[VOL-1349] EPON OLT adapter (package B)

Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/internal/pkg/core/l2oam/onu_msg_get_unip_info.go b/internal/pkg/core/l2oam/onu_msg_get_unip_info.go
new file mode 100644
index 0000000..f3efa24
--- /dev/null
+++ b/internal/pkg/core/l2oam/onu_msg_get_unip_info.go
@@ -0,0 +1,43 @@
+/*
+ * 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 (
+	"github.com/google/gopacket"
+)
+
+// GenerateGetUnipInfo generates UnipInfo message
+func GenerateGetUnipInfo(pkgType string) gopacket.SerializableLayer {
+	if pkgType == OnuPkgTypeB {
+		return &TibitFrame{
+			Data: []byte{
+				0x03, 0x00, 0x50, 0xfe, 0x90, 0x82, 0x60, 0x00,
+				0xca, 0xfe, 0x00, 0xb6, 0x00, 0x01, 0x04, 0x00,
+				0x00, 0x00, 0x00, 0xb7, 0x00, 0x41,
+			},
+		}
+	}
+	return &TibitFrame{
+		Data: []byte{
+			0x03, 0x00, 0x50, 0xfe, 0x00, 0x10, 0x00, 0x01,
+			0xd6, 0x00, 0x03, 0x01, 0x00, 0x07, 0x00, 0x20,
+			0x07, 0x00, 0x5d, 0x07, 0x00, 0x5a, 0x07, 0x00,
+			0x4f, 0x07, 0x00, 0xa3, 0x07, 0x00, 0x1a, 0x07,
+			0x00, 0x47, 0x07, 0x00, 0xb0, 0x00, 0x00,
+		},
+	}
+}