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    //GvdbTable* resourceTable = NULL;
 174    itzam_btree* resourceTable = NULL;
 175    itzam_state  state = ITZAM_FAILED;
 176
 177    // block write
 178    pers_lock_access();
 179
 180    // flush open files to disk
 181    for(i=0; i<MaxPersHandle; i++)
 182    {
 183       int tmp = i;
 184       if(gOpenFdArray[tmp] == FileOpen)
 185       {
 186          fsync(tmp);
 187          close(tmp);
 188       }
 189    }
 190
 191    // close open gvdb persistence resource configuration table
 192    for(i=0; i< PrctDbTableSize; i++)
 193    {
 194      resourceTable = get_resource_cfg_table_by_idx(i);
 195      // dereference opend database
 196      if(resourceTable != NULL)
 197      {
 198         state = itzam_btree_close(resourceTable);
 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    }
 221
 222    // notify lifecycle shutdown OK
 223    send_prepare_shutdown_complete((int)requestId, (int)status);
 224 }
 225
 226
 227
 228 void process_send_pas_request(DBusConnection* conn, unsigned int requestID, int status)
 229 {
 230    DBusError error;
 231    DBusPendingCall* pending = NULL;
 232    dbus_error_init (&error);
 233    int rval = 0;
 234
 235    DBusMessage* message = dbus_message_new_method_call("org.genivi.persistence.admin",       // destination
 236                                                       "/org/genivi/persistence/admin",       // path
 237                                                        "org.genivi.persistence.admin",       // interface
 238                                                        "PersistenceAdminRequestCompleted");  // method
 239    if(message != NULL)
 240    {
 241       dbus_message_append_args(message, DBUS_TYPE_UINT32, &requestID,
 242                                         DBUS_TYPE_INT32,  &status,
 243                                         DBUS_TYPE_INVALID);
 244
 245       if(conn != NULL)
 246       {
 247          //replyMsg = dbus_connection_send_with_reply_and_block(conn, message, gTimeoutMs, &error);
 248          dbus_connection_send_with_reply(conn,        //    the connection
 249                                          message,       // the message to write
 250                                          &pending,      // pending
 251                                          gTimeoutMs);   // timeout in milliseconds or -1 for default
 252
 253          dbus_connection_flush(conn);
 254
 255          if(!dbus_pending_call_set_notify(pending, msg_pending_func, "PersistenceAdminRequestCompleted", NULL))
 256          {
 257             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("process_send_pas_request => dbus_pending_call_set_notify: FAILED\n"));
 258          }
 259          dbus_pending_call_unref(pending);
 260       }
 261       else
 262       {
 263          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_request => ERROR: Invalid connection") );
 264       }
 265       dbus_message_unref(message);
 266    }
 267    else
 268    {
 269       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_request => ERROR: Invalid message") );
 270    }
 271 }
 272
 273
 274 void process_send_pas_register(DBusConnection* conn, int regType, int notificationFlag)
 275 {
 276    DBusError error;
 277    dbus_error_init (&error);
 278    DBusPendingCall* pending = NULL;
 279
 280    char* method = NULL;
 281
 282    if(regType == 0)
 283       method = "UnRegisterPersAdminNotification";
 284    else if(regType == 1)
 285       method = "RegisterPersAdminNotification";
 286
 287    if(conn != NULL)
 288    {
 289       const char* objName = "/org/genivi/persistence/adminconsumer";
 290       const char* busName = dbus_bus_get_unique_name(conn);
 291
 292       if(busName != NULL)
 293       {
 294          DBusMessage* message = dbus_message_new_method_call("org.genivi.persistence.admin",    // destination
 295                                                             "/org/genivi/persistence/admin",    // path
 296                                                              "org.genivi.persistence.admin",    // interface
 297                                                              method);                           // method
 298
 299          if(message != NULL)
 300          {
 301             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,  // bus name
 302                                               DBUS_TYPE_STRING, &objName,
 303                                               DBUS_TYPE_INT32,  &notificationFlag,
 304                                               DBUS_TYPE_UINT32, &gTimeoutMs,
 305                                               DBUS_TYPE_INVALID);
 306
 307             dbus_connection_send_with_reply(conn,           //    the connection
 308                                             message,        // the message to write
 309                                             &pending,       // pending
 310                                             gTimeoutMs);    // timeout in milliseconds or -1 for default
 311
 312             dbus_connection_flush(conn);
 313
 314             if(!dbus_pending_call_set_notify(pending, msg_pending_func, method, NULL))
 315             {
 316                printf("process_send_pas_register => dbus_pending_call_set_notify: FAILED\n");
 317             }
 318             dbus_pending_call_unref(pending);
 319          }
 320          else
 321          {
 322             DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid message") );
