src/persistence_client_library_dbus_cmd.c

   1 /******************************************************************************
   2  * Project         Persistency
   3  * (c) copyright   2012
   4  * Company         XS Embedded GmbH
   5  *****************************************************************************/
   6 /******************************************************************************
   7  * This Source Code Form is subject to the terms of the
   8  * Mozilla Public License, v. 2.0. If a  copy of the MPL was not distributed
   9  * with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
  10 ******************************************************************************/
  11  /**
  12  * @file           persistence_client_library_dbus_cmd.c
  13  * @ingroup        Persistence client library
  14  * @author         Ingo Huerner
  15  * @brief          Implementation of the persistence client library dbus commands.
  16  * @see
  17  */
  18
  19 #include "persistence_client_library_dbus_cmd.h"
  20
  21 #include "persistence_client_library_handle.h"
  22 #include "persistence_client_library_itzam_errors.h"
  23 #include "persistence_client_library_custom_loader.h"
  24 #include "persistence_client_library_prct_access.h"
  25
  26 #include "../include_protected/persistence_client_library_data_organization.h"
  27 #include "../include_protected/persistence_client_library_db_access.h"
  28
  29 #include <itzam.h>
  30
  31
  32 // function prototype
  33 void msg_pending_func(DBusPendingCall *call, void *data);
  34
  35
  36
  37 void process_reg_notification_signal(DBusConnection* conn)
  38 {
  39    char ruleChanged[DbusMatchRuleSize] = {0};
  40    char ruleDeleted[DbusMatchRuleSize] = {0};
  41    char ruleCreated[DbusMatchRuleSize] = {0};
  42
  43    // add match for  c h a n g e
  44    snprintf(ruleChanged, DbusMatchRuleSize,
  45             "type='signal',interface='org.genivi.persistence.adminconsumer',member='PersistenceResChange',path='/org/genivi/persistence/adminconsumer',arg0='%s',arg1='%u',arg2='%u',arg3='%u'",
  46             gNotifykey, gNotifyLdbid, gNotifyUserNo, gNotifySeatNo);
  47
  48    // add match for  d e l e t e
  49    snprintf(ruleDeleted, DbusMatchRuleSize,
  50             "type='signal',interface='org.genivi.persistence.adminconsumer',member='PersistenceResDelete',path='/org/genivi/persistence/adminconsumer',arg0='%s',arg1='%u',arg2='%u',arg3='%u'",
  51             gNotifykey, gNotifyLdbid, gNotifyUserNo, gNotifySeatNo);
  52
  53    // add match for  c r e a t e
  54    snprintf(ruleCreated, DbusMatchRuleSize,
  55             "type='signal',interface='org.genivi.persistence.adminconsumer',member='PersistenceResCreate',path='/org/genivi/persistence/adminconsumer',arg0='%s',arg1='%u',arg2='%u',arg3='%u'",
  56             gNotifykey, gNotifyLdbid, gNotifyUserNo, gNotifySeatNo);
  57
  58    if(gNotifyPolicy == Notify_register)
  59    {
  60       dbus_bus_add_match(conn, ruleChanged, NULL);
  61       dbus_bus_add_match(conn, ruleDeleted, NULL);
  62       dbus_bus_add_match(conn, ruleCreated, NULL);
  63    }
  64    else if(gNotifyPolicy == Notify_unregister)
  65    {
  66       dbus_bus_remove_match(conn, ruleChanged, NULL);
  67       dbus_bus_remove_match(conn, ruleDeleted, NULL);
  68       dbus_bus_remove_match(conn, ruleCreated, NULL);
  69    }
  70
  71    dbus_connection_flush(conn);  // flush the connection to add the match
  72 }
  73
  74
  75
  76 void process_send_notification_signal(DBusConnection* conn)
  77 {
  78    dbus_bool_t ret;
  79    DBusMessage* message;
  80    const char* notifyReason = NULL;
  81
  82    char ldbidArray[DbusSubMatchSize] = {0};
  83    char userArray[DbusSubMatchSize]  = {0};
  84    char seatArray[DbusSubMatchSize]  = {0};
  85    char* pldbidArra = ldbidArray;
  86    char* puserArray = userArray;
  87    char* pseatArray = seatArray;
  88    char* pnotifyKey = gNotifykey;
  89
  90    switch(gNotifyReason)
  91    {
  92       case pclNotifyStatus_deleted:
  93          notifyReason = gDeleteSignal;
  94          break;
  95       case  pclNotifyStatus_created:
  96          notifyReason = gCreateSignal;
  97          break;
  98       case pclNotifyStatus_changed:
  99          notifyReason = gChangeSignal;
 100          break;
 101       default:
 102          notifyReason = NULL;
 103          break;
 104    }
 105
 106    if(notifyReason != NULL)
 107    {
 108       // dbus_bus_add_match is used for the notification mechanism,
 109       // and this works only for type DBUS_TYPE_STRING as message arguments
 110       // this is the reason to use string instead of integer types directly
 111       snprintf(ldbidArray, DbusSubMatchSize, "%u", gNotifyLdbid);
