Chip Boling | 8e042f6 | 2019-02-12 16:14:34 -0600 | [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 twisted.internet import reactor |
| 17 | from twisted.internet.defer import inlineCallbacks, returnValue, TimeoutError, failure |
| 18 | from voltha.extensions.omci.omci_me import * |
| 19 | from voltha.extensions.omci.tasks.task import Task |
| 20 | from voltha.extensions.omci.omci_defs import * |
| 21 | |
| 22 | OP = EntityOperations |
| 23 | RC = ReasonCodes |
| 24 | |
| 25 | |
| 26 | class MibDownloadFailure(Exception): |
| 27 | """ |
| 28 | This error is raised by default when the download fails |
| 29 | """ |
| 30 | |
| 31 | |
| 32 | class MibResourcesFailure(Exception): |
| 33 | """ |
| 34 | This error is raised by when one or more resources required is not available |
| 35 | """ |
| 36 | |
| 37 | |
| 38 | class AdtnMibDownloadTask(Task): |
| 39 | """ |
| 40 | OpenOMCI MIB Download Example |
| 41 | |
| 42 | This task takes the legacy OMCI 'script' for provisioning the Adtran ONU |
| 43 | and converts it to run as a Task on the OpenOMCI Task runner. This is |
| 44 | in order to begin to decompose service instantiation in preparation for |
| 45 | Technology Profile work. |
| 46 | |
| 47 | Once technology profiles are ready, some of this task may hang around or |
| 48 | be moved into OpenOMCI if there are any very common settings/configs to do |
| 49 | for any profile that may be provided in the v2.0 release |
| 50 | |
| 51 | Currently, the only service tech profiles expected by v2.0 will be for AT&T |
| 52 | residential data service and DT residential data service. |
| 53 | """ |
| 54 | task_priority = Task.DEFAULT_PRIORITY + 10 |
| 55 | default_tpid = 0x8100 |
| 56 | default_gem_payload = 1518 |
| 57 | |
| 58 | name = "ADTRAN MIB Download Task" |
| 59 | |
| 60 | def __init__(self, omci_agent, handler): |
| 61 | """ |
| 62 | Class initialization |
| 63 | |
| 64 | :param omci_agent: (OpenOMCIAgent) OMCI Adapter agent |
| 65 | :param handler: (OnuHandler) ONU Device Handler |
| 66 | """ |
| 67 | super(AdtnMibDownloadTask, self).__init__(AdtnMibDownloadTask.name, |
| 68 | omci_agent, |
| 69 | handler.device_id, |
| 70 | priority=AdtnMibDownloadTask.task_priority, |
| 71 | exclusive=False) |
| 72 | self._handler = handler |
| 73 | self._onu_device = omci_agent.get_device(handler.device_id) |
| 74 | self._local_deferred = None |
| 75 | |
| 76 | # Frame size |
| 77 | self._max_gem_payload = AdtnMibDownloadTask.default_gem_payload |
| 78 | |
| 79 | # Port numbers |
| 80 | self._pon_port_num = 0 |
| 81 | self._uni_port_num = 0 # TODO Both port numbers are the same, is this correct? See MacBridgePortConfigurationDataFrame |
| 82 | |
| 83 | self._pon = handler.pon_port() |
| 84 | self._vlan_tcis_1 = self._handler.vlan_tcis_1 |
| 85 | |
| 86 | # Entity IDs. IDs with values can probably be most anything for most ONUs, |
| 87 | # IDs set to None are discovered/set |
| 88 | # |
| 89 | # TODO: Probably need to store many of these in the appropriate object (UNI, PON,...) |
| 90 | # |
| 91 | self._ieee_mapper_service_profile_entity_id = self._pon.ieee_mapper_service_profile_entity_id |
| 92 | self._mac_bridge_port_ani_entity_id = self._pon.mac_bridge_port_ani_entity_id |
| 93 | self._gal_enet_profile_entity_id = self._handler.gal_enet_profile_entity_id |
| 94 | |
| 95 | # Next to are specific TODO: UNI lookups here or uni specific install !!! |
| 96 | self._ethernet_uni_entity_id = self._handler.uni_ports[0].entity_id |
| 97 | self._mac_bridge_service_profile_entity_id = \ |
| 98 | self._handler.mac_bridge_service_profile_entity_id |
| 99 | |
| 100 | def cancel_deferred(self): |
| 101 | super(AdtnMibDownloadTask, self).cancel_deferred() |
