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consul/tlsutil/config_test.go

1278 lines
36 KiB

package tlsutil
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io"
"io/ioutil"
"net"
"reflect"
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/yamux"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/sdk/testutil"
)
func startRPCTLSServer(config *Config) (net.Conn, chan error) {
return startTLSServer(config, nil, false)
}
func startALPNRPCTLSServer(config *Config, alpnProtos []string) (net.Conn, chan error) {
return startTLSServer(config, alpnProtos, true)
}
func startTLSServer(config *Config, alpnProtos []string, doAlpnVariant bool) (net.Conn, chan error) {
errc := make(chan error, 1)
c, err := NewConfigurator(*config, nil)
if err != nil {
errc <- err
return nil, errc
}
var tlsConfigServer *tls.Config
if doAlpnVariant {
tlsConfigServer = c.IncomingALPNRPCConfig(alpnProtos)
} else {
tlsConfigServer = c.IncomingRPCConfig()
}
client, server := net.Pipe()
// Use yamux to buffer the reads, otherwise it's easy to deadlock
muxConf := yamux.DefaultConfig()
serverSession, _ := yamux.Server(server, muxConf)
clientSession, _ := yamux.Client(client, muxConf)
clientConn, _ := clientSession.Open()
serverConn, _ := serverSession.Accept()
go func() {
tlsServer := tls.Server(serverConn, tlsConfigServer)
if err := tlsServer.Handshake(); err != nil {
errc <- err
}
close(errc)
// Because net.Pipe() is unbuffered, if both sides
// Close() simultaneously, we will deadlock as they
// both send an alert and then block. So we make the
// server read any data from the client until error or
// EOF, which will allow the client to Close(), and
// *then* we Close() the server.
io.Copy(ioutil.Discard, tlsServer)
tlsServer.Close()
}()
return clientConn, errc
}
func TestConfigurator_outgoingWrapper_OK(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Alice.crt",
KeyFile: "../test/hostname/Alice.key",
VerifyServerHostname: true,
VerifyOutgoing: true,
Domain: "consul",
}
client, errc := startRPCTLSServer(&config)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingRPCWrapper()
require.NotNil(t, wrap)
tlsClient, err := wrap("dc1", client)
require.NoError(t, err)
defer tlsClient.Close()
err = tlsClient.(*tls.Conn).Handshake()
require.NoError(t, err)
err = <-errc
require.NoError(t, err)
}
func TestConfigurator_outgoingWrapper_noverify_OK(t *testing.T) {
config := Config{
VerifyOutgoing: true,
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Alice.crt",
KeyFile: "../test/hostname/Alice.key",
Domain: "consul",
}
client, errc := startRPCTLSServer(&config)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingRPCWrapper()
require.NotNil(t, wrap)
tlsClient, err := wrap("dc1", client)
require.NoError(t, err)
defer tlsClient.Close()
err = tlsClient.(*tls.Conn).Handshake()
require.NoError(t, err)
err = <-errc
require.NoError(t, err)
}
func TestConfigurator_outgoingWrapper_BadDC(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Alice.crt",
KeyFile: "../test/hostname/Alice.key",
VerifyServerHostname: true,
VerifyOutgoing: true,
Domain: "consul",
}
client, errc := startRPCTLSServer(&config)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingRPCWrapper()
tlsClient, err := wrap("dc2", client)
require.NoError(t, err)
err = tlsClient.(*tls.Conn).Handshake()
_, ok := err.(x509.HostnameError)
require.True(t, ok)
tlsClient.Close()
<-errc
}
func TestConfigurator_outgoingWrapper_BadCert(t *testing.T) {
config := Config{
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
VerifyServerHostname: true,
VerifyOutgoing: true,
Domain: "consul",
}
client, errc := startRPCTLSServer(&config)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingRPCWrapper()
tlsClient, err := wrap("dc1", client)
require.NoError(t, err)
err = tlsClient.(*tls.Conn).Handshake()
if _, ok := err.(x509.HostnameError); !ok {
t.Fatalf("should get hostname err: %v", err)
}
