proxylib

Documentation

Index

• Constants
• func CloseConnection(cnx io.Closer, log Logger, id string, name string)
• func FerryBytes(client *net.TCPConn, server *net.TCPConn, cnxId string, ...)
• func OriginalDestination(cnxId string, conn *net.Conn) (string, error)
• func RandomString(strlen int) string
• type Logger

Constants

const (
	ConnectionClosedErr             = "use of closed network connection"
	ConnectionResetErr              = "connection reset by peer"
	DefaultMaxTeardownTimeInSeconds = 10
)

const SO_ORIGINAL_DST = 80

Functions

func CloseConnection

func CloseConnection(cnx io.Closer, log Logger, id string, name string)

func FerryBytes

func FerryBytes(
	client *net.TCPConn,
	server *net.TCPConn,
	cnxId string,
	maxTeardownTimeInSecs int,
)

FerryBytes copies bytes between two sockets. Tries to handle disconnections safely. When one socket disconnects, a CloseWrite() is done to the other socket, and a teardown timer started with the specified timeout value (if value is zero, a default value of 10 seconds is used). If a graceful disconnect from the other socket is not detected within that period, the other end is forcefully closed.

func OriginalDestination

func OriginalDestination(cnxId string, conn *net.Conn) (string, error)

OriginalDestination returns an intercepted connection's original destination. Adapted from https://play.golang.org/p/GMAaKucHOr

func RandomString

func RandomString(strlen int) string

Types

type Logger

type Logger interface {
	Printf(format string, v ...interface{})
}