resource/csdk/connectivity/src/caconnectivitymanager.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
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <stdint.h>
  24 #include <stdbool.h>
  25
  26 #include "cainterface.h"
  27 #include "caremotehandler.h"
  28 #include "camessagehandler.h"
  29 #include "caprotocolmessage.h"
  30 #include "canetworkconfigurator.h"
  31 #include "cainterfacecontroller.h"
  32 #include "logger.h"
  33 #ifdef __WITH_DTLS__
  34 #include "caadapternetdtls.h"
  35 #endif
  36
  37 #ifdef TCP_ADAPTER
  38 #include "catcpadapter.h"
  39 #endif
  40
  41 #include "ocrandom.h"
  42
  43
  44 CAGlobals_t caglobals = { 0 };
  45
  46 #define TAG "CA_CONN_MGR"
  47
  48 static bool g_isInitialized = false;
  49
  50 #ifdef __WITH_DTLS__
  51 // CAAdapterNetDTLS will register the callback.
  52 // Taking callback all the way through adapters not the right approach, hence calling here.
  53 extern void CADTLSSetCredentialsCallback(CAGetDTLSPskCredentialsHandler credCallback);
  54 #endif
  55
  56 #ifdef __WITH_X509__
  57 // CAAdapterNetDTLS will register the callback.
  58 // Taking callback all the way through adapters not the right approach, hence calling here.
  59 extern void CADTLSSetX509CredentialsCallback(CAGetDTLSX509CredentialsHandler credCallback);
  60 extern void CADTLSSetCrlCallback(CAGetDTLSCrlHandler crlCallback);
  61 #endif
  62
  63 CAResult_t CAInitialize()
  64 {
  65     OIC_LOG(DEBUG, TAG, "CAInitialize");
  66
  67     if (!g_isInitialized)
  68     {
  69         if (0 != OCSeedRandom())
  70         {
  71             OIC_LOG(ERROR, TAG, "Seed Random Failed");
  72         }
  73
  74         CAResult_t res = CAInitializeMessageHandler();
  75         if (res != CA_STATUS_OK)
  76         {
  77             OIC_LOG(ERROR, TAG, "CAInitialize has failed");
  78             return res;
  79         }
  80         g_isInitialized = true;
  81     }
  82
  83     return CA_STATUS_OK;
  84 }
  85
  86 void CATerminate()
  87 {
  88     OIC_LOG(DEBUG, TAG, "CATerminate");
  89
  90     if (g_isInitialized)
  91     {
  92         CATerminateMessageHandler();
  93         CATerminateNetworkType();
  94
  95         g_isInitialized = false;
  96     }
  97 }
  98
  99 CAResult_t CAStartListeningServer()
 100 {
 101     OIC_LOG(DEBUG, TAG, "CAStartListeningServer");
 102
 103     if(!g_isInitialized)
 104     {
 105         return CA_STATUS_NOT_INITIALIZED;
 106     }
 107
 108     return CAStartListeningServerAdapters();
 109 }
 110
 111 CAResult_t CAStopListeningServer()
 112 {
 113     OIC_LOG(DEBUG, TAG, "CAStopListeningServer");
 114
 115     if(!g_isInitialized)
 116     {
 117         return CA_STATUS_NOT_INITIALIZED;
 118     }
 119
 120     return CAStopListeningServerAdapters();
 121 }
 122
 123 CAResult_t CAStartDiscoveryServer()
 124 {
 125     OIC_LOG(DEBUG, TAG, "CAStartDiscoveryServer");
 126
 127     if(!g_isInitialized)
 128     {
 129         return CA_STATUS_NOT_INITIALIZED;
 130     }
 131
 132     return CAStartDiscoveryServerAdapters();
 133 }
 134
 135 void CARegisterHandler(CARequestCallback ReqHandler, CAResponseCallback RespHandler,
 136                        CAErrorCallback ErrorHandler)
 137 {
 138     OIC_LOG(DEBUG, TAG, "CARegisterHandler");
 139
 140     if(!g_isInitialized)
 141     {
 142         OIC_LOG(DEBUG, TAG, "CA is not initialized");
 143         return;
 144     }
 145
 146     CASetInterfaceCallbacks(ReqHandler, RespHandler, ErrorHandler);
 147 }
 148
 149 #ifdef __WITH_DTLS__
