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30 | #include <assert.h>
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31 | #include <errno.h>
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32 | #include <signal.h>
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33 | #include <stdio.h>
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34 | #include <string.h>
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35 | #ifndef WIN32
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36 | #include <sys/select.h>
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37 | #include <sys/time.h>
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38 | #include <unistd.h>
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39 | #else
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40 | #include <winsock2.h>
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41 | #include <windows.h>
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42 | typedef int ssize_t;
|
43 | #endif
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44 |
|
45 | #include "mosquitto.h"
|
46 | #include "mosquitto_internal.h"
|
47 | #include "logging_mosq.h"
|
48 | #include "messages_mosq.h"
|
49 | #include "memory_mosq.h"
|
50 | #include "mqtt3_protocol.h"
|
51 | #include "net_mosq.h"
|
52 | #include "read_handle.h"
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53 | #include "send_mosq.h"
|
54 | #include "time_mosq.h"
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55 | #include "tls_mosq.h"
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56 | #include "util_mosq.h"
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57 | #include "will_mosq.h"
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58 |
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59 | #if !defined(WIN32) && !defined(__SYMBIAN32__)
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60 | #define HAVE_PSELECT
|
61 | #endif
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62 |
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63 | void _mosquitto_destroy(struct mosquitto *mosq);
|
64 | static int _mosquitto_reconnect(struct mosquitto *mosq, bool blocking);
|
65 | static int _mosquitto_connect_init(struct mosquitto *mosq, const char *host, int port, int keepalive, const char *bind_address);
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66 |
|
67 | int mosquitto_lib_version(int *major, int *minor, int *revision)
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68 | {
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69 | if(major) *major = LIBMOSQUITTO_MAJOR;
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70 | if(minor) *minor = LIBMOSQUITTO_MINOR;
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71 | if(revision) *revision = LIBMOSQUITTO_REVISION;
|
72 | return LIBMOSQUITTO_VERSION_NUMBER;
|
73 | }
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74 |
|
75 | int mosquitto_lib_init(void)
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76 | {
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77 | #ifdef WIN32
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78 | srand(GetTickCount());
|
79 | #else
|
80 | struct timeval tv;
|
81 |
|
82 | gettimeofday(&tv, NULL);
|
83 | srand(tv.tv_sec*1000 + tv.tv_usec/1000);
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84 | #endif
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85 |
|
86 | _mosquitto_net_init();
|
87 |
|
88 | return MOSQ_ERR_SUCCESS;
|
89 | }
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90 |
|
91 | int mosquitto_lib_cleanup(void)
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92 | {
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93 | _mosquitto_net_cleanup();
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94 |
|
95 | return MOSQ_ERR_SUCCESS;
|
96 | }
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97 |
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98 | struct mosquitto *mosquitto_new(const char *id, bool clean_session, void *userdata)
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99 | {
|
100 | struct mosquitto *mosq = NULL;
|
101 | int rc;
|
102 |
|
103 | if(clean_session == false && id == NULL){
|
104 | errno = EINVAL;
|
105 | return NULL;
|
106 | }
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107 |
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108 | #ifndef WIN32
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109 | signal(SIGPIPE, SIG_IGN);
|
110 | #endif
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111 |
|
112 | mosq = (struct mosquitto *)_mosquitto_calloc(1, sizeof(struct mosquitto));
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113 | if(mosq){
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114 | mosq->sock = INVALID_SOCKET;
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115 | mosq->sockpairR = INVALID_SOCKET;
|
116 | mosq->sockpairW = INVALID_SOCKET;
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117 | #ifdef WITH_THREADING
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118 | mosq->thread_id = pthread_self();
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119 | #endif
|
120 | rc = mosquitto_reinitialise(mosq, id, clean_session, userdata);
|
121 | if(rc){
|
122 | mosquitto_destroy(mosq);
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123 | if(rc == MOSQ_ERR_INVAL){
|
124 | errno = EINVAL;
|
125 | }else if(rc == MOSQ_ERR_NOMEM){
|
126 | errno = ENOMEM;
|
127 | }
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128 | return NULL;
|
129 | }
|
130 | }else{
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131 | errno = ENOMEM;
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132 | }
