static void process_listener(zbx_sock_t *s)
{
AGENT_RESULT result;
char *command;
char **value = NULL;
int ret;
if (SUCCEED == (ret = zbx_tcp_recv_to(s, &command, CONFIG_TIMEOUT)))
{
zbx_rtrim(command, "\r\n");
zabbix_log(LOG_LEVEL_DEBUG, "Requested [%s]", command);
init_result(&result);
process(command, 0, &result);
if (NULL == (value = GET_TEXT_RESULT(&result)))
value = GET_MSG_RESULT(&result);
if (NULL != value)
{
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [%s]", *value);
ret = zbx_tcp_send_to(s, *value, CONFIG_TIMEOUT);
}
free_result(&result);
}
if (FAIL == ret)
zabbix_log(LOG_LEVEL_DEBUG, "Process listener error: %s", zbx_tcp_strerror());
}
static void process_listener(zbx_socket_t *s)
{
AGENT_RESULT result;
char **value = NULL;
int ret;
if (SUCCEED == (ret = zbx_tcp_recv_to(s, CONFIG_TIMEOUT)))
{
zbx_rtrim(s->buffer, "\r\n");
zabbix_log(LOG_LEVEL_DEBUG, "Requested [%s]", s->buffer);
init_result(&result);
if (SUCCEED == process(s->buffer, PROCESS_WITH_ALIAS, &result))
{
if (NULL != (value = GET_TEXT_RESULT(&result)))
{
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [%s]", *value);
ret = zbx_tcp_send_to(s, *value, CONFIG_TIMEOUT);
}
}
else
{
value = GET_MSG_RESULT(&result);
if (NULL != value)
{
static char *buffer = NULL;
static size_t buffer_alloc = 256;
size_t buffer_offset = 0;
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [" ZBX_NOTSUPPORTED ": %s]", *value);
if (NULL == buffer)
buffer = (char *)zbx_malloc(buffer, buffer_alloc);
zbx_strncpy_alloc(&buffer, &buffer_alloc, &buffer_offset,
ZBX_NOTSUPPORTED, ZBX_CONST_STRLEN(ZBX_NOTSUPPORTED));
buffer_offset++;
zbx_strcpy_alloc(&buffer, &buffer_alloc, &buffer_offset, *value);
ret = zbx_tcp_send_bytes_to(s, buffer, buffer_offset, CONFIG_TIMEOUT);
}
else
{
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [" ZBX_NOTSUPPORTED "]");
ret = zbx_tcp_send_to(s, ZBX_NOTSUPPORTED, CONFIG_TIMEOUT);
}
}
free_result(&result);
}
if (FAIL == ret)
zabbix_log(LOG_LEVEL_DEBUG, "Process listener error: %s", zbx_socket_strerror());
}
/******************************************************************************
* *
* Function: proxy_add_history *
* *
* Purpose: add new value to history *
* *
* Parameters: item - item data *
* value - new value of the item *
* now - new value of the item *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static void proxy_add_history(DB_ITEM *item, AGENT_RESULT *value, int now)
{
if (value->type & AR_UINT64)
zabbix_log(LOG_LEVEL_DEBUG, "In proxy_add_history(itemid:" ZBX_FS_UI64 ",key:\"%s\",value_type:%d,UINT64:"ZBX_FS_UI64")",
item->itemid,
item->key,
item->value_type,
value->ui64);
if (value->type & AR_STRING)
zabbix_log(LOG_LEVEL_DEBUG, "In proxy_add_history(itemid:" ZBX_FS_UI64 ",key:\"%s\",value_type:%d,STRING:%s)",
item->itemid,
item->key,
item->value_type,
value->str);
if (value->type & AR_DOUBLE)
zabbix_log(LOG_LEVEL_DEBUG, "In proxy_add_history(itemid:" ZBX_FS_UI64 ",key:\"%s\",value_type:%d,DOUBLE:"ZBX_FS_DBL")",
item->itemid,
item->key,
