source: branches/samba-3.3.x/source/lib/smbldap.c@ 770

Last change on this file since 770 was 370, checked in by Herwig Bauernfeind, 16 years ago

Update Samba 3.3 to 3.3.10 (source)
File size: 55.5 KB
Line 
1/*
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
9
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.
14
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.
19
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/>.
22
23*/
24
25#include "includes.h"
26#include "smbldap.h"
27
28#ifndef LDAP_OPT_SUCCESS
29#define LDAP_OPT_SUCCESS 0
30#endif
31
32/* Try not to hit the up or down server forever */
33
34#define SMBLDAP_DONT_PING_TIME 10 /* ping only all 10 seconds */
35#define SMBLDAP_NUM_RETRIES 8 /* retry only 8 times */
36
37#define SMBLDAP_IDLE_TIME 150 /* After 2.5 minutes disconnect */
38
39
40/* attributes used by Samba 2.2 */
41
42ATTRIB_MAP_ENTRY attrib_map_v22[] = {
43 { LDAP_ATTR_UID, "uid" },
44 { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
45 { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
46 { LDAP_ATTR_UNIX_HOME, "homeDirectory" },
47 { LDAP_ATTR_PWD_LAST_SET, "pwdLastSet" },
48 { LDAP_ATTR_PWD_CAN_CHANGE, "pwdCanChange" },
49 { LDAP_ATTR_PWD_MUST_CHANGE, "pwdMustChange" },
50 { LDAP_ATTR_LOGON_TIME, "logonTime" },
51 { LDAP_ATTR_LOGOFF_TIME, "logoffTime" },
52 { LDAP_ATTR_KICKOFF_TIME, "kickoffTime" },
53 { LDAP_ATTR_CN, "cn" },
54 { LDAP_ATTR_SN, "sn" },
55 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
56 { LDAP_ATTR_HOME_PATH, "smbHome" },
57 { LDAP_ATTR_HOME_DRIVE, "homeDrive" },
58 { LDAP_ATTR_LOGON_SCRIPT, "scriptPath" },
59 { LDAP_ATTR_PROFILE_PATH, "profilePath" },
60 { LDAP_ATTR_DESC, "description" },
61 { LDAP_ATTR_USER_WKS, "userWorkstations"},
62 { LDAP_ATTR_USER_RID, "rid" },
63 { LDAP_ATTR_PRIMARY_GROUP_RID, "primaryGroupID"},
64 { LDAP_ATTR_LMPW, "lmPassword" },
65 { LDAP_ATTR_NTPW, "ntPassword" },
66 { LDAP_ATTR_DOMAIN, "domain" },
67 { LDAP_ATTR_OBJCLASS, "objectClass" },
68 { LDAP_ATTR_ACB_INFO, "acctFlags" },
69 { LDAP_ATTR_MOD_TIMESTAMP, "modifyTimestamp" },
70 { LDAP_ATTR_LIST_END, NULL }
71};
72
73ATTRIB_MAP_ENTRY attrib_map_to_delete_v22[] = {
74 { LDAP_ATTR_PWD_LAST_SET, "pwdLastSet" },
75 { LDAP_ATTR_PWD_CAN_CHANGE, "pwdCanChange" },
76 { LDAP_ATTR_PWD_MUST_CHANGE, "pwdMustChange" },
77 { LDAP_ATTR_LOGON_TIME, "logonTime" },
78 { LDAP_ATTR_LOGOFF_TIME, "logoffTime" },
79 { LDAP_ATTR_KICKOFF_TIME, "kickoffTime" },
80 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
81 { LDAP_ATTR_HOME_PATH, "smbHome" },
82 { LDAP_ATTR_HOME_DRIVE, "homeDrives" },
83 { LDAP_ATTR_LOGON_SCRIPT, "scriptPath" },
84 { LDAP_ATTR_PROFILE_PATH, "profilePath" },
85 { LDAP_ATTR_USER_WKS, "userWorkstations"},
86 { LDAP_ATTR_USER_RID, "rid" },
87 { LDAP_ATTR_PRIMARY_GROUP_RID, "primaryGroupID"},
88 { LDAP_ATTR_LMPW, "lmPassword" },
89 { LDAP_ATTR_NTPW, "ntPassword" },
90 { LDAP_ATTR_DOMAIN, "domain" },
91 { LDAP_ATTR_ACB_INFO, "acctFlags" },
92 { LDAP_ATTR_LIST_END, NULL }
93};
94
95/* attributes used by Samba 3.0's sambaSamAccount */
96
97ATTRIB_MAP_ENTRY attrib_map_v30[] = {
98 { LDAP_ATTR_UID, "uid" },
99 { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
100 { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
101 { LDAP_ATTR_UNIX_HOME, "homeDirectory" },
102 { LDAP_ATTR_PWD_LAST_SET, "sambaPwdLastSet" },
103 { LDAP_ATTR_PWD_CAN_CHANGE, "sambaPwdCanChange" },
104 { LDAP_ATTR_PWD_MUST_CHANGE, "sambaPwdMustChange" },
105 { LDAP_ATTR_LOGON_TIME, "sambaLogonTime" },
106 { LDAP_ATTR_LOGOFF_TIME, "sambaLogoffTime" },
107 { LDAP_ATTR_KICKOFF_TIME, "sambaKickoffTime" },
108 { LDAP_ATTR_CN, "cn" },
109 { LDAP_ATTR_SN, "sn" },
110 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
111 { LDAP_ATTR_HOME_DRIVE, "sambaHomeDrive" },
112 { LDAP_ATTR_HOME_PATH, "sambaHomePath" },
113 { LDAP_ATTR_LOGON_SCRIPT, "sambaLogonScript" },
114 { LDAP_ATTR_PROFILE_PATH, "sambaProfilePath" },
115 { LDAP_ATTR_DESC, "description" },
116 { LDAP_ATTR_USER_WKS, "sambaUserWorkstations" },
117 { LDAP_ATTR_USER_SID, LDAP_ATTRIBUTE_SID },
118 { LDAP_ATTR_PRIMARY_GROUP_SID, "sambaPrimaryGroupSID" },
119 { LDAP_ATTR_LMPW, "sambaLMPassword" },
120 { LDAP_ATTR_NTPW, "sambaNTPassword" },
121 { LDAP_ATTR_DOMAIN, "sambaDomainName" },
122 { LDAP_ATTR_OBJCLASS, "objectClass" },
123 { LDAP_ATTR_ACB_INFO, "sambaAcctFlags" },
124 { LDAP_ATTR_MUNGED_DIAL, "sambaMungedDial" },
125 { LDAP_ATTR_BAD_PASSWORD_COUNT, "sambaBadPasswordCount" },
126 { LDAP_ATTR_BAD_PASSWORD_TIME, "sambaBadPasswordTime" },
127 { LDAP_ATTR_PWD_HISTORY, "sambaPasswordHistory" },
128 { LDAP_ATTR_MOD_TIMESTAMP, "modifyTimestamp" },
129 { LDAP_ATTR_LOGON_HOURS, "sambaLogonHours" },
130 { LDAP_ATTR_LIST_END, NULL }
131};
132
133ATTRIB_MAP_ENTRY attrib_map_to_delete_v30[] = {
134 { LDAP_ATTR_PWD_LAST_SET, "sambaPwdLastSet" },
135 { LDAP_ATTR_PWD_CAN_CHANGE, "sambaPwdCanChange" },
136 { LDAP_ATTR_PWD_MUST_CHANGE, "sambaPwdMustChange" },
137 { LDAP_ATTR_LOGON_TIME, "sambaLogonTime" },
138 { LDAP_ATTR_LOGOFF_TIME, "sambaLogoffTime" },
139 { LDAP_ATTR_KICKOFF_TIME, "sambaKickoffTime" },
140 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
141 { LDAP_ATTR_HOME_DRIVE, "sambaHomeDrive" },
142 { LDAP_ATTR_HOME_PATH, "sambaHomePath" },
143 { LDAP_ATTR_LOGON_SCRIPT, "sambaLogonScript" },
144 { LDAP_ATTR_PROFILE_PATH, "sambaProfilePath" },
145 { LDAP_ATTR_USER_WKS, "sambaUserWorkstations" },
146 { LDAP_ATTR_USER_SID, LDAP_ATTRIBUTE_SID },
147 { LDAP_ATTR_PRIMARY_GROUP_SID, "sambaPrimaryGroupSID" },
148 { LDAP_ATTR_LMPW, "sambaLMPassword" },
149 { LDAP_ATTR_NTPW, "sambaNTPassword" },
150 { LDAP_ATTR_DOMAIN, "sambaDomainName" },
151 { LDAP_ATTR_ACB_INFO, "sambaAcctFlags" },
152 { LDAP_ATTR_MUNGED_DIAL, "sambaMungedDial" },
153 { LDAP_ATTR_BAD_PASSWORD_COUNT, "sambaBadPasswordCount" },
154 { LDAP_ATTR_BAD_PASSWORD_TIME, "sambaBadPasswordTime" },
155 { LDAP_ATTR_PWD_HISTORY, "sambaPasswordHistory" },
156 { LDAP_ATTR_LOGON_HOURS, "sambaLogonHours" },
157 { LDAP_ATTR_LIST_END, NULL }
158};
159
160/* attributes used for allocating RIDs */
161
162ATTRIB_MAP_ENTRY dominfo_attr_list[] = {
163 { LDAP_ATTR_DOMAIN, "sambaDomainName" },
164 { LDAP_ATTR_NEXT_RID, "sambaNextRid" },
165 { LDAP_ATTR_NEXT_USERRID, "sambaNextUserRid" },
166 { LDAP_ATTR_NEXT_GROUPRID, "sambaNextGroupRid" },
167 { LDAP_ATTR_DOM_SID, LDAP_ATTRIBUTE_SID },
168 { LDAP_ATTR_ALGORITHMIC_RID_BASE,"sambaAlgorithmicRidBase"},
169 { LDAP_ATTR_OBJCLASS, "objectClass" },
170 { LDAP_ATTR_LIST_END, NULL },
171};
172
173/* Samba 3.0 group mapping attributes */
174
175ATTRIB_MAP_ENTRY groupmap_attr_list[] = {
176 { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
177 { LDAP_ATTR_GROUP_SID, LDAP_ATTRIBUTE_SID },
178 { LDAP_ATTR_GROUP_TYPE, "sambaGroupType" },
179 { LDAP_ATTR_SID_LIST, "sambaSIDList" },
180 { LDAP_ATTR_DESC, "description" },
181 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
182 { LDAP_ATTR_CN, "cn" },
183 { LDAP_ATTR_OBJCLASS, "objectClass" },
184 { LDAP_ATTR_LIST_END, NULL }
185};
186
187ATTRIB_MAP_ENTRY groupmap_attr_list_to_delete[] = {
188 { LDAP_ATTR_GROUP_SID, LDAP_ATTRIBUTE_SID },
189 { LDAP_ATTR_GROUP_TYPE, "sambaGroupType" },
190 { LDAP_ATTR_DESC, "description" },
191 { LDAP_ATTR_DISPLAY_NAME, "displayName" },
192 { LDAP_ATTR_SID_LIST, "sambaSIDList" },
193 { LDAP_ATTR_LIST_END, NULL }