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133 | return mosq;
|
134 | }
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135 |
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136 | int mosquitto_reinitialise(struct mosquitto *mosq, const char *id, bool clean_session, void *userdata)
|
137 | {
|
138 | int i;
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139 |
|
140 | if(!mosq) return MOSQ_ERR_INVAL;
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141 |
|
142 | if(clean_session == false && id == NULL){
|
143 | return MOSQ_ERR_INVAL;
|
144 | }
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145 |
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146 | _mosquitto_destroy(mosq);
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147 | memset(mosq, 0, sizeof(struct mosquitto));
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148 |
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149 | if(userdata){
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150 | mosq->userdata = userdata;
|
151 | }else{
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152 | mosq->userdata = mosq;
|
153 | }
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154 | mosq->sock = INVALID_SOCKET;
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155 | mosq->sockpairR = INVALID_SOCKET;
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156 | mosq->sockpairW = INVALID_SOCKET;
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157 | mosq->keepalive = 60;
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158 | mosq->message_retry = 20;
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159 | mosq->last_retry_check = 0;
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160 | mosq->clean_session = clean_session;
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161 | if(id){
|
162 | if(strlen(id) == 0){
|
163 | return MOSQ_ERR_INVAL;
|
164 | }
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165 | mosq->id = _mosquitto_strdup(id);
|
166 | }else{
|
167 | mosq->id = (char *)_mosquitto_calloc(24, sizeof(char));
|
168 | if(!mosq->id){
|
169 | return MOSQ_ERR_NOMEM;
|
170 | }
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171 | mosq->id[0] = 'm';
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172 | mosq->id[1] = 'o';
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173 | mosq->id[2] = 's';
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174 | mosq->id[3] = 'q';
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175 | mosq->id[4] = '/';
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176 |
|
177 | for(i=5; i<23; i++){
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178 | mosq->id[i] = (rand()%73)+48;
|
179 | }
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180 | }
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181 | mosq->in_packet.payload = NULL;
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182 | _mosquitto_packet_cleanup(&mosq->in_packet);
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183 | mosq->out_packet = NULL;
|
184 | mosq->current_out_packet = NULL;
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185 | mosq->last_msg_in = mosquitto_time();
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186 | mosq->last_msg_out = mosquitto_time();
|
187 | mosq->ping_t = 0;
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188 | mosq->last_mid = 0;
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189 | mosq->state = mosq_cs_new;
|
190 | mosq->in_messages = NULL;
|
191 | mosq->in_messages_last = NULL;
|
192 | mosq->out_messages = NULL;
|
193 | mosq->out_messages_last = NULL;
|
194 | mosq->max_inflight_messages = 20;
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195 | mosq->will = NULL;
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196 | mosq->on_connect = NULL;
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197 | mosq->on_publish = NULL;
|
198 | mosq->on_message = NULL;
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199 | mosq->on_subscribe = NULL;
|
200 | mosq->on_unsubscribe = NULL;
|
201 | mosq->host = NULL;
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202 | mosq->port = 1883;
|
203 | mosq->in_callback = false;
|
204 | mosq->in_queue_len = 0;
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205 | mosq->out_queue_len = 0;
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206 | mosq->reconnect_delay = 1;
|
207 | mosq->reconnect_delay_max = 1;
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208 | mosq->reconnect_exponential_backoff = false;
|
209 | mosq->threaded = false;
|
210 | #ifdef WITH_TLS
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211 | mosq->ssl = NULL;
|
212 | mosq->tls_cert_reqs = SSL_VERIFY_PEER;
|
213 | mosq->tls_insecure = false;
|
214 | #endif
|
215 | #ifdef WITH_THREADING
|
216 | pthread_mutex_init(&mosq->callback_mutex, NULL);
|
217 | pthread_mutex_init(&mosq->log_callback_mutex, NULL);
|
218 | pthread_mutex_init(&mosq->state_mutex, NULL);
|
219 | pthread_mutex_init(&mosq->out_packet_mutex, NULL);
|
220 | pthread_mutex_init(&mosq->current_out_packet_mutex, NULL);
|
221 | pthread_mutex_init(&mosq->msgtime_mutex, NULL);
|
222 | pthread_mutex_init(&mosq->in_message_mutex, NULL);
|
223 | pthread_mutex_init(&mosq->out_message_mutex, NULL);
|
224 | mosq->thread_id = pthread_self();
|
225 | #endif
|
226 |
|
227 | return MOSQ_ERR_SUCCESS;
|
228 | }
|
229 |
|
230 | int mosquitto_will_set(struct mosquitto *mosq, const char *topic, int payloadlen, const void *payload, int qos, bool retain)
|
231 | {
|
232 | if(!mosq) return MOSQ_ERR_INVAL;
|
233 | return _mosquitto_will_set(mosq, topic, payloadlen, payload, qos, retain);
|
234 | }
|
235 |
|
236 | int mosquitto_will_clear(struct mosquitto *mosq)
