/******************************************************************************
* *
* Function: get_proxy_id *
* *
* Purpose: *
* *
* Parameters: *
* *
* Return value: SUCCEED - processed successfully *
* FAIL - an error occurred *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int get_proxy_id(struct zbx_json_parse *jp, zbx_uint64_t *hostid)
{
DB_RESULT result;
DB_ROW row;
char host[HOST_HOST_LEN_MAX], host_esc[MAX_STRING_LEN];
int res = FAIL;
if (SUCCEED == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_HOST, host, sizeof(host))) {
DBescape_string(host, host_esc, sizeof(host_esc));
result = DBselect("select hostid from hosts where host='%s'"
" and status in (%d)" DB_NODE,
host_esc,
HOST_STATUS_PROXY,
DBnode_local("hostid"));
if (NULL != (row = DBfetch(result)) && FAIL == DBis_null(row[0])) {
*hostid = zbx_atoui64(row[0]);
res = SUCCEED;
} else
zabbix_log(LOG_LEVEL_WARNING, "Unknown proxy \"%s\"",
host);
DBfree_result(result);
} else {
zabbix_log(LOG_LEVEL_WARNING, "Incorrect data. %s",
zbx_json_strerror());
zabbix_syslog("Incorrect data. %s",
zbx_json_strerror());
}
return res;
}
/******************************************************************************
* *
* Function: update_triggers *
* *
* Purpose: re-calculate and updates values of triggers related to the item *
* *
* Parameters: itemid - item to update trigger values for *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
void update_triggers(zbx_uint64_t itemid)
{
char *exp;
char error[MAX_STRING_LEN];
int exp_value;
DB_TRIGGER trigger;
DB_RESULT result;
DB_ROW row;
zabbix_log( LOG_LEVEL_DEBUG, "In update_triggers [itemid:" ZBX_FS_UI64 "]",
itemid);
result = DBselect("select distinct t.triggerid,t.expression,t.description,t.url,t.comments,t.status,t.value,t.priority,t.type from triggers t,functions f,items i where i.status<>%d and i.itemid=f.itemid and t.status=%d and f.triggerid=t.triggerid and f.itemid=" ZBX_FS_UI64,
ITEM_STATUS_NOTSUPPORTED,
TRIGGER_STATUS_ENABLED,
itemid);
while((row=DBfetch(result)))
{
ZBX_STR2UINT64(trigger.triggerid,row[0]);
strscpy(trigger.expression,row[1]);
strscpy(trigger.description,row[2]);
trigger.url = row[3];
trigger.comments = row[4];
trigger.status = atoi(row[5]);
trigger.value = atoi(row[6]);
trigger.priority = atoi(row[7]);
trigger.type = atoi(row[8]);
exp = strdup(trigger.expression);
if( evaluate_expression(&exp_value, &exp, &trigger, error, sizeof(error)) != 0 )
{
zabbix_log(LOG_LEVEL_WARNING, "Expression [%s] for item [" ZBX_FS_UI64 "][%s] cannot be evaluated: %s",
trigger.expression,
itemid,
zbx_host_key_string(itemid),
error);
zabbix_syslog("Expression [%s] for item [" ZBX_FS_UI64 "][%s] cannot be evaluated: %s",
trigger.expression,
itemid,
zbx_host_key_string(itemid),
error);
/* DBupdate_trigger_value(&trigger, exp_value, time(NULL), error);*//* We shouldn't update triggervalue if expressions failed */
}
else
{
DBupdate_trigger_value(&trigger, exp_value, time(NULL), NULL);
}
zbx_free(exp);
}
DBfree_result(result);
zabbix_log( LOG_LEVEL_DEBUG, "End update_triggers [" ZBX_FS_UI64 "]",
itemid);
}
/******************************************************************************
* *
* Function: proxy_update_item *
* *
* Purpose: update item info after new value is received *
* *
* Parameters: item - item data *
* value - new value of the item *
* now - current timestamp *
* *
* Author: Alexei Vladishev, Eugene Grigorjev *
* *
* Comments: *
* *
******************************************************************************/
static void proxy_update_item(DB_ITEM *item, AGENT_RESULT *value, time_t now)
{
zabbix_log( LOG_LEVEL_DEBUG, "In proxy_update_item()");
item->nextcheck = calculate_item_nextcheck(item->itemid, item->type, item->delay, item->delay_flex, now);
if (item->value_type == ITEM_VALUE_TYPE_LOG) {
DBexecute("update items set nextcheck=%d,lastlogsize=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
item->lastlogsize,
item->itemid);
} else {
DBexecute("update items set nextcheck=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
item->itemid);
}
item->prevvalue_str = item->lastvalue_str;
item->prevvalue_dbl = item->lastvalue_dbl;
item->prevvalue_uint64 = item->lastvalue_uint64;
item->prevvalue_null = item->lastvalue_null;
item->lastvalue_uint64 = value->ui64;
item->lastvalue_dbl = value->dbl;
item->lastvalue_str = value->str;
item->lastvalue_null = 0;
if (item->status == ITEM_STATUS_NOTSUPPORTED) {
zabbix_log( LOG_LEVEL_WARNING, "Parameter [%s] became supported by agent on host [%s]",
item->key,
item->host_name);
zabbix_syslog("Parameter [%s] became supported by agent on host [%s]",
item->key,
item->host_name);
item->status = ITEM_STATUS_ACTIVE;
DBexecute("update items set status=%d where itemid=" ZBX_FS_UI64,
ITEM_STATUS_ACTIVE,
item->itemid);
}
/* Required for nodata() */
item->lastclock = now;
zabbix_log( LOG_LEVEL_DEBUG, "End proxy_update_item()");
}
/******************************************************************************
* *
* Function: process_proxy_heartbeat *
* *
* Purpose: process heartbeat sent by proxy servers *
* *
* Parameters: *
* *
* Return value: SUCCEED - processed successfully *
* FAIL - an error occured *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int process_proxy_heartbeat(zbx_sock_t *sock, struct zbx_json_parse *jp)
{
zbx_uint64_t proxy_hostid;
zabbix_log(LOG_LEVEL_DEBUG, "In process_proxy_heartbeat()");
if (FAIL == get_proxy_id(jp, &proxy_hostid))
return FAIL;
update_proxy_lastaccess(proxy_hostid);
if (send_result(sock, SUCCEED, NULL) != SUCCEED) {
zabbix_log( LOG_LEVEL_WARNING, "Error sending result back");
zabbix_syslog("Trapper: error sending result back");
}
return SUCCEED;
}
/******************************************************************************
* *
* Function: do_ping *
* *
* Purpose: ping hosts listed in the host files *
* *
* Parameters: *
* *
* Return value: => 0 - successfully processed items *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: use external binary 'fping' to avoid superuser priviledges *
* *
******************************************************************************/
int do_ping(ZBX_FPING_HOST *hosts, int hosts_count, char *error, int max_error_len)
{
int res;
zabbix_log(LOG_LEVEL_DEBUG, "In do_ping(hosts_count:%d)",
hosts_count);
if (NOTSUPPORTED == (res = process_ping(hosts, hosts_count, error, max_error_len)))
{
zabbix_log(LOG_LEVEL_ERR, "%s", error);
zabbix_syslog("%s", error);
}
zabbix_log(LOG_LEVEL_DEBUG, "End of do_ping():%s",
zbx_result_string(res));
return res;
}
/******************************************************************************
* *
* Function: do_ping *
* *
* Purpose: ping hosts listed in the host files *
* *
* Parameters: *
* *
* Return value: SUCCEED - successfully processed hosts *
* NOTSUPPORTED - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: use external binary 'fping' to avoid superuser privileges *
* *
******************************************************************************/
int do_ping(ZBX_FPING_HOST *hosts, int hosts_count, int count, int interval, int size, int timeout, char *error, int max_error_len)
{
const char *__function_name = "do_ping";
int res;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() hosts_count:%d", __function_name, hosts_count);
if (NOTSUPPORTED == (res = process_ping(hosts, hosts_count, count, interval, size, timeout, error, max_error_len)))
{
zabbix_log(LOG_LEVEL_ERR, "%s", error);
zabbix_syslog("%s", error);
}
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
static void add_object_msg(int source, zbx_uint64_t triggerid, DB_OPERATION *operation, ZBX_USER_MSG **user_msg,
char *subject, char *message)
{
DB_RESULT result;
DB_ROW row;
zbx_uint64_t mediatypeid = 0, userid;
result = DBselect("select mediatypeid from opmediatypes where operationid=" ZBX_FS_UI64,
operation->operationid);
if (NULL != (row = DBfetch(result)))
ZBX_STR2UINT64(mediatypeid, row[0]);
DBfree_result(result);
switch (operation->object) {
case OPERATION_OBJECT_USER:
add_user_msg(source, operation->objectid, mediatypeid, triggerid, user_msg, subject, message);
break;
case OPERATION_OBJECT_GROUP:
result = DBselect("select ug.userid from users_groups ug,usrgrp g"
" WHERE ug.usrgrpid=" ZBX_FS_UI64 " AND g.usrgrpid=ug.usrgrpid AND g.users_status=%d",
operation->objectid,
GROUP_STATUS_ACTIVE);
while (NULL != (row = DBfetch(result)))
{
ZBX_STR2UINT64(userid, row[0]);
add_user_msg(source, userid, mediatypeid, triggerid, user_msg, subject, message);
}
DBfree_result(result);
break;
default:
zabbix_log(LOG_LEVEL_WARNING, "Unknown object type [%d] for operationid [" ZBX_FS_UI64 "]",
operation->object,
operation->operationid);
zabbix_syslog("Unknown object type [%d] for operationid [" ZBX_FS_UI64 "]",
operation->object,
operation->operationid);
break;
}
}
static void deactivate_host(DC_ITEM *item, int now, const char *error)
{
char sql[MAX_STRING_LEN], *error_esc, error_msg[MAX_STRING_LEN];
int offset = 0, *errors_from, *disable_until;
unsigned char *available;
const char *fld_errors_from, *fld_available, *fld_disable_until, *fld_error, *type;
switch (item->type)
{
case ITEM_TYPE_ZABBIX:
errors_from = &item->host.errors_from;
available = &item->host.available;
disable_until = &item->host.disable_until;
fld_errors_from = "errors_from";
fld_available = "available";
fld_disable_until = "disable_until";
fld_error = "error";
type = "Zabbix";
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
errors_from = &item->host.snmp_errors_from;
available = &item->host.snmp_available;
disable_until = &item->host.snmp_disable_until;
fld_errors_from = "snmp_errors_from";
fld_available = "snmp_available";
fld_disable_until = "snmp_disable_until";
fld_error = "snmp_error";
type = "SNMP";
break;
case ITEM_TYPE_IPMI:
errors_from = &item->host.ipmi_errors_from;
available = &item->host.ipmi_available;
disable_until = &item->host.ipmi_disable_until;
fld_errors_from = "ipmi_errors_from";
fld_available = "ipmi_available";
