Chip Boling | 610117d | 2021-09-09 11:24:34 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 - present. Boling Consulting Solutions (bcsw.net) |
| 3 | * Copyright 2020-present Open Networking Foundation |
| 4 | |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | package omci |
| 19 | |
| 20 | import ( |
| 21 | "encoding/binary" |
| 22 | "fmt" |
| 23 | "github.com/google/gopacket" |
Andrea Campanella | e0cd823 | 2021-10-15 15:10:23 +0200 | [diff] [blame^] | 24 | me "github.com/opencord/omci-lib-go/v2/generated" |
Chip Boling | 610117d | 2021-09-09 11:24:34 -0500 | [diff] [blame] | 25 | ) |
| 26 | |
| 27 | type DeleteRequest struct { |
| 28 | MeBasePacket |
| 29 | } |
| 30 | |
| 31 | func (omci *DeleteRequest) String() string { |
| 32 | return fmt.Sprintf("%v", omci.MeBasePacket.String()) |
| 33 | } |
| 34 | |
| 35 | // LayerType returns LayerTypeDeleteRequest |
| 36 | func (omci *DeleteRequest) LayerType() gopacket.LayerType { |
| 37 | return LayerTypeDeleteRequest |
| 38 | } |
| 39 | |
| 40 | // CanDecode returns the set of layer types that this DecodingLayer can decode |
| 41 | func (omci *DeleteRequest) CanDecode() gopacket.LayerClass { |
| 42 | return LayerTypeDeleteRequest |
| 43 | } |
| 44 | |
| 45 | // NextLayerType returns the layer type contained by this DecodingLayer. |
| 46 | func (omci *DeleteRequest) NextLayerType() gopacket.LayerType { |
| 47 | return gopacket.LayerTypePayload |
| 48 | } |
| 49 | |
| 50 | // DecodeFromBytes decodes the given bytes of a Delete Request into this layer |
| 51 | func (omci *DeleteRequest) DecodeFromBytes(data []byte, p gopacket.PacketBuilder) error { |
| 52 | // Common ClassID/EntityID decode in msgBase |
| 53 | var hdrSize int |
| 54 | if omci.Extended { |
| 55 | hdrSize = 6 |
| 56 | } else { |
| 57 | hdrSize = 4 |
| 58 | } |
| 59 | err := omci.MeBasePacket.DecodeFromBytes(data, p, hdrSize) |
| 60 | if err != nil { |
| 61 | return err |
| 62 | } |
| 63 | entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass, |
| 64 | me.ParamData{EntityID: omci.EntityInstance}) |
| 65 | if omciErr.StatusCode() != me.Success { |
| 66 | return omciErr.GetError() |
| 67 | } |
| 68 | // ME needs to support Delete |
| 69 | if !me.SupportsMsgType(entity, me.Delete) { |
| 70 | return me.NewProcessingError("managed entity does not support the Delete Message-Type") |
| 71 | } |
| 72 | return nil |
| 73 | } |
| 74 | |
| 75 | func decodeDeleteRequest(data []byte, p gopacket.PacketBuilder) error { |
| 76 | omci := &DeleteRequest{} |
| 77 | omci.MsgLayerType = LayerTypeDeleteRequest |
| 78 | return decodingLayerDecoder(omci, data, p) |
| 79 | } |
| 80 | |
| 81 | func decodeDeleteRequestExtended(data []byte, p gopacket.PacketBuilder) error { |
| 82 | omci := &DeleteRequest{} |
| 83 | omci.MsgLayerType = LayerTypeDeleteRequest |
| 84 | omci.Extended = true |
| 85 | return decodingLayerDecoder(omci, data, p) |
| 86 | } |
| 87 | |
| 88 | // SerializeTo provides serialization of an Delete Request message |
| 89 | func (omci *DeleteRequest) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error { |
| 90 | // Basic (common) OMCI Header is 8 octets, 10 |
| 91 | err := omci.MeBasePacket.SerializeTo(b) |
| 92 | if err != nil { |
| 93 | return err |
| 94 | } |
| 95 | entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass, |
| 96 | me.ParamData{EntityID: omci.EntityInstance}) |
| 97 | if omciErr.StatusCode() != me.Success { |
| 98 | return omciErr.GetError() |
| 99 | } |
| 100 | // ME needs to support Delete |
| 101 | if !me.SupportsMsgType(entity, me.Delete) { |
| 102 | return me.NewProcessingError("managed entity does not support the Delete Message-Type") |
| 103 | } |
| 104 | if omci.Extended { |
| 105 | bytes, err := b.AppendBytes(2) |
| 106 | if err != nil { |
| 107 | return err |
| 108 | } |
