src/openldap.c

   1 /**
   2  * collectd - src/openldap.c
   3  * Copyright (C) 2011       Kimo Rosenbaum
   4  *
   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.
   8  *
   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.
  13  *
  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
  17  *
  18  * Authors:
  19  *   Kimo Rosenbaum <kimor79 at yahoo.com>
  20  **/
  21
  22 #include "collectd.h"
  23 #include "common.h"
  24 #include "plugin.h"
  25 #include "configfile.h"
  26
  27 #include <lber.h>
  28 #include <ldap.h>
  29
  30 struct ldap_s /* {{{ */
  31 {
  32         char *name;
  33
  34         char *cacert;
  35         char *host;
  36         int   state;
  37         int   starttls;
  38         int   timeout;
  39         char *url;
  40         int   verifyhost;
  41         int   version;
  42
  43         LDAP *ld;
  44         char *dn;
  45 };
  46 typedef struct ldap_s ldap_t; /* }}} */
  47
  48 static void ldap_free (ldap_t *st) /* {{{ */
  49 {
  50         if(st == NULL)
  51                 return;
  52
  53         sfree (st->cacert);
  54         sfree (st->host);
  55         sfree (st->name);
  56         sfree (st->url);
  57         if(st->ld)
  58                 ldap_memfree(st->ld);
  59         sfree (st);
  60 } /* }}} void ldap_free */
  61 /* initialize ldap for each host */
  62 static int ldap_init_host (ldap_t *st) /* {{{ */
  63 {
  64         LDAP *ld;
  65         int rc;
  66         rc = ldap_initialize (&ld, st->url);
  67         if (rc != LDAP_SUCCESS)
  68         {
  69                 char errbuf[1024];
  70                 sstrerror (errno, errbuf, sizeof (errbuf));
  71                 ERROR ("ldap_initialize failed: %s", errbuf);
  72                 st->state = 0;
  73                 return (-1);
  74         }
  75
  76         st->ld = ld;
  77
  78         ldap_set_option (st->ld, LDAP_OPT_PROTOCOL_VERSION, &st->version);
  79
  80         if(st->cacert != NULL)
  81                 ldap_set_option (st->ld, LDAP_OPT_X_TLS_CACERTFILE, st->cacert);
  82
  83         if(st->verifyhost == 0)
  84         {
  85                 int never = LDAP_OPT_X_TLS_NEVER;
  86                 ldap_set_option (st->ld, LDAP_OPT_X_TLS_REQUIRE_CERT, &never);
  87         }
  88
  89         if(st->starttls != 0)
  90         {
  91                 rc = ldap_start_tls_s(ld, NULL, NULL);
  92                 if (rc != LDAP_SUCCESS)
  93                 {
  94                         ERROR ("openldap plugin: Failed to start tls on %s: %s",
  95                                         st->url, ldap_err2string (rc));
  96                         st->state = 0;
  97                         ldap_unbind_ext_s(st->ld, NULL, NULL);
  98                         return (-1);
  99                 }
 100         }
 101
 102         struct berval cred;
 103         cred.bv_val = "";
 104         cred.bv_len = 0;
 105
 106         rc = ldap_sasl_bind_s(st->ld, NULL, NULL, &cred, NULL, NULL, NULL);
 107         if (rc != LDAP_SUCCESS)
 108         {
 109                 ERROR ("openldap plugin: Failed to bind to %s: %s",
 110                                 st->url, ldap_err2string (rc));
 111                 st->state = 0;
 112                 ldap_unbind_ext_s(st->ld, NULL, NULL);
 113                 return (-1);
 114         }
 115         else
 116         {
 117                 DEBUG ("openldap plugin: Successfully connected to %s",
 118                                 st->url);
 119                 st->state = 1;
 120                 return (0);
 121         }
 122 } /* }}} static ldap_init_host */
 123
 124 static void ldap_submit_value (const char *type, const char *type_instance, /* {{{ */
 125                 value_t value, ldap_t *st)
 126 {
 127         value_list_t vl = VALUE_LIST_INIT;
 128
 129         vl.values     = &value;
 130         vl.values_len = 1;
 131
 132         if ((st->host == NULL)
 133                         || (strcmp ("", st->host) == 0)
 134                         || (strcmp ("localhost", st->host) == 0))
 135         {
 136                 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 137         }
 138         else
 139         {
 140                 sstrncpy (vl.host, st->host, sizeof (vl.host));
 141         }
 142
 143         sstrncpy (vl.plugin, "openldap", sizeof (vl.plugin));
 144         if (st->name != NULL)
 145                 sstrncpy (vl.plugin_instance, st->name,
 146                                 sizeof (vl.plugin_instance));
 147
 148         sstrncpy (vl.type, type, sizeof (vl.type));
 149         if (type_instance != NULL)
 150                 sstrncpy (vl.type_instance, type_instance,
 151                                 sizeof (vl.type_instance));
 152
 153         plugin_dispatch_values (&vl);
 154 } /* }}} void ldap_submit_value */
 155
 156 static void ldap_submit_derive (const char *type, const char *type_instance, /* {{{ */
 157                 derive_t d, ldap_t *st)
 158 {
 159         value_t v;
 160         v.derive = d;
 161         ldap_submit_value (type, type_instance, v, st);
 162 } /* }}} void ldap_submit_derive */
 163
 164 static void ldap_submit_gauge (const char *type, const char *type_instance, /* {{{ */
 165                 gauge_t g, ldap_t *st)
 166 {
 167         value_t v;
 168         v.gauge = g;
 169         ldap_submit_value (type, type_instance, v, st);
 170 } /* }}} void ldap_submit_gauge */
 171
 172 static int ldap_read_host (user_data_t *ud) /* {{{ */
 173 {
 174         ldap_t *st;
 175         LDAPMessage *e, *result;
 176         char *dn;
 177         int rc;
 178         int status;
 179
 180         char *attrs[9] = { "monitorCounter",
 181                                 "monitorOpCompleted",
 182                                 "monitorOpInitiated",
 183                                 "monitoredInfo",
 184                                 "olmBDBEntryCache",
