Annotation of mqtt/src/daemon.c, revision 1.1.2.21
1.1.2.1 misho 1: #include "global.h"
1.1.2.16 misho 2: #include "rtlm.h"
1.1.2.11 misho 3: #include "mqttd.h"
1.1.2.1 misho 4:
5:
1.1.2.14 misho 6: static inline struct tagSession *
1.1.2.18 misho 7: initSession(int sock, ait_val_t * __restrict v)
1.1.2.14 misho 8: {
9: struct tagSession *sess = NULL;
10: const char *str;
11:
1.1.2.20 misho 12: ioTRACE(5);
1.1.2.15 misho 13:
1.1.2.18 misho 14: if (!v)
1.1.2.14 misho 15: return NULL;
16:
17: sess = malloc(sizeof(struct tagSession));
18: if (!sess) {
1.1.2.20 misho 19: ioDEBUG(3, "Error:: in malloc #%d - %s", errno, strerror(errno));
1.1.2.18 misho 20: io_freeVar(v);
1.1.2.14 misho 21: return NULL;
22: } else
23: memset(sess, 0, sizeof(struct tagSession));
24:
1.1.2.17 misho 25: str = (const char*) cfg_GetAttribute(&cfg, CFG("mqttd"), CFG("retry"));
1.1.2.14 misho 26: if (!str)
27: sess->sess_retry = DEFAULT_RETRY;
28: else
29: sess->sess_retry = strtol(str, NULL, 0);
30:
31: sess->sess_buf = mqtt_msgAlloc(0);
32: if (!sess->sess_buf) {
1.1.2.20 misho 33: ioDEBUG(3, "Error:: in msgAlloc #%d - %s", mqtt_GetErrno(), mqtt_GetError());
1.1.2.14 misho 34: free(sess);
1.1.2.18 misho 35: io_freeVar(v);
1.1.2.14 misho 36: return NULL;
37: }
38:
1.1.2.15 misho 39: sess->sess_sock = sock;
1.1.2.19 misho 40: strlcpy(sess->sess_addr, (char*) AIT_GET_STR(v), sizeof sess->sess_addr);
1.1.2.18 misho 41: io_freeVar(v);
1.1.2.14 misho 42: return sess;
43: }
44:
45: static void
46: finiSession(struct tagSession *sess)
47: {
48: register int i;
49: struct tagStore *store;
50:
1.1.2.20 misho 51: ioTRACE(5);
1.1.2.15 misho 52:
1.1.2.14 misho 53: if (!sess)
54: return;
55:
56: for (i = 0; i < MQTT_QOS_RESERVED; i++)
57: while ((store = SLIST_FIRST(&sess->sess_store[i]))) {
58: SLIST_REMOVE_HEAD(&sess->sess_store[i], st_node);
59: free(store);
60: }
61:
62: if (sess->sess_will.msg)
63: free(sess->sess_will.msg);
64: if (sess->sess_will.topic)
65: free(sess->sess_will.topic);
66:
67: if (sess->sess_sock > STDERR_FILENO) {
68: shutdown(sess->sess_sock, SHUT_RDWR);
69: close(sess->sess_sock);
70: }
71:
72: mqtt_msgFree(&sess->sess_buf, 42);
73:
74: free(sess);
75: }
76:
1.1.2.5 misho 77: static void *
1.1.2.15 misho 78: thrSession(struct tagSession *sess)
79: {
1.1.2.18 misho 80: void thrClean(struct tagSession *sess)
81: {
82: pthread_mutex_lock(&mtx_sess);
83: TAILQ_REMOVE(&Sessions, sess, sess_node);
84: pthread_mutex_unlock(&mtx_sess);
1.1.2.20 misho 85: ioDEBUG(1, "Close socket=%d", sess->sess_sock);
1.1.2.18 misho 86: finiSession(sess);
87: }
88:
89: pthread_cleanup_push((void(*)(void*)) thrClean, sess);
90:
1.1.2.20 misho 91: ioTRACE(2);
1.1.2.15 misho 92:
1.1.2.18 misho 93: pthread_cleanup_pop(42);
1.1.2.15 misho 94: pthread_exit(NULL);
95: }
96:
97: static void *
1.1.2.5 misho 98: startSession(sched_task_t *task)
1.1.2.4 misho 99: {
1.1.2.11 misho 100: u_char basebuf[USHRT_MAX];
1.1.2.18 misho 101: mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf };
