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diff --git a/src/df.c b/src/df.c
--- /dev/null
+++ b/src/df.c
@@ -0,0 +1,375 @@
+/**
+ * collectd - src/df.c
+ * Copyright (C) 2005-2009 Florian octo Forster
+ * Copyright (C) 2009 Paul Sadauskas
+ *
+ * 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; only version 2 of the License is applicable.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Florian octo Forster <octo at collectd.org>
+ * Paul Sadauskas <psadauskas at gmail.com>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "configfile.h"
+#include "utils_mount.h"
+#include "utils_ignorelist.h"
+
+#if HAVE_STATVFS
+# if HAVE_SYS_STATVFS_H
+# include <sys/statvfs.h>
+# endif
+# define STATANYFS statvfs
+# define STATANYFS_STR "statvfs"
+# define BLOCKSIZE(s) ((s).f_frsize ? (s).f_frsize : (s).f_bsize)
+#elif HAVE_STATFS
+# if HAVE_SYS_STATFS_H
+# include <sys/statfs.h>
+# endif
+# define STATANYFS statfs
+# define STATANYFS_STR "statfs"
+# define BLOCKSIZE(s) (s).f_bsize
+#else
+# error "No applicable input method."
+#endif
+
+static const char *config_keys[] =
+{
+ "Device",
+ "MountPoint",
+ "FSType",
+ "IgnoreSelected",
+ "ReportByDevice",
+ "ReportReserved",
+ "ReportInodes",
+ "ValuesAbsolute",
+ "ValuesPercentage"
+};
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+
+static ignorelist_t *il_device = NULL;
+static ignorelist_t *il_mountpoint = NULL;
+static ignorelist_t *il_fstype = NULL;
+
+static _Bool by_device = 0;
+static _Bool report_inodes = 0;
+static _Bool values_absolute = 1;
+static _Bool values_percentage = 0;
+
+static int df_init (void)
+{
+ if (il_device == NULL)
+ il_device = ignorelist_create (1);
+ if (il_mountpoint == NULL)
+ il_mountpoint = ignorelist_create (1);
+ if (il_fstype == NULL)
+ il_fstype = ignorelist_create (1);
+
+ return (0);
+}
+
+static int df_config (const char *key, const char *value)
+{
+ df_init ();
+
+ if (strcasecmp (key, "Device") == 0)
+ {
+ if (ignorelist_add (il_device, value))
+ return (1);
+ return (0);
+ }
+ else if (strcasecmp (key, "MountPoint") == 0)
+ {
+ if (ignorelist_add (il_mountpoint, value))
+ return (1);
+ return (0);
+ }
+ else if (strcasecmp (key, "FSType") == 0)
+ {
+ if (ignorelist_add (il_fstype, value))
+ return (1);
+ return (0);
+ }
+ else if (strcasecmp (key, "IgnoreSelected") == 0)
+ {
+ if (IS_TRUE (value))
+ {
+ ignorelist_set_invert (il_device, 0);
+ ignorelist_set_invert (il_mountpoint, 0);
+ ignorelist_set_invert (il_fstype, 0);
+ }
+ else
+ {
+ ignorelist_set_invert (il_device, 1);
+ ignorelist_set_invert (il_mountpoint, 1);
+ ignorelist_set_invert (il_fstype, 1);
+ }
+ return (0);
+ }
+ else if (strcasecmp (key, "ReportByDevice") == 0)
+ {
+ if (IS_TRUE (value))
+ by_device = 1;
+
+ return (0);
+ }
+ else if (strcasecmp (key, "ReportInodes") == 0)
+ {
+ if (IS_TRUE (value))
+ report_inodes = 1;
+ else
+ report_inodes = 0;
+
+ return (0);
+ }
+ else if (strcasecmp (key, "ValuesAbsolute") == 0)
+ {
+ if (IS_TRUE (value))
+ values_absolute = 1;
+ else
