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-rw-r--r--src/crypto/tls/tls_test.go1611
1 files changed, 1611 insertions, 0 deletions
diff --git a/src/crypto/tls/tls_test.go b/src/crypto/tls/tls_test.go
new file mode 100644
index 0000000..d8a43ad
--- /dev/null
+++ b/src/crypto/tls/tls_test.go
@@ -0,0 +1,1611 @@
+// Copyright 2012 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/x509"
+ "encoding/json"
+ "errors"
+ "fmt"
+ "internal/testenv"
+ "io"
+ "math"
+ "net"
+ "os"
+ "reflect"
+ "sort"
+ "strings"
+ "testing"
+ "time"
+)
+
+var rsaCertPEM = `-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+`
+
+var rsaKeyPEM = testingKey(`-----BEGIN RSA TESTING KEY-----
+MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
+k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
+6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
+MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
+SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
+xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
+D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
+-----END RSA TESTING KEY-----
+`)
+
+// keyPEM is the same as rsaKeyPEM, but declares itself as just
+// "PRIVATE KEY", not "RSA PRIVATE KEY". https://golang.org/issue/4477
+var keyPEM = testingKey(`-----BEGIN TESTING KEY-----
+MIIBOwIBAAJBANLJhPHhITqQbPklG3ibCVxwGMRfp/v4XqhfdQHdcVfHap6NQ5Wo
+k/4xIA+ui35/MmNartNuC+BdZ1tMuVCPFZcCAwEAAQJAEJ2N+zsR0Xn8/Q6twa4G
+6OB1M1WO+k+ztnX/1SvNeWu8D6GImtupLTYgjZcHufykj09jiHmjHx8u8ZZB/o1N
+MQIhAPW+eyZo7ay3lMz1V01WVjNKK9QSn1MJlb06h/LuYv9FAiEA25WPedKgVyCW
+SmUwbPw8fnTcpqDWE3yTO3vKcebqMSsCIBF3UmVue8YU3jybC3NxuXq3wNm34R8T
+xVLHwDXh/6NJAiEAl2oHGGLz64BuAfjKrqwz7qMYr9HCLIe/YsoWq/olzScCIQDi
+D2lWusoe2/nEqfDVVWGWlyJ7yOmqaVm/iNUN9B2N2g==
+-----END TESTING KEY-----
+`)
+
+var ecdsaCertPEM = `-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+`
+
+var ecdsaKeyPEM = testingKey(`-----BEGIN EC PARAMETERS-----
+BgUrgQQAIw==
+-----END EC PARAMETERS-----
+-----BEGIN EC TESTING KEY-----
+MIHcAgEBBEIBrsoKp0oqcv6/JovJJDoDVSGWdirrkgCWxrprGlzB9o0X8fV675X0
+NwuBenXFfeZvVcwluO7/Q9wkYoPd/t3jGImgBwYFK4EEACOhgYkDgYYABAFj36bL
+06h5JRGUNB1X/Hwuw64uKW2GGJLVPPhoYMcg/ALWaW+d/t+DmV5xikwKssuFq4Bz
+VQldyCXTXGgu7OC0AQCC/Y/+ODK3NFKlRi+AsG3VQDSV4tgHLqZBBus0S6pPcg1q
+kohxS/xfFg/TEwRSSws+roJr4JFKpO2t3/be5OdqmQ==
+-----END EC TESTING KEY-----
+`)
+
+var keyPairTests = []struct {
+ algo string
+ cert string
+ key string
+}{
+ {"ECDSA", ecdsaCertPEM, ecdsaKeyPEM},
+ {"RSA", rsaCertPEM, rsaKeyPEM},
+ {"RSA-untyped", rsaCertPEM, keyPEM}, // golang.org/issue/4477
+}
+
+func TestX509KeyPair(t *testing.T) {
+ t.Parallel()
+ var pem []byte
+ for _, test := range keyPairTests {
+ pem = []byte(test.cert + test.key)
+ if _, err := X509KeyPair(pem, pem); err != nil {
+ t.Errorf("Failed to load %s cert followed by %s key: %s", test.algo, test.algo, err)
+ }
+ pem = []byte(test.key + test.cert)
+ if _, err := X509KeyPair(pem, pem); err != nil {
+ t.Errorf("Failed to load %s key followed by %s cert: %s", test.algo, test.algo, err)
+ }
+ }
+}
+
+func TestX509KeyPairErrors(t *testing.T) {
+ _, err := X509KeyPair([]byte(rsaKeyPEM), []byte(rsaCertPEM))
+ if err == nil {
+ t.Fatalf("X509KeyPair didn't return an error when arguments were switched")
+ }
+ if subStr := "been switched"; !strings.Contains(err.Error(), subStr) {
+ t.Fatalf("Expected %q in the error when switching arguments to X509KeyPair, but the error was %q", subStr, err)
+ }
+
+ _, err = X509KeyPair([]byte(rsaCertPEM), []byte(rsaCertPEM))
+ if err == nil {
+ t.Fatalf("X509KeyPair didn't return an error when both arguments were certificates")
+ }
+ if subStr := "certificate"; !strings.Contains(err.Error(), subStr) {
+ t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were certificates, but the error was %q", subStr, err)
+ }
+
+ const nonsensePEM = `
+-----BEGIN NONSENSE-----
+Zm9vZm9vZm9v
+-----END NONSENSE-----
+`
+
+ _, err = X509KeyPair([]byte(nonsensePEM), []byte(nonsensePEM))
+ if err == nil {
+ t.Fatalf("X509KeyPair didn't return an error when both arguments were nonsense")
+ }
+ if subStr := "NONSENSE"; !strings.Contains(err.Error(), subStr) {
+ t.Fatalf("Expected %q in the error when both arguments to X509KeyPair were nonsense, but the error was %q", subStr, err)
+ }
+}
+
+func TestX509MixedKeyPair(t *testing.T) {
+ if _, err := X509KeyPair([]byte(rsaCertPEM), []byte(ecdsaKeyPEM)); err == nil {
+ t.Error("Load of RSA certificate succeeded with ECDSA private key")
+ }
+ if _, err := X509KeyPair([]byte(ecdsaCertPEM), []byte(rsaKeyPEM)); err == nil {
+ t.Error("Load of ECDSA certificate succeeded with RSA private key")
+ }
+}
+
+func newLocalListener(t testing.TB) net.Listener {
+ ln, err := net.Listen("tcp", "127.0.0.1:0")
+ if err != nil {
+ ln, err = net.Listen("tcp6", "[::1]:0")
+ }
+ if err != nil {
+ t.Fatal(err)
+ }
+ return ln
+}
+
+func TestDialTimeout(t *testing.T) {
+ if testing.Short() {
+ t.Skip("skipping in short mode")
+ }
+ listener := newLocalListener(t)
+
+ addr := listener.Addr().String()
+ defer listener.Close()
+
+ complete := make(chan bool)
+ defer close(complete)
+
+ go func() {
+ conn, err := listener.Accept()
