VOL-4337: Code upgrade for 3/2020 G.988 support and remaining Extended Message Set support

Change-Id: I6c5e1a167216ad9b51e9da89460e9909465ae1bc
diff --git a/reboot.go b/reboot.go
new file mode 100644
index 0000000..f2983ca
--- /dev/null
+++ b/reboot.go
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2018 - present.  Boling Consulting Solutions (bcsw.net)
+ * 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 omci
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"github.com/google/gopacket"
+	me "github.com/opencord/omci-lib-go/generated"
+)
+
+type RebootRequest struct {
+	MeBasePacket
+	RebootCondition byte
+}
+
+func (omci *RebootRequest) String() string {
+	return fmt.Sprintf("%v, Reboot Condition: %v",
+		omci.MeBasePacket.String(), omci.RebootCondition)
+}
+
+// LayerType returns LayerTypeRebootRequest
+func (omci *RebootRequest) LayerType() gopacket.LayerType {
+	return LayerTypeRebootRequest
+}
+
+// CanDecode returns the set of layer types that this DecodingLayer can decode
+func (omci *RebootRequest) CanDecode() gopacket.LayerClass {
+	return LayerTypeRebootRequest
+}
+
+// NextLayerType returns the layer type contained by this DecodingLayer.
+func (omci *RebootRequest) NextLayerType() gopacket.LayerType {
+	return gopacket.LayerTypePayload
+}
+
+// DecodeFromBytes decodes the given bytes of a Reboot Request into this layer
+func (omci *RebootRequest) DecodeFromBytes(data []byte, p gopacket.PacketBuilder) error {
+	// Common ClassID/EntityID decode in msgBase
+	var hdrSize int
+	if omci.Extended {
+		hdrSize = 6 + 1
+	} else {
+		hdrSize = 4 + 1
+	}
+	err := omci.MeBasePacket.DecodeFromBytes(data, p, hdrSize)
+	if err != nil {
+		return err
+	}
+	meDefinition, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass,
+		me.ParamData{EntityID: omci.EntityInstance})
+	if omciErr.StatusCode() != me.Success {
+		return omciErr.GetError()
+	}
+	// ME needs to support Reboot
+	if !me.SupportsMsgType(meDefinition, me.Reboot) {
+		return me.NewProcessingError("managed entity does not support Reboot Message-Type")
+	}
+	offset := hdrSize - 1
+	omci.RebootCondition = data[offset]
+	if omci.RebootCondition > 3 {
+		msg := fmt.Sprintf("invalid reboot condition code: %v, must be 0..3", omci.RebootCondition)
+		return errors.New(msg)
+	}
+	return nil
+}
+
+func decodeRebootRequest(data []byte, p gopacket.PacketBuilder) error {
+	omci := &RebootRequest{}
+	omci.MsgLayerType = LayerTypeRebootRequest
+	return decodingLayerDecoder(omci, data, p)
+}
+
+func decodeRebootRequestExtended(data []byte, p gopacket.PacketBuilder) error {
+	omci := &RebootRequest{}
+	omci.MsgLayerType = LayerTypeRebootRequest
+	omci.Extended = true
+	return decodingLayerDecoder(omci, data, p)
+}
+
+// SerializeTo provides serialization of an Reboot Request message
+func (omci *RebootRequest) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error {
+	// Basic (common) OMCI Header is 8 octets, 10
+	err := omci.MeBasePacket.SerializeTo(b)
+	if err != nil {
+		return err
+	}
+	entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass,
+		me.ParamData{EntityID: omci.EntityInstance})
+	if omciErr.StatusCode() != me.Success {
+		return omciErr.GetError()
+	}
+	// ME needs to support Reboot
+	if !me.SupportsMsgType(entity, me.Reboot) {
+		return me.NewProcessingError("managed entity does not support the Synchronize Time Message-Type")
+	}
+	var offset int
+	if omci.Extended {
+		offset = 2
+	} else {
+		offset = 0
+	}
+	bytes, err := b.AppendBytes(offset + 1)
+	if err != nil {
+		return err
+	}
+	if omci.RebootCondition > 3 {
+		return me.NewProcessingError(fmt.Sprintf("invalid reboot condition code: %v, must be 0..3",
+			omci.RebootCondition))
+	}
+	if omci.Extended {
+		binary.BigEndian.PutUint16(bytes, 1)
+	}
+	bytes[offset] = omci.RebootCondition
+	return nil
+}
+
+type RebootResponse struct {
+	MeBasePacket
+	Result me.Results
+}
+
+// DecodeFromBytes decodes the given bytes of a Reboot Response into this layer
+func (omci *RebootResponse) String() string {
+	return fmt.Sprintf("%v, Result: %d (%v)",
+		omci.MeBasePacket.String(), omci.Result, omci.Result)
+}
+
+// LayerType returns LayerTypeRebootResponse
+func (omci *RebootResponse) LayerType() gopacket.LayerType {
+	return LayerTypeRebootResponse
+}
+
+// CanDecode returns the set of layer types that this DecodingLayer can decode
+func (omci *RebootResponse) CanDecode() gopacket.LayerClass {
+	return LayerTypeRebootResponse
+}
+
+// NextLayerType returns the layer type contained by this DecodingLayer.
