1 // Copyright 2012 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
27 // TLS 1.3 is opt-in for Go 1.12, but we want to run most tests with it enabled.
28 // TestTLS13Switch below tests the disabled behavior. See Issue 30055.
29 tls13Support.Do(func() {}) // defuse the sync.Once
30 tls13Support.cached = true
33 var rsaCertPEM = `-----BEGIN CERTIFICATE-----
34 MIIB0zCCAX2gAwIBAgIJAI/M7BYjwB+uMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV
35 BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX
36 aWRnaXRzIFB0eSBMdGQwHhcNMTIwOTEyMjE1MjAyWhcNMTUwOTEyMjE1MjAyWjBF
37 MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50
38 ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBANLJ
39 hPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wok/4xIA+ui35/MmNa
40 rtNuC+BdZ1tMuVCPFZcCAwEAAaNQME4wHQYDVR0OBBYEFJvKs8RfJaXTH08W+SGv
41 zQyKn0H8MB8GA1UdIwQYMBaAFJvKs8RfJaXTH08W+SGvzQyKn0H8MAwGA1UdEwQF
42 MAMBAf8wDQYJKoZIhvcNAQEFBQADQQBJlffJHybjDGxRMqaRmDhX0+6v02TUKZsW
43 r5QuVbpQhH6u+0UgcW0jp9QwpxoPTLTWGXEWBBBurxFwiCBhkQ+V
44 -----END CERTIFICATE-----
47 var rsaKeyPEM = `-----BEGIN RSA PRIVATE KEY-----
48 MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
49 k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
50 6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
51 MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
52 SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
53 xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
54 D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
55 -----END RSA PRIVATE KEY-----
58 // keyPEM is the same as rsaKeyPEM, but declares itself as just
59 // "PRIVATE KEY", not "RSA PRIVATE KEY". https://golang.org/issue/4477
60 var keyPEM = `-----BEGIN PRIVATE KEY-----
61 MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
62 k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
63 6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
64 MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
65 SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
66 xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
67 D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
68 -----END PRIVATE KEY-----
71 var ecdsaCertPEM = `-----BEGIN CERTIFICATE-----
72 MIIB/jCCAWICCQDscdUxw16XFDAJBgcqhkjOPQQBMEUxCzAJBgNVBAYTAkFVMRMw
73 EQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0
74 eSBMdGQwHhcNMTIxMTE0MTI0MDQ4WhcNMTUxMTE0MTI0MDQ4WjBFMQswCQYDVQQG
75 EwJBVTETMBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lk
76 Z2l0cyBQdHkgTHRkMIGbMBAGByqGSM49AgEGBSuBBAAjA4GGAAQBY9+my9OoeSUR
77 lDQdV/x8LsOuLilthhiS1Tz4aGDHIPwC1mlvnf7fg5lecYpMCrLLhauAc1UJXcgl
78 01xoLuzgtAEAgv2P/jgytzRSpUYvgLBt1UA0leLYBy6mQQbrNEuqT3INapKIcUv8
79 XxYP0xMEUksLPq6Ca+CRSqTtrd/23uTnapkwCQYHKoZIzj0EAQOBigAwgYYCQXJo
80 A7Sl2nLVf+4Iu/tAX/IF4MavARKC4PPHK3zfuGfPR3oCCcsAoz3kAzOeijvd0iXb
81 H5jBImIxPL4WxQNiBTexAkF8D1EtpYuWdlVQ80/h/f4pBcGiXPqX5h2PQSQY7hP1
82 +jwM1FGS4fREIOvlBYr/SzzQRtwrvrzGYxDEDbsC0ZGRnA==
83 -----END CERTIFICATE-----
86 var ecdsaKeyPEM = `-----BEGIN EC PARAMETERS-----
88 -----END EC PARAMETERS-----
89 -----BEGIN EC PRIVATE KEY-----
90 MIHcAgEBBEIBrsoKp0oqcv6/JovJJDoDVSGWdirrkgCWxrprGlzB9o0X8fV675X0
91 NwuBenXFfeZvVcwluO7/Q9wkYoPd/t3jGImgBwYFK4EEACOhgYkDgYYABAFj36bL
92 06h5JRGUNB1X/Hwuw64uKW2GGJLVPPhoYMcg/ALWaW+d/t+DmV5xikwKssuFq4Bz
93 VQldyCXTXGgu7OC0AQCC/Y/+ODK3NFKlRi+AsG3VQDSV4tgHLqZBBus0S6pPcg1q
94 kohxS/xfFg/TEwRSSws+roJr4JFKpO2t3/be5OdqmQ==
95 -----END EC PRIVATE KEY-----
98 var keyPairTests = []struct {