fld_disable_until = "ipmi_disable_until";
fld_error = "ipmi_error";
type = "IPMI";
break;
default:
return;
}
if (SUCCEED != DCconfig_deactivate_host(item, now))
return;
DBbegin();
*error_msg = '\0';
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "update hosts set ");
/* First error */
if (0 == *errors_from)
{
zbx_snprintf(error_msg, sizeof(error_msg), "%s Host [%s]: first network error, wait for %d seconds",
type, item->host.host, CONFIG_UNREACHABLE_DELAY);
*errors_from = now;
*disable_until = now + CONFIG_UNREACHABLE_DELAY;
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "%s=%d,",
fld_errors_from, *errors_from);
}
else
{
if (now - *errors_from <= CONFIG_UNREACHABLE_PERIOD)
{
/* Still unavailable, but won't change status to UNAVAILABLE yet */
zbx_snprintf(error_msg, sizeof(error_msg), "%s Host [%s]: another network error, wait for %d seconds",
type, item->host.host, CONFIG_UNREACHABLE_DELAY);
*disable_until = now + CONFIG_UNREACHABLE_DELAY;
}
else
{
*disable_until = now + CONFIG_UNAVAILABLE_DELAY;
if (HOST_AVAILABLE_FALSE != *available)
{
zbx_snprintf(error_msg, sizeof(error_msg), "Disabling %s host [%s]",
type, item->host.host);
*available = HOST_AVAILABLE_FALSE;
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "%s=%d,",
fld_available, *available);
if (available == &item->host.available)
update_key_status(item->host.hostid, HOST_AVAILABLE_FALSE, now); /* 2 */
update_triggers_status_to_unknown(item->host.hostid, item->type, now, "Agent is unavailable.");
}
error_esc = DBdyn_escape_string_len(error, HOST_ERROR_LEN);
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "%s='%s',",
fld_error, error_esc);
zbx_free(error_esc);
}
}
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "%s=%d where hostid=" ZBX_FS_UI64,
fld_disable_until, *disable_until, item->host.hostid);
DBexecute("%s", sql);
DBcommit();
if ('\0' != *error_msg)
{
zabbix_log(LOG_LEVEL_WARNING, "%s", error_msg);
zabbix_syslog("%s", error_msg);
}
}
/******************************************************************************
* *
* 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;
}
static int process_trap(zbx_sock_t *sock, char *s, int max_len)
{
char *server,*key,*value_string, *data;
char copy[MAX_STRING_LEN];
char host_dec[MAX_STRING_LEN],key_dec[MAX_STRING_LEN],value_dec[MAX_STRING_LEN];
char lastlogsize[MAX_STRING_LEN];
char timestamp[MAX_STRING_LEN];
char source[MAX_STRING_LEN];
char severity[MAX_STRING_LEN];
int sender_nodeid, nodeid;
char *answer;
int ret=SUCCEED, res;
size_t datalen;
struct zbx_json_parse jp;
char value[MAX_STRING_LEN];
AGENT_VALUE av;
zbx_rtrim(s, " \r\n\0");
datalen = strlen(s);
zabbix_log( LOG_LEVEL_DEBUG, "Trapper got [%s] len %zd",
s,
datalen);
if (0 == strncmp(s,"ZBX_GET_ACTIVE_CHECKS", 21)) /* Request for list of active checks */
{
ret = send_list_of_active_checks(sock, s);
/* Request for last ids */
} else if (strncmp(s,"ZBX_GET_HISTORY_LAST_ID", 23) == 0) {
send_history_last_id(sock, s);
return ret;
} else if (strncmp(s,"ZBX_GET_TRENDS_LAST_ID", 22) == 0) {
send_trends_last_id(sock, s);
return ret;
/* Process information sent by zabbix_sender */
} else {
/* Command? */
if(strncmp(s,"Command",7) == 0)
{
node_process_command(sock, s);
return ret;
}
/* Node data exchange? */
if(strncmp(s,"Data",4) == 0)
{
node_sync_lock(0);
/* zabbix_log( LOG_LEVEL_WARNING, "Node data received [len:%d]", strlen(s)); */
res = node_sync(s, &sender_nodeid, &nodeid);
if (FAIL == res)
send_data_to_node(sender_nodeid, sock, "FAIL");
else {
res = calculate_checksums(nodeid, NULL, 0);
if (SUCCEED == res && NULL != (data = get_config_data(nodeid, ZBX_NODE_SLAVE))) {
res = send_data_to_node(sender_nodeid, sock, data);
zbx_free(data);
if (SUCCEED == res)
res = recv_data_from_node(sender_nodeid, sock, &answer);
if (SUCCEED == res && 0 == strcmp(answer, "OK"))
res = update_checksums(nodeid, ZBX_NODE_SLAVE, SUCCEED, NULL, 0, NULL);
}
}
node_sync_unlock(0);
return ret;
}
/* Slave node history ? */
if(strncmp(s,"History",7) == 0)
{
/* zabbix_log( LOG_LEVEL_WARNING, "Slave node history received [len:%d]", strlen(s)); */
if (node_history(s, datalen) == SUCCEED) {
if (zbx_tcp_send_raw(sock,"OK") != SUCCEED) {
zabbix_log( LOG_LEVEL_WARNING, "Error sending confirmation to node");
zabbix_syslog("Trapper: error sending confirmation to node");
}
}
return ret;
}
/* JSON protocol? */
else if (SUCCEED == zbx_json_open(s, &jp))
{
if (SUCCEED == zbx_json_value_by_name(&jp, ZBX_PROTO_TAG_REQUEST, value, sizeof(value))) {
if (0 == strcmp(value, ZBX_PROTO_VALUE_PROXY_CONFIG) && zbx_process == ZBX_PROCESS_SERVER)
{
send_proxyconfig(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_AGENT_DATA) ||
0 == strcmp(value, ZBX_PROTO_VALUE_SENDER_DATA))
{
ret = process_new_values(sock, &jp, 0);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_HISTORY_DATA) && zbx_process == ZBX_PROCESS_SERVER)
{
ret = process_proxy_values(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_DISCOVERY_DATA) && zbx_process == ZBX_PROCESS_SERVER)
{
ret = process_discovery_data(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_PROXY_HEARTBEAT) && zbx_process == ZBX_PROCESS_SERVER)
{
ret = process_proxy_heartbeat(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_GET_ACTIVE_CHECKS))
{
ret = send_list_of_active_checks_json(sock, &jp);
}
else
{
zabbix_log( LOG_LEVEL_WARNING, "Unknown request received [%s]",
value);
}
}
return ret;
}
/* New XML protocol? */
else if(s[0]=='<')
{
zabbix_log( LOG_LEVEL_DEBUG, "XML received [%s]", s);
comms_parse_response(s,host_dec,key_dec,value_dec,lastlogsize,timestamp,source,severity,sizeof(host_dec)-1);
server=host_dec;
value_string=value_dec;
key=key_dec;
}
else
{
strscpy(copy,s);
server=(char *)strtok(s,":");
if(NULL == server)
{
return FAIL;
}
key=(char *)strtok(NULL,":");
if(NULL == key)
{
return FAIL;
}
value_string=strchr(copy,':');
value_string=strchr(value_string+1,':');
if(NULL == value_string)
{
return FAIL;
}
/* It points to ':', so have to increment */
value_string++;
lastlogsize[0]=0;
timestamp[0]=0;
source[0]=0;
severity[0]=0;
}
zabbix_log( LOG_LEVEL_DEBUG, "Value [%s]", value_string);
av.clock = time(NULL);
zbx_strlcpy(av.host_name, server, sizeof(av.host_name));
zbx_strlcpy(av.key, key, sizeof(av.key));
av.value = value_string;
av.lastlogsize = atoi(lastlogsize);
av.timestamp = atoi(timestamp);
av.source = source;
av.severity = atoi(severity);
process_mass_data(sock, 0, &av, 1, NULL, 0);
if( zbx_tcp_send_raw(sock, SUCCEED == ret ? "OK" : "NOT OK") != SUCCEED)
{
zabbix_log( LOG_LEVEL_WARNING, "Error sending result back");
zabbix_syslog("Trapper: error sending result back");
}
zabbix_log( LOG_LEVEL_DEBUG, "After write()");
}
return ret;
}
/******************************************************************************
* *
* Function: process_data *
* *
* Purpose: process new item value *
* *
* Parameters: sockfd - descriptor of agent-server socket connection *
* server - server name *
* key - item's key *
* value - new value of server:key *
* lastlogsize - if key=log[*], last size of log file *
* *
* Return value: SUCCEED - new value processed sucesfully *
* FAIL - otherwise *
* *
* Author: Alexei Vladishev *
* *
* Comments: for trapper server process *
* *
******************************************************************************/
static void process_mass_data(zbx_sock_t *sock, zbx_uint64_t proxy_hostid, AGENT_VALUE *values, int value_num,
int *processed, time_t proxy_timediff)
{
AGENT_RESULT agent;
DB_RESULT result;
DB_ROW row;
DB_ITEM item;
char host_esc[MAX_STRING_LEN], key_esc[MAX_STRING_LEN];
static char *sql = NULL;
static int sql_allocated = 65536;
int sql_offset = 0, i;
zabbix_log(LOG_LEVEL_DEBUG, "In process_mass_data()");
if (NULL == sql)
sql = zbx_malloc(sql, sql_allocated);
DCinit_nextchecks();
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 2048,
"select %s where h.hostid=i.hostid and h.proxy_hostid=" ZBX_FS_UI64
" and h.status=%d and i.status in (%d,%d)",
ZBX_SQL_ITEM_SELECT,
proxy_hostid,
HOST_STATUS_MONITORED,
ITEM_STATUS_ACTIVE, ITEM_STATUS_NOTSUPPORTED);
if (proxy_hostid == 0)
{
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 64,
" and i.type in (%d,%d)",
ITEM_TYPE_TRAPPER,
ITEM_TYPE_ZABBIX_ACTIVE);
}
else
{
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 64,
" and i.type in (%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)",
ITEM_TYPE_ZABBIX,
ITEM_TYPE_SNMPv1,
ITEM_TYPE_TRAPPER,
ITEM_TYPE_SIMPLE,
ITEM_TYPE_SNMPv2c,
ITEM_TYPE_SNMPv3,
ITEM_TYPE_ZABBIX_ACTIVE,
ITEM_TYPE_HTTPTEST,
ITEM_TYPE_EXTERNAL,
ITEM_TYPE_IPMI);
}
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 8, " and (");
for (i = 0; i < value_num; i++)
{
DBescape_string(values[i].host_name, host_esc, sizeof(host_esc));
DBescape_string(values[i].key, key_esc, sizeof(key_esc));
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 512,
"(h.host='%s' and i.key_='%s') or ",
host_esc,
key_esc);
}
sql_offset -= 4;
zbx_snprintf_alloc(&sql, &sql_allocated, &sql_offset, 128, ")" DB_NODE,
DBnode_local("h.hostid"));
result = DBselect("%s", sql);
while (NULL != (row = DBfetch(result))) {
DBget_item_from_db(&item, row);
if (item.type == ITEM_TYPE_ZABBIX_ACTIVE && FAIL == zbx_tcp_check_security(sock, item.trapper_hosts, 1))
continue;
if (item.maintenance_status == HOST_MAINTENANCE_STATUS_ON && item.maintenance_type == MAINTENANCE_TYPE_NODATA &&
item.maintenance_from <= values[i].clock)
continue;
for (i = 0; i < value_num; i++)
{
if (0 == strcmp(item.host_name, values[i].host_name) && 0 == strcmp(item.key_orig, values[i].key)) {
/* zabbix_log(LOG_LEVEL_DEBUG, "Processing [%s@%s: \"%s\"]",
item.key,
item.host_name,
values[i].value);*/
if (0 == strcmp(values[i].value, "ZBX_NOTSUPPORTED"))
{
zabbix_log(LOG_LEVEL_WARNING, "Active parameter [%s] is not supported by agent on host [%s]",
item.key_orig,
item.host_name);
zabbix_syslog("Active parameter [%s] is not supported by agent on host [%s]",
item.key_orig,
item.host_name);
