1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
// SPDX-License-Identifier: GPL-3.0-or-later
#include "plugin_freebsd.h"
#include <sys/mount.h>
struct mount_point {
char *name;
uint32_t hash;
size_t len;
// flags
int configured;
int enabled;
int updated;
int do_space;
int do_inodes;
size_t collected; // the number of times this has been collected
// charts and dimensions
RRDSET *st_space;
RRDDIM *rd_space_used;
RRDDIM *rd_space_avail;
RRDDIM *rd_space_reserved;
RRDSET *st_inodes;
RRDDIM *rd_inodes_used;
RRDDIM *rd_inodes_avail;
struct mount_point *next;
};
static struct mount_point *mount_points_root = NULL, *mount_points_last_used = NULL;
static size_t mount_points_added = 0, mount_points_found = 0;
static void mount_point_free(struct mount_point *m) {
if (likely(m->st_space))
rrdset_is_obsolete(m->st_space);
if (likely(m->st_inodes))
rrdset_is_obsolete(m->st_inodes);
mount_points_added--;
freez(m->name);
freez(m);
}
static void mount_points_cleanup() {
if (likely(mount_points_found == mount_points_added)) return;
struct mount_point *m = mount_points_root, *last = NULL;
while(m) {
if (unlikely(!m->updated)) {
// info("Removing mount point '%s', linked after '%s'", m->name, last?last->name:"ROOT");
if (mount_points_last_used == m)
mount_points_last_used = last;
struct mount_point *t = m;
if (m == mount_points_root || !last)
mount_points_root = m = m->next;
else
last->next = m = m->next;
t->next = NULL;
mount_point_free(t);
}
else {
last = m;
m->updated = 0;
m = m->next;
}
}
}
static struct mount_point *get_mount_point(const char *name) {
struct mount_point *m;
uint32_t hash = simple_hash(name);
// search it, from the last position to the end
for(m = mount_points_last_used ; m ; m = m->next) {
if (unlikely(hash == m->hash && !strcmp(name, m->name))) {
mount_points_last_used = m->next;
return m;
}
}
// search it from the beginning to the last position we used
for(m = mount_points_root ; m != mount_points_last_used ; m = m->next) {
if (unlikely(hash == m->hash && !strcmp(name, m->name))) {
mount_points_last_used = m->next;
return m;
}
}
// create a new one
m = callocz(1, sizeof(struct mount_point));
m->name = strdupz(name);
m->hash = simple_hash(m->name);
m->len = strlen(m->name);
mount_points_added++;
// link it to the end
if (mount_points_root) {
struct mount_point *e;
for(e = mount_points_root; e->next ; e = e->next) ;
e->next = m;
}
else
mount_points_root = m;
return m;
}
// --------------------------------------------------------------------------------------------------------------------
// getmntinfo
int do_getmntinfo(int update_every, usec_t dt) {
(void)dt;
#define DELAULT_EXCLUDED_PATHS "/proc/*"
// taken from gnulib/mountlist.c and shortened to FreeBSD related fstypes
#define DEFAULT_EXCLUDED_FILESYSTEMS "autofs procfs subfs devfs none"
#define CONFIG_SECTION_GETMNTINFO "plugin:freebsd:getmntinfo"
static int enable_new_mount_points = -1;
static int do_space = -1, do_inodes = -1;
static SIMPLE_PATTERN *excluded_mountpoints = NULL;
static SIMPLE_PATTERN *excluded_filesystems = NULL;
if (unlikely(enable_new_mount_points == -1)) {
enable_new_mount_points = config_get_boolean_ondemand(CONFIG_SECTION_GETMNTINFO,
"enable new mount points detected at runtime",
CONFIG_BOOLEAN_AUTO);
do_space = config_get_boolean_ondemand(CONFIG_SECTION_GETMNTINFO, "space usage for all disks", CONFIG_BOOLEAN_AUTO);
do_inodes = config_get_boolean_ondemand(CONFIG_SECTION_GETMNTINFO, "inodes usage for all disks", CONFIG_BOOLEAN_AUTO);
excluded_mountpoints = simple_pattern_create(
config_get(CONFIG_SECTION_GETMNTINFO, "exclude space metrics on paths",
DELAULT_EXCLUDED_PATHS)
, NULL
, SIMPLE_PATTERN_EXACT
);
excluded_filesystems = simple_pattern_create(
config_get(CONFIG_SECTION_GETMNTINFO, "exclude space metrics on filesystems",
DEFAULT_EXCLUDED_FILESYSTEMS)
, NULL
, SIMPLE_PATTERN_EXACT
);
}
if (likely(do_space || do_inodes)) {
struct statfs *mntbuf;
int mntsize;