+ if err != nil {
+ t.Error(err)
+ return
+ }
+ <-complete
+ conn.Close()
+ }()
+
+ dialer := &net.Dialer{
+ Timeout: 10 * time.Millisecond,
+ }
+
+ var err error
+ if _, err = DialWithDialer(dialer, "tcp", addr, nil); err == nil {
+ t.Fatal("DialWithTimeout completed successfully")
+ }
+
+ if !isTimeoutError(err) {
+ t.Errorf("resulting error not a timeout: %v\nType %T: %#v", err, err, err)
+ }
+}
+
+func TestDeadlineOnWrite(t *testing.T) {
+ if testing.Short() {
+ t.Skip("skipping in short mode")
+ }
+
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ srvCh := make(chan *Conn, 1)
+
+ go func() {
+ sconn, err := ln.Accept()
+ if err != nil {
+ srvCh <- nil
+ return
+ }
+ srv := Server(sconn, testConfig.Clone())
+ if err := srv.Handshake(); err != nil {
+ srvCh <- nil
+ return
+ }
+ srvCh <- srv
+ }()
+
+ clientConfig := testConfig.Clone()
+ clientConfig.MaxVersion = VersionTLS12
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer conn.Close()
+
+ srv := <-srvCh
+ if srv == nil {
+ t.Error(err)
+ }
+
+ // Make sure the client/server is setup correctly and is able to do a typical Write/Read
+ buf := make([]byte, 6)
+ if _, err := srv.Write([]byte("foobar")); err != nil {
+ t.Errorf("Write err: %v", err)
+ }
+ if n, err := conn.Read(buf); n != 6 || err != nil || string(buf) != "foobar" {
+ t.Errorf("Read = %d, %v, data %q; want 6, nil, foobar", n, err, buf)
+ }
+
+ // Set a deadline which should cause Write to timeout
+ if err = srv.SetDeadline(time.Now()); err != nil {
+ t.Fatalf("SetDeadline(time.Now()) err: %v", err)
+ }
+ if _, err = srv.Write([]byte("should fail")); err == nil {
+ t.Fatal("Write should have timed out")
+ }
+
+ // Clear deadline and make sure it still times out
+ if err = srv.SetDeadline(time.Time{}); err != nil {
+ t.Fatalf("SetDeadline(time.Time{}) err: %v", err)
+ }
+ if _, err = srv.Write([]byte("This connection is permanently broken")); err == nil {
+ t.Fatal("Write which previously failed should still time out")
+ }
+
+ // Verify the error
+ if ne := err.(net.Error); ne.Temporary() != false {
+ t.Error("Write timed out but incorrectly classified the error as Temporary")
+ }
+ if !isTimeoutError(err) {
+ t.Error("Write timed out but did not classify the error as a Timeout")
+ }
+}
+
+type readerFunc func([]byte) (int, error)
+
+func (f readerFunc) Read(b []byte) (int, error) { return f(b) }
+
+// TestDialer tests that tls.Dialer.DialContext can abort in the middle of a handshake.
+// (The other cases are all handled by the existing dial tests in this package, which
+// all also flow through the same code shared code paths)
+func TestDialer(t *testing.T) {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ unblockServer := make(chan struct{}) // close-only
+ defer close(unblockServer)
+ go func() {
+ conn, err := ln.Accept()
+ if err != nil {
+ return
+ }
+ defer conn.Close()
+ <-unblockServer
+ }()
+
+ ctx, cancel := context.WithCancel(context.Background())
+ d := Dialer{Config: &Config{
+ Rand: readerFunc(func(b []byte) (n int, err error) {
+ // By the time crypto/tls wants randomness, that means it has a TCP
+ // connection, so we're past the Dialer's dial and now blocked
+ // in a handshake. Cancel our context and see if we get unstuck.
+ // (Our TCP listener above never reads or writes, so the Handshake
+ // would otherwise be stuck forever)
+ cancel()
+ return len(b), nil
+ }),
+ ServerName: "foo",
+ }}
+ _, err := d.DialContext(ctx, "tcp", ln.Addr().String())
+ if err != context.Canceled {
+ t.Errorf("err = %v; want context.Canceled", err)
+ }
+}
+
+func isTimeoutError(err error) bool {
+ if ne, ok := err.(net.Error); ok {
+ return ne.Timeout()
+ }
+ return false
+}
+
+// tests that Conn.Read returns (non-zero, io.EOF) instead of
+// (non-zero, nil) when a Close (alertCloseNotify) is sitting right
+// behind the application data in the buffer.
+func TestConnReadNonzeroAndEOF(t *testing.T) {
+ // This test is racy: it assumes that after a write to a
+ // localhost TCP connection, the peer TCP connection can
+ // immediately read it. Because it's racy, we skip this test
+ // in short mode, and then retry it several times with an
+ // increasing sleep in between our final write (via srv.Close
+ // below) and the following read.
+ if testing.Short() {
+ t.Skip("skipping in short mode")
+ }
+ var err error
+ for delay := time.Millisecond; delay <= 64*time.Millisecond; delay *= 2 {
+ if err = testConnReadNonzeroAndEOF(t, delay); err == nil {
+ return
+ }
+ }
+ t.Error(err)
+}
+
+func testConnReadNonzeroAndEOF(t *testing.T, delay time.Duration) error {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ srvCh := make(chan *Conn, 1)
+ var serr error
+ go func() {
+ sconn, err := ln.Accept()
+ if err != nil {
+ serr = err
+ srvCh <- nil
+ return
+ }
+ serverConfig := testConfig.Clone()
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ serr = fmt.Errorf("handshake: %v", err)
+ srvCh <- nil
+ return
+ }
+ srvCh <- srv
+ }()
+
+ clientConfig := testConfig.Clone()
+ // In TLS 1.3, alerts are encrypted and disguised as application data, so
+ // the opportunistic peek won't work.
