version 1.2.2.22, 2012/05/03 15:05:37
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version 1.2.2.44, 2012/07/03 07:48:49
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#include "global.h" |
#include "global.h" |
#include "rtlm.h" |
#include "rtlm.h" |
#include "utils.h" |
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#include "mqttd.h" |
#include "mqttd.h" |
#include "mqttd_calls.h" |
#include "mqttd_calls.h" |
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#include "utils.h" |
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static void *startSession(sched_task_t *task); |
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static pthread_attr_t attr; |
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static inline struct tagSession * |
static inline struct tagSession * |
initSession(int sock, ait_val_t * __restrict v) |
initSession(int sock, ait_val_t * __restrict v) |
{ |
{ |
Line 20 initSession(int sock, ait_val_t * __restrict v)
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Line 16 initSession(int sock, ait_val_t * __restrict v)
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if (!v) |
if (!v) |
return NULL; |
return NULL; |
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sess = malloc(sizeof(struct tagSession)); | sess = io_malloc(sizeof(struct tagSession)); |
if (!sess) { |
if (!sess) { |
ioSYSERR(0); |
ioSYSERR(0); |
return NULL; |
return NULL; |
} else |
} else |
memset(sess, 0, sizeof(struct tagSession)); |
memset(sess, 0, sizeof(struct tagSession)); |
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pthread_mutex_init(&sess->sess_mtx, NULL); |
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SLIST_INIT(&sess->sess_subscr); |
SLIST_INIT(&sess->sess_subscr); |
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str = cfg_getAttribute(&cfg, "mqttd", "retry"); |
str = cfg_getAttribute(&cfg, "mqttd", "retry"); |
Line 40 initSession(int sock, ait_val_t * __restrict v)
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Line 34 initSession(int sock, ait_val_t * __restrict v)
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sess->sess_buf = mqtt_msgAlloc(USHRT_MAX); |
sess->sess_buf = mqtt_msgAlloc(USHRT_MAX); |
if (!sess->sess_buf) { |
if (!sess->sess_buf) { |
ioLIBERR(mqtt); |
ioLIBERR(mqtt); |
free(sess); | io_free(sess); |
return NULL; |
return NULL; |
} |
} |
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/* init server actor */ |
/* init server actor */ |
sess->sess_srv = mqtt_srv_Init(sock, sess->sess_buf); | sess->sess_srv = mqtt_srv_cliInit(sock, sess->sess_buf, sess->sess_ka, 1); |
if (!sess->sess_srv) { |
if (!sess->sess_srv) { |
ioDEBUG(3, "Error:: in srv_Init #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
ioDEBUG(3, "Error:: in srv_Init #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
mqtt_msgFree(&sess->sess_buf, 42); |
mqtt_msgFree(&sess->sess_buf, 42); |
free(sess); | io_free(sess); |
return NULL; |
return NULL; |
} else { |
} else { |
mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_CONNECT, cmdCONNECT); |
mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_CONNECT, cmdCONNECT); |
Line 76 finiSession(struct tagSession *sess)
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Line 70 finiSession(struct tagSession *sess)
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if (!sess) |
if (!sess) |
return; |
return; |
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if (call.FiniSessPUB) | schedCancelby(root, taskTIMER, CRITERIA_CALL, sendRetain, NULL); |
call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%"); | |
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SESS_ELEM_LOCK(sess); | if (sess->sess_clean) { |
| if (call.FiniSessPUB) |
| call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%"); |
| if (call.DeletePUB_subscribe) |
| call.DeletePUB_subscribe(&cfg, pub, sess->sess_cid, "%", sess->sess_user, "%"); |
| if (call.WipePUB_topic) |
| call.WipePUB_topic(&cfg, pub, sess->sess_cid, sess->sess_user, -1); |
| } |
| |
while ((store = SLIST_FIRST(&sess->sess_subscr))) { |
while ((store = SLIST_FIRST(&sess->sess_subscr))) { |
SLIST_REMOVE_HEAD(&sess->sess_subscr, st_node); |
SLIST_REMOVE_HEAD(&sess->sess_subscr, st_node); |
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Line 88 finiSession(struct tagSession *sess)
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Line 89 finiSession(struct tagSession *sess)