1.1.2.10 misho 102: mqtthdr_connflgs_t flg;
1.1.2.13 misho 103: mqtthdr_connack_t cack;
1.1.2.12 misho 104: struct tagSession *sess = NULL;
1.1.2.18 misho 105: int ret;
106: pthread_attr_t attr;
1.1.2.6 misho 107:
1.1.2.20 misho 108: ioTRACE(4);
1.1.2.6 misho 109:
1.1.2.14 misho 110: sess = initSession(TASK_FD(task), TASK_ARG(task));
1.1.2.15 misho 111: if (!sess) {
1.1.2.18 misho 112: io_freeVar(TASK_ARG(task));
1.1.2.15 misho 113: close(TASK_FD(task));
1.1.2.14 misho 114: return NULL;
1.1.2.15 misho 115: }
1.1.2.6 misho 116:
1.1.2.18 misho 117: /* receive & decode packet */
1.1.2.14 misho 118: if (recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0) == -1) {
1.1.2.20 misho 119: ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno));
1.1.2.18 misho 120: finiSession(sess);
121: return NULL;
1.1.2.9 misho 122: }
1.1.2.14 misho 123: cack = mqtt_readCONNECT(&buf, &sess->sess_ka, sess->sess_cid, sizeof sess->sess_cid,
1.1.2.12 misho 124: sess->sess_user, sizeof sess->sess_user, sess->sess_pass, sizeof sess->sess_pass,
1.1.2.13 misho 125: &sess->sess_will.topic, &sess->sess_will.msg);
1.1.2.18 misho 126: ret = cack.retcode;
1.1.2.14 misho 127: flg.flags = cack.reserved;
128: if (flg.reserved) {
1.1.2.20 misho 129: ioDEBUG(3, "Error:: in MQTT protocol #%d - %s", mqtt_GetErrno(), mqtt_GetError());
1.1.2.10 misho 130: goto end;
1.1.2.14 misho 131: } else {
132: sess->sess_clean = flg.clean_sess;
133: sess->sess_will.qos = flg.will_qos;
134: sess->sess_will.retain = flg.will_retain;
135: sess->sess_will.flag = flg.will_flg;
1.1.2.12 misho 136: }
1.1.2.6 misho 137:
1.1.2.8 misho 138: /* check online table for user */
1.1.2.18 misho 139: if (call.LoginACC(&cfg, acc, sess->sess_user, sess->sess_pass) < 1) {
1.1.2.20 misho 140: ioDEBUG(0, "Login:: DENIED for username %s and password %s",
1.1.2.16 misho 141: sess->sess_user, sess->sess_pass);
1.1.2.21! misho 142: ret = MQTT_RETCODE_DENIED;
1.1.2.16 misho 143: goto end;
1.1.2.21! misho 144: } else {
1.1.2.20 misho 145: ioDEBUG(0, "Login:: ALLOWED for username %s ...", sess->sess_user);
1.1.2.21! misho 146: ret = MQTT_RETCODE_ACCEPTED;
! 147: }
1.1.2.6 misho 148:
1.1.2.18 misho 149: ret = mqtt_msgCONNACK(&msg, ret);
150: if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) {
1.1.2.20 misho 151: ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno));
1.1.2.18 misho 152: finiSession(sess);
153: return NULL;
154: } else {
1.1.2.20 misho 155: ioDEBUG(5, "Sended %d bytes", ret);
1.1.2.19 misho 156: free(msg.msg_base);
157: msg.msg_len = 0;
1.1.2.18 misho 158: }
159:
1.1.2.15 misho 160: /* Start session thread OK ... */
1.1.2.18 misho 161: pthread_attr_init(&attr);
162: pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
163:
164: pthread_mutex_lock(&mtx_sess);
1.1.2.15 misho 165: TAILQ_INSERT_TAIL(&Sessions, sess, sess_node);
1.1.2.18 misho 166: pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess);
167: pthread_mutex_unlock(&mtx_sess);