+ clientConfig.MaxVersion = VersionTLS12
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer conn.Close()
+
+ srv := <-srvCh
+ if srv == nil {
+ return serr
+ }
+
+ buf := make([]byte, 6)
+
+ srv.Write([]byte("foobar"))
+ n, err := conn.Read(buf)
+ if n != 6 || err != nil || string(buf) != "foobar" {
+ return fmt.Errorf("Read = %d, %v, data %q; want 6, nil, foobar", n, err, buf)
+ }
+
+ srv.Write([]byte("abcdef"))
+ srv.Close()
+ time.Sleep(delay)
+ n, err = conn.Read(buf)
+ if n != 6 || string(buf) != "abcdef" {
+ return fmt.Errorf("Read = %d, buf= %q; want 6, abcdef", n, buf)
+ }
+ if err != io.EOF {
+ return fmt.Errorf("Second Read error = %v; want io.EOF", err)
+ }
+ return nil
+}
+
+func TestTLSUniqueMatches(t *testing.T) {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ serverTLSUniques := make(chan []byte)
+ parentDone := make(chan struct{})
+ childDone := make(chan struct{})
+ defer close(parentDone)
+ go func() {
+ defer close(childDone)
+ for i := 0; i < 2; i++ {
+ sconn, err := ln.Accept()
+ if err != nil {
+ t.Error(err)
+ return
+ }
+ serverConfig := testConfig.Clone()
+ serverConfig.MaxVersion = VersionTLS12 // TLSUnique is not defined in TLS 1.3
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ t.Error(err)
+ return
+ }
+ select {
+ case <-parentDone:
+ return
+ case serverTLSUniques <- srv.ConnectionState().TLSUnique:
+ }
+ }
+ }()
+
+ clientConfig := testConfig.Clone()
+ clientConfig.ClientSessionCache = NewLRUClientSessionCache(1)
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ var serverTLSUniquesValue []byte
+ select {
+ case <-childDone:
+ return
+ case serverTLSUniquesValue = <-serverTLSUniques:
+ }
+
+ if !bytes.Equal(conn.ConnectionState().TLSUnique, serverTLSUniquesValue) {
+ t.Error("client and server channel bindings differ")
+ }
+ conn.Close()
+
+ conn, err = Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer conn.Close()
+ if !conn.ConnectionState().DidResume {
+ t.Error("second session did not use resumption")
+ }
+
+ select {
+ case <-childDone:
+ return
+ case serverTLSUniquesValue = <-serverTLSUniques:
+ }
+
+ if !bytes.Equal(conn.ConnectionState().TLSUnique, serverTLSUniquesValue) {
+ t.Error("client and server channel bindings differ when session resumption is used")
+ }
+}
+
+func TestVerifyHostname(t *testing.T) {
+ testenv.MustHaveExternalNetwork(t)
+
+ c, err := Dial("tcp", "www.google.com:https", nil)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if err := c.VerifyHostname("www.google.com"); err != nil {
+ t.Fatalf("verify www.google.com: %v", err)
+ }
+ if err := c.VerifyHostname("www.yahoo.com"); err == nil {
+ t.Fatalf("verify www.yahoo.com succeeded")
+ }
+
+ c, err = Dial("tcp", "www.google.com:https", &Config{InsecureSkipVerify: true})
+ if err != nil {
+ t.Fatal(err)
+ }
+ if err := c.VerifyHostname("www.google.com"); err == nil {
+ t.Fatalf("verify www.google.com succeeded with InsecureSkipVerify=true")
+ }
+}
+
+func TestConnCloseBreakingWrite(t *testing.T) {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ srvCh := make(chan *Conn, 1)
+ var serr error
+ var sconn net.Conn
+ go func() {
+ var err error
+ sconn, err = ln.Accept()
+ if err != nil {
+ serr = err
+ srvCh <- nil
+ return
+ }
+ serverConfig := testConfig.Clone()
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ serr = fmt.Errorf("handshake: %v", err)
+ srvCh <- nil
+ return
+ }
+ srvCh <- srv
+ }()
+
+ cconn, err := net.Dial("tcp", ln.Addr().String())
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer cconn.Close()
+
+ conn := &changeImplConn{
+ Conn: cconn,
+ }
+
+ clientConfig := testConfig.Clone()
+ tconn := Client(conn, clientConfig)
+ if err := tconn.Handshake(); err != nil {
+ t.Fatal(err)
+ }
+
+ srv := <-srvCh
+ if srv == nil {
+ t.Fatal(serr)
+ }
+ defer sconn.Close()
+
+ connClosed := make(chan struct{})
+ conn.closeFunc = func() error {
+ close(connClosed)
+ return nil
+ }
+
+ inWrite := make(chan bool, 1)
+ var errConnClosed = errors.New("conn closed for test")
+ conn.writeFunc = func(p []byte) (n int, err error) {
+ inWrite <- true
+ <-connClosed
+ return 0, errConnClosed
+ }
+
+ closeReturned := make(chan bool, 1)
+ go func() {
+ <-inWrite
+ tconn.Close() // test that this doesn't block forever.
+ closeReturned <- true
+ }()
+
+ _, err = tconn.Write([]byte("foo"))
+ if err != errConnClosed {
+ t.Errorf("Write error = %v; want errConnClosed", err)
+ }
+
+ <-closeReturned
+ if err := tconn.Close(); err != net.ErrClosed {
+ t.Errorf("Close error = %v; want net.ErrClosed", err)
+ }
+}
+
+func TestConnCloseWrite(t *testing.T) {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ clientDoneChan := make(chan struct{})
+
+ serverCloseWrite := func() error {
+ sconn, err := ln.Accept()
+ if err != nil {
+ return fmt.Errorf("accept: %v", err)
+ }
+ defer sconn.Close()
+
+ serverConfig := testConfig.Clone()
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ return fmt.Errorf("handshake: %v", err)
+ }
+ defer srv.Close()
+
+ data, err := io.ReadAll(srv)
+ if err != nil {
+ return err
+ }
+ if len(data) > 0 {
+ return fmt.Errorf("Read data = %q; want nothing", data)
+ }
+
+ if err := srv.CloseWrite(); err != nil {
+ return fmt.Errorf("server CloseWrite: %v", err)
+ }
+
+ // Wait for clientCloseWrite to finish, so we know we
+ // tested the CloseWrite before we defer the
+ // sconn.Close above, which would also cause the
+ // client to unblock like CloseWrite.
