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source: branches/samba-3.2.x/source/passdb/passdb.c@ 738

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Last change on this file since 738 was 335, checked in by Herwig Bauernfeind, 16 years ago
Update 3.2 to 3.2.14 (final)
File size: 48.4 KB

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1	/*
2	Unix SMB/CIFS implementation.
3	Password and authentication handling
4	Copyright (C) Jeremy Allison 1996-2001
5	Copyright (C) Luke Kenneth Casson Leighton 1996-1998
6	Copyright (C) Gerald (Jerry) Carter 2000-2006
7	Copyright (C) Andrew Bartlett 2001-2002
8	Copyright (C) Simo Sorce 2003
9	Copyright (C) Volker Lendecke 2006
10
11	This program is free software; you can redistribute it and/or modify
12	it under the terms of the GNU General Public License as published by
13	the Free Software Foundation; either version 3 of the License, or
14	(at your option) any later version.
15
16	This program is distributed in the hope that it will be useful,
17	but WITHOUT ANY WARRANTY; without even the implied warranty of
18	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	GNU General Public License for more details.
20
21	You should have received a copy of the GNU General Public License
22	along with this program. If not, see <http://www.gnu.org/licenses/>.
23	*/
24
25	#include "includes.h"
26
27	#undef DBGC_CLASS
28	#define DBGC_CLASS DBGC_PASSDB
29
30	/******************************************************************
31	get the default domain/netbios name to be used when
32	testing authentication. For example, if you connect
33	to a Windows member server using a bogus domain name, the
34	Windows box will map the BOGUS\user to DOMAIN\user. A
35	standalone box will map to WKS\user.
36	******************************************************************/
37
38	const char *my_sam_name(void)
39	{
40	/* standalone servers can only use the local netbios name */
41	if ( lp_server_role() == ROLE_STANDALONE )
42	return global_myname();
43
44	/* Windows domain members default to the DOMAIN
45	name when not specified */
46	return lp_workgroup();
47	}
48
49	/**********************************************************************
50	***********************************************************************/
51
52	static int samu_destroy(struct samu *user)
53	{
54	data_blob_clear_free( &user->lm_pw );
55	data_blob_clear_free( &user->nt_pw );
56
57	if ( user->plaintext_pw )
58	memset( user->plaintext_pw, 0x0, strlen(user->plaintext_pw) );
59
60	return 0;
61	}
62
63	/**********************************************************************
64	generate a new struct samuser
65	***********************************************************************/
66
67	struct samu samu_new( TALLOC_CTX ctx )
68	{
69	struct samu *user;
70
71	if ( !(user = TALLOC_ZERO_P( ctx, struct samu )) ) {
72	DEBUG(0,("samuser_new: Talloc failed!\n"));
73	return NULL;
74	}
75
76	talloc_set_destructor( user, samu_destroy );
77
78	/* no initial methods */
79
80	user->methods = NULL;
81
82	/* Don't change these timestamp settings without a good reason.
83	They are important for NT member server compatibility. */
84
85	user->logon_time = (time_t)0;
86	user->pass_last_set_time = (time_t)0;
87	user->pass_can_change_time = (time_t)0;
88	user->logoff_time = get_time_t_max();
89	user->kickoff_time = get_time_t_max();
90	user->pass_must_change_time = get_time_t_max();
91	user->fields_present = 0x00ffffff;
92	user->logon_divs = 168; /* hours per week */
93	user->hours_len = 21; /* 21 times 8 bits = 168 */
94	memset(user->hours, 0xff, user->hours_len); /* available at all hours */
95	user->bad_password_count = 0;
96	user->logon_count = 0;
97	user->unknown_6 = 0x000004ec; /* don't know */
98
99	/* Some parts of samba strlen their pdb_get...() returns,
100	so this keeps the interface unchanged for now. */
101
102	user->username = "";
103	user->domain = "";
104	user->nt_username = "";
105	user->full_name = "";
106	user->home_dir = "";
107	user->logon_script = "";
108	user->profile_path = "";
109	user->acct_desc = "";
110	user->workstations = "";
111	user->comment = "";
112	user->munged_dial = "";
113
114	user->plaintext_pw = NULL;
115
116	/* Unless we know otherwise have a Account Control Bit
117	value of 'normal user'. This helps User Manager, which
118	asks for a filtered list of users. */
119
120	user->acct_ctrl = ACB_NORMAL;
121
122
123	return user;
124	}
125
126	/*********************************************************************
127	Initialize a struct samu from a struct passwd including the user
128	and group SIDs. The *user structure is filled out with the Unix
129	attributes and a user SID.
130	*********************************************************************/
131
132	static NTSTATUS samu_set_unix_internal(struct samu user, const struct passwd pwd, bool create)
133	{
134	const char *guest_account = lp_guestaccount();
135	const char *domain = global_myname();
136	uint32 urid;
137
138	if ( !pwd ) {
139	return NT_STATUS_NO_SUCH_USER;
140	}
141
142	/* Basic properties based upon the Unix account information */
143
144	pdb_set_username(user, pwd->pw_name, PDB_SET);
145	pdb_set_fullname(user, pwd->pw_gecos, PDB_SET);
146	pdb_set_domain (user, get_global_sam_name(), PDB_DEFAULT);
147	#if 0
148	/* This can lead to a primary group of S-1-22-2-XX which
149	will be rejected by other parts of the Samba code.
