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  * @def TAG
  42  * @brief Logging tag for module name
  43  */
  44 #define TAG "IP_ADAP"
  45
  46 #ifndef SINGLE_THREAD
  47 /**
  48  * @var CAIPData
  49  * @brief Holds inter thread ip data information.
  50  */
  51 typedef struct
  52 {
  53     CAEndpoint_t *remoteEndpoint;
  54     void *data;
  55     uint32_t dataLen;
  56     bool isMulticast;
  57 } CAIPData;
  58
  59 /**
  60  * @var g_sendQueueHandle
  61  * @brief Queue handle for Send Data
  62  */
  63 static CAQueueingThread_t *g_sendQueueHandle = NULL;
  64 #endif
  65
  66 /**
  67  * @var g_networkPacketCallback
  68  * @brief Network Packet Received Callback to CA
  69  */
  70 static CANetworkPacketReceivedCallback g_networkPacketCallback = NULL;
  71
  72 /**
  73  * @var g_networkChangeCallback
  74  * @brief Network Changed Callback to CA
  75  */
  76 static CANetworkChangeCallback g_networkChangeCallback = NULL;
  77
  78 /**
  79  * @var g_errorCallback
  80  * @brief error Callback to CA adapter
  81  */
  82 static CAErrorHandleCallback g_errorCallback = NULL;
  83
  84 static void CAIPPacketReceivedCB(const CAEndpoint_t *endpoint,
  85                                  const void *data, uint32_t dataLength);
  86 #ifdef __WITH_DTLS__
  87 static void CAIPPacketSendCB(CAEndpoint_t *endpoint,
  88                              const void *data, uint32_t dataLength);
  89 #endif
  90
  91 #ifndef SINGLE_THREAD
  92
  93 static CAResult_t CAIPInitializeQueueHandles();
  94
  95 static void CAIPDeinitializeQueueHandles();
  96
  97 static void CAIPSendDataThread(void *threadData);
  98
  99 static CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint,
 100                                 const void *data, uint32_t dataLength,
 101                                 bool isMulticast);
 102 void CAFreeIPData(CAIPData *ipData);
 103
 104 static void CADataDestroyer(void *data, uint32_t size);
 105
 106 CAResult_t CAIPInitializeQueueHandles()
 107 {
 108     OIC_LOG(DEBUG, TAG, "IN");
 109
 110     // Check if the message queue is already initialized
 111     if (g_sendQueueHandle)
 112     {
 113         OIC_LOG(DEBUG, TAG, "send queue handle is already initialized!");
 114         return CA_STATUS_OK;
 115     }
 116
 117     // Create send message queue
 118     g_sendQueueHandle = OICMalloc(sizeof(CAQueueingThread_t));
 119     if (!g_sendQueueHandle)
 120     {
 121         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 122         return CA_MEMORY_ALLOC_FAILED;
 123     }
 124
 125     if (CA_STATUS_OK != CAQueueingThreadInitialize(g_sendQueueHandle,
 126                                 (const ca_thread_pool_t)caglobals.ip.threadpool,
 127                                 CAIPSendDataThread, CADataDestroyer))
 128     {
 129         OIC_LOG(ERROR, TAG, "Failed to Initialize send queue thread");
 130         OICFree(g_sendQueueHandle);
 131         g_sendQueueHandle = NULL;
 132         return CA_STATUS_FAILED;
 133     }
 134
 135     OIC_LOG(DEBUG, TAG, "OUT");
 136     return CA_STATUS_OK;
 137 }
 138
 139 void CAIPDeinitializeQueueHandles()
 140 {
 141     OIC_LOG(DEBUG, TAG, "IN");
 142
 143     CAQueueingThreadDestroy(g_sendQueueHandle);
 144     OICFree(g_sendQueueHandle);
 145     g_sendQueueHandle = NULL;
 146
 147     OIC_LOG(DEBUG, TAG, "OUT");
 148 }
 149
 150 #endif // SINGLE_THREAD
 151
 152 void CAIPConnectionStateCB(const char *ipAddress, CANetworkStatus_t status)
 153 {
 154     OIC_LOG(DEBUG, TAG, "IN");
 155 }
 156
 157 #ifdef __WITH_DTLS__
 158 static void CAIPPacketSendCB(CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 159 {
 160     OIC_LOG(DEBUG, TAG, "IN");
 161
 162     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 163     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 164
 165     CAIPSendData(endpoint, data, dataLength, false);
 166
 167     OIC_LOG(DEBUG, TAG, "OUT");