103 {"ECDSA", ecdsaCertPEM, ecdsaKeyPEM},
104 {"RSA", rsaCertPEM, rsaKeyPEM},
105 {"RSA-untyped", rsaCertPEM, keyPEM}, // golang.org/issue/4477
108 func TestX509KeyPair(t *testing.T) {
111 for _, test := range keyPairTests {
112 pem = []byte(test.cert + test.key)
113 if _, err := X509KeyPair(pem, pem); err != nil {
114 t.Errorf("Failed to load %s cert followed by %s key: %s", test.algo, test.algo, err)
116 pem = []byte(test.key + test.cert)
117 if _, err := X509KeyPair(pem, pem); err != nil {
118 t.Errorf("Failed to load %s key followed by %s cert: %s", test.algo, test.algo, err)
123 func TestX509KeyPairErrors(t *testing.T) {
124 _, err := X509KeyPair([]byte(rsaKeyPEM), []byte(rsaCertPEM))
126 t.Fatalf("X509KeyPair didn't return an error when arguments were switched")
128 if subStr := "been switched"; !strings.Contains(err.Error(), subStr) {
129 t.Fatalf("Expected %q in the error when switching arguments to X509KeyPair, but the error was %q", subStr, err)
132 _, err = X509KeyPair([]byte(rsaCertPEM), []byte(rsaCertPEM))
134 t.Fatalf("X509KeyPair didn't return an error when both arguments were certificates")
136 if subStr := "certificate"; !strings.Contains(err.Error(), subStr) {
137 t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were certificates, but the error was %q", subStr, err)
140 const nonsensePEM = `
141 -----BEGIN NONSENSE-----
143 -----END NONSENSE-----
146 _, err = X509KeyPair([]byte(nonsensePEM), []byte(nonsensePEM))
148 t.Fatalf("X509KeyPair didn't return an error when both arguments were nonsense")
150 if subStr := "NONSENSE"; !strings.Contains(err.Error(), subStr) {
151 t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were nonsense, but the error was %q", subStr, err)
155 func TestX509MixedKeyPair(t *testing.T) {
156 if _, err := X509KeyPair([]byte(rsaCertPEM), []byte(ecdsaKeyPEM)); err == nil {
157 t.Error("Load of RSA certificate succeeded with ECDSA private key")
159 if _, err := X509KeyPair([]byte(ecdsaCertPEM), []byte(rsaKeyPEM)); err == nil {
160 t.Error("Load of ECDSA certificate succeeded with RSA private key")
164 func newLocalListener(t testing.TB) net.Listener {
165 ln, err := net.Listen("tcp", "127.0.0.1:0")
167 ln, err = net.Listen("tcp6", "[::1]:0")
175 func TestDialTimeout(t *testing.T) {
177 t.Skip("skipping in short mode")
179 listener := newLocalListener(t)
181 addr := listener.Addr().String()
182 defer listener.Close()
184 complete := make(chan bool)
185 defer close(complete)
188 conn, err := listener.Accept()
197 dialer := &net.Dialer{
198 Timeout: 10 * time.Millisecond,
202 if _, err = DialWithDialer(dialer, "tcp", addr, nil); err == nil {
203 t.Fatal("DialWithTimeout completed successfully")
206 if !isTimeoutError(err) {
207 t.Errorf("resulting error not a timeout: %v\nType %T: %#v", err, err, err)
211 func isTimeoutError(err error) bool {
212 if ne, ok := err.(net.Error); ok {
218 // tests that Conn.Read returns (non-zero, io.EOF) instead of
219 // (non-zero, nil) when a Close (alertCloseNotify) is sitting right
220 // behind the application data in the buffer.
221 func TestConnReadNonzeroAndEOF(t *testing.T) {
222 // This test is racy: it assumes that after a write to a
223 // localhost TCP connection, the peer TCP connection can
224 // immediately read it. Because it's racy, we skip this test
225 // in short mode, and then retry it several times with an
226 // increasing sleep in between our final write (via srv.Close
227 // below) and the following read.
