Add dial parallel for outbound dialer

dns/client.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"net"
 	"net/netip"
+	"strings"
 	"time"
 
 	"github.com/sagernet/sing/common"
@@ -71,11 +72,14 @@ func (c *Client) Exchange(ctx context.Context, transport adapter.DNSTransport, m
 	if !c.disableCache {
 		c.storeCache(question, response)
 	}
-	return message, err
+	return response, err
 }
 
 func (c *Client) Lookup(ctx context.Context, transport adapter.DNSTransport, domain string, strategy C.DomainStrategy) ([]netip.Addr, error) {
-	dnsName, err := dnsmessage.NewName(domain)
+	if strings.HasPrefix(domain, ".") {
+		domain = domain[:len(domain)-1]
+	}
+	dnsName, err := dnsmessage.NewName(domain + ".")
 	if err != nil {
 		return nil, wrapError(err)
 	}

dns/transport.go

@@ -22,8 +22,15 @@ func NewTransport(ctx context.Context, dialer N.Dialer, logger log.Logger, addre
 	}
 	host := serverURL.Hostname()
 	port := serverURL.Port()
-	if port == "" {
-		port = "53"
+	switch serverURL.Scheme {
+	case "tls":
+		if port == "" {
+			port = "853"
+		}
+	default:
+		if port == "" {
+			port = "53"
+		}
 	}
 	destination := M.ParseSocksaddrHostPortStr(host, port)
 	switch serverURL.Scheme {

dns/transport_tcp.go

@@ -77,10 +77,9 @@ func (t *TCPTransport) offer() (*dnsConnection, error) {
 func (t *TCPTransport) newConnection(conn *dnsConnection) {
 	defer close(conn.done)
 	defer conn.Close()
-	ctx, cancel := context.WithCancel(t.ctx)
-	err := task.Any(t.ctx, func() error {
+	err := task.Any(t.ctx, func(ctx context.Context) error {
 		return t.loopIn(conn)
-	}, func() error {
+	}, func(ctx context.Context) error {
 		select {
 		case <-ctx.Done():
 			return nil
@@ -88,7 +87,6 @@ func (t *TCPTransport) newConnection(conn *dnsConnection) {
 			return os.ErrClosed
 		}
 	})
-	cancel()
 	conn.err = err
 	if err != nil {
 		t.logger.Debug("connection closed: ", err)

dns/transport_tls.go

@@ -85,10 +85,9 @@ func (t *TLSTransport) offer(ctx context.Context) (*dnsConnection, error) {
 func (t *TLSTransport) newConnection(conn *dnsConnection) {
 	defer close(conn.done)
 	defer conn.Close()
-	ctx, cancel := context.WithCancel(t.ctx)
-	err := task.Any(t.ctx, func() error {
+	err := task.Any(t.ctx, func(ctx context.Context) error {
 		return t.loopIn(conn)
-	}, func() error {
+	}, func(ctx context.Context) error {
 		select {
 		case <-ctx.Done():
 			return nil
@@ -96,7 +95,6 @@ func (t *TLSTransport) newConnection(conn *dnsConnection) {
 			return os.ErrClosed
 		}
 	})
-	cancel()
 	conn.err = err
 	if err != nil {
 		t.logger.Debug("connection closed: ", err)

dns/transport_udp.go

@@ -73,10 +73,9 @@ func (t *UDPTransport) offer() (*dnsConnection, error) {
 func (t *UDPTransport) newConnection(conn *dnsConnection) {
 	defer close(conn.done)
 	defer conn.Close()
-	ctx, cancel := context.WithCancel(t.ctx)
-	err := task.Any(t.ctx, func() error {
+	err := task.Any(t.ctx, func(ctx context.Context) error {
 		return t.loopIn(conn)
-	}, func() error {
+	}, func(ctx context.Context) error {
 		select {
 		case <-ctx.Done():
 			return nil
@@ -84,7 +83,6 @@ func (t *UDPTransport) newConnection(conn *dnsConnection) {
 			return os.ErrClosed
 		}
 	})
-	cancel()
 	conn.err = err
 	if err != nil {
 		t.logger.Debug("connection closed: ", err)