|
237 | {
|
238 | if(!mosq) return MOSQ_ERR_INVAL;
|
239 | return _mosquitto_will_clear(mosq);
|
240 | }
|
241 |
|
242 | int mosquitto_username_pw_set(struct mosquitto *mosq, const char *username, const char *password)
|
243 | {
|
244 | if(!mosq) return MOSQ_ERR_INVAL;
|
245 |
|
246 | if(mosq->username){
|
247 | _mosquitto_free(mosq->username);
|
248 | mosq->username = NULL;
|
249 | }
|
250 | if(mosq->password){
|
251 | _mosquitto_free(mosq->password);
|
252 | mosq->password = NULL;
|
253 | }
|
254 |
|
255 | if(username){
|
256 | mosq->username = _mosquitto_strdup(username);
|
257 | if(!mosq->username) return MOSQ_ERR_NOMEM;
|
258 | if(password){
|
259 | mosq->password = _mosquitto_strdup(password);
|
260 | if(!mosq->password){
|
261 | _mosquitto_free(mosq->username);
|
262 | mosq->username = NULL;
|
263 | return MOSQ_ERR_NOMEM;
|
264 | }
|
265 | }
|
266 | }
|
267 | return MOSQ_ERR_SUCCESS;
|
268 | }
|
269 |
|
270 | int mosquitto_reconnect_delay_set(struct mosquitto *mosq, unsigned int reconnect_delay, unsigned int reconnect_delay_max, bool reconnect_exponential_backoff)
|
271 | {
|
272 | if(!mosq) return MOSQ_ERR_INVAL;
|
273 |
|
274 | mosq->reconnect_delay = reconnect_delay;
|
275 | mosq->reconnect_delay_max = reconnect_delay_max;
|
276 | mosq->reconnect_exponential_backoff = reconnect_exponential_backoff;
|
277 |
|
278 | return MOSQ_ERR_SUCCESS;
|
279 |
|
280 | }
|
281 |
|
282 | void _mosquitto_destroy(struct mosquitto *mosq)
|
283 | {
|
284 | struct _mosquitto_packet *packet;
|
285 | if(!mosq) return;
|
286 |
|
287 | #ifdef WITH_THREADING
|
288 | if(mosq->threaded && !pthread_equal(mosq->thread_id, pthread_self())){
|
289 | pthread_cancel(mosq->thread_id);
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290 | pthread_join(mosq->thread_id, NULL);
|
291 | mosq->threaded = false;
|
292 | }
|
293 |
|
294 | if(mosq->id){
|
295 | |
296 |
|
297 |
|
298 | pthread_mutex_destroy(&mosq->callback_mutex);
|
299 | pthread_mutex_destroy(&mosq->log_callback_mutex);
|
300 | pthread_mutex_destroy(&mosq->state_mutex);
|
301 | pthread_mutex_destroy(&mosq->out_packet_mutex);
|
302 | pthread_mutex_destroy(&mosq->current_out_packet_mutex);
|
303 | pthread_mutex_destroy(&mosq->msgtime_mutex);
|
304 | pthread_mutex_destroy(&mosq->in_message_mutex);
|
305 | pthread_mutex_destroy(&mosq->out_message_mutex);
|
306 | }
|
307 | #endif
|
308 | if(mosq->sock != INVALID_SOCKET){
|
309 | _mosquitto_socket_close(mosq);
|
310 | }
|
311 | _mosquitto_message_cleanup_all(mosq);
|
312 | _mosquitto_will_clear(mosq);
|
313 | #ifdef WITH_TLS
|
314 | if(mosq->ssl){
|
315 | SSL_free(mosq->ssl);
|
316 | }
|
317 | if(mosq->ssl_ctx){
|
318 | SSL_CTX_free(mosq->ssl_ctx);
|
319 | }
|
320 | if(mosq->tls_cafile) _mosquitto_free(mosq->tls_cafile);
|
321 | if(mosq->tls_capath) _mosquitto_free(mosq->tls_capath);
|
322 | if(mosq->tls_certfile) _mosquitto_free(mosq->tls_certfile);
|
323 | if(mosq->tls_keyfile) _mosquitto_free(mosq->tls_keyfile);
|
324 | if(mosq->tls_pw_callback) mosq->tls_pw_callback = NULL;
|
325 | if(mosq->tls_version) _mosquitto_free(mosq->tls_version);
|
326 | if(mosq->tls_ciphers) _mosquitto_free(mosq->tls_ciphers);
|
327 | if(mosq->tls_psk) _mosquitto_free(mosq->tls_psk);
|
328 | if(mosq->tls_psk_identity) _mosquitto_free(mosq->tls_psk_identity);
|
329 | #endif
|
330 |
|
331 | if(mosq->address){
|
332 | _mosquitto_free(mosq->address);
|
333 | mosq->address = NULL;
|
334 | }
|
335 | if(mosq->id){
|
336 | _mosquitto_free(mosq->id);
|
337 | mosq->id = NULL;
|
338 | }
|
339 | if(mosq->username){
|
340 | _mosquitto_free(mosq->username);
|
341 | mosq->username = NULL;
|
342 | }
|
343 | if(mosq->password){
|
344 | _mosquitto_free(mosq->password);
|
345 | mosq->password = NULL;
|
346 | }
|
347 | if(mosq->host){
|
348 | _mosquitto_free(mosq->host);
|
349 | mosq->host = NULL;
|
350 | }
|
351 | if(mosq->bind_address){
|
352 | _mosquitto_free(mosq->bind_address);
|
353 | mosq->bind_address = NULL;
|
354 | }
|
355 |
|
356 |
|
357 | if(mosq->out_packet && !mosq->current_out_packet){
|
358 | mosq->current_out_packet = mosq->out_packet;
|
359 | mosq->out_packet = mosq->out_packet->next;
|
360 | }
|
361 | while(mosq->current_out_packet){
|
362 | packet = mosq->current_out_packet;
|
363 |
|
364 | mosq->current_out_packet = mosq->out_packet;
|
365 | if(mosq->out_packet){
|
366 | mosq->out_packet = mosq->out_packet->next;
|
367 | }
|
368 |
|
369 | _mosquitto_packet_cleanup(packet);
|
370 | _mosquitto_free(packet);
|
371 | }
|
372 |
|
373 | _mosquitto_packet_cleanup(&mosq->in_packet);
|
374 | if(mosq->sockpairR != INVALID_SOCKET){
|
375 | COMPAT_CLOSE(mosq->sockpairR);
|
376 | mosq->sockpairR = INVALID_SOCKET;
|
377 | }
|
378 | if(mosq->sockpairW != INVALID_SOCKET){
|
379 | COMPAT_CLOSE(mosq->sockpairW);
|
380 | mosq->sockpairW = INVALID_SOCKET;
|
381 | }
|
382 | }
|
383 |
|
384 | void mosquitto_destroy(struct mosquitto *mosq)
|
385 | {
|
386 | if(!mosq) return;
|
387 |
|
388 | _mosquitto_destroy(mosq);
|
389 | _mosquitto_free(mosq);
|
390 | }
|
391 |
|
392 | int mosquitto_socket(struct mosquitto *mosq)
|
393 | {
|
394 | if(!mosq) return MOSQ_ERR_INVAL;
|
395 | return mosq->sock;
|
396 | }
|
397 |
|
398 | static int _mosquitto_connect_init(struct mosquitto *mosq, const char *host, int port, int keepalive, const char *bind_address)
|
399 | {
|
400 | if(!mosq) return MOSQ_ERR_INVAL;
|
401 | if(!host || port <= 0) return MOSQ_ERR_INVAL;
|
402 |
|
403 | if(mosq->host) _mosquitto_free(mosq->host);
|
404 | mosq->host = _mosquitto_strdup(host);
|
405 | if(!mosq->host) return MOSQ_ERR_NOMEM;
|
406 | mosq->port = port;
|
407 |
|
408 | if(mosq->bind_address) _mosquitto_free(mosq->bind_address);
|
409 | if(bind_address){
|
410 | mosq->bind_address = _mosquitto_strdup(bind_address);
