int main(int argc, char **argv)
{
ZBX_TASK_EX t;
#ifdef _WINDOWS
int ret;
/* Provide, so our process handles errors instead of the system itself. */
/* Attention!!! */
/* The system does not display the critical-error-handler message box. */
/* Instead, the system sends the error to the calling process.*/
SetErrorMode(SEM_FAILCRITICALERRORS);
#endif
#if defined(PS_OVERWRITE_ARGV) || defined(PS_PSTAT_ARGV)
argv = setproctitle_save_env(argc, argv);
#endif
memset(&t, 0, sizeof(t));
t.task = ZBX_TASK_START;
progname = get_program_name(argv[0]);
parse_commandline(argc, argv, &t);
import_symbols();
/* this is needed to set default hostname in zbx_load_config() */
init_metrics();
switch (t.task)
{
case ZBX_TASK_SHOW_USAGE:
usage();
exit(EXIT_FAILURE);
break;
#ifdef _WINDOWS
case ZBX_TASK_INSTALL_SERVICE:
case ZBX_TASK_UNINSTALL_SERVICE:
case ZBX_TASK_START_SERVICE:
case ZBX_TASK_STOP_SERVICE:
zbx_load_config(ZBX_CFG_FILE_REQUIRED);
zbx_free_config();
if (t.flags & ZBX_TASK_FLAG_MULTIPLE_AGENTS)
{
zbx_snprintf(ZABBIX_SERVICE_NAME, sizeof(ZABBIX_SERVICE_NAME), "%s [%s]",
APPLICATION_NAME, CONFIG_HOSTNAME);
zbx_snprintf(ZABBIX_EVENT_SOURCE, sizeof(ZABBIX_EVENT_SOURCE), "%s [%s]",
APPLICATION_NAME, CONFIG_HOSTNAME);
}
ret = zbx_exec_service_task(argv[0], &t);
free_metrics();
exit(ret);
break;
#endif
case ZBX_TASK_TEST_METRIC:
case ZBX_TASK_PRINT_SUPPORTED:
zbx_load_config(ZBX_CFG_FILE_OPTIONAL);
#ifdef _WINDOWS
init_perf_collector(0);
load_perf_counters(CONFIG_PERF_COUNTERS);
#else
zbx_set_common_signal_handlers();
#endif
#ifndef _WINDOWS
if (FAIL == load_modules(CONFIG_LOAD_MODULE_PATH, CONFIG_LOAD_MODULE, CONFIG_TIMEOUT, 0))
{
zabbix_log(LOG_LEVEL_CRIT, "loading modules failed, exiting...");
exit(EXIT_FAILURE);
}
#endif
load_user_parameters(CONFIG_USER_PARAMETERS);
load_aliases(CONFIG_ALIASES);
zbx_free_config();
if (ZBX_TASK_TEST_METRIC == t.task)
test_parameter(TEST_METRIC);
else
test_parameters();
#ifdef _WINDOWS
free_perf_collector(); /* cpu_collector must be freed before perf_collector is freed */
#endif
#ifndef _WINDOWS
unload_modules();
#endif
free_metrics();
alias_list_free();
exit(SUCCEED);
break;
default:
zbx_load_config(ZBX_CFG_FILE_REQUIRED);
break;
}
START_MAIN_ZABBIX_ENTRY(CONFIG_ALLOW_ROOT);
exit(SUCCEED);
}
int MAIN_ZABBIX_ENTRY()
{
zbx_thread_args_t *thread_args;
zbx_sock_t listen_sock;
int i, thread_num = 0;
#ifdef _WINDOWS
DWORD res;
#endif
if (NULL == CONFIG_LOG_FILE || '\0' == *CONFIG_LOG_FILE)
zabbix_open_log(LOG_TYPE_SYSLOG, CONFIG_LOG_LEVEL, NULL);
else
zabbix_open_log(LOG_TYPE_FILE, CONFIG_LOG_LEVEL, CONFIG_LOG_FILE);
zabbix_log(LOG_LEVEL_INFORMATION, "Starting Zabbix Agent [%s]. Zabbix %s (revision %s).",
CONFIG_HOSTNAME, ZABBIX_VERSION, ZABBIX_REVISION);
zabbix_log(LOG_LEVEL_INFORMATION, "using configuration file: %s", CONFIG_FILE);
#ifndef _WINDOWS
if (FAIL == load_modules(CONFIG_LOAD_MODULE_PATH, CONFIG_LOAD_MODULE, CONFIG_TIMEOUT, 1))
{
zabbix_log(LOG_LEVEL_CRIT, "loading modules failed, exiting...");
exit(EXIT_FAILURE);
}
#endif
if (0 != CONFIG_PASSIVE_FORKS)
{
if (FAIL == zbx_tcp_listen(&listen_sock, CONFIG_LISTEN_IP, (unsigned short)CONFIG_LISTEN_PORT))
{
zabbix_log(LOG_LEVEL_CRIT, "listener failed: %s", zbx_tcp_strerror());
exit(1);
}
}
init_collector_data();
#ifdef _WINDOWS
init_perf_collector(1);
load_perf_counters(CONFIG_PERF_COUNTERS);
#endif
load_user_parameters(CONFIG_USER_PARAMETERS);
load_aliases(CONFIG_ALIASES);
zbx_free_config();
/* --- START THREADS ---*/
/* allocate memory for a collector, all listeners and an active check */
threads_num = 1 + CONFIG_PASSIVE_FORKS + CONFIG_ACTIVE_FORKS;
threads = zbx_calloc(threads, threads_num, sizeof(ZBX_THREAD_HANDLE));
/* start the collector thread */
thread_args = (zbx_thread_args_t *)zbx_malloc(NULL, sizeof(zbx_thread_args_t));
thread_args->thread_num = thread_num;
thread_args->thread_num2 = 1;
