| // Copyright 2009 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package tls |
| |
| import ( |
| "bytes" |
| "context" |
| "crypto" |
| "crypto/elliptic" |
| "crypto/x509" |
| "encoding/pem" |
| "errors" |
| "fmt" |
| "io" |
| "net" |
| "os" |
| "os/exec" |
| "path/filepath" |
| "runtime" |
| "strings" |
| "testing" |
| "time" |
| |
| "golang.org/x/crypto/curve25519" |
| ) |
| |
| func testClientHello(t *testing.T, serverConfig *Config, m handshakeMessage) { |
| testClientHelloFailure(t, serverConfig, m, "") |
| } |
| |
| func testClientHelloFailure(t *testing.T, serverConfig *Config, m handshakeMessage, expectedSubStr string) { |
| c, s := localPipe(t) |
| go func() { |
| cli := Client(c, testConfig) |
| if ch, ok := m.(*clientHelloMsg); ok { |
| cli.vers = ch.vers |
| } |
| cli.writeRecord(recordTypeHandshake, m.marshal()) |
| c.Close() |
| }() |
| ctx := context.Background() |
| conn := Server(s, serverConfig) |
| ch, err := conn.readClientHello(ctx) |
| hs := serverHandshakeState{ |
| c: conn, |
| ctx: ctx, |
| clientHello: ch, |
| } |
| if err == nil { |
| err = hs.processClientHello() |
| } |
| if err == nil { |
| err = hs.pickCipherSuite() |
| } |
| s.Close() |
| if len(expectedSubStr) == 0 { |
| if err != nil && err != io.EOF { |
| t.Errorf("Got error: %s; expected to succeed", err) |
| } |
| } else if err == nil || !strings.Contains(err.Error(), expectedSubStr) { |
| t.Errorf("Got error: %v; expected to match substring '%s'", err, expectedSubStr) |
| } |
| } |
| |
| func TestSimpleError(t *testing.T) { |
| testClientHelloFailure(t, testConfig, &serverHelloDoneMsg{}, "unexpected handshake message") |
| } |
| |
| var badProtocolVersions = []uint16{0x0000, 0x0005, 0x0100, 0x0105, 0x0200, 0x0205, VersionSSL30} |
| |
| func TestRejectBadProtocolVersion(t *testing.T) { |
| config := testConfig.Clone() |
| config.MinVersion = VersionSSL30 |
| for _, v := range badProtocolVersions { |
| testClientHelloFailure(t, config, &clientHelloMsg{ |
| vers: v, |
| random: make([]byte, 32), |
| }, "unsupported versions") |
| } |
| testClientHelloFailure(t, config, &clientHelloMsg{ |
| vers: VersionTLS12, |
| supportedVersions: badProtocolVersions, |
| random: make([]byte, 32), |
| }, "unsupported versions") |
| } |
| |
| func TestNoSuiteOverlap(t *testing.T) { |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{0xff00}, |
| compressionMethods: []uint8{compressionNone}, |
| } |
| testClientHelloFailure(t, testConfig, clientHello, "no cipher suite supported by both client and server") |
| } |
| |
| func TestNoCompressionOverlap(t *testing.T) { |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{0xff}, |
| } |
| testClientHelloFailure(t, testConfig, clientHello, "client does not support uncompressed connections") |
| } |
| |
| func TestNoRC4ByDefault(t *testing.T) { |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| } |
| serverConfig := testConfig.Clone() |
| // Reset the enabled cipher suites to nil in order to test the |
| // defaults. |
| serverConfig.CipherSuites = nil |
| testClientHelloFailure(t, serverConfig, clientHello, "no cipher suite supported by both client and server") |
| } |
| |
| func TestRejectSNIWithTrailingDot(t *testing.T) { |
| testClientHelloFailure(t, testConfig, &clientHelloMsg{ |
| vers: VersionTLS12, |
| random: make([]byte, 32), |
| serverName: "foo.com.", |
| }, "unexpected message") |
| } |
| |
| func TestDontSelectECDSAWithRSAKey(t *testing.T) { |
| // Test that, even when both sides support an ECDSA cipher suite, it |
| // won't be selected if the server's private key doesn't support it. |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| supportedCurves: []CurveID{CurveP256}, |
| supportedPoints: []uint8{pointFormatUncompressed}, |
| } |
| serverConfig := testConfig.Clone() |
| serverConfig.CipherSuites = clientHello.cipherSuites |
| serverConfig.Certificates = make([]Certificate, 1) |
| serverConfig.Certificates[0].Certificate = [][]byte{testECDSACertificate} |
| serverConfig.Certificates[0].PrivateKey = testECDSAPrivateKey |
| serverConfig.BuildNameToCertificate() |
| // First test that it *does* work when the server's key is ECDSA. |
| testClientHello(t, serverConfig, clientHello) |
| |
| // Now test that switching to an RSA key causes the expected error (and |
| // not an internal error about a signing failure). |
| serverConfig.Certificates = testConfig.Certificates |
| testClientHelloFailure(t, serverConfig, clientHello, "no cipher suite supported by both client and server") |
| } |
| |
| func TestDontSelectRSAWithECDSAKey(t *testing.T) { |
| // Test that, even when both sides support an RSA cipher suite, it |
| // won't be selected if the server's private key doesn't support it. |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| supportedCurves: []CurveID{CurveP256}, |
| supportedPoints: []uint8{pointFormatUncompressed}, |
| } |
| serverConfig := testConfig.Clone() |
| serverConfig.CipherSuites = clientHello.cipherSuites |
| // First test that it *does* work when the server's key is RSA. |
| testClientHello(t, serverConfig, clientHello) |
| |
| // Now test that switching to an ECDSA key causes the expected error |
| // (and not an internal error about a signing failure). |
| serverConfig.Certificates = make([]Certificate, 1) |
| serverConfig.Certificates[0].Certificate = [][]byte{testECDSACertificate} |
| serverConfig.Certificates[0].PrivateKey = testECDSAPrivateKey |
| serverConfig.BuildNameToCertificate() |
| testClientHelloFailure(t, serverConfig, clientHello, "no cipher suite supported by both client and server") |
| } |
| |
| func TestRenegotiationExtension(t *testing.T) { |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS12, |
| compressionMethods: []uint8{compressionNone}, |
| random: make([]byte, 32), |
| secureRenegotiationSupported: true, |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| } |
| |
| bufChan := make(chan []byte, 1) |
| c, s := localPipe(t) |
| |
| go func() { |
| cli := Client(c, testConfig) |
| cli.vers = clientHello.vers |
| cli.writeRecord(recordTypeHandshake, clientHello.marshal()) |
| |
| buf := make([]byte, 1024) |
| n, err := c.Read(buf) |
| if err != nil { |
| t.Errorf("Server read returned error: %s", err) |
| return |
| } |
| c.Close() |
| bufChan <- buf[:n] |
| }() |
| |
| Server(s, testConfig).Handshake() |
| buf := <-bufChan |
| |
| if len(buf) < 5+4 { |
| t.Fatalf("Server returned short message of length %d", len(buf)) |
| } |
| // buf contains a TLS record, with a 5 byte record header and a 4 byte |
| // handshake header. The length of the ServerHello is taken from the |
| // handshake header. |
| serverHelloLen := int(buf[6])<<16 | int(buf[7])<<8 | int(buf[8]) |
| |
| var serverHello serverHelloMsg |
| // unmarshal expects to be given the handshake header, but |
| // serverHelloLen doesn't include it. |
| if !serverHello.unmarshal(buf[5 : 9+serverHelloLen]) { |
| t.Fatalf("Failed to parse ServerHello") |
| } |
| |
| if !serverHello.secureRenegotiationSupported { |
| t.Errorf("Secure renegotiation extension was not echoed.") |
| } |
| } |
| |
| func TestTLS12OnlyCipherSuites(t *testing.T) { |
| // Test that a Server doesn't select a TLS 1.2-only cipher suite when |
| // the client negotiates TLS 1.1. |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS11, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{ |
| // The Server, by default, will use the client's |
| // preference order. So the GCM cipher suite |
| // will be selected unless it's excluded because |
| // of the version in this ClientHello. |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_RSA_WITH_RC4_128_SHA, |
| }, |
| compressionMethods: []uint8{compressionNone}, |
| supportedCurves: []CurveID{CurveP256, CurveP384, CurveP521}, |
| supportedPoints: []uint8{pointFormatUncompressed}, |
| } |
| |