229 t.Skip("skipping in short mode")
232 for delay := time.Millisecond; delay <= 64*time.Millisecond; delay *= 2 {
233 if err = testConnReadNonzeroAndEOF(t, delay); err == nil {
240 func testConnReadNonzeroAndEOF(t *testing.T, delay time.Duration) error {
241 ln := newLocalListener(t)
244 srvCh := make(chan *Conn, 1)
247 sconn, err := ln.Accept()
253 serverConfig := testConfig.Clone()
254 srv := Server(sconn, serverConfig)
255 if err := srv.Handshake(); err != nil {
256 serr = fmt.Errorf("handshake: %v", err)
263 clientConfig := testConfig.Clone()
264 // In TLS 1.3, alerts are encrypted and disguised as application data, so
265 // the opportunistic peek won't work.
266 clientConfig.MaxVersion = VersionTLS12
267 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
278 buf := make([]byte, 6)
280 srv.Write([]byte("foobar"))
281 n, err := conn.Read(buf)
282 if n != 6 || err != nil || string(buf) != "foobar" {
283 return fmt.Errorf("Read = %d, %v, data %q; want 6, nil, foobar", n, err, buf)
286 srv.Write([]byte("abcdef"))
289 n, err = conn.Read(buf)
290 if n != 6 || string(buf) != "abcdef" {
291 return fmt.Errorf("Read = %d, buf= %q; want 6, abcdef", n, buf)
294 return fmt.Errorf("Second Read error = %v; want io.EOF", err)
299 func TestTLSUniqueMatches(t *testing.T) {
300 ln := newLocalListener(t)
303 serverTLSUniques := make(chan []byte)
305 for i := 0; i < 2; i++ {
306 sconn, err := ln.Accept()
311 serverConfig := testConfig.Clone()
312 serverConfig.MaxVersion = VersionTLS12 // TLSUnique is not defined in TLS 1.3
313 srv := Server(sconn, serverConfig)
314 if err := srv.Handshake(); err != nil {
318 serverTLSUniques <- srv.ConnectionState().TLSUnique
322 clientConfig := testConfig.Clone()
323 clientConfig.ClientSessionCache = NewLRUClientSessionCache(1)
324 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
328 if !bytes.Equal(conn.ConnectionState().TLSUnique, <-serverTLSUniques) {
329 t.Error("client and server channel bindings differ")
333 conn, err = Dial("tcp", ln.Addr().String(), clientConfig)
338 if !conn.ConnectionState().DidResume {
339 t.Error("second session did not use resumption")
341 if !bytes.Equal(conn.ConnectionState().TLSUnique, <-serverTLSUniques) {
342 t.Error("client and server channel bindings differ when session resumption is used")
346 func TestVerifyHostname(t *testing.T) {
347 testenv.MustHaveExternalNetwork(t)
349 c, err := Dial("tcp", "www.google.com:https", nil)
353 if err := c.VerifyHostname("www.google.com"); err != nil {
354 t.Fatalf("verify www.google.com: %v", err)
356 if err := c.VerifyHostname("www.yahoo.com"); err == nil {
357 t.Fatalf("verify www.yahoo.com succeeded")
360 c, err = Dial("tcp", "www.google.com:https", &Config{InsecureSkipVerify: true})
364 if err := c.VerifyHostname("www.google.com"); err == nil {
365 t.Fatalf("verify www.google.com succeeded with InsecureSkipVerify=true")
369 func TestVerifyHostnameResumed(t *testing.T) {
370 t.Run("TLSv12", func(t *testing.T) { testVerifyHostnameResumed(t, VersionTLS12) })
371 t.Run("TLSv13", func(t *testing.T) { testVerifyHostnameResumed(t, VersionTLS13) })
374 func testVerifyHostnameResumed(t *testing.T, version uint16) {
375 testenv.MustHaveExternalNetwork(t)
379 ClientSessionCache: NewLRUClientSessionCache(32),
381 for i := 0; i < 2; i++ {
382 c, err := Dial("tcp", "mail.google.com:https", config)
384 t.Fatalf("Dial #%d: %v", i, err)
386 cs := c.ConnectionState()
387 if i > 0 && !cs.DidResume {
388 t.Fatalf("Subsequent connection unexpectedly didn't resume")
390 if cs.Version != version {
391 t.Fatalf("Unexpectedly negotiated version %x", cs.Version)
393 if cs.VerifiedChains == nil {
394 t.Fatalf("Dial #%d: cs.VerifiedChains == nil", i)
396 if err := c.VerifyHostname("mail.google.com"); err != nil {
397 t.Fatalf("verify mail.google.com #%d: %v", i, err)
399 // Give the client a chance to read the server session tickets.
