resource/csdk/connectivity/src/ip_adapter/caipadapter.c

   1 /* ****************************************************************
   2  *
   3  * Copyright 2014 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20 #include "caipadapter.h"
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <stdint.h>
  26
  27 #include "caipinterface.h"
  28 #include "caqueueingthread.h"
  29 #include "caadapterutils.h"
  30 #ifdef __WITH_DTLS__
  31 #include "caadapternetdtls.h"
  32 #endif
  33 #include "camutex.h"
  34 #include "uarraylist.h"
  35 #include "caremotehandler.h"
  36 #include "logger.h"
  37 #include "oic_malloc.h"
  38 #include "oic_string.h"
  39
  40 /**
  41  * Logging tag for module name.
  42  */
  43 #define TAG "IP_ADAP"
  44
  45 #ifndef SINGLE_THREAD
  46 /**
  47  * Holds inter thread ip data information.
  48  */
  49 typedef struct
  50 {
  51     CAEndpoint_t *remoteEndpoint;
  52     void *data;
  53     uint32_t dataLen;
  54     bool isMulticast;
  55 } CAIPData;
  56
  57 /**
  58  * Queue handle for Send Data.
  59  */
  60 static CAQueueingThread_t *g_sendQueueHandle = NULL;
  61 #endif
  62
  63 /**
  64  * Network Packet Received Callback to CA.
  65  */
  66 static CANetworkPacketReceivedCallback g_networkPacketCallback = NULL;
  67
  68 /**
  69  * Network Changed Callback to CA.
  70  */
  71 static CANetworkChangeCallback g_networkChangeCallback = NULL;
  72
  73 /**
  74  * error Callback to CA adapter.
  75  */
  76 static CAErrorHandleCallback g_errorCallback = NULL;
  77
  78 static void CAIPPacketReceivedCB(const CAEndpoint_t *endpoint,
  79                                  const void *data, uint32_t dataLength);
  80 #ifdef __WITH_DTLS__
  81 static void CAIPPacketSendCB(CAEndpoint_t *endpoint,
  82                              const void *data, uint32_t dataLength);
  83 #endif
  84
  85 #ifndef SINGLE_THREAD
  86
  87 static CAResult_t CAIPInitializeQueueHandles();
  88
  89 static void CAIPDeinitializeQueueHandles();
  90
  91 static void CAIPSendDataThread(void *threadData);
  92
  93 static CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint,
  94                                 const void *data, uint32_t dataLength,
  95                                 bool isMulticast);
  96 void CAFreeIPData(CAIPData *ipData);
  97
  98 static void CADataDestroyer(void *data, uint32_t size);
  99
 100 CAResult_t CAIPInitializeQueueHandles()
 101 {
 102     OIC_LOG(DEBUG, TAG, "IN");
 103
 104     // Check if the message queue is already initialized
 105     if (g_sendQueueHandle)
 106     {
 107         OIC_LOG(DEBUG, TAG, "send queue handle is already initialized!");
 108         return CA_STATUS_OK;
 109     }
 110
 111     // Create send message queue
 112     g_sendQueueHandle = OICMalloc(sizeof(CAQueueingThread_t));
 113     if (!g_sendQueueHandle)
 114     {
 115         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 116         return CA_MEMORY_ALLOC_FAILED;
 117     }
 118
 119     if (CA_STATUS_OK != CAQueueingThreadInitialize(g_sendQueueHandle,
 120                                 (const ca_thread_pool_t)caglobals.ip.threadpool,
 121                                 CAIPSendDataThread, CADataDestroyer))