+ values_absolute = 0;
+
+ return (0);
+ }
+ else if (strcasecmp (key, "ValuesPercentage") == 0)
+ {
+ if (IS_TRUE (value))
+ values_percentage = 1;
+ else
+ values_percentage = 0;
+
+ return (0);
+ }
+
+ return (-1);
+}
+
+__attribute__ ((nonnull(2)))
+static void df_submit_one (char *plugin_instance,
+ const char *type, const char *type_instance,
+ gauge_t value)
+{
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
+
+ values[0].gauge = value;
+
+ vl.values = values;
+ vl.values_len = 1;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
+ if (plugin_instance != NULL)
+ sstrncpy (vl.plugin_instance, plugin_instance,
+ sizeof (vl.plugin_instance));
+ sstrncpy (vl.type, type, sizeof (vl.type));
+ if (type_instance != NULL)
+ sstrncpy (vl.type_instance, type_instance,
+ sizeof (vl.type_instance));
+
+ plugin_dispatch_values (&vl);
+} /* void df_submit_one */
+
+static int df_read (void)
+{
+#if HAVE_STATVFS
+ struct statvfs statbuf;
+#elif HAVE_STATFS
+ struct statfs statbuf;
+#endif
+ /* struct STATANYFS statbuf; */
+ cu_mount_t *mnt_list;
+ cu_mount_t *mnt_ptr;
+
+ mnt_list = NULL;
+ if (cu_mount_getlist (&mnt_list) == NULL)
+ {
+ ERROR ("df plugin: cu_mount_getlist failed.");
+ return (-1);
+ }
+
+ for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
+ {
+ unsigned long long blocksize;
+ char disk_name[256];
+ uint64_t blk_free;
+ uint64_t blk_reserved;
+ uint64_t blk_used;
+
+ if (ignorelist_match (il_device,
+ (mnt_ptr->spec_device != NULL)
+ ? mnt_ptr->spec_device
+ : mnt_ptr->device))
+ continue;
+ if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
+ continue;
+ if (ignorelist_match (il_fstype, mnt_ptr->type))
+ continue;
+
+ if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
+ {
+ char errbuf[1024];
+ ERROR (STATANYFS_STR"(%s) failed: %s",
+ mnt_ptr->dir,
+ sstrerror (errno, errbuf,
+ sizeof (errbuf)));
+ continue;
+ }
+
+ if (!statbuf.f_blocks)
+ continue;
+
+ if (by_device)
+ {
+ /* eg, /dev/hda1 -- strip off the "/dev/" */
+ if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
+ sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
+ else
+ sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
+
+ if (strlen(disk_name) < 1)
+ {
+ DEBUG("df: no device name for mountpoint %s, skipping", mnt_ptr->dir);
+ continue;
+ }
+ }
+ else
+ {
+ if (strcmp (mnt_ptr->dir, "/") == 0)
+ {
+ if (strcmp (mnt_ptr->type, "rootfs") == 0)
+ continue;
+ sstrncpy (disk_name, "root", sizeof (disk_name));
+ }
+ else
+ {
+ int i, len;
+
+ sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
+ len = strlen (disk_name);
+
+ for (i = 0; i < len; i++)
+ if (disk_name[i] == '/')
+ disk_name[i] = '-';
+ }
+ }
+
+ blocksize = BLOCKSIZE(statbuf);
+
+ /*
+ * Sanity-check for the values in the struct
+ */
+ /* Check for negative "available" byes. For example UFS can
+ * report negative free space for user. Notice. blk_reserved
+ * will start to diminish after this. */
+#if HAVE_STATVFS
+ /* Cast and temporary variable are needed to avoid
+ * compiler warnings.