| c, s := localPipe(t) |
| replyChan := make(chan any) |
| go func() { |
| cli := Client(c, testConfig) |
| cli.vers = clientHello.vers |
| cli.writeRecord(recordTypeHandshake, clientHello.marshal()) |
| reply, err := cli.readHandshake() |
| c.Close() |
| if err != nil { |
| replyChan <- err |
| } else { |
| replyChan <- reply |
| } |
| }() |
| config := testConfig.Clone() |
| config.CipherSuites = clientHello.cipherSuites |
| Server(s, config).Handshake() |
| s.Close() |
| reply := <-replyChan |
| if err, ok := reply.(error); ok { |
| t.Fatal(err) |
| } |
| serverHello, ok := reply.(*serverHelloMsg) |
| if !ok { |
| t.Fatalf("didn't get ServerHello message in reply. Got %v\n", reply) |
| } |
| if s := serverHello.cipherSuite; s != TLS_RSA_WITH_RC4_128_SHA { |
| t.Fatalf("bad cipher suite from server: %x", s) |
| } |
| } |
| |
| func TestTLSPointFormats(t *testing.T) { |
| // Test that a Server returns the ec_point_format extension when ECC is |
| // negotiated, and not returned on RSA handshake. |
| tests := []struct { |
| name string |
| cipherSuites []uint16 |
| supportedCurves []CurveID |
| supportedPoints []uint8 |
| wantSupportedPoints bool |
| }{ |
| {"ECC", []uint16{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA}, []CurveID{CurveP256}, []uint8{compressionNone}, true}, |
| {"RSA", []uint16{TLS_RSA_WITH_AES_256_GCM_SHA384}, nil, nil, false}, |
| } |
| for _, tt := range tests { |
| t.Run(tt.name, func(t *testing.T) { |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS12, |
| random: make([]byte, 32), |
| cipherSuites: tt.cipherSuites, |
| compressionMethods: []uint8{compressionNone}, |
| supportedCurves: tt.supportedCurves, |
| supportedPoints: tt.supportedPoints, |
| } |
| |
| c, s := localPipe(t) |
| replyChan := make(chan any) |
| go func() { |
| cli := Client(c, testConfig) |
| cli.vers = clientHello.vers |
| cli.writeRecord(recordTypeHandshake, clientHello.marshal()) |
| reply, err := cli.readHandshake() |
| c.Close() |
| if err != nil { |
| replyChan <- err |
| } else { |
| replyChan <- reply |
| } |
| }() |
| config := testConfig.Clone() |
| config.CipherSuites = clientHello.cipherSuites |
| Server(s, config).Handshake() |
| s.Close() |
| reply := <-replyChan |
| if err, ok := reply.(error); ok { |
| t.Fatal(err) |
| } |
| serverHello, ok := reply.(*serverHelloMsg) |
| if !ok { |
| t.Fatalf("didn't get ServerHello message in reply. Got %v\n", reply) |
| } |
| if tt.wantSupportedPoints { |
| if len(serverHello.supportedPoints) < 1 { |
| t.Fatal("missing ec_point_format extension from server") |
| } |
| found := false |
| for _, p := range serverHello.supportedPoints { |
| if p == pointFormatUncompressed { |
| found = true |
| break |
| } |
| } |
| if !found { |
| t.Fatal("missing uncompressed format in ec_point_format extension from server") |
| } |
| } else { |
| if len(serverHello.supportedPoints) != 0 { |
| t.Fatalf("unexcpected ec_point_format extension from server: %v", serverHello.supportedPoints) |
| } |
| } |
| }) |
| } |
| } |
| |
| func TestAlertForwarding(t *testing.T) { |
| c, s := localPipe(t) |
| go func() { |
| Client(c, testConfig).sendAlert(alertUnknownCA) |
| c.Close() |
| }() |
| |
| err := Server(s, testConfig).Handshake() |
| s.Close() |
| var opErr *net.OpError |
| if !errors.As(err, &opErr) || opErr.Err != error(alertUnknownCA) { |
| t.Errorf("Got error: %s; expected: %s", err, error(alertUnknownCA)) |
| } |
| } |
| |
| func TestClose(t *testing.T) { |
| c, s := localPipe(t) |
| go c.Close() |
| |
| err := Server(s, testConfig).Handshake() |
| s.Close() |
| if err != io.EOF { |
| t.Errorf("Got error: %s; expected: %s", err, io.EOF) |
| } |
| } |
| |
| func TestVersion(t *testing.T) { |
| serverConfig := &Config{ |
| Certificates: testConfig.Certificates, |
| MaxVersion: VersionTLS11, |
| } |
| clientConfig := &Config{ |
| InsecureSkipVerify: true, |
| MinVersion: VersionTLS10, |
| } |
| state, _, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if state.Version != VersionTLS11 { |
| t.Fatalf("incorrect version %x, should be %x", state.Version, VersionTLS11) |
| } |
| |
| clientConfig.MinVersion = 0 |
| _, _, err = testHandshake(t, clientConfig, serverConfig) |
| if err == nil { |
| t.Fatalf("expected failure to connect with TLS 1.0/1.1") |
| } |
| |
| defer func(old bool) { debugEnableTLS10 = old }(debugEnableTLS10) |
| debugEnableTLS10 = true |
| _, _, err = testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if state.Version != VersionTLS11 { |
| t.Fatalf("incorrect version %x, should be %x", state.Version, VersionTLS11) |
| } |
| } |
| |
| func TestCipherSuitePreference(t *testing.T) { |
| serverConfig := &Config{ |
| CipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA, TLS_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256}, |
| Certificates: testConfig.Certificates, |
| MaxVersion: VersionTLS12, |
| GetConfigForClient: func(chi *ClientHelloInfo) (*Config, error) { |
| if chi.CipherSuites[0] != TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 { |
| t.Error("the advertised order should not depend on Config.CipherSuites") |
| } |
| if len(chi.CipherSuites) != 2+len(defaultCipherSuitesTLS13) { |
| t.Error("the advertised TLS 1.2 suites should be filtered by Config.CipherSuites") |
| } |
| return nil, nil |
| }, |
| } |
| clientConfig := &Config{ |
| CipherSuites: []uint16{TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256}, |
| InsecureSkipVerify: true, |
| } |
| state, _, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if state.CipherSuite != TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 { |
| t.Error("the preference order should not depend on Config.CipherSuites") |
| } |
| } |
| |
| func TestSCTHandshake(t *testing.T) { |
| t.Run("TLSv12", func(t *testing.T) { testSCTHandshake(t, VersionTLS12) }) |
| t.Run("TLSv13", func(t *testing.T) { testSCTHandshake(t, VersionTLS13) }) |
| } |
| |
| func testSCTHandshake(t *testing.T, version uint16) { |
| expected := [][]byte{[]byte("certificate"), []byte("transparency")} |
| serverConfig := &Config{ |
| Certificates: []Certificate{{ |
| Certificate: [][]byte{testRSACertificate}, |
| PrivateKey: testRSAPrivateKey, |
| SignedCertificateTimestamps: expected, |
| }}, |
| MaxVersion: version, |
| } |
| clientConfig := &Config{ |
| InsecureSkipVerify: true, |
| } |
| _, state, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| actual := state.SignedCertificateTimestamps |
| if len(actual) != len(expected) { |
| t.Fatalf("got %d scts, want %d", len(actual), len(expected)) |
| } |
| for i, sct := range expected { |
| if !bytes.Equal(sct, actual[i]) { |
| t.Fatalf("SCT #%d was %x, but expected %x", i, actual[i], sct) |
| } |
| } |
| } |
| |
| func TestCrossVersionResume(t *testing.T) { |
| t.Run("TLSv12", func(t *testing.T) { testCrossVersionResume(t, VersionTLS12) }) |
| t.Run("TLSv13", func(t *testing.T) { testCrossVersionResume(t, VersionTLS13) }) |
| } |
| |
| func testCrossVersionResume(t *testing.T, version uint16) { |
| serverConfig := &Config{ |
| CipherSuites: []uint16{TLS_RSA_WITH_AES_128_CBC_SHA}, |
| Certificates: testConfig.Certificates, |
| } |
| clientConfig := &Config{ |
| CipherSuites: []uint16{TLS_RSA_WITH_AES_128_CBC_SHA}, |
| InsecureSkipVerify: true, |
| ClientSessionCache: NewLRUClientSessionCache(1), |
| ServerName: "servername", |
| MinVersion: VersionTLS10, |
| } |
| |
| // Establish a session at TLS 1.1. |
| clientConfig.MaxVersion = VersionTLS11 |
| _, _, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| |
| // The client session cache now contains a TLS 1.1 session. |
| state, _, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if !state.DidResume { |
| t.Fatalf("handshake did not resume at the same version") |
| } |
| |
| // Test that the server will decline to resume at a lower version. |
| clientConfig.MaxVersion = VersionTLS10 |
