Exemplo n.º 1
0
func TestLoadSecurityConfigInvalidCert(t *testing.T) {
	tc := testutils.NewTestCA(t)
	defer tc.Stop()

	// Write some garbage to the cert
	ioutil.WriteFile(tc.Paths.Node.Cert, []byte(`-----BEGIN CERTIFICATE-----\n
some random garbage\n
-----END CERTIFICATE-----`), 0644)

	krw := ca.NewKeyReadWriter(tc.Paths.Node, nil, nil)

	_, err := ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw)
	assert.Error(t, err)

	nodeConfig, err := tc.RootCA.CreateSecurityConfig(tc.Context, krw,
		ca.CertificateRequestConfig{
			Remotes: tc.Remotes,
		})

	assert.NoError(t, err)
	assert.NotNil(t, nodeConfig)
	assert.NotNil(t, nodeConfig.ClientTLSCreds)
	assert.NotNil(t, nodeConfig.ServerTLSCreds)
	assert.Equal(t, tc.RootCA, *nodeConfig.RootCA())
}
Exemplo n.º 2
0
func TestLoadSecurityConfigIncorrectPassphrase(t *testing.T) {
	tc := testutils.NewTestCA(t)
	defer tc.Stop()

	paths := ca.NewConfigPaths(tc.TempDir)
	_, err := tc.RootCA.IssueAndSaveNewCertificates(ca.NewKeyReadWriter(paths.Node, []byte("kek"), nil),
		"nodeID", ca.WorkerRole, tc.Organization)
	require.NoError(t, err)

	_, err = ca.LoadSecurityConfig(tc.Context, tc.RootCA, ca.NewKeyReadWriter(paths.Node, nil, nil))
	require.IsType(t, ca.ErrInvalidKEK{}, err)
}
Exemplo n.º 3
0
func TestLoadSecurityConfigInvalidKey(t *testing.T) {
	tc := testutils.NewTestCA(t)
	defer tc.Stop()

	// Write some garbage to the Key
	ioutil.WriteFile(tc.Paths.Node.Key, []byte(`-----BEGIN EC PRIVATE KEY-----\n
some random garbage\n
-----END EC PRIVATE KEY-----`), 0644)

	krw := ca.NewKeyReadWriter(tc.Paths.Node, nil, nil)

	_, err := ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw, false)
	assert.Error(t, err)

	nodeConfig, err := tc.RootCA.CreateSecurityConfig(tc.Context, krw,
		ca.CertificateRequestConfig{
			ConnBroker: tc.ConnBroker,
		})
	assert.NoError(t, err)
	assert.NotNil(t, nodeConfig)
	assert.NotNil(t, nodeConfig.ClientTLSCreds)
	assert.NotNil(t, nodeConfig.ServerTLSCreds)
	assert.Equal(t, tc.RootCA, *nodeConfig.RootCA())
}
Exemplo n.º 4
0
func (n *Node) loadSecurityConfig(ctx context.Context) (*ca.SecurityConfig, error) {
	paths := ca.NewConfigPaths(filepath.Join(n.config.StateDir, certDirectory))
	var securityConfig *ca.SecurityConfig

	krw := ca.NewKeyReadWriter(paths.Node, n.unlockKey, &manager.RaftDEKData{})
	if err := krw.Migrate(); err != nil {
		return nil, err
	}

	// Check if we already have a valid certificates on disk.
	rootCA, err := ca.GetLocalRootCA(paths.RootCA)
	if err != nil && err != ca.ErrNoLocalRootCA {
		return nil, err
	}
	if err == nil {
		securityConfig, err = ca.LoadSecurityConfig(ctx, rootCA, krw)
		if err != nil {
			_, isInvalidKEK := errors.Cause(err).(ca.ErrInvalidKEK)
			if isInvalidKEK {
				return nil, ErrInvalidUnlockKey
			} else if !os.IsNotExist(err) {
				return nil, errors.Wrapf(err, "error while loading TLS certificate in %s", paths.Node.Cert)
			}
		}
	}

	if securityConfig == nil {
		if n.config.JoinAddr == "" {
			// if we're not joining a cluster, bootstrap a new one - and we have to set the unlock key
			n.unlockKey = nil
			if n.config.AutoLockManagers {
				n.unlockKey = encryption.GenerateSecretKey()
			}
			krw = ca.NewKeyReadWriter(paths.Node, n.unlockKey, &manager.RaftDEKData{})
			rootCA, err = ca.CreateRootCA(ca.DefaultRootCN, paths.RootCA)
			if err != nil {
				return nil, err
			}
			log.G(ctx).Debug("generated CA key and certificate")
		} else if err == ca.ErrNoLocalRootCA { // from previous error loading the root CA from disk
			rootCA, err = ca.DownloadRootCA(ctx, paths.RootCA, n.config.JoinToken, n.remotes)
			if err != nil {
				return nil, err
			}
			log.G(ctx).Debug("downloaded CA certificate")
		}

