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|
/*
** Zabbix
** Copyright (C) 2001-2014 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "cfg.h"
#include "pid.h"
#include "db.h"
#include "dbcache.h"
#include "zbxdbupgrade.h"
#include "log.h"
#include "zbxgetopt.h"
#include "mutexs.h"
#include "sysinfo.h"
#include "zbxmodules.h"
#include "zbxserver.h"
#include "daemon.h"
#include "zbxself.h"
#include "../libs/zbxnix/control.h"
#include "alerter/alerter.h"
#include "dbsyncer/dbsyncer.h"
#include "dbconfig/dbconfig.h"
#include "discoverer/discoverer.h"
#include "httppoller/httppoller.h"
#include "httppoller/httptest.h"
#include "housekeeper/housekeeper.h"
#include "pinger/pinger.h"
#include "poller/poller.h"
#include "poller/checks_ipmi.h"
#include "timer/timer.h"
#include "trapper/trapper.h"
#include "snmptrapper/snmptrapper.h"
#include "watchdog/watchdog.h"
#include "escalator/escalator.h"
#include "proxypoller/proxypoller.h"
#include "selfmon/selfmon.h"
#include "vmware/vmware.h"
#include "valuecache.h"
#include "setproctitle.h"
const char *progname = NULL;
const char title_message[] = "Zabbix server";
const char syslog_app_name[] = "zabbix_server";
const char usage_message[] = "[-hV] [-c <file>] [-R <option>]";
const char *help_message[] = {
"Options:",
" -c --config <file> Absolute path to the configuration file",
" -R --runtime-control <option> Perform administrative functions",
"",
"Runtime control options:",
" " ZBX_CONFIG_CACHE_RELOAD " Reload configuration cache",
" " ZBX_LOG_LEVEL_INCREASE "=<target> Increase log level, affect all processes if target is not specified",
" " ZBX_LOG_LEVEL_DECREASE "=<target> Decrease log level, affect all processes if target is not specified",
"",
"Log level control targets:",
" <pid> Process identifier",
" <process type> All processes of specified type (e.g. poller)",
" <process type,N> Process type and number (e.g. poller,3)",
"",
"Other options:",
" -h --help Display help information",
" -V --version Display version number",
NULL /* end of text */
};
/* COMMAND LINE OPTIONS */
/* long options */
static struct zbx_option longopts[] =
{
{"config", 1, NULL, 'c'},
{"runtime-control", 1, NULL, 'R'},
{"help", 0, NULL, 'h'},
{"version", 0, NULL, 'V'},
{NULL}
};
/* short options */
static char shortopts[] = "c:n:hVR:";
/* end of COMMAND LINE OPTIONS */
int threads_num = 0;
pid_t *threads = NULL;
unsigned char daemon_type = ZBX_DAEMON_TYPE_SERVER;
unsigned char process_type = ZBX_PROCESS_TYPE_UNKNOWN;
int process_num = 0;
int server_num = 0;
int CONFIG_ALERTER_FORKS = 1;
int CONFIG_DISCOVERER_FORKS = 1;
int CONFIG_HOUSEKEEPER_FORKS = 1;
int CONFIG_PINGER_FORKS = 1;
int CONFIG_POLLER_FORKS = 5;
int CONFIG_UNREACHABLE_POLLER_FORKS = 1;
int CONFIG_HTTPPOLLER_FORKS = 1;
int CONFIG_IPMIPOLLER_FORKS = 0;
int CONFIG_TIMER_FORKS = 1;
int CONFIG_TRAPPER_FORKS = 5;
int CONFIG_SNMPTRAPPER_FORKS = 0;
int CONFIG_JAVAPOLLER_FORKS = 0;