| 102 | |
| 103 | d, self._local_deferred = self._local_deferred, None |
| 104 | try: |
| 105 | if d is not None and not d.called: |
| 106 | d.cancel() |
| 107 | except: |
| 108 | pass |
| 109 | |
| 110 | def start(self): |
| 111 | """ |
| 112 | Start the MIB Download |
| 113 | """ |
| 114 | super(AdtnMibDownloadTask, self).start() |
| 115 | self._local_deferred = reactor.callLater(0, self.perform_mib_download) |
| 116 | |
| 117 | def stop(self): |
| 118 | """ |
| 119 | Shutdown MIB Synchronization tasks |
| 120 | """ |
| 121 | self.log.debug('stopping') |
| 122 | |
| 123 | self.cancel_deferred() |
| 124 | super(AdtnMibDownloadTask, self).stop() |
| 125 | |
| 126 | def check_status_and_state(self, results, operation=''): |
| 127 | """ |
| 128 | Check the results of an OMCI response. An exception is thrown |
| 129 | if the task was cancelled or an error was detected. |
| 130 | |
| 131 | :param results: (OmciFrame) OMCI Response frame |
| 132 | :param operation: (str) what operation was being performed |
| 133 | :return: True if successful, False if the entity existed (already created) |
| 134 | """ |
| 135 | omci_msg = results.fields['omci_message'].fields |
| 136 | status = omci_msg['success_code'] |
| 137 | error_mask = omci_msg.get('parameter_error_attributes_mask', 'n/a') |
| 138 | failed_mask = omci_msg.get('failed_attributes_mask', 'n/a') |
| 139 | unsupported_mask = omci_msg.get('unsupported_attributes_mask', 'n/a') |
| 140 | |
| 141 | self.log.debug(operation, status=status, error_mask=error_mask, |
| 142 | failed_mask=failed_mask, unsupported_mask=unsupported_mask) |
| 143 | |
| 144 | if status == RC.Success: |
| 145 | self.strobe_watchdog() |
| 146 | return True |
| 147 | |
| 148 | elif status == RC.InstanceExists: |
| 149 | return False |
| 150 | |
| 151 | raise MibDownloadFailure('{} failed with a status of {}, error_mask: {}, failed_mask: {}, unsupported_mask: {}' |
| 152 | .format(operation, status, error_mask, failed_mask, unsupported_mask)) |
| 153 | |
| 154 | @inlineCallbacks |
| 155 | def perform_mib_download(self): |
| 156 | """ |
| 157 | Send the commands to minimally configure the PON, Bridge, and |
| 158 | UNI ports for this device. The application of any service flows |
| 159 | and other characteristics are done once resources (gem-ports, tconts, ...) |
| 160 | have been defined. |
| 161 | """ |
| 162 | self.log.info('perform-initial-download') |
| 163 | |
| 164 | device = self._handler.adapter_agent.get_device(self.device_id) |
| 165 | |
| 166 | def resources_available(): |
| 167 | return len(self._handler.uni_ports) > 0 |
| 168 | |
| 169 | if self._handler.enabled and resources_available(): |
| 170 | device.reason = 'Performing Initial OMCI Download' |
| 171 | self._handler.adapter_agent.update_device(device) |
| 172 | |
| 173 | try: |
| 174 | # Lock the UNI ports to prevent any alarms during initial configuration |
| 175 | # of the ONU |
| 176 | for uni_port in self._handler.uni_ports: |
| 177 | self.strobe_watchdog() |
| 178 | |
| 179 | yield self.enable_uni(uni_port, True) |
| 180 | |
| 181 | # Provision the initial bridge configuration |
| 182 | yield self.perform_initial_bridge_setup(uni_port) |
| 183 | |
| 184 | # And re-enable the UNIs if needed |
| 185 | yield self.enable_uni(uni_port, False) |
| 186 | |
| 187 | # If here, we are done with the generic MIB download |
| 188 | device = self._handler.adapter_agent.get_device(self.device_id) |
| 189 | |
| 190 | device.reason = 'Initial OMCI Download Complete' |
| 191 | self._handler.adapter_agent.update_device(device) |
| 192 | self.deferred.callback('MIB Download - success') |
| 193 | |
| 194 | except TimeoutError as e: |
