Matt Jeanneret | f1e9c5d | 2019-02-08 07:41:29 -0500 | [diff] [blame] | 1 | # |
| 2 | # Copyright 2018 the original author or authors. |
| 3 | # |
| 4 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | # you may not use this file except in compliance with the License. |
| 6 | # You may obtain a copy of the License at |
| 7 | # |
| 8 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | # |
| 10 | # Unless required by applicable law or agreed to in writing, software |
| 11 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | # See the License for the specific language governing permissions and |
| 14 | # limitations under the License. |
| 15 | # |
| 16 | from voltha.extensions.omci.tasks.task import Task |
| 17 | from twisted.internet import reactor |
| 18 | from twisted.internet.defer import inlineCallbacks, failure, returnValue |
| 19 | from voltha.extensions.omci.omci_defs import ReasonCodes, EntityOperations |
| 20 | from voltha.extensions.omci.omci_me import * |
| 21 | |
| 22 | RC = ReasonCodes |
| 23 | OP = EntityOperations |
| 24 | |
| 25 | |
| 26 | class BrcmVlanFilterException(Exception): |
| 27 | pass |
| 28 | |
| 29 | |
| 30 | class BrcmVlanFilterTask(Task): |
| 31 | """ |
| 32 | Apply Vlan Tagging Filter Data and Extended VLAN Tagging Operation Configuration on an ANI and UNI |
| 33 | """ |
| 34 | task_priority = 200 |
| 35 | name = "Broadcom VLAN Filter Task" |
| 36 | |
| 37 | def __init__(self, omci_agent, device_id, uni_port, set_vlan_id, priority=task_priority): |
| 38 | """ |
| 39 | Class initialization |
| 40 | |
| 41 | :param omci_agent: (OmciAdapterAgent) OMCI Adapter agent |
| 42 | :param device_id: (str) ONU Device ID |
| 43 | :param set_vlan_id: (int) VLAN to filter for and set |
| 44 | :param priority: (int) OpenOMCI Task priority (0..255) 255 is the highest |
| 45 | """ |
| 46 | |
| 47 | self.log = structlog.get_logger(device_id=device_id, uni_port=uni_port.port_number) |
| 48 | |
| 49 | super(BrcmVlanFilterTask, self).__init__(BrcmVlanFilterTask.name, |
| 50 | omci_agent, |
| 51 | device_id, |
| 52 | priority=priority, |
| 53 | exclusive=True) |
| 54 | self._device = omci_agent.get_device(device_id) |
| 55 | self._uni_port = uni_port |
| 56 | self._set_vlan_id = set_vlan_id |
| 57 | self._results = None |
| 58 | self._local_deferred = None |
| 59 | self._config = self._device.configuration |
| 60 | |
| 61 | def cancel_deferred(self): |
| 62 | super(BrcmVlanFilterTask, self).cancel_deferred() |
| 63 | |
| 64 | d, self._local_deferred = self._local_deferred, None |
| 65 | try: |
| 66 | if d is not None and not d.called: |
| 67 | d.cancel() |
| 68 | except: |
| 69 | pass |
| 70 | |
| 71 | def start(self): |
| 72 | """ |
| 73 | Start Vlan Tagging Task |
| 74 | """ |
| 75 | super(BrcmVlanFilterTask, self).start() |
| 76 | self._local_deferred = reactor.callLater(0, self.perform_vlan_tagging) |
| 77 | |
| 78 | @inlineCallbacks |
| 79 | def perform_vlan_tagging(self): |
| 80 | """ |
| 81 | Perform the vlan tagging |
| 82 | """ |
| 83 | self.log.info('setting-vlan-tagging') |
| 84 | |
| 85 | try: |
| 86 | # TODO: parameterize these from the handler, or objects in the handler |
| 87 | # TODO: make this a member of the onu gem port or the uni port |
| 88 | _mac_bridge_service_profile_entity_id = 0x201 |
| 89 | _mac_bridge_port_ani_entity_id = 0x2102 # TODO: can we just use the entity id from the anis list? |
| 90 | # Delete bridge ani side vlan filter |
| 91 | msg = VlanTaggingFilterDataFrame(_mac_bridge_port_ani_entity_id + self._uni_port.mac_bridge_port_num) |
| 92 | frame = msg.delete() |
| 93 | self.log.debug('openomci-msg', omci_msg=msg) |
| 94 | self.strobe_watchdog() |
| 95 | results = yield self._device.omci_cc.send(frame) |
| 96 | self.check_status_and_state(results, 'flow-delete-vlan-tagging-filter-data') |
| 97 | |
| 98 | # Re-Create bridge ani side vlan filter |
| 99 | msg = VlanTaggingFilterDataFrame( |
| 100 | _mac_bridge_port_ani_entity_id + self._uni_port.mac_bridge_port_num, # Entity ID |
| 101 | vlan_tcis=[self._set_vlan_id], # VLAN IDs |
| 102 | forward_operation=0x10 |
| 103 | ) |
| 104 | frame = msg.create() |
| 105 | self.log.debug('openomci-msg', omci_msg=msg) |
| 106 | self.strobe_watchdog() |
| 107 | results = yield self._device.omci_cc.send(frame) |
| 108 | self.check_status_and_state(results, 'flow-create-vlan-tagging-filter-data') |
| 109 | |
| 110 | # Re-Create bridge ani side vlan filter |
| 111 | |