int CONFIG_ESCALATOR_FORKS = 1;
int CONFIG_SELFMON_FORKS = 1;
int CONFIG_WATCHDOG_FORKS = 1;
int CONFIG_DATASENDER_FORKS = 0;
int CONFIG_HEARTBEAT_FORKS = 0;
int CONFIG_COLLECTOR_FORKS = 0;
int CONFIG_ACTIVE_FORKS = 0;
int CONFIG_PASSIVE_FORKS = 0;
int CONFIG_LISTEN_PORT = ZBX_DEFAULT_SERVER_PORT;
char *CONFIG_LISTEN_IP = NULL;
char *CONFIG_SOURCE_IP = NULL;
int CONFIG_TRAPPER_TIMEOUT = 300;
int CONFIG_HOUSEKEEPING_FREQUENCY = 1;
int CONFIG_MAX_HOUSEKEEPER_DELETE = 500; /* applies for every separate field value */
int CONFIG_SENDER_FREQUENCY = 30;
int CONFIG_HISTSYNCER_FORKS = 4;
int CONFIG_HISTSYNCER_FREQUENCY = 5;
int CONFIG_CONFSYNCER_FORKS = 1;
int CONFIG_CONFSYNCER_FREQUENCY = 60;
int CONFIG_VMWARE_FORKS = 0;
int CONFIG_VMWARE_FREQUENCY = 60;
zbx_uint64_t CONFIG_CONF_CACHE_SIZE = 8 * ZBX_MEBIBYTE;
zbx_uint64_t CONFIG_HISTORY_CACHE_SIZE = 8 * ZBX_MEBIBYTE;
zbx_uint64_t CONFIG_TRENDS_CACHE_SIZE = 4 * ZBX_MEBIBYTE;
zbx_uint64_t CONFIG_TEXT_CACHE_SIZE = 16 * ZBX_MEBIBYTE;
zbx_uint64_t CONFIG_VALUE_CACHE_SIZE = 8 * ZBX_MEBIBYTE;
zbx_uint64_t CONFIG_VMWARE_CACHE_SIZE = 8 * ZBX_MEBIBYTE;
int CONFIG_UNREACHABLE_PERIOD = 45;
int CONFIG_UNREACHABLE_DELAY = 15;
int CONFIG_UNAVAILABLE_DELAY = 60;
int CONFIG_LOG_LEVEL = LOG_LEVEL_WARNING;
char *CONFIG_ALERT_SCRIPTS_PATH = NULL;
char *CONFIG_EXTERNALSCRIPTS = NULL;
char *CONFIG_TMPDIR = NULL;
char *CONFIG_FPING_LOCATION = NULL;
#ifdef HAVE_IPV6
char *CONFIG_FPING6_LOCATION = NULL;
#endif
char *CONFIG_DBHOST = NULL;
char *CONFIG_DBNAME = NULL;
char *CONFIG_DBSCHEMA = NULL;
char *CONFIG_DBUSER = NULL;
char *CONFIG_DBPASSWORD = NULL;
char *CONFIG_DBSOCKET = NULL;
int CONFIG_DBPORT = 0;
int CONFIG_ENABLE_REMOTE_COMMANDS = 0;
int CONFIG_LOG_REMOTE_COMMANDS = 0;
int CONFIG_UNSAFE_USER_PARAMETERS = 0;
char *CONFIG_SNMPTRAP_FILE = NULL;
char *CONFIG_JAVA_GATEWAY = NULL;
int CONFIG_JAVA_GATEWAY_PORT = ZBX_DEFAULT_GATEWAY_PORT;
char *CONFIG_SSH_KEY_LOCATION = NULL;
int CONFIG_LOG_SLOW_QUERIES = 0; /* ms; 0 - disable */
int CONFIG_SERVER_STARTUP_TIME = 0; /* zabbix server startup time */
int CONFIG_PROXYPOLLER_FORKS = 1; /* parameters for passive proxies */
/* how often zabbix server sends configuration data to proxy, in seconds */
int CONFIG_PROXYCONFIG_FREQUENCY = 3600; /* 1h */
int CONFIG_PROXYDATA_FREQUENCY = 1; /* 1s */
char *CONFIG_LOAD_MODULE_PATH = NULL;
char **CONFIG_LOAD_MODULE = NULL;
char *CONFIG_USER = NULL;
/* web monitoring */
#ifdef HAVE_LIBCURL
char *CONFIG_SSL_CA_LOCATION = NULL;
char *CONFIG_SSL_CERT_LOCATION = NULL;
char *CONFIG_SSL_KEY_LOCATION = NULL;
#endif
int get_process_info_by_thread(int server_num, unsigned char *process_type, int *process_num)
{
int server_count = 0;
if (0 == server_num)
{
/* fail if the main process is queried */
return FAIL;
}
else if (server_num <= (server_count += CONFIG_CONFSYNCER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_CONFSYNCER;
