src/openldap.c

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