vnet

Documentation

Index

• Constants
• type Freer
• type Pack
• type PackLayer
• type PackPool
  • func NewPool(prefixSize, MaxPackDataSize int, packLayer PackLayer) PackPool

Constants

const MaxPackSize = 2000

Types

type Freer

type Freer interface {
	Free(Pack)
}

type Pack

type Pack interface {

	// 所有数据
	// 为了减少内存拷贝，会预先保留二次封装包包头的空间，使得封包时不用再次拷贝。
	GetAllData() []byte

	// tun/tap 包数据
	GetPrefixData() []byte
	GetPackData() []byte
	SetPackLength(int)

	// 释放本包占用的内存
	Free()

	Reset()

	GetPackLayer() PackLayer

	// 不安全，非拷贝副本
	GetIP() (net.IP, net.IP, error)
	GetPort() (int, int, error)
}

type PackLayer

type PackLayer int

const (
	PackLayerLink        PackLayer = 0x10 //以太网
	PackLayerNetwork     PackLayer = 0x20 // ip
	PackLayerTransport   PackLayer = 0x30 //tcp udp
	PackLayerApplication PackLayer = 0x40 //
)

type PackPool

type PackPool interface {
	Malloc() Pack
}

func NewPool

func NewPool(prefixSize, MaxPackDataSize int, packLayer PackLayer) PackPool