| /* |
| * 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/hex" |
| "fmt" |
| "strings" |
| |
| "github.com/google/gopacket" |
| ) |
| |
| // GenerateGetMacAddress generates "PON Port/MAC Address" message |
| func GenerateGetMacAddress() gopacket.SerializableLayer { |
| tibitData := &TOAMGetRequest{ |
| // IEEE 1904.2 |
| Opcode: 0x03, |
| // OAM Protocol |
| Flags: 0x0050, |
| OAMPDUCode: 0xfe, |
| OUId: []byte{0x2a, 0xea, 0x15}, |
| // TiBit OLT Management Interface |
| TOMIOpcode: 0x01, |
| // Correlation Tag |
| CTBranch: 0x0c, |
| CTType: 0x0c7a, |
| CTLength: 4, |
| CTInstance: getOltInstance(), |
| // Object Context |
| OCBranch: 0x0c, |
| OCType: 0x0007, |
| OCLength: 4, |
| OCInstance: 0x00000000, |
| // Vd |
| VdBranch: 0x07, |
| VdLeaf: 0x0004, |
| // End |
| EndBranch: 0x00, |
| } |
| return tibitData |
| } |
| |
| // GetMacAddressRes is a structure for a toam response |
| type GetMacAddressRes struct { |
| ComResp TOAMGetResponse |
| EcLength uint8 |
| EcValue []byte |
| EndBranch uint8 |
| } |
| |
| // String returns the string expression of GetMacAddressRes |
| func (d *GetMacAddressRes) String() string { |
| message := d.ComResp.String() |
| message = fmt.Sprintf("%s, EcLength:%x, EcValue:%v, EndBranch:%x", message, d.EcLength, hex.EncodeToString(d.EcValue), d.EndBranch) |
| return message |
| } |
| |
| // Len returns the length of GetMacAddressRes |
| func (d *GetMacAddressRes) Len() int { |
| return d.ComResp.Len() + int(d.ComResp.VcLength) + 1 |
| } |
| |
| // Decode decodes byte arrays to a data structure |
| func (d *GetMacAddressRes) Decode(data []byte) error { |
| d.ComResp.Decode(data) |
| i := d.ComResp.Len() |
| d.EcLength = data[i] |
| i++ |
| d.EcValue = data[i : i+int(d.EcLength)] |
| i = i + int(d.EcLength) |
| d.EndBranch = data[i] |
| |
| return nil |
| } |
| |
| // GetMacAddress returns a MAC address |
| func (d *GetMacAddressRes) GetMacAddress() string { |
| var buf []string |
| for _, b := range d.EcValue { |
| buf = append(buf, fmt.Sprintf("%02x", b)) |
| } |
| return strings.Join(buf, ":") |
| } |