3 * Copyright (C) 2005-2007 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_reserved = false;
65 static _Bool report_inodes = false;
67 static int df_init (void)
69 if (il_device == NULL)
70 il_device = ignorelist_create (1);
71 if (il_mountpoint == NULL)
72 il_mountpoint = ignorelist_create (1);
73 if (il_fstype == NULL)
74 il_fstype = ignorelist_create (1);
79 static int df_config (const char *key, const char *value)
83 if (strcasecmp (key, "Device") == 0)
85 if (ignorelist_add (il_device, value))
89 else if (strcasecmp (key, "MountPoint") == 0)
91 if (ignorelist_add (il_mountpoint, value))
95 else if (strcasecmp (key, "FSType") == 0)
97 if (ignorelist_add (il_fstype, value))
101 else if (strcasecmp (key, "IgnoreSelected") == 0)
105 ignorelist_set_invert (il_device, 0);
106 ignorelist_set_invert (il_mountpoint, 0);
107 ignorelist_set_invert (il_fstype, 0);
111 ignorelist_set_invert (il_device, 1);
112 ignorelist_set_invert (il_mountpoint, 1);
113 ignorelist_set_invert (il_fstype, 1);
117 else if (strcasecmp (key, "ReportByDevice") == 0)
124 else if (strcasecmp (key, "ReportReserved") == 0)
127 report_reserved = true;
129 report_reserved = false;
133 else if (strcasecmp (key, "ReportInodes") == 0)
136 report_inodes = true;
138 report_inodes = false;
147 static void df_submit_two (char *df_name,
153 value_list_t vl = VALUE_LIST_INIT;
155 values[0].gauge = df_used;
156 values[1].gauge = df_free;
160 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
161 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
162 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
163 sstrncpy (vl.type, type, sizeof (vl.type));
164 sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
166 plugin_dispatch_values (&vl);
167 } /* void df_submit_two */
169 __attribute__ ((nonnull(2)))
170 static void df_submit_one (char *plugin_instance,
171 const char *type, const char *type_instance,
175 value_list_t vl = VALUE_LIST_INIT;
177 values[0].gauge = value;
181 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
182 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
183 if (plugin_instance != NULL)
184 sstrncpy (vl.plugin_instance, plugin_instance,
185 sizeof (vl.plugin_instance));
186 sstrncpy (vl.type, type, sizeof (vl.type));
187 if (type_instance != NULL)
188 sstrncpy (vl.type_instance, type_instance,
189 sizeof (vl.type_instance));
191 plugin_dispatch_values (&vl);
192 } /* void df_submit_one */
194 static int df_read (void)
197 struct statvfs statbuf;
199 struct statfs statbuf;
201 /* struct STATANYFS statbuf; */
202 cu_mount_t *mnt_list;
206 if (cu_mount_getlist (&mnt_list) == NULL)
209 for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
211 unsigned long long blocksize;
214 if (ignorelist_match (il_device,
215 (mnt_ptr->spec_device != NULL)
216 ? mnt_ptr->spec_device
219 if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
221 if (ignorelist_match (il_fstype, mnt_ptr->type))
224 if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
227 ERROR ("statv?fs failed: %s",
228 sstrerror (errno, errbuf,
233 if (!statbuf.f_blocks)
238 /* eg, /dev/hda1 -- strip off the "/dev/" */
239 if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
240 sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
242 sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
244 if (strlen(disk_name) < 1)
246 DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
252 if (strcmp (mnt_ptr->dir, "/") == 0)
254 sstrncpy (disk_name, "root", sizeof (disk_name));
260 sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
261 len = strlen (disk_name);
263 for (i = 0; i < len; i++)
264 if (disk_name[i] == '/')
269 blocksize = BLOCKSIZE(statbuf);
274 uint64_t blk_reserved;
277 /* Sanity-check for the values in the struct */
278 if (statbuf.f_bfree < statbuf.f_bavail)
279 statbuf.f_bfree = statbuf.f_bavail;
280 if (statbuf.f_blocks < statbuf.f_bfree)
281 statbuf.f_blocks = statbuf.f_bfree;
283 blk_free = (uint64_t) statbuf.f_bavail;
284 blk_reserved = (uint64_t) (statbuf.f_bfree - statbuf.f_bavail);
285 blk_used = (uint64_t) (statbuf.f_blocks - statbuf.f_bfree);
287 df_submit_one (disk_name, "df_complex", "free",
288 (gauge_t) (blk_free * blocksize));
289 df_submit_one (disk_name, "df_complex", "reserved",
290 (gauge_t) (blk_reserved * blocksize));
291 df_submit_one (disk_name, "df_complex", "used",
292 (gauge_t) (blk_used * blocksize));
294 else /* compatibility code */
299 df_free = statbuf.f_bfree * blocksize;
300 df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize;
302 df_submit_two (disk_name, "df", df_used, df_free);
309 uint64_t inode_reserved;
312 /* Sanity-check for the values in the struct */
313 if (statbuf.f_ffree < statbuf.f_favail)
314 statbuf.f_ffree = statbuf.f_favail;
315 if (statbuf.f_files < statbuf.f_ffree)
316 statbuf.f_files = statbuf.f_ffree;
318 inode_free = (uint64_t) statbuf.f_favail;
319 inode_reserved = (uint64_t) (statbuf.f_ffree - statbuf.f_favail);
320 inode_used = (uint64_t) (statbuf.f_files - statbuf.f_ffree);
322 df_submit_one (disk_name, "df_inodes", "free",
323 (gauge_t) inode_free);
324 df_submit_one (disk_name, "df_inodes", "reserved",
325 (gauge_t) inode_reserved);
326 df_submit_one (disk_name, "df_inodes", "used",
327 (gauge_t) inode_used);
331 cu_mount_freelist (mnt_list);
336 void module_register (void)
338 plugin_register_config ("df", df_config,
339 config_keys, config_keys_num);
340 plugin_register_init ("df", df_init);
341 plugin_register_read ("df", df_read);
342 } /* void module_register */