| /* |
| * Copyright 2020-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 l2oam |
| |
| import ( |
| "encoding/binary" |
| "encoding/hex" |
| "fmt" |
| |
| "github.com/google/gopacket" |
| "github.com/google/gopacket/layers" |
| ) |
| |
| // GetMpcpLLIdReq is a structure for "MPCP/LLID" message |
| type GetMpcpLLIdReq struct { |
| layers.BaseLayer |
| Opcode uint8 |
| Flags uint16 |
| OAMPDUCode uint8 |
| OUId []byte // Organizationally Unique Identifier: 2a:ea:15 (Tibit Communications) |
| TOMIOpcode uint8 |
| OCBranch uint8 |
| OCType uint16 |
| OCLength uint8 |
| OCInstance uint32 |
| VdBranch uint8 |
| VdLeaf uint16 |
| EndBranch uint8 |
| } |
| |
| // GenerateGetMpcpLLId generates "MPCP/LLID" message |
| func GenerateGetMpcpLLId(oc *TomiObjectContext) gopacket.SerializableLayer { |
| tibitData := &GetMpcpLLIdReq{ |
| // IEEE 1904.2 |
| Opcode: 0x03, |
| // OMI Protocol |
| Flags: 0x0050, |
| OAMPDUCode: 0xfe, |
| OUId: []byte{0x2a, 0xea, 0x15}, |
| // TiBiT OLT Management Interface |
| TOMIOpcode: 0x01, |
| // Object Context |
| OCBranch: oc.Branch, |
| OCType: oc.Type, |
| OCLength: oc.Length, |
| OCInstance: oc.Instance, |
| // Vd |
| VdBranch: 0xcc, |
| VdLeaf: 0x0007, |
| // End |
| EndBranch: 0, |
| } |
| return tibitData |
| } |
| |
| // String returns the string expression of GetMpcpLLIdReq |
| func (d *GetMpcpLLIdReq) String() string { |
| message := fmt.Sprintf("Opcode:%02x, Flags:%04x, OAMPDUCode:%02x, OUId:%v", d.Opcode, d.Flags, d.OAMPDUCode, hex.EncodeToString(d.OUId)) |
| message = fmt.Sprintf("%s, TOMIOpcode:%02x", message, d.TOMIOpcode) |
| message = fmt.Sprintf("%s, OCBranch:%02x, OCType:%04x, OCLength:%02x, OCInstance:%08x", message, d.OCBranch, d.OCType, d.OCLength, d.OCInstance) |
| message = fmt.Sprintf("%s, VdBranch:%02x, VdLeaf:%04x, EndBranch:%02x", message, d.VdBranch, d.VdLeaf, d.EndBranch) |
| return message |
| } |
| |
| // Len returns the length of GetMpcpLLIdReq |
| func (d *GetMpcpLLIdReq) Len() int { |
| return 21 |
| } |
| |
| // LayerType returns the ethernet type of GetMpcpLLIdReq |
| func (d *GetMpcpLLIdReq) LayerType() gopacket.LayerType { return layers.LayerTypeEthernet } |
| |
| // SerializeTo serializes a data structure to byte arrays |
| func (d *GetMpcpLLIdReq) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { |
| plen := int(d.Len()) |
| data, err := b.PrependBytes(plen) |
| if err != nil { |
| return err |
| } |
| |
| i := 0 |
| data[i] = byte(d.Opcode) |
| i++ |
| binary.BigEndian.PutUint16(data[i:i+2], d.Flags) |
| i += 2 |
| data[i] = byte(d.OAMPDUCode) |
| i++ |
| copy(data[i:i+len(d.OUId)], d.OUId) |
| i += len(d.OUId) |
| data[i] = byte(d.TOMIOpcode) |
| i++ |
| data[i] = byte(d.OCBranch) |
| i++ |
| binary.BigEndian.PutUint16(data[i:i+2], d.OCType) |
| i += 2 |