thread_args->args = NULL;
threads[thread_num++] = zbx_thread_start(collector_thread, thread_args);
/* start listeners */
for (i = 0; i < CONFIG_PASSIVE_FORKS; i++)
{
thread_args = (zbx_thread_args_t *)zbx_malloc(NULL, sizeof(zbx_thread_args_t));
thread_args->thread_num = thread_num;
thread_args->thread_num2 = i + 1;
thread_args->args = &listen_sock;
threads[thread_num++] = zbx_thread_start(listener_thread, thread_args);
}
/* start active check */
for (i = 0; i < CONFIG_ACTIVE_FORKS; i++)
{
thread_args = (zbx_thread_args_t *)zbx_malloc(NULL, sizeof(zbx_thread_args_t));
thread_args->thread_num = thread_num;
thread_args->thread_num2 = i + 1;
thread_args->args = &CONFIG_ACTIVE_ARGS[i];
threads[thread_num++] = zbx_thread_start(active_checks_thread, thread_args);
}
#ifdef _WINDOWS
set_parent_signal_handler(); /* must be called after all threads are created */
/* wait for an exiting thread */
res = WaitForMultipleObjectsEx(threads_num, threads, FALSE, INFINITE, FALSE);
if (ZBX_IS_RUNNING())
{
/* Zabbix agent service should either be stopped by the user in ServiceCtrlHandler() or */
/* crash. If some thread has terminated normally, it means something is terribly wrong. */
zabbix_log(LOG_LEVEL_CRIT, "One thread has terminated unexpectedly (code:%lu). Exiting ...", res);
THIS_SHOULD_NEVER_HAPPEN;
/* notify other threads and allow them to terminate */
ZBX_DO_EXIT();
zbx_sleep(1);
}
else
{
/* wait for the service worker thread to terminate us */
zbx_sleep(3);
THIS_SHOULD_NEVER_HAPPEN;
}
#else
while (-1 == wait(&i)) /* wait for any child to exit */
{
if (EINTR != errno)
{
zabbix_log(LOG_LEVEL_ERR, "failed to wait on child processes: %s", zbx_strerror(errno));
break;
}
}
/* all exiting child processes should be caught by signal handlers */
THIS_SHOULD_NEVER_HAPPEN;
#endif
zbx_on_exit();
return SUCCEED;
}
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;
}
int MAIN_ZABBIX_ENTRY(int flags)
{
zbx_socket_t listen_sock;
char *error = NULL;
int i, db_type;
if (0 != (flags & ZBX_TASK_FLAG_FOREGROUND))
{
printf("Starting Zabbix Server. Zabbix %s (revision %s).\nPress Ctrl+C to exit.\n\n",
ZABBIX_VERSION, ZABBIX_REVISION);
}
if (SUCCEED != zbx_locks_create(&error))
{
zbx_error("cannot create locks: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != zabbix_open_log(CONFIG_LOG_TYPE, CONFIG_LOG_LEVEL, CONFIG_LOG_FILE, &error))
{
zbx_error("cannot open log: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
#ifdef HAVE_NETSNMP
# define SNMP_FEATURE_STATUS "YES"
#else
# define SNMP_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_OPENIPMI
# define IPMI_FEATURE_STATUS "YES"
#else
# define IPMI_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_LIBCURL
# define LIBCURL_FEATURE_STATUS "YES"
#else
# define LIBCURL_FEATURE_STATUS " NO"
#endif
#if defined(HAVE_LIBCURL) && defined(HAVE_LIBXML2)
# define VMWARE_FEATURE_STATUS "YES"
#else
# define VMWARE_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_SMTP_AUTHENTICATION
# define SMTP_AUTH_FEATURE_STATUS "YES"
#else
# define SMTP_AUTH_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_JABBER
# define JABBER_FEATURE_STATUS "YES"
#else
# define JABBER_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_UNIXODBC
# define ODBC_FEATURE_STATUS "YES"
#else
# define ODBC_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_SSH2
# define SSH2_FEATURE_STATUS "YES"
#else
# define SSH2_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_IPV6
# define IPV6_FEATURE_STATUS "YES"
#else
# define IPV6_FEATURE_STATUS " NO"
#endif
#if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
# define TLS_FEATURE_STATUS "YES"
#else
# define TLS_FEATURE_STATUS " NO"
#endif
zabbix_log(LOG_LEVEL_INFORMATION, "Starting Zabbix Server. Zabbix %s (revision %s).",
ZABBIX_VERSION, ZABBIX_REVISION);
zabbix_log(LOG_LEVEL_INFORMATION, "****** Enabled features ******");
