2 * collectd - src/openldap.c
3 * Copyright (C) 2011 Kimo Rosenbaum
4 * Copyright (C) 2014-2015 Marc Fournier
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
25 * Kimo Rosenbaum <kimor79 at yahoo.com>
26 * Marc Fournier <marc.fournier at camptocamp.com>
34 #if defined(__APPLE__)
35 #pragma clang diagnostic push
36 #pragma clang diagnostic warning "-Wdeprecated-declarations"
42 struct cldap_s /* {{{ */
59 typedef struct cldap_s cldap_t; /* }}} */
61 static cldap_t **databases = NULL;
62 static size_t databases_num = 0;
64 static void cldap_free(cldap_t *st) /* {{{ */
78 } /* }}} void cldap_free */
80 /* initialize ldap for each host */
81 static int cldap_init_host(cldap_t *st) /* {{{ */
86 if (st->state && st->ld) {
87 DEBUG("openldap plugin: Already connected to %s", st->url);
91 rc = ldap_initialize(&ld, st->url);
92 if (rc != LDAP_SUCCESS) {
93 ERROR("openldap plugin: ldap_initialize failed: %s", ldap_err2string(rc));
95 ldap_unbind_ext_s(ld, NULL, NULL);
101 ldap_set_option(st->ld, LDAP_OPT_PROTOCOL_VERSION, &st->version);
103 ldap_set_option(st->ld, LDAP_OPT_TIMEOUT,
104 &(const struct timeval){st->timeout, 0});
106 ldap_set_option(st->ld, LDAP_OPT_RESTART, LDAP_OPT_ON);
108 if (st->cacert != NULL)
109 ldap_set_option(st->ld, LDAP_OPT_X_TLS_CACERTFILE, st->cacert);
111 if (st->verifyhost == 0) {
112 int never = LDAP_OPT_X_TLS_NEVER;
113 ldap_set_option(st->ld, LDAP_OPT_X_TLS_REQUIRE_CERT, &never);
116 if (st->starttls != 0) {
117 rc = ldap_start_tls_s(ld, NULL, NULL);
118 if (rc != LDAP_SUCCESS) {
119 ERROR("openldap plugin: Failed to start tls on %s: %s", st->url,
120 ldap_err2string(rc));
122 ldap_unbind_ext_s(st->ld, NULL, NULL);
128 if (st->password != NULL) {
129 cred.bv_val = st->password;
130 cred.bv_len = strlen(st->password);
136 rc = ldap_sasl_bind_s(st->ld, st->binddn, LDAP_SASL_SIMPLE, &cred, NULL, NULL,
138 if (rc != LDAP_SUCCESS) {
139 ERROR("openldap plugin: Failed to bind to %s: %s", st->url,
140 ldap_err2string(rc));
142 ldap_unbind_ext_s(st->ld, NULL, NULL);
145 DEBUG("openldap plugin: Successfully connected to %s", st->url);
149 } /* }}} static cldap_init_host */
151 static void cldap_submit_value(const char *type,
152 const char *type_instance, /* {{{ */
153 value_t value, cldap_t *st) {
154 value_list_t vl = VALUE_LIST_INIT;
159 if ((st->host != NULL) && (strcmp("localhost", st->host) != 0))
160 sstrncpy(vl.host, st->host, sizeof(vl.host));
162 sstrncpy(vl.plugin, "openldap", sizeof(vl.plugin));
163 if (st->name != NULL)
164 sstrncpy(vl.plugin_instance, st->name, sizeof(vl.plugin_instance));
166 sstrncpy(vl.type, type, sizeof(vl.type));
167 if (type_instance != NULL)
168 sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
170 plugin_dispatch_values(&vl);
171 } /* }}} void cldap_submit_value */
173 static void cldap_submit_derive(const char *type,
174 const char *type_instance, /* {{{ */
175 derive_t d, cldap_t *st) {
176 cldap_submit_value(type, type_instance, (value_t){.derive = d}, st);
177 } /* }}} void cldap_submit_derive */
179 static void cldap_submit_gauge(const char *type,
180 const char *type_instance, /* {{{ */
181 gauge_t g, cldap_t *st) {
182 cldap_submit_value(type, type_instance, (value_t){.gauge = g}, st);
183 } /* }}} void cldap_submit_gauge */
185 static int cldap_read_host(user_data_t *ud) /* {{{ */
194 "monitorCounter", "monitorOpCompleted", "monitorOpInitiated",
195 "monitoredInfo", "olmBDBEntryCache", "olmBDBDNCache",
196 "olmBDBIDLCache", "namingContexts", NULL};
198 if ((ud == NULL) || (ud->data == NULL)) {
199 ERROR("openldap plugin: cldap_read_host: Invalid user data.");
