version 1.1.2.23, 2011/12/16 02:09:20
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version 1.1.2.32, 2012/01/25 10:34:14
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Line 1
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#include "global.h" |
#include "global.h" |
#include "rtlm.h" |
#include "rtlm.h" |
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#include "utils.h" |
#include "mqttd.h" |
#include "mqttd.h" |
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#include "mqttd_calls.h" |
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static void *startSession(sched_task_t *task); |
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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 22 initSession(int sock, ait_val_t * __restrict v)
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Line 27 initSession(int sock, ait_val_t * __restrict v)
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} else |
} else |
memset(sess, 0, sizeof(struct tagSession)); |
memset(sess, 0, sizeof(struct tagSession)); |
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TAILQ_INIT(&sess->sess_sndqueue); |
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str = (const char*) cfg_GetAttribute(&cfg, CFG("mqttd"), CFG("retry")); |
str = (const char*) cfg_GetAttribute(&cfg, CFG("mqttd"), CFG("retry")); |
if (!str) |
if (!str) |
sess->sess_retry = DEFAULT_RETRY; |
sess->sess_retry = DEFAULT_RETRY; |
else |
else |
sess->sess_retry = strtol(str, NULL, 0); |
sess->sess_retry = strtol(str, NULL, 0); |
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sess->sess_buf = mqtt_msgAlloc(0); | sess->sess_buf = mqtt_msgAlloc(USHRT_MAX); |
if (!sess->sess_buf) { |
if (!sess->sess_buf) { |
ioDEBUG(3, "Error:: in msgAlloc #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
ioDEBUG(3, "Error:: in msgAlloc #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
free(sess); |
free(sess); |
Line 43 initSession(int sock, ait_val_t * __restrict v)
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Line 50 initSession(int sock, ait_val_t * __restrict v)
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} |
} |
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static void |
static void |
finiSession(struct tagSession *sess) | finiSession(struct tagSession *sess, int preservSock) |
{ |
{ |
register int i; |
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struct tagStore *store; |
struct tagStore *store; |
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ioTRACE(5); |
ioTRACE(5); |
Line 53 finiSession(struct tagSession *sess)
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Line 59 finiSession(struct tagSession *sess)
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if (!sess) |
if (!sess) |
return; |
return; |
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for (i = 0; i < MQTT_QOS_RESERVED; i++) | if (call.FiniSessPUB) |
while ((store = SLIST_FIRST(&sess->sess_store[i]))) { | call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%"); |
SLIST_REMOVE_HEAD(&sess->sess_store[i], st_node); | |
free(store); | |
} | |
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while ((store = TAILQ_FIRST(&sess->sess_sndqueue))) { |
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TAILQ_REMOVE(&sess->sess_sndqueue, store, st_node); |
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if (store->st_subscr.sub_topic._base) |
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free(store->st_subscr.sub_topic._base); |
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if (store->st_subscr.sub_value._base) |
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free(store->st_subscr.sub_value._base); |
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free(store); |
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} |
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if (sess->sess_will.msg) |
if (sess->sess_will.msg) |
free(sess->sess_will.msg); |
free(sess->sess_will.msg); |
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_sock > STDERR_FILENO) { | if (sess->sess_sock > STDERR_FILENO && !preservSock) |
shutdown(sess->sess_sock, SHUT_RDWR); | srv_Close(sess->sess_sock); |
close(sess->sess_sock); | |
} | |
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mqtt_msgFree(&sess->sess_buf, 42); |
mqtt_msgFree(&sess->sess_buf, 42); |
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free(sess); |
free(sess); |
} |
} |
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static void * | static void |
thrSession(struct tagSession *sess) | stopSession(struct tagSession *sess) |
{ |
{ |
void thrClean(struct tagSession *sess) | mqtt_msg_t msg = { NULL, 0 }; |
{ | int ret; |
pthread_mutex_lock(&mtx_sess); | |
TAILQ_REMOVE(&Sessions, sess, sess_node); | ioTRACE(4); |
pthread_mutex_unlock(&mtx_sess); | |
ioDEBUG(1, "Close socket=%d", sess->sess_sock); | assert(sess); |
finiSession(sess); | |
| pthread_mutex_lock(&mtx_sess); |
| TAILQ_REMOVE(&Sessions, sess, sess_node); |
| pthread_mutex_unlock(&mtx_sess); |
| |
| 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); |
} |
} |
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pthread_cleanup_push((void(*)(void*)) thrClean, sess); | ioDEBUG(1, "Close socket=%d", sess->sess_sock); |
| finiSession(sess, 0); |
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call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
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sess->sess_addr, sess->sess_user); |
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} |
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static int |
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KASession(struct tagSession *sess) |
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{ |
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mqtt_msg_t msg = { NULL, 0 }; |
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int ret; |
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struct pollfd pfd; |
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ioTRACE(4); |
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assert(sess); |
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/* ping request */ |
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ret = mqtt_msgPINGREQ(&msg); |
