chromeos/network/onc/onc_signature.cc

   1 // Copyright (c) 2012 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/onc/onc_signature.h"
   6
   7 #include "components/onc/onc_constants.h"
   8 #include "third_party/cros_system_api/dbus/service_constants.h"
   9
  10 using base::Value;
  11
  12 namespace chromeos {
  13 namespace onc {
  14 namespace {
  15
  16 const OncValueSignature kBoolSignature = {
  17   base::Value::TYPE_BOOLEAN, NULL
  18 };
  19 const OncValueSignature kStringSignature = {
  20   base::Value::TYPE_STRING, NULL
  21 };
  22 const OncValueSignature kIntegerSignature = {
  23   base::Value::TYPE_INTEGER, NULL
  24 };
  25 const OncValueSignature kDoubleSignature = {
  26   base::Value::TYPE_DOUBLE, NULL
  27 };
  28 const OncValueSignature kStringListSignature = {
  29   base::Value::TYPE_LIST, NULL, &kStringSignature
  30 };
  31 const OncValueSignature kIntegerListSignature = {
  32   base::Value::TYPE_LIST, NULL, &kIntegerSignature
  33 };
  34 const OncValueSignature kIPConfigListSignature = {
  35   base::Value::TYPE_LIST, NULL, &kIPConfigSignature
  36 };
  37 const OncValueSignature kCellularApnListSignature = {
  38   base::Value::TYPE_LIST, NULL, &kCellularApnSignature
  39 };
  40 const OncValueSignature kCellularFoundNetworkListSignature = {
  41   base::Value::TYPE_LIST, NULL, &kCellularFoundNetworkSignature
  42 };
  43
  44 const OncFieldSignature issuer_subject_pattern_fields[] = {
  45     { ::onc::client_cert::kCommonName, &kStringSignature},
  46     { ::onc::client_cert::kLocality, &kStringSignature},
  47     { ::onc::client_cert::kOrganization, &kStringSignature},
  48     { ::onc::client_cert::kOrganizationalUnit, &kStringSignature},
  49     {NULL}};
  50
  51 const OncFieldSignature certificate_pattern_fields[] = {
  52     { ::onc::kRecommended, &kRecommendedSignature},
  53     { ::onc::client_cert::kEnrollmentURI, &kStringListSignature},
  54     { ::onc::client_cert::kIssuer, &kIssuerSubjectPatternSignature},
  55     { ::onc::client_cert::kIssuerCARef, &kStringListSignature},
  56     // Used internally. Not officially supported.
  57     { ::onc::client_cert::kIssuerCAPEMs, &kStringListSignature},
  58     { ::onc::client_cert::kSubject, &kIssuerSubjectPatternSignature},
  59     {NULL}};
  60
  61 const OncFieldSignature eap_fields[] = {
  62     { ::onc::kRecommended, &kRecommendedSignature},
  63     { ::onc::eap::kAnonymousIdentity, &kStringSignature},
  64     { ::onc::client_cert::kClientCertPattern, &kCertificatePatternSignature},
  65     { ::onc::client_cert::kClientCertRef, &kStringSignature},
  66     { ::onc::client_cert::kClientCertType, &kStringSignature},
  67     { ::onc::eap::kIdentity, &kStringSignature},
  68     { ::onc::eap::kInner, &kStringSignature},
  69     { ::onc::eap::kOuter, &kStringSignature},
  70     { ::onc::eap::kPassword, &kStringSignature},
  71     { ::onc::eap::kSaveCredentials, &kBoolSignature},
  72     // Used internally. Not officially supported.
