3 * Copyright (C) 2005-2007 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at verplant.org>
25 #include "configfile.h"
26 #include "utils_mount.h"
27 #include "utils_ignorelist.h"
30 # if HAVE_SYS_STATVFS_H
31 # include <sys/statvfs.h>
33 # define STATANYFS statvfs
34 # define BLOCKSIZE(s) ((s).f_frsize ? (s).f_frsize : (s).f_bsize)
36 # if HAVE_SYS_STATFS_H
37 # include <sys/statfs.h>
39 # define STATANYFS statfs
40 # define BLOCKSIZE(s) (s).f_bsize
42 # error "No applicable input method."
45 static const char *config_keys[] =
53 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
55 static ignorelist_t *il_device = NULL;
56 static ignorelist_t *il_mountpoint = NULL;
57 static ignorelist_t *il_fstype = NULL;
59 static _Bool by_device = false;
61 static int df_init (void)
63 if (il_device == NULL)
64 il_device = ignorelist_create (1);
65 if (il_mountpoint == NULL)
66 il_mountpoint = ignorelist_create (1);
67 if (il_fstype == NULL)
68 il_fstype = ignorelist_create (1);
73 static int df_config (const char *key, const char *value)
77 if (strcasecmp (key, "Device") == 0)
79 if (ignorelist_add (il_device, value))
83 else if (strcasecmp (key, "MountPoint") == 0)
85 if (ignorelist_add (il_mountpoint, value))
89 else if (strcasecmp (key, "FSType") == 0)
91 if (ignorelist_add (il_fstype, value))
95 else if (strcasecmp (key, "IgnoreSelected") == 0)
99 ignorelist_set_invert (il_device, 0);
100 ignorelist_set_invert (il_mountpoint, 0);
101 ignorelist_set_invert (il_fstype, 0);
105 ignorelist_set_invert (il_device, 1);
106 ignorelist_set_invert (il_mountpoint, 1);
107 ignorelist_set_invert (il_fstype, 1);
111 else if (strcasecmp (key, "ReportByDevice") == 0)
122 static void df_submit (char *df_name,
127 value_list_t vl = VALUE_LIST_INIT;
129 values[0].gauge = df_used;
130 values[1].gauge = df_free;
134 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
135 sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
136 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
137 sstrncpy (vl.type, "df", sizeof (vl.host));
138 sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
140 plugin_dispatch_values (&vl);
141 } /* void df_submit */
143 static int df_read (void)
146 struct statvfs statbuf;
148 struct statfs statbuf;
150 /* struct STATANYFS statbuf; */
151 cu_mount_t *mnt_list;
154 unsigned long long blocksize;
160 if (cu_mount_getlist (&mnt_list) == NULL)
163 for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
165 if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
168 ERROR ("statv?fs failed: %s",
169 sstrerror (errno, errbuf,
174 if (!statbuf.f_blocks)
177 blocksize = BLOCKSIZE(statbuf);
178 df_free = statbuf.f_bfree * blocksize;
179 df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize;
183 /* eg, /dev/hda1 -- strip off the "/dev/" */
184 if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
185 sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
187 sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
189 if (strlen(disk_name) < 1)
191 DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
197 if (strcmp (mnt_ptr->dir, "/") == 0)
199 sstrncpy (disk_name, "root", sizeof (disk_name));
205 sstrncpy (disk_name, mnt_ptr->dir + 1, sizeof (disk_name));
206 len = strlen (disk_name);
208 for (i = 0; i < len; i++)
209 if (disk_name[i] == '/')
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 df_submit (disk_name, df_used, df_free);
227 cu_mount_freelist (mnt_list);
232 void module_register (void)
234 plugin_register_config ("df", df_config,
235 config_keys, config_keys_num);
236 plugin_register_init ("df", df_init);
237 plugin_register_read ("df", df_read);
238 } /* void module_register */