tlsClient.Close()
<-errc
}
func TestConfigurator_outgoingWrapperALPN_OK(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Bob.crt",
KeyFile: "../test/hostname/Bob.key",
VerifyServerHostname: false, // doesn't matter
VerifyOutgoing: false, // doesn't matter
Domain: "consul",
}
client, errc := startALPNRPCTLSServer(&config, []string{"foo", "bar"})
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingALPNRPCWrapper()
require.NotNil(t, wrap)
tlsClient, err := wrap("dc1", "bob", "foo", client)
require.NoError(t, err)
defer tlsClient.Close()
tlsConn := tlsClient.(*tls.Conn)
cs := tlsConn.ConnectionState()
require.Equal(t, "foo", cs.NegotiatedProtocol)
err = <-errc
require.NoError(t, err)
}
func TestConfigurator_outgoingWrapperALPN_serverHasNoNodeNameInSAN(t *testing.T) {
srvConfig := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Alice.crt",
KeyFile: "../test/hostname/Alice.key",
VerifyServerHostname: false, // doesn't matter
VerifyOutgoing: false, // doesn't matter
Domain: "consul",
}
client, errc := startALPNRPCTLSServer(&srvConfig, []string{"foo", "bar"})
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Bob.crt",
KeyFile: "../test/hostname/Bob.key",
VerifyServerHostname: false, // doesn't matter
VerifyOutgoing: false, // doesn't matter
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingALPNRPCWrapper()
require.NotNil(t, wrap)
_, err = wrap("dc1", "bob", "foo", client)
require.Error(t, err)
_, ok := err.(x509.HostnameError)
require.True(t, ok)
client.Close()
<-errc
}
func TestConfigurator_outgoingWrapperALPN_BadDC(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Bob.crt",
KeyFile: "../test/hostname/Bob.key",
VerifyServerHostname: false, // doesn't matter
VerifyOutgoing: false, // doesn't matter
Domain: "consul",
}
client, errc := startALPNRPCTLSServer(&config, []string{"foo", "bar"})
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingALPNRPCWrapper()
_, err = wrap("dc2", "bob", "foo", client)
require.Error(t, err)
_, ok := err.(x509.HostnameError)
require.True(t, ok)
client.Close()
<-errc
}
func TestConfigurator_outgoingWrapperALPN_BadCert(t *testing.T) {
config := Config{
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
VerifyServerHostname: false, // doesn't matter
VerifyOutgoing: false, // doesn't matter
Domain: "consul",
}
client, errc := startALPNRPCTLSServer(&config, []string{"foo", "bar"})
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
wrap := c.OutgoingALPNRPCWrapper()
_, err = wrap("dc1", "bob", "foo", client)
require.Error(t, err)
_, ok := err.(x509.HostnameError)
require.True(t, ok)
client.Close()
<-errc
}
func TestConfigurator_wrapTLS_OK(t *testing.T) {
config := Config{
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
VerifyOutgoing: true,
}
client, errc := startRPCTLSServer(&config)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
tlsClient, err := c.wrapTLSClient("dc1", client)
require.NoError(t, err)
tlsClient.Close()
err = <-errc
require.NoError(t, err)
}
func TestConfigurator_wrapTLS_BadCert(t *testing.T) {
serverConfig := &Config{
CertFile: "../test/key/ssl-cert-snakeoil.pem",
KeyFile: "../test/key/ssl-cert-snakeoil.key",
}
client, errc := startRPCTLSServer(serverConfig)
if client == nil {
t.Fatalf("startTLSServer err: %v", <-errc)
}
clientConfig := Config{
CAFile: "../test/ca/root.cer",
VerifyOutgoing: true,
}
c, err := NewConfigurator(clientConfig, nil)
require.NoError(t, err)
tlsClient, err := c.wrapTLSClient("dc1", client)
require.Error(t, err)
require.Nil(t, tlsClient)
err = <-errc
require.NoError(t, err)
}
func TestConfig_ParseCiphers(t *testing.T) {
testOk := strings.Join([]string{
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
"TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
}, ",")
ciphers := []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
}
v, err := ParseCiphers(testOk)
require.NoError(t, err)