zabbix_log(LOG_LEVEL_INFORMATION, "SNMP monitoring: " SNMP_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPMI monitoring: " IPMI_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "Web monitoring: " LIBCURL_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "VMware monitoring: " VMWARE_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "SMTP authentication: " SMTP_AUTH_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "Jabber notifications: " JABBER_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "Ez Texting notifications: " LIBCURL_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "ODBC: " ODBC_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "SSH2 support: " SSH2_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPv6 support: " IPV6_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "TLS support: " TLS_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "******************************");
zabbix_log(LOG_LEVEL_INFORMATION, "using configuration file: %s", CONFIG_FILE);
#if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
if (SUCCEED != zbx_coredump_disable())
{
zabbix_log(LOG_LEVEL_CRIT, "cannot disable core dump, exiting...");
exit(EXIT_FAILURE);
}
#endif
if (FAIL == zbx_load_modules(CONFIG_LOAD_MODULE_PATH, CONFIG_LOAD_MODULE, CONFIG_TIMEOUT, 1))
{
zabbix_log(LOG_LEVEL_CRIT, "loading modules failed, exiting...");
exit(EXIT_FAILURE);
}
zbx_free_config();
if (SUCCEED != init_database_cache(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize database cache: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != init_configuration_cache(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize configuration cache: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != init_selfmon_collector(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize self-monitoring: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (0 != CONFIG_VMWARE_FORKS && SUCCEED != zbx_vmware_init(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize VMware cache: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != zbx_vc_init(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize history value cache: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != zbx_create_itservices_lock(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot create IT services lock: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (SUCCEED != zbx_history_init(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize history storage: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (FAIL == zbx_export_init(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot initialize export: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
if (ZBX_DB_UNKNOWN == (db_type = zbx_db_get_database_type()))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot use database \"%s\": database is not a Zabbix database",
CONFIG_DBNAME);
exit(EXIT_FAILURE);
}
else if (ZBX_DB_SERVER != db_type)
{
zabbix_log(LOG_LEVEL_CRIT, "cannot use database \"%s\": its \"users\" table is empty (is this the"
" Zabbix proxy database?)", CONFIG_DBNAME);
exit(EXIT_FAILURE);
}
if (SUCCEED != DBcheck_version())
exit(EXIT_FAILURE);
DBconnect(ZBX_DB_CONNECT_NORMAL);
/* make initial configuration sync before worker processes are forked */
DCsync_configuration(ZBX_DBSYNC_INIT);
if (SUCCEED != zbx_check_postinit_tasks(&error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot complete post initialization tasks: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
/* update maintenance states */
zbx_dc_update_maintenances();
DBclose();
zbx_vc_enable();
threads_num = CONFIG_CONFSYNCER_FORKS + CONFIG_POLLER_FORKS
+ CONFIG_UNREACHABLE_POLLER_FORKS + CONFIG_TRAPPER_FORKS + CONFIG_PINGER_FORKS
+ CONFIG_ALERTER_FORKS + CONFIG_HOUSEKEEPER_FORKS + CONFIG_TIMER_FORKS
+ CONFIG_HTTPPOLLER_FORKS + CONFIG_DISCOVERER_FORKS + CONFIG_HISTSYNCER_FORKS