| state, _, err = testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if state.DidResume { |
| t.Fatalf("handshake resumed at a lower version") |
| } |
| |
| // The client session cache now contains a TLS 1.0 session. |
| state, _, err = testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if !state.DidResume { |
| t.Fatalf("handshake did not resume at the same version") |
| } |
| |
| // Test that the server will decline to resume at a higher version. |
| clientConfig.MaxVersion = VersionTLS11 |
| state, _, err = testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatalf("handshake failed: %s", err) |
| } |
| if state.DidResume { |
| t.Fatalf("handshake resumed at a higher version") |
| } |
| } |
| |
| // Note: see comment in handshake_test.go for details of how the reference |
| // tests work. |
| |
| // serverTest represents a test of the TLS server handshake against a reference |
| // implementation. |
| type serverTest struct { |
| // name is a freeform string identifying the test and the file in which |
| // the expected results will be stored. |
| name string |
| // command, if not empty, contains a series of arguments for the |
| // command to run for the reference server. |
| command []string |
| // expectedPeerCerts contains a list of PEM blocks of expected |
| // certificates from the client. |
| expectedPeerCerts []string |
| // config, if not nil, contains a custom Config to use for this test. |
| config *Config |
| // expectHandshakeErrorIncluding, when not empty, contains a string |
| // that must be a substring of the error resulting from the handshake. |
| expectHandshakeErrorIncluding string |
| // validate, if not nil, is a function that will be called with the |
| // ConnectionState of the resulting connection. It returns false if the |
| // ConnectionState is unacceptable. |
| validate func(ConnectionState) error |
| // wait, if true, prevents this subtest from calling t.Parallel. |
| // If false, runServerTest* returns immediately. |
| wait bool |
| } |
| |
| var defaultClientCommand = []string{"openssl", "s_client", "-no_ticket"} |
| |
| // connFromCommand starts opens a listening socket and starts the reference |
| // client to connect to it. It returns a recordingConn that wraps the resulting |
| // connection. |
| func (test *serverTest) connFromCommand() (conn *recordingConn, child *exec.Cmd, err error) { |
| l, err := net.ListenTCP("tcp", &net.TCPAddr{ |
| IP: net.IPv4(127, 0, 0, 1), |
| Port: 0, |
| }) |
| if err != nil { |
| return nil, nil, err |
| } |
| defer l.Close() |
| |
| port := l.Addr().(*net.TCPAddr).Port |
| |
| var command []string |
| command = append(command, test.command...) |
| if len(command) == 0 { |
| command = defaultClientCommand |
| } |
| command = append(command, "-connect") |
| command = append(command, fmt.Sprintf("127.0.0.1:%d", port)) |
| cmd := exec.Command(command[0], command[1:]...) |
| cmd.Stdin = nil |
| var output bytes.Buffer |
| cmd.Stdout = &output |
| cmd.Stderr = &output |
| if err := cmd.Start(); err != nil { |
| return nil, nil, err |
| } |
| |
| connChan := make(chan any, 1) |
| go func() { |
| tcpConn, err := l.Accept() |
| if err != nil { |
| connChan <- err |
| return |
| } |
| connChan <- tcpConn |
| }() |
| |
| var tcpConn net.Conn |
| select { |
| case connOrError := <-connChan: |
| if err, ok := connOrError.(error); ok { |
| return nil, nil, err |
| } |
| tcpConn = connOrError.(net.Conn) |
| case <-time.After(2 * time.Second): |
| return nil, nil, errors.New("timed out waiting for connection from child process") |
| } |
| |
| record := &recordingConn{ |
| Conn: tcpConn, |
| } |
| |
| return record, cmd, nil |
| } |
| |
| func (test *serverTest) dataPath() string { |
| return filepath.Join("testdata", "Server-"+test.name) |
| } |
| |
| func (test *serverTest) loadData() (flows [][]byte, err error) { |
| in, err := os.Open(test.dataPath()) |
| if err != nil { |
| return nil, err |
| } |
| defer in.Close() |
| return parseTestData(in) |
| } |
| |
| func (test *serverTest) run(t *testing.T, write bool) { |
| var clientConn, serverConn net.Conn |
| var recordingConn *recordingConn |
| var childProcess *exec.Cmd |
| |
| if write { |
| var err error |
| recordingConn, childProcess, err = test.connFromCommand() |
| if err != nil { |
| t.Fatalf("Failed to start subcommand: %s", err) |
| } |
| serverConn = recordingConn |
| defer func() { |
| if t.Failed() { |
| t.Logf("OpenSSL output:\n\n%s", childProcess.Stdout) |
| } |
| }() |
| } else { |
| clientConn, serverConn = localPipe(t) |
| } |
| config := test.config |
| if config == nil { |
| config = testConfig |
| } |
| server := Server(serverConn, config) |
| connStateChan := make(chan ConnectionState, 1) |
| go func() { |
| _, err := server.Write([]byte("hello, world\n")) |
| if len(test.expectHandshakeErrorIncluding) > 0 { |
| if err == nil { |
| t.Errorf("Error expected, but no error returned") |
| } else if s := err.Error(); !strings.Contains(s, test.expectHandshakeErrorIncluding) { |
| t.Errorf("Error expected containing '%s' but got '%s'", test.expectHandshakeErrorIncluding, s) |
| } |
| } else { |
| if err != nil { |
| t.Logf("Error from Server.Write: '%s'", err) |
| } |
| } |
| server.Close() |
| serverConn.Close() |
| connStateChan <- server.ConnectionState() |
| }() |
| |
| if !write { |
| flows, err := test.loadData() |
| if err != nil { |
| t.Fatalf("%s: failed to load data from %s", test.name, test.dataPath()) |
| } |
| for i, b := range flows { |
| if i%2 == 0 { |
| if *fast { |
| clientConn.SetWriteDeadline(time.Now().Add(1 * time.Second)) |
| } else { |
| clientConn.SetWriteDeadline(time.Now().Add(1 * time.Minute)) |
| } |
| clientConn.Write(b) |
| continue |
| } |
| bb := make([]byte, len(b)) |
| if *fast { |
| clientConn.SetReadDeadline(time.Now().Add(1 * time.Second)) |
| } else { |
| clientConn.SetReadDeadline(time.Now().Add(1 * time.Minute)) |
| } |
| n, err := io.ReadFull(clientConn, bb) |
| if err != nil { |
| t.Fatalf("%s #%d: %s\nRead %d, wanted %d, got %x, wanted %x\n", test.name, i+1, err, n, len(bb), bb[:n], b) |
| } |
| if !bytes.Equal(b, bb) { |
| t.Fatalf("%s #%d: mismatch on read: got:%x want:%x", test.name, i+1, bb, b) |
| } |
| } |
| clientConn.Close() |
| } |
| |
| connState := <-connStateChan |
| peerCerts := connState.PeerCertificates |
| if len(peerCerts) == len(test.expectedPeerCerts) { |
| for i, peerCert := range peerCerts { |
| block, _ := pem.Decode([]byte(test.expectedPeerCerts[i])) |
| if !bytes.Equal(block.Bytes, peerCert.Raw) { |
| t.Fatalf("%s: mismatch on peer cert %d", test.name, i+1) |
| } |
| } |
| } else { |
| t.Fatalf("%s: mismatch on peer list length: %d (wanted) != %d (got)", test.name, len(test.expectedPeerCerts), len(peerCerts)) |
| } |
| |
| if test.validate != nil { |
| if err := test.validate(connState); err != nil { |
| t.Fatalf("validate callback returned error: %s", err) |
| } |
| } |
| |
| if write { |
| path := test.dataPath() |
| out, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644) |
| if err != nil { |
| t.Fatalf("Failed to create output file: %s", err) |
| } |
| defer out.Close() |
| recordingConn.Close() |
| if len(recordingConn.flows) < 3 { |
| if len(test.expectHandshakeErrorIncluding) == 0 { |
| t.Fatalf("Handshake failed") |
| } |
| } |
| recordingConn.WriteTo(out) |
| t.Logf("Wrote %s\n", path) |
| childProcess.Wait() |
| } |
| } |
| |
| func runServerTestForVersion(t *testing.T, template *serverTest, version, option string) { |
| // Make a deep copy of the template before going parallel. |
| test := *template |
| if template.config != nil { |
| test.config = template.config.Clone() |
| } |
| test.name = version + "-" + test.name |
| if len(test.command) == 0 { |
| test.command = defaultClientCommand |
| } |
| test.command = append([]string(nil), test.command...) |