if got, want := v, ciphers; !reflect.DeepEqual(got, want) {
t.Fatalf("got ciphers %#v want %#v", got, want)
}
_, err = ParseCiphers("TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,cipherX")
require.Error(t, err)
v, err = ParseCiphers("")
require.NoError(t, err)
require.Equal(t, []uint16{}, v)
}
func TestLoadKeyPair(t *testing.T) {
type variant struct {
cert, key string
shoulderr bool
isnil bool
}
variants := []variant{
{"", "", false, true},
{"bogus", "", false, true},
{"", "bogus", false, true},
{"../test/key/ourdomain.cer", "", false, true},
{"", "../test/key/ourdomain.key", false, true},
{"bogus", "bogus", true, true},
{"../test/key/ourdomain.cer", "../test/key/ourdomain.key",
false, false},
}
for i, v := range variants {
t.Run(fmt.Sprintf("case %d", i), func(t *testing.T) {
cert, err := loadKeyPair(v.cert, v.key)
if v.shoulderr {
require.Error(t, err)
} else {
require.NoError(t, err)
}
if v.isnil {
require.Nil(t, cert)
} else {
require.NotNil(t, cert)
}
})
}
}
func TestConfig_SpecifyDC(t *testing.T) {
require.Nil(t, SpecificDC("", nil))
dcwrap := func(dc string, conn net.Conn) (net.Conn, error) { return nil, nil }
wrap := SpecificDC("", dcwrap)
require.NotNil(t, wrap)
conn, err := wrap(nil)
require.NoError(t, err)
require.Nil(t, conn)
}
func TestConfigurator_NewConfigurator(t *testing.T) {
logger := testutil.Logger(t)
c, err := NewConfigurator(Config{}, logger)
require.NoError(t, err)
require.NotNil(t, c)
c, err = NewConfigurator(Config{VerifyOutgoing: true}, nil)
require.Error(t, err)
require.Nil(t, c)
}
func TestConfigurator_ErrorPropagation(t *testing.T) {
type variant struct {
config Config
shouldErr bool
excludeCheck bool
}
cafile := "../test/ca/root.cer"
capath := "../test/ca_path"
certfile := "../test/key/ourdomain.cer"
keyfile := "../test/key/ourdomain.key"
variants := []variant{
{Config{}, false, false}, // 1
{Config{TLSMinVersion: "tls9"}, true, false}, // 1
{Config{TLSMinVersion: ""}, false, false}, // 2
{Config{VerifyOutgoing: true, CAFile: "", CAPath: ""}, true, false}, // 6
{Config{VerifyOutgoing: false, CAFile: "", CAPath: ""}, false, false}, // 7
{Config{VerifyOutgoing: false, CAFile: cafile, CAPath: ""},
false, false}, // 8
{Config{VerifyOutgoing: false, CAFile: "", CAPath: capath},
false, false}, // 9
{Config{VerifyOutgoing: false, CAFile: cafile, CAPath: capath},
false, false}, // 10
{Config{VerifyOutgoing: true, CAFile: cafile, CAPath: ""},
false, false}, // 11
{Config{VerifyOutgoing: true, CAFile: "", CAPath: capath},
false, false}, // 12
{Config{VerifyOutgoing: true, CAFile: cafile, CAPath: capath},
false, false}, // 13
{Config{VerifyIncoming: true, CAFile: "", CAPath: ""}, true, false}, // 14
{Config{VerifyIncomingRPC: true, CAFile: "", CAPath: ""},
true, false}, // 15
{Config{VerifyIncomingHTTPS: true, CAFile: "", CAPath: ""},
true, false}, // 16
{Config{VerifyIncoming: true, CAFile: cafile, CAPath: ""}, true, false}, // 17
{Config{VerifyIncoming: true, CAFile: "", CAPath: capath}, true, false}, // 18
{Config{VerifyIncoming: true, CAFile: "", CAPath: capath,
CertFile: certfile, KeyFile: keyfile}, false, false}, // 19
{Config{CertFile: "bogus", KeyFile: "bogus"}, true, true}, // 20
{Config{CAFile: "bogus"}, true, true}, // 21
{Config{CAPath: "bogus"}, true, true}, // 22
{Config{VerifyIncoming: true, CAFile: cafile, AutoTLS: true}, false, false}, // 22
}
for _, v := range tlsVersions() {
variants = append(variants, variant{Config{TLSMinVersion: v}, false, false})
}
c := Configurator{}
for i, v := range variants {
info := fmt.Sprintf("case %d, config: %+v", i, v.config)
_, err1 := NewConfigurator(v.config, nil)
err2 := c.Update(v.config)
var err3 error
if !v.excludeCheck {
cert, err := loadKeyPair(v.config.CertFile, v.config.KeyFile)
require.NoError(t, err, info)
pems, err := LoadCAs(v.config.CAFile, v.config.CAPath)
require.NoError(t, err, info)
pool, err := newX509CertPool(pems)
require.NoError(t, err, info)
