cloudflared-mirror/vendor/github.com/google/gopacket/layers_decoder.go

102 lines
2.8 KiB
Go

// Copyright 2019 The GoPacket Authors. All rights reserved.
package gopacket
// Created by gen.go, don't edit manually
// Generated at 2019-06-18 11:37:31.308731293 +0600 +06 m=+0.000842599
// LayersDecoder returns DecodingLayerFunc for specified
// DecodingLayerContainer, LayerType value to start decoding with and
// some DecodeFeedback.
func LayersDecoder(dl DecodingLayerContainer, first LayerType, df DecodeFeedback) DecodingLayerFunc {
firstDec, ok := dl.Decoder(first)
if !ok {
return func([]byte, *[]LayerType) (LayerType, error) {
return first, nil
}
}
if dlc, ok := dl.(DecodingLayerSparse); ok {
return func(data []byte, decoded *[]LayerType) (LayerType, error) {
*decoded = (*decoded)[:0] // Truncated decoded layers.
typ := first
decoder := firstDec
for {
if err := decoder.DecodeFromBytes(data, df); err != nil {
return LayerTypeZero, err
}
*decoded = append(*decoded, typ)
typ = decoder.NextLayerType()
if data = decoder.LayerPayload(); len(data) == 0 {
break
}
if decoder, ok = dlc.Decoder(typ); !ok {
return typ, nil
}
}
return LayerTypeZero, nil
}
}
if dlc, ok := dl.(DecodingLayerArray); ok {
return func(data []byte, decoded *[]LayerType) (LayerType, error) {
*decoded = (*decoded)[:0] // Truncated decoded layers.
typ := first
decoder := firstDec
for {
if err := decoder.DecodeFromBytes(data, df); err != nil {
return LayerTypeZero, err
}
*decoded = append(*decoded, typ)
typ = decoder.NextLayerType()
if data = decoder.LayerPayload(); len(data) == 0 {
break
}
if decoder, ok = dlc.Decoder(typ); !ok {
return typ, nil
}
}
return LayerTypeZero, nil
}
}
if dlc, ok := dl.(DecodingLayerMap); ok {
return func(data []byte, decoded *[]LayerType) (LayerType, error) {
*decoded = (*decoded)[:0] // Truncated decoded layers.
typ := first
decoder := firstDec
for {
if err := decoder.DecodeFromBytes(data, df); err != nil {
return LayerTypeZero, err
}
*decoded = append(*decoded, typ)
typ = decoder.NextLayerType()
if data = decoder.LayerPayload(); len(data) == 0 {
break
}
if decoder, ok = dlc.Decoder(typ); !ok {
return typ, nil
}
}
return LayerTypeZero, nil
}
}
dlc := dl
return func(data []byte, decoded *[]LayerType) (LayerType, error) {
*decoded = (*decoded)[:0] // Truncated decoded layers.
typ := first
decoder := firstDec
for {
if err := decoder.DecodeFromBytes(data, df); err != nil {
return LayerTypeZero, err
}
*decoded = append(*decoded, typ)
typ = decoder.NextLayerType()
if data = decoder.LayerPayload(); len(data) == 0 {
break
}
if decoder, ok = dlc.Decoder(typ); !ok {
return typ, nil
}
}
return LayerTypeZero, nil
}
}