150	Rely on pdb_get_group_sid() to "Do The Right Thing" (TM)
151	--jerry */
152
153	gid_to_sid(&group_sid, pwd->pw_gid);
154	pdb_set_group_sid(user, &group_sid, PDB_SET);
155	#endif
156
157	/* save the password structure for later use */
158
159	user->unix_pw = tcopy_passwd( user, pwd );
160
161	/* Special case for the guest account which must have a RID of 501 */
162
163	if ( strequal( pwd->pw_name, guest_account ) ) {
164	if ( !pdb_set_user_sid_from_rid(user, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
165	return NT_STATUS_NO_SUCH_USER;
166	}
167	return NT_STATUS_OK;
168	}
169
170	/* Non-guest accounts...Check for a workstation or user account */
171
172	if (pwd->pw_name[strlen(pwd->pw_name)-1] == '$') {
173	/* workstation */
174
175	if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_DEFAULT)) {
176	DEBUG(1, ("Failed to set 'workstation account' flags for user %s.\n",
177	pwd->pw_name));
178	return NT_STATUS_INVALID_COMPUTER_NAME;
179	}
180	}
181	else {
182	/* user */
183
184	if (!pdb_set_acct_ctrl(user, ACB_NORMAL, PDB_DEFAULT)) {
185	DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n",
186	pwd->pw_name));
187	return NT_STATUS_INVALID_ACCOUNT_NAME;
188	}
189
190	/* set some basic attributes */
191
192	pdb_set_profile_path(user, talloc_sub_specified(user,
193	lp_logon_path(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
194	PDB_DEFAULT);
195	pdb_set_homedir(user, talloc_sub_specified(user,
196	lp_logon_home(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
197	PDB_DEFAULT);
198	pdb_set_dir_drive(user, talloc_sub_specified(user,
199	lp_logon_drive(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
200	PDB_DEFAULT);
201	pdb_set_logon_script(user, talloc_sub_specified(user,
202	lp_logon_script(), pwd->pw_name, domain, pwd->pw_uid, pwd->pw_gid),
203	PDB_DEFAULT);
204	}
205
206	/* Now deal with the user SID. If we have a backend that can generate
207	RIDs, then do so. But sometimes the caller just wanted a structure
208	initialized and will fill in these fields later (such as from a
209	netr_SamInfo3 structure) */
210
211	if ( create && !pdb_rid_algorithm() ) {
212	uint32 user_rid;
213	DOM_SID user_sid;
214
215	if ( !pdb_new_rid( &user_rid ) ) {
216	DEBUG(3, ("Could not allocate a new RID\n"));
217	return NT_STATUS_ACCESS_DENIED;
218	}
219
220	sid_copy( &user_sid, get_global_sam_sid() );
221	sid_append_rid( &user_sid, user_rid );
222
223	if ( !pdb_set_user_sid(user, &user_sid, PDB_SET) ) {
224	DEBUG(3, ("pdb_set_user_sid failed\n"));
225	return NT_STATUS_INTERNAL_ERROR;
226	}
227
228	return NT_STATUS_OK;
229	}
230
231	/* generate a SID for the user with the RID algorithm */
232
233	urid = algorithmic_pdb_uid_to_user_rid( user->unix_pw->pw_uid );
234
235	if ( !pdb_set_user_sid_from_rid( user, urid, PDB_SET) ) {
236	return NT_STATUS_INTERNAL_ERROR;
237	}
238
239	return NT_STATUS_OK;
240	}
241
242	/********************************************************************
243	Set the Unix user attributes
244	********************************************************************/
245
246	NTSTATUS samu_set_unix(struct samu user, const struct passwd pwd)
247	{
248	return samu_set_unix_internal( user, pwd, False );
249	}
250
251	NTSTATUS samu_alloc_rid_unix(struct samu user, const struct passwd pwd)
252	{
253	return samu_set_unix_internal( user, pwd, True );
254	}
255
256	/**********************************************************
257	Encode the account control bits into a string.
258	length = length of string to encode into (including terminating
259	null). length MUST BE MORE THAN 2 !
260	**********************************************************/
261
262	char *pdb_encode_acct_ctrl(uint32 acct_ctrl, size_t length)
263	{
264	fstring acct_str;
265	char *result;
266
267	size_t i = 0;
268
269	SMB_ASSERT(length <= sizeof(acct_str));
270
271	acct_str[i++] = '[';
272
273	if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
274	if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
275	if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
276	if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
277	if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
278	if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
279	if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
280	if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
281	if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
282	if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
283	if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
284
285	for ( ; i < length - 2 ; i++ )
286	acct_str[i] = ' ';
287
288	i = length - 2;
289	acct_str[i++] = ']';
290	acct_str[i++] = '\0';
291
292	result = talloc_strdup(talloc_tos(), acct_str);
293	SMB_ASSERT(result != NULL);
294	return result;
295	}
296
297	/**********************************************************
298	Decode the account control bits from a string.
299	**********************************************************/
300
301	uint32 pdb_decode_acct_ctrl(const char *p)
302	{
303	uint32 acct_ctrl = 0;
304	bool finished = False;
305
306	/*
307	* Check if the account type bits have been encoded after the
308	* NT password (in the form [NDHTUWSLXI]).
309	*/
310
311	if (*p != '[')
312	return 0;
313
314	for (p++; *p && !finished; p++) {
315	switch (*p) {
316	case 'N': { acct_ctrl \|= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
317	case 'D': { acct_ctrl \|= ACB_DISABLED ; break; /* 'D'isabled. */ }
318	case 'H': { acct_ctrl \|= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
319	case 'T': { acct_ctrl \|= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
320	case 'U': { acct_ctrl \|= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
321	case 'M': { acct_ctrl \|= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
322	case 'W': { acct_ctrl \|= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
323	case 'S': { acct_ctrl \|= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
324	case 'L': { acct_ctrl \|= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
325	case 'X': { acct_ctrl \|= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
326	case 'I': { acct_ctrl \|= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
327	case ' ': { break; }
328	case ':':
329	case '\n':
330	case '\0':
331	case ']':
332	default: { finished = True; }
333	}
334	}
335
336	return acct_ctrl;
337	}
338
339	/*************************************************************
340	Routine to set 32 hex password characters from a 16 byte array.
341	**************************************************************/
342
343	void pdb_sethexpwd(char p[33], const unsigned char *pwd, uint32 acct_ctrl)
344	{
345	if (pwd != NULL) {
346	int i;
347	for (i = 0; i < 16; i++)
348	slprintf(&p[i*2], 3, "%02X", pwd[i]);
349	} else {
350	if (acct_ctrl & ACB_PWNOTREQ)
351	safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 32);
352	else
353	safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 32);
354	}
355	}
356
357	/*************************************************************
358	Routine to get the 32 hex characters and turn them
359	into a 16 byte array.