+ CONFIG_ESCALATOR_FORKS + CONFIG_IPMIPOLLER_FORKS + CONFIG_JAVAPOLLER_FORKS
+ CONFIG_SNMPTRAPPER_FORKS + CONFIG_PROXYPOLLER_FORKS + CONFIG_SELFMON_FORKS
+ CONFIG_VMWARE_FORKS + CONFIG_TASKMANAGER_FORKS + CONFIG_IPMIMANAGER_FORKS
+ CONFIG_ALERTMANAGER_FORKS + CONFIG_PREPROCMAN_FORKS + CONFIG_PREPROCESSOR_FORKS
+ CONFIG_LLDMANAGER_FORKS + CONFIG_LLDWORKER_FORKS;
threads = (pid_t *)zbx_calloc(threads, threads_num, sizeof(pid_t));
if (0 != CONFIG_TRAPPER_FORKS)
{
if (FAIL == zbx_tcp_listen(&listen_sock, CONFIG_LISTEN_IP, (unsigned short)CONFIG_LISTEN_PORT))
{
zabbix_log(LOG_LEVEL_CRIT, "listener failed: %s", zbx_socket_strerror());
exit(EXIT_FAILURE);
}
}
#if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
zbx_tls_init_parent();
#endif
zabbix_log(LOG_LEVEL_INFORMATION, "server #0 started [main process]");
for (i = 0; i < threads_num; i++)
{
zbx_thread_args_t thread_args;
unsigned char poller_type;
if (FAIL == get_process_info_by_thread(i + 1, &thread_args.process_type, &thread_args.process_num))
{
THIS_SHOULD_NEVER_HAPPEN;
exit(EXIT_FAILURE);
}
thread_args.server_num = i + 1;
thread_args.args = NULL;
switch (thread_args.process_type)
{
case ZBX_PROCESS_TYPE_CONFSYNCER:
zbx_thread_start(dbconfig_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_POLLER:
poller_type = ZBX_POLLER_TYPE_NORMAL;
thread_args.args = &poller_type;
zbx_thread_start(poller_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_UNREACHABLE:
poller_type = ZBX_POLLER_TYPE_UNREACHABLE;
thread_args.args = &poller_type;
zbx_thread_start(poller_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_TRAPPER:
thread_args.args = &listen_sock;
zbx_thread_start(trapper_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_PINGER:
zbx_thread_start(pinger_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_ALERTER:
zbx_thread_start(alerter_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_HOUSEKEEPER:
zbx_thread_start(housekeeper_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_TIMER:
zbx_thread_start(timer_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_HTTPPOLLER:
zbx_thread_start(httppoller_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_DISCOVERER:
zbx_thread_start(discoverer_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_HISTSYNCER:
zbx_thread_start(dbsyncer_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_ESCALATOR:
zbx_thread_start(escalator_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_JAVAPOLLER:
poller_type = ZBX_POLLER_TYPE_JAVA;
thread_args.args = &poller_type;
zbx_thread_start(poller_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_SNMPTRAPPER:
zbx_thread_start(snmptrapper_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_PROXYPOLLER:
zbx_thread_start(proxypoller_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_SELFMON:
zbx_thread_start(selfmon_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_VMWARE:
zbx_thread_start(vmware_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_TASKMANAGER:
zbx_thread_start(taskmanager_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_PREPROCMAN:
zbx_thread_start(preprocessing_manager_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_PREPROCESSOR:
zbx_thread_start(preprocessing_worker_thread, &thread_args, &threads[i]);
break;
#ifdef HAVE_OPENIPMI
case ZBX_PROCESS_TYPE_IPMIMANAGER:
zbx_thread_start(ipmi_manager_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_IPMIPOLLER:
zbx_thread_start(ipmi_poller_thread, &thread_args, &threads[i]);
break;
#endif
case ZBX_PROCESS_TYPE_ALERTMANAGER:
zbx_thread_start(alert_manager_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_LLDMANAGER:
zbx_thread_start(lld_manager_thread, &thread_args, &threads[i]);
break;
case ZBX_PROCESS_TYPE_LLDWORKER:
zbx_thread_start(lld_worker_thread, &thread_args, &threads[i]);
break;
}
}