  73     { ::onc::eap::kServerCAPEMs, &kStringListSignature},
  74     { ::onc::eap::kServerCARef, &kStringSignature},
  75     { ::onc::eap::kServerCARefs, &kStringListSignature},
  76     { ::onc::eap::kUseSystemCAs, &kBoolSignature},
  77     {NULL}};
  78
  79 const OncFieldSignature ipsec_fields[] = {
  80     { ::onc::kRecommended, &kRecommendedSignature},
  81     { ::onc::ipsec::kAuthenticationType, &kStringSignature},
  82     { ::onc::client_cert::kClientCertPattern, &kCertificatePatternSignature},
  83     { ::onc::client_cert::kClientCertRef, &kStringSignature},
  84     { ::onc::client_cert::kClientCertType, &kStringSignature},
  85     { ::onc::ipsec::kGroup, &kStringSignature},
  86     { ::onc::ipsec::kIKEVersion, &kIntegerSignature},
  87     { ::onc::ipsec::kPSK, &kStringSignature},
  88     { ::onc::vpn::kSaveCredentials, &kBoolSignature},
  89     // Used internally. Not officially supported.
  90     { ::onc::ipsec::kServerCAPEMs, &kStringListSignature},
  91     { ::onc::ipsec::kServerCARef, &kStringSignature},
  92     { ::onc::ipsec::kServerCARefs, &kStringListSignature},
  93     { ::onc::ipsec::kXAUTH, &kXAUTHSignature},
  94     // Not yet supported.
  95     //  { ipsec::kEAP, &kEAPSignature },
  96     {NULL}};
  97
  98 const OncFieldSignature xauth_fields[] = {
  99     { ::onc::vpn::kPassword, &kStringSignature},
 100     { ::onc::vpn::kUsername, &kStringSignature},
 101     {NULL}};
 102
 103 const OncFieldSignature l2tp_fields[] = {
 104     { ::onc::kRecommended, &kRecommendedSignature},
 105     { ::onc::vpn::kPassword, &kStringSignature},
 106     { ::onc::vpn::kSaveCredentials, &kBoolSignature},
 107     { ::onc::vpn::kUsername, &kStringSignature},
 108     {NULL}};
 109
 110 const OncFieldSignature openvpn_fields[] = {
 111     { ::onc::kRecommended, &kRecommendedSignature},
 112     { ::onc::openvpn::kAuth, &kStringSignature},
 113     { ::onc::openvpn::kAuthNoCache, &kBoolSignature},
 114     { ::onc::openvpn::kAuthRetry, &kStringSignature},
 115     { ::onc::openvpn::kCipher, &kStringSignature},
 116     { ::onc::client_cert::kClientCertPattern, &kCertificatePatternSignature},
 117     { ::onc::client_cert::kClientCertRef, &kStringSignature},
 118     { ::onc::client_cert::kClientCertType, &kStringSignature},
 119     { ::onc::openvpn::kCompLZO, &kStringSignature},
 120     { ::onc::openvpn::kCompNoAdapt, &kBoolSignature},
 121     { ::onc::openvpn::kIgnoreDefaultRoute, &kBoolSignature},
 122     { ::onc::openvpn::kKeyDirection, &kStringSignature},
 123     { ::onc::openvpn::kNsCertType, &kStringSignature},
 124     { ::onc::vpn::kPassword, &kStringSignature},
 125     { ::onc::openvpn::kPort, &kIntegerSignature},
 126     { ::onc::openvpn::kProto, &kStringSignature},
 127     { ::onc::openvpn::kPushPeerInfo, &kBoolSignature},
 128     { ::onc::openvpn::kRemoteCertEKU, &kStringSignature},
 129     { ::onc::openvpn::kRemoteCertKU, &kStringListSignature},
 130     { ::onc::openvpn::kRemoteCertTLS, &kStringSignature},
 131     { ::onc::openvpn::kRenegSec, &kIntegerSignature},
 132     { ::onc::vpn::kSaveCredentials, &kBoolSignature},
 133     // Used internally. Not officially supported.
 134     { ::onc::openvpn::kServerCAPEMs, &kStringListSignature},
 135     { ::onc::openvpn::kServerCARef, &kStringSignature},
 136     { ::onc::openvpn::kServerCARefs, &kStringListSignature},
 137     // Not supported, yet.