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if (store->st_subscr.sub_value.msg_base) |
if (store->st_subscr.sub_value.msg_base) |
free(store->st_subscr.sub_value.msg_base); |
free(store->st_subscr.sub_value.msg_base); |
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free(store); | io_free(store); |
} |
} |
SESS_ELEM_UNLOCK(sess); |
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pthread_mutex_destroy(&sess->sess_mtx); |
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if (sess->sess_will.msg) | if (sess->sess_will.flag) |
free(sess->sess_will.msg); | pubWill(sess); |
| |
if (sess->sess_will.topic) |
if (sess->sess_will.topic) |
free(sess->sess_will.topic); |
free(sess->sess_will.topic); |
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if (sess->sess_will.msg) |
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free(sess->sess_will.msg); |
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if (sess->sess_sock > STDERR_FILENO) |
if (sess->sess_sock > STDERR_FILENO) |
srv_Close(sess->sess_sock); |
srv_Close(sess->sess_sock); |
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mqtt_srv_Fini(&sess->sess_srv); | mqtt_srv_cliFini(&sess->sess_srv); |
mqtt_msgFree(&sess->sess_buf, 42); |
mqtt_msgFree(&sess->sess_buf, 42); |
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free(sess); | io_free(sess); |
} |
} |
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static void | static void * |
stopSession(struct tagSession *sess) | leaveClient(sched_task_t *task) |
{ |
{ |
mqtt_msg_t msg = { NULL, 0 }; | struct tagSession *sess; |
int ret; |
int ret; |
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ioTRACE(4); |
ioTRACE(4); |
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assert(task); |
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sess = TASK_ARG(task); |
assert(sess); |
assert(sess); |
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SESS_LOCK; |
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TAILQ_REMOVE(&Sessions, sess, sess_node); |
TAILQ_REMOVE(&Sessions, sess, sess_node); |
SESS_UNLOCK; |
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ret = mqtt_msgDISCONNECT(&msg); | ret = mqtt_msgDISCONNECT(sess->sess_buf); |
send(sess->sess_sock, msg.msg_base, ret, MSG_NOSIGNAL); | send(TASK_FD(task), sess->sess_buf->msg_base, ret, MSG_NOSIGNAL); |
free(msg.msg_base); | |
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ioDEBUG(1, "Close socket=%d", sess->sess_sock); | ioDEBUG(1, "Close socket=%ld", (long) TASK_FD(task)); |
call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
sess->sess_addr, sess->sess_user); |
sess->sess_addr, sess->sess_user); |
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finiSession(sess); |
finiSession(sess); |
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return NULL; |
} |
} |
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static void * |
static void * |
thrSession(struct tagSession *sess) | dispatchSession(sched_task_t *task) |
{ |
{ |
int ret, locKill = 42; | int ret, len = 0; |
struct pollfd pfd; | struct tagSession *sess; |
struct mqtthdr *hdr; | |
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pthread_cleanup_push((void(*)(void*)) stopSession, sess); |
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ioTRACE(2); |
ioTRACE(2); |
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pfd.fd = sess->sess_sock; | assert(task); |
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; | |
} else if (!ret && (ret = mqtt_KeepAlive(sess->sess_sock, sess->sess_ka, 1))) { | |
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; | |
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sess = TASK_ARG(task); |
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assert(sess); |
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/* receive & decode packet */ |
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if ((ret = recv(TASK_FD(task), sess->sess_buf->msg_base, sess->sess_buf->msg_len, 0)) == -1) { |
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ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
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TAILQ_REMOVE(&Sessions, sess, sess_node); |
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finiSession(sess); |
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return NULL; |
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} else if (!ret) { |
