[SEBA-836] BBSim Reflector
Change-Id: Ib4ae5a2c24880dc62209bebb81188eca5f57865d
diff --git a/internal/common/omci/mibpackets.go b/internal/common/omci/mibpackets.go
new file mode 100755
index 0000000..99ebb56
--- /dev/null
+++ b/internal/common/omci/mibpackets.go
@@ -0,0 +1,238 @@
+/*
+ * 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 omci
+
+import (
+ "encoding/hex"
+ "github.com/cboling/omci"
+ me "github.com/cboling/omci/generated"
+ "github.com/google/gopacket"
+ omcisim "github.com/opencord/omci-sim"
+ log "github.com/sirupsen/logrus"
+)
+
+var omciLogger = log.WithFields(log.Fields{
+ "module": "OMCI",
+})
+
+const galEthernetEID = uint16(1)
+const maxGemPayloadSize = uint16(48)
+const gemEID = uint16(1)
+
+type txFrameCreator func() ([]byte, error)
+type rxFrameParser func(gopacket.Packet) error
+
+type ServiceStep struct {
+ MakeTxFrame txFrameCreator
+ RxHandler rxFrameParser
+}
+
+func serialize(msgType omci.MessageType, request gopacket.SerializableLayer, tid uint16) ([]byte, error) {
+ omciLayer := &omci.OMCI{
+ TransactionID: tid,
+ MessageType: msgType,
+ }
+ var options gopacket.SerializeOptions
+ options.FixLengths = true
+
+ buffer := gopacket.NewSerializeBuffer()
+ err := gopacket.SerializeLayers(buffer, options, omciLayer, request)
+ if err != nil {
+ return nil, err
+ }
+ return buffer.Bytes(), nil
+}
+
+func hexEncode(omciPkt []byte) ([]byte, error) {
+ dst := make([]byte, hex.EncodedLen(len(omciPkt)))
+ hex.Encode(dst, omciPkt)
+ return dst, nil
+}
+
+func DecodeOmci(payload []byte) (omci.MessageType, gopacket.Packet) {
+ // Perform base OMCI decode (common to all requests)
+ packet := gopacket.NewPacket(payload, omci.LayerTypeOMCI, gopacket.NoCopy)
+
+ if omciLayer := packet.Layer(omci.LayerTypeOMCI); omciLayer != nil {
+
+ omciObj, omciOk := omciLayer.(*omci.OMCI)
+ if !omciOk {
+ panic("Not Expected") // TODO: Do something better or delete...
+ }
+ if byte(omciObj.MessageType) & ^me.AK == 0 {
+ // Not a response, silently discard
+ return 0, nil
+ }
+ return omciObj.MessageType, packet
+ }
+
+ // FIXME
+ // if we can't properly decode the packet, try using shad helper method
+ // most likely this won't be necessary once we move omci-sim to use cboling/omci
+ // to generate packets
+ _, _, msgType, _, _, _, err := omcisim.ParsePkt(payload)
+ if err != nil {
+ return 0, nil
+ }
+ if msgType == omcisim.MibReset {
+ return omci.MibResetResponseType, nil
+ }
+ if msgType == omcisim.MibUpload {
+ return omci.MibUploadResponseType, nil
+ }
+ if msgType == omcisim.MibUploadNext {
+ return omci.MibUploadNextResponseType, nil
+ }
+ if msgType == omcisim.Create {
+ return omci.CreateResponseType, nil
+ }
+ if msgType == omcisim.Set {
+ return omci.SetResponseType, nil
+ }
+
+ omciLogger.Warnf("omci-sim returns msgType: %d", msgType)
+
+ return 0, nil
+}
+
+func CreateMibResetRequest(tid uint16) ([]byte, error) {
+
+ request := &omci.MibResetRequest{
+ MeBasePacket: omci.MeBasePacket{
+ EntityClass: me.OnuDataClassId,
+ },
+ }
+ pkt, err := serialize(omci.MibResetRequestType, request, tid)
+ if err != nil {
+ omciLogger.WithFields(log.Fields{
