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.
26 var rsaCertPEM = `-----BEGIN CERTIFICATE-----
27 MIIB0zCCAX2gAwIBAgIJAI/M7BYjwB+uMA0GCSqGSIb3DQEBBQUAMEUxCzAJBgNV
28 BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX
29 aWRnaXRzIFB0eSBMdGQwHhcNMTIwOTEyMjE1MjAyWhcNMTUwOTEyMjE1MjAyWjBF
30 MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50
31 ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBANLJ
32 hPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wok/4xIA+ui35/MmNa
33 rtNuC+BdZ1tMuVCPFZcCAwEAAaNQME4wHQYDVR0OBBYEFJvKs8RfJaXTH08W+SGv
34 zQyKn0H8MB8GA1UdIwQYMBaAFJvKs8RfJaXTH08W+SGvzQyKn0H8MAwGA1UdEwQF
35 MAMBAf8wDQYJKoZIhvcNAQEFBQADQQBJlffJHybjDGxRMqaRmDhX0+6v02TUKZsW
36 r5QuVbpQhH6u+0UgcW0jp9QwpxoPTLTWGXEWBBBurxFwiCBhkQ+V
37 -----END CERTIFICATE-----
40 var rsaKeyPEM = `-----BEGIN RSA PRIVATE KEY-----
41 MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
42 k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
43 6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
44 MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
45 SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
46 xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
47 D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
48 -----END RSA PRIVATE KEY-----
51 // keyPEM is the same as rsaKeyPEM, but declares itself as just
52 // "PRIVATE KEY", not "RSA PRIVATE KEY". https://golang.org/issue/4477
53 var keyPEM = `-----BEGIN PRIVATE KEY-----
54 MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
55 k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
56 6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
57 MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
58 SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
59 xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
60 D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
61 -----END PRIVATE KEY-----
64 var ecdsaCertPEM = `-----BEGIN CERTIFICATE-----
65 MIIB/jCCAWICCQDscdUxw16XFDAJBgcqhkjOPQQBMEUxCzAJBgNVBAYTAkFVMRMw
66 EQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBXaWRnaXRzIFB0
67 eSBMdGQwHhcNMTIxMTE0MTI0MDQ4WhcNMTUxMTE0MTI0MDQ4WjBFMQswCQYDVQQG
68 EwJBVTETMBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lk
69 Z2l0cyBQdHkgTHRkMIGbMBAGByqGSM49AgEGBSuBBAAjA4GGAAQBY9+my9OoeSUR
70 lDQdV/x8LsOuLilthhiS1Tz4aGDHIPwC1mlvnf7fg5lecYpMCrLLhauAc1UJXcgl
71 01xoLuzgtAEAgv2P/jgytzRSpUYvgLBt1UA0leLYBy6mQQbrNEuqT3INapKIcUv8
72 XxYP0xMEUksLPq6Ca+CRSqTtrd/23uTnapkwCQYHKoZIzj0EAQOBigAwgYYCQXJo
73 A7Sl2nLVf+4Iu/tAX/IF4MavARKC4PPHK3zfuGfPR3oCCcsAoz3kAzOeijvd0iXb
74 H5jBImIxPL4WxQNiBTexAkF8D1EtpYuWdlVQ80/h/f4pBcGiXPqX5h2PQSQY7hP1
75 +jwM1FGS4fREIOvlBYr/SzzQRtwrvrzGYxDEDbsC0ZGRnA==
76 -----END CERTIFICATE-----
79 var ecdsaKeyPEM = `-----BEGIN EC PARAMETERS-----
81 -----END EC PARAMETERS-----
82 -----BEGIN EC PRIVATE KEY-----
83 MIHcAgEBBEIBrsoKp0oqcv6/JovJJDoDVSGWdirrkgCWxrprGlzB9o0X8fV675X0
84 NwuBenXFfeZvVcwluO7/Q9wkYoPd/t3jGImgBwYFK4EEACOhgYkDgYYABAFj36bL
85 06h5JRGUNB1X/Hwuw64uKW2GGJLVPPhoYMcg/ALWaW+d/t+DmV5xikwKssuFq4Bz
86 VQldyCXTXGgu7OC0AQCC/Y/+ODK3NFKlRi+AsG3VQDSV4tgHLqZBBus0S6pPcg1q
87 kohxS/xfFg/TEwRSSws+roJr4JFKpO2t3/be5OdqmQ==
88 -----END EC PRIVATE KEY-----
91 var keyPairTests = []struct {
96 {"ECDSA", ecdsaCertPEM, ecdsaKeyPEM},
97 {"RSA", rsaCertPEM, rsaKeyPEM},
98 {"RSA-untyped", rsaCertPEM, keyPEM}, // golang.org/issue/4477
