Merge branch 'pr/2004'
[collectd.git] / src / openldap.c
1 /**
2  * collectd - src/openldap.c
3  * Copyright (C) 2011       Kimo Rosenbaum
4  * Copyright (C) 2014-2015  Marc Fournier
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *   Kimo Rosenbaum <kimor79 at yahoo.com>
26  *   Marc Fournier <marc.fournier at camptocamp.com>
27  **/
28
29 #include "collectd.h"
30
31 #include "common.h"
32 #include "plugin.h"
33
34 #if defined(__APPLE__)
35 #pragma clang diagnostic push
36 #pragma clang diagnostic warning "-Wdeprecated-declarations"
37 #endif
38
39 #include <lber.h>
40 #include <ldap.h>
41
42 struct cldap_s /* {{{ */
43 {
44         char *name;
45
46         char *binddn;
47         char *password;
48         char *cacert;
49         char *host;
50         int   state;
51         _Bool starttls;
52         int   timeout;
53         char *url;
54         _Bool verifyhost;
55         int   version;
56
57         LDAP *ld;
58 };
59 typedef struct cldap_s cldap_t; /* }}} */
60
61 static cldap_t **databases   = NULL;
62 static size_t  databases_num = 0;
63
64 static void cldap_free (cldap_t *st) /* {{{ */
65 {
66         if (st == NULL)
67                 return;
68
69         sfree (st->binddn);
70         sfree (st->password);
71         sfree (st->cacert);
72         sfree (st->host);
73         sfree (st->name);
74         sfree (st->url);
75         if (st->ld)
76                 ldap_memfree (st->ld);
77         sfree (st);
78 } /* }}} void cldap_free */
79
80 /* initialize ldap for each host */
81 static int cldap_init_host (cldap_t *st) /* {{{ */
82 {
83         LDAP *ld;
84         int rc;
85
86         if (st->state && st->ld)
87         {
88                 DEBUG ("openldap plugin: Already connected to %s", st->url);
89                 return (0);
90         }
91
92         rc = ldap_initialize (&ld, st->url);
93         if (rc != LDAP_SUCCESS)
94         {
95                 ERROR ("openldap plugin: ldap_initialize failed: %s",
96                         ldap_err2string (rc));
97                 st->state = 0;
98                 ldap_unbind_ext_s (ld, NULL, NULL);
99                 return (-1);
100         }
101
102         st->ld = ld;
103
104         ldap_set_option (st->ld, LDAP_OPT_PROTOCOL_VERSION, &st->version);
105
106         ldap_set_option (st->ld, LDAP_OPT_TIMEOUT,
107                 &(const struct timeval){st->timeout, 0});
108
109         ldap_set_option (st->ld, LDAP_OPT_RESTART, LDAP_OPT_ON);
110
111         if (st->cacert != NULL)
112                 ldap_set_option (st->ld, LDAP_OPT_X_TLS_CACERTFILE, st->cacert);
113
114         if (st->verifyhost == 0)
115         {
116                 int never = LDAP_OPT_X_TLS_NEVER;
117                 ldap_set_option (st->ld, LDAP_OPT_X_TLS_REQUIRE_CERT, &never);
118         }
119
120         if (st->starttls != 0)
121         {
122                 rc = ldap_start_tls_s (ld, NULL, NULL);
123                 if (rc != LDAP_SUCCESS)
124                 {
125                         ERROR ("openldap plugin: Failed to start tls on %s: %s",
126                                         st->url, ldap_err2string (rc));
127                         st->state = 0;
128                         ldap_unbind_ext_s (st->ld, NULL, NULL);
129                         return (-1);
130                 }
131         }
132
133         struct berval cred;
134         if (st->password != NULL)
135         {
136                 cred.bv_val = st->password;
137                 cred.bv_len = strlen (st->password);
138         }
139         else
140         {
141                 cred.bv_val = "";
142                 cred.bv_len = 0;
143         }
144
145         rc = ldap_sasl_bind_s (st->ld, st->binddn, LDAP_SASL_SIMPLE, &cred,
146                         NULL, NULL, NULL);
147         if (rc != LDAP_SUCCESS)
148         {
149                 ERROR ("openldap plugin: Failed to bind to %s: %s",
150                                 st->url, ldap_err2string (rc));
151                 st->state = 0;
152                 ldap_unbind_ext_s (st->ld, NULL, NULL);
153                 return (-1);
154         }
155         else
156         {
157                 DEBUG ("openldap plugin: Successfully connected to %s",
158                                 st->url);
159                 st->state = 1;
160                 return (0);
161         }
162 } /* }}} static cldap_init_host */
163
164 static void cldap_submit_value (const char *type, const char *type_instance, /* {{{ */
165                 value_t value, cldap_t *st)
166 {
167         value_list_t vl = VALUE_LIST_INIT;
168
169         vl.values     = &value;
170         vl.values_len = 1;
171
172         if ((st->host != NULL) && (strcmp ("localhost", st->host) != 0))
173                 sstrncpy (vl.host, st->host, sizeof (vl.host));
174
175         sstrncpy (vl.plugin, "openldap", sizeof (vl.plugin));
176         if (st->name != NULL)
177                 sstrncpy (vl.plugin_instance, st->name,
178                                 sizeof (vl.plugin_instance));
179
180         sstrncpy (vl.type, type, sizeof (vl.type));
181         if (type_instance != NULL)
182                 sstrncpy (vl.type_instance, type_instance,