err3 = validateConfig(v.config, pool, cert)
}
if v.shouldErr {
require.Error(t, err1, info)
require.Error(t, err2, info)
if !v.excludeCheck {
require.Error(t, err3, info)
}
} else {
require.NoError(t, err1, info)
require.NoError(t, err2, info)
if !v.excludeCheck {
require.NoError(t, err3, info)
}
}
}
}
func TestConfigurator_CommonTLSConfigServerNameNodeName(t *testing.T) {
type variant struct {
config Config
result string
}
variants := []variant{
{config: Config{NodeName: "node", ServerName: "server"},
result: "server"},
{config: Config{ServerName: "server"},
result: "server"},
{config: Config{NodeName: "node"},
result: "node"},
}
for _, v := range variants {
c, err := NewConfigurator(v.config, nil)
require.NoError(t, err)
tlsConf := c.commonTLSConfig(false)
require.Empty(t, tlsConf.ServerName)
}
}
func TestConfigurator_LoadCAs(t *testing.T) {
type variant struct {
cafile, capath string
shouldErr bool
isNil bool
count int
}
variants := []variant{
{"", "", false, true, 0},
{"bogus", "", true, true, 0},
{"", "bogus", true, true, 0},
{"", "../test/bin", true, true, 0},
{"../test/ca/root.cer", "", false, false, 1},
{"", "../test/ca_path", false, false, 2},
{"../test/ca/root.cer", "../test/ca_path", false, false, 1},
}
for i, v := range variants {
pems, err1 := LoadCAs(v.cafile, v.capath)
pool, err2 := newX509CertPool(pems)
info := fmt.Sprintf("case %d", i)
if v.shouldErr {
if err1 == nil && err2 == nil {
t.Fatal("An error is expected but got nil.")
}
} else {
require.NoError(t, err1, info)
require.NoError(t, err2, info)
}
if v.isNil {
require.Nil(t, pool, info)
} else {
require.NotEmpty(t, pems, info)
require.NotNil(t, pool, info)
require.Len(t, pool.Subjects(), v.count, info)
require.Len(t, pems, v.count, info)
}
}
}
func TestConfigurator_CommonTLSConfigInsecureSkipVerify(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
tlsConf := c.commonTLSConfig(false)
require.True(t, tlsConf.InsecureSkipVerify)
require.NoError(t, c.Update(Config{VerifyServerHostname: false}))
tlsConf = c.commonTLSConfig(false)
require.True(t, tlsConf.InsecureSkipVerify)
require.NoError(t, c.Update(Config{VerifyServerHostname: true}))
tlsConf = c.commonTLSConfig(false)
require.False(t, tlsConf.InsecureSkipVerify)
}
func TestConfigurator_CommonTLSConfigPreferServerCipherSuites(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
tlsConf := c.commonTLSConfig(false)
require.False(t, tlsConf.PreferServerCipherSuites)
require.NoError(t, c.Update(Config{PreferServerCipherSuites: false}))
tlsConf = c.commonTLSConfig(false)
require.False(t, tlsConf.PreferServerCipherSuites)
require.NoError(t, c.Update(Config{PreferServerCipherSuites: true}))
tlsConf = c.commonTLSConfig(false)
require.True(t, tlsConf.PreferServerCipherSuites)
}
func TestConfigurator_CommonTLSConfigCipherSuites(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
tlsConf := c.commonTLSConfig(false)
require.Empty(t, tlsConf.CipherSuites)
conf := Config{CipherSuites: []uint16{
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305}}
require.NoError(t, c.Update(conf))
tlsConf = c.commonTLSConfig(false)
require.Equal(t, conf.CipherSuites, tlsConf.CipherSuites)
}
func TestConfigurator_CommonTLSConfigGetClientCertificate(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
cert, err := c.commonTLSConfig(false).GetClientCertificate(nil)
require.NoError(t, err)
require.NotNil(t, cert)
require.Empty(t, cert.Certificate)
c1, err := loadKeyPair("../test/key/something_expired.cer", "../test/key/something_expired.key")
require.NoError(t, err)
c.manual.cert = c1
cert, err = c.commonTLSConfig(false).GetClientCertificate(nil)
require.NoError(t, err)
require.Equal(t, c.manual.cert, cert)
c2, err := loadKeyPair("../test/key/ourdomain.cer", "../test/key/ourdomain.key")
require.NoError(t, err)
c.autoTLS.cert = c2
cert, err = c.commonTLSConfig(false).GetClientCertificate(nil)
require.NoError(t, err)
