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[] =
56 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
58 static ignorelist_t *il_device = NULL;
59 static ignorelist_t *il_mountpoint = NULL;
60 static ignorelist_t *il_fstype = NULL;
62 static _Bool by_device = false;
63 static _Bool report_reserved = false;
65 static int df_init (void)
67 if (il_device == NULL)
68 il_device = ignorelist_create (1);
69 if (il_mountpoint == NULL)
70 il_mountpoint = ignorelist_create (1);
71 if (il_fstype == NULL)
72 il_fstype = ignorelist_create (1);
77 static int df_config (const char *key, const char *value)
81 if (strcasecmp (key, "Device") == 0)
83 if (ignorelist_add (il_device, value))
87 else if (strcasecmp (key, "MountPoint") == 0)
89 if (ignorelist_add (il_mountpoint, value))
93 else if (strcasecmp (key, "FSType") == 0)
95 if (ignorelist_add (il_fstype, value))
99 else if (strcasecmp (key, "IgnoreSelected") == 0)
103 ignorelist_set_invert (il_device, 0);
104 ignorelist_set_invert (il_mountpoint, 0);
105 ignorelist_set_invert (il_fstype, 0);
109 ignorelist_set_invert (il_device, 1);
110 ignorelist_set_invert (il_mountpoint, 1);
111 ignorelist_set_invert (il_fstype, 1);
115 else if (strcasecmp (key, "ReportByDevice") == 0)
122 else if (strcasecmp (key, "ReportReserved") == 0)
125 report_reserved = true;
127 report_reserved = false;
136 static void df_submit_two (char *df_name,
142 value_list_t vl = VALUE_LIST_INIT;
144 values[0].gauge = df_used;
145 values[1].gauge = df_free;
149 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
150 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
151 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
152 sstrncpy (vl.type, type, sizeof (vl.type));
153 sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
155 plugin_dispatch_values (&vl);
156 } /* void df_submit_two */
158 __attribute__ ((nonnull(2)))
159 static void df_submit_one (char *plugin_instance,
160 const char *type, const char *type_instance,
164 value_list_t vl = VALUE_LIST_INIT;
166 values[0].gauge = value;
170 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
171 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
172 if (plugin_instance != NULL)
173 sstrncpy (vl.plugin_instance, plugin_instance,
174 sizeof (vl.plugin_instance));
175 sstrncpy (vl.type, type, sizeof (vl.type));
176 if (type_instance != NULL)
177 sstrncpy (vl.type_instance, type_instance,
178 sizeof (vl.type_instance));
180 plugin_dispatch_values (&vl);
181 } /* void df_submit_one */
183 static int df_read (void)
186 struct statvfs statbuf;
188 struct statfs statbuf;
190 /* struct STATANYFS statbuf; */
191 cu_mount_t *mnt_list;
195 if (cu_mount_getlist (&mnt_list) == NULL)
198 for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
200 unsigned long long blocksize;
203 if (ignorelist_match (il_device,
204 (mnt_ptr->spec_device != NULL)
205 ? mnt_ptr->spec_device
208 if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
210 if (ignorelist_match (il_fstype, mnt_ptr->type))
213 if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
216 ERROR ("statv?fs failed: %s",
217 sstrerror (errno, errbuf,
222 if (!statbuf.f_blocks)
227 /* eg, /dev/hda1 -- strip off the "/dev/" */
228 if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
229 sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
231 sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
233 if (strlen(disk_name) < 1)
235 DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
241 if (strcmp (mnt_ptr->dir, "/") == 0)
243 sstrncpy (disk_name, "root", sizeof (disk_name));
249 sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
250 len = strlen (disk_name);
252 for (i = 0; i < len; i++)
253 if (disk_name[i] == '/')
258 blocksize = BLOCKSIZE(statbuf);
263 uint64_t blk_reserved;
266 /* Sanity-check for the values in the struct */
267 if (statbuf.f_bfree < statbuf.f_bavail)
268 statbuf.f_bfree = statbuf.f_bavail;
269 if (statbuf.f_blocks < statbuf.f_bfree)
270 statbuf.f_blocks = statbuf.f_bfree;
272 blk_free = (uint64_t) statbuf.f_bavail;
273 blk_reserved = (uint64_t) (statbuf.f_bfree - statbuf.f_bavail);
274 blk_used = (uint64_t) (statbuf.f_blocks - statbuf.f_bfree);
276 df_submit_one (disk_name, "df_complex", "free",
277 (gauge_t) (blk_free * blocksize));
278 df_submit_one (disk_name, "df_complex", "reserved",
279 (gauge_t) (blk_reserved * blocksize));
280 df_submit_one (disk_name, "df_complex", "used",
281 (gauge_t) (blk_used * blocksize));
283 else /* compatibility code */
288 df_free = statbuf.f_bfree * blocksize;
289 df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize;
291 df_submit_two (disk_name, "df", df_used, df_free);
297 uint64_t inode_reserved;
300 /* Sanity-check for the values in the struct */
301 if (statbuf.f_ffree < statbuf.f_favail)
302 statbuf.f_ffree = statbuf.f_favail;
303 if (statbuf.f_files < statbuf.f_ffree)
304 statbuf.f_files = statbuf.f_ffree;
306 inode_free = (uint64_t) statbuf.f_favail;
307 inode_reserved = (uint64_t) (statbuf.f_ffree - statbuf.f_favail);
308 inode_used = (uint64_t) (statbuf.f_files - statbuf.f_ffree);
310 df_submit_one (disk_name, "df_inodes", "free",
311 (gauge_t) inode_free);
312 df_submit_one (disk_name, "df_inodes", "reserved",
313 (gauge_t) inode_reserved);
314 df_submit_one (disk_name, "df_inodes", "used",
315 (gauge_t) inode_used);
319 cu_mount_freelist (mnt_list);
324 void module_register (void)
326 plugin_register_config ("df", df_config,
327 config_keys, config_keys_num);
328 plugin_register_init ("df", df_init);
329 plugin_register_read ("df", df_read);
330 } /* void module_register */