 185                                 "olmBDBDNCache",
 186                                 "olmBDBIDLCache",
 187                                 "namingContexts",
 188                                 NULL };
 189
 190         if ((ud == NULL) || (ud->data == NULL))
 191         {
 192                 ERROR ("openldap plugin: ldap_read_host: Invalid user data.");
 193                 return (-1);
 194         }
 195
 196         st = (ldap_t *) ud->data;
 197
 198         status = ldap_init_host (st);
 199         if (status != 0)
 200                 return (-1);
 201
 202         rc = ldap_search_ext_s (st->ld, "cn=Monitor", LDAP_SCOPE_SUBTREE,
 203                 "(|(!(cn=* *))(cn=Database*))", attrs, 0,
 204                 NULL, NULL, NULL, 0, &result);
 205
 206         if (rc != LDAP_SUCCESS)
 207         {
 208                 ERROR ("openldap plugin: Failed to execute search: %s",
 209                                 ldap_err2string (rc));
 210                 ldap_msgfree (result);
 211                 return (-1);
 212         }
 213
 214         for (e = ldap_first_entry (st->ld, result); e != NULL;
 215                 e = ldap_next_entry (st->ld, e))
 216         {
 217                 if ((dn = ldap_get_dn (st->ld, e)) != NULL)
 218                 {
 219                         unsigned long long counter = 0;
 220                         unsigned long long opc = 0;
 221                         unsigned long long opi = 0;
 222                         unsigned long long info = 0;
 223
 224                         struct berval counter_data;
 225                         struct berval opc_data;
 226                         struct berval opi_data;
 227                         struct berval info_data;
 228                         struct berval olmbdb_data;
 229                         struct berval nc_data;
 230
 231                         struct berval **counter_list;
 232                         struct berval **opc_list;
 233                         struct berval **opi_list;
 234                         struct berval **info_list;
 235                         struct berval **olmbdb_list;
 236                         struct berval **nc_list;
 237
 238                         if ((counter_list = ldap_get_values_len (st->ld, e,
 239                                 "monitorCounter")) != NULL)
 240                         {
 241                                 counter_data = *counter_list[0];
 242                                 counter = atoll (counter_data.bv_val);
 243                         }
 244
 245                         if ((opc_list = ldap_get_values_len (st->ld, e,
 246                                 "monitorOpCompleted")) != NULL)
 247                         {
 248                                 opc_data = *opc_list[0];
 249                                 opc = atoll (opc_data.bv_val);
 250                         }
 251
 252                         if ((opi_list = ldap_get_values_len (st->ld, e,
 253                                 "monitorOpInitiated")) != NULL)
 254                         {
 255                                 opi_data = *opi_list[0];
 256                                 opi = atoll (opi_data.bv_val);
 257                         }
 258
 259                         if ((info_list = ldap_get_values_len (st->ld, e,
 260                                 "monitoredInfo")) != NULL)
 261                         {
 262                                 info_data = *info_list[0];
 263                                 info = atoll (info_data.bv_val);
 264                         }
 265
 266                         if (strcmp (dn, "cn=Total,cn=Connections,cn=Monitor")
 267                                         == 0)
 268                         {
 269                                 ldap_submit_derive ("total_connections", NULL,
 270                                         counter, st);
 271                         }
 272                         else if (strcmp (dn,
 273                                         "cn=Current,cn=Connections,cn=Monitor")
 274                                         == 0)
 275                         {
 276                                 ldap_submit_gauge ("current_connections", NULL,
 277                                         counter, st);
 278                         }
 279                         else if (strcmp (dn,
 280                                         "cn=Operations,cn=Monitor") == 0)
 281                         {
 282                                 ldap_submit_derive ("operations",
 283                                         "completed", opc, st);
 284                                 ldap_submit_derive ("operations",
 285                                         "initiated", opi, st);
 286                         }
 287                         else if (strcmp (dn,
 288                                         "cn=Bind,cn=Operations,cn=Monitor")
 289                                         == 0)
 290                         {
 291                                 ldap_submit_derive ("operations",
 292                                         "bind-completed", opc, st);
 293                                 ldap_submit_derive ("operations",
 294                                         "bind-initiated", opi, st);
 295                         }
 296                         else if (strcmp (dn,
 297                                         "cn=UnBind,cn=Operations,cn=Monitor")
 298                                         == 0)
 299                         {
 300                                 ldap_submit_derive ("operations",
 301                                         "unbind-completed", opc, st);
 302                                 ldap_submit_derive ("operations",
 303                                         "unbind-initiated", opi, st);
 304                         }
 305                         else if (strcmp (dn,