 138     { ::onc::openvpn::kServerCertPEM, &kStringSignature},
 139     { ::onc::openvpn::kServerCertRef, &kStringSignature},
 140     { ::onc::openvpn::kServerPollTimeout, &kIntegerSignature},
 141     { ::onc::openvpn::kShaper, &kIntegerSignature},
 142     { ::onc::openvpn::kStaticChallenge, &kStringSignature},
 143     { ::onc::openvpn::kTLSAuthContents, &kStringSignature},
 144     { ::onc::openvpn::kTLSRemote, &kStringSignature},
 145     { ::onc::vpn::kUsername, &kStringSignature},
 146     // Not supported, yet.
 147     { ::onc::openvpn::kVerb, &kStringSignature},
 148     { ::onc::openvpn::kVerifyHash, &kStringSignature},
 149     { ::onc::openvpn::kVerifyX509, &kVerifyX509Signature},
 150     {NULL}};
 151
 152 const OncFieldSignature verify_x509_fields[] = {
 153     { ::onc::verify_x509::kName, &kStringSignature},
 154     { ::onc::verify_x509::kType, &kStringSignature},
 155     {NULL}};
 156
 157 const OncFieldSignature vpn_fields[] = {
 158     { ::onc::kRecommended, &kRecommendedSignature},
 159     { ::onc::vpn::kAutoConnect, &kBoolSignature},
 160     { ::onc::vpn::kHost, &kStringSignature},
 161     { ::onc::vpn::kIPsec, &kIPsecSignature},
 162     { ::onc::vpn::kL2TP, &kL2TPSignature},
 163     { ::onc::vpn::kOpenVPN, &kOpenVPNSignature},
 164     { ::onc::vpn::kType, &kStringSignature},
 165     {NULL}};
 166
 167 const OncFieldSignature ethernet_fields[] = {
 168     { ::onc::kRecommended, &kRecommendedSignature},
 169     { ::onc::ethernet::kAuthentication, &kStringSignature},
 170     { ::onc::ethernet::kEAP, &kEAPSignature},
 171     {NULL}};
 172
 173 const OncFieldSignature ipconfig_fields[] = {
 174     { ::onc::ipconfig::kGateway, &kStringSignature},
 175     { ::onc::ipconfig::kIPAddress, &kStringSignature},
 176     { ::onc::ipconfig::kNameServers, &kStringListSignature},
 177     { ::onc::ipconfig::kRoutingPrefix, &kIntegerSignature},
 178     { ::onc::network_config::kSearchDomains, &kStringListSignature},
 179     { ::onc::ipconfig::kType, &kStringSignature},
 180     { ::onc::ipconfig::kWebProxyAutoDiscoveryUrl, &kStringSignature},
 181     {NULL}};
 182
 183 const OncFieldSignature proxy_location_fields[] = {
 184     { ::onc::proxy::kHost, &kStringSignature},
 185     { ::onc::proxy::kPort, &kIntegerSignature}, {NULL}};
 186
 187 const OncFieldSignature proxy_manual_fields[] = {
 188     { ::onc::proxy::kFtp, &kProxyLocationSignature},
 189     { ::onc::proxy::kHttp, &kProxyLocationSignature},
 190     { ::onc::proxy::kHttps, &kProxyLocationSignature},
 191     { ::onc::proxy::kSocks, &kProxyLocationSignature},
 192     {NULL}};
 193
 194 const OncFieldSignature proxy_settings_fields[] = {
 195     { ::onc::kRecommended, &kRecommendedSignature},
 196     { ::onc::proxy::kExcludeDomains, &kStringListSignature},
 197     { ::onc::proxy::kManual, &kProxyManualSignature},
 198     { ::onc::proxy::kPAC, &kStringSignature},
 199     { ::onc::proxy::kType, &kStringSignature},
 200     {NULL}};
 201
 202 const OncFieldSignature wifi_fields[] = {
 203     { ::onc::kRecommended, &kRecommendedSignature},
 204     { ::onc::wifi::kAutoConnect, &kBoolSignature},
 205     { ::onc::wifi::kEAP, &kEAPSignature},
 206     { ::onc::wifi::kHiddenSSID, &kBoolSignature},
 207     { ::onc::wifi::kPassphrase, &kStringSignature},
 208     { ::onc::wifi::kSSID, &kStringSignature},
 209     { ::onc::wifi::kSecurity, &kStringSignature},
 210     {NULL}};
 211
 212 const OncFieldSignature wifi_with_state_fields[] = {