183                                 sizeof (vl.type_instance));
184
185         plugin_dispatch_values (&vl);
186 } /* }}} void cldap_submit_value */
187
188 static void cldap_submit_derive (const char *type, const char *type_instance, /* {{{ */
189                 derive_t d, cldap_t *st)
190 {
191         cldap_submit_value (type, type_instance, (value_t) { .derive = d }, st);
192 } /* }}} void cldap_submit_derive */
193
194 static void cldap_submit_gauge (const char *type, const char *type_instance, /* {{{ */
195                 gauge_t g, cldap_t *st)
196 {
197         cldap_submit_value (type, type_instance, (value_t) { .gauge = g }, st);
198 } /* }}} void cldap_submit_gauge */
199
200 static int cldap_read_host (user_data_t *ud) /* {{{ */
201 {
202         cldap_t *st;
203         LDAPMessage *result;
204         char *dn;
205         int rc;
206         int status;
207
208         char *attrs[9] = { "monitorCounter",
209                                 "monitorOpCompleted",
210                                 "monitorOpInitiated",
211                                 "monitoredInfo",
212                                 "olmBDBEntryCache",
213                                 "olmBDBDNCache",
214                                 "olmBDBIDLCache",
215                                 "namingContexts",
216                                 NULL };
217
218         if ((ud == NULL) || (ud->data == NULL))
219         {
220                 ERROR ("openldap plugin: cldap_read_host: Invalid user data.");
221                 return (-1);
222         }
223
224         st = (cldap_t *) ud->data;
225
226         status = cldap_init_host (st);
227         if (status != 0)
228                 return (-1);
229
230         rc = ldap_search_ext_s (st->ld, "cn=Monitor", LDAP_SCOPE_SUBTREE,
231                 "(|(!(cn=* *))(cn=Database*))", attrs, 0,
232                 NULL, NULL, NULL, 0, &result);
233
234         if (rc != LDAP_SUCCESS)
235         {
236                 ERROR ("openldap plugin: Failed to execute search: %s",
237                                 ldap_err2string (rc));
238                 ldap_msgfree (result);
239                 st->state = 0;
240                 ldap_unbind_ext_s (st->ld, NULL, NULL);
241                 return (-1);
242         }
243
244         for (LDAPMessage *e = ldap_first_entry (st->ld, result); e != NULL;
245                 e = ldap_next_entry (st->ld, e))
246         {
247                 if ((dn = ldap_get_dn (st->ld, e)) != NULL)
248                 {
249                         unsigned long long counter = 0;
250                         unsigned long long opc = 0;
251                         unsigned long long opi = 0;
252                         unsigned long long info = 0;
253
254                         struct berval counter_data;
255                         struct berval opc_data;
256                         struct berval opi_data;
257                         struct berval info_data;
258                         struct berval olmbdb_data;
259                         struct berval nc_data;
260
261                         struct berval **counter_list;
262                         struct berval **opc_list;
263                         struct berval **opi_list;
264                         struct berval **info_list;
265                         struct berval **olmbdb_list;
266                         struct berval **nc_list;
267
268                         if ((counter_list = ldap_get_values_len (st->ld, e,
269                                 "monitorCounter")) != NULL)
270                         {
271                                 counter_data = *counter_list[0];
272                                 counter = atoll (counter_data.bv_val);
273                         }
274
275                         if ((opc_list = ldap_get_values_len (st->ld, e,
276                                 "monitorOpCompleted")) != NULL)
277                         {
278                                 opc_data = *opc_list[0];
279                                 opc = atoll (opc_data.bv_val);
280                         }
281
282                         if ((opi_list = ldap_get_values_len (st->ld, e,
283                                 "monitorOpInitiated")) != NULL)
284                         {
285                                 opi_data = *opi_list[0];
286                                 opi = atoll (opi_data.bv_val);
287                         }
288
289                         if ((info_list = ldap_get_values_len (st->ld, e,
290                                 "monitoredInfo")) != NULL)
291                         {
292                                 info_data = *info_list[0];
293                                 info = atoll (info_data.bv_val);
294                         }
295
296                         if (strcmp (dn, "cn=Total,cn=Connections,cn=Monitor")
297                                         == 0)
298                         {
299                                 cldap_submit_derive ("total_connections", NULL,
300                                         counter, st);
301                         }
302                         else if (strcmp (dn,
