version 1.1.2.28, 2011/12/16 13:34:41
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version 1.2.2.21, 2012/05/03 14:00:33
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Line 2
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Line 2
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#include "rtlm.h" |
#include "rtlm.h" |
#include "utils.h" |
#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 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 17 initSession(int sock, ait_val_t * __restrict v)
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Line 22 initSession(int sock, ait_val_t * __restrict v)
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sess = malloc(sizeof(struct tagSession)); |
sess = malloc(sizeof(struct tagSession)); |
if (!sess) { |
if (!sess) { |
ioDEBUG(3, "Error:: in malloc #%d - %s", errno, strerror(errno)); | ioSYSERR(0); |
io_freeVar(v); | |
return NULL; |
return NULL; |
} else |
} else |
memset(sess, 0, sizeof(struct tagSession)); |
memset(sess, 0, sizeof(struct tagSession)); |
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str = (const char*) cfg_GetAttribute(&cfg, CFG("mqttd"), CFG("retry")); | pthread_mutex_init(&sess->sess_mtx, NULL); |
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| SLIST_INIT(&sess->sess_subscr); |
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| str = cfg_getAttribute(&cfg, "mqttd", "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()); | ioLIBERR(mqtt); |
free(sess); |
free(sess); |
io_freeVar(v); |
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return NULL; |
return NULL; |
} |
} |
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/* init server actor */ |
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sess->sess_srv = mqtt_srv_Init(sock, sess->sess_buf); |
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if (!sess->sess_srv) { |
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ioDEBUG(3, "Error:: in srv_Init #%d - %s", mqtt_GetErrno(), mqtt_GetError()); |
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mqtt_msgFree(&sess->sess_buf, 42); |
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free(sess); |
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return NULL; |
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} else { |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_CONNECT, cmdCONNECT); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PUBLISH, cmdPUBLISH); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PUBREL, cmdPUBREL); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_SUBSCRIBE, cmdSUBSCRIBE); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_UNSUBSCRIBE, cmdUNSUBSCRIBE); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_PINGREQ, cmdPINGREQ); |
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mqtt_srv_setCmd(sess->sess_srv, MQTT_TYPE_DISCONNECT, cmdDISCONNECT); |
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} |
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sess->sess_sock = sock; |
sess->sess_sock = sock; |
strlcpy(sess->sess_addr, (char*) AIT_GET_STR(v), sizeof sess->sess_addr); |
strlcpy(sess->sess_addr, (char*) AIT_GET_STR(v), sizeof sess->sess_addr); |
io_freeVar(v); |
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return sess; |
return sess; |
} |
} |
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static void |
static void |
finiSession(struct tagSession *sess) |
finiSession(struct tagSession *sess) |
{ |
{ |
register int i; |
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struct tagStore *store; |
struct tagStore *store; |
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ioTRACE(5); |
ioTRACE(5); |
Line 54 finiSession(struct tagSession *sess)
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Line 76 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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SESS_ELEM_LOCK(sess); |
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while ((store = SLIST_FIRST(&sess->sess_subscr))) { |
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SLIST_REMOVE_HEAD(&sess->sess_subscr, st_node); |
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if (store->st_subscr.sub_topic.msg_base) |
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free(store->st_subscr.sub_topic.msg_base); |
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if (store->st_subscr.sub_value.msg_base) |
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free(store->st_subscr.sub_value.msg_base); |
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free(store); |
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} |
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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.msg) |
free(sess->sess_will.msg); |
free(sess->sess_will.msg); |
if (sess->sess_will.topic) |
if (sess->sess_will.topic) |