 213     { ::onc::wifi::kBSSID, &kStringSignature},
 214     { ::onc::wifi::kFrequency, &kIntegerSignature},
 215     { ::onc::wifi::kFrequencyList, &kIntegerListSignature},
 216     { ::onc::wifi::kSignalStrength, &kIntegerSignature},
 217     {NULL}};
 218
 219 const OncFieldSignature cellular_provider_fields[] = {
 220     { ::onc::cellular_provider::kCode, &kStringSignature},
 221     { ::onc::cellular_provider::kCountry, &kStringSignature},
 222     { ::onc::cellular_provider::kName, &kStringSignature},
 223     {NULL}};
 224
 225 const OncFieldSignature cellular_apn_fields[] = {
 226     { ::onc::cellular_apn::kAccessPointName, &kStringSignature},
 227     { ::onc::cellular_apn::kName, &kStringSignature},
 228     { ::onc::cellular_apn::kUsername, &kStringSignature},
 229     { ::onc::cellular_apn::kPassword, &kStringSignature},
 230     { ::onc::cellular_apn::kLocalizedName, &kStringSignature},
 231     { ::onc::cellular_apn::kLanguage, &kStringSignature},
 232     {NULL}};
 233
 234 const OncFieldSignature cellular_found_network_fields[] = {
 235     { ::onc::cellular_found_network::kStatus, &kStringSignature},
 236     { ::onc::cellular_found_network::kNetworkId, &kStringSignature},
 237     { ::onc::cellular_found_network::kShortName, &kStringSignature},
 238     { ::onc::cellular_found_network::kLongName, &kStringSignature},
 239     { ::onc::cellular_found_network::kTechnology, &kStringSignature},
 240     {NULL}};
 241
 242 const OncFieldSignature sim_lock_status_fields[] = {
 243     { ::onc::sim_lock_status::kLockEnabled, &kBoolSignature},
 244     { ::onc::sim_lock_status::kLockType, &kStringSignature},
 245     { ::onc::sim_lock_status::kRetriesLeft, &kDoubleSignature},
 246     {NULL}};
 247
 248 const OncFieldSignature cellular_fields[] = {
 249     { ::onc::kRecommended, &kRecommendedSignature},
 250     { ::onc::cellular::kAPN, &kCellularApnSignature },
 251     { ::onc::cellular::kAPNList, &kCellularApnListSignature},
 252     {NULL}};
 253
 254 const OncFieldSignature cellular_with_state_fields[] = {
 255     { ::onc::cellular::kActivationType, &kStringSignature},
 256     { ::onc::cellular::kActivationState, &kStringSignature},
 257     { ::onc::cellular::kAllowRoaming, &kBoolSignature},
 258     { ::onc::cellular::kCarrier, &kStringSignature},
 259     { ::onc::cellular::kESN, &kStringSignature},
 260     { ::onc::cellular::kFamily, &kStringSignature},
 261     { ::onc::cellular::kFirmwareRevision, &kStringSignature},
 262     { ::onc::cellular::kFoundNetworks, &kCellularFoundNetworkListSignature},
 263     { ::onc::cellular::kHardwareRevision, &kStringSignature},
 264     { ::onc::cellular::kHomeProvider, &kCellularProviderSignature},
 265     { ::onc::cellular::kICCID, &kStringSignature},
 266     { ::onc::cellular::kIMEI, &kStringSignature},
 267     { ::onc::cellular::kIMSI, &kStringSignature},
 268     { ::onc::cellular::kLastGoodAPN, &kCellularApnSignature },
 269     { ::onc::cellular::kManufacturer, &kStringSignature},
 270     { ::onc::cellular::kMDN, &kStringSignature},
 271     { ::onc::cellular::kMEID, &kStringSignature},
 272     { ::onc::cellular::kMIN, &kStringSignature},
 273     { ::onc::cellular::kModelID, &kStringSignature},
 274     { ::onc::cellular::kNetworkTechnology, &kStringSignature},
 275     { ::onc::cellular::kPRLVersion, &kIntegerSignature},
 276     { ::onc::cellular::kProviderRequiresRoaming, &kBoolSignature},
 277     { ::onc::cellular::kRoamingState, &kStringSignature},