303                                         "cn=Current,cn=Connections,cn=Monitor")
304                                         == 0)
305                         {
306                                 cldap_submit_gauge ("current_connections", NULL,
307                                         counter, st);
308                         }
309                         else if (strcmp (dn,
310                                         "cn=Operations,cn=Monitor") == 0)
311                         {
312                                 cldap_submit_derive ("operations",
313                                         "completed", opc, st);
314                                 cldap_submit_derive ("operations",
315                                         "initiated", opi, st);
316                         }
317                         else if (strcmp (dn,
318                                         "cn=Bind,cn=Operations,cn=Monitor")
319                                         == 0)
320                         {
321                                 cldap_submit_derive ("operations",
322                                         "bind-completed", opc, st);
323                                 cldap_submit_derive ("operations",
324                                         "bind-initiated", opi, st);
325                         }
326                         else if (strcmp (dn,
327                                         "cn=UnBind,cn=Operations,cn=Monitor")
328                                         == 0)
329                         {
330                                 cldap_submit_derive ("operations",
331                                         "unbind-completed", opc, st);
332                                 cldap_submit_derive ("operations",
333                                         "unbind-initiated", opi, st);
334                         }
335                         else if (strcmp (dn,
336                                         "cn=Search,cn=Operations,cn=Monitor")
337                                         == 0)
338                         {
339                                 cldap_submit_derive ("operations",
340                                         "search-completed", opc, st);
341                                 cldap_submit_derive ("operations",
342                                         "search-initiated", opi, st);
343                         }
344                         else if (strcmp (dn,
345                                         "cn=Compare,cn=Operations,cn=Monitor")
346                                         == 0)
347                         {
348                                 cldap_submit_derive ("operations",
349                                         "compare-completed", opc, st);
350                                 cldap_submit_derive ("operations",
351                                         "compare-initiated", opi, st);
352                         }
353                         else if (strcmp (dn,
354                                         "cn=Modify,cn=Operations,cn=Monitor")
355                                         == 0)
356                         {
357                                 cldap_submit_derive ("operations",
358                                         "modify-completed", opc, st);
359                                 cldap_submit_derive ("operations",
360                                         "modify-initiated", opi, st);
361                         }
362                         else if (strcmp (dn,
363                                         "cn=Modrdn,cn=Operations,cn=Monitor")
364                                         == 0)
365                         {
366                                 cldap_submit_derive ("operations",
367                                         "modrdn-completed", opc, st);
368                                 cldap_submit_derive ("operations",
369                                         "modrdn-initiated", opi, st);
370                         }
371                         else if (strcmp (dn,
372                                         "cn=Add,cn=Operations,cn=Monitor")
373                                         == 0)
374                         {
375                                 cldap_submit_derive ("operations",
376                                         "add-completed", opc, st);
377                                 cldap_submit_derive ("operations",
378                                         "add-initiated", opi, st);
379                         }
380                         else if (strcmp (dn,
381                                         "cn=Delete,cn=Operations,cn=Monitor")
382                                         == 0)
383                         {
384                                 cldap_submit_derive ("operations",
385                                         "delete-completed", opc, st);
386                                 cldap_submit_derive ("operations",
387                                         "delete-initiated", opi, st);
388                         }
389                         else if (strcmp (dn,
390                                         "cn=Abandon,cn=Operations,cn=Monitor")