*process_num = server_num - server_count + CONFIG_CONFSYNCER_FORKS;
}
else if (server_num <= (server_count += CONFIG_WATCHDOG_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_WATCHDOG;
*process_num = server_num - server_count + CONFIG_WATCHDOG_FORKS;
}
else if (server_num <= (server_count += CONFIG_POLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_POLLER;
*process_num = server_num - server_count + CONFIG_POLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_UNREACHABLE_POLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_UNREACHABLE;
*process_num = server_num - server_count + CONFIG_UNREACHABLE_POLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_TRAPPER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_TRAPPER;
*process_num = server_num - server_count + CONFIG_TRAPPER_FORKS;
}
else if (server_num <= (server_count += CONFIG_PINGER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_PINGER;
*process_num = server_num - server_count + CONFIG_PINGER_FORKS;
}
else if (server_num <= (server_count += CONFIG_ALERTER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_ALERTER;
*process_num = server_num - server_count + CONFIG_ALERTER_FORKS;
}
else if (server_num <= (server_count += CONFIG_HOUSEKEEPER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_HOUSEKEEPER;
*process_num = server_num - server_count + CONFIG_HOUSEKEEPER_FORKS;
}
else if (server_num <= (server_count += CONFIG_TIMER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_TIMER;
*process_num = server_num - server_count + CONFIG_TIMER_FORKS;
}
else if (server_num <= (server_count += CONFIG_HTTPPOLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_HTTPPOLLER;
*process_num = server_num - server_count + CONFIG_HTTPPOLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_DISCOVERER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_DISCOVERER;
*process_num = server_num - server_count + CONFIG_DISCOVERER_FORKS;
}
else if (server_num <= (server_count += CONFIG_HISTSYNCER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_HISTSYNCER;
*process_num = server_num - server_count + CONFIG_HISTSYNCER_FORKS;
}
else if (server_num <= (server_count += CONFIG_ESCALATOR_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_ESCALATOR;
*process_num = server_num - server_count + CONFIG_ESCALATOR_FORKS;
}
else if (server_num <= (server_count += CONFIG_IPMIPOLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_SNMPTRAPPER;
*process_num = server_num - server_count + CONFIG_IPMIPOLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_JAVAPOLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_JAVAPOLLER;
*process_num = server_num - server_count + CONFIG_JAVAPOLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_SNMPTRAPPER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_SNMPTRAPPER;
*process_num = server_num - server_count + CONFIG_SNMPTRAPPER_FORKS;
}
