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| version 1.1.2.6, 2011/12/01 14:41:11 | version 1.1.2.18, 2011/12/14 12:45:30 |
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| Line 1 | Line 1 |
| #include "global.h" | #include "global.h" |
| #include "rtlm.h" | |
| #include "mqttd.h" | |
| static inline struct tagSession * | |
| initSession(int sock, ait_val_t * __restrict v) | |
| { | |
| struct tagSession *sess = NULL; | |
| const char *str; | |
| FTRACE(5); | |
| if (!v) | |
| return NULL; | |
| sess = malloc(sizeof(struct tagSession)); | |
| if (!sess) { | |
| VERB(3) syslog(LOG_ERR, "Error:: in malloc #%d - %s", errno, strerror(errno)); | |
| io_freeVar(v); | |
| return NULL; | |
| } else | |
| memset(sess, 0, sizeof(struct tagSession)); | |
| str = (const char*) cfg_GetAttribute(&cfg, CFG("mqttd"), CFG("retry")); | |
| if (!str) | |
| sess->sess_retry = DEFAULT_RETRY; | |
| else | |
| sess->sess_retry = strtol(str, NULL, 0); | |
| sess->sess_buf = mqtt_msgAlloc(0); | |
| if (!sess->sess_buf) { | |
| VERB(3) syslog(LOG_ERR, "Error:: in msgAlloc #%d - %s", mqtt_GetErrno(), mqtt_GetError()); | |
| free(sess); | |
| io_freeVar(v); | |
| return NULL; | |
| } | |
| sess->sess_sock = sock; | |
| strlcpy(sess->sess_addr, AIT_GET_STR(v), sizeof sess->sess_addr); | |
| io_freeVar(v); | |
| return sess; | |
| } | |
| static void | |
| finiSession(struct tagSession *sess) | |
| { | |
| register int i; | |
| struct tagStore *store; | |
| FTRACE(5); | |
| if (!sess) | |
| return; | |
| for (i = 0; i < MQTT_QOS_RESERVED; i++) | |
| while ((store = SLIST_FIRST(&sess->sess_store[i]))) { | |
| SLIST_REMOVE_HEAD(&sess->sess_store[i], st_node); | |
| free(store); | |
| } | |
| if (sess->sess_will.msg) | |
| free(sess->sess_will.msg); | |
| if (sess->sess_will.topic) | |
| free(sess->sess_will.topic); | |
| if (sess->sess_sock > STDERR_FILENO) { | |
| shutdown(sess->sess_sock, SHUT_RDWR); | |
| close(sess->sess_sock); | |
| } | |
| mqtt_msgFree(&sess->sess_buf, 42); | |
| free(sess); | |
| } | |
| static void * | static void * |
| thrSession(struct tagSession *sess) | |
| { | |
| void thrClean(struct tagSession *sess) | |
| { | |
| pthread_mutex_lock(&mtx_sess); | |
| TAILQ_REMOVE(&Sessions, sess, sess_node); | |
| pthread_mutex_unlock(&mtx_sess); | |
| VERB(1) syslog(LOG_DEBUG, "Close socket=%d", sess->sess_sock); | |
| finiSession(sess); | |
| } | |
| pthread_cleanup_push((void(*)(void*)) thrClean, sess); | |
| FTRACE(2); | |
| pthread_cleanup_pop(42); | |
| pthread_exit(NULL); | |
| } | |
| static void * | |
| startSession(sched_task_t *task) | startSession(sched_task_t *task) |
| { | { |
| mqtt_msg_t *buf; | u_char basebuf[USHRT_MAX]; |
| mqtt_cb_t cbs[MQTT_TYPE_MAX + 1] = { 0 }; | mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; |
| int ret = 0; | mqtthdr_connflgs_t flg; |
| mqtthdr_connack_t cack; | |
| struct tagSession *sess = NULL; | |
| int ret; | |
| pthread_attr_t attr; | |
| FTRACE(4); | FTRACE(4); |
| buf = mqtt_msgAlloc(USHRT_MAX); | sess = initSession(TASK_FD(task), TASK_ARG(task)); |
| if (!buf) { | if (!sess) { |
| syslog(LOG_ERR, "Error:: allocate message buf (%d) #%d - %s", (int) TASK_FD(task), | io_freeVar(TASK_ARG(task)); |