400 c.SetReadDeadline(time.Now().Add(500 * time.Millisecond))
401 if _, err := c.Read(make([]byte, 1)); err != nil {
402 if err, ok := err.(net.Error); !ok || !err.Timeout() {
410 func TestConnCloseBreakingWrite(t *testing.T) {
411 ln := newLocalListener(t)
414 srvCh := make(chan *Conn, 1)
419 sconn, err = ln.Accept()
425 serverConfig := testConfig.Clone()
426 srv := Server(sconn, serverConfig)
427 if err := srv.Handshake(); err != nil {
428 serr = fmt.Errorf("handshake: %v", err)
435 cconn, err := net.Dial("tcp", ln.Addr().String())
441 conn := &changeImplConn{
445 clientConfig := testConfig.Clone()
446 tconn := Client(conn, clientConfig)
447 if err := tconn.Handshake(); err != nil {
457 connClosed := make(chan struct{})
458 conn.closeFunc = func() error {
463 inWrite := make(chan bool, 1)
464 var errConnClosed = errors.New("conn closed for test")
465 conn.writeFunc = func(p []byte) (n int, err error) {
468 return 0, errConnClosed
471 closeReturned := make(chan bool, 1)
474 tconn.Close() // test that this doesn't block forever.
475 closeReturned <- true
478 _, err = tconn.Write([]byte("foo"))
479 if err != errConnClosed {
480 t.Errorf("Write error = %v; want errConnClosed", err)
484 if err := tconn.Close(); err != errClosed {
485 t.Errorf("Close error = %v; want errClosed", err)
489 func TestConnCloseWrite(t *testing.T) {
490 ln := newLocalListener(t)
493 clientDoneChan := make(chan struct{})
495 serverCloseWrite := func() error {
496 sconn, err := ln.Accept()
498 return fmt.Errorf("accept: %v", err)
502 serverConfig := testConfig.Clone()
503 srv := Server(sconn, serverConfig)
504 if err := srv.Handshake(); err != nil {
505 return fmt.Errorf("handshake: %v", err)
509 data, err := ioutil.ReadAll(srv)
514 return fmt.Errorf("Read data = %q; want nothing", data)
517 if err := srv.CloseWrite(); err != nil {
518 return fmt.Errorf("server CloseWrite: %v", err)
521 // Wait for clientCloseWrite to finish, so we know we
522 // tested the CloseWrite before we defer the
523 // sconn.Close above, which would also cause the
524 // client to unblock like CloseWrite.
529 clientCloseWrite := func() error {
530 defer close(clientDoneChan)
532 clientConfig := testConfig.Clone()
533 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
537 if err := conn.Handshake(); err != nil {
542 if err := conn.CloseWrite(); err != nil {
543 return fmt.Errorf("client CloseWrite: %v", err)
546 if _, err := conn.Write([]byte{0}); err != errShutdown {
547 return fmt.Errorf("CloseWrite error = %v; want errShutdown", err)
550 data, err := ioutil.ReadAll(conn)
555 return fmt.Errorf("Read data = %q; want nothing", data)
560 errChan := make(chan error, 2)
562 go func() { errChan <- serverCloseWrite() }()
563 go func() { errChan <- clientCloseWrite() }()
565 for i := 0; i < 2; i++ {
567 case err := <-errChan:
571 case <-time.After(10 * time.Second):
576 // Also test CloseWrite being called before the handshake is
579 ln2 := newLocalListener(t)
582 netConn, err := net.Dial("tcp", ln2.Addr().String())
586 defer netConn.Close()
587 conn := Client(netConn, testConfig.Clone())
589 if err := conn.CloseWrite(); err != errEarlyCloseWrite {
590 t.Errorf("CloseWrite error = %v; want errEarlyCloseWrite", err)
595 func TestWarningAlertFlood(t *testing.T) {
596 ln := newLocalListener(t)
599 server := func() error {
600 sconn, err := ln.Accept()
602 return fmt.Errorf("accept: %v", err)