item->value_type,
value->dbl);
if (value->type & AR_TEXT)
zabbix_log(LOG_LEVEL_DEBUG, "In proxy_add_history(itemid: "ZBX_FS_UI64 ",key:\"%s\",value_type:%d,TEXT:[%s])",
item->itemid,
item->key,
item->value_type,
value->text);
switch (item->value_type) {
case ITEM_VALUE_TYPE_FLOAT:
if (GET_DBL_RESULT(value))
DBproxy_add_history(item->itemid, value->dbl, now);
break;
case ITEM_VALUE_TYPE_STR:
if (GET_STR_RESULT(value))
DBproxy_add_history_str(item->itemid, value->str, now);
break;
case ITEM_VALUE_TYPE_LOG:
if (GET_STR_RESULT(value))
DBproxy_add_history_log(item->itemid, value->str, now, item->timestamp, item->eventlog_source,
item->eventlog_severity, item->lastlogsize);
break;
case ITEM_VALUE_TYPE_UINT64:
if (GET_UI64_RESULT(value))
DBproxy_add_history_uint(item->itemid, value->ui64, now);
break;
case ITEM_VALUE_TYPE_TEXT:
if (GET_TEXT_RESULT(value))
DBproxy_add_history_text(item->itemid, value->str, now);
break;
default:
zabbix_log(LOG_LEVEL_ERR, "Unknown value type [%d] for itemid [" ZBX_FS_UI64 "]",
item->value_type,
item->itemid);
}
zabbix_log( LOG_LEVEL_DEBUG, "End of proxy_add_history");
}
static void process_active_checks(char *server, unsigned short port)
{
register int i, s_count, p_count;
char **pvalue;
int now, send_err = SUCCEED, ret;
unsigned long timestamp;
char *source = NULL;
char *value = NULL;
unsigned short severity;
long lastlogsize;
char params[MAX_STRING_LEN];
char filename[MAX_STRING_LEN];
char pattern[MAX_STRING_LEN];
AGENT_RESULT result;
zabbix_log( LOG_LEVEL_DEBUG, "In process_active_checks('%s',%u)",server, port);
init_result(&result);
now = (int)time(NULL);
for(i=0; NULL != active_metrics[i].key && SUCCEED == send_err; i++)
{
if(active_metrics[i].nextcheck > now) continue;
if(active_metrics[i].status != ITEM_STATUS_ACTIVE) continue;
/* Special processing for log files */
if(strncmp(active_metrics[i].key,"log[",4) == 0)
{
do{ /* simple try realization */
if (parse_command(active_metrics[i].key, NULL, 0, params, MAX_STRING_LEN) != 2)
break;
if (num_param(params) > 2)
break;
if (get_param(params, 1, filename, sizeof(filename)) != 0)
break;
if (get_param(params, 2, pattern, sizeof(pattern)) != 0)
*pattern = '\0';
s_count = 0;
p_count = 0;
lastlogsize = active_metrics[i].lastlogsize;
while (SUCCEED == (ret = process_log(filename, &lastlogsize, &value))) {
if (!value) /* EOF */
break;
if (SUCCEED == regexp_match_ex(regexps, regexps_num, value, pattern, ZBX_CASE_SENSITIVE)) {
send_err = process_value(
server,
port,
CONFIG_HOSTNAME,
active_metrics[i].key_orig,
value,
&lastlogsize,
NULL,
NULL,
NULL
);
s_count++;
}
p_count++;
zbx_free(value);
if (SUCCEED == send_err)
active_metrics[i].lastlogsize = lastlogsize;
else
lastlogsize = active_metrics[i].lastlogsize;
/* Do not flood ZABBIX server if file grows too fast */
if(s_count >= (MAX_LINES_PER_SECOND * active_metrics[i].refresh)) break;
/* Do not flood local system if file grows too fast */
if(p_count >= (4 * MAX_LINES_PER_SECOND * active_metrics[i].refresh)) break;
}
if( FAIL == ret )
{
