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version 1.1.2.9, 2011/12/05 14:11:47
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version 1.2.2.8, 2012/04/15 23:45:34
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Line 1
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Line 1
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| #include "global.h" |
#include "global.h" |
| |
#include "rtlm.h" |
| |
#include "utils.h" |
| |
#include "mqttd.h" |
| |
#include "mqttd_calls.h" |
| |
|
| |
|
| extern char cliCmd[], *cliStr[]; | static void *startSession(sched_task_t *task); |
| |
|
| |
|
| static void * | static inline struct tagSession * |
| startSession(sched_task_t *task) | initSession(int sock, ait_val_t * __restrict v) |
| { |
{ |
| static u_char basebuf[USHRT_MAX]; | struct tagSession *sess = NULL; |
| mqtt_cb_t cbs[MQTT_TYPE_MAX + 1] = { 0 }; | const char *str; |
| mqtt_msg_t *buf; | |
| int ret = 0; | |
| |
|
| FTRACE(4); | ioTRACE(5); |
| |
|
| /* | if (!v) |
| buf = mqtt_msgAlloc(USHRT_MAX); | return NULL; |
| if (!buf) { | |
| syslog(LOG_ERR, "Error:: allocate message buf (%d) #%d - %s", (int) TASK_FD(task), | sess = malloc(sizeof(struct tagSession)); |
| mqtt_GetErrno(), mqtt_GetError()); | if (!sess) { |
| goto end; | ioDEBUG(3, "Error:: in malloc #%d - %s", errno, strerror(errno)); |
| | io_freeVar(v); |
| | return NULL; |
| | } else |
| | memset(sess, 0, sizeof(struct tagSession)); |
| | |
| | pthread_mutex_init(&sess->sess_mtx, NULL); |
| | |
| | SLIST_INIT(&sess->sess_txque[MQTT_QOS_ONCE]); |
| | SLIST_INIT(&sess->sess_txque[MQTT_QOS_ACK]); |
| | SLIST_INIT(&sess->sess_txque[MQTT_QOS_EXACTLY]); |
| | |
| | str = cfg_getAttribute(&cfg, "mqttd", "retry"); |
| | if (!str) |
| | sess->sess_retry = DEFAULT_RETRY; |
| | else |
| | sess->sess_retry = strtol(str, NULL, 0); |
| | |
| | sess->sess_buf = mqtt_msgAlloc(USHRT_MAX); |
| | if (!sess->sess_buf) { |
| | ioDEBUG(3, "Error:: in msgAlloc #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
| | free(sess); |
| | io_freeVar(v); |
| | return NULL; |
| } |
} |
| */ |
|
| |
|
| if (recv(TASK_FD(task), basebuf, sizeof basebuf, 0) == -1) { | /* init server actor */ |
| VERB(3) syslog(LOG_ERR, "Error:: recv(%d) #%d - %s", (int) TASK_FD(task), | sess->sess_srv = mqtt_srv_Init(sock, sess->sess_buf); |
| errno, strerror(errno)); | if (!sess->sess_srv) { |
| goto end; | ioDEBUG(3, "Error:: in srv_Init #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
| | mqtt_msgFree(&sess->sess_buf, 42); |
| | free(sess); |
| | io_freeVar(v); |
| | return NULL; |
| | } else { |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_CONNECT, cmdCONNECT); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PUBLISH, cmdPUBLISH); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PUBREL, cmdPUBREL); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_SUBSCRIBE, cmdSUBSCRIBE); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_UNSUBSCRIBE, cmdUNSUBSCRIBE); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PINGREQ, cmdPINGREQ); |
| | mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_DISCONNECT, cmdDISCONNECT); |
| } |
} |
| |
|
| /* | sess->sess_sock = sock; |