360	**************************************************************/
361
362	bool pdb_gethexpwd(const char p, unsigned char pwd)
363	{
364	int i;
365	unsigned char lonybble, hinybble;
366	const char *hexchars = "0123456789ABCDEF";
367	char p1, p2;
368
369	if (!p)
370	return (False);
371
372	for (i = 0; i < 32; i += 2) {
373	hinybble = toupper_ascii(p[i]);
374	lonybble = toupper_ascii(p[i + 1]);
375
376	p1 = strchr(hexchars, hinybble);
377	p2 = strchr(hexchars, lonybble);
378
379	if (!p1 \|\| !p2)
380	return (False);
381
382	hinybble = PTR_DIFF(p1, hexchars);
383	lonybble = PTR_DIFF(p2, hexchars);
384
385	pwd[i / 2] = (hinybble << 4) \| lonybble;
386	}
387	return (True);
388	}
389
390	/*************************************************************
391	Routine to set 42 hex hours characters from a 21 byte array.
392	**************************************************************/
393
394	void pdb_sethexhours(char p, const unsigned char hours)
395	{
396	if (hours != NULL) {
397	int i;
398	for (i = 0; i < 21; i++) {
399	slprintf(&p[i*2], 3, "%02X", hours[i]);
400	}
401	} else {
402	safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
403	}
404	}
405
406	/*************************************************************
407	Routine to get the 42 hex characters and turn them
408	into a 21 byte array.
409	**************************************************************/
410
411	bool pdb_gethexhours(const char p, unsigned char hours)
412	{
413	int i;
414	unsigned char lonybble, hinybble;
415	const char *hexchars = "0123456789ABCDEF";
416	char p1, p2;
417
418	if (!p) {
419	return (False);
420	}
421
422	for (i = 0; i < 42; i += 2) {
423	hinybble = toupper_ascii(p[i]);
424	lonybble = toupper_ascii(p[i + 1]);
425
426	p1 = strchr(hexchars, hinybble);
427	p2 = strchr(hexchars, lonybble);
428
429	if (!p1 \|\| !p2) {
430	return (False);
431	}
432
433	hinybble = PTR_DIFF(p1, hexchars);
434	lonybble = PTR_DIFF(p2, hexchars);
435
436	hours[i / 2] = (hinybble << 4) \| lonybble;
437	}
438	return (True);
439	}
440
441	/********************************************************************
442	********************************************************************/
443
444	int algorithmic_rid_base(void)
445	{
446	int rid_offset;
447
448	rid_offset = lp_algorithmic_rid_base();
449
450	if (rid_offset < BASE_RID) {
451	/* Try to prevent admin foot-shooting, we can't put algorithmic
452	rids below 1000, that's the 'well known RIDs' on NT */
453	DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
454	rid_offset = BASE_RID;
455	}
456	if (rid_offset & 1) {
457	DEBUG(0, ("algorithmic rid base must be even\n"));
458	rid_offset += 1;
459	}
460	return rid_offset;
461	}
462
463	/*******************************************************************
464	Converts NT user RID to a UNIX uid.
465	********************************************************************/
466
467	uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
468	{
469	int rid_offset = algorithmic_rid_base();
470	return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
471	}
472
473	uid_t max_algorithmic_uid(void)
474	{
475	return algorithmic_pdb_user_rid_to_uid(0xfffffffe);
476	}
477
478	/*******************************************************************
479	converts UNIX uid to an NT User RID.
480	********************************************************************/
481
482	uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
483	{
484	int rid_offset = algorithmic_rid_base();
485	return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) \| USER_RID_TYPE);
486	}
487
488	/*******************************************************************
489	Converts NT group RID to a UNIX gid.
490	********************************************************************/
491
492	gid_t pdb_group_rid_to_gid(uint32 group_rid)
493	{
494	int rid_offset = algorithmic_rid_base();
495	return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
496	}
497
498	gid_t max_algorithmic_gid(void)
499	{
500	return pdb_group_rid_to_gid(0xffffffff);
501	}
502
503	/*******************************************************************
504	converts NT Group RID to a UNIX uid.
505
506	warning: you must not call that function only
507	you must do a call to the group mapping first.
508	there is not anymore a direct link between the gid and the rid.
509	********************************************************************/
510
511	uint32 algorithmic_pdb_gid_to_group_rid(gid_t gid)
512	{
513	int rid_offset = algorithmic_rid_base();
514	return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) \| GROUP_RID_TYPE);
515	}
516
517	/*******************************************************************
518	Decides if a RID is a well known RID.
519	********************************************************************/
520
521	static bool rid_is_well_known(uint32 rid)
522	{
523	/* Not using rid_offset here, because this is the actual
524	NT fixed value (1000) */
525
526	return (rid < BASE_RID);
527	}
528
529	/*******************************************************************
530	Decides if a RID is a user or group RID.
531	********************************************************************/
532
533	bool algorithmic_pdb_rid_is_user(uint32 rid)
534	{
535	if ( rid_is_well_known(rid) ) {
536	/*
537	* The only well known user RIDs are DOMAIN_USER_RID_ADMIN
538	* and DOMAIN_USER_RID_GUEST.