 306                                         "cn=Search,cn=Operations,cn=Monitor")
 307                                         == 0)
 308                         {
 309                                 ldap_submit_derive ("operations",
 310                                         "search-completed", opc, st);
 311                                 ldap_submit_derive ("operations",
 312                                         "search-initiated", opi, st);
 313                         }
 314                         else if (strcmp (dn,
 315                                         "cn=Compare,cn=Operations,cn=Monitor")
 316                                         == 0)
 317                         {
 318                                 ldap_submit_derive ("operations",
 319                                         "compare-completed", opc, st);
 320                                 ldap_submit_derive ("operations",
 321                                         "compare-initiated", opi, st);
 322                         }
 323                         else if (strcmp (dn,
 324                                         "cn=Modify,cn=Operations,cn=Monitor")
 325                                         == 0)
 326                         {
 327                                 ldap_submit_derive ("operations",
 328                                         "modify-completed", opc, st);
 329                                 ldap_submit_derive ("operations",
 330                                         "modify-initiated", opi, st);
 331                         }
 332                         else if (strcmp (dn,
 333                                         "cn=Modrdn,cn=Operations,cn=Monitor")
 334                                         == 0)
 335                         {
 336                                 ldap_submit_derive ("operations",
 337                                         "modrdn-completed", opc, st);
 338                                 ldap_submit_derive ("operations",
 339                                         "modrdn-initiated", opi, st);
 340                         }
 341                         else if (strcmp (dn,
 342                                         "cn=Add,cn=Operations,cn=Monitor")
 343                                         == 0)
 344                         {
 345                                 ldap_submit_derive ("operations",
 346                                         "add-completed", opc, st);
 347                                 ldap_submit_derive ("operations",
 348                                         "add-initiated", opi, st);
 349                         }
 350                         else if (strcmp (dn,
 351                                         "cn=Delete,cn=Operations,cn=Monitor")
 352                                         == 0)
 353                         {
 354                                 ldap_submit_derive ("operations",
 355                                         "delete-completed", opc, st);
 356                                 ldap_submit_derive ("operations",
 357                                         "delete-initiated", opi, st);
 358                         }
 359                         else if (strcmp (dn,
 360                                         "cn=Abandon,cn=Operations,cn=Monitor")
 361                                         == 0)
 362                         {
 363                                 ldap_submit_derive ("operations",
 364                                         "abandon-completed", opc, st);
 365                                 ldap_submit_derive ("operations",
 366                                         "abandon-initiated", opi, st);
 367                         }
 368                         else if (strcmp (dn,
 369                                         "cn=Extended,cn=Operations,cn=Monitor")
 370                                         == 0)
 371                         {
 372                                 ldap_submit_derive ("operations",
 373                                         "extended-completed", opc, st);
 374                                 ldap_submit_derive ("operations",
 375                                         "extended-initiated", opi, st);
 376                         }
 377                         else if ((strncmp (dn, "cn=Database", 11) == 0)
 378                                 && ((nc_list = ldap_get_values_len
 379                                                 (st->ld, e, "namingContexts")) != NULL))
 380                         {
 381                                 nc_data = *nc_list[0];
 382                                 char typeinst[DATA_MAX_NAME_LEN];
 383
 384                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
 385                                         "olmBDBEntryCache")) != NULL)
 386                                 {
 387                                         olmbdb_data = *olmbdb_list[0];
 388                                         ssnprintf (typeinst, sizeof (typeinst),
 389                                                 "bdbentrycache-%s", nc_data.bv_val);
 390                                         ldap_submit_gauge ("cache_size", typeinst,
 391                                                 atoll (olmbdb_data.bv_val), st);
 392                                         ldap_value_free_len (olmbdb_list);
 393                                 }
 394
 395                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
 396                                         "olmBDBDNCache")) != NULL)
 397                                 {
 398                                         olmbdb_data = *olmbdb_list[0];
 399                                         ssnprintf (typeinst, sizeof (typeinst),
 400                                                 "bdbdncache-%s", nc_data.bv_val);
 401                                         ldap_submit_gauge ("cache_size", typeinst,
 402                                                 atoll (olmbdb_data.bv_val), st);