194};
195
196/* idmap_ldap sambaUnixIdPool */
197
198ATTRIB_MAP_ENTRY idpool_attr_list[] = {
199 { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
200 { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
201 { LDAP_ATTR_OBJCLASS, "objectClass" },
202 { LDAP_ATTR_LIST_END, NULL }
203};
204
205ATTRIB_MAP_ENTRY sidmap_attr_list[] = {
206 { LDAP_ATTR_SID, LDAP_ATTRIBUTE_SID },
207 { LDAP_ATTR_UIDNUMBER, LDAP_ATTRIBUTE_UIDNUMBER},
208 { LDAP_ATTR_GIDNUMBER, LDAP_ATTRIBUTE_GIDNUMBER},
209 { LDAP_ATTR_OBJCLASS, "objectClass" },
210 { LDAP_ATTR_LIST_END, NULL }
211};
212
213/**********************************************************************
214 perform a simple table lookup and return the attribute name
215 **********************************************************************/
216
217 const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key )
218{
219 int i = 0;
220
221 while ( table[i].attrib != LDAP_ATTR_LIST_END ) {
222 if ( table[i].attrib == key )
223 return table[i].name;
224 i++;
225 }
226
227 return NULL;
228}
229
230
231/**********************************************************************
232 Return the list of attribute names from a mapping table
233 **********************************************************************/
234
235 const char** get_attr_list( TALLOC_CTX *mem_ctx, ATTRIB_MAP_ENTRY table[] )
236{
237 const char **names;
238 int i = 0;
239
240 while ( table[i].attrib != LDAP_ATTR_LIST_END )
241 i++;
242 i++;
243
244 names = TALLOC_ARRAY( mem_ctx, const char*, i );
245 if ( !names ) {
246 DEBUG(0,("get_attr_list: out of memory\n"));
247 return NULL;
248 }
249
250 i = 0;
251 while ( table[i].attrib != LDAP_ATTR_LIST_END ) {
252 names[i] = talloc_strdup( names, table[i].name );
253 i++;
254 }
255 names[i] = NULL;
256
257 return names;
258}
259
260/*******************************************************************
261 Search an attribute and return the first value found.
262******************************************************************/
263
264 bool smbldap_get_single_attribute (LDAP * ldap_struct, LDAPMessage * entry,
265 const char *attribute, char *value,
266 int max_len)
267{
268 char **values;
269
270 if ( !attribute )
271 return False;
272
273 value[0] = '\0';
274
275 if ((values = ldap_get_values (ldap_struct, entry, attribute)) == NULL) {
276 DEBUG (10, ("smbldap_get_single_attribute: [%s] = [<does not exist>]\n", attribute));
277
278 return False;
279 }
280
281 if (convert_string(CH_UTF8, CH_UNIX,values[0], -1, value, max_len, False) == (size_t)-1) {
282 DEBUG(1, ("smbldap_get_single_attribute: string conversion of [%s] = [%s] failed!\n",
283 attribute, values[0]));
284 ldap_value_free(values);
285 return False;
286 }
287
288 ldap_value_free(values);
289#ifdef DEBUG_PASSWORDS
290 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n", attribute, value));
291#endif
292 return True;
293}
294
295 char * smbldap_talloc_single_attribute(LDAP *ldap_struct, LDAPMessage *entry,
296 const char *attribute,
297 TALLOC_CTX *mem_ctx)
298{
299 char **values;
300 char *result;
301 size_t converted_size;
302
303 if (attribute == NULL) {
304 return NULL;
305 }
306
307 values = ldap_get_values(ldap_struct, entry, attribute);
308
309 if (values == NULL) {
310 DEBUG(10, ("attribute %s does not exist\n", attribute));
311 return NULL;
312 }
313
314 if (ldap_count_values(values) != 1) {
315 DEBUG(10, ("attribute %s has %d values, expected only one\n",
316 attribute, ldap_count_values(values)));
317 ldap_value_free(values);
318 return NULL;
319 }
320
321 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
322 DEBUG(10, ("pull_utf8_talloc failed\n"));
323 ldap_value_free(values);
324 return NULL;
325 }
326
327 ldap_value_free(values);
328
329#ifdef DEBUG_PASSWORDS
330 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n",
331 attribute, result));
332#endif
333 return result;
334}
335
336 char * smbldap_talloc_first_attribute(LDAP *ldap_struct, LDAPMessage *entry,
337 const char *attribute,
338 TALLOC_CTX *mem_ctx)
339{
340 char **values;
341 char *result;
342 size_t converted_size;
343
344 if (attribute == NULL) {
345 return NULL;
346 }
347
348 values = ldap_get_values(ldap_struct, entry, attribute);
349
350 if (values == NULL) {
351 DEBUG(10, ("attribute %s does not exist\n", attribute));
352 return NULL;
353 }
354
355 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
356 DEBUG(10, ("pull_utf8_talloc failed\n"));
357 ldap_value_free(values);
358 return NULL;
359 }
360
361 ldap_value_free(values);
362
363#ifdef DEBUG_PASSWORDS
364 DEBUG (100, ("smbldap_get_first_attribute: [%s] = [%s]\n",
365 attribute, result));
366#endif
367 return result;
368}
369
370 char * smbldap_talloc_smallest_attribute(LDAP *ldap_struct, LDAPMessage *entry,
371 const char *attribute,
372 TALLOC_CTX *mem_ctx)
373{
374 char **values;
375 char *result;
376 size_t converted_size;
377 int i, num_values;
378
379 if (attribute == NULL) {
380 return NULL;
381 }
382
383 values = ldap_get_values(ldap_struct, entry, attribute);
384
385 if (values == NULL) {
386 DEBUG(10, ("attribute %s does not exist\n", attribute));
387 return NULL;
388 }
389
390 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
391 DEBUG(10, ("pull_utf8_talloc failed\n"));
392 ldap_value_free(values);
393 return NULL;
394 }
395
396 num_values = ldap_count_values(values);
397
398 for (i=1; i<num_values; i++) {
399 char *tmp;
400
401 if (!pull_utf8_talloc(mem_ctx, &tmp, values[i],
402 &converted_size)) {
403 DEBUG(10, ("pull_utf8_talloc failed\n"));
404 TALLOC_FREE(result);
405 ldap_value_free(values);
406 return NULL;
407 }
408
409 if (StrCaseCmp(tmp, result) < 0) {
410 TALLOC_FREE(result);
411 result = tmp;
412 } else {
413 TALLOC_FREE(tmp);
414 }
415 }
416
417 ldap_value_free(values);
418
419#ifdef DEBUG_PASSWORDS
420 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n",
421 attribute, result));
422#endif
423 return result;
424}
425
426 char * smbldap_talloc_smallest_attribute(LDAP *ldap_struct, LDAPMessage *entry,
427 const char *attribute,
428 TALLOC_CTX *mem_ctx)
429{
430 char **values;
431 char *result;
432 size_t converted_size;
433 int i, num_values;
434
435 if (attribute == NULL) {
436 return NULL;
437 }
438
439 values = ldap_get_values(ldap_struct, entry, attribute);
440
441 if (values == NULL) {
442 DEBUG(10, ("attribute %s does not exist\n", attribute));
443 return NULL;
444 }
445
446 if (!pull_utf8_talloc(mem_ctx, &result, values[0], &converted_size)) {
447 DEBUG(10, ("pull_utf8_talloc failed\n"));
448 ldap_value_free(values);
449 return NULL;
450 }
451
452 num_values = ldap_count_values(values);
453
454 for (i=1; i<num_values; i++) {
455 char *tmp;
456
457 if (!pull_utf8_talloc(mem_ctx, &tmp, values[i],
458 &converted_size)) {
459 DEBUG(10, ("pull_utf8_talloc failed\n"));
460 TALLOC_FREE(result);
461 ldap_value_free(values);
462 return NULL;
463 }
464
465 if (StrCaseCmp(tmp, result) < 0) {
466 TALLOC_FREE(result);
467 result = tmp;
468 } else {
469 TALLOC_FREE(tmp);
470 }
471 }
472
473 ldap_value_free(values);
474
475#ifdef DEBUG_PASSWORDS
476 DEBUG (100, ("smbldap_get_single_attribute: [%s] = [%s]\n",
477 attribute, result));
478#endif
479 return result;
480}
481
482 static int ldapmsg_destructor(LDAPMessage **result) {
483 ldap_msgfree(*result);
484 return 0;
485}
