1 //******************************************************************
3 // Copyright 2014 Intel Mobile Communications GmbH All Rights Reserved.
5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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
11 // http://www.apache.org/licenses/LICENSE-2.0
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.
19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
30 #include "occlientbasicops.h"
34 #define TAG "occlientbasicops"
35 static int UNICAST_DISCOVERY = 0;
36 static int TEST_CASE = 0;
38 static int IPV4_ADDR_SIZE = 16;
39 static char UNICAST_DISCOVERY_QUERY[] = "coap://%s:5298/oc/core";
40 static char MULTICAST_DISCOVERY_QUERY[] = "/oc/core";
42 static std::string putPayload = "{\"state\":\"off\",\"power\":10}";
43 static std::string coapServerIP;
44 static std::string coapServerPort;
45 static std::string coapServerResource;
46 static int coapSecureResource;
47 static OCConnectivityType ocConnType;
50 //File containing Client's Identity and the PSK credentials
51 //of other devices which the client trusts
52 //This can be generated using 'gen_sec_bin' application
53 static char CRED_FILE[] = "client_cred.bin";
58 /* SIGINT handler: set gQuitFlag to 1 for graceful termination */
59 void handleSigInt(int signum)
67 static void PrintUsage()
69 OC_LOG(INFO, TAG, "Usage : occlient -u <0|1> -t <1|2|3>");
70 OC_LOG(INFO, TAG, "-u <0|1> : Perform multicast/unicast discovery of resources");
71 OC_LOG(INFO, TAG, "-t 1 : Discover Resources");
72 OC_LOG(INFO, TAG, "-t 2 : Discover Resources and"
73 " Initiate Nonconfirmable Get/Put/Post Requests");
74 OC_LOG(INFO, TAG, "-t 3 : Discover Resources and Initiate Confirmable Get/Put/Post Requests");
77 OCStackResult InvokeOCDoResource(std::ostringstream &query,
78 OCMethod method, OCQualityOfService qos,
79 OCClientResponseHandler cb, OCHeaderOption * options, uint8_t numOptions)
82 OCCallbackData cbData;
86 cbData.context = NULL;
89 ret = OCDoResource(&handle, method, query.str().c_str(), 0,
90 (method == OC_REST_PUT || method == OC_REST_POST) ? putPayload.c_str() : NULL,
91 ocConnType, qos, &cbData, options, numOptions);
93 if (ret != OC_STACK_OK)
95 OC_LOG_V(ERROR, TAG, "OCDoResource returns error %d with method %d", ret, method);
101 OCStackApplicationResult putReqCB(void* ctx, OCDoHandle handle, OCClientResponse * clientResponse)
103 OC_LOG(INFO, TAG, "Callback Context for PUT recvd successfully");
107 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
108 OC_LOG_V(INFO, TAG, "JSON = %s =============> Put Response", clientResponse->resJSONPayload);
110 return OC_STACK_DELETE_TRANSACTION;
113 OCStackApplicationResult postReqCB(void *ctx, OCDoHandle handle, OCClientResponse *clientResponse)
115 OC_LOG(INFO, TAG, "Callback Context for POST recvd successfully");
119 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
120 OC_LOG_V(INFO, TAG, "JSON = %s =============> Post Response",
121 clientResponse->resJSONPayload);
123 return OC_STACK_DELETE_TRANSACTION;
126 OCStackApplicationResult getReqCB(void* ctx, OCDoHandle handle, OCClientResponse * clientResponse)
128 OC_LOG(INFO, TAG, "Callback Context for GET query recvd successfully");
132 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
133 OC_LOG_V(INFO, TAG, "SEQUENCE NUMBER: %d", clientResponse->sequenceNumber);
134 OC_LOG_V(INFO, TAG, "JSON = %s =============> Get Response",
135 clientResponse->resJSONPayload);
137 return OC_STACK_DELETE_TRANSACTION;
140 // This is a function called back when a device is discovered
141 OCStackApplicationResult discoveryReqCB(void* ctx, OCDoHandle handle,
142 OCClientResponse * clientResponse)
144 uint8_t remoteIpAddr[4];
145 uint16_t remotePortNu;
147 OC_LOG(INFO, TAG, "Callback Context for DISCOVER query recvd successfully");
151 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
153 OCDevAddrToIPv4Addr((OCDevAddr *) clientResponse->addr, remoteIpAddr,
154 remoteIpAddr + 1, remoteIpAddr + 2, remoteIpAddr + 3);
155 OCDevAddrToPort((OCDevAddr *) clientResponse->addr, &remotePortNu);
158 "Device =============> Discovered %s @ %d.%d.%d.%d:%d",
