chromeos/network/network_cert_migrator_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chromeos/network/network_cert_migrator.h"
   6
   7 #include <cert.h>
   8
   9 #include "base/file_util.h"
  10 #include "base/files/file_path.h"
  11 #include "base/run_loop.h"
  12 #include "chromeos/cert_loader.h"
  13 #include "chromeos/dbus/dbus_thread_manager.h"
  14 #include "chromeos/dbus/shill_service_client.h"
  15 #include "chromeos/network/network_state_handler.h"
  16 #include "chromeos/tpm_token_loader.h"
  17 #include "crypto/nss_util.h"
  18 #include "crypto/nss_util_internal.h"
  19 #include "net/base/crypto_module.h"
  20 #include "net/base/net_errors.h"
  21 #include "net/base/test_data_directory.h"
  22 #include "net/cert/nss_cert_database_chromeos.h"
  23 #include "net/cert/x509_certificate.h"
  24 #include "net/test/cert_test_util.h"
  25 #include "testing/gtest/include/gtest/gtest.h"
  26 #include "third_party/cros_system_api/dbus/service_constants.h"
  27
  28 namespace chromeos {
  29
  30 namespace {
  31
  32 const char* kWifiStub = "wifi_stub";
  33 const char* kVPNStub = "vpn_stub";
  34 const char* kNSSNickname = "nss_nickname";
  35 const char* kFakePEM = "pem";
  36
  37 }  // namespace
  38
  39 class NetworkCertMigratorTest : public testing::Test {
  40  public:
  41   NetworkCertMigratorTest() : service_test_(NULL),
  42                               user_("user_hash") {
  43   }
  44   virtual ~NetworkCertMigratorTest() {}
  45
  46   virtual void SetUp() OVERRIDE {
  47     // Initialize NSS db for the user.
  48     ASSERT_TRUE(user_.constructed_successfully());
  49     user_.FinishInit();
  50     test_nssdb_.reset(new net::NSSCertDatabaseChromeOS(
  51         crypto::GetPublicSlotForChromeOSUser(user_.username_hash()),
  52         crypto::GetPrivateSlotForChromeOSUser(
  53             user_.username_hash(),
  54             base::Callback<void(crypto::ScopedPK11Slot)>())));
  55     test_nssdb_->SetSlowTaskRunnerForTest(message_loop_.message_loop_proxy());
  56
  57     DBusThreadManager::InitializeWithStub();
  58     service_test_ =
  59         DBusThreadManager::Get()->GetShillServiceClient()->GetTestInterface();
  60     base::RunLoop().RunUntilIdle();
  61     service_test_->ClearServices();
  62     base::RunLoop().RunUntilIdle();
  63
  64     CertLoader::Initialize();
  65     CertLoader* cert_loader_ = CertLoader::Get();
  66     cert_loader_->StartWithNSSDB(test_nssdb_.get());
  67   }
  68
  69   virtual void TearDown() OVERRIDE {
  70     network_cert_migrator_.reset();
  71     network_state_handler_.reset();
  72     CertLoader::Shutdown();
  73     DBusThreadManager::Shutdown();
  74     CleanupTestCert();
  75   }
  76
  77  protected:
  78   void SetupTestCACert() {
  79     scoped_refptr<net::X509Certificate> cert_wo_nickname =
  80         net::CreateCertificateListFromFile(net::GetTestCertsDirectory(),
  81                                            "eku-test-root.pem",
  82                                            net::X509Certificate::FORMAT_AUTO)
  83             .back();
  84     net::X509Certificate::GetPEMEncoded(cert_wo_nickname->os_cert_handle(),
  85                                         &test_ca_cert_pem_);
  86     std::string der_encoded;
  87     net::X509Certificate::GetDEREncoded(cert_wo_nickname->os_cert_handle(),
  88                                         &der_encoded);
  89     cert_wo_nickname = NULL;
  90
  91     test_ca_cert_ = net::X509Certificate::CreateFromBytesWithNickname(
  92         der_encoded.data(), der_encoded.size(), kNSSNickname);
  93     net::CertificateList cert_list;
  94     cert_list.push_back(test_ca_cert_);
  95     net::NSSCertDatabase::ImportCertFailureList failures;
  96     EXPECT_TRUE(test_nssdb_->ImportCACerts(
  97         cert_list, net::NSSCertDatabase::TRUST_DEFAULT, &failures));
  98     ASSERT_TRUE(failures.empty()) << net::ErrorToString(failures[0].net_error);
  99   }
 100
 101   void SetupNetworkHandlers() {
 102     network_state_handler_.reset(NetworkStateHandler::InitializeForTest());
