2 Unix SMB/CIFS implementation.
3 LDAP protocol helper functions for SAMBA
4 Copyright (C) Jean François Micouleau 1998
5 Copyright (C) Gerald Carter 2001-2003
6 Copyright (C) Shahms King 2001
7 Copyright (C) Andrew Bartlett 2002-2003
8 Copyright (C) Stefan (metze) Metzmacher 2002-2003
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include "../libcli/security/security.h"
31 /* Try not to hit the up or down server forever */
33 #define SMBLDAP_DONT_PING_TIME 10 /* ping only all 10 seconds */
34 #define SMBLDAP_NUM_RETRIES 8 /* retry only 8 times */
36 #define SMBLDAP_IDLE_TIME 150 /* After 2.5 minutes disconnect */
39 /*******************************************************************
40 Search an attribute and return the first value found.
41 ******************************************************************/
43 bool smbldap_get_single_attribute (LDAP * ldap_struct, LDAPMessage * entry,
44 const char *attribute, char *value,
55 if ((values = ldap_get_values (ldap_struct, entry, attribute)) == NULL) {
56 DEBUG (10, ("smbldap_get_single_attribute: [%s] = [<does not exist>]\n", attribute));
61 if (!convert_string(CH_UTF8, CH_UNIX,values[0], -1, value, max_len, &size)) {
62 DEBUG(1, ("smbldap_get_single_attribute: string conversion of [%s] = [%s] failed!\n",
63 attribute, values[0]));
64 ldap_value_free(values);
68 ldap_value_free(values);
69 #ifdef DEBUG_PASSWORDS
70 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n", attribute, value));
75 char * smbldap_talloc_single_attribute(LDAP *ldap_struct, LDAPMessage *entry,
76 const char *attribute,
81 size_t converted_size;
83 if (attribute == NULL) {
87 values = ldap_get_values(ldap_struct, entry, attribute);
90 DEBUG(10, ("attribute %s does not exist\n", attribute));
94 if (ldap_count_values(values) != 1) {
95 DEBUG(10, ("attribute %s has %d values, expected only one\n",
96 attribute, ldap_count_values(values)));
97 ldap_value_free(values);
101 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
102 DEBUG(10, ("pull_utf8_talloc failed\n"));
103 ldap_value_free(values);
107 ldap_value_free(values);
109 #ifdef DEBUG_PASSWORDS
110 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n",
116 char * smbldap_talloc_first_attribute(LDAP *ldap_struct, LDAPMessage *entry,
117 const char *attribute,
122 size_t converted_size;
124 if (attribute == NULL) {
128 values = ldap_get_values(ldap_struct, entry, attribute);
130 if (values == NULL) {
131 DEBUG(10, ("attribute %s does not exist\n", attribute));
135 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
136 DEBUG(10, ("pull_utf8_talloc failed\n"));
137 ldap_value_free(values);
141 ldap_value_free(values);
143 #ifdef DEBUG_PASSWORDS
144 DEBUG (100, ("smbldap_get_first_attribute: [%s] = [%s]\n",
150 char * smbldap_talloc_smallest_attribute(LDAP *ldap_struct, LDAPMessage *entry,
151 const char *attribute,
156 size_t converted_size;
159 if (attribute == NULL) {
163 values = ldap_get_values(ldap_struct, entry, attribute);
165 if (values == NULL) {
166 DEBUG(10, ("attribute %s does not exist\n", attribute));
170 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
171 DEBUG(10, ("pull_utf8_talloc failed\n"));
172 ldap_value_free(values);
176 num_values = ldap_count_values(values);
178 for (i=1; i<num_values; i++) {
181 if (!pull_utf8_talloc(mem_ctx, &tmp, values[i],
183 DEBUG(10, ("pull_utf8_talloc failed\n"));
185 ldap_value_free(values);
189 if (strcasecmp_m(tmp, result) < 0) {
197 ldap_value_free(values);
199 #ifdef DEBUG_PASSWORDS
200 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n",
206 bool smbldap_talloc_single_blob(TALLOC_CTX *mem_ctx, LDAP *ld,
207 LDAPMessage *msg, const char *attrib,
210 struct berval **values;
212 values = ldap_get_values_len(ld, msg, attrib);
217 if (ldap_count_values_len(values) != 1) {
218 DEBUG(10, ("Expected one value for %s, got %d\n", attrib,
219 ldap_count_values_len(values)));
223 *blob = data_blob_talloc(mem_ctx, values[0]->bv_val,
225 ldap_value_free_len(values);
227 return (blob->data != NULL);
230 bool smbldap_pull_sid(LDAP *ld, LDAPMessage *msg, const char *attrib,
236 if (!smbldap_talloc_single_blob(talloc_tos(), ld, msg, attrib,
240 ret = sid_parse((char *)blob.data, blob.length, sid);
241 TALLOC_FREE(blob.data);
245 static int ldapmsg_destructor(LDAPMessage **result) {
246 ldap_msgfree(*result);
250 void talloc_autofree_ldapmsg(TALLOC_CTX *mem_ctx, LDAPMessage *result)
252 LDAPMessage **handle;
254 if (result == NULL) {
258 handle = talloc(mem_ctx, LDAPMessage *);
259 SMB_ASSERT(handle != NULL);
262 talloc_set_destructor(handle, ldapmsg_destructor);
265 static int ldapmod_destructor(LDAPMod ***mod) {
266 ldap_mods_free(*mod, True);
270 void talloc_autofree_ldapmod(TALLOC_CTX *mem_ctx, LDAPMod **mod)
278 handle = talloc(mem_ctx, LDAPMod **);
279 SMB_ASSERT(handle != NULL);
282 talloc_set_destructor(handle, ldapmod_destructor);
285 /************************************************************************
286 Routine to manage the LDAPMod structure array
287 manage memory used by the array, by each struct, and values
288 ***********************************************************************/
290 static void smbldap_set_mod_internal(LDAPMod *** modlist, int modop, const char *attribute, const char *value, const DATA_BLOB *blob)
298 /* sanity checks on the mod values */
300 if (attribute == NULL || *attribute == '\0') {
304 #if 0 /* commented out after discussion with abartlet. Do not reenable.
