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 DBDataType::Exception::Base &e) {
  99         LogError("Closing socket. DBDataType::Exception: " << e.DumpToString());
 100     } catch (const std::string &e) {
 101         LogError("String exception(" << e << "). Closing socket");
 102     } catch (const std::exception &e) {
 103         LogError("Std exception:: " << e.what());
 104     } catch (...) {
 105         LogError("Unknown exception. Closing socket.");
 106     }
 107
 108     m_serviceManager->Close(conn);
 109     return false;
 110 }
 111
 112 RawBuffer CKMService::processControl(MessageBuffer &buffer) {
 113     int command = 0;
 114     uid_t user = 0;
 115     ControlCommand cc;
 116     Password newPass, oldPass;
 117     Label smackLabel;
 118
 119     buffer.Deserialize(command);
 120
 121     LogDebug("Process control. Command: " << command);
 122
 123     cc = static_cast<ControlCommand>(command);
 124
 125     switch(cc) {
 126     case ControlCommand::UNLOCK_USER_KEY:
 127         buffer.Deserialize(user, newPass);
 128         return m_logic->unlockUserKey(user, newPass);
 129     case ControlCommand::LOCK_USER_KEY:
 130         buffer.Deserialize(user);
 131         return m_logic->lockUserKey(user);
 132     case ControlCommand::REMOVE_USER_DATA:
 133         buffer.Deserialize(user);
 134         return m_logic->removeUserData(user);
 135     case ControlCommand::CHANGE_USER_PASSWORD:
 136         buffer.Deserialize(user, oldPass, newPass);
 137         return m_logic->changeUserPassword(user, oldPass, newPass);
 138     case ControlCommand::RESET_USER_PASSWORD:
 139         buffer.Deserialize(user, newPass);
 140         return m_logic->resetUserPassword(user, newPass);
 141     case ControlCommand::REMOVE_APP_DATA:
 142         buffer.Deserialize(smackLabel);
 143         return m_logic->removeApplicationData(smackLabel);
 144     case ControlCommand::UPDATE_CC_MODE:
 145         return m_logic->updateCCMode();
 146     case ControlCommand::SET_PERMISSION:
 147     {
 148         Name name;
 149         Label label;
 150         Label accessorLabel;
 151         int accessorPermissions = 0;
 152
 153         buffer.Deserialize(user, name, label, accessorLabel, accessorPermissions);
 154         Credentials cred = { user, label };
 155         return m_logic->setPermission(
 156             cred,
 157             command,
 158             0, // dummy
 159             name,
 160             label,
 161             accessorLabel,
 162             static_cast<Permission>(accessorPermissions));
 163     }
 164     default:
 165         Throw(Exception::BrokenProtocol);
 166     }
 167 }
 168
 169 RawBuffer CKMService::processStorage(Credentials &cred, MessageBuffer &buffer)
 170 {
 171     int command = 0;
 172     int msgID = 0;
 173     int tmpDataType = 0;
 174     Name name;
 175     Label label, accessorLabel;
 176     std::string user;
 177
 178     buffer.Deserialize(command);
 179     buffer.Deserialize(msgID);
 180
 181     // This is a workaround solution for locktype=None in Tizen 2.2.1
 182     // When locktype is None, lockscreen app doesn't interfere with unlocking process.
 183     // Therefor lockscreen app cannot notify unlock events to key-manager when locktype is None.
 184     // So, to unlock user data when lock type is None, key-manager always try to unlock user data with null password.
 185     // Even if the result is fail, it will be ignored.