 112       snprintf(userArray,  DbusSubMatchSize, "%u", gNotifyUserNo);
 113       snprintf(seatArray,  DbusSubMatchSize, "%u", gNotifySeatNo);
 114
 115       //printf("process_send_Notification_Signal => key: %s | lbid: %d | gUserNo: %d | gSeatNo: %d | gReason: %d \n", gNotifykey, gLdbid, gUserNo, gSeatNo, gReason);
 116       message = dbus_message_new_signal("/org/genivi/persistence/adminconsumer",    // const char *path,
 117                                         "org.genivi.persistence.adminconsumer",     // const char *interface,
 118                                         notifyReason);                                 // const char *name
 119
 120       ret = dbus_message_append_args(message, DBUS_TYPE_STRING, &pnotifyKey,
 121                                               DBUS_TYPE_STRING, &pldbidArra,
 122                                               DBUS_TYPE_STRING, &puserArray,
 123                                               DBUS_TYPE_STRING, &pseatArray,
 124                                               DBUS_TYPE_INVALID);
 125       if(ret == TRUE)
 126       {
 127          // Send the signal
 128          if(conn != NULL)
 129          {
 130             if(dbus_connection_send(conn, message, 0) == TRUE)
 131             {
 132                // Free the signal now we have finished with it
 133                dbus_message_unref(message);
 134             }
 135             else
 136             {
 137                DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_Notification_Signal ==> failed to send dbus message!!"));
 138             }
 139          }
 140          else
 141          {
 142             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_Notification_Signal ==> E R R O R  C O N E C T I O N  NULL!!"));
 143          }
 144       }
 145       else
 146       {
 147          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_Notification_Signal ==> ERROR dbus_message_append_args"));
 148       }
 149    }
 150    else
 151    {
 152       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_Notification_Signal ==> ERROR invalid notification reason"));
 153    }
 154 }
 155
 156
 157
 158 void process_block_and_write_data_back(unsigned int requestID, unsigned int status)
 159 {
 160    // lock persistence data access
 161    pers_lock_access();
 162    // sync data back to memory device
 163    pers_data_sync();
 164    // send complete notification
 165    pers_admin_service_data_sync_complete(requestID, status);
 166 }
 167
 168
 169
 170 void process_prepare_shutdown(unsigned char requestId, unsigned int status)
 171 {
 172    int i = 0;
 173    itzam_btree* resourceTable = NULL;
 174    itzam_state  state = ITZAM_FAILED;
 175
 176    // block write
 177    pers_lock_access();
 178
 179    // flush open files to disk
 180    for(i=0; i<MaxPersHandle; i++)
 181    {
 182       int tmp = i;
 183       if(gOpenFdArray[tmp] == FileOpen)
 184       {
 185          fsync(tmp);
 186          close(tmp);
 187       }
 188    }
 189
 190    // close open gvdb persistence resource configuration table
 191    for(i=0; i< PrctDbTableSize; i++)
 192    {
 193      resourceTable = get_resource_cfg_table_by_idx(i);
 194      // dereference opend database
 195      if(resourceTable != NULL &&  get_resource_cfg_table_status(i) == 1)
 196      {
 197         state = itzam_btree_close(resourceTable);
 198         invalidate_resource_cfg_table(i);
 199         if (state != ITZAM_OKAY)
 200         {
 201            DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_prepare_shutdown => itzam_btree_close: Itzam problem"), DLT_STRING(STATE_MESSAGES[state]));
 202         }
 203      }
 204    }
 205
 206    //close opend database
 207    pers_db_close_all();
 208
 209
 210    // unload custom client libraries
 211    for(i=0; i<PersCustomLib_LastEntry; i++)
 212    {
 213       if(gPersCustomFuncs[i].custom_plugin_deinit != NULL)
 214       {
 215          // deinitialize plugin
 216          gPersCustomFuncs[i].custom_plugin_deinit();
 217          // close library handle
 218          dlclose(gPersCustomFuncs[i].handle);
 219
 220          gPersCustomFuncs[i].custom_plugin_deinit = NULL;
 221       }
 222    }
 223
 224    // notify lifecycle shutdown OK
 225    send_prepare_shutdown_complete((int)requestId, (int)status);
 226 }
 227
 228
 229
 230 void process_send_pas_request(DBusConnection* conn, unsigned int requestID, int status)
 231 {
 232    DBusError error;
 233    DBusPendingCall* pending = NULL;
 234    dbus_error_init (&error);
 235    int rval = 0;
 236
 237    DBusMessage* message = dbus_message_new_method_call("org.genivi.persistence.admin",       // destination
 238                                                       "/org/genivi/persistence/admin",       // path