// there is no mount info in sysctl MIBs
if (unlikely(!(mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)))) {
error("FREEBSD: getmntinfo() failed");
do_space = 0;
error("DISABLED: disk_space.* charts");
do_inodes = 0;
error("DISABLED: disk_inodes.* charts");
error("DISABLED: getmntinfo module");
return 1;
} else {
int i;
mount_points_found = 0;
for (i = 0; i < mntsize; i++) {
char title[4096 + 1];
struct mount_point *m = get_mount_point(mntbuf[i].f_mntonname);
m->updated = 1;
mount_points_found++;
if (unlikely(!m->configured)) {
char var_name[4096 + 1];
// this is the first time we see this filesystem
// remember we configured it
m->configured = 1;
m->enabled = enable_new_mount_points;
if (likely(m->enabled))
m->enabled = !(simple_pattern_matches(excluded_mountpoints, mntbuf[i].f_mntonname)
|| simple_pattern_matches(excluded_filesystems, mntbuf[i].f_fstypename));
snprintfz(var_name, 4096, "%s:%s", CONFIG_SECTION_GETMNTINFO, mntbuf[i].f_mntonname);
m->enabled = config_get_boolean_ondemand(var_name, "enabled", m->enabled);
if (unlikely(m->enabled == CONFIG_BOOLEAN_NO))
continue;
m->do_space = config_get_boolean_ondemand(var_name, "space usage", do_space);
m->do_inodes = config_get_boolean_ondemand(var_name, "inodes usage", do_inodes);
}
if (unlikely(!m->enabled))
continue;
if (unlikely(mntbuf[i].f_flags & MNT_RDONLY && !m->collected))
continue;
// --------------------------------------------------------------------------
int rendered = 0;
if (m->do_space == CONFIG_BOOLEAN_YES || (m->do_space == CONFIG_BOOLEAN_AUTO && (mntbuf[i].f_blocks > 2))) {
if (unlikely(!m->st_space)) {
snprintfz(title, 4096, "Disk Space Usage for %s [%s]",
mntbuf[i].f_mntonname, mntbuf[i].f_mntfromname);
m->st_space = rrdset_create_localhost("disk_space",
mntbuf[i].f_mntonname,
NULL,
mntbuf[i].f_mntonname,
"disk.space",
title,
"GiB",
"freebsd.plugin",
"getmntinfo",
NETDATA_CHART_PRIO_DISKSPACE_SPACE,
update_every,
RRDSET_TYPE_STACKED
);
m->rd_space_avail = rrddim_add(m->st_space, "avail", NULL,
mntbuf[i].f_bsize, GIGA_FACTOR, RRD_ALGORITHM_ABSOLUTE);
m->rd_space_used = rrddim_add(m->st_space, "used", NULL,
mntbuf[i].f_bsize, GIGA_FACTOR, RRD_ALGORITHM_ABSOLUTE);
m->rd_space_reserved = rrddim_add(m->st_space, "reserved_for_root", "reserved for root",
mntbuf[i].f_bsize, GIGA_FACTOR, RRD_ALGORITHM_ABSOLUTE);
} else
rrdset_next(m->st_space);
rrddim_set_by_pointer(m->st_space, m->rd_space_avail, (collected_number) mntbuf[i].f_bavail);
rrddim_set_by_pointer(m->st_space, m->rd_space_used, (collected_number) (mntbuf[i].f_blocks -
mntbuf[i].f_bfree));
rrddim_set_by_pointer(m->st_space, m->rd_space_reserved, (collected_number) (mntbuf[i].f_bfree -
mntbuf[i].f_bavail));
rrdset_done(m->st_space);
rendered++;
}
// --------------------------------------------------------------------------
if (m->do_inodes == CONFIG_BOOLEAN_YES || (m->do_inodes == CONFIG_BOOLEAN_AUTO && (mntbuf[i].f_files > 1))) {
if (unlikely(!m->st_inodes)) {
snprintfz(title, 4096, "Disk Files (inodes) Usage for %s [%s]",
mntbuf[i].f_mntonname, mntbuf[i].f_mntfromname);
m->st_inodes = rrdset_create_localhost("disk_inodes",
mntbuf[i].f_mntonname,
NULL,
mntbuf[i].f_mntonname,
"disk.inodes",
title,
"inodes",
"freebsd.plugin",
"getmntinfo",
NETDATA_CHART_PRIO_DISKSPACE_INODES,
update_every,
RRDSET_TYPE_STACKED
);
m->rd_inodes_avail = rrddim_add(m->st_inodes, "avail", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
m->rd_inodes_used = rrddim_add(m->st_inodes, "used", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
} else
rrdset_next(m->st_inodes);
rrddim_set_by_pointer(m->st_inodes, m->rd_inodes_avail, (collected_number) mntbuf[i].f_ffree);
rrddim_set_by_pointer(m->st_inodes, m->rd_inodes_used, (collected_number) (mntbuf[i].f_files -
mntbuf[i].f_ffree));
rrdset_done(m->st_inodes);
rendered++;
}
if (likely(rendered))
m->collected++;
}
}
} else {
error("DISABLED: getmntinfo module");
return 1;
}
mount_points_cleanup();
return 0;
}
|