+ * ((struct statvfs).f_bavail is unsigned (POSIX)) */
+ int64_t signed_bavail = (int64_t) statbuf.f_bavail;
+ if (signed_bavail < 0)
+ statbuf.f_bavail = 0;
+#elif HAVE_STATFS
+ if (statbuf.f_bavail < 0)
+ statbuf.f_bavail = 0;
+#endif
+ /* Make sure that f_blocks >= f_bfree >= f_bavail */
+ if (statbuf.f_bfree < statbuf.f_bavail)
+ statbuf.f_bfree = statbuf.f_bavail;
+ if (statbuf.f_blocks < statbuf.f_bfree)
+ statbuf.f_blocks = statbuf.f_bfree;
+
+ blk_free = (uint64_t) statbuf.f_bavail;
+ blk_reserved = (uint64_t) (statbuf.f_bfree - statbuf.f_bavail);
+ blk_used = (uint64_t) (statbuf.f_blocks - statbuf.f_bfree);
+
+ if (values_absolute)
+ {
+ df_submit_one (disk_name, "df_complex", "free",
+ (gauge_t) (blk_free * blocksize));
+ df_submit_one (disk_name, "df_complex", "reserved",
+ (gauge_t) (blk_reserved * blocksize));
+ df_submit_one (disk_name, "df_complex", "used",
+ (gauge_t) (blk_used * blocksize));
+ }
+
+ if (values_percentage)
+ {
+ if (statbuf.f_blocks > 0)
+ {
+ df_submit_one (disk_name, "percent_bytes", "free",
+ (gauge_t) ((float_t)(blk_free) / statbuf.f_blocks * 100));
+ df_submit_one (disk_name, "percent_bytes", "reserved",
+ (gauge_t) ((float_t)(blk_reserved) / statbuf.f_blocks * 100));
+ df_submit_one (disk_name, "percent_bytes", "used",
+ (gauge_t) ((float_t)(blk_used) / statbuf.f_blocks * 100));
+ }
+ else return (-1);
+ }
+
+ /* inode handling */
+ if (report_inodes)
+ {
+ uint64_t inode_free;
+ uint64_t inode_reserved;
+ uint64_t inode_used;
+
+ /* Sanity-check for the values in the struct */
+ if (statbuf.f_ffree < statbuf.f_favail)
+ statbuf.f_ffree = statbuf.f_favail;
+ if (statbuf.f_files < statbuf.f_ffree)
+ statbuf.f_files = statbuf.f_ffree;
+
+ inode_free = (uint64_t) statbuf.f_favail;
+ inode_reserved = (uint64_t) (statbuf.f_ffree - statbuf.f_favail);
+ inode_used = (uint64_t) (statbuf.f_files - statbuf.f_ffree);
+
+ if (values_percentage)
+ {
+ if (statbuf.f_files > 0)
+ {
+ df_submit_one (disk_name, "percent_inodes", "free",
+ (gauge_t) ((float_t)(inode_free) / statbuf.f_files * 100));
+ df_submit_one (disk_name, "percent_inodes", "reserved",
+ (gauge_t) ((float_t)(inode_reserved) / statbuf.f_files * 100));
+ df_submit_one (disk_name, "percent_inodes", "used",
+ (gauge_t) ((float_t)(inode_used) / statbuf.f_files * 100));
+ }
+ else return (-1);
+ }
+ if (values_absolute)
+ {
+ df_submit_one (disk_name, "df_inodes", "free",
+ (gauge_t) inode_free);
+ df_submit_one (disk_name, "df_inodes", "reserved",
+ (gauge_t) inode_reserved);
+ df_submit_one (disk_name, "df_inodes", "used",
+ (gauge_t) inode_used);
+ }
+ }
+ }
+
+ cu_mount_freelist (mnt_list);
+
+ return (0);
+} /* int df_read */
+
+void module_register (void)
+{
+ plugin_register_config ("df", df_config,
+ config_keys, config_keys_num);
+ plugin_register_init ("df", df_init);
+ plugin_register_read ("df", df_read);
+} /* void module_register */