| data[i] = byte(d.OCLength) |
| i++ |
| binary.BigEndian.PutUint32(data[i:i+4], d.OCInstance) |
| i += 4 |
| data[i] = byte(d.VdBranch) |
| i++ |
| binary.BigEndian.PutUint16(data[i:i+2], d.VdLeaf) |
| i += 2 |
| data[i] = byte(d.EndBranch) |
| |
| return nil |
| } |
| |
| // GetMpcpLLIdRes is a structure for a response of "MPCP/LLID" message |
| type GetMpcpLLIdRes struct { |
| layers.BaseLayer |
| Opcode uint8 |
| Flags uint16 |
| OAMPDUCode uint8 |
| OUId []byte // Organizationally Unique Identifier: 2a:ea:15 (Tibit Communications) |
| TOMIOpcode uint8 |
| OCBranch uint8 |
| OCType uint16 |
| OCLength uint8 |
| OCInstance uint32 |
| VcBranch uint8 |
| VcLeaf uint16 |
| VcLength uint8 |
| EcLength uint8 |
| EcValue []byte |
| EndBranch uint8 |
| } |
| |
| // String returns the string expression of GetMpcpLLIdRes |
| func (d *GetMpcpLLIdRes) String() string { |
| message := fmt.Sprintf("Opcode:%02x, Flags:%04x, OAMPDUCode:%02x, OUId:%v", d.Opcode, d.Flags, d.OAMPDUCode, hex.EncodeToString(d.OUId)) |
| message = fmt.Sprintf("%s, TOMIOpcode:%02x", message, d.TOMIOpcode) |
| message = fmt.Sprintf("%s, OCBranch:%02x, OCType:%04x, OCLength:%02x, OCInstance:%08x", message, d.OCBranch, d.OCType, d.OCLength, d.OCInstance) |
| message = fmt.Sprintf("%s, VcBranch:%02x, VcLeaf:%04x, VcLength:%02x", message, d.VcBranch, d.VcLeaf, d.VcLength) |
| message = fmt.Sprintf("%s, EcLength:%02x, EcValue:%v, EndBranch:%02x", message, d.EcLength, hex.EncodeToString(d.EcValue), d.EndBranch) |
| return message |
| } |
| |
| // Len returns the length of GetMpcpLLIdRes |
| func (d *GetMpcpLLIdRes) Len() int { |
| return 20 + int(d.VcLength) + 1 |
| } |
| |
| // LayerType returns the ethernet type of GetMpcpLLIdRes |
| func (d *GetMpcpLLIdRes) LayerType() gopacket.LayerType { return layers.LayerTypeEthernet } |
| |
| // Decode decodes byte arrays to a data structure |
| func (d *GetMpcpLLIdRes) Decode(data []byte) error { |
| i := 0 |
| d.Opcode = data[i] |
| i++ |
| d.Flags = binary.BigEndian.Uint16(data[i : i+2]) |
| i += 2 |
| d.OAMPDUCode = data[i] |
| i++ |
| d.OUId = data[i : i+3] |
| i += len(d.OUId) |
| d.TOMIOpcode = data[i] |
| i++ |
| d.OCBranch = data[i] |
| i++ |
| d.OCType = binary.BigEndian.Uint16(data[i : i+2]) |
| i += 2 |
| d.OCLength = data[i] |
| i++ |
| d.OCInstance = binary.BigEndian.Uint32(data[i : i+4]) |
| i += 4 |
| d.VcBranch = data[i] |
| i++ |
| d.VcLeaf = binary.BigEndian.Uint16(data[i : i+2]) |
| i += 2 |
| d.VcLength = data[i] |
| i++ |
| d.EcLength = data[i] |
| i++ |
| d.EcValue = data[i : i+int(d.EcLength)] |
| i += int(d.EcLength) |
| d.EndBranch = data[i] |
| |
| return nil |
| } |
| |
| // GetLLID returns a LLID |
| func (d *GetMpcpLLIdRes) GetLLID() uint16 { |
| return binary.BigEndian.Uint16(d.EcValue) |
| } |