DCadd_nextcheck(&item, values[i].clock, proxy_timediff, "Not supported by ZABBIX agent");
if (NULL != processed)
(*processed)++;
}
else
{
if (0 == strncmp(item.key, "log[", 4) || 0 == strncmp(item.key, "eventlog[", 9))
{
item.lastlogsize = values[i].lastlogsize;
item.timestamp = values[i].timestamp;
calc_timestamp(values[i].value, &item.timestamp, item.logtimefmt);
item.eventlog_severity = values[i].severity;
item.eventlog_source = values[i].source;
/* zabbix_log(LOG_LEVEL_DEBUG, "Value [%s] Lastlogsize [%s] Timestamp [%s]",
values[i].value,
item.lastlogsize,
item.timestamp);*/
}
init_result(&agent);
if (SUCCEED == set_result_type(&agent, item.value_type, item.data_type, values[i].value))
{
if (0 == CONFIG_DBSYNCER_FORKS)
DBbegin();
switch (zbx_process) {
case ZBX_PROCESS_SERVER:
process_new_value(&item, &agent, values[i].clock);
break;
case ZBX_PROCESS_PROXY:
proxy_process_new_value(&item, &agent, values[i].clock);
break;
}
if (0 == CONFIG_DBSYNCER_FORKS)
DBcommit();
if (NULL != processed)
(*processed)++;
/* only for screen Administration|Queue */
if (item.type != ITEM_TYPE_TRAPPER && item.type != ITEM_TYPE_HTTPTEST &&
item.value_type != ITEM_VALUE_TYPE_LOG &&
0 != strcmp(item.key, SERVER_STATUS_KEY) &&
0 != strcmp(item.key, SERVER_ICMPPING_KEY) &&
0 != strcmp(item.key, SERVER_ICMPPINGSEC_KEY) &&
0 != strcmp(item.key, SERVER_ZABBIXLOG_KEY))
DCadd_nextcheck(&item, values[i].clock, proxy_timediff, NULL);
}
else
{
if (GET_MSG_RESULT(&agent))
zabbix_log(LOG_LEVEL_WARNING, "Item [%s] error: %s",
zbx_host_key_string_by_item(&item),
agent.msg);
}
free_result(&agent);
}
}
}
}
DBfree_result(result);
DCflush_nextchecks();
}
/******************************************************************************
* *
* Function: process_new_values *
* *
* Purpose: process values sent by active agents and senders *
* *
* Parameters: *
* *
* Return value: SUCCEED - processed successfully *
* FAIL - an error occured *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int process_new_values(zbx_sock_t *sock, struct zbx_json_parse *jp, const zbx_uint64_t proxy_hostid)
{
struct zbx_json_parse jp_data, jp_row;
const char *p;
char info[MAX_STRING_LEN], tmp[MAX_STRING_LEN];
int ret = SUCCEED;
int processed = 0;
double sec;
time_t now, proxy_timediff = 0;
#define VALUES_MAX 256
static AGENT_VALUE *values = NULL, *av;
int value_num = 0;
zabbix_log(LOG_LEVEL_DEBUG, "In process_new_values()");
now = time(NULL);
sec = zbx_time();
if (NULL == values)
values = zbx_malloc(values, VALUES_MAX * sizeof(AGENT_VALUE));
if (SUCCEED == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_CLOCK, tmp, sizeof(tmp)))
proxy_timediff = now - atoi(tmp);
/* {"request":"ZBX_SENDER_DATA","data":[{"key":"system.cpu.num",...,...},{...},...]}
* ^
*/ if (NULL == (p = zbx_json_pair_by_name(jp, ZBX_PROTO_TAG_DATA)))
{
zabbix_log(LOG_LEVEL_WARNING, "Can't find \"data\" pair");
ret = FAIL;
}
if(SUCCEED == ret)
{
/* {"request":"ZBX_SENDER_DATA","data":[{"key":"system.cpu.num",...,...},{...},...]}
* ^------------------------------------------^
*/ if (FAIL == (ret = zbx_json_brackets_open(p, &jp_data)))
zabbix_log(LOG_LEVEL_WARNING, "Can't proceed jason request. %s",
zbx_json_strerror());
}
/* {"request":"ZBX_SENDER_DATA","data":[{"key":"system.cpu.num",...,...},{...},...]}
* ^
*/ p = NULL;
while (SUCCEED == ret && NULL != (p = zbx_json_next(&jp_data, p)))
{
/* {"request":"ZBX_SENDER_DATA","data":[{"key":"system.cpu.num",...,...},{...},...]}
* ^------------------------------^
*/ if (FAIL == (ret = zbx_json_brackets_open(p, &jp_row)))
break;
/* zabbix_log(LOG_LEVEL_DEBUG, "Next \"%.*s\"",
jp_row.end - jp_row.start + 1,
jp_row.start);*/
av = &values[value_num];
memset(av, 0, sizeof(AGENT_VALUE));
if (SUCCEED == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_CLOCK, tmp, sizeof(tmp)))
av->clock = atoi(tmp) + proxy_timediff;
else
av->clock = now;
if (FAIL == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_HOST, av->host_name, sizeof(av->host_name)))
continue;
if (FAIL == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_KEY, av->key, sizeof(av->key)))
continue;
if (FAIL == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_VALUE, tmp, sizeof(tmp)))
continue;
av->value = strdup(tmp);
if (SUCCEED == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_LOGLASTSIZE, tmp, sizeof(tmp)))
av->lastlogsize = atoi(tmp);
if (SUCCEED == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_LOGTIMESTAMP, tmp, sizeof(tmp)))
av->timestamp = atoi(tmp);
if (SUCCEED == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_LOGSOURCE, tmp, sizeof(tmp)))
av->source = strdup(tmp);
if (SUCCEED == zbx_json_value_by_name(&jp_row, ZBX_PROTO_TAG_LOGSEVERITY, tmp, sizeof(tmp)))
av->severity = atoi(tmp);
value_num ++;
if (value_num == VALUES_MAX) {
process_mass_data(sock, proxy_hostid, values, value_num, &processed, proxy_timediff);
clean_agent_values(values, value_num);
value_num = 0;
}
}
if (value_num > 0)
process_mass_data(sock, proxy_hostid, values, value_num, &processed, proxy_timediff);
clean_agent_values(values, value_num);
zbx_snprintf(info, sizeof(info), "Processed %d Failed %d Total %d Seconds spent " ZBX_FS_DBL,
processed,
value_num - processed,
value_num,
zbx_time() - sec);
if (send_result(sock, ret, info) != SUCCEED)
{
zabbix_log( LOG_LEVEL_WARNING, "Error sending result back");
zabbix_syslog("Trapper: error sending result back");
}
return ret;
}
/******************************************************************************
* *
* Function: update_item *
* *
* Purpose: update item info after new value is received *
* *
* Parameters: item - item data *
* value - new value of the item *
* now - current timestamp *
* *
* Author: Alexei Vladishev, Eugene Grigorjev *
* *
* Comments: *
* *
******************************************************************************/
static void update_item(DB_ITEM *item, AGENT_RESULT *value, time_t now)
{
char *value_esc;
zbx_uint64_t value_uint64;
double value_double;
zabbix_log(LOG_LEVEL_DEBUG, "In update_item()");
item->nextcheck = calculate_item_nextcheck(item->itemid, item->type, item->delay, item->delay_flex, now);
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:
value_double = DBmultiply_value_float(item, value->dbl);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue=NULL,"
"lastvalue='" ZBX_FS_DBL "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value_double,
(int)now,
item->itemid);
SET_DBL_RESULT(value, value_double);
break;
case ITEM_STORE_SPEED_PER_SECOND: /* Delta as speed of change */
if (0 == item->prevorgvalue_null && item->prevorgvalue_dbl <= value->dbl)
{
/* In order to continue normal processing, we assume difference 1 second
Otherwise function update_functions and update_triggers won't work correctly*/
if (now != item->lastclock)
value_double = (value->dbl - item->prevorgvalue_dbl) / (now - item->lastclock);
else
value_double = value->dbl - item->prevorgvalue_dbl;
value_double = DBmultiply_value_float(item, value_double);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue='" ZBX_FS_DBL "',"
"lastvalue='" ZBX_FS_DBL "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->dbl,
value_double,
(int)now,
item->itemid);
SET_DBL_RESULT(value, value_double);
}
else
{
DBexecute("update items set nextcheck=%d,prevorgvalue='" ZBX_FS_DBL "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->dbl,
(int)now,
item->itemid);
}
break;
case ITEM_STORE_SIMPLE_CHANGE: /* Real delta: simple difference between values */
if (0 == item->prevorgvalue_null && item->prevorgvalue_dbl <= value->dbl)
{
value_double = DBmultiply_value_float(item, value->dbl - item->prevorgvalue_dbl);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue='" ZBX_FS_DBL "',"
"lastvalue='" ZBX_FS_DBL "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->dbl,
value_double,
(int)now,
item->itemid);
SET_DBL_RESULT(value, value_double);
}
else
{
DBexecute("update items set nextcheck=%d,prevorgvalue='" ZBX_FS_DBL "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->dbl,
(int)now,
item->itemid);
}
break;
}
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:
value_uint64 = DBmultiply_value_uint64(item, value->ui64);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue=NULL,"
"lastvalue='" ZBX_FS_UI64 "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value_uint64,
(int)now,
item->itemid);
SET_UI64_RESULT(value, value_uint64);
break;
case ITEM_STORE_SPEED_PER_SECOND: /* Delta as speed of change */
if (0 == item->prevorgvalue_null && item->prevorgvalue_uint64 <= value->ui64)
{
if (now != item->lastclock)
value_uint64 = (zbx_uint64_t)(value->ui64 - item->prevorgvalue_uint64) / (now - item->lastclock);
else
value_uint64 = value->ui64 - item->prevorgvalue_uint64;
value_uint64 = DBmultiply_value_uint64(item, value_uint64);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue='" ZBX_FS_UI64 "',"
"lastvalue='" ZBX_FS_UI64 "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->ui64,
value_uint64,
(int)now,
item->itemid);
SET_UI64_RESULT(value, value_uint64);
}
else
{
DBexecute("update items set nextcheck=%d,prevorgvalue='" ZBX_FS_UI64 "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->ui64,
(int)now,
item->itemid);
}
break;
case ITEM_STORE_SIMPLE_CHANGE: /* Real delta: simple difference between values */
if (0 == item->prevorgvalue_null && item->prevorgvalue_uint64 <= value->ui64)
{
value_uint64 = DBmultiply_value_uint64(item, value->ui64 - item->prevorgvalue_uint64);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,prevorgvalue='" ZBX_FS_UI64 "',"
"lastvalue='" ZBX_FS_UI64 "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->ui64,
value_uint64,
(int)now,
item->itemid);
SET_UI64_RESULT(value, value_uint64);
}
else
{
DBexecute("update items set nextcheck=%d,prevorgvalue='" ZBX_FS_UI64 "',lastclock=%d where itemid=" ZBX_FS_UI64,
item->nextcheck,
value->ui64,
(int)now,
item->itemid);
}
break;
}
break;
case ITEM_VALUE_TYPE_STR:
case ITEM_VALUE_TYPE_TEXT:
if (NULL == GET_STR_RESULT(value))
break;