require.Equal(t, c.autoTLS.cert, cert)
}
func TestConfigurator_CommonTLSConfigGetCertificate(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
cert, err := c.commonTLSConfig(false).GetCertificate(nil)
require.NoError(t, err)
require.Nil(t, cert)
// Setting a certificate as the auto-encrypt cert will return it as the regular server certificate
c1, err := loadKeyPair("../test/key/something_expired.cer", "../test/key/something_expired.key")
require.NoError(t, err)
c.autoTLS.cert = c1
cert, err = c.commonTLSConfig(false).GetCertificate(nil)
require.NoError(t, err)
require.Equal(t, c.autoTLS.cert, cert)
// Setting a different certificate as a manual cert will override the auto-encrypt cert and instead return the manual cert
c2, err := loadKeyPair("../test/key/ourdomain.cer", "../test/key/ourdomain.key")
require.NoError(t, err)
c.manual.cert = c2
cert, err = c.commonTLSConfig(false).GetCertificate(nil)
require.NoError(t, err)
require.Equal(t, c.manual.cert, cert)
}
func TestConfigurator_CommonTLSConfigCAs(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
require.Nil(t, c.commonTLSConfig(false).ClientCAs)
require.Nil(t, c.commonTLSConfig(false).RootCAs)
c.caPool = &x509.CertPool{}
require.Equal(t, c.caPool, c.commonTLSConfig(false).ClientCAs)
require.Equal(t, c.caPool, c.commonTLSConfig(false).RootCAs)
}
func TestConfigurator_CommonTLSConfigTLSMinVersion(t *testing.T) {
c, err := NewConfigurator(Config{TLSMinVersion: ""}, nil)
require.NoError(t, err)
require.Equal(t, c.commonTLSConfig(false).MinVersion, tlsLookup["tls10"])
for _, version := range tlsVersions() {
require.NoError(t, c.Update(Config{TLSMinVersion: version}))
require.Equal(t, c.commonTLSConfig(false).MinVersion,
tlsLookup[version])
}
require.Error(t, c.Update(Config{TLSMinVersion: "tlsBOGUS"}))
}
func TestConfigurator_CommonTLSConfigVerifyIncoming(t *testing.T) {
c := Configurator{base: &Config{}}
type variant struct {
verify bool
expected tls.ClientAuthType
}
variants := []variant{
{true, tls.RequireAndVerifyClientCert},
{false, tls.NoClientCert},
}
for _, v := range variants {
require.Equal(t, v.expected, c.commonTLSConfig(v.verify).ClientAuth)
}
}
func TestConfigurator_OutgoingRPCTLSDisabled(t *testing.T) {
c := Configurator{base: &Config{}}
type variant struct {
verify bool
autoEncryptTLS bool
pool *x509.CertPool
expected bool
}
variants := []variant{
{false, false, nil, false},
{true, false, nil, true},
{false, true, nil, true},
{true, true, nil, true},
{true, false, &x509.CertPool{}, true},
{false, true, &x509.CertPool{}, true},
{true, true, &x509.CertPool{}, true},
}
for i, v := range variants {
info := fmt.Sprintf("case %d", i)
c.caPool = v.pool
c.base.VerifyOutgoing = v.verify
c.base.AutoTLS = v.autoEncryptTLS
require.Equal(t, v.expected, c.outgoingRPCTLSEnabled(), info)
}
}
func TestConfigurator_MutualTLSCapable(t *testing.T) {
t.Run("no ca", func(t *testing.T) {
config := Config{
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
require.False(t, c.MutualTLSCapable())
})
t.Run("ca and no keys", func(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
require.False(t, c.MutualTLSCapable())
})
t.Run("ca and manual key", func(t *testing.T) {
config := Config{
CAFile: "../test/hostname/CertAuth.crt",
CertFile: "../test/hostname/Bob.crt",
KeyFile: "../test/hostname/Bob.key",
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
require.True(t, c.MutualTLSCapable())
})
loadFile := func(t *testing.T, path string) string {
data, err := ioutil.ReadFile(path)
require.NoError(t, err)
return string(data)
}
t.Run("autoencrypt ca and no autoencrypt keys", func(t *testing.T) {
config := Config{
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
caPEM := loadFile(t, "../test/hostname/CertAuth.crt")
require.NoError(t, c.UpdateAutoTLSCA([]string{caPEM}))
require.False(t, c.MutualTLSCapable())
})
t.Run("autoencrypt ca and autoencrypt key", func(t *testing.T) {