101 func TestX509KeyPair(t *testing.T) {
104 for _, test := range keyPairTests {
105 pem = []byte(test.cert + test.key)
106 if _, err := X509KeyPair(pem, pem); err != nil {
107 t.Errorf("Failed to load %s cert followed by %s key: %s", test.algo, test.algo, err)
109 pem = []byte(test.key + test.cert)
110 if _, err := X509KeyPair(pem, pem); err != nil {
111 t.Errorf("Failed to load %s key followed by %s cert: %s", test.algo, test.algo, err)
116 func TestX509KeyPairErrors(t *testing.T) {
117 _, err := X509KeyPair([]byte(rsaKeyPEM), []byte(rsaCertPEM))
119 t.Fatalf("X509KeyPair didn't return an error when arguments were switched")
121 if subStr := "been switched"; !strings.Contains(err.Error(), subStr) {
122 t.Fatalf("Expected %q in the error when switching arguments to X509KeyPair, but the error was %q", subStr, err)
125 _, err = X509KeyPair([]byte(rsaCertPEM), []byte(rsaCertPEM))
127 t.Fatalf("X509KeyPair didn't return an error when both arguments were certificates")
129 if subStr := "certificate"; !strings.Contains(err.Error(), subStr) {
130 t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were certificates, but the error was %q", subStr, err)
133 const nonsensePEM = `
134 -----BEGIN NONSENSE-----
136 -----END NONSENSE-----
139 _, err = X509KeyPair([]byte(nonsensePEM), []byte(nonsensePEM))
141 t.Fatalf("X509KeyPair didn't return an error when both arguments were nonsense")
143 if subStr := "NONSENSE"; !strings.Contains(err.Error(), subStr) {
144 t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were nonsense, but the error was %q", subStr, err)
148 func TestX509MixedKeyPair(t *testing.T) {
149 if _, err := X509KeyPair([]byte(rsaCertPEM), []byte(ecdsaKeyPEM)); err == nil {
150 t.Error("Load of RSA certificate succeeded with ECDSA private key")
152 if _, err := X509KeyPair([]byte(ecdsaCertPEM), []byte(rsaKeyPEM)); err == nil {
153 t.Error("Load of ECDSA certificate succeeded with RSA private key")
157 func newLocalListener(t testing.TB) net.Listener {
158 ln, err := net.Listen("tcp", "127.0.0.1:0")
160 ln, err = net.Listen("tcp6", "[::1]:0")
168 func TestDialTimeout(t *testing.T) {
170 t.Skip("skipping in short mode")
172 listener := newLocalListener(t)
174 addr := listener.Addr().String()
175 defer listener.Close()
177 complete := make(chan bool)
178 defer close(complete)
181 conn, err := listener.Accept()
190 dialer := &net.Dialer{
191 Timeout: 10 * time.Millisecond,
195 if _, err = DialWithDialer(dialer, "tcp", addr, nil); err == nil {
196 t.Fatal("DialWithTimeout completed successfully")
199 if !isTimeoutError(err) {
200 t.Errorf("resulting error not a timeout: %v\nType %T: %#v", err, err, err)
204 func isTimeoutError(err error) bool {
205 if ne, ok := err.(net.Error); ok {
211 // tests that Conn.Read returns (non-zero, io.EOF) instead of
212 // (non-zero, nil) when a Close (alertCloseNotify) is sitting right
213 // behind the application data in the buffer.
214 func TestConnReadNonzeroAndEOF(t *testing.T) {
215 // This test is racy: it assumes that after a write to a
216 // localhost TCP connection, the peer TCP connection can
217 // immediately read it. Because it's racy, we skip this test
218 // in short mode, and then retry it several times with an
219 // increasing sleep in between our final write (via srv.Close
220 // below) and the following read.
