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     caglobals.ip.dualstack = caglobals.ip.ipv6enabled && caglobals.ip.ipv4enabled;
 243 }
 244
 245 CAResult_t CAInitializeIP(CARegisterConnectivityCallback registerCallback,
 246                           CANetworkPacketReceivedCallback networkPacketCallback,
 247                           CANetworkChangeCallback netCallback,
 248                           CAErrorHandleCallback errorCallback, ca_thread_pool_t handle)
 249 {
 250     OIC_LOG(DEBUG, TAG, "IN");
 251     VERIFY_NON_NULL(registerCallback, TAG, "registerCallback");
 252     VERIFY_NON_NULL(networkPacketCallback, TAG, "networkPacketCallback");
 253     VERIFY_NON_NULL(netCallback, TAG, "netCallback");
 254 #ifndef SINGLE_THREAD
 255     VERIFY_NON_NULL(handle, TAG, "thread pool handle");
 256 #endif
 257
 258     g_networkChangeCallback = netCallback;
 259     g_networkPacketCallback = networkPacketCallback;
 260     g_errorCallback = errorCallback;
 261
 262     CAInitializeIPGlobals();
 263     caglobals.ip.threadpool = handle;
 264
 265     CAIPSetPacketReceiveCallback(CAIPPacketReceivedCB);
 266 #ifdef __WITH_DTLS__
 267     CAAdapterNetDtlsInit();
 268
 269     CADTLSSetAdapterCallbacks(CAIPPacketReceivedCB, CAIPPacketSendCB, 0);
 270 #endif
 271
 272     CAConnectivityHandler_t ipHandler;
 273     ipHandler.startAdapter = CAStartIP;
 274     ipHandler.startListenServer = CAStartIPListeningServer;
 275     ipHandler.startDiscoveryServer = CAStartIPDiscoveryServer;
 276     ipHandler.sendData = CASendIPUnicastData;
 277     ipHandler.sendDataToAll = CASendIPMulticastData;
 278     ipHandler.GetnetInfo = CAGetIPInterfaceInformation;
 279     ipHandler.readData = CAReadIPData;
 280     ipHandler.stopAdapter = CAStopIP;
 281     ipHandler.terminate = CATerminateIP;
 282     registerCallback(ipHandler, CA_ADAPTER_IP);
 283
 284     OIC_LOG(INFO, TAG, "OUT IntializeIP is Success");
 285     return CA_STATUS_OK;
 286 }
 287
 288 CAResult_t CAStartIP()
 289 {
 290     OIC_LOG(DEBUG, TAG, "IN");
 291
 292 #ifdef SINGLE_THREAD
 293     uint16_t unicastPort = 55555;
 294     // Address is hardcoded as we are using Single Interface
 295     CAResult_t ret = CAIPStartServer();
 296     if (CA_STATUS_OK != ret)
 297     {
 298         OIC_LOG_V(DEBUG, TAG, "CAIPStartServer failed[%d]", ret);
 299         return ret;
 300     }
 301 #else
 302     if (CA_STATUS_OK != CAIPInitializeQueueHandles())
 303     {
 304         OIC_LOG(ERROR, TAG, "Failed to Initialize Queue Handle");
 305         CATerminateIP();
 306         return CA_STATUS_FAILED;
 307     }
 308
 309     // Start send queue thread
 310     if (CA_STATUS_OK != CAQueueingThreadStart(g_sendQueueHandle))
 311     {
 312         OIC_LOG(ERROR, TAG, "Failed to Start Send Data Thread");
 313         return CA_STATUS_FAILED;
 314     }
 315
 316     CAResult_t ret = CAIPStartServer((const ca_thread_pool_t)caglobals.ip.threadpool);
 317     if (CA_STATUS_OK != ret)
 318     {
 319         OIC_LOG_V(ERROR, TAG, "Failed to start server![%d]", ret);
 320         return ret;
 321     }
 322
 323 #endif