+func (omci *RebootResponse) NextLayerType() gopacket.LayerType {
+	return gopacket.LayerTypePayload
+}
+
+// DecodeFromBytes decodes the given bytes of a Reboot Response into this layer
+func (omci *RebootResponse) DecodeFromBytes(data []byte, p gopacket.PacketBuilder) error {
+	// Common ClassID/EntityID decode in msgBase
+	var hdrSize int
+	if omci.Extended {
+		hdrSize = 6 + 1
+	} else {
+		hdrSize = 4 + 1
+	}
+	err := omci.MeBasePacket.DecodeFromBytes(data, p, hdrSize)
+	if err != nil {
+		return err
+	}
+	meDefinition, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass,
+		me.ParamData{EntityID: omci.EntityInstance})
+	if omciErr.StatusCode() != me.Success {
+		return omciErr.GetError()
+	}
+	// ME needs to support Reboot
+	if !me.SupportsMsgType(meDefinition, me.Reboot) {
+		return me.NewProcessingError("managed entity does not support Reboot Message-Type")
+	}
+	if omci.Result > 6 {
+		msg := fmt.Sprintf("invalid reboot results code: %v, must be 0..6", omci.Result)
+		return errors.New(msg)
+	}
+	offset := hdrSize - 1
+	omci.Result = me.Results(data[offset])
+	return nil
+}
+
+func decodeRebootResponse(data []byte, p gopacket.PacketBuilder) error {
+	omci := &RebootResponse{}
+	omci.MsgLayerType = LayerTypeRebootResponse
+	return decodingLayerDecoder(omci, data, p)
+}
+
+func decodeRebootResponseExtended(data []byte, p gopacket.PacketBuilder) error {
+	omci := &RebootResponse{}
+	omci.MsgLayerType = LayerTypeRebootResponse
+	omci.Extended = true
+	return decodingLayerDecoder(omci, data, p)
+}
+
+// SerializeTo provides serialization of an Reboot Response message
+func (omci *RebootResponse) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error {
+	// Basic (common) OMCI Header is 8 octets, 10
+	err := omci.MeBasePacket.SerializeTo(b)
+	if err != nil {
+		return err
+	}
+	entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass,
+		me.ParamData{EntityID: omci.EntityInstance})
+	if omciErr.StatusCode() != me.Success {
+		return omciErr.GetError()
+	}
+	// ME needs to support Reboot
+	if !me.SupportsMsgType(entity, me.Reboot) {
+		return me.NewProcessingError("managed entity does not support the Synchronize Time Message-Type")
+	}
+	var offset int
+	if omci.Extended {
+		offset = 2
+	} else {
+		offset = 0
+	}
+	bytes, err := b.AppendBytes(offset + 1)
+	if err != nil {
+		return err
+	}
+	if omci.Result > 6 {
+		msg := fmt.Sprintf("invalid reboot results code: %v, must be 0..6", omci.Result)
+		return errors.New(msg)
+	}
+	if omci.Extended {
+		binary.BigEndian.PutUint16(bytes, 1)
+	}
+	bytes[offset] = byte(omci.Result)
+	return nil
+}