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source: vendor/3.6.9/source3/passdb/pdb_nds.c

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Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago
Samba Server: update vendor to 3.6.0
File size: 23.6 KB

Line
1	/*
2	Unix SMB/CIFS mplementation.
3	NDS LDAP helper functions for SAMBA
4	Copyright (C) Vince Brimhall 2004-2005
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 3 of the License, or
9	(at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program. If not, see <http://www.gnu.org/licenses/>.
18
19	*/
20
21	#include "includes.h"
22	#include "passdb.h"
23
24	#include <lber.h>
25	#include <ldap.h>
26	#include <wchar.h>
27
28	#include "smbldap.h"
29
30	#define NMASLDAP_GET_LOGIN_CONFIG_REQUEST "2.16.840.1.113719.1.39.42.100.3"
31	#define NMASLDAP_GET_LOGIN_CONFIG_RESPONSE "2.16.840.1.113719.1.39.42.100.4"
32	#define NMASLDAP_SET_PASSWORD_REQUEST "2.16.840.1.113719.1.39.42.100.11"
33	#define NMASLDAP_SET_PASSWORD_RESPONSE "2.16.840.1.113719.1.39.42.100.12"
34	#define NMASLDAP_GET_PASSWORD_REQUEST "2.16.840.1.113719.1.39.42.100.13"
35	#define NMASLDAP_GET_PASSWORD_RESPONSE "2.16.840.1.113719.1.39.42.100.14"
36
37	#define NMAS_LDAP_EXT_VERSION 1
38
39	/**********************************************************************
40	Take the request BER value and input data items and BER encodes the
41	data into the BER value
42	**********************************************************************/
43
44	static int berEncodePasswordData(
45	struct berval **requestBV,
46	const char *objectDN,
47	const char *password,
48	const char *password2)
49	{
50	int err = 0, rc=0;
51	BerElement *requestBer = NULL;
52
53	const char * utf8ObjPtr = NULL;
54	int utf8ObjSize = 0;
55	const char * utf8PwdPtr = NULL;
56	int utf8PwdSize = 0;
57	const char * utf8Pwd2Ptr = NULL;
58	int utf8Pwd2Size = 0;
59
60
61	/* Convert objectDN and tag strings from Unicode to UTF-8 */
62	utf8ObjSize = strlen(objectDN)+1;
63	utf8ObjPtr = objectDN;
64
65	if (password != NULL)
66	{
67	utf8PwdSize = strlen(password)+1;
68	utf8PwdPtr = password;
69	}
70
71	if (password2 != NULL)
72	{
73	utf8Pwd2Size = strlen(password2)+1;
74	utf8Pwd2Ptr = password2;
75	}
76
77	/* Allocate a BerElement for the request parameters. */
78	if((requestBer = ber_alloc()) == NULL)
79	{
80	err = LDAP_ENCODING_ERROR;
81	goto Cleanup;
82	}
83
84	if (password != NULL && password2 != NULL)
85	{
86	/* BER encode the NMAS Version, the objectDN, and the password */
87	rc = ber_printf(requestBer, "{iooo}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize, utf8PwdPtr, utf8PwdSize, utf8Pwd2Ptr, utf8Pwd2Size);
88	}
89	else if (password != NULL)
90	{
91	/* BER encode the NMAS Version, the objectDN, and the password */
92	rc = ber_printf(requestBer, "{ioo}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize, utf8PwdPtr, utf8PwdSize);
93	}
94	else
95	{
96	/* BER encode the NMAS Version and the objectDN */
97	rc = ber_printf(requestBer, "{io}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize);
98	}
99
100	if (rc < 0)
101	{
102	err = LDAP_ENCODING_ERROR;
103	goto Cleanup;
104	}
105	else
106	{
107	err = 0;
108	}
109
110	/* Convert the BER we just built to a berval that we'll send with the extended request. */
111	if(ber_flatten(requestBer, requestBV) == LBER_ERROR)
112	{
113	err = LDAP_ENCODING_ERROR;
114	goto Cleanup;
115	}
116
117	Cleanup:
118
119	if(requestBer)
120	{
121	ber_free(requestBer, 1);
122	}
123
124	return err;
125	}
126
127	/**********************************************************************
128	Take the request BER value and input data items and BER encodes the
129	data into the BER value
130	**********************************************************************/
131
132	static int berEncodeLoginData(
133	struct berval **requestBV,
134	char *objectDN,
