src/manager/service/ckm-service.cpp

   1 /*
   2  *  Copyright (c) 2000 - 2015 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *  Licensed under the Apache License, Version 2.0 (the "License");
   5  *  you may not use this file except in compliance with the License.
   6  *  You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License
  15  *
  16  *
  17  * @file        ckm-service.cpp
  18  * @author      Bartlomiej Grzelewski (b.grzelewski@samsung.com)
  19  * @version     1.0
  20  * @brief       CKM service implementation.
  21  */
  22
  23 #include <protocols.h>
  24
  25 #include <dpl/serialization.h>
  26 #include <dpl/log/log.h>
  27
  28 #include <ckm-service.h>
  29 #include <ckm-logic.h>
  30
  31 namespace {
  32 const CKM::InterfaceID SOCKET_ID_CONTROL = 0;
  33 const CKM::InterfaceID SOCKET_ID_STORAGE = 1;
  34 } // namespace anonymous
  35
  36 namespace CKM {
  37
  38 CKMService::CKMService()
  39   : m_logic(new CKMLogic)
  40 {}
  41
  42 CKMService::~CKMService() {
  43     delete m_logic;
  44 }
  45
  46 void CKMService::Start() {
  47     Create();
  48 }
  49
  50 void CKMService::Stop() {
  51     Join();
  52 }
  53
  54 GenericSocketService::ServiceDescriptionVector CKMService::GetServiceDescription()
  55 {
  56     return ServiceDescriptionVector {
  57         {SERVICE_SOCKET_CKM_CONTROL, "http://tizen.org/privilege/keymanager.admin", SOCKET_ID_CONTROL},
  58         {SERVICE_SOCKET_CKM_STORAGE, "http://tizen.org/privilege/keymanager", SOCKET_ID_STORAGE}
  59     };
  60 }
  61
  62 void CKMService::SetCommManager(CommMgr *manager)
  63 {
  64     ThreadService::SetCommManager(manager);
  65     Register(*manager);
  66 }
  67
  68 // CKMService does not support security check
  69 // so 3rd parameter is not used
  70 bool CKMService::ProcessOne(
  71     const ConnectionID &conn,
  72     ConnectionInfo &info,
  73     bool /*allowed*/)
  74 {
  75     LogDebug ("process One");
  76     RawBuffer response;
  77
  78     Try {
  79         if (!info.buffer.Ready())
  80             return false;
  81
  82         if (info.interfaceID == SOCKET_ID_CONTROL)
  83             response = ProcessControl(info.buffer);
  84         else
  85             response = ProcessStorage(info.credentials, info.buffer);
  86
  87         m_serviceManager->Write(conn, response);
  88
  89         return true;
  90     } Catch (MessageBuffer::Exception::Base) {
  91         LogError("Broken protocol. Closing socket.");
  92     } Catch (Exception::BrokenProtocol) {
  93         LogError("Broken protocol. Closing socket.");
  94     } catch (const DataType::Exception::Base &e) {
  95         LogError("Closing socket. DBDataType::Exception: " << e.DumpToString());
  96     } catch (const std::string &e) {
  97         LogError("String exception(" << e << "). Closing socket");
  98     } catch (const std::exception &e) {
  99         LogError("Std exception:: " << e.what());
 100     } catch (...) {
 101         LogError("Unknown exception. Closing socket.");
 102     }
 103
 104     m_serviceManager->Close(conn);
 105     return false;
 106 }
 107
 108 RawBuffer CKMService::ProcessControl(MessageBuffer &buffer) {
 109     int command = 0;
 110     uid_t user = 0;
 111     ControlCommand cc;
 112     Password newPass, oldPass;
 113     Label smackLabel;
 114
 115     buffer.Deserialize(command);
 116
 117     LogDebug("Process control. Command: " << command);
 118
 119     cc = static_cast<ControlCommand>(command);
 120
 121     switch(cc) {
 122     case ControlCommand::UNLOCK_USER_KEY:
 123         buffer.Deserialize(user, newPass);
 124         return m_logic->unlockUserKey(user, newPass);
 125     case ControlCommand::LOCK_USER_KEY:
 126         buffer.Deserialize(user);
 127         return m_logic->lockUserKey(user);
 128     case ControlCommand::REMOVE_USER_DATA:
 129         buffer.Deserialize(user);
 130         return m_logic->removeUserData(user);
 131     case ControlCommand::CHANGE_USER_PASSWORD:
 132         buffer.Deserialize(user, oldPass, newPass);
 133         return m_logic->changeUserPassword(user, oldPass, newPass);
 134     case ControlCommand::RESET_USER_PASSWORD:
 135         buffer.Deserialize(user, newPass);
 136         return m_logic->resetUserPassword(user, newPass);
 137     case ControlCommand::REMOVE_APP_DATA:
 138         buffer.Deserialize(smackLabel);
 139         return m_logic->removeApplicationData(smackLabel);
 140     case ControlCommand::UPDATE_CC_MODE:
 141         return m_logic->updateCCMode();
 142     case ControlCommand::SET_PERMISSION:
 143     {
 144         Name name;
 145         Label label;
 146         Label accessorLabel;
 147         PermissionMask permissionMask = 0;
 148
 149         buffer.Deserialize(user, name, label, accessorLabel, permissionMask);
 150
 151         Credentials cred(user, label);
 152         return m_logic->setPermission(
 153             cred,
 154             command,
 155             0, // dummy
 156             name,
 157             label,
 158             accessorLabel,
 159             permissionMask);
 160     }
 161     default:
 162         Throw(Exception::BrokenProtocol);
 163     }
 164 }
 165
 166 RawBuffer CKMService::ProcessStorage(Credentials &cred, MessageBuffer &buffer)
 167 {
 168     int command = 0;
 169     int msgID = 0;
 170     int tmpDataType = 0;
 171     Name name;
 172     Label label, accessorLabel;
 173
 174     buffer.Deserialize(command);
 175     buffer.Deserialize(msgID);
 176
 177     // This is a workaround solution for locktype=None in Tizen 2.2.1
 178     // When locktype is None, lockscreen app doesn't interfere with unlocking process.
