict, cdict)
+        api_utils.check_policy('baremetal:driver:vendor_passthru')
 
         topic = api.request.rpcapi.get_topic_for_driver(driver_name)
         resp = api_utils.vendor_passthru(driver_name, method, topic,
@@ -262,9 +259,8 @@ class DriverRaidController(rest.RestController):
         :raises: DriverNotFound, if driver is not loaded on any of the
             conductors.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:get_raid_logical_disk_properties',
-                         cdict, cdict)
+        api_utils.check_policy(
+            'baremetal:driver:get_raid_logical_disk_properties')
 
         if not api_utils.allow_raid_config():
             raise exception.NotAcceptable()
@@ -305,9 +301,7 @@ class DriversController(rest.RestController):
         #              will break from a single-line doc string.
         #              This is a result of a bug in sphinxcontrib-pecanwsme
         # https://github.com/dreamhost/sphinxcontrib-pecanwsme/issues/8
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:get', cdict, cdict)
-
+        api_utils.check_policy('baremetal:driver:get')
         api_utils.check_allow_driver_detail(detail)
         api_utils.check_allow_filter_driver_type(type)
         if type not in (None, 'classic', 'dynamic'):
@@ -332,8 +326,7 @@ class DriversController(rest.RestController):
         # retrieving a list of drivers using the current sqlalchemy schema, but
         # this path must be exposed for Pecan to route any paths we might
         # choose to expose below it.
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:get', cdict, cdict)
+        api_utils.check_policy('baremetal:driver:get')
 
         hw_type_dict = api.request.dbapi.get_active_hardware_type_dict()
         for name, hosts in hw_type_dict.items():
@@ -355,8 +348,7 @@ class DriversController(rest.RestController):
         :raises: DriverNotFound (HTTP 404) if the driver name is invalid or
                  the driver cannot be loaded.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:get_properties', cdict, cdict)
+        api_utils.check_policy('baremetal:driver:get_properties')
 
         if driver_name not in _DRIVER_PROPERTIES:
             topic = api.request.rpcapi.get_topic_for_driver(driver_name)
diff --git a/ironic/api/controllers/v1/event.py b/ironic/api/controllers/v1/event.py
index 8e17d3bfa..ed6164b4f 100644
--- a/ironic/api/controllers/v1/event.py
+++ b/ironic/api/controllers/v1/event.py
@@ -16,12 +16,10 @@ from ironic_lib import metrics_utils
 from oslo_log import log
 import pecan
 
-from ironic import api
 from ironic.api.controllers.v1 import utils as api_utils
 from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
-from ironic.common import policy
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
 
@@ -104,7 +102,6 @@ class EventsController(pecan.rest.RestController):
     def post(self, evts):
         if not api_utils.allow_expose_events():
             raise exception.NotFound()
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:events:post', cdict, cdict)
+        api_utils.check_policy('baremetal:events:post')
         for e in evts['events']:
             LOG.debug("Received external event: %s", e)
diff --git a/ironic/api/controllers/v1/node.py b/ironic/api/controllers/v1/node.py
index d07561f9c..e6b444c30 100644
--- a/ironic/api/controllers/v1/node.py
+++ b/ironic/api/controllers/v1/node.py
@@ -506,8 +506,7 @@ class IndicatorController(rest.RestController):
             mod:`ironic.common.indicator_states`.
 
         """
-        cdict = pecan.request.context.to_policy_values()
-        policy.authorize('baremetal:node:set_indicator_state', cdict, cdict)
+        api_utils.check_policy('baremetal:node:set_indicator_state')
 
         rpc_node = api_utils.get_rpc_node(node_ident)
         topic = pecan.request.rpcapi.get_topic_for(rpc_node)
@@ -529,8 +528,7 @@ class IndicatorController(rest.RestController):
         :returns: a dict with the "state" key and one of
             mod:`ironic.common.indicator_states` as a value.
         """
-        cdict = pecan.request.context.to_policy_values()
-        policy.authorize('baremetal:node:get_indicator_state', cdict, cdict)
+        api_utils.check_policy('baremetal:node:get_indicator_state')
 
         rpc_node = api_utils.get_rpc_node(node_ident)
         topic = pecan.request.rpcapi.get_topic_for(rpc_node)
@@ -553,8 +551,7 @@ class IndicatorController(rest.RestController):
             (from `get_supported_indicators`) as values.
 