203 st = (cldap_t *)ud->data;
205 status = cldap_init_host(st);
209 rc = ldap_search_ext_s(st->ld, "cn=Monitor", LDAP_SCOPE_SUBTREE,
210 "(|(!(cn=* *))(cn=Database*))", attrs, 0, NULL, NULL,
213 if (rc != LDAP_SUCCESS) {
214 ERROR("openldap plugin: Failed to execute search: %s", ldap_err2string(rc));
215 ldap_msgfree(result);
217 ldap_unbind_ext_s(st->ld, NULL, NULL);
221 for (LDAPMessage *e = ldap_first_entry(st->ld, result); e != NULL;
222 e = ldap_next_entry(st->ld, e)) {
223 if ((dn = ldap_get_dn(st->ld, e)) != NULL) {
224 unsigned long long counter = 0;
225 unsigned long long opc = 0;
226 unsigned long long opi = 0;
227 unsigned long long info = 0;
229 struct berval counter_data;
230 struct berval opc_data;
231 struct berval opi_data;
232 struct berval info_data;
233 struct berval olmbdb_data;
234 struct berval nc_data;
236 struct berval **counter_list;
237 struct berval **opc_list;
238 struct berval **opi_list;
239 struct berval **info_list;
240 struct berval **olmbdb_list;
241 struct berval **nc_list;
243 if ((counter_list = ldap_get_values_len(st->ld, e, "monitorCounter")) !=
245 counter_data = *counter_list[0];
246 counter = atoll(counter_data.bv_val);
249 if ((opc_list = ldap_get_values_len(st->ld, e, "monitorOpCompleted")) !=
251 opc_data = *opc_list[0];
252 opc = atoll(opc_data.bv_val);
255 if ((opi_list = ldap_get_values_len(st->ld, e, "monitorOpInitiated")) !=
257 opi_data = *opi_list[0];
258 opi = atoll(opi_data.bv_val);
261 if ((info_list = ldap_get_values_len(st->ld, e, "monitoredInfo")) !=
263 info_data = *info_list[0];
264 info = atoll(info_data.bv_val);
267 if (strcmp(dn, "cn=Total,cn=Connections,cn=Monitor") == 0) {
268 cldap_submit_derive("total_connections", NULL, counter, st);
269 } else if (strcmp(dn, "cn=Current,cn=Connections,cn=Monitor") == 0) {
270 cldap_submit_gauge("current_connections", NULL, counter, st);
271 } else if (strcmp(dn, "cn=Operations,cn=Monitor") == 0) {
272 cldap_submit_derive("operations", "completed", opc, st);
273 cldap_submit_derive("operations", "initiated", opi, st);
274 } else if (strcmp(dn, "cn=Bind,cn=Operations,cn=Monitor") == 0) {
275 cldap_submit_derive("operations", "bind-completed", opc, st);
276 cldap_submit_derive("operations", "bind-initiated", opi, st);
277 } else if (strcmp(dn, "cn=UnBind,cn=Operations,cn=Monitor") == 0) {
278 cldap_submit_derive("operations", "unbind-completed", opc, st);
279 cldap_submit_derive("operations", "unbind-initiated", opi, st);
280 } else if (strcmp(dn, "cn=Search,cn=Operations,cn=Monitor") == 0) {
281 cldap_submit_derive("operations", "search-completed", opc, st);
282 cldap_submit_derive("operations", "search-initiated", opi, st);
283 } else if (strcmp(dn, "cn=Compare,cn=Operations,cn=Monitor") == 0) {
284 cldap_submit_derive("operations", "compare-completed", opc, st);
285 cldap_submit_derive("operations", "compare-initiated", opi, st);
286 } else if (strcmp(dn, "cn=Modify,cn=Operations,cn=Monitor") == 0) {
287 cldap_submit_derive("operations", "modify-completed", opc, st);
288 cldap_submit_derive("operations", "modify-initiated", opi, st);
289 } else if (strcmp(dn, "cn=Modrdn,cn=Operations,cn=Monitor") == 0) {
290 cldap_submit_derive("operations", "modrdn-completed", opc, st);
291 cldap_submit_derive("operations", "modrdn-initiated", opi, st);
292 } else if (strcmp(dn, "cn=Add,cn=Operations,cn=Monitor") == 0) {
293 cldap_submit_derive("operations", "add-completed", opc, st);
294 cldap_submit_derive("operations", "add-initiated", opi, st);
295 } else if (strcmp(dn, "cn=Delete,cn=Operations,cn=Monitor") == 0) {