 122     {
 123         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
 124         OICFree(g_sendQueueHandle);
 125         g_sendQueueHandle = NULL;
 126         return CA_STATUS_FAILED;
 127     }
 128
 129     OIC_LOG(DEBUG, TAG, "OUT");
 130     return CA_STATUS_OK;
 131 }
 132
 133 void CAIPDeinitializeQueueHandles()
 134 {
 135     OIC_LOG(DEBUG, TAG, "IN");
 136
 137     CAQueueingThreadDestroy(g_sendQueueHandle);
 138     OICFree(g_sendQueueHandle);
 139     g_sendQueueHandle = NULL;
 140
 141     OIC_LOG(DEBUG, TAG, "OUT");
 142 }
 143
 144 #endif // SINGLE_THREAD
 145
 146 void CAIPConnectionStateCB(const char *ipAddress, CANetworkStatus_t status)
 147 {
 148     (void)ipAddress;
 149     (void)status;
 150     OIC_LOG(DEBUG, TAG, "IN");
 151 }
 152
 153 #ifdef __WITH_DTLS__
 154 static void CAIPPacketSendCB(CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 155 {
 156     OIC_LOG(DEBUG, TAG, "IN");
 157
 158     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 159     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 160
 161     CAIPSendData(endpoint, data, dataLength, false);
 162
 163     OIC_LOG(DEBUG, TAG, "OUT");
 164 }
 165 #endif
 166
 167 void CAIPPacketReceivedCB(const CAEndpoint_t *endpoint, const void *data,
 168                           uint32_t dataLength)
 169 {
 170     OIC_LOG(DEBUG, TAG, "IN");
 171
 172     VERIFY_NON_NULL_VOID(endpoint, TAG, "ipAddress is NULL");
 173     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 174
 175     OIC_LOG_V(DEBUG, TAG, "Address: %s, port:%d", endpoint->addr, endpoint->port);
 176
 177     if (g_networkPacketCallback)
 178     {
 179         g_networkPacketCallback(endpoint, data, dataLength);
 180     }
 181     OIC_LOG(DEBUG, TAG, "OUT");
 182 }
 183
 184 void CAIPErrorHandler (const CAEndpoint_t *endpoint, const void *data,
 185                        uint32_t dataLength, CAResult_t result)
 186 {
 187     OIC_LOG(DEBUG, TAG, "IN");
 188
 189     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 190
 191     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 192
 193     void *buf = (void*)OICMalloc(sizeof(char) * dataLength);
 194     if (!buf)
 195     {
 196         OIC_LOG(ERROR, TAG, "Memory Allocation failed!");
 197         return;
 198     }
 199     memcpy(buf, data, dataLength);
 200     if (g_errorCallback)
 201     {
 202         g_errorCallback(endpoint, buf, dataLength, result);
 203     }
 204     else
 205     {
 206         OICFree(buf);
 207     }
 208
 209     OIC_LOG(DEBUG, TAG, "OUT");
 210 }
 211
 212 static void CAInitializeIPGlobals()
 213 {
 214     caglobals.ip.u6.fd  = -1;
 215     caglobals.ip.u6s.fd = -1;
 216     caglobals.ip.u4.fd  = -1;
 217     caglobals.ip.u4s.fd = -1;
 218     caglobals.ip.m6.fd  = -1;
 219     caglobals.ip.m6s.fd = -1;
 220     caglobals.ip.m4.fd  = -1;
 221     caglobals.ip.m4s.fd = -1;
 222     caglobals.ip.u6.port  = 0;
 223     caglobals.ip.u6s.port = 0;
 224     caglobals.ip.u4.port  = 0;
 225     caglobals.ip.u4s.port = 0;
 226     caglobals.ip.m6.port  = CA_COAP;
 227     caglobals.ip.m6s.port = CA_SECURE_COAP;
 228     caglobals.ip.m4.port  = CA_COAP;