 103     network_cert_migrator_.reset(new NetworkCertMigrator);
 104     network_cert_migrator_->Init(network_state_handler_.get());
 105   }
 106
 107   void SetupWifiWithNss() {
 108     const bool add_to_visible = true;
 109     service_test_->AddService(kWifiStub,
 110                               kWifiStub,
 111                               shill::kTypeWifi,
 112                               shill::kStateOnline,
 113                               add_to_visible);
 114     service_test_->SetServiceProperty(kWifiStub,
 115                                       shill::kEapCaCertNssProperty,
 116                                       base::StringValue(kNSSNickname));
 117   }
 118
 119   void GetEapCACertProperties(std::string* nss_nickname, std::string* ca_pem) {
 120     nss_nickname->clear();
 121     ca_pem->clear();
 122     const base::DictionaryValue* properties =
 123         service_test_->GetServiceProperties(kWifiStub);
 124     properties->GetStringWithoutPathExpansion(shill::kEapCaCertNssProperty,
 125                                               nss_nickname);
 126     const base::ListValue* ca_pems = NULL;
 127     properties->GetListWithoutPathExpansion(shill::kEapCaCertPemProperty,
 128                                             &ca_pems);
 129     if (ca_pems && !ca_pems->empty())
 130       ca_pems->GetString(0, ca_pem);
 131   }
 132
 133   void SetupVpnWithNss(bool open_vpn) {
 134     const bool add_to_visible = true;
 135     service_test_->AddService(kVPNStub,
 136                               kVPNStub,
 137                               shill::kTypeVPN,
 138                               shill::kStateIdle,
 139                               add_to_visible);
 140     base::DictionaryValue provider;
 141     const char* nss_property = open_vpn ? shill::kOpenVPNCaCertNSSProperty
 142                                         : shill::kL2tpIpsecCaCertNssProperty;
 143     provider.SetStringWithoutPathExpansion(nss_property, kNSSNickname);
 144     service_test_->SetServiceProperty(
 145         kVPNStub, shill::kProviderProperty, provider);
 146   }
 147
 148   void GetVpnCACertProperties(bool open_vpn,
 149                               std::string* nss_nickname,
 150                               std::string* ca_pem) {
 151     nss_nickname->clear();
 152     ca_pem->clear();
 153     const base::DictionaryValue* properties =
 154         service_test_->GetServiceProperties(kVPNStub);
 155     const base::DictionaryValue* provider = NULL;
 156     properties->GetDictionaryWithoutPathExpansion(shill::kProviderProperty,
 157                                                   &provider);
 158     if (!provider)
 159       return;
 160     const char* nss_property = open_vpn ? shill::kOpenVPNCaCertNSSProperty
 161                                         : shill::kL2tpIpsecCaCertNssProperty;
 162     provider->GetStringWithoutPathExpansion(nss_property, nss_nickname);
 163     const base::ListValue* ca_pems = NULL;
 164     const char* pem_property = open_vpn ? shill::kOpenVPNCaCertPemProperty
 165                                         : shill::kL2tpIpsecCaCertPemProperty;
 166     provider->GetListWithoutPathExpansion(pem_property, &ca_pems);
 167     if (ca_pems && !ca_pems->empty())
 168       ca_pems->GetString(0, ca_pem);
 169   }
 170
 171   ShillServiceClient::TestInterface* service_test_;
 172   scoped_refptr<net::X509Certificate> test_ca_cert_;
 173   std::string test_ca_cert_pem_;
 174   base::MessageLoop message_loop_;
 175
 176  private:
 177   void CleanupTestCert() {
 178     ASSERT_TRUE(test_nssdb_->DeleteCertAndKey(test_ca_cert_.get()));
 179   }
 180
 181   scoped_ptr<NetworkStateHandler> network_state_handler_;
 182   scoped_ptr<NetworkCertMigrator> network_cert_migrator_;
 183   crypto::ScopedTestNSSChromeOSUser user_;
 184   scoped_ptr<net::NSSCertDatabaseChromeOS> test_nssdb_;
 185
 186   DISALLOW_COPY_AND_ASSIGN(NetworkCertMigratorTest);
 187 };
 188
 189 TEST_F(NetworkCertMigratorTest, MigrateNssOnInitialization) {
 190   // Add a new network for migration before the handlers are initialized.