| mqtt_GetErrno(), mqtt_GetError()); | close(TASK_FD(task)); |
| return NULL; | |
| } | |
| /* receive & decode packet */ | |
| if (recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0) == -1) { | |
| VERB(3) syslog(LOG_ERR, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | |
| finiSession(sess); | |
| return NULL; | |
| } | |
| cack = mqtt_readCONNECT(&buf, &sess->sess_ka, sess->sess_cid, sizeof sess->sess_cid, | |
| sess->sess_user, sizeof sess->sess_user, sess->sess_pass, sizeof sess->sess_pass, | |
| &sess->sess_will.topic, &sess->sess_will.msg); | |
| ret = cack.retcode; | |
| flg.flags = cack.reserved; | |
| if (flg.reserved) { | |
| VERB(3) syslog(LOG_ERR, "Error:: in MQTT protocol #%d - %s", mqtt_GetErrno(), mqtt_GetError()); | |
| goto end; | goto end; |
| } else { | |
| sess->sess_clean = flg.clean_sess; | |
| sess->sess_will.qos = flg.will_qos; | |
| sess->sess_will.retain = flg.will_retain; | |
| sess->sess_will.flag = flg.will_flg; | |
| } | } |
| if (recv(TASK_FD(task), buf->msg_base, buf->msg_len, 0) == -1) { | /* check online table for user */ |
| syslog(LOG_ERR, "Error:: recv(%d) #%d - %s", (int) TASK_FD(task), | if (call.LoginACC(&cfg, acc, sess->sess_user, sess->sess_pass) < 1) { |
| errno, strerror(errno)); | VERB(1) syslog(LOG_WARNING, "Login:: DENIED for username %s and password %s", |
| mqtt_msgFree(&buf, 42); | sess->sess_user, sess->sess_pass); |
| goto end; | goto end; |
| } else | |
| VERB(1) syslog(LOG_WARNING, "Login:: ALLOWED for username %s ...", sess->sess_user); | |
| ret = mqtt_msgCONNACK(&msg, ret); | |
| if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { | |
| VERB(3) syslog(LOG_ERR, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | |
| finiSession(sess); | |
| return NULL; | |
| } else { | |
| VERB(5) ioLOGGER(LOG_DEBUG, "Sended %d bytes", ret); | |
| mqtt_msgFree((mqtt_msg_t**) &msg, 0); | |
| } | } |
| ret = mqttDispatcher(cbs, buf); | /* Start session thread OK ... */ |
| pthread_attr_init(&attr); | |
| pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); | |
| mqtt_msgFree(&buf, 42); | pthread_mutex_lock(&mtx_sess); |
| TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); | |
| pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess); | |
| pthread_mutex_unlock(&mtx_sess); | |
| switch (ret) { | VERB(1) ioLOGGER(LOG_DEBUG, "ConnID=%s(%s) for %s login OK!", |
| case -1: | sess->sess_cid, sess->sess_user, sess->sess_addr); |
| syslog(LOG_ERR, "Error:: in MQTT protocol #%d - %s", mqtt_GetErrno(), mqtt_GetError()); | |
| break; | pthread_attr_destroy(&attr); |
| default: | return NULL; |
| return NULL; | |
| } | |
| end: /* close client connection */ | end: /* close client connection */ |
| close(TASK_FD(task)); | ret = mqtt_msgCONNACK(&msg, ret); |
| VERB(1) syslog(LOG_DEBUG, "Close client %s with socket=%d", | if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { |
| (char*) TASK_ARG(task), (int) TASK_FD(task)); | VERB(3) syslog(LOG_ERR, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| if (TASK_ARG(task)) | } else { |
| free(TASK_ARG(task)); | VERB(5) ioLOGGER(LOG_DEBUG, "Sended %d bytes", ret); |
