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layertypes.go
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layertypes.go
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// Copyright 2020 Anapaya Systems
//
// 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 slayers
import (
"encoding/binary"
"strconv"
"github.com/google/gopacket"
)
var (
LayerTypeSCION = gopacket.RegisterLayerType(
1000,
gopacket.LayerTypeMetadata{
Name: "SCION",
Decoder: gopacket.DecodeFunc(decodeSCION),
},
)
LayerClassSCION gopacket.LayerClass = LayerTypeSCION
LayerTypeSCIONUDP = gopacket.RegisterLayerType(
1001,
gopacket.LayerTypeMetadata{
Name: "SCION/UDP",
Decoder: gopacket.DecodeFunc(decodeSCIONUDP),
},
)
LayerClassSCIONUDP gopacket.LayerClass = LayerTypeSCIONUDP
LayerTypeSCMP = gopacket.RegisterLayerType(
1002,
gopacket.LayerTypeMetadata{
Name: "SCMP",
Decoder: gopacket.DecodeFunc(decodeSCMP),
},
)
LayerClassSCMP gopacket.LayerClass = LayerTypeSCMP
LayerTypeHopByHopExtn = gopacket.RegisterLayerType(
1003,
gopacket.LayerTypeMetadata{
Name: "HopByHopExtn",
Decoder: gopacket.DecodeFunc(decodeHopByHopExtn),
},
)
LayerClassHopByHopExtn gopacket.LayerClass = LayerTypeHopByHopExtn
LayerTypeEndToEndExtn = gopacket.RegisterLayerType(
1004,
gopacket.LayerTypeMetadata{
Name: "EndToEndExtn",
Decoder: gopacket.DecodeFunc(decodeEndToEndExtn),
},
)
LayerClassEndToEndExtn gopacket.LayerClass = LayerTypeEndToEndExtn
LayerTypeSCMPExternalInterfaceDown = gopacket.RegisterLayerType(
1005,
gopacket.LayerTypeMetadata{
Name: "SCMPExternalInterfaceDown",
Decoder: gopacket.DecodeFunc(decodeSCMPExternalInterfaceDown),
},
)
LayerTypeSCMPInternalConnectivityDown = gopacket.RegisterLayerType(
1006,
gopacket.LayerTypeMetadata{
Name: "SCMPInternalConnectivityDown",
Decoder: gopacket.DecodeFunc(decodeSCMPInternalConnectivityDown),
},
)
LayerTypeSCMPParameterProblem = gopacket.RegisterLayerType(
1007,
gopacket.LayerTypeMetadata{
Name: "SCMPParameterProblem",
Decoder: gopacket.DecodeFunc(decodeSCMPParameterProblem),
},
)
LayerTypeSCMPDestinationUnreachable = gopacket.RegisterLayerType(
1008,
gopacket.LayerTypeMetadata{
Name: "SCMPDestinationUnreachable",
Decoder: gopacket.DecodeFunc(decodeSCMPDestinationUnreachable),
},
)
LayerTypeSCMPPacketTooBig = gopacket.RegisterLayerType(
1009,
gopacket.LayerTypeMetadata{
Name: "SCMPPacketTooBig",
Decoder: gopacket.DecodeFunc(decodeSCMPPacketTooBig),
},
)
LayerTypeSCMPEcho = gopacket.RegisterLayerType(
1128,
gopacket.LayerTypeMetadata{
Name: "SCMPEcho",
Decoder: gopacket.DecodeFunc(decodeSCMPEcho),
},
)
LayerTypeSCMPTraceroute = gopacket.RegisterLayerType(
1130,
gopacket.LayerTypeMetadata{
Name: "SCMPTraceroute",
Decoder: gopacket.DecodeFunc(decodeSCMPTraceroute),
},
)
EndpointUDPPort = gopacket.RegisterEndpointType(
1005,
gopacket.EndpointTypeMetadata{
Name: "UDP",
Formatter: func(b []byte) string {
return strconv.Itoa(int(binary.BigEndian.Uint16(b)))
},
},
)
// layerTypeBFD is the identifier for gopacket/layers.LayerTypeBFD.
// Defining this with a constant here allows to build slayers without linking
// against gopacket/layers and still allow easily parsing SCION/BFD packets
// where gopacket/layers is imported.
layerTypeBFD = gopacket.LayerType(122)
)