feat: support tuicV5

transport/tuic/common/congestion.go

@@ -0,0 +1,44 @@
+package common
+
+import (
+	"github.com/Dreamacro/clash/transport/tuic/congestion"
+
+	"github.com/metacubex/quic-go"
+)
+
+const (
+	DefaultStreamReceiveWindow     = 15728640 // 15 MB/s
+	DefaultConnectionReceiveWindow = 67108864 // 64 MB/s
+)
+
+func SetCongestionController(quicConn quic.Connection, cc string) {
+	switch cc {
+	case "cubic":
+		quicConn.SetCongestionControl(
+			congestion.NewCubicSender(
+				congestion.DefaultClock{},
+				congestion.GetInitialPacketSize(quicConn.RemoteAddr()),
+				false,
+				nil,
+			),
+		)
+	case "new_reno":
+		quicConn.SetCongestionControl(
+			congestion.NewCubicSender(
+				congestion.DefaultClock{},
+				congestion.GetInitialPacketSize(quicConn.RemoteAddr()),
+				true,
+				nil,
+			),
+		)
+	case "bbr":
+		quicConn.SetCongestionControl(
+			congestion.NewBBRSender(
+				congestion.DefaultClock{},
+				congestion.GetInitialPacketSize(quicConn.RemoteAddr()),
+				congestion.InitialCongestionWindow*congestion.InitialMaxDatagramSize,
+				congestion.DefaultBBRMaxCongestionWindow*congestion.InitialMaxDatagramSize,
+			),
+		)
+	}
+}