595 lines
14 KiB
Go
595 lines
14 KiB
Go
package tlsutil
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import (
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"crypto/tls"
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"crypto/x509"
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"io"
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"io/ioutil"
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"net"
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"reflect"
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"strings"
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"testing"
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"github.com/hashicorp/yamux"
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"github.com/stretchr/testify/require"
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)
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func TestConfig_AppendCA_None(t *testing.T) {
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conf := &Config{}
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pool := x509.NewCertPool()
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err := conf.AppendCA(pool)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(pool.Subjects()) != 0 {
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t.Fatalf("bad: %v", pool.Subjects())
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}
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}
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func TestConfig_CACertificate_Valid(t *testing.T) {
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conf := &Config{
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CAFile: "../test/ca/root.cer",
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}
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pool := x509.NewCertPool()
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err := conf.AppendCA(pool)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(pool.Subjects()) == 0 {
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t.Fatalf("expected cert")
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}
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}
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func TestConfig_CAPath_Valid(t *testing.T) {
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conf := &Config{
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CAPath: "../test/ca_path",
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}
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tlsConf, err := conf.IncomingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(tlsConf.ClientCAs.Subjects()) != 2 {
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t.Fatalf("expected certs")
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}
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}
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func TestConfig_KeyPair_None(t *testing.T) {
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conf := &Config{}
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cert, err := conf.KeyPair()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if cert != nil {
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t.Fatalf("bad: %v", cert)
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}
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}
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func TestConfig_KeyPair_Valid(t *testing.T) {
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conf := &Config{
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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}
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cert, err := conf.KeyPair()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if cert == nil {
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t.Fatalf("expected cert")
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}
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}
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func TestConfig_OutgoingTLS_MissingCA(t *testing.T) {
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conf := &Config{
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VerifyOutgoing: true,
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}
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tls, err := conf.OutgoingTLSConfig()
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if err == nil {
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t.Fatalf("expected err")
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}
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if tls != nil {
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t.Fatalf("bad: %v", tls)
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}
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}
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func TestConfig_OutgoingTLS_OnlyCA(t *testing.T) {
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conf := &Config{
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CAFile: "../test/ca/root.cer",
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls != nil {
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t.Fatalf("expected no config")
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}
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}
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func TestConfig_OutgoingTLS_VerifyOutgoing(t *testing.T) {
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conf := &Config{
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VerifyOutgoing: true,
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CAFile: "../test/ca/root.cer",
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if len(tls.RootCAs.Subjects()) != 1 {
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t.Fatalf("expect root cert")
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}
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if tls.ServerName != "" {
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t.Fatalf("expect no server name verification")
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}
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if !tls.InsecureSkipVerify {
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t.Fatalf("should skip built-in verification")
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}
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}
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func TestConfig_SkipBuiltinVerify(t *testing.T) {
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type variant struct {
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config Config
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result bool
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}
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table := []variant{
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variant{Config{ServerName: "", VerifyServerHostname: true}, false},
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variant{Config{ServerName: "", VerifyServerHostname: false}, true},
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variant{Config{ServerName: "consul", VerifyServerHostname: true}, false},
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variant{Config{ServerName: "consul", VerifyServerHostname: false}, false},
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}
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for _, v := range table {
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require.Equal(t, v.result, v.config.skipBuiltinVerify())
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}
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}
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func TestConfig_OutgoingTLS_ServerName(t *testing.T) {
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conf := &Config{
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VerifyOutgoing: true,
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CAFile: "../test/ca/root.cer",
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ServerName: "consul.example.com",
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if len(tls.RootCAs.Subjects()) != 1 {
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t.Fatalf("expect root cert")
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}
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if tls.ServerName != "consul.example.com" {
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t.Fatalf("expect server name")