486
487 void talloc_autofree_ldapmsg(TALLOC_CTX *mem_ctx, LDAPMessage *result)
488{
489 LDAPMessage **handle;
490
491 if (result == NULL) {
492 return;
493 }
494
495 handle = TALLOC_P(mem_ctx, LDAPMessage *);
496 SMB_ASSERT(handle != NULL);
497
498 *handle = result;
499 talloc_set_destructor(handle, ldapmsg_destructor);
500}
501
502 static int ldapmod_destructor(LDAPMod ***mod) {
503 ldap_mods_free(*mod, True);
504 return 0;
505}
506
507 void talloc_autofree_ldapmod(TALLOC_CTX *mem_ctx, LDAPMod **mod)
508{
509 LDAPMod ***handle;
510
511 if (mod == NULL) {
512 return;
513 }
514
515 handle = TALLOC_P(mem_ctx, LDAPMod **);
516 SMB_ASSERT(handle != NULL);
517
518 *handle = mod;
519 talloc_set_destructor(handle, ldapmod_destructor);
520}
521
522/************************************************************************
523 Routine to manage the LDAPMod structure array
524 manage memory used by the array, by each struct, and values
525 ***********************************************************************/
526
527 void smbldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value)
528{
529 LDAPMod **mods;
530 int i;
531 int j;
532
533 mods = *modlist;
534
535 /* sanity checks on the mod values */
536
537 if (attribute == NULL || *attribute == '\0') {
538 return;
539 }
540
541#if 0 /* commented out after discussion with abartlet. Do not reenable.
542 left here so other do not re-add similar code --jerry */
543 if (value == NULL || *value == '\0')
544 return;
545#endif
546
547 if (mods == NULL) {
548 mods = SMB_MALLOC_P(LDAPMod *);
549 if (mods == NULL) {
550 smb_panic("smbldap_set_mod: out of memory!");
551 /* notreached. */
552 }
553 mods[0] = NULL;
554 }
555
556 for (i = 0; mods[i] != NULL; ++i) {
557 if (mods[i]->mod_op == modop && strequal(mods[i]->mod_type, attribute))
558 break;
559 }
560
561 if (mods[i] == NULL) {
562 mods = SMB_REALLOC_ARRAY (mods, LDAPMod *, i + 2);
563 if (mods == NULL) {
564 smb_panic("smbldap_set_mod: out of memory!");
565 /* notreached. */
566 }
567 mods[i] = SMB_MALLOC_P(LDAPMod);
568 if (mods[i] == NULL) {
569 smb_panic("smbldap_set_mod: out of memory!");
570 /* notreached. */
571 }
572 mods[i]->mod_op = modop;
573 mods[i]->mod_values = NULL;
574 mods[i]->mod_type = SMB_STRDUP(attribute);
575 mods[i + 1] = NULL;
576 }
577
578 if (value != NULL) {
579 char *utf8_value = NULL;
580 size_t converted_size;
581
582 j = 0;
583 if (mods[i]->mod_values != NULL) {
584 for (; mods[i]->mod_values[j] != NULL; j++);
585 }
586 mods[i]->mod_values = SMB_REALLOC_ARRAY(mods[i]->mod_values, char *, j + 2);
587
588 if (mods[i]->mod_values == NULL) {
589 smb_panic("smbldap_set_mod: out of memory!");
590 /* notreached. */
591 }
592
593 if (!push_utf8_allocate(&utf8_value, value, &converted_size)) {
594 smb_panic("smbldap_set_mod: String conversion failure!");
595 /* notreached. */
596 }
597
598 mods[i]->mod_values[j] = utf8_value;
599
600 mods[i]->mod_values[j + 1] = NULL;
601 }
602 *modlist = mods;
603}
604
605/**********************************************************************
606 Set attribute to newval in LDAP, regardless of what value the
607 attribute had in LDAP before.
608*********************************************************************/
609
610 void smbldap_make_mod(LDAP *ldap_struct, LDAPMessage *existing,
611 LDAPMod ***mods,
612 const char *attribute, const char *newval)
613{
614 char oldval[2048]; /* current largest allowed value is mungeddial */
615 bool existed;
616
617 if (attribute == NULL) {
618 /* This can actually happen for ldapsam_compat where we for
619 * example don't have a password history */
620 return;
621 }
622
623 if (existing != NULL) {
624 existed = smbldap_get_single_attribute(ldap_struct, existing, attribute, oldval, sizeof(oldval));
625 } else {
626 existed = False;
627 *oldval = '\0';
628 }
629
630 /* all of our string attributes are case insensitive */
631
632 if (existed && newval && (StrCaseCmp(oldval, newval) == 0)) {
633
634 /* Believe it or not, but LDAP will deny a delete and
635 an add at the same time if the values are the
636 same... */
637 DEBUG(10,("smbldap_make_mod: attribute |%s| not changed.\n", attribute));
638 return;
639 }
640
641 if (existed) {
642 /* There has been no value before, so don't delete it.
643 * Here's a possible race: We might end up with
644 * duplicate attributes */
645 /* By deleting exactly the value we found in the entry this
646 * should be race-free in the sense that the LDAP-Server will
647 * deny the complete operation if somebody changed the
648 * attribute behind our back. */
649 /* This will also allow modifying single valued attributes
650 * in Novell NDS. In NDS you have to first remove attribute and then
651 * you could add new value */
652
653 DEBUG(10,("smbldap_make_mod: deleting attribute |%s| values |%s|\n", attribute, oldval));
654 smbldap_set_mod(mods, LDAP_MOD_DELETE, attribute, oldval);
655 }
656
657 /* Regardless of the real operation (add or modify)
658 we add the new value here. We rely on deleting
659 the old value, should it exist. */
660
661 if ((newval != NULL) && (strlen(newval) > 0)) {
662 DEBUG(10,("smbldap_make_mod: adding attribute |%s| value |%s|\n", attribute, newval));
663 smbldap_set_mod(mods, LDAP_MOD_ADD, attribute, newval);
664 }
665}
666
667/**********************************************************************
668 Some varients of the LDAP rebind code do not pass in the third 'arg'
669 pointer to a void*, so we try and work around it by assuming that the
670 value of the 'LDAP *' pointer is the same as the one we had passed in
671 **********************************************************************/
672
673struct smbldap_state_lookup {
674 LDAP *ld;
675 struct smbldap_state *smbldap_state;
676 struct smbldap_state_lookup *prev, *next;
677};
678
679static struct smbldap_state_lookup *smbldap_state_lookup_list;
680
681static struct smbldap_state *smbldap_find_state(LDAP *ld)
682{
683 struct smbldap_state_lookup *t;
684
685 for (t = smbldap_state_lookup_list; t; t = t->next) {
686 if (t->ld == ld) {
687 return t->smbldap_state;
688 }
689 }
690 return NULL;
691}
692
693static void smbldap_delete_state(struct smbldap_state *smbldap_state)
694{
695 struct smbldap_state_lookup *t;
696
697 for (t = smbldap_state_lookup_list; t; t = t->next) {
698 if (t->smbldap_state == smbldap_state) {
699 DLIST_REMOVE(smbldap_state_lookup_list, t);
700 SAFE_FREE(t);
701 return;
702 }
703 }
704}
705
706static void smbldap_store_state(LDAP *ld, struct smbldap_state *smbldap_state)
707{
708 struct smbldap_state *tmp_ldap_state;
709 struct smbldap_state_lookup *t;
710
711 if ((tmp_ldap_state = smbldap_find_state(ld))) {
712 SMB_ASSERT(tmp_ldap_state == smbldap_state);
713 return;
714 }
715
716 t = SMB_XMALLOC_P(struct smbldap_state_lookup);
717 ZERO_STRUCTP(t);
718
719 DLIST_ADD_END(smbldap_state_lookup_list, t, struct smbldap_state_lookup *);
720 t->ld = ld;
721 t->smbldap_state = smbldap_state;
722}
723
724/********************************************************************
725 start TLS on an existing LDAP connection
726*******************************************************************/
727
728int smb_ldap_start_tls(LDAP *ldap_struct, int version)
729{
730#ifdef LDAP_OPT_X_TLS
731 int rc;
732#endif
733
734 if (lp_ldap_ssl() != LDAP_SSL_START_TLS) {
