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;
39 static int IPV4_ADDR_SIZE = 16;
41 static const char * TEST_APP_UNICAST_DISCOVERY_QUERY = "coap://0.0.0.0:5683/oc/core";
43 static std::string putPayload = "{\"state\":\"off\",\"power\":10}";
44 static std::string coapServerIP;
45 static std::string coapServerPort;
46 static std::string coapServerResource;
47 static int coapSecureResource;
49 //File containing Client's Identity and the PSK credentials
50 //of other devices which the client trusts
51 //This can be generated using 'gen_sec_bin' application
52 static char CRED_FILE[] = "client_cred.bin";
57 /* SIGINT handler: set gQuitFlag to 1 for graceful termination */
58 void handleSigInt(int signum)
66 static void PrintUsage()
68 OC_LOG(INFO, TAG, "Usage : occlient -u <0|1> -t <1|2|3>");
69 OC_LOG(INFO, TAG, "-u <0|1> : Perform multicast/unicast discovery of resources");
70 OC_LOG(INFO, TAG, "-t 1 : Discover Resources");
71 OC_LOG(INFO, TAG, "-t 2 : Discover Resources and"
72 " Initiate Nonconfirmable Get/Put/Post Requests");
73 OC_LOG(INFO, TAG, "-t 3 : Discover Resources and Initiate Confirmable Get/Put/Post Requests");
76 OCStackResult InvokeOCDoResource(std::ostringstream &query,
77 OCMethod method, OCQualityOfService qos,
78 OCClientResponseHandler cb, OCHeaderOption * options, uint8_t numOptions)
81 OCCallbackData cbData;
85 cbData.context = NULL;
88 ret = OCDoResource(&handle, method, query.str().c_str(), 0,
89 (method == OC_REST_PUT || method == OC_REST_POST) ? putPayload.c_str() : NULL,
93 qos, &cbData, options, numOptions);
95 if (ret != OC_STACK_OK)
97 OC_LOG_V(ERROR, TAG, "OCDoResource returns error %d with method %d", ret, method);
103 OCStackApplicationResult putReqCB(void* ctx, OCDoHandle handle, OCClientResponse * clientResponse)
105 OC_LOG(INFO, TAG, "Callback Context for PUT recvd successfully");
109 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
110 OC_LOG_V(INFO, TAG, "JSON = %s =============> Put Response", clientResponse->resJSONPayload);
112 return OC_STACK_DELETE_TRANSACTION;
115 OCStackApplicationResult postReqCB(void *ctx, OCDoHandle handle, OCClientResponse *clientResponse)
117 OC_LOG(INFO, TAG, "Callback Context for POST recvd successfully");
121 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
122 OC_LOG_V(INFO, TAG, "JSON = %s =============> Post Response",
123 clientResponse->resJSONPayload);
125 return OC_STACK_DELETE_TRANSACTION;
128 OCStackApplicationResult getReqCB(void* ctx, OCDoHandle handle, OCClientResponse * clientResponse)
130 OC_LOG(INFO, TAG, "Callback Context for GET query recvd successfully");
134 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
135 OC_LOG_V(INFO, TAG, "SEQUENCE NUMBER: %d", clientResponse->sequenceNumber);
136 OC_LOG_V(INFO, TAG, "JSON = %s =============> Get Response",
137 clientResponse->resJSONPayload);
139 return OC_STACK_DELETE_TRANSACTION;
142 // This is a function called back when a device is discovered
143 OCStackApplicationResult discoveryReqCB(void* ctx, OCDoHandle handle,
144 OCClientResponse * clientResponse)
146 uint8_t remoteIpAddr[4];
147 uint16_t remotePortNu;
149 OC_LOG(INFO, TAG, "Callback Context for DISCOVER query recvd successfully");
153 OC_LOG_V(INFO, TAG, "StackResult: %s", getResult(clientResponse->result));
155 OCDevAddrToIPv4Addr((OCDevAddr *) clientResponse->addr, remoteIpAddr,
156 remoteIpAddr + 1, remoteIpAddr + 2, remoteIpAddr + 3);
157 OCDevAddrToPort((OCDevAddr *) clientResponse->addr, &remotePortNu);
160 "Device =============> Discovered %s @ %d.%d.%d.%d:%d",
161 clientResponse->resJSONPayload, remoteIpAddr[0], remoteIpAddr[1],
162 remoteIpAddr[2], remoteIpAddr[3], remotePortNu);
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 /* Start a discovery query*/
245 char szQueryUri[MAX_URI_LENGTH] = { 0 };
247 if (UNICAST_DISCOVERY)
250 char ipv4addr[IPV4_ADDR_SIZE];
252 printf("Enter IPv4 address of the Server hosting secure resource (Ex: 11.12.13.14)\n");
253 fgets(ipv4addr, IPV4_ADDR_SIZE, stdin);
254 snprintf(szQueryUri, sizeof(szQueryUri), "coap://%s:5683/oc/core", ipv4addr);