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ioDEBUG(4, "Session %s EOF received.", sess->sess_cid); |
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TAILQ_REMOVE(&Sessions, sess, sess_node); |
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finiSession(sess); |
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return NULL; |
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} |
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do { |
/* dispatch message type */ |
/* dispatch message type */ |
if (mqtt_srv_Dispatch(sess->sess_srv, sess)) | if ((len = mqtt_srv_cliDispatch(sess->sess_srv, ret, sess)) < 0) { |
ioLIBERR(mqtt); | if (len == -1) { |
switch (hdr->mqtt_msg.type) { | ioLIBERR(mqtt); |
case MQTT_TYPE_CONNECT: | |
schedEvent(root, startSession, NULL, (u_long) sess->sess_sock, sess, ret); | |
locKill ^= locKill; | |
break; | |
case MQTT_TYPE_DISCONNECT: | |
finiSession(sess); |
finiSession(sess); |
locKill ^= locKill; | } else if (len == -2) { |
continue; | TAILQ_REMOVE(&Sessions, sess, sess_node); |
case MQTT_TYPE_SUBSCRIBE: | finiSession(sess); |
case MQTT_TYPE_PINGREQ: | } else if (len == -3) |
break; | schedEvent(root, startSession, NULL, (u_long) TASK_FD(task), sess, ret); |
case MQTT_TYPE_PUBLISH: | } else |
ioDEBUG(5, "Exec PUBLISH topic QoS=%d", hdr->mqtt_msg.qos); | ret -= len; |
/* | } while (len > 0 && ret > 0); |
if (cmdPUBLISH(sess)) | |
locKill ^= locKill; | if (len >= 0 && !schedRead(root, dispatchSession, TASK_ARG(task), TASK_FD(task), NULL, 0)) { |
*/ | ioLIBERR(sched); |
break; | TAILQ_REMOVE(&Sessions, sess, sess_node); |
case MQTT_TYPE_PUBREL: | finiSession(sess); |
break; | } |
case MQTT_TYPE_UNSUBSCRIBE: | return NULL; |
break; | } |
default: | |
ioDEBUG(5, "Error:: Session %s, wrong command %d - DISCARDED", | static int |
sess->sess_cid, hdr->mqtt_msg.type); | loadSubscribes(struct tagSession * __restrict sess, mqtt_subscr_t * __restrict subs) |
break; | { |
| register int i; |
| struct tagStore *store; |
| |
| if (!subs) |
| return -1; |
| |
| for (i = 0; subs[i].sub_topic.msg_base; i++) { |
| store = io_malloc(sizeof(struct tagStore)); |
| if (!store) { |
| ioSYSERR(0); |
| continue; |
| } else { |
| store->st_msgid = 0; |
| mqtt_subCopy(&store->st_subscr, &subs[i]); |
} |
} |
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/* add to cache */ |
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SLIST_INSERT_HEAD(&sess->sess_subscr, store, st_node); |
} |
} |
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pthread_cleanup_pop(locKill); | return 0; |
pthread_exit(NULL); | |
return NULL; | |
} |
} |
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static void * | void * |
startSession(sched_task_t *task) |
startSession(sched_task_t *task) |
{ |
{ |
u_char basebuf[USHRT_MAX]; |
u_char basebuf[USHRT_MAX]; |
mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; | mqtt_msg_t buf = { basebuf, sizeof basebuf }; |
mqtthdr_connflgs_t flg; |
mqtthdr_connflgs_t flg; |
mqtthdr_connack_t cack; |
mqtthdr_connack_t cack; |
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ait_val_t *v; |
struct tagSession *s, *sess = NULL; |
struct tagSession *s, *sess = NULL; |
int ret; | int ret, wlen; |
| mqtt_subscr_t *subs; |
| struct timespec ts = { RETAIN_TIMEOUT, 0 }; |
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ioTRACE(4); |
ioTRACE(4); |
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assert(task); |
assert(task); |
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if (!TASK_DATA(task)) { |
if (!TASK_DATA(task)) { |
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v = TASK_ARG(task); |
/* flow from accept new clients */ |
/* flow from accept new clients */ |
sess = initSession(TASK_FD(task), TASK_ARG(task)); | sess = initSession(TASK_FD(task), v); |
io_freeVar(TASK_ARG(task)); | io_freeVar(&v); |
if (!sess) { |
if (!sess) { |
close(TASK_FD(task)); |
close(TASK_FD(task)); |
return NULL; |
return NULL; |
Line 233 startSession(sched_task_t *task)
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Line 245 startSession(sched_task_t *task)
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} |
} |
} else { |
} else { |
sess = TASK_DATA(task); |
sess = TASK_DATA(task); |
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assert(sess); |
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buf.msg_len = TASK_DATLEN(task) > sizeof basebuf ? sizeof basebuf : TASK_DATLEN(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); |