else if (server_num <= (server_count += CONFIG_PROXYPOLLER_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_PROXYPOLLER;
*process_num = server_num - server_count + CONFIG_PROXYPOLLER_FORKS;
}
else if (server_num <= (server_count += CONFIG_SELFMON_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_SELFMON;
*process_num = server_num - server_count + CONFIG_SELFMON_FORKS;
}
else if (server_num <= (server_count += CONFIG_VMWARE_FORKS))
{
*process_type = ZBX_PROCESS_TYPE_VMWARE;
*process_num = server_num - server_count + CONFIG_VMWARE_FORKS;
}
else
{
return FAIL;
}
return SUCCEED;
}
/******************************************************************************
* *
* Function: zbx_set_defaults *
* *
* Purpose: set configuration defaults *
* *
* Author: Vladimir Levijev *
* *
******************************************************************************/
static void zbx_set_defaults()
{
CONFIG_SERVER_STARTUP_TIME = time(NULL);
if (NULL == CONFIG_DBHOST)
CONFIG_DBHOST = zbx_strdup(CONFIG_DBHOST, "localhost");
if (NULL == CONFIG_SNMPTRAP_FILE)
CONFIG_SNMPTRAP_FILE = zbx_strdup(CONFIG_SNMPTRAP_FILE, "/tmp/zabbix_traps.tmp");
if (NULL == CONFIG_PID_FILE)
CONFIG_PID_FILE = zbx_strdup(CONFIG_PID_FILE, "/tmp/zabbix_server.pid");
if (NULL == CONFIG_ALERT_SCRIPTS_PATH)
CONFIG_ALERT_SCRIPTS_PATH = zbx_strdup(CONFIG_ALERT_SCRIPTS_PATH, DATADIR "/zabbix/alertscripts");
if (NULL == CONFIG_LOAD_MODULE_PATH)
CONFIG_LOAD_MODULE_PATH = zbx_strdup(CONFIG_LOAD_MODULE_PATH, LIBDIR "/modules");
if (NULL == CONFIG_TMPDIR)
CONFIG_TMPDIR = zbx_strdup(CONFIG_TMPDIR, "/tmp");
if (NULL == CONFIG_FPING_LOCATION)
CONFIG_FPING_LOCATION = zbx_strdup(CONFIG_FPING_LOCATION, "/usr/sbin/fping");
#ifdef HAVE_IPV6
if (NULL == CONFIG_FPING6_LOCATION)
CONFIG_FPING6_LOCATION = zbx_strdup(CONFIG_FPING6_LOCATION, "/usr/sbin/fping6");
#endif
if (NULL == CONFIG_EXTERNALSCRIPTS)
CONFIG_EXTERNALSCRIPTS = zbx_strdup(CONFIG_EXTERNALSCRIPTS, DATADIR "/zabbix/externalscripts");
#ifdef HAVE_LIBCURL
if (NULL == CONFIG_SSL_CERT_LOCATION)
CONFIG_SSL_CERT_LOCATION = zbx_strdup(CONFIG_SSL_CERT_LOCATION, DATADIR "/zabbix/ssl/certs");
if (NULL == CONFIG_SSL_KEY_LOCATION)
CONFIG_SSL_KEY_LOCATION = zbx_strdup(CONFIG_SSL_KEY_LOCATION, DATADIR "/zabbix/ssl/keys");
#endif
#ifdef HAVE_SQLITE3
CONFIG_MAX_HOUSEKEEPER_DELETE = 0;
#endif
}
/******************************************************************************
* *
* Function: zbx_validate_config *
* *
* Purpose: validate configuration parameters *
* *
* Author: Vladimir Levijev *
* *
******************************************************************************/
static void zbx_validate_config(void)
{
if (0 == CONFIG_UNREACHABLE_POLLER_FORKS && 0 != CONFIG_POLLER_FORKS + CONFIG_IPMIPOLLER_FORKS +
CONFIG_JAVAPOLLER_FORKS)
{
zabbix_log(LOG_LEVEL_CRIT, "\"StartPollersUnreachable\" configuration parameter must not be 0"
" if regular, IPMI or Java pollers are started");
exit(EXIT_FAILURE);
}