606 serverConfig := testConfig.Clone()
607 srv := Server(sconn, serverConfig)
608 if err := srv.Handshake(); err != nil {
609 return fmt.Errorf("handshake: %v", err)
613 _, err = ioutil.ReadAll(srv)
615 return errors.New("unexpected lack of error from server")
617 const expected = "too many ignored"
618 if str := err.Error(); !strings.Contains(str, expected) {
619 return fmt.Errorf("expected error containing %q, but saw: %s", expected, str)
625 errChan := make(chan error, 1)
626 go func() { errChan <- server() }()
628 clientConfig := testConfig.Clone()
629 clientConfig.MaxVersion = VersionTLS12 // there are no warning alerts in TLS 1.3
630 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
635 if err := conn.Handshake(); err != nil {
639 for i := 0; i < maxUselessRecords+1; i++ {
640 conn.sendAlert(alertNoRenegotiation)
643 if err := <-errChan; err != nil {
648 func TestCloneFuncFields(t *testing.T) {
649 const expectedCount = 5
653 Time: func() time.Time {
657 GetCertificate: func(*ClientHelloInfo) (*Certificate, error) {
661 GetClientCertificate: func(*CertificateRequestInfo) (*Certificate, error) {
665 GetConfigForClient: func(*ClientHelloInfo) (*Config, error) {
669 VerifyPeerCertificate: func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
678 c2.GetCertificate(nil)
679 c2.GetClientCertificate(nil)
680 c2.GetConfigForClient(nil)
681 c2.VerifyPeerCertificate(nil, nil)
683 if called != (1<<expectedCount)-1 {
684 t.Fatalf("expected %d calls but saw calls %b", expectedCount, called)
688 func TestCloneNonFuncFields(t *testing.T) {
690 v := reflect.ValueOf(&c1).Elem()
693 for i := 0; i < typ.NumField(); i++ {
696 // unexported field; not cloned.
700 // testing/quick can't handle functions or interfaces and so
702 switch fn := typ.Field(i).Name; fn {
704 f.Set(reflect.ValueOf(io.Reader(os.Stdin)))
705 case "Time", "GetCertificate", "GetConfigForClient", "VerifyPeerCertificate", "GetClientCertificate":
706 // DeepEqual can't compare functions. If you add a
707 // function field to this list, you must also change
708 // TestCloneFuncFields to ensure that the func field is
711 f.Set(reflect.ValueOf([]Certificate{
712 {Certificate: [][]byte{{'b'}}},
714 case "NameToCertificate":
715 f.Set(reflect.ValueOf(map[string]*Certificate{"a": nil}))
716 case "RootCAs", "ClientCAs":
717 f.Set(reflect.ValueOf(x509.NewCertPool()))
718 case "ClientSessionCache":
719 f.Set(reflect.ValueOf(NewLRUClientSessionCache(10)))
721 f.Set(reflect.ValueOf(io.Writer(os.Stdout)))
723 f.Set(reflect.ValueOf([]string{"a", "b"}))
725 f.Set(reflect.ValueOf("b"))
727 f.Set(reflect.ValueOf(VerifyClientCertIfGiven))
728 case "InsecureSkipVerify", "SessionTicketsDisabled", "DynamicRecordSizingDisabled", "PreferServerCipherSuites":
729 f.Set(reflect.ValueOf(true))
730 case "MinVersion", "MaxVersion":
731 f.Set(reflect.ValueOf(uint16(VersionTLS12)))
732 case "SessionTicketKey":
733 f.Set(reflect.ValueOf([32]byte{}))
735 f.Set(reflect.ValueOf([]uint16{1, 2}))
736 case "CurvePreferences":
737 f.Set(reflect.ValueOf([]CurveID{CurveP256}))
738 case "Renegotiation":
739 f.Set(reflect.ValueOf(RenegotiateOnceAsClient))
741 t.Errorf("all fields must be accounted for, but saw unknown field %q", fn)
746 // DeepEqual also compares unexported fields, thus c2 needs to have run
747 // serverInit in order to be DeepEqual to c1. Cloning it and discarding
748 // the result is sufficient.