|
411 | if(!mosq->bind_address) return MOSQ_ERR_NOMEM;
|
412 | }
|
413 |
|
414 | mosq->keepalive = keepalive;
|
415 |
|
416 | if(_mosquitto_socketpair(&mosq->sockpairR, &mosq->sockpairW)){
|
417 | _mosquitto_log_printf(mosq, MOSQ_LOG_WARNING,
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418 | "Warning: Unable to open socket pair, outgoing publish commands may be delayed.");
|
419 | }
|
420 |
|
421 | return MOSQ_ERR_SUCCESS;
|
422 | }
|
423 |
|
424 | int mosquitto_connect(struct mosquitto *mosq, const char *host, int port, int keepalive)
|
425 | {
|
426 | return mosquitto_connect_bind(mosq, host, port, keepalive, NULL);
|
427 | }
|
428 |
|
429 | int mosquitto_connect_bind(struct mosquitto *mosq, const char *host, int port, int keepalive, const char *bind_address)
|
430 | {
|
431 | int rc;
|
432 | rc = _mosquitto_connect_init(mosq, host, port, keepalive, bind_address);
|
433 | if(rc) return rc;
|
434 |
|
435 | pthread_mutex_lock(&mosq->state_mutex);
|
436 | mosq->state = mosq_cs_new;
|
437 | pthread_mutex_unlock(&mosq->state_mutex);
|
438 |
|
439 | return _mosquitto_reconnect(mosq, true);
|
440 | }
|
441 |
|
442 | int mosquitto_connect_async(struct mosquitto *mosq, const char *host, int port, int keepalive)
|
443 | {
|
444 | return mosquitto_connect_bind_async(mosq, host, port, keepalive, NULL);
|
445 | }
|
446 |
|
447 | int mosquitto_connect_bind_async(struct mosquitto *mosq, const char *host, int port, int keepalive, const char *bind_address)
|
448 | {
|
449 | int rc = _mosquitto_connect_init(mosq, host, port, keepalive, bind_address);
|
450 | if(rc) return rc;
|
451 |
|
452 | pthread_mutex_lock(&mosq->state_mutex);
|
453 | mosq->state = mosq_cs_connect_async;
|
454 | pthread_mutex_unlock(&mosq->state_mutex);
|
455 |
|
456 | return _mosquitto_reconnect(mosq, false);
|
457 | }
|
458 |
|
459 | int mosquitto_reconnect_async(struct mosquitto *mosq)
|
460 | {
|
461 | return _mosquitto_reconnect(mosq, false);
|
462 | }
|
463 |
|
464 | int mosquitto_reconnect(struct mosquitto *mosq)
|
465 | {
|
466 | return _mosquitto_reconnect(mosq, true);
|
467 | }
|
468 |
|
469 | static int _mosquitto_reconnect(struct mosquitto *mosq, bool blocking)
|
470 | {
|
471 | int rc;
|
472 | struct _mosquitto_packet *packet;
|
473 | if(!mosq) return MOSQ_ERR_INVAL;
|
474 | if(!mosq->host || mosq->port <= 0) return MOSQ_ERR_INVAL;
|
475 |
|
476 | pthread_mutex_lock(&mosq->state_mutex);
|
477 | mosq->state = mosq_cs_new;
|
478 | pthread_mutex_unlock(&mosq->state_mutex);
|
479 |
|
480 | pthread_mutex_lock(&mosq->msgtime_mutex);
|
481 | mosq->last_msg_in = mosquitto_time();
|
482 | mosq->last_msg_out = mosquitto_time();
|
483 | pthread_mutex_unlock(&mosq->msgtime_mutex);
|
484 |
|
485 | mosq->ping_t = 0;
|
486 |
|
487 | _mosquitto_packet_cleanup(&mosq->in_packet);
|
488 |
|
489 | pthread_mutex_lock(&mosq->current_out_packet_mutex);
|
490 | pthread_mutex_lock(&mosq->out_packet_mutex);
|
491 |
|
492 | if(mosq->out_packet && !mosq->current_out_packet){
|
493 | mosq->current_out_packet = mosq->out_packet;
|
494 | mosq->out_packet = mosq->out_packet->next;
|
495 | }
|
496 |
|
497 | while(mosq->current_out_packet){
|
498 | packet = mosq->current_out_packet;
|
499 |
|
500 | mosq->current_out_packet = mosq->out_packet;
|
501 | if(mosq->out_packet){
|
502 | mosq->out_packet = mosq->out_packet->next;
|
503 | }
|
504 |
|
505 | _mosquitto_packet_cleanup(packet);
|
506 | _mosquitto_free(packet);
|
507 | }
|
508 | pthread_mutex_unlock(&mosq->out_packet_mutex);
|
509 | pthread_mutex_unlock(&mosq->current_out_packet_mutex);
|
510 |
|
511 | _mosquitto_messages_reconnect_reset(mosq);
|
512 |
|
513 | rc = _mosquitto_socket_connect(mosq, mosq->host, mosq->port, mosq->bind_address, blocking);
|
514 | if(rc){
|
515 | return rc;
|
516 | }
|
517 |
|
518 | return _mosquitto_send_connect(mosq, mosq->keepalive, mosq->clean_session);
|
519 | }
|
520 |
|
521 | int mosquitto_disconnect(struct mosquitto *mosq)
|
522 | {
|
523 | if(!mosq) return MOSQ_ERR_INVAL;
|
524 |
|
525 | pthread_mutex_lock(&mosq->state_mutex);
|
526 | mosq->state = mosq_cs_disconnecting;
|
527 | pthread_mutex_unlock(&mosq->state_mutex);
|
528 |
|
529 | if(mosq->sock == INVALID_SOCKET) return MOSQ_ERR_NO_CONN;
|
530 | return _mosquitto_send_disconnect(mosq);
|
531 | }
|
532 |
|
533 | int mosquitto_publish(struct mosquitto *mosq, int *mid, const char *topic, int payloadlen, const void *payload, int qos, bool retain)
|
534 | {
|
535 | struct mosquitto_message_all *message;
|
536 | uint16_t local_mid;
|
537 |
|
538 | if(!mosq || !topic || qos<0 || qos>2) return MOSQ_ERR_INVAL;
|
539 | if(strlen(topic) == 0) return MOSQ_ERR_INVAL;
|
540 | if(payloadlen < 0 || payloadlen > MQTT_MAX_PAYLOAD) return MOSQ_ERR_PAYLOAD_SIZE;
|
541 |
|
542 | if(_mosquitto_topic_wildcard_len_check(topic) != MOSQ_ERR_SUCCESS){
|
543 | return MOSQ_ERR_INVAL;
|
544 | }
|
545 |
|
546 | local_mid = _mosquitto_mid_generate(mosq);
|
547 | if(mid){
|
548 | *mid = local_mid;
|
549 | }
|
550 |
|
551 | if(qos == 0){
|
552 | return _mosquitto_send_publish(mosq, local_mid, topic, payloadlen, payload, qos, retain, false);
|
553 | }else{
|
554 | message = _mosquitto_calloc(1, sizeof(struct mosquitto_message_all));
|
555 | if(!message) return MOSQ_ERR_NOMEM;
|
556 |
|
557 | message->next = NULL;
|
558 | message->timestamp = mosquitto_time();
|
559 | message->msg.mid = local_mid;
|
560 | message->msg.topic = _mosquitto_strdup(topic);
|
561 | if(!message->msg.topic){
|
562 | _mosquitto_message_cleanup(&message);
|
563 | return MOSQ_ERR_NOMEM;
|
564 | }
|
565 | if(payloadlen){
|
566 | message->msg.payloadlen = payloadlen;
|
567 | message->msg.payload = _mosquitto_malloc(payloadlen*sizeof(uint8_t));
|
568 | if(!message->msg.payload){
|