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}
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if tls.InsecureSkipVerify {
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t.Fatalf("should not skip built-in verification")
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}
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}
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func TestConfig_OutgoingTLS_VerifyHostname(t *testing.T) {
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conf := &Config{
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VerifyOutgoing: true,
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VerifyServerHostname: true,
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CAFile: "../test/ca/root.cer",
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if len(tls.RootCAs.Subjects()) != 1 {
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t.Fatalf("expect root cert")
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}
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if tls.InsecureSkipVerify {
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t.Fatalf("should not skip built-in verification")
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}
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}
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func TestConfig_OutgoingTLS_WithKeyPair(t *testing.T) {
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conf := &Config{
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VerifyOutgoing: true,
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CAFile: "../test/ca/root.cer",
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if len(tls.RootCAs.Subjects()) != 1 {
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t.Fatalf("expect root cert")
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}
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if !tls.InsecureSkipVerify {
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t.Fatalf("should skip verification")
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}
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if len(tls.Certificates) != 1 {
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t.Fatalf("expected client cert")
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}
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}
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func TestConfig_OutgoingTLS_TLSMinVersion(t *testing.T) {
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tlsVersions := []string{"tls10", "tls11", "tls12"}
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for _, version := range tlsVersions {
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conf := &Config{
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VerifyOutgoing: true,
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CAFile: "../test/ca/root.cer",
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TLSMinVersion: version,
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}
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tls, err := conf.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if tls.MinVersion != TLSLookup[version] {
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t.Fatalf("expected tls min version: %v, %v", tls.MinVersion, TLSLookup[version])
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}
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}
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}
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func startTLSServer(config *Config) (net.Conn, chan error) {
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errc := make(chan error, 1)
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tlsConfigServer, err := config.IncomingTLSConfig()
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if err != nil {
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errc <- err
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return nil, errc
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}
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client, server := net.Pipe()
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// Use yamux to buffer the reads, otherwise it's easy to deadlock
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muxConf := yamux.DefaultConfig()
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serverSession, _ := yamux.Server(server, muxConf)
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clientSession, _ := yamux.Client(client, muxConf)
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clientConn, _ := clientSession.Open()
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serverConn, _ := serverSession.Accept()
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go func() {
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tlsServer := tls.Server(serverConn, tlsConfigServer)
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if err := tlsServer.Handshake(); err != nil {
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errc <- err
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}
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close(errc)
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// Because net.Pipe() is unbuffered, if both sides
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// Close() simultaneously, we will deadlock as they
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// both send an alert and then block. So we make the
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// server read any data from the client until error or
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// EOF, which will allow the client to Close(), and
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// *then* we Close() the server.
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io.Copy(ioutil.Discard, tlsServer)
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tlsServer.Close()
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}()
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return clientConn, errc
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}
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func TestConfig_outgoingWrapper_OK(t *testing.T) {
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config := &Config{
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CAFile: "../test/hostname/CertAuth.crt",
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CertFile: "../test/hostname/Alice.crt",
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KeyFile: "../test/hostname/Alice.key",
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VerifyServerHostname: true,
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VerifyOutgoing: true,
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Domain: "consul",
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}
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client, errc := startTLSServer(config)
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if client == nil {
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t.Fatalf("startTLSServer err: %v", <-errc)
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}
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wrap, err := config.OutgoingTLSWrapper()
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if err != nil {
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t.Fatalf("OutgoingTLSWrapper err: %v", err)
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}
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tlsClient, err := wrap("dc1", client)
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if err != nil {
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t.Fatalf("wrapTLS err: %v", err)
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}
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defer tlsClient.Close()
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if err := tlsClient.(*tls.Conn).Handshake(); err != nil {
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t.Fatalf("write err: %v", err)
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}
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err = <-errc
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if err != nil {
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t.Fatalf("server: %v", err)
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}
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}
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func TestConfig_outgoingWrapper_BadDC(t *testing.T) {