| test.command = append(test.command, option) |
| |
| runTestAndUpdateIfNeeded(t, version, test.run, test.wait) |
| } |
| |
| func runServerTestTLS10(t *testing.T, template *serverTest) { |
| runServerTestForVersion(t, template, "TLSv10", "-tls1") |
| } |
| |
| func runServerTestTLS11(t *testing.T, template *serverTest) { |
| runServerTestForVersion(t, template, "TLSv11", "-tls1_1") |
| } |
| |
| func runServerTestTLS12(t *testing.T, template *serverTest) { |
| runServerTestForVersion(t, template, "TLSv12", "-tls1_2") |
| } |
| |
| func runServerTestTLS13(t *testing.T, template *serverTest) { |
| runServerTestForVersion(t, template, "TLSv13", "-tls1_3") |
| } |
| |
| func TestHandshakeServerRSARC4(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-RC4", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "RC4-SHA"}, |
| } |
| runServerTestTLS10(t, test) |
| runServerTestTLS11(t, test) |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerRSA3DES(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-3DES", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "DES-CBC3-SHA"}, |
| } |
| runServerTestTLS10(t, test) |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerRSAAES(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-AES", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA"}, |
| } |
| runServerTestTLS10(t, test) |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerAESGCM(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-AES-GCM", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-AES128-GCM-SHA256"}, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerAES256GCMSHA384(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-AES256-GCM-SHA384", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-AES256-GCM-SHA384"}, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerAES128SHA256(t *testing.T) { |
| test := &serverTest{ |
| name: "AES128-SHA256", |
| command: []string{"openssl", "s_client", "-no_ticket", "-ciphersuites", "TLS_AES_128_GCM_SHA256"}, |
| } |
| runServerTestTLS13(t, test) |
| } |
| func TestHandshakeServerAES256SHA384(t *testing.T) { |
| test := &serverTest{ |
| name: "AES256-SHA384", |
| command: []string{"openssl", "s_client", "-no_ticket", "-ciphersuites", "TLS_AES_256_GCM_SHA384"}, |
| } |
| runServerTestTLS13(t, test) |
| } |
| func TestHandshakeServerCHACHA20SHA256(t *testing.T) { |
| test := &serverTest{ |
| name: "CHACHA20-SHA256", |
| command: []string{"openssl", "s_client", "-no_ticket", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| } |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerECDHEECDSAAES(t *testing.T) { |
| config := testConfig.Clone() |
| config.Certificates = make([]Certificate, 1) |
| config.Certificates[0].Certificate = [][]byte{testECDSACertificate} |
| config.Certificates[0].PrivateKey = testECDSAPrivateKey |
| config.BuildNameToCertificate() |
| |
| test := &serverTest{ |
| name: "ECDHE-ECDSA-AES", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-ECDSA-AES256-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256"}, |
| config: config, |
| } |
| runServerTestTLS10(t, test) |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerX25519(t *testing.T) { |
| config := testConfig.Clone() |
| config.CurvePreferences = []CurveID{X25519} |
| |
| test := &serverTest{ |
| name: "X25519", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256", "-curves", "X25519"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerP256(t *testing.T) { |
| config := testConfig.Clone() |
| config.CurvePreferences = []CurveID{CurveP256} |
| |
| test := &serverTest{ |
| name: "P256", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256", "-curves", "P-256"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerHelloRetryRequest(t *testing.T) { |
| config := testConfig.Clone() |
| config.CurvePreferences = []CurveID{CurveP256} |
| |
| test := &serverTest{ |
| name: "HelloRetryRequest", |
| command: []string{"openssl", "s_client", "-no_ticket", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256", "-curves", "X25519:P-256"}, |
| config: config, |
| } |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerALPN(t *testing.T) { |
| config := testConfig.Clone() |
| config.NextProtos = []string{"proto1", "proto2"} |
| |
| test := &serverTest{ |
| name: "ALPN", |
| // Note that this needs OpenSSL 1.0.2 because that is the first |
| // version that supports the -alpn flag. |
| command: []string{"openssl", "s_client", "-alpn", "proto2,proto1", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: config, |
| validate: func(state ConnectionState) error { |
| // The server's preferences should override the client. |
| if state.NegotiatedProtocol != "proto1" { |
| return fmt.Errorf("Got protocol %q, wanted proto1", state.NegotiatedProtocol) |
| } |
| return nil |
| }, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerALPNNoMatch(t *testing.T) { |
| config := testConfig.Clone() |
| config.NextProtos = []string{"proto3"} |
| |
| test := &serverTest{ |
| name: "ALPN-NoMatch", |
| // Note that this needs OpenSSL 1.0.2 because that is the first |
| // version that supports the -alpn flag. |
| command: []string{"openssl", "s_client", "-alpn", "proto2,proto1", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: config, |
| expectHandshakeErrorIncluding: "client requested unsupported application protocol", |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerALPNNotConfigured(t *testing.T) { |
| config := testConfig.Clone() |
| config.NextProtos = nil |
| |
| test := &serverTest{ |
| name: "ALPN-NotConfigured", |
| // Note that this needs OpenSSL 1.0.2 because that is the first |
| // version that supports the -alpn flag. |
| command: []string{"openssl", "s_client", "-alpn", "proto2,proto1", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: config, |
| validate: func(state ConnectionState) error { |
| if state.NegotiatedProtocol != "" { |
| return fmt.Errorf("Got protocol %q, wanted nothing", state.NegotiatedProtocol) |
| } |
| return nil |
| }, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerALPNFallback(t *testing.T) { |
| config := testConfig.Clone() |
| config.NextProtos = []string{"proto1", "h2", "proto2"} |
| |
| test := &serverTest{ |
| name: "ALPN-Fallback", |
| // Note that this needs OpenSSL 1.0.2 because that is the first |
| // version that supports the -alpn flag. |
| command: []string{"openssl", "s_client", "-alpn", "proto3,http/1.1,proto4", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: config, |
| validate: func(state ConnectionState) error { |
| if state.NegotiatedProtocol != "" { |
| return fmt.Errorf("Got protocol %q, wanted nothing", state.NegotiatedProtocol) |
| } |
| return nil |
| }, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| // TestHandshakeServerSNI involves a client sending an SNI extension of |
| // "snitest.com", which happens to match the CN of testSNICertificate. The test |
| // verifies that the server correctly selects that certificate. |
| func TestHandshakeServerSNI(t *testing.T) { |
| test := &serverTest{ |
| name: "SNI", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-servername", "snitest.com"}, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| // TestHandshakeServerSNICertForName is similar to TestHandshakeServerSNI, but |
| // tests the dynamic GetCertificate method |
| func TestHandshakeServerSNIGetCertificate(t *testing.T) { |
| config := testConfig.Clone() |
| |
| // Replace the NameToCertificate map with a GetCertificate function |
| nameToCert := config.NameToCertificate |
| config.NameToCertificate = nil |
| config.GetCertificate = func(clientHello *ClientHelloInfo) (*Certificate, error) { |
| cert := nameToCert[clientHello.ServerName] |
| return cert, nil |
| } |
| test := &serverTest{ |