| 109 | binary.BigEndian.PutUint16(bytes, 0) |
| 110 | } |
| 111 | return nil |
| 112 | } |
| 113 | |
| 114 | type DeleteResponse struct { |
| 115 | MeBasePacket |
| 116 | Result me.Results |
| 117 | } |
| 118 | |
| 119 | func (omci *DeleteResponse) String() string { |
| 120 | return fmt.Sprintf("%v, Result: %d (%v)", |
| 121 | omci.MeBasePacket.String(), omci.Result, omci.Result) |
| 122 | } |
| 123 | |
| 124 | // LayerType returns LayerTypeDeleteResponse |
| 125 | func (omci *DeleteResponse) LayerType() gopacket.LayerType { |
| 126 | return LayerTypeDeleteResponse |
| 127 | } |
| 128 | |
| 129 | // CanDecode returns the set of layer types that this DecodingLayer can decode |
| 130 | func (omci *DeleteResponse) CanDecode() gopacket.LayerClass { |
| 131 | return LayerTypeDeleteResponse |
| 132 | } |
| 133 | |
| 134 | // NextLayerType returns the layer type contained by this DecodingLayer. |
| 135 | func (omci *DeleteResponse) NextLayerType() gopacket.LayerType { |
| 136 | return gopacket.LayerTypePayload |
| 137 | } |
| 138 | |
| 139 | // DecodeFromBytes decodes the given bytes of a Delete Response into this layer |
| 140 | func (omci *DeleteResponse) DecodeFromBytes(data []byte, p gopacket.PacketBuilder) error { |
| 141 | // Common ClassID/EntityID decode in msgBase |
| 142 | var hdrSize int |
| 143 | if omci.Extended { |
| 144 | hdrSize = 6 + 1 |
| 145 | } else { |
| 146 | hdrSize = 4 + 1 |
| 147 | } |
| 148 | err := omci.MeBasePacket.DecodeFromBytes(data, p, hdrSize) |
| 149 | if err != nil { |
| 150 | return err |
| 151 | } |
| 152 | entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass, |
| 153 | me.ParamData{EntityID: omci.EntityInstance}) |
| 154 | if omciErr.StatusCode() != me.Success { |
| 155 | return omciErr.GetError() |
| 156 | } |
| 157 | // ME needs to support Delete |
| 158 | if !me.SupportsMsgType(entity, me.Delete) { |
| 159 | return me.NewProcessingError("managed entity does not support the Delete Message-Type") |
| 160 | } |
| 161 | offset := hdrSize - 1 |
| 162 | omci.Result = me.Results(data[offset]) |
| 163 | return nil |
| 164 | } |
| 165 | |
| 166 | func decodeDeleteResponse(data []byte, p gopacket.PacketBuilder) error { |
| 167 | omci := &DeleteResponse{} |
| 168 | omci.MsgLayerType = LayerTypeDeleteResponse |
| 169 | return decodingLayerDecoder(omci, data, p) |
| 170 | } |
| 171 | |
| 172 | func decodeDeleteResponseExtended(data []byte, p gopacket.PacketBuilder) error { |
| 173 | omci := &DeleteResponse{} |
| 174 | omci.MsgLayerType = LayerTypeDeleteResponse |
| 175 | omci.Extended = true |
| 176 | return decodingLayerDecoder(omci, data, p) |
| 177 | } |
| 178 | |
| 179 | // SerializeTo provides serialization of an Delete Response message |
| 180 | func (omci *DeleteResponse) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error { |
| 181 | // Basic (common) OMCI Header is 8 octets, 10 |
| 182 | err := omci.MeBasePacket.SerializeTo(b) |
| 183 | if err != nil { |
| 184 | return err |
| 185 | } |
| 186 | entity, omciErr := me.LoadManagedEntityDefinition(omci.EntityClass, |
| 187 | me.ParamData{EntityID: omci.EntityInstance}) |
| 188 | if omciErr.StatusCode() != me.Success { |
| 189 | return omciErr.GetError() |
| 190 | } |
| 191 | // ME needs to support Delete |
| 192 | if !me.SupportsMsgType(entity, me.Delete) { |
| 193 | return me.NewProcessingError("managed entity does not support the Delete Message-Type") |
| 194 | } |
| 195 | var offset int |
| 196 | if omci.Extended { |
| 197 | offset = 2 |
| 198 | } else { |
| 199 | offset = 0 |
| 200 | } |
| 201 | bytes, err := b.AppendBytes(offset + 1) |
| 202 | if omci.Extended { |
| 203 | binary.BigEndian.PutUint16(bytes, 1) |
| 204 | } |
| 205 | if err != nil { |
| 206 | return err |
| 207 | } |
| 208 | bytes[offset] = byte(omci.Result) |
| 209 | return nil |
| 210 | } |