config := Config{
Domain: "consul",
}
c, err := NewConfigurator(config, nil)
require.NoError(t, err)
caPEM := loadFile(t, "../test/hostname/CertAuth.crt")
certPEM := loadFile(t, "../test/hostname/Bob.crt")
keyPEM := loadFile(t, "../test/hostname/Bob.key")
require.NoError(t, c.UpdateAutoTLSCA([]string{caPEM}))
require.NoError(t, c.UpdateAutoTLSCert(certPEM, keyPEM))
require.True(t, c.MutualTLSCapable())
})
}
func TestConfigurator_UpdateAutoTLSCA_DoesNotPanic(t *testing.T) {
config := Config{
Domain: "consul",
}
c, err := NewConfigurator(config, hclog.New(nil))
require.NoError(t, err)
err = c.UpdateAutoTLSCA([]string{"invalid pem"})
require.Error(t, err)
}
func TestConfigurator_VerifyIncomingRPC(t *testing.T) {
c := Configurator{base: &Config{
VerifyIncomingRPC: true,
}}
verify := c.VerifyIncomingRPC()
require.Equal(t, c.base.VerifyIncomingRPC, verify)
}
func TestConfigurator_IncomingRPCConfig(t *testing.T) {
c, err := NewConfigurator(Config{
VerifyIncomingRPC: true,
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
}, nil)
require.NoError(t, err)
tlsConf := c.IncomingRPCConfig()
require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
require.Empty(t, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
require.NotNil(t, tlsConf.GetConfigForClient)
tlsConf, err = tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
require.Empty(t, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
}
func TestConfigurator_IncomingALPNRPCConfig(t *testing.T) {
c, err := NewConfigurator(Config{
VerifyIncomingRPC: false, // ignored, assumed true
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
}, nil)
require.NoError(t, err)
tlsConf := c.IncomingALPNRPCConfig([]string{"foo/1", "bar/2"})
require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
require.False(t, tlsConf.InsecureSkipVerify)
require.Equal(t, []string{"foo/1", "bar/2"}, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
require.NotNil(t, tlsConf.GetConfigForClient)
tlsConf, err = tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
require.False(t, tlsConf.InsecureSkipVerify)
require.Equal(t, []string{"foo/1", "bar/2"}, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
}
func TestConfigurator_IncomingHTTPSConfig(t *testing.T) {
// compare tls.Config.GetConfigForClient by nil/not-nil, since Go can not compare
// functions any other way.
cmpClientFunc := cmp.Comparer(func(x, y func(*tls.ClientHelloInfo) (*tls.Config, error)) bool {
return (x == nil && y == nil) || (x != nil && y != nil)
})
t.Run("default", func(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
cfg := c.IncomingHTTPSConfig()
expected := &tls.Config{
NextProtos: []string{"h2", "http/1.1"},
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS10,
GetConfigForClient: func(info *tls.ClientHelloInfo) (*tls.Config, error) {
return nil, nil
},
}
assertDeepEqual(t, expected, cfg, cmpTLSConfig, cmpClientFunc)
})
t.Run("verify incoming", func(t *testing.T) {
c := Configurator{base: &Config{VerifyIncoming: true}}
cfg := c.IncomingHTTPSConfig()
expected := &tls.Config{
NextProtos: []string{"h2", "http/1.1"},
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS10,
GetConfigForClient: func(info *tls.ClientHelloInfo) (*tls.Config, error) {
return nil, nil
},
ClientAuth: tls.RequireAndVerifyClientCert,
}
assertDeepEqual(t, expected, cfg, cmpTLSConfig, cmpClientFunc)
})
}
var cmpTLSConfig = cmp.Options{
cmpopts.IgnoreFields(tls.Config{}, "GetCertificate", "GetClientCertificate"),
cmpopts.IgnoreUnexported(tls.Config{}),
}
func TestConfigurator_OutgoingTLSConfigForCheck(t *testing.T) {
type testCase struct {
name string
conf func() (*Configurator, error)
skipVerify bool
serverName string
expected *tls.Config
}
run := func(t *testing.T, tc testCase) {
configurator, err := tc.conf()
require.NoError(t, err)
c := configurator.OutgoingTLSConfigForCheck(tc.skipVerify, tc.serverName)