+ <-clientDoneChan
+ return nil
+ }
+
+ clientCloseWrite := func() error {
+ defer close(clientDoneChan)
+
+ clientConfig := testConfig.Clone()
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ return err
+ }
+ if err := conn.Handshake(); err != nil {
+ return err
+ }
+ defer conn.Close()
+
+ if err := conn.CloseWrite(); err != nil {
+ return fmt.Errorf("client CloseWrite: %v", err)
+ }
+
+ if _, err := conn.Write([]byte{0}); err != errShutdown {
+ return fmt.Errorf("CloseWrite error = %v; want errShutdown", err)
+ }
+
+ data, err := io.ReadAll(conn)
+ if err != nil {
+ return err
+ }
+ if len(data) > 0 {
+ return fmt.Errorf("Read data = %q; want nothing", data)
+ }
+ return nil
+ }
+
+ errChan := make(chan error, 2)
+
+ go func() { errChan <- serverCloseWrite() }()
+ go func() { errChan <- clientCloseWrite() }()
+
+ for i := 0; i < 2; i++ {
+ select {
+ case err := <-errChan:
+ if err != nil {
+ t.Fatal(err)
+ }
+ case <-time.After(10 * time.Second):
+ t.Fatal("deadlock")
+ }
+ }
+
+ // Also test CloseWrite being called before the handshake is
+ // finished:
+ {
+ ln2 := newLocalListener(t)
+ defer ln2.Close()
+
+ netConn, err := net.Dial("tcp", ln2.Addr().String())
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer netConn.Close()
+ conn := Client(netConn, testConfig.Clone())
+
+ if err := conn.CloseWrite(); err != errEarlyCloseWrite {
+ t.Errorf("CloseWrite error = %v; want errEarlyCloseWrite", err)
+ }
+ }
+}
+
+func TestWarningAlertFlood(t *testing.T) {
+ ln := newLocalListener(t)
+ defer ln.Close()
+
+ server := func() error {
+ sconn, err := ln.Accept()
+ if err != nil {
+ return fmt.Errorf("accept: %v", err)
+ }
+ defer sconn.Close()
+
+ serverConfig := testConfig.Clone()
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ return fmt.Errorf("handshake: %v", err)
+ }
+ defer srv.Close()
+
+ _, err = io.ReadAll(srv)
+ if err == nil {
+ return errors.New("unexpected lack of error from server")
+ }
+ const expected = "too many ignored"
+ if str := err.Error(); !strings.Contains(str, expected) {
+ return fmt.Errorf("expected error containing %q, but saw: %s", expected, str)
+ }
+
+ return nil
+ }
+
+ errChan := make(chan error, 1)
+ go func() { errChan <- server() }()
+
+ clientConfig := testConfig.Clone()
+ clientConfig.MaxVersion = VersionTLS12 // there are no warning alerts in TLS 1.3
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer conn.Close()
+ if err := conn.Handshake(); err != nil {
+ t.Fatal(err)
+ }
+
+ for i := 0; i < maxUselessRecords+1; i++ {
+ conn.sendAlert(alertNoRenegotiation)
+ }
+
+ if err := <-errChan; err != nil {
+ t.Fatal(err)
+ }
+}
+
+func TestCloneFuncFields(t *testing.T) {
+ const expectedCount = 6
+ called := 0
+
+ c1 := Config{
+ Time: func() time.Time {
+ called |= 1 << 0
+ return time.Time{}
+ },
+ GetCertificate: func(*ClientHelloInfo) (*Certificate, error) {
+ called |= 1 << 1
+ return nil, nil
+ },
+ GetClientCertificate: func(*CertificateRequestInfo) (*Certificate, error) {
+ called |= 1 << 2
+ return nil, nil
+ },
+ GetConfigForClient: func(*ClientHelloInfo) (*Config, error) {
+ called |= 1 << 3
+ return nil, nil
+ },
+ VerifyPeerCertificate: func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
+ called |= 1 << 4
+ return nil
+ },
+ VerifyConnection: func(ConnectionState) error {
+ called |= 1 << 5
+ return nil
+ },
+ }
+
+ c2 := c1.Clone()
+
+ c2.Time()
+ c2.GetCertificate(nil)
+ c2.GetClientCertificate(nil)
+ c2.GetConfigForClient(nil)
+ c2.VerifyPeerCertificate(nil, nil)
+ c2.VerifyConnection(ConnectionState{})
+
+ if called != (1<<expectedCount)-1 {
+ t.Fatalf("expected %d calls but saw calls %b", expectedCount, called)
+ }
+}
+
+func TestCloneNonFuncFields(t *testing.T) {
+ var c1 Config
+ v := reflect.ValueOf(&c1).Elem()
+
+ typ := v.Type()
+ for i := 0; i < typ.NumField(); i++ {
+ f := v.Field(i)
+ // testing/quick can't handle functions or interfaces and so
+ // isn't used here.
+ switch fn := typ.Field(i).Name; fn {
+ case "Rand":
+ f.Set(reflect.ValueOf(io.Reader(os.Stdin)))
+ case "Time", "GetCertificate", "GetConfigForClient", "VerifyPeerCertificate", "VerifyConnection", "GetClientCertificate":
+ // DeepEqual can't compare functions. If you add a
+ // function field to this list, you must also change
+ // TestCloneFuncFields to ensure that the func field is
+ // cloned.
+ case "Certificates":
+ f.Set(reflect.ValueOf([]Certificate{
+ {Certificate: [][]byte{{'b'}}},
+ }))
+ case "NameToCertificate":
+ f.Set(reflect.ValueOf(map[string]*Certificate{"a": nil}))
+ case "RootCAs", "ClientCAs":
+ f.Set(reflect.ValueOf(x509.NewCertPool()))
+ case "ClientSessionCache":
+ f.Set(reflect.ValueOf(NewLRUClientSessionCache(10)))
+ case "KeyLogWriter":
+ f.Set(reflect.ValueOf(io.Writer(os.Stdout)))
+ case "NextProtos":
+ f.Set(reflect.ValueOf([]string{"a", "b"}))
+ case "ServerName":
+ f.Set(reflect.ValueOf("b"))
+ case "ClientAuth":
+ f.Set(reflect.ValueOf(VerifyClientCertIfGiven))
+ case "InsecureSkipVerify", "SessionTicketsDisabled", "DynamicRecordSizingDisabled", "PreferServerCipherSuites":
+ f.Set(reflect.ValueOf(true))
+ case "MinVersion", "MaxVersion":
+ f.Set(reflect.ValueOf(uint16(VersionTLS12)))
+ case "SessionTicketKey":
+ f.Set(reflect.ValueOf([32]byte{}))
+ case "CipherSuites":
+ f.Set(reflect.ValueOf([]uint16{1, 2}))
+ case "CurvePreferences":
+ f.Set(reflect.ValueOf([]CurveID{CurveP256}))
+ case "Renegotiation":
+ f.Set(reflect.ValueOf(RenegotiateOnceAsClient))
+ case "mutex", "autoSessionTicketKeys", "sessionTicketKeys":
+ continue // these are unexported fields that are handled separately
+ default:
+ t.Errorf("all fields must be accounted for, but saw unknown field %q", fn)
+ }
+ }
+ // Set the unexported fields related to session ticket keys, which are copied with Clone().
+ c1.autoSessionTicketKeys = []ticketKey{c1.ticketKeyFromBytes(c1.SessionTicketKey)}
+ c1.sessionTicketKeys = []ticketKey{c1.ticketKeyFromBytes(c1.SessionTicketKey)}
+
+ c2 := c1.Clone()
+ if !reflect.DeepEqual(&c1, c2) {
+ t.Errorf("clone failed to copy a field")
+ }
+}
+
+func TestCloneNilConfig(t *testing.T) {
+ var config *Config
+ if cc := config.Clone(); cc != nil {
+ t.Fatalf("Clone with nil should return nil, got: %+v", cc)
+ }
+}
+
+// changeImplConn is a net.Conn which can change its Write and Close
+// methods.
+type changeImplConn struct {
+ net.Conn
+ writeFunc func([]byte) (int, error)
+ closeFunc func() error
+}
+
+func (w *changeImplConn) Write(p []byte) (n int, err error) {
+ if w.writeFunc != nil {
+ return w.writeFunc(p)
+ }
+ return w.Conn.Write(p)
+}
+
+func (w *changeImplConn) Close() error {
+ if w.closeFunc != nil {
+ return w.closeFunc()
+ }
+ return w.Conn.Close()
+}
+
+func throughput(b *testing.B, version uint16, totalBytes int64, dynamicRecordSizingDisabled bool) {
+ ln := newLocalListener(b)
+ defer ln.Close()
+
+ N := b.N
+
+ // Less than 64KB because Windows appears to use a TCP rwin < 64KB.