| 112 | # Update uni side extended vlan filter |
| 113 | # filter for untagged |
| 114 | # probably for eapol |
| 115 | # TODO: Create constants for the operation values. See omci spec |
| 116 | attributes = dict( |
| 117 | received_frame_vlan_tagging_operation_table= |
| 118 | VlanTaggingOperation( |
| 119 | filter_outer_priority=15, |
| 120 | filter_outer_vid=4096, |
| 121 | filter_outer_tpid_de=0, |
| 122 | |
| 123 | filter_inner_priority=15, |
| 124 | filter_inner_vid=4096, |
| 125 | filter_inner_tpid_de=0, |
| 126 | filter_ether_type=0, |
| 127 | |
| 128 | treatment_tags_to_remove=0, |
| 129 | treatment_outer_priority=15, |
| 130 | treatment_outer_vid=0, |
| 131 | treatment_outer_tpid_de=0, |
| 132 | |
| 133 | treatment_inner_priority=0, |
| 134 | treatment_inner_vid=self._set_vlan_id, |
| 135 | treatment_inner_tpid_de=4 |
| 136 | ) |
| 137 | ) |
| 138 | msg = ExtendedVlanTaggingOperationConfigurationDataFrame( |
| 139 | _mac_bridge_service_profile_entity_id + self._uni_port.mac_bridge_port_num, # Bridge Entity ID |
| 140 | attributes=attributes # See above |
| 141 | ) |
| 142 | frame = msg.set() |
| 143 | self.log.debug('openomci-msg', omci_msg=msg) |
| 144 | self.strobe_watchdog() |
| 145 | results = yield self._device.omci_cc.send(frame) |
| 146 | self.check_status_and_state(results, |
| 147 | 'flow-set-ext-vlan-tagging-op-config-data-untagged') |
| 148 | |
| 149 | # Update uni side extended vlan filter |
| 150 | # filter for vlan 0 |
| 151 | # TODO: Create constants for the operation values. See omci spec |
| 152 | attributes = dict( |
| 153 | received_frame_vlan_tagging_operation_table= |
| 154 | VlanTaggingOperation( |
| 155 | filter_outer_priority=15, # This entry is not a double-tag rule |
| 156 | filter_outer_vid=4096, # Do not filter on the outer VID value |
| 157 | filter_outer_tpid_de=0, # Do not filter on the outer TPID field |
| 158 | |
| 159 | filter_inner_priority=8, # Filter on inner vlan |
| 160 | filter_inner_vid=0x0, # Look for vlan 0 |
| 161 | filter_inner_tpid_de=0, # Do not filter on inner TPID field |
| 162 | filter_ether_type=0, # Do not filter on EtherType |
| 163 | |
| 164 | treatment_tags_to_remove=1, |
| 165 | treatment_outer_priority=15, |
| 166 | treatment_outer_vid=0, |
| 167 | treatment_outer_tpid_de=0, |
| 168 | |
| 169 | treatment_inner_priority=8, # Add an inner tag and insert this value as the priority |
| 170 | treatment_inner_vid=self._set_vlan_id, # use this value as the VID in the inner VLAN tag |
| 171 | treatment_inner_tpid_de=4, # set TPID |
| 172 | ) |
| 173 | ) |
| 174 | msg = ExtendedVlanTaggingOperationConfigurationDataFrame( |
| 175 | _mac_bridge_service_profile_entity_id + self._uni_port.mac_bridge_port_num, # Bridge Entity ID |
| 176 | attributes=attributes # See above |
| 177 | ) |
| 178 | frame = msg.set() |
| 179 | self.log.debug('openomci-msg', omci_msg=msg) |
| 180 | self.strobe_watchdog() |
| 181 | results = yield self._device.omci_cc.send(frame) |
| 182 | self.check_status_and_state(results, |
| 183 | 'flow-set-ext-vlan-tagging-op-config-data-zero-tagged') |
| 184 | |
| 185 | self.deferred.callback(self) |
| 186 | |
| 187 | except Exception as e: |
| 188 | self.log.exception('setting-vlan-tagging', e=e) |
| 189 | self.deferred.errback(failure.Failure(e)) |
| 190 | |
| 191 | def check_status_and_state(self, results, operation=''): |
| 192 | """ |
| 193 | Check the results of an OMCI response. An exception is thrown |
| 194 | if the task was cancelled or an error was detected. |
| 195 | |
| 196 | :param results: (OmciFrame) OMCI Response frame |
| 197 | :param operation: (str) what operation was being performed |
| 198 | :return: True if successful, False if the entity existed (already created) |
| 199 | """ |
| 200 | |
| 201 | omci_msg = results.fields['omci_message'].fields |
| 202 | status = omci_msg['success_code'] |
| 203 | error_mask = omci_msg.get('parameter_error_attributes_mask', 'n/a') |
| 204 | failed_mask = omci_msg.get('failed_attributes_mask', 'n/a') |
| 205 | unsupported_mask = omci_msg.get('unsupported_attributes_mask', 'n/a') |
| 206 | |
| 207 | self.log.debug("OMCI Result: %s", operation, omci_msg=omci_msg, |
| 208 | status=status, error_mask=error_mask, |
| 209 | failed_mask=failed_mask, unsupported_mask=unsupported_mask) |
| 210 | |
| 211 | if status == RC.Success: |
| 212 | self.strobe_watchdog() |
| 213 | return True |
| 214 | |
| 215 | elif status == RC.InstanceExists: |
| 216 | return False |