305 left here so other do not re-add similar code --jerry */
306 if (value == NULL || *value == '\0')
311 mods = SMB_MALLOC_P(LDAPMod *);
313 smb_panic("smbldap_set_mod: out of memory!");
319 for (i = 0; mods[i] != NULL; ++i) {
320 if (mods[i]->mod_op == modop && strequal(mods[i]->mod_type, attribute))
324 if (mods[i] == NULL) {
325 mods = SMB_REALLOC_ARRAY (mods, LDAPMod *, i + 2);
327 smb_panic("smbldap_set_mod: out of memory!");
330 mods[i] = SMB_MALLOC_P(LDAPMod);
331 if (mods[i] == NULL) {
332 smb_panic("smbldap_set_mod: out of memory!");
335 mods[i]->mod_op = modop;
336 mods[i]->mod_values = NULL;
337 mods[i]->mod_type = SMB_STRDUP(attribute);
341 if (blob && (modop & LDAP_MOD_BVALUES)) {
343 if (mods[i]->mod_bvalues != NULL) {
344 for (; mods[i]->mod_bvalues[j] != NULL; j++);
346 mods[i]->mod_bvalues = SMB_REALLOC_ARRAY(mods[i]->mod_bvalues, struct berval *, j + 2);
348 if (mods[i]->mod_bvalues == NULL) {
349 smb_panic("smbldap_set_mod: out of memory!");
353 mods[i]->mod_bvalues[j] = SMB_MALLOC_P(struct berval);
354 SMB_ASSERT(mods[i]->mod_bvalues[j] != NULL);
356 mods[i]->mod_bvalues[j]->bv_val = (char *)memdup(blob->data, blob->length);
357 SMB_ASSERT(mods[i]->mod_bvalues[j]->bv_val != NULL);
358 mods[i]->mod_bvalues[j]->bv_len = blob->length;
360 mods[i]->mod_bvalues[j + 1] = NULL;
361 } else if (value != NULL) {
362 char *utf8_value = NULL;
363 size_t converted_size;
366 if (mods[i]->mod_values != NULL) {
367 for (; mods[i]->mod_values[j] != NULL; j++);
369 mods[i]->mod_values = SMB_REALLOC_ARRAY(mods[i]->mod_values, char *, j + 2);
371 if (mods[i]->mod_values == NULL) {
372 smb_panic("smbldap_set_mod: out of memory!");
376 if (!push_utf8_talloc(talloc_tos(), &utf8_value, value, &converted_size)) {
377 smb_panic("smbldap_set_mod: String conversion failure!");
381 mods[i]->mod_values[j] = SMB_STRDUP(utf8_value);
382 TALLOC_FREE(utf8_value);
383 SMB_ASSERT(mods[i]->mod_values[j] != NULL);
385 mods[i]->mod_values[j + 1] = NULL;
390 void smbldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value)
392 smbldap_set_mod_internal(modlist, modop, attribute, value, NULL);
395 void smbldap_set_mod_blob(LDAPMod *** modlist, int modop, const char *attribute, const DATA_BLOB *value)
397 smbldap_set_mod_internal(modlist, modop | LDAP_MOD_BVALUES, attribute, NULL, value);
400 /**********************************************************************
401 Set attribute to newval in LDAP, regardless of what value the
402 attribute had in LDAP before.
403 *********************************************************************/
405 static void smbldap_make_mod_internal(LDAP *ldap_struct, LDAPMessage *existing,
407 const char *attribute, int op,
409 const DATA_BLOB *newblob)
411 char oldval[2048]; /* current largest allowed value is mungeddial */
413 DATA_BLOB oldblob = data_blob_null;
415 if (attribute == NULL) {
416 /* This can actually happen for ldapsam_compat where we for
417 * example don't have a password history */
421 if (existing != NULL) {
422 if (op & LDAP_MOD_BVALUES) {
423 existed = smbldap_talloc_single_blob(talloc_tos(), ldap_struct, existing, attribute, &oldblob);
425 existed = smbldap_get_single_attribute(ldap_struct, existing, attribute, oldval, sizeof(oldval));
434 if (op & LDAP_MOD_BVALUES) {
435 equal = (newblob && (data_blob_cmp(&oldblob, newblob) == 0));
437 /* all of our string attributes are case insensitive */
438 equal = (newval && (strcasecmp_m(oldval, newval) == 0));
442 /* Believe it or not, but LDAP will deny a delete and
443 an add at the same time if the values are the
445 DEBUG(10,("smbldap_make_mod: attribute |%s| not changed.\n", attribute));
449 /* There has been no value before, so don't delete it.
450 * Here's a possible race: We might end up with
451 * duplicate attributes */
452 /* By deleting exactly the value we found in the entry this
453 * should be race-free in the sense that the LDAP-Server will
454 * deny the complete operation if somebody changed the
455 * attribute behind our back. */
456 /* This will also allow modifying single valued attributes
457 * in Novell NDS. In NDS you have to first remove attribute and then
458 * you could add new value */
460 if (op & LDAP_MOD_BVALUES) {
461 DEBUG(10,("smbldap_make_mod: deleting attribute |%s| blob\n", attribute));
462 smbldap_set_mod_blob(mods, LDAP_MOD_DELETE, attribute, &oldblob);
464 DEBUG(10,("smbldap_make_mod: deleting attribute |%s| values |%s|\n", attribute, oldval));
465 smbldap_set_mod(mods, LDAP_MOD_DELETE, attribute, oldval);
469 /* Regardless of the real operation (add or modify)
470 we add the new value here. We rely on deleting
471 the old value, should it exist. */
473 if (op & LDAP_MOD_BVALUES) {
474 if (newblob && newblob->length) {
475 DEBUG(10,("smbldap_make_mod: adding attribute |%s| blob\n", attribute));
476 smbldap_set_mod_blob(mods, LDAP_MOD_ADD, attribute, newblob);
479 if ((newval != NULL) && (strlen(newval) > 0)) {
480 DEBUG(10,("smbldap_make_mod: adding attribute |%s| value |%s|\n", attribute, newval));
481 smbldap_set_mod(mods, LDAP_MOD_ADD, attribute, newval);
486 void smbldap_make_mod(LDAP *ldap_struct, LDAPMessage *existing,
488 const char *attribute, const char *newval)
490 smbldap_make_mod_internal(ldap_struct, existing, mods, attribute,
494 void smbldap_make_mod_blob(LDAP *ldap_struct, LDAPMessage *existing,
496 const char *attribute, const DATA_BLOB *newblob)
498 smbldap_make_mod_internal(ldap_struct, existing, mods, attribute,
499 LDAP_MOD_BVALUES, NULL, newblob);
502 /**********************************************************************
503 Some varients of the LDAP rebind code do not pass in the third 'arg'
504 pointer to a void*, so we try and work around it by assuming that the