 278     { ::onc::cellular::kSelectedNetwork, &kStringSignature},
 279     { ::onc::cellular::kServingOperator, &kCellularProviderSignature},
 280     { ::onc::cellular::kSIMLockStatus, &kSIMLockStatusSignature},
 281     { ::onc::cellular::kSIMPresent, &kBoolSignature},
 282     { ::onc::cellular::kSupportNetworkScan, &kBoolSignature},
 283     { ::onc::cellular::kSupportedCarriers, &kStringListSignature},
 284     {NULL}};
 285
 286 const OncFieldSignature network_configuration_fields[] = {
 287     { ::onc::network_config::kCellular, &kCellularSignature},
 288     { ::onc::network_config::kEthernet, &kEthernetSignature},
 289     { ::onc::network_config::kGUID, &kStringSignature},
 290
 291     { ::onc::network_config::kName, &kStringSignature},
 292
 293     // Not supported, yet.
 294     { ::onc::network_config::kNameServers, &kStringListSignature},
 295
 296     { ::onc::network_config::kPriority, &kIntegerSignature},
 297     { ::onc::network_config::kProxySettings, &kProxySettingsSignature},
 298     { ::onc::kRecommended, &kRecommendedSignature},
 299     { ::onc::kRemove, &kBoolSignature},
 300
 301     // Not supported, yet.
 302     { ::onc::network_config::kSearchDomains, &kStringListSignature},
 303
 304     { ::onc::network_config::kStaticIPConfig, &kStaticIPConfigSignature},
 305     { ::onc::network_config::kType, &kStringSignature},
 306     { ::onc::network_config::kVPN, &kVPNSignature},
 307     { ::onc::network_config::kWiFi, &kWiFiSignature},
 308     {NULL}};
 309
 310 const OncFieldSignature network_with_state_fields[] = {
 311     { ::onc::network_config::kCellular, &kCellularWithStateSignature},
 312     { ::onc::network_config::kConnectionState, &kStringSignature},
 313     { ::onc::network_config::kConnectable, &kBoolSignature},
 314     { ::onc::network_config::kErrorState, &kStringSignature},
 315     { ::onc::network_config::kIPConfigs, &kIPConfigListSignature},
 316     { ::onc::network_config::kMacAddress, &kStringSignature},
 317     { ::onc::network_config::kRestrictedConnectivity, &kBoolSignature},
 318     { ::onc::network_config::kSavedIPConfig, &kSavedIPConfigSignature},
 319     { ::onc::network_config::kSource, &kStringSignature},
 320     { ::onc::network_config::kWiFi, &kWiFiWithStateSignature},
 321     {NULL}};
 322
 323 const OncFieldSignature global_network_configuration_fields[] = {
 324     { ::onc::global_network_config::kAllowOnlyPolicyNetworksToAutoconnect,
 325       &kBoolSignature},
 326     {NULL}};
 327
 328 const OncFieldSignature certificate_fields[] = {
 329     { ::onc::certificate::kGUID, &kStringSignature},
 330     { ::onc::certificate::kPKCS12, &kStringSignature},
 331     { ::onc::kRemove, &kBoolSignature},
 332     { ::onc::certificate::kTrustBits, &kStringListSignature},
 333     { ::onc::certificate::kType, &kStringSignature},
 334     { ::onc::certificate::kX509, &kStringSignature},
 335     {NULL}};
 336
 337 const OncFieldSignature toplevel_configuration_fields[] = {
 338     { ::onc::toplevel_config::kCertificates, &kCertificateListSignature},
 339     { ::onc::toplevel_config::kNetworkConfigurations,
 340       &kNetworkConfigurationListSignature},
 341     { ::onc::toplevel_config::kGlobalNetworkConfiguration,
 342       &kGlobalNetworkConfigurationSignature},
 343     { ::onc::toplevel_config::kType, &kStringSignature},
 344     { ::onc::encrypted::kCipher, &kStringSignature},
 345     { ::onc::encrypted::kCiphertext, &kStringSignature},