 324
 325     OIC_LOG(DEBUG, TAG, "OUT");
 326     return CA_STATUS_OK;
 327 }
 328
 329 CAResult_t CAStartIPListeningServer()
 330 {
 331     OIC_LOG(DEBUG, TAG, "IN");
 332
 333     OIC_LOG(DEBUG, TAG, "OUT");
 334     return CA_STATUS_OK;
 335 }
 336
 337 CAResult_t CAStartIPDiscoveryServer()
 338 {
 339     OIC_LOG(DEBUG, TAG, "IN");
 340     return CAStartIPListeningServer();
 341 }
 342
 343 static int32_t CAQueueIPData(bool isMulticast, const CAEndpoint_t *endpoint,
 344                             const void *data, uint32_t dataLength)
 345 {
 346     OIC_LOG(DEBUG, TAG, "IN");
 347
 348     VERIFY_NON_NULL_RET(endpoint, TAG, "remoteEndpoint", -1);
 349     VERIFY_NON_NULL_RET(data, TAG, "data", -1);
 350
 351     if (0 == dataLength)
 352     {
 353         OIC_LOG(ERROR, TAG, "Invalid Data Length");
 354         return -1;
 355     }
 356
 357 #ifdef SINGLE_THREAD
 358
 359     CAIPSendData(endpoint, data, dataLength, isMulticast);
 360     return dataLength;
 361
 362 #else
 363
 364     VERIFY_NON_NULL_RET(g_sendQueueHandle, TAG, "sendQueueHandle", -1);
 365     // Create IPData to add to queue
 366     CAIPData *ipData = CACreateIPData(endpoint, data, dataLength, isMulticast);
 367     if (!ipData)
 368     {
 369         OIC_LOG(ERROR, TAG, "Failed to create ipData!");
 370         return -1;
 371     }
 372     // Add message to send queue
 373     CAQueueingThreadAddData(g_sendQueueHandle, ipData, sizeof(CAIPData));
 374
 375 #endif // SINGLE_THREAD
 376
 377     OIC_LOG(DEBUG, TAG, "OUT");
 378     return dataLength;
 379 }
 380
 381 int32_t CASendIPUnicastData(const CAEndpoint_t *endpoint,
 382                             const void *data, uint32_t dataLength)
 383 {
 384     OIC_LOG(DEBUG, TAG, "IN");
 385     return CAQueueIPData(false, endpoint, data, dataLength);
 386 }
 387
 388 int32_t CASendIPMulticastData(const CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 389 {
 390     OIC_LOG(DEBUG, TAG, "IN");
 391     return CAQueueIPData(true, endpoint, data, dataLength);
 392 }
 393
 394 CAResult_t CAReadIPData()
 395 {
 396     OIC_LOG(DEBUG, TAG, "IN");
 397     CAIPPullData();
 398     OIC_LOG(DEBUG, TAG, "OUT");
 399     return CA_STATUS_OK;
 400 }
 401
 402 CAResult_t CAStopIP()
 403 {
 404     OIC_LOG(DEBUG, TAG, "IN");
 405
 406 #ifdef __WITH_DTLS__
 407     CAAdapterNetDtlsDeInit();
 408 #endif
 409
 410 #ifndef SINGLE_THREAD
 411     if (g_sendQueueHandle && g_sendQueueHandle->threadMutex)
 412     {
 413         CAQueueingThreadStop(g_sendQueueHandle);
 414     }
 415
 416     CAIPDeinitializeQueueHandles();
 417 #endif
 418
 419     CAIPStopServer();
 420
 421     OIC_LOG(DEBUG, TAG, "OUT");
 422     return CA_STATUS_OK;
 423 }
 424
 425 void CATerminateIP()
 426 {
 427     OIC_LOG(DEBUG, TAG, "IN");
 428
 429 #ifdef __WITH_DTLS__
 430     CADTLSSetAdapterCallbacks(NULL, NULL, 0);
 431 #endif
 432
 433     CAIPSetPacketReceiveCallback(NULL);
 434
 435 #ifndef SINGLE_THREAD
 436     CAIPDeinitializeQueueHandles();
 437 #endif
 438
 439     OIC_LOG(DEBUG, TAG, "OUT");
 440 }
 441
 442 #ifndef SINGLE_THREAD
 443
