Update BBR and Hysteria congestion control & Migrate legacy Hysteria protocol to library

transport/v2rayquic/client.go

@@ -12,7 +12,6 @@ import (
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-box/transport/hysteria"
 	"github.com/sagernet/sing-quic"
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
@@ -93,7 +92,7 @@ func (c *Client) DialContext(ctx context.Context) (net.Conn, error) {
 	if err != nil {
 		return nil, err
 	}
-	return &hysteria.StreamWrapper{Conn: conn, Stream: stream}, nil
+	return &StreamWrapper{Conn: conn, Stream: stream}, nil
 }
 
 func (c *Client) Close() error {

transport/v2rayquic/server.go

@@ -12,7 +12,6 @@ import (
 	"github.com/sagernet/sing-box/common/tls"
 	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing-box/transport/hysteria"
 	"github.com/sagernet/sing-quic"
 	"github.com/sagernet/sing/common"
 	M "github.com/sagernet/sing/common/metadata"
@@ -86,7 +85,7 @@ func (s *Server) streamAcceptLoop(conn quic.Connection) error {
 		if err != nil {
 			return err
 		}
-		go s.handler.NewConnection(conn.Context(), &hysteria.StreamWrapper{Conn: conn, Stream: stream}, M.Metadata{})
+		go s.handler.NewConnection(conn.Context(), &StreamWrapper{Conn: conn, Stream: stream}, M.Metadata{})
 	}
 }
 

transport/v2rayquic/stream.go

@@ -0,0 +1,41 @@
+package v2rayquic
+
+import (
+	"net"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/sing/common/baderror"
+)
+
+type StreamWrapper struct {
+	Conn quic.Connection
+	quic.Stream
+}
+
+func (s *StreamWrapper) Read(p []byte) (n int, err error) {
+	n, err = s.Stream.Read(p)
+	return n, baderror.WrapQUIC(err)
+}
+
+func (s *StreamWrapper) Write(p []byte) (n int, err error) {
+	n, err = s.Stream.Write(p)
+	return n, baderror.WrapQUIC(err)
+}
+
+func (s *StreamWrapper) LocalAddr() net.Addr {
+	return s.Conn.LocalAddr()
+}
+
+func (s *StreamWrapper) RemoteAddr() net.Addr {
+	return s.Conn.RemoteAddr()
+}
+
+func (s *StreamWrapper) Upstream() any {
+	return s.Stream
+}
+
+func (s *StreamWrapper) Close() error {
+	s.CancelRead(0)
+	s.Stream.Close()
+	return nil
+}