3 * Copyright (C) 2005-2009 Florian octo Forster
4 * Copyright (C) 2009 Paul Sadauskas
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Florian octo Forster <octo at verplant.org>
21 * Paul Sadauskas <psadauskas at gmail.com>
27 #include "configfile.h"
28 #include "utils_mount.h"
29 #include "utils_ignorelist.h"
32 # if HAVE_SYS_STATVFS_H
33 # include <sys/statvfs.h>
35 # define STATANYFS statvfs
36 # define BLOCKSIZE(s) ((s).f_frsize ? (s).f_frsize : (s).f_bsize)
38 # if HAVE_SYS_STATFS_H
39 # include <sys/statfs.h>
41 # define STATANYFS statfs
42 # define BLOCKSIZE(s) (s).f_bsize
44 # error "No applicable input method."
47 static const char *config_keys[] =
57 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
59 static ignorelist_t *il_device = NULL;
60 static ignorelist_t *il_mountpoint = NULL;
61 static ignorelist_t *il_fstype = NULL;
63 static _Bool by_device = false;
64 static _Bool report_inodes = false;
66 static int df_init (void)
68 if (il_device == NULL)
69 il_device = ignorelist_create (1);
70 if (il_mountpoint == NULL)
71 il_mountpoint = ignorelist_create (1);
72 if (il_fstype == NULL)
73 il_fstype = ignorelist_create (1);
78 static int df_config (const char *key, const char *value)
82 if (strcasecmp (key, "Device") == 0)
84 if (ignorelist_add (il_device, value))
88 else if (strcasecmp (key, "MountPoint") == 0)
90 if (ignorelist_add (il_mountpoint, value))
94 else if (strcasecmp (key, "FSType") == 0)
96 if (ignorelist_add (il_fstype, value))
100 else if (strcasecmp (key, "IgnoreSelected") == 0)
104 ignorelist_set_invert (il_device, 0);
105 ignorelist_set_invert (il_mountpoint, 0);
106 ignorelist_set_invert (il_fstype, 0);
110 ignorelist_set_invert (il_device, 1);
111 ignorelist_set_invert (il_mountpoint, 1);
112 ignorelist_set_invert (il_fstype, 1);
116 else if (strcasecmp (key, "ReportByDevice") == 0)
123 else if (strcasecmp (key, "ReportInodes") == 0)
126 report_inodes = true;
128 report_inodes = false;
137 __attribute__ ((nonnull(2)))
138 static void df_submit_one (char *plugin_instance,
139 const char *type, const char *type_instance,
143 value_list_t vl = VALUE_LIST_INIT;
145 values[0].gauge = value;
149 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
150 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
151 if (plugin_instance != NULL)
152 sstrncpy (vl.plugin_instance, plugin_instance,
153 sizeof (vl.plugin_instance));
154 sstrncpy (vl.type, type, sizeof (vl.type));
155 if (type_instance != NULL)
156 sstrncpy (vl.type_instance, type_instance,
157 sizeof (vl.type_instance));
159 plugin_dispatch_values (&vl);
160 } /* void df_submit_one */
162 static int df_read (void)
165 struct statvfs statbuf;
167 struct statfs statbuf;
169 /* struct STATANYFS statbuf; */
170 cu_mount_t *mnt_list;
174 if (cu_mount_getlist (&mnt_list) == NULL)
177 for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
179 unsigned long long blocksize;
182 uint64_t blk_reserved;
185 if (ignorelist_match (il_device,
186 (mnt_ptr->spec_device != NULL)
187 ? mnt_ptr->spec_device
190 if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
192 if (ignorelist_match (il_fstype, mnt_ptr->type))
195 if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
198 ERROR ("statv?fs failed: %s",
199 sstrerror (errno, errbuf,
204 if (!statbuf.f_blocks)
209 /* eg, /dev/hda1 -- strip off the "/dev/" */
210 if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
211 sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
213 sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
215 if (strlen(disk_name) < 1)
217 DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
223 if (strcmp (mnt_ptr->dir, "/") == 0)
225 sstrncpy (disk_name, "root", sizeof (disk_name));
231 sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
232 len = strlen (disk_name);
234 for (i = 0; i < len; i++)
235 if (disk_name[i] == '/')
240 blocksize = BLOCKSIZE(statbuf);
242 /* Sanity-check for the values in the struct */
243 if (statbuf.f_bfree < statbuf.f_bavail)
244 statbuf.f_bfree = statbuf.f_bavail;
245 if (statbuf.f_blocks < statbuf.f_bfree)
246 statbuf.f_blocks = statbuf.f_bfree;
248 blk_free = (uint64_t) statbuf.f_bavail;
249 blk_reserved = (uint64_t) (statbuf.f_bfree - statbuf.f_bavail);
250 blk_used = (uint64_t) (statbuf.f_blocks - statbuf.f_bfree);
252 df_submit_one (disk_name, "df_complex", "free",
253 (gauge_t) (blk_free * blocksize));
254 df_submit_one (disk_name, "df_complex", "reserved",
255 (gauge_t) (blk_reserved * blocksize));
256 df_submit_one (disk_name, "df_complex", "used",
257 (gauge_t) (blk_used * blocksize));
263 uint64_t inode_reserved;
266 /* Sanity-check for the values in the struct */
267 if (statbuf.f_ffree < statbuf.f_favail)
268 statbuf.f_ffree = statbuf.f_favail;
269 if (statbuf.f_files < statbuf.f_ffree)
270 statbuf.f_files = statbuf.f_ffree;
272 inode_free = (uint64_t) statbuf.f_favail;
273 inode_reserved = (uint64_t) (statbuf.f_ffree - statbuf.f_favail);
274 inode_used = (uint64_t) (statbuf.f_files - statbuf.f_ffree);
276 df_submit_one (disk_name, "df_inodes", "free",
277 (gauge_t) inode_free);
278 df_submit_one (disk_name, "df_inodes", "reserved",
279 (gauge_t) inode_reserved);
280 df_submit_one (disk_name, "df_inodes", "used",
281 (gauge_t) inode_used);
285 cu_mount_freelist (mnt_list);
290 void module_register (void)
292 plugin_register_config ("df", df_config,
293 config_keys, config_keys_num);
294 plugin_register_init ("df", df_init);
295 plugin_register_read ("df", df_read);
296 } /* void module_register */