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     OIC_LOG(DEBUG, TAG, "IN");
 149 }
 150
 151 #ifdef __WITH_DTLS__
 152 static void CAIPPacketSendCB(CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 153 {
 154     OIC_LOG(DEBUG, TAG, "IN");
 155
 156     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 157     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 158
 159     CAIPSendData(endpoint, data, dataLength, false);
 160
 161     OIC_LOG(DEBUG, TAG, "OUT");
 162 }
 163 #endif
 164
 165 void CAIPPacketReceivedCB(const CAEndpoint_t *endpoint, const void *data,
 166                           uint32_t dataLength)
 167 {
 168     OIC_LOG(DEBUG, TAG, "IN");
 169
 170     VERIFY_NON_NULL_VOID(endpoint, TAG, "ipAddress is NULL");
 171     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 172
 173     OIC_LOG_V(DEBUG, TAG, "Address: %s, port:%d", endpoint->addr, endpoint->port);
 174
 175     if (g_networkPacketCallback)
 176     {
 177         g_networkPacketCallback(endpoint, data, dataLength);
 178     }
 179     OIC_LOG(DEBUG, TAG, "OUT");
 180 }
 181
 182 void CAIPErrorHandler (const CAEndpoint_t *endpoint, const void *data,
 183                        uint32_t dataLength, CAResult_t result)
 184 {
 185     OIC_LOG(DEBUG, TAG, "IN");
 186
 187     VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
 188
 189     VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
 190
 191     void *buf = (void*)OICMalloc(sizeof(char) * dataLength);
 192     if (!buf)
 193     {
 194         OIC_LOG(ERROR, TAG, "Memory Allocation failed!");
 195         return;
 196     }
 197     memcpy(buf, data, dataLength);
 198     if (g_errorCallback)
 199     {
 200         g_errorCallback(endpoint, buf, dataLength, result);
 201     }
 202     else
 203     {
 204         OICFree(buf);
 205     }
 206
 207     OIC_LOG(DEBUG, TAG, "OUT");
 208 }
 209
 210 static void CAInitializeIPGlobals()
 211 {
 212     caglobals.ip.u6.fd  = -1;
 213     caglobals.ip.u6s.fd = -1;
 214     caglobals.ip.u4.fd  = -1;
 215     caglobals.ip.u4s.fd = -1;
 216     caglobals.ip.m6.fd  = -1;
 217     caglobals.ip.m6s.fd = -1;
 218     caglobals.ip.m4.fd  = -1;
 219     caglobals.ip.m4s.fd = -1;
 220     caglobals.ip.u6.port  = 0;
 221     caglobals.ip.u6s.port = 0;
 222     caglobals.ip.u4.port  = 0;
 223     caglobals.ip.u4s.port = 0;
 224     caglobals.ip.m6.port  = CA_COAP;
 225     caglobals.ip.m6s.port = CA_SECURE_COAP;
 226     caglobals.ip.m4.port  = CA_COAP;
 227     caglobals.ip.m4s.port = CA_SECURE_COAP;
 228
 229     CATransportFlags_t flags = 0;
 230     if (caglobals.client)
 231     {
 232         flags |= caglobals.clientFlags;
 233     }
 234     if (caglobals.server)
 235     {
 236         flags |= caglobals.serverFlags;
 237     }
 238     caglobals.ip.ipv6enabled = flags & CA_IPV6;
 239     caglobals.ip.ipv4enabled = flags & CA_IPV4;
 240 }
 241
 242 CAResult_t CAInitializeIP(CARegisterConnectivityCallback registerCallback,
 243                           CANetworkPacketReceivedCallback networkPacketCallback,
 244                           CANetworkChangeCallback netCallback,
 245                           CAErrorHandleCallback errorCallback, ca_thread_pool_t handle)
 246 {
 247     OIC_LOG(DEBUG, TAG, "IN");
 248     VERIFY_NON_NULL(registerCallback, TAG, "registerCallback");
 249     VERIFY_NON_NULL(networkPacketCallback, TAG, "networkPacketCallback");
 250     VERIFY_NON_NULL(netCallback, TAG, "netCallback");
 251 #ifndef SINGLE_THREAD
 252     VERIFY_NON_NULL(handle, TAG, "thread pool handle");
 253 #endif
 254
 255     g_networkChangeCallback = netCallback;
 256     g_networkPacketCallback = networkPacketCallback;
 257     g_errorCallback = errorCallback;
 258
 259     CAInitializeIPGlobals();
 260     caglobals.ip.threadpool = handle;
 261
 262     CAIPSetPacketReceiveCallback(CAIPPacketReceivedCB);
 263 #ifdef __WITH_DTLS__
 264     CAAdapterNetDtlsInit();
 265
 266     CADTLSSetAdapterCallbacks(CAIPPacketReceivedCB, CAIPPacketSendCB, 0);