if (SUCCEED == zbx_is_export_enabled())
{
zbx_history_export_init("main-process", 0);
zbx_problems_export_init("main-process", 0);
}
while (-1 == wait(&i)) /* wait for any child to exit */
{
if (EINTR != errno)
{
zabbix_log(LOG_LEVEL_ERR, "failed to wait on child processes: %s", zbx_strerror(errno));
break;
}
}
/* all exiting child processes should be caught by signal handlers */
THIS_SHOULD_NEVER_HAPPEN;
zbx_on_exit();
return SUCCEED;
}
int MAIN_ZABBIX_ENTRY()
{
DB_RESULT result;
DB_ROW row;
pid_t pid;
zbx_sock_t listen_sock;
int i, server_num = 0, server_count = 0;
if (NULL == CONFIG_LOG_FILE || '\0' == *CONFIG_LOG_FILE)
zabbix_open_log(LOG_TYPE_SYSLOG, CONFIG_LOG_LEVEL, NULL);
else
zabbix_open_log(LOG_TYPE_FILE, CONFIG_LOG_LEVEL, CONFIG_LOG_FILE);
#ifdef HAVE_SNMP
# define SNMP_FEATURE_STATUS "YES"
#else
# define SNMP_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_OPENIPMI
# define IPMI_FEATURE_STATUS "YES"
#else
# define IPMI_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_LIBCURL
# define LIBCURL_FEATURE_STATUS "YES"
#else
# define LIBCURL_FEATURE_STATUS " NO"
#endif
#if defined(HAVE_LIBXML2) && defined(HAVE_LIBCURL)
# define VMWARE_FEATURE_STATUS "YES"
#else
# define VMWARE_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_JABBER
# define JABBER_FEATURE_STATUS "YES"
#else
# define JABBER_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_UNIXODBC
# define ODBC_FEATURE_STATUS "YES"
#else
# define ODBC_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_SSH2
# define SSH2_FEATURE_STATUS "YES"
#else
# define SSH2_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_IPV6
# define IPV6_FEATURE_STATUS "YES"
#else
# define IPV6_FEATURE_STATUS " NO"
#endif
zabbix_log(LOG_LEVEL_INFORMATION, "Starting Zabbix Server. Zabbix %s (revision %s).",
ZABBIX_VERSION, ZABBIX_REVISION);
zabbix_log(LOG_LEVEL_INFORMATION, "****** Enabled features ******");
zabbix_log(LOG_LEVEL_INFORMATION, "SNMP monitoring: " SNMP_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPMI monitoring: " IPMI_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "WEB monitoring: " LIBCURL_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "VMware monitoring: " VMWARE_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "Jabber notifications: " JABBER_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "Ez Texting notifications: " LIBCURL_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "ODBC: " ODBC_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "SSH2 support: " SSH2_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPv6 support: " IPV6_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "******************************");
if (0 != CONFIG_NODEID)
{
zabbix_log(LOG_LEVEL_INFORMATION, "NodeID: %3d", CONFIG_NODEID);
zabbix_log(LOG_LEVEL_INFORMATION, "******************************");
}
zabbix_log(LOG_LEVEL_INFORMATION, "using configuration file: %s", CONFIG_FILE);
if (FAIL == load_modules(CONFIG_LOAD_MODULE_PATH, CONFIG_LOAD_MODULE, CONFIG_TIMEOUT, 1))
{
zabbix_log(LOG_LEVEL_CRIT, "loading modules failed, exiting...");
exit(EXIT_FAILURE);
}
zbx_free_config();
init_database_cache();
init_configuration_cache();
init_selfmon_collector();
/* initialize vmware support */
if (0 != CONFIG_VMWARE_FORKS)
zbx_vmware_init();
/* initialize history value cache */
zbx_vc_init();
zbx_create_itservices_lock();
#ifdef HAVE_SQLITE3
zbx_create_sqlite3_mutex();
#endif
if (SUCCEED != DBcheck_version())
exit(EXIT_FAILURE);
DBconnect(ZBX_DB_CONNECT_NORMAL);
if (0 != CONFIG_NODEID)
{
result = DBselect("select masterid from nodes where nodeid=%d", CONFIG_NODEID);
if (NULL != (row = DBfetch(result)) && SUCCEED != DBis_null(row[0]))
CONFIG_MASTER_NODEID = atoi(row[0]);
DBfree_result(result);
}
DCload_config();
/* make initial configuration sync before worker processes are forked */
DCsync_configuration();
DBclose();