 403                                         ldap_value_free_len (olmbdb_list);
 404                                 }
 405
 406                                 if ((olmbdb_list = ldap_get_values_len (st->ld, e,
 407                                         "olmBDBIDLCache")) != NULL)
 408                                 {
 409                                         olmbdb_data = *olmbdb_list[0];
 410                                         ssnprintf (typeinst, sizeof (typeinst),
 411                                                 "bdbidlcache-%s", nc_data.bv_val);
 412                                         ldap_submit_gauge ("cache_size", typeinst,
 413                                                 atoll (olmbdb_data.bv_val), st);
 414                                         ldap_value_free_len (olmbdb_list);
 415                                 }
 416
 417                                 ldap_value_free_len (nc_list);
 418                         }
 419                         else if (strcmp (dn,
 420                                         "cn=Bytes,cn=Statistics,cn=Monitor")
 421                                         == 0)
 422                         {
 423                                 ldap_submit_derive ("derive", "statistics-bytes",
 424                                         counter, st);
 425                         }
 426                         else if (strcmp (dn,
 427                                         "cn=PDU,cn=Statistics,cn=Monitor")
 428                                         == 0)
 429                         {
 430                                 ldap_submit_derive ("derive", "statistics-pdu",
 431                                         counter, st);
 432                         }
 433                         else if (strcmp (dn,
 434                                         "cn=Entries,cn=Statistics,cn=Monitor")
 435                                         == 0)
 436                         {
 437                                 ldap_submit_derive ("derive", "statistics-entries",
 438                                         counter, st);
 439                         }
 440                         else if (strcmp (dn,
 441                                         "cn=Referrals,cn=Statistics,cn=Monitor")
 442                                         == 0)
 443                         {
 444                                 ldap_submit_derive ("derive", "statistics-referrals",
 445                                         counter, st);
 446                         }
 447                         else if (strcmp (dn,
 448                                         "cn=Open,cn=Threads,cn=Monitor")
 449                                         == 0)
 450                         {
 451                                 ldap_submit_gauge ("threads", "threads-open",
 452                                         info, st);
 453                         }
 454                         else if (strcmp (dn,
 455                                         "cn=Starting,cn=Threads,cn=Monitor")
 456                                         == 0)
 457                         {
 458                                 ldap_submit_gauge ("threads", "threads-starting",
 459                                         info, st);
 460                         }
 461                         else if (strcmp (dn,
 462                                         "cn=Active,cn=Threads,cn=Monitor")
 463                                         == 0)
 464                         {
 465                                 ldap_submit_gauge ("threads", "threads-active",
 466                                         info, st);
 467                         }
 468                         else if (strcmp (dn,
 469                                         "cn=Pending,cn=Threads,cn=Monitor")
 470                                         == 0)
 471                         {
 472                                 ldap_submit_gauge ("threads", "threads-pending",
 473                                         info, st);
 474                         }
 475                         else if (strcmp (dn,
 476                                         "cn=Backload,cn=Threads,cn=Monitor")
 477                                         == 0)
 478                         {
 479                                 ldap_submit_gauge ("threads", "threads-backload",
 480                                         info, st);
 481                         }
 482                         else if (strcmp (dn,
 483                                         "cn=Read,cn=Waiters,cn=Monitor")
 484                                         == 0)
 485                         {
 486                                 ldap_submit_derive ("derive", "waiters-read",
 487                                         counter, st);
 488                         }
 489                         else if (strcmp (dn,
 490                                         "cn=Write,cn=Waiters,cn=Monitor")
 491                                         == 0)
 492                         {
 493                                 ldap_submit_derive ("derive", "waiters-write",
 494                                         counter, st);
 495                         }
 496
 497                         ldap_value_free_len (counter_list);
 498                         ldap_value_free_len (opc_list);
 499                         ldap_value_free_len (opi_list);
 500                         ldap_value_free_len (info_list);
 501                 }
 502
 503                 ldap_memfree (dn);
 504         }
 505
 506         ldap_msgfree (result);
 507         ldap_unbind_ext_s (st->ld, NULL, NULL);
 508         return (0);
 509 } /* }}} int ldap_read_host */
 510
 511 /* Configuration handling functions {{{
 512  *
 513  * <Plugin ldap>
 514  *   <Instance "plugin_instance1">
 515  *     URL "ldap://localhost"
 516  *     ...
