src/manager/service/ckm-service.cpp

   1 /*
   2  *  Copyright (c) 2000 - 2014 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 #include <service-thread.h>
  23 #include <generic-socket-manager.h>
  24 #include <connection-info.h>
  25 #include <message-buffer.h>
  26 #include <protocols.h>
  27
  28 #include <dpl/serialization.h>
  29 #include <dpl/log/log.h>
  30
  31 #include <ckm-service.h>
  32 #include <ckm-logic.h>
  33
  34 namespace {
  35 const CKM::InterfaceID SOCKET_ID_CONTROL = 0;
  36 const CKM::InterfaceID SOCKET_ID_STORAGE = 1;
  37 } // namespace anonymous
  38
  39 namespace CKM {
  40
  41 CKMService::CKMService()
  42   : m_logic(new CKMLogic)
  43 {}
  44
  45 CKMService::~CKMService() {
  46     delete m_logic;
  47 }
  48
  49 GenericSocketService::ServiceDescriptionVector CKMService::GetServiceDescription()
  50 {
  51     return ServiceDescriptionVector {
  52         {SERVICE_SOCKET_CKM_CONTROL, "key-manager::api-control", SOCKET_ID_CONTROL},
  53         {SERVICE_SOCKET_CKM_STORAGE, "key-manager::api-storage", SOCKET_ID_STORAGE}
  54     };
  55 }
  56
  57 void CKMService::accept(const AcceptEvent &event) {
  58     LogDebug("Accept event");
  59     auto &info = m_connectionInfoMap[event.connectionID.counter];
  60     info.interfaceID = event.interfaceID;
  61     info.credentials = event.credentials;
  62 }
  63
  64 void CKMService::write(const WriteEvent &event) {
  65     LogDebug("Write event (" << event.size << " bytes)");
  66 }
  67
  68 void CKMService::process(const ReadEvent &event) {
  69     LogDebug("Read event");
  70     auto &info = m_connectionInfoMap[event.connectionID.counter];
  71     info.buffer.Push(event.rawBuffer);
  72     while(processOne(event.connectionID, info));
  73 }
  74
  75 bool CKMService::processOne(
  76     const ConnectionID &conn,
  77     ConnectionInfo &info)
  78 {
  79     LogDebug ("process One");
  80     RawBuffer response;
  81
  82     Try {
  83         if (!info.buffer.Ready())
  84             return false;
  85
  86         if (info.interfaceID == SOCKET_ID_CONTROL)
  87             response = processControl(info.buffer);
  88         else
  89             response = processStorage(info.credentials, info.buffer);
  90
  91         m_serviceManager->Write(conn, response);
  92
  93         return true;
  94     } Catch (MessageBuffer::Exception::Base) {
  95         LogError("Broken protocol. Closing socket.");
  96     } Catch (Exception::BrokenProtocol) {
  97         LogError("Broken protocol. Closing socket.");
  98     } catch (const std::string &e) {
  99         LogError("String exception(" << e << "). Closing socket");
 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;
 110     int cc_mode_status;
 111     uid_t user;
 112     ControlCommand cc;
 113     Password newPass, oldPass;
 114     std::string smackLabel;
 115
 116     Deserialization::Deserialize(buffer, command);
 117
 118     LogDebug("Process control. Command: " << command);
 119
 120     cc = static_cast<ControlCommand>(command);
 121
 122     switch(cc) {
 123     case ControlCommand::UNLOCK_USER_KEY:
 124         Deserialization::Deserialize(buffer, user);
 125         Deserialization::Deserialize(buffer, newPass);
 126         return m_logic->unlockUserKey(user, newPass);
 127     case ControlCommand::LOCK_USER_KEY:
 128         Deserialization::Deserialize(buffer, user);
 129         return m_logic->lockUserKey(user);
 130     case ControlCommand::REMOVE_USER_DATA:
 131         Deserialization::Deserialize(buffer, user);
 132         return m_logic->removeUserData(user);
 133     case ControlCommand::CHANGE_USER_PASSWORD:
 134         Deserialization::Deserialize(buffer, user);
 135         Deserialization::Deserialize(buffer, oldPass);
 136         Deserialization::Deserialize(buffer, newPass);
 137         return m_logic->changeUserPassword(user, oldPass, newPass);
 138     case ControlCommand::RESET_USER_PASSWORD:
 139         Deserialization::Deserialize(buffer, user);
 140         Deserialization::Deserialize(buffer, newPass);
 141         return m_logic->resetUserPassword(user, newPass);
 142     case ControlCommand::REMOVE_APP_DATA:
 143         Deserialization::Deserialize(buffer, smackLabel);
 144         return m_logic->removeApplicationData(smackLabel);
 145     case ControlCommand::SET_CC_MODE:
 146         Deserialization::Deserialize(buffer, cc_mode_status);
 147         return m_logic->setCCModeStatus(static_cast<CCModeState>(cc_mode_status));
 148     case ControlCommand::ALLOW_ACCESS:
 149     {
 150         std::string owner;
 151         std::string item_alias;
 152         std::string accessor_label;
 153         int req_rights;
 154
 155         Deserialization::Deserialize(buffer, user);
 156         Deserialization::Deserialize(buffer, owner);
 157         Deserialization::Deserialize(buffer, item_alias);
 158         Deserialization::Deserialize(buffer, accessor_label);