735 return LDAP_SUCCESS;
736 }
737
738#ifdef LDAP_OPT_X_TLS
739 if (version != LDAP_VERSION3) {
740 DEBUG(0, ("Need LDAPv3 for Start TLS\n"));
741 return LDAP_OPERATIONS_ERROR;
742 }
743
744 if ((rc = ldap_start_tls_s (ldap_struct, NULL, NULL)) != LDAP_SUCCESS) {
745 DEBUG(0,("Failed to issue the StartTLS instruction: %s\n",
746 ldap_err2string(rc)));
747 return rc;
748 }
749
750 DEBUG (3, ("StartTLS issued: using a TLS connection\n"));
751 return LDAP_SUCCESS;
752#else
753 DEBUG(0,("StartTLS not supported by LDAP client libraries!\n"));
754 return LDAP_OPERATIONS_ERROR;
755#endif
756}
757
758/********************************************************************
759 setup a connection to the LDAP server based on a uri
760*******************************************************************/
761
762int smb_ldap_setup_conn(LDAP **ldap_struct, const char *uri)
763{
764 int rc;
765
766 DEBUG(10, ("smb_ldap_setup_connection: %s\n", uri));
767
768#ifdef HAVE_LDAP_INITIALIZE
769
770 rc = ldap_initialize(ldap_struct, uri);
771 if (rc) {
772 DEBUG(0, ("ldap_initialize: %s\n", ldap_err2string(rc)));
773 }
774
775 return rc;
776#else
777
778 /* Parse the string manually */
779
780 {
781 int port = 0;
782 fstring protocol;
783 fstring host;
784 SMB_ASSERT(sizeof(protocol)>10 && sizeof(host)>254);
785
786
787 /* skip leading "URL:" (if any) */
788 if ( strnequal( uri, "URL:", 4 ) ) {
789 uri += 4;
790 }
791
792 sscanf(uri, "%10[^:]://%254[^:/]:%d", protocol, host, &port);
793
794 if (port == 0) {
795 if (strequal(protocol, "ldap")) {
796 port = LDAP_PORT;
797 } else if (strequal(protocol, "ldaps")) {
798 port = LDAPS_PORT;
799 } else {
800 DEBUG(0, ("unrecognised protocol (%s)!\n", protocol));
801 }
802 }
803
804 if ((*ldap_struct = ldap_init(host, port)) == NULL) {
805 DEBUG(0, ("ldap_init failed !\n"));
806 return LDAP_OPERATIONS_ERROR;
807 }
808
809 if (strequal(protocol, "ldaps")) {
810#ifdef LDAP_OPT_X_TLS
811 int tls = LDAP_OPT_X_TLS_HARD;
812 if (ldap_set_option (*ldap_struct, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS)
813 {
814 DEBUG(0, ("Failed to setup a TLS session\n"));
815 }
816
817 DEBUG(3,("LDAPS option set...!\n"));
818#else
819 DEBUG(0,("smbldap_open_connection: Secure connection not supported by LDAP client libraries!\n"));
820 return LDAP_OPERATIONS_ERROR;
821#endif /* LDAP_OPT_X_TLS */
822 }
823 }
824#endif /* HAVE_LDAP_INITIALIZE */
825
826
827 /* now set connection timeout */
828#ifdef LDAP_X_OPT_CONNECT_TIMEOUT /* Netscape */
829 {
830 int ct = lp_ldap_connection_timeout()*1000;
831 rc = ldap_set_option(*ldap_struct, LDAP_X_OPT_CONNECT_TIMEOUT, &ct);
832 if (rc != LDAP_SUCCESS) {
833 DEBUG(0,("Failed to setup an ldap connection timeout %d: %s\n",
834 ct, ldap_err2string(rc)));
835 }
836 }
837#elif defined (LDAP_OPT_NETWORK_TIMEOUT) /* OpenLDAP */
838 {
839 struct timeval ct;
840 ct.tv_usec = 0;
841 ct.tv_sec = lp_ldap_connection_timeout();
842 rc = ldap_set_option(*ldap_struct, LDAP_OPT_NETWORK_TIMEOUT, &ct);
843 if (rc != LDAP_SUCCESS) {
844 DEBUG(0,("Failed to setup an ldap connection timeout %d: %s\n",
845 (int)ct.tv_sec, ldap_err2string(rc)));
846 }
847 }
848#endif
849
850 return LDAP_SUCCESS;
851}
852
853/********************************************************************
854 try to upgrade to Version 3 LDAP if not already, in either case return current
855 version
856 *******************************************************************/
857
858int smb_ldap_upgrade_conn(LDAP *ldap_struct, int *new_version)
859{
860 int version;
861 int rc;
862
863 /* assume the worst */
864 *new_version = LDAP_VERSION2;
865
866 rc = ldap_get_option(ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
867 if (rc) {
868 return rc;
869 }
870
871 if (version == LDAP_VERSION3) {
872 *new_version = LDAP_VERSION3;
873 return LDAP_SUCCESS;
874 }
875
876 /* try upgrade */
877 version = LDAP_VERSION3;
878 rc = ldap_set_option (ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
879 if (rc) {
880 return rc;
881 }
882
883 *new_version = LDAP_VERSION3;
884 return LDAP_SUCCESS;
885}
886
887/*******************************************************************
888 open a connection to the ldap server (just until the bind)
889 ******************************************************************/
890
891int smb_ldap_setup_full_conn(LDAP **ldap_struct, const char *uri)
892{
893 int rc, version;
894
895 rc = smb_ldap_setup_conn(ldap_struct, uri);
896 if (rc) {
897 return rc;
898 }
899
900 rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
901 if (rc) {
902 return rc;
903 }
904
905 rc = smb_ldap_start_tls(*ldap_struct, version);
906 if (rc) {
907 return rc;
908 }
909
910 return LDAP_SUCCESS;
911}
912
913/*******************************************************************
914 open a connection to the ldap server.
915******************************************************************/
916static int smbldap_open_connection (struct smbldap_state *ldap_state)
917
918{
919 int rc = LDAP_SUCCESS;
920 int version;
921 LDAP **ldap_struct = &ldap_state->ldap_struct;
922
923 rc = smb_ldap_setup_conn(ldap_struct, ldap_state->uri);
924 if (rc) {
925 return rc;
926 }
927
928 /* Store the LDAP pointer in a lookup list */
929
930 smbldap_store_state(*ldap_struct, ldap_state);
931
932 /* Upgrade to LDAPv3 if possible */
933
934 rc = smb_ldap_upgrade_conn(*ldap_struct, &version);
935 if (rc) {
936 return rc;
937 }
938
939 /* Start TLS if required */
940
941 rc = smb_ldap_start_tls(*ldap_struct, version);
942 if (rc) {
943 return rc;
944 }
945
946 DEBUG(2, ("smbldap_open_connection: connection opened\n"));
947 return rc;
948}
949
950/*******************************************************************
951 a rebind function for authenticated referrals
952 This version takes a void* that we can shove useful stuff in :-)
953******************************************************************/
954#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
955#else
956static int rebindproc_with_state (LDAP * ld, char **whop, char **credp,
957 int *methodp, int freeit, void *arg)
958{
959 struct smbldap_state *ldap_state = arg;
960
961 /** @TODO Should we be doing something to check what servers we rebind to?
962 Could we get a referral to a machine that we don't want to give our
963 username and password to? */
964
965 if (freeit) {
966 SAFE_FREE(*whop);
967 if (*credp) {
968 memset(*credp, '\0', strlen(*credp));
969 }
970 SAFE_FREE(*credp);
971 } else {
972 DEBUG(5,("rebind_proc_with_state: Rebinding as \"%s\"\n",
973 ldap_state->bind_dn?ldap_state->bind_dn:"[Anonymous bind]"));
974
975 if (ldap_state->anonymous) {
976 *whop = NULL;
977 *credp = NULL;
978 } else {
979 *whop = SMB_STRDUP(ldap_state->bind_dn);
980 if (!*whop) {
981 return LDAP_NO_MEMORY;
982 }
983 *credp = SMB_STRDUP(ldap_state->bind_secret);
984 if (!*credp) {
985 SAFE_FREE(*whop);
986 return LDAP_NO_MEMORY;
987 }
988 }
989 *methodp = LDAP_AUTH_SIMPLE;
990 }
991
992 GetTimeOfDay(&ldap_state->last_rebind);
993
994 return 0;
995}
996#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
997
998/*******************************************************************
999 a rebind function for authenticated referrals
1000 This version takes a void* that we can shove useful stuff in :-)
1001 and actually does the connection.