| 195 | self.deferred.errback(failure.Failure(e)) |
| 196 | |
| 197 | else: |
| 198 | # TODO: Provide better error reason, what was missing... |
| 199 | e = MibResourcesFailure('ONU is not enabled') |
| 200 | self.deferred.errback(failure.Failure(e)) |
| 201 | |
| 202 | @inlineCallbacks |
| 203 | def perform_initial_bridge_setup(self, uni_port): |
| 204 | omci_cc = self._onu_device.omci_cc |
| 205 | frame = None |
| 206 | |
| 207 | try: |
| 208 | ################################################################################ |
| 209 | # Common - PON and/or UNI # |
| 210 | ################################################################################ |
| 211 | # MAC Bridge Service Profile |
| 212 | # |
| 213 | # EntityID will be referenced by: |
| 214 | # - MAC Bridge Port Configuration Data (PON & UNI) |
| 215 | # References: |
| 216 | # - Nothing |
| 217 | attributes = { |
| 218 | 'spanning_tree_ind': False, |
| 219 | 'learning_ind': True |
| 220 | } |
| 221 | frame = MacBridgeServiceProfileFrame( |
| 222 | self._mac_bridge_service_profile_entity_id, |
| 223 | attributes |
| 224 | ).create() |
| 225 | results = yield omci_cc.send(frame) |
| 226 | self.check_status_and_state(results, 'create-mac-bridge-service-profile') |
| 227 | |
| 228 | ################################################################################ |
| 229 | # PON Specific # |
| 230 | ################################################################################ |
| 231 | # IEEE 802.1 Mapper Service config - Once per PON |
| 232 | # |
| 233 | # EntityID will be referenced by: |
| 234 | # - MAC Bridge Port Configuration Data for the PON port |
| 235 | # References: |
| 236 | # - Nothing at this point. When a GEM port is created, this entity will |
| 237 | # be updated to reference the GEM Interworking TP |
| 238 | |
| 239 | frame = Ieee8021pMapperServiceProfileFrame(self._ieee_mapper_service_profile_entity_id + |
| 240 | uni_port.mac_bridge_port_num).create() |
| 241 | results = yield omci_cc.send(frame) |
| 242 | self.check_status_and_state(results, 'create-8021p-mapper-service-profile') |
| 243 | |
| 244 | ################################################################################ |
| 245 | # Create MAC Bridge Port Configuration Data for the PON port via IEEE 802.1 |
| 246 | # mapper service. Upon receipt by the ONU, the ONU will create an instance |
| 247 | # of the following before returning the response. |
| 248 | # |
| 249 | # - MAC bridge port designation data |
| 250 | # - MAC bridge port filter table data |
| 251 | # - MAC bridge port bridge table data |
| 252 | # |
| 253 | # EntityID will be referenced by: |
| 254 | # - Implicitly by the VLAN tagging filter data |
| 255 | # References: |
| 256 | # - MAC Bridge Service Profile (the bridge) |
| 257 | # - IEEE 802.1p mapper service profile for PON port |
| 258 | |
| 259 | frame = MacBridgePortConfigurationDataFrame( |
| 260 | self._mac_bridge_port_ani_entity_id, # Entity ID |
| 261 | bridge_id_pointer=self._mac_bridge_service_profile_entity_id, # Bridge Entity ID |
| 262 | # TODO: The PORT number for this port and the UNI port are the same. Correct? |
| 263 | port_num=self._pon_port_num, # Port ID |
| 264 | tp_type=3, # TP Type (IEEE 802.1p mapper service) |
| 265 | tp_pointer=self._ieee_mapper_service_profile_entity_id + |
| 266 | uni_port.mac_bridge_port_num # TP ID, 8021p mapper ID |
| 267 | ).create() |
| 268 | results = yield omci_cc.send(frame) |
| 269 | self.check_status_and_state(results, 'create-mac-bridge-port-config-data-part-1') |
| 270 | |
| 271 | ############################################################# |
| 272 | # VLAN Tagging Filter config |
| 273 | # |