 229     caglobals.ip.m4s.port = CA_SECURE_COAP;
 230
 231     CATransportFlags_t flags = 0;
 232     if (caglobals.client)
 233     {
 234         flags |= caglobals.clientFlags;
 235     }
 236     if (caglobals.server)
 237     {
 238         flags |= caglobals.serverFlags;
 239     }
 240     caglobals.ip.ipv6enabled = flags & CA_IPV6;
 241     caglobals.ip.ipv4enabled = flags & CA_IPV4;
 242 }
 243
 244 CAResult_t CAInitializeIP(CARegisterConnectivityCallback registerCallback,
 245                           CANetworkPacketReceivedCallback networkPacketCallback,
 246                           CANetworkChangeCallback netCallback,
 247                           CAErrorHandleCallback errorCallback, ca_thread_pool_t handle)
 248 {
 249     OIC_LOG(DEBUG, TAG, "IN");
 250     VERIFY_NON_NULL(registerCallback, TAG, "registerCallback");
 251     VERIFY_NON_NULL(networkPacketCallback, TAG, "networkPacketCallback");
 252     VERIFY_NON_NULL(netCallback, TAG, "netCallback");
 253 #ifndef SINGLE_THREAD
 254     VERIFY_NON_NULL(handle, TAG, "thread pool handle");
 255 #endif
 256
 257     g_networkChangeCallback = netCallback;
 258     g_networkPacketCallback = networkPacketCallback;
 259     g_errorCallback = errorCallback;
 260
 261     CAInitializeIPGlobals();
 262     caglobals.ip.threadpool = handle;
 263
 264     CAIPSetPacketReceiveCallback(CAIPPacketReceivedCB);
 265 #ifdef __WITH_DTLS__
 266     CAAdapterNetDtlsInit();
 267
 268     CADTLSSetAdapterCallbacks(CAIPPacketReceivedCB, CAIPPacketSendCB, 0);
 269 #endif
 270
 271     CAConnectivityHandler_t ipHandler;
 272     ipHandler.startAdapter = CAStartIP;
 273     ipHandler.startListenServer = CAStartIPListeningServer;
 274     ipHandler.startDiscoveryServer = CAStartIPDiscoveryServer;
 275     ipHandler.sendData = CASendIPUnicastData;
 276     ipHandler.sendDataToAll = CASendIPMulticastData;
 277     ipHandler.GetnetInfo = CAGetIPInterfaceInformation;
 278     ipHandler.readData = CAReadIPData;
 279     ipHandler.stopAdapter = CAStopIP;
 280     ipHandler.terminate = CATerminateIP;
 281     registerCallback(ipHandler, CA_ADAPTER_IP);
 282
 283     OIC_LOG(INFO, TAG, "OUT IntializeIP is Success");
 284     return CA_STATUS_OK;
 285 }
 286
 287 CAResult_t CAStartIP()
 288 {
 289     OIC_LOG(DEBUG, TAG, "IN");
 290
 291 #ifdef SINGLE_THREAD
 292     uint16_t unicastPort = 55555;
 293     // Address is hardcoded as we are using Single Interface
 294     CAResult_t ret = CAIPStartServer();
 295     if (CA_STATUS_OK != ret)
 296     {
 297         OIC_LOG_V(DEBUG, TAG, "CAIPStartServer failed[%d]", ret);
 298         return ret;
 299     }
 300 #else
 301     if (CA_STATUS_OK != CAIPInitializeQueueHandles())
 302     {
 303         OIC_LOG(ERROR, TAG, "Failed to Initialize Queue Handle");
 304         CATerminateIP();
 305         return CA_STATUS_FAILED;
 306     }
 307
 308     // Start send queue thread
 309     if (CA_STATUS_OK != CAQueueingThreadStart(g_sendQueueHandle))
 310     {
 311         OIC_LOG(ERROR, TAG, "Failed to Start Send Data Thread");
 312         return CA_STATUS_FAILED;
 313     }
 314
 315     CAResult_t ret = CAIPStartServer((const ca_thread_pool_t)caglobals.ip.threadpool);