 346     { ::onc::encrypted::kHMAC, &kStringSignature},
 347     { ::onc::encrypted::kHMACMethod, &kStringSignature},
 348     { ::onc::encrypted::kIV, &kStringSignature},
 349     { ::onc::encrypted::kIterations, &kIntegerSignature},
 350     { ::onc::encrypted::kSalt, &kStringSignature},
 351     { ::onc::encrypted::kStretch, &kStringSignature}, {NULL}};
 352
 353 }  // namespace
 354
 355 const OncValueSignature kRecommendedSignature = {
 356   base::Value::TYPE_LIST, NULL, &kStringSignature
 357 };
 358 const OncValueSignature kEAPSignature = {
 359   base::Value::TYPE_DICTIONARY, eap_fields, NULL
 360 };
 361 const OncValueSignature kIssuerSubjectPatternSignature = {
 362   base::Value::TYPE_DICTIONARY, issuer_subject_pattern_fields, NULL
 363 };
 364 const OncValueSignature kCertificatePatternSignature = {
 365   base::Value::TYPE_DICTIONARY, certificate_pattern_fields, NULL
 366 };
 367 const OncValueSignature kIPsecSignature = {
 368   base::Value::TYPE_DICTIONARY, ipsec_fields, NULL
 369 };
 370 const OncValueSignature kXAUTHSignature = {
 371   base::Value::TYPE_DICTIONARY, xauth_fields, NULL
 372 };
 373 const OncValueSignature kL2TPSignature = {
 374   base::Value::TYPE_DICTIONARY, l2tp_fields, NULL
 375 };
 376 const OncValueSignature kOpenVPNSignature = {
 377   base::Value::TYPE_DICTIONARY, openvpn_fields, NULL
 378 };
 379 const OncValueSignature kVerifyX509Signature = {
 380   base::Value::TYPE_DICTIONARY, verify_x509_fields, NULL
 381 };
 382 const OncValueSignature kVPNSignature = {
 383   base::Value::TYPE_DICTIONARY, vpn_fields, NULL
 384 };
 385 const OncValueSignature kEthernetSignature = {
 386   base::Value::TYPE_DICTIONARY, ethernet_fields, NULL
 387 };
 388 const OncValueSignature kIPConfigSignature = {
 389   base::Value::TYPE_DICTIONARY, ipconfig_fields, NULL
 390 };
 391 const OncValueSignature kSavedIPConfigSignature = {
 392   base::Value::TYPE_DICTIONARY, ipconfig_fields, NULL
 393 };
 394 const OncValueSignature kStaticIPConfigSignature = {
 395   base::Value::TYPE_DICTIONARY, ipconfig_fields, NULL
 396 };
 397 const OncValueSignature kProxyLocationSignature = {
 398   base::Value::TYPE_DICTIONARY, proxy_location_fields, NULL
 399 };
 400 const OncValueSignature kProxyManualSignature = {
 401   base::Value::TYPE_DICTIONARY, proxy_manual_fields, NULL
 402 };
 403 const OncValueSignature kProxySettingsSignature = {
 404   base::Value::TYPE_DICTIONARY, proxy_settings_fields, NULL
 405 };
 406 const OncValueSignature kWiFiSignature = {
 407   base::Value::TYPE_DICTIONARY, wifi_fields, NULL
 408 };
 409 const OncValueSignature kCertificateSignature = {
 410   base::Value::TYPE_DICTIONARY, certificate_fields, NULL
 411 };
 412 const OncValueSignature kNetworkConfigurationSignature = {
 413   base::Value::TYPE_DICTIONARY, network_configuration_fields, NULL
 414 };
 415 const OncValueSignature kGlobalNetworkConfigurationSignature = {
 416   base::Value::TYPE_DICTIONARY, global_network_configuration_fields, NULL
 417 };
 418 const OncValueSignature kCertificateListSignature = {
 419   base::Value::TYPE_LIST, NULL, &kCertificateSignature
 420 };
 421 const OncValueSignature kNetworkConfigurationListSignature = {
 422   base::Value::TYPE_LIST, NULL, &kNetworkConfigurationSignature
 423 };
 424 const OncValueSignature kToplevelConfigurationSignature = {
 425   base::Value::TYPE_DICTIONARY, toplevel_configuration_fields, NULL
 426 };
 427
 428 // Derived "ONC with State" signatures.
