Merge tag 'v1.11.14' into HEAD

common/dialer/default.go

@@ -100,10 +100,6 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 			} else if networkManager.AutoDetectInterface() {
 				if platformInterface != nil {
 					networkStrategy = (*C.NetworkStrategy)(options.NetworkStrategy)
-					if networkStrategy == nil {
-						networkStrategy = common.Ptr(C.NetworkStrategyDefault)
-						defaultNetworkStrategy = true
-					}
 					networkType = common.Map(options.NetworkType, option.InterfaceType.Build)
 					fallbackNetworkType = common.Map(options.FallbackNetworkType, option.InterfaceType.Build)
 					if networkStrategy == nil && len(networkType) == 0 && len(fallbackNetworkType) == 0 {
@@ -115,6 +111,10 @@ func NewDefault(ctx context.Context, options option.DialerOptions) (*DefaultDial
 					if networkFallbackDelay == 0 && defaultOptions.FallbackDelay != 0 {
 						networkFallbackDelay = defaultOptions.FallbackDelay
 					}
+					if networkStrategy == nil {
+						networkStrategy = common.Ptr(C.NetworkStrategyDefault)
+						defaultNetworkStrategy = true
+					}
 					bindFunc := networkManager.ProtectFunc()
 					dialer.Control = control.Append(dialer.Control, bindFunc)
 					listener.Control = control.Append(listener.Control, bindFunc)

common/dialer/tfo.go

@@ -10,9 +10,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/bufio"
-	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 
@@ -26,7 +24,9 @@ type slowOpenConn struct {
 	destination M.Socksaddr
 	conn        net.Conn
 	create      chan struct{}
+	done        chan struct{}
 	access      sync.Mutex
+	closeOnce   sync.Once
 	err         error
 }
 
@@ -45,6 +45,7 @@ func DialSlowContext(dialer *tcpDialer, ctx context.Context, network string, des
 		network:     network,
 		destination: destination,
 		create:      make(chan struct{}),
+		done:        make(chan struct{}),
 	}, nil
 }
 
@@ -55,8 +56,8 @@ func (c *slowOpenConn) Read(b []byte) (n int, err error) {
 			if c.err != nil {
 				return 0, c.err
 			}
-		case <-c.ctx.Done():
-			return 0, c.ctx.Err()
+		case <-c.done:
+			return 0, os.ErrClosed
 		}
 	}
 	return c.conn.Read(b)
@@ -74,12 +75,15 @@ func (c *slowOpenConn) Write(b []byte) (n int, err error) {
 			return 0, c.err
 		}
 		return c.conn.Write(b)
+	case <-c.done:
+		return 0, os.ErrClosed
 	default:
 	}
-	c.conn, err = c.dialer.DialContext(c.ctx, c.network, c.destination.String(), b)
+	conn, err := c.dialer.DialContext(c.ctx, c.network, c.destination.String(), b)
 	if err != nil {
-		c.conn = nil
-		c.err = E.Cause(err, "dial tcp fast open")
+		c.err = err
+	} else {
+		c.conn = conn
 	}
 	n = len(b)
 	close(c.create)
@@ -87,7 +91,13 @@ func (c *slowOpenConn) Write(b []byte) (n int, err error) {
 }
 
 func (c *slowOpenConn) Close() error {
-	return common.Close(c.conn)
+	c.closeOnce.Do(func() {
+		close(c.done)
+		if c.conn != nil {
+			c.conn.Close()
+		}
+	})
+	return nil
 }
 
 func (c *slowOpenConn) LocalAddr() net.Addr {
@@ -152,8 +162,8 @@ func (c *slowOpenConn) WriteTo(w io.Writer) (n int64, err error) {
 			if c.err != nil {
 				return 0, c.err
 			}
-		case <-c.ctx.Done():
-			return 0, c.ctx.Err()
+		case <-c.done:
+			return 0, c.err
 		}
 	}
 	return bufio.Copy(w, c.conn)

common/process/searcher_darwin.go

@@ -76,6 +76,8 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 		// rup8(sizeof(xtcpcb_n))
 		itemSize += 208
 	}
+
+	var fallbackUDPProcess string
 	// skip the first xinpgen(24 bytes) block
 	for i := 24; i+itemSize <= len(buf); i += itemSize {
 		// offset of xinpcb_n and xsocket_n
@@ -90,10 +92,12 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 		flag := buf[inp+44]
 
 		var srcIP netip.Addr
+		srcIsIPv4 := false
 		switch {
 		case flag&0x1 > 0 && isIPv4:
 			// ipv4
 			srcIP = netip.AddrFrom4(*(*[4]byte)(buf[inp+76 : inp+80]))
+			srcIsIPv4 = true
 		case flag&0x2 > 0 && !isIPv4:
 			// ipv6
 			srcIP = netip.AddrFrom16(*(*[16]byte)(buf[inp+64 : inp+80]))
@@ -101,13 +105,21 @@ func findProcessName(network string, ip netip.Addr, port int) (string, error) {
 			continue
 		}
 
-		if ip != srcIP {
-			continue
+		if ip == srcIP {
+			// xsocket_n.so_last_pid
+			pid := readNativeUint32(buf[so+68 : so+72])
+			return getExecPathFromPID(pid)
 		}
 
-		// xsocket_n.so_last_pid
-		pid := readNativeUint32(buf[so+68 : so+72])
-		return getExecPathFromPID(pid)
+		// udp packet connection may be not equal with srcIP
+		if network == N.NetworkUDP && srcIP.IsUnspecified() && isIPv4 == srcIsIPv4 {
+			pid := readNativeUint32(buf[so+68 : so+72])
+			fallbackUDPProcess, _ = getExecPathFromPID(pid)
+		}
+	}
+
+	if network == N.NetworkUDP && len(fallbackUDPProcess) > 0 {
+		return fallbackUDPProcess, nil
 	}
 
 	return "", ErrNotFound