505 value of the 'LDAP *' pointer is the same as the one we had passed in
506 **********************************************************************/
508 struct smbldap_state_lookup {
510 struct smbldap_state *smbldap_state;
511 struct smbldap_state_lookup *prev, *next;
514 static struct smbldap_state_lookup *smbldap_state_lookup_list;
516 static struct smbldap_state *smbldap_find_state(LDAP *ld)
518 struct smbldap_state_lookup *t;
520 for (t = smbldap_state_lookup_list; t; t = t->next) {
522 return t->smbldap_state;
528 static void smbldap_delete_state(struct smbldap_state *smbldap_state)
530 struct smbldap_state_lookup *t;
532 for (t = smbldap_state_lookup_list; t; t = t->next) {
533 if (t->smbldap_state == smbldap_state) {
534 DLIST_REMOVE(smbldap_state_lookup_list, t);
541 static void smbldap_store_state(LDAP *ld, struct smbldap_state *smbldap_state)
543 struct smbldap_state *tmp_ldap_state;
544 struct smbldap_state_lookup *t;
546 if ((tmp_ldap_state = smbldap_find_state(ld))) {
547 SMB_ASSERT(tmp_ldap_state == smbldap_state);
551 t = SMB_XMALLOC_P(struct smbldap_state_lookup);
554 DLIST_ADD_END(smbldap_state_lookup_list, t, struct smbldap_state_lookup *);
556 t->smbldap_state = smbldap_state;
559 /********************************************************************
560 start TLS on an existing LDAP connection
561 *******************************************************************/
563 int smb_ldap_start_tls(LDAP *ldap_struct, int version)
565 #ifdef LDAP_OPT_X_TLS
569 if (lp_ldap_ssl() != LDAP_SSL_START_TLS) {
573 #ifdef LDAP_OPT_X_TLS
574 if (version != LDAP_VERSION3) {
575 DEBUG(0, ("Need LDAPv3 for Start TLS\n"));
576 return LDAP_OPERATIONS_ERROR;
579 if ((rc = ldap_start_tls_s (ldap_struct, NULL, NULL)) != LDAP_SUCCESS) {
580 DEBUG(0,("Failed to issue the StartTLS instruction: %s\n",
581 ldap_err2string(rc)));
585 DEBUG (3, ("StartTLS issued: using a TLS connection\n"));
588 DEBUG(0,("StartTLS not supported by LDAP client libraries!\n"));
589 return LDAP_OPERATIONS_ERROR;
593 /********************************************************************
594 setup a connection to the LDAP server based on a uri
595 *******************************************************************/
597 static int smb_ldap_setup_conn(LDAP **ldap_struct, const char *uri)
601 DEBUG(10, ("smb_ldap_setup_connection: %s\n", uri));
603 #ifdef HAVE_LDAP_INITIALIZE
605 rc = ldap_initialize(ldap_struct, uri);
607 DEBUG(0, ("ldap_initialize: %s\n", ldap_err2string(rc)));
611 if (lp_ldap_follow_referral() != Auto) {
612 rc = ldap_set_option(*ldap_struct, LDAP_OPT_REFERRALS,
613 lp_ldap_follow_referral() ? LDAP_OPT_ON : LDAP_OPT_OFF);
614 if (rc != LDAP_SUCCESS)
615 DEBUG(0, ("Failed to set LDAP_OPT_REFERRALS: %s\n",
616 ldap_err2string(rc)));
622 /* Parse the string manually */
628 SMB_ASSERT(sizeof(protocol)>10 && sizeof(host)>254);
631 /* skip leading "URL:" (if any) */
632 if ( strnequal( uri, "URL:", 4 ) ) {
636 sscanf(uri, "%10[^:]://%254[^:/]:%d", protocol, host, &port);
639 if (strequal(protocol, "ldap")) {
641 } else if (strequal(protocol, "ldaps")) {
644 DEBUG(0, ("unrecognised protocol (%s)!\n", protocol));
648 if ((*ldap_struct = ldap_init(host, port)) == NULL) {
649 DEBUG(0, ("ldap_init failed !\n"));
650 return LDAP_OPERATIONS_ERROR;
653 if (strequal(protocol, "ldaps")) {
654 #ifdef LDAP_OPT_X_TLS
655 int tls = LDAP_OPT_X_TLS_HARD;
656 if (ldap_set_option (*ldap_struct, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS)
658 DEBUG(0, ("Failed to setup a TLS session\n"));
661 DEBUG(3,("LDAPS option set...!\n"));
663 DEBUG(0,("smbldap_open_connection: Secure connection not supported by LDAP client libraries!\n"));
664 return LDAP_OPERATIONS_ERROR;
665 #endif /* LDAP_OPT_X_TLS */
668 #endif /* HAVE_LDAP_INITIALIZE */
670 /* now set connection timeout */
671 #ifdef LDAP_X_OPT_CONNECT_TIMEOUT /* Netscape */
673 int ct = lp_ldap_connection_timeout()*1000;
674 rc = ldap_set_option(*ldap_struct, LDAP_X_OPT_CONNECT_TIMEOUT, &ct);
675 if (rc != LDAP_SUCCESS) {
676 DEBUG(0,("Failed to setup an ldap connection timeout %d: %s\n",
677 ct, ldap_err2string(rc)));
680 #elif defined (LDAP_OPT_NETWORK_TIMEOUT) /* OpenLDAP */
684 ct.tv_sec = lp_ldap_connection_timeout();
685 rc = ldap_set_option(*ldap_struct, LDAP_OPT_NETWORK_TIMEOUT, &ct);
686 if (rc != LDAP_SUCCESS) {
687 DEBUG(0,("Failed to setup an ldap connection timeout %d: %s\n",
688 (int)ct.tv_sec, ldap_err2string(rc)));
696 /********************************************************************
697 try to upgrade to Version 3 LDAP if not already, in either case return current
699 *******************************************************************/
701 static int smb_ldap_upgrade_conn(LDAP *ldap_struct, int *new_version)
706 /* assume the worst */
707 *new_version = LDAP_VERSION2;
709 rc = ldap_get_option(ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
714 if (version == LDAP_VERSION3) {
715 *new_version = LDAP_VERSION3;
720 version = LDAP_VERSION3;
721 rc = ldap_set_option (ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
726 *new_version = LDAP_VERSION3;
730 /*******************************************************************
731 open a connection to the ldap server (just until the bind)
732 ******************************************************************/
734 int smb_ldap_setup_full_conn(LDAP **ldap_struct, const char *uri)
738 rc = smb_ldap_setup_conn(ldap_struct, uri);
743 rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
748 rc = smb_ldap_start_tls(*ldap_struct, version);
756 /*******************************************************************
757 open a connection to the ldap server.