Line 68 finiSession(struct tagSession *sess)
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Line 101 finiSession(struct tagSession *sess)
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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_msgFree(&sess->sess_buf, 42); |
mqtt_msgFree(&sess->sess_buf, 42); |
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free(sess); |
free(sess); |
Line 83 stopSession(struct tagSession *sess)
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Line 117 stopSession(struct tagSession *sess)
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assert(sess); |
assert(sess); |
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pthread_mutex_lock(&mtx_sess); | SESS_LOCK; |
TAILQ_REMOVE(&Sessions, sess, sess_node); |
TAILQ_REMOVE(&Sessions, sess, sess_node); |
pthread_mutex_unlock(&mtx_sess); | SESS_UNLOCK; |
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ret = mqtt_msgDISCONNECT(&msg); |
ret = mqtt_msgDISCONNECT(&msg); |
if ((ret = send(sess->sess_sock, msg.msg_base, ret, 0)) == -1) | send(sess->sess_sock, msg.msg_base, ret, MSG_NOSIGNAL); |
ioDEBUG(3, "Error:: send(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | free(msg.msg_base); |
else { | |
ioDEBUG(5, "Sended %d bytes for disconnect", ret); | |
free(msg.msg_base); | |
memset(&msg, 0, sizeof msg); | |
} | |
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ioDEBUG(1, "Close socket=%d", sess->sess_sock); |
ioDEBUG(1, "Close socket=%d", sess->sess_sock); |
finiSession(sess); |
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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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static int | finiSession(sess); |
KASession(struct tagSession *sess) | |
{ | |
u_char basebuf[USHRT_MAX]; | |
mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; | |
int ret; | |
struct pollfd pfd; | |
| |
ioTRACE(4); | |
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assert(sess); | |
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/* 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); | |
} | |
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pfd.fd = sess->sess_sock; | |
pfd.events = POLLIN | POLLPRI; | |
if ((ret = poll(&pfd, 1, sess->sess_ka)) == -1 || | |
pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { | |
ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); | |
return -1; | |
} else if (!ret) { | |
/* problem!!! session is abandoned ... must be disconnect! */ | |
return 1; | |
} | |
/* 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)); | |
return -1; | |
} | |
if (mqtt_readPINGRESP(&buf)) { | |
/* problem!!! session is broken, not hear ping response ... must be disconnect! */ | |
return 2; | |
} | |
| |
/* Keep Alive is OK! */ | |
return 0; | |
} |
} |
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static void * |
static void * |
thrSession(struct tagSession *sess) |
thrSession(struct tagSession *sess) |
{ |
{ |
u_char basebuf[USHRT_MAX]; | int ret, locKill = 42; |
mqtt_msg_t msg = { NULL, 0 }, buf = { basebuf, sizeof basebuf }; | |
int ret; | |
struct pollfd pfd; |
struct pollfd pfd; |
struct mqtthdr *hdr; |
struct mqtthdr *hdr; |
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Line 164 thrSession(struct tagSession *sess)
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Line 144 thrSession(struct tagSession *sess)
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pfd.fd = sess->sess_sock; |
pfd.fd = sess->sess_sock; |
pfd.events = POLLIN | POLLPRI; |
pfd.events = POLLIN | POLLPRI; |
while (!Kill) { | while (!Kill && locKill) { |
if ((ret = poll(&pfd, 1, sess->sess_ka)) == -1 || | if ((ret = poll(&pfd, 1, sess->sess_ka * 1000)) == -1 || |
pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { |
ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
ioDEBUG(3, "Error:: poll(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
break; |
break; |
} else if (!ret && (ret = KASession(sess))) { | } 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", |
call.LOG(logg, "Session %s keep-alive missing from %s for user %s ...\n", |
sess->sess_cid, sess->sess_addr, sess->sess_user); |
sess->sess_cid, sess->sess_addr, sess->sess_user); |
break; |
break; |
} |
} |
/* receive & decode packet */ |
/* receive & decode packet */ |
if ((ret = recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0)) == -1) { | 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)); |
ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
break; |
break; |
} else if (!ret) { |
} else if (!ret) { |
ioDEBUG(4, "Session %s EOF received.", sess->sess_cid); |
ioDEBUG(4, "Session %s EOF received.", sess->sess_cid); |
break; |
break; |
} else |
} else |
hdr = (struct mqtthdr*) buf.msg_base; | hdr = (struct mqtthdr*) sess->sess_buf->msg_base; |