 323          }
 324          dbus_message_unref(message);
 325       }
 326       else
 327       {
 328          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid busname") );
 329       }
 330    }
 331    else
 332    {
 333       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_pas_register =>  ERROR: Invalid connection") );
 334    }
 335 }
 336
 337
 338 void process_send_lifecycle_register(DBusConnection* conn, int regType, int shutdownMode)
 339 {
 340    int rval = 0;
 341
 342    DBusError error;
 343    dbus_error_init (&error);
 344
 345    char* method = NULL;
 346
 347    if(regType == 1)
 348       method = "RegisterShutdownClient";
 349    else if(regType == 0)
 350       method = "UnRegisterShutdownClient";
 351
 352    if(conn != NULL)
 353    {
 354       const char* objName = "/org/genivi/NodeStateManager/LifeCycleConsumer";
 355       const char* busName = dbus_bus_get_unique_name(conn);
 356
 357       DBusMessage* message = dbus_message_new_method_call("org.genivi.NodeStateManager",           // destination
 358                                                           "/org/genivi/NodeStateManager/Consumer", // path
 359                                                           "org.genivi.NodeStateManager.Consumer",  // interface
 360                                                           method);                                 // method
 361       if(message != NULL)
 362       {
 363          if(regType == 1)   // register
 364          {
 365             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,
 366                                               DBUS_TYPE_STRING, &objName,
 367                                               DBUS_TYPE_UINT32, &shutdownMode,
 368                                               DBUS_TYPE_UINT32, &gTimeoutMs, DBUS_TYPE_INVALID);
 369          }
 370          else           // unregister
 371          {
 372             dbus_message_append_args(message, DBUS_TYPE_STRING, &busName,
 373                                               DBUS_TYPE_STRING, &objName,
 374                                               DBUS_TYPE_UINT32, &shutdownMode, DBUS_TYPE_INVALID);
 375          }
 376
 377                  if(!dbus_connection_send(conn, message, 0))
 378                  {
 379                     DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => Access denied"), DLT_STRING(error.message) );
 380                     rval = -1;
 381                  }
 382                  dbus_connection_flush(conn);
 383          dbus_message_unref(message);
 384       }
 385       else
 386       {
 387          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => ERROR: Invalid message"));
 388       }
 389    }
 390    else
 391    {
 392       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_register => ERROR: connection isn NULL"));
 393    }
 394 }
 395
 396
 397
 398 void process_send_lifecycle_request(DBusConnection* conn, int requestId, int status)
 399 {
 400    int rval = 0;
 401    DBusError error;
 402    dbus_error_init (&error);
 403
 404    if(conn != NULL)
 405    {
 406       DBusMessage* message = dbus_message_new_method_call("org.genivi.NodeStateManager",           // destination
 407                                                          "/org/genivi/NodeStateManager/Consumer",  // path
 408                                                           "org.genivi.NodeStateManager.Consumer",  // interface
 409                                                           "LifecycleRequestComplete");             // method
 410       if(message != NULL)
 411       {
 412          dbus_message_append_args(message, DBUS_TYPE_INT32, &requestId,
 413                                            DBUS_TYPE_INT32, &status,
 414                                            DBUS_TYPE_INVALID);
 415
 416
 417                  if(!dbus_connection_send(conn, message, 0))
 418                  {
 419                     DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => Access denied"), DLT_STRING(error.message) );
 420                     rval = -1;
 421                  }
 422
 423                  dbus_connection_flush(conn);
 424          dbus_message_unref(message);
 425       }
 426       else
 427       {
 428          DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => ERROR: Invalid message"));
 429          rval = -1;
 430       }
 431    }
 432    else
 433    {
 434       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("send_lifecycle_request => ERROR: connection isn NULL"));
 435       rval = -1;
 436    }
 437 }
 438
 439
 440
 441 void msg_pending_func(DBusPendingCall *call, void *data)
 442 {
 443    int replyArg = -1;
 444    DBusError err;
 445    dbus_error_init(&err);
 446
 447    DBusMessage *message = dbus_pending_call_steal_reply(call);
 448
 449    if (dbus_set_error_from_message(&err, message))
 450    {
 451       DLT_LOG(gDLTContext, DLT_LOG_ERROR, DLT_STRING("msg_pending_func ==> Access denied") );
 452    }
 453    else
 454    {
 455       //DLT_LOG(gDLTContext, DLT_LOG_INFO, DLT_STRING("msg_pending_func ==> UNlock mutex") );
 456       dbus_message_get_args(message, &err, DBUS_TYPE_INT32, &replyArg, DBUS_TYPE_INVALID);
 457    }
 458
 459    gDbusPendingRvalue = replyArg;   // set the return value
 460    dbus_message_unref(message);
 461
 462    // unlock the mutex because we have received the reply to the dbus message
 463    pthread_mutex_unlock(&gDbusPendingRegMtx);
 464 }
 465
 466
 467
 468