+ // See Issue #15899.
+ const bufsize = 32 << 10
+
+ go func() {
+ buf := make([]byte, bufsize)
+ for i := 0; i < N; i++ {
+ sconn, err := ln.Accept()
+ if err != nil {
+ // panic rather than synchronize to avoid benchmark overhead
+ // (cannot call b.Fatal in goroutine)
+ panic(fmt.Errorf("accept: %v", err))
+ }
+ serverConfig := testConfig.Clone()
+ serverConfig.CipherSuites = nil // the defaults may prefer faster ciphers
+ serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
+ srv := Server(sconn, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ panic(fmt.Errorf("handshake: %v", err))
+ }
+ if _, err := io.CopyBuffer(srv, srv, buf); err != nil {
+ panic(fmt.Errorf("copy buffer: %v", err))
+ }
+ }
+ }()
+
+ b.SetBytes(totalBytes)
+ clientConfig := testConfig.Clone()
+ clientConfig.CipherSuites = nil // the defaults may prefer faster ciphers
+ clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
+ clientConfig.MaxVersion = version
+
+ buf := make([]byte, bufsize)
+ chunks := int(math.Ceil(float64(totalBytes) / float64(len(buf))))
+ for i := 0; i < N; i++ {
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ b.Fatal(err)
+ }
+ for j := 0; j < chunks; j++ {
+ _, err := conn.Write(buf)
+ if err != nil {
+ b.Fatal(err)
+ }
+ _, err = io.ReadFull(conn, buf)
+ if err != nil {
+ b.Fatal(err)
+ }
+ }
+ conn.Close()
+ }
+}
+
+func BenchmarkThroughput(b *testing.B) {
+ for _, mode := range []string{"Max", "Dynamic"} {
+ for size := 1; size <= 64; size <<= 1 {
+ name := fmt.Sprintf("%sPacket/%dMB", mode, size)
+ b.Run(name, func(b *testing.B) {
+ b.Run("TLSv12", func(b *testing.B) {
+ throughput(b, VersionTLS12, int64(size<<20), mode == "Max")
+ })
+ b.Run("TLSv13", func(b *testing.B) {
+ throughput(b, VersionTLS13, int64(size<<20), mode == "Max")
+ })
+ })
+ }
+ }
+}
+
+type slowConn struct {
+ net.Conn
+ bps int
+}
+
+func (c *slowConn) Write(p []byte) (int, error) {
+ if c.bps == 0 {
+ panic("too slow")
+ }
+ t0 := time.Now()
+ wrote := 0
+ for wrote < len(p) {
+ time.Sleep(100 * time.Microsecond)
+ allowed := int(time.Since(t0).Seconds()*float64(c.bps)) / 8
+ if allowed > len(p) {
+ allowed = len(p)
+ }
+ if wrote < allowed {
+ n, err := c.Conn.Write(p[wrote:allowed])
+ wrote += n
+ if err != nil {
+ return wrote, err
+ }
+ }
+ }
+ return len(p), nil
+}
+
+func latency(b *testing.B, version uint16, bps int, dynamicRecordSizingDisabled bool) {
+ ln := newLocalListener(b)
+ defer ln.Close()
+
+ N := b.N
+
+ go func() {
+ for i := 0; i < N; i++ {
+ sconn, err := ln.Accept()
+ if err != nil {
+ // panic rather than synchronize to avoid benchmark overhead
+ // (cannot call b.Fatal in goroutine)
+ panic(fmt.Errorf("accept: %v", err))
+ }
+ serverConfig := testConfig.Clone()
+ serverConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
+ srv := Server(&slowConn{sconn, bps}, serverConfig)
+ if err := srv.Handshake(); err != nil {
+ panic(fmt.Errorf("handshake: %v", err))
+ }
+ io.Copy(srv, srv)
+ }
+ }()
+
+ clientConfig := testConfig.Clone()
+ clientConfig.DynamicRecordSizingDisabled = dynamicRecordSizingDisabled
+ clientConfig.MaxVersion = version
+
+ buf := make([]byte, 16384)
+ peek := make([]byte, 1)
+
+ for i := 0; i < N; i++ {
+ conn, err := Dial("tcp", ln.Addr().String(), clientConfig)
+ if err != nil {
+ b.Fatal(err)
+ }
+ // make sure we're connected and previous connection has stopped
+ if _, err := conn.Write(buf[:1]); err != nil {
+ b.Fatal(err)
+ }
+ if _, err := io.ReadFull(conn, peek); err != nil {
+ b.Fatal(err)
+ }
+ if _, err := conn.Write(buf); err != nil {
+ b.Fatal(err)
+ }
+ if _, err = io.ReadFull(conn, peek); err != nil {
+ b.Fatal(err)
+ }
+ conn.Close()
+ }
+}
+
+func BenchmarkLatency(b *testing.B) {
+ for _, mode := range []string{"Max", "Dynamic"} {
+ for _, kbps := range []int{200, 500, 1000, 2000, 5000} {
+ name := fmt.Sprintf("%sPacket/%dkbps", mode, kbps)
+ b.Run(name, func(b *testing.B) {
+ b.Run("TLSv12", func(b *testing.B) {
+ latency(b, VersionTLS12, kbps*1000, mode == "Max")
+ })
+ b.Run("TLSv13", func(b *testing.B) {
+ latency(b, VersionTLS13, kbps*1000, mode == "Max")
+ })
+ })
+ }
+ }
+}
+
+func TestConnectionStateMarshal(t *testing.T) {
+ cs := &ConnectionState{}
+ _, err := json.Marshal(cs)
+ if err != nil {
+ t.Errorf("json.Marshal failed on ConnectionState: %v", err)
+ }
+}
+
+func TestConnectionState(t *testing.T) {
+ issuer, err := x509.ParseCertificate(testRSACertificateIssuer)
+ if err != nil {
+ panic(err)
+ }
+ rootCAs := x509.NewCertPool()
+ rootCAs.AddCert(issuer)
+
+ now := func() time.Time { return time.Unix(1476984729, 0) }
+
+ const alpnProtocol = "golang"
+ const serverName = "example.golang"
+ var scts = [][]byte{[]byte("dummy sct 1"), []byte("dummy sct 2")}
+ var ocsp = []byte("dummy ocsp")
+
+ for _, v := range []uint16{VersionTLS12, VersionTLS13} {
+ var name string
+ switch v {
+ case VersionTLS12:
+ name = "TLSv12"
+ case VersionTLS13:
+ name = "TLSv13"
+ }
+ t.Run(name, func(t *testing.T) {
+ config := &Config{
+ Time: now,
+ Rand: zeroSource{},
+ Certificates: make([]Certificate, 1),
+ MaxVersion: v,
+ RootCAs: rootCAs,
+ ClientCAs: rootCAs,
+ ClientAuth: RequireAndVerifyClientCert,
+ NextProtos: []string{alpnProtocol},
+ ServerName: serverName,
+ }
+ config.Certificates[0].Certificate = [][]byte{testRSACertificate}
+ config.Certificates[0].PrivateKey = testRSAPrivateKey
+ config.Certificates[0].SignedCertificateTimestamps = scts
+ config.Certificates[0].OCSPStaple = ocsp
+
+ ss, cs, err := testHandshake(t, config, config)
+ if err != nil {
+ t.Fatalf("Handshake failed: %v", err)
+ }
+
+ if ss.Version != v || cs.Version != v {
+ t.Errorf("Got versions %x (server) and %x (client), expected %x", ss.Version, cs.Version, v)
+ }
+
+ if !ss.HandshakeComplete || !cs.HandshakeComplete {
+ t.Errorf("Got HandshakeComplete %v (server) and %v (client), expected true", ss.HandshakeComplete, cs.HandshakeComplete)
+ }
+
+ if ss.DidResume || cs.DidResume {
+ t.Errorf("Got DidResume %v (server) and %v (client), expected false", ss.DidResume, cs.DidResume)
+ }
+
+ if ss.CipherSuite == 0 || cs.CipherSuite == 0 {
+ t.Errorf("Got invalid cipher suite: %v (server) and %v (client)", ss.CipherSuite, cs.CipherSuite)
+ }
+
+ if ss.NegotiatedProtocol != alpnProtocol || cs.NegotiatedProtocol != alpnProtocol {
+ t.Errorf("Got negotiated protocol %q (server) and %q (client), expected %q", ss.NegotiatedProtocol, cs.NegotiatedProtocol, alpnProtocol)
+ }
+
+ if !cs.NegotiatedProtocolIsMutual {
+ t.Errorf("Got false NegotiatedProtocolIsMutual on the client side")
+ }
+ // NegotiatedProtocolIsMutual on the server side is unspecified.