135	unsigned int methodIDLen,
136	unsigned int *methodID,
137	char *tag,
138	size_t putDataLen,
139	void *putData)
140	{
141	int err = 0;
142	BerElement *requestBer = NULL;
143
144	unsigned int i;
145	unsigned int elemCnt = methodIDLen / sizeof(unsigned int);
146
147	char *utf8ObjPtr=NULL;
148	int utf8ObjSize = 0;
149
150	char *utf8TagPtr = NULL;
151	int utf8TagSize = 0;
152
153	utf8ObjPtr = objectDN;
154	utf8ObjSize = strlen(utf8ObjPtr)+1;
155
156	utf8TagPtr = tag;
157	utf8TagSize = strlen(utf8TagPtr)+1;
158
159	/* Allocate a BerElement for the request parameters. */
160	if((requestBer = ber_alloc()) == NULL)
161	{
162	err = LDAP_ENCODING_ERROR;
163	goto Cleanup;
164	}
165
166	/* BER encode the NMAS Version and the objectDN */
167	err = (ber_printf(requestBer, "{io", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize) < 0) ? LDAP_ENCODING_ERROR : 0;
168
169	/* BER encode the MethodID Length and value */
170	if (!err)
171	{
172	err = (ber_printf(requestBer, "{i{", methodIDLen) < 0) ? LDAP_ENCODING_ERROR : 0;
173	}
174
175	for (i = 0; !err && i < elemCnt; i++)
176	{
177	err = (ber_printf(requestBer, "i", methodID[i]) < 0) ? LDAP_ENCODING_ERROR : 0;
178	}
179
180	if (!err)
181	{
182	err = (ber_printf(requestBer, "}}", 0) < 0) ? LDAP_ENCODING_ERROR : 0;
183	}
184
185	if(putData)
186	{
187	/* BER Encode the the tag and data */
188	err = (ber_printf(requestBer, "oio}", utf8TagPtr, utf8TagSize, putDataLen, putData, putDataLen) < 0) ? LDAP_ENCODING_ERROR : 0;
189	}
190	else
191	{
192	/* BER Encode the the tag */
193	err = (ber_printf(requestBer, "o}", utf8TagPtr, utf8TagSize) < 0) ? LDAP_ENCODING_ERROR : 0;
194	}
195
196	if (err)
197	{
198	goto Cleanup;
199	}
200
201	/* Convert the BER we just built to a berval that we'll send with the extended request. */
202	if(ber_flatten(requestBer, requestBV) == LBER_ERROR)
203	{
204	err = LDAP_ENCODING_ERROR;
205	goto Cleanup;
206	}
207
208	Cleanup:
209
210	if(requestBer)
211	{
212	ber_free(requestBer, 1);
213	}
214
215	return err;
216	}
217
218	/**********************************************************************
219	Takes the reply BER Value and decodes the NMAS server version and
220	return code and if a non null retData buffer was supplied, tries to
221	decode the the return data and length
222	**********************************************************************/
223
224	static int berDecodeLoginData(
225	struct berval *replyBV,
226	int *serverVersion,
227	size_t *retDataLen,
228	void *retData )
229	{
230	int err = 0;
231	BerElement *replyBer = NULL;
232	char *retOctStr = NULL;
233	size_t retOctStrLen = 0;
234
235	if((replyBer = ber_init(replyBV)) == NULL)
236	{
237	err = LDAP_OPERATIONS_ERROR;
238	goto Cleanup;
239	}
240
241	if(retData)
242	{
243	retOctStrLen = *retDataLen + 1;
244	retOctStr = SMB_MALLOC_ARRAY(char, retOctStrLen);
245	if(!retOctStr)
246	{
247	err = LDAP_OPERATIONS_ERROR;
248	goto Cleanup;
249	}
250
251	if(ber_scanf(replyBer, "{iis}", serverVersion, &err, retOctStr, &retOctStrLen) != -1)
252	{
253	if (*retDataLen >= retOctStrLen)
254	{
255	memcpy(retData, retOctStr, retOctStrLen);
256	}
257	else if (!err)
258	{
259	err = LDAP_NO_MEMORY;
260	}
261
262	*retDataLen = retOctStrLen;
263	}
264	else if (!err)
265	{
266	err = LDAP_DECODING_ERROR;
267	}
268	}
269	else
270	{
271	if(ber_scanf(replyBer, "{ii}", serverVersion, &err) == -1)
272	{
273	if (!err)
274	{
275	err = LDAP_DECODING_ERROR;
276	}
277	}
278	}
279
280	Cleanup:
281
282	if(replyBer)
283	{
284	ber_free(replyBer, 1);
285	}
286
287	if (retOctStr != NULL)
288	{
289	memset(retOctStr, 0, retOctStrLen);
290	free(retOctStr);
291	}
292
293	return err;
294	}
295
296	/**********************************************************************
297	Retrieves data in the login configuration of the specified object
298	that is tagged with the specified methodID and tag.