value_esc = DBdyn_escape_string_len(value->str, ITEM_LASTVALUE_LEN);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,lastvalue='%s',lastclock=%d"
" where itemid=" ZBX_FS_UI64,
item->nextcheck,
value_esc,
(int)now,
item->itemid);
zbx_free(value_esc);
break;
case ITEM_VALUE_TYPE_LOG:
if (NULL == GET_STR_RESULT(value))
break;
value_esc = DBdyn_escape_string_len(value->str, ITEM_LASTVALUE_LEN);
DBexecute("update items set nextcheck=%d,prevvalue=lastvalue,lastvalue='%s',lastclock=%d,lastlogsize=%d"
" where itemid=" ZBX_FS_UI64,
item->nextcheck,
value_esc,
(int)now,
item->lastlogsize,
item->itemid);
zbx_free(value_esc);
break;
}
item->prevvalue_str = item->lastvalue_str;
item->prevvalue_dbl = item->lastvalue_dbl;
item->prevvalue_uint64 = item->lastvalue_uint64;
item->prevvalue_null = item->lastvalue_null;
item->lastvalue_uint64 = value->ui64;
item->lastvalue_dbl = value->dbl;
item->lastvalue_str = value->str;
item->lastvalue_null = 0;
/* Required for nodata() */
item->lastclock = now;
/* Update item status if required */
if (item->status == ITEM_STATUS_NOTSUPPORTED)
{
zabbix_log( LOG_LEVEL_WARNING, "Parameter [%s] became supported by agent on host [%s]",
item->key,
item->host_name);
zabbix_syslog("Parameter [%s] became supported by agent on host [%s]",
item->key,
item->host_name);
item->status = ITEM_STATUS_ACTIVE;
DBexecute("update items set status=%d,error='' where itemid=" ZBX_FS_UI64,
item->status,
item->itemid);
}
zabbix_log(LOG_LEVEL_DEBUG, "End of update_item()");
}
int get_value(DB_ITEM *item, AGENT_RESULT *result)
{
int res = FAIL;
zabbix_log(LOG_LEVEL_DEBUG, "In get_value(key:%s)",
item->key);
switch (item->type) {
case ITEM_TYPE_ZABBIX:
alarm(CONFIG_TIMEOUT);
res = get_value_agent(item, result);
alarm(0);
if (SUCCEED != res && GET_MSG_RESULT(result))
zabbix_log(LOG_LEVEL_WARNING, "Item [%s] error: %s",
zbx_host_key_string_by_item(item),
result->msg);
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
#ifdef HAVE_SNMP
alarm(CONFIG_TIMEOUT);
res = get_value_snmp(item, result);
alarm(0);
#else
SET_MSG_RESULT(result, strdup("Support of SNMP parameters was not compiled in"));
res = NOTSUPPORTED;
#endif
if (SUCCEED != res && GET_MSG_RESULT(result))
zabbix_log(LOG_LEVEL_WARNING, "Item [%s] error: %s",
zbx_host_key_string_by_item(item),
result->msg);
break;
case ITEM_TYPE_IPMI:
#ifdef HAVE_OPENIPMI
res = get_value_ipmi(item, result);
#else
SET_MSG_RESULT(result, strdup("Support of IPMI parameters was not compiled in"));
res = NOTSUPPORTED;
#endif
break;
case ITEM_TYPE_SIMPLE:
alarm(CONFIG_TIMEOUT);
res = get_value_simple(item, result);
alarm(0);
break;
case ITEM_TYPE_INTERNAL:
alarm(CONFIG_TIMEOUT);
res = get_value_internal(item, result);
alarm(0);
break;
case ITEM_TYPE_DB_MONITOR:
alarm(CONFIG_TIMEOUT);
res = get_value_db(item, result);
alarm(0);
if (SUCCEED != res && GET_MSG_RESULT(result))
zabbix_log(LOG_LEVEL_WARNING, "Item [%s] error: %s",
zbx_host_key_string_by_item(item),
result->msg);
break;
case ITEM_TYPE_AGGREGATE:
alarm(CONFIG_TIMEOUT);
res = get_value_aggregate(item, result);
alarm(0);
break;
case ITEM_TYPE_EXTERNAL:
alarm(CONFIG_TIMEOUT);
res = get_value_external(item, result);
alarm(0);
if (SUCCEED != res && GET_MSG_RESULT(result))
zabbix_log(LOG_LEVEL_WARNING, "Item [%s] error: %s",
zbx_host_key_string_by_item(item),
result->msg);
break;
default:
zabbix_log(LOG_LEVEL_WARNING, "Not supported item type:%d",
item->type);
zabbix_syslog("Not supported item type:%d",
item->type);
res = NOTSUPPORTED;
}
zabbix_log(LOG_LEVEL_DEBUG, "End get_value()");
return res;
}
/******************************************************************************
* *
* Function: execute_action *
* *
* Purpose: execute an action depending on mediatype *
* *
* Parameters: alert - alert details *
* mediatype - media details *
* *
* Return value: SUCCESS - action executed sucessfully *
* FAIL - otherwise, error will contain error message *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int execute_action(DB_ALERT *alert,DB_MEDIATYPE *mediatype, char *error, int max_error_len)
{
int res=FAIL;
int pid;
char full_path[MAX_STRING_LEN];
char env_alertid[128],env_actionid[128],env_clock[128],env_mediatypeid[128],
env_status[128];
char *zbxenv[] = { (char *)&env_alertid, (char *)&env_actionid, (char *)&env_clock,
(char *)&env_mediatypeid, (char *)&env_status,
(char *)0 };
zabbix_log( LOG_LEVEL_DEBUG, "In execute_action(%s)",
mediatype->smtp_server);
if(mediatype->type==MEDIA_TYPE_EMAIL)
{
alarm(40);
res = send_email(mediatype->smtp_server,mediatype->smtp_helo,mediatype->smtp_email,alert->sendto,alert->subject,
alert->message, error, max_error_len);
alarm(0);
}
#if defined (HAVE_JABBER)
else if(mediatype->type==MEDIA_TYPE_JABBER)
{
/* Jabber uses its own timeouts */
res = send_jabber(mediatype->username, mediatype->passwd, alert->sendto, alert->subject,
alert->message, error, max_error_len);
}
#endif /* HAVE_JABBER */
else if(mediatype->type==MEDIA_TYPE_SMS)
{
/* SMS uses its own timeouts */
res = send_sms(mediatype->gsm_modem,alert->sendto,alert->message, error, max_error_len);
}
else if(mediatype->type==MEDIA_TYPE_EXEC)
{
/* if(-1 == execl(CONFIG_ALERT_SCRIPTS_PATH,mediatype->exec_path,alert->sendto,alert->subject,alert->message))*/
zabbix_log( LOG_LEVEL_DEBUG, "Before execl([%s],[%s])",
CONFIG_ALERT_SCRIPTS_PATH,
mediatype->exec_path);
/* if(-1 == execl("/home/zabbix/bin/lmt.sh","lmt.sh",alert->sendto,alert->subject,alert->message,(char *)0))*/
pid = zbx_fork();
if(0 != pid)
{
waitpid(pid,NULL,0);
}
else
{
strscpy(full_path,CONFIG_ALERT_SCRIPTS_PATH);
zbx_strlcat(full_path,"/",MAX_STRING_LEN);
zbx_strlcat(full_path,mediatype->exec_path,MAX_STRING_LEN);
ltrim_spaces(full_path);
zabbix_log( LOG_LEVEL_DEBUG, "Before executing [%s]",
full_path);
zbx_snprintf(env_alertid,127,"ZABBIX_ALERT_ID=%d",
alert->alertid);
zbx_snprintf(env_actionid,127,"ZABBIX_ACTION_ID=%d",
alert->actionid);
zbx_snprintf(env_clock,127,"ZABBIX_ALERT_TIME=%d",
alert->clock);
zbx_snprintf(env_mediatypeid,127,"ZABBIX_ALERT_MEDIATYPEID=%d",
alert->mediatypeid);
zbx_snprintf(env_status,127,"ZABBIX_ALERT_STATUS=%d",
alert->status);
/* if(-1 == execl(full_path,mediatype->exec_path,alert->sendto,alert->subject,alert->message,(char *)0))*/
if(-1 == execle(full_path,mediatype->exec_path,alert->sendto,alert->subject,alert->message,(char *)0, zbxenv))
{
zabbix_log( LOG_LEVEL_ERR, "Error executing [%s] [%s]",
full_path,
strerror(errno));
zabbix_syslog("Error executing [%s] [%s]",
full_path,
strerror(errno));
zbx_snprintf(error,max_error_len,"Error executing [%s] [%s]",
full_path,
strerror(errno));
res = FAIL;
}
else
{
res = SUCCEED;
}
/* In normal case the program will never reach this point */
zabbix_log( LOG_LEVEL_DEBUG, "After execl()");
exit(0);
}
res = SUCCEED;
}
else
{
zabbix_log( LOG_LEVEL_ERR, "Unsupported media type [%d] for alert ID [%d]",
mediatype->type,
alert->alertid);
zabbix_syslog("Unsupported media type [%d] for alert ID [%d]",
mediatype->type,
alert->alertid);
zbx_snprintf(error,max_error_len,"Unsupported media type [%d]",
mediatype->type);
res=FAIL;
}
zabbix_log( LOG_LEVEL_DEBUG, "End execute_action()");
return res;
}
/******************************************************************************
* *
* Function: main_alerter_loop *
* *
* Purpose: periodically check table alerts and send notifications if needed *
* *
* Author: Alexei Vladishev *
* *
******************************************************************************/
void main_alerter_loop()
{
char error[MAX_STRING_LEN], *error_esc;
int res;
DB_RESULT result;
DB_ROW row;
DB_ALERT alert;
DB_MEDIATYPE mediatype;
zbx_setproctitle("%s [connecting to the database]", get_process_type_string(process_type));
DBconnect(ZBX_DB_CONNECT_NORMAL);
for (;;)
{
zbx_setproctitle("%s [sending alerts]", get_process_type_string(process_type));
result = DBselect("select a.alertid,a.mediatypeid,a.sendto,a.subject,a.message,a.status,mt.mediatypeid"
",mt.type,mt.description,mt.smtp_server,mt.smtp_helo,mt.smtp_email,mt.exec_path"
",mt.gsm_modem,mt.username,mt.passwd,a.retries from alerts a,media_type mt"
" where a.status=%d and a.mediatypeid=mt.mediatypeid and a.alerttype=%d" DB_NODE
" order by a.clock",
ALERT_STATUS_NOT_SENT,
ALERT_TYPE_MESSAGE,
DBnode_local("mt.mediatypeid"));
while (NULL != (row = DBfetch(result)))
{
ZBX_STR2UINT64(alert.alertid, row[0]);
alert.mediatypeid = atoi(row[1]);
alert.sendto = row[2];
alert.subject = row[3];
alert.message = row[4];
alert.status = atoi(row[5]);
ZBX_STR2UINT64(mediatype.mediatypeid, row[6]);
mediatype.type = atoi(row[7]);
mediatype.description = row[8];
mediatype.smtp_server = row[9];
mediatype.smtp_helo = row[10];
mediatype.smtp_email = row[11];
mediatype.exec_path = row[12];
mediatype.gsm_modem = row[13];
mediatype.username = row[14];
mediatype.passwd = row[15];
alert.retries = atoi(row[16]);
*error = '\0';
res = execute_action(&alert, &mediatype, error, sizeof(error));
if (SUCCEED == res)
{
zabbix_log(LOG_LEVEL_DEBUG, "Alert ID [" ZBX_FS_UI64 "] was sent successfully",
alert.alertid);
DBexecute("update alerts set status=%d,error='' where alertid=" ZBX_FS_UI64,
ALERT_STATUS_SENT, alert.alertid);
}
else
{
zabbix_log(LOG_LEVEL_DEBUG, "Error sending alert ID [" ZBX_FS_UI64 "]",
alert.alertid);
zabbix_syslog("Error sending alert ID [" ZBX_FS_UI64 "]",
alert.alertid);
error_esc = DBdyn_escape_string_len(error, ALERT_ERROR_LEN);
alert.retries++;
if (ALERT_MAX_RETRIES > alert.retries)
{
DBexecute("update alerts set retries=%d,error='%s' where alertid=" ZBX_FS_UI64,
alert.retries, error_esc, alert.alertid);
}
else
{
DBexecute("update alerts set status=%d,retries=%d,error='%s' where alertid=" ZBX_FS_UI64,
ALERT_STATUS_FAILED, alert.retries, error_esc, alert.alertid);
}
zbx_free(error_esc);
}
}
DBfree_result(result);
zbx_sleep_loop(CONFIG_SENDER_FREQUENCY);
}
}
/******************************************************************************
* *
* Function: execute_action *
* *
* Purpose: execute an action depending on mediatype *