391                                         == 0)
392                         {
393                                 cldap_submit_derive ("operations",
394                                         "abandon-completed", opc, st);
395                                 cldap_submit_derive ("operations",
396                                         "abandon-initiated", opi, st);
397                         }
398                         else if (strcmp (dn,
399                                         "cn=Extended,cn=Operations,cn=Monitor")
400                                         == 0)
401                         {
402                                 cldap_submit_derive ("operations",
403                                         "extended-completed", opc, st);
404                                 cldap_submit_derive ("operations",
405                                         "extended-initiated", opi, st);
406                         }
407                         else if ((strncmp (dn, "cn=Database", 11) == 0)
408                                 && ((nc_list = ldap_get_values_len
409                                                 (st->ld, e, "namingContexts")) != NULL))
410                         {
411                                 nc_data = *nc_list[0];
412                                 char typeinst[DATA_MAX_NAME_LEN];
413
414                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
415                                         "olmBDBEntryCache")) != NULL)
416                                 {
417                                         olmbdb_data = *olmbdb_list[0];
418                                         ssnprintf (typeinst, sizeof (typeinst),
419                                                 "bdbentrycache-%s", nc_data.bv_val);
420                                         cldap_submit_gauge ("cache_size", typeinst,
421                                                 atoll (olmbdb_data.bv_val), st);
422                                         ldap_value_free_len (olmbdb_list);
423                                 }
424
425                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
426                                         "olmBDBDNCache")) != NULL)
427                                 {
428                                         olmbdb_data = *olmbdb_list[0];
429                                         ssnprintf (typeinst, sizeof (typeinst),
430                                                 "bdbdncache-%s", nc_data.bv_val);
431                                         cldap_submit_gauge ("cache_size", typeinst,
432                                                 atoll (olmbdb_data.bv_val), st);
433                                         ldap_value_free_len (olmbdb_list);
434                                 }
435
436                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
437                                         "olmBDBIDLCache")) != NULL)
438                                 {
439                                         olmbdb_data = *olmbdb_list[0];
440                                         ssnprintf (typeinst, sizeof (typeinst),
441                                                 "bdbidlcache-%s", nc_data.bv_val);
442                                         cldap_submit_gauge ("cache_size", typeinst,
443                                                 atoll (olmbdb_data.bv_val), st);
444                                         ldap_value_free_len (olmbdb_list);
445                                 }
446
447                                 ldap_value_free_len (nc_list);
448                         }
449                         else if (strcmp (dn,
450                                         "cn=Bytes,cn=Statistics,cn=Monitor")
451                                         == 0)
452                         {
453                                 cldap_submit_derive ("derive", "statistics-bytes",
454                                         counter, st);
455                         }
456                         else if (strcmp (dn,
457                                         "cn=PDU,cn=Statistics,cn=Monitor")
458                                         == 0)
459                         {
460                                 cldap_submit_derive ("derive", "statistics-pdu",
461                                         counter, st);
462                         }
463                         else if (strcmp (dn,
464                                         "cn=Entries,cn=Statistics,cn=Monitor")
465                                         == 0)
466                         {
467                                 cldap_submit_derive ("derive", "statistics-entries",
468                                         counter, st);
469                         }
470                         else if (strcmp (dn,
471                                         "cn=Referrals,cn=Statistics,cn=Monitor")
472                                         == 0)
473                         {
474                                 cldap_submit_derive ("derive", "statistics-referrals",
475                                         counter, st);
476                         }
477                         else if (strcmp (dn,
