/
serialization.go
71 lines (54 loc) · 2.21 KB
/
serialization.go
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// MIT License
// Copyright (c) [2022] [Bohdan Ivashko (https://github.com/Arriven)]
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package packetgen
import (
"fmt"
"github.com/google/gopacket"
)
var opts = gopacket.SerializeOptions{
FixLengths: true,
ComputeChecksums: true,
}
func SerializeLayers(payloadBuf gopacket.SerializeBuffer, layers ...gopacket.Layer) error {
serializableLayers := make([]gopacket.SerializableLayer, 0, len(layers))
for _, layer := range layers {
if layer == nil {
continue
}
serializableLayer, err := toSerializable(layer)
if err != nil {
return err
}
serializableLayers = append(serializableLayers, serializableLayer)
}
return gopacket.SerializeLayers(payloadBuf, opts, serializableLayers...)
}
func Serialize(payloadBuf gopacket.SerializeBuffer, layer gopacket.Layer) error {
serializable, err := toSerializable(layer)
if err != nil {
return err
}
return serializable.SerializeTo(payloadBuf, opts)
}
func toSerializable(layer gopacket.Layer) (gopacket.SerializableLayer, error) {
serializable, ok := layer.(gopacket.SerializableLayer)
if !ok {
return nil, fmt.Errorf("layer is not serializable: %v", layer.LayerType())
}
return serializable, nil
}