1002******************************************************************/
1003#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
1004static int rebindproc_connect_with_state (LDAP *ldap_struct,
1005 LDAP_CONST char *url,
1006 ber_tag_t request,
1007 ber_int_t msgid, void *arg)
1008{
1009 struct smbldap_state *ldap_state =
1010 (struct smbldap_state *)arg;
1011 int rc;
1012 int version;
1013
1014 DEBUG(5,("rebindproc_connect_with_state: Rebinding to %s as \"%s\"\n",
1015 url, ldap_state->bind_dn?ldap_state->bind_dn:"[Anonymous bind]"));
1016
1017 /* call START_TLS again (ldaps:// is handled by the OpenLDAP library
1018 * itself) before rebinding to another LDAP server to avoid to expose
1019 * our credentials. At least *try* to secure the connection - Guenther */
1020
1021 smb_ldap_upgrade_conn(ldap_struct, &version);
1022 smb_ldap_start_tls(ldap_struct, version);
1023
1024 /** @TODO Should we be doing something to check what servers we rebind to?
1025 Could we get a referral to a machine that we don't want to give our
1026 username and password to? */
1027
1028 rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
1029
1030 /* only set the last rebind timestamp when we did rebind after a
1031 * non-read LDAP operation. That way we avoid the replication sleep
1032 * after a simple redirected search operation - Guenther */
1033
1034 switch (request) {
1035
1036 case LDAP_REQ_MODIFY:
1037 case LDAP_REQ_ADD:
1038 case LDAP_REQ_DELETE:
1039 case LDAP_REQ_MODDN:
1040 case LDAP_REQ_EXTENDED:
1041 DEBUG(10,("rebindproc_connect_with_state: "
1042 "setting last_rebind timestamp "
1043 "(req: 0x%02x)\n", (unsigned int)request));
1044 GetTimeOfDay(&ldap_state->last_rebind);
1045 break;
1046 default:
1047 ZERO_STRUCT(ldap_state->last_rebind);
1048 break;
1049 }
1050
1051 return rc;
1052}
1053#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
1054
1055/*******************************************************************
1056 Add a rebind function for authenticated referrals
1057******************************************************************/
1058#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
1059#else
1060# if LDAP_SET_REBIND_PROC_ARGS == 2
1061static int rebindproc (LDAP *ldap_struct, char **whop, char **credp,
1062 int *method, int freeit )
1063{
1064 struct smbldap_state *ldap_state = smbldap_find_state(ldap_struct);
1065
1066 return rebindproc_with_state(ldap_struct, whop, credp,
1067 method, freeit, ldap_state);
1068
1069}
1070# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
1071#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
1072
1073/*******************************************************************
1074 a rebind function for authenticated referrals
1075 this also does the connection, but no void*.
1076******************************************************************/
1077#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
1078# if LDAP_SET_REBIND_PROC_ARGS == 2
1079static int rebindproc_connect (LDAP * ld, LDAP_CONST char *url, int request,
1080 ber_int_t msgid)
1081{
1082 struct smbldap_state *ldap_state = smbldap_find_state(ld);
1083
1084 return rebindproc_connect_with_state(ld, url, (ber_tag_t)request, msgid,
1085 ldap_state);
1086}
1087# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/
1088#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
1089
1090/*******************************************************************
1091 connect to the ldap server under system privilege.
1092******************************************************************/
1093static int smbldap_connect_system(struct smbldap_state *ldap_state, LDAP * ldap_struct)
1094{
1095 int rc;
1096 int version;
1097
1098 if (!ldap_state->anonymous && !ldap_state->bind_dn) {
1099
1100 /* get the default dn and password only if they are not set already */
1101 if (!fetch_ldap_pw(&ldap_state->bind_dn, &ldap_state->bind_secret)) {
1102 DEBUG(0, ("ldap_connect_system: Failed to retrieve password from secrets.tdb\n"));
1103 return LDAP_INVALID_CREDENTIALS;
1104 }
1105 }
1106
1107 /* removed the sasl_bind_s "EXTERNAL" stuff, as my testsuite
1108 (OpenLDAP) doesnt' seem to support it */
1109
1110 DEBUG(10,("ldap_connect_system: Binding to ldap server %s as \"%s\"\n",
1111 ldap_state->uri, ldap_state->bind_dn));
1112
1113#ifdef HAVE_LDAP_SET_REBIND_PROC
1114#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)
1115# if LDAP_SET_REBIND_PROC_ARGS == 2
1116 ldap_set_rebind_proc(ldap_struct, &rebindproc_connect);
1117# endif
1118# if LDAP_SET_REBIND_PROC_ARGS == 3
1119 ldap_set_rebind_proc(ldap_struct, &rebindproc_connect_with_state, (void *)ldap_state);
1120# endif
1121#else /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
1122# if LDAP_SET_REBIND_PROC_ARGS == 2
1123 ldap_set_rebind_proc(ldap_struct, &rebindproc);
1124# endif
1125# if LDAP_SET_REBIND_PROC_ARGS == 3
1126 ldap_set_rebind_proc(ldap_struct, &rebindproc_with_state, (void *)ldap_state);
1127# endif
1128#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
1129#endif
1130
1131 rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
1132
1133 if (rc != LDAP_SUCCESS) {
1134 char *ld_error = NULL;
1135 ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1136 &ld_error);
1137 DEBUG(ldap_state->num_failures ? 2 : 0,
1138 ("failed to bind to server %s with dn=\"%s\" Error: %s\n\t%s\n",
1139 ldap_state->uri,
1140 ldap_state->bind_dn ? ldap_state->bind_dn : "[Anonymous bind]",
1141 ldap_err2string(rc),
1142 ld_error ? ld_error : "(unknown)"));
1143 SAFE_FREE(ld_error);
1144 ldap_state->num_failures++;
1145 return rc;
1146 }
1147
1148 ldap_state->num_failures = 0;
1149 ldap_state->paged_results = False;
1150
1151 ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version);
1152
1153 if (smbldap_has_control(ldap_state->ldap_struct, ADS_PAGE_CTL_OID) && version == 3) {
1154 ldap_state->paged_results = True;
1155 }
1156
1157 DEBUG(3, ("ldap_connect_system: successful connection to the LDAP server\n"));
1158 DEBUGADD(10, ("ldap_connect_system: LDAP server %s support paged results\n",
1159 ldap_state->paged_results ? "does" : "does not"));
1160 return rc;
1161}
1162
1163static void smbldap_idle_fn(struct event_context *event_ctx,
1164 struct timed_event *te,
1165 struct timeval now,
1166 void *private_data);
1167
1168/**********************************************************************
1169 Connect to LDAP server (called before every ldap operation)
1170*********************************************************************/
1171static int smbldap_open(struct smbldap_state *ldap_state)
1172{
1173 int rc, opt_rc;
1174 bool reopen = False;
1175 SMB_ASSERT(ldap_state);
1176
1177 if ((ldap_state->ldap_struct != NULL) && ((ldap_state->last_ping + SMBLDAP_DONT_PING_TIME) < time(NULL))) {
1178
1179#ifdef HAVE_UNIXSOCKET
1180 struct sockaddr_un addr;
1181#else
1182 struct sockaddr addr;
1183#endif
1184 socklen_t len = sizeof(addr);
1185 int sd;
1186
1187 opt_rc = ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_DESC, &sd);
1188 if (opt_rc == 0 && (getpeername(sd, (struct sockaddr *) &addr, &len)) < 0 )
1189 reopen = True;
1190
1191#ifdef HAVE_UNIXSOCKET
1192 if (opt_rc == 0 && addr.sun_family == AF_UNIX)
1193 reopen = True;
1194#endif
1195 if (reopen) {
1196 /* the other end has died. reopen. */
1197 ldap_unbind(ldap_state->ldap_struct);