478                                         "cn=Open,cn=Threads,cn=Monitor")
479                                         == 0)
480                         {
481                                 cldap_submit_gauge ("threads", "threads-open",
482                                         info, st);
483                         }
484                         else if (strcmp (dn,
485                                         "cn=Starting,cn=Threads,cn=Monitor")
486                                         == 0)
487                         {
488                                 cldap_submit_gauge ("threads", "threads-starting",
489                                         info, st);
490                         }
491                         else if (strcmp (dn,
492                                         "cn=Active,cn=Threads,cn=Monitor")
493                                         == 0)
494                         {
495                                 cldap_submit_gauge ("threads", "threads-active",
496                                         info, st);
497                         }
498                         else if (strcmp (dn,
499                                         "cn=Pending,cn=Threads,cn=Monitor")
500                                         == 0)
501                         {
502                                 cldap_submit_gauge ("threads", "threads-pending",
503                                         info, st);
504                         }
505                         else if (strcmp (dn,
506                                         "cn=Backload,cn=Threads,cn=Monitor")
507                                         == 0)
508                         {
509                                 cldap_submit_gauge ("threads", "threads-backload",
510                                         info, st);
511                         }
512                         else if (strcmp (dn,
513                                         "cn=Read,cn=Waiters,cn=Monitor")
514                                         == 0)
515                         {
516                                 cldap_submit_derive ("derive", "waiters-read",
517                                         counter, st);
518                         }
519                         else if (strcmp (dn,
520                                         "cn=Write,cn=Waiters,cn=Monitor")
521                                         == 0)
522                         {
523                                 cldap_submit_derive ("derive", "waiters-write",
524                                         counter, st);
525                         }
526
527                         ldap_value_free_len (counter_list);
528                         ldap_value_free_len (opc_list);
529                         ldap_value_free_len (opi_list);
530                         ldap_value_free_len (info_list);
531                 }
532
533                 ldap_memfree (dn);
534         }
535
536         ldap_msgfree (result);
537         return (0);
538 } /* }}} int cldap_read_host */
539
540 /* Configuration handling functions {{{
541  *
542  * <Plugin ldap>
543  *   <Instance "plugin_instance1">
544  *     URL "ldap://localhost"
545  *     ...
546  *   </Instance>
547  * </Plugin>
548  */
549
550 static int cldap_config_add (oconfig_item_t *ci) /* {{{ */
551 {
552         cldap_t *st;
553         int status;
554
555         st = calloc (1, sizeof (*st));
556         if (st == NULL)
557         {
558                 ERROR ("openldap plugin: calloc failed.");
559                 return (-1);
560         }
561
562         status = cf_util_get_string (ci, &st->name);
563         if (status != 0)
564         {
565                 sfree (st);
566                 return (status);
567         }
568
569         st->starttls = 0;
570         st->timeout = (long) CDTIME_T_TO_TIME_T(plugin_get_interval());
571         st->verifyhost = 1;
572         st->version = LDAP_VERSION3;
573
574         for (int i = 0; i < ci->children_num; i++)
575         {
576                 oconfig_item_t *child = ci->children + i;
577
578                 if (strcasecmp ("BindDN", child->key) == 0)
579                         status = cf_util_get_string (child, &st->binddn);
580                 else if (strcasecmp ("Password", child->key) == 0)
581                         status = cf_util_get_string (child, &st->password);
582                 else if (strcasecmp ("CACert", child->key) == 0)
583                         status = cf_util_get_string (child, &st->cacert);
584                 else if (strcasecmp ("StartTLS", child->key) == 0)
585                         status = cf_util_get_boolean (child, &st->starttls);
586                 else if (strcasecmp ("Timeout", child->key) == 0)
587                         status = cf_util_get_int (child, &st->timeout);
588                 else if (strcasecmp ("URL", child->key) == 0)
589                         status = cf_util_get_string (child, &st->url);
590                 else if (strcasecmp ("VerifyHost", child->key) == 0)
591                         status = cf_util_get_boolean (child, &st->verifyhost);
592                 else if (strcasecmp ("Version", child->key) == 0)
