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[] =
55 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
57 static ignorelist_t *il_device = NULL;
58 static ignorelist_t *il_mountpoint = NULL;
59 static ignorelist_t *il_fstype = NULL;
61 static _Bool by_device = false;
63 static int df_init (void)
65 if (il_device == NULL)
66 il_device = ignorelist_create (1);
67 if (il_mountpoint == NULL)
68 il_mountpoint = ignorelist_create (1);
69 if (il_fstype == NULL)
70 il_fstype = ignorelist_create (1);
75 static int df_config (const char *key, const char *value)
79 if (strcasecmp (key, "Device") == 0)
81 if (ignorelist_add (il_device, value))
85 else if (strcasecmp (key, "MountPoint") == 0)
87 if (ignorelist_add (il_mountpoint, value))
91 else if (strcasecmp (key, "FSType") == 0)
93 if (ignorelist_add (il_fstype, value))
97 else if (strcasecmp (key, "IgnoreSelected") == 0)
101 ignorelist_set_invert (il_device, 0);
102 ignorelist_set_invert (il_mountpoint, 0);
103 ignorelist_set_invert (il_fstype, 0);
107 ignorelist_set_invert (il_device, 1);
108 ignorelist_set_invert (il_mountpoint, 1);
109 ignorelist_set_invert (il_fstype, 1);
113 else if (strcasecmp (key, "ReportByDevice") == 0)
124 static void df_submit (char *df_name,
130 value_list_t vl = VALUE_LIST_INIT;
132 values[0].gauge = df_used;
133 values[1].gauge = df_free;
137 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
138 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
139 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
140 sstrncpy (vl.type, type, sizeof (vl.type));
141 sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
143 plugin_dispatch_values (&vl);
144 } /* void df_submit */
146 static int df_read (void)
149 struct statvfs statbuf;
151 struct statfs statbuf;
153 /* struct STATANYFS statbuf; */
154 cu_mount_t *mnt_list;
157 unsigned long long blocksize;
160 gauge_t df_inodes_free;
161 gauge_t df_inodes_used;
165 if (cu_mount_getlist (&mnt_list) == NULL)
168 for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
170 if (ignorelist_match (il_device,
171 (mnt_ptr->spec_device != NULL)
172 ? mnt_ptr->spec_device
175 if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
177 if (ignorelist_match (il_fstype, mnt_ptr->type))
180 if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
183 ERROR ("statv?fs failed: %s",
184 sstrerror (errno, errbuf,
189 if (!statbuf.f_blocks)
192 blocksize = BLOCKSIZE(statbuf);
193 df_free = statbuf.f_bfree * blocksize;
194 df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize;
196 df_inodes_used = statbuf.f_files - statbuf.f_ffree;
197 df_inodes_free = statbuf.f_ffree;
201 /* eg, /dev/hda1 -- strip off the "/dev/" */
202 if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
203 sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
205 sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
207 if (strlen(disk_name) < 1)
209 DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
215 if (strcmp (mnt_ptr->dir, "/") == 0)
217 sstrncpy (disk_name, "root", sizeof (disk_name));
223 sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
224 len = strlen (disk_name);
226 for (i = 0; i < len; i++)
227 if (disk_name[i] == '/')
232 df_submit (disk_name, "df", df_used, df_free);
233 df_submit (disk_name, "df_inodes", df_inodes_used, df_inodes_free);
236 cu_mount_freelist (mnt_list);
241 void module_register (void)
243 plugin_register_config ("df", df_config,
244 config_keys, config_keys_num);
245 plugin_register_init ("df", df_init);
246 plugin_register_read ("df", df_read);
247 } /* void module_register */