* *
* Parameters: alert - alert details *
* mediatype - media details *
* *
* Return value: SUCCESS - action executed sucessfully *
* FAIL - otherwise, error will contain error message *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int execute_action(DB_ALERT *alert, DB_MEDIATYPE *mediatype, char *error, int max_error_len)
{
const char *__function_name = "execute_action";
int pid, res = FAIL;
char full_path[MAX_STRING_LEN];
zabbix_log(LOG_LEVEL_DEBUG, "In %s(): alertid [" ZBX_FS_UI64 "] mediatype [%d]",
__function_name, alert->alertid, mediatype->type);
if (MEDIA_TYPE_EMAIL == mediatype->type)
{
alarm(40);
res = send_email(mediatype->smtp_server, mediatype->smtp_helo, mediatype->smtp_email,
alert->sendto, alert->subject, alert->message, error, max_error_len);
alarm(0);
}
#if defined(HAVE_JABBER)
else if (MEDIA_TYPE_JABBER == mediatype->type)
{
/* Jabber uses its own timeouts */
res = send_jabber(mediatype->username, mediatype->passwd,
alert->sendto, alert->subject, alert->message, error, max_error_len);
}
#endif
else if (MEDIA_TYPE_SMS == mediatype->type)
{
/* SMS uses its own timeouts */
res = send_sms(mediatype->gsm_modem, alert->sendto, alert->message, error, max_error_len);
}
else if (MEDIA_TYPE_EZ_TEXTING == mediatype->type)
{
/* Ez Texting uses its own timeouts */
res = send_ez_texting(mediatype->username, mediatype->passwd,
alert->sendto, alert->message, mediatype->exec_path, error, max_error_len);
}
else if (MEDIA_TYPE_EXEC == mediatype->type)
{
pid = zbx_fork();
if (0 != pid)
{
waitpid(pid, NULL, 0);
res = SUCCEED;
}
else
{
zbx_snprintf(full_path, sizeof(full_path), "%s/%s",
CONFIG_ALERT_SCRIPTS_PATH, mediatype->exec_path);
zabbix_log(LOG_LEVEL_DEBUG, "Before executing [%s]", full_path);
if (-1 == execl(full_path, mediatype->exec_path, alert->sendto,
alert->subject, alert->message, (char *)NULL))
{
zabbix_log(LOG_LEVEL_ERR, "Error executing [%s] [%s]",
full_path,
strerror(errno));
zabbix_syslog("Error executing [%s] [%s]",
full_path,
strerror(errno));
exit(FAIL);
}
else
THIS_SHOULD_NEVER_HAPPEN;
}
}
else
{
zabbix_log(LOG_LEVEL_ERR, "Unsupported media type [%d] for alert ID [" ZBX_FS_UI64 "]",
mediatype->type,
alert->alertid);
zabbix_syslog("Unsupported media type [%d] for alert ID [" ZBX_FS_UI64 "]",
mediatype->type,
alert->alertid);
zbx_snprintf(error, max_error_len, "Unsupported media type [%d]",
mediatype->type);
res = FAIL;
}
zabbix_log(LOG_LEVEL_DEBUG, "End of %s(): %d", __function_name, zbx_result_string(res));
return res;
}
static void activate_host(DC_ITEM *item, int now)
{
char sql[MAX_STRING_LEN], error_msg[MAX_STRING_LEN];
int offset = 0, *errors_from, *disable_until;
unsigned char *available;
const char *fld_errors_from, *fld_available, *fld_disable_until, *fld_error, *type;
switch (item->type)
{
case ITEM_TYPE_ZABBIX:
errors_from = &item->host.errors_from;
available = &item->host.available;
disable_until = &item->host.disable_until;
fld_errors_from = "errors_from";
fld_available = "available";
fld_disable_until = "disable_until";
fld_error = "error";
type = "Zabbix";
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
errors_from = &item->host.snmp_errors_from;
available = &item->host.snmp_available;
disable_until = &item->host.snmp_disable_until;
fld_errors_from = "snmp_errors_from";
fld_available = "snmp_available";
fld_disable_until = "snmp_disable_until";
fld_error = "snmp_error";
type = "SNMP";
break;
case ITEM_TYPE_IPMI:
errors_from = &item->host.ipmi_errors_from;
available = &item->host.ipmi_available;
disable_until = &item->host.ipmi_disable_until;
fld_errors_from = "ipmi_errors_from";
fld_available = "ipmi_available";
fld_disable_until = "ipmi_disable_until";
fld_error = "ipmi_error";
type = "IPMI";
break;
default:
return;
}
if (0 == *errors_from && HOST_AVAILABLE_TRUE == *available)
return;
if (SUCCEED != DCconfig_activate_host(item))
return;
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "update hosts set ");
if (HOST_AVAILABLE_TRUE != *available)
{
zbx_snprintf(error_msg, sizeof(error_msg), "Enabling %s host [%s]",
type, item->host.host);
zabbix_log(LOG_LEVEL_WARNING, "%s", error_msg);
zabbix_syslog("%s", error_msg);
*available = HOST_AVAILABLE_TRUE;
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset, "%s=%d,",
fld_available, *available);
if (available == &item->host.available)
update_key_status(item->host.hostid, HOST_STATUS_MONITORED, now); /* 0 */
}
*errors_from = 0;
*disable_until = 0;
offset += zbx_snprintf(sql + offset, sizeof(sql) - offset,
"%s=%d,%s=%d,%s='' where hostid=" ZBX_FS_UI64,
fld_errors_from, *errors_from,
fld_disable_until, *disable_until,
fld_error,
item->host.hostid);
DBbegin();
DBexecute("%s", sql);
DBcommit();
}
/******************************************************************************
* *
* Function: execute_action *
* *
* Purpose: execute an action depending on mediatype *
* *
* Parameters: alert - alert details *
* mediatype - media details *
* *
* Return value: SUCCESS - action executed sucessfully *
* FAIL - otherwise, error will contain error message *
* *
* Author: Alexei Vladishev *
* *
******************************************************************************/
int execute_action(DB_ALERT *alert, DB_MEDIATYPE *mediatype, char *error, int max_error_len)
{
const char *__function_name = "execute_action";
int res = FAIL;
zabbix_log(LOG_LEVEL_DEBUG, "In %s(): alertid [" ZBX_FS_UI64 "] mediatype [%d]",
__function_name, alert->alertid, mediatype->type);
if (MEDIA_TYPE_EMAIL == mediatype->type)
{
alarm(ALARM_ACTION_TIMEOUT);
res = send_email(mediatype->smtp_server, mediatype->smtp_helo, mediatype->smtp_email,
alert->sendto, alert->subject, alert->message, error, max_error_len);
alarm(0);
}
#ifdef HAVE_JABBER
else if (MEDIA_TYPE_JABBER == mediatype->type)
{
/* Jabber uses its own timeouts */
res = send_jabber(mediatype->username, mediatype->passwd,
alert->sendto, alert->subject, alert->message, error, max_error_len);
}
#endif
else if (MEDIA_TYPE_SMS == mediatype->type)
{
/* SMS uses its own timeouts */
res = send_sms(mediatype->gsm_modem, alert->sendto, alert->message, error, max_error_len);
}
else if (MEDIA_TYPE_EZ_TEXTING == mediatype->type)
{
/* Ez Texting uses its own timeouts */
res = send_ez_texting(mediatype->username, mediatype->passwd,
alert->sendto, alert->message, mediatype->exec_path, error, max_error_len);
}
else if (MEDIA_TYPE_EXEC == mediatype->type)
{
char full_path[MAX_STRING_LEN], *send_to, *subject, *message, *output = NULL;
send_to = zbx_dyn_escape_string(alert->sendto, "\"\\");
subject = zbx_dyn_escape_string(alert->subject, "\"\\");
message = zbx_dyn_escape_string(alert->message, "\"\\");
zbx_snprintf(full_path, sizeof(full_path), "%s/%s \"%s\" \"%s\" \"%s\"",
CONFIG_ALERT_SCRIPTS_PATH, mediatype->exec_path, send_to, subject, message);
zbx_free(send_to);
zbx_free(subject);
zbx_free(message);
if (SUCCEED == (res = zbx_execute(full_path, &output, error, max_error_len, ALARM_ACTION_TIMEOUT)))
{
zabbix_log(LOG_LEVEL_DEBUG, "%s output:\n%s", mediatype->exec_path, output);
zbx_free(output);
}
else
res = FAIL;
}
else
{
zbx_snprintf(error, max_error_len, "unsupported media type [%d]", mediatype->type);
zabbix_log(LOG_LEVEL_ERR, "alert ID [" ZBX_FS_UI64 "]: %s", alert->alertid, error);
zabbix_syslog("alert ID [" ZBX_FS_UI64 "]: %s", alert->alertid, error);
}
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
static int process_trap(zbx_sock_t *sock, char *s, int max_len)
{
char *pl, *pr, *data, value_dec[MAX_BUFFER_LEN];
char lastlogsize[11], timestamp[11], source[HISTORY_LOG_SOURCE_LEN_MAX], severity[11];
int sender_nodeid, nodeid;
char *answer;
int ret = SUCCEED, res;
size_t datalen;
struct zbx_json_parse jp;
char value[MAX_STRING_LEN];
AGENT_VALUE av;
memset(&av, 0, sizeof(AGENT_VALUE));
zbx_rtrim(s, " \r\n");
datalen = strlen(s);
zabbix_log(LOG_LEVEL_DEBUG, "Trapper got [%s] len " ZBX_FS_SIZE_T, s, (zbx_fs_size_t)datalen);
if (0 == strncmp(s, "ZBX_GET_ACTIVE_CHECKS", 21)) /* Request for list of active checks */
{
ret = send_list_of_active_checks(sock, s);
}
else if (strncmp(s, "ZBX_GET_HISTORY_LAST_ID", 23) == 0) /* Request for last ids */
{
send_history_last_id(sock, s);
return ret;
}
else /* Process information sent by zabbix_sender */
{
/* Node data exchange? */
if (strncmp(s, "Data", 4) == 0)
{
node_sync_lock(0);
res = node_sync(s, &sender_nodeid, &nodeid);
if (FAIL == res)
{
alarm(CONFIG_TIMEOUT);
send_data_to_node(sender_nodeid, sock, "FAIL");
alarm(0);
}
else
{
res = calculate_checksums(nodeid, NULL, 0);
if (SUCCEED == res && NULL != (data = get_config_data(nodeid, ZBX_NODE_SLAVE)))
{
zabbix_log( LOG_LEVEL_WARNING, "NODE %d: Sending configuration changes"
" to slave node %d for node %d datalen " ZBX_FS_SIZE_T,
CONFIG_NODEID,
sender_nodeid,
nodeid,
(zbx_fs_size_t)strlen(data));
alarm(CONFIG_TRAPPER_TIMEOUT);
res = send_data_to_node(sender_nodeid, sock, data);
zbx_free(data);
if (SUCCEED == res)
res = recv_data_from_node(sender_nodeid, sock, &answer);
if (SUCCEED == res && 0 == strcmp(answer, "OK"))
res = update_checksums(nodeid, ZBX_NODE_SLAVE, SUCCEED, NULL, 0, NULL);
alarm(0);
}
}
node_sync_unlock(0);
return ret;
}
/* Slave node history ? */
if (strncmp(s, "History", 7) == 0)
{
const char *reply;
reply = (SUCCEED == node_history(s, datalen) ? "OK" : "FAIL");
alarm(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send_raw(sock, reply))
{
zabbix_log(LOG_LEVEL_WARNING, "Error sending %s to node", reply);
zabbix_syslog("Trapper: error sending %s to node", reply);
}
alarm(0);
return ret;
}
/* JSON protocol? */
else if (SUCCEED == zbx_json_open(s, &jp))
{
if (SUCCEED == zbx_json_value_by_name(&jp, ZBX_PROTO_TAG_REQUEST, value, sizeof(value)))
{
if (0 == strcmp(value, ZBX_PROTO_VALUE_PROXY_CONFIG))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
send_proxyconfig(sock, &jp);
else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY_PASSIVE))
{
zabbix_log(LOG_LEVEL_WARNING, "Received configuration data from server."