569 | _mosquitto_message_cleanup(&message);
|
570 | return MOSQ_ERR_NOMEM;
|
571 | }
|
572 | memcpy(message->msg.payload, payload, payloadlen*sizeof(uint8_t));
|
573 | }else{
|
574 | message->msg.payloadlen = 0;
|
575 | message->msg.payload = NULL;
|
576 | }
|
577 | message->msg.qos = qos;
|
578 | message->msg.retain = retain;
|
579 | message->dup = false;
|
580 |
|
581 | pthread_mutex_lock(&mosq->out_message_mutex);
|
582 | _mosquitto_message_queue(mosq, message, mosq_md_out);
|
583 | if(mosq->max_inflight_messages == 0 || mosq->inflight_messages < mosq->max_inflight_messages){
|
584 | mosq->inflight_messages++;
|
585 | if(qos == 1){
|
586 | message->state = mosq_ms_wait_for_puback;
|
587 | }else if(qos == 2){
|
588 | message->state = mosq_ms_wait_for_pubrec;
|
589 | }
|
590 | pthread_mutex_unlock(&mosq->out_message_mutex);
|
591 | return _mosquitto_send_publish(mosq, message->msg.mid, message->msg.topic, message->msg.payloadlen, message->msg.payload, message->msg.qos, message->msg.retain, message->dup);
|
592 | }else{
|
593 | message->state = mosq_ms_invalid;
|
594 | pthread_mutex_unlock(&mosq->out_message_mutex);
|
595 | return MOSQ_ERR_SUCCESS;
|
596 | }
|
597 | }
|
598 | }
|
599 |
|
600 | int mosquitto_subscribe(struct mosquitto *mosq, int *mid, const char *sub, int qos)
|
601 | {
|
602 | if(!mosq) return MOSQ_ERR_INVAL;
|
603 | if(mosq->sock == INVALID_SOCKET) return MOSQ_ERR_NO_CONN;
|
604 |
|
605 | if(_mosquitto_topic_wildcard_pos_check(sub)) return MOSQ_ERR_INVAL;
|
606 |
|
607 | return _mosquitto_send_subscribe(mosq, mid, false, sub, qos);
|
608 | }
|
609 |
|
610 | int mosquitto_unsubscribe(struct mosquitto *mosq, int *mid, const char *sub)
|
611 | {
|
612 | if(!mosq) return MOSQ_ERR_INVAL;
|
613 | if(mosq->sock == INVALID_SOCKET) return MOSQ_ERR_NO_CONN;
|
614 |
|
615 | if(_mosquitto_topic_wildcard_pos_check(sub)) return MOSQ_ERR_INVAL;
|
616 |
|
617 | return _mosquitto_send_unsubscribe(mosq, mid, false, sub);
|
618 | }
|
619 |
|
620 | int mosquitto_tls_set(struct mosquitto *mosq, const char *cafile, const char *capath, const char *certfile, const char *keyfile, int (*pw_callback)(char *buf, int size, int rwflag, void *userdata))
|
621 | {
|
622 | #ifdef WITH_TLS
|
623 | FILE *fptr;
|
624 |
|
625 | if(!mosq || (!cafile && !capath) || (certfile && !keyfile) || (!certfile && keyfile)) return MOSQ_ERR_INVAL;
|
626 |
|
627 | if(cafile){
|
628 | fptr = _mosquitto_fopen(cafile, "rt");
|
629 | if(fptr){
|
630 | fclose(fptr);
|
631 | }else{
|
632 | return MOSQ_ERR_INVAL;
|
633 | }
|
634 | mosq->tls_cafile = _mosquitto_strdup(cafile);
|
635 |
|
636 | if(!mosq->tls_cafile){
|
637 | return MOSQ_ERR_NOMEM;
|
638 | }
|
639 | }else if(mosq->tls_cafile){
|
640 | _mosquitto_free(mosq->tls_cafile);
|
641 | mosq->tls_cafile = NULL;
|
642 | }
|
643 |
|
644 | if(capath){
|
645 | mosq->tls_capath = _mosquitto_strdup(capath);
|
646 | if(!mosq->tls_capath){
|
647 | return MOSQ_ERR_NOMEM;
|
648 | }
|
649 | }else if(mosq->tls_capath){
|
650 | _mosquitto_free(mosq->tls_capath);
|
651 | mosq->tls_capath = NULL;
|
652 | }
|
653 |
|
654 | if(certfile){
|
655 | fptr = _mosquitto_fopen(certfile, "rt");
|
656 | if(fptr){
|
657 | fclose(fptr);
|
658 | }else{
|
659 | if(mosq->tls_cafile){
|
660 | _mosquitto_free(mosq->tls_cafile);
|
661 | mosq->tls_cafile = NULL;
|
662 | }
|
663 | if(mosq->tls_capath){
|
664 | _mosquitto_free(mosq->tls_capath);
|
665 | mosq->tls_capath = NULL;
|
666 | }
|
667 | return MOSQ_ERR_INVAL;
|
668 | }
|
669 | mosq->tls_certfile = _mosquitto_strdup(certfile);
|
670 | if(!mosq->tls_certfile){
|
671 | return MOSQ_ERR_NOMEM;
|
672 | }
|
673 | }else{
|
674 | if(mosq->tls_certfile) _mosquitto_free(mosq->tls_certfile);
|
675 | mosq->tls_certfile = NULL;
|
676 | }
|
677 |
|
678 | if(keyfile){
|
679 | fptr = _mosquitto_fopen(keyfile, "rt");
|
680 | if(fptr){
|
681 | fclose(fptr);
|
682 | }else{
|
683 | if(mosq->tls_cafile){
|
684 | _mosquitto_free(mosq->tls_cafile);
|
685 | mosq->tls_cafile = NULL;
|
686 | }
|
687 | if(mosq->tls_capath){
|
688 | _mosquitto_free(mosq->tls_capath);
|
689 | mosq->tls_capath = NULL;
|
690 | }
|
691 | if(mosq->tls_certfile){
|
692 | _mosquitto_free(mosq->tls_certfile);
|
693 | mosq->tls_certfile = NULL;
|
694 | }
|
695 | return MOSQ_ERR_INVAL;
|
696 | }
|
697 | mosq->tls_keyfile = _mosquitto_strdup(keyfile);
|
698 | if(!mosq->tls_keyfile){
|
699 | return MOSQ_ERR_NOMEM;
|
700 | }
|
701 | }else{
|
702 | if(mosq->tls_keyfile) _mosquitto_free(mosq->tls_keyfile);
|
703 | mosq->tls_keyfile = NULL;
|
704 | }
|
705 |
|
706 | mosq->tls_pw_callback = pw_callback;
|
707 |
|
708 |
|
709 | return MOSQ_ERR_SUCCESS;
|
710 | #else
|
711 | return MOSQ_ERR_NOT_SUPPORTED;
|
712 |
|
713 | #endif
|
714 | }
|
715 |
|
716 | int mosquitto_tls_opts_set(struct mosquitto *mosq, int cert_reqs, const char *tls_version, const char *ciphers)
|
717 | {
|
718 | #ifdef WITH_TLS
|
719 | if(!mosq) return MOSQ_ERR_INVAL;
|
720 |
|
721 | mosq->tls_cert_reqs = cert_reqs;
|
722 | if(tls_version){
|
723 | #if OPENSSL_VERSION_NUMBER >= 0x10001000L
|
724 | if(!strcasecmp(tls_version, "tlsv1.2")
|
725 | || !strcasecmp(tls_version, "tlsv1.1")
|
726 | || !strcasecmp(tls_version, "tlsv1")){
|
727 |
|
728 | mosq->tls_version = _mosquitto_strdup(tls_version);
|
729 | if(!mosq->tls_version) return MOSQ_ERR_NOMEM;
|
730 | }else{
|
731 | return MOSQ_ERR_INVAL;
|
732 | }
|
733 | #else
|
734 | if(!strcasecmp(tls_version, "tlsv1")){
|
735 | mosq->tls_version = _mosquitto_strdup(tls_version);
|
736 | if(!mosq->tls_version) return MOSQ_ERR_NOMEM;
|
737 | }else{
|
738 | return MOSQ_ERR_INVAL;
|
739 | }
|
740 | #endif
|
741 | }else{
|
742 | #if OPENSSL_VERSION_NUMBER >= 0x10001000L
|
743 | mosq->tls_version = _mosquitto_strdup("tlsv1.2");
|
744 | #else
|