if ((NULL == CONFIG_JAVA_GATEWAY || '\0' == *CONFIG_JAVA_GATEWAY) && CONFIG_JAVAPOLLER_FORKS > 0)
{
zabbix_log(LOG_LEVEL_CRIT, "\"JavaGateway\" configuration parameter is not specified or empty");
exit(EXIT_FAILURE);
}
if (0 != CONFIG_VALUE_CACHE_SIZE && 128 * ZBX_KIBIBYTE > CONFIG_VALUE_CACHE_SIZE)
{
zabbix_log(LOG_LEVEL_CRIT, "\"ValueCacheSize\" configuration parameter must be either 0"
" or greater than 128KB");
exit(EXIT_FAILURE);
}
if (NULL != CONFIG_SOURCE_IP && ('\0' == *CONFIG_SOURCE_IP || SUCCEED != is_ip(CONFIG_SOURCE_IP)))
{
zabbix_log(LOG_LEVEL_CRIT, "invalid \"SourceIP\" configuration parameter: '%s'", CONFIG_SOURCE_IP);
exit(EXIT_FAILURE);
}
#if !defined(HAVE_LIBXML2) || !defined(HAVE_LIBCURL)
if (0 != CONFIG_VMWARE_FORKS)
{
zabbix_log(LOG_LEVEL_CRIT, "cannot start vmware collector because Zabbix server is built without VMware"
" support");
exit(EXIT_FAILURE);
}
#endif
}
/******************************************************************************
* *
* Function: zbx_load_config *
* *
* Purpose: parse config file and update configuration parameters *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: will terminate process if parsing fails *
* *
******************************************************************************/
static void zbx_load_config()
{
static struct cfg_line cfg[] =
{
/* PARAMETER, VAR, TYPE,
MANDATORY, MIN, MAX */
{"StartDBSyncers", &CONFIG_HISTSYNCER_FORKS, TYPE_INT,
PARM_OPT, 1, 100},
{"StartDiscoverers", &CONFIG_DISCOVERER_FORKS, TYPE_INT,
PARM_OPT, 0, 250},
{"StartHTTPPollers", &CONFIG_HTTPPOLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartPingers", &CONFIG_PINGER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartPollers", &CONFIG_POLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartPollersUnreachable", &CONFIG_UNREACHABLE_POLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartIPMIPollers", &CONFIG_IPMIPOLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartTimers", &CONFIG_TIMER_FORKS, TYPE_INT,
PARM_OPT, 1, 1000},
{"StartTrappers", &CONFIG_TRAPPER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"StartJavaPollers", &CONFIG_JAVAPOLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 1000},
{"JavaGateway", &CONFIG_JAVA_GATEWAY, TYPE_STRING,
PARM_OPT, 0, 0},
{"JavaGatewayPort", &CONFIG_JAVA_GATEWAY_PORT, TYPE_INT,
PARM_OPT, 1024, 32767},
{"SNMPTrapperFile", &CONFIG_SNMPTRAP_FILE, TYPE_STRING,
PARM_OPT, 0, 0},
{"StartSNMPTrapper", &CONFIG_SNMPTRAPPER_FORKS, TYPE_INT,
PARM_OPT, 0, 1},
{"CacheSize", &CONFIG_CONF_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 128 * ZBX_KIBIBYTE, __UINT64_C(8) * ZBX_GIBIBYTE},
{"HistoryCacheSize", &CONFIG_HISTORY_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 128 * ZBX_KIBIBYTE, __UINT64_C(2) * ZBX_GIBIBYTE},
{"TrendCacheSize", &CONFIG_TRENDS_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 128 * ZBX_KIBIBYTE, __UINT64_C(2) * ZBX_GIBIBYTE},