1198 ldap_state->ldap_struct = NULL;
1199 ldap_state->last_ping = (time_t)0;
1200 } else {
1201 ldap_state->last_ping = time(NULL);
1202 }
1203 }
1204
1205 if (ldap_state->ldap_struct != NULL) {
1206 DEBUG(11,("smbldap_open: already connected to the LDAP server\n"));
1207 return LDAP_SUCCESS;
1208 }
1209
1210 if ((rc = smbldap_open_connection(ldap_state))) {
1211 return rc;
1212 }
1213
1214 if ((rc = smbldap_connect_system(ldap_state, ldap_state->ldap_struct))) {
1215 ldap_unbind(ldap_state->ldap_struct);
1216 ldap_state->ldap_struct = NULL;
1217 return rc;
1218 }
1219
1220
1221 ldap_state->last_ping = time(NULL);
1222 ldap_state->pid = sys_getpid();
1223
1224 TALLOC_FREE(ldap_state->idle_event);
1225
1226 if (ldap_state->event_context != NULL) {
1227 ldap_state->idle_event = event_add_timed(
1228 ldap_state->event_context, NULL,
1229 timeval_current_ofs(SMBLDAP_IDLE_TIME, 0),
1230 smbldap_idle_fn, ldap_state);
1231 }
1232
1233 DEBUG(4,("The LDAP server is successfully connected\n"));
1234
1235 return LDAP_SUCCESS;
1236}
1237
1238/**********************************************************************
1239Disconnect from LDAP server
1240*********************************************************************/
1241static NTSTATUS smbldap_close(struct smbldap_state *ldap_state)
1242{
1243 if (!ldap_state)
1244 return NT_STATUS_INVALID_PARAMETER;
1245
1246 if (ldap_state->ldap_struct != NULL) {
1247 ldap_unbind(ldap_state->ldap_struct);
1248 ldap_state->ldap_struct = NULL;
1249 }
1250
1251 smbldap_delete_state(ldap_state);
1252
1253 DEBUG(5,("The connection to the LDAP server was closed\n"));
1254 /* maybe free the results here --metze */
1255
1256 return NT_STATUS_OK;
1257}
1258
1259static bool got_alarm;
1260
1261static void (*old_handler)(int);
1262
1263static void gotalarm_sig(int dummy)
1264{
1265 got_alarm = True;
1266}
1267
1268static int another_ldap_try(struct smbldap_state *ldap_state, int *rc,
1269 int *attempts, time_t endtime)
1270{
1271 time_t now = time(NULL);
1272 int open_rc = LDAP_SERVER_DOWN;
1273
1274 if (*rc != LDAP_SERVER_DOWN)
1275 goto no_next;
1276
1277 if (now >= endtime) {
1278 smbldap_close(ldap_state);
1279 *rc = LDAP_TIMEOUT;
1280 goto no_next;
1281 }
1282
1283 if (*attempts == 0) {
1284 got_alarm = False;
1285 old_handler = CatchSignal(SIGALRM, gotalarm_sig);
1286 alarm(endtime - now);
1287
1288 if (ldap_state->pid != sys_getpid())
1289 smbldap_close(ldap_state);
1290 }
1291
1292 while (1) {
1293
1294 if (*attempts != 0)
1295 smb_msleep(1000);
1296
1297 *attempts += 1;
1298
1299 open_rc = smbldap_open(ldap_state);
1300
1301 if (open_rc == LDAP_SUCCESS) {
1302 ldap_state->last_use = now;
1303 return True;
1304 }
1305
1306 if (open_rc == LDAP_INSUFFICIENT_ACCESS) {
1307 /* The fact that we are non-root or any other
1308 * access-denied condition will not change in the next
1309 * round of trying */
1310 *rc = open_rc;
1311 break;
1312 }
1313
1314 if (got_alarm) {
1315 *rc = LDAP_TIMEOUT;
1316 break;
1317 }
1318
1319 if (open_rc != LDAP_SUCCESS) {
1320 DEBUG(1, ("Connection to LDAP server failed for the "
1321 "%d try!\n", *attempts));
1322 }
1323 }
1324
1325 no_next:
1326 CatchSignal(SIGALRM, old_handler);
1327 alarm(0);
1328 ldap_state->last_use = now;
1329 return False;
1330}
1331
1332/*********************************************************************
1333 ********************************************************************/
1334
1335static int smbldap_search_ext(struct smbldap_state *ldap_state,
1336 const char *base, int scope, const char *filter,
1337 const char *attrs[], int attrsonly,
1338 LDAPControl **sctrls, LDAPControl **cctrls,
1339 int sizelimit, LDAPMessage **res)
1340{
1341 int rc = LDAP_SERVER_DOWN;
1342 int attempts = 0;
1343 char *utf8_filter;
1344 time_t endtime = time(NULL)+lp_ldap_timeout();
1345 struct timeval timeout;
1346 size_t converted_size;
1347
1348 SMB_ASSERT(ldap_state);
1349
1350 DEBUG(5,("smbldap_search_ext: base => [%s], filter => [%s], "
1351 "scope => [%d]\n", base, filter, scope));
1352
1353 if (ldap_state->last_rebind.tv_sec > 0) {
1354 struct timeval tval;
1355 SMB_BIG_INT tdiff = 0;
1356 int sleep_time = 0;
1357
1358 ZERO_STRUCT(tval);
1359 GetTimeOfDay(&tval);
1360
1361 tdiff = usec_time_diff(&tval, &ldap_state->last_rebind);
1362 tdiff /= 1000; /* Convert to milliseconds. */
1363
1364 sleep_time = lp_ldap_replication_sleep()-(int)tdiff;
1365 sleep_time = MIN(sleep_time, MAX_LDAP_REPLICATION_SLEEP_TIME);
1366
1367 if (sleep_time > 0) {
1368 /* we wait for the LDAP replication */
1369 DEBUG(5,("smbldap_search_ext: waiting %d milliseconds "
1370 "for LDAP replication.\n",sleep_time));
1371 smb_msleep(sleep_time);
1372 DEBUG(5,("smbldap_search_ext: go on!\n"));
1373 }
1374 ZERO_STRUCT(ldap_state->last_rebind);
1375 }
1376
1377 if (!push_utf8_allocate(&utf8_filter, filter, &converted_size)) {
1378 return LDAP_NO_MEMORY;
1379 }
1380
1381 /* Setup timeout for the ldap_search_ext_s call - local and remote. */
1382 timeout.tv_sec = lp_ldap_timeout();
1383 timeout.tv_usec = 0;
1384
1385 /* Setup alarm timeout.... Do we need both of these ? JRA.
1386 * Yes, I think we do need both of these. The server timeout only
1387 * covers the case where the server's operation takes too long. It
1388 * does not cover the case where the request hangs on its way to the
1389 * server. The server side timeout is not strictly necessary, it's
1390 * just a bit more kind to the server. VL. */
1391
1392 got_alarm = 0;
1393 CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
1394 alarm(lp_ldap_timeout());
1395 /* End setup timeout. */
1396
1397 while (another_ldap_try(ldap_state, &rc, &attempts, endtime)) {
1398 rc = ldap_search_ext_s(ldap_state->ldap_struct, base, scope,
1399 utf8_filter,
1400 CONST_DISCARD(char **, attrs),
1401 attrsonly, sctrls, cctrls, &timeout,
1402 sizelimit, res);
1403 if (rc != LDAP_SUCCESS) {
1404 char *ld_error = NULL;
1405 int ld_errno;
1406
1407 ldap_get_option(ldap_state->ldap_struct,
1408 LDAP_OPT_ERROR_NUMBER, &ld_errno);
1409
1410 ldap_get_option(ldap_state->ldap_struct,
1411 LDAP_OPT_ERROR_STRING, &ld_error);
1412 DEBUG(10, ("Failed search for base: %s, error: %d (%s) "
1413 "(%s)\n", base, ld_errno,
1414 ldap_err2string(rc),
1415 ld_error ? ld_error : "unknown"));
1416 SAFE_FREE(ld_error);
1417
1418 if (ld_errno == LDAP_SERVER_DOWN) {
1419 ldap_unbind(ldap_state->ldap_struct);
1420 ldap_state->ldap_struct = NULL;
1421 }
1422 }
1423 }
1424
1425 SAFE_FREE(utf8_filter);
1426
1427 /* Teardown timeout. */
1428 CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
1429 alarm(0);
1430
1431 if (got_alarm != 0)
1432 return LDAP_TIMELIMIT_EXCEEDED;
1433
1434 return rc;
1435}
1436
1437int smbldap_search(struct smbldap_state *ldap_state,
1438 const char *base, int scope, const char *filter,
1439 const char *attrs[], int attrsonly,
1440 LDAPMessage **res)
1441{
1442 return smbldap_search_ext(ldap_state, base, scope, filter, attrs,
1443 attrsonly, NULL, NULL, LDAP_NO_LIMIT, res);
1444}
1445
1446int smbldap_search_paged(struct smbldap_state *ldap_state,
1447 const char *base, int scope, const char *filter,
1448 const char **attrs, int attrsonly, int pagesize,
1449 LDAPMessage **res, void **cookie)
1450{
1451 LDAPControl pr;
1452 LDAPControl **rcontrols;
1453 LDAPControl *controls[2] = { NULL, NULL};
