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 = 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 ownerLabel;
 146         Label accessorLabel;
 147         int accessorPermissions = 0;
 148
 149         buffer.Deserialize(user, ownerLabel, name, accessorLabel, accessorPermissions);
 150         Credentials cred = { user, ownerLabel };
 151         return m_logic->setPermission(
 152             cred,
 153             command,
 154             0, // dummy
 155             name,
 156             accessorLabel,
 157             static_cast<Permission>(accessorPermissions));
 158     }
 159     default:
 160         Throw(Exception::BrokenProtocol);
 161     }
 162 }
 163
 164 RawBuffer CKMService::processStorage(Credentials &cred, MessageBuffer &buffer)
 165 {
 166     int command = 0;
 167     int msgID = 0;
 168     int tmpDataType = 0;
 169     Name name;
 170     Label label;
 171     std::string user;
 172
 173     buffer.Deserialize(command);
 174     buffer.Deserialize(msgID);
 175
 176     // This is a workaround solution for locktype=None in Tizen 2.2.1
 177     // When locktype is None, lockscreen app doesn't interfere with unlocking process.
 178     // Therefor lockscreen app cannot notify unlock events to key-manager when locktype is None.
 179     // So, to unlock user data when lock type is None, key-manager always try to unlock user data with null password.
 180     // Even if the result is fail, it will be ignored.
 181     Password nullPassword("");
 182     m_logic->unlockUserKey(cred.uid, nullPassword);
 183
 184     LogDebug("Process storage. Command: " << command);
 185
 186     switch(static_cast<LogicCommand>(command)) {
 187         case LogicCommand::SAVE:
 188         {
 189             RawBuffer rawData;
 190             PolicySerializable policy;
 191             buffer.Deserialize(tmpDataType, name, label, rawData, policy);
 192             return m_logic->saveData(
 193                 cred,
 194                 msgID,
 195                 static_cast<DBDataType>(tmpDataType),
 196                 name,
 197                 label,
 198                 rawData,
 199                 policy);
 200         }
 201         case LogicCommand::REMOVE:
 202         {
 203             buffer.Deserialize(tmpDataType, name, label);
 204             return m_logic->removeData(
 205                 cred,
 206                 msgID,
 207                 static_cast<DBDataType>(tmpDataType),
 208                 name,
 209                 label);
 210         }
 211         case LogicCommand::GET:
 212         {
 213             Password password;
 214             buffer.Deserialize(tmpDataType, name, label, password);
 215             return m_logic->getData(
 216                 cred,
 217                 msgID,
 218                 static_cast<DBDataType>(tmpDataType),
 219                 name,
 220                 label,
 221                 password);
 222         }
 223         case LogicCommand::GET_LIST:
 224         {
 225             buffer.Deserialize(tmpDataType);
 226             return m_logic->getDataList(
 227                 cred,
 228                 msgID,
 229                 static_cast<DBDataType>(tmpDataType));
 230         }
 231         case LogicCommand::CREATE_KEY_PAIR_RSA:
 232         case LogicCommand::CREATE_KEY_PAIR_DSA:
 233         case LogicCommand::CREATE_KEY_PAIR_ECDSA:
 234         {
 235             int additional_param = 0;
 236             Name privateKeyName;
 237             Name publicKeyName;
 238             PolicySerializable policyPrivateKey;
 239             PolicySerializable policyPublicKey;
 240             buffer.Deserialize(additional_param,
 241                                policyPrivateKey,
 242                                policyPublicKey,
 243                                privateKeyName,
 244                                publicKeyName);
 245             return m_logic->createKeyPair(
 246                 cred,
 247                 static_cast<LogicCommand>(command),
 248                 msgID,
 249                 additional_param,
 250                 privateKeyName,
 251                 publicKeyName,
 252                 policyPrivateKey,
 253                 policyPublicKey);
 254         }
 255         case LogicCommand::GET_CHAIN_CERT:
 256         {
 257             RawBuffer certificate;
 258             RawBufferVector rawBufferVector;
 259             buffer.Deserialize(certificate, rawBufferVector);
 260             return m_logic->getCertificateChain(
 261                 cred,
 262                 msgID,
 263                 certificate,
 264                 rawBufferVector);
 265         }
 266         case LogicCommand::GET_CHAIN_ALIAS:
 267         {
 268             RawBuffer certificate;
 269             LabelNameVector untrusted_certs;
 270             buffer.Deserialize(certificate, untrusted_certs);
 271             return m_logic->getCertificateChain(
 272                 cred,
 273                 msgID,
 274                 certificate,
 275                 untrusted_certs);
 276         }
 277         case LogicCommand::CREATE_SIGNATURE:
 278         {
 279             Password password;        // password for private_key
 280             RawBuffer message;
 281             int padding = 0, hash = 0;
 282             buffer.Deserialize(name, label, password, message, hash, padding);
 283             return m_logic->createSignature(
 284                   cred,
 285                   msgID,
 286                   name,
 287                   label,
 288                   password,           // password for private_key
 289                   message,
 290                   static_cast<HashAlgorithm>(hash),
 291                   static_cast<RSAPaddingAlgorithm>(padding));
 292         }
 293         case LogicCommand::VERIFY_SIGNATURE:
 294         {
 295             Password password;           // password for public_key (optional)
 296             RawBuffer message;
 297             RawBuffer signature;
 298             //HashAlgorithm hash;
 299             //RSAPaddingAlgorithm padding;
 300             int padding = 0, hash = 0;
 301             buffer.Deserialize(name,
 302                                label,
 303                                password,
 304                                message,
 305                                signature,
 306                                hash,
 307                                padding);
 308             return m_logic->verifySignature(
 309                 cred,
 310                 msgID,
 311                 name,
 312                 label,
 313                 password,           // password for public_key (optional)
 314                 message,
 315                 signature,
 316                 static_cast<const HashAlgorithm>(hash),
 317                 static_cast<const RSAPaddingAlgorithm>(padding));
 318         }
 319         case LogicCommand::SET_PERMISSION:
 320         {
 321             int accessorPermissions = 0;
 322             buffer.Deserialize(name, label, accessorPermissions);
 323             return m_logic->setPermission(
 324                 cred,
 325                 command,
 326                 msgID,
 327                 name,
 328                 label,
 329                 static_cast<Permission>(accessorPermissions));
 330         }
 331         default:
 332             Throw(Exception::BrokenProtocol);
 333     }
 334 }
 335
 336
 337 void CKMService::close(const CloseEvent &event) {
 338     LogDebug("Close event");
 339     m_connectionInfoMap.erase(event.connectionID.counter);
 340 }
 341
 342 } // namespace CKM
 343