| for (ret = i = 0; cliCmd[i] && !(ret = (hdr->mqtt_msg.type == cliCmd[i])); i++); | strlcpy(sess->sess_addr, (char*) AIT_GET_STR(v), sizeof sess->sess_addr); |
| if (!ret) { | io_freeVar(v); |
| VERB(2) syslog(LOG_ERR, "Error:: wrong command type #%d %s", | return sess; |
| hdr->mqtt_msg.type, cliStr[i]); | } |
| goto end; | |
| | static void |
| | finiSession(struct tagSession *sess, int preservSock) |
| | { |
| | struct tagStore *store; |
| | register int i; |
| | |
| | ioTRACE(5); |
| | |
| | if (!sess) |
| | return; |
| | |
| | if (call.FiniSessPUB) |
| | call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%"); |
| | |
| | SESS_ELEM_LOCK(sess); |
| | for (i = 0; i < MQTT_QOS_RESERVED; i++) |
| | while ((store = SLIST_FIRST(&sess->sess_txque[i]))) { |
| | SLIST_REMOVE_HEAD(&sess->sess_txque[i], st_node); |
| | |
| | if (store->st_subscr.sub_topic.msg_base) |
| | free(store->st_subscr.sub_topic.msg_base); |
| | if (store->st_subscr.sub_value.msg_base) |
| | free(store->st_subscr.sub_value.msg_base); |
| | |
| | free(store); |
| } |
} |
| */ | SESS_ELEM_UNLOCK(sess); |
| | pthread_mutex_destroy(&sess->sess_mtx); |
| |
|
| /* check online table for user */ | if (sess->sess_will.msg) |
| // ChkSessPUB(&cfg, ); | free(sess->sess_will.msg); |
| | if (sess->sess_will.topic) |
| | free(sess->sess_will.topic); |
| |
|
| ret = mqttDispatcher(cbs, buf); | if (sess->sess_sock > STDERR_FILENO && !preservSock) |
| // mqtt_msgFree(&buf, 42); | srv_Close(sess->sess_sock); |
| |
|
| switch (ret) { | mqtt_srv_Fini(&sess->sess_srv); |
| case -1: | mqtt_msgFree(&sess->sess_buf, 42); |
| syslog(LOG_ERR, "Error:: in MQTT protocol #%d - %s", mqtt_GetErrno(), mqtt_GetError()); | |
| | free(sess); |
| | } |
| | |
| | static void |
| | stopSession(struct tagSession *sess) |
| | { |
| | mqtt_msg_t msg = { NULL, 0 }; |
| | int ret; |
| | |
| | ioTRACE(4); |
| | |
| | assert(sess); |
| | |
| | SESS_LOCK; |
| | TAILQ_REMOVE(&Sessions, sess, sess_node); |
| | SESS_UNLOCK; |
| | |
| | ret = mqtt_msgDISCONNECT(&msg); |
| | if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) |
| | ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| | else { |
| | ioDEBUG(5, "Sended %d bytes for disconnect", ret); |
| | free(msg.msg_base); |
| | memset(&msg, 0, sizeof msg); |
| | } |
| | |
| | ioDEBUG(1, "Close socket=%d", sess->sess_sock); |
| | finiSession(sess, 0); |
| | |
| | call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
| | sess->sess_addr, sess->sess_user); |
| | } |
| | |
| | static int |
| | KASession(struct tagSession *sess) |
| | { |
| | mqtt_msg_t msg = { NULL, 0 }; |
| | int ret; |
| | struct pollfd pfd; |
| | |
| | ioTRACE(4); |
| | |
| | assert(sess); |
| | |
| | /* ping request */ |
| | ret = mqtt_msgPINGREQ(&msg); |
| | if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { |
| | ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| | return -1; |
| | } else { |
| | ioDEBUG(5, "Sended %d bytes for ping request", ret); |
| | free(msg.msg_base); |
| | memset(&msg, 0, sizeof msg); |
| | } |
| | |
| | pfd.fd = sess->sess_sock; |
| | pfd.events = POLLIN | POLLPRI; |
| | if ((ret = poll(&pfd, 1, sess->sess_ka * 1000)) == -1 || |
| | pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
| | ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| | return -1; |
| | } else if (!ret) { |
| | ioDEBUG(5, "Warning:: Session is abandoned ... must be disconnect!"); |
| | return 1; |
| | } |
| | /* receive & decode packet */ |
| | if (recv(sess->sess_sock, sess->sess_buf->msg_base, sess->sess_buf->msg_len, 0) == -1) { |
| | ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| | return -1; |
| | } |
| | if (mqtt_readPINGRESP(sess->sess_buf)) { |
| | ioDEBUG(5, "Warning:: Session is broken, not hear ping response ... must be disconnect!"); |
| | return 2; |
| | } |
| | |
| | /* Keep Alive is OK! */ |
| | return 0; |
| | } |
| | |
| | static void * |
| | thrSession(struct tagSession *sess) |
| | { |
| | int ret, locKill = 42; |
| | struct pollfd pfd; |
| | struct mqtthdr *hdr; |
| | ait_val_t *v; |
| | |
| | pthread_cleanup_push((void(*)(void*)) stopSession, sess); |
| | ioTRACE(2); |
| | |
| | pfd.fd = sess->sess_sock; |
| | pfd.events = POLLIN | POLLPRI; |
| | while (!Kill && locKill) { |
| | if ((ret = poll(&pfd, 1, sess->sess_ka * 1000)) == -1 || |
| | pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
| | ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| break; |
break; |
| default: | } else if (!ret && (ret = KASession(sess))) { |
| | call.LOG(logg, "Session %s keep-alive missing from %s for user %s ...\n", |
| | sess->sess_cid, sess->sess_addr, sess->sess_user); |
| | break; |
| | } |
| | /* receive & decode packet */ |
| | if ((ret = recv(sess->sess_sock, sess->sess_buf->msg_base, sess->sess_buf->msg_len, 0)) == -1) { |
| | ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| | break; |
| | } else if (!ret) { |
| | ioDEBUG(4, "Session %s EOF received.", sess->sess_cid); |
| | break; |
| | } else |
| | hdr = (struct mqtthdr*) sess->sess_buf->msg_base; |
| | |
| | /* dispatch message type */ |
| | if (mqtt_srv_Dispatch(sess->sess_srv, sess)) |
| | ioLIBERR(mqtt); |
| | switch (hdr->mqtt_msg.type) { |
| | case MQTT_TYPE_CONNECT: |
| | ioDEBUG(5, "Exec CONNECT session"); |
| | if ((v = io_allocVar())) { |
| | AIT_SET_STR(v, sess->sess_addr); |
| | if (!schedEvent(root, startSession, v, (u_long) sess->sess_sock, sess, ret)) |
| | io_freeVar(v); |
| | } else |
| | ioLIBERR(mqtt); |
| | locKill ^= locKill; |
| | continue; |
| | case MQTT_TYPE_DISCONNECT: |
| | ioDEBUG(5, "Exec DISCONNECT session"); |
| | finiSession(sess, 0); |
| | locKill ^= locKill; |
| | continue; |
| | case MQTT_TYPE_PUBLISH: |
| | ioDEBUG(5, "Exec PUBLISH topic QoS=%d", hdr->mqtt_msg.qos); |
| | /* |
| | if (cmdPUBLISH(sess)) |
| | locKill ^= locKill; |
| | */ |
| | break; |
| | case MQTT_TYPE_PUBREL: |
| | break; |
| | case MQTT_TYPE_SUBSCRIBE: |
| | break; |
| | case MQTT_TYPE_UNSUBSCRIBE: |
| | break; |
| | case MQTT_TYPE_PINGREQ: |
| | ioDEBUG(5, "Exec PINGREQ session"); |
| | break; |
| | default: |
| | ioDEBUG(5, "Error:: Session %s, wrong command %d - DISCARDED", |
| | sess->sess_cid, hdr->mqtt_msg.type); |
| | break; |
| | } |
| | } |
| | |
| | pthread_cleanup_pop(locKill); |
| | pthread_exit(NULL); |
| | } |
| | |
| | static void * |
| | startSession(sched_task_t *task) |
| | { |
| | u_char basebuf[USHRT_MAX]; |
| | mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; |
| | mqtthdr_connflgs_t flg; |
| | mqtthdr_connack_t cack; |
| | struct tagSession *s, *sess = NULL; |
| | int ret; |
| | pthread_attr_t attr; |
| | |
| | ioTRACE(4); |
| | |
| | assert(task); |
| | |
| | if (!TASK_DATA(task)) { |
| | /* flow from accept new clients */ |
| | sess = initSession(TASK_FD(task), TASK_ARG(task)); |
| | if (!sess) { |
| | io_freeVar(TASK_ARG(task)); |
| | close(TASK_FD(task)); |
| return NULL; |
return NULL; |
| |
} |
| |
|
| |
/* receive & decode packet */ |
| |
if (recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0) == -1) { |
| |
ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| |
finiSession(sess, 0); |
| |
return NULL; |
| |
} |
| |
} else { |
| |
sess = TASK_DATA(task); |
| |
buf.msg_len = TASK_DATLEN(task) > sizeof basebuf ? sizeof basebuf : TASK_DATLEN(task); |
| |
memcpy(buf.msg_base, sess->sess_buf->msg_base, buf.msg_len); |
| } |
} |
| |
|
| |
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) { |
| |
ioDEBUG(3, "Error:: in MQTT protocol #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
| |
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; |
| |
} |
| |
|
| |
/* check online table for user */ |
| |
if (call.LoginACC(&cfg, acc, sess->sess_user, sess->sess_pass) < 1) { |
| |
ioDEBUG(0, "Login:: DENIED for username %s and password %s", |
| |
sess->sess_user, sess->sess_pass); |
| |
ret = MQTT_RETCODE_DENIED; |
| |
goto end; |
| |
} else { |
| |
ioDEBUG(1, "Login:: ALLOWED for username %s ...", sess->sess_user); |
| |
ret = MQTT_RETCODE_ACCEPTED; |
| |
} |
| |
if (call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%") > 0) { |
| |
ioDEBUG(2, "Old session %s should be disconnect!", sess->sess_cid); |
| |
TAILQ_FOREACH(s, &Sessions, sess_node) |
| |
if (!strcmp(s->sess_cid, sess->sess_cid)) { |
| |
/* found stale session & disconnect it! */ |
| |
stopSession(s); |
| |
break; |
| |
} |
| |
} |
| |
if (call.InitSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, sess->sess_addr, |
| |
sess->sess_will.flag, sess->sess_will.topic, sess->sess_will.msg, |
| |
sess->sess_will.qos, sess->sess_will.retain) == -1) { |
| |
ioDEBUG(0, "Session %s DENIED for username %s", sess->sess_cid, sess->sess_user); |
| |
ret = MQTT_RETCODE_DENIED; |
| |
goto end; |
| |
} else { |
| |
ioDEBUG(0, "Session %s from %s and username %s is started", |
| |
sess->sess_cid, sess->sess_addr, sess->sess_user); |
| |
ret = MQTT_RETCODE_ACCEPTED; |
| |
} |
| |
|
| |
ret = mqtt_msgCONNACK(&msg, ret); |
| |
if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { |
| |
ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| |
finiSession(sess, 0); |
| |
return NULL; |
| |
} else { |
| |
ioDEBUG(5, "Sended %d bytes", ret); |
| |
free(msg.msg_base); |
| |
memset(&msg, 0, sizeof msg); |
| |
} |
| |
|
| |
/* Start session thread OK ... */ |
| |
pthread_attr_init(&attr); |
| |
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
| |
|
| |
SESS_LOCK; |
| |
TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); |
| |
pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess); |
| |
SESS_UNLOCK; |
| |
|
| |
call.LOG(logg, "Session %s started from %s for user %s (timeout=%d) OK!\n", sess->sess_cid, |