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config := &Config{
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CAFile: "../test/hostname/CertAuth.crt",
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CertFile: "../test/hostname/Alice.crt",
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KeyFile: "../test/hostname/Alice.key",
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VerifyServerHostname: true,
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VerifyOutgoing: true,
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Domain: "consul",
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}
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client, errc := startTLSServer(config)
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if client == nil {
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t.Fatalf("startTLSServer err: %v", <-errc)
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}
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wrap, err := config.OutgoingTLSWrapper()
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if err != nil {
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t.Fatalf("OutgoingTLSWrapper err: %v", err)
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}
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tlsClient, err := wrap("dc2", client)
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if err != nil {
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t.Fatalf("wrapTLS err: %v", err)
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}
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err = tlsClient.(*tls.Conn).Handshake()
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if _, ok := err.(x509.HostnameError); !ok {
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t.Fatalf("should get hostname err: %v", err)
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}
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tlsClient.Close()
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<-errc
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}
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func TestConfig_outgoingWrapper_BadCert(t *testing.T) {
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config := &Config{
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CAFile: "../test/ca/root.cer",
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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VerifyServerHostname: true,
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VerifyOutgoing: true,
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Domain: "consul",
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}
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client, errc := startTLSServer(config)
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if client == nil {
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t.Fatalf("startTLSServer err: %v", <-errc)
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}
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wrap, err := config.OutgoingTLSWrapper()
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if err != nil {
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t.Fatalf("OutgoingTLSWrapper err: %v", err)
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}
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tlsClient, err := wrap("dc1", client)
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if err != nil {
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t.Fatalf("wrapTLS err: %v", err)
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}
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err = tlsClient.(*tls.Conn).Handshake()
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if _, ok := err.(x509.HostnameError); !ok {
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t.Fatalf("should get hostname err: %v", err)
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}
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tlsClient.Close()
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<-errc
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}
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func TestConfig_wrapTLS_OK(t *testing.T) {
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config := &Config{
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CAFile: "../test/ca/root.cer",
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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VerifyOutgoing: true,
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}
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client, errc := startTLSServer(config)
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if client == nil {
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t.Fatalf("startTLSServer err: %v", <-errc)
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}
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clientConfig, err := config.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("OutgoingTLSConfig err: %v", err)
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}
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tlsClient, err := config.wrapTLSClient(client, clientConfig)
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if err != nil {
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t.Fatalf("wrapTLS err: %v", err)
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} else {
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tlsClient.Close()
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}
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err = <-errc
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if err != nil {
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t.Fatalf("server: %v", err)
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}
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}
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func TestConfig_wrapTLS_BadCert(t *testing.T) {
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serverConfig := &Config{
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CertFile: "../test/key/ssl-cert-snakeoil.pem",
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KeyFile: "../test/key/ssl-cert-snakeoil.key",
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}
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client, errc := startTLSServer(serverConfig)
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if client == nil {
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t.Fatalf("startTLSServer err: %v", <-errc)
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}
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clientConfig := &Config{
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CAFile: "../test/ca/root.cer",
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VerifyOutgoing: true,
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}
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clientTLSConfig, err := clientConfig.OutgoingTLSConfig()
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if err != nil {
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t.Fatalf("OutgoingTLSConfig err: %v", err)
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}
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tlsClient, err := clientConfig.wrapTLSClient(client, clientTLSConfig)
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if err == nil {
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t.Fatalf("wrapTLS no err")
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}
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if tlsClient != nil {
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t.Fatalf("returned a client")
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}
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err = <-errc
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if err != nil {
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t.Fatalf("server: %v", err)
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}
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}
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func TestConfig_IncomingTLS(t *testing.T) {
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conf := &Config{
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VerifyIncoming: true,
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CAFile: "../test/ca/root.cer",
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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}