299	**********************************************************************/
300
301	static int getLoginConfig(
302	LDAP *ld,
303	char *objectDN,
304	unsigned int methodIDLen,
305	unsigned int *methodID,
306	char *tag,
307	size_t *dataLen,
308	void *data )
309	{
310	int err = 0;
311	struct berval *requestBV = NULL;
312	char *replyOID = NULL;
313	struct berval *replyBV = NULL;
314	int serverVersion = 0;
315
316	/* Validate unicode parameters. */
317	if((strlen(objectDN) == 0) \|\| ld == NULL)
318	{
319	return LDAP_NO_SUCH_ATTRIBUTE;
320	}
321
322	err = berEncodeLoginData(&requestBV, objectDN, methodIDLen, methodID, tag, 0, NULL);
323	if(err)
324	{
325	goto Cleanup;
326	}
327
328	/* Call the ldap_extended_operation (synchronously) */
329	if((err = ldap_extended_operation_s(ld, NMASLDAP_GET_LOGIN_CONFIG_REQUEST,
330	requestBV, NULL, NULL, &replyOID, &replyBV)))
331	{
332	goto Cleanup;
333	}
334
335	/* Make sure there is a return OID */
336	if(!replyOID)
337	{
338	err = LDAP_NOT_SUPPORTED;
339	goto Cleanup;
340	}
341
342	/* Is this what we were expecting to get back. */
343	if(strcmp(replyOID, NMASLDAP_GET_LOGIN_CONFIG_RESPONSE))
344	{
345	err = LDAP_NOT_SUPPORTED;
346	goto Cleanup;
347	}
348
349	/* Do we have a good returned berval? */
350	if(!replyBV)
351	{
352	/* No; returned berval means we experienced a rather drastic error. */
353	/* Return operations error. */
354	err = LDAP_OPERATIONS_ERROR;
355	goto Cleanup;
356	}
357
358	err = berDecodeLoginData(replyBV, &serverVersion, dataLen, data);
359
360	if(serverVersion != NMAS_LDAP_EXT_VERSION)
361	{
362	err = LDAP_OPERATIONS_ERROR;
363	goto Cleanup;
364	}
365
366	Cleanup:
367
368	if(replyBV)
369	{
370	ber_bvfree(replyBV);
371	}
372
373	/* Free the return OID string if one was returned. */
374	if(replyOID)
375	{
376	ldap_memfree(replyOID);
377	}
378
379	/* Free memory allocated while building the request ber and berval. */
380	if(requestBV)
381	{
382	ber_bvfree(requestBV);
383	}
384
385	/* Return the appropriate error/success code. */
386	return err;
387	}
388
389	/**********************************************************************
390	Attempts to get the Simple Password
391	**********************************************************************/
392
393	static int nmasldap_get_simple_pwd(
394	LDAP *ld,
395	char *objectDN,
396	size_t pwdLen,
397	char *pwd )
398	{
399	int err = 0;
400	unsigned int methodID = 0;
401	unsigned int methodIDLen = sizeof(methodID);
402	char tag[] = {'P','A','S','S','W','O','R','D',' ','H','A','S','H',0};
403	char *pwdBuf=NULL;
404	size_t pwdBufLen, bufferLen;
405
406	bufferLen = pwdBufLen = pwdLen+2;
407	pwdBuf = SMB_MALLOC_ARRAY(char, pwdBufLen); /* digest and null */
408	if(pwdBuf == NULL)
409	{
410	return LDAP_NO_MEMORY;
411	}
412
413	err = getLoginConfig(ld, objectDN, methodIDLen, &methodID, tag, &pwdBufLen, pwdBuf);
414	if (err == 0)
415	{
416	if (pwdBufLen !=0)
417	{
418	pwdBuf[pwdBufLen] = 0; /* null terminate */
419
420	switch (pwdBuf[0])
421	{
422	case 1: /* cleartext password */
423	break;
424	case 2: /* SHA1 HASH */
425	case 3: /* MD5_ID */
426	case 4: /* UNIXCrypt_ID */
427	case 8: /* SSHA_ID */
428	default: /* Unknown digest */
429	err = LDAP_INAPPROPRIATE_AUTH; /* only return clear text */