222 t.Skip("skipping in short mode")
225 for delay := time.Millisecond; delay <= 64*time.Millisecond; delay *= 2 {
226 if err = testConnReadNonzeroAndEOF(t, delay); err == nil {
233 func testConnReadNonzeroAndEOF(t *testing.T, delay time.Duration) error {
234 ln := newLocalListener(t)
237 srvCh := make(chan *Conn, 1)
240 sconn, err := ln.Accept()
246 serverConfig := testConfig.Clone()
247 srv := Server(sconn, serverConfig)
248 if err := srv.Handshake(); err != nil {
249 serr = fmt.Errorf("handshake: %v", err)
256 clientConfig := testConfig.Clone()
257 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
268 buf := make([]byte, 6)
270 srv.Write([]byte("foobar"))
271 n, err := conn.Read(buf)
272 if n != 6 || err != nil || string(buf) != "foobar" {
273 return fmt.Errorf("Read = %d, %v, data %q; want 6, nil, foobar", n, err, buf)
276 srv.Write([]byte("abcdef"))
279 n, err = conn.Read(buf)
280 if n != 6 || string(buf) != "abcdef" {
281 return fmt.Errorf("Read = %d, buf= %q; want 6, abcdef", n, buf)
284 return fmt.Errorf("Second Read error = %v; want io.EOF", err)
289 func TestTLSUniqueMatches(t *testing.T) {
290 ln := newLocalListener(t)
293 serverTLSUniques := make(chan []byte)
295 for i := 0; i < 2; i++ {
296 sconn, err := ln.Accept()
300 serverConfig := testConfig.Clone()
301 srv := Server(sconn, serverConfig)
302 if err := srv.Handshake(); err != nil {
305 serverTLSUniques <- srv.ConnectionState().TLSUnique
309 clientConfig := testConfig.Clone()
310 clientConfig.ClientSessionCache = NewLRUClientSessionCache(1)
311 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
315 if !bytes.Equal(conn.ConnectionState().TLSUnique, <-serverTLSUniques) {
316 t.Error("client and server channel bindings differ")
320 conn, err = Dial("tcp", ln.Addr().String(), clientConfig)
325 if !conn.ConnectionState().DidResume {
326 t.Error("second session did not use resumption")
328 if !bytes.Equal(conn.ConnectionState().TLSUnique, <-serverTLSUniques) {
329 t.Error("client and server channel bindings differ when session resumption is used")
333 func TestVerifyHostname(t *testing.T) {
334 testenv.MustHaveExternalNetwork(t)
336 c, err := Dial("tcp", "www.google.com:https", nil)
340 if err := c.VerifyHostname("www.google.com"); err != nil {
341 t.Fatalf("verify www.google.com: %v", err)
343 if err := c.VerifyHostname("www.yahoo.com"); err == nil {
344 t.Fatalf("verify www.yahoo.com succeeded")
347 c, err = Dial("tcp", "www.google.com:https", &Config{InsecureSkipVerify: true})
351 if err := c.VerifyHostname("www.google.com"); err == nil {
352 t.Fatalf("verify www.google.com succeeded with InsecureSkipVerify=true")
354 if err := c.VerifyHostname("www.yahoo.com"); err == nil {
355 t.Fatalf("verify www.google.com succeeded with InsecureSkipVerify=true")
359 func TestVerifyHostnameResumed(t *testing.T) {
360 testenv.MustHaveExternalNetwork(t)
363 ClientSessionCache: NewLRUClientSessionCache(32),
365 for i := 0; i < 2; i++ {
366 c, err := Dial("tcp", "www.google.com:https", config)
368 t.Fatalf("Dial #%d: %v", i, err)
370 cs := c.ConnectionState()
371 if i > 0 && !cs.DidResume {
372 t.Fatalf("Subsequent connection unexpectedly didn't resume")
374 if cs.VerifiedChains == nil {
375 t.Fatalf("Dial #%d: cs.VerifiedChains == nil", i)
377 if err := c.VerifyHostname("www.google.com"); err != nil {
378 t.Fatalf("verify www.google.com #%d: %v", i, err)
384 func TestConnCloseBreakingWrite(t *testing.T) {
385 ln := newLocalListener(t)
388 srvCh := make(chan *Conn, 1)
393 sconn, err = ln.Accept()
399 serverConfig := testConfig.Clone()
400 srv := Server(sconn, serverConfig)
401 if err := srv.Handshake(); err != nil {
402 serr = fmt.Errorf("handshake: %v", err)
409 cconn, err := net.Dial("tcp", ln.Addr().String())
415 conn := &changeImplConn{
419 clientConfig := testConfig.Clone()
420 tconn := Client(conn, clientConfig)
421 if err := tconn.Handshake(); err != nil {
431 connClosed := make(chan struct{})
432 conn.closeFunc = func() error {
437 inWrite := make(chan bool, 1)
438 var errConnClosed = errors.New("conn closed for test")
439 conn.writeFunc = func(p []byte) (n int, err error) {
442 return 0, errConnClosed
445 closeReturned := make(chan bool, 1)
448 tconn.Close() // test that this doesn't block forever.