 517  *   </Instance>
 518  * </Plugin>
 519  */
 520
 521 static int ldap_config_set_string (char **ret_string, /* {{{ */
 522                                     oconfig_item_t *ci)
 523 {
 524         char *string;
 525
 526         if ((ci->values_num != 1)
 527             || (ci->values[0].type != OCONFIG_TYPE_STRING))
 528         {
 529                 WARNING ("openldap plugin: The `%s' config option "
 530                          "needs exactly one string argument.", ci->key);
 531                 return (-1);
 532         }
 533
 534         string = strdup (ci->values[0].value.string);
 535         if (string == NULL)
 536         {
 537                 ERROR ("openldap plugin: strdup failed.");
 538                 return (-1);
 539         }
 540
 541         if (*ret_string != NULL)
 542                 free (*ret_string);
 543         *ret_string = string;
 544
 545         return (0);
 546 } /* }}} int ldap_config_set_string */
 547
 548 static int ldap_config_set_int (int *ret_int, /* {{{ */
 549                                  oconfig_item_t *ci)
 550 {
 551         if ((ci->values_num != 1)
 552             || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
 553         {
 554                 WARNING ("openldap plugin: The `%s' config option "
 555                          "needs exactly one string argument.", ci->key);
 556                 return (-1);
 557         }
 558
 559         *ret_int = ci->values[0].value.number;
 560
 561         return (0);
 562 } /* }}} int ldap_config_set_int */
 563
 564 static int ldap_config_set_bool (int *ret_boolean, /* {{{ */
 565                                 oconfig_item_t *ci)
 566 {
 567         int status = 0;
 568
 569         if (ci->values_num != 1)
 570                 status = -1;
 571
 572         if (status == 0)
 573         {
 574                 if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN)
 575                         *ret_boolean = ci->values[0].value.boolean;
 576                 else if (ci->values[0].type == OCONFIG_TYPE_STRING)
 577                 {
 578                         if (IS_TRUE (ci->values[0].value.string))
 579                                 *ret_boolean = 1;
 580                         else if (IS_FALSE (ci->values[0].value.string))
 581                                 *ret_boolean = 0;
 582                         else
 583                                 status = -1;
 584                 }
 585                 else
 586                         status = -1;
 587         }
 588
 589         if (status != 0)
 590         {
 591                 WARNING ("openldap plugin: The `%s' config option "
 592                         "needs exactly one boolean argument.", ci->key);
 593                 return (-1);
 594         }
 595         return (0);
 596 } /* }}} int ldap_config_set_bool */
 597
 598 static int ldap_config_add (oconfig_item_t *ci) /* {{{ */
 599 {
 600         ldap_t *st;
 601         int i;
 602         int status;
 603
 604         if ((ci->values_num != 1)
 605             || (ci->values[0].type != OCONFIG_TYPE_STRING))
 606         {
 607                 WARNING ("openldap plugin: The `%s' config option "
 608                          "needs exactly one string argument.", ci->key);
 609                 return (-1);
 610         }
 611
 612         st = (ldap_t *) malloc (sizeof (*st));
 613         if (st == NULL)
 614         {
 615                 ERROR ("openldap plugin: malloc failed.");
 616                 return (-1);
 617         }
 618         memset (st, 0, sizeof (*st));
 619
 620         status = ldap_config_set_string (&st->name, ci);
 621         if (status != 0)
 622         {
 623                 sfree (st);
 624                 return (status);
 625         }
 626
 627         st->verifyhost = 1;
 628         st->version = LDAP_VERSION3;
 629
 630         for (i = 0; i < ci->children_num; i++)
 631         {
 632                 oconfig_item_t *child = ci->children + i;
 633
 634                 if (strcasecmp ("CACert", child->key) == 0)
 635                         status = ldap_config_set_string (&st->cacert, child);
 636                 else if (strcasecmp ("StartTLS", child->key) == 0)
 637                         status = ldap_config_set_bool (&st->starttls, child);