active_metrics[i].status = ITEM_STATUS_NOTSUPPORTED;
zabbix_log( LOG_LEVEL_WARNING, "Active check [%s] is not supported. Disabled.",
active_metrics[i].key);
send_err = process_value(
server,
port,
CONFIG_HOSTNAME,
active_metrics[i].key_orig,
"ZBX_NOTSUPPORTED",
&active_metrics[i].lastlogsize,
NULL,
NULL,
NULL
);
}
}while(0); /* simple try realization */
}
/* Special processing for eventlog */
else if(strncmp(active_metrics[i].key,"eventlog[",9) == 0)
{
do{ /* simple try realization */
if (parse_command(active_metrics[i].key, NULL, 0, params, MAX_STRING_LEN) != 2)
break;
if (num_param(params) > 2)
break;
if (get_param(params, 1, filename, sizeof(filename)) != 0)
break;
if (get_param(params, 2, pattern, sizeof(pattern)) != 0)
*pattern = '\0';
s_count = 0;
p_count = 0;
lastlogsize = active_metrics[i].lastlogsize;
while (SUCCEED == (ret = process_eventlog(filename, &lastlogsize,
×tamp, &source, &severity, &value)))
{
if (!value) /* EOF */
break;
if (SUCCEED == regexp_match_ex(regexps, regexps_num, value, pattern, ZBX_CASE_SENSITIVE)) {
send_err = process_value(
server,
port,
CONFIG_HOSTNAME,
active_metrics[i].key_orig,
value,
&lastlogsize,
×tamp,
source,
&severity
);
s_count++;
}
p_count++;
zbx_free(source);
zbx_free(value);
if (SUCCEED == send_err)
active_metrics[i].lastlogsize = lastlogsize;
else
lastlogsize = active_metrics[i].lastlogsize;
/* Do not flood ZABBIX server if file grows too fast */
if(s_count >= (MAX_LINES_PER_SECOND * active_metrics[i].refresh)) break;
/* Do not flood local system if file grows too fast */
if(p_count >= (4 * MAX_LINES_PER_SECOND * active_metrics[i].refresh)) break;
}
if( FAIL == ret )
{
active_metrics[i].status = ITEM_STATUS_NOTSUPPORTED;
zabbix_log( LOG_LEVEL_WARNING, "Active check [%s] is not supported. Disabled.",
active_metrics[i].key);
send_err = process_value(
server,
port,
CONFIG_HOSTNAME,
active_metrics[i].key_orig,
"ZBX_NOTSUPPORTED",
&active_metrics[i].lastlogsize,
NULL,
NULL,
NULL
);
}
}while(0); /* simple try realization NOTE: never loop */
}
else
{
process(active_metrics[i].key, 0, &result);
if( NULL == (pvalue = GET_TEXT_RESULT(&result)) )
pvalue = GET_MSG_RESULT(&result);
if(pvalue)
{
zabbix_log( LOG_LEVEL_DEBUG, "For key [%s] received value [%s]", active_metrics[i].key, *pvalue);
send_err = process_value(
server,
port,
CONFIG_HOSTNAME,
active_metrics[i].key_orig,
*pvalue,
NULL,
NULL,
NULL,
NULL
);
if( 0 == strcmp(*pvalue,"ZBX_NOTSUPPORTED") )
{
active_metrics[i].status = ITEM_STATUS_NOTSUPPORTED;
zabbix_log( LOG_LEVEL_WARNING, "Active check [%s] is not supported. Disabled.", active_metrics[i].key);
}
}
free_result(&result);
}
active_metrics[i].nextcheck = (int)time(NULL)+active_metrics[i].refresh;
}
}
int main(int argc, char **argv)
{
char ch;
int task = ZBX_TASK_START;
char *TEST_METRIC = NULL;
zbx_sock_t s_in;
zbx_sock_t s_out;
int ret;
char **value, *command;
AGENT_RESULT result;
progname = get_program_name(argv[0]);
/* parse the command-line */
while ((char)EOF != (ch = (char)zbx_getopt_long(argc, argv, "c:hVpt:", longopts, NULL)))