 186     Password nullPassword("");
 187     m_logic->unlockUserKey(cred.uid, nullPassword);
 188
 189     LogDebug("Process storage. Command: " << command);
 190
 191     switch(static_cast<LogicCommand>(command)) {
 192         case LogicCommand::SAVE:
 193         {
 194             RawBuffer rawData;
 195             PolicySerializable policy;
 196             buffer.Deserialize(tmpDataType, name, label, rawData, policy);
 197             return m_logic->saveData(
 198                 cred,
 199                 msgID,
 200                 DBDataType(tmpDataType),
 201                 name,
 202                 label,
 203                 rawData,
 204                 policy);
 205         }
 206         case LogicCommand::REMOVE:
 207         {
 208             buffer.Deserialize(name, label);
 209             return m_logic->removeData(
 210                 cred,
 211                 msgID,
 212                 name,
 213                 label);
 214         }
 215         case LogicCommand::GET:
 216         {
 217             Password password;
 218             buffer.Deserialize(tmpDataType, name, label, password);
 219             return m_logic->getData(
 220                 cred,
 221                 msgID,
 222                 DBDataType(tmpDataType),
 223                 name,
 224                 label,
 225                 password);
 226         }
 227         case LogicCommand::GET_LIST:
 228         {
 229             buffer.Deserialize(tmpDataType);
 230             return m_logic->getDataList(
 231                 cred,
 232                 msgID,
 233                 DBDataType(tmpDataType));
 234         }
 235         case LogicCommand::CREATE_KEY_PAIR_RSA:
 236         case LogicCommand::CREATE_KEY_PAIR_DSA:
 237         case LogicCommand::CREATE_KEY_PAIR_ECDSA:
 238         {
 239             int additional_param = 0;
 240             Name privateKeyName;
 241             Label privateKeyLabel;
 242             Name publicKeyName;
 243             Label publicKeyLabel;
 244             PolicySerializable policyPrivateKey;
 245             PolicySerializable policyPublicKey;
 246             buffer.Deserialize(additional_param,
 247                                policyPrivateKey,
 248                                policyPublicKey,
 249                                privateKeyName,
 250                                privateKeyLabel,
 251                                publicKeyName,
 252                                publicKeyLabel);
 253             return m_logic->createKeyPair(
 254                 cred,
 255                 static_cast<LogicCommand>(command),
 256                 msgID,
 257                 additional_param,
 258                 privateKeyName,
 259                 privateKeyLabel,
 260                 publicKeyName,
 261                 publicKeyLabel,
 262                 policyPrivateKey,
 263                 policyPublicKey);
 264         }
 265         case LogicCommand::GET_CHAIN_CERT:
 266         {
 267             RawBuffer certificate;
 268             RawBufferVector rawBufferVector;
 269             buffer.Deserialize(certificate, rawBufferVector);
 270             return m_logic->getCertificateChain(
 271                 cred,
 272                 msgID,
 273                 certificate,
 274                 rawBufferVector);
 275         }
 276         case LogicCommand::GET_CHAIN_ALIAS:
 277         {
 278             RawBuffer certificate;
 279             LabelNameVector untrusted_certs;
 280             buffer.Deserialize(certificate, untrusted_certs);
 281             return m_logic->getCertificateChain(
 282                 cred,
 283                 msgID,
 284                 certificate,
 285                 untrusted_certs);
 286         }
 287         case LogicCommand::CREATE_SIGNATURE:
 288         {
 289             Password password;        // password for private_key
 290             RawBuffer message;
 291             int padding = 0, hash = 0;
 292             buffer.Deserialize(name, label, password, message, hash, padding);
 293             return m_logic->createSignature(
 294                   cred,
 295                   msgID,
 296                   name,
 297                   label,
 298                   password,           // password for private_key
 299                   message,
 300                   static_cast<HashAlgorithm>(hash),
 301                   static_cast<RSAPaddingAlgorithm>(padding));
 302         }
 303         case LogicCommand::VERIFY_SIGNATURE:
 304         {
 305             Password password;           // password for public_key (optional)
 306             RawBuffer message;
 307             RawBuffer signature;
 308             //HashAlgorithm hash;
 309             //RSAPaddingAlgorithm padding;
 310             int padding = 0, hash = 0;
 311             buffer.Deserialize(name,
 312                                label,
 313                                password,
 314                                message,
 315                                signature,
 316                                hash,
 317                                padding);
 318             return m_logic->verifySignature(
 319                 cred,
 320                 msgID,
 321                 name,
 322                 label,
 323                 password,           // password for public_key (optional)
 324                 message,
 325                 signature,
 326                 static_cast<const HashAlgorithm>(hash),
 327                 static_cast<const RSAPaddingAlgorithm>(padding));
 328         }
 329         case LogicCommand::SET_PERMISSION:
 330         {
 331             int accessorPermissions = 0;
 332             buffer.Deserialize(name, label, accessorLabel, accessorPermissions);
 333             return m_logic->setPermission(
 334                 cred,
 335                 command,
 336                 msgID,
 337                 name,
 338                 label,
 339                 accessorLabel,
 340                 static_cast<Permission>(accessorPermissions));
 341         }
 342         default:
 343             Throw(Exception::BrokenProtocol);
 344     }
 345 }
 346
 347
 348 void CKMService::close(const CloseEvent &event) {
 349     LogDebug("Close event");
 350     m_connectionInfoMap.erase(event.connectionID.counter);
 351 }
 352
 353 } // namespace CKM
 354