 168 }
 169 #endif
 170
 171 void CAIPPacketReceivedCB(const CAEndpoint_t *endpoint, const void *data,
 172                           uint32_t dataLength)
 173 {
 174     OIC_LOG(DEBUG, TAG, "IN");
 175
 176     VERIFY_NON_NULL_VOID(endpoint, TAG, "ipAddress is NULL");
 177     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 178
 179     OIC_LOG_V(DEBUG, TAG, "Address: %s, port:%d", endpoint->addr, endpoint->port);
 180
 181     void *buf = OICCalloc(dataLength + 1, sizeof (char));
 182     if (!buf)
 183     {
 184         OIC_LOG(ERROR, TAG, "Memory Allocation failed!");
 185         return;
 186     }
 187     memcpy(buf, data, dataLength);
 188
 189     if (g_networkPacketCallback)
 190     {
 191         g_networkPacketCallback(endpoint, buf, dataLength);
 192     }
 193     else
 194     {
 195         OICFree(buf);
 196     }
 197     OIC_LOG(DEBUG, TAG, "OUT");
 198 }
 199
 200 void CAIPErrorHandler (const CAEndpoint_t *endpoint, const void *data,
 201                        uint32_t dataLength, CAResult_t result)
 202 {
 203     OIC_LOG(DEBUG, TAG, "IN");
 204
 205     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 206
 207     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 208
 209     void *buf = (void*)OICMalloc(sizeof(char) * dataLength);
 210     if (!buf)
 211     {
 212         OIC_LOG(ERROR, TAG, "Memory Allocation failed!");
 213         return;
 214     }
 215     memcpy(buf, data, dataLength);
 216     if (g_errorCallback)
 217     {
 218         g_errorCallback(endpoint, buf, dataLength, result);
 219     }
 220     else
 221     {
 222         OICFree(buf);
 223     }
 224
 225     OIC_LOG(DEBUG, TAG, "OUT");
 226 }
 227
 228 static void CAInitializeIPGlobals()
 229 {
 230     caglobals.ip.u6.fd  = -1;
 231     caglobals.ip.u6s.fd = -1;
 232     caglobals.ip.u4.fd  = -1;
 233     caglobals.ip.u4s.fd = -1;
 234     caglobals.ip.m6.fd  = -1;
 235     caglobals.ip.m6s.fd = -1;
 236     caglobals.ip.m4.fd  = -1;
 237     caglobals.ip.m4s.fd = -1;
 238     caglobals.ip.u6.port  = 0;
 239     caglobals.ip.u6s.port = 0;
 240     caglobals.ip.u4.port  = 0;
 241     caglobals.ip.u4s.port = 0;
 242     caglobals.ip.m6.port  = CA_COAP;
 243     caglobals.ip.m6s.port = CA_SECURE_COAP;
 244     caglobals.ip.m4.port  = CA_COAP;
 245     caglobals.ip.m4s.port = CA_SECURE_COAP;
 246
 247     CATransportFlags_t flags = 0;
 248     if (caglobals.client)
 249     {
 250         flags |= caglobals.clientFlags;
 251     }
 252     if (caglobals.server)
 253     {
 254         flags |= caglobals.serverFlags;
 255     }
 256     caglobals.ip.ipv6enabled = flags & CA_IPV6;
 257     caglobals.ip.ipv4enabled = flags & CA_IPV4;
 258 }
 259
 260 CAResult_t CAInitializeIP(CARegisterConnectivityCallback registerCallback,
 261                           CANetworkPacketReceivedCallback networkPacketCallback,
 262                           CANetworkChangeCallback netCallback,
 263                           CAErrorHandleCallback errorCallback, ca_thread_pool_t handle)
 264 {
 265     OIC_LOG(DEBUG, TAG, "IN");
 266     VERIFY_NON_NULL(registerCallback, TAG, "registerCallback");
 267     VERIFY_NON_NULL(networkPacketCallback, TAG, "networkPacketCallback");
 268     VERIFY_NON_NULL(netCallback, TAG, "netCallback");
 269 #ifndef SINGLE_THREAD
 270     VERIFY_NON_NULL(handle, TAG, "thread pool handle");
 271 #endif
 272
 273     g_networkChangeCallback = netCallback;
 274     g_networkPacketCallback = networkPacketCallback;
 275     g_errorCallback = errorCallback;
 276
 277     CAInitializeIPGlobals();
 278     caglobals.ip.threadpool = handle;
 279
 280     CAIPSetPacketReceiveCallback(CAIPPacketReceivedCB);
 281 #ifdef __WITH_DTLS__
 282     CAAdapterNetDtlsInit();
 283
 284     CADTLSSetAdapterCallbacks(CAIPPacketReceivedCB, CAIPPacketSendCB, 0);
 285 #endif
 286
 287     CAConnectivityHandler_t ipHandler;