| name: "SNI-GetCertificate", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-servername", "snitest.com"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| // TestHandshakeServerSNICertForNameNotFound is similar to |
| // TestHandshakeServerSNICertForName, but tests to make sure that when the |
| // GetCertificate method doesn't return a cert, we fall back to what's in |
| // the NameToCertificate map. |
| func TestHandshakeServerSNIGetCertificateNotFound(t *testing.T) { |
| config := testConfig.Clone() |
| |
| config.GetCertificate = func(clientHello *ClientHelloInfo) (*Certificate, error) { |
| return nil, nil |
| } |
| test := &serverTest{ |
| name: "SNI-GetCertificateNotFound", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-servername", "snitest.com"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| // TestHandshakeServerSNICertForNameError tests to make sure that errors in |
| // GetCertificate result in a tls alert. |
| func TestHandshakeServerSNIGetCertificateError(t *testing.T) { |
| const errMsg = "TestHandshakeServerSNIGetCertificateError error" |
| |
| serverConfig := testConfig.Clone() |
| serverConfig.GetCertificate = func(clientHello *ClientHelloInfo) (*Certificate, error) { |
| return nil, errors.New(errMsg) |
| } |
| |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| serverName: "test", |
| } |
| testClientHelloFailure(t, serverConfig, clientHello, errMsg) |
| } |
| |
| // TestHandshakeServerEmptyCertificates tests that GetCertificates is called in |
| // the case that Certificates is empty, even without SNI. |
| func TestHandshakeServerEmptyCertificates(t *testing.T) { |
| const errMsg = "TestHandshakeServerEmptyCertificates error" |
| |
| serverConfig := testConfig.Clone() |
| serverConfig.GetCertificate = func(clientHello *ClientHelloInfo) (*Certificate, error) { |
| return nil, errors.New(errMsg) |
| } |
| serverConfig.Certificates = nil |
| |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| } |
| testClientHelloFailure(t, serverConfig, clientHello, errMsg) |
| |
| // With an empty Certificates and a nil GetCertificate, the server |
| // should always return a “no certificates” error. |
| serverConfig.GetCertificate = nil |
| |
| clientHello = &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| } |
| testClientHelloFailure(t, serverConfig, clientHello, "no certificates") |
| } |
| |
| func TestServerResumption(t *testing.T) { |
| sessionFilePath := tempFile("") |
| defer os.Remove(sessionFilePath) |
| |
| testIssue := &serverTest{ |
| name: "IssueTicket", |
| command: []string{"openssl", "s_client", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", "-sess_out", sessionFilePath}, |
| wait: true, |
| } |
| testResume := &serverTest{ |
| name: "Resume", |
| command: []string{"openssl", "s_client", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", "-sess_in", sessionFilePath}, |
| validate: func(state ConnectionState) error { |
| if !state.DidResume { |
| return errors.New("did not resume") |
| } |
| return nil |
| }, |
| } |
| |
| runServerTestTLS12(t, testIssue) |
| runServerTestTLS12(t, testResume) |
| |
| runServerTestTLS13(t, testIssue) |
| runServerTestTLS13(t, testResume) |
| |
| config := testConfig.Clone() |
| config.CurvePreferences = []CurveID{CurveP256} |
| |
| testResumeHRR := &serverTest{ |
| name: "Resume-HelloRetryRequest", |
| command: []string{"openssl", "s_client", "-curves", "X25519:P-256", "-cipher", "AES128-SHA", "-ciphersuites", |
| "TLS_AES_128_GCM_SHA256", "-sess_in", sessionFilePath}, |
| config: config, |
| validate: func(state ConnectionState) error { |
| if !state.DidResume { |
| return errors.New("did not resume") |
| } |
| return nil |
| }, |
| } |
| |
| runServerTestTLS13(t, testResumeHRR) |
| } |
| |
| func TestServerResumptionDisabled(t *testing.T) { |
| sessionFilePath := tempFile("") |
| defer os.Remove(sessionFilePath) |
| |
| config := testConfig.Clone() |
| |
| testIssue := &serverTest{ |
| name: "IssueTicketPreDisable", |
| command: []string{"openssl", "s_client", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", "-sess_out", sessionFilePath}, |
| config: config, |
| wait: true, |
| } |
| testResume := &serverTest{ |
| name: "ResumeDisabled", |
| command: []string{"openssl", "s_client", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", "-sess_in", sessionFilePath}, |
| config: config, |
| validate: func(state ConnectionState) error { |
| if state.DidResume { |
| return errors.New("resumed with SessionTicketsDisabled") |
| } |
| return nil |
| }, |
| } |
| |
| config.SessionTicketsDisabled = false |
| runServerTestTLS12(t, testIssue) |
| config.SessionTicketsDisabled = true |
| runServerTestTLS12(t, testResume) |
| |
| config.SessionTicketsDisabled = false |
| runServerTestTLS13(t, testIssue) |
| config.SessionTicketsDisabled = true |
| runServerTestTLS13(t, testResume) |
| } |
| |
| func TestFallbackSCSV(t *testing.T) { |
| serverConfig := Config{ |
| Certificates: testConfig.Certificates, |
| } |
| test := &serverTest{ |
| name: "FallbackSCSV", |
| config: &serverConfig, |
| // OpenSSL 1.0.1j is needed for the -fallback_scsv option. |
| command: []string{"openssl", "s_client", "-fallback_scsv"}, |
| expectHandshakeErrorIncluding: "inappropriate protocol fallback", |
| } |
| runServerTestTLS11(t, test) |
| } |
| |
| func TestHandshakeServerExportKeyingMaterial(t *testing.T) { |
| test := &serverTest{ |
| name: "ExportKeyingMaterial", |
| command: []string{"openssl", "s_client", "-cipher", "ECDHE-RSA-AES256-SHA", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: testConfig.Clone(), |
| validate: func(state ConnectionState) error { |
| if km, err := state.ExportKeyingMaterial("test", nil, 42); err != nil { |
| return fmt.Errorf("ExportKeyingMaterial failed: %v", err) |
| } else if len(km) != 42 { |
| return fmt.Errorf("Got %d bytes from ExportKeyingMaterial, wanted %d", len(km), 42) |
| } |
| return nil |
| }, |
| } |
| runServerTestTLS10(t, test) |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerRSAPKCS1v15(t *testing.T) { |
| test := &serverTest{ |
| name: "RSA-RSAPKCS1v15", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-sigalgs", "rsa_pkcs1_sha256"}, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestHandshakeServerRSAPSS(t *testing.T) { |
| // We send rsa_pss_rsae_sha512 first, as the test key won't fit, and we |
| // verify the server implementation will disregard the client preference in |
| // that case. See Issue 29793. |
| test := &serverTest{ |
| name: "RSA-RSAPSS", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-RSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256", "-sigalgs", "rsa_pss_rsae_sha512:rsa_pss_rsae_sha256"}, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| |
| test = &serverTest{ |
| name: "RSA-RSAPSS-TooSmall", |
| command: []string{"openssl", "s_client", "-no_ticket", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256", "-sigalgs", "rsa_pss_rsae_sha512"}, |
| expectHandshakeErrorIncluding: "peer doesn't support any of the certificate's signature algorithms", |
| } |
| runServerTestTLS13(t, test) |
| } |
| |
| func TestHandshakeServerEd25519(t *testing.T) { |
| config := testConfig.Clone() |
| config.Certificates = make([]Certificate, 1) |
| config.Certificates[0].Certificate = [][]byte{testEd25519Certificate} |
| config.Certificates[0].PrivateKey = testEd25519PrivateKey |
| config.BuildNameToCertificate() |
| |
| test := &serverTest{ |
| name: "Ed25519", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "ECDHE-ECDSA-CHACHA20-POLY1305", "-ciphersuites", "TLS_CHACHA20_POLY1305_SHA256"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| } |
| |
| func benchmarkHandshakeServer(b *testing.B, version uint16, cipherSuite uint16, curve CurveID, cert []byte, key crypto.PrivateKey) { |
| config := testConfig.Clone() |
| config.CipherSuites = []uint16{cipherSuite} |