751 if !reflect.DeepEqual(&c1, c2) {
752 t.Errorf("clone failed to copy a field")
756 // changeImplConn is a net.Conn which can change its Write and Close
758 type changeImplConn struct {
760 writeFunc func([]byte) (int, error)
761 closeFunc func() error
764 func (w *changeImplConn) Write(p []byte) (n int, err error) {
765 if w.writeFunc != nil {
766 return w.writeFunc(p)
768 return w.Conn.Write(p)
771 func (w *changeImplConn) Close() error {
772 if w.closeFunc != nil {
775 return w.Conn.Close()
778 func throughput(b *testing.B, version uint16, totalBytes int64, dynamicRecordSizingDisabled bool) {
779 ln := newLocalListener(b)
784 // Less than 64KB because Windows appears to use a TCP rwin < 64KB.
786 const bufsize = 32 << 10
789 buf := make([]byte, bufsize)
790 for i := 0; i < N; i++ {
791 sconn, err := ln.Accept()
793 // panic rather than synchronize to avoid benchmark overhead
794 // (cannot call b.Fatal in goroutine)
795 panic(fmt.Errorf("accept: %v", err))
797 serverConfig := testConfig.Clone()
798 serverConfig.CipherSuites = nil // the defaults may prefer faster ciphers
799 serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
800 srv := Server(sconn, serverConfig)
801 if err := srv.Handshake(); err != nil {
802 panic(fmt.Errorf("handshake: %v", err))
804 if _, err := io.CopyBuffer(srv, srv, buf); err != nil {
805 panic(fmt.Errorf("copy buffer: %v", err))
810 b.SetBytes(totalBytes)
811 clientConfig := testConfig.Clone()
812 clientConfig.CipherSuites = nil // the defaults may prefer faster ciphers
813 clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
814 clientConfig.MaxVersion = version
816 buf := make([]byte, bufsize)
817 chunks := int(math.Ceil(float64(totalBytes) / float64(len(buf))))
818 for i := 0; i < N; i++ {
819 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
823 for j := 0; j < chunks; j++ {
824 _, err := conn.Write(buf)
828 _, err = io.ReadFull(conn, buf)
837 func BenchmarkThroughput(b *testing.B) {
838 for _, mode := range []string{"Max", "Dynamic"} {
839 for size := 1; size <= 64; size <<= 1 {
840 name := fmt.Sprintf("%sPacket/%dMB", mode, size)
841 b.Run(name, func(b *testing.B) {
842 b.Run("TLSv12", func(b *testing.B) {
843 throughput(b, VersionTLS12, int64(size<<20), mode == "Max")
845 b.Run("TLSv13", func(b *testing.B) {
846 throughput(b, VersionTLS13, int64(size<<20), mode == "Max")
853 type slowConn struct {
858 func (c *slowConn) Write(p []byte) (int, error) {
865 time.Sleep(100 * time.Microsecond)
866 allowed := int(time.Since(t0).Seconds()*float64(c.bps)) / 8
867 if allowed > len(p) {
871 n, err := c.Conn.Write(p[wrote:allowed])
881 func latency(b *testing.B, version uint16, bps int, dynamicRecordSizingDisabled bool) {
882 ln := newLocalListener(b)
888 for i := 0; i < N; i++ {
889 sconn, err := ln.Accept()
891 // panic rather than synchronize to avoid benchmark overhead
892 // (cannot call b.Fatal in goroutine)
893 panic(fmt.Errorf("accept: %v", err))
895 serverConfig := testConfig.Clone()
896 serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
897 srv := Server(&slowConn{sconn, bps}, serverConfig)
898 if err := srv.Handshake(); err != nil {
899 panic(fmt.Errorf("handshake: %v", err))
905 clientConfig := testConfig.Clone()
906 clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
907 clientConfig.MaxVersion = version
909 buf := make([]byte, 16384)
910 peek := make([]byte, 1)
912 for i := 0; i < N; i++ {
913 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
917 // make sure we're connected and previous connection has stopped
918 if _, err := conn.Write(buf[:1]); err != nil {
921 if _, err := io.ReadFull(conn, peek); err != nil {
924 if _, err := conn.Write(buf); err != nil {
927 if _, err = io.ReadFull(conn, peek); err != nil {
934 func BenchmarkLatency(b *testing.B) {