 288     ipHandler.startAdapter = CAStartIP;
 289     ipHandler.startListenServer = CAStartIPListeningServer;
 290     ipHandler.startDiscoveryServer = CAStartIPDiscoveryServer;
 291     ipHandler.sendData = CASendIPUnicastData;
 292     ipHandler.sendDataToAll = CASendIPMulticastData;
 293     ipHandler.GetnetInfo = CAGetIPInterfaceInformation;
 294     ipHandler.readData = CAReadIPData;
 295     ipHandler.stopAdapter = CAStopIP;
 296     ipHandler.terminate = CATerminateIP;
 297     registerCallback(ipHandler, CA_ADAPTER_IP);
 298
 299     OIC_LOG(INFO, TAG, "OUT IntializeIP is Success");
 300     return CA_STATUS_OK;
 301 }
 302
 303 CAResult_t CAStartIP()
 304 {
 305     OIC_LOG(DEBUG, TAG, "IN");
 306
 307 #ifdef SINGLE_THREAD
 308     uint16_t unicastPort = 55555;
 309     // Address is hardcoded as we are using Single Interface
 310     CAResult_t ret = CAIPStartServer();
 311     if (CA_STATUS_OK != ret)
 312     {
 313         OIC_LOG_V(DEBUG, TAG, "CAIPStartServer failed[%d]", ret);
 314         return ret;
 315     }
 316 #else
 317     if (CA_STATUS_OK != CAIPInitializeQueueHandles())
 318     {
 319         OIC_LOG(ERROR, TAG, "Failed to Initialize Queue Handle");
 320         CATerminateIP();
 321         return CA_STATUS_FAILED;
 322     }
 323
 324     // Start send queue thread
 325     if (CA_STATUS_OK != CAQueueingThreadStart(g_sendQueueHandle))
 326     {
 327         OIC_LOG(ERROR, TAG, "Failed to Start Send Data Thread");
 328         return CA_STATUS_FAILED;
 329     }
 330
 331     CAResult_t ret = CAIPStartServer((const ca_thread_pool_t)caglobals.ip.threadpool);
 332     if (CA_STATUS_OK != ret)
 333     {
 334         OIC_LOG_V(ERROR, TAG, "Failed to start server![%d]", ret);
 335         return ret;
 336     }
 337
 338 #endif
 339
 340     OIC_LOG(DEBUG, TAG, "OUT");
 341     return CA_STATUS_OK;
 342 }
 343
 344 CAResult_t CAStartIPListeningServer()
 345 {
 346     OIC_LOG(DEBUG, TAG, "IN");
 347
 348     OIC_LOG(DEBUG, TAG, "OUT");
 349     return CA_STATUS_OK;
 350 }
 351
 352 CAResult_t CAStartIPDiscoveryServer()
 353 {
 354     OIC_LOG(DEBUG, TAG, "IN");
 355     return CAStartIPListeningServer();
 356 }
 357
 358 static int32_t CAQueueIPData(bool isMulticast, const CAEndpoint_t *endpoint,
 359                             const void *data, uint32_t dataLength)
 360 {
 361     OIC_LOG(DEBUG, TAG, "IN");
 362
 363     VERIFY_NON_NULL_RET(endpoint, TAG, "remoteEndpoint", -1);
 364     VERIFY_NON_NULL_RET(data, TAG, "data", -1);
 365
 366     if (0 == dataLength)
 367     {
 368         OIC_LOG(ERROR, TAG, "Invalid Data Length");
 369         return -1;
 370     }
 371
 372 #ifdef SINGLE_THREAD
 373
 374     CAIPSendData(endpoint, data, dataLength, isMulticast);
 375
 376 #else
 377
 378     VERIFY_NON_NULL_RET(g_sendQueueHandle, TAG, "sendQueueHandle", -1);
 379     // Create IPData to add to queue
 380     CAIPData *ipData = CACreateIPData(endpoint, data, dataLength, isMulticast);
 381     if (!ipData)
 382     {
 383         OIC_LOG(ERROR, TAG, "Failed to create ipData!");
 384         return -1;
 385     }
 386     // Add message to send queue
 387     CAQueueingThreadAddData(g_sendQueueHandle, ipData, sizeof(CAIPData));
 388
 389     OIC_LOG(DEBUG, TAG, "OUT");
 390     return dataLength;
 391
 392 #endif // SINGLE_THREAD
 393 }
 394
 395 int32_t CASendIPUnicastData(const CAEndpoint_t *endpoint,
 396                             const void *data, uint32_t dataLength)
 397 {
 398     OIC_LOG(DEBUG, TAG, "IN");
 399     return CAQueueIPData(false, endpoint, data, dataLength);
 400 }
 401
 402 int32_t CASendIPMulticastData(const CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 403 {
 404     OIC_LOG(DEBUG, TAG, "IN");
 405     return CAQueueIPData(true, endpoint, data, dataLength);
 406 }
 407
 408 CAResult_t CAReadIPData()
 409 {
 410     OIC_LOG(DEBUG, TAG, "IN");
 411     CAIPPullData();
 412     OIC_LOG(DEBUG, TAG, "OUT");
