[VOL-1349] EPON OLT adapter (package B)
Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/internal/pkg/core/l2oam/msg_get_mac_address.go b/internal/pkg/core/l2oam/msg_get_mac_address.go
new file mode 100644
index 0000000..e1df063
--- /dev/null
+++ b/internal/pkg/core/l2oam/msg_get_mac_address.go
@@ -0,0 +1,97 @@
+/*
+ * 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, ":")
+}