         """
-        cdict = pecan.request.context.to_policy_values()
-        policy.authorize('baremetal:node:get_indicator_state', cdict, cdict)
+        api_utils.check_policy('baremetal:node:get_indicator_state')
 
         rpc_node = api_utils.get_rpc_node(node_ident)
         topic = pecan.request.rpcapi.get_topic_for(rpc_node)
@@ -1995,8 +1992,7 @@ class NodesController(rest.RestController):
             raise exception.OperationNotPermitted()
 
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:node:create', cdict, cdict)
+        api_utils.check_policy('baremetal:node:create')
 
         reject_fields_in_newer_versions(node)
 
diff --git a/ironic/api/controllers/v1/port.py b/ironic/api/controllers/v1/port.py
index 53be406e8..f4480ef7b 100644
--- a/ironic/api/controllers/v1/port.py
+++ b/ironic/api/controllers/v1/port.py
@@ -30,7 +30,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic.common import states as ir_states
 from ironic import objects
 
@@ -501,8 +500,7 @@ class PortsController(rest.RestController):
             raise exception.OperationNotPermitted()
 
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:port:create', cdict, cdict)
+        api_utils.check_policy('baremetal:port:create')
 
         # NOTE(lucasagomes): Create the node_id attribute on-the-fly
         #                    to satisfy the api -> rpc object
diff --git a/ironic/api/controllers/v1/portgroup.py b/ironic/api/controllers/v1/portgroup.py
index 6e57ff78f..077e9ab71 100644
--- a/ironic/api/controllers/v1/portgroup.py
+++ b/ironic/api/controllers/v1/portgroup.py
@@ -27,7 +27,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic.common import states as ir_states
 from ironic import objects
 
@@ -269,8 +268,7 @@ class PortgroupsController(pecan.rest.RestController):
         if not api_utils.allow_portgroups():
             raise exception.NotFound()
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:portgroup:get', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:get')
 
         api_utils.check_allowed_portgroup_fields(fields)
         api_utils.check_allowed_portgroup_fields([sort_key])
@@ -308,8 +306,7 @@ class PortgroupsController(pecan.rest.RestController):
         if not api_utils.allow_portgroups():
             raise exception.NotFound()
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:portgroup:get', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:get')
         api_utils.check_allowed_portgroup_fields([sort_key])
 
         # NOTE: /detail should only work against collections
@@ -335,8 +332,7 @@ class PortgroupsController(pecan.rest.RestController):
         if not api_utils.allow_portgroups():
             raise exception.NotFound()
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:portgroup:get', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:get')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -360,8 +356,7 @@ class PortgroupsController(pecan.rest.RestController):
             raise exception.NotFound()
 
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:portgroup:create', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:create')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -414,8 +409,7 @@ class PortgroupsController(pecan.rest.RestController):
             raise exception.NotFound()
 
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:portgroup:update', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:update')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -511,8 +505,7 @@ class PortgroupsController(pecan.rest.RestController):
             raise exception.NotFound()
 
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:portgroup:delete', cdict, cdict)
+        api_utils.check_policy('baremetal:portgroup:delete')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
diff --git a/ironic/api/controllers/v1/ramdisk.py b/ironic/api/controllers/v1/ramdisk.py
index 705389534..46cc9fa53 100644
--- a/ironic/api/controllers/v1/ramdisk.py
+++ b/ironic/api/controllers/v1/ramdisk.py
@@ -25,7 +25,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic.common import states
 from ironic.common import utils
 from ironic import objects
@@ -95,8 +94,7 @@ class LookupController(rest.RestController):
         if not api_utils.allow_ramdisk_endpoints():
             raise exception.NotFound()
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:driver:ipa_lookup', cdict, cdict)
+        api_utils.check_policy('baremetal:driver:ipa_lookup')
 