 638                 else if (strcasecmp ("Timeout", child->key) == 0)
 639                         status = ldap_config_set_int (&st->timeout, child);
 640                 else if (strcasecmp ("URL", child->key) == 0)
 641                         status = ldap_config_set_string (&st->url, child);
 642                 else if (strcasecmp ("VerifyHost", child->key) == 0)
 643                         status = ldap_config_set_bool (&st->verifyhost, child);
 644                 else if (strcasecmp ("Version", child->key) == 0)
 645                         status = ldap_config_set_int (&st->version, child);
 646                 else
 647                 {
 648                         WARNING ("openldap plugin: Option `%s' not allowed here.",
 649                                         child->key);
 650                         status = -1;
 651                 }
 652
 653                 if (status != 0)
 654                         break;
 655         }
 656
 657         /* Check if struct is complete.. */
 658         if ((status == 0) && (st->url == NULL))
 659         {
 660                 ERROR ("openldap plugin: Instance `%s': "
 661                                 "No URL has been configured.",
 662                                 st->name);
 663                 status = -1;
 664         }
 665
 666         /* Check if URL is valid */
 667         if ((status == 0) && (st->url != NULL))
 668         {
 669                 LDAPURLDesc *ludpp;
 670                 int rc;
 671
 672                 if ((rc = ldap_url_parse( st->url, &ludpp)) != 0)
 673                 {
 674                         ERROR ("openldap plugin: Instance `%s': "
 675                                 "Invalid URL: `%s'",
 676                                 st->name, st->url);
 677                         status = -1;
 678                 }
 679                 else
 680                 {
 681                         st->host = strdup (ludpp->lud_host);
 682                 }
 683
 684                 ldap_free_urldesc(ludpp);
 685         }
 686
 687         if (status == 0)
 688         {
 689                 user_data_t ud;
 690                 char callback_name[3*DATA_MAX_NAME_LEN];
 691
 692                 memset (&ud, 0, sizeof (ud));
 693                 ud.data = st;
 694
 695                 memset (callback_name, 0, sizeof (callback_name));
 696                 ssnprintf (callback_name, sizeof (callback_name),
 697                                 "openldap/%s/%s",
 698                                 (st->host != NULL) ? st->host : hostname_g,
 699                                 (st->name != NULL) ? st->name : "default"),
 700
 701                 status = plugin_register_complex_read (/* group = */ NULL,
 702                                 /* name      = */ callback_name,
 703                                 /* callback  = */ ldap_read_host,
 704                                 /* interval  = */ NULL,
 705                                 /* user_data = */ &ud);
 706         }
 707
 708         if (status != 0)
 709         {
 710                 ldap_free (st);
 711                 return (-1);
 712         }
 713
 714         return (0);
 715 } /* }}} int ldap_config_add */
 716
 717 static int ldap_config (oconfig_item_t *ci) /* {{{ */
 718 {
 719         int i;
 720         int status = 0;
 721
 722         for (i = 0; i < ci->children_num; i++)
 723         {
 724                 oconfig_item_t *child = ci->children + i;
 725
 726                 if (strcasecmp ("Instance", child->key) == 0)
 727                         ldap_config_add (child);
 728                 else
 729                         WARNING ("openldap plugin: The configuration option "
 730                                         "\"%s\" is not allowed here. Did you "
 731                                         "forget to add an <Instance /> block "
 732                                         "around the configuration?",
 733                                         child->key);
 734         } /* for (ci->children) */
 735
 736         return (status);
 737 } /* }}} int ldap_config */
 738
 739 /* }}} End of configuration handling functions */
 740
 741 void module_register (void) /* {{{ */
 742 {
 743         plugin_register_complex_config ("openldap", ldap_config);
 744 } /* }}} void module_register */