| config.CurvePreferences = []CurveID{curve} |
| config.Certificates = make([]Certificate, 1) |
| config.Certificates[0].Certificate = [][]byte{cert} |
| config.Certificates[0].PrivateKey = key |
| config.BuildNameToCertificate() |
| |
| clientConn, serverConn := localPipe(b) |
| serverConn = &recordingConn{Conn: serverConn} |
| go func() { |
| config := testConfig.Clone() |
| config.MaxVersion = version |
| config.CurvePreferences = []CurveID{curve} |
| client := Client(clientConn, config) |
| client.Handshake() |
| }() |
| server := Server(serverConn, config) |
| if err := server.Handshake(); err != nil { |
| b.Fatalf("handshake failed: %v", err) |
| } |
| serverConn.Close() |
| flows := serverConn.(*recordingConn).flows |
| |
| feeder := make(chan struct{}) |
| clientConn, serverConn = localPipe(b) |
| |
| go func() { |
| for range feeder { |
| for i, f := range flows { |
| if i%2 == 0 { |
| clientConn.Write(f) |
| continue |
| } |
| ff := make([]byte, len(f)) |
| n, err := io.ReadFull(clientConn, ff) |
| if err != nil { |
| b.Errorf("#%d: %s\nRead %d, wanted %d, got %x, wanted %x\n", i+1, err, n, len(ff), ff[:n], f) |
| } |
| if !bytes.Equal(f, ff) { |
| b.Errorf("#%d: mismatch on read: got:%x want:%x", i+1, ff, f) |
| } |
| } |
| } |
| }() |
| |
| b.ResetTimer() |
| for i := 0; i < b.N; i++ { |
| feeder <- struct{}{} |
| server := Server(serverConn, config) |
| if err := server.Handshake(); err != nil { |
| b.Fatalf("handshake failed: %v", err) |
| } |
| } |
| close(feeder) |
| } |
| |
| func BenchmarkHandshakeServer(b *testing.B) { |
| b.Run("RSA", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS12, TLS_RSA_WITH_AES_128_GCM_SHA256, |
| 0, testRSACertificate, testRSAPrivateKey) |
| }) |
| b.Run("ECDHE-P256-RSA", func(b *testing.B) { |
| b.Run("TLSv13", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS13, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| CurveP256, testRSACertificate, testRSAPrivateKey) |
| }) |
| b.Run("TLSv12", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS12, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| CurveP256, testRSACertificate, testRSAPrivateKey) |
| }) |
| }) |
| b.Run("ECDHE-P256-ECDSA-P256", func(b *testing.B) { |
| b.Run("TLSv13", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS13, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| CurveP256, testP256Certificate, testP256PrivateKey) |
| }) |
| b.Run("TLSv12", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS12, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| CurveP256, testP256Certificate, testP256PrivateKey) |
| }) |
| }) |
| b.Run("ECDHE-X25519-ECDSA-P256", func(b *testing.B) { |
| b.Run("TLSv13", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS13, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| X25519, testP256Certificate, testP256PrivateKey) |
| }) |
| b.Run("TLSv12", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS12, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| X25519, testP256Certificate, testP256PrivateKey) |
| }) |
| }) |
| b.Run("ECDHE-P521-ECDSA-P521", func(b *testing.B) { |
| if testECDSAPrivateKey.PublicKey.Curve != elliptic.P521() { |
| b.Fatal("test ECDSA key doesn't use curve P-521") |
| } |
| b.Run("TLSv13", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS13, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| CurveP521, testECDSACertificate, testECDSAPrivateKey) |
| }) |
| b.Run("TLSv12", func(b *testing.B) { |
| benchmarkHandshakeServer(b, VersionTLS12, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, |
| CurveP521, testECDSACertificate, testECDSAPrivateKey) |
| }) |
| }) |
| } |
| |
| func TestClientAuth(t *testing.T) { |
| var certPath, keyPath, ecdsaCertPath, ecdsaKeyPath, ed25519CertPath, ed25519KeyPath string |
| |
| if *update { |
| certPath = tempFile(clientCertificatePEM) |
| defer os.Remove(certPath) |
| keyPath = tempFile(clientKeyPEM) |
| defer os.Remove(keyPath) |
| ecdsaCertPath = tempFile(clientECDSACertificatePEM) |
| defer os.Remove(ecdsaCertPath) |
| ecdsaKeyPath = tempFile(clientECDSAKeyPEM) |
| defer os.Remove(ecdsaKeyPath) |
| ed25519CertPath = tempFile(clientEd25519CertificatePEM) |
| defer os.Remove(ed25519CertPath) |
| ed25519KeyPath = tempFile(clientEd25519KeyPEM) |
| defer os.Remove(ed25519KeyPath) |
| } else { |
| t.Parallel() |
| } |
| |
| config := testConfig.Clone() |
| config.ClientAuth = RequestClientCert |
| |
| test := &serverTest{ |
| name: "ClientAuthRequestedNotGiven", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256"}, |
| config: config, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| |
| test = &serverTest{ |
| name: "ClientAuthRequestedAndGiven", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", |
| "-cert", certPath, "-key", keyPath, "-client_sigalgs", "rsa_pss_rsae_sha256"}, |
| config: config, |
| expectedPeerCerts: []string{clientCertificatePEM}, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| |
| test = &serverTest{ |
| name: "ClientAuthRequestedAndECDSAGiven", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", |
| "-cert", ecdsaCertPath, "-key", ecdsaKeyPath}, |
| config: config, |
| expectedPeerCerts: []string{clientECDSACertificatePEM}, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| |
| test = &serverTest{ |
| name: "ClientAuthRequestedAndEd25519Given", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", "-ciphersuites", "TLS_AES_128_GCM_SHA256", |
| "-cert", ed25519CertPath, "-key", ed25519KeyPath}, |
| config: config, |
| expectedPeerCerts: []string{clientEd25519CertificatePEM}, |
| } |
| runServerTestTLS12(t, test) |
| runServerTestTLS13(t, test) |
| |
| test = &serverTest{ |
| name: "ClientAuthRequestedAndPKCS1v15Given", |
| command: []string{"openssl", "s_client", "-no_ticket", "-cipher", "AES128-SHA", |
| "-cert", certPath, "-key", keyPath, "-client_sigalgs", "rsa_pkcs1_sha256"}, |
| config: config, |
| expectedPeerCerts: []string{clientCertificatePEM}, |
| } |
| runServerTestTLS12(t, test) |
| } |
| |
| func TestSNIGivenOnFailure(t *testing.T) { |
| const expectedServerName = "test.testing" |
| |
| clientHello := &clientHelloMsg{ |
| vers: VersionTLS10, |
| random: make([]byte, 32), |
| cipherSuites: []uint16{TLS_RSA_WITH_RC4_128_SHA}, |
| compressionMethods: []uint8{compressionNone}, |
| serverName: expectedServerName, |
| } |
| |
| serverConfig := testConfig.Clone() |
| // Erase the server's cipher suites to ensure the handshake fails. |
| serverConfig.CipherSuites = nil |
| |
| c, s := localPipe(t) |
| go func() { |
| cli := Client(c, testConfig) |
| cli.vers = clientHello.vers |
| cli.writeRecord(recordTypeHandshake, clientHello.marshal()) |
| c.Close() |
| }() |
| conn := Server(s, serverConfig) |
| ctx := context.Background() |
| ch, err := conn.readClientHello(ctx) |
| hs := serverHandshakeState{ |
| c: conn, |
| ctx: ctx, |
| clientHello: ch, |
| } |
| if err == nil { |
| err = hs.processClientHello() |
| } |
| if err == nil { |
| err = hs.pickCipherSuite() |
| } |
| defer s.Close() |
| |
| if err == nil { |
| t.Error("No error reported from server") |
| } |
| |
| cs := hs.c.ConnectionState() |
| if cs.HandshakeComplete { |
| t.Error("Handshake registered as complete") |
| } |
| |
| if cs.ServerName != expectedServerName { |
| t.Errorf("Expected ServerName of %q, but got %q", expectedServerName, cs.ServerName) |
| } |
| } |
| |
| var getConfigForClientTests = []struct { |
| setup func(config *Config) |
| callback func(clientHello *ClientHelloInfo) (*Config, error) |
| errorSubstring string |
| verify func(config *Config) error |
| }{ |
| { |
| nil, |
| func(clientHello *ClientHelloInfo) (*Config, error) { |
| return nil, nil |
| }, |
| "", |
| nil, |
| }, |
| { |
| nil, |
| func(clientHello *ClientHelloInfo) (*Config, error) { |
| return nil, errors.New("should bubble up") |