539	*/
540	if(rid == DOMAIN_USER_RID_ADMIN \|\| rid == DOMAIN_USER_RID_GUEST)
541	return True;
542	} else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
543	return True;
544	}
545	return False;
546	}
547
548	/*******************************************************************
549	Convert a name into a SID. Used in the lookup name rpc.
550	********************************************************************/
551
552	bool lookup_global_sam_name(const char name, int flags, uint32_t rid,
553	enum lsa_SidType *type)
554	{
555	GROUP_MAP map;
556	bool ret;
557
558	/* Windows treats "MACHINE\None" as a special name for
559	rid 513 on non-DCs. You cannot create a user or group
560	name "None" on Windows. You will get an error that
561	the group already exists. */
562
563	if ( strequal( name, "None" ) ) {
564	*rid = DOMAIN_GROUP_RID_USERS;
565	*type = SID_NAME_DOM_GRP;
566
567	return True;
568	}
569
570	/* LOOKUP_NAME_GROUP is a hack to allow valid users = @foo to work
571	* correctly in the case where foo also exists as a user. If the flag
572	* is set, don't look for users at all. */
573
574	if ((flags & LOOKUP_NAME_GROUP) == 0) {
575	struct samu *sam_account = NULL;
576	DOM_SID user_sid;
577
578	if ( !(sam_account = samu_new( NULL )) ) {
579	return False;
580	}
581
582	become_root();
583	ret = pdb_getsampwnam(sam_account, name);
584	unbecome_root();
585
586	if (ret) {
587	sid_copy(&user_sid, pdb_get_user_sid(sam_account));
588	}
589
590	TALLOC_FREE(sam_account);
591
592	if (ret) {
593	if (!sid_check_is_in_our_domain(&user_sid)) {
594	DEBUG(0, ("User %s with invalid SID %s in passdb\n",
595	name, sid_string_dbg(&user_sid)));
596	return False;
597	}
598
599	sid_peek_rid(&user_sid, rid);
600	*type = SID_NAME_USER;
601	return True;
602	}
603	}
604
605	/*
606	* Maybe it is a group ?
607	*/
608
609	become_root();
610	ret = pdb_getgrnam(&map, name);
611	unbecome_root();
612
613	if (!ret) {
614	return False;
615	}
616
617	/* BUILTIN groups are looked up elsewhere */
618	if (!sid_check_is_in_our_domain(&map.sid)) {
619	DEBUG(10, ("Found group %s (%s) not in our domain -- "
620	"ignoring.", name, sid_string_dbg(&map.sid)));
621	return False;
622	}
623
624	/* yes it's a mapped group */
625	sid_peek_rid(&map.sid, rid);
626	*type = map.sid_name_use;
627	return True;
628	}
629
630	/*************************************************************
631	Change a password entry in the local smbpasswd file.
632	*************************************************************/
633
634	NTSTATUS local_password_change(const char *user_name,
635	int local_flags,
636	const char *new_passwd,
637	char **pp_err_str,
638	char **pp_msg_str)
639	{
640	struct samu *sam_pass=NULL;
641	uint32 other_acb;
642	NTSTATUS result;
643
644	*pp_err_str = NULL;
645	*pp_msg_str = NULL;
646
647	/* Get the smb passwd entry for this user */
648
649	if ( !(sam_pass = samu_new( NULL )) ) {
650	return NT_STATUS_NO_MEMORY;
651	}
652
653	become_root();
654	if(!pdb_getsampwnam(sam_pass, user_name)) {
655	unbecome_root();
656	TALLOC_FREE(sam_pass);
657
658	if ((local_flags & LOCAL_ADD_USER) \|\| (local_flags & LOCAL_DELETE_USER)) {
659	int tmp_debug = DEBUGLEVEL;
660	struct passwd *pwd;
661
662	/* Might not exist in /etc/passwd. */
663
664	if (tmp_debug < 1) {
665	DEBUGLEVEL = 1;
666	}
667
668	if ( !(pwd = getpwnam_alloc( NULL, user_name)) ) {
669	return NT_STATUS_NO_SUCH_USER;
670	}
671
672	/* create the struct samu and initialize the basic Unix properties */
673
674	if ( !(sam_pass = samu_new( NULL )) ) {
675	return NT_STATUS_NO_MEMORY;
676	}
677
678	result = samu_alloc_rid_unix( sam_pass, pwd );
679
680	DEBUGLEVEL = tmp_debug;
681
682	TALLOC_FREE( pwd );
683
684	if (NT_STATUS_EQUAL(result, NT_STATUS_INVALID_PRIMARY_GROUP)) {
685	return result;
686	}
687
688	if (!NT_STATUS_IS_OK(result)) {
689	asprintf(pp_err_str, "Failed to " "initialize account for user %s: %s\n",
690	user_name, nt_errstr(result));
691	return result;
692	}
693	} else {
694	asprintf(pp_err_str, "Failed to find entry for user %s.\n", user_name);
695	return NT_STATUS_NO_SUCH_USER;
696	}
697	} else {
698	unbecome_root();
699	/* the entry already existed */
700	local_flags &= ~LOCAL_ADD_USER;
701	}
702
703	/* the 'other' acb bits not being changed here */
704	other_acb = (pdb_get_acct_ctrl(sam_pass) & (~(ACB_WSTRUST\|ACB_DOMTRUST\|ACB_SVRTRUST\|ACB_NORMAL)));
705	if (local_flags & LOCAL_TRUST_ACCOUNT) {
706	if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST \| other_acb, PDB_CHANGED) ) {
707	asprintf(pp_err_str, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
708	TALLOC_FREE(sam_pass);
709	return NT_STATUS_UNSUCCESSFUL;
710	}
711	} else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
712	if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST \| other_acb, PDB_CHANGED)) {
713	asprintf(pp_err_str, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
714	TALLOC_FREE(sam_pass);
715	return NT_STATUS_UNSUCCESSFUL;
716	}
717	} else {
718	if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL \| other_acb, PDB_CHANGED)) {
719	asprintf(pp_err_str, "Failed to set 'normal account' flags for user %s.\n", user_name);
720	TALLOC_FREE(sam_pass);
721	return NT_STATUS_UNSUCCESSFUL;
722	}
723	}
724
725	/*
726	* We are root - just write the new password
727	* and the valid last change time.