 239                                                        "org.genivi.persistence.admin",       // interface
 240                                                        "PersistenceAdminRequestCompleted");  // method
 241    if(message != NULL)
 242    {
 243       dbus_message_append_args(message, DBUS_TYPE_UINT32, &requestID,
 244                                         DBUS_TYPE_INT32,  &status,
 245                                         DBUS_TYPE_INVALID);
 246
 247       if(conn != NULL)
 248       {
 249          //replyMsg = dbus_connection_send_with_reply_and_block(conn, message, gTimeoutMs, &error);
 250          dbus_connection_send_with_reply(conn,        //    the connection
 251                                          message,       // the message to write
 252                                          &pending,      // pending
 253                                          gTimeoutMs);   // timeout in milliseconds or -1 for default
 254
 255          dbus_connection_flush(conn);
 256
 257          if(!dbus_pending_call_set_notify(pending, msg_pending_func, "PersistenceAdminRequestCompleted", NULL))
 258          {
 259             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_pas_request => dbus_pending_call_set_notify: FAILED\n"));
 260          }
 261          dbus_pending_call_unref(pending);
 262       }
 263       else
 264       {
 265          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_request => ERROR: Invalid connection") );
 266       }
 267       dbus_message_unref(message);
 268    }
 269    else
 270    {
 271       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_request => ERROR: Invalid message") );
 272    }
 273 }
 274
 275
 276 void process_send_pas_register(DBusConnection* conn, int regType, int notificationFlag)
 277 {
 278    DBusError error;
 279    dbus_error_init (&error);
 280    DBusPendingCall* pending = NULL;
 281
 282    char* method = NULL;
 283
 284    if(regType == 0)
 285       method = "UnRegisterPersAdminNotification";
 286    else if(regType == 1)
 287       method = "RegisterPersAdminNotification";
 288
 289    if(conn != NULL)
 290    {
 291       const char* objName = "/org/genivi/persistence/adminconsumer";
 292       const char* busName = dbus_bus_get_unique_name(conn);
 293
 294       if(busName != NULL)
 295       {
 296          DBusMessage* message = dbus_message_new_method_call("org.genivi.persistence.admin",    // destination
 297                                                             "/org/genivi/persistence/admin",    // path
 298                                                              "org.genivi.persistence.admin",    // interface
 299                                                              method);                           // method
 300
 301          if(message != NULL)
 302          {
 303             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,  // bus name
 304                                               DBUS_TYPE_STRING, &objName,
 305                                               DBUS_TYPE_INT32,  &notificationFlag,
 306                                               DBUS_TYPE_UINT32, &gTimeoutMs,
 307                                               DBUS_TYPE_INVALID);
 308
 309             dbus_connection_send_with_reply(conn,           //    the connection
 310                                             message,        // the message to write
 311                                             &pending,       // pending
 312                                             gTimeoutMs);    // timeout in milliseconds or -1 for default
 313
 314             dbus_connection_flush(conn);
 315
 316             if(!dbus_pending_call_set_notify(pending, msg_pending_func, method, NULL))
 317             {
 318                printf("process_send_pas_register => dbus_pending_call_set_notify: FAILED\n");
 319             }
 320             dbus_pending_call_unref(pending);
 321          }
 322          else
 323          {
 324             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid message") );
 325          }
 326          dbus_message_unref(message);
 327       }
 328       else
 329       {
 330          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid busname") );
 331       }
 332    }
 333    else
 334    {
 335       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid connection") );
 336    }
 337 }
 338
 339
 340 void process_send_lifecycle_register(DBusConnection* conn, int regType, int shutdownMode)
 341 {
 342    int rval = 0;
 343
 344    DBusError error;
 345    dbus_error_init (&error);
 346
 347    char* method = NULL;
 348
 349    if(regType == 1)
 350       method = "RegisterShutdownClient";
 351    else if(regType == 0)