memcpy(buf.msg_base, sess->sess_buf->msg_base, buf.msg_len); |
} |
} |
Line 250 startSession(sched_task_t *task)
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Line 264 startSession(sched_task_t *task)
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sess->sess_will.qos = flg.will_qos; |
sess->sess_will.qos = flg.will_qos; |
sess->sess_will.retain = flg.will_retain; |
sess->sess_will.retain = flg.will_retain; |
sess->sess_will.flag = flg.will_flg; |
sess->sess_will.flag = flg.will_flg; |
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sess->sess_srv->timeout = sess->sess_ka; |
} |
} |
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/* check online table for user */ |
/* check online table for user */ |
Line 263 startSession(sched_task_t *task)
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Line 279 startSession(sched_task_t *task)
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ret = MQTT_RETCODE_ACCEPTED; |
ret = MQTT_RETCODE_ACCEPTED; |
} |
} |
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/* db management */ |
if (call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%") > 0) { |
if (call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%") > 0) { |
ioDEBUG(2, "Old session %s should be disconnect!", sess->sess_cid); |
ioDEBUG(2, "Old session %s should be disconnect!", sess->sess_cid); |
TAILQ_FOREACH(s, &Sessions, sess_node) |
TAILQ_FOREACH(s, &Sessions, sess_node) |
if (!strcmp(s->sess_cid, sess->sess_cid)) { |
if (!strcmp(s->sess_cid, sess->sess_cid)) { |
/* found stale session & disconnect it! */ |
/* found stale session & disconnect it! */ |
stopSession(s); | schedCancelby(root, taskMAX, CRITERIA_FD, (void*) s->sess_sock, NULL); |
| schedWrite(root, leaveClient, s, s->sess_sock, NULL, 0); |
break; |
break; |
} |
} |
} |
} |
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if (call.InitSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, sess->sess_addr, |
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.flag, sess->sess_will.topic, sess->sess_will.msg, |
sess->sess_will.qos, sess->sess_will.retain) == -1) { |
sess->sess_will.qos, sess->sess_will.retain) == -1) { |
Line 284 startSession(sched_task_t *task)
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Line 301 startSession(sched_task_t *task)
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sess->sess_cid, sess->sess_addr, sess->sess_user); |
sess->sess_cid, sess->sess_addr, sess->sess_user); |
ret = MQTT_RETCODE_ACCEPTED; |
ret = MQTT_RETCODE_ACCEPTED; |
} |
} |
| /* clean/load session if requested */ |
ret = mqtt_msgCONNACK(&msg, ret); | if (sess->sess_clean) { |
if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { | if (call.DeletePUB_subscribe) |
ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | call.DeletePUB_subscribe(&cfg, pub, sess->sess_cid, "%", sess->sess_user, "%"); |
finiSession(sess); | if (call.WipePUB_topic) |
return NULL; | call.WipePUB_topic(&cfg, pub, sess->sess_cid, sess->sess_user, -1); |
} else { | } else if (call.ReadPUB_subscribe) { |
ioDEBUG(5, "Sended %d bytes", ret); | /* load subscribes */ |
free(msg.msg_base); | subs = call.ReadPUB_subscribe(&cfg, pub, sess->sess_cid, "%"); |
memset(&msg, 0, sizeof msg); | loadSubscribes(sess, subs); |
| mqtt_subFree(&subs); |
} |
} |
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/* Start session thread OK ... */ | /* timer event for retain messages */ |
SESS_LOCK; | if (call.ReadPUB_topic) |
TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); | schedTimer(root, sendRetain, sess, ts, NULL, 0); |
pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess); | |
SESS_UNLOCK; | |
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/* Start session task OK ... */ |
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if (!schedRead(root, dispatchSession, sess, TASK_FD(task), NULL, 0)) { |
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ioLIBERR(sched); |
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ret = MQTT_RETCODE_DENIED; |
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} else |
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TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); |
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call.LOG(logg, "Session %s started from %s for user %s (timeout=%d) OK!\n", sess->sess_cid, |