728	*/
729
730	if (local_flags & LOCAL_DISABLE_USER) {
731	if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)\|ACB_DISABLED, PDB_CHANGED)) {
732	asprintf(pp_err_str, "Failed to set 'disabled' flag for user %s.\n", user_name);
733	TALLOC_FREE(sam_pass);
734	return NT_STATUS_UNSUCCESSFUL;
735	}
736	} else if (local_flags & LOCAL_ENABLE_USER) {
737	if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
738	asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name);
739	TALLOC_FREE(sam_pass);
740	return NT_STATUS_UNSUCCESSFUL;
741	}
742	}
743
744	if (local_flags & LOCAL_SET_NO_PASSWORD) {
745	if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)\|ACB_PWNOTREQ, PDB_CHANGED)) {
746	asprintf(pp_err_str, "Failed to set 'no password required' flag for user %s.\n", user_name);
747	TALLOC_FREE(sam_pass);
748	return NT_STATUS_UNSUCCESSFUL;
749	}
750	} else if (local_flags & LOCAL_SET_PASSWORD) {
751	/*
752	* If we're dealing with setting a completely empty user account
753	* ie. One with a password of 'XXXX', but not set disabled (like
754	* an account created from scratch) then if the old password was
755	* 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
756	* We remove that as we're giving this user their first password
757	* and the decision hasn't really been made to disable them (ie.
758	* don't create them disabled). JRA.
759	*/
760	if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
761	if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED), PDB_CHANGED)) {
762	asprintf(pp_err_str, "Failed to unset 'disabled' flag for user %s.\n", user_name);
763	TALLOC_FREE(sam_pass);
764	return NT_STATUS_UNSUCCESSFUL;
765	}
766	}
767	if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ), PDB_CHANGED)) {
768	asprintf(pp_err_str, "Failed to unset 'no password required' flag for user %s.\n", user_name);
769	TALLOC_FREE(sam_pass);
770	return NT_STATUS_UNSUCCESSFUL;
771	}
772
773	if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
774	asprintf(pp_err_str, "Failed to set password for user %s.\n", user_name);
775	TALLOC_FREE(sam_pass);
776	return NT_STATUS_UNSUCCESSFUL;
777	}
778	}
779
780	if (local_flags & LOCAL_ADD_USER) {
781	if (NT_STATUS_IS_OK(pdb_add_sam_account(sam_pass))) {
782	asprintf(pp_msg_str, "Added user %s.\n", user_name);
783	TALLOC_FREE(sam_pass);
784	return NT_STATUS_OK;
785	} else {
786	asprintf(pp_err_str, "Failed to add entry for user %s.\n", user_name);
787	TALLOC_FREE(sam_pass);
788	return NT_STATUS_UNSUCCESSFUL;
789	}
790	} else if (local_flags & LOCAL_DELETE_USER) {
791	if (!NT_STATUS_IS_OK(pdb_delete_sam_account(sam_pass))) {
792	asprintf(pp_err_str, "Failed to delete entry for user %s.\n", user_name);
793	TALLOC_FREE(sam_pass);
794	return NT_STATUS_UNSUCCESSFUL;
795	}
796	asprintf(pp_msg_str, "Deleted user %s.\n", user_name);
797	} else {
798	result = pdb_update_sam_account(sam_pass);
799	if(!NT_STATUS_IS_OK(result)) {
800	asprintf(pp_err_str, "Failed to modify entry for user %s.\n", user_name);
801	TALLOC_FREE(sam_pass);
802	return result;
803	}
804	if(local_flags & LOCAL_DISABLE_USER)
805	asprintf(pp_msg_str, "Disabled user %s.\n", user_name);
806	else if (local_flags & LOCAL_ENABLE_USER)
807	asprintf(pp_msg_str, "Enabled user %s.\n", user_name);
808	else if (local_flags & LOCAL_SET_NO_PASSWORD)
809	asprintf(pp_msg_str, "User %s password set to none.\n", user_name);
810	}
811
812	TALLOC_FREE(sam_pass);
813	return NT_STATUS_OK;
814	}
815
816	/**********************************************************************
817	Marshall/unmarshall struct samu structs.
818	*********************************************************************/
819
820	#define TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd"
821
822	/*********************************************************************
823	*********************************************************************/
824
825	bool init_sam_from_buffer_v3(struct samu sampass, uint8 buf, uint32 buflen)
826	{
827
828	/* times are stored as 32bit integer
829	take care on system with 64bit wide time_t
830	--SSS */
831	uint32 logon_time,
832	logoff_time,
833	kickoff_time,
834	bad_password_time,
835	pass_last_set_time,
836	pass_can_change_time,
837	pass_must_change_time;
838	char *username = NULL;
839	char *domain = NULL;
840	char *nt_username = NULL;
841	char *dir_drive = NULL;
842	char *unknown_str = NULL;
843	char *munged_dial = NULL;
844	char *fullname = NULL;
845	char *homedir = NULL;
846	char *logon_script = NULL;
847	char *profile_path = NULL;
848	char *acct_desc = NULL;
849	char *workstations = NULL;
850	uint32 username_len, domain_len, nt_username_len,
851	dir_drive_len, unknown_str_len, munged_dial_len,
852	fullname_len, homedir_len, logon_script_len,
853	profile_path_len, acct_desc_len, workstations_len;
854
855	uint32 user_rid, group_rid, hours_len, unknown_6, acct_ctrl;
856	uint16 logon_divs;
857	uint16 bad_password_count, logon_count;
858	uint8 *hours = NULL;
859	uint8 lm_pw_ptr = NULL, nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
860	uint32 len = 0;
861	uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
862	uint32 pwHistLen = 0;
863	bool ret = True;
864	fstring tmp_string;
865	bool expand_explicit = lp_passdb_expand_explicit();
866
867	if(sampass == NULL \|\| buf == NULL) {
868	DEBUG(0, ("init_sam_from_buffer_v3: NULL parameters found!\n"));
869	return False;
870	}
871
872	/* TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
873
874	/* unpack the buffer into variables */
875	len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V3,