758 ******************************************************************/
759 static int smbldap_open_connection (struct smbldap_state *ldap_state)
762 int rc = LDAP_SUCCESS;
765 LDAP **ldap_struct = &ldap_state->ldap_struct;
767 rc = smb_ldap_setup_conn(ldap_struct, ldap_state->uri);
772 /* Store the LDAP pointer in a lookup list */
774 smbldap_store_state(*ldap_struct, ldap_state);
776 /* Upgrade to LDAPv3 if possible */
778 rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
783 /* Start TLS if required */
785 rc = smb_ldap_start_tls(*ldap_struct, version);
790 /* Set alias dereferencing method */
791 deref = lp_ldap_deref();
793 if (ldap_set_option (*ldap_struct, LDAP_OPT_DEREF, &deref) != LDAP_OPT_SUCCESS) {
794 DEBUG(1,("smbldap_open_connection: Failed to set dereferencing method: %d\n", deref));
796 DEBUG(5,("Set dereferencing method: %d\n", deref));
800 DEBUG(2, ("smbldap_open_connection: connection opened\n"));
804 /*******************************************************************
805 a rebind function for authenticated referrals
806 This version takes a void* that we can shove useful stuff in :-)
807 ******************************************************************/
808 #if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
810 static int rebindproc_with_state (LDAP * ld, char **whop, char **credp,
811 int *methodp, int freeit, void *arg)
813 struct smbldap_state *ldap_state = arg;
816 /** @TODO Should we be doing something to check what servers we rebind to?
817 Could we get a referral to a machine that we don't want to give our
818 username and password to? */
823 memset(*credp, '\0', strlen(*credp));
827 DEBUG(5,("rebind_proc_with_state: Rebinding as \"%s\"\n",
828 ldap_state->bind_dn?ldap_state->bind_dn:"[Anonymous bind]"));
830 if (ldap_state->anonymous) {
834 *whop = SMB_STRDUP(ldap_state->bind_dn);
836 return LDAP_NO_MEMORY;
838 *credp = SMB_STRDUP(ldap_state->bind_secret);
841 return LDAP_NO_MEMORY;
844 *methodp = LDAP_AUTH_SIMPLE;
847 clock_gettime_mono(&ts);
848 ldap_state->last_rebind = convert_timespec_to_timeval(ts);
852 #endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
854 /*******************************************************************
855 a rebind function for authenticated referrals
856 This version takes a void* that we can shove useful stuff in :-)
857 and actually does the connection.
858 ******************************************************************/
859 #if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
860 static int rebindproc_connect_with_state (LDAP *ldap_struct,
861 LDAP_CONST char *url,
863 ber_int_t msgid, void *arg)
865 struct smbldap_state *ldap_state =
866 (struct smbldap_state *)arg;
871 DEBUG(5,("rebindproc_connect_with_state: Rebinding to %s as \"%s\"\n",
872 url, ldap_state->bind_dn?ldap_state->bind_dn:"[Anonymous bind]"));
874 /* call START_TLS again (ldaps:// is handled by the OpenLDAP library
875 * itself) before rebinding to another LDAP server to avoid to expose
876 * our credentials. At least *try* to secure the connection - Guenther */
878 smb_ldap_upgrade_conn(ldap_struct, &version);
879 smb_ldap_start_tls(ldap_struct, version);
881 /** @TODO Should we be doing something to check what servers we rebind to?
882 Could we get a referral to a machine that we don't want to give our
883 username and password to? */
885 rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
887 /* only set the last rebind timestamp when we did rebind after a
888 * non-read LDAP operation. That way we avoid the replication sleep
889 * after a simple redirected search operation - Guenther */
893 case LDAP_REQ_MODIFY:
895 case LDAP_REQ_DELETE:
897 case LDAP_REQ_EXTENDED:
898 DEBUG(10,("rebindproc_connect_with_state: "
899 "setting last_rebind timestamp "
900 "(req: 0x%02x)\n", (unsigned int)request));
901 clock_gettime_mono(&ts);
902 ldap_state->last_rebind = convert_timespec_to_timeval(ts);
905 ZERO_STRUCT(ldap_state->last_rebind);
911 #endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
913 /*******************************************************************
914 Add a rebind function for authenticated referrals
915 ******************************************************************/
916 #if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
918 # if LDAP_SET_REBIND_PROC_ARGS == 2
919 static int rebindproc (LDAP *ldap_struct, char **whop, char **credp,
920 int *method, int freeit )
922 struct smbldap_state *ldap_state = smbldap_find_state(ldap_struct);
924 return rebindproc_with_state(ldap_struct, whop, credp,
925 method, freeit, ldap_state);
927 # endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
928 #endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
930 /*******************************************************************
931 a rebind function for authenticated referrals
932 this also does the connection, but no void*.
933 ******************************************************************/
934 #if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
935 # if LDAP_SET_REBIND_PROC_ARGS == 2
936 static int rebindproc_connect (LDAP * ld, LDAP_CONST char *url, int request,
939 struct smbldap_state *ldap_state = smbldap_find_state(ld);
941 return rebindproc_connect_with_state(ld, url, (ber_tag_t)request, msgid,
944 # endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
945 #endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
947 /*******************************************************************
948 connect to the ldap server under system privilege.
