tcp

package

v0.0.0-...-c97f47a Latest Latest Go to latest Published: Feb 9, 2020 License: BSD-2-Clause Imports: 3 Imported by: 1

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Repository

github.com/ghedo/go.pkt

Links

Open Source Insights

Documentation ¶

Overview ¶

Provides encoding and decoding for TCP packets.

Constants ¶

View Source

const (
	Syn Flags = 1 << 1
	Fin       = 1 << 2
	Rst       = 1 << 3
	PSH       = 1 << 4
	Ack       = 1 << 5
	Urg       = 1 << 6
	ECE       = 1 << 7
	Cwr       = 1 << 8
	NS        = 1 << 9
)

View Source

const (
	End         OptType = 0x00
	Nop                 = 0x01
	MSS                 = 0x02
	WindowScale         = 0x03
	SAckOk              = 0x04
	SAck                = 0x05
	Timestamp           = 0x08
)

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Flags ¶

type Flags uint16

func (Flags) String ¶

func (f Flags) String() string

type OptType ¶

type OptType uint8

type Option ¶

type Option struct {
	Type OptType
	Len  uint8
	Data []byte
}

type Packet ¶

type Packet struct {
	SrcPort    uint16 `string:"sport"`
	DstPort    uint16 `string:"dport"`
	Seq        uint32
	Ack        uint32
	DataOff    uint8 `string:"off"`
	Flags      Flags
	WindowSize uint16   `string:"win"`
	Checksum   uint16   `string:"sum"`
	Urgent     uint16   `string:"urg"`
	Options    []Option `cmp:"skip" string:"skip"`
	// contains filtered or unexported fields
}

func Make ¶

func Make() *Packet

func (*Packet) Answers ¶

func (p *Packet) Answers(other packet.Packet) bool

func (*Packet) Equals ¶

func (p *Packet) Equals(other packet.Packet) bool

func (*Packet) GetLength ¶

func (p *Packet) GetLength() uint16

func (*Packet) GetType ¶

func (p *Packet) GetType() packet.Type

func (*Packet) GuessPayloadType ¶

func (p *Packet) GuessPayloadType() packet.Type

func (*Packet) InitChecksum ¶

func (p *Packet) InitChecksum(csum uint32)

func (*Packet) Pack ¶

func (p *Packet) Pack(buf *packet.Buffer) error

func (*Packet) Payload ¶

func (p *Packet) Payload() packet.Packet

func (*Packet) SetPayload ¶

func (p *Packet) SetPayload(pl packet.Packet) error

func (*Packet) String ¶

func (p *Packet) String() string

func (*Packet) Unpack ¶

func (p *Packet) Unpack(buf *packet.Buffer) error

Source Files ¶

View all Source files

pkt.go

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