tunnel

package
v0.0.0-...-02281ea Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Mar 27, 2020 License: MIT Imports: 21 Imported by: 4

Documentation

Overview

date : 2015-08-31 author: xjdrew

Index

Constants

View Source 
const (
	TaaTokenSize     int = aes.BlockSize
	TaaSignatureSize int = md5.Size
	TaaBlockSize     int = TaaTokenSize + TaaSignatureSize
)
View Source 
const (
	LINK_DATA uint8 = iota
	LINK_CREATE
	LINK_CLOSE
	LINK_CLOSE_RECV
	LINK_CLOSE_SEND
	TUN_HEARTBEAT
)
View Source 
const (
	TunnelMaxId = ^uint16(0)

	TunnelPacketSize      = 8192
	TunnelKeepAlivePeriod = time.Second * 180
)

Variables

View Source 
var (
	// Heartbeat interval for tunnel heartbeat, seconds.
	Heartbeat int = 1 // seconds

	// Timeout for tunnel write/read, seconds
	Timeout int = 0 //

	// LogLevel .
	LogLevel uint = 1
)

Functions

func Debug 

func Debug(format string, a ...interface{})

func Error 

func Error(format string, a ...interface{})

func Info 

func Info(format string, a ...interface{})

func Log 

func Log(format string, a ...interface{})

func LogCurStack 

func LogCurStack(format string, a ...interface{})

func LogStack 

func LogStack(format string, a ...interface{})

func Panic 

func Panic(format string, a ...interface{})

func Recover 

func Recover()

func Trace 

func Trace(format string, a ...interface{})

Types

type Buffer 

type Buffer struct {
	// contains filtered or unexported fields
}

func NewBuffer 

func NewBuffer(sz int) *Buffer

func (*Buffer) Close 

func (b *Buffer) Close() bool

func (*Buffer) Len 

func (b *Buffer) Len() int

func (*Buffer) Pop 

func (b *Buffer) Pop() ([]byte, bool)

func (*Buffer) Put 

func (b *Buffer) Put(data []byte) bool

type Client 

type Client struct {
	// contains filtered or unexported fields
}

tunnel client

func NewClient 

func NewClient(listen, backend, secret string, tunnels uint) (*Client, error)

func (*Client) Start 

func (cli *Client) Start() error

Start .

func (*Client) Status 

func (cli *Client) Status()

type ClientHub 

type ClientHub struct {
	*Hub
	// contains filtered or unexported fields
}

ClientHub manages client links

type Cmd 

type Cmd struct {
	Cmd uint8  // control command
	Id  uint16 // id
}

type Hub 

type Hub struct {
	// contains filtered or unexported fields
}

func (*Hub) Close 

func (h *Hub) Close()

func (*Hub) Send 

func (h *Hub) Send(id uint16, data []byte) bool

func (*Hub) SendCmd 

func (h *Hub) SendCmd(id uint16, cmd uint8) bool

func (*Hub) Start 

func (h *Hub) Start()

func (*Hub) Status 

func (h *Hub) Status()

type HubItem 

type HubItem struct {
	*ClientHub
	// contains filtered or unexported fields
}

func (*HubItem) Status 

func (h *HubItem) Status()

type HubQueue 

type HubQueue []*HubItem

func (HubQueue) Len 

func (cq HubQueue) Len() int

func (HubQueue) Less 

func (cq HubQueue) Less(i, j int) bool

func (*HubQueue) Pop 

func (cq *HubQueue) Pop() interface{}

func (*HubQueue) Push 

func (cq *HubQueue) Push(x interface{})

func (HubQueue) Swap 

func (cq HubQueue) Swap(i, j int)

type IdAllocator 

type IdAllocator struct {
	// contains filtered or unexported fields
}

func (*IdAllocator) Acquire 

func (alloc *IdAllocator) Acquire() uint16

func (*IdAllocator) Release 

func (alloc *IdAllocator) Release(id uint16)

type MPool 

type MPool struct {
	*sync.Pool
	// contains filtered or unexported fields
}

func NewMPool 

func NewMPool(sz int) *MPool

func (*MPool) Get 

func (p *MPool) Get() []byte

func (*MPool) Put 

func (p *MPool) Put(x []byte)

type Server 

type Server struct {
	// contains filtered or unexported fields
}

tunnel server

func NewServer 

func NewServer(listen, backend, secret string) (*Server, error)

create a tunnel server

func (*Server) Start 

func (s *Server) Start() error

func (*Server) Status 

func (s *Server) Status()

type ServerHub 

type ServerHub struct {
	*Hub
	// contains filtered or unexported fields
}

server hub

type Taa 

type Taa struct {
	// contains filtered or unexported fields
}

gotunnel auth algorithm

func NewTaa 

func NewTaa(key string) *Taa

func (*Taa) CheckSignature 

func (a *Taa) CheckSignature(src []byte) bool

func (*Taa) ExchangeCipherBlock 

func (a *Taa) ExchangeCipherBlock(src []byte) ([]byte, bool)

exchange cipher block

func (*Taa) GenCipherBlock 

func (a *Taa) GenCipherBlock(token *authToken) []byte

generate cipher block

func (*Taa) GenToken 

func (a *Taa) GenToken()

generate new token

func (*Taa) GetRc4key 

func (a *Taa) GetRc4key() []byte

func (*Taa) VerifyCipherBlock 

func (a *Taa) VerifyCipherBlock(src []byte) bool

verify cipher block

type TcpListener 

type TcpListener struct {
	*net.TCPListener
}

func (*TcpListener) Accept 

func (l *TcpListener) Accept() (net.Conn, error)

type Tunnel 

type Tunnel struct {
	*TunnelConn
	// contains filtered or unexported fields
}

func (*Tunnel) ReadPacket 

func (tun *Tunnel) ReadPacket() (linkid uint16, data []byte, err error)

can't read concurrently

func (*Tunnel) String 

func (tun *Tunnel) String() string

func (*Tunnel) WritePacket 

func (tun *Tunnel) WritePacket(linkid uint16, data []byte) (err error)

can write concurrently

type TunnelConn 

type TunnelConn struct {
	net.Conn
	// contains filtered or unexported fields
}

func (*TunnelConn) Flush 

func (conn *TunnelConn) Flush() error

func (*TunnelConn) Read 

func (conn *TunnelConn) Read(b []byte) (int, error)

func (*TunnelConn) SetCipherKey 

func (conn *TunnelConn) SetCipherKey(key []byte)

func (*TunnelConn) Write 

func (conn *TunnelConn) Write(b []byte) (int, error)

Source Files

View all Source files

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