949 ******************************************************************/
950 static int smbldap_connect_system(struct smbldap_state *ldap_state)
952 LDAP *ldap_struct = ldap_state->ldap_struct;
956 if (!ldap_state->anonymous && !ldap_state->bind_dn) {
957 char *bind_dn = NULL;
958 char *bind_secret = NULL;
960 /* get the default dn and password only if they are not set already */
961 if (!fetch_ldap_pw(&bind_dn, &bind_secret)) {
962 DEBUG(0, ("ldap_connect_system: Failed to retrieve password from secrets.tdb\n"));
963 rc = LDAP_INVALID_CREDENTIALS;
966 smbldap_set_creds(ldap_state, false, bind_dn, bind_secret);
968 memset(bind_secret, '\0', strlen(bind_secret));
969 SAFE_FREE(bind_secret);
972 /* removed the sasl_bind_s "EXTERNAL" stuff, as my testsuite
973 (OpenLDAP) doesnt' seem to support it */
975 DEBUG(10,("ldap_connect_system: Binding to ldap server %s as \"%s\"\n",
976 ldap_state->uri, ldap_state->bind_dn));
978 #ifdef HAVE_LDAP_SET_REBIND_PROC
979 #if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
980 # if LDAP_SET_REBIND_PROC_ARGS == 2
981 ldap_set_rebind_proc(ldap_struct, &rebindproc_connect);
983 # if LDAP_SET_REBIND_PROC_ARGS == 3
984 ldap_set_rebind_proc(ldap_struct, &rebindproc_connect_with_state, (void *)ldap_state);
986 #else /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
987 # if LDAP_SET_REBIND_PROC_ARGS == 2
988 ldap_set_rebind_proc(ldap_struct, &rebindproc);
990 # if LDAP_SET_REBIND_PROC_ARGS == 3
991 ldap_set_rebind_proc(ldap_struct, &rebindproc_with_state, (void *)ldap_state);
993 #endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
996 rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
998 if (rc != LDAP_SUCCESS) {
999 char *ld_error = NULL;
1000 ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1002 DEBUG(ldap_state->num_failures ? 2 : 0,
1003 ("failed to bind to server %s with dn=\"%s\" Error: %s\n\t%s\n",
1005 ldap_state->bind_dn ? ldap_state->bind_dn : "[Anonymous bind]",
1006 ldap_err2string(rc),
1007 ld_error ? ld_error : "(unknown)"));
1008 SAFE_FREE(ld_error);
1009 ldap_state->num_failures++;
1013 ldap_state->num_failures = 0;
1014 ldap_state->paged_results = False;
1016 ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
1018 if (smbldap_has_control(ldap_state->ldap_struct, ADS_PAGE_CTL_OID) && version == 3) {
1019 ldap_state->paged_results = True;
1022 DEBUG(3, ("ldap_connect_system: successful connection to the LDAP server\n"));
1023 DEBUGADD(10, ("ldap_connect_system: LDAP server %s support paged results\n",
1024 ldap_state->paged_results ? "does" : "does not"));
1027 ldap_unbind(ldap_struct);
1028 ldap_state->ldap_struct = NULL;
1033 static void smbldap_idle_fn(struct tevent_context *tevent_ctx,
1034 struct timed_event *te,
1035 struct timeval now_abs,
1036 void *private_data);
1038 /**********************************************************************
1039 Connect to LDAP server (called before every ldap operation)
1040 *********************************************************************/
1041 static int smbldap_open(struct smbldap_state *ldap_state)
1044 bool reopen = False;
1045 SMB_ASSERT(ldap_state);
1047 if ((ldap_state->ldap_struct != NULL) && ((ldap_state->last_ping + SMBLDAP_DONT_PING_TIME) < time_mono(NULL))) {
1049 #ifdef HAVE_UNIXSOCKET
1050 struct sockaddr_un addr;
1052 struct sockaddr addr;
1054 socklen_t len = sizeof(addr);
1057 opt_rc = ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_DESC, &sd);
1058 if (opt_rc == 0 && (getpeername(sd, (struct sockaddr *) &addr, &len)) < 0 )
1061 #ifdef HAVE_UNIXSOCKET
1062 if (opt_rc == 0 && addr.sun_family == AF_UNIX)
1066 /* the other end has died. reopen. */
1067 ldap_unbind(ldap_state->ldap_struct);
1068 ldap_state->ldap_struct = NULL;
1069 ldap_state->last_ping = (time_t)0;
1071 ldap_state->last_ping = time_mono(NULL);
1075 if (ldap_state->ldap_struct != NULL) {
1076 DEBUG(11,("smbldap_open: already connected to the LDAP server\n"));
1077 return LDAP_SUCCESS;
1080 if ((rc = smbldap_open_connection(ldap_state))) {
1084 if ((rc = smbldap_connect_system(ldap_state))) {
1089 ldap_state->last_ping = time_mono(NULL);
1090 ldap_state->pid = sys_getpid();
1092 TALLOC_FREE(ldap_state->idle_event);
1094 if (ldap_state->tevent_context != NULL) {
1095 ldap_state->idle_event = tevent_add_timer(
1096 ldap_state->tevent_context, ldap_state,
1097 timeval_current_ofs(SMBLDAP_IDLE_TIME, 0),
1098 smbldap_idle_fn, ldap_state);
1101 DEBUG(4,("The LDAP server is successfully connected\n"));
1103 return LDAP_SUCCESS;
1106 /**********************************************************************
1107 Disconnect from LDAP server
1108 *********************************************************************/
1109 static NTSTATUS smbldap_close(struct smbldap_state *ldap_state)
1112 return NT_STATUS_INVALID_PARAMETER;
1114 if (ldap_state->ldap_struct != NULL) {
1115 ldap_unbind(ldap_state->ldap_struct);
1116 ldap_state->ldap_struct = NULL;
1119 smbldap_delete_state(ldap_state);
1121 TALLOC_FREE(ldap_state->idle_event);
1123 DEBUG(5,("The connection to the LDAP server was closed\n"));
1124 /* maybe free the results here --metze */
1126 return NT_STATUS_OK;
1129 static SIG_ATOMIC_T got_alarm;
1131 static void gotalarm_sig(int dummy)
1136 static time_t calc_ldap_abs_endtime(int ldap_to)
1139 /* No timeout - don't
1145 /* Make the alarm time one second beyond
1146 the timout we're setting for the
1147 remote search timeout, to allow that
1148 to fire in preference. */