430	break;
431	}
432
433	if (!err)
434	{
435	if (pwdLen >= pwdBufLen-1)
436	{
437	memcpy(pwd, &pwdBuf[1], pwdBufLen-1); /* skip digest tag and include null */
438	}
439	else
440	{
441	err = LDAP_NO_MEMORY;
442	}
443	}
444	}
445	}
446
447	if (pwdBuf != NULL)
448	{
449	memset(pwdBuf, 0, bufferLen);
450	free(pwdBuf);
451	}
452
453	return err;
454	}
455
456
457	/**********************************************************************
458	Attempts to set the Universal Password
459	**********************************************************************/
460
461	static int nmasldap_set_password(
462	LDAP *ld,
463	const char *objectDN,
464	const char *pwd )
465	{
466	int err = 0;
467
468	struct berval *requestBV = NULL;
469	char *replyOID = NULL;
470	struct berval *replyBV = NULL;
471	int serverVersion;
472
473	/* Validate char parameters. */
474	if(objectDN == NULL \|\| (strlen(objectDN) == 0) \|\| pwd == NULL \|\| ld == NULL)
475	{
476	return LDAP_NO_SUCH_ATTRIBUTE;
477	}
478
479	err = berEncodePasswordData(&requestBV, objectDN, pwd, NULL);
480	if(err)
481	{
482	goto Cleanup;
483	}
484
485	/* Call the ldap_extended_operation (synchronously) */
486	if((err = ldap_extended_operation_s(ld, NMASLDAP_SET_PASSWORD_REQUEST, requestBV, NULL, NULL, &replyOID, &replyBV)))
487	{
488	goto Cleanup;
489	}
490
491	/* Make sure there is a return OID */
492	if(!replyOID)
493	{
494	err = LDAP_NOT_SUPPORTED;
495	goto Cleanup;
496	}
497
498	/* Is this what we were expecting to get back. */
499	if(strcmp(replyOID, NMASLDAP_SET_PASSWORD_RESPONSE))
500	{
501	err = LDAP_NOT_SUPPORTED;
502	goto Cleanup;
503	}
504
505	/* Do we have a good returned berval? */
506	if(!replyBV)
507	{
508	/* No; returned berval means we experienced a rather drastic error. */
509	/* Return operations error. */
510	err = LDAP_OPERATIONS_ERROR;
511	goto Cleanup;
512	}
513
514	err = berDecodeLoginData(replyBV, &serverVersion, NULL, NULL);
515
516	if(serverVersion != NMAS_LDAP_EXT_VERSION)
517	{
518	err = LDAP_OPERATIONS_ERROR;
519	goto Cleanup;
520	}
521
522	Cleanup:
523
524	if(replyBV)
525	{
526	ber_bvfree(replyBV);
527	}
528
529	/* Free the return OID string if one was returned. */
530	if(replyOID)
531	{
532	ldap_memfree(replyOID);
533	}
534
535	/* Free memory allocated while building the request ber and berval. */
536	if(requestBV)
537	{
538	ber_bvfree(requestBV);
539	}
540
541	/* Return the appropriate error/success code. */
542	return err;
543	}
544
545	/**********************************************************************
546	Attempts to get the Universal Password
547	**********************************************************************/
548
549	static int nmasldap_get_password(
550	LDAP *ld,
551	char *objectDN,
552	size_t pwdSize, / in bytes */
553	unsigned char *pwd )
554	{
555	int err = 0;
556
557	struct berval *requestBV = NULL;
558	char *replyOID = NULL;
559	struct berval *replyBV = NULL;
560	int serverVersion;
561	char *pwdBuf;
562	size_t pwdBufLen, bufferLen;
563
564	/* Validate char parameters. */
565	if(objectDN == NULL \|\| (strlen(objectDN) == 0) \|\| pwdSize == NULL \|\| ld == NULL)
566	{
567	return LDAP_NO_SUCH_ATTRIBUTE;
568	}
569
570	bufferLen = pwdBufLen = *pwdSize;
571	pwdBuf = SMB_MALLOC_ARRAY(char, pwdBufLen+2);