{"HistoryTextCacheSize", &CONFIG_TEXT_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 128 * ZBX_KIBIBYTE, __UINT64_C(2) * ZBX_GIBIBYTE},
{"ValueCacheSize", &CONFIG_VALUE_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 0, __UINT64_C(64) * ZBX_GIBIBYTE},
{"CacheUpdateFrequency", &CONFIG_CONFSYNCER_FREQUENCY, TYPE_INT,
PARM_OPT, 1, SEC_PER_HOUR},
{"HousekeepingFrequency", &CONFIG_HOUSEKEEPING_FREQUENCY, TYPE_INT,
PARM_OPT, 1, 24},
{"MaxHousekeeperDelete", &CONFIG_MAX_HOUSEKEEPER_DELETE, TYPE_INT,
PARM_OPT, 0, 1000000},
{"SenderFrequency", &CONFIG_SENDER_FREQUENCY, TYPE_INT,
PARM_OPT, 5, SEC_PER_HOUR},
{"TmpDir", &CONFIG_TMPDIR, TYPE_STRING,
PARM_OPT, 0, 0},
{"FpingLocation", &CONFIG_FPING_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
#ifdef HAVE_IPV6
{"Fping6Location", &CONFIG_FPING6_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
#endif
{"Timeout", &CONFIG_TIMEOUT, TYPE_INT,
PARM_OPT, 1, 30},
{"TrapperTimeout", &CONFIG_TRAPPER_TIMEOUT, TYPE_INT,
PARM_OPT, 1, 300},
{"UnreachablePeriod", &CONFIG_UNREACHABLE_PERIOD, TYPE_INT,
PARM_OPT, 1, SEC_PER_HOUR},
{"UnreachableDelay", &CONFIG_UNREACHABLE_DELAY, TYPE_INT,
PARM_OPT, 1, SEC_PER_HOUR},
{"UnavailableDelay", &CONFIG_UNAVAILABLE_DELAY, TYPE_INT,
PARM_OPT, 1, SEC_PER_HOUR},
{"ListenIP", &CONFIG_LISTEN_IP, TYPE_STRING_LIST,
PARM_OPT, 0, 0},
{"ListenPort", &CONFIG_LISTEN_PORT, TYPE_INT,
PARM_OPT, 1024, 32767},
{"SourceIP", &CONFIG_SOURCE_IP, TYPE_STRING,
PARM_OPT, 0, 0},
{"DebugLevel", &CONFIG_LOG_LEVEL, TYPE_INT,
PARM_OPT, 0, 4},
{"PidFile", &CONFIG_PID_FILE, TYPE_STRING,
PARM_OPT, 0, 0},
{"LogFile", &CONFIG_LOG_FILE, TYPE_STRING,
PARM_OPT, 0, 0},
{"LogFileSize", &CONFIG_LOG_FILE_SIZE, TYPE_INT,
PARM_OPT, 0, 1024},
{"AlertScriptsPath", &CONFIG_ALERT_SCRIPTS_PATH, TYPE_STRING,
PARM_OPT, 0, 0},
{"ExternalScripts", &CONFIG_EXTERNALSCRIPTS, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBHost", &CONFIG_DBHOST, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBName", &CONFIG_DBNAME, TYPE_STRING,
PARM_MAND, 0, 0},
{"DBSchema", &CONFIG_DBSCHEMA, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBUser", &CONFIG_DBUSER, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBPassword", &CONFIG_DBPASSWORD, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBSocket", &CONFIG_DBSOCKET, TYPE_STRING,
PARM_OPT, 0, 0},
{"DBPort", &CONFIG_DBPORT, TYPE_INT,
PARM_OPT, 1024, 65535},
{"SSHKeyLocation", &CONFIG_SSH_KEY_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
{"LogSlowQueries", &CONFIG_LOG_SLOW_QUERIES, TYPE_INT,
PARM_OPT, 0, 3600000},
{"StartProxyPollers", &CONFIG_PROXYPOLLER_FORKS, TYPE_INT,
PARM_OPT, 0, 250},
{"ProxyConfigFrequency", &CONFIG_PROXYCONFIG_FREQUENCY, TYPE_INT,
PARM_OPT, 1, SEC_PER_WEEK},
{"ProxyDataFrequency", &CONFIG_PROXYDATA_FREQUENCY, TYPE_INT,
PARM_OPT, 1, SEC_PER_HOUR},
{"LoadModulePath", &CONFIG_LOAD_MODULE_PATH, TYPE_STRING,
PARM_OPT, 0, 0},
{"LoadModule", &CONFIG_LOAD_MODULE, TYPE_MULTISTRING,