| mqtt_msgFree((mqtt_msg_t**) &msg, 0); | |
| } | |
| VERB(1) ioLOGGER(LOG_DEBUG, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock); | |
| finiSession(sess); | |
| return NULL; | return NULL; |
| } | } |
| Line 50 static void * | Line 187 static void * |
| thrSched(void *arg __unused) | thrSched(void *arg __unused) |
| { | { |
| FTRACE(1); | FTRACE(1); |
| struct tagSession *sess; | |
| schedRun(root, (intptr_t*) &Kill); | schedRun(root, (intptr_t*) &Kill); |
| TAILQ_FOREACH(sess, &Sessions, sess_node) | |
| if (sess->sess_tid) | |
| pthread_cancel(sess->sess_tid); | |
| pthread_exit(NULL); | pthread_exit(NULL); |
| } | } |
| Line 61 Run(int sock) | Line 203 Run(int sock) |
| io_sockaddr_t sa; | io_sockaddr_t sa; |
| socklen_t sslen = sizeof sa.ss; | socklen_t sslen = sizeof sa.ss; |
| int cli; | int cli; |
| char *str = NULL, szAddr[STRSIZ] = { 0 }; | |
| pthread_t tid; | pthread_t tid; |
| ait_val_t *v; | |
| FTRACE(1); | FTRACE(1); |
| Line 71 Run(int sock) | Line 213 Run(int sock) |
| return -1; | return -1; |
| } else | } else |
| pthread_detach(tid); | pthread_detach(tid); |
| VERB(2) syslog(LOG_DEBUG, "Run scheduler management thread"); | VERB(2) ioLOGGER(LOG_DEBUG, "Run scheduler management thread"); |
| if (listen(sock, SOMAXCONN) == -1) { | if (listen(sock, SOMAXCONN) == -1) { |
| syslog(LOG_ERR, "Error:: listen(%d) #%d - %s\n", sock, errno, strerror(errno)); | syslog(LOG_ERR, "Error:: listen(%d) #%d - %s\n", sock, errno, strerror(errno)); |
| Line 83 Run(int sock) | Line 225 Run(int sock) |
| if ((cli = accept(sock, &sa.sa, &sslen)) == -1) { | if ((cli = accept(sock, &sa.sa, &sslen)) == -1) { |
| syslog(LOG_ERR, "Error:: accept() #%d - %s", errno, strerror(errno)); | syslog(LOG_ERR, "Error:: accept() #%d - %s", errno, strerror(errno)); |
| continue; | continue; |
| } | |
| v = io_allocVar(); | |
| if (!v) { | |
| ioLIBERR(mqtt); | |
| break; | |
| } else | } else |
| VERB(1) { | io_n2addr(&sa, v); |
| switch (sa.sa.sa_family) { | VERB(1) ioLOGGER(LOG_DEBUG, "Connected client with socket=%d from %s:%d", cli, |
| case AF_INET: | AIT_GET_STR(v), io_n2port(&sa)); |
| inet_ntop(AF_INET, &sa.sin.sin_addr, szAddr, sslen); | |
| snprintf(szAddr, sizeof szAddr, "%s:%d", | |
| szAddr, ntohs(sa.sin.sin_port)); | |
| break; | |
| case AF_INET6: | |
| inet_ntop(AF_INET6, &sa.sin6.sin6_addr, szAddr, sslen); | |
| snprintf(szAddr, sizeof szAddr, "%s:%d", | |
| szAddr, ntohs(sa.sin6.sin6_port)); | |
| break; | |
| case AF_LOCAL: | |
| strlcpy(szAddr, sa.sun.sun_path, sizeof szAddr); | |
| break; | |
| default: | |
| close(cli); | |
| syslog(LOG_ERR, "Error:: unsupported address type %d", | |
| sa.sa.sa_family); | |
| continue; | |
| } | |
| str = strdup(szAddr); | |
| syslog(LOG_DEBUG, "Connected client with socket=%d from %s", cli, str); | |
| } | |
| if (!schedRead(root, startSession, str, cli)) { | if (!schedRead(root, startSession, v, cli)) { |
| io_freeVar(v); | |
| close(cli); | close(cli); |
| VERB(1) syslog(LOG_DEBUG, "Terminated client with socket=%d", cli); | VERB(1) ioLOGGER(LOG_DEBUG, "Terminated client with socket=%d", cli); |
| if (str) | |
| free(str); | |
| } | } |
| } | } |