876	&logon_time, /* d */
877	&logoff_time, /* d */
878	&kickoff_time, /* d */
879	&bad_password_time, /* d */
880	&pass_last_set_time, /* d */
881	&pass_can_change_time, /* d */
882	&pass_must_change_time, /* d */
883	&username_len, &username, /* B */
884	&domain_len, &domain, /* B */
885	&nt_username_len, &nt_username, /* B */
886	&fullname_len, &fullname, /* B */
887	&homedir_len, &homedir, /* B */
888	&dir_drive_len, &dir_drive, /* B */
889	&logon_script_len, &logon_script, /* B */
890	&profile_path_len, &profile_path, /* B */
891	&acct_desc_len, &acct_desc, /* B */
892	&workstations_len, &workstations, /* B */
893	&unknown_str_len, &unknown_str, /* B */
894	&munged_dial_len, &munged_dial, /* B */
895	&user_rid, /* d */
896	&group_rid, /* d */
897	&lm_pw_len, &lm_pw_ptr, /* B */
898	&nt_pw_len, &nt_pw_ptr, /* B */
899	/* Change from V1 is addition of password history field. */
900	&nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
901	/* Change from V2 is the uint32 acb_mask */
902	&acct_ctrl, /* d */
903	/* Also "remove_me" field was removed. */
904	&logon_divs, /* w */
905	&hours_len, /* d */
906	&hourslen, &hours, /* B */
907	&bad_password_count, /* w */
908	&logon_count, /* w */
909	&unknown_6); /* d */
910
911	if (len == (uint32) -1) {
912	ret = False;
913	goto done;
914	}
915
916	pdb_set_logon_time(sampass, convert_uint32_to_time_t(logon_time), PDB_SET);
917	pdb_set_logoff_time(sampass, convert_uint32_to_time_t(logoff_time), PDB_SET);
918	pdb_set_kickoff_time(sampass, convert_uint32_to_time_t(kickoff_time), PDB_SET);
919	pdb_set_bad_password_time(sampass, convert_uint32_to_time_t(bad_password_time), PDB_SET);
920	pdb_set_pass_can_change_time(sampass, convert_uint32_to_time_t(pass_can_change_time), PDB_SET);
921	pdb_set_pass_must_change_time(sampass, convert_uint32_to_time_t(pass_must_change_time), PDB_SET);
922	pdb_set_pass_last_set_time(sampass, convert_uint32_to_time_t(pass_last_set_time), PDB_SET);
923
924	pdb_set_username(sampass, username, PDB_SET);
925	pdb_set_domain(sampass, domain, PDB_SET);
926	pdb_set_nt_username(sampass, nt_username, PDB_SET);
927	pdb_set_fullname(sampass, fullname, PDB_SET);
928
929	if (homedir) {
930	fstrcpy( tmp_string, homedir );
931	if (expand_explicit) {
932	standard_sub_basic( username, domain, tmp_string,
933	sizeof(tmp_string) );
934	}
935	pdb_set_homedir(sampass, tmp_string, PDB_SET);
936	}
937	else {
938	pdb_set_homedir(sampass,
939	talloc_sub_basic(sampass, username, domain,
940	lp_logon_home()),
941	PDB_DEFAULT);
942	}
943
944	if (dir_drive)
945	pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
946	else
947	pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
948
949	if (logon_script) {
950	fstrcpy( tmp_string, logon_script );
951	if (expand_explicit) {
952	standard_sub_basic( username, domain, tmp_string,
953	sizeof(tmp_string) );
954	}
955	pdb_set_logon_script(sampass, tmp_string, PDB_SET);
956	}
957	else {
958	pdb_set_logon_script(sampass,
959	talloc_sub_basic(sampass, username, domain,
960	lp_logon_script()),
961	PDB_DEFAULT);
962	}
963
964	if (profile_path) {
965	fstrcpy( tmp_string, profile_path );
966	if (expand_explicit) {
967	standard_sub_basic( username, domain, tmp_string,
968	sizeof(tmp_string) );
969	}
970	pdb_set_profile_path(sampass, tmp_string, PDB_SET);
971	}
972	else {
973	pdb_set_profile_path(sampass,
974	talloc_sub_basic(sampass, username, domain, lp_logon_path()),
975	PDB_DEFAULT);
976	}
977
978	pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
979	pdb_set_workstations(sampass, workstations, PDB_SET);
980	pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
981
982	if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
983	if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
984	ret = False;
985	goto done;
986	}
987	}
988
989	if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
990	if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
991	ret = False;
992	goto done;
993	}
994	}
995
996	pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
997	if (pwHistLen) {
998	uint8 pw_hist = (uint8 )SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
999	if (!pw_hist) {
1000	ret = False;
1001	goto done;
1002	}
1003	memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
1004	if (nt_pw_hist_ptr && nt_pw_hist_len) {
1005	int i;
1006	SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
1007	nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
1008	for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
1009	memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
1010	&nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
1011	PW_HISTORY_ENTRY_LEN);
1012	}
1013	}
1014	if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
1015	SAFE_FREE(pw_hist);
1016	ret = False;
1017	goto done;
1018	}
1019	SAFE_FREE(pw_hist);
1020	} else {
1021	pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
1022	}
1023
1024	pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
1025	pdb_set_hours_len(sampass, hours_len, PDB_SET);
1026	pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
1027	pdb_set_logon_count(sampass, logon_count, PDB_SET);
1028	pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
1029	/* Change from V2 is the uint32 acct_ctrl */
1030	pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
1031	pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
1032	pdb_set_hours(sampass, hours, PDB_SET);
1033
1034	done:
1035
1036	SAFE_FREE(username);
1037	SAFE_FREE(domain);
1038	SAFE_FREE(nt_username);
