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/*
* 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"
"fmt"
"github.com/google/gopacket"
me "github.com/opencord/omci-lib-go/v2/generated"
)
type DeleteRequest struct {
MeBasePacket
}
func (omci *DeleteRequest) String() string {
return fmt.Sprintf("%v", omci.MeBasePacket.String())
}
// LayerType returns LayerTypeDeleteRequest
func (omci *DeleteRequest) LayerType() gopacket.LayerType {
return LayerTypeDeleteRequest
}
// CanDecode returns the set of layer types that this DecodingLayer can decode
func (omci *DeleteRequest) CanDecode() gopacket.LayerClass {
return LayerTypeDeleteRequest
}
// NextLayerType returns the layer type contained by this DecodingLayer.
func (omci *DeleteRequest) NextLayerType() gopacket.LayerType {
return gopacket.LayerTypePayload
}
// DecodeFromBytes decodes the given bytes of a Delete Request into this layer
func (omci *DeleteRequest) DecodeFromBytes(data []byte, p gopacket.PacketBuilder) error {
// Common ClassID/EntityID decode in msgBase
var hdrSize int
if omci.Extended {
hdrSize = 6
} else {
hdrSize = 4
}
err := omci.MeBasePacket.DecodeFromBytes(data, p, hdrSize)
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 Delete
if !me.SupportsMsgType(entity, me.Delete) {
return me.NewProcessingError("managed entity does not support the Delete Message-Type")
}
return nil
}
func decodeDeleteRequest(data []byte, p gopacket.PacketBuilder) error {
omci := &DeleteRequest{}
omci.MsgLayerType = LayerTypeDeleteRequest
return decodingLayerDecoder(omci, data, p)
}
func decodeDeleteRequestExtended(data []byte, p gopacket.PacketBuilder) error {
omci := &DeleteRequest{}
omci.MsgLayerType = LayerTypeDeleteRequest
omci.Extended = true
return decodingLayerDecoder(omci, data, p)
}
// SerializeTo provides serialization of an Delete Request message
func (omci *DeleteRequest) 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 Delete
if !me.SupportsMsgType(entity, me.Delete) {
return me.NewProcessingError("managed entity does not support the Delete Message-Type")
}
if omci.Extended {
bytes, err := b.AppendBytes(2)
if err != nil {
return err
}
binary.BigEndian.PutUint16(bytes, 0)
}
return nil
}
type DeleteResponse struct {
MeBasePacket
Result me.Results
}
func (omci *DeleteResponse) String() string {
return fmt.Sprintf("%v, Result: %d (%v)",
omci.MeBasePacket.String(), omci.Result, omci.Result)
}
// LayerType returns LayerTypeDeleteResponse
func (omci *DeleteResponse) LayerType() gopacket.LayerType {
return LayerTypeDeleteResponse
}
// CanDecode returns the set of layer types that this DecodingLayer can decode
func (omci *DeleteResponse) CanDecode() gopacket.LayerClass {
return LayerTypeDeleteResponse
}
// NextLayerType returns the layer type contained by this DecodingLayer.
func (omci *DeleteResponse) NextLayerType() gopacket.LayerType {
return gopacket.LayerTypePayload
}
// DecodeFromBytes decodes the given bytes of a Delete Response into this layer
func (omci *DeleteResponse) 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
}
entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass,
me.ParamData{EntityID: omci.EntityInstance})
if omciErr.StatusCode() != me.Success {
return omciErr.GetError()
}
// ME needs to support Delete
if !me.SupportsMsgType(entity, me.Delete) {
return me.NewProcessingError("managed entity does not support the Delete Message-Type")
}
offset := hdrSize - 1
omci.Result = me.Results(data[offset])
return nil
}
func decodeDeleteResponse(data []byte, p gopacket.PacketBuilder) error {
omci := &DeleteResponse{}
omci.MsgLayerType = LayerTypeDeleteResponse
return decodingLayerDecoder(omci, data, p)
}
func decodeDeleteResponseExtended(data []byte, p gopacket.PacketBuilder) error {
omci := &DeleteResponse{}
omci.MsgLayerType = LayerTypeDeleteResponse
omci.Extended = true
return decodingLayerDecoder(omci, data, p)
}
// SerializeTo provides serialization of an Delete Response message
func (omci *DeleteResponse) 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 Delete
if !me.SupportsMsgType(entity, me.Delete) {
return me.NewProcessingError("managed entity does not support the Delete Message-Type")
}
var offset int
if omci.Extended {
offset = 2
} else {
offset = 0
}
bytes, err := b.AppendBytes(offset + 1)
if omci.Extended {
binary.BigEndian.PutUint16(bytes, 1)
}
if err != nil {
return err
}
bytes[offset] = byte(omci.Result)
return nil
}