1150 return time_mono(NULL)+ldap_to+1;
1153 static int end_ldap_local_alarm(time_t absolute_endtime, int rc)
1155 if (absolute_endtime) {
1157 CatchSignal(SIGALRM, SIG_IGN);
1159 /* Client timeout error code. */
1161 return LDAP_TIMEOUT;
1167 static void setup_ldap_local_alarm(struct smbldap_state *ldap_state, time_t absolute_endtime)
1169 time_t now = time_mono(NULL);
1171 if (absolute_endtime) {
1173 CatchSignal(SIGALRM, gotalarm_sig);
1174 alarm(absolute_endtime - now);
1177 if (ldap_state->pid != sys_getpid()) {
1178 smbldap_close(ldap_state);
1182 static void get_ldap_errs(struct smbldap_state *ldap_state, char **pp_ld_error, int *p_ld_errno)
1184 ldap_get_option(ldap_state->ldap_struct,
1185 LDAP_OPT_ERROR_NUMBER, p_ld_errno);
1187 ldap_get_option(ldap_state->ldap_struct,
1188 LDAP_OPT_ERROR_STRING, pp_ld_error);
1191 static int get_cached_ldap_connect(struct smbldap_state *ldap_state, time_t abs_endtime)
1199 now = time_mono(NULL);
1200 ldap_state->last_use = now;
1202 if (abs_endtime && now > abs_endtime) {
1203 smbldap_close(ldap_state);
1204 return LDAP_TIMEOUT;
1207 rc = smbldap_open(ldap_state);
1209 if (rc == LDAP_SUCCESS) {
1210 return LDAP_SUCCESS;
1214 DEBUG(1, ("Connection to LDAP server failed for the "
1215 "%d try!\n", attempts));
1217 if (rc == LDAP_INSUFFICIENT_ACCESS) {
1218 /* The fact that we are non-root or any other
1219 * access-denied condition will not change in the next
1220 * round of trying */
1225 smbldap_close(ldap_state);
1226 return LDAP_TIMEOUT;
1232 smbldap_close(ldap_state);
1233 return LDAP_TIMEOUT;
1238 /*********************************************************************
1239 ********************************************************************/
1241 static int smbldap_search_ext(struct smbldap_state *ldap_state,
1242 const char *base, int scope, const char *filter,
1243 const char *attrs[], int attrsonly,
1244 LDAPControl **sctrls, LDAPControl **cctrls,
1245 int sizelimit, LDAPMessage **res)
1247 int rc = LDAP_SERVER_DOWN;
1249 int to = lp_ldap_timeout();
1250 time_t abs_endtime = calc_ldap_abs_endtime(to);
1251 struct timeval timeout;
1252 struct timeval *timeout_ptr = NULL;
1253 size_t converted_size;
1255 SMB_ASSERT(ldap_state);
1257 DEBUG(5,("smbldap_search_ext: base => [%s], filter => [%s], "
1258 "scope => [%d]\n", base, filter, scope));
1260 if (ldap_state->last_rebind.tv_sec > 0) {
1261 struct timeval tval;
1266 clock_gettime_mono(&ts);
1267 tval = convert_timespec_to_timeval(ts);
1269 tdiff = usec_time_diff(&tval, &ldap_state->last_rebind);
1270 tdiff /= 1000; /* Convert to milliseconds. */
1272 sleep_time = lp_ldap_replication_sleep()-(int)tdiff;
1273 sleep_time = MIN(sleep_time, MAX_LDAP_REPLICATION_SLEEP_TIME);
1275 if (sleep_time > 0) {
1276 /* we wait for the LDAP replication */
1277 DEBUG(5,("smbldap_search_ext: waiting %d milliseconds "
1278 "for LDAP replication.\n",sleep_time));
1279 smb_msleep(sleep_time);
1280 DEBUG(5,("smbldap_search_ext: go on!\n"));
1282 ZERO_STRUCT(ldap_state->last_rebind);
1285 if (!push_utf8_talloc(talloc_tos(), &utf8_filter, filter, &converted_size)) {
1286 return LDAP_NO_MEMORY;
1289 /* Setup remote timeout for the ldap_search_ext_s call. */
1291 timeout.tv_sec = to;
1292 timeout.tv_usec = 0;
1293 timeout_ptr = &timeout;
1296 setup_ldap_local_alarm(ldap_state, abs_endtime);
1299 char *ld_error = NULL;
1302 rc = get_cached_ldap_connect(ldap_state, abs_endtime);
1303 if (rc != LDAP_SUCCESS) {
1307 rc = ldap_search_ext_s(ldap_state->ldap_struct, base, scope,
1309 discard_const_p(char *, attrs),
1310 attrsonly, sctrls, cctrls, timeout_ptr,
1312 if (rc == LDAP_SUCCESS) {
1316 get_ldap_errs(ldap_state, &ld_error, &ld_errno);
1318 DEBUG(10, ("Failed search for base: %s, error: %d (%s) "
1319 "(%s)\n", base, ld_errno,
1320 ldap_err2string(rc),
1321 ld_error ? ld_error : "unknown"));
1322 SAFE_FREE(ld_error);
1324 if (ld_errno != LDAP_SERVER_DOWN) {
1327 ldap_unbind(ldap_state->ldap_struct);
1328 ldap_state->ldap_struct = NULL;
1331 TALLOC_FREE(utf8_filter);
1332 return end_ldap_local_alarm(abs_endtime, rc);
1335 int smbldap_search(struct smbldap_state *ldap_state,
1336 const char *base, int scope, const char *filter,
1337 const char *attrs[], int attrsonly,
1340 return smbldap_search_ext(ldap_state, base, scope, filter, attrs,
1341 attrsonly, NULL, NULL, LDAP_NO_LIMIT, res);
1344 int smbldap_search_paged(struct smbldap_state *ldap_state,
1345 const char *base, int scope, const char *filter,
1346 const char **attrs, int attrsonly, int pagesize,
1347 LDAPMessage **res, void **cookie)
1350 LDAPControl **rcontrols;
1351 LDAPControl *controls[2] = { NULL, NULL};
1352 BerElement *cookie_be = NULL;
1353 struct berval *cookie_bv = NULL;
1355 bool critical = True;
1359 DEBUG(3,("smbldap_search_paged: base => [%s], filter => [%s],"
1360 "scope => [%d], pagesize => [%d]\n",
1361 base, filter, scope, pagesize));
1363 cookie_be = ber_alloc_t(LBER_USE_DER);
1364 if (cookie_be == NULL) {
1365 DEBUG(0,("smbldap_create_page_control: ber_alloc_t returns "
1367 return LDAP_NO_MEMORY;
1370 /* construct cookie */
1371 if (*cookie != NULL) {
1372 ber_printf(cookie_be, "{iO}", (ber_int_t) pagesize, *cookie);
1373 ber_bvfree((struct berval *)*cookie); /* don't need it from last time */
1376 ber_printf(cookie_be, "{io}", (ber_int_t) pagesize, "", 0);
1378 ber_flatten(cookie_be, &cookie_bv);
1380 pr.ldctl_oid = discard_const_p(char, ADS_PAGE_CTL_OID);
1381 pr.ldctl_iscritical = (char) critical;
