Merge pull request #10497 from hashicorp/dnephin/tls-cert-exploration-3
tlsutil: unexport and remove methods
This commit is contained in:
commit
6b5d3b78ef
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@ -394,19 +394,7 @@ func validateConfig(config Config, pool *x509.CertPool, cert *tls.Certificate) e
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}
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func (c Config) anyVerifyIncoming() bool {
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return c.baseVerifyIncoming() || c.VerifyIncomingRPC || c.VerifyIncomingHTTPS
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}
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func (c Config) verifyIncomingRPC() bool {
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return c.baseVerifyIncoming() || c.VerifyIncomingRPC
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}
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func (c Config) verifyIncomingHTTPS() bool {
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return c.baseVerifyIncoming() || c.VerifyIncomingHTTPS
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}
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func (c *Config) baseVerifyIncoming() bool {
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return c.VerifyIncoming
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return c.VerifyIncoming || c.VerifyIncomingRPC || c.VerifyIncomingHTTPS
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}
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func loadKeyPair(certFile, keyFile string) (*tls.Certificate, error) {
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@ -540,37 +528,26 @@ func (c *Configurator) Cert() *tls.Certificate {
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return cert
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}
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// This function acquires a read lock because it reads from the config.
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// VerifyIncomingRPC returns true if the configuration has enabled either
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// VerifyIncoming, or VerifyIncomingRPC
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func (c *Configurator) VerifyIncomingRPC() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.base.verifyIncomingRPC()
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return c.base.VerifyIncoming || c.base.VerifyIncomingRPC
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) outgoingRPCTLSDisabled() bool {
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func (c *Configurator) outgoingRPCTLSEnabled() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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// if AutoEncrypt enabled, always use TLS
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if c.base.AutoTLS {
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return false
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}
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// if CAs are provided or VerifyOutgoing is set, use TLS
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if c.base.VerifyOutgoing {
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return false
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}
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return true
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// use TLS if AutoEncrypt or VerifyOutgoing are enabled.
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return c.base.AutoTLS || c.base.VerifyOutgoing
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}
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// MutualTLSCapable returns true if Configurator has a CA and a local TLS
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// certificate configured.
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func (c *Configurator) MutualTLSCapable() bool {
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return c.mutualTLSCapable()
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) mutualTLSCapable() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.caPool != nil && (c.autoTLS.cert != nil || c.manual.cert != nil)
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@ -608,27 +585,6 @@ func (c *Configurator) domain() string {
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return c.base.Domain
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) verifyIncomingRPC() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.base.verifyIncomingRPC()
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) verifyIncomingHTTPS() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.base.verifyIncomingHTTPS()
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) enableAgentTLSForChecks() bool {
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c.lock.RLock()
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defer c.lock.RUnlock()
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return c.base.EnableAgentTLSForChecks
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}
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// This function acquires a read lock because it reads from the config.
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func (c *Configurator) serverNameOrNodeName() string {
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c.lock.RLock()
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@ -665,7 +621,7 @@ func (c *Configurator) IncomingGRPCConfig() *tls.Config {
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// IncomingRPCConfig generates a *tls.Config for incoming RPC connections.
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func (c *Configurator) IncomingRPCConfig() *tls.Config {
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c.log("IncomingRPCConfig")
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config := c.commonTLSConfig(c.verifyIncomingRPC())
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config := c.commonTLSConfig(c.VerifyIncomingRPC())
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config.GetConfigForClient = func(*tls.ClientHelloInfo) (*tls.Config, error) {
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return c.IncomingRPCConfig(), nil
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}
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@ -705,7 +661,12 @@ func (c *Configurator) IncomingInsecureRPCConfig() *tls.Config {
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// IncomingHTTPSConfig generates a *tls.Config for incoming HTTPS connections.
