Decoder decodes packet's layers
(data []byte, protocol uint32)
| 51 | |
| 52 | // Decoder decodes packet's layers |
| 53 | func (p *Packet) Decoder(data []byte, protocol uint32) (*Packet, error) { |
| 54 | var ( |
| 55 | err error |
| 56 | ) |
| 57 | |
| 58 | p.data = data |
| 59 | |
| 60 | switch protocol { |
| 61 | case headerProtocolEthernet: |
| 62 | err = p.decodeEthernetHeader() |
| 63 | return p, err |
| 64 | case headerProtocolIPv4: |
| 65 | err = p.decodeIPv4Header() |
| 66 | if err != nil { |
| 67 | return p, err |
| 68 | } |
| 69 | case headerProtocolIPv6: |
| 70 | err = p.decodeIPv6Header() |
| 71 | if err != nil { |
| 72 | return p, err |
| 73 | } |
| 74 | default: |
| 75 | return p, errUnknownHeaderProtocol |
| 76 | } |
| 77 | |
| 78 | err = p.decodeNextLayer() |
| 79 | if err != nil { |
| 80 | return p, err |
| 81 | } |
| 82 | |
| 83 | return p, nil |
| 84 | } |
| 85 | |
| 86 | func (p *Packet) decodeEthernetHeader() error { |
| 87 | var ( |