| /* |
| * Copyright 2018-present Open Networking Foundation |
| |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package core |
| |
| import ( |
| "fmt" |
| log "github.com/sirupsen/logrus" |
| ) |
| |
| var omciCh = make(chan OmciChMessage, 4096) |
| |
| func GetChannel() chan OmciChMessage { |
| return omciCh |
| } |
| |
| func OmciSim(oltId int, intfId uint32, onuId uint32, request []byte) ([]byte, error) { |
| var resp []byte |
| |
| transactionId, deviceId, msgType, class, instance, content, err := ParsePkt(request) |
| if err != nil { |
| log.WithFields(log.Fields{ |
| "IntfId": intfId, |
| "OnuId": onuId, |
| }).Errorf("Cannot parse OMCI msg") |
| return resp, &OmciError{"Cannot parse OMCI msg"} |
| } |
| |
| log.WithFields(log.Fields{ |
| "IntfId": intfId, |
| "OnuId": onuId, |
| "TransactionId": transactionId, |
| "MessageType": msgType.PrettyPrint(), |
| "MeClass": class, |
| "MeInstance": instance, |
| //"Conent": content, |
| "omciMsg": fmt.Sprintf("%x", content), |
| }).Tracef("Processing OMCI packet") |
| |
| key := OnuKey{OltId: oltId, IntfId: intfId, OnuId: onuId} |
| OnuOmciStateMapLock.Lock() |
| if _, ok := OnuOmciStateMap[key]; !ok { |
| OnuOmciStateMap[key] = NewOnuOmciState() |
| } |
| OnuOmciStateMapLock.Unlock() |
| |
| if _, ok := Handlers[msgType]; !ok { |
| log.WithFields(log.Fields{ |
| "IntfId": intfId, |
| "OnuId": onuId, |
| "msgType": msgType, |
| }).Errorf("Ignoring omci msg (msgType %d not handled)", msgType) |
| return resp, &OmciError{"Unimplemented omci msg"} |
| } |
| |
| resp, err = Handlers[msgType](class, content, key) |
| if err != nil { |
| log.WithFields(log.Fields{ |
| "IntfId": intfId, |
| "OnuId": onuId, |
| "msgType": msgType, |
| }).Errorf("Unable to send a successful response, error: %s", err) |
| return resp, nil |
| } |
| |
| // In the OMCI message, first 2-bytes is the Transaction Correlation ID |
| resp[0] = byte(transactionId >> 8) |
| resp[1] = byte(transactionId & 0xFF) |
| resp[2] = 0x2<<4 | byte(msgType) // Upper nibble 0x2 is fixed (0010), Lower nibbles defines the msg type (i.e., mib-upload, mib-upload-next, etc) |
| resp[3] = deviceId |
| |
| // for create, get and set |
| if ((msgType & 0xFF) != MibUploadNext) && ((msgType & 0xFF) != MibReset) && ((msgType & 0xFF) != MibUpload) { |
| // Common fields for create, get, and set |
| resp[4] = byte(class >> 8) |
| resp[5] = byte(class & 0xFF) |
| resp[6] = byte(instance >> 8) |
| resp[7] = byte(instance & 0xFF) |
| resp[8] = 0 // Result: Command Processed Successfully |
| |
| // Hardcoding class specific values for Get |
| if (class == 0x82) && ((msgType & 0x0F) == Get) { |
| resp[9] = 0 |
| resp[10] = 0x78 |
| |
| } else if (class == 0x2F) && ((msgType & 0x0F) == Get) { |
| resp[9] = 0x0F |
| resp[10] = 0xB8 |
| } else if (class == 0x138) && ((msgType & 0x0F) == Get) { |
| resp[9] = content[0] // 0xBE |
| resp[10] = 0x00 |
| } |
| } |
| |
| if (class == 11 && instance == 257 && msgType == Set) { |
| // This is a set on a PPTP instance 257 (lan port 1) |
| // Determine if its setting admin up or down and alarm appropriately |
| |
| // attrmask for what specifically sets/gets is 2 bytes |
| attrmask := content[0:2] |
| // actual content is the rest, as specified by attrmask. but for this case we are only interested in 1 byte |
| firstattr := content[2:3] |
| |
| // attribute bit 5 (admin state) in the PPTP is being set, its value is 1, lock |
| if (attrmask[0] == 0x08 && firstattr[0] == 0x01) { |
| log.Info("Send UNI Link Down Alarm on OMCI Sim channel") |
| |
| linkMsgDown := []byte{ |
| 0x00, 0x00, 0x10, 0x0a, 0x00, 0x0b, 0x01, 0x01, |
| 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} |
| |
| msg := OmciChMessage{ |
| Type: UniLinkDown, |
| Data: OmciChMessageData{ |
| OnuId: key.OnuId, |
| IntfId: key.IntfId, |
| }, |
| Packet: linkMsgDown, |
| } |
| omciCh <- msg |
| |
| OnuOmciStateMapLock.Lock() |
| if OnuOmciState, ok := OnuOmciStateMap[key]; ok { |
| OnuOmciState.state = LOCKED |
| } |
| OnuOmciStateMapLock.Unlock() |
| } |
| |
| // attribute bit 5 (admin state) in the PPTP is being set, its value is 0, unlock |
| if (attrmask[0] == 0x08 && firstattr[0] == 0x00) { |
| log.Info("Send UNI Link Up Alarm on OMCI Sim channel") |
| |
| linkMsgUp := []byte{ |
| 0x00, 0x00, 0x10, 0x0a, 0x00, 0x0b, 0x01, 0x01, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} |
| |
| msg := OmciChMessage{ |
| Type: UniLinkUp, |
| Data: OmciChMessageData{ |
| OnuId: key.OnuId, |
| IntfId: key.IntfId, |
| }, |
| Packet: linkMsgUp, |
| } |
| omciCh <- msg |
| |
| OnuOmciStateMapLock.Lock() |
| if OnuOmciState, ok := OnuOmciStateMap[key]; ok { |
| OnuOmciState.state = DONE |
| } |
| OnuOmciStateMapLock.Unlock() |
| } |
| } |
| |
| log.WithFields(log.Fields{ |
| "IntfId": intfId, |
| "OnuId": onuId, |
| "msgType": msgType.PrettyPrint(), |
| "omciMsg": fmt.Sprintf("%x", resp), |
| }).Tracef("OMCI-SIM Response") |
| |
| return resp, nil |
| } |