1454 BerElement *cookie_be = NULL;
1455 struct berval *cookie_bv = NULL;
1456 int tmp = 0, i, rc;
1457 bool critical = True;
1458
1459 *res = NULL;
1460
1461 DEBUG(3,("smbldap_search_paged: base => [%s], filter => [%s],"
1462 "scope => [%d], pagesize => [%d]\n",
1463 base, filter, scope, pagesize));
1464
1465 cookie_be = ber_alloc_t(LBER_USE_DER);
1466 if (cookie_be == NULL) {
1467 DEBUG(0,("smbldap_create_page_control: ber_alloc_t returns "
1468 "NULL\n"));
1469 return LDAP_NO_MEMORY;
1470 }
1471
1472 /* construct cookie */
1473 if (*cookie != NULL) {
1474 ber_printf(cookie_be, "{iO}", (ber_int_t) pagesize, *cookie);
1475 ber_bvfree((struct berval *)*cookie); /* don't need it from last time */
1476 *cookie = NULL;
1477 } else {
1478 ber_printf(cookie_be, "{io}", (ber_int_t) pagesize, "", 0);
1479 }
1480 ber_flatten(cookie_be, &cookie_bv);
1481
1482 pr.ldctl_oid = CONST_DISCARD(char *, ADS_PAGE_CTL_OID);
1483 pr.ldctl_iscritical = (char) critical;
1484 pr.ldctl_value.bv_len = cookie_bv->bv_len;
1485 pr.ldctl_value.bv_val = cookie_bv->bv_val;
1486
1487 controls[0] = &pr;
1488 controls[1] = NULL;
1489
1490 rc = smbldap_search_ext(ldap_state, base, scope, filter, attrs,
1491 0, controls, NULL, LDAP_NO_LIMIT, res);
1492
1493 ber_free(cookie_be, 1);
1494 ber_bvfree(cookie_bv);
1495
1496 if (rc != 0) {
1497 DEBUG(3,("smbldap_search_paged: smbldap_search_ext(%s) "
1498 "failed with [%s]\n", filter, ldap_err2string(rc)));
1499 goto done;
1500 }
1501
1502 DEBUG(3,("smbldap_search_paged: search was successful\n"));
1503
1504 rc = ldap_parse_result(ldap_state->ldap_struct, *res, NULL, NULL,
1505 NULL, NULL, &rcontrols, 0);
1506 if (rc != 0) {
1507 DEBUG(3,("smbldap_search_paged: ldap_parse_result failed " \
1508 "with [%s]\n", ldap_err2string(rc)));
1509 goto done;
1510 }
1511
1512 if (rcontrols == NULL)
1513 goto done;
1514
1515 for (i=0; rcontrols[i]; i++) {
1516
1517 if (strcmp(ADS_PAGE_CTL_OID, rcontrols[i]->ldctl_oid) != 0)
1518 continue;
1519
1520 cookie_be = ber_init(&rcontrols[i]->ldctl_value);
1521 ber_scanf(cookie_be,"{iO}", &tmp, &cookie_bv);
1522 /* the berval is the cookie, but must be freed when it is all
1523 done */
1524 if (cookie_bv->bv_len)
1525 *cookie=ber_bvdup(cookie_bv);
1526 else
1527 *cookie=NULL;
1528 ber_bvfree(cookie_bv);
1529 ber_free(cookie_be, 1);
1530 break;
1531 }
1532 ldap_controls_free(rcontrols);
1533done:
1534 return rc;
1535}
1536
1537int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
1538{
1539 int rc = LDAP_SERVER_DOWN;
1540 int attempts = 0;
1541 char *utf8_dn;
1542 time_t endtime = time(NULL)+lp_ldap_timeout();
1543 size_t converted_size;
1544
1545 SMB_ASSERT(ldap_state);
1546
1547 DEBUG(5,("smbldap_modify: dn => [%s]\n", dn ));
1548
1549 if (!push_utf8_allocate(&utf8_dn, dn, &converted_size)) {
1550 return LDAP_NO_MEMORY;
1551 }
1552
1553 while (another_ldap_try(ldap_state, &rc, &attempts, endtime)) {
1554 rc = ldap_modify_s(ldap_state->ldap_struct, utf8_dn, attrs);
1555 if (rc != LDAP_SUCCESS) {
1556 char *ld_error = NULL;
1557 int ld_errno;
1558
1559 ldap_get_option(ldap_state->ldap_struct,
1560 LDAP_OPT_ERROR_NUMBER, &ld_errno);
1561
1562 ldap_get_option(ldap_state->ldap_struct,
1563 LDAP_OPT_ERROR_STRING, &ld_error);
1564 DEBUG(10, ("Failed to modify dn: %s, error: %d (%s) "
1565 "(%s)\n", dn, ld_errno,
1566 ldap_err2string(rc),
1567 ld_error ? ld_error : "unknown"));
1568 SAFE_FREE(ld_error);
1569
1570 if (ld_errno == LDAP_SERVER_DOWN) {
1571 ldap_unbind(ldap_state->ldap_struct);
1572 ldap_state->ldap_struct = NULL;
1573 }
1574 }
1575 }
1576
1577 SAFE_FREE(utf8_dn);
1578 return rc;
1579}
1580
1581int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[])
1582{
1583 int rc = LDAP_SERVER_DOWN;
1584 int attempts = 0;
1585 char *utf8_dn;
1586 time_t endtime = time(NULL)+lp_ldap_timeout();
1587 size_t converted_size;
1588
1589 SMB_ASSERT(ldap_state);
1590
1591 DEBUG(5,("smbldap_add: dn => [%s]\n", dn ));
1592
1593 if (!push_utf8_allocate(&utf8_dn, dn, &converted_size)) {
1594 return LDAP_NO_MEMORY;
1595 }
1596
1597 while (another_ldap_try(ldap_state, &rc, &attempts, endtime)) {
1598 rc = ldap_add_s(ldap_state->ldap_struct, utf8_dn, attrs);
1599 if (rc != LDAP_SUCCESS) {
1600 char *ld_error = NULL;
1601 int ld_errno;
1602
1603 ldap_get_option(ldap_state->ldap_struct,
1604 LDAP_OPT_ERROR_NUMBER, &ld_errno);
1605
1606 ldap_get_option(ldap_state->ldap_struct,
1607 LDAP_OPT_ERROR_STRING, &ld_error);
1608 DEBUG(10, ("Failed to add dn: %s, error: %d (%s) "
1609 "(%s)\n", dn, ld_errno,
1610 ldap_err2string(rc),
1611 ld_error ? ld_error : "unknown"));
1612 SAFE_FREE(ld_error);
1613
1614 if (ld_errno == LDAP_SERVER_DOWN) {
1615 ldap_unbind(ldap_state->ldap_struct);
1616 ldap_state->ldap_struct = NULL;
1617 }
1618 }
1619 }
1620
1621 SAFE_FREE(utf8_dn);
1622 return rc;
1623}
1624
1625int smbldap_delete(struct smbldap_state *ldap_state, const char *dn)
1626{
1627 int rc = LDAP_SERVER_DOWN;
1628 int attempts = 0;
1629 char *utf8_dn;
1630 time_t endtime = time(NULL)+lp_ldap_timeout();
1631 size_t converted_size;
1632
1633 SMB_ASSERT(ldap_state);
1634
1635 DEBUG(5,("smbldap_delete: dn => [%s]\n", dn ));
1636
1637 if (!push_utf8_allocate(&utf8_dn, dn, &converted_size)) {
1638 return LDAP_NO_MEMORY;
1639 }
1640
1641 while (another_ldap_try(ldap_state, &rc, &attempts, endtime)) {
1642 rc = ldap_delete_s(ldap_state->ldap_struct, utf8_dn);
1643 if (rc != LDAP_SUCCESS) {
1644 char *ld_error = NULL;
1645 int ld_errno;
1646
1647 ldap_get_option(ldap_state->ldap_struct,
1648 LDAP_OPT_ERROR_NUMBER, &ld_errno);
1649
1650 ldap_get_option(ldap_state->ldap_struct,
1651 LDAP_OPT_ERROR_STRING, &ld_error);
1652 DEBUG(10, ("Failed to delete dn: %s, error: %d (%s) "
1653 "(%s)\n", dn, ld_errno,
1654 ldap_err2string(rc),
1655 ld_error ? ld_error : "unknown"));
1656 SAFE_FREE(ld_error);
1657
1658 if (ld_errno == LDAP_SERVER_DOWN) {
1659 ldap_unbind(ldap_state->ldap_struct);
1660 ldap_state->ldap_struct = NULL;
1661 }
1662 }
1663 }
1664
1665 SAFE_FREE(utf8_dn);
1666 return rc;
1667}
1668
1669int smbldap_extended_operation(struct smbldap_state *ldap_state,
1670 LDAP_CONST char *reqoid, struct berval *reqdata,
1671 LDAPControl **serverctrls, LDAPControl **clientctrls,
1672 char **retoidp, struct berval **retdatap)
1673{
1674 int rc = LDAP_SERVER_DOWN;
1675 int attempts = 0;
1676 time_t endtime = time(NULL)+lp_ldap_timeout();
1677
1678 if (!ldap_state)
1679 return (-1);
1680
1681 while (another_ldap_try(ldap_state, &rc, &attempts, endtime)) {
1682 rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid,
1683 reqdata, serverctrls,
1684 clientctrls, retoidp, retdatap);
1685 if (rc != LDAP_SUCCESS) {
1686 char *ld_error = NULL;
1687 int ld_errno;
1688
1689 ldap_get_option(ldap_state->ldap_struct,
1690 LDAP_OPT_ERROR_NUMBER, &ld_errno);
1691
1692 ldap_get_option(ldap_state->ldap_struct,
1693 LDAP_OPT_ERROR_STRING, &ld_error);
1694 DEBUG(10, ("Extended operation failed with error: "
1695 "%d (%s) (%s)\n", ld_errno,
1696 ldap_err2string(rc),
1697 ld_error ? ld_error : "unknown"));
1698 SAFE_FREE(ld_error);
1699
1700 if (ld_errno == LDAP_SERVER_DOWN) {
1701 ldap_unbind(ldap_state->ldap_struct);
1702 ldap_state->ldap_struct = NULL;
1703 }
1704 }
1705 }
1706
1707 return rc;
1708}
1709
1710/*******************************************************************
1711 run the search by name.