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func (c *Configurator) IncomingHTTPSConfig() *tls.Config {
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c.log("IncomingHTTPSConfig")
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config := c.commonTLSConfig(c.verifyIncomingHTTPS())
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c.lock.RLock()
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verifyIncoming := c.base.VerifyIncoming || c.base.VerifyIncomingHTTPS
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c.lock.RUnlock()
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config := c.commonTLSConfig(verifyIncoming)
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config.NextProtos = []string{"h2", "http/1.1"}
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config.GetConfigForClient = func(*tls.ClientHelloInfo) (*tls.Config, error) {
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return c.IncomingHTTPSConfig(), nil
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@ -720,7 +681,11 @@ func (c *Configurator) IncomingHTTPSConfig() *tls.Config {
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func (c *Configurator) OutgoingTLSConfigForCheck(skipVerify bool, serverName string) *tls.Config {
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c.log("OutgoingTLSConfigForCheck")
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if !c.enableAgentTLSForChecks() {
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c.lock.RLock()
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useAgentTLS := c.base.EnableAgentTLSForChecks
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c.lock.RUnlock()
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if !useAgentTLS {
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return &tls.Config{
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InsecureSkipVerify: skipVerify,
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ServerName: serverName,
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@ -742,20 +707,20 @@ func (c *Configurator) OutgoingTLSConfigForCheck(skipVerify bool, serverName str
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// otherwise we assume that no TLS should be used.
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func (c *Configurator) OutgoingRPCConfig() *tls.Config {
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c.log("OutgoingRPCConfig")
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if c.outgoingRPCTLSDisabled() {
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if !c.outgoingRPCTLSEnabled() {
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return nil
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}
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return c.commonTLSConfig(false)
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}
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// OutgoingALPNRPCConfig generates a *tls.Config for outgoing RPC connections
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// outgoingALPNRPCConfig generates a *tls.Config for outgoing RPC connections
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// directly using TLS with ALPN instead of the older byte-prefixed protocol.
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// If there is a CA or VerifyOutgoing is set, a *tls.Config will be provided,
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// otherwise we assume that no TLS should be used which completely disables the
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// ALPN variation.
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func (c *Configurator) OutgoingALPNRPCConfig() *tls.Config {
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c.log("OutgoingALPNRPCConfig")
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if !c.mutualTLSCapable() {
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func (c *Configurator) outgoingALPNRPCConfig() *tls.Config {
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c.log("outgoingALPNRPCConfig")
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if !c.MutualTLSCapable() {
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return nil // ultimately this will hard-fail as TLS is required
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}
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@ -780,15 +745,17 @@ func (c *Configurator) OutgoingRPCWrapper() DCWrapper {
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}
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}
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// UseTLS returns true if the outgoing RPC requests have been explicitly configured
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// to use TLS (via VerifyOutgoing or AutoTLS, and the target DC supports TLS.
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func (c *Configurator) UseTLS(dc string) bool {
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return !c.outgoingRPCTLSDisabled() && c.getAreaForPeerDatacenterUseTLS(dc)
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return c.outgoingRPCTLSEnabled() && c.getAreaForPeerDatacenterUseTLS(dc)
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}
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// OutgoingALPNRPCWrapper wraps the result of OutgoingALPNRPCConfig in an
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// OutgoingALPNRPCWrapper wraps the result of outgoingALPNRPCConfig in an
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// ALPNWrapper. It configures all of the negotiation plumbing.