| }, |
| "should bubble up", |
| nil, |
| }, |
| { |
| nil, |
| func(clientHello *ClientHelloInfo) (*Config, error) { |
| config := testConfig.Clone() |
| // Setting a maximum version of TLS 1.1 should cause |
| // the handshake to fail, as the client MinVersion is TLS 1.2. |
| config.MaxVersion = VersionTLS11 |
| return config, nil |
| }, |
| "client offered only unsupported versions", |
| nil, |
| }, |
| { |
| func(config *Config) { |
| for i := range config.SessionTicketKey { |
| config.SessionTicketKey[i] = byte(i) |
| } |
| config.sessionTicketKeys = nil |
| }, |
| func(clientHello *ClientHelloInfo) (*Config, error) { |
| config := testConfig.Clone() |
| for i := range config.SessionTicketKey { |
| config.SessionTicketKey[i] = 0 |
| } |
| config.sessionTicketKeys = nil |
| return config, nil |
| }, |
| "", |
| func(config *Config) error { |
| if config.SessionTicketKey == [32]byte{} { |
| return fmt.Errorf("expected SessionTicketKey to be set") |
| } |
| return nil |
| }, |
| }, |
| { |
| func(config *Config) { |
| var dummyKey [32]byte |
| for i := range dummyKey { |
| dummyKey[i] = byte(i) |
| } |
| |
| config.SetSessionTicketKeys([][32]byte{dummyKey}) |
| }, |
| func(clientHello *ClientHelloInfo) (*Config, error) { |
| config := testConfig.Clone() |
| config.sessionTicketKeys = nil |
| return config, nil |
| }, |
| "", |
| func(config *Config) error { |
| if config.SessionTicketKey == [32]byte{} { |
| return fmt.Errorf("expected SessionTicketKey to be set") |
| } |
| return nil |
| }, |
| }, |
| } |
| |
| func TestGetConfigForClient(t *testing.T) { |
| serverConfig := testConfig.Clone() |
| clientConfig := testConfig.Clone() |
| clientConfig.MinVersion = VersionTLS12 |
| |
| for i, test := range getConfigForClientTests { |
| if test.setup != nil { |
| test.setup(serverConfig) |
| } |
| |
| var configReturned *Config |
| serverConfig.GetConfigForClient = func(clientHello *ClientHelloInfo) (*Config, error) { |
| config, err := test.callback(clientHello) |
| configReturned = config |
| return config, err |
| } |
| c, s := localPipe(t) |
| done := make(chan error) |
| |
| go func() { |
| defer s.Close() |
| done <- Server(s, serverConfig).Handshake() |
| }() |
| |
| clientErr := Client(c, clientConfig).Handshake() |
| c.Close() |
| |
| serverErr := <-done |
| |
| if len(test.errorSubstring) == 0 { |
| if serverErr != nil || clientErr != nil { |
| t.Errorf("test[%d]: expected no error but got serverErr: %q, clientErr: %q", i, serverErr, clientErr) |
| } |
| if test.verify != nil { |
| if err := test.verify(configReturned); err != nil { |
| t.Errorf("test[%d]: verify returned error: %v", i, err) |
| } |
| } |
| } else { |
| if serverErr == nil { |
| t.Errorf("test[%d]: expected error containing %q but got no error", i, test.errorSubstring) |
| } else if !strings.Contains(serverErr.Error(), test.errorSubstring) { |
| t.Errorf("test[%d]: expected error to contain %q but it was %q", i, test.errorSubstring, serverErr) |
| } |
| } |
| } |
| } |
| |
| func TestCloseServerConnectionOnIdleClient(t *testing.T) { |
| clientConn, serverConn := localPipe(t) |
| server := Server(serverConn, testConfig.Clone()) |
| go func() { |
| clientConn.Write([]byte{'0'}) |
| server.Close() |
| }() |
| server.SetReadDeadline(time.Now().Add(time.Minute)) |
| err := server.Handshake() |
| if err != nil { |
| if err, ok := err.(net.Error); ok && err.Timeout() { |
| t.Errorf("Expected a closed network connection error but got '%s'", err.Error()) |
| } |
| } else { |
| t.Errorf("Error expected, but no error returned") |
| } |
| } |
| |
| func TestCloneHash(t *testing.T) { |
| h1 := crypto.SHA256.New() |
| h1.Write([]byte("test")) |
| s1 := h1.Sum(nil) |
| h2 := cloneHash(h1, crypto.SHA256) |
| s2 := h2.Sum(nil) |
| if !bytes.Equal(s1, s2) { |
| t.Error("cloned hash generated a different sum") |
| } |
| } |
| |
| func expectError(t *testing.T, err error, sub string) { |
| if err == nil { |
| t.Errorf(`expected error %q, got nil`, sub) |
| } else if !strings.Contains(err.Error(), sub) { |
| t.Errorf(`expected error %q, got %q`, sub, err) |
| } |
| } |
| |
| func TestKeyTooSmallForRSAPSS(t *testing.T) { |
| cert, err := X509KeyPair([]byte(`-----BEGIN CERTIFICATE----- |
| MIIBcTCCARugAwIBAgIQGjQnkCFlUqaFlt6ixyz/tDANBgkqhkiG9w0BAQsFADAS |
| MRAwDgYDVQQKEwdBY21lIENvMB4XDTE5MDExODIzMjMyOFoXDTIwMDExODIzMjMy |
| OFowEjEQMA4GA1UEChMHQWNtZSBDbzBcMA0GCSqGSIb3DQEBAQUAA0sAMEgCQQDd |
| ez1rFUDwax2HTxbcnFUP9AhcgEGMHVV2nn4VVEWFJB6I8C/Nkx0XyyQlrmFYBzEQ |
| nIPhKls4T0hFoLvjJnXpAgMBAAGjTTBLMA4GA1UdDwEB/wQEAwIFoDATBgNVHSUE |
| DDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMBYGA1UdEQQPMA2CC2V4YW1wbGUu |
| Y29tMA0GCSqGSIb3DQEBCwUAA0EAxDuUS+BrrS3c+h+k+fQPOmOScy6yTX9mHw0Q |
| KbucGamXYEy0URIwOdO0tQ3LHPc1YGvYSPwkDjkjqECs2Vm/AA== |
| -----END CERTIFICATE-----`), []byte(testingKey(`-----BEGIN RSA TESTING KEY----- |
| MIIBOgIBAAJBAN17PWsVQPBrHYdPFtycVQ/0CFyAQYwdVXaefhVURYUkHojwL82T |
| HRfLJCWuYVgHMRCcg+EqWzhPSEWgu+MmdekCAwEAAQJBALjQYNTdXF4CFBbXwUz/ |
| yt9QFDYT9B5WT/12jeGAe653gtYS6OOi/+eAkGmzg1GlRnw6fOfn+HYNFDORST7z |
| 4j0CIQDn2xz9hVWQEu9ee3vecNT3f60huDGTNoRhtqgweQGX0wIhAPSLj1VcRZEz |
| nKpbtU22+PbIMSJ+e80fmY9LIPx5N4HTAiAthGSimMR9bloz0EY3GyuUEyqoDgMd |
| hXxjuno2WesoJQIgemilbcALXpxsLmZLgcQ2KSmaVr7jb5ECx9R+hYKTw1sCIG4s |
| T+E0J8wlH24pgwQHzy7Ko2qLwn1b5PW8ecrlvP1g |
| -----END RSA TESTING KEY-----`))) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| clientConn, serverConn := localPipe(t) |
| client := Client(clientConn, testConfig) |
| done := make(chan struct{}) |
| go func() { |
| config := testConfig.Clone() |
| config.Certificates = []Certificate{cert} |
| config.MinVersion = VersionTLS13 |
| server := Server(serverConn, config) |
| err := server.Handshake() |
| expectError(t, err, "key size too small") |
| close(done) |
| }() |
| err = client.Handshake() |
| expectError(t, err, "handshake failure") |
| <-done |
| } |
| |
| func TestMultipleCertificates(t *testing.T) { |
| clientConfig := testConfig.Clone() |
| clientConfig.CipherSuites = []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256} |
| clientConfig.MaxVersion = VersionTLS12 |
| |
| serverConfig := testConfig.Clone() |
| serverConfig.Certificates = []Certificate{{ |
| Certificate: [][]byte{testECDSACertificate}, |
| PrivateKey: testECDSAPrivateKey, |
| }, { |
| Certificate: [][]byte{testRSACertificate}, |
| PrivateKey: testRSAPrivateKey, |
| }} |
| |
| _, clientState, err := testHandshake(t, clientConfig, serverConfig) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got := clientState.PeerCertificates[0].PublicKeyAlgorithm; got != x509.RSA { |
| t.Errorf("expected RSA certificate, got %v", got) |
| } |
| } |
| |
| func TestAESCipherReordering(t *testing.T) { |
| currentAESSupport := hasAESGCMHardwareSupport |
| defer func() { hasAESGCMHardwareSupport = currentAESSupport }() |
| |
| tests := []struct { |
| name string |
| clientCiphers []uint16 |
| serverHasAESGCM bool |
| serverCiphers []uint16 |
| expectedCipher uint16 |
| }{ |
| { |
| name: "server has hardware AES, client doesn't (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| { |
| name: "client prefers AES-GCM, server doesn't have hardware AES (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| { |
| name: "client prefers AES-GCM, server has hardware AES (pick AES-GCM)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| { |
| name: "client prefers AES-GCM and sends GREASE, server has hardware AES (pick AES-GCM)", |
| clientCiphers: []uint16{ |
| 0x0A0A, // GREASE value |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| { |
| name: "client prefers AES-GCM and doesn't support ChaCha, server doesn't have hardware AES (pick AES-GCM)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| { |
| name: "client prefers AES-GCM and AES-CBC over ChaCha, server doesn't have hardware AES (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| { |