296 cldap_submit_derive("operations", "delete-completed", opc, st);
297 cldap_submit_derive("operations", "delete-initiated", opi, st);
298 } else if (strcmp(dn, "cn=Abandon,cn=Operations,cn=Monitor") == 0) {
299 cldap_submit_derive("operations", "abandon-completed", opc, st);
300 cldap_submit_derive("operations", "abandon-initiated", opi, st);
301 } else if (strcmp(dn, "cn=Extended,cn=Operations,cn=Monitor") == 0) {
302 cldap_submit_derive("operations", "extended-completed", opc, st);
303 cldap_submit_derive("operations", "extended-initiated", opi, st);
304 } else if ((strncmp(dn, "cn=Database", 11) == 0) &&
305 ((nc_list = ldap_get_values_len(st->ld, e,
306 "namingContexts")) != NULL)) {
307 nc_data = *nc_list[0];
308 char typeinst[DATA_MAX_NAME_LEN];
311 ldap_get_values_len(st->ld, e, "olmBDBEntryCache")) != NULL) {
312 olmbdb_data = *olmbdb_list[0];
313 ssnprintf(typeinst, sizeof(typeinst), "bdbentrycache-%s",
315 cldap_submit_gauge("cache_size", typeinst, atoll(olmbdb_data.bv_val),
317 ldap_value_free_len(olmbdb_list);
320 if ((olmbdb_list = ldap_get_values_len(st->ld, e, "olmBDBDNCache")) !=
322 olmbdb_data = *olmbdb_list[0];
323 ssnprintf(typeinst, sizeof(typeinst), "bdbdncache-%s",
325 cldap_submit_gauge("cache_size", typeinst, atoll(olmbdb_data.bv_val),
327 ldap_value_free_len(olmbdb_list);
330 if ((olmbdb_list = ldap_get_values_len(st->ld, e, "olmBDBIDLCache")) !=
332 olmbdb_data = *olmbdb_list[0];
333 ssnprintf(typeinst, sizeof(typeinst), "bdbidlcache-%s",
335 cldap_submit_gauge("cache_size", typeinst, atoll(olmbdb_data.bv_val),
337 ldap_value_free_len(olmbdb_list);
340 ldap_value_free_len(nc_list);
341 } else if (strcmp(dn, "cn=Bytes,cn=Statistics,cn=Monitor") == 0) {
342 cldap_submit_derive("derive", "statistics-bytes", counter, st);
343 } else if (strcmp(dn, "cn=PDU,cn=Statistics,cn=Monitor") == 0) {
344 cldap_submit_derive("derive", "statistics-pdu", counter, st);
345 } else if (strcmp(dn, "cn=Entries,cn=Statistics,cn=Monitor") == 0) {
346 cldap_submit_derive("derive", "statistics-entries", counter, st);
347 } else if (strcmp(dn, "cn=Referrals,cn=Statistics,cn=Monitor") == 0) {
348 cldap_submit_derive("derive", "statistics-referrals", counter, st);
349 } else if (strcmp(dn, "cn=Open,cn=Threads,cn=Monitor") == 0) {
350 cldap_submit_gauge("threads", "threads-open", info, st);
351 } else if (strcmp(dn, "cn=Starting,cn=Threads,cn=Monitor") == 0) {
352 cldap_submit_gauge("threads", "threads-starting", info, st);
353 } else if (strcmp(dn, "cn=Active,cn=Threads,cn=Monitor") == 0) {
354 cldap_submit_gauge("threads", "threads-active", info, st);
355 } else if (strcmp(dn, "cn=Pending,cn=Threads,cn=Monitor") == 0) {
356 cldap_submit_gauge("threads", "threads-pending", info, st);
357 } else if (strcmp(dn, "cn=Backload,cn=Threads,cn=Monitor") == 0) {
358 cldap_submit_gauge("threads", "threads-backload", info, st);
359 } else if (strcmp(dn, "cn=Read,cn=Waiters,cn=Monitor") == 0) {
360 cldap_submit_derive("derive", "waiters-read", counter, st);
361 } else if (strcmp(dn, "cn=Write,cn=Waiters,cn=Monitor") == 0) {
362 cldap_submit_derive("derive", "waiters-write", counter, st);
365 ldap_value_free_len(counter_list);
366 ldap_value_free_len(opc_list);
367 ldap_value_free_len(opi_list);
368 ldap_value_free_len(info_list);
374 ldap_msgfree(result);
376 } /* }}} int cldap_read_host */
378 /* Configuration handling functions {{{
381 * <Instance "plugin_instance1">
382 * URL "ldap://localhost"
388 static int cldap_config_add(oconfig_item_t *ci) /* {{{ */
393 st = calloc(1, sizeof(*st));