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/* dispatch message type */ |
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if (mqtt_srv_Dispatch(sess->sess_srv, sess)) |
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ioLIBERR(mqtt); |
switch (hdr->mqtt_msg.type) { |
switch (hdr->mqtt_msg.type) { |
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case MQTT_TYPE_CONNECT: |
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schedEvent(root, startSession, NULL, (u_long) sess->sess_sock, sess, ret); |
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locKill ^= locKill; |
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break; |
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case MQTT_TYPE_DISCONNECT: |
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finiSession(sess); |
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locKill ^= locKill; |
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continue; |
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case MQTT_TYPE_SUBSCRIBE: |
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case MQTT_TYPE_PINGREQ: |
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break; |
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case MQTT_TYPE_PUBLISH: |
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ioDEBUG(5, "Exec PUBLISH topic QoS=%d", hdr->mqtt_msg.qos); |
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/* |
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if (cmdPUBLISH(sess)) |
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locKill ^= locKill; |
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*/ |
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break; |
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case MQTT_TYPE_PUBREL: |
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break; |
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case MQTT_TYPE_UNSUBSCRIBE: |
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break; |
default: |
default: |
ioDEBUG(5, "Error:: Session %s, wrong command %d - DISCARDED", |
ioDEBUG(5, "Error:: Session %s, wrong command %d - DISCARDED", |
sess->sess_cid, hdr->mqtt_msg.type); |
sess->sess_cid, hdr->mqtt_msg.type); |
Line 192 thrSession(struct tagSession *sess)
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Line 197 thrSession(struct tagSession *sess)
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} |
} |
} |
} |
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pthread_cleanup_pop(42); | pthread_cleanup_pop(locKill); |
pthread_exit(NULL); |
pthread_exit(NULL); |
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return NULL; |
} |
} |
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static void * |
static void * |
Line 205 startSession(sched_task_t *task)
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Line 211 startSession(sched_task_t *task)
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mqtthdr_connack_t cack; |
mqtthdr_connack_t cack; |
struct tagSession *s, *sess = NULL; |
struct tagSession *s, *sess = NULL; |
int ret; |
int ret; |
pthread_attr_t attr; |
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ioTRACE(4); |
ioTRACE(4); |
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assert(task); |
assert(task); |
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sess = initSession(TASK_FD(task), TASK_ARG(task)); | if (!TASK_DATA(task)) { |
if (!sess) { | /* flow from accept new clients */ |
| sess = initSession(TASK_FD(task), TASK_ARG(task)); |
io_freeVar(TASK_ARG(task)); |
io_freeVar(TASK_ARG(task)); |
close(TASK_FD(task)); | if (!sess) { |
return NULL; | close(TASK_FD(task)); |
} | return NULL; |
| } |
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/* receive & decode packet */ | /* receive & decode packet */ |
if (recv(sess->sess_sock, buf.msg_base, buf.msg_len, 0) == -1) { | 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)); | ioDEBUG(3, "Error:: recv(%d) #%d - %s", sess->sess_sock, errno, strerror(errno)); |
finiSession(sess); | finiSession(sess); |
return NULL; | 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 249 startSession(sched_task_t *task)
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Line 262 startSession(sched_task_t *task)
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ioDEBUG(1, "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; |
} |
} |
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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) |
Line 258 startSession(sched_task_t *task)
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Line 272 startSession(sched_task_t *task)
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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 282 startSession(sched_task_t *task)
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Line 297 startSession(sched_task_t *task)