assertDeepEqual(t, tc.expected, c, cmpTLSConfig)
}
testCases := []testCase{
{
name: "default tls",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{}, nil)
},
expected: &tls.Config{},
},
{
name: "default tls, skip verify, no server name",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: false,
}, nil)
},
skipVerify: true,
expected: &tls.Config{InsecureSkipVerify: true},
},
{
name: "default tls, skip verify, default server name",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: false,
ServerName: "servername",
NodeName: "nodename",
}, nil)
},
skipVerify: true,
expected: &tls.Config{InsecureSkipVerify: true},
},
{
name: "default tls, skip verify, check server name",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: false,
ServerName: "servername",
}, nil)
},
skipVerify: true,
serverName: "check-server-name",
expected: &tls.Config{
InsecureSkipVerify: true,
ServerName: "check-server-name",
},
},
{
name: "agent tls, default server name",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: true,
NodeName: "nodename",
ServerName: "servername",
}, nil)
},
expected: &tls.Config{
MinVersion: tls.VersionTLS12,
ServerName: "servername",
},
},
{
name: "agent tls, skip verify, node name for server name",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: true,
NodeName: "nodename",
}, nil)
},
skipVerify: true,
expected: &tls.Config{
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS12,
ServerName: "nodename",
},
},
{
name: "agent tls, skip verify, with server name override",
conf: func() (*Configurator, error) {
return NewConfigurator(Config{
TLSMinVersion: "tls12",
EnableAgentTLSForChecks: true,
ServerName: "servername",
}, nil)
},
skipVerify: true,
serverName: "override",
expected: &tls.Config{
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS12,
ServerName: "override",
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
run(t, tc)
})
}
}
func assertDeepEqual(t *testing.T, x, y interface{}, opts ...cmp.Option) {
t.Helper()
if diff := cmp.Diff(x, y, opts...); diff != "" {
t.Fatalf("assertion failed: values are not equal\n--- expected\n+++ actual\n%v", diff)
}
}
func TestConfigurator_OutgoingRPCConfig(t *testing.T) {
c := &Configurator{base: &Config{}}
require.Nil(t, c.OutgoingRPCConfig())
c, err := NewConfigurator(Config{
VerifyOutgoing: true,
CAFile: "../test/ca/root.cer",
}, nil)
require.NoError(t, err)
tlsConf := c.OutgoingRPCConfig()
require.NotNil(t, tlsConf)
require.Equal(t, tls.NoClientCert, tlsConf.ClientAuth)
require.True(t, tlsConf.InsecureSkipVerify)
require.Empty(t, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
}
func TestConfigurator_OutgoingALPNRPCConfig(t *testing.T) {
c := &Configurator{base: &Config{}}
require.Nil(t, c.outgoingALPNRPCConfig())
c, err := NewConfigurator(Config{
VerifyOutgoing: false, // ignored, assumed true
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
}, nil)
require.NoError(t, err)
tlsConf := c.outgoingALPNRPCConfig()
require.NotNil(t, tlsConf)
require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
require.False(t, tlsConf.InsecureSkipVerify)
require.Empty(t, tlsConf.NextProtos)
require.Empty(t, tlsConf.ServerName)
}
func TestConfigurator_OutgoingRPCWrapper(t *testing.T) {
c := &Configurator{base: &Config{}}
wrapper := c.OutgoingRPCWrapper()
require.NotNil(t, wrapper)
conn := &net.TCPConn{}
cWrap, err := wrapper("", conn)
require.NoError(t, err)
require.Equal(t, conn, cWrap)
c, err = NewConfigurator(Config{
VerifyOutgoing: true,
CAFile: "../test/ca/root.cer",
}, nil)
require.NoError(t, err)
wrapper = c.OutgoingRPCWrapper()
require.NotNil(t, wrapper)
cWrap, err = wrapper("", conn)
require.EqualError(t, err, "invalid argument")
require.NotEqual(t, conn, cWrap)
}
func TestConfigurator_OutgoingALPNRPCWrapper(t *testing.T) {
c := &Configurator{base: &Config{}}
wrapper := c.OutgoingRPCWrapper()
require.NotNil(t, wrapper)
conn := &net.TCPConn{}
cWrap, err := wrapper("", conn)