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tlsC, err := conf.IncomingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tlsC == nil {
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t.Fatalf("expected config")
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}
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if len(tlsC.ClientCAs.Subjects()) != 1 {
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t.Fatalf("expect client cert")
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}
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if tlsC.ClientAuth != tls.RequireAndVerifyClientCert {
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t.Fatalf("should not skip verification")
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}
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if len(tlsC.Certificates) != 1 {
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t.Fatalf("expected client cert")
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}
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}
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func TestConfig_IncomingTLS_MissingCA(t *testing.T) {
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conf := &Config{
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VerifyIncoming: true,
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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}
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_, err := conf.IncomingTLSConfig()
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if err == nil {
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t.Fatalf("expected err")
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}
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}
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func TestConfig_IncomingTLS_MissingKey(t *testing.T) {
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conf := &Config{
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VerifyIncoming: true,
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CAFile: "../test/ca/root.cer",
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}
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_, err := conf.IncomingTLSConfig()
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if err == nil {
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t.Fatalf("expected err")
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}
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}
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func TestConfig_IncomingTLS_NoVerify(t *testing.T) {
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conf := &Config{}
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tlsC, err := conf.IncomingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tlsC == nil {
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t.Fatalf("expected config")
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}
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if len(tlsC.ClientCAs.Subjects()) != 0 {
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t.Fatalf("do not expect client cert")
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}
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if tlsC.ClientAuth != tls.NoClientCert {
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t.Fatalf("should skip verification")
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}
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if len(tlsC.Certificates) != 0 {
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t.Fatalf("unexpected client cert")
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}
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}
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func TestConfig_IncomingTLS_TLSMinVersion(t *testing.T) {
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tlsVersions := []string{"tls10", "tls11", "tls12"}
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for _, version := range tlsVersions {
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conf := &Config{
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VerifyIncoming: true,
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CAFile: "../test/ca/root.cer",
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CertFile: "../test/key/ourdomain.cer",
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KeyFile: "../test/key/ourdomain.key",
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TLSMinVersion: version,
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}
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tls, err := conf.IncomingTLSConfig()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if tls == nil {
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t.Fatalf("expected config")
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}
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if tls.MinVersion != TLSLookup[version] {
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t.Fatalf("expected tls min version: %v, %v", tls.MinVersion, TLSLookup[version])
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}
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}
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}
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func TestConfig_ParseCiphers(t *testing.T) {
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testOk := strings.Join([]string{
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"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
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"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
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"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
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"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
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"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
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"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
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"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
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"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
|
|
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
|
|
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
|
|
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
|
|
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
|
|
"TLS_RSA_WITH_AES_128_GCM_SHA256",
|
|
"TLS_RSA_WITH_AES_256_GCM_SHA384",
|
|
"TLS_RSA_WITH_AES_128_CBC_SHA256",
|
|
"TLS_RSA_WITH_AES_128_CBC_SHA",
|
|
"TLS_RSA_WITH_AES_256_CBC_SHA",
|
|
"TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
|
|
"TLS_RSA_WITH_3DES_EDE_CBC_SHA",
|
|
"TLS_RSA_WITH_RC4_128_SHA",
|
|
"TLS_ECDHE_RSA_WITH_RC4_128_SHA",
|
|
"TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
|
|
}, ",")
|
|
ciphers := []uint16{
|
|
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
|
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
|
|
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
|
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
|
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
|
|
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
|
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
|
|
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
|
|
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
|
|
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
|
|
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
|
|
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
|
|
tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
|
|
tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
|
|
tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
|
|
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
|
|
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
|
|
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
|
|
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
|
|
tls.TLS_RSA_WITH_RC4_128_SHA,
|
|
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
|
|
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
|
|
}
|
|
v, err := ParseCiphers(testOk)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := v, ciphers; !reflect.DeepEqual(got, want) {
|
|
t.Fatalf("got ciphers %#v want %#v", got, want)
|
|
}
|
|
|
|
testBad := "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,cipherX"
|
|
if _, err := ParseCiphers(testBad); err == nil {
|
|
t.Fatal("should fail on unsupported cipherX")
|
|
}
|
|
}
|