 413     return CA_STATUS_OK;
 414 }
 415
 416 CAResult_t CAStopIP()
 417 {
 418     OIC_LOG(DEBUG, TAG, "IN");
 419
 420 #ifdef __WITH_DTLS__
 421     CAAdapterNetDtlsDeInit();
 422 #endif
 423
 424 #ifndef SINGLE_THREAD
 425     if (g_sendQueueHandle && g_sendQueueHandle->threadMutex)
 426     {
 427         CAQueueingThreadStop(g_sendQueueHandle);
 428     }
 429
 430     CAIPDeinitializeQueueHandles();
 431 #endif
 432
 433     CAIPStopServer();
 434
 435     OIC_LOG(DEBUG, TAG, "OUT");
 436     return CA_STATUS_OK;
 437 }
 438
 439 void CATerminateIP()
 440 {
 441     OIC_LOG(DEBUG, TAG, "IN");
 442
 443 #ifdef __WITH_DTLS__
 444     CADTLSSetAdapterCallbacks(NULL, NULL, 0);
 445 #endif
 446
 447     CAIPSetPacketReceiveCallback(NULL);
 448
 449 #ifndef SINGLE_THREAD
 450     CAIPDeinitializeQueueHandles();
 451 #endif
 452
 453     OIC_LOG(DEBUG, TAG, "OUT");
 454 }
 455
 456 #ifndef SINGLE_THREAD
 457
 458 void CAIPSendDataThread(void *threadData)
 459 {
 460     OIC_LOG(DEBUG, TAG, "IN");
 461
 462     CAIPData *ipData = (CAIPData *) threadData;
 463     if (!ipData)
 464     {
 465         OIC_LOG(DEBUG, TAG, "Invalid ip data!");
 466         return;
 467     }
 468
 469     if (ipData->isMulticast)
 470     {
 471         //Processing for sending multicast
 472         OIC_LOG(DEBUG, TAG, "Send Multicast Data is called");
 473         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, true);
 474     }
 475     else
 476     {
 477         //Processing for sending unicast
 478 #ifdef __WITH_DTLS__
 479         if (ipData->remoteEndpoint->flags & CA_SECURE)
 480         {
 481             OIC_LOG(DEBUG, TAG, "CAAdapterNetDtlsEncrypt called!");
 482             CAResult_t result = CAAdapterNetDtlsEncrypt(ipData->remoteEndpoint,
 483                                                ipData->data, ipData->dataLen);
 484             if (CA_STATUS_OK != result)
 485             {
 486                 OIC_LOG(ERROR, TAG, "CAAdapterNetDtlsEncrypt failed!");
 487             }
 488             OIC_LOG_V(DEBUG, TAG,
 489                       "CAAdapterNetDtlsEncrypt returned with result[%d]", result);
 490         }
 491         else
 492         {
 493             OIC_LOG(DEBUG, TAG, "Send Unicast Data is called");
 494             CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 495         }
 496 #else
 497         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 498 #endif
 499     }
 500
 501     OIC_LOG(DEBUG, TAG, "OUT");
 502 }
 503
 504 #endif
 505
 506 #ifndef SINGLE_THREAD
 507
 508 CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint, const void *data,
 509                                      uint32_t dataLength, bool isMulticast)
 510 {
 511     VERIFY_NON_NULL_RET(data, TAG, "IPData is NULL", NULL);
 512
 513     CAIPData *ipData = (CAIPData *) OICMalloc(sizeof(CAIPData));
 514     if (!ipData)
 515     {
 516         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 517         return NULL;
 518     }
 519
 520     ipData->remoteEndpoint = CACloneEndpoint(remoteEndpoint);
 521     ipData->data = (void *) OICMalloc(dataLength);
 522     if (!ipData->data)
 523     {
 524         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 525         CAFreeIPData(ipData);
 526         return NULL;
 527     }
 528
 529     memcpy(ipData->data, data, dataLength);
 530     ipData->dataLen = dataLength;
 531
 532     ipData->isMulticast = isMulticast;
 533
 534     return ipData;
 535 }
 536
 537 void CAFreeIPData(CAIPData *ipData)
 538 {
 539     VERIFY_NON_NULL_VOID(ipData, TAG, "ipData is NULL");
 540
 541     CAFreeEndpoint(ipData->remoteEndpoint);
 542     OICFree(ipData->data);
 543     OICFree(ipData);
 544 }
 545
 546 void CADataDestroyer(void *data, uint32_t size)
 547 {
 548     CAIPData *etdata = (CAIPData *) data;
 549
 550     CAFreeIPData(etdata);
 551 }
 552
 553 #endif // SINGLE_THREAD
 554