 191   SetupWifiWithNss();
 192   SetupTestCACert();
 193   SetupNetworkHandlers();
 194
 195   base::RunLoop().RunUntilIdle();
 196   std::string nss_nickname, ca_pem;
 197   GetEapCACertProperties(&nss_nickname, &ca_pem);
 198   EXPECT_TRUE(nss_nickname.empty());
 199   EXPECT_EQ(test_ca_cert_pem_, ca_pem);
 200 }
 201
 202 TEST_F(NetworkCertMigratorTest, MigrateNssOnNetworkAppearance) {
 203   SetupTestCACert();
 204   SetupNetworkHandlers();
 205   base::RunLoop().RunUntilIdle();
 206
 207   // Add a new network for migration after the handlers are initialized.
 208   SetupWifiWithNss();
 209
 210   base::RunLoop().RunUntilIdle();
 211   std::string nss_nickname, ca_pem;
 212   GetEapCACertProperties(&nss_nickname, &ca_pem);
 213   EXPECT_TRUE(nss_nickname.empty());
 214   EXPECT_EQ(test_ca_cert_pem_, ca_pem);
 215 }
 216
 217 TEST_F(NetworkCertMigratorTest, DoNotMigrateNssIfPemSet) {
 218   // Add a new network with an already set PEM property.
 219   SetupWifiWithNss();
 220   base::ListValue ca_pems;
 221   ca_pems.AppendString(kFakePEM);
 222   service_test_->SetServiceProperty(
 223       kWifiStub, shill::kEapCaCertPemProperty, ca_pems);
 224
 225   SetupTestCACert();
 226   SetupNetworkHandlers();
 227   base::RunLoop().RunUntilIdle();
 228
 229   std::string nss_nickname, ca_pem;
 230   GetEapCACertProperties(&nss_nickname, &ca_pem);
 231   EXPECT_TRUE(nss_nickname.empty());
 232   EXPECT_EQ(kFakePEM, ca_pem);
 233 }
 234
 235 TEST_F(NetworkCertMigratorTest, MigrateOpenVpn) {
 236   // Add a new network for migration before the handlers are initialized.
 237   SetupVpnWithNss(true /* OpenVPN */);
 238
 239   SetupTestCACert();
 240   SetupNetworkHandlers();
 241
 242   base::RunLoop().RunUntilIdle();
 243   std::string nss_nickname, ca_pem;
 244   GetVpnCACertProperties(true /* OpenVPN */, &nss_nickname, &ca_pem);
 245   EXPECT_TRUE(nss_nickname.empty());
 246   EXPECT_EQ(test_ca_cert_pem_, ca_pem);
 247 }
 248
 249 TEST_F(NetworkCertMigratorTest, MigrateIpsecVpn) {
 250   // Add a new network for migration before the handlers are initialized.
 251   SetupVpnWithNss(false /* not OpenVPN */);
 252
 253   SetupTestCACert();
 254   SetupNetworkHandlers();
 255
 256   base::RunLoop().RunUntilIdle();
 257   std::string nss_nickname, ca_pem;
 258   GetVpnCACertProperties(false /* not OpenVPN */, &nss_nickname, &ca_pem);
 259   EXPECT_TRUE(nss_nickname.empty());
 260   EXPECT_EQ(test_ca_cert_pem_, ca_pem);
 261 }
 262
 263 }  // namespace chromeos