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Documentation

Index

• Constants
• func EnableUDPTProxy(conn *net.UDPConn) error
• func GetOrigDst(conn net.Conn) (string, error)
• func GetOrigDstFromOob(oob []byte) (*net.UDPAddr, error)
• func Getorigdst(fd uintptr) (string, error)

Constants

const GETSOCKOPT = syscall.SYS_GETSOCKOPT

const (
	SO_ORIGINAL_DST = 80 // from linux/include/uapi/linux/netfilter_ipv4.h
)

Functions

func EnableUDPTProxy

func EnableUDPTProxy(conn *net.UDPConn) error

EnableUDPTProxy enable tproxy for udp sockets at linux

func GetOrigDst

func GetOrigDst(conn net.Conn) (string, error)

Get the original destination of a TCP connection.

func GetOrigDstFromOob

func GetOrigDstFromOob(oob []byte) (*net.UDPAddr, error)

GetOrigDstFromOob get the original destination from oob data

func Getorigdst

func Getorigdst(fd uintptr) (string, error)

Call getorigdst() from linux/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c