Committing vendored dependencies and generated protos

Change-Id: I349c149b513d9de7d9f60bde2c954a939da2fc54
diff --git a/vendor/github.com/opencord/omci-sim/omci_common.go b/vendor/github.com/opencord/omci-sim/omci_common.go
new file mode 100644
index 0000000..c878780
--- /dev/null
+++ b/vendor/github.com/opencord/omci-sim/omci_common.go
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2018-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 core
+
+import (
+	"fmt"
+	log "github.com/sirupsen/logrus"
+)
+
+type OmciError struct {
+	Msg string
+}
+
+func (e *OmciError) Error() string {
+	return fmt.Sprintf("%s", e.Msg)
+}
+
+type OnuKey struct {
+	IntfId, OnuId uint32
+}
+
+func (k OnuKey) String() string {
+	return fmt.Sprintf("Onu {intfid:%d, onuid:%d}", k.IntfId, k.OnuId)
+}
+
+func GetAttributes(class OmciClass, content OmciContent, key OnuKey, pkt []byte) []byte {
+	log.WithFields(log.Fields{
+		"IntfId": key.IntfId,
+		"OnuId": key.OnuId,
+	}).Tracef("GetAttributes() invoked")
+
+	switch class {
+	case ANIG:
+		pos := uint(11)
+		pkt, _ = GetANIGAttributes(&pos, pkt, content)
+		return pkt
+
+	case EthernetPMHistoryData:
+		pos := uint(11)
+		pkt, _ = GetEthernetPMHistoryDataAttributes(&pos, pkt, content)
+		return pkt
+	default:
+		// For unimplemented MEs, just fill in the attribute mask and return 0 values for the requested attributes
+		// TODO implement Get for unimplemented MEs as well
+		log.WithFields(log.Fields{
+			"IntfId": key.IntfId,
+			"OnuId": key.OnuId,
+			"class": class,
+		}).Tracef("Unimplemeted GetAttributes for ME Class: %v " +
+		    "Filling with zero value for the requested attributes", class)
+		AttributesMask := getAttributeMask(content)
+		pkt[8] = 0x00 // Command Processed Successfully
+		pkt[9] = uint8(AttributesMask >> 8)
+		pkt[10] = uint8(AttributesMask & 0xFF)
+
+		return pkt
+	}
+}
+
+func getAttributeMask(content OmciContent) int {
+	// mask is present in pkt[8] and pkt[9]
+	log.WithFields(log.Fields{
+		"content[0]": content[0],
+		"content[1]": content[1],
+	}).Tracef("GetAttributeMask() invoked")
+	return (int(content[0]) << 8) | int(content[1])
+}