 179     // Therefor lockscreen app cannot notify unlock events to key-manager when locktype is None.
 180     // So, to unlock user data when lock type is None, key-manager always try to unlock user data with null password.
 181     // Even if the result is fail, it will be ignored.
 182     Password nullPassword("");
 183     m_logic->unlockUserKey(cred.clientUid, nullPassword);
 184
 185     LogDebug("Process storage. Command: " << command);
 186
 187     switch(static_cast<LogicCommand>(command)) {
 188         case LogicCommand::SAVE:
 189         {
 190             RawBuffer rawData;
 191             PolicySerializable policy;
 192             buffer.Deserialize(tmpDataType, name, label, rawData, policy);
 193             return m_logic->saveData(
 194                 cred,
 195                 msgID,
 196                 name,
 197                 label,
 198                 rawData,
 199                 DataType(tmpDataType),
 200                 policy);
 201         }
 202         case LogicCommand::SAVE_PKCS12:
 203         {
 204             RawBuffer rawData;
 205             PKCS12Serializable pkcs;
 206             PolicySerializable keyPolicy, certPolicy;
 207             buffer.Deserialize(name, label, pkcs, keyPolicy, certPolicy);
 208             return m_logic->savePKCS12(
 209                 cred,
 210                 msgID,
 211                 name,
 212                 label,
 213                 pkcs,
 214                 keyPolicy,
 215                 certPolicy);
 216         }
 217         case LogicCommand::REMOVE:
 218         {
 219             buffer.Deserialize(name, label);
 220             return m_logic->removeData(
 221                 cred,
 222                 msgID,
 223                 name,
 224                 label);
 225         }
 226         case LogicCommand::GET:
 227         {
 228             Password password;
 229             buffer.Deserialize(tmpDataType, name, label, password);
 230             return m_logic->getData(
 231                 cred,
 232                 msgID,
 233                 DataType(tmpDataType),
 234                 name,
 235                 label,
 236                 password);
 237         }
 238         case LogicCommand::GET_PKCS12:
 239         {
 240             Password passKey;
 241             Password passCert;
 242             buffer.Deserialize(name,
 243                                label,
 244                                passKey,
 245                                passCert);
 246             return m_logic->getPKCS12(
 247                 cred,
 248                 msgID,
 249                 name,
 250                 label,
 251                 passKey,
 252                 passCert);
 253         }
 254         case LogicCommand::GET_LIST:
 255         {
 256             buffer.Deserialize(tmpDataType);
 257             return m_logic->getDataList(
 258                 cred,
 259                 msgID,
 260                 DataType(tmpDataType));
 261         }
 262         case LogicCommand::CREATE_KEY_AES:
 263         {
 264             int size = 0;
 265             Name keyName;
 266             Label keyLabel;
 267             PolicySerializable policyKey;
 268             buffer.Deserialize(size,
 269                                policyKey,
 270                                keyName,
 271                                keyLabel);
 272             return m_logic->createKeyAES(
 273                 cred,
 274                 msgID,
 275                 size,
 276                 keyName,
 277                 keyLabel,
 278                 policyKey);
 279         }
 280         case LogicCommand::CREATE_KEY_PAIR:
 281         {
 282             CryptoAlgorithmSerializable keyGenAlgorithm;
 283             Name privateKeyName;
 284             Label privateKeyLabel;
 285             Name publicKeyName;
 286             Label publicKeyLabel;
 287             PolicySerializable policyPrivateKey;
 288             PolicySerializable policyPublicKey;
 289             buffer.Deserialize(keyGenAlgorithm,
 290                                policyPrivateKey,
 291                                policyPublicKey,
 292                                privateKeyName,
 293                                privateKeyLabel,
 294                                publicKeyName,
 295                                publicKeyLabel);
 296             return m_logic->createKeyPair(
 297                 cred,
 298                 msgID,
 299                 keyGenAlgorithm,
 300                 privateKeyName,
 301                 privateKeyLabel,
 302                 publicKeyName,
 303                 publicKeyLabel,
 304                 policyPrivateKey,
 305                 policyPublicKey);