PARM_OPT, 0, 0},
{"StartVMwareCollectors", &CONFIG_VMWARE_FORKS, TYPE_INT,
PARM_OPT, 0, 250},
{"VMwareFrequency", &CONFIG_VMWARE_FREQUENCY, TYPE_INT,
PARM_OPT, 10, SEC_PER_DAY},
{"VMwareCacheSize", &CONFIG_VMWARE_CACHE_SIZE, TYPE_UINT64,
PARM_OPT, 256 * ZBX_KIBIBYTE, __UINT64_C(2) * ZBX_GIBIBYTE},
{"AllowRoot", &CONFIG_ALLOW_ROOT, TYPE_INT,
PARM_OPT, 0, 1},
{"User", &CONFIG_USER, TYPE_STRING,
PARM_OPT, 0, 0},
#ifdef HAVE_LIBCURL
{"SSLCALocation", &CONFIG_SSL_CA_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
{"SSLCertLocation", &CONFIG_SSL_CERT_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
{"SSLKeyLocation", &CONFIG_SSL_KEY_LOCATION, TYPE_STRING,
PARM_OPT, 0, 0},
#endif
{NULL}
};
/* initialize multistrings */
zbx_strarr_init(&CONFIG_LOAD_MODULE);
parse_cfg_file(CONFIG_FILE, cfg, ZBX_CFG_FILE_REQUIRED, ZBX_CFG_STRICT);
zbx_set_defaults();
zbx_validate_config();
}
#ifdef HAVE_SIGQUEUE
void zbx_sigusr_handler(int flags)
{
switch (ZBX_RTC_GET_MSG(flags))
{
case ZBX_RTC_CONFIG_CACHE_RELOAD:
zabbix_log(LOG_LEVEL_WARNING, "forced reloading of the configuration cache");
zbx_wakeup();
break;
default:
break;
}
}
#endif
/******************************************************************************
* *
* Function: zbx_free_config *
* *
* Purpose: free configuration memory *
* *
******************************************************************************/
static void zbx_free_config()
{
zbx_strarr_free(CONFIG_LOAD_MODULE);
}
/******************************************************************************
* *
* Function: main *
* *
* Purpose: executes server processes *
* *
* Author: Eugene Grigorjev *
* *
******************************************************************************/
int main(int argc, char **argv)
{
ZBX_TASK_EX t = {ZBX_TASK_START};
char ch = '\0';
int offset;
#if defined(PS_OVERWRITE_ARGV) || defined(PS_PSTAT_ARGV)
argv = setproctitle_save_env(argc, argv);
#endif
progname = get_program_name(argv[0]);
/* parse the command-line */
while ((char)EOF != (ch = (char)zbx_getopt_long(argc, argv, shortopts, longopts, NULL)))
{
switch (ch)
{
case 'c':
CONFIG_FILE = zbx_strdup(CONFIG_FILE, zbx_optarg);
break;
case 'R':
if (0 == strcmp(zbx_optarg, ZBX_CONFIG_CACHE_RELOAD))
{
t.flags = ZBX_RTC_MAKE_MESSAGE(ZBX_RTC_CONFIG_CACHE_RELOAD, 0, 0);
}
else if (0 == strncmp(zbx_optarg, ZBX_LOG_LEVEL_INCREASE,
offset = strlen(ZBX_LOG_LEVEL_INCREASE)))
{
if (SUCCEED != get_log_level_message(zbx_optarg + offset,
ZBX_RTC_LOG_LEVEL_INCREASE, &t.flags))
{
exit(EXIT_FAILURE);
}
}
else if (0 == strncmp(zbx_optarg, ZBX_LOG_LEVEL_DECREASE,
offset = strlen(ZBX_LOG_LEVEL_DECREASE)))
{
if (SUCCEED != get_log_level_message(zbx_optarg + offset,
ZBX_RTC_LOG_LEVEL_DECREASE, &t.flags))
{
exit(EXIT_FAILURE);
}
}
else
{
zbx_error("invalid runtime control option: %s", zbx_optarg);
exit(EXIT_FAILURE);
}
t.task = ZBX_TASK_RUNTIME_CONTROL;
break;
case 'h':
help();