{
switch (ch)
{
case 'c':
CONFIG_FILE = strdup(zbx_optarg);
break;
case 'h':
help();
exit(FAIL);
break;
case 'V':
version();
#ifdef _AIX
tl_version();
#endif
exit(FAIL);
break;
case 'p':
if (task == ZBX_TASK_START)
task = ZBX_TASK_PRINT_SUPPORTED;
break;
case 't':
if (task == ZBX_TASK_START)
{
task = ZBX_TASK_TEST_METRIC;
TEST_METRIC = strdup(zbx_optarg);
}
break;
default:
usage();
exit(FAIL);
break;
}
}
if (NULL == CONFIG_FILE)
CONFIG_FILE = DEFAULT_CONFIG_FILE;
/* load configuration */
if (ZBX_TASK_PRINT_SUPPORTED == task || ZBX_TASK_TEST_METRIC == task)
zbx_load_config(ZBX_CFG_FILE_OPTIONAL);
else
zbx_load_config(ZBX_CFG_FILE_REQUIRED);
/* metrics should be initialized before loading user parameters */
init_metrics();
/* user parameters */
load_user_parameters(CONFIG_USER_PARAMETERS);
/* aliases */
load_aliases(CONFIG_ALIASES);
zbx_free_config();
/* do not create debug files */
zabbix_open_log(LOG_TYPE_SYSLOG, LOG_LEVEL_EMPTY, NULL);
switch (task)
{
case ZBX_TASK_TEST_METRIC:
case ZBX_TASK_PRINT_SUPPORTED:
if (ZBX_TASK_TEST_METRIC == task)
test_parameter(TEST_METRIC);
else
test_parameters();
zabbix_close_log();
free_metrics();
alias_list_free();
exit(SUCCEED);
break;
default:
/* do nothing */
break;
}
signal(SIGINT, child_signal_handler);
signal(SIGTERM, child_signal_handler);
signal(SIGQUIT, child_signal_handler);
signal(SIGALRM, child_signal_handler);
alarm(CONFIG_TIMEOUT);
zbx_tcp_init(&s_in, (ZBX_SOCKET)fileno(stdin));
zbx_tcp_init(&s_out, (ZBX_SOCKET)fileno(stdout));
if (SUCCEED == (ret = zbx_tcp_check_security(&s_in, CONFIG_HOSTS_ALLOWED, 0)))
{
if (SUCCEED == (ret = zbx_tcp_recv(&s_in, &command)))
{
zbx_rtrim(command, "\r\n");
zabbix_log(LOG_LEVEL_DEBUG, "Requested [%s]", command);
init_result(&result);
process(command, 0, &result);
if (NULL == (value = GET_TEXT_RESULT(&result)))
value = GET_MSG_RESULT(&result);
if (NULL != value)
{
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [%s]", *value);
ret = zbx_tcp_send(&s_out, *value);
}
free_result(&result);
}
if (FAIL == ret)
zabbix_log(LOG_LEVEL_DEBUG, "Processing error: %s", zbx_tcp_strerror());
}
fflush(stdout);
alarm(0);
zabbix_close_log();
free_metrics();
alias_list_free();
return SUCCEED;
}
/******************************************************************************
* *
* Function: add_history *
* *
* Purpose: add new value to history *
* *
* Parameters: item - item data *
* value - new value of the item *
* now - new value of the item *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int add_history(DB_ITEM *item, AGENT_RESULT *value, int now)
{
int ret = FAIL;
zbx_uint64_t value_uint64;
double value_double;
zabbix_log(LOG_LEVEL_DEBUG, "In add_history(key:%s,value_type:%X,type:%X)",
item->key,
item->value_type,
value->type);
if (value->type & AR_UINT64)
zabbix_log(LOG_LEVEL_DEBUG, "In add_history(itemid:"ZBX_FS_UI64",UINT64:"ZBX_FS_UI64")",
item->itemid,
value->ui64);
if (value->type & AR_STRING)
zabbix_log(LOG_LEVEL_DEBUG, "In add_history(itemid:"ZBX_FS_UI64",STRING:%s)",