 429 const OncValueSignature kNetworkWithStateSignature = {
 430   base::Value::TYPE_DICTIONARY, network_with_state_fields, NULL,
 431   &kNetworkConfigurationSignature
 432 };
 433 const OncValueSignature kWiFiWithStateSignature = {
 434   base::Value::TYPE_DICTIONARY, wifi_with_state_fields, NULL, &kWiFiSignature
 435 };
 436 const OncValueSignature kCellularSignature = {
 437   base::Value::TYPE_DICTIONARY, cellular_fields, NULL
 438 };
 439 const OncValueSignature kCellularWithStateSignature = {
 440   base::Value::TYPE_DICTIONARY, cellular_with_state_fields, NULL,
 441   &kCellularSignature
 442 };
 443 const OncValueSignature kCellularProviderSignature = {
 444   base::Value::TYPE_DICTIONARY, cellular_provider_fields, NULL
 445 };
 446 const OncValueSignature kCellularApnSignature = {
 447   base::Value::TYPE_DICTIONARY, cellular_apn_fields, NULL
 448 };
 449 const OncValueSignature kCellularFoundNetworkSignature = {
 450   base::Value::TYPE_DICTIONARY, cellular_found_network_fields, NULL
 451 };
 452 const OncValueSignature kSIMLockStatusSignature = {
 453   base::Value::TYPE_DICTIONARY, sim_lock_status_fields, NULL
 454 };
 455
 456 const OncFieldSignature* GetFieldSignature(const OncValueSignature& signature,
 457                                            const std::string& onc_field_name) {
 458   if (!signature.fields)
 459     return NULL;
 460   for (const OncFieldSignature* field_signature = signature.fields;
 461        field_signature->onc_field_name != NULL; ++field_signature) {
 462     if (onc_field_name == field_signature->onc_field_name)
 463       return field_signature;
 464   }
 465   if (signature.base_signature)
 466     return GetFieldSignature(*signature.base_signature, onc_field_name);
 467   return NULL;
 468 }
 469
 470 namespace {
 471
 472 struct CredentialEntry {
 473   const OncValueSignature* value_signature;
 474   const char* field_name;
 475 };
 476
 477 const CredentialEntry credentials[] = {
 478     {&kEAPSignature, ::onc::eap::kPassword},
 479     {&kIPsecSignature, ::onc::ipsec::kPSK},
 480     {&kXAUTHSignature, ::onc::vpn::kPassword},
 481     {&kL2TPSignature, ::onc::vpn::kPassword},
 482     {&kOpenVPNSignature, ::onc::vpn::kPassword},
 483     {&kOpenVPNSignature, ::onc::openvpn::kTLSAuthContents},
 484     {&kWiFiSignature, ::onc::wifi::kPassphrase},
 485     {&kCellularApnSignature, ::onc::cellular_apn::kPassword},
 486     {NULL}};
 487
 488 }  // namespace
 489
 490 bool FieldIsCredential(const OncValueSignature& signature,
 491                        const std::string& onc_field_name) {
 492   for (const CredentialEntry* entry = credentials;
 493        entry->value_signature != NULL; ++entry) {
 494     if (&signature == entry->value_signature &&
 495         onc_field_name == entry->field_name) {
 496       return true;
 497     }
 498   }
 499   return false;
 500 }
 501
 502 }  // namespace onc
 503 }  // namespace chromeos