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); |
sess->sess_addr, sess->sess_user, sess->sess_ka); |
return NULL; |
|
end: /* close client connection */ |
end: /* close client connection */ |
ret = mqtt_msgCONNACK(&msg, ret); | wlen = mqtt_msgCONNACK(sess->sess_buf, ret); |
if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { | if ((wlen = send(TASK_FD(task), sess->sess_buf->msg_base, wlen, 0)) == -1) { |
ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | ioDEBUG(3, "Error:: send(%ld) #%d - %s", (long) TASK_FD(task), errno, strerror(errno)); |
} else { | } else |
ioDEBUG(5, "Sended %d bytes", ret); | ioDEBUG(5, "Sended %d bytes", wlen); |
free(msg.msg_base); | |
memset(&msg, 0, sizeof msg); | |
} | |
|
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ioDEBUG(1, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock); | if (ret != MQTT_RETCODE_ACCEPTED) { |
finiSession(sess); | ioDEBUG(1, "Close client %s with socket=%ld", sess->sess_addr, (long) TASK_FD(task)); |
| finiSession(sess); |
| } |
return NULL; |
return NULL; |
} |
} |
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Line 335 acceptClient(sched_task_t *task)
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Line 356 acceptClient(sched_task_t *task)
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if ((cli = accept(TASK_FD(task), &sa.sa, &sslen)) == -1) |
if ((cli = accept(TASK_FD(task), &sa.sa, &sslen)) == -1) |
goto end; |
goto end; |
else |
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fcntl(cli, F_SETFL, fcntl(cli, F_GETFL, 0) | O_NONBLOCK); |
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v = io_allocVar(); |
v = io_allocVar(); |
if (!v) { |
if (!v) { |
Line 352 acceptClient(sched_task_t *task)
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Line 371 acceptClient(sched_task_t *task)
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ioDEBUG(1, "Connected client with socket=%d from %s", cli, AIT_GET_STR(v)); |
ioDEBUG(1, "Connected client with socket=%d from %s", cli, AIT_GET_STR(v)); |
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if (!schedRead(root, startSession, v, cli, NULL, 0)) { |
if (!schedRead(root, startSession, v, cli, NULL, 0)) { |
io_freeVar(v); | io_freeVar(&v); |
close(cli); |
close(cli); |
ioDEBUG(1, "Terminated client with socket=%d", cli); |
ioDEBUG(1, "Terminated client with socket=%d", cli); |
} |
} |
Line 367 end:
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Line 386 end:
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int |
int |
Run(int sock) |
Run(int sock) |
{ |
{ |
struct tagPub *pub; | struct tagSession *sess; |
struct timespec pl = { 0, 100000000 }; |
struct timespec pl = { 0, 100000000 }; |
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ioTRACE(1); |
ioTRACE(1); |
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if (listen(sock, SOMAXCONN) == -1) { | if (mqtt_srv_Listen(sock, 0, 1) == -1) { |
ioSYSERR(0); | ioLIBERR(mqtt); |
return -1; |
return -1; |
} else | } |
fcntl(sock, F_SETFL, fcntl(sock, F_GETFL, 0) | O_NONBLOCK); | |
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/* state machine - accept new connections */ |
/* state machine - accept new connections */ |
if (!schedRead(root, acceptClient, NULL, sock, NULL, 0)) { |
if (!schedRead(root, acceptClient, NULL, sock, NULL, 0)) { |
Line 384 Run(int sock)
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Line 402 Run(int sock)
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return -1; |
return -1; |
} |
} |
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pthread_attr_init(&attr); |
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
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schedPolling(root, &pl, NULL); |
schedPolling(root, &pl, NULL); |
schedRun(root, &Kill); |
schedRun(root, &Kill); |
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pthread_attr_destroy(&attr); |
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|
/* free all undeleted elements into lists */ |
/* free all undeleted elements into lists */ |
PUBS_LOCK; | TAILQ_FOREACH(sess, &Sessions, sess_node) { |
TAILQ_FOREACH(pub, &Pubs, pub_node) { | TAILQ_REMOVE(&Sessions, sess, sess_node); |
TAILQ_REMOVE(&Pubs, pub, pub_node); | |
|
|
AIT_FREE_VAL(&pub->pub_name); | finiSession(sess); |
if (pub->pub_packet.msg_base) | |
free(pub->pub_packet.msg_base); | |
} |
} |
PUBS_UNLOCK; |
|
return 0; |
return 0; |
} |
} |