| /* |
| * 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" |
| ) |
| |
| const ( |
| ActionTypeProtocolFilter = 1 |
| |
| ActionTypeTrafficProfile = 2 |
| ) |
| |
| // GenerateGenericActionCreate generates "Generic/Action Create" message |
| func GenerateGenericActionCreate(actionType int) gopacket.SerializableLayer { |
| tibitData := &setGenericActionCreateReq{ |
| // IEEE 1904.2 |
| Opcode: 0x03, |
| // OMI Protocol |
| Flags: 0x0050, |
| OAMPDUCode: 0xfe, |
| OUId: []byte{0x2a, 0xea, 0x15}, |
| // TiBiT OLT Management Interface |
| TOMIOpcode: 0x03, |
| // Correlation Tag |
| CTBranch: 0x0c, |
| CTType: 0x0c7a, |
| CTLength: 4, |
| CTInstance: getOltInstance(), |
| // Object Context |
| OCBranch: 0x0c, |
| OCType: 0x0dce, |
| OCLength: 4, |
| OCInstance: 00000000, |
| //Vc |
| VcBranch: 0x6e, |
| VcLeaf: 0x7001, |
| VcLength: 4, |
| //OT |
| OT: []OTGenericActionCreate{{OTLength: 3, OTValue: getObjectType(actionType)}}, |
| // End |
| EndBranch: 0, |
| } |
| |
| return tibitData |
| } |
| |
| func getObjectType(actionType int) []byte { |
| switch actionType { |
| case ActionTypeProtocolFilter: |
| return []byte{0x0c, 0x0c, 0xff} |
| case ActionTypeTrafficProfile: |
| return []byte{0x0c, 0x07, 0x0f} |
| default: |
| return []byte{0x00, 0x00, 0x00} |
| } |
| } |
| |
| type setGenericActionCreateReq struct { |
| layers.BaseLayer |
| Opcode uint8 |
| Flags uint16 |
| OAMPDUCode uint8 |
| OUId []byte // Organizationally Unique Identifier: 2a:ea:15 (Tibit Communications) |
| TOMIOpcode uint8 |
| CTBranch uint8 |
| CTType uint16 |
| CTLength uint8 |
| CTInstance uint32 |
| OCBranch uint8 |
| OCType uint16 |
| OCLength uint8 |
| OCInstance uint32 |
| VcBranch uint8 |
| VcLeaf uint16 |
| VcLength uint8 |
| OT []OTGenericActionCreate |
| EndBranch uint8 |
| } |
| |
| // OTGenericActionCreate is a structure for "Object Type" |
| type OTGenericActionCreate struct { |
| OTLength uint8 |
| OTValue []byte |
| } |
| |
| // String returns the string expression of setGenericActionCreateReq |
| func (d *setGenericActionCreateReq) String() string { |
| message := fmt.Sprintf("Opcode:%x, Flags:%x, OAMPDUCode:%x, OUId:%v", d.Opcode, d.Flags, d.OAMPDUCode, hex.EncodeToString(d.OUId)) |
| message = fmt.Sprintf("%s, TOMIOpcode:%x", message, d.TOMIOpcode) |
| message = fmt.Sprintf("%s, CTBranch:%x, CTType:%x, CTLength:%x, CTInstance:%x", message, d.CTBranch, d.CTType, d.CTLength, d.CTInstance) |
| message = fmt.Sprintf("%s, OCBranch:%x, OCType:%x, OCLength:%x, OCInstance:%x", message, d.OCBranch, d.OCType, d.OCLength, d.OCInstance) |
| message = fmt.Sprintf("%s, VcBranch:%x, VcLeaf:%x, VcLength:%x", message, d.VcBranch, d.VcLeaf, d.VcLength) |
| for _, ot := range d.OT { |
| message = fmt.Sprintf("%s, OTLength:%x, OTValue:%v", message, ot.OTLength, hex.EncodeToString(ot.OTValue)) |
| } |
| message = fmt.Sprintf("%s, EndBranch:%x", message, d.EndBranch) |
| return message |
| } |
| |
| // Len returns the length of setGenericActionCreateReq |
| func (d *setGenericActionCreateReq) Len() int { |
| return 21 + int(d.CTLength) + int(d.OCLength) + int(d.VcLength) |
| |
| } |
| |
| // LayerType returns the ethernet type of setGenericActionCreateReq |
| func (d *setGenericActionCreateReq) LayerType() gopacket.LayerType { return layers.LayerTypeEthernet } |
| |
| // SerializeTo serializes a data structure to byte arrays |
| func (d *setGenericActionCreateReq) 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.CTBranch) |
| i++ |