1039	SAFE_FREE(fullname);
1040	SAFE_FREE(homedir);
1041	SAFE_FREE(dir_drive);
1042	SAFE_FREE(logon_script);
1043	SAFE_FREE(profile_path);
1044	SAFE_FREE(acct_desc);
1045	SAFE_FREE(workstations);
1046	SAFE_FREE(munged_dial);
1047	SAFE_FREE(unknown_str);
1048	SAFE_FREE(lm_pw_ptr);
1049	SAFE_FREE(nt_pw_ptr);
1050	SAFE_FREE(nt_pw_hist_ptr);
1051	SAFE_FREE(hours);
1052
1053	return ret;
1054	}
1055
1056	/*********************************************************************
1057	*********************************************************************/
1058
1059	uint32 init_buffer_from_sam_v3 (uint8 *buf, struct samu sampass, bool size_only)
1060	{
1061	size_t len, buflen;
1062
1063	/* times are stored as 32bit integer
1064	take care on system with 64bit wide time_t
1065	--SSS */
1066	uint32 logon_time,
1067	logoff_time,
1068	kickoff_time,
1069	bad_password_time,
1070	pass_last_set_time,
1071	pass_can_change_time,
1072	pass_must_change_time;
1073
1074	uint32 user_rid, group_rid;
1075
1076	const char *username;
1077	const char *domain;
1078	const char *nt_username;
1079	const char *dir_drive;
1080	const char *unknown_str;
1081	const char *munged_dial;
1082	const char *fullname;
1083	const char *homedir;
1084	const char *logon_script;
1085	const char *profile_path;
1086	const char *acct_desc;
1087	const char *workstations;
1088	uint32 username_len, domain_len, nt_username_len,
1089	dir_drive_len, unknown_str_len, munged_dial_len,
1090	fullname_len, homedir_len, logon_script_len,
1091	profile_path_len, acct_desc_len, workstations_len;
1092
1093	const uint8 *lm_pw;
1094	const uint8 *nt_pw;
1095	const uint8 *nt_pw_hist;
1096	uint32 lm_pw_len = 16;
1097	uint32 nt_pw_len = 16;
1098	uint32 nt_pw_hist_len;
1099	uint32 pwHistLen = 0;
1100
1101	*buf = NULL;
1102	buflen = 0;
1103
1104	logon_time = convert_time_t_to_uint32(pdb_get_logon_time(sampass));
1105	logoff_time = convert_time_t_to_uint32(pdb_get_logoff_time(sampass));
1106	kickoff_time = convert_time_t_to_uint32(pdb_get_kickoff_time(sampass));
1107	bad_password_time = convert_time_t_to_uint32(pdb_get_bad_password_time(sampass));
1108	pass_can_change_time = convert_time_t_to_uint32(pdb_get_pass_can_change_time_noncalc(sampass));
1109	pass_must_change_time = convert_time_t_to_uint32(pdb_get_pass_must_change_time(sampass));
1110	pass_last_set_time = convert_time_t_to_uint32(pdb_get_pass_last_set_time(sampass));
1111
1112	user_rid = pdb_get_user_rid(sampass);
1113	group_rid = pdb_get_group_rid(sampass);
1114
1115	username = pdb_get_username(sampass);
1116	if (username) {
1117	username_len = strlen(username) +1;
1118	} else {
1119	username_len = 0;
1120	}
1121
1122	domain = pdb_get_domain(sampass);
1123	if (domain) {
1124	domain_len = strlen(domain) +1;
1125	} else {
1126	domain_len = 0;
1127	}
1128
1129	nt_username = pdb_get_nt_username(sampass);
1130	if (nt_username) {
1131	nt_username_len = strlen(nt_username) +1;
1132	} else {
1133	nt_username_len = 0;
1134	}
1135
1136	fullname = pdb_get_fullname(sampass);
1137	if (fullname) {
1138	fullname_len = strlen(fullname) +1;
1139	} else {
1140	fullname_len = 0;
1141	}
1142
1143	/*
1144	* Only updates fields which have been set (not defaults from smb.conf)
1145	*/
1146
1147	if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
1148	dir_drive = pdb_get_dir_drive(sampass);
1149	} else {
1150	dir_drive = NULL;
1151	}
1152	if (dir_drive) {
1153	dir_drive_len = strlen(dir_drive) +1;
1154	} else {
1155	dir_drive_len = 0;
1156	}
1157
1158	if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
1159	homedir = pdb_get_homedir(sampass);
1160	} else {
1161	homedir = NULL;
1162	}
1163	if (homedir) {
1164	homedir_len = strlen(homedir) +1;
1165	} else {
1166	homedir_len = 0;
1167	}
1168
1169	if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
1170	logon_script = pdb_get_logon_script(sampass);
1171	} else {
1172	logon_script = NULL;
1173	}
1174	if (logon_script) {
1175	logon_script_len = strlen(logon_script) +1;
1176	} else {
1177	logon_script_len = 0;
1178	}
1179
1180	if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
1181	profile_path = pdb_get_profile_path(sampass);
1182	} else {
1183	profile_path = NULL;
1184	}
1185	if (profile_path) {
1186	profile_path_len = strlen(profile_path) +1;
1187	} else {
1188	profile_path_len = 0;
1189	}
1190
1191	lm_pw = pdb_get_lanman_passwd(sampass);
1192	if (!lm_pw) {
1193	lm_pw_len = 0;
1194	}
1195
1196	nt_pw = pdb_get_nt_passwd(sampass);
1197	if (!nt_pw) {
1198	nt_pw_len = 0;
1199	}
1200
1201	pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1202	nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
1203	if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
1204	nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
1205	} else {
1206	nt_pw_hist_len = 0;
1207	}
1208
1209	acct_desc = pdb_get_acct_desc(sampass);
1210	if (acct_desc) {
1211	acct_desc_len = strlen(acct_desc) +1;
1212	} else {
1213	acct_desc_len = 0;
1214	}
1215
1216	workstations = pdb_get_workstations(sampass);
1217	if (workstations) {
1218	workstations_len = strlen(workstations) +1;
1219	} else {
1220	workstations_len = 0;
1221	}
1222
1223	unknown_str = NULL;
1224	unknown_str_len = 0;
1225
1226	munged_dial = pdb_get_munged_dial(sampass);
1227	if (munged_dial) {
1228	munged_dial_len = strlen(munged_dial) +1;
1229	} else {
1230	munged_dial_len = 0;
1231	}
1232
1233	/* TDB_FORMAT_STRING_V3 "dddddddBBBBBBBBBBBBddBBBdwdBwwd" */
1234
1235	/* one time to get the size needed */
1236	len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V3,
