clash/proxy/socks/utils.go

39 lines
727 B
Go

package socks
import (
"net"
"github.com/Dreamacro/clash/common/pool"
"github.com/Dreamacro/clash/component/socks5"
)
type packet struct {
pc net.PacketConn
rAddr net.Addr
payload []byte
bufRef []byte
}
func (c *packet) Data() []byte {
return c.payload
}
// WriteBack wirtes UDP packet with source(ip, port) = `addr`
func (c *packet) WriteBack(b []byte, addr net.Addr) (n int, err error) {
packet, err := socks5.EncodeUDPPacket(socks5.ParseAddrToSocksAddr(addr), b)
if err != nil {
return
}
return c.pc.WriteTo(packet, c.rAddr)
}
// LocalAddr returns the source IP/Port of UDP Packet
func (c *packet) LocalAddr() net.Addr {
return c.rAddr
}
func (c *packet) Drop() {
pool.Put(c.bufRef)
return
}