| |
sess->sess_addr, sess->sess_user, sess->sess_ka); |
| |
|
| |
pthread_attr_destroy(&attr); |
| |
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)); | ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
| if (TASK_ARG(task)) | } else { |
| free(TASK_ARG(task)); | ioDEBUG(5, "Sended %d bytes", ret); |
| | free(msg.msg_base); |
| | memset(&msg, 0, sizeof msg); |
| | } |
| | |
| | ioDEBUG(1, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock); |
| | finiSession(sess, 0); |
| return NULL; |
return NULL; |
| } |
} |
| |
|
|
Line 65 end: /* close client connection */
|
Line 396 end: /* close client connection */
|
| static void * |
static void * |
| thrSched(void *arg __unused) |
thrSched(void *arg __unused) |
| { |
{ |
| FTRACE(1); | struct tagSession *sess; |
| | struct timespec pl = { 0, 100000000 }; |
| |
|
| schedRun(root, (intptr_t*) &Kill); | ioTRACE(1); |
| | |
| | /* start scheduler loop */ |
| | schedPolling(root, &pl, NULL); |
| | schedRun(root, &Kill); |
| | |
| | TAILQ_FOREACH(sess, &Sessions, sess_node) |
| | if (sess->sess_tid) |
| | pthread_cancel(sess->sess_tid); |
| | ioDEBUG(5, "EXIT from Scheduler thread !!!"); |
| pthread_exit(NULL); |
pthread_exit(NULL); |
| } |
} |
| |
|
|
Line 77 Run(int sock)
|
Line 418 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; |
| |
char str[STRSIZ]; |
| |
|
| FTRACE(1); | ioTRACE(1); |
| |
|
| |
/* start alternative thread for scheduler */ |
| if (pthread_create(&tid, NULL, thrSched, NULL)) { |
if (pthread_create(&tid, NULL, thrSched, NULL)) { |
| syslog(LOG_ERR, "Error:: thread scheduler #%d - %s", errno, strerror(errno)); | ioSYSERR(0); |
| return -1; |
return -1; |
| } else |
} else |
| pthread_detach(tid); |
pthread_detach(tid); |
| VERB(2) syslog(LOG_DEBUG, "Run scheduler management thread"); | ioDEBUG(2, "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)); | ioSYSERR(0); |
| pthread_cancel(tid); | |
| return -1; |
return -1; |
| } |
} |
| |
|
| |
/* state machine - accept new connections */ |
| while (!Kill) { |
while (!Kill) { |
| 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)); | if (!Kill) |
| continue; | continue; |
| } else | ioSYSERR(0); |
| VERB(1) { | break; |
| switch (sa.sa.sa_family) { | } |
| case AF_INET: | v = io_allocVar(); |
| inet_ntop(AF_INET, &sa.sin.sin_addr, szAddr, sslen); | if (!v) { |
| snprintf(szAddr, sizeof szAddr, "%s:%d", | ioLIBERR(io); |
| szAddr, ntohs(sa.sin.sin_port)); | break; |
| break; | } else { |
| case AF_INET6: | memset(str, 0, sizeof str); |
| inet_ntop(AF_INET6, &sa.sin6.sin6_addr, szAddr, sslen); | snprintf(str, sizeof str, "%s:%hu", io_n2addr(&sa, v), io_n2port(&sa)); |
| snprintf(szAddr, sizeof szAddr, "%s:%d", | AIT_FREE_VAL(v); |
| szAddr, ntohs(sa.sin6.sin6_port)); | AIT_SET_STR(v, str); |
| break; | } |
| case AF_LOCAL: | ioDEBUG(1, "Connected client with socket=%d from %s", cli, AIT_GET_STR(v)); |
| 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, NULL, 0)) { |
| | io_freeVar(v); |
| close(cli); |
close(cli); |
| VERB(1) syslog(LOG_DEBUG, "Terminated client with socket=%d", cli); | ioDEBUG(1, "Terminated client with socket=%d", cli); |
| if (str) | |
| free(str); | |
| } |
} |
| } |
} |
| |
|