Fix h2mux RST_STREAM on half-close

Author: cfal

client_conn.go

@@ -93,6 +93,10 @@ func (c *clientConn) Upstream() any {
 	return c.Conn
 }
 
+func (c *clientConn) CloseWrite() error {
+	return N.CloseWrite(c.Conn)
+}
+
 var _ N.NetPacketConn = (*clientPacketConn)(nil)
 
 type clientPacketConn struct {

error.go

@@ -5,6 +5,7 @@ import (
 	"net"
 
 	"github.com/hashicorp/yamux"
+	N "github.com/sagernet/sing/common/network"
 )
 
 type wrapStream struct {
@@ -23,6 +24,10 @@ func (w *wrapStream) Write(p []byte) (n int, err error) {
 	return
 }
 
+func (w *wrapStream) CloseWrite() error {
+	return N.CloseWrite(w.Conn)
+}
+
 func (w *wrapStream) Upstream() any {
 	return w.Conn
 }

h2mux_conn.go

@@ -64,6 +64,10 @@ func (c *httpConn) Close() error {
 	return common.Close(c.reader, c.writer)
 }
 
+func (c *httpConn) CloseWrite() error {
+	return common.Close(c.writer)
+}
+
 func (c *httpConn) LocalAddr() net.Addr {
 	return M.Socksaddr{}
 }