 267 #endif
 268
 269     CAConnectivityHandler_t ipHandler;
 270     ipHandler.startAdapter = CAStartIP;
 271     ipHandler.startListenServer = CAStartIPListeningServer;
 272     ipHandler.startDiscoveryServer = CAStartIPDiscoveryServer;
 273     ipHandler.sendData = CASendIPUnicastData;
 274     ipHandler.sendDataToAll = CASendIPMulticastData;
 275     ipHandler.GetnetInfo = CAGetIPInterfaceInformation;
 276     ipHandler.readData = CAReadIPData;
 277     ipHandler.stopAdapter = CAStopIP;
 278     ipHandler.terminate = CATerminateIP;
 279     registerCallback(ipHandler, CA_ADAPTER_IP);
 280
 281     OIC_LOG(INFO, TAG, "OUT IntializeIP is Success");
 282     return CA_STATUS_OK;
 283 }
 284
 285 CAResult_t CAStartIP()
 286 {
 287     OIC_LOG(DEBUG, TAG, "IN");
 288
 289 #ifdef SINGLE_THREAD
 290     uint16_t unicastPort = 55555;
 291     // Address is hardcoded as we are using Single Interface
 292     CAResult_t ret = CAIPStartServer();
 293     if (CA_STATUS_OK != ret)
 294     {
 295         OIC_LOG_V(DEBUG, TAG, "CAIPStartServer failed[%d]", ret);
 296         return ret;
 297     }
 298 #else
 299     if (CA_STATUS_OK != CAIPInitializeQueueHandles())
 300     {
 301         OIC_LOG(ERROR, TAG, "Failed to Initialize Queue Handle");
 302         CATerminateIP();
 303         return CA_STATUS_FAILED;
 304     }
 305
 306     // Start send queue thread
 307     if (CA_STATUS_OK != CAQueueingThreadStart(g_sendQueueHandle))
 308     {
 309         OIC_LOG(ERROR, TAG, "Failed to Start Send Data Thread");
 310         return CA_STATUS_FAILED;
 311     }
 312
 313     CAResult_t ret = CAIPStartServer((const ca_thread_pool_t)caglobals.ip.threadpool);
 314     if (CA_STATUS_OK != ret)
 315     {
 316         OIC_LOG_V(ERROR, TAG, "Failed to start server![%d]", ret);
 317         return ret;
 318     }
 319
 320 #endif
 321
 322     OIC_LOG(DEBUG, TAG, "OUT");
 323     return CA_STATUS_OK;
 324 }
 325
 326 CAResult_t CAStartIPListeningServer()
 327 {
 328     OIC_LOG(DEBUG, TAG, "IN");
 329
 330     OIC_LOG(DEBUG, TAG, "OUT");
 331     return CA_STATUS_OK;
 332 }
 333
 334 CAResult_t CAStartIPDiscoveryServer()
 335 {
 336     OIC_LOG(DEBUG, TAG, "IN");
 337     return CAStartIPListeningServer();
 338 }
 339
 340 static int32_t CAQueueIPData(bool isMulticast, const CAEndpoint_t *endpoint,
 341                             const void *data, uint32_t dataLength)
 342 {
 343     OIC_LOG(DEBUG, TAG, "IN");
 344
 345     VERIFY_NON_NULL_RET(endpoint, TAG, "remoteEndpoint", -1);
 346     VERIFY_NON_NULL_RET(data, TAG, "data", -1);
 347
 348     if (0 == dataLength)
 349     {
 350         OIC_LOG(ERROR, TAG, "Invalid Data Length");
 351         return -1;
 352     }
 353
 354 #ifdef SINGLE_THREAD
 355
 356     CAIPSendData(endpoint, data, dataLength, isMulticast);
 357     return dataLength;
 358
 359 #else
 360
 361     VERIFY_NON_NULL_RET(g_sendQueueHandle, TAG, "sendQueueHandle", -1);
 362     // Create IPData to add to queue
 363     CAIPData *ipData = CACreateIPData(endpoint, data, dataLength, isMulticast);
 364     if (!ipData)
 365     {
 366         OIC_LOG(ERROR, TAG, "Failed to create ipData!");
 367         return -1;
 368     }
 369     // Add message to send queue
 370     CAQueueingThreadAddData(g_sendQueueHandle, ipData, sizeof(CAIPData));
 371
 372     OIC_LOG(DEBUG, TAG, "OUT");
 373     return dataLength;
 374
 375 #endif // SINGLE_THREAD
 376 }
 377
 378 int32_t CASendIPUnicastData(const CAEndpoint_t *endpoint,
 379                             const void *data, uint32_t dataLength)
 380 {
 381     OIC_LOG(DEBUG, TAG, "IN");
 382     return CAQueueIPData(false, endpoint, data, dataLength);
 383 }
 384
 385 int32_t CASendIPMulticastData(const CAEndpoint_t *endpoint, const void *data, uint32_t dataLength)
 386 {
 387     OIC_LOG(DEBUG, TAG, "IN");
 388     return CAQueueIPData(true, endpoint, data, dataLength);
 389 }
 390
 391 CAResult_t CAReadIPData()
 392 {
 393     OIC_LOG(DEBUG, TAG, "IN");