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func (c *Configurator) OutgoingALPNRPCWrapper() ALPNWrapper {
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c.log("OutgoingALPNRPCWrapper")
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if !c.mutualTLSCapable() {
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if !c.MutualTLSCapable() {
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return nil
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}
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@ -893,7 +860,7 @@ func (c *Configurator) wrapALPNTLSClient(dc, nodeName, alpnProto string, conn ne
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return nil, fmt.Errorf("cannot dial using ALPN-RPC without a target alpn protocol")
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}
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config := c.OutgoingALPNRPCConfig()
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config := c.outgoingALPNRPCConfig()
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if config == nil {
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return nil, fmt.Errorf("cannot dial via a mesh gateway when outgoing TLS is disabled")
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}
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@ -741,22 +741,21 @@ func TestConfigurator_OutgoingRPCTLSDisabled(t *testing.T) {
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expected bool
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}
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variants := []variant{
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{false, false, nil, true},
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{true, false, nil, false},
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{false, true, nil, false},
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{true, true, nil, false},
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{false, false, nil, false},
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{true, false, nil, true},
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{false, true, nil, true},
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{true, true, nil, true},
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// {false, false, &x509.CertPool{}, false},
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{true, false, &x509.CertPool{}, false},
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{false, true, &x509.CertPool{}, false},
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{true, true, &x509.CertPool{}, false},
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{true, false, &x509.CertPool{}, true},
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{false, true, &x509.CertPool{}, true},
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{true, true, &x509.CertPool{}, true},
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}
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for i, v := range variants {
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info := fmt.Sprintf("case %d", i)
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c.caPool = v.pool
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c.base.VerifyOutgoing = v.verify
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c.base.AutoTLS = v.autoEncryptTLS
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require.Equal(t, v.expected, c.outgoingRPCTLSDisabled(), info)
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require.Equal(t, v.expected, c.outgoingRPCTLSEnabled(), info)
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}
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}
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@ -768,7 +767,7 @@ func TestConfigurator_MutualTLSCapable(t *testing.T) {
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c, err := NewConfigurator(config, nil)
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require.NoError(t, err)
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require.False(t, c.mutualTLSCapable())
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require.False(t, c.MutualTLSCapable())
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})
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t.Run("ca and no keys", func(t *testing.T) {
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@ -779,7 +778,7 @@ func TestConfigurator_MutualTLSCapable(t *testing.T) {
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c, err := NewConfigurator(config, nil)
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require.NoError(t, err)
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require.False(t, c.mutualTLSCapable())
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require.False(t, c.MutualTLSCapable())
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})
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t.Run("ca and manual key", func(t *testing.T) {
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@ -792,7 +791,7 @@ func TestConfigurator_MutualTLSCapable(t *testing.T) {
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c, err := NewConfigurator(config, nil)
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require.NoError(t, err)
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require.True(t, c.mutualTLSCapable())
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require.True(t, c.MutualTLSCapable())
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})
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loadFile := func(t *testing.T, path string) string {
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@ -811,7 +810,7 @@ func TestConfigurator_MutualTLSCapable(t *testing.T) {
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caPEM := loadFile(t, "../test/hostname/CertAuth.crt")
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require.NoError(t, c.UpdateAutoTLSCA([]string{caPEM}))
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require.False(t, c.mutualTLSCapable())
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require.False(t, c.MutualTLSCapable())
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})
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t.Run("autoencrypt ca and autoencrypt key", func(t *testing.T) {
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@ -827,7 +826,7 @@ func TestConfigurator_MutualTLSCapable(t *testing.T) {
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require.NoError(t, c.UpdateAutoTLSCA([]string{caPEM}))
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require.NoError(t, c.UpdateAutoTLSCert(certPEM, keyPEM))
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require.True(t, c.mutualTLSCapable())
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require.True(t, c.MutualTLSCapable())
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})
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}
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@ -846,26 +845,10 @@ func TestConfigurator_VerifyIncomingRPC(t *testing.T) {
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c := Configurator{base: &Config{
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VerifyIncomingRPC: true,
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}}
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verify := c.verifyIncomingRPC()
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verify := c.VerifyIncomingRPC()
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require.Equal(t, c.base.VerifyIncomingRPC, verify)
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}
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func TestConfigurator_VerifyIncomingHTTPS(t *testing.T) {
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c := Configurator{base: &Config{
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VerifyIncomingHTTPS: true,
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}}
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verify := c.verifyIncomingHTTPS()
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require.Equal(t, c.base.VerifyIncomingHTTPS, verify)
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}
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func TestConfigurator_EnableAgentTLSForChecks(t *testing.T) {
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c := Configurator{base: &Config{
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EnableAgentTLSForChecks: true,
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}}
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enabled := c.enableAgentTLSForChecks()
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require.Equal(t, c.base.EnableAgentTLSForChecks, enabled)
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}
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func TestConfigurator_IncomingRPCConfig(t *testing.T) {
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c, err := NewConfigurator(Config{
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VerifyIncomingRPC: true,
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@ -911,8 +894,52 @@ func TestConfigurator_IncomingALPNRPCConfig(t *testing.T) {
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}
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func TestConfigurator_IncomingHTTPSConfig(t *testing.T) {
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c := Configurator{base: &Config{}}
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require.Equal(t, []string{"h2", "http/1.1"}, c.IncomingHTTPSConfig().NextProtos)
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// compare tls.Config.GetConfigForClient by nil/not-nil, since Go can not compare
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// functions any other way.