449 closeReturned <- true
452 _, err = tconn.Write([]byte("foo"))
453 if err != errConnClosed {
454 t.Errorf("Write error = %v; want errConnClosed", err)
458 if err := tconn.Close(); err != errClosed {
459 t.Errorf("Close error = %v; want errClosed", err)
463 func TestConnCloseWrite(t *testing.T) {
464 ln := newLocalListener(t)
467 clientDoneChan := make(chan struct{})
469 serverCloseWrite := func() error {
470 sconn, err := ln.Accept()
472 return fmt.Errorf("accept: %v", err)
476 serverConfig := testConfig.Clone()
477 srv := Server(sconn, serverConfig)
478 if err := srv.Handshake(); err != nil {
479 return fmt.Errorf("handshake: %v", err)
483 data, err := ioutil.ReadAll(srv)
488 return fmt.Errorf("Read data = %q; want nothing", data)
491 if err := srv.CloseWrite(); err != nil {
492 return fmt.Errorf("server CloseWrite: %v", err)
495 // Wait for clientCloseWrite to finish, so we know we
496 // tested the CloseWrite before we defer the
497 // sconn.Close above, which would also cause the
498 // client to unblock like CloseWrite.
503 clientCloseWrite := func() error {
504 defer close(clientDoneChan)
506 clientConfig := testConfig.Clone()
507 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
511 if err := conn.Handshake(); err != nil {
516 if err := conn.CloseWrite(); err != nil {
517 return fmt.Errorf("client CloseWrite: %v", err)
520 if _, err := conn.Write([]byte{0}); err != errShutdown {
521 return fmt.Errorf("CloseWrite error = %v; want errShutdown", err)
524 data, err := ioutil.ReadAll(conn)
529 return fmt.Errorf("Read data = %q; want nothing", data)
534 errChan := make(chan error, 2)
536 go func() { errChan <- serverCloseWrite() }()
537 go func() { errChan <- clientCloseWrite() }()
539 for i := 0; i < 2; i++ {
541 case err := <-errChan:
545 case <-time.After(10 * time.Second):
550 // Also test CloseWrite being called before the handshake is
553 ln2 := newLocalListener(t)
556 netConn, err := net.Dial("tcp", ln2.Addr().String())
560 defer netConn.Close()
561 conn := Client(netConn, testConfig.Clone())
563 if err := conn.CloseWrite(); err != errEarlyCloseWrite {
564 t.Errorf("CloseWrite error = %v; want errEarlyCloseWrite", err)
569 func TestClone(t *testing.T) {
571 v := reflect.ValueOf(&c1).Elem()
573 rnd := rand.New(rand.NewSource(time.Now().Unix()))
575 for i := 0; i < typ.NumField(); i++ {
578 // unexported field; not cloned.
582 // testing/quick can't handle functions or interfaces.
583 fn := typ.Field(i).Name
586 f.Set(reflect.ValueOf(io.Reader(os.Stdin)))
588 case "Time", "GetCertificate", "GetConfigForClient", "VerifyPeerCertificate", "GetClientCertificate":
589 // DeepEqual can't compare functions.
592 f.Set(reflect.ValueOf([]Certificate{
593 {Certificate: [][]byte{{'b'}}},
596 case "NameToCertificate":
597 f.Set(reflect.ValueOf(map[string]*Certificate{"a": nil}))
599 case "RootCAs", "ClientCAs":
600 f.Set(reflect.ValueOf(x509.NewCertPool()))
602 case "ClientSessionCache":
603 f.Set(reflect.ValueOf(NewLRUClientSessionCache(10)))
606 f.Set(reflect.ValueOf(io.Writer(os.Stdout)))
611 q, ok := quick.Value(f.Type(), rnd)
613 t.Fatalf("quick.Value failed on field %s", fn)
619 // DeepEqual also compares unexported fields, thus c2 needs to have run
620 // serverInit in order to be DeepEqual to c1. Cloning it and discarding
621 // the result is sufficient.