 394     CAIPPullData();
 395     OIC_LOG(DEBUG, TAG, "OUT");
 396     return CA_STATUS_OK;
 397 }
 398
 399 CAResult_t CAStopIP()
 400 {
 401     OIC_LOG(DEBUG, TAG, "IN");
 402
 403 #ifdef __WITH_DTLS__
 404     CAAdapterNetDtlsDeInit();
 405 #endif
 406
 407 #ifndef SINGLE_THREAD
 408     if (g_sendQueueHandle && g_sendQueueHandle->threadMutex)
 409     {
 410         CAQueueingThreadStop(g_sendQueueHandle);
 411     }
 412
 413     CAIPDeinitializeQueueHandles();
 414 #endif
 415
 416     CAIPStopServer();
 417
 418     OIC_LOG(DEBUG, TAG, "OUT");
 419     return CA_STATUS_OK;
 420 }
 421
 422 void CATerminateIP()
 423 {
 424     OIC_LOG(DEBUG, TAG, "IN");
 425
 426 #ifdef __WITH_DTLS__
 427     CADTLSSetAdapterCallbacks(NULL, NULL, 0);
 428 #endif
 429
 430     CAIPSetPacketReceiveCallback(NULL);
 431
 432 #ifndef SINGLE_THREAD
 433     CAIPDeinitializeQueueHandles();
 434 #endif
 435
 436     OIC_LOG(DEBUG, TAG, "OUT");
 437 }
 438
 439 #ifndef SINGLE_THREAD
 440
 441 void CAIPSendDataThread(void *threadData)
 442 {
 443     OIC_LOG(DEBUG, TAG, "IN");
 444
 445     CAIPData *ipData = (CAIPData *) threadData;
 446     if (!ipData)
 447     {
 448         OIC_LOG(DEBUG, TAG, "Invalid ip data!");
 449         return;
 450     }
 451
 452     if (ipData->isMulticast)
 453     {
 454         //Processing for sending multicast
 455         OIC_LOG(DEBUG, TAG, "Send Multicast Data is called");
 456         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, true);
 457     }
 458     else
 459     {
 460         //Processing for sending unicast
 461 #ifdef __WITH_DTLS__
 462         if (ipData->remoteEndpoint->flags & CA_SECURE)
 463         {
 464             OIC_LOG(DEBUG, TAG, "CAAdapterNetDtlsEncrypt called!");
 465             CAResult_t result = CAAdapterNetDtlsEncrypt(ipData->remoteEndpoint,
 466                                                ipData->data, ipData->dataLen);
 467             if (CA_STATUS_OK != result)
 468             {
 469                 OIC_LOG(ERROR, TAG, "CAAdapterNetDtlsEncrypt failed!");
 470             }
 471             OIC_LOG_V(DEBUG, TAG,
 472                       "CAAdapterNetDtlsEncrypt returned with result[%d]", result);
 473         }
 474         else
 475         {
 476             OIC_LOG(DEBUG, TAG, "Send Unicast Data is called");
 477             CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 478         }
 479 #else
 480         CAIPSendData(ipData->remoteEndpoint, ipData->data, ipData->dataLen, false);
 481 #endif
 482     }
 483
 484     OIC_LOG(DEBUG, TAG, "OUT");
 485 }
 486
 487 #endif
 488
 489 #ifndef SINGLE_THREAD
 490
 491 CAIPData *CACreateIPData(const CAEndpoint_t *remoteEndpoint, const void *data,
 492                                      uint32_t dataLength, bool isMulticast)
 493 {
 494     VERIFY_NON_NULL_RET(data, TAG, "IPData is NULL", NULL);
 495
 496     CAIPData *ipData = (CAIPData *) OICMalloc(sizeof(CAIPData));
 497     if (!ipData)
 498     {
 499         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 500         return NULL;
 501     }
 502
 503     ipData->remoteEndpoint = CACloneEndpoint(remoteEndpoint);
 504     ipData->data = (void *) OICMalloc(dataLength);
 505     if (!ipData->data)
 506     {
 507         OIC_LOG(ERROR, TAG, "Memory allocation failed!");
 508         CAFreeIPData(ipData);
 509         return NULL;
 510     }
 511
 512     memcpy(ipData->data, data, dataLength);
 513     ipData->dataLen = dataLength;
 514
 515     ipData->isMulticast = isMulticast;
 516
 517     return ipData;
 518 }
 519
 520 void CAFreeIPData(CAIPData *ipData)
 521 {
 522     VERIFY_NON_NULL_VOID(ipData, TAG, "ipData is NULL");
 523
 524     CAFreeEndpoint(ipData->remoteEndpoint);
 525     OICFree(ipData->data);
 526     OICFree(ipData);
 527 }
 528
 529 void CADataDestroyer(void *data, uint32_t size)
 530 {
 531     CAIPData *etdata = (CAIPData *) data;
 532
 533     CAFreeIPData(etdata);
 534 }
 535
 536 #endif // SINGLE_THREAD