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cmpClientFunc := cmp.Comparer(func(x, y func(*tls.ClientHelloInfo) (*tls.Config, error)) bool {
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return (x == nil && y == nil) || (x != nil && y != nil)
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})
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t.Run("default", func(t *testing.T) {
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c, err := NewConfigurator(Config{}, nil)
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require.NoError(t, err)
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cfg := c.IncomingHTTPSConfig()
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expected := &tls.Config{
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NextProtos: []string{"h2", "http/1.1"},
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InsecureSkipVerify: true,
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MinVersion: tls.VersionTLS10,
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GetConfigForClient: func(info *tls.ClientHelloInfo) (*tls.Config, error) {
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return nil, nil
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},
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}
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assertDeepEqual(t, expected, cfg, cmpTLSConfig, cmpClientFunc)
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})
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t.Run("verify incoming", func(t *testing.T) {
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c := Configurator{base: &Config{VerifyIncoming: true}}
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cfg := c.IncomingHTTPSConfig()
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expected := &tls.Config{
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NextProtos: []string{"h2", "http/1.1"},
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InsecureSkipVerify: true,
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MinVersion: tls.VersionTLS10,
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GetConfigForClient: func(info *tls.ClientHelloInfo) (*tls.Config, error) {
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return nil, nil
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},
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ClientAuth: tls.RequireAndVerifyClientCert,
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}
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assertDeepEqual(t, expected, cfg, cmpTLSConfig, cmpClientFunc)
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})
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}
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var cmpTLSConfig = cmp.Options{
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cmpopts.IgnoreFields(tls.Config{}, "GetCertificate", "GetClientCertificate"),
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cmpopts.IgnoreUnexported(tls.Config{}),
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}
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func TestConfigurator_OutgoingTLSConfigForCheck(t *testing.T) {
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@ -924,11 +951,6 @@ func TestConfigurator_OutgoingTLSConfigForCheck(t *testing.T) {
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expected *tls.Config
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}
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cmpTLSConfig := cmp.Options{
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cmpopts.IgnoreFields(tls.Config{}, "GetCertificate", "GetClientCertificate"),
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cmpopts.IgnoreUnexported(tls.Config{}),
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}
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run := func(t *testing.T, tc testCase) {
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configurator, err := tc.conf()
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require.NoError(t, err)
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@ -1068,7 +1090,7 @@ func TestConfigurator_OutgoingRPCConfig(t *testing.T) {
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func TestConfigurator_OutgoingALPNRPCConfig(t *testing.T) {
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c := &Configurator{base: &Config{}}
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require.Nil(t, c.OutgoingALPNRPCConfig())
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require.Nil(t, c.outgoingALPNRPCConfig())
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c, err := NewConfigurator(Config{
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VerifyOutgoing: false, // ignored, assumed true
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@ -1078,7 +1100,7 @@ func TestConfigurator_OutgoingALPNRPCConfig(t *testing.T) {
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}, nil)
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require.NoError(t, err)
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tlsConf := c.OutgoingALPNRPCConfig()
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tlsConf := c.outgoingALPNRPCConfig()
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require.NotNil(t, tlsConf)
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require.Equal(t, tls.RequireAndVerifyClientCert, tlsConf.ClientAuth)
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require.False(t, tlsConf.InsecureSkipVerify)
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