| Naveen Sampath | 04696f7 | 2022-06-13 15:19:14 +0530 | [diff] [blame] | 1 | // Copyright 2019 The GoPacket Authors. All rights reserved. |
| 2 | |
| 3 | package gopacket |
| 4 | |
| 5 | // Created by gen.go, don't edit manually |
| 6 | // Generated at 2019-06-18 11:37:31.308731293 +0600 +06 m=+0.000842599 |
| 7 | |
| 8 | // LayersDecoder returns DecodingLayerFunc for specified |
| 9 | // DecodingLayerContainer, LayerType value to start decoding with and |
| 10 | // some DecodeFeedback. |
| 11 | func LayersDecoder(dl DecodingLayerContainer, first LayerType, df DecodeFeedback) DecodingLayerFunc { |
| 12 | firstDec, ok := dl.Decoder(first) |
| 13 | if !ok { |
| 14 | return func([]byte, *[]LayerType) (LayerType, error) { |
| 15 | return first, nil |
| 16 | } |
| 17 | } |
| 18 | if dlc, ok := dl.(DecodingLayerSparse); ok { |
| 19 | return func(data []byte, decoded *[]LayerType) (LayerType, error) { |
| 20 | *decoded = (*decoded)[:0] // Truncated decoded layers. |
| 21 | typ := first |
| 22 | decoder := firstDec |
| 23 | for { |
| 24 | if err := decoder.DecodeFromBytes(data, df); err != nil { |
| 25 | return LayerTypeZero, err |
| 26 | } |
| 27 | *decoded = append(*decoded, typ) |
| 28 | typ = decoder.NextLayerType() |
| 29 | if data = decoder.LayerPayload(); len(data) == 0 { |
| 30 | break |
| 31 | } |
| 32 | if decoder, ok = dlc.Decoder(typ); !ok { |
| 33 | return typ, nil |
| 34 | } |
| 35 | } |
| 36 | return LayerTypeZero, nil |
| 37 | } |
| 38 | } |
| 39 | if dlc, ok := dl.(DecodingLayerArray); ok { |
| 40 | return func(data []byte, decoded *[]LayerType) (LayerType, error) { |
| 41 | *decoded = (*decoded)[:0] // Truncated decoded layers. |
| 42 | typ := first |
| 43 | decoder := firstDec |
| 44 | for { |
| 45 | if err := decoder.DecodeFromBytes(data, df); err != nil { |
| 46 | return LayerTypeZero, err |
| 47 | } |
| 48 | *decoded = append(*decoded, typ) |
| 49 | typ = decoder.NextLayerType() |
| 50 | if data = decoder.LayerPayload(); len(data) == 0 { |
| 51 | break |
| 52 | } |
| 53 | if decoder, ok = dlc.Decoder(typ); !ok { |
| 54 | return typ, nil |
| 55 | } |
| 56 | } |
| 57 | return LayerTypeZero, nil |
| 58 | } |
| 59 | } |
| 60 | if dlc, ok := dl.(DecodingLayerMap); ok { |
| 61 | return func(data []byte, decoded *[]LayerType) (LayerType, error) { |
| 62 | *decoded = (*decoded)[:0] // Truncated decoded layers. |
| 63 | typ := first |
| 64 | decoder := firstDec |
| 65 | for { |
| 66 | if err := decoder.DecodeFromBytes(data, df); err != nil { |
| 67 | return LayerTypeZero, err |
| 68 | } |
| 69 | *decoded = append(*decoded, typ) |
| 70 | typ = decoder.NextLayerType() |
| 71 | if data = decoder.LayerPayload(); len(data) == 0 { |
| 72 | break |
| 73 | } |
| 74 | if decoder, ok = dlc.Decoder(typ); !ok { |
| 75 | return typ, nil |
| 76 | } |
| 77 | } |
| 78 | return LayerTypeZero, nil |
| 79 | } |
| 80 | } |
| 81 | dlc := dl |
| 82 | return func(data []byte, decoded *[]LayerType) (LayerType, error) { |
| 83 | *decoded = (*decoded)[:0] // Truncated decoded layers. |
| 84 | typ := first |
| 85 | decoder := firstDec |
| 86 | for { |
| 87 | if err := decoder.DecodeFromBytes(data, df); err != nil { |
| 88 | return LayerTypeZero, err |
| 89 | } |
| 90 | *decoded = append(*decoded, typ) |
| 91 | typ = decoder.NextLayerType() |
| 92 | if data = decoder.LayerPayload(); len(data) == 0 { |
| 93 | break |
| 94 | } |
| 95 | if decoder, ok = dlc.Decoder(typ); !ok { |
| 96 | return typ, nil |
| 97 | } |
| 98 | } |
| 99 | return LayerTypeZero, nil |
| 100 | } |
| 101 | } |