		// Obtain new certs and setup TLS certificates renewal for this node:
		// - If certificates weren't present on disk, we call CreateSecurityConfig, which blocks
		//   until a valid certificate has been issued.
		// - We wait for CreateSecurityConfig to finish since we need a certificate to operate.

		// Attempt to load certificate from disk
		securityConfig, err = ca.LoadSecurityConfig(ctx, rootCA, krw)
		if err == nil {
			log.G(ctx).WithFields(logrus.Fields{
				"node.id": securityConfig.ClientTLSCreds.NodeID(),
			}).Debugf("loaded TLS certificate")
		} else {
			if _, ok := errors.Cause(err).(ca.ErrInvalidKEK); ok {
				return nil, ErrInvalidUnlockKey
			}
			log.G(ctx).WithError(err).Debugf("no node credentials found in: %s", krw.Target())

			securityConfig, err = rootCA.CreateSecurityConfig(ctx, krw, ca.CertificateRequestConfig{
				Token:        n.config.JoinToken,
				Availability: n.config.Availability,
				Remotes:      n.remotes,
			})

			if err != nil {
				return nil, err
			}
		}
	}

	n.Lock()
	n.role = securityConfig.ClientTLSCreds.Role()
	n.nodeID = securityConfig.ClientTLSCreds.NodeID()
	n.roleCond.Broadcast()
	n.Unlock()

	return securityConfig, nil
}
Exemplo n.º 5
0
func TestLoadSecurityConfigExpiredCert(t *testing.T) {
	tc := testutils.NewTestCA(t)
	defer tc.Stop()

	_, key, err := ca.GenerateNewCSR()
	require.NoError(t, err)
	require.NoError(t, ioutil.WriteFile(tc.Paths.Node.Key, key, 0600))
	certKey, err := helpers.ParsePrivateKeyPEM(key)
	require.NoError(t, err)

	rootKey, err := helpers.ParsePrivateKeyPEM(tc.RootCA.Key)
	require.NoError(t, err)
	rootCert, err := helpers.ParseCertificatePEM(tc.RootCA.Cert)
	require.NoError(t, err)

	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
	require.NoError(t, err)

	genCert := func(notBefore, notAfter time.Time) {
		derBytes, err := x509.CreateCertificate(rand.Reader, &x509.Certificate{
			SerialNumber: serialNumber,
			Subject: pkix.Name{
				CommonName:         "CN",
				OrganizationalUnit: []string{"OU"},
				Organization:       []string{"ORG"},
			},
			NotBefore: notBefore,
			NotAfter:  notAfter,
		}, rootCert, certKey.Public(), rootKey)
		require.NoError(t, err)
		certBytes := pem.EncodeToMemory(&pem.Block{
			Type:  "CERTIFICATE",
			Bytes: derBytes,
		})
		require.NoError(t, ioutil.WriteFile(tc.Paths.Node.Cert, certBytes, 0644))
	}

	krw := ca.NewKeyReadWriter(tc.Paths.Node, nil, nil)
	now := time.Now()

	// A cert that is not yet valid is not valid even if expiry is allowed
	genCert(now.Add(time.Hour), now.Add(time.Hour*2))

	_, err = ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw, false)
	require.Error(t, err)
	require.IsType(t, x509.CertificateInvalidError{}, errors.Cause(err))

	_, err = ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw, true)
	require.Error(t, err)
	require.IsType(t, x509.CertificateInvalidError{}, errors.Cause(err))

	// a cert that is expired is not valid if expiry is not allowed
	genCert(now.Add(time.Hour*-3), now.Add(time.Hour*-1))

	_, err = ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw, false)
	require.Error(t, err)
	require.IsType(t, x509.CertificateInvalidError{}, errors.Cause(err))

	// but it is valid if expiry is allowed
	_, err = ca.LoadSecurityConfig(tc.Context, tc.RootCA, krw, true)
	require.NoError(t, err)
}