572	if(pwdBuf == NULL)
573	{
574	return LDAP_NO_MEMORY;
575	}
576
577	err = berEncodePasswordData(&requestBV, objectDN, NULL, NULL);
578	if(err)
579	{
580	goto Cleanup;
581	}
582
583	/* Call the ldap_extended_operation (synchronously) */
584	if((err = ldap_extended_operation_s(ld, NMASLDAP_GET_PASSWORD_REQUEST, requestBV, NULL, NULL, &replyOID, &replyBV)))
585	{
586	goto Cleanup;
587	}
588
589	/* Make sure there is a return OID */
590	if(!replyOID)
591	{
592	err = LDAP_NOT_SUPPORTED;
593	goto Cleanup;
594	}
595
596	/* Is this what we were expecting to get back. */
597	if(strcmp(replyOID, NMASLDAP_GET_PASSWORD_RESPONSE))
598	{
599	err = LDAP_NOT_SUPPORTED;
600	goto Cleanup;
601	}
602
603	/* Do we have a good returned berval? */
604	if(!replyBV)
605	{
606	/* No; returned berval means we experienced a rather drastic error. */
607	/* Return operations error. */
608	err = LDAP_OPERATIONS_ERROR;
609	goto Cleanup;
610	}
611
612	err = berDecodeLoginData(replyBV, &serverVersion, &pwdBufLen, pwdBuf);
613
614	if(serverVersion != NMAS_LDAP_EXT_VERSION)
615	{
616	err = LDAP_OPERATIONS_ERROR;
617	goto Cleanup;
618	}
619
620	if (!err && pwdBufLen != 0)
621	{
622	if (*pwdSize >= pwdBufLen+1 && pwd != NULL)
623	{
624	memcpy(pwd, pwdBuf, pwdBufLen);
625	pwd[pwdBufLen] = 0; /* add null termination */
626	}
627	pwdSize = pwdBufLen; / does not include null termination */
628	}
629
630	Cleanup:
631
632	if(replyBV)
633	{
634	ber_bvfree(replyBV);
635	}
636
637	/* Free the return OID string if one was returned. */
638	if(replyOID)
639	{
640	ldap_memfree(replyOID);
641	}
642
643	/* Free memory allocated while building the request ber and berval. */
644	if(requestBV)
645	{
646	ber_bvfree(requestBV);
647	}
648
649	if (pwdBuf != NULL)
650	{
651	memset(pwdBuf, 0, bufferLen);
652	free(pwdBuf);
653	}
654
655	/* Return the appropriate error/success code. */
656	return err;
657	}
658
659	/**********************************************************************
660	Get the user's password from NDS.
661	*********************************************************************/
662
663	int pdb_nds_get_password(
664	struct smbldap_state *ldap_state,
665	char *object_dn,
666	size_t *pwd_len,
667	char *pwd )
668	{
669	LDAP *ld = ldap_state->ldap_struct;
670	int rc = -1;
671
672	rc = nmasldap_get_password(ld, object_dn, pwd_len, (unsigned char *)pwd);
673	if (rc == LDAP_SUCCESS) {
674	#ifdef DEBUG_PASSWORD
675	DEBUG(100,("nmasldap_get_password returned %s for %s\n", pwd, object_dn));
676	#endif
677	DEBUG(5, ("NDS Universal Password retrieved for %s\n", object_dn));
678	} else {
679	DEBUG(3, ("NDS Universal Password NOT retrieved for %s\n", object_dn));
680	}
681
682	if (rc != LDAP_SUCCESS) {
683	rc = nmasldap_get_simple_pwd(ld, object_dn, *pwd_len, pwd);
684	if (rc == LDAP_SUCCESS) {
685	#ifdef DEBUG_PASSWORD
686	DEBUG(100,("nmasldap_get_simple_pwd returned %s for %s\n", pwd, object_dn));
687	#endif
688	DEBUG(5, ("NDS Simple Password retrieved for %s\n", object_dn));
689	} else {
690	/* We couldn't get the password */
691	DEBUG(3, ("NDS Simple Password NOT retrieved for %s\n", object_dn));
692	return LDAP_INVALID_CREDENTIALS;
693	}
694	}
695
696	/* We got the password */
697	return LDAP_SUCCESS;