1382 pr.ldctl_value.bv_len = cookie_bv->bv_len;
1383 pr.ldctl_value.bv_val = cookie_bv->bv_val;
1388 rc = smbldap_search_ext(ldap_state, base, scope, filter, attrs,
1389 0, controls, NULL, LDAP_NO_LIMIT, res);
1391 ber_free(cookie_be, 1);
1392 ber_bvfree(cookie_bv);
1395 DEBUG(3,("smbldap_search_paged: smbldap_search_ext(%s) "
1396 "failed with [%s]\n", filter, ldap_err2string(rc)));
1400 DEBUG(3,("smbldap_search_paged: search was successful\n"));
1402 rc = ldap_parse_result(ldap_state->ldap_struct, *res, NULL, NULL,
1403 NULL, NULL, &rcontrols, 0);
1405 DEBUG(3,("smbldap_search_paged: ldap_parse_result failed " \
1406 "with [%s]\n", ldap_err2string(rc)));
1410 if (rcontrols == NULL)
1413 for (i=0; rcontrols[i]; i++) {
1415 if (strcmp(ADS_PAGE_CTL_OID, rcontrols[i]->ldctl_oid) != 0)
1418 cookie_be = ber_init(&rcontrols[i]->ldctl_value);
1419 ber_scanf(cookie_be,"{iO}", &tmp, &cookie_bv);
1420 /* the berval is the cookie, but must be freed when it is all
1422 if (cookie_bv->bv_len)
1423 *cookie=ber_bvdup(cookie_bv);
1426 ber_bvfree(cookie_bv);
1427 ber_free(cookie_be, 1);
1430 ldap_controls_free(rcontrols);
1435 int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
1437 int rc = LDAP_SERVER_DOWN;
1439 time_t abs_endtime = calc_ldap_abs_endtime(lp_ldap_timeout());
1440 size_t converted_size;
1442 SMB_ASSERT(ldap_state);
1444 DEBUG(5,("smbldap_modify: dn => [%s]\n", dn ));
1446 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1447 return LDAP_NO_MEMORY;
1450 setup_ldap_local_alarm(ldap_state, abs_endtime);
1453 char *ld_error = NULL;
1456 rc = get_cached_ldap_connect(ldap_state, abs_endtime);
1457 if (rc != LDAP_SUCCESS) {
1461 rc = ldap_modify_s(ldap_state->ldap_struct, utf8_dn, attrs);
1462 if (rc == LDAP_SUCCESS) {
1466 get_ldap_errs(ldap_state, &ld_error, &ld_errno);
1468 DEBUG(10, ("Failed to modify dn: %s, error: %d (%s) "
1469 "(%s)\n", dn, ld_errno,
1470 ldap_err2string(rc),
1471 ld_error ? ld_error : "unknown"));
1472 SAFE_FREE(ld_error);
1474 if (ld_errno != LDAP_SERVER_DOWN) {
1477 ldap_unbind(ldap_state->ldap_struct);
1478 ldap_state->ldap_struct = NULL;
1481 TALLOC_FREE(utf8_dn);
1482 return end_ldap_local_alarm(abs_endtime, rc);
1485 int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
1487 int rc = LDAP_SERVER_DOWN;
1489 time_t abs_endtime = calc_ldap_abs_endtime(lp_ldap_timeout());
1490 size_t converted_size;
1492 SMB_ASSERT(ldap_state);
1494 DEBUG(5,("smbldap_add: dn => [%s]\n", dn ));
1496 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1497 return LDAP_NO_MEMORY;
1500 setup_ldap_local_alarm(ldap_state, abs_endtime);
1503 char *ld_error = NULL;
1506 rc = get_cached_ldap_connect(ldap_state, abs_endtime);
1507 if (rc != LDAP_SUCCESS) {
1511 rc = ldap_add_s(ldap_state->ldap_struct, utf8_dn, attrs);
1512 if (rc == LDAP_SUCCESS) {
1516 get_ldap_errs(ldap_state, &ld_error, &ld_errno);
1518 DEBUG(10, ("Failed to add dn: %s, error: %d (%s) "
1519 "(%s)\n", dn, ld_errno,
1520 ldap_err2string(rc),
1521 ld_error ? ld_error : "unknown"));
1522 SAFE_FREE(ld_error);
1524 if (ld_errno != LDAP_SERVER_DOWN) {
1527 ldap_unbind(ldap_state->ldap_struct);
1528 ldap_state->ldap_struct = NULL;
1531 TALLOC_FREE(utf8_dn);
1532 return end_ldap_local_alarm(abs_endtime, rc);
1535 int smbldap_delete(struct smbldap_state *ldap_state, const char *dn)
1537 int rc = LDAP_SERVER_DOWN;
1539 time_t abs_endtime = calc_ldap_abs_endtime(lp_ldap_timeout());
1540 size_t converted_size;
1542 SMB_ASSERT(ldap_state);
1544 DEBUG(5,("smbldap_delete: dn => [%s]\n", dn ));
1546 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1547 return LDAP_NO_MEMORY;
1550 setup_ldap_local_alarm(ldap_state, abs_endtime);
1553 char *ld_error = NULL;
1556 rc = get_cached_ldap_connect(ldap_state, abs_endtime);
1557 if (rc != LDAP_SUCCESS) {
1561 rc = ldap_delete_s(ldap_state->ldap_struct, utf8_dn);
1562 if (rc == LDAP_SUCCESS) {
1566 get_ldap_errs(ldap_state, &ld_error, &ld_errno);
1568 DEBUG(10, ("Failed to delete dn: %s, error: %d (%s) "
1569 "(%s)\n", dn, ld_errno,
1570 ldap_err2string(rc),
1571 ld_error ? ld_error : "unknown"));
1572 SAFE_FREE(ld_error);
1574 if (ld_errno != LDAP_SERVER_DOWN) {
1577 ldap_unbind(ldap_state->ldap_struct);
1578 ldap_state->ldap_struct = NULL;
1581 TALLOC_FREE(utf8_dn);
1582 return end_ldap_local_alarm(abs_endtime, rc);
1585 int smbldap_extended_operation(struct smbldap_state *ldap_state,
1586 LDAP_CONST char *reqoid, struct berval *reqdata,
1587 LDAPControl **serverctrls, LDAPControl **clientctrls,
1588 char **retoidp, struct berval **retdatap)
1590 int rc = LDAP_SERVER_DOWN;
1591 time_t abs_endtime = calc_ldap_abs_endtime(lp_ldap_timeout());
1596 setup_ldap_local_alarm(ldap_state, abs_endtime);
1599 char *ld_error = NULL;
1602 rc = get_cached_ldap_connect(ldap_state, abs_endtime);
1603 if (rc != LDAP_SUCCESS) {
1607 rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid,
1608 reqdata, serverctrls,
1609 clientctrls, retoidp, retdatap);
1610 if (rc == LDAP_SUCCESS) {
1614 get_ldap_errs(ldap_state, &ld_error, &ld_errno);
1616 DEBUG(10, ("Extended operation failed with error: "
1617 "%d (%s) (%s)\n", ld_errno,
1618 ldap_err2string(rc),
1619 ld_error ? ld_error : "unknown"));
1620 SAFE_FREE(ld_error);
1622 if (ld_errno != LDAP_SERVER_DOWN) {
1625 ldap_unbind(ldap_state->ldap_struct);
1626 ldap_state->ldap_struct = NULL;
1629 return end_ldap_local_alarm(abs_endtime, rc);
1632 /*******************************************************************
1633 run the search by name.