159 clientResponse->resJSONPayload, remoteIpAddr[0], remoteIpAddr[1],
160 remoteIpAddr[2], remoteIpAddr[3], remotePortNu);
162 ocConnType = clientResponse->connType;
164 if (parseClientResponse(clientResponse) != -1)
168 case TEST_NON_CON_OP:
169 InitGetRequest(OC_LOW_QOS);
171 //InitPostRequest(OC_LOW_QOS);
174 InitGetRequest(OC_HIGH_QOS);
176 //InitPostRequest(OC_HIGH_QOS);
182 return (UNICAST_DISCOVERY) ? OC_STACK_DELETE_TRANSACTION : OC_STACK_KEEP_TRANSACTION ;
188 OC_LOG_V(INFO, TAG, "\n\nExecuting %s", __func__);
189 std::ostringstream query;
190 query << (coapSecureResource ? "coaps://" : "coap://") << coapServerIP
191 << ":" << coapServerPort << coapServerResource;
192 return (InvokeOCDoResource(query, OC_REST_PUT, OC_LOW_QOS, putReqCB, NULL, 0));
195 int InitPostRequest(OCQualityOfService qos)
197 OCStackResult result;
198 OC_LOG_V(INFO, TAG, "\n\nExecuting %s", __func__);
199 std::ostringstream query;
200 query << (coapSecureResource ? "coaps://" : "coap://") << coapServerIP
201 << ":" << coapServerPort << coapServerResource;
203 // First POST operation (to create an LED instance)
204 result = InvokeOCDoResource(query, OC_REST_POST,
205 ((qos == OC_HIGH_QOS) ? OC_HIGH_QOS: OC_LOW_QOS),
207 if (OC_STACK_OK != result)
209 // Error can happen if for example, network connectivity is down
210 OC_LOG(INFO, TAG, "First POST call did not succeed");
213 // Second POST operation (to create an LED instance)
214 result = InvokeOCDoResource(query, OC_REST_POST,
215 ((qos == OC_HIGH_QOS) ? OC_HIGH_QOS: OC_LOW_QOS),
217 if (OC_STACK_OK != result)
219 OC_LOG(INFO, TAG, "Second POST call did not succeed");
222 // This POST operation will update the original resourced /a/led
223 return (InvokeOCDoResource(query, OC_REST_POST,
224 ((qos == OC_HIGH_QOS) ? OC_HIGH_QOS: OC_LOW_QOS),
225 postReqCB, NULL, 0));
228 int InitGetRequest(OCQualityOfService qos)
230 OC_LOG_V(INFO, TAG, "\n\nExecuting %s", __func__);
231 std::ostringstream query;
232 query << (coapSecureResource ? "coaps://" : "coap://") << coapServerIP
233 << ":" << coapServerPort << coapServerResource;
235 return (InvokeOCDoResource(query, OC_REST_GET, (qos == OC_HIGH_QOS)?
236 OC_HIGH_QOS:OC_LOW_QOS, getReqCB, NULL, 0));
242 OCCallbackData cbData;
244 char szQueryUri[MAX_URI_LENGTH] = { 0 };
245 OCConnectivityType discoveryReqConnType;
247 if (UNICAST_DISCOVERY)
249 char ipv4addr[IPV4_ADDR_SIZE];
250 printf("Enter IPv4 address of the Server hosting secure resource (Ex: 11.12.13.14)\n");
251 if (fgets(ipv4addr, IPV4_ADDR_SIZE, stdin))
253 //Strip newline char from ipv4addr
254 StripNewLineChar(ipv4addr);
255 snprintf(szQueryUri, sizeof(szQueryUri), UNICAST_DISCOVERY_QUERY, ipv4addr);
259 OC_LOG(ERROR, TAG, "!! Bad input for IPV4 address. !!");
260 return OC_STACK_INVALID_PARAM;
262 printf("Select Connectivity type on which discovery request needs to be send : ");
263 printf("0:ETH, 1:WIFI\n");
264 discoveryReqConnType = ((getchar() - '0') == 0) ? OC_ETHERNET : OC_WIFI;
268 //Send discovery request on Wifi and Ethernet interface
269 discoveryReqConnType = OC_ALL;
270 strcpy(szQueryUri, MULTICAST_DISCOVERY_QUERY);
273 cbData.cb = discoveryReqCB;
274 cbData.context = NULL;
277 /* Start a discovery query*/
278 OC_LOG_V(INFO, TAG, "Initiating %s Resource Discovery : %s\n",
279 (UNICAST_DISCOVERY) ? "Unicast" : "Multicast",
282 ret = OCDoResource(&handle, OC_REST_GET, szQueryUri, 0, 0,
283 discoveryReqConnType, OC_LOW_QOS, &cbData, NULL, 0);
284 if (ret != OC_STACK_OK)
286 OC_LOG(ERROR, TAG, "OCStack resource error");
291 int main(int argc, char* argv[])
294 struct timespec timeout;
296 while ((opt = getopt(argc, argv, "u:t:")) != -1)
301 UNICAST_DISCOVERY = atoi(optarg);
304 TEST_CASE = atoi(optarg);
312 if ((UNICAST_DISCOVERY != 0 && UNICAST_DISCOVERY != 1) ||
313 (TEST_CASE < TEST_DISCOVER_REQ || TEST_CASE >= MAX_TESTS) )
319 /* Initialize OCStack*/
320 if (OCInit(NULL, 0, OC_CLIENT) != OC_STACK_OK)
322 OC_LOG(ERROR, TAG, "OCStack init error");
327 * Read DTLS PSK credentials from persistent storage and
328 * set in the OC stack.