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} |
} |
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/* Start session thread OK ... */ |
/* Start session thread OK ... */ |
pthread_attr_init(&attr); | SESS_LOCK; |
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); | |
| |
pthread_mutex_lock(&mtx_sess); | |
TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); |
TAILQ_INSERT_TAIL(&Sessions, sess, sess_node); |
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); | SESS_UNLOCK; |
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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); |
| |
pthread_attr_destroy(&attr); | |
return NULL; |
return NULL; |
end: /* close client connection */ |
end: /* close client connection */ |
ret = mqtt_msgCONNACK(&msg, ret); |
ret = mqtt_msgCONNACK(&msg, ret); |
Line 310 end: /* close client connection */
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Line 320 end: /* close client connection */
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return NULL; |
return NULL; |
} |
} |
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/* ----------------------------------------------------------------------- */ |
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static void * |
static void * |
thrSched(void *arg __unused) | acceptClient(sched_task_t *task) |
{ |
{ |
struct tagSession *sess; | int cli; |
| io_sockaddr_t sa; |
| socklen_t sslen = sizeof sa.ss; |
| ait_val_t *v; |
| char str[STRSIZ]; |
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ioTRACE(1); | ioTRACE(4); |
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schedRun(root, &Kill); | assert(task); |
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TAILQ_FOREACH(sess, &Sessions, sess_node) | if ((cli = accept(TASK_FD(task), &sa.sa, &sslen)) == -1) |
if (sess->sess_tid) | goto end; |
pthread_cancel(sess->sess_tid); | else |
pthread_exit(NULL); | fcntl(cli, F_SETFL, fcntl(cli, F_GETFL, 0) | O_NONBLOCK); |
| |
| v = io_allocVar(); |
| if (!v) { |
| ioLIBERR(io); |
| close(cli); |
| goto end; |
| } else { |
| memset(str, 0, sizeof str); |
| snprintf(str, sizeof str, "%s:%hu", io_n2addr(&sa, v), io_n2port(&sa)); |
| AIT_FREE_VAL(v); |
| AIT_SET_STR(v, str); |
| } |
| ioDEBUG(1, "Connected client with socket=%d from %s", cli, AIT_GET_STR(v)); |
| |
| if (!schedRead(root, startSession, v, cli, NULL, 0)) { |
| io_freeVar(v); |
| close(cli); |
| ioDEBUG(1, "Terminated client with socket=%d", cli); |
| } |
| end: |
| if (!schedRead(TASK_ROOT(task), acceptClient, NULL, TASK_FD(task), NULL, 0)) |
| ioLIBERR(sched); |
| return NULL; |
} |
} |
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/* ----------------------------------------------------------------------- */ |
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int |
int |
Run(int sock) |
Run(int sock) |
{ |
{ |
io_sockaddr_t sa; | struct tagPub *pub; |
socklen_t sslen = sizeof sa.ss; | struct timespec pl = { 0, 100000000 }; |
int cli; | |
pthread_t tid; | |
ait_val_t *v; | |
char str[STRSIZ]; | |
|
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ioTRACE(1); |
ioTRACE(1); |
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if (pthread_create(&tid, NULL, thrSched, NULL)) { | if (listen(sock, SOMAXCONN) == -1) { |
ioLOGERR(0); | ioSYSERR(0); |
return -1; |
return -1; |
} else |
} else |
pthread_detach(tid); | fcntl(sock, F_SETFL, fcntl(sock, F_GETFL, 0) | O_NONBLOCK); |
ioDEBUG(2, "Run scheduler management thread"); | |
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if (listen(sock, SOMAXCONN) == -1) { | /* state machine - accept new connections */ |
ioLOGERR(0); | if (!schedRead(root, acceptClient, NULL, sock, NULL, 0)) { |
| ioLIBERR(sched); |
return -1; |
return -1; |
} |
} |
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while (!Kill) { | pthread_attr_init(&attr); |
if ((cli = accept(sock, &sa.sa, &sslen)) == -1) { | pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
if (!Kill) | |
continue; | |
ioLOGERR(0); | |
break; | |
} | |
v = io_allocVar(); | |
if (!v) { | |
ioLIBERR(mqtt); | |
break; | |
} else { | |
memset(str, 0, sizeof str); | |
snprintf(str, sizeof str, "%s:%hu", io_n2addr(&sa, v), io_n2port(&sa)); | |
AIT_SET_STR(v, str); | |
} | |
ioDEBUG(1, "Connected client with socket=%d from %s", cli, AIT_GET_STR(v)); | |
|
|
if (!schedRead(root, startSession, v, cli)) { | schedPolling(root, &pl, NULL); |
io_freeVar(v); | schedRun(root, &Kill); |
close(cli); | |
ioDEBUG(1, "Terminated client with socket=%d", cli); | |
} | |
} | |
|
|
|
pthread_attr_destroy(&attr); |
|
|
|
/* free all undeleted elements into lists */ |
|
PUBS_LOCK; |
|
TAILQ_FOREACH(pub, &Pubs, pub_node) { |
|
TAILQ_REMOVE(&Pubs, pub, pub_node); |
|
|
|
AIT_FREE_VAL(&pub->pub_name); |
|
if (pub->pub_packet.msg_base) |
|
free(pub->pub_packet.msg_base); |
|
} |
|
PUBS_UNLOCK; |
return 0; |
return 0; |
} |
} |