| 274 | # EntityID will be referenced by: |
| 275 | # - Nothing |
| 276 | # References: |
| 277 | # - MacBridgePortConfigurationData for the ANI/PON side |
| 278 | # |
| 279 | # Set anything, this request will not be used when using Extended Vlan |
| 280 | |
| 281 | frame = VlanTaggingFilterDataFrame( |
| 282 | self._mac_bridge_port_ani_entity_id, # Entity ID |
| 283 | vlan_tcis=[self._vlan_tcis_1], # VLAN IDs |
| 284 | forward_operation=0x00 |
| 285 | ).create() |
| 286 | results = yield omci_cc.send(frame) |
| 287 | self.check_status_and_state(results, 'create-vlan-tagging-filter-data') |
| 288 | |
| 289 | ############################################################# |
| 290 | # Create GalEthernetProfile - Once per ONU/PON interface |
| 291 | # |
| 292 | # EntityID will be referenced by: |
| 293 | # - GemInterworkingTp |
| 294 | # References: |
| 295 | # - Nothing |
| 296 | |
| 297 | frame = GalEthernetProfileFrame( |
| 298 | self._gal_enet_profile_entity_id, |
| 299 | max_gem_payload_size=self._max_gem_payload |
| 300 | ).create() |
| 301 | results = yield omci_cc.send(frame) |
| 302 | self.check_status_and_state(results, 'create-gal-ethernet-profile') |
| 303 | |
| 304 | ################################################## |
| 305 | # UNI Specific # |
| 306 | ################################################## |
| 307 | # MAC Bridge Port config |
| 308 | # This configuration is for Ethernet UNI |
| 309 | # |
| 310 | # EntityID will be referenced by: |
| 311 | # - Nothing |
| 312 | # References: |
| 313 | # - MAC Bridge Service Profile (the bridge) |
| 314 | # - PPTP Ethernet UNI |
| 315 | |
| 316 | frame = MacBridgePortConfigurationDataFrame( |
| 317 | 0x000, # Entity ID - This is read-only/set-by-create !!! |
| 318 | bridge_id_pointer=self._mac_bridge_service_profile_entity_id, # Bridge Entity ID |
| 319 | port_num=self._uni_port_num, # Port ID |
| 320 | tp_type=1, # PPTP Ethernet UNI |
| 321 | tp_pointer=self._ethernet_uni_entity_id # TP ID, 8021p mapper Id |
| 322 | ).create() |
| 323 | results = yield omci_cc.send(frame) |
| 324 | self.check_status_and_state(results, 'create-mac-bridge-port-config-data-part-2') |
| 325 | |
| 326 | except TimeoutError as _e: |
| 327 | self.log.warn('rx-timeout-download', frame=hexlify(frame)) |
| 328 | raise |
| 329 | |
| 330 | except Exception as e: |
| 331 | self.log.exception('omci-setup-1', e=e) |
| 332 | raise |
| 333 | |
| 334 | returnValue(None) |
| 335 | |
| 336 | @inlineCallbacks |
| 337 | def enable_uni(self, uni, force_lock): |
| 338 | """ |
| 339 | Lock or unlock one or more UNI ports |
| 340 | |
| 341 | :param unis: (list) of UNI objects |
| 342 | :param force_lock: (boolean) If True, force lock regardless of enabled state |
| 343 | """ |
| 344 | omci_cc = self._onu_device.omci_cc |
| 345 | |
| 346 | ################################################################## |
| 347 | # Lock/Unlock UNI - 0 to Unlock, 1 to lock |
| 348 | # |
| 349 | # EntityID is referenced by: |
| 350 | # - MAC bridge port configuration data for the UNI side |
| 351 | # References: |
| 352 | # - Nothing |
| 353 | try: |
| 354 | state = 1 if force_lock or not uni.enabled else 0 |
| 355 | |
| 356 | frame = PptpEthernetUniFrame(uni.entity_id, |
| 357 | attributes=dict(administrative_state=state)).set() |
| 358 | |
| 359 | results = yield omci_cc.send(frame) |
| 360 | self.check_status_and_state(results, 'set-pptp-ethernet-uni-lock-restore') |
| 361 | |
| 362 | except TimeoutError: |
| 363 | self.log.warn('rx-timeout-uni-enable', uni_port=uni) |
| 364 | raise |
| 365 | |
| 366 | except Exception as e: |
| 367 | self.log.exception('omci-failure', e=e) |
| 368 | raise |
| 369 | |
| 370 | returnValue(None) |