require.NoError(t, err)
require.Equal(t, conn, cWrap)
c, err = NewConfigurator(Config{
VerifyOutgoing: true,
CAFile: "../test/ca/root.cer",
}, nil)
require.NoError(t, err)
wrapper = c.OutgoingRPCWrapper()
require.NotNil(t, wrapper)
cWrap, err = wrapper("", conn)
require.EqualError(t, err, "invalid argument")
require.NotEqual(t, conn, cWrap)
}
func TestConfigurator_UpdateChecks(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
require.NoError(t, c.Update(Config{}))
require.Error(t, c.Update(Config{VerifyOutgoing: true}))
require.Error(t, c.Update(Config{VerifyIncoming: true, CAFile: "../test/ca/root.cer"}))
require.False(t, c.base.VerifyIncoming)
require.False(t, c.base.VerifyOutgoing)
require.Equal(t, uint64(2), c.version)
}
func TestConfigurator_UpdateSetsStuff(t *testing.T) {
c, err := NewConfigurator(Config{}, nil)
require.NoError(t, err)
require.Nil(t, c.caPool)
require.Nil(t, c.manual.cert)
require.Equal(t, c.base, &Config{})
require.Equal(t, uint64(1), c.version)
require.Error(t, c.Update(Config{VerifyOutgoing: true}))
require.Equal(t, uint64(1), c.version)
config := Config{
CAFile: "../test/ca/root.cer",
CertFile: "../test/key/ourdomain.cer",
KeyFile: "../test/key/ourdomain.key",
}
require.NoError(t, c.Update(config))
require.NotNil(t, c.caPool)
require.Len(t, c.caPool.Subjects(), 1)
require.NotNil(t, c.manual.cert)
require.Equal(t, c.base, &config)
require.Equal(t, uint64(2), c.version)
}
func TestConfigurator_ServerNameOrNodeName(t *testing.T) {
c := Configurator{base: &Config{}}
type variant struct {
server, node, expected string
}
variants := []variant{
{"", "", ""},
{"a", "", "a"},
{"", "b", "b"},
{"a", "b", "a"},
}
for _, v := range variants {
c.base.ServerName = v.server
c.base.NodeName = v.node
require.Equal(t, v.expected, c.serverNameOrNodeName())
}
}
func TestConfigurator_VerifyOutgoing(t *testing.T) {
c := Configurator{base: &Config{}}
type variant struct {
verify bool
autoEncryptTLS bool
pool *x509.CertPool
expected bool
}
variants := []variant{
{false, false, nil, false},
{true, false, nil, true},
{false, true, nil, false},
{true, true, nil, true},
{false, false, &x509.CertPool{}, false},
{true, false, &x509.CertPool{}, true},
{false, true, &x509.CertPool{}, true},
{true, true, &x509.CertPool{}, true},
}
for i, v := range variants {
info := fmt.Sprintf("case %d", i)
c.caPool = v.pool
c.base.VerifyOutgoing = v.verify
c.base.AutoTLS = v.autoEncryptTLS
require.Equal(t, v.expected, c.verifyOutgoing(), info)
}
}
func TestConfigurator_Domain(t *testing.T) {
c := Configurator{base: &Config{Domain: "something"}}
require.Equal(t, "something", c.domain())
}
func TestConfigurator_VerifyServerHostname(t *testing.T) {
c := Configurator{base: &Config{}}
require.False(t, c.VerifyServerHostname())
c.base.VerifyServerHostname = true
c.autoTLS.verifyServerHostname = false
require.True(t, c.VerifyServerHostname())
c.base.VerifyServerHostname = false
c.autoTLS.verifyServerHostname = true
require.True(t, c.VerifyServerHostname())
c.base.VerifyServerHostname = true
c.autoTLS.verifyServerHostname = true
require.True(t, c.VerifyServerHostname())
}
func TestConfigurator_AutoEncryptCert(t *testing.T) {
c := Configurator{base: &Config{}}
require.Nil(t, c.AutoEncryptCert())
cert, err := loadKeyPair("../test/key/something_expired.cer", "../test/key/something_expired.key")
require.NoError(t, err)
c.autoTLS.cert = cert
require.Equal(t, int64(1561561551), c.AutoEncryptCert().NotAfter.Unix())
cert, err = loadKeyPair("../test/key/ourdomain.cer", "../test/key/ourdomain.key")
require.NoError(t, err)
c.autoTLS.cert = cert
require.Equal(t, int64(4679716209), c.AutoEncryptCert().NotAfter.Unix())
}
func TestConfig_tlsVersions(t *testing.T) {
require.Equal(t, []string{"tls10", "tls11", "tls12", "tls13"}, tlsVersions())
expected := "tls10, tls11, tls12, tls13"
require.Equal(t, expected, strings.Join(tlsVersions(), ", "))
}