 159         Deserialization::Deserialize(buffer, req_rights);
 160         Credentials cred =
 161             {
 162                 user,
 163                 owner
 164             };
 165         return m_logic->allowAccess(
 166             cred,
 167             command,
 168             0, // dummy
 169             item_alias,
 170             accessor_label,
 171             static_cast<AccessRight>(req_rights));
 172     }
 173     case ControlCommand::DENY_ACCESS:
 174     {
 175         std::string owner;
 176         std::string item_alias;
 177         std::string accessor_label;
 178
 179         Deserialization::Deserialize(buffer, user);
 180         Deserialization::Deserialize(buffer, owner);
 181         Deserialization::Deserialize(buffer, item_alias);
 182         Deserialization::Deserialize(buffer, accessor_label);
 183         Credentials cred =
 184             {
 185                 user,
 186                 owner
 187             };
 188         return m_logic->denyAccess(
 189             cred,
 190             command,
 191             0, // dummy
 192             item_alias,
 193             accessor_label);
 194     }
 195     default:
 196         Throw(Exception::BrokenProtocol);
 197     }
 198 }
 199
 200 RawBuffer CKMService::processStorage(Credentials &cred, MessageBuffer &buffer)
 201 {
 202     int command;
 203     int msgID;
 204     int tmpDataType;
 205     Alias alias;
 206     std::string user;
 207
 208     Deserialization::Deserialize(buffer, command);
 209     Deserialization::Deserialize(buffer, msgID);
 210
 211     // This is a workaround solution for locktype=None in Tizen 2.2.1
 212     // When locktype is None, lockscreen app doesn't interfere with unlocking process.
 213     // Therefor lockscreen app cannot notify unlock events to key-manager when locktype is None.
 214     // So, to unlock user data when lock type is None, key-manager always try to unlock user data with null password.
 215     // Even if the result is fail, it will be ignored.
 216     Password nullPassword("");
 217     m_logic->unlockUserKey(cred.uid, nullPassword);
 218
 219     LogDebug("Process storage. Command: " << command);
 220
 221     switch(static_cast<LogicCommand>(command)) {
 222         case LogicCommand::SAVE:
 223         {
 224             RawBuffer rawData;
 225             PolicySerializable policy;
 226             Deserialization::Deserialize(buffer, tmpDataType);
 227             Deserialization::Deserialize(buffer, alias);
 228             Deserialization::Deserialize(buffer, rawData);
 229             Deserialization::Deserialize(buffer, policy);
 230             return m_logic->saveData(
 231                 cred,
 232                 msgID,
 233                 static_cast<DBDataType>(tmpDataType),
 234                 alias,
 235                 rawData,
 236                 policy);
 237         }
 238         case LogicCommand::REMOVE:
 239         {
 240             Deserialization::Deserialize(buffer, tmpDataType);
 241             Deserialization::Deserialize(buffer, alias);
 242             return m_logic->removeData(
 243                 cred,
 244                 msgID,
 245                 static_cast<DBDataType>(tmpDataType),
 246                 alias);
 247         }
 248         case LogicCommand::GET:
 249         {
 250             Password password;
 251             Deserialization::Deserialize(buffer, tmpDataType);
 252             Deserialization::Deserialize(buffer, alias);
 253             Deserialization::Deserialize(buffer, password);
 254             return m_logic->getData(
 255                 cred,
 256                 msgID,
 257                 static_cast<DBDataType>(tmpDataType),
 258                 alias,
 259                 password);
 260         }
 261         case LogicCommand::GET_LIST:
 262         {
 263             Deserialization::Deserialize(buffer, tmpDataType);
 264             return m_logic->getDataList(
 265                 cred,
 266                 msgID,
 267                 static_cast<DBDataType>(tmpDataType));
 268         }
 269         case LogicCommand::CREATE_KEY_PAIR_RSA:
 270         case LogicCommand::CREATE_KEY_PAIR_DSA:
 271         case LogicCommand::CREATE_KEY_PAIR_ECDSA:
 272         {
 273             int additional_param;
 274             Alias privateKeyAlias;
 275             Alias publicKeyAlias;
 276             PolicySerializable policyPrivateKey;
 277             PolicySerializable policyPublicKey;
 278             Deserialization::Deserialize(buffer, additional_param);
 279             Deserialization::Deserialize(buffer, policyPrivateKey);
 280             Deserialization::Deserialize(buffer, policyPublicKey);
 281             Deserialization::Deserialize(buffer, privateKeyAlias);
 282             Deserialization::Deserialize(buffer, publicKeyAlias);
 283             return m_logic->createKeyPair(