935 for _, mode := range []string{"Max", "Dynamic"} {
936 for _, kbps := range []int{200, 500, 1000, 2000, 5000} {
937 name := fmt.Sprintf("%sPacket/%dkbps", mode, kbps)
938 b.Run(name, func(b *testing.B) {
939 b.Run("TLSv12", func(b *testing.B) {
940 latency(b, VersionTLS12, kbps*1000, mode == "Max")
942 b.Run("TLSv13", func(b *testing.B) {
943 latency(b, VersionTLS13, kbps*1000, mode == "Max")
950 func TestConnectionStateMarshal(t *testing.T) {
951 cs := &ConnectionState{}
952 _, err := json.Marshal(cs)
954 t.Errorf("json.Marshal failed on ConnectionState: %v", err)
958 func TestConnectionState(t *testing.T) {
959 issuer, err := x509.ParseCertificate(testRSACertificateIssuer)
963 rootCAs := x509.NewCertPool()
964 rootCAs.AddCert(issuer)
966 now := func() time.Time { return time.Unix(1476984729, 0) }
968 const alpnProtocol = "golang"
969 const serverName = "example.golang"
970 var scts = [][]byte{[]byte("dummy sct 1"), []byte("dummy sct 2")}
971 var ocsp = []byte("dummy ocsp")
973 for _, v := range []uint16{VersionTLS12, VersionTLS13} {
981 t.Run(name, func(t *testing.T) {
985 Certificates: make([]Certificate, 1),
989 ClientAuth: RequireAndVerifyClientCert,
990 NextProtos: []string{alpnProtocol},
991 ServerName: serverName,
993 config.Certificates[0].Certificate = [][]byte{testRSACertificate}
994 config.Certificates[0].PrivateKey = testRSAPrivateKey
995 config.Certificates[0].SignedCertificateTimestamps = scts
996 config.Certificates[0].OCSPStaple = ocsp
998 ss, cs, err := testHandshake(t, config, config)
1000 t.Fatalf("Handshake failed: %v", err)
1003 if ss.Version != v || cs.Version != v {
1004 t.Errorf("Got versions %x (server) and %x (client), expected %x", ss.Version, cs.Version, v)
1007 if !ss.HandshakeComplete || !cs.HandshakeComplete {
1008 t.Errorf("Got HandshakeComplete %v (server) and %v (client), expected true", ss.HandshakeComplete, cs.HandshakeComplete)
1011 if ss.DidResume || cs.DidResume {
1012 t.Errorf("Got DidResume %v (server) and %v (client), expected false", ss.DidResume, cs.DidResume)
1015 if ss.CipherSuite == 0 || cs.CipherSuite == 0 {
1016 t.Errorf("Got invalid cipher suite: %v (server) and %v (client)", ss.CipherSuite, cs.CipherSuite)
1019 if ss.NegotiatedProtocol != alpnProtocol || cs.NegotiatedProtocol != alpnProtocol {
1020 t.Errorf("Got negotiated protocol %q (server) and %q (client), expected %q", ss.NegotiatedProtocol, cs.NegotiatedProtocol, alpnProtocol)
1023 if !cs.NegotiatedProtocolIsMutual {
1024 t.Errorf("Got false NegotiatedProtocolIsMutual on the client side")
1026 // NegotiatedProtocolIsMutual on the server side is unspecified.
1028 if ss.ServerName != serverName {
1029 t.Errorf("Got server name %q, expected %q", ss.ServerName, serverName)
1031 if cs.ServerName != "" {
1032 t.Errorf("Got unexpected server name on the client side")
1035 if len(ss.PeerCertificates) != 1 || len(cs.PeerCertificates) != 1 {
1036 t.Errorf("Got %d (server) and %d (client) peer certificates, expected %d", len(ss.PeerCertificates), len(cs.PeerCertificates), 1)
1039 if len(ss.VerifiedChains) != 1 || len(cs.VerifiedChains) != 1 {
1040 t.Errorf("Got %d (server) and %d (client) verified chains, expected %d", len(ss.VerifiedChains), len(cs.VerifiedChains), 1)
1041 } else if len(ss.VerifiedChains[0]) != 2 || len(cs.VerifiedChains[0]) != 2 {
1042 t.Errorf("Got %d (server) and %d (client) long verified chain, expected %d", len(ss.VerifiedChains[0]), len(cs.VerifiedChains[0]), 2)
1045 if len(cs.SignedCertificateTimestamps) != 2 {
1046 t.Errorf("Got %d SCTs, expected %d", len(cs.SignedCertificateTimestamps), 2)
1048 if !bytes.Equal(cs.OCSPResponse, ocsp) {
1049 t.Errorf("Got OCSPs %x, expected %x", cs.OCSPResponse, ocsp)
1051 // Only TLS 1.3 supports OCSP and SCTs on client certs.