 316     if (CA_STATUS_OK != ret)
 317     {
 318         OIC_LOG_V(ERROR, TAG, "Failed to start server![%d]", ret);
 319         return ret;
 320     }
 321
 322 #endif
 323
 324     OIC_LOG(DEBUG, TAG, "OUT");
 325     return CA_STATUS_OK;
 326 }
 327
 328 CAResult_t CAStartIPListeningServer()
 329 {
 330     OIC_LOG(DEBUG, TAG, "IN");
 331
 332     OIC_LOG(DEBUG, TAG, "OUT");
 333     return CA_STATUS_OK;
 334 }
 335
 336 CAResult_t CAStartIPDiscoveryServer()
 337 {
 338     OIC_LOG(DEBUG, TAG, "IN");
 339     return CAStartIPListeningServer();
 340 }
 341
 342 static int32_t CAQueueIPData(bool isMulticast, const CAEndpoint_t *endpoint,
 343                             const void *data, uint32_t dataLength)
 344 {
 345     OIC_LOG(DEBUG, TAG, "IN");
 346
 347     VERIFY_NON_NULL_RET(endpoint, TAG, "remoteEndpoint", -1);
 348     VERIFY_NON_NULL_RET(data, TAG, "data", -1);
 349
 350     if (0 == dataLength)
 351     {
 352         OIC_LOG(ERROR, TAG, "Invalid Data Length");
 353         return -1;
 354     }
 355
 356 #ifdef SINGLE_THREAD
 357
 358     CAIPSendData(endpoint, data, dataLength, isMulticast);
 359     return dataLength;
 360
 361 #else
 362
 363     VERIFY_NON_NULL_RET(g_sendQueueHandle, TAG, "sendQueueHandle", -1);
 364     // Create IPData to add to queue
 365     CAIPData *ipData = CACreateIPData(endpoint, data, dataLength, isMulticast);
 366     if (!ipData)
 367     {
 368         OIC_LOG(ERROR, TAG, "Failed to create ipData!");
 369         return -1;
 370     }
 371     // Add message to send queue
 372     CAQueueingThreadAddData(g_sendQueueHandle, ipData, sizeof(CAIPData));
 373
 374 #endif // SINGLE_THREAD
 375
 376     OIC_LOG(DEBUG, TAG, "OUT");
 377     return dataLength;
 378 }
 379
 380 int32_t CASendIPUnicastData(const CAEndpoint_t *endpoint,
 381                             const void *data, uint32_t dataLength)
 382 {
 383     OIC_LOG(DEBUG, TAG, "IN");
 384     return CAQueueIPData(false, endpoint, data, dataLength);
 385 }
 386
 387 int32_t CASendIPMulticastData(const CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 388 {
 389     OIC_LOG(DEBUG, TAG, "IN");
 390     return CAQueueIPData(true, endpoint, data, dataLength);
 391 }
 392
 393 CAResult_t CAReadIPData()
 394 {
 395     OIC_LOG(DEBUG, TAG, "IN");
 396     CAIPPullData();
 397     OIC_LOG(DEBUG, TAG, "OUT");
 398     return CA_STATUS_OK;
 399 }
 400
 401 CAResult_t CAStopIP()
 402 {
 403     OIC_LOG(DEBUG, TAG, "IN");
 404
 405 #ifdef __WITH_DTLS__
 406     CAAdapterNetDtlsDeInit();
 407 #endif
 408
 409 #ifndef SINGLE_THREAD
 410     if (g_sendQueueHandle && g_sendQueueHandle->threadMutex)
 411     {
 412         CAQueueingThreadStop(g_sendQueueHandle);
 413     }
 414
 415     CAIPDeinitializeQueueHandles();
 416 #endif
 417
 418     CAIPStopServer();
 419
 420     OIC_LOG(DEBUG, TAG, "OUT");
 421     return CA_STATUS_OK;
 422 }
 423
 424 void CATerminateIP()
 425 {
 426     OIC_LOG(DEBUG, TAG, "IN");
 427
 428 #ifdef __WITH_DTLS__
 429     CADTLSSetAdapterCallbacks(NULL, NULL, 0);
 430 #endif
 431
 432     CAIPSetPacketReceiveCallback(NULL);
 433
 434 #ifndef SINGLE_THREAD
 435     CAIPDeinitializeQueueHandles();
 436 #endif
 437