1712******************************************************************/
1713int smbldap_search_suffix (struct smbldap_state *ldap_state,
1714 const char *filter, const char **search_attr,
1715 LDAPMessage ** result)
1716{
1717 return smbldap_search(ldap_state, lp_ldap_suffix(), LDAP_SCOPE_SUBTREE,
1718 filter, search_attr, 0, result);
1719}
1720
1721static void smbldap_idle_fn(struct event_context *event_ctx,
1722 struct timed_event *te,
1723 struct timeval now,
1724 void *private_data)
1725{
1726 struct smbldap_state *state = (struct smbldap_state *)private_data;
1727
1728 TALLOC_FREE(state->idle_event);
1729
1730 if (state->ldap_struct == NULL) {
1731 DEBUG(10,("ldap connection not connected...\n"));
1732 return;
1733 }
1734
1735 if ((state->last_use+SMBLDAP_IDLE_TIME) > now.tv_sec) {
1736 DEBUG(10,("ldap connection not idle...\n"));
1737
1738 state->idle_event = event_add_timed(
1739 event_ctx, NULL,
1740 timeval_add(&now, SMBLDAP_IDLE_TIME, 0),
1741 smbldap_idle_fn,
1742 private_data);
1743 return;
1744 }
1745
1746 DEBUG(7,("ldap connection idle...closing connection\n"));
1747 smbldap_close(state);
1748}
1749
1750/**********************************************************************
1751 Housekeeping
1752 *********************************************************************/
1753
1754void smbldap_free_struct(struct smbldap_state **ldap_state)
1755{
1756 smbldap_close(*ldap_state);
1757
1758 if ((*ldap_state)->bind_secret) {
1759 memset((*ldap_state)->bind_secret, '\0', strlen((*ldap_state)->bind_secret));
1760 }
1761
1762 SAFE_FREE((*ldap_state)->bind_dn);
1763 SAFE_FREE((*ldap_state)->bind_secret);
1764
1765 TALLOC_FREE((*ldap_state)->idle_event);
1766
1767 *ldap_state = NULL;
1768
1769 /* No need to free any further, as it is talloc()ed */
1770}
1771
1772
1773/**********************************************************************
1774 Intitalise the 'general' ldap structures, on which ldap operations may be conducted
1775 *********************************************************************/
1776
1777NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, struct event_context *event_ctx,
1778 const char *location,
1779 struct smbldap_state **smbldap_state)
1780{
1781 *smbldap_state = TALLOC_ZERO_P(mem_ctx, struct smbldap_state);
1782 if (!*smbldap_state) {
1783 DEBUG(0, ("talloc() failed for ldapsam private_data!\n"));
1784 return NT_STATUS_NO_MEMORY;
1785 }
1786
1787 if (location) {
1788 (*smbldap_state)->uri = talloc_strdup(mem_ctx, location);
1789 } else {
1790 (*smbldap_state)->uri = "ldap://localhost";
1791 }
1792
1793 (*smbldap_state)->event_context = event_ctx;
1794
1795 return NT_STATUS_OK;
1796}
1797
1798/*******************************************************************
1799 Return a copy of the DN for a LDAPMessage. Convert from utf8 to CH_UNIX.
1800********************************************************************/
1801char *smbldap_get_dn(LDAP *ld, LDAPMessage *entry)
1802{
1803 char *utf8_dn, *unix_dn;
1804 size_t converted_size;
1805
1806 utf8_dn = ldap_get_dn(ld, entry);
1807 if (!utf8_dn) {
1808 DEBUG (5, ("smbldap_get_dn: ldap_get_dn failed\n"));
1809 return NULL;
1810 }
1811 if (!pull_utf8_allocate(&unix_dn, utf8_dn, &converted_size)) {
1812 DEBUG (0, ("smbldap_get_dn: String conversion failure utf8 "
1813 "[%s]\n", utf8_dn));
1814 return NULL;
1815 }
1816 ldap_memfree(utf8_dn);
1817 return unix_dn;
1818}
1819
1820 const char *smbldap_talloc_dn(TALLOC_CTX *mem_ctx, LDAP *ld,
1821 LDAPMessage *entry)
1822{
1823 char *utf8_dn, *unix_dn;
1824 size_t converted_size;
1825
1826 utf8_dn = ldap_get_dn(ld, entry);
1827 if (!utf8_dn) {
1828 DEBUG (5, ("smbldap_get_dn: ldap_get_dn failed\n"));
1829 return NULL;
1830 }
1831 if (!pull_utf8_talloc(mem_ctx, &unix_dn, utf8_dn, &converted_size)) {
1832 DEBUG (0, ("smbldap_get_dn: String conversion failure utf8 "
1833 "[%s]\n", utf8_dn));
1834 return NULL;
1835 }
1836 ldap_memfree(utf8_dn);
1837 return unix_dn;
1838}
1839
1840/*******************************************************************
1841 Check if root-dse has a certain Control or Extension
1842********************************************************************/
1843
1844static bool smbldap_check_root_dse(LDAP *ld, const char **attrs, const char *value)
1845{
1846 LDAPMessage *msg = NULL;
1847 LDAPMessage *entry = NULL;
1848 char **values = NULL;
1849 int rc, num_result, num_values, i;
1850 bool result = False;
1851
1852 if (!attrs[0]) {
1853 DEBUG(3,("smbldap_check_root_dse: nothing to look for\n"));
1854 return False;
1855 }
1856
1857 if (!strequal(attrs[0], "supportedExtension") &&
1858 !strequal(attrs[0], "supportedControl") &&
1859 !strequal(attrs[0], "namingContexts")) {
1860 DEBUG(3,("smbldap_check_root_dse: no idea what to query root-dse for: %s ?\n", attrs[0]));
1861 return False;
1862 }
1863
1864 rc = ldap_search_s(ld, "", LDAP_SCOPE_BASE,
1865 "(objectclass=*)", CONST_DISCARD(char **, attrs), 0 , &msg);
1866
1867 if (rc != LDAP_SUCCESS) {
1868 DEBUG(3,("smbldap_check_root_dse: Could not search rootDSE\n"));
1869 return False;
1870 }
1871
1872 num_result = ldap_count_entries(ld, msg);
1873
1874 if (num_result != 1) {
1875 DEBUG(3,("smbldap_check_root_dse: Expected one rootDSE, got %d\n", num_result));
1876 goto done;
1877 }
1878
1879 entry = ldap_first_entry(ld, msg);
1880
1881 if (entry == NULL) {
1882 DEBUG(3,("smbldap_check_root_dse: Could not retrieve rootDSE\n"));
1883 goto done;
1884 }
1885
1886 values = ldap_get_values(ld, entry, attrs[0]);
1887
1888 if (values == NULL) {
1889 DEBUG(5,("smbldap_check_root_dse: LDAP Server does not support any %s\n", attrs[0]));
1890 goto done;
1891 }
1892
1893 num_values = ldap_count_values(values);
1894
1895 if (num_values == 0) {
1896 DEBUG(5,("smbldap_check_root_dse: LDAP Server does not have any %s\n", attrs[0]));
1897 goto done;
1898 }
1899
1900 for (i=0; i<num_values; i++) {
1901 if (strcmp(values[i], value) == 0)
1902 result = True;
1903 }
1904
1905
1906 done:
1907 if (values != NULL)
1908 ldap_value_free(values);
1909 if (msg != NULL)
1910 ldap_msgfree(msg);
1911
1912 return result;
1913
1914}
1915
1916/*******************************************************************
1917 Check if LDAP-Server supports a certain Control (OID in string format)
1918********************************************************************/
1919
1920bool smbldap_has_control(LDAP *ld, const char *control)
1921{
1922 const char *attrs[] = { "supportedControl", NULL };
1923 return smbldap_check_root_dse(ld, attrs, control);
1924}
1925
1926/*******************************************************************
1927 Check if LDAP-Server supports a certain Extension (OID in string format)
1928********************************************************************/
1929
1930bool smbldap_has_extension(LDAP *ld, const char *extension)
1931{
1932 const char *attrs[] = { "supportedExtension", NULL };
1933 return smbldap_check_root_dse(ld, attrs, extension);
1934}
1935
1936/*******************************************************************
1937 Check if LDAP-Server holds a given namingContext
1938********************************************************************/
1939
1940bool smbldap_has_naming_context(LDAP *ld, const char *naming_context)
1941{
1942 const char *attrs[] = { "namingContexts", NULL };
1943 return smbldap_check_root_dse(ld, attrs, naming_context);
1944}
1945
1946bool smbldap_set_creds(struct smbldap_state *ldap_state, bool anon, const char *dn, const char *secret)
1947{
1948 ldap_state->anonymous = anon;
1949
1950 /* free any previously set credential */
1951
1952 SAFE_FREE(ldap_state->bind_dn);
1953 if (ldap_state->bind_secret) {
1954 /* make sure secrets are zeroed out of memory */
1955 memset(ldap_state->bind_secret, '\0', strlen(ldap_state->bind_secret));
1956 SAFE_FREE(ldap_state->bind_secret);
1957 }
1958
1959 if ( ! anon) {
1960 ldap_state->bind_dn = SMB_STRDUP(dn);
1961 ldap_state->bind_secret = SMB_STRDUP(secret);
1962 }
1963
1964 return True;
1965}
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