 444 void CAIPSendDataThread(void *threadData)
 445 {
 446     OIC_LOG(DEBUG, TAG, "IN");
 447
 448     CAIPData *ipData = (CAIPData *) threadData;
 449     if (!ipData)
 450     {
 451         OIC_LOG(DEBUG, TAG, "Invalid ip data!");
 452         return;
 453     }
 454
 455     if (ipData->isMulticast)
 456     {
 457         //Processing for sending multicast
 458         OIC_LOG(DEBUG, TAG, "Send Multicast Data is called");
 459         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, true);
 460     }
 461     else
 462     {
 463         //Processing for sending unicast
 464 #ifdef __WITH_DTLS__
 465         if (ipData->remoteEndpoint->flags & CA_SECURE)
 466         {
 467             OIC_LOG(DEBUG, TAG, "CAAdapterNetDtlsEncrypt called!");
 468             CAResult_t result = CAAdapterNetDtlsEncrypt(ipData->remoteEndpoint,
 469                                                ipData->data, ipData->dataLen);
 470             if (CA_STATUS_OK != result)
 471             {
 472                 OIC_LOG(ERROR, TAG, "CAAdapterNetDtlsEncrypt failed!");
 473             }
 474             OIC_LOG_V(DEBUG, TAG,
 475                       "CAAdapterNetDtlsEncrypt returned with result[%d]", result);
 476         }
 477         else
 478         {
 479             OIC_LOG(DEBUG, TAG, "Send Unicast Data is called");
 480             CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 481         }
 482 #else
 483         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 484 #endif
 485     }
 486
 487     OIC_LOG(DEBUG, TAG, "OUT");
 488 }
 489
 490 #endif
 491
 492 #ifndef SINGLE_THREAD
 493
 494 CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint, const void *data,
 495                                      uint32_t dataLength, bool isMulticast)
 496 {
 497     VERIFY_NON_NULL_RET(data, TAG, "IPData is NULL", NULL);
 498
 499     CAIPData *ipData = (CAIPData *) OICMalloc(sizeof(CAIPData));
 500     if (!ipData)
 501     {
 502         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 503         return NULL;
 504     }
 505
 506     ipData->remoteEndpoint = CACloneEndpoint(remoteEndpoint);
 507     ipData->data = (void *) OICMalloc(dataLength);
 508     if (!ipData->data)
 509     {
 510         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 511         CAFreeIPData(ipData);
 512         return NULL;
 513     }
 514
 515     memcpy(ipData->data, data, dataLength);
 516     ipData->dataLen = dataLength;
 517
 518     ipData->isMulticast = isMulticast;
 519
 520     return ipData;
 521 }
 522
 523 void CAFreeIPData(CAIPData *ipData)
 524 {
 525     VERIFY_NON_NULL_VOID(ipData, TAG, "ipData is NULL");
 526
 527     CAFreeEndpoint(ipData->remoteEndpoint);
 528     OICFree(ipData->data);
 529     OICFree(ipData);
 530 }
 531
 532 void CADataDestroyer(void *data, uint32_t size)
 533 {
 534     if (size < sizeof(CAIPData))
 535     {
 536         OIC_LOG_V(ERROR, TAG, "Destroy data too small %p %d", data, size);
 537     }
 538     CAIPData *etdata = (CAIPData *) data;
 539
 540     CAFreeIPData(etdata);
 541 }
 542
 543 #endif // SINGLE_THREAD