1634 ******************************************************************/
1635 int smbldap_search_suffix (struct smbldap_state *ldap_state,
1636 const char *filter, const char **search_attr,
1637 LDAPMessage ** result)
1639 return smbldap_search(ldap_state, lp_ldap_suffix(), LDAP_SCOPE_SUBTREE,
1640 filter, search_attr, 0, result);
1643 static void smbldap_idle_fn(struct tevent_context *tevent_ctx,
1644 struct timed_event *te,
1645 struct timeval now_abs,
1648 struct smbldap_state *state = (struct smbldap_state *)private_data;
1650 TALLOC_FREE(state->idle_event);
1652 if (state->ldap_struct == NULL) {
1653 DEBUG(10,("ldap connection not connected...\n"));
1657 if ((state->last_use+SMBLDAP_IDLE_TIME) > time_mono(NULL)) {
1658 DEBUG(10,("ldap connection not idle...\n"));
1660 /* this needs to be made monotonic clock aware inside tevent: */
1661 state->idle_event = tevent_add_timer(
1663 timeval_add(&now_abs, SMBLDAP_IDLE_TIME, 0),
1669 DEBUG(7,("ldap connection idle...closing connection\n"));
1670 smbldap_close(state);
1673 /**********************************************************************
1675 *********************************************************************/
1677 void smbldap_free_struct(struct smbldap_state **ldap_state)
1679 smbldap_close(*ldap_state);
1681 if ((*ldap_state)->bind_secret) {
1682 memset((*ldap_state)->bind_secret, '\0', strlen((*ldap_state)->bind_secret));
1685 SAFE_FREE((*ldap_state)->bind_dn);
1686 SAFE_FREE((*ldap_state)->bind_secret);
1688 TALLOC_FREE(*ldap_state);
1690 /* No need to free any further, as it is talloc()ed */
1693 static int smbldap_state_destructor(struct smbldap_state *state)
1695 smbldap_free_struct(&state);
1700 /**********************************************************************
1701 Intitalise the 'general' ldap structures, on which ldap operations may be conducted
1702 *********************************************************************/
1704 NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, struct tevent_context *tevent_ctx,
1705 const char *location,
1706 struct smbldap_state **smbldap_state)
1708 *smbldap_state = talloc_zero(mem_ctx, struct smbldap_state);
1709 if (!*smbldap_state) {
1710 DEBUG(0, ("talloc() failed for ldapsam private_data!\n"));
1711 return NT_STATUS_NO_MEMORY;
1715 (*smbldap_state)->uri = talloc_strdup(mem_ctx, location);
1717 (*smbldap_state)->uri = "ldap://localhost";
1720 (*smbldap_state)->tevent_context = tevent_ctx;
1722 talloc_set_destructor(*smbldap_state, smbldap_state_destructor);
1723 return NT_STATUS_OK;
1726 char *smbldap_talloc_dn(TALLOC_CTX *mem_ctx, LDAP *ld,
1729 char *utf8_dn, *unix_dn;
1730 size_t converted_size;
1732 utf8_dn = ldap_get_dn(ld, entry);
1734 DEBUG (5, ("smbldap_talloc_dn: ldap_get_dn failed\n"));
1737 if (!pull_utf8_talloc(mem_ctx, &unix_dn, utf8_dn, &converted_size)) {
1738 DEBUG (0, ("smbldap_talloc_dn: String conversion failure utf8 "
1739 "[%s]\n", utf8_dn));
1742 ldap_memfree(utf8_dn);
1746 /*******************************************************************
1747 Check if root-dse has a certain Control or Extension
1748 ********************************************************************/
1750 static bool smbldap_check_root_dse(LDAP *ld, const char **attrs, const char *value)
1752 LDAPMessage *msg = NULL;
1753 LDAPMessage *entry = NULL;
1754 char **values = NULL;
1755 int rc, num_result, num_values, i;
1756 bool result = False;
1759 DEBUG(3,("smbldap_check_root_dse: nothing to look for\n"));
1763 if (!strequal(attrs[0], "supportedExtension") &&
1764 !strequal(attrs[0], "supportedControl") &&
1765 !strequal(attrs[0], "namingContexts")) {
1766 DEBUG(3,("smbldap_check_root_dse: no idea what to query root-dse for: %s ?\n", attrs[0]));
1770 rc = ldap_search_s(ld, "", LDAP_SCOPE_BASE,
1771 "(objectclass=*)", discard_const_p(char *, attrs), 0 , &msg);
1773 if (rc != LDAP_SUCCESS) {
1774 DEBUG(3,("smbldap_check_root_dse: Could not search rootDSE\n"));
1778 num_result = ldap_count_entries(ld, msg);
1780 if (num_result != 1) {
1781 DEBUG(3,("smbldap_check_root_dse: Expected one rootDSE, got %d\n", num_result));
1785 entry = ldap_first_entry(ld, msg);
1787 if (entry == NULL) {
1788 DEBUG(3,("smbldap_check_root_dse: Could not retrieve rootDSE\n"));
1792 values = ldap_get_values(ld, entry, attrs[0]);
1794 if (values == NULL) {
1795 DEBUG(5,("smbldap_check_root_dse: LDAP Server does not support any %s\n", attrs[0]));
1799 num_values = ldap_count_values(values);
1801 if (num_values == 0) {
1802 DEBUG(5,("smbldap_check_root_dse: LDAP Server does not have any %s\n", attrs[0]));
1806 for (i=0; i<num_values; i++) {
1807 if (strcmp(values[i], value) == 0)
1814 ldap_value_free(values);
1822 /*******************************************************************
1823 Check if LDAP-Server supports a certain Control (OID in string format)
1824 ********************************************************************/
1826 bool smbldap_has_control(LDAP *ld, const char *control)
1828 const char *attrs[] = { "supportedControl", NULL };
1829 return smbldap_check_root_dse(ld, attrs, control);
1832 /*******************************************************************
1833 Check if LDAP-Server supports a certain Extension (OID in string format)
1834 ********************************************************************/
1836 bool smbldap_has_extension(LDAP *ld, const char *extension)
1838 const char *attrs[] = { "supportedExtension", NULL };
1839 return smbldap_check_root_dse(ld, attrs, extension);
1842 /*******************************************************************
1843 Check if LDAP-Server holds a given namingContext
1844 ********************************************************************/
1846 bool smbldap_has_naming_context(LDAP *ld, const char *naming_context)
1848 const char *attrs[] = { "namingContexts", NULL };
1849 return smbldap_check_root_dse(ld, attrs, naming_context);
1852 bool smbldap_set_creds(struct smbldap_state *ldap_state, bool anon, const char *dn, const char *secret)
1854 ldap_state->anonymous = anon;
1856 /* free any previously set credential */
1858 SAFE_FREE(ldap_state->bind_dn);
1859 if (ldap_state->bind_secret) {
1860 /* make sure secrets are zeroed out of memory */
1861 memset(ldap_state->bind_secret, '\0', strlen(ldap_state->bind_secret));
1862 SAFE_FREE(ldap_state->bind_secret);
1866 ldap_state->bind_dn = SMB_STRDUP(dn);
1867 ldap_state->bind_secret = SMB_STRDUP(secret);