" Datalen " ZBX_FS_SIZE_T, (zbx_fs_size_t)datalen);
recv_proxyconfig(sock, &jp);
}
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_AGENT_DATA) ||
0 == strcmp(value, ZBX_PROTO_VALUE_SENDER_DATA))
{
recv_agenthistory(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_HISTORY_DATA))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
recv_proxyhistory(sock, &jp);
else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY_PASSIVE))
send_proxyhistory(sock);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_DISCOVERY_DATA))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
recv_discovery_data(sock, &jp);
else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY_PASSIVE))
send_discovery_data(sock);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_AUTO_REGISTRATION_DATA))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
recv_areg_data(sock, &jp);
else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY_PASSIVE))
send_areg_data(sock);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_PROXY_HEARTBEAT))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
recv_proxy_heartbeat(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_GET_ACTIVE_CHECKS))
{
ret = send_list_of_active_checks_json(sock, &jp);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_HOST_AVAILABILITY))
{
if (0 != (daemon_type & ZBX_DAEMON_TYPE_SERVER))
recv_host_availability(sock, &jp);
else if (0 != (daemon_type & ZBX_DAEMON_TYPE_PROXY_PASSIVE))
send_host_availability(sock);
}
else if (0 == strcmp(value, ZBX_PROTO_VALUE_COMMAND))
{
ret = node_process_command(sock, s, &jp);
}
else
{
zabbix_log(LOG_LEVEL_WARNING, "Unknown request received [%s]",
value);
}
}
return ret;
}
/* XML protocol? */
else if (*s == '<')
{
comms_parse_response(s, av.host_name, sizeof(av.host_name), av.key, sizeof(av.key), value_dec, sizeof(value_dec),
lastlogsize, sizeof(lastlogsize), timestamp, sizeof(timestamp),
source, sizeof(source), severity, sizeof(severity));
av.value = value_dec;
av.lastlogsize = atoi(lastlogsize);
av.timestamp = atoi(timestamp);
av.source = source;
av.severity = atoi(severity);
}
else
{
pl = s;
if (NULL == (pr = strchr(pl, ':')))
return FAIL;
*pr = '\0';
zbx_strlcpy(av.host_name, pl, sizeof(av.host_name));
*pr = ':';
pl = pr + 1;
if (NULL == (pr = strchr(pl, ':')))
return FAIL;
*pr = '\0';
zbx_strlcpy(av.key, pl, sizeof(av.key));
*pr = ':';
av.value = pr + 1;
av.severity = 0;
}
av.clock = time(NULL);
process_mass_data(sock, 0, &av, 1, NULL);
alarm(CONFIG_TIMEOUT);
if (SUCCEED != zbx_tcp_send_raw(sock, SUCCEED == ret ? "OK" : "NOT OK"))
{
zabbix_log(LOG_LEVEL_WARNING, "Error sending result back");
zabbix_syslog("Trapper: error sending result back");
}
alarm(0);
}
return ret;
}
static int get_value(DC_ITEM *item, AGENT_RESULT *result)
{
const char *__function_name = "get_value";
int res = FAIL;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() key:'%s'", __function_name, item->key_orig);
switch (item->type)
{
case ITEM_TYPE_ZABBIX:
alarm(CONFIG_TIMEOUT);
res = get_value_agent(item, result);
alarm(0);
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
#ifdef HAVE_SNMP
alarm(CONFIG_TIMEOUT);
res = get_value_snmp(item, result);
alarm(0);
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Support for SNMP checks was not compiled in"));
res = NOTSUPPORTED;
#endif
break;
case ITEM_TYPE_IPMI:
#ifdef HAVE_OPENIPMI
res = get_value_ipmi(item, result);
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Support for IPMI checks was not compiled in"));
res = NOTSUPPORTED;
#endif
break;
case ITEM_TYPE_SIMPLE:
/* simple checks use their own timeouts */
res = get_value_simple(item, result);
break;
case ITEM_TYPE_INTERNAL:
res = get_value_internal(item, result);
break;
case ITEM_TYPE_DB_MONITOR:
alarm(CONFIG_TIMEOUT);
res = get_value_db(item, result);
alarm(0);
break;
case ITEM_TYPE_AGGREGATE:
res = get_value_aggregate(item, result);
break;
case ITEM_TYPE_EXTERNAL:
/* external checks use their own timeouts */
res = get_value_external(item, result);
break;
case ITEM_TYPE_SSH:
#ifdef HAVE_SSH2
alarm(CONFIG_TIMEOUT);
res = get_value_ssh(item, result);
alarm(0);
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Support for SSH checks was not compiled in"));
res = NOTSUPPORTED;
#endif /* HAVE_SSH2 */
break;
case ITEM_TYPE_TELNET:
alarm(CONFIG_TIMEOUT);
res = get_value_telnet(item, result);
alarm(0);
break;
case ITEM_TYPE_CALCULATED:
res = get_value_calculated(item, result);
break;
default:
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Not supported item type:%d", item->type));
res = NOTSUPPORTED;
}
if (SUCCEED != res)
{
if (!ISSET_MSG(result))
SET_MSG_RESULT(result, zbx_strdup(NULL, "ZBX_NOTSUPPORTED"));
zabbix_log(LOG_LEVEL_DEBUG, "Item [%s:%s] error: %s", item->host.host, item->key_orig, result->msg);
zabbix_syslog("Item [%s:%s] error: %s", item->host.host, item->key_orig, result->msg);
}
/* remove formatting characters from the end of the result */
/* so it could be checked by "is_uint64" and "is_double" functions */
/* when we try to get "int" or "float" values from "string" result */
if (ISSET_STR(result))
zbx_rtrim(result->str, " \r\n");
if (ISSET_TEXT(result))
zbx_rtrim(result->text, " \r\n");
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(res));
return res;
}
/******************************************************************************
* *
* Function: main_alerter_loop *
* *
* Purpose: periodically check table alerts and send notifications if needed *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: never returns *
* *
******************************************************************************/
int main_alerter_loop()
{
char error[MAX_STRING_LEN], *error_esc;
int res, now;
struct sigaction phan;
DB_RESULT result;
DB_ROW row;
DB_ALERT alert;
DB_MEDIATYPE mediatype;
/* phan.sa_handler = child_signal_handler;*/
phan.sa_sigaction = child_signal_handler;
sigemptyset(&phan.sa_mask);
phan.sa_flags = SA_SIGINFO;
sigaction(SIGALRM, &phan, NULL);
zbx_setproctitle("connecting to the database");
DBconnect(ZBX_DB_CONNECT_NORMAL);
for (;;) {
now = time(NULL);
result = DBselect("select a.alertid,a.mediatypeid,a.sendto,a.subject,a.message,a.status,mt.mediatypeid"
",mt.type,mt.description,mt.smtp_server,mt.smtp_helo,mt.smtp_email,mt.exec_path"
",mt.gsm_modem,mt.username,mt.passwd,a.retries from alerts a,media_type mt"
" where a.status=%d and a.mediatypeid=mt.mediatypeid and a.alerttype=%d" DB_NODE
" order by a.clock",
ALERT_STATUS_NOT_SENT,
ALERT_TYPE_MESSAGE,
DBnode_local("mt.mediatypeid"));
while (NULL != (row = DBfetch(result))) {
res = FAIL;
ZBX_STR2UINT64(alert.alertid, row[0]);
alert.mediatypeid = atoi(row[1]);
alert.sendto = row[2];
alert.subject = row[3];
alert.message = row[4];
alert.status = atoi(row[5]);
ZBX_STR2UINT64(mediatype.mediatypeid, row[6]);
mediatype.type = atoi(row[7]);
mediatype.description = row[8];
mediatype.smtp_server = row[9];
mediatype.smtp_helo = row[10];
mediatype.smtp_email = row[11];
mediatype.exec_path = row[12];
mediatype.gsm_modem = row[13];
mediatype.username = row[14];
mediatype.passwd = row[15];
alert.retries = atoi(row[16]);
*error = '\0';
res = execute_action(&alert, &mediatype, error, sizeof(error));
if (res == SUCCEED)
{
zabbix_log( LOG_LEVEL_DEBUG, "Alert ID [" ZBX_FS_UI64 "] was sent successfully",
alert.alertid);
DBexecute("update alerts set status=%d,error='' where alertid=" ZBX_FS_UI64,
ALERT_STATUS_SENT,
alert.alertid);
}
else
{
zabbix_log( LOG_LEVEL_DEBUG, "Error sending alert ID [" ZBX_FS_UI64 "]",
alert.alertid);
zabbix_syslog("Error sending alert ID [" ZBX_FS_UI64 "]",
alert.alertid);
error_esc = DBdyn_escape_string_len(error, ALERT_ERROR_LEN);
alert.retries++;
if(alert.retries < ALERT_MAX_RETRIES)
{
DBexecute("update alerts set retries=%d,error='%s' where alertid=" ZBX_FS_UI64,
alert.retries,
error_esc,
alert.alertid);
}
else
{
DBexecute("update alerts set status=%d,retries=%d,error='%s' where alertid=" ZBX_FS_UI64,
ALERT_STATUS_FAILED,
alert.retries,
error_esc,
alert.alertid);
}
zbx_free(error_esc);
}
}
DBfree_result(result);
zbx_setproctitle("sender [sleeping for %d seconds]",
CONFIG_SENDER_FREQUENCY);
sleep(CONFIG_SENDER_FREQUENCY);
}
/* Never reached */
DBclose();
}
/*
* Send email
*/
int send_email(char *smtp_server,char *smtp_helo,char *smtp_email,char *mailto,char *mailsubject,char *mailbody, char *error, int max_error_len)
{
int ret=SUCCEED;
zbx_sock_t s;
int i,e;
char c[MAX_STRING_LEN], *cp = NULL;
char str_time[MAX_STRING_LEN];
struct tm *local_time = NULL;
time_t email_time;
char *OK_220="220";
char *OK_250="250";
char *OK_251="251";
char *OK_354="354";
zabbix_log( LOG_LEVEL_DEBUG, "In send_email[smtp_server:%s]", smtp_server);
if(FAIL == zbx_tcp_connect(&s, smtp_server, 25, 0, NULL))
{
zbx_snprintf(error,max_error_len,"Cannot connect to SMTP server [%s] [%s]", smtp_server, zbx_tcp_strerror());
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s",error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receiving initial string from SMTP server [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strncmp(OK_220,c,strlen(OK_220)) != 0)
{
zbx_snprintf(error,max_error_len,"No welcome message 220* from SMTP server [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strlen(smtp_helo) != 0)
{
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"HELO %s\r\n",smtp_helo);
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending HELO to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receiving answer on HELO request [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strncmp(OK_250,c,strlen(OK_250)) != 0)