 150 CAResult_t CARegisterDTLSHandshakeCallback(CAErrorCallback dtlsHandshakeCallback)
 151 {
 152     OIC_LOG(DEBUG, TAG, "CARegisterDTLSHandshakeCallback");
 153
 154     if(!g_isInitialized)
 155     {
 156         return CA_STATUS_NOT_INITIALIZED;
 157     }
 158
 159     CADTLSSetHandshakeCallback(dtlsHandshakeCallback);
 160
 161     return CA_STATUS_OK;
 162 }
 163
 164 CAResult_t CARegisterDTLSCredentialsHandler(CAGetDTLSPskCredentialsHandler GetDTLSCredentialsHandler)
 165 {
 166     OIC_LOG(DEBUG, TAG, "CARegisterDTLSCredentialsHandler");
 167
 168     if(!g_isInitialized)
 169     {
 170         return CA_STATUS_NOT_INITIALIZED;
 171     }
 172
 173     CADTLSSetCredentialsCallback(GetDTLSCredentialsHandler);
 174     return CA_STATUS_OK;
 175 }
 176 #endif //__WITH_DTLS__
 177
 178 #ifdef __WITH_X509__
 179 CAResult_t CARegisterDTLSX509CredentialsHandler(CAGetDTLSX509CredentialsHandler GetDTLSX509CredentialsHandler)
 180 {
 181     OIC_LOG(DEBUG, TAG, "CARegisterDTLSX509CredentialsHandler");
 182
 183     if(!g_isInitialized)
 184     {
 185         return CA_STATUS_NOT_INITIALIZED;
 186     }
 187
 188     CADTLSSetX509CredentialsCallback(GetDTLSX509CredentialsHandler);
 189     return CA_STATUS_OK;
 190 }
 191
 192 CAResult_t CARegisterDTLSCrlHandler(CAGetDTLSCrlHandler GetDTLSCrlHandler)
 193 {
 194     OIC_LOG(DEBUG, TAG, "CARegisterDTLSCrlHandler");
 195
 196     if(!g_isInitialized)
 197     {
 198         return CA_STATUS_NOT_INITIALIZED;
 199     }
 200
 201     CADTLSSetCrlCallback(GetDTLSCrlHandler);
 202     return CA_STATUS_OK;
 203 }
 204 #endif //__WITH_X509__
 205
 206 CAResult_t CACreateEndpoint(CATransportFlags_t flags,
 207                             CATransportAdapter_t adapter,
 208                             const char *addr,
 209                             uint16_t port,
 210                             CAEndpoint_t **object)
 211 {
 212     if (!object)
 213     {
 214         OIC_LOG(ERROR, TAG, "Invalid Parameter");
 215         return CA_STATUS_INVALID_PARAM;
 216     }
 217
 218     CAEndpoint_t *endpoint = CACreateEndpointObject(flags, adapter, addr, port);
 219     if (!endpoint)
 220     {
 221         return CA_STATUS_FAILED;
 222     }
 223     *object = endpoint;
 224     return CA_STATUS_OK;
 225 }
 226
 227 void CADestroyEndpoint(CAEndpoint_t *rep)
 228 {
 229     OIC_LOG(DEBUG, TAG, "CADestroyEndpoint");
 230
 231     CAFreeEndpoint(rep);
 232 }
 233
 234 CAResult_t CAGenerateToken(CAToken_t *token, uint8_t tokenLength)
 235 {
 236     OIC_LOG(DEBUG, TAG, "CAGenerateToken");
 237
 238     return CAGenerateTokenInternal(token, tokenLength);
 239 }
 240
 241 void CADestroyToken(CAToken_t token)
 242 {
 243     OIC_LOG(DEBUG, TAG, "CADestroyToken");
 244
 245     CADestroyTokenInternal(token);
 246
 247     OIC_LOG(DEBUG, TAG, "OUT");
 248 }
 249
 250 CAResult_t CAGetNetworkInformation(CAEndpoint_t **info, uint32_t *size)
 251 {
 252     OIC_LOG(DEBUG, TAG, "CAGetNetworkInformation");
 253
 254     if(!g_isInitialized)
 255     {
 256         return CA_STATUS_NOT_INITIALIZED;
 257     }
 258
 259     return CAGetNetworkInformationInternal(info, size);
 260 }
 261
 262 CAResult_t CASendRequest(const CAEndpoint_t *object, const CARequestInfo_t *requestInfo)
 263 {
 264     OIC_LOG(DEBUG, TAG, "CASendRequest");
 265
 266     if(!g_isInitialized)
 267     {
 268         return CA_STATUS_NOT_INITIALIZED;
 269     }
 270
 271     return CADetachSendMessage(object, requestInfo, CA_REQUEST_DATA);
 272 }
 273
