Zabbix

/*

** 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 General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#include "common.h"

#include "sysinfo.h"

#include "zbxjson.h"

#include "log.h"

​

#include <sys/ioctl.h>

#include <sys/sockio.h>

​

#if OpenBSD >= 201405           /* if OpenBSD 5.5 or newer */

#   if OpenBSD >= 201510        /* if Openbsd 5.8 or newer */

#       include <sys/malloc.h>  /* Workaround: include malloc.h here without _KERNEL to prevent its */

                    /* inclusion later from if_var.h to avoid malloc() and free() redefinition. */

#       define _KERNEL  /* define _KERNEL to enable 'ifnet' and 'ifnet_head' definitions in if_var.h */

#   endif

#   include <net/if_var.h>  /* structs ifnet and ifnet_head are defined in this header since OpenBSD 5.5 */

#endif

​

static struct nlist kernel_symbols[] =

{

    {"_ifnet", N_UNDF, 0, 0, 0},

    {"_tcbtable", N_UNDF, 0, 0, 0},

    {NULL, 0, 0, 0, 0}

};

​

#define IFNET_ID 0

​

static int  get_ifdata(const char *if_name,

        zbx_uint64_t *ibytes, zbx_uint64_t *ipackets, zbx_uint64_t *ierrors, zbx_uint64_t *idropped,

        zbx_uint64_t *obytes, zbx_uint64_t *opackets, zbx_uint64_t *oerrors,

        zbx_uint64_t *tbytes, zbx_uint64_t *tpackets, zbx_uint64_t *terrors,

        zbx_uint64_t *icollisions, char **error)

{

    struct ifnet_head   head;

    struct ifnet        *ifp;

​

    kvm_t   *kp;

    int len = 0;

    int ret = SYSINFO_RET_FAIL;

​

    if (NULL == if_name || '\0' == *if_name)

    {

        *error = zbx_strdup(NULL, "Network interface name cannot be empty.");

        return SYSINFO_RET_FAIL;

    }

​

    /* if(i)_ibytes;    total number of octets received */

    /* if(i)_ipackets;  packets received on interface */

    /* if(i)_ierrors;   input errors on interface */

    /* if(i)_iqdrops;   dropped on input, this interface */

    /* if(i)_obytes;    total number of octets sent */

    /* if(i)_opackets;  packets sent on interface */

    /* if(i)_oerrors;   output errors on interface */

    /* if(i)_collisions;    collisions on csma interfaces */

​

    if (ibytes)

        *ibytes = 0;

    if (ipackets)

        *ipackets = 0;

    if (ierrors)

        *ierrors = 0;

    if (idropped)

        *idropped = 0;

    if (obytes)

        *obytes = 0;

    if (opackets)

        *opackets = 0;

    if (oerrors)

        *oerrors = 0;

    if (tbytes)

        *tbytes = 0;

    if (tpackets)

        *tpackets = 0;