Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxsnmptrapper.h"

​

#include "zbxtimekeeper.h"

#include "zbxthreads.h"

#include "zbxalgo.h"

#include "zbxcacheconfig.h"

#include "zbxdb.h"

#include "zbxdbhigh.h"

#include "zbxstr.h"

#include "zbxexpression.h"

#include "zbxself.h"

#include "zbxnix.h"

#include "zbxlog.h"

#include "zbxregexp.h"

#include "zbxnum.h"

#include "zbxtime.h"

#include "zbxsysinfo.h"

#include "zbx_item_constants.h"

#include "zbxpreproc.h"

#include "zbxcrypto.h"

#include "zbxhash.h"

​

static int  trap_fd = -1;

static off_t    trap_lastsize;

static ino_t    trap_ino = 0;

static char *buffer = NULL;

static int  offset = 0;

static int  force = 0;

​

static void db_update_lastsize(void)

{

    zbx_db_begin();

    zbx_db_execute("update globalvars set value=" ZBX_FS_I64 " where name='snmp_lastsize'",

            (zbx_int64_t)trap_lastsize);

    zbx_db_commit();

}

​

/******************************************************************************

 *                                                                            *

 * Purpose: adds trap to all matching items for specified interface           *

 *                                                                            *

 * Return value: SUCCEED - matching item was found                            *

 *               FAIL - no matching item was found (including fallback items) *

 *                                                                            *

 ******************************************************************************/

static int  process_trap_for_interface(zbx_uint64_t interfaceid, char *trap, zbx_timespec_t *ts)

{

    zbx_dc_item_t       *items = NULL;

    const char      *regex;

    char            error[ZBX_ITEM_ERROR_LEN_MAX];

    int         ret = FAIL, fb = -1, value_type, regexp_ret;

    AGENT_REQUEST       request;

    zbx_vector_expression_t regexps;

    zbx_dc_um_handle_t  *um_handle;

​

    zbx_vector_expression_create(&regexps);

​

    um_handle = zbx_dc_open_user_macros();

​

    size_t          num = zbx_dc_config_get_snmp_items_by_interfaceid(interfaceid, &items);

    zbx_uint64_t        *itemids = (zbx_uint64_t *)zbx_malloc(NULL, sizeof(zbx_uint64_t) * num);

    int         *lastclocks = (int *)zbx_malloc(NULL, sizeof(int) * num),

                *errcodes = (int *)zbx_malloc(NULL, sizeof(int) * num);

    AGENT_RESULT        *results = (AGENT_RESULT *)zbx_malloc(NULL, sizeof(AGENT_RESULT) * num);

​

    for (size_t i = 0; i < num; i++)

    {

        zbx_init_agent_result(&results[i]);

        errcodes[i] = FAIL;

​

        items[i].key = zbx_strdup(items[i].key, items[i].key_orig);

        if (SUCCEED != zbx_substitute_key_macros(&items[i].key, NULL, &items[i], NULL, NULL,

                ZBX_MACRO_TYPE_ITEM_KEY, error, sizeof(error)))

        {

            SET_MSG_RESULT(&results[i], zbx_strdup(NULL, error));

            errcodes[i] = NOTSUPPORTED;

            continue;