 274 CAResult_t CASendResponse(const CAEndpoint_t *object, const CAResponseInfo_t *responseInfo)
 275 {
 276     OIC_LOG(DEBUG, TAG, "CASendResponse");
 277
 278     if(!g_isInitialized)
 279     {
 280         return CA_STATUS_NOT_INITIALIZED;
 281     }
 282
 283     return CADetachSendMessage(object, responseInfo, CA_RESPONSE_DATA);
 284 }
 285
 286 CAResult_t CASelectNetwork(CATransportAdapter_t interestedNetwork)
 287 {
 288     OIC_LOG_V(DEBUG, TAG, "Selected network : %d", interestedNetwork);
 289
 290     if(!g_isInitialized)
 291     {
 292         return CA_STATUS_NOT_INITIALIZED;
 293     }
 294
 295     CAResult_t res = CA_STATUS_OK;
 296
 297     if (interestedNetwork & CA_ADAPTER_IP)
 298     {
 299         res = CAAddNetworkType(CA_ADAPTER_IP);
 300         OIC_LOG_V(DEBUG, TAG, "CAAddNetworkType(CA_IP_ADAPTER) function returns result: %d", res);
 301     }
 302     else if (interestedNetwork & CA_ADAPTER_RFCOMM_BTEDR)
 303     {
 304         res = CAAddNetworkType(CA_ADAPTER_RFCOMM_BTEDR);
 305         OIC_LOG_V(DEBUG, TAG, "CAAddNetworkType(CA_RFCOMM_ADAPTER) function returns result : %d", res);
 306     }
 307     else if (interestedNetwork & CA_ADAPTER_GATT_BTLE)
 308     {
 309         res = CAAddNetworkType(CA_ADAPTER_GATT_BTLE);
 310         OIC_LOG_V(DEBUG, TAG, "CAAddNetworkType(CA_GATT_ADAPTER) function returns result : %d", res);
 311     }
 312
 313 #ifdef RA_ADAPTER
 314     else if (interestedNetwork & CA_ADAPTER_REMOTE_ACCESS)
 315     {
 316         res = CAAddNetworkType(CA_ADAPTER_REMOTE_ACCESS);
 317         OIC_LOG_V(DEBUG, TAG,
 318                   "CAAddNetworkType(CA_ADAPTER_REMOTE_ACCESS) function returns result : %d", res);
 319     }
 320 #endif
 321
 322 #ifdef TCP_ADAPTER
 323     else if (interestedNetwork & CA_ADAPTER_TCP)
 324     {
 325         res = CAAddNetworkType(CA_ADAPTER_TCP);
 326         OIC_LOG_V(DEBUG, TAG,
 327                   "CAAddNetworkType(CA_ADAPTER_TCP) function returns result : %d", res);
 328     }
 329 #endif
 330
 331     else
 332     {
 333         res = CA_NOT_SUPPORTED;
 334     }
 335     return res;
 336 }
 337
 338 CAResult_t CAUnSelectNetwork(CATransportAdapter_t nonInterestedNetwork)
 339 {
 340     OIC_LOG_V(DEBUG, TAG, "unselected network : %d", nonInterestedNetwork);
 341
 342     if(!g_isInitialized)
 343     {
 344         return CA_STATUS_NOT_INITIALIZED;
 345     }
 346
 347     CAResult_t res = CA_STATUS_OK;
 348
 349     if (nonInterestedNetwork & CA_ADAPTER_IP)
 350     {
 351         res = CARemoveNetworkType(CA_ADAPTER_IP);
 352         OIC_LOG_V(DEBUG, TAG, "CARemoveNetworkType(CA_IP_ADAPTER) function returns result : %d", res);
 353     }
 354     else if (nonInterestedNetwork & CA_ADAPTER_RFCOMM_BTEDR)
 355     {
 356         res = CARemoveNetworkType(CA_ADAPTER_RFCOMM_BTEDR);
 357         OIC_LOG_V(DEBUG, TAG, "CARemoveNetworkType(CA_RFCOMM_ADAPTER) function returns result : %d", res);
 358     }
 359     else if (nonInterestedNetwork & CA_ADAPTER_GATT_BTLE)
 360     {
 361         res = CARemoveNetworkType(CA_ADAPTER_GATT_BTLE);
 362         OIC_LOG_V(DEBUG, TAG, "CARemoveNetworkType(CA_GATT_ADAPTER) function returns result : %d", res);
 363     }
 364 #ifdef RA_ADAPTER
 365     else if (nonInterestedNetwork & CA_ADAPTER_REMOTE_ACCESS)
 366     {
 367         res = CARemoveNetworkType(CA_ADAPTER_REMOTE_ACCESS);
 368         OIC_LOG_V(DEBUG, TAG, "CARemoveNetworkType(CA_ADAPTER_REMOTE_ACCESS) function returns result : %d",
 369                   res);
 370     }
 371 #endif
 372
 373
