tproxy

func DialUDP ¶

func DialUDP(network string, laddr *net.UDPAddr, raddr *net.UDPAddr) (*net.UDPConn, error)

DialUDP connects to the remote address raddr on the network net, which must be "udp", "udp4", or "udp6". If laddr is not nil, it is used as the local address for the connection.

func NewTproxy ¶

func NewTproxy(opt *cl.Inbound_Tproxy) func(netapi.Listener) (netapi.Accepter, error)

func ReadFromUDP ¶

func ReadFromUDP(conn *net.UDPConn, b []byte) (n int, srcAddr *net.UDPAddr, dstAddr *net.UDPAddr, err error)

ReadFromUDP reads a UDP packet from c, copying the payload into b. It returns the number of bytes copied into b and the return address that was on the packet.

Out-of-band data is also read in so that the original destination address can be identified and parsed.