1052 if v == VersionTLS13 {
1053 if len(ss.SignedCertificateTimestamps) != 2 {
1054 t.Errorf("Got %d client SCTs, expected %d", len(ss.SignedCertificateTimestamps), 2)
1056 if !bytes.Equal(ss.OCSPResponse, ocsp) {
1057 t.Errorf("Got client OCSPs %x, expected %x", ss.OCSPResponse, ocsp)
1061 if v == VersionTLS13 {
1062 if ss.TLSUnique != nil || cs.TLSUnique != nil {
1063 t.Errorf("Got TLSUnique %x (server) and %x (client), expected nil in TLS 1.3", ss.TLSUnique, cs.TLSUnique)
1066 if ss.TLSUnique == nil || cs.TLSUnique == nil {
1067 t.Errorf("Got TLSUnique %x (server) and %x (client), expected non-nil", ss.TLSUnique, cs.TLSUnique)
1074 // TestEscapeRoute tests that the library will still work if support for TLS 1.3
1075 // is dropped later in the Go 1.12 cycle.
1076 func TestEscapeRoute(t *testing.T) {
1077 defer func(savedSupportedVersions []uint16) {
1078 supportedVersions = savedSupportedVersions
1079 }(supportedVersions)
1080 supportedVersions = []uint16{
1087 expectVersion(t, testConfig, testConfig, VersionTLS12)
1090 func expectVersion(t *testing.T, clientConfig, serverConfig *Config, v uint16) {
1091 ss, cs, err := testHandshake(t, clientConfig, serverConfig)
1093 t.Fatalf("Handshake failed: %v", err)
1095 if ss.Version != v {
1096 t.Errorf("Server negotiated version %x, expected %x", cs.Version, v)
1098 if cs.Version != v {
1099 t.Errorf("Client negotiated version %x, expected %x", cs.Version, v)
1103 // TestTLS13Switch checks the behavior of GODEBUG=tls13=[0|1]. See Issue 30055.
1104 func TestTLS13Switch(t *testing.T) {
1105 defer func(savedGODEBUG string) {
1106 os.Setenv("GODEBUG", savedGODEBUG)
1107 }(os.Getenv("GODEBUG"))
1109 os.Setenv("GODEBUG", "tls13=0")
1110 tls13Support.Once = sync.Once{} // reset the cache
1112 tls12Config := testConfig.Clone()
1113 tls12Config.MaxVersion = VersionTLS12
1114 expectVersion(t, testConfig, testConfig, VersionTLS12)
1115 expectVersion(t, tls12Config, testConfig, VersionTLS12)
1116 expectVersion(t, testConfig, tls12Config, VersionTLS12)
1117 expectVersion(t, tls12Config, tls12Config, VersionTLS12)
1119 os.Setenv("GODEBUG", "tls13=1")
1120 tls13Support.Once = sync.Once{} // reset the cache
1122 expectVersion(t, testConfig, testConfig, VersionTLS13)
1123 expectVersion(t, tls12Config, testConfig, VersionTLS12)
1124 expectVersion(t, testConfig, tls12Config, VersionTLS12)
1125 expectVersion(t, tls12Config, tls12Config, VersionTLS12)
1128 // Issue 28744: Ensure that we don't modify memory
1129 // that Config doesn't own such as Certificates.
1130 func TestBuildNameToCertificate_doesntModifyCertificates(t *testing.T) {
1132 Certificate: [][]byte{testRSACertificate},
1133 PrivateKey: testRSAPrivateKey,
1136 Certificate: [][]byte{testSNICertificate},
1137 PrivateKey: testRSAPrivateKey,
1139 config := testConfig.Clone()
1140 config.Certificates = []Certificate{c0, c1}
1142 config.BuildNameToCertificate()
1143 got := config.Certificates
1144 want := []Certificate{c0, c1}
1145 if !reflect.DeepEqual(got, want) {
1146 t.Fatalf("Certificates were mutated by BuildNameToCertificate\nGot: %#v\nWant: %#v\n", got, want)