+
+ if ss.ServerName != serverName {
+ t.Errorf("Got server name %q, expected %q", ss.ServerName, serverName)
+ }
+ if cs.ServerName != serverName {
+ t.Errorf("Got server name on client connection %q, expected %q", cs.ServerName, serverName)
+ }
+
+ if len(ss.PeerCertificates) != 1 || len(cs.PeerCertificates) != 1 {
+ t.Errorf("Got %d (server) and %d (client) peer certificates, expected %d", len(ss.PeerCertificates), len(cs.PeerCertificates), 1)
+ }
+
+ if len(ss.VerifiedChains) != 1 || len(cs.VerifiedChains) != 1 {
+ t.Errorf("Got %d (server) and %d (client) verified chains, expected %d", len(ss.VerifiedChains), len(cs.VerifiedChains), 1)
+ } else if len(ss.VerifiedChains[0]) != 2 || len(cs.VerifiedChains[0]) != 2 {
+ t.Errorf("Got %d (server) and %d (client) long verified chain, expected %d", len(ss.VerifiedChains[0]), len(cs.VerifiedChains[0]), 2)
+ }
+
+ if len(cs.SignedCertificateTimestamps) != 2 {
+ t.Errorf("Got %d SCTs, expected %d", len(cs.SignedCertificateTimestamps), 2)
+ }
+ if !bytes.Equal(cs.OCSPResponse, ocsp) {
+ t.Errorf("Got OCSPs %x, expected %x", cs.OCSPResponse, ocsp)
+ }
+ // Only TLS 1.3 supports OCSP and SCTs on client certs.
+ if v == VersionTLS13 {
+ if len(ss.SignedCertificateTimestamps) != 2 {
+ t.Errorf("Got %d client SCTs, expected %d", len(ss.SignedCertificateTimestamps), 2)
+ }
+ if !bytes.Equal(ss.OCSPResponse, ocsp) {
+ t.Errorf("Got client OCSPs %x, expected %x", ss.OCSPResponse, ocsp)
+ }
+ }
+
+ if v == VersionTLS13 {
+ if ss.TLSUnique != nil || cs.TLSUnique != nil {
+ t.Errorf("Got TLSUnique %x (server) and %x (client), expected nil in TLS 1.3", ss.TLSUnique, cs.TLSUnique)
+ }
+ } else {
+ if ss.TLSUnique == nil || cs.TLSUnique == nil {
+ t.Errorf("Got TLSUnique %x (server) and %x (client), expected non-nil", ss.TLSUnique, cs.TLSUnique)
+ }
+ }
+ })
+ }
+}
+
+// Issue 28744: Ensure that we don't modify memory
+// that Config doesn't own such as Certificates.
+func TestBuildNameToCertificate_doesntModifyCertificates(t *testing.T) {
+ c0 := Certificate{
+ Certificate: [][]byte{testRSACertificate},
+ PrivateKey: testRSAPrivateKey,
+ }
+ c1 := Certificate{
+ Certificate: [][]byte{testSNICertificate},
+ PrivateKey: testRSAPrivateKey,
+ }
+ config := testConfig.Clone()
+ config.Certificates = []Certificate{c0, c1}
+
+ config.BuildNameToCertificate()
+ got := config.Certificates
+ want := []Certificate{c0, c1}
+ if !reflect.DeepEqual(got, want) {
+ t.Fatalf("Certificates were mutated by BuildNameToCertificate\nGot: %#v\nWant: %#v\n", got, want)
+ }
+}
+
+func testingKey(s string) string { return strings.ReplaceAll(s, "TESTING KEY", "PRIVATE KEY") }
+
+func TestClientHelloInfo_SupportsCertificate(t *testing.T) {
+ rsaCert := &Certificate{
+ Certificate: [][]byte{testRSACertificate},
+ PrivateKey: testRSAPrivateKey,
+ }
+ pkcs1Cert := &Certificate{
+ Certificate: [][]byte{testRSACertificate},
+ PrivateKey: testRSAPrivateKey,
+ SupportedSignatureAlgorithms: []SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256},
+ }
+ ecdsaCert := &Certificate{
+ // ECDSA P-256 certificate
+ Certificate: [][]byte{testP256Certificate},
+ PrivateKey: testP256PrivateKey,
+ }
+ ed25519Cert := &Certificate{
+ Certificate: [][]byte{testEd25519Certificate},
+ PrivateKey: testEd25519PrivateKey,
+ }
+
+ tests := []struct {
+ c *Certificate
+ chi *ClientHelloInfo
+ wantErr string
+ }{
+ {rsaCert, &ClientHelloInfo{
+ ServerName: "example.golang",
+ SignatureSchemes: []SignatureScheme{PSSWithSHA256},
+ SupportedVersions: []uint16{VersionTLS13},
+ }, ""},
+ {ecdsaCert, &ClientHelloInfo{
+ SignatureSchemes: []SignatureScheme{PSSWithSHA256, ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+ }, ""},
+ {rsaCert, &ClientHelloInfo{
+ ServerName: "example.com",
+ SignatureSchemes: []SignatureScheme{PSSWithSHA256},
+ SupportedVersions: []uint16{VersionTLS13},
+ }, "not valid for requested server name"},
+ {ecdsaCert, &ClientHelloInfo{
+ SignatureSchemes: []SignatureScheme{ECDSAWithP384AndSHA384},
+ SupportedVersions: []uint16{VersionTLS13},
+ }, "signature algorithms"},
+ {pkcs1Cert, &ClientHelloInfo{
+ SignatureSchemes: []SignatureScheme{PSSWithSHA256, ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS13},
+ }, "signature algorithms"},
+
+ {rsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+ SignatureSchemes: []SignatureScheme{PKCS1WithSHA1},
+ SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+ }, "signature algorithms"},
+ {rsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+ SignatureSchemes: []SignatureScheme{PKCS1WithSHA1},
+ SupportedVersions: []uint16{VersionTLS13, VersionTLS12},
+ config: &Config{
+ MaxVersion: VersionTLS12,
+ },
+ }, ""}, // Check that mutual version selection works.