| binary.BigEndian.PutUint16(data[i:i+2], d.CTType) |
| i += 2 |
| data[i] = byte(d.CTLength) |
| i++ |
| binary.BigEndian.PutUint32(data[i:i+4], d.CTInstance) |
| i += 4 |
| 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.VcBranch) |
| i++ |
| binary.BigEndian.PutUint16(data[i:i+2], d.VcLeaf) |
| i += 2 |
| data[i] = byte(d.VcLength) |
| i++ |
| for _, ot := range d.OT { |
| nextIndex := serializeObjectType(&ot, data, i) |
| i = nextIndex |
| } |
| |
| data[i] = byte(d.EndBranch) |
| |
| return nil |
| |
| } |
| |
| func serializeObjectType(ot *OTGenericActionCreate, data []byte, startIndex int) int { |
| i := startIndex |
| data[i] = ot.OTLength |
| i++ |
| copy(data[i:i+int(ot.OTLength)], ot.OTValue) |
| i += int(ot.OTLength) |
| |
| return i |
| |
| } |
| |
| // SetGenericActionCreateRes is a structure for a response of "Generic/Action Create" |
| type SetGenericActionCreateRes struct { |
| layers.BaseLayer |
| Opcode uint8 |
| Flags uint16 |
| OAMPDUCode uint8 |
| OUId []byte // Organizationally Unique Identifier: 2a:ea:15 (Tibit Communications) |
| TOMIOpcode uint8 |
| CTBranch uint8 |
| CTType uint16 |
| CTLength uint8 |
| CTInstance uint32 |
| OCBranch uint8 |
| OCType uint16 |
| OCLength uint8 |
| OCInstance uint32 |
| VcBranch uint8 |
| VcLeaf uint16 |
| VcLength uint8 |
| |
| ObOCLength uint8 |
| ObOCBranch uint8 |
| ObOCType uint16 |
| ObOCLength2 uint8 |
| ObOCInstance []byte |
| |
| EndBranch uint8 |
| } |
| |
| // ObOC is a structure for "Object OC" |
| type ObOC struct { |
| ObOCLength uint8 |
| ObOCBranch uint8 |
| ObOCType uint16 |
| ObOCLength2 uint8 |
| ObOCInstance []byte |
| } |
| |
| // String returns the string expression of SetGenericActionCreateRes |
| func (d *SetGenericActionCreateRes) String() string { |
| message := fmt.Sprintf("Opcode:%x, Flags:%x, OAMPDUCode:%x, OUId:%v", d.Opcode, d.Flags, d.OAMPDUCode, hex.EncodeToString(d.OUId)) |
| message = fmt.Sprintf("%s, TOMIOpcode:%x", message, d.TOMIOpcode) |
| message = fmt.Sprintf("%s, CTBranch:%x, CTType:%x, CTLength:%x, CTInstance:%x", message, d.CTBranch, d.CTType, d.CTLength, d.CTInstance) |
| message = fmt.Sprintf("%s, OCBranch:%x, OCType:%x, OCLength:%x, OCInstance:%x", message, d.OCBranch, d.OCType, d.OCLength, d.OCInstance) |
| message = fmt.Sprintf("%s, VcBranch:%x, VcLeaf:%x, VcLength:%x", message, d.VcBranch, d.VcLeaf, d.VcLength) |
| message = fmt.Sprintf("%s, ObOCLength:%x, ObOCBranch:%x, ObOCType:%x, ObOCLength2:%x, ObOCInstance:%x, EndBranch:%x", |
| message, d.ObOCLength, d.ObOCBranch, d.ObOCType, d.ObOCLength2, d.ObOCInstance, d.EndBranch) |
| return message |
| } |
| |
| // Decode decodes byte arrays to a data structure |
| func (d *SetGenericActionCreateRes) 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.CTBranch = data[i] |
| i++ |
| d.CTType = binary.BigEndian.Uint16(data[i : i+2]) |
| i += 2 |
| d.CTLength = data[i] |
| i++ |
| d.CTInstance = binary.BigEndian.Uint32(data[i : i+4]) |
| i += 4 |
| 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.ObOCLength = data[i] |
| i++ |
| d.ObOCBranch = data[i] |
| i++ |
| d.ObOCType = binary.BigEndian.Uint16(data[i : i+2]) |
| i = i + 2 |
| d.ObOCLength2 = data[i] |
| i++ |
| d.ObOCInstance = data[i : i+int(d.ObOCLength2)] |
| i = i + int(d.ObOCLength2) |
| |
| d.EndBranch = data[i] |
| |
| return nil |
| } |
| |
| // GetTrafficProfile returns the traffic profile of this message |
| func (d *SetGenericActionCreateRes) GetTrafficProfile() []byte { |
| return d.ObOCInstance |
| } |