624 if !reflect.DeepEqual(&c1, c2) {
625 t.Errorf("clone failed to copy a field")
629 // changeImplConn is a net.Conn which can change its Write and Close
631 type changeImplConn struct {
633 writeFunc func([]byte) (int, error)
634 closeFunc func() error
637 func (w *changeImplConn) Write(p []byte) (n int, err error) {
638 if w.writeFunc != nil {
639 return w.writeFunc(p)
641 return w.Conn.Write(p)
644 func (w *changeImplConn) Close() error {
645 if w.closeFunc != nil {
648 return w.Conn.Close()
651 func throughput(b *testing.B, totalBytes int64, dynamicRecordSizingDisabled bool) {
652 ln := newLocalListener(b)
657 // Less than 64KB because Windows appears to use a TCP rwin < 64KB.
659 const bufsize = 32 << 10
662 buf := make([]byte, bufsize)
663 for i := 0; i < N; i++ {
664 sconn, err := ln.Accept()
666 // panic rather than synchronize to avoid benchmark overhead
667 // (cannot call b.Fatal in goroutine)
668 panic(fmt.Errorf("accept: %v", err))
670 serverConfig := testConfig.Clone()
671 serverConfig.CipherSuites = nil // the defaults may prefer faster ciphers
672 serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
673 srv := Server(sconn, serverConfig)
674 if err := srv.Handshake(); err != nil {
675 panic(fmt.Errorf("handshake: %v", err))
677 if _, err := io.CopyBuffer(srv, srv, buf); err != nil {
678 panic(fmt.Errorf("copy buffer: %v", err))
683 b.SetBytes(totalBytes)
684 clientConfig := testConfig.Clone()
685 clientConfig.CipherSuites = nil // the defaults may prefer faster ciphers
686 clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
688 buf := make([]byte, bufsize)
689 chunks := int(math.Ceil(float64(totalBytes) / float64(len(buf))))
690 for i := 0; i < N; i++ {
691 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
695 for j := 0; j < chunks; j++ {
696 _, err := conn.Write(buf)
700 _, err = io.ReadFull(conn, buf)
709 func BenchmarkThroughput(b *testing.B) {
710 for _, mode := range []string{"Max", "Dynamic"} {
711 for size := 1; size <= 64; size <<= 1 {
712 name := fmt.Sprintf("%sPacket/%dMB", mode, size)
713 b.Run(name, func(b *testing.B) {
714 throughput(b, int64(size<<20), mode == "Max")
720 type slowConn struct {
725 func (c *slowConn) Write(p []byte) (int, error) {
732 time.Sleep(100 * time.Microsecond)
733 allowed := int(time.Since(t0).Seconds()*float64(c.bps)) / 8
734 if allowed > len(p) {
738 n, err := c.Conn.Write(p[wrote:allowed])
748 func latency(b *testing.B, bps int, dynamicRecordSizingDisabled bool) {
749 ln := newLocalListener(b)
755 for i := 0; i < N; i++ {
756 sconn, err := ln.Accept()
758 // panic rather than synchronize to avoid benchmark overhead
759 // (cannot call b.Fatal in goroutine)
760 panic(fmt.Errorf("accept: %v", err))
762 serverConfig := testConfig.Clone()
763 serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
764 srv := Server(&slowConn{sconn, bps}, serverConfig)
765 if err := srv.Handshake(); err != nil {
766 panic(fmt.Errorf("handshake: %v", err))
772 clientConfig := testConfig.Clone()
773 clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
775 buf := make([]byte, 16384)
776 peek := make([]byte, 1)
778 for i := 0; i < N; i++ {
779 conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
783 // make sure we're connected and previous connection has stopped
784 if _, err := conn.Write(buf[:1]); err != nil {
787 if _, err := io.ReadFull(conn, peek); err != nil {
790 if _, err := conn.Write(buf); err != nil {
793 if _, err = io.ReadFull(conn, peek); err != nil {
800 func BenchmarkLatency(b *testing.B) {
801 for _, mode := range []string{"Max", "Dynamic"} {
802 for _, kbps := range []int{200, 500, 1000, 2000, 5000} {
803 name := fmt.Sprintf("%sPacket/%dkbps", mode, kbps)
804 b.Run(name, func(b *testing.B) {
805 latency(b, kbps*1000, mode == "Max")