 352       method = "UnRegisterShutdownClient";
 353
 354    if(conn != NULL)
 355    {
 356       const char* objName = "/org/genivi/NodeStateManager/LifeCycleConsumer";
 357       const char* busName = dbus_bus_get_unique_name(conn);
 358
 359       DBusMessage* message = dbus_message_new_method_call("org.genivi.NodeStateManager",           // destination
 360                                                           "/org/genivi/NodeStateManager/Consumer", // path
 361                                                           "org.genivi.NodeStateManager.Consumer",  // interface
 362                                                           method);                                 // method
 363       if(message != NULL)
 364       {
 365          if(regType == 1)   // register
 366          {
 367             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,
 368                                               DBUS_TYPE_STRING, &objName,
 369                                               DBUS_TYPE_UINT32, &shutdownMode,
 370                                               DBUS_TYPE_UINT32, &gTimeoutMs, DBUS_TYPE_INVALID);
 371          }
 372          else           // unregister
 373          {
 374             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,
 375                                               DBUS_TYPE_STRING, &objName,
 376                                               DBUS_TYPE_UINT32, &shutdownMode, DBUS_TYPE_INVALID);
 377          }
 378
 379                  if(!dbus_connection_send(conn, message, 0))
 380                  {
 381                     DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => Access denied"), DLT_STRING(error.message) );
 382                     rval = -1;
 383                  }
 384                  dbus_connection_flush(conn);
 385          dbus_message_unref(message);
 386       }
 387       else
 388       {
 389          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => ERROR: Invalid message"));
 390       }
 391    }
 392    else
 393    {
 394       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => ERROR: connection isn NULL"));
 395    }
 396 }
 397
 398
 399
 400 void process_send_lifecycle_request(DBusConnection* conn, int requestId, int status)
 401 {
 402    int rval = 0;
 403    DBusError error;
 404    dbus_error_init (&error);
 405
 406    if(conn != NULL)
 407    {
 408       DBusMessage* message = dbus_message_new_method_call("org.genivi.NodeStateManager",           // destination
 409                                                          "/org/genivi/NodeStateManager/Consumer",  // path
 410                                                           "org.genivi.NodeStateManager.Consumer",  // interface
 411                                                           "LifecycleRequestComplete");             // method
 412       if(message != NULL)
 413       {
 414          dbus_message_append_args(message, DBUS_TYPE_INT32, &requestId,
 415                                            DBUS_TYPE_INT32, &status,
 416                                            DBUS_TYPE_INVALID);
 417
 418
 419                  if(!dbus_connection_send(conn, message, 0))
 420                  {
 421                     DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => Access denied"), DLT_STRING(error.message) );
 422                     rval = -1;
 423                  }
 424
 425                  dbus_connection_flush(conn);
 426          dbus_message_unref(message);
 427       }
 428       else
 429       {
 430          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => ERROR: Invalid message"));
 431          rval = -1;
 432       }
 433    }
 434    else
 435    {
 436       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => ERROR: connection isn NULL"));
 437       rval = -1;
 438    }
 439 }
 440
 441
 442
 443 void msg_pending_func(DBusPendingCall *call, void *data)
 444 {
 445    int replyArg = -1;
 446    DBusError err;
 447    dbus_error_init(&err);
 448
 449    DBusMessage *message = dbus_pending_call_steal_reply(call);
 450
 451    if (dbus_set_error_from_message(&err, message))
 452    {
 453       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("msg_pending_func ==> Access denied") );
 454    }
 455    else
 456    {
 457       //DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("msg_pending_func ==> UNlock mutex") );
 458       dbus_message_get_args(message, &err, DBUS_TYPE_INT32, &replyArg, DBUS_TYPE_INVALID);
 459    }
 460
 461    gDbusPendingRvalue = replyArg;   // set the return value
 462    dbus_message_unref(message);
 463
 464    // unlock the mutex because we have received the reply to the dbus message
 465    pthread_mutex_unlock(&gDbusPendingRegMtx);
 466 }
 467
 468
 469
 470