593                         status = cf_util_get_int (child, &st->version);
594                 else
595                 {
596                         WARNING ("openldap plugin: Option `%s' not allowed here.",
597                                         child->key);
598                         status = -1;
599                 }
600
601                 if (status != 0)
602                         break;
603         }
604
605         /* Check if struct is complete.. */
606         if ((status == 0) && (st->url == NULL))
607         {
608                 ERROR ("openldap plugin: Instance `%s': "
609                                 "No URL has been configured.",
610                                 st->name);
611                 status = -1;
612         }
613
614         /* Check if URL is valid */
615         if ((status == 0) && (st->url != NULL))
616         {
617                 LDAPURLDesc *ludpp;
618
619                 if (ldap_url_parse (st->url, &ludpp) != 0)
620                 {
621                         ERROR ("openldap plugin: Instance `%s': "
622                                 "Invalid URL: `%s'",
623                                 st->name, st->url);
624                         status = -1;
625                 }
626
627                 if ((status == 0) && (ludpp->lud_host != NULL))
628                         st->host = strdup (ludpp->lud_host);
629
630                 ldap_free_urldesc (ludpp);
631         }
632
633         if (status == 0)
634         {
635                 cldap_t **temp;
636
637                 temp = (cldap_t **) realloc (databases,
638                         sizeof (*databases) * (databases_num + 1));
639
640                 if (temp == NULL)
641                 {
642                         ERROR ("openldap plugin: realloc failed");
643                         status = -1;
644                 }
645                 else
646                 {
647                         char callback_name[3*DATA_MAX_NAME_LEN] = { 0 };
648
649                         databases = temp;
650                         databases[databases_num] = st;
651                         databases_num++;
652
653                         ssnprintf (callback_name, sizeof (callback_name),
654                                         "openldap/%s/%s",
655                                         (st->host != NULL) ? st->host : hostname_g,
656                                         (st->name != NULL) ? st->name : "default");
657
658                         status = plugin_register_complex_read (/* group = */ NULL,
659                                         /* name      = */ callback_name,
660                                         /* callback  = */ cldap_read_host,
661                                         /* interval  = */ 0,
662                                         &(user_data_t) {
663                                                 .data = st,
664                                         });
665                 }
666         }
667
668         if (status != 0)
669         {
670                 cldap_free (st);
671                 return (-1);
672         }
673
674         return (0);
675 } /* }}} int cldap_config_add */
676
677 static int cldap_config (oconfig_item_t *ci) /* {{{ */
678 {
679         int status = 0;
680
681         for (int i = 0; i < ci->children_num; i++)
682         {
683                 oconfig_item_t *child = ci->children + i;
684
685                 if (strcasecmp ("Instance", child->key) == 0)
686                         cldap_config_add (child);
687                 else
688                         WARNING ("openldap plugin: The configuration option "
689                                         "\"%s\" is not allowed here. Did you "
690                                         "forget to add an <Instance /> block "
691                                         "around the configuration?",
692                                         child->key);
693         } /* for (ci->children) */
694
695         return (status);
696 } /* }}} int cldap_config */
697
698 /* }}} End of configuration handling functions */
699
700 static int cldap_init (void) /* {{{ */
701 {
702         /* Initialize LDAP library while still single-threaded as recommended in
703          * ldap_initialize(3) */
704         int debug_level;
705         ldap_get_option (NULL, LDAP_OPT_DEBUG_LEVEL, &debug_level);
706         return (0);
707 } /* }}} int cldap_init */
708
709 static int cldap_shutdown (void) /* {{{ */
710 {
711         for (size_t i = 0; i < databases_num; i++)
712                 if (databases[i]->ld != NULL)
713                         ldap_unbind_ext_s (databases[i]->ld, NULL, NULL);
714         sfree (databases);
715         databases_num = 0;
716
717         return (0);
718 } /* }}} int cldap_shutdown */
719
720 void module_register (void) /* {{{ */
721 {
722         plugin_register_complex_config ("openldap", cldap_config);
723         plugin_register_init ("openldap", cldap_init);
724         plugin_register_shutdown ("openldap", cldap_shutdown);
725 } /* }}} void module_register */
726
727 #if defined(__APPLE__)
728 #pragma clang diagnostic pop
729 #endif