if (ZBX_MUTEX_ERROR == zbx_mutex_create_force(&node_sync_access, ZBX_MUTEX_NODE_SYNC))
{
zbx_error("Unable to create mutex for node syncs");
exit(FAIL);
}
threads_num = CONFIG_CONFSYNCER_FORKS + CONFIG_WATCHDOG_FORKS + CONFIG_POLLER_FORKS
+ CONFIG_UNREACHABLE_POLLER_FORKS + CONFIG_TRAPPER_FORKS + CONFIG_PINGER_FORKS
+ CONFIG_ALERTER_FORKS + CONFIG_HOUSEKEEPER_FORKS + CONFIG_TIMER_FORKS
+ CONFIG_NODEWATCHER_FORKS + CONFIG_HTTPPOLLER_FORKS + CONFIG_DISCOVERER_FORKS
+ CONFIG_HISTSYNCER_FORKS + CONFIG_ESCALATOR_FORKS + CONFIG_IPMIPOLLER_FORKS
+ CONFIG_JAVAPOLLER_FORKS + CONFIG_SNMPTRAPPER_FORKS + CONFIG_PROXYPOLLER_FORKS
+ CONFIG_SELFMON_FORKS + CONFIG_VMWARE_FORKS;
threads = zbx_calloc(threads, threads_num, sizeof(pid_t));
if (0 < CONFIG_TRAPPER_FORKS)
{
if (FAIL == zbx_tcp_listen(&listen_sock, CONFIG_LISTEN_IP, (unsigned short)CONFIG_LISTEN_PORT))
{
zabbix_log(LOG_LEVEL_CRIT, "listener failed: %s", zbx_tcp_strerror());
exit(1);
}
}
for (i = 0; i < threads_num; i++)
{
if (0 == (pid = zbx_child_fork()))
{
server_num = i + 1; /* child processes are numbered starting from 1 */
break;
}
else
threads[i] = pid;
}
if (0 == server_num)
{
zabbix_log(LOG_LEVEL_INFORMATION, "server #0 started [main process]");
while (-1 == wait(&i)) /* wait for any child to exit */
{
if (EINTR != errno)
{
zabbix_log(LOG_LEVEL_ERR, "failed to wait on child processes: %s", zbx_strerror(errno));
break;
}
}
/* all exiting child processes should be caught by signal handlers */
THIS_SHOULD_NEVER_HAPPEN;
zbx_on_exit();
}
else if (server_num <= (server_count += CONFIG_CONFSYNCER_FORKS))
{
/* !!! configuration syncer must be server #1 - child_signal_handler() uses threads[0] !!! */
INIT_SERVER(ZBX_PROCESS_TYPE_CONFSYNCER, CONFIG_CONFSYNCER_FORKS);
main_dbconfig_loop();
}
else if (server_num <= (server_count += CONFIG_WATCHDOG_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_WATCHDOG, CONFIG_WATCHDOG_FORKS);
main_watchdog_loop();
}
else if (server_num <= (server_count += CONFIG_POLLER_FORKS))
{
#ifdef HAVE_SNMP
init_snmp("zabbix_server");
#endif
INIT_SERVER(ZBX_PROCESS_TYPE_POLLER, CONFIG_POLLER_FORKS);
main_poller_loop(ZBX_POLLER_TYPE_NORMAL);
}
else if (server_num <= (server_count += CONFIG_UNREACHABLE_POLLER_FORKS))
{
#ifdef HAVE_SNMP
init_snmp("zabbix_server");
#endif
INIT_SERVER(ZBX_PROCESS_TYPE_UNREACHABLE, CONFIG_UNREACHABLE_POLLER_FORKS);
main_poller_loop(ZBX_POLLER_TYPE_UNREACHABLE);
}
else if (server_num <= (server_count += CONFIG_TRAPPER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_TRAPPER, CONFIG_TRAPPER_FORKS);
main_trapper_loop(&listen_sock);
}
else if (server_num <= (server_count += CONFIG_PINGER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_PINGER, CONFIG_PINGER_FORKS);
main_pinger_loop();
}
else if (server_num <= (server_count += CONFIG_ALERTER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_ALERTER, CONFIG_ALERTER_FORKS);
main_alerter_loop();
}
else if (server_num <= (server_count += CONFIG_HOUSEKEEPER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_HOUSEKEEPER, CONFIG_HOUSEKEEPER_FORKS);
main_housekeeper_loop();
}
else if (server_num <= (server_count += CONFIG_TIMER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_TIMER, CONFIG_TIMER_FORKS);
main_timer_loop();
}
else if (server_num <= (server_count += CONFIG_NODEWATCHER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_NODEWATCHER, CONFIG_NODEWATCHER_FORKS);
main_nodewatcher_loop();
}
else if (server_num <= (server_count += CONFIG_HTTPPOLLER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_HTTPPOLLER, CONFIG_HTTPPOLLER_FORKS);
main_httppoller_loop();
}
else if (server_num <= (server_count += CONFIG_DISCOVERER_FORKS))
{
#ifdef HAVE_SNMP
init_snmp("zabbix_server");
#endif
INIT_SERVER(ZBX_PROCESS_TYPE_DISCOVERER, CONFIG_DISCOVERER_FORKS);
main_discoverer_loop();
}