item->itemid,
value->str);
if (value->type & AR_DOUBLE)
zabbix_log(LOG_LEVEL_DEBUG, "In add_history(itemid:"ZBX_FS_UI64",DOUBLE:"ZBX_FS_DBL")",
item->itemid,
value->dbl);
if (value->type & AR_TEXT)
zabbix_log(LOG_LEVEL_DEBUG, "In add_history(itemid:"ZBX_FS_UI64",TEXT:[%s])",
item->itemid,
value->text);
switch (item->value_type) {
case ITEM_VALUE_TYPE_FLOAT:
if (NULL == GET_DBL_RESULT(value))
break;
switch (item->delta) { /* Should we store delta or original value? */
case ITEM_STORE_AS_IS:
if (item->history > 0)
DBadd_history(item->itemid, DBmultiply_value_float(item, value->dbl), now);
ret = SUCCEED;
break;
case ITEM_STORE_SPEED_PER_SECOND: /* Delta as speed of change */
if (0 == item->prevorgvalue_null && item->prevorgvalue_dbl <= value->dbl && item->lastclock < now)
{
if (item->history > 0)
{
value_double = (value->dbl - item->prevorgvalue_dbl) / (now - item->lastclock);
DBadd_history(item->itemid, DBmultiply_value_float(item, value_double), now);
}
ret = SUCCEED;
}
break;
case ITEM_STORE_SIMPLE_CHANGE: /* Real delta: simple difference between values */
if (0 == item->prevorgvalue_null && item->prevorgvalue_dbl <= value->dbl)
{
if (item->history > 0)
DBadd_history(item->itemid, DBmultiply_value_float(item, value->dbl - item->prevorgvalue_dbl), now);
ret = SUCCEED;
}
break;
default:
zabbix_log(LOG_LEVEL_ERR, "Value not stored for itemid [" ZBX_FS_UI64 "]. Unknown delta [%d]",
item->itemid,
item->delta);
zabbix_syslog("Value not stored for itemid [" ZBX_FS_UI64 "]. Unknown delta [%d]",
item->itemid,
item->delta);
}
break;
case ITEM_VALUE_TYPE_UINT64:
if (NULL == GET_UI64_RESULT(value))
break;
switch (item->delta) { /* Should we store delta or original value? */
case ITEM_STORE_AS_IS:
if (item->history > 0)
DBadd_history_uint(item->itemid, DBmultiply_value_uint64(item, value->ui64), now);
ret = SUCCEED;
break;
case ITEM_STORE_SPEED_PER_SECOND: /* Delta as speed of change */
if (0 == item->prevorgvalue_null && item->prevorgvalue_uint64 <= value->ui64 && item->lastclock < now)
{
if (item->history > 0)
{
value_uint64 = (zbx_uint64_t)(value->ui64 - item->prevorgvalue_uint64) / (now - item->lastclock);
DBadd_history_uint(item->itemid, DBmultiply_value_uint64(item, value_uint64), now);
}
ret = SUCCEED;
}
break;
case ITEM_STORE_SIMPLE_CHANGE: /* Real delta: simple difference between values */
if (0 == item->prevorgvalue_null && item->prevorgvalue_uint64 <= value->ui64)
{
if (item->history > 0)
DBadd_history_uint(item->itemid, DBmultiply_value_uint64(item, value->ui64 - item->prevorgvalue_uint64), now);
ret = SUCCEED;
}
break;
default:
zabbix_log(LOG_LEVEL_ERR, "Value not stored for itemid [" ZBX_FS_UI64 "]. Unknown delta [%d]",
item->itemid,
item->delta);
zabbix_syslog("Value not stored for itemid [" ZBX_FS_UI64 "]. Unknown delta [%d]",
item->itemid,
item->delta);
}
break;
case ITEM_VALUE_TYPE_STR:
if (NULL == GET_STR_RESULT(value))
break;
if (item->history > 0)
DBadd_history_str(item->itemid, value->str, now);
ret = SUCCEED;
break;