+
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, ""},
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP384AndSHA384},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, ""}, // TLS 1.2 does not restrict curves based on the SignatureScheme.
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: nil,
+ SupportedVersions: []uint16{VersionTLS12},
+ }, ""}, // TLS 1.2 comes with default signature schemes.
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, "cipher suite"},
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ config: &Config{
+ CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+ },
+ }, "cipher suite"},
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP384},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, "certificate curve"},
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{1},
+ SignatureSchemes: []SignatureScheme{ECDSAWithP256AndSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, "doesn't support ECDHE"},
+ {ecdsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{PSSWithSHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, "signature algorithms"},
+
+ {ed25519Cert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256}, // only relevant for ECDHE support
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{Ed25519},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, ""},
+ {ed25519Cert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{CurveP256}, // only relevant for ECDHE support
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{Ed25519},
+ SupportedVersions: []uint16{VersionTLS10},
+ }, "doesn't support Ed25519"},
+ {ed25519Cert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256},
+ SupportedCurves: []CurveID{},
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SignatureSchemes: []SignatureScheme{Ed25519},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, "doesn't support ECDHE"},
+
+ {rsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA},
+ SupportedCurves: []CurveID{CurveP256}, // only relevant for ECDHE support
+ SupportedPoints: []uint8{pointFormatUncompressed},
+ SupportedVersions: []uint16{VersionTLS10},
+ }, ""},
+ {rsaCert, &ClientHelloInfo{
+ CipherSuites: []uint16{TLS_RSA_WITH_AES_128_GCM_SHA256},
+ SupportedVersions: []uint16{VersionTLS12},
+ }, ""}, // static RSA fallback
+ }
+ for i, tt := range tests {
+ err := tt.chi.SupportsCertificate(tt.c)
+ switch {
+ case tt.wantErr == "" && err != nil:
+ t.Errorf("%d: unexpected error: %v", i, err)
+ case tt.wantErr != "" && err == nil:
+ t.Errorf("%d: unexpected success", i)
+ case tt.wantErr != "" && !strings.Contains(err.Error(), tt.wantErr):
+ t.Errorf("%d: got error %q, expected %q", i, err, tt.wantErr)
+ }
+ }
+}
+
+func TestCipherSuites(t *testing.T) {
+ var lastID uint16
+ for _, c := range CipherSuites() {
+ if lastID > c.ID {
+ t.Errorf("CipherSuites are not ordered by ID: got %#04x after %#04x", c.ID, lastID)
+ } else {
+ lastID = c.ID
+ }
+
+ if c.Insecure {
+ t.Errorf("%#04x: Insecure CipherSuite returned by CipherSuites()", c.ID)
+ }
+ }
+ lastID = 0
+ for _, c := range InsecureCipherSuites() {
+ if lastID > c.ID {
+ t.Errorf("InsecureCipherSuites are not ordered by ID: got %#04x after %#04x", c.ID, lastID)
+ } else {
+ lastID = c.ID
+ }
+
+ if !c.Insecure {
+ t.Errorf("%#04x: not Insecure CipherSuite returned by InsecureCipherSuites()", c.ID)
+ }
+ }
+
+ CipherSuiteByID := func(id uint16) *CipherSuite {
+ for _, c := range CipherSuites() {
+ if c.ID == id {
+ return c
+ }
+ }
+ for _, c := range InsecureCipherSuites() {
+ if c.ID == id {
+ return c
+ }
+ }
+ return nil
+ }
+
+ for _, c := range cipherSuites {
+ cc := CipherSuiteByID(c.id)
+ if cc == nil {
+ t.Errorf("%#04x: no CipherSuite entry", c.id)
+ continue
+ }
+
+ if tls12Only := c.flags&suiteTLS12 != 0; tls12Only && len(cc.SupportedVersions) != 1 {
+ t.Errorf("%#04x: suite is TLS 1.2 only, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+ } else if !tls12Only && len(cc.SupportedVersions) != 3 {
+ t.Errorf("%#04x: suite TLS 1.0-1.2, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+ }
+
+ if got := CipherSuiteName(c.id); got != cc.Name {
+ t.Errorf("%#04x: unexpected CipherSuiteName: got %q, expected %q", c.id, got, cc.Name)
+ }
+ }
+ for _, c := range cipherSuitesTLS13 {
+ cc := CipherSuiteByID(c.id)
+ if cc == nil {
+ t.Errorf("%#04x: no CipherSuite entry", c.id)
+ continue
+ }
+
+ if cc.Insecure {
+ t.Errorf("%#04x: Insecure %v, expected false", c.id, cc.Insecure)
+ }
+ if len(cc.SupportedVersions) != 1 || cc.SupportedVersions[0] != VersionTLS13 {
+ t.Errorf("%#04x: suite is TLS 1.3 only, but SupportedVersions is %v", c.id, cc.SupportedVersions)
+ }
+
+ if got := CipherSuiteName(c.id); got != cc.Name {
+ t.Errorf("%#04x: unexpected CipherSuiteName: got %q, expected %q", c.id, got, cc.Name)
+ }
+ }
+
+ if got := CipherSuiteName(0xabc); got != "0x0ABC" {
+ t.Errorf("unexpected fallback CipherSuiteName: got %q, expected 0x0ABC", got)
+ }
+
+ if len(cipherSuitesPreferenceOrder) != len(cipherSuites) {
+ t.Errorf("cipherSuitesPreferenceOrder is not the same size as cipherSuites")
+ }
+ if len(cipherSuitesPreferenceOrderNoAES) != len(cipherSuitesPreferenceOrder) {
+ t.Errorf("cipherSuitesPreferenceOrderNoAES is not the same size as cipherSuitesPreferenceOrder")
+ }
+
+ // Check that disabled suites are at the end of the preference lists, and
+ // that they are marked insecure.