698	}
699
700	/**********************************************************************
701	Set the users NDS, Universal and Simple passwords.
702	********************************************************************/
703
704	int pdb_nds_set_password(
705	struct smbldap_state *ldap_state,
706	char *object_dn,
707	const char *pwd )
708	{
709	LDAP *ld = ldap_state->ldap_struct;
710	int rc = -1;
711	LDAPMod **tmpmods = NULL;
712
713	rc = nmasldap_set_password(ld, object_dn, pwd);
714	if (rc == LDAP_SUCCESS) {
715	DEBUG(5,("NDS Universal Password changed for user %s\n", object_dn));
716	} else {
717	char *ld_error = NULL;
718	ldap_get_option(ld, LDAP_OPT_ERROR_STRING, &ld_error);
719
720	/* This will fail if Universal Password is not enabled for the user's context */
721	DEBUG(3,("NDS Universal Password could not be changed for user %s: %s (%s)\n",
722	object_dn, ldap_err2string(rc), ld_error?ld_error:"unknown"));
723	SAFE_FREE(ld_error);
724	}
725
726	/* Set eDirectory Password */
727	smbldap_set_mod(&tmpmods, LDAP_MOD_REPLACE, "userPassword", pwd);
728	rc = smbldap_modify(ldap_state, object_dn, tmpmods);
729
730	return rc;
731	}
732
733	/**********************************************************************
734	Allow ldap server to update internal login attempt counters by
735	performing a simple bind. If the samba authentication failed attempt
736	the bind with a bogus, randomly generated password to count the
737	failed attempt. If the bind fails even though samba authentication
738	succeeded, this would indicate that the user's account is disabled,
739	time restrictions are in place or some other password policy
740	violation.
741	*********************************************************************/
742
743	static NTSTATUS pdb_nds_update_login_attempts(struct pdb_methods *methods,
744	struct samu *sam_acct, bool success)
745	{
746	struct ldapsam_privates *ldap_state;
747
748	if ((!methods) \|\| (!sam_acct)) {
749	DEBUG(3,("pdb_nds_update_login_attempts: invalid parameter.\n"));
750	return NT_STATUS_MEMORY_NOT_ALLOCATED;
751	}
752
753	ldap_state = (struct ldapsam_privates *)methods->private_data;
754
755	if (ldap_state) {
756	/* Attempt simple bind with user credentials to update eDirectory
757	password policy */
758	int rc = 0;
759	char *dn;
760	LDAPMessage *result = NULL;
761	LDAPMessage *entry = NULL;
762	const char **attr_list;
763	size_t pwd_len;
764	char clear_text_pw[512];
765	LDAP *ld = NULL;
766	const char *username = pdb_get_username(sam_acct);
767	bool got_clear_text_pw = False;
768
769	DEBUG(5,("pdb_nds_update_login_attempts: %s login for %s\n",
770	success ? "Successful" : "Failed", username));
771
772	result = (LDAPMessage *)pdb_get_backend_private_data(sam_acct, methods);
773	if (!result) {
774	attr_list = get_userattr_list(NULL,
775	ldap_state->schema_ver);
776	rc = ldapsam_search_suffix_by_name(ldap_state, username, &result, attr_list );
777	TALLOC_FREE( attr_list );
778	if (rc != LDAP_SUCCESS) {
779	return NT_STATUS_OBJECT_NAME_NOT_FOUND;
780	}
781	pdb_set_backend_private_data(sam_acct, result, NULL,
782	methods, PDB_CHANGED);
783	talloc_autofree_ldapmsg(sam_acct, result);
784	}
785
786	if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
787	DEBUG(0, ("pdb_nds_update_login_attempts: No user to modify!\n"));
788	return NT_STATUS_OBJECT_NAME_NOT_FOUND;
789	}
790
791	entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
792	dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
793	if (!dn) {
794	return NT_STATUS_OBJECT_NAME_NOT_FOUND;
795	}
796
797	DEBUG(3, ("pdb_nds_update_login_attempts: username %s found dn '%s'\n", username, dn));
798
799	pwd_len = sizeof(clear_text_pw);
800	if (success == True) {
801	if (pdb_nds_get_password(ldap_state->smbldap_state, dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
802	/* Got clear text password. Use simple ldap bind */