else if (server_num <= (server_count += CONFIG_HISTSYNCER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_HISTSYNCER, CONFIG_HISTSYNCER_FORKS);
main_dbsyncer_loop();
}
else if (server_num <= (server_count += CONFIG_ESCALATOR_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_ESCALATOR, CONFIG_ESCALATOR_FORKS);
main_escalator_loop();
}
else if (server_num <= (server_count += CONFIG_IPMIPOLLER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_IPMIPOLLER, CONFIG_IPMIPOLLER_FORKS);
main_poller_loop(ZBX_POLLER_TYPE_IPMI);
}
else if (server_num <= (server_count += CONFIG_JAVAPOLLER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_JAVAPOLLER, CONFIG_JAVAPOLLER_FORKS);
main_poller_loop(ZBX_POLLER_TYPE_JAVA);
}
else if (server_num <= (server_count += CONFIG_SNMPTRAPPER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_SNMPTRAPPER, CONFIG_SNMPTRAPPER_FORKS);
main_snmptrapper_loop();
}
else if (server_num <= (server_count += CONFIG_PROXYPOLLER_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_PROXYPOLLER, CONFIG_PROXYPOLLER_FORKS);
main_proxypoller_loop();
}
else if (server_num <= (server_count += CONFIG_SELFMON_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_SELFMON, CONFIG_SELFMON_FORKS);
main_selfmon_loop();
}
else if (server_num <= (server_count += CONFIG_VMWARE_FORKS))
{
INIT_SERVER(ZBX_PROCESS_TYPE_VMWARE, CONFIG_VMWARE_FORKS);
main_vmware_loop();
}
return SUCCEED;
}
int MAIN_ZABBIX_ENTRY()
{
zbx_sock_t listen_sock;
int i, db_type;
if (NULL == CONFIG_LOG_FILE || '\0' == *CONFIG_LOG_FILE)
zabbix_open_log(LOG_TYPE_SYSLOG, CONFIG_LOG_LEVEL, NULL);
else
zabbix_open_log(LOG_TYPE_FILE, CONFIG_LOG_LEVEL, CONFIG_LOG_FILE);
#ifdef HAVE_NETSNMP
# define SNMP_FEATURE_STATUS "YES"
#else
# define SNMP_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_OPENIPMI
# define IPMI_FEATURE_STATUS "YES"
#else
# define IPMI_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_LIBCURL
# define LIBCURL_FEATURE_STATUS "YES"
#else
# define LIBCURL_FEATURE_STATUS " NO"
#endif
#if defined(HAVE_LIBXML2) && defined(HAVE_LIBCURL)
# define VMWARE_FEATURE_STATUS "YES"
#else
# define VMWARE_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_UNIXODBC
# define ODBC_FEATURE_STATUS "YES"
#else
# define ODBC_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_SSH2
# define SSH2_FEATURE_STATUS "YES"
#else
# define SSH2_FEATURE_STATUS " NO"
#endif
#ifdef HAVE_IPV6
# define IPV6_FEATURE_STATUS "YES"
#else
# define IPV6_FEATURE_STATUS " NO"
#endif
zabbix_log(LOG_LEVEL_INFORMATION, "Starting Zabbix Proxy (%s) [%s]. Zabbix %s (revision %s).",
ZBX_PROXYMODE_PASSIVE == CONFIG_PROXYMODE ? "passive" : "active",
CONFIG_HOSTNAME, ZABBIX_VERSION, ZABBIX_REVISION);
zabbix_log(LOG_LEVEL_INFORMATION, "**** Enabled features ****");
zabbix_log(LOG_LEVEL_INFORMATION, "SNMP monitoring: " SNMP_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPMI monitoring: " IPMI_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "WEB monitoring: " LIBCURL_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "VMware monitoring: " VMWARE_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "ODBC: " ODBC_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "SSH2 support: " SSH2_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "IPv6 support: " IPV6_FEATURE_STATUS);
zabbix_log(LOG_LEVEL_INFORMATION, "**************************");
zabbix_log(LOG_LEVEL_INFORMATION, "using configuration file: %s", CONFIG_FILE);
if (FAIL == load_modules(CONFIG_LOAD_MODULE_PATH, CONFIG_LOAD_MODULE, CONFIG_TIMEOUT, 1))
{
zabbix_log(LOG_LEVEL_CRIT, "loading modules failed, exiting...");
exit(EXIT_FAILURE);
}
zbx_free_config();
init_database_cache();
init_configuration_cache();
init_selfmon_collector();
/* initialize vmware support */
if (0 != CONFIG_VMWARE_FORKS)
zbx_vmware_init();
DBinit();
if (ZBX_DB_UNKNOWN == (db_type = zbx_db_get_database_type()))
{