| name: "client prefers AES-GCM over ChaCha and sends GREASE, server doesn't have hardware AES (pick ChaCha)", |
| clientCiphers: []uint16{ |
| 0x0A0A, // GREASE value |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| { |
| name: "client supports multiple AES-GCM, server doesn't have hardware AES and doesn't support ChaCha (AES-GCM)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| serverHasAESGCM: false, |
| serverCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| expectedCipher: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| }, |
| { |
| name: "client prefers AES-GCM, server has hardware but doesn't support AES (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| TLS_RSA_WITH_AES_128_CBC_SHA, |
| }, |
| serverHasAESGCM: true, |
| serverCiphers: []uint16{ |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| expectedCipher: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, |
| }, |
| } |
| |
| for _, tc := range tests { |
| t.Run(tc.name, func(t *testing.T) { |
| hasAESGCMHardwareSupport = tc.serverHasAESGCM |
| hs := &serverHandshakeState{ |
| c: &Conn{ |
| config: &Config{ |
| CipherSuites: tc.serverCiphers, |
| }, |
| vers: VersionTLS12, |
| }, |
| clientHello: &clientHelloMsg{ |
| cipherSuites: tc.clientCiphers, |
| vers: VersionTLS12, |
| }, |
| ecdheOk: true, |
| rsaSignOk: true, |
| rsaDecryptOk: true, |
| } |
| |
| err := hs.pickCipherSuite() |
| if err != nil { |
| t.Errorf("pickCipherSuite failed: %s", err) |
| } |
| |
| if tc.expectedCipher != hs.suite.id { |
| t.Errorf("unexpected cipher chosen: want %d, got %d", tc.expectedCipher, hs.suite.id) |
| } |
| }) |
| } |
| } |
| |
| func TestAESCipherReorderingTLS13(t *testing.T) { |
| currentAESSupport := hasAESGCMHardwareSupport |
| defer func() { hasAESGCMHardwareSupport = currentAESSupport }() |
| |
| tests := []struct { |
| name string |
| clientCiphers []uint16 |
| serverHasAESGCM bool |
| expectedCipher uint16 |
| }{ |
| { |
| name: "server has hardware AES, client doesn't (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_CHACHA20_POLY1305_SHA256, |
| TLS_AES_128_GCM_SHA256, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| { |
| name: "neither server nor client have hardware AES (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_CHACHA20_POLY1305_SHA256, |
| TLS_AES_128_GCM_SHA256, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| { |
| name: "client prefers AES, server doesn't have hardware (pick ChaCha)", |
| clientCiphers: []uint16{ |
| TLS_AES_128_GCM_SHA256, |
| TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| { |
| name: "client prefers AES and sends GREASE, server doesn't have hardware (pick ChaCha)", |
| clientCiphers: []uint16{ |
| 0x0A0A, // GREASE value |
| TLS_AES_128_GCM_SHA256, |
| TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| serverHasAESGCM: false, |
| expectedCipher: TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| { |
| name: "client prefers AES, server has hardware AES (pick AES)", |
| clientCiphers: []uint16{ |
| TLS_AES_128_GCM_SHA256, |
| TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_AES_128_GCM_SHA256, |
| }, |
| { |
| name: "client prefers AES and sends GREASE, server has hardware AES (pick AES)", |
| clientCiphers: []uint16{ |
| 0x0A0A, // GREASE value |
| TLS_AES_128_GCM_SHA256, |
| TLS_CHACHA20_POLY1305_SHA256, |
| }, |
| serverHasAESGCM: true, |
| expectedCipher: TLS_AES_128_GCM_SHA256, |
| }, |
| } |
| |
| for _, tc := range tests { |
| t.Run(tc.name, func(t *testing.T) { |
| hasAESGCMHardwareSupport = tc.serverHasAESGCM |
| hs := &serverHandshakeStateTLS13{ |
| c: &Conn{ |
| config: &Config{}, |
| vers: VersionTLS13, |
| }, |
| clientHello: &clientHelloMsg{ |
| cipherSuites: tc.clientCiphers, |
| supportedVersions: []uint16{VersionTLS13}, |
| compressionMethods: []uint8{compressionNone}, |
| keyShares: []keyShare{{group: X25519, data: curve25519.Basepoint}}, |
| }, |
| } |
| |
| err := hs.processClientHello() |
| if err != nil { |
| t.Errorf("pickCipherSuite failed: %s", err) |
| } |
| |
| if tc.expectedCipher != hs.suite.id { |
| t.Errorf("unexpected cipher chosen: want %d, got %d", tc.expectedCipher, hs.suite.id) |
| } |
| }) |
| } |
| } |
| |
| // TestServerHandshakeContextCancellation tests that canceling |
| // the context given to the server side conn.HandshakeContext |
| // interrupts the in-progress handshake. |
| func TestServerHandshakeContextCancellation(t *testing.T) { |
| c, s := localPipe(t) |
| ctx, cancel := context.WithCancel(context.Background()) |
| unblockClient := make(chan struct{}) |
| defer close(unblockClient) |
| go func() { |
| cancel() |
| <-unblockClient |
| _ = c.Close() |
| }() |
| conn := Server(s, testConfig) |
| // Initiates server side handshake, which will block until a client hello is read |
| // unless the cancellation works. |
| err := conn.HandshakeContext(ctx) |
| if err == nil { |
| t.Fatal("Server handshake did not error when the context was canceled") |
| } |
| if err != context.Canceled { |
| t.Errorf("Unexpected server handshake error: %v", err) |
| } |
| if runtime.GOARCH == "wasm" { |
| t.Skip("conn.Close does not error as expected when called multiple times on WASM") |
| } |
| err = conn.Close() |
| if err == nil { |
| t.Error("Server connection was not closed when the context was canceled") |
| } |
| } |
| |
| // TestHandshakeContextHierarchy tests whether the contexts |
| // available to GetClientCertificate and GetCertificate are |
| // derived from the context provided to HandshakeContext, and |
| // that those contexts are canceled after HandshakeContext has |
| // returned. |
| func TestHandshakeContextHierarchy(t *testing.T) { |
| c, s := localPipe(t) |
| clientErr := make(chan error, 1) |
| clientConfig := testConfig.Clone() |
| serverConfig := testConfig.Clone() |
| ctx, cancel := context.WithCancel(context.Background()) |
| defer cancel() |
| key := struct{}{} |
| ctx = context.WithValue(ctx, key, true) |
| go func() { |
| defer close(clientErr) |
| defer c.Close() |
| var innerCtx context.Context |
| clientConfig.Certificates = nil |
| clientConfig.GetClientCertificate = func(certificateRequest *CertificateRequestInfo) (*Certificate, error) { |
| if val, ok := certificateRequest.Context().Value(key).(bool); !ok || !val { |
| t.Errorf("GetClientCertificate context was not child of HandshakeContext") |
| } |
| innerCtx = certificateRequest.Context() |
| return &Certificate{ |
| Certificate: [][]byte{testRSACertificate}, |
| PrivateKey: testRSAPrivateKey, |
| }, nil |
| } |
| cli := Client(c, clientConfig) |
| err := cli.HandshakeContext(ctx) |
| if err != nil { |
| clientErr <- err |
| return |
| } |
| select { |
| case <-innerCtx.Done(): |
| default: |
| t.Errorf("GetClientCertificate context was not canceled after HandshakeContext returned.") |
| } |
| }() |
| var innerCtx context.Context |
| serverConfig.Certificates = nil |
| serverConfig.ClientAuth = RequestClientCert |
| serverConfig.GetCertificate = func(clientHello *ClientHelloInfo) (*Certificate, error) { |
| if val, ok := clientHello.Context().Value(key).(bool); !ok || !val { |
| t.Errorf("GetClientCertificate context was not child of HandshakeContext") |
| } |
| innerCtx = clientHello.Context() |
| return &Certificate{ |
| Certificate: [][]byte{testRSACertificate}, |
| PrivateKey: testRSAPrivateKey, |
| }, nil |
| } |
| conn := Server(s, serverConfig) |
| err := conn.HandshakeContext(ctx) |
| if err != nil { |
| t.Errorf("Unexpected server handshake error: %v", err) |
| } |
| select { |
| case <-innerCtx.Done(): |
| default: |
| t.Errorf("GetCertificate context was not canceled after HandshakeContext returned.") |
| } |
| if err := <-clientErr; err != nil { |
| t.Errorf("Unexpected client error: %v", err) |
| } |
| } |