{
zbx_snprintf(error,max_error_len,"Wrong answer on HELO [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s",error);
zabbix_syslog("%s",error);
ret=FAIL;
goto out;
}
}
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"MAIL FROM: <%s>\r\n",smtp_email);
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending MAIL FROM to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receiving answer on MAIL FROM request [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strncmp(OK_250,c,strlen(OK_250)) != 0)
{
zbx_snprintf(error,max_error_len,"Wrong answer on MAIL FROM [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"RCPT TO: <%s>\r\n",mailto);
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending RCPT TO to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receiving answer on RCPT TO request [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
/* May return 251 as well: User not local; will forward to <forward-path>. See RFC825 */
if( strncmp(OK_250,c,strlen(OK_250)) != 0 && strncmp(OK_251,c,strlen(OK_251)) != 0)
{
zbx_snprintf(error,max_error_len,"Wrong answer on RCPT TO [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"DATA\r\n");
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending DATA to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receivng answer on DATA request [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strncmp(OK_354,c,strlen(OK_354)) != 0)
{
zbx_snprintf(error,max_error_len,"Wrong answer on DATA [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
cp = string_replace(mailsubject, "\r\n", "\n");
mailsubject = string_replace(cp, "\n", "\r\n");
zbx_free(cp);
cp = string_replace(mailbody, "\r\n", "\n");
mailbody = string_replace(cp, "\n", "\r\n");
zbx_free(cp);
memset(c,0,MAX_STRING_LEN);
time(&email_time);
local_time = localtime(&email_time);
strftime( str_time, MAX_STRING_LEN, "%a, %d %b %Y %H:%M:%S %z", local_time );
cp = zbx_dsprintf(cp,"From:<%s>\r\nTo:<%s>\r\nDate: %s\r\nSubject: %s\r\n\r\n%s",smtp_email,mailto,str_time,mailsubject, mailbody);
e=write(s.socket,cp,strlen(cp));
zbx_free(cp);
zbx_free(mailsubject);
zbx_free(mailbody);
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending mail subject and body to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"\r\n.\r\n");
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending . to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s",error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
i=read(s.socket,c,MAX_STRING_LEN);
if(i == -1)
{
zbx_snprintf(error,max_error_len,"Error receivng answer on . request [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s", error);
ret=FAIL;
goto out;
}
if(strncmp(OK_250,c,strlen(OK_250)) != 0)
{
zbx_snprintf(error,max_error_len,"Wrong answer on end of data [%s]", c);
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s",error);
ret=FAIL;
goto out;
}
memset(c,0,MAX_STRING_LEN);
zbx_snprintf(c,sizeof(c),"QUIT\r\n");
e=write(s.socket,c,strlen(c));
if(e == -1)
{
zbx_snprintf(error,max_error_len,"Error sending QUIT to mailserver [%s]", strerror(errno));
zabbix_log(LOG_LEVEL_DEBUG, "%s", error);
zabbix_syslog("%s",error);
ret=FAIL;
goto out;
}
out:
zbx_tcp_close(&s);
return ret;
}
/******************************************************************************
* *
* Function: get_values *
* *
* Purpose: retrieve values of metrics from monitored hosts *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: always SUCCEED *
* *
******************************************************************************/
static int get_values(int now, int *nextcheck)
{
DB_RESULT result;
DB_RESULT result2;
DB_ROW row;
DB_ROW row2;
int delay;
int res;
DB_ITEM item;
AGENT_RESULT agent;
int stop = 0, items = 0;
static char *unreachable_hosts = NULL;
static int unreachable_hosts_alloc = 32;
int unreachable_hosts_offset = 0;
char istatus[16];
zabbix_log( LOG_LEVEL_DEBUG, "In get_values()");
if (0 != CONFIG_DBSYNCER_FORKS)
DCinit_nextchecks();
now = time(NULL);
*nextcheck = FAIL;
if (NULL == unreachable_hosts)
unreachable_hosts = zbx_malloc(unreachable_hosts, unreachable_hosts_alloc);
*unreachable_hosts = '\0';
if (0 != CONFIG_REFRESH_UNSUPPORTED)
zbx_snprintf(istatus, sizeof(istatus), "%d,%d",
ITEM_STATUS_ACTIVE,
ITEM_STATUS_NOTSUPPORTED);
else
zbx_snprintf(istatus, sizeof(istatus), "%d",
ITEM_STATUS_ACTIVE);
switch (poller_type) {
case ZBX_POLLER_TYPE_UNREACHABLE:
result = DBselect("select h.hostid,min(i.itemid) from hosts h,items i"
" where " ZBX_SQL_MOD(h.hostid,%d) "=%d and i.nextcheck<=%d and i.status in (%d)"
" and i.type in (%d,%d,%d,%d,%d) and h.status=%d and h.disable_until<=%d"
" and h.errors_from!=0 and h.hostid=i.hostid and (h.proxy_hostid=0 or i.type in (%d))"
" and i.key_ not in ('%s','%s','%s','%s') and (h.maintenance_status=%d or h.maintenance_type=%d)"
DB_NODE " group by h.hostid",
CONFIG_UNREACHABLE_POLLER_FORKS,
poller_num-1,
now + POLLER_DELAY,
ITEM_STATUS_ACTIVE,
ITEM_TYPE_ZABBIX, ITEM_TYPE_SNMPv1, ITEM_TYPE_SNMPv2c, ITEM_TYPE_SNMPv3, ITEM_TYPE_IPMI,
HOST_STATUS_MONITORED,
now,
ITEM_TYPE_INTERNAL,
SERVER_STATUS_KEY, SERVER_ICMPPING_KEY, SERVER_ICMPPINGSEC_KEY, SERVER_ZABBIXLOG_KEY,
HOST_MAINTENANCE_STATUS_OFF, MAINTENANCE_TYPE_NORMAL,
DBnode_local("h.hostid"));
break;
case ZBX_POLLER_TYPE_IPMI:
result = DBselect("select %s where i.nextcheck<=%d and i.status in (%s)"
" and i.type in (%d) and h.status=%d and h.disable_until<=%d"
" and h.errors_from=0 and h.hostid=i.hostid and (h.proxy_hostid=0 or i.type in (%d))"
" and " ZBX_SQL_MOD(h.hostid,%d) "=%d and i.key_ not in ('%s','%s','%s','%s')"
" and (h.maintenance_status=%d or h.maintenance_type=%d)" DB_NODE " order by i.nextcheck",
ZBX_SQL_ITEM_SELECT,
now + POLLER_DELAY,
istatus,
ITEM_TYPE_IPMI,
HOST_STATUS_MONITORED,
now,
ITEM_TYPE_INTERNAL,
CONFIG_IPMIPOLLER_FORKS,
poller_num-1,
SERVER_STATUS_KEY, SERVER_ICMPPING_KEY, SERVER_ICMPPINGSEC_KEY, SERVER_ZABBIXLOG_KEY,
HOST_MAINTENANCE_STATUS_OFF, MAINTENANCE_TYPE_NORMAL,
DBnode_local("h.hostid"));
break;
default: /* ZBX_POLLER_TYPE_NORMAL */
result = DBselect("select %s where i.nextcheck<=%d and h.hostid=i.hostid and h.status=%d and i.status in (%s)"
" and ((h.disable_until<=%d and h.errors_from=0 and i.type in (%d,%d,%d,%d)) or i.type in (%d,%d,%d,%d,%d))"
" and (h.proxy_hostid=0 or i.type in (%d))"
" and " ZBX_SQL_MOD(i.itemid,%d) "=%d and i.key_ not in ('%s','%s','%s','%s')"
" and (h.maintenance_status=%d or h.maintenance_type=%d)" DB_NODE " order by i.nextcheck",
ZBX_SQL_ITEM_SELECT,
now + POLLER_DELAY,
HOST_STATUS_MONITORED,
istatus,
now,
ITEM_TYPE_ZABBIX, ITEM_TYPE_SNMPv1, ITEM_TYPE_SNMPv2c, ITEM_TYPE_SNMPv3,
ITEM_TYPE_SIMPLE, ITEM_TYPE_INTERNAL, ITEM_TYPE_AGGREGATE, ITEM_TYPE_EXTERNAL, ITEM_TYPE_DB_MONITOR,
ITEM_TYPE_INTERNAL,
CONFIG_POLLER_FORKS,
poller_num-1,
SERVER_STATUS_KEY, SERVER_ICMPPING_KEY, SERVER_ICMPPINGSEC_KEY, SERVER_ZABBIXLOG_KEY,
HOST_MAINTENANCE_STATUS_OFF, MAINTENANCE_TYPE_NORMAL,
DBnode_local("h.hostid"));
}
/* Do not stop when select is made by poller for unreachable hosts */
while((row=DBfetch(result))&&(stop==0 || poller_type == ZBX_POLLER_TYPE_UNREACHABLE))
{
/* This code is just to avoid compilation warining about use of uninitialized result2 */
result2 = result;
/* */
/* Poller for unreachable hosts */
if(poller_type == ZBX_POLLER_TYPE_UNREACHABLE)
{
result2 = DBselect("select %s where h.hostid=i.hostid and h.proxy_hostid=0 and i.itemid=%s" DB_NODE,
ZBX_SQL_ITEM_SELECT,
row[1],
DBnode_local("h.hostid"));
row2 = DBfetch(result2);
if(!row2)
{
DBfree_result(result2);
continue;
}
DBget_item_from_db(&item,row2);
}
else
{
DBget_item_from_db(&item,row);
/* Skip unreachable hosts but do not break the loop. */
if(uint64_in_list(unreachable_hosts,item.hostid) == SUCCEED)
{
zabbix_log( LOG_LEVEL_DEBUG, "Host " ZBX_FS_UI64 " is unreachable. Skipping [%s]",
item.hostid,item.key);
continue;
}
}
if (item.nextcheck > time(NULL))
{
if (*nextcheck == FAIL || (item.nextcheck != 0 && *nextcheck > item.nextcheck))
*nextcheck = item.nextcheck;
if (poller_type == ZBX_POLLER_TYPE_UNREACHABLE)
DBfree_result(result2);
continue;
}
init_result(&agent);
res = get_value(&item, &agent);
now = time(NULL);
if (res == SUCCEED)
{
if (HOST_AVAILABLE_TRUE != item.host_available)
{
DBbegin();
enable_host(&item, now);
stop = 1;
DBcommit();
}
if (item.host_errors_from != 0)
{
DBbegin();
DBexecute("update hosts set errors_from=0 where hostid=" ZBX_FS_UI64,
item.hostid);
stop = 1;
DBcommit();
}
if (0 == CONFIG_DBSYNCER_FORKS)
DBbegin();
switch (zbx_process) {
case ZBX_PROCESS_SERVER:
process_new_value(&item, &agent, now);
break;
case ZBX_PROCESS_PROXY:
proxy_process_new_value(&item, &agent, now);
break;
}
if (0 == CONFIG_DBSYNCER_FORKS)
DBcommit();
if (0 != CONFIG_DBSYNCER_FORKS)
DCadd_nextcheck(&item, now, 0, NULL);
if (poller_type == ZBX_POLLER_TYPE_NORMAL || poller_type == ZBX_POLLER_TYPE_IPMI)
if (*nextcheck == FAIL || (item.nextcheck != 0 && *nextcheck > item.nextcheck))
*nextcheck = item.nextcheck;
}
else if (res == NOTSUPPORTED || res == AGENT_ERROR)
{
if (item.status != ITEM_STATUS_NOTSUPPORTED)
{
zabbix_log(LOG_LEVEL_WARNING, "Parameter [%s] is not supported by agent on host [%s] Old status [%d]",
item.key,
item.host_name,
item.status);
zabbix_syslog("Parameter [%s] is not supported by agent on host [%s]",
item.key,
item.host_name);
}
if (0 == CONFIG_DBSYNCER_FORKS)
{
DBbegin();
DBupdate_item_status_to_notsupported(&item, now, agent.msg);
DBcommit();
}
else
DCadd_nextcheck(&item, now, 0, agent.msg);