 374 #ifdef TCP_ADAPTER
 375     else if (nonInterestedNetwork & CA_ADAPTER_TCP)
 376     {
 377         res = CARemoveNetworkType(CA_ADAPTER_TCP);
 378         OIC_LOG_V(DEBUG, TAG, "CARemoveNetworkType(CA_ADAPTER_TCP) function returns result : %d",
 379                   res);
 380     }
 381 #endif
 382
 383     else
 384     {
 385         res = CA_STATUS_FAILED;
 386     }
 387     return res;
 388 }
 389
 390 CAResult_t CAHandleRequestResponse()
 391 {
 392     if (!g_isInitialized)
 393     {
 394         OIC_LOG(ERROR, TAG, "not initialized");
 395         return CA_STATUS_NOT_INITIALIZED;
 396     }
 397
 398     CAHandleRequestResponseCallbacks();
 399
 400     return CA_STATUS_OK;
 401 }
 402
 403 #ifdef __WITH_DTLS__
 404 CAResult_t CASelectCipherSuite(const uint16_t cipher)
 405 {
 406     OIC_LOG_V(DEBUG, TAG, "CASelectCipherSuite");
 407
 408     return CADtlsSelectCipherSuite(cipher);
 409 }
 410
 411 CAResult_t CAEnableAnonECDHCipherSuite(const bool enable)
 412 {
 413     OIC_LOG_V(DEBUG, TAG, "CAEnableAnonECDHCipherSuite");
 414
 415     return CADtlsEnableAnonECDHCipherSuite(enable);
 416 }
 417
 418 CAResult_t CAGenerateOwnerPSK(const CAEndpoint_t* endpoint,
 419                     const uint8_t* label, const size_t labelLen,
 420                     const uint8_t* rsrcServerDeviceID, const size_t rsrcServerDeviceIDLen,
 421                     const uint8_t* provServerDeviceID, const size_t provServerDeviceIDLen,
 422                     uint8_t* ownerPSK, const size_t ownerPSKSize)
 423 {
 424     OIC_LOG_V(DEBUG, TAG, "IN : CAGenerateOwnerPSK");
 425
 426     CAResult_t res = CA_STATUS_OK;
 427
 428     //newOwnerLabel and prevOwnerLabe can be NULL
 429     if (!endpoint || !label || 0 == labelLen || !ownerPSK || 0 == ownerPSKSize)
 430     {
 431         return CA_STATUS_INVALID_PARAM;
 432     }
 433
 434     res = CADtlsGenerateOwnerPSK(endpoint, label, labelLen,
 435                                   rsrcServerDeviceID, rsrcServerDeviceIDLen,
 436                                   provServerDeviceID, provServerDeviceIDLen,
 437                                   ownerPSK, ownerPSKSize);
 438     if (CA_STATUS_OK != res)
 439     {
 440         OIC_LOG_V(ERROR, TAG, "Failed to CAGenerateOwnerPSK : %d", res);
 441     }
 442
 443     OIC_LOG_V(DEBUG, TAG, "OUT : CAGenerateOwnerPSK");
 444
 445     return res;
 446 }
 447
 448 CAResult_t CAInitiateHandshake(const CAEndpoint_t *endpoint)
 449 {
 450     OIC_LOG_V(DEBUG, TAG, "IN : CAInitiateHandshake");
 451     CAResult_t res = CA_STATUS_OK;
 452
 453     if (!endpoint)
 454     {
 455         return CA_STATUS_INVALID_PARAM;
 456     }
 457
 458     res = CADtlsInitiateHandshake(endpoint);
 459     if (CA_STATUS_OK != res)
 460     {
 461         OIC_LOG_V(ERROR, TAG, "Failed to CADtlsInitiateHandshake : %d", res);
 462     }
 463
 464     OIC_LOG_V(DEBUG, TAG, "OUT : CAInitiateHandshake");
 465
 466     return res;
 467 }
 468
 469 CAResult_t CACloseDtlsSession(const CAEndpoint_t *endpoint)
 470 {
 471     OIC_LOG_V(DEBUG, TAG, "IN : CACloseDtlsSession");
 472     CAResult_t res = CA_STATUS_OK;
 473
 474     if (!endpoint)
 475     {
 476         return CA_STATUS_INVALID_PARAM;
 477     }
 478
 479     res = CADtlsClose(endpoint);
 480     if (CA_STATUS_OK != res)
 481     {
 482         OIC_LOG_V(ERROR, TAG, "Failed to CADtlsClose : %d", res);
 483     }
 484
 485     OIC_LOG_V(DEBUG, TAG, "OUT : CACloseDtlsSession");
 486
 487     return res;
 488 }
 489
 490 #endif /* __WITH_DTLS__ */