168:
1.1.2.20 misho 169: ioDEBUG(1, "ConnID=%s(%s) for %s login OK!", sess->sess_cid, sess->sess_user, sess->sess_addr);
1.1.2.18 misho 170:
171: pthread_attr_destroy(&attr);
1.1.2.15 misho 172: return NULL;
1.1.2.6 misho 173: end: /* close client connection */
1.1.2.18 misho 174: ret = mqtt_msgCONNACK(&msg, ret);
175: if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) {
1.1.2.20 misho 176: ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno));
1.1.2.18 misho 177: } else {
1.1.2.20 misho 178: ioDEBUG(5, "Sended %d bytes", ret);
1.1.2.19 misho 179: free(msg.msg_base);
180: msg.msg_len = 0;
1.1.2.18 misho 181: }
182:
1.1.2.20 misho 183: ioDEBUG(1, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock);
1.1.2.15 misho 184: finiSession(sess);
1.1.2.6 misho 185: return NULL;
1.1.2.4 misho 186: }
187:
188: /* ----------------------------------------------------------------------- */
189:
1.1.2.5 misho 190: static void *
191: thrSched(void *arg __unused)
192: {
1.1.2.18 misho 193: struct tagSession *sess;
1.1.2.5 misho 194:
1.1.2.20 misho 195: ioTRACE(1);
196:
197: schedRun(root, &Kill);
1.1.2.18 misho 198:
199: TAILQ_FOREACH(sess, &Sessions, sess_node)
200: if (sess->sess_tid)
201: pthread_cancel(sess->sess_tid);
1.1.2.5 misho 202: pthread_exit(NULL);
203: }
204:
1.1.2.2 misho 205: int
1.1.2.3 misho 206: Run(int sock)
1.1.2.2 misho 207: {
1.1.2.4 misho 208: io_sockaddr_t sa;
209: socklen_t sslen = sizeof sa.ss;
210: int cli;
1.1.2.5 misho 211: pthread_t tid;
1.1.2.18 misho 212: ait_val_t *v;
1.1.2.4 misho 213:
1.1.2.20 misho 214: ioTRACE(1);
1.1.2.2 misho 215:
1.1.2.5 misho 216: if (pthread_create(&tid, NULL, thrSched, NULL)) {
1.1.2.20 misho 217: ioLOGERR(0);
1.1.2.5 misho 218: return -1;
219: } else
220: pthread_detach(tid);
1.1.2.20 misho 221: ioDEBUG(2, "Run scheduler management thread");
1.1.2.5 misho 222:
1.1.2.20 misho 223: if (listen(sock, 5 /*SOMAXCONN*/) == -1) {
224: ioLOGERR(0);
1.1.2.3 misho 225: return -1;
226: }
227:
1.1.2.4 misho 228: while (!Kill) {
1.1.2.20 misho 229: printf("%%%%%%%%%%rrrrrrrrrrrrrrrrrrrrr errno=%d\n", errno);
1.1.2.4 misho 230: if ((cli = accept(sock, &sa.sa, &sslen)) == -1) {
1.1.2.20 misho 231: printf("rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr errno=%d\n", errno);
232: if (!Kill)
233: continue;
234: ioLOGERR(0);
235: break;
1.1.2.18 misho 236: }
237: v = io_allocVar();
238: if (!v) {
239: ioLIBERR(mqtt);
240: break;
1.1.2.4 misho 241: } else
1.1.2.18 misho 242: io_n2addr(&sa, v);
1.1.2.20 misho 243: ioDEBUG(1, "Connected client with socket=%d from %s:%d", cli,
1.1.2.18 misho 244: AIT_GET_STR(v), io_n2port(&sa));
1.1.2.4 misho 245:
1.1.2.18 misho 246: if (!schedRead(root, startSession, v, cli)) {
247: io_freeVar(v);
1.1.2.4 misho 248: close(cli);
1.1.2.20 misho 249: ioDEBUG(1, "Terminated client with socket=%d", cli);
1.1.2.4 misho 250: }
251: }
252:
1.1.2.2 misho 253: return 0;
254: }
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