 284                 cred,
 285                 static_cast<LogicCommand>(command),
 286                 msgID,
 287                 additional_param,
 288                 privateKeyAlias,
 289                 publicKeyAlias,
 290                 policyPrivateKey,
 291                 policyPublicKey);
 292         }
 293         case LogicCommand::GET_CHAIN_CERT:
 294         {
 295             RawBuffer certificate;
 296             RawBufferVector rawBufferVector;
 297             Deserialization::Deserialize(buffer, certificate);
 298             Deserialization::Deserialize(buffer, rawBufferVector);
 299             return m_logic->getCertificateChain(
 300                 cred,
 301                 msgID,
 302                 certificate,
 303                 rawBufferVector);
 304         }
 305         case LogicCommand::GET_CHAIN_ALIAS:
 306         {
 307             RawBuffer certificate;
 308             AliasVector aliasVector;
 309             Deserialization::Deserialize(buffer, certificate);
 310             Deserialization::Deserialize(buffer, aliasVector);
 311             return m_logic->getCertificateChain(
 312                 cred,
 313                 msgID,
 314                 certificate,
 315                 aliasVector);
 316         }
 317         case LogicCommand::CREATE_SIGNATURE:
 318         {
 319             Alias privateKeyAlias;
 320             Password password;        // password for private_key
 321             RawBuffer message;
 322             int padding, hash;
 323             Deserialization::Deserialize(buffer, privateKeyAlias);
 324             Deserialization::Deserialize(buffer, password);
 325             Deserialization::Deserialize(buffer, message);
 326             Deserialization::Deserialize(buffer, hash);
 327             Deserialization::Deserialize(buffer, padding);
 328
 329             return m_logic->createSignature(
 330                   cred,
 331                   msgID,
 332                   privateKeyAlias,
 333                   password,           // password for private_key
 334                   message,
 335                   static_cast<HashAlgorithm>(hash),
 336                   static_cast<RSAPaddingAlgorithm>(padding));
 337         }
 338         case LogicCommand::VERIFY_SIGNATURE:
 339         {
 340             Alias publicKeyOrCertAlias;
 341             Password password;           // password for public_key (optional)
 342             RawBuffer message;
 343             RawBuffer signature;
 344             //HashAlgorithm hash;
 345             //RSAPaddingAlgorithm padding;
 346             int padding, hash;
 347             Deserialization::Deserialize(buffer, publicKeyOrCertAlias);
 348             Deserialization::Deserialize(buffer, password);
 349             Deserialization::Deserialize(buffer, message);
 350             Deserialization::Deserialize(buffer, signature);
 351             Deserialization::Deserialize(buffer, hash);
 352             Deserialization::Deserialize(buffer, padding);
 353             return m_logic->verifySignature(
 354                 cred,
 355                 msgID,
 356                 publicKeyOrCertAlias,
 357                 password,           // password for public_key (optional)
 358                 message,
 359                 signature,
 360                 static_cast<const HashAlgorithm>(hash),
 361                 static_cast<const RSAPaddingAlgorithm>(padding));
 362         }
 363         case LogicCommand::ALLOW_ACCESS:
 364         {
 365             Alias item_alias;
 366             std::string accessor_label;
 367             int req_rights;
 368             Deserialization::Deserialize(buffer, item_alias);
 369             Deserialization::Deserialize(buffer, accessor_label);
 370             Deserialization::Deserialize(buffer, req_rights);
 371             return m_logic->allowAccess(
 372                 cred,
 373                 command,
 374                 msgID,
 375                 item_alias,
 376                 accessor_label,
 377                 static_cast<AccessRight>(req_rights));
 378         }
 379         case LogicCommand::DENY_ACCESS:
 380         {
 381             Alias item_alias;
 382             std::string accessor_label;
 383             Deserialization::Deserialize(buffer, item_alias);
 384             Deserialization::Deserialize(buffer, accessor_label);
 385             return m_logic->denyAccess(
 386                 cred,
 387                 command,
 388                 msgID,
 389                 item_alias,
 390                 accessor_label);
 391         }
 392         default:
 393             Throw(Exception::BrokenProtocol);
 394     }
 395 }
 396
 397
 398 void CKMService::close(const CloseEvent &event) {
 399     LogDebug("Close event");
 400     m_connectionInfoMap.erase(event.connectionID.counter);
 401 }
 402
 403 } // namespace CKM
 404