745 | mosq->tls_version = _mosquitto_strdup("tlsv1");
|
746 | #endif
|
747 | if(!mosq->tls_version) return MOSQ_ERR_NOMEM;
|
748 | }
|
749 | if(ciphers){
|
750 | mosq->tls_ciphers = _mosquitto_strdup(ciphers);
|
751 | if(!mosq->tls_ciphers) return MOSQ_ERR_NOMEM;
|
752 | }else{
|
753 | mosq->tls_ciphers = NULL;
|
754 | }
|
755 |
|
756 |
|
757 | return MOSQ_ERR_SUCCESS;
|
758 | #else
|
759 | return MOSQ_ERR_NOT_SUPPORTED;
|
760 |
|
761 | #endif
|
762 | }
|
763 |
|
764 |
|
765 | int mosquitto_tls_insecure_set(struct mosquitto *mosq, bool value)
|
766 | {
|
767 | #ifdef WITH_TLS
|
768 | if(!mosq) return MOSQ_ERR_INVAL;
|
769 | mosq->tls_insecure = value;
|
770 | return MOSQ_ERR_SUCCESS;
|
771 | #else
|
772 | return MOSQ_ERR_NOT_SUPPORTED;
|
773 | #endif
|
774 | }
|
775 |
|
776 |
|
777 | int mosquitto_tls_psk_set(struct mosquitto *mosq, const char *psk, const char *identity, const char *ciphers)
|
778 | {
|
779 | #ifdef REAL_WITH_TLS_PSK
|
780 | if(!mosq || !psk || !identity) return MOSQ_ERR_INVAL;
|
781 |
|
782 |
|
783 | if(strspn(psk, "0123456789abcdefABCDEF") < strlen(psk)){
|
784 | return MOSQ_ERR_INVAL;
|
785 | }
|
786 | mosq->tls_psk = _mosquitto_strdup(psk);
|
787 | if(!mosq->tls_psk) return MOSQ_ERR_NOMEM;
|
788 |
|
789 | mosq->tls_psk_identity = _mosquitto_strdup(identity);
|
790 | if(!mosq->tls_psk_identity){
|
791 | _mosquitto_free(mosq->tls_psk);
|
792 | return MOSQ_ERR_NOMEM;
|
793 | }
|
794 | if(ciphers){
|
795 | mosq->tls_ciphers = _mosquitto_strdup(ciphers);
|
796 | if(!mosq->tls_ciphers) return MOSQ_ERR_NOMEM;
|
797 | }else{
|
798 | mosq->tls_ciphers = NULL;
|
799 | }
|
800 |
|
801 | return MOSQ_ERR_SUCCESS;
|
802 | #else
|
803 | return MOSQ_ERR_NOT_SUPPORTED;
|
804 | #endif
|
805 | }
|
806 |
|
807 |
|
808 | int mosquitto_loop(struct mosquitto *mosq, int timeout, int max_packets)
|
809 | {
|
810 | #ifdef HAVE_PSELECT
|
811 | struct timespec local_timeout;
|
812 | #else
|
813 | struct timeval local_timeout;
|
814 | #endif
|
815 | fd_set readfds, writefds;
|
816 | int fdcount;
|
817 | int rc;
|
818 | char pairbuf;
|
819 | int maxfd = 0;
|
820 |
|
821 | if(!mosq || max_packets < 1) return MOSQ_ERR_INVAL;
|
822 |
|
823 | FD_ZERO(&readfds);
|
824 | FD_ZERO(&writefds);
|
825 | if(mosq->sock != INVALID_SOCKET){
|
826 | maxfd = mosq->sock;
|
827 | FD_SET(mosq->sock, &readfds);
|
828 | pthread_mutex_lock(&mosq->current_out_packet_mutex);
|
829 | pthread_mutex_lock(&mosq->out_packet_mutex);
|
830 | if(mosq->out_packet || mosq->current_out_packet){
|
831 | FD_SET(mosq->sock, &writefds);
|
832 | #ifdef WITH_TLS
|
833 | }else if(mosq->ssl && mosq->want_write){
|
834 | FD_SET(mosq->sock, &writefds);
|
835 | #endif
|
836 | }
|
837 | pthread_mutex_unlock(&mosq->out_packet_mutex);
|
838 | pthread_mutex_unlock(&mosq->current_out_packet_mutex);
|
839 | }else{
|
840 | #ifdef WITH_SRV
|
841 | if(mosq->achan){
|
842 | pthread_mutex_lock(&mosq->state_mutex);
|
843 | if(mosq->state == mosq_cs_connect_srv){
|
844 | rc = ares_fds(mosq->achan, &readfds, &writefds);
|
845 | if(rc > maxfd){
|
846 | maxfd = rc;
|
847 | }
|
848 | }else{
|
849 | return MOSQ_ERR_NO_CONN;
|
850 | }
|
851 | pthread_mutex_unlock(&mosq->state_mutex);
|
852 | }
|
853 | #else
|
854 | return MOSQ_ERR_NO_CONN;
|
855 | #endif
|
856 | }
|
857 | if(mosq->sockpairR != INVALID_SOCKET){
|
858 | |
859 |
|
860 | FD_SET(mosq->sockpairR, &readfds);
|
861 | if(mosq->sockpairR > maxfd){
|
862 | maxfd = mosq->sockpairR;
|
863 | }
|
864 | }
|
865 |
|
866 | if(timeout >= 0){
|
867 | local_timeout.tv_sec = timeout/1000;
|
868 | #ifdef HAVE_PSELECT
|
869 | local_timeout.tv_nsec = (timeout-local_timeout.tv_sec*1000)*1e6;
|
870 | #else
|
871 | local_timeout.tv_usec = (timeout-local_timeout.tv_sec*1000)*1000;
|
872 | #endif
|
873 | }else{
|
874 | local_timeout.tv_sec = 1;
|
875 | #ifdef HAVE_PSELECT
|
876 | local_timeout.tv_nsec = 0;
|
877 | #else
|
878 | local_timeout.tv_usec = 0;
|
879 | #endif
|
880 | }
|
881 |
|
882 | #ifdef HAVE_PSELECT
|
883 | fdcount = pselect(maxfd+1, &readfds, &writefds, NULL, &local_timeout, NULL);
|
884 | #else
|
885 | fdcount = select(maxfd+1, &readfds, &writefds, NULL, &local_timeout);
|
886 | #endif
|
887 | if(fdcount == -1){
|
888 | #ifdef WIN32
|
889 | errno = WSAGetLastError();
|
890 | #endif
|
891 | if(errno == EINTR){
|
892 | return MOSQ_ERR_SUCCESS;
|
893 | }else{
|
894 | return MOSQ_ERR_ERRNO;
|
895 | }
|
896 | }else{
|
897 | if(mosq->sock != INVALID_SOCKET){
|
898 | if(FD_ISSET(mosq->sock, &readfds)){
|
899 | rc = mosquitto_loop_read(mosq, max_packets);
|
900 | if(rc || mosq->sock == INVALID_SOCKET){
|
901 | return rc;
|
902 | }
|
903 | }
|
904 | if(mosq->sockpairR >= 0 && FD_ISSET(mosq->sockpairR, &readfds)){
|
905 | #ifndef WIN32
|
906 | if(read(mosq->sockpairR, &pairbuf, 1) == 0){
|
907 | }
|
908 | #else
|
909 | recv(mosq->sockpairR, &pairbuf, 1, 0);
|
910 | #endif
|
911 | |
912 |
|
913 |
|
914 | FD_SET(mosq->sock, &writefds);
|
915 | }
|
916 | if(FD_ISSET(mosq->sock, &writefds)){
|
917 | rc = mosquitto_loop_write(mosq, max_packets);
|
918 | if(rc || mosq->sock == INVALID_SOCKET){
|
919 | return rc;
|
920 | }
|
921 | }
|
922 | }
|
923 | #ifdef WITH_SRV
|
924 | if(mosq->achan){
|
925 | ares_process(mosq->achan, &readfds, &writefds);
|
926 | }
|
927 | #endif
|
928 | }
|
929 | return mosquitto_loop_misc(mosq);
|
930 | }
|
931 |
|
932 | int mosquitto_loop_forever(struct mosquitto *mosq, int timeout, int max_packets)
|
933 | {
|
934 | int run = 1;
|
935 | int rc;
|
936 | unsigned int reconnects = 0;
|
937 | unsigned long reconnect_delay;
|
938 |
|
939 | if(!mosq) return MOSQ_ERR_INVAL;
|
940 |
|
941 | if(mosq->state == mosq_cs_connect_async){
|
942 | mosquitto_reconnect(mosq);
|
943 | }
|
944 |
|
945 | while(run){
|
946 | do{
|
947 | rc = mosquitto_loop(mosq, timeout, max_packets);