         # Validate the list of MAC addresses
         if addresses is None:
@@ -187,8 +185,7 @@ class HeartbeatController(rest.RestController):
             raise exception.InvalidParameterValue(
                 _('Field "agent_version" not recognised'))
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:node:ipa_heartbeat', cdict, cdict)
+        api_utils.check_policy('baremetal:node:ipa_heartbeat')
 
         if (agent_verify_ca is not None
                 and not api_utils.allow_verify_ca_in_heartbeat()):
diff --git a/ironic/api/controllers/v1/volume.py b/ironic/api/controllers/v1/volume.py
index 5c4e85542..11e2744d7 100644
--- a/ironic/api/controllers/v1/volume.py
+++ b/ironic/api/controllers/v1/volume.py
@@ -24,7 +24,6 @@ from ironic.api.controllers.v1 import volume_connector
 from ironic.api.controllers.v1 import volume_target
 from ironic.api import method
 from ironic.common import exception
-from ironic.common import policy
 
 
 def convert(node_ident=None):
@@ -72,8 +71,7 @@ class VolumeController(rest.RestController):
         if not api_utils.allow_volume():
             raise exception.NotFound()
 
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:volume:get', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:get')
 
         return convert(self.parent_node_ident)
 
diff --git a/ironic/api/controllers/v1/volume_connector.py b/ironic/api/controllers/v1/volume_connector.py
index eb653a906..0a6ffa4d5 100644
--- a/ironic/api/controllers/v1/volume_connector.py
+++ b/ironic/api/controllers/v1/volume_connector.py
@@ -27,7 +27,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic import objects
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
@@ -180,8 +179,7 @@ class VolumeConnectorsController(rest.RestController):
         :raises: InvalidParameterValue if sort key is invalid for sorting.
         :raises: InvalidParameterValue if both fields and detail are specified.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:volume:get', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:get')
 
         if fields is None and not detail:
             fields = _DEFAULT_RETURN_FIELDS
@@ -212,8 +210,7 @@ class VolumeConnectorsController(rest.RestController):
         :raises: VolumeConnectorNotFound if no volume connector exists with
                  the specified UUID.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:volume:get', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:get')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -241,8 +238,7 @@ class VolumeConnectorsController(rest.RestController):
                  same UUID already exists
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:create', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:create')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -298,8 +294,7 @@ class VolumeConnectorsController(rest.RestController):
                  volume connector is not powered off.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:update', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:update')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -375,8 +370,7 @@ class VolumeConnectorsController(rest.RestController):
                  volume connector is not powered off.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:delete', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:delete')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
diff --git a/ironic/api/controllers/v1/volume_target.py b/ironic/api/controllers/v1/volume_target.py
index 483038163..9fa5f8909 100644
--- a/ironic/api/controllers/v1/volume_target.py
+++ b/ironic/api/controllers/v1/volume_target.py
@@ -27,7 +27,6 @@ from ironic.api import method
 from ironic.common import args
 from ironic.common import exception
 from ironic.common.i18n import _
-from ironic.common import policy
 from ironic import objects
 
 METRICS = metrics_utils.get_metrics_logger(__name__)
@@ -189,8 +188,7 @@ class VolumeTargetsController(rest.RestController):
         :raises: InvalidParameterValue if sort key is invalid for sorting.
         :raises: InvalidParameterValue if both fields and detail are specified.
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:volume:get', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:get')
 
         if fields is None and not detail:
             fields = _DEFAULT_RETURN_FIELDS
@@ -222,8 +220,7 @@ class VolumeTargetsController(rest.RestController):
                  node.
         :raises: VolumeTargetNotFound if no volume target with this UUID exists
         """
-        cdict = api.request.context.to_policy_values()
-        policy.authorize('baremetal:volume:get', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:get')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -251,8 +248,7 @@ class VolumeTargetsController(rest.RestController):
                  UUID exists
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:create', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:create')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -305,8 +301,7 @@ class VolumeTargetsController(rest.RestController):
                  volume target is not powered off.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:update', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:update')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()
@@ -379,8 +374,7 @@ class VolumeTargetsController(rest.RestController):
                  volume target is not powered off.
         """
         context = api.request.context
-        cdict = context.to_policy_values()
-        policy.authorize('baremetal:volume:delete', cdict, cdict)
+        api_utils.check_policy('baremetal:volume:delete')
 
         if self.parent_node_ident:
             raise exception.OperationNotPermitted()