330 if (SetCredentials(CRED_FILE) != OC_STACK_OK)
332 OC_LOG(ERROR, TAG, "SetCredentials failed");
339 timeout.tv_nsec = 100000000L;
341 // Break from loop with Ctrl+C
342 OC_LOG(INFO, TAG, "Entering occlient main loop...");
343 signal(SIGINT, handleSigInt);
346 if (OCProcess() != OC_STACK_OK)
348 OC_LOG(ERROR, TAG, "OCStack process error");
352 nanosleep(&timeout, NULL);
354 OC_LOG(INFO, TAG, "Exiting occlient main loop...");
356 if (OCStop() != OC_STACK_OK)
358 OC_LOG(ERROR, TAG, "OCStack stop error");
364 std::string getIPAddrTBServer(OCClientResponse * clientResponse)
366 if(!clientResponse) return "";
367 if(!clientResponse->addr) return "";
368 uint8_t a, b, c, d = 0;
369 if(0 != OCDevAddrToIPv4Addr(clientResponse->addr, &a, &b, &c, &d) ) return "";
371 char ipaddr[16] = {'\0'};
372 // ostringstream not working correctly here, hence snprintf
373 snprintf(ipaddr, sizeof(ipaddr), "%d.%d.%d.%d", a,b,c,d);
374 return std::string (ipaddr);
378 std::string getPortTBServer(OCClientResponse * clientResponse)
380 if(!clientResponse) return "";
381 if(!clientResponse->addr) return "";
383 if(0 != OCDevAddrToPort(clientResponse->addr, &p) ) return "";
384 std::ostringstream ss;
389 int parseClientResponse(OCClientResponse * clientResponse)
395 // Initialize all global variables
396 coapServerResource.clear();
397 coapServerPort.clear();
398 coapServerIP.clear();
399 coapSecureResource = 0;
401 root = cJSON_Parse((char *)(clientResponse->resJSONPayload));
407 oc = cJSON_GetObjectItem(root,"oc");
413 if (oc->type == cJSON_Array)
415 if (cJSON_GetArraySize(oc) > 0)
417 cJSON * resource = cJSON_GetArrayItem(oc, 0);
418 if (cJSON_GetObjectItem(resource, "href"))
420 coapServerResource.assign(cJSON_GetObjectItem(resource, "href")->valuestring);
424 coapServerResource = "";
426 OC_LOG_V(INFO, TAG, "Uri -- %s", coapServerResource.c_str());
428 cJSON * prop = cJSON_GetObjectItem(resource,"prop");
431 // If this is a secure resource, the info about the port at which the
432 // resource is hosted on server is embedded inside discovery JSON response
433 if (cJSON_GetObjectItem(prop, "sec"))
435 if ((cJSON_GetObjectItem(prop, "sec")->valueint) == 1)
437 coapSecureResource = 1;
440 OC_LOG_V(INFO, TAG, "Secure -- %s", coapSecureResource == 1 ? "YES" : "NO");
441 if (cJSON_GetObjectItem(prop, "port"))
443 port = cJSON_GetObjectItem(prop, "port")->valueint;
444 OC_LOG_V(INFO, TAG, "Hosting Server Port (embedded inside JSON) -- %u", port);
446 std::ostringstream ss;
448 coapServerPort = ss.str();
455 coapServerIP = getIPAddrTBServer(clientResponse);
458 coapServerPort = getPortTBServer(clientResponse);
459 OC_LOG_V(INFO, TAG, "Hosting Server Port -- %s", coapServerPort.c_str());