|
948 | if (reconnects !=0 && rc == MOSQ_ERR_SUCCESS){
|
949 | reconnects = 0;
|
950 | }
|
951 | }while(rc == MOSQ_ERR_SUCCESS);
|
952 | if(errno == EPROTO){
|
953 | return rc;
|
954 | }
|
955 | pthread_mutex_lock(&mosq->state_mutex);
|
956 | if(mosq->state == mosq_cs_disconnecting){
|
957 | run = 0;
|
958 | pthread_mutex_unlock(&mosq->state_mutex);
|
959 | }else{
|
960 | pthread_mutex_unlock(&mosq->state_mutex);
|
961 |
|
962 | if(mosq->reconnect_delay > 0 && mosq->reconnect_exponential_backoff){
|
963 | reconnect_delay = mosq->reconnect_delay*reconnects*reconnects;
|
964 | }else{
|
965 | reconnect_delay = mosq->reconnect_delay;
|
966 | }
|
967 |
|
968 | if(reconnect_delay > mosq->reconnect_delay_max){
|
969 | reconnect_delay = mosq->reconnect_delay_max;
|
970 | }else{
|
971 | reconnects++;
|
972 | }
|
973 |
|
974 | #ifdef WIN32
|
975 | Sleep(reconnect_delay*1000);
|
976 | #else
|
977 | sleep(reconnect_delay);
|
978 | #endif
|
979 |
|
980 | pthread_mutex_lock(&mosq->state_mutex);
|
981 | if(mosq->state == mosq_cs_disconnecting){
|
982 | run = 0;
|
983 | pthread_mutex_unlock(&mosq->state_mutex);
|
984 | }else{
|
985 | pthread_mutex_unlock(&mosq->state_mutex);
|
986 | mosquitto_reconnect(mosq);
|
987 | }
|
988 | }
|
989 | }
|
990 | return rc;
|
991 | }
|
992 |
|
993 | int mosquitto_loop_misc(struct mosquitto *mosq)
|
994 | {
|
995 | time_t now;
|
996 | int rc;
|
997 |
|
998 | if(!mosq) return MOSQ_ERR_INVAL;
|
999 | if(mosq->sock == INVALID_SOCKET) return MOSQ_ERR_NO_CONN;
|
1000 |
|
1001 | now = mosquitto_time();
|
1002 |
|
1003 | _mosquitto_check_keepalive(mosq);
|
1004 | if(mosq->last_retry_check+1 < now){
|
1005 | _mosquitto_message_retry_check(mosq);
|
1006 | mosq->last_retry_check = now;
|
1007 | }
|
1008 | if(mosq->ping_t && now - mosq->ping_t >= mosq->keepalive){
|
1009 | |
1010 |
|
1011 |
|
1012 | _mosquitto_socket_close(mosq);
|
1013 | pthread_mutex_lock(&mosq->state_mutex);
|
1014 | if(mosq->state == mosq_cs_disconnecting){
|
1015 | rc = MOSQ_ERR_SUCCESS;
|
1016 | }else{
|
1017 | rc = 1;
|
1018 | }
|
1019 | pthread_mutex_unlock(&mosq->state_mutex);
|
1020 | pthread_mutex_lock(&mosq->callback_mutex);
|
1021 | if(mosq->on_disconnect){
|
1022 | mosq->in_callback = true;
|
1023 | mosq->on_disconnect(mosq, mosq->userdata, rc);
|
1024 | mosq->in_callback = false;
|
1025 | }
|
1026 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1027 | return MOSQ_ERR_CONN_LOST;
|
1028 | }
|
1029 | return MOSQ_ERR_SUCCESS;
|
1030 | }
|
1031 |
|
1032 | static int _mosquitto_loop_rc_handle(struct mosquitto *mosq, int rc)
|
1033 | {
|
1034 | if(rc){
|
1035 | _mosquitto_socket_close(mosq);
|
1036 | pthread_mutex_lock(&mosq->state_mutex);
|
1037 | if(mosq->state == mosq_cs_disconnecting){
|
1038 | rc = MOSQ_ERR_SUCCESS;
|
1039 | }
|
1040 | pthread_mutex_unlock(&mosq->state_mutex);
|
1041 | pthread_mutex_lock(&mosq->callback_mutex);
|
1042 | if(mosq->on_disconnect){
|
1043 | mosq->in_callback = true;
|
1044 | mosq->on_disconnect(mosq, mosq->userdata, rc);
|
1045 | mosq->in_callback = false;
|
1046 | }
|
1047 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1048 | return rc;
|
1049 | }
|
1050 | return rc;
|
1051 | }
|
1052 |
|
1053 | int mosquitto_loop_read(struct mosquitto *mosq, int max_packets)
|
1054 | {
|
1055 | int rc;
|
1056 | int i;
|
1057 | if(max_packets < 1) return MOSQ_ERR_INVAL;
|
1058 |
|
1059 | pthread_mutex_lock(&mosq->out_message_mutex);
|
1060 | max_packets = mosq->out_queue_len;
|
1061 | pthread_mutex_unlock(&mosq->out_message_mutex);
|
1062 |
|
1063 | pthread_mutex_lock(&mosq->in_message_mutex);
|
1064 | max_packets += mosq->in_queue_len;
|
1065 | pthread_mutex_unlock(&mosq->in_message_mutex);
|
1066 |
|
1067 | if(max_packets < 1) max_packets = 1;
|
1068 | |
1069 |
|
1070 |
|
1071 | for(i=0; i<max_packets; i++){
|
1072 | rc = _mosquitto_packet_read(mosq);
|
1073 | if(rc || errno == EAGAIN || errno == COMPAT_EWOULDBLOCK){
|
1074 | return _mosquitto_loop_rc_handle(mosq, rc);
|
1075 | }
|
1076 | }
|
1077 | return rc;
|
1078 | }
|
1079 |
|
1080 | int mosquitto_loop_write(struct mosquitto *mosq, int max_packets)
|
1081 | {
|
1082 | int rc;
|
1083 | int i;
|
1084 | if(max_packets < 1) return MOSQ_ERR_INVAL;
|
1085 |
|
1086 | pthread_mutex_lock(&mosq->out_message_mutex);
|
1087 | max_packets = mosq->out_queue_len;
|
1088 | pthread_mutex_unlock(&mosq->out_message_mutex);
|
1089 |
|
1090 | pthread_mutex_lock(&mosq->in_message_mutex);
|
1091 | max_packets += mosq->in_queue_len;
|
1092 | pthread_mutex_unlock(&mosq->in_message_mutex);
|
1093 |
|
1094 | if(max_packets < 1) max_packets = 1;
|
1095 | |
1096 |
|
1097 |
|
1098 | for(i=0; i<max_packets; i++){
|
1099 | rc = _mosquitto_packet_write(mosq);
|
1100 | if(rc || errno == EAGAIN || errno == COMPAT_EWOULDBLOCK){
|
1101 | return _mosquitto_loop_rc_handle(mosq, rc);
|
1102 | }
|
1103 | }
|
1104 | return rc;
|
1105 | }
|
1106 |
|
1107 | bool mosquitto_want_write(struct mosquitto *mosq)
|
1108 | {
|
1109 | if(mosq->out_packet || mosq->current_out_packet){
|
1110 | return true;
|
1111 | #ifdef WITH_TLS
|
1112 | }else if(mosq->ssl && mosq->want_write){
|
1113 | return true;
|
1114 | #endif
|
1115 | }else{
|
1116 | return false;
|
1117 | }
|
1118 | }
|
1119 |
|
1120 | void mosquitto_connect_callback_set(struct mosquitto *mosq, void (*on_connect)(struct mosquitto *, void *, int))
|
1121 | {
|
1122 | pthread_mutex_lock(&mosq->callback_mutex);
|
1123 | mosq->on_connect = on_connect;
|
1124 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1125 | }
|
1126 |
|
1127 | void mosquitto_disconnect_callback_set(struct mosquitto *mosq, void (*on_disconnect)(struct mosquitto *, void *, int))
|
1128 | {
|
1129 | pthread_mutex_lock(&mosq->callback_mutex);
|
1130 | mosq->on_disconnect = on_disconnect;