+ for i, id := range disabledCipherSuites {
+ offset := len(cipherSuitesPreferenceOrder) - len(disabledCipherSuites)
+ if cipherSuitesPreferenceOrder[offset+i] != id {
+ t.Errorf("disabledCipherSuites[%d]: not at the end of cipherSuitesPreferenceOrder", i)
+ }
+ if cipherSuitesPreferenceOrderNoAES[offset+i] != id {
+ t.Errorf("disabledCipherSuites[%d]: not at the end of cipherSuitesPreferenceOrderNoAES", i)
+ }
+ c := CipherSuiteByID(id)
+ if c == nil {
+ t.Errorf("%#04x: no CipherSuite entry", id)
+ continue
+ }
+ if !c.Insecure {
+ t.Errorf("%#04x: disabled by default but not marked insecure", id)
+ }
+ }
+
+ for i, prefOrder := range [][]uint16{cipherSuitesPreferenceOrder, cipherSuitesPreferenceOrderNoAES} {
+ // Check that insecure and HTTP/2 bad cipher suites are at the end of
+ // the preference lists.
+ var sawInsecure, sawBad bool
+ for _, id := range prefOrder {
+ c := CipherSuiteByID(id)
+ if c == nil {
+ t.Errorf("%#04x: no CipherSuite entry", id)
+ continue
+ }
+
+ if c.Insecure {
+ sawInsecure = true
+ } else if sawInsecure {
+ t.Errorf("%#04x: secure suite after insecure one(s)", id)
+ }
+
+ if http2isBadCipher(id) {
+ sawBad = true
+ } else if sawBad {
+ t.Errorf("%#04x: non-bad suite after bad HTTP/2 one(s)", id)
+ }
+ }
+
+ // Check that the list is sorted according to the documented criteria.
+ isBetter := func(a, b int) bool {
+ aSuite, bSuite := cipherSuiteByID(prefOrder[a]), cipherSuiteByID(prefOrder[b])
+ aName, bName := CipherSuiteName(prefOrder[a]), CipherSuiteName(prefOrder[b])
+ // * < RC4
+ if !strings.Contains(aName, "RC4") && strings.Contains(bName, "RC4") {
+ return true
+ } else if strings.Contains(aName, "RC4") && !strings.Contains(bName, "RC4") {
+ return false
+ }
+ // * < CBC_SHA256
+ if !strings.Contains(aName, "CBC_SHA256") && strings.Contains(bName, "CBC_SHA256") {
+ return true
+ } else if strings.Contains(aName, "CBC_SHA256") && !strings.Contains(bName, "CBC_SHA256") {
+ return false
+ }
+ // * < 3DES
+ if !strings.Contains(aName, "3DES") && strings.Contains(bName, "3DES") {
+ return true
+ } else if strings.Contains(aName, "3DES") && !strings.Contains(bName, "3DES") {
+ return false
+ }
+ // ECDHE < *
+ if aSuite.flags&suiteECDHE != 0 && bSuite.flags&suiteECDHE == 0 {
+ return true
+ } else if aSuite.flags&suiteECDHE == 0 && bSuite.flags&suiteECDHE != 0 {
+ return false
+ }
+ // AEAD < CBC
+ if aSuite.aead != nil && bSuite.aead == nil {
+ return true
+ } else if aSuite.aead == nil && bSuite.aead != nil {
+ return false
+ }
+ // AES < ChaCha20
+ if strings.Contains(aName, "AES") && strings.Contains(bName, "CHACHA20") {
+ return i == 0 // true for cipherSuitesPreferenceOrder
+ } else if strings.Contains(aName, "CHACHA20") && strings.Contains(bName, "AES") {
+ return i != 0 // true for cipherSuitesPreferenceOrderNoAES
+ }
+ // AES-128 < AES-256
+ if strings.Contains(aName, "AES_128") && strings.Contains(bName, "AES_256") {
+ return true
+ } else if strings.Contains(aName, "AES_256") && strings.Contains(bName, "AES_128") {
+ return false
+ }
+ // ECDSA < RSA
+ if aSuite.flags&suiteECSign != 0 && bSuite.flags&suiteECSign == 0 {
+ return true
+ } else if aSuite.flags&suiteECSign == 0 && bSuite.flags&suiteECSign != 0 {
+ return false
+ }
+ t.Fatalf("two ciphersuites are equal by all criteria: %v and %v", aName, bName)
+ panic("unreachable")
+ }
+ if !sort.SliceIsSorted(prefOrder, isBetter) {
+ t.Error("preference order is not sorted according to the rules")
+ }
+ }
+}
+
+// http2isBadCipher is copied from net/http.
+// TODO: if it ends up exposed somewhere, use that instead.
+func http2isBadCipher(cipher uint16) bool {
+ switch cipher {
+ case TLS_RSA_WITH_RC4_128_SHA,
+ TLS_RSA_WITH_3DES_EDE_CBC_SHA,
+ TLS_RSA_WITH_AES_128_CBC_SHA,
+ TLS_RSA_WITH_AES_256_CBC_SHA,
+ TLS_RSA_WITH_AES_128_CBC_SHA256,
+ TLS_RSA_WITH_AES_128_GCM_SHA256,
+ TLS_RSA_WITH_AES_256_GCM_SHA384,
+ TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+ TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+ TLS_ECDHE_RSA_WITH_RC4_128_SHA,
+ TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
+ TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+ TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
+ TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256:
+ return true
+ default:
+ return false
+ }
+}
+
+type brokenSigner struct{ crypto.Signer }
+
+func (s brokenSigner) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) (signature []byte, err error) {
+ // Replace opts with opts.HashFunc(), so rsa.PSSOptions are discarded.
+ return s.Signer.Sign(rand, digest, opts.HashFunc())
+}
+
+// TestPKCS1OnlyCert uses a client certificate with a broken crypto.Signer that
+// always makes PKCS #1 v1.5 signatures, so can't be used with RSA-PSS.
+func TestPKCS1OnlyCert(t *testing.T) {
+ clientConfig := testConfig.Clone()
+ clientConfig.Certificates = []Certificate{{
+ Certificate: [][]byte{testRSACertificate},
+ PrivateKey: brokenSigner{testRSAPrivateKey},
+ }}
+ serverConfig := testConfig.Clone()
+ serverConfig.MaxVersion = VersionTLS12 // TLS 1.3 doesn't support PKCS #1 v1.5
+ serverConfig.ClientAuth = RequireAnyClientCert
+
+ // If RSA-PSS is selected, the handshake should fail.
+ if _, _, err := testHandshake(t, clientConfig, serverConfig); err == nil {
+ t.Fatal("expected broken certificate to cause connection to fail")
+ }
+
+ clientConfig.Certificates[0].SupportedSignatureAlgorithms =
+ []SignatureScheme{PKCS1WithSHA1, PKCS1WithSHA256}
+
+ // But if the certificate restricts supported algorithms, RSA-PSS should not
+ // be selected, and the handshake should succeed.
+ if _, _, err := testHandshake(t, clientConfig, serverConfig); err != nil {
+ t.Error(err)
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 21:09:29 +0000