Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "zbxdbwrap.h"

​

#include "zbxdbhigh.h"

#include "log.h"

#include "zbxsysinfo.h"

#include "zbxserver.h"

#include "zbxtasks.h"

#include "zbxdiscovery.h"

#include "zbxalgo.h"

#include "preproc.h"

#include "zbxcrypto.h"

#include "zbxlld.h"

#include "events.h"

#include "zbxavailability.h"

#include "zbxcommshigh.h"

#include "zbxnum.h"

#include "zbxtime.h"

#include "zbxip.h"

#include "version.h"

#include "zbxversion.h"

#include "zbx_host_constants.h"

#include "zbx_item_constants.h"

#include "zbxcachehistory.h"

​

extern char *CONFIG_SERVER;

​

/* the space reserved in json buffer to hold at least one record plus service data */

#define ZBX_DATA_JSON_RESERVED      (ZBX_HISTORY_TEXT_VALUE_LEN * 4 + ZBX_KIBIBYTE * 4)

​

#define ZBX_DATA_JSON_RECORD_LIMIT  (ZBX_MAX_RECV_DATA_SIZE - ZBX_DATA_JSON_RESERVED)

#define ZBX_DATA_JSON_BATCH_LIMIT   ((ZBX_MAX_RECV_DATA_SIZE - ZBX_DATA_JSON_RESERVED) / 2)

​

/* the maximum number of values processed in one batch */

#define ZBX_HISTORY_VALUES_MAX      256

​

typedef struct

{

    zbx_uint64_t        druleid;

    zbx_vector_uint64_t dcheckids;

    zbx_vector_ptr_t    ips;

}

zbx_drule_t;

​

typedef struct

{

    char            ip[ZBX_INTERFACE_IP_LEN_MAX];

    zbx_vector_ptr_t    services;

}

zbx_drule_ip_t;

​

typedef struct

{

    const char      *field;

    const char      *tag;

    zbx_json_type_t     jt;

    const char      *default_value;

}

zbx_history_field_t;

​

typedef struct

{

    const char      *table, *lastidfield;

    zbx_history_field_t fields[ZBX_MAX_FIELDS];

}

zbx_history_table_t;

​

typedef int (*zbx_client_item_validator_t)(zbx_history_recv_item_t *item, zbx_socket_t *sock, void *args,

        char **error);

​

typedef struct

{

    zbx_uint64_t    hostid;