395 ERROR("openldap plugin: calloc failed.");
399 status = cf_util_get_string(ci, &st->name);
406 st->timeout = (long)CDTIME_T_TO_TIME_T(plugin_get_interval());
408 st->version = LDAP_VERSION3;
410 for (int i = 0; i < ci->children_num; i++) {
411 oconfig_item_t *child = ci->children + i;
413 if (strcasecmp("BindDN", child->key) == 0)
414 status = cf_util_get_string(child, &st->binddn);
415 else if (strcasecmp("Password", child->key) == 0)
416 status = cf_util_get_string(child, &st->password);
417 else if (strcasecmp("CACert", child->key) == 0)
418 status = cf_util_get_string(child, &st->cacert);
419 else if (strcasecmp("StartTLS", child->key) == 0)
420 status = cf_util_get_boolean(child, &st->starttls);
421 else if (strcasecmp("Timeout", child->key) == 0)
422 status = cf_util_get_int(child, &st->timeout);
423 else if (strcasecmp("URL", child->key) == 0)
424 status = cf_util_get_string(child, &st->url);
425 else if (strcasecmp("VerifyHost", child->key) == 0)
426 status = cf_util_get_boolean(child, &st->verifyhost);
427 else if (strcasecmp("Version", child->key) == 0)
428 status = cf_util_get_int(child, &st->version);
430 WARNING("openldap plugin: Option `%s' not allowed here.", child->key);
438 /* Check if struct is complete.. */
439 if ((status == 0) && (st->url == NULL)) {
440 ERROR("openldap plugin: Instance `%s': "
441 "No URL has been configured.",
446 /* Check if URL is valid */
447 if ((status == 0) && (st->url != NULL)) {
450 if (ldap_url_parse(st->url, &ludpp) != 0) {
451 ERROR("openldap plugin: Instance `%s': "
457 if ((status == 0) && (ludpp->lud_host != NULL))
458 st->host = strdup(ludpp->lud_host);
460 ldap_free_urldesc(ludpp);
466 temp = (cldap_t **)realloc(databases,
467 sizeof(*databases) * (databases_num + 1));
470 ERROR("openldap plugin: realloc failed");
473 char callback_name[3 * DATA_MAX_NAME_LEN] = {0};
476 databases[databases_num] = st;
479 ssnprintf(callback_name, sizeof(callback_name), "openldap/%s/%s",
480 (st->host != NULL) ? st->host : hostname_g,
481 (st->name != NULL) ? st->name : "default");
483 status = plugin_register_complex_read(/* group = */ NULL,
484 /* name = */ callback_name,
485 /* callback = */ cldap_read_host,
486 /* interval = */ 0, &(user_data_t){
498 } /* }}} int cldap_config_add */
500 static int cldap_config(oconfig_item_t *ci) /* {{{ */
504 for (int i = 0; i < ci->children_num; i++) {
505 oconfig_item_t *child = ci->children + i;
507 if (strcasecmp("Instance", child->key) == 0)
508 cldap_config_add(child);
510 WARNING("openldap plugin: The configuration option "
511 "\"%s\" is not allowed here. Did you "
512 "forget to add an <Instance /> block "
513 "around the configuration?",
515 } /* for (ci->children) */
518 } /* }}} int cldap_config */
520 /* }}} End of configuration handling functions */
522 static int cldap_init(void) /* {{{ */
524 /* Initialize LDAP library while still single-threaded as recommended in
525 * ldap_initialize(3) */
527 ldap_get_option(NULL, LDAP_OPT_DEBUG_LEVEL, &debug_level);
529 } /* }}} int cldap_init */
531 static int cldap_shutdown(void) /* {{{ */
533 for (size_t i = 0; i < databases_num; i++)
534 if (databases[i]->ld != NULL)
535 ldap_unbind_ext_s(databases[i]->ld, NULL, NULL);
540 } /* }}} int cldap_shutdown */
542 void module_register(void) /* {{{ */
544 plugin_register_complex_config("openldap", cldap_config);
545 plugin_register_init("openldap", cldap_init);
546 plugin_register_shutdown("openldap", cldap_shutdown);
547 } /* }}} void module_register */
549 #if defined(__APPLE__)
550 #pragma clang diagnostic pop