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/*
** Zabbix
** Copyright (C) 2001-2014 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"
static int get_fs_size_stat(const char *fs, zbx_uint64_t *total, zbx_uint64_t *free,
zbx_uint64_t *used, double *pfree, double *pused)
{
#ifdef HAVE_SYS_STATVFS_H
# define ZBX_STATFS statvfs
# define ZBX_BSIZE f_frsize
#else
# define ZBX_STATFS statfs
# define ZBX_BSIZE f_bsize
#endif
struct ZBX_STATFS s;
assert(fs);
if (0 != ZBX_STATFS(fs, &s))
return SYSINFO_RET_FAIL;
if (total)
*total = (zbx_uint64_t)s.f_blocks * s.ZBX_BSIZE;
if (free)
*free = (zbx_uint64_t)s.f_bavail * s.ZBX_BSIZE;
if (used)
*used = (zbx_uint64_t)(s.f_blocks - s.f_bfree) * s.ZBX_BSIZE;
if (pfree)
{
if (0 != s.f_blocks - s.f_bfree + s.f_bavail)
*pfree = (double)(100.0 * s.f_bavail) /
(s.f_blocks - s.f_bfree + s.f_bavail);
else
*pfree = 0;
}
if (pused)
{
if (0 != s.f_blocks - s.f_bfree + s.f_bavail)
*pused = 100.0 - (double)(100.0 * s.f_bavail) /
(s.f_blocks - s.f_bfree + s.f_bavail);
else
*pused = 0;
}
return SYSINFO_RET_OK;
}
static int VFS_FS_USED(const char *fs, AGENT_RESULT *result)
{
zbx_uint64_t value = 0;
if (SYSINFO_RET_OK != get_fs_size_stat(fs, NULL, NULL, &value, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VFS_FS_FREE(const char *fs, AGENT_RESULT *result)
{
zbx_uint64_t value = 0;
if (SYSINFO_RET_OK != get_fs_size_stat(fs, NULL, &value, NULL, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VFS_FS_TOTAL(const char *fs, AGENT_RESULT *result)
{
zbx_uint64_t value = 0;
if (SYSINFO_RET_OK != get_fs_size_stat(fs, &value, NULL, NULL, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VFS_FS_PFREE(const char *fs, AGENT_RESULT *result)
{
double value = 0;
if (SYSINFO_RET_OK != get_fs_size_stat(fs, NULL, NULL, NULL, &value, NULL))
return SYSINFO_RET_FAIL;
SET_DBL_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VFS_FS_PUSED(const char *fs, AGENT_RESULT *result)
{
double value = 0;
if (SYSINFO_RET_OK != get_fs_size_stat(fs, NULL, NULL, NULL, NULL, &value))
return SYSINFO_RET_FAIL;
SET_DBL_RESULT(result, value);
return SYSINFO_RET_OK;
}
int VFS_FS_SIZE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *fsname, *mode;
int ret = SYSINFO_RET_FAIL;
if (2 < request->nparam)
return SYSINFO_RET_FAIL;
fsname = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (NULL == fsname || '\0' == *fsname)
return SYSINFO_RET_FAIL;
/* default parameter */
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "total"))
ret = VFS_FS_TOTAL(fsname, result);
else if (0 == strcmp(mode, "free"))
ret = VFS_FS_FREE(fsname, result);
else if (0 == strcmp(mode, "pfree"))
ret = VFS_FS_PFREE(fsname, result);
else if (0 == strcmp(mode, "used"))
ret = VFS_FS_USED(fsname, result);
else if (0 == strcmp(mode, "pused"))
ret = VFS_FS_PUSED(fsname, result);
else
ret = SYSINFO_RET_FAIL;
return ret;;
}
int VFS_FS_DISCOVERY(AGENT_REQUEST *request, AGENT_RESULT *result)
{
int i, rc, ret = SYSINFO_RET_FAIL;
struct statfs *mntbuf;
struct zbx_json j;
zbx_json_init(&j, ZBX_JSON_STAT_BUF_LEN);
zbx_json_addarray(&j, ZBX_PROTO_TAG_DATA);
if (0 != (rc = getmntinfo(&mntbuf, MNT_WAIT)))
{
for (i = 0; i < rc; i++)
{
zbx_json_addobject(&j, NULL);
zbx_json_addstring(&j, "{#FSNAME}", mntbuf[i].f_mntonname, ZBX_JSON_TYPE_STRING);
zbx_json_addstring(&j, "{#FSTYPE}", mntbuf[i].f_fstypename, ZBX_JSON_TYPE_STRING);
zbx_json_close(&j);
}
ret = SYSINFO_RET_OK;
}
zbx_json_close(&j);
SET_STR_RESULT(result, zbx_strdup(NULL, j.buffer));
zbx_json_free(&j);
return ret;
}
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