256 strcpy(szQueryUri, TEST_APP_UNICAST_DISCOVERY_QUERY);
261 strcpy(szQueryUri, OC_WELL_KNOWN_QUERY);
263 cbData.cb = discoveryReqCB;
264 cbData.context = NULL;
266 ret = OCDoResource(&handle, OC_REST_GET, szQueryUri, 0, 0,
270 OC_LOW_QOS, &cbData, NULL, 0);
271 if (ret != OC_STACK_OK)
273 OC_LOG(ERROR, TAG, "OCStack resource error");
278 int main(int argc, char* argv[])
280 uint8_t addr[20] = {0};
281 uint8_t* paddr = NULL;
282 uint16_t port = USE_RANDOM_PORT;
283 uint8_t ifname[] = "eth0";
285 struct timespec timeout;
287 while ((opt = getopt(argc, argv, "u:t:")) != -1)
292 UNICAST_DISCOVERY = atoi(optarg);
295 TEST_CASE = atoi(optarg);
303 if ((UNICAST_DISCOVERY != 0 && UNICAST_DISCOVERY != 1) ||
304 (TEST_CASE < TEST_DISCOVER_REQ || TEST_CASE >= MAX_TESTS) )
311 /*Get Ip address on defined interface and initialize coap on it with random port number
312 * this port number will be used as a source port in all coap communications*/
313 if ( OCGetInterfaceAddress(ifname, sizeof(ifname), AF_INET, addr,
314 sizeof(addr)) == ERR_SUCCESS)
316 OC_LOG_V(INFO, TAG, "Starting occlient on address %s",addr);
320 /* Initialize OCStack*/
321 if (OCInit((char *) paddr, port, OC_CLIENT) != OC_STACK_OK)
323 OC_LOG(ERROR, TAG, "OCStack init error");
328 * Read DTLS PSK credentials from persistent storage and
329 * set in the OC stack.
331 if (SetCredentials(CRED_FILE) != OC_STACK_OK)
333 OC_LOG(ERROR, TAG, "SetCredentials failed");
340 timeout.tv_nsec = 100000000L;
342 // Break from loop with Ctrl+C
343 OC_LOG(INFO, TAG, "Entering occlient main loop...");
344 signal(SIGINT, handleSigInt);
347 if (OCProcess() != OC_STACK_OK)
349 OC_LOG(ERROR, TAG, "OCStack process error");
353 nanosleep(&timeout, NULL);
355 OC_LOG(INFO, TAG, "Exiting occlient main loop...");
357 if (OCStop() != OC_STACK_OK)
359 OC_LOG(ERROR, TAG, "OCStack stop error");
365 std::string getIPAddrTBServer(OCClientResponse * clientResponse)
367 if(!clientResponse) return "";
368 if(!clientResponse->addr) return "";
369 uint8_t a, b, c, d = 0;
370 if(0 != OCDevAddrToIPv4Addr(clientResponse->addr, &a, &b, &c, &d) ) return "";
372 char ipaddr[16] = {'\0'};
373 // ostringstream not working correctly here, hence snprintf
374 snprintf(ipaddr, sizeof(ipaddr), "%d.%d.%d.%d", a,b,c,d);
375 return std::string (ipaddr);
379 std::string getPortTBServer(OCClientResponse * clientResponse)
381 if(!clientResponse) return "";
382 if(!clientResponse->addr) return "";
384 if(0 != OCDevAddrToPort(clientResponse->addr, &p) ) return "";
385 std::ostringstream ss;
390 int parseClientResponse(OCClientResponse * clientResponse)
396 // Initialize all global variables
397 coapServerResource.clear();
398 coapServerPort.clear();
399 coapServerIP.clear();
400 coapSecureResource = 0;
402 root = cJSON_Parse((char *)(clientResponse->resJSONPayload));
408 oc = cJSON_GetObjectItem(root,"oc");
414 if (oc->type == cJSON_Array)
416 if (cJSON_GetArraySize(oc) > 0)
418 cJSON * resource = cJSON_GetArrayItem(oc, 0);
419 if (cJSON_GetObjectItem(resource, "href"))
421 coapServerResource.assign(cJSON_GetObjectItem(resource, "href")->valuestring);
425 coapServerResource = "";
427 OC_LOG_V(INFO, TAG, "Uri -- %s", coapServerResource.c_str());
429 cJSON * prop = cJSON_GetObjectItem(resource,"prop");
432 // If this is a secure resource, the info about the port at which the
433 // resource is hosted on server is embedded inside discovery JSON response
434 if (cJSON_GetObjectItem(prop, "sec"))
436 if ((cJSON_GetObjectItem(prop, "sec")->valueint) == 1)
438 coapSecureResource = 1;
441 OC_LOG_V(INFO, TAG, "Secure -- %s", coapSecureResource == 1 ? "YES" : "NO");
442 if (cJSON_GetObjectItem(prop, "port"))
444 port = cJSON_GetObjectItem(prop, "port")->valueint;
445 OC_LOG_V(INFO, TAG, "Hosting Server Port (embedded inside JSON) -- %u", port);
447 std::ostringstream ss;
449 coapServerPort = ss.str();
456 coapServerIP = getIPAddrTBServer(clientResponse);
459 coapServerPort = getPortTBServer(clientResponse);
460 OC_LOG_V(INFO, TAG, "Hosting Server Port -- %s", coapServerPort.c_str());