 438     OIC_LOG(DEBUG, TAG, "OUT");
 439 }
 440
 441 #ifndef SINGLE_THREAD
 442
 443 void CAIPSendDataThread(void *threadData)
 444 {
 445     OIC_LOG(DEBUG, TAG, "IN");
 446
 447     CAIPData *ipData = (CAIPData *) threadData;
 448     if (!ipData)
 449     {
 450         OIC_LOG(DEBUG, TAG, "Invalid ip data!");
 451         return;
 452     }
 453
 454     if (ipData->isMulticast)
 455     {
 456         //Processing for sending multicast
 457         OIC_LOG(DEBUG, TAG, "Send Multicast Data is called");
 458         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, true);
 459     }
 460     else
 461     {
 462         //Processing for sending unicast
 463 #ifdef __WITH_DTLS__
 464         if (ipData->remoteEndpoint->flags & CA_SECURE)
 465         {
 466             OIC_LOG(DEBUG, TAG, "CAAdapterNetDtlsEncrypt called!");
 467             CAResult_t result = CAAdapterNetDtlsEncrypt(ipData->remoteEndpoint,
 468                                                ipData->data, ipData->dataLen);
 469             if (CA_STATUS_OK != result)
 470             {
 471                 OIC_LOG(ERROR, TAG, "CAAdapterNetDtlsEncrypt failed!");
 472             }
 473             OIC_LOG_V(DEBUG, TAG,
 474                       "CAAdapterNetDtlsEncrypt returned with result[%d]", result);
 475         }
 476         else
 477         {
 478             OIC_LOG(DEBUG, TAG, "Send Unicast Data is called");
 479             CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 480         }
 481 #else
 482         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 483 #endif
 484     }
 485
 486     OIC_LOG(DEBUG, TAG, "OUT");
 487 }
 488
 489 #endif
 490
 491 #ifndef SINGLE_THREAD
 492
 493 CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint, const void *data,
 494                                      uint32_t dataLength, bool isMulticast)
 495 {
 496     VERIFY_NON_NULL_RET(data, TAG, "IPData is NULL", NULL);
 497
 498     CAIPData *ipData = (CAIPData *) OICMalloc(sizeof(CAIPData));
 499     if (!ipData)
 500     {
 501         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 502         return NULL;
 503     }
 504
 505     ipData->remoteEndpoint = CACloneEndpoint(remoteEndpoint);
 506     ipData->data = (void *) OICMalloc(dataLength);
 507     if (!ipData->data)
 508     {
 509         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 510         CAFreeIPData(ipData);
 511         return NULL;
 512     }
 513
 514     memcpy(ipData->data, data, dataLength);
 515     ipData->dataLen = dataLength;
 516
 517     ipData->isMulticast = isMulticast;
 518
 519     return ipData;
 520 }
 521
 522 void CAFreeIPData(CAIPData *ipData)
 523 {
 524     VERIFY_NON_NULL_VOID(ipData, TAG, "ipData is NULL");
 525
 526     CAFreeEndpoint(ipData->remoteEndpoint);
 527     OICFree(ipData->data);
 528     OICFree(ipData);
 529 }
 530
 531 void CADataDestroyer(void *data, uint32_t size)
 532 {
 533     if (size < sizeof(CAIPData))
 534     {
 535         OIC_LOG_V(ERROR, TAG, "Destroy data too small %p %d", data, size);
 536     }
 537     CAIPData *etdata = (CAIPData *) data;
 538
 539     CAFreeIPData(etdata);
 540 }
 541
 542 #endif // SINGLE_THREAD