zabbix_log(LOG_LEVEL_ERR, "cannot use database \"%s\": database is not a Zabbix database",
CONFIG_DBNAME);
exit(EXIT_FAILURE);
}
else if (ZBX_DB_PROXY != db_type)
{
zabbix_log(LOG_LEVEL_ERR, "cannot use database \"%s\": Zabbix proxy cannot work with a"
" Zabbix server database", CONFIG_DBNAME);
exit(EXIT_FAILURE);
}
if (SUCCEED != DBcheck_version())
exit(EXIT_FAILURE);
DBconnect(ZBX_DB_CONNECT_NORMAL);
DCsync_configuration();
DBclose();
threads_num = CONFIG_CONFSYNCER_FORKS + CONFIG_HEARTBEAT_FORKS + CONFIG_DATASENDER_FORKS
+ CONFIG_POLLER_FORKS + CONFIG_UNREACHABLE_POLLER_FORKS + CONFIG_TRAPPER_FORKS
+ CONFIG_PINGER_FORKS + CONFIG_HOUSEKEEPER_FORKS + CONFIG_HTTPPOLLER_FORKS
+ CONFIG_DISCOVERER_FORKS + CONFIG_HISTSYNCER_FORKS + CONFIG_IPMIPOLLER_FORKS
+ CONFIG_JAVAPOLLER_FORKS + CONFIG_SNMPTRAPPER_FORKS + CONFIG_SELFMON_FORKS
+ CONFIG_VMWARE_FORKS;
threads = zbx_calloc(threads, threads_num, sizeof(pid_t));
if (0 != CONFIG_TRAPPER_FORKS)
{
if (FAIL == zbx_tcp_listen(&listen_sock, CONFIG_LISTEN_IP, (unsigned short)CONFIG_LISTEN_PORT))
{
zabbix_log(LOG_LEVEL_CRIT, "listener failed: %s", zbx_tcp_strerror());
exit(EXIT_FAILURE);
}
}
zabbix_log(LOG_LEVEL_INFORMATION, "proxy #0 started [main process]");
for (i = 0; i < threads_num; i++)
{
zbx_thread_args_t thread_args;
unsigned char poller_type;
if (FAIL == get_process_info_by_thread(i + 1, &thread_args.process_type, &thread_args.process_num))
{
THIS_SHOULD_NEVER_HAPPEN;
exit(EXIT_FAILURE);
}
thread_args.server_num = i + 1;
thread_args.args = NULL;
switch (thread_args.process_type)
{
case ZBX_PROCESS_TYPE_CONFSYNCER:
threads[i] = zbx_thread_start(proxyconfig_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_HEARTBEAT:
threads[i] = zbx_thread_start(heart_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_DATASENDER:
threads[i] = zbx_thread_start(datasender_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_POLLER:
poller_type = ZBX_PROCESS_TYPE_POLLER;
thread_args.args = &poller_type;
threads[i] = zbx_thread_start(poller_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_UNREACHABLE:
poller_type = ZBX_PROCESS_TYPE_UNREACHABLE;
thread_args.args = &poller_type;
threads[i] = zbx_thread_start(poller_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_TRAPPER:
thread_args.args = &listen_sock;
threads[i] = zbx_thread_start(trapper_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_PINGER:
threads[i] = zbx_thread_start(pinger_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_HOUSEKEEPER:
threads[i] = zbx_thread_start(housekeeper_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_HTTPPOLLER:
threads[i] = zbx_thread_start(httppoller_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_DISCOVERER:
threads[i] = zbx_thread_start(discoverer_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_HISTSYNCER:
threads[i] = zbx_thread_start(dbsyncer_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_IPMIPOLLER:
poller_type = ZBX_PROCESS_TYPE_IPMIPOLLER;
thread_args.args = &poller_type;
threads[i] = zbx_thread_start(poller_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_JAVAPOLLER:
poller_type = ZBX_PROCESS_TYPE_JAVAPOLLER;
thread_args.args = &poller_type;
threads[i] = zbx_thread_start(poller_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_SNMPTRAPPER:
threads[i] = zbx_thread_start(snmptrapper_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_SELFMON:
threads[i] = zbx_thread_start(selfmon_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_VMWARE:
threads[i] = zbx_thread_start(vmware_thread, &thread_args);
break;
}
}
while (-1 == wait(&i)) /* wait for any child to exit */
{
if (EINTR != errno)
{
zabbix_log(LOG_LEVEL_ERR, "failed to wait on child processes: %s", zbx_strerror(errno));
break;
}
}
/* all exiting child processes should be caught by signal handlers */
THIS_SHOULD_NEVER_HAPPEN;
zbx_on_exit();
return SUCCEED;
}
