v1.0.0

transport/internet/udp/hub_freebsd.go

@@ -0,0 +1,37 @@
+// +build freebsd
+
+package udp
+
+import (
+	"bytes"
+	"encoding/gob"
+	"io"
+
+	"github.com/xtls/xray-core/v1/common/net"
+	"github.com/xtls/xray-core/v1/transport/internet"
+)
+
+// RetrieveOriginalDest from stored laddr, caddr
+func RetrieveOriginalDest(oob []byte) net.Destination {
+	dec := gob.NewDecoder(bytes.NewBuffer(oob))
+	var la, ra net.UDPAddr
+	dec.Decode(&la)
+	dec.Decode(&ra)
+	ip, port, err := internet.OriginalDst(&la, &ra)
+	if err != nil {
+		return net.Destination{}
+	}
+	return net.UDPDestination(net.IPAddress(ip), net.Port(port))
+}
+
+// ReadUDPMsg stores laddr, caddr for later use
+func ReadUDPMsg(conn *net.UDPConn, payload []byte, oob []byte) (int, int, int, *net.UDPAddr, error) {
+	nBytes, addr, err := conn.ReadFromUDP(payload)
+	var buf bytes.Buffer
+	enc := gob.NewEncoder(&buf)
+	enc.Encode(conn.LocalAddr().(*net.UDPAddr))
+	enc.Encode(addr)
+	var reader io.Reader = &buf
+	noob, _ := reader.Read(oob)
+	return nBytes, noob, 0, addr, err
+}