|
1131 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1132 | }
|
1133 |
|
1134 | void mosquitto_publish_callback_set(struct mosquitto *mosq, void (*on_publish)(struct mosquitto *, void *, int))
|
1135 | {
|
1136 | pthread_mutex_lock(&mosq->callback_mutex);
|
1137 | mosq->on_publish = on_publish;
|
1138 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1139 | }
|
1140 |
|
1141 | void mosquitto_message_callback_set(struct mosquitto *mosq, void (*on_message)(struct mosquitto *, void *, const struct mosquitto_message *))
|
1142 | {
|
1143 | pthread_mutex_lock(&mosq->callback_mutex);
|
1144 | mosq->on_message = on_message;
|
1145 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1146 | }
|
1147 |
|
1148 | void mosquitto_subscribe_callback_set(struct mosquitto *mosq, void (*on_subscribe)(struct mosquitto *, void *, int, int, const int *))
|
1149 | {
|
1150 | pthread_mutex_lock(&mosq->callback_mutex);
|
1151 | mosq->on_subscribe = on_subscribe;
|
1152 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1153 | }
|
1154 |
|
1155 | void mosquitto_unsubscribe_callback_set(struct mosquitto *mosq, void (*on_unsubscribe)(struct mosquitto *, void *, int))
|
1156 | {
|
1157 | pthread_mutex_lock(&mosq->callback_mutex);
|
1158 | mosq->on_unsubscribe = on_unsubscribe;
|
1159 | pthread_mutex_unlock(&mosq->callback_mutex);
|
1160 | }
|
1161 |
|
1162 | void mosquitto_log_callback_set(struct mosquitto *mosq, void (*on_log)(struct mosquitto *, void *, int, const char *))
|
1163 | {
|
1164 | pthread_mutex_lock(&mosq->log_callback_mutex);
|
1165 | mosq->on_log = on_log;
|
1166 | pthread_mutex_unlock(&mosq->log_callback_mutex);
|
1167 | }
|
1168 |
|
1169 | void mosquitto_user_data_set(struct mosquitto *mosq, void *userdata)
|
1170 | {
|
1171 | if(mosq){
|
1172 | mosq->userdata = userdata;
|
1173 | }
|
1174 | }
|
1175 |
|
1176 | const char *mosquitto_strerror(int mosq_errno)
|
1177 | {
|
1178 | switch(mosq_errno){
|
1179 | case MOSQ_ERR_SUCCESS:
|
1180 | return "No error.";
|
1181 | case MOSQ_ERR_NOMEM:
|
1182 | return "Out of memory.";
|
1183 | case MOSQ_ERR_PROTOCOL:
|
1184 | return "A network protocol error occurred when communicating with the broker.";
|
1185 | case MOSQ_ERR_INVAL:
|
1186 | return "Invalid function arguments provided.";
|
1187 | case MOSQ_ERR_NO_CONN:
|
1188 | return "The client is not currently connected.";
|
1189 | case MOSQ_ERR_CONN_REFUSED:
|
1190 | return "The connection was refused.";
|
1191 | case MOSQ_ERR_NOT_FOUND:
|
1192 | return "Message not found (internal error).";
|
1193 | case MOSQ_ERR_CONN_LOST:
|
1194 | return "The connection was lost.";
|
1195 | case MOSQ_ERR_TLS:
|
1196 | return "A TLS error occurred.";
|
1197 | case MOSQ_ERR_PAYLOAD_SIZE:
|
1198 | return "Payload too large.";
|
1199 | case MOSQ_ERR_NOT_SUPPORTED:
|
1200 | return "This feature is not supported.";
|
1201 | case MOSQ_ERR_AUTH:
|
1202 | return "Authorisation failed.";
|
1203 | case MOSQ_ERR_ACL_DENIED:
|
1204 | return "Access denied by ACL.";
|
1205 | case MOSQ_ERR_UNKNOWN:
|
1206 | return "Unknown error.";
|
1207 | case MOSQ_ERR_ERRNO:
|
1208 | return strerror(errno);
|
1209 | default:
|
1210 | return "Unknown error.";
|
1211 | }
|
1212 | }
|
1213 |
|
1214 | const char *mosquitto_connack_string(int connack_code)
|
1215 | {
|
1216 | switch(connack_code){
|
1217 | case 0:
|
1218 | return "Connection Accepted.";
|
1219 | case 1:
|
1220 | return "Connection Refused: unacceptable protocol version.";
|
1221 | case 2:
|
1222 | return "Connection Refused: identifier rejected.";
|
1223 | case 3:
|
1224 | return "Connection Refused: broker unavailable.";
|
1225 | case 4:
|
1226 | return "Connection Refused: bad user name or password.";
|
1227 | case 5:
|
1228 | return "Connection Refused: not authorised.";
|
1229 | default:
|
1230 | return "Connection Refused: unknown reason.";
|
1231 | }
|
1232 | }
|
1233 |
|
1234 | int mosquitto_sub_topic_tokenise(const char *subtopic, char ***topics, int *count)
|
1235 | {
|
1236 | int len;
|
1237 | int hier_count = 1;
|
1238 | int start, stop;
|
1239 | int hier;
|
1240 | int tlen;
|
1241 | int i, j;
|
1242 |
|
1243 | if(!subtopic || !topics || !count) return MOSQ_ERR_INVAL;
|
1244 |
|
1245 | len = strlen(subtopic);
|
1246 |
|
1247 | for(i=0; i<len; i++){
|
1248 | if(subtopic[i] == '/'){
|
1249 | if(i > len-1){
|
1250 |
|
1251 | }else{
|
1252 | hier_count++;
|
1253 | }
|
1254 | }
|
1255 | }
|
1256 |
|
1257 | (*topics) = _mosquitto_calloc(hier_count, sizeof(char *));
|
1258 | if(!(*topics)) return MOSQ_ERR_NOMEM;
|
1259 |
|
1260 | start = 0;
|
1261 | stop = 0;
|
1262 | hier = 0;
|
1263 |
|
1264 | for(i=0; i<len+1; i++){
|
1265 | if(subtopic[i] == '/' || subtopic[i] == '\0'){
|
1266 | stop = i;
|
1267 | if(start != stop){
|
1268 | tlen = stop-start + 1;
|
1269 | (*topics)[hier] = _mosquitto_calloc(tlen, sizeof(char));
|
1270 | if(!(*topics)[hier]){
|
1271 | for(i=0; i<hier_count; i++){
|
1272 | if((*topics)[hier]){
|
1273 | _mosquitto_free((*topics)[hier]);
|
1274 | }
|
1275 | }
|
1276 | _mosquitto_free((*topics));
|
1277 | return MOSQ_ERR_NOMEM;
|
1278 | }
|
1279 | for(j=start; j<stop; j++){
|
1280 | (*topics)[hier][j-start] = subtopic[j];
|
1281 | }
|
1282 | }
|
1283 | start = i+1;
|
1284 | hier++;
|
1285 | }
|
1286 | }
|
1287 |
|
1288 | *count = hier_count;
|
1289 |
|
1290 | return MOSQ_ERR_SUCCESS;
|
1291 | }
|
1292 |
|
1293 | int mosquitto_sub_topic_tokens_free(char ***topics, int count)
|
1294 | {
|
1295 | int i;
|
1296 |
|
1297 | if(!topics || !(*topics) || count<1) return MOSQ_ERR_INVAL;
|
1298 |
|
1299 | for(i=0; i<count; i++){
|
1300 | if((*topics)[i]) _mosquitto_free((*topics)[i]);
|
1301 | }
|
1302 | _mosquitto_free(*topics);
|
1303 |
|
1304 | return MOSQ_ERR_SUCCESS;
|
1305 | }
|
1306 |
|