[VOL-1349] EPON OLT adapter (package B)
Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/internal/pkg/core/l2oam/msg_toam_get.go b/internal/pkg/core/l2oam/msg_toam_get.go
new file mode 100644
index 0000000..f831aa0
--- /dev/null
+++ b/internal/pkg/core/l2oam/msg_toam_get.go
@@ -0,0 +1,185 @@
+/*
+ * 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"
+)
+
+// TOAMGetRequest is a structure for GET request of TOAM message
+type TOAMGetRequest 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
+ VdBranch uint8
+ VdLeaf uint16
+ EndBranch uint8
+}
+
+// String returns the string expression of TOAMGetRequest
+func (d *TOAMGetRequest) 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, CTBranch:%02x, CTType:%04x, CTLength:%02x, CTInstance:%08x", message, d.CTBranch, d.CTType, d.CTLength, d.CTInstance)
+ 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 TOAMGetRequest
+func (d *TOAMGetRequest) Len() int {
+ return 29
+}
+
+// LayerType returns the ethernet type of TOAMGetRequest
+func (d *TOAMGetRequest) LayerType() gopacket.LayerType { return layers.LayerTypeEthernet }
+
+// SerializeTo serializes a data structure to byte arrays
+func (d *TOAMGetRequest) 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.VdBranch)
+ i++
+ binary.BigEndian.PutUint16(data[i:i+2], d.VdLeaf)
+ i += 2
+ data[i] = byte(d.EndBranch)
+
+ return nil
+}
+
+// TOAMGetResponse is a structure for GET response of TOAM message
+type TOAMGetResponse 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
+}
+
+// String returns the string expression of TOAMGetResponse
+func (d *TOAMGetResponse) 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, CTBranch:%02x, CTType:%04x, CTLength:%02x, CTInstance:%08x", message, d.CTBranch, d.CTType, d.CTLength, d.CTInstance)
+ 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)
+ return message
+}
+
+// Len returns the length of TOAMGetResponse
+func (d *TOAMGetResponse) Len() int {
+ return 28
+}
+
+// LayerType returns the ethernet type of TOAMGetResponse
+func (d *TOAMGetResponse) LayerType() gopacket.LayerType { return layers.LayerTypeEthernet }
+
+// Decode decodes byte arrays to a data structure
+func (d *TOAMGetResponse) Decode(data []byte) {
+ 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]
+}