 306         }
 307         case LogicCommand::GET_CHAIN_CERT:
 308         {
 309             RawBuffer certificate;
 310             RawBufferVector untrustedVector;
 311             RawBufferVector trustedVector;
 312             bool systemCerts = false;
 313             buffer.Deserialize(certificate, untrustedVector, trustedVector, systemCerts);
 314             return m_logic->getCertificateChain(
 315                 cred,
 316                 msgID,
 317                 certificate,
 318                 untrustedVector,
 319                 trustedVector,
 320                 systemCerts);
 321         }
 322         case LogicCommand::GET_CHAIN_ALIAS:
 323         {
 324             RawBuffer certificate;
 325             LabelNameVector untrustedVector;
 326             LabelNameVector trustedVector;
 327             bool systemCerts = false;
 328             buffer.Deserialize(certificate, untrustedVector, trustedVector, systemCerts);
 329             return m_logic->getCertificateChain(
 330                 cred,
 331                 msgID,
 332                 certificate,
 333                 untrustedVector,
 334                 trustedVector,
 335                 systemCerts);
 336         }
 337         case LogicCommand::CREATE_SIGNATURE:
 338         {
 339             Password password;        // password for private_key
 340             RawBuffer message;
 341             int padding = 0, hash = 0;
 342             buffer.Deserialize(name, label, password, message, hash, padding);
 343             return m_logic->createSignature(
 344                   cred,
 345                   msgID,
 346                   name,
 347                   label,
 348                   password,           // password for private_key
 349                   message,
 350                   static_cast<HashAlgorithm>(hash),
 351                   static_cast<RSAPaddingAlgorithm>(padding));
 352         }
 353         case LogicCommand::VERIFY_SIGNATURE:
 354         {
 355             Password password;           // password for public_key (optional)
 356             RawBuffer message;
 357             RawBuffer signature;
 358             //HashAlgorithm hash;
 359             //RSAPaddingAlgorithm padding;
 360             int padding = 0, hash = 0;
 361             buffer.Deserialize(name,
 362                                label,
 363                                password,
 364                                message,
 365                                signature,
 366                                hash,
 367                                padding);
 368             return m_logic->verifySignature(
 369                 cred,
 370                 msgID,
 371                 name,
 372                 label,
 373                 password,           // password for public_key (optional)
 374                 message,
 375                 signature,
 376                 static_cast<const HashAlgorithm>(hash),
 377                 static_cast<const RSAPaddingAlgorithm>(padding));
 378         }
 379         case LogicCommand::SET_PERMISSION:
 380         {
 381             PermissionMask permissionMask = 0;
 382             buffer.Deserialize(name, label, accessorLabel, permissionMask);
 383             return m_logic->setPermission(
 384                 cred,
 385                 command,
 386                 msgID,
 387                 name,
 388                 label,
 389                 accessorLabel,
 390                 permissionMask);
 391         }
 392         default:
 393             Throw(Exception::BrokenProtocol);
 394     }
 395 }
 396
 397 void CKMService::ProcessMessage(MsgKeyRequest msg)
 398 {
 399     Crypto::GObjShPtr key;
 400     int ret = m_logic->getKeyForService(msg.cred,
 401                                         msg.name,
 402                                         msg.label,
 403                                         msg.password,
 404                                         key);
 405     MsgKeyResponse kResp(msg.id, key, ret);
 406     try {
 407         if (!m_commMgr->SendMessage(kResp))
 408             LogError("No listener found"); // can't do much more
 409     } catch (...) {
 410         LogError("Uncaught exception in SendMessage. Check listeners.");
 411     }
 412 }
 413
 414 void CKMService::CustomHandle(const ReadEvent &event) {
 415     LogDebug("Read event");
 416     auto &info = m_connectionInfoMap[event.connectionID.counter];
 417     info.buffer.Push(event.rawBuffer);
 418     while(ProcessOne(event.connectionID, info, true));
 419 }
 420
 421 void CKMService::CustomHandle(const SecurityEvent & /*event*/) {
 422     LogError("This should not happend! SecurityEvent was called on CKMService!");
 423 }
 424
 425 } // namespace CKM
 426