if (poller_type == ZBX_POLLER_TYPE_UNREACHABLE)
if (*nextcheck == FAIL || (item.nextcheck != 0 && *nextcheck > item.nextcheck))
*nextcheck = item.nextcheck;
if (HOST_AVAILABLE_TRUE != item.host_available) {
DBbegin();
enable_host(&item, now);
stop = 1;
DBcommit();
}
}
else if (res == NETWORK_ERROR)
{
DBbegin();
/* First error */
if (item.host_errors_from == 0)
{
zabbix_log( LOG_LEVEL_WARNING, "Host [%s]: first network error, wait for %d seconds",
item.host_name,
CONFIG_UNREACHABLE_DELAY);
zabbix_syslog("Host [%s]: first network error, wait for %d seconds",
item.host_name,
CONFIG_UNREACHABLE_DELAY);
DBexecute("update hosts set errors_from=%d,disable_until=%d where hostid=" ZBX_FS_UI64,
now,
now + CONFIG_UNREACHABLE_DELAY,
item.hostid);
item.host_errors_from = now;
delay = MIN(4*item.delay, 300);
zabbix_log(LOG_LEVEL_WARNING, "Parameter [%s] will be checked after %d seconds on host [%s]",
item.key,
delay,
item.host_name);
DBexecute("update items set nextcheck=%d where itemid=" ZBX_FS_UI64,
now + delay,
item.itemid);
}
else
{
if (now - item.host_errors_from > CONFIG_UNREACHABLE_PERIOD)
{
disable_host(&item, now, agent.msg);
}
else
{
/* Still unavailable, but won't change status to UNAVAILABLE yet */
zabbix_log(LOG_LEVEL_WARNING, "Host [%s]: another network error, wait for %d seconds",
item.host_name,
CONFIG_UNREACHABLE_DELAY);
zabbix_syslog("Host [%s]: another network error, wait for %d seconds",
item.host_name,
CONFIG_UNREACHABLE_DELAY);
DBexecute("update hosts set disable_until=%d where hostid=" ZBX_FS_UI64,
now + CONFIG_UNREACHABLE_DELAY,
item.hostid);
}
}
DBcommit();
zbx_snprintf_alloc(&unreachable_hosts, &unreachable_hosts_alloc, &unreachable_hosts_offset, 32,
"%s" ZBX_FS_UI64,
0 == unreachable_hosts_offset ? "" : ",",
item.hostid);
}
else
{
zabbix_log(LOG_LEVEL_CRIT, "Unknown response code returned.");
assert(0==1);
}
items++;
/* Poller for unreachable hosts */
if (poller_type == ZBX_POLLER_TYPE_UNREACHABLE)
{
/* We cannot freeit earlier because items has references to the structure */
DBfree_result(result2);
}
free_result(&agent);
}
DBfree_result(result);
if (0 != CONFIG_DBSYNCER_FORKS)
DCflush_nextchecks();
zabbix_log(LOG_LEVEL_DEBUG, "End get_values()");
return items;
}
/******************************************************************************
* *
* Function: get_values *
* *
* Purpose: retrieve values of metrics from monitored hosts *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexei Vladishev *
* *
* Comments: always SUCCEED *
* *
******************************************************************************/
static int get_values(unsigned char poller_type)
{
const char *__function_name = "get_values";
DC_ITEM items[MAX_REACHABLE_ITEMS];
AGENT_RESULT agent;
zbx_uint64_t *ids = NULL, *snmpids = NULL, *ipmiids = NULL;
int ids_alloc = 0, snmpids_alloc = 0, ipmiids_alloc = 0,
ids_num = 0, snmpids_num = 0, ipmiids_num = 0,
i, now, num, res;
static char *key = NULL, *ipmi_ip = NULL, *params = NULL,
*username = NULL, *publickey = NULL, *privatekey = NULL,
*password = NULL, *snmp_community = NULL, *snmp_oid = NULL,
*snmpv3_securityname = NULL, *snmpv3_authpassphrase = NULL,
*snmpv3_privpassphrase = NULL;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
DCinit_nextchecks();
num = DCconfig_get_poller_items(poller_type, items, ZBX_POLLER_TYPE_UNREACHABLE != poller_type
? MAX_REACHABLE_ITEMS : MAX_UNREACHABLE_ITEMS);
for (i = 0; i < num; i++)
{
zbx_free(key);
key = strdup(items[i].key_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&key, MACRO_TYPE_ITEM_KEY, NULL, 0);
items[i].key = key;
switch (items[i].type)
{
case ITEM_TYPE_SNMPv3:
zbx_free(snmpv3_securityname);
zbx_free(snmpv3_authpassphrase);
zbx_free(snmpv3_privpassphrase);
snmpv3_securityname = strdup(items[i].snmpv3_securityname_orig);
snmpv3_authpassphrase = strdup(items[i].snmpv3_authpassphrase_orig);
snmpv3_privpassphrase = strdup(items[i].snmpv3_privpassphrase_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&snmpv3_securityname, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&snmpv3_authpassphrase, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&snmpv3_privpassphrase, MACRO_TYPE_ITEM_FIELD, NULL, 0);
items[i].snmpv3_securityname = snmpv3_securityname;
items[i].snmpv3_authpassphrase = snmpv3_authpassphrase;
items[i].snmpv3_privpassphrase = snmpv3_privpassphrase;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
zbx_free(snmp_community);
zbx_free(snmp_oid);
snmp_community = strdup(items[i].snmp_community_orig);
snmp_oid = strdup(items[i].snmp_oid_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&snmp_community, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&snmp_oid, MACRO_TYPE_ITEM_FIELD, NULL, 0);
items[i].snmp_community = snmp_community;
items[i].snmp_oid = snmp_oid;
break;
case ITEM_TYPE_IPMI:
zbx_free(ipmi_ip);
ipmi_ip = strdup(items[i].host.ipmi_ip_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&ipmi_ip, MACRO_TYPE_HOST_IPMI_IP, NULL, 0);
items[i].host.ipmi_ip = ipmi_ip;
break;
case ITEM_TYPE_DB_MONITOR:
zbx_free(params);
params = strdup(items[i].params_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
¶ms, MACRO_TYPE_ITEM_FIELD, NULL, 0);
items[i].params = params;
break;
case ITEM_TYPE_SSH:
zbx_free(username);
zbx_free(publickey);
zbx_free(privatekey);
zbx_free(password);
zbx_free(params);
username = strdup(items[i].username_orig);
publickey = strdup(items[i].publickey_orig);
privatekey = strdup(items[i].privatekey_orig);
password = strdup(items[i].password_orig);
params = strdup(items[i].params_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&username, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&publickey, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&privatekey, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&password, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
¶ms, MACRO_TYPE_ITEM_FIELD, NULL, 0);
items[i].username = username;
items[i].publickey = publickey;
items[i].privatekey = privatekey;
items[i].password = password;
items[i].params = params;
break;
case ITEM_TYPE_TELNET:
zbx_free(username);
zbx_free(password);
zbx_free(params);
username = strdup(items[i].username_orig);
password = strdup(items[i].password_orig);
params = strdup(items[i].params_orig);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&username, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
&password, MACRO_TYPE_ITEM_FIELD, NULL, 0);
substitute_simple_macros(NULL, NULL, NULL, &items[i], NULL,
¶ms, MACRO_TYPE_ITEM_FIELD, NULL, 0);
items[i].username = username;
items[i].password = password;
items[i].params = params;
break;
}
/* Skip unreachable hosts but do not break the loop. */
switch (items[i].type)
{
case ITEM_TYPE_ZABBIX:
if (SUCCEED == uint64_array_exists(ids, ids_num, items[i].host.hostid))
{
DCrequeue_unreachable_item(items[i].itemid);
zabbix_log(LOG_LEVEL_DEBUG, "Zabbix Host " ZBX_FS_UI64 " is unreachable. Skipping [%s]",
items[i].host.hostid, items[i].key_orig);
continue;
}
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
if (SUCCEED == uint64_array_exists(snmpids, snmpids_num, items[i].host.hostid))
{
DCrequeue_unreachable_item(items[i].itemid);
zabbix_log(LOG_LEVEL_DEBUG, "SNMP Host " ZBX_FS_UI64 " is unreachable. Skipping [%s]",
items[i].host.hostid, items[i].key_orig);
continue;
}
break;
case ITEM_TYPE_IPMI:
if (SUCCEED == uint64_array_exists(ipmiids, ipmiids_num, items[i].host.hostid))
{
DCrequeue_unreachable_item(items[i].itemid);
zabbix_log(LOG_LEVEL_DEBUG, "IPMI Host " ZBX_FS_UI64 " is unreachable. Skipping [%s]",
items[i].host.hostid, items[i].key_orig);
continue;
}
break;
default:
/* nothing to do */;
}
init_result(&agent);
res = get_value(&items[i], &agent);
now = time(NULL);
if (res == SUCCEED)
{
activate_host(&items[i], now);
dc_add_history(items[i].itemid, items[i].value_type, &agent, now, 0, NULL, 0, 0, 0, 0);
DCrequeue_reachable_item(items[i].itemid, ITEM_STATUS_ACTIVE, now);
}
else if (res == NOTSUPPORTED || res == AGENT_ERROR)
{
if (ITEM_STATUS_NOTSUPPORTED != items[i].status)
{
zabbix_log(LOG_LEVEL_WARNING, "Item [%s:%s] is not supported",
items[i].host.host, items[i].key_orig);
zabbix_syslog("Item [%s:%s] is not supported",
items[i].host.host, items[i].key_orig);
}
activate_host(&items[i], now);
DCadd_nextcheck(items[i].itemid, now, agent.msg); /* update error & status field in items table */
DCrequeue_reachable_item(items[i].itemid, ITEM_STATUS_NOTSUPPORTED, now);
}
else if (res == NETWORK_ERROR)
{
deactivate_host(&items[i], now, agent.msg);
switch (items[i].type)
{
case ITEM_TYPE_ZABBIX:
uint64_array_add(&ids, &ids_alloc, &ids_num, items[i].host.hostid, 1);
break;
case ITEM_TYPE_SNMPv1:
case ITEM_TYPE_SNMPv2c:
case ITEM_TYPE_SNMPv3:
uint64_array_add(&snmpids, &snmpids_alloc, &snmpids_num, items[i].host.hostid, 1);
break;
case ITEM_TYPE_IPMI:
uint64_array_add(&ipmiids, &ipmiids_alloc, &ipmiids_num, items[i].host.hostid, 1);
break;
default:
/* nothing to do */;
}
DCrequeue_unreachable_item(items[i].itemid);
}
else
{
zbx_error("unknown response code returned: %d", res);
assert(0);
}
free_result(&agent);
}
zbx_free(key);
zbx_free(ipmi_ip);
zbx_free(params);
zbx_free(username);
zbx_free(publickey);
zbx_free(privatekey);
zbx_free(password);
zbx_free(snmp_community);
zbx_free(snmp_oid);
zbx_free(snmpv3_securityname);
zbx_free(snmpv3_authpassphrase);
zbx_free(snmpv3_privpassphrase);
zbx_free(ids);
zbx_free(snmpids);
zbx_free(ipmiids);
DCflush_nextchecks();
zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __function_name);
return num;
}