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if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { |
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ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
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return -1; |
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} else { |
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ioDEBUG(5, "Sended %d bytes for ping request", ret); |
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free(msg.msg_base); |
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memset(&msg, 0, sizeof msg); |
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} |
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pfd.fd = sess->sess_sock; |
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pfd.events = POLLIN | POLLPRI; |
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if ((ret = poll(&pfd, 1, sess->sess_ka * 1000)) == -1 || |
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pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
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ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
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return -1; |
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} else if (!ret) { |
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ioDEBUG(5, "Warning:: Session is abandoned ... must be disconnect!"); |
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return 1; |
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} |
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/* receive & decode packet */ |
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if (recv(sess->sess_sock, 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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return -1; |
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} |
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if (mqtt_readPINGRESP(sess->sess_buf)) { |
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ioDEBUG(5, "Warning:: Session is broken, not hear ping response ... must be disconnect!"); |
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return 2; |
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} |
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/* Keep Alive is OK! */ |
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return 0; |
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} |
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static void * |
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thrSession(struct tagSession *sess) |
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{ |
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mqtt_msg_t msg = { NULL, 0 }; |
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int ret, locKill = 42; |
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struct pollfd pfd; |
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struct mqtthdr *hdr; |
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ait_val_t *v; |
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struct tagStore *store; |
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pthread_cleanup_push((void(*)(void*)) stopSession, sess); |
ioTRACE(2); |
ioTRACE(2); |
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pthread_cleanup_pop(42); | 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; |
| } 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 */ |
| switch (hdr->mqtt_msg.type) { |
| case MQTT_TYPE_CONNECT: |
| ioDEBUG(5, "Exec CONNECT session"); |
| pthread_mutex_lock(&mtx_sess); |
| TAILQ_REMOVE(&Sessions, sess, sess_node); |
| pthread_mutex_unlock(&mtx_sess); |
| |
| if (call.FiniSessPUB) |
| call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%"); |
| |
| while ((store = TAILQ_FIRST(&sess->sess_sndqueue))) { |
| TAILQ_REMOVE(&sess->sess_sndqueue, store, st_node); |
| |
| if (store->st_subscr.sub_topic._base) |
| free(store->st_subscr.sub_topic._base); |
| if (store->st_subscr.sub_value._base) |
| free(store->st_subscr.sub_value._base); |
| |
| free(store); |
| } |
| |
| if (sess->sess_will.msg) |
| free(sess->sess_will.msg); |
| if (sess->sess_will.topic) |
| free(sess->sess_will.topic); |
| |
| 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; |
| |
| call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
| sess->sess_addr, sess->sess_user); |
| continue; |
| case MQTT_TYPE_DISCONNECT: |
| ioDEBUG(5, "Exec DISCONNECT session"); |
| pthread_mutex_lock(&mtx_sess); |
| TAILQ_REMOVE(&Sessions, sess, sess_node); |
| pthread_mutex_unlock(&mtx_sess); |
| |
| finiSession(sess, 0); |
| locKill ^= locKill; |
| |
| call.LOG(logg, "Session %s stopped from %s for user %s.\n", sess->sess_cid, |
| sess->sess_addr, sess->sess_user); |
| continue; |
| case MQTT_TYPE_PUBLISH: |
| ioDEBUG(5, "Exec PUBLISH topic QoS=%d", hdr->mqtt_msg.qos); |
| if (Publish(sess)) |
| locKill ^= locKill; |
| break; |
| case MQTT_TYPE_PUBREL: |
| break; |
| case MQTT_TYPE_SUBSCRIBE: |
| break; |
| case MQTT_TYPE_UNSUBSCRIBE: |
| break; |
| case MQTT_TYPE_PINGREQ: |
| 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); |
pthread_exit(NULL); |
} |
} |
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Line 101 startSession(sched_task_t *task)
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Line 279 startSession(sched_task_t *task)
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mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; |
mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; |
mqtthdr_connflgs_t flg; |
mqtthdr_connflgs_t flg; |
mqtthdr_connack_t cack; |
mqtthdr_connack_t cack; |
struct tagSession *sess = NULL; | struct tagSession *s, *sess = NULL; |
int ret; |
int ret; |
pthread_attr_t attr; |
pthread_attr_t attr; |
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ioTRACE(4); |
ioTRACE(4); |
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sess = initSession(TASK_FD(task), TASK_ARG(task)); | assert(task); |
if (!sess) { | |
io_freeVar(TASK_ARG(task)); | |
close(TASK_FD(task)); | |
return NULL; | |
} | |
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/* receive & decode packet */ | if (!TASK_DATA(task)) { |
if (recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0) == -1) { | sess = initSession(TASK_FD(task), TASK_ARG(task)); |
ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | if (!sess) { |
finiSession(sess); | io_freeVar(TASK_ARG(task)); |
return NULL; | close(TASK_FD(task)); |
| 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); |
} |
} |
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cack = mqtt_readCONNECT(&buf, &sess->sess_ka, sess->sess_cid, sizeof sess->sess_cid, |
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_user, sizeof sess->sess_user, sess->sess_pass, sizeof sess->sess_pass, |
&sess->sess_will.topic, &sess->sess_will.msg); |
&sess->sess_will.topic, &sess->sess_will.msg); |
Line 142 startSession(sched_task_t *task)
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Line 329 startSession(sched_task_t *task)
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ret = MQTT_RETCODE_DENIED; |
ret = MQTT_RETCODE_DENIED; |
goto end; |
goto end; |
} else { |
} else { |
ioDEBUG(0, "Login:: ALLOWED for username %s ...", sess->sess_user); | ioDEBUG(1, "Login:: ALLOWED for username %s ...", sess->sess_user); |
ret = MQTT_RETCODE_ACCEPTED; |
ret = MQTT_RETCODE_ACCEPTED; |
} |
} |
if (call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%") > 0) { |
if (call.FiniSessPUB(&cfg, pub, sess->sess_cid, sess->sess_user, "%") > 0) { |
// TODO: disconnect client | 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, |
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, |
Line 163 startSession(sched_task_t *task)
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Line 356 startSession(sched_task_t *task)
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ret = mqtt_msgCONNACK(&msg, ret); |
ret = mqtt_msgCONNACK(&msg, ret); |
if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) { |
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)); |
ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
finiSession(sess); | finiSession(sess, 0); |
return NULL; |
return NULL; |
} else { |
} else { |
ioDEBUG(5, "Sended %d bytes", ret); |
ioDEBUG(5, "Sended %d bytes", ret); |
free(msg.msg_base); |
free(msg.msg_base); |
msg.msg_len = 0; | memset(&msg, 0, sizeof msg); |
} |
} |
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/* Start session thread OK ... */ |
/* Start session thread OK ... */ |
Line 180 startSession(sched_task_t *task)
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Line 373 startSession(sched_task_t *task)
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pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess); |
pthread_create(&sess->sess_tid, &attr, (void*(*)(void*)) thrSession, sess); |
pthread_mutex_unlock(&mtx_sess); |
pthread_mutex_unlock(&mtx_sess); |
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call.LOG(logg, "Session %s started from %s for user %s 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_addr, sess->sess_user, sess->sess_ka); |
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pthread_attr_destroy(&attr); |
pthread_attr_destroy(&attr); |
return NULL; |
return NULL; |
Line 192 end: /* close client connection */
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Line 385 end: /* close client connection */
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} else { |
} else { |
ioDEBUG(5, "Sended %d bytes", ret); |
ioDEBUG(5, "Sended %d bytes", ret); |
free(msg.msg_base); |
free(msg.msg_base); |
msg.msg_len = 0; | memset(&msg, 0, sizeof msg); |
} |
} |
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ioDEBUG(1, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock); |
ioDEBUG(1, "Close client %s with socket=%d", sess->sess_addr, sess->sess_sock); |
finiSession(sess); | finiSession(sess, 0); |
return NULL; |
return NULL; |
} |
} |
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Line 206 static void *
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Line 399 static void *
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thrSched(void *arg __unused) |
thrSched(void *arg __unused) |
{ |
{ |
struct tagSession *sess; |
struct tagSession *sess; |
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struct timespec pl = { 0, 10000000 }; |
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ioTRACE(1); |
ioTRACE(1); |
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schedPolling(root, &pl, NULL); |
schedRun(root, &Kill); |
schedRun(root, &Kill); |
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TAILQ_FOREACH(sess, &Sessions, sess_node) |
TAILQ_FOREACH(sess, &Sessions, sess_node) |
if (sess->sess_tid) |
if (sess->sess_tid) |
pthread_cancel(sess->sess_tid); |
pthread_cancel(sess->sess_tid); |
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ioDEBUG(5, "EXIT from Scheduler thread !!!"); |
pthread_exit(NULL); |
pthread_exit(NULL); |
} |
} |
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Line 230 Run(int sock)
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Line 426 Run(int sock)
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ioTRACE(1); |
ioTRACE(1); |
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if (pthread_create(&tid, NULL, thrSched, NULL)) { |
if (pthread_create(&tid, NULL, thrSched, NULL)) { |
ioLOGERR(0); | ioSYSERR(0); |
return -1; |
return -1; |
} else |
} else |
pthread_detach(tid); |
pthread_detach(tid); |
ioDEBUG(2, "Run scheduler management thread"); |
ioDEBUG(2, "Run scheduler management thread"); |
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if (listen(sock, 5 /*SOMAXCONN*/) == -1) { | if (listen(sock, SOMAXCONN) == -1) { |
ioLOGERR(0); | ioSYSERR(0); |
return -1; |
return -1; |
} |
} |
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Line 245 Run(int sock)
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Line 441 Run(int sock)
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if ((cli = accept(sock, &sa.sa, &sslen)) == -1) { |
if ((cli = accept(sock, &sa.sa, &sslen)) == -1) { |
if (!Kill) |
if (!Kill) |
continue; |
continue; |
ioLOGERR(0); | ioSYSERR(0); |
break; |
break; |
} |
} |
v = io_allocVar(); |
v = io_allocVar(); |
Line 259 Run(int sock)
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Line 455 Run(int sock)
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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)) { | 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); |