case ITEM_VALUE_TYPE_LOG:
if (NULL == GET_STR_RESULT(value))
break;
if (item->history > 0)
DBadd_history_log(item->itemid, value->str, now, item->timestamp, item->eventlog_source,
item->eventlog_severity, item->lastlogsize);
ret = SUCCEED;
break;
case ITEM_VALUE_TYPE_TEXT:
if (NULL == GET_TEXT_RESULT(value))
break;
if (item->history > 0)
DBadd_history_text(item->itemid,value->text,now);
ret = SUCCEED;
break;
default:
zabbix_log(LOG_LEVEL_ERR, "Unknown value type [%d] for itemid [" ZBX_FS_UI64 "]",
item->value_type,
item->itemid);
zabbix_syslog("Unknown value type [%d] for itemid [" ZBX_FS_UI64 "]",
item->value_type,
item->itemid);
}
zabbix_log(LOG_LEVEL_DEBUG, "End of add_history():%s",
zbx_result_string(ret));
return ret;
}
int main(int argc, char **argv)
{
char ch;
int task = ZBX_TASK_START;
char *TEST_METRIC = NULL;
zbx_sock_t s_in;
zbx_sock_t s_out;
int ret;
char **value, *command;
AGENT_RESULT result;
memset(&result, 0, sizeof(AGENT_RESULT));
progname = get_program_name(argv[0]);
/* Parse the command-line. */
while ((ch = (char)zbx_getopt_long(argc, argv, "c:hVpt:", longopts, NULL)) != (char)EOF)
switch (ch)
{
case 'c':
CONFIG_FILE = strdup(zbx_optarg);
break;
case 'h':
help();
exit(-1);
break;
case 'V':
version();
#ifdef _AIX
tl_version();
#endif /* _AIX */
exit(-1);
break;
case 'p':
if (task == ZBX_TASK_START)
task = ZBX_TASK_PRINT_SUPPORTED;
break;
case 't':
if (task == ZBX_TASK_START)
{
task = ZBX_TASK_TEST_METRIC;
TEST_METRIC = strdup(zbx_optarg);
}
break;
default:
task = ZBX_TASK_SHOW_USAGE;
break;
}
if (CONFIG_FILE == NULL)
CONFIG_FILE = DEFAULT_CONFIG_FILE;
init_metrics();
if (ZBX_TASK_START == task)
{
load_config();
load_user_parameters(0);
}
/* Do not create debug files */
zabbix_open_log(LOG_TYPE_SYSLOG, LOG_LEVEL_EMPTY, NULL);
switch (task)
{
case ZBX_TASK_PRINT_SUPPORTED:
load_user_parameters(1);
test_parameters();
exit(-1);
break;
case ZBX_TASK_TEST_METRIC:
load_user_parameters(1);
test_parameter(TEST_METRIC, PROCESS_TEST);
exit(-1);
break;
case ZBX_TASK_SHOW_USAGE:
usage();
exit(-1);
break;
}
signal(SIGINT, child_signal_handler);
signal(SIGTERM, child_signal_handler);
signal(SIGQUIT, child_signal_handler);
signal(SIGALRM, child_signal_handler);
alarm(CONFIG_TIMEOUT);
zbx_tcp_init(&s_in, (ZBX_SOCKET)fileno(stdin));
zbx_tcp_init(&s_out, (ZBX_SOCKET)fileno(stdout));
if( SUCCEED == (ret = zbx_tcp_check_security(&s_in, CONFIG_HOSTS_ALLOWED, 0)) )
{
if( SUCCEED == (ret = zbx_tcp_recv(&s_in, &command)) )
{
zbx_rtrim(command, "\r\n");
zabbix_log(LOG_LEVEL_DEBUG, "Requested [%s]", command);
init_result(&result);
process(command, 0, &result);
if( NULL == (value = GET_TEXT_RESULT(&result)) )
value = GET_MSG_RESULT(&result);
if(value)
{
zabbix_log(LOG_LEVEL_DEBUG, "Sending back [%s]", *value);
ret = zbx_tcp_send(&s_out, *value);
}
free_result(&result);
}
if( FAIL == ret )
{
zabbix_log(LOG_LEVEL_DEBUG, "Processing error: %s", zbx_tcp_strerror());
}
}
fflush(stdout);
free_metrics();
alias_list_free();
alarm(0);
zabbix_close_log();
return SUCCEED;
}