803	got_clear_text_pw = True;
804	}
805	} else {
806	generate_random_buffer((unsigned char *)clear_text_pw, 24);
807	clear_text_pw[24] = '\0';
808	DEBUG(5,("pdb_nds_update_login_attempts: using random password %s\n", clear_text_pw));
809	}
810
811	if((success != True) \|\| (got_clear_text_pw == True)) {
812
813	rc = smb_ldap_setup_full_conn(&ld, ldap_state->location);
814	if (rc) {
815	TALLOC_FREE(dn);
816	return NT_STATUS_INVALID_CONNECTION;
817	}
818
819	/* Attempt simple bind with real or bogus password */
820	rc = ldap_simple_bind_s(ld, dn, clear_text_pw);
821	ldap_unbind(ld);
822	if (rc == LDAP_SUCCESS) {
823	DEBUG(5,("pdb_nds_update_login_attempts: ldap_simple_bind_s Successful for %s\n", username));
824	} else {
825	NTSTATUS nt_status = NT_STATUS_ACCOUNT_RESTRICTION;
826	DEBUG(5,("pdb_nds_update_login_attempts: ldap_simple_bind_s Failed for %s\n", username));
827	switch(rc) {
828	case LDAP_INVALID_CREDENTIALS:
829	nt_status = NT_STATUS_WRONG_PASSWORD;
830	break;
831	case LDAP_UNWILLING_TO_PERFORM:
832	/* eDir returns this if the account was disabled. */
833	/* The problem is we don't know if the given
834	password was correct for this account or
835	not. We have to return more info than we
836	should and tell the client NT_STATUS_ACCOUNT_DISABLED
837	so they don't think the password was bad. JRA. */
838	nt_status = NT_STATUS_ACCOUNT_DISABLED;
839	break;
840	default:
841	break;
842	}
843	return nt_status;
844	}
845	}
846	TALLOC_FREE(dn);
847	}
848
849	return NT_STATUS_OK;
850	}
851
852	/**********************************************************************
853	Intitalise the parts of the pdb_methods structuire that are common
854	to NDS_ldapsam modes
855	*********************************************************************/
856
857	static NTSTATUS pdb_init_NDS_ldapsam_common(struct pdb_methods *pdb_method, const char location)
858	{
859	struct ldapsam_privates *ldap_state =
860	(struct ldapsam_privates )((pdb_method)->private_data);
861
862	/* Mark this as eDirectory ldap */
863	ldap_state->is_nds_ldap = True;
864
865	/* Add pdb_nds specific method for updating login attempts. */
866	(*pdb_method)->update_login_attempts = pdb_nds_update_login_attempts;
867
868	/* Save location for use in pdb_nds_update_login_attempts */
869	ldap_state->location = SMB_STRDUP(location);
870
871	return NT_STATUS_OK;
872	}
873
874
875	/**********************************************************************
876	Initialise the 'nds compat' mode for pdb_ldap
877	*********************************************************************/
878
879	static NTSTATUS pdb_init_NDS_ldapsam_compat(struct pdb_methods *pdb_method, const char location)
880	{
881	NTSTATUS nt_status = pdb_init_ldapsam_compat(pdb_method, location);
882
883	(*pdb_method)->name = "NDS_ldapsam_compat";
884
885	pdb_init_NDS_ldapsam_common(pdb_method, location);
886
887	return nt_status;
888	}
889
890
891	/**********************************************************************
892	Initialise the 'nds' normal mode for pdb_ldap
893	*********************************************************************/
894
895	static NTSTATUS pdb_init_NDS_ldapsam(struct pdb_methods *pdb_method, const char location)
896	{
897	NTSTATUS nt_status = pdb_init_ldapsam(pdb_method, location);
898
899	(*pdb_method)->name = "NDS_ldapsam";
900
901	pdb_init_NDS_ldapsam_common(pdb_method, location);
902
903	return nt_status;
904	}
905
906	NTSTATUS pdb_nds_init(void)
907	{
908	NTSTATUS nt_status;
909	if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "NDS_ldapsam", pdb_init_NDS_ldapsam)))
910	return nt_status;
911
912	if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "NDS_ldapsam_compat", pdb_init_NDS_ldapsam_compat)))
913	return nt_status;
914
915	return NT_STATUS_OK;
916	}

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