exit(EXIT_SUCCESS);
break;
case 'V':
version();
exit(EXIT_SUCCESS);
break;
default:
usage();
exit(EXIT_FAILURE);
break;
}
}
if (NULL == CONFIG_FILE)
CONFIG_FILE = zbx_strdup(CONFIG_FILE, SYSCONFDIR "/zabbix_server.conf");
/* required for simple checks */
init_metrics();
zbx_load_config();
if (ZBX_TASK_RUNTIME_CONTROL == t.task)
{
exit(SUCCEED == zbx_sigusr_send(t.flags) ? EXIT_SUCCESS : EXIT_FAILURE);
}
#ifdef HAVE_OPENIPMI
init_ipmi_handler();
#endif
return daemon_start(CONFIG_ALLOW_ROOT, CONFIG_USER);
}
int MAIN_ZABBIX_ENTRY()
{
zbx_sock_t listen_sock;
int i;
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, "******************************");
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);
DCload_config();
/* make initial configuration sync before worker processes are forked */
DCsync_configuration();
DBclose();
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_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(EXIT_FAILURE);
}
}
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(dbconfig_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_WATCHDOG:
threads[i] = zbx_thread_start(watchdog_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_ALERTER:
threads[i] = zbx_thread_start(alerter_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_HOUSEKEEPER:
threads[i] = zbx_thread_start(housekeeper_thread, &thread_args);
break;
case ZBX_PROCESS_TYPE_TIMER:
threads[i] = zbx_thread_start(timer_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_ESCALATOR:
threads[i] = zbx_thread_start(escalator_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_PROXYPOLLER:
threads[i] = zbx_thread_start(proxypoller_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;
}
void zbx_on_exit()
{
zabbix_log(LOG_LEVEL_DEBUG, "zbx_on_exit() called");
if (SUCCEED == DBtxn_ongoing())
DBrollback();
if (NULL != threads)
{
int i;
sigset_t set;
/* ignore SIGCHLD signals in order for zbx_sleep() to work */
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigprocmask(SIG_BLOCK, &set, NULL);
for (i = 0; i < threads_num; i++)
{
if (threads[i])
{
kill(threads[i], SIGTERM);
threads[i] = ZBX_THREAD_HANDLE_NULL;
}
}
zbx_free(threads);
}
free_metrics();
zbx_sleep(2); /* wait for all child processes to exit */
DBconnect(ZBX_DB_CONNECT_EXIT);
free_database_cache();
DBclose();
free_configuration_cache();
/* free history value cache */
zbx_vc_destroy();
zbx_destroy_itservices_lock();
#ifdef HAVE_OPENIPMI
free_ipmi_handler();
#endif
#ifdef HAVE_SQLITE3
zbx_remove_sqlite3_mutex();
#endif
/* free vmware support */
if (0 != CONFIG_VMWARE_FORKS)
zbx_vmware_destroy();
free_selfmon_collector();
unload_modules();
zabbix_log(LOG_LEVEL_INFORMATION, "Zabbix Server stopped. Zabbix %s (revision %s).",
ZABBIX_VERSION, ZABBIX_REVISION);
zabbix_close_log();
#if defined(PS_OVERWRITE_ARGV)
setproctitle_free_env();
#endif
exit(EXIT_SUCCESS);
}
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