+ "Err": err,
+ }).Fatalf("Cannot serialize MibResetRequest")
+ return nil, err
+ }
+ return hexEncode(pkt)
+}
+
+func CreateMibUploadRequest(tid uint16) ([]byte, error) {
+ request := &omci.MibUploadRequest{
+ MeBasePacket: omci.MeBasePacket{
+ EntityClass: me.OnuDataClassId,
+ // Default Instance ID is 0
+ },
+ }
+ pkt, err := serialize(omci.MibUploadRequestType, request, tid)
+ if err != nil {
+ omciLogger.WithFields(log.Fields{
+ "Err": err,
+ }).Fatalf("Cannot serialize MibUploadRequest")
+ return nil, err
+ }
+ return hexEncode(pkt)
+}
+
+func CreateMibUploadNextRequest(tid uint16, seqNumber uint16) ([]byte, error) {
+
+ request := &omci.MibUploadNextRequest{
+ MeBasePacket: omci.MeBasePacket{
+ EntityClass: me.OnuDataClassId,
+ // Default Instance ID is 0
+ },
+ CommandSequenceNumber: seqNumber,
+ }
+ pkt, err := serialize(omci.MibUploadNextRequestType, request, tid)
+
+ if err != nil {
+ omciLogger.WithFields(log.Fields{
+ "Err": err,
+ }).Fatalf("Cannot serialize MibUploadNextRequest")
+ return nil, err
+ }
+ return hexEncode(pkt)
+}
+
+// TODO understand and refactor
+
+func CreateGalEnetRequest(tid uint16) ([]byte, error) {
+ params := me.ParamData{
+ EntityID: galEthernetEID,
+ Attributes: me.AttributeValueMap{"MaximumGemPayloadSize": maxGemPayloadSize},
+ }
+ meDef, _ := me.NewGalEthernetProfile(params)
+ pkt, err := omci.GenFrame(meDef, omci.CreateRequestType, omci.TransactionID(tid))
+ if err != nil {
+ omciLogger.WithField("err", err).Fatalf("Can't generate GalEnetRequest")
+ }
+ return hexEncode(pkt)
+}
+
+func CreateEnableUniRequest(tid uint16, uniId uint16, enabled bool, isPtp bool) ([]byte, error) {
+
+ var _enabled uint8
+ if enabled {
+ _enabled = uint8(1)
+ } else {
+ _enabled = uint8(0)
+ }
+
+ data := me.ParamData{
+ EntityID: uniId,
+ Attributes: me.AttributeValueMap{
+ "AdministrativeState": _enabled,
+ },
+ }
+ var medef *me.ManagedEntity
+ var omciErr me.OmciErrors
+
+ if isPtp {
+ medef, omciErr = me.NewPhysicalPathTerminationPointEthernetUni(data)
+ } else {
+ medef, omciErr = me.NewVirtualEthernetInterfacePoint(data)
+ }
+ if omciErr != nil {
+ return nil, omciErr.GetError()
+ }
+ pkt, err := omci.GenFrame(medef, omci.SetRequestType, omci.TransactionID(tid))
+ if err != nil {
+ omciLogger.WithField("err", err).Fatalf("Can't generate EnableUniRequest")
+ }
+ return hexEncode(pkt)
+}
+
+func CreateGemPortRequest(tid uint16) ([]byte, error) {
+ params := me.ParamData{
+ EntityID: gemEID,
+ Attributes: me.AttributeValueMap{
+ "PortId": 1,
+ "TContPointer": 1,
+ "Direction": 0,
+ "TrafficManagementPointerForUpstream": 0,
+ "TrafficDescriptorProfilePointerForUpstream": 0,
+ "UniCounter": 0,
+ "PriorityQueuePointerForDownStream": 0,
+ "EncryptionState": 0,
+ "TrafficDescriptorProfilePointerForDownstream": 0,
+ "EncryptionKeyRing": 0,
+ },
+ }
+ meDef, _ := me.NewGemPortNetworkCtp(params)
+ pkt, err := omci.GenFrame(meDef, omci.CreateRequestType, omci.TransactionID(tid))
+ if err != nil {
+ omciLogger.WithField("err", err).Fatalf("Can't generate GemPortRequest")
+ }
+ return hexEncode(pkt)
+}
+
+// END TODO