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/*
** Zabbix
** Copyright (C) 2001-2022 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 "zbxsysinfo.h"
#include "../sysinfo.h"
#include "zbxjson.h"
#include "log.h"
#include "zbxstr.h"
typedef struct
{
zbx_uint64_t ibytes;
zbx_uint64_t ipackets;
zbx_uint64_t ierr;
zbx_uint64_t obytes;
zbx_uint64_t opackets;
zbx_uint64_t oerr;
zbx_uint64_t colls;
}
net_stat_t;
static int get_net_stat(const char *if_name, net_stat_t *ns, char **error)
{
#if defined(HAVE_LIBPERFSTAT)
perfstat_id_t ps_id;
perfstat_netinterface_t ps_netif;
if (NULL == if_name || '\0' == *if_name)
{
*error = zbx_strdup(NULL, "Network interface name cannot be empty.");
return SYSINFO_RET_FAIL;
}
zbx_strscpy(ps_id.name, if_name);
if (-1 == perfstat_netinterface(&ps_id, &ps_netif, sizeof(ps_netif), 1))
{
*error = zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno));
return SYSINFO_RET_FAIL;
}
ns->ibytes = (zbx_uint64_t)ps_netif.ibytes;
ns->ipackets = (zbx_uint64_t)ps_netif.ipackets;
ns->ierr = (zbx_uint64_t)ps_netif.ierrors;
ns->obytes = (zbx_uint64_t)ps_netif.obytes;
ns->opackets = (zbx_uint64_t)ps_netif.opackets;
ns->oerr = (zbx_uint64_t)ps_netif.oerrors;
ns->colls = (zbx_uint64_t)ps_netif.collisions;
return SYSINFO_RET_OK;
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));
return SYSINFO_RET_FAIL;
#endif
}
int net_if_in(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *if_name, *mode, *error;
net_stat_t ns;
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
if_name = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (SYSINFO_RET_FAIL == get_net_stat(if_name, &ns, &error))
{
SET_MSG_RESULT(result, error);
return SYSINFO_RET_FAIL;
}
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "bytes"))
SET_UI64_RESULT(result, ns.ibytes);
else if (0 == strcmp(mode, "packets"))
SET_UI64_RESULT(result, ns.ipackets);
else if (0 == strcmp(mode, "errors"))
SET_UI64_RESULT(result, ns.ierr);
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
return SYSINFO_RET_OK;
}
int net_if_out(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *if_name, *mode, *error;
net_stat_t ns;
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
if_name = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (SYSINFO_RET_FAIL == get_net_stat(if_name, &ns, &error))
{
SET_MSG_RESULT(result, error);
return SYSINFO_RET_FAIL;
}
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "bytes"))
SET_UI64_RESULT(result, ns.obytes);
else if (0 == strcmp(mode, "packets"))
SET_UI64_RESULT(result, ns.opackets);
else if (0 == strcmp(mode, "errors"))
SET_UI64_RESULT(result, ns.oerr);
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
return SYSINFO_RET_OK;
}
int net_if_total(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *if_name, *mode, *error;
net_stat_t ns;
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
if_name = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (SYSINFO_RET_FAIL == get_net_stat(if_name, &ns, &error))
{
SET_MSG_RESULT(result, error);
return SYSINFO_RET_FAIL;
}
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "bytes"))
SET_UI64_RESULT(result, ns.ibytes + ns.obytes);
else if (0 == strcmp(mode, "packets"))
SET_UI64_RESULT(result, ns.ipackets + ns.opackets);
else if (0 == strcmp(mode, "errors"))
SET_UI64_RESULT(result, ns.ierr + ns.oerr);
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
return SYSINFO_RET_OK;
}
int net_if_collisions(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *if_name, *error;
net_stat_t ns;
if (1 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
if_name = get_rparam(request, 0);
if (SYSINFO_RET_FAIL == get_net_stat(if_name, &ns, &error))
{
SET_MSG_RESULT(result, error);
return SYSINFO_RET_FAIL;
}
SET_UI64_RESULT(result, ns.colls);
return SYSINFO_RET_OK;
}
int net_if_discovery(AGENT_REQUEST *request, AGENT_RESULT *result)
{
#if defined(HAVE_LIBPERFSTAT)
int rc, i, ret = SYSINFO_RET_FAIL;
perfstat_id_t ps_id;
perfstat_netinterface_t *ps_netif = NULL;
struct zbx_json j;
ZBX_UNUSED(request);
/* check how many perfstat_netinterface_t structures are available */
if (-1 == (rc = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
zbx_json_initarray(&j, ZBX_JSON_STAT_BUF_LEN);
if (0 == rc) /* no network interfaces found */
{
ret = SYSINFO_RET_OK;
goto end;
}
ps_netif = zbx_malloc(ps_netif, rc * sizeof(perfstat_netinterface_t));
/* set name to first interface */
zbx_strscpy(ps_id.name, FIRST_NETINTERFACE); /* pseudo-name for the first network interface */
/* ask to get all the structures available in one call */
/* return code is number of structures returned */
if (-1 != (rc = perfstat_netinterface(&ps_id, ps_netif, sizeof(perfstat_netinterface_t), rc)))
ret = SYSINFO_RET_OK;
/* collecting of the information for each of the interfaces */
for (i = 0; i < rc; i++)
{
zbx_json_addobject(&j, NULL);
zbx_json_addstring(&j, "{#IFNAME}", ps_netif[i].name, ZBX_JSON_TYPE_STRING);
zbx_json_close(&j);
}
zbx_free(ps_netif);
end:
zbx_json_close(&j);
SET_STR_RESULT(result, strdup(j.buffer));
zbx_json_free(&j);
return ret;
#else
ZBX_UNUSED(request);
SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));
return SYSINFO_RET_FAIL;
#endif
}
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