1237	logon_time, /* d */
1238	logoff_time, /* d */
1239	kickoff_time, /* d */
1240	bad_password_time, /* d */
1241	pass_last_set_time, /* d */
1242	pass_can_change_time, /* d */
1243	pass_must_change_time, /* d */
1244	username_len, username, /* B */
1245	domain_len, domain, /* B */
1246	nt_username_len, nt_username, /* B */
1247	fullname_len, fullname, /* B */
1248	homedir_len, homedir, /* B */
1249	dir_drive_len, dir_drive, /* B */
1250	logon_script_len, logon_script, /* B */
1251	profile_path_len, profile_path, /* B */
1252	acct_desc_len, acct_desc, /* B */
1253	workstations_len, workstations, /* B */
1254	unknown_str_len, unknown_str, /* B */
1255	munged_dial_len, munged_dial, /* B */
1256	user_rid, /* d */
1257	group_rid, /* d */
1258	lm_pw_len, lm_pw, /* B */
1259	nt_pw_len, nt_pw, /* B */
1260	nt_pw_hist_len, nt_pw_hist, /* B */
1261	pdb_get_acct_ctrl(sampass), /* d */
1262	pdb_get_logon_divs(sampass), /* w */
1263	pdb_get_hours_len(sampass), /* d */
1264	MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1265	pdb_get_bad_password_count(sampass), /* w */
1266	pdb_get_logon_count(sampass), /* w */
1267	pdb_get_unknown_6(sampass)); /* d */
1268
1269	if (size_only) {
1270	return buflen;
1271	}
1272
1273	/* malloc the space needed */
1274	if ( (buf=(uint8)SMB_MALLOC(len)) == NULL) {
1275	DEBUG(0,("init_buffer_from_sam_v3: Unable to malloc() memory for buffer!\n"));
1276	return (-1);
1277	}
1278
1279	/* now for the real call to tdb_pack() */
1280	buflen = tdb_pack(*buf, len, TDB_FORMAT_STRING_V3,
1281	logon_time, /* d */
1282	logoff_time, /* d */
1283	kickoff_time, /* d */
1284	bad_password_time, /* d */
1285	pass_last_set_time, /* d */
1286	pass_can_change_time, /* d */
1287	pass_must_change_time, /* d */
1288	username_len, username, /* B */
1289	domain_len, domain, /* B */
1290	nt_username_len, nt_username, /* B */
1291	fullname_len, fullname, /* B */
1292	homedir_len, homedir, /* B */
1293	dir_drive_len, dir_drive, /* B */
1294	logon_script_len, logon_script, /* B */
1295	profile_path_len, profile_path, /* B */
1296	acct_desc_len, acct_desc, /* B */
1297	workstations_len, workstations, /* B */
1298	unknown_str_len, unknown_str, /* B */
1299	munged_dial_len, munged_dial, /* B */
1300	user_rid, /* d */
1301	group_rid, /* d */
1302	lm_pw_len, lm_pw, /* B */
1303	nt_pw_len, nt_pw, /* B */
1304	nt_pw_hist_len, nt_pw_hist, /* B */
1305	pdb_get_acct_ctrl(sampass), /* d */
1306	pdb_get_logon_divs(sampass), /* w */
1307	pdb_get_hours_len(sampass), /* d */
1308	MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
1309	pdb_get_bad_password_count(sampass), /* w */
1310	pdb_get_logon_count(sampass), /* w */
1311	pdb_get_unknown_6(sampass)); /* d */
1312
1313	/* check to make sure we got it correct */
1314	if (buflen != len) {
1315	DEBUG(0, ("init_buffer_from_sam_v3: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
1316	(unsigned long)buflen, (unsigned long)len));
1317	/* error */
1318	SAFE_FREE (*buf);
1319	return (-1);
1320	}
1321
1322	return (buflen);
1323	}
1324
1325
1326	/*********************************************************************
1327	*********************************************************************/
1328
1329	bool pdb_copy_sam_account(struct samu dst, struct samu src )
1330	{
1331	uint8 *buf = NULL;
1332	int len;
1333
1334	len = init_buffer_from_sam_v3(&buf, src, False);
1335	if (len == -1 \|\| !buf) {
1336	SAFE_FREE(buf);
1337	return False;
1338	}
1339
1340	if (!init_sam_from_buffer_v3( dst, buf, len )) {
1341	free(buf);
1342	return False;
1343	}
1344
1345	dst->methods = src->methods;
1346
1347	if ( src->unix_pw ) {
1348	dst->unix_pw = tcopy_passwd( dst, src->unix_pw );
1349	if (!dst->unix_pw) {
1350	free(buf);
1351	return False;
1352	}
1353	}
1354
1355	free(buf);
1356	return True;
1357	}
1358
1359	/*********************************************************************
1360	Update the bad password count checking the AP_RESET_COUNT_TIME
1361	*********************************************************************/
1362
1363	bool pdb_update_bad_password_count(struct samu sampass, bool updated)
1364	{
1365	time_t LastBadPassword;
1366	uint16 BadPasswordCount;
1367	uint32 resettime;
1368	bool res;
1369
1370	BadPasswordCount = pdb_get_bad_password_count(sampass);
1371	if (!BadPasswordCount) {
1372	DEBUG(9, ("No bad password attempts.\n"));
1373	return True;
1374	}
1375
1376	become_root();
1377	res = pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime);
1378	unbecome_root();
1379
1380	if (!res) {
1381	DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
1382	return False;
1383	}
1384
1385	/* First, check if there is a reset time to compare */
1386	if ((resettime == (uint32) -1) \|\| (resettime == 0)) {
1387	DEBUG(9, ("No reset time, can't reset bad pw count\n"));
1388	return True;
1389	}
1390
1391	LastBadPassword = pdb_get_bad_password_time(sampass);
1392	DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
1393	(uint32) LastBadPassword, resettime, (uint32)time(NULL)));
1394	if (time(NULL) > (LastBadPassword + convert_uint32_to_time_t(resettime)*60)){
1395	pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1396	pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1397	if (updated) {
1398	*updated = True;
1399	}
1400	}
1401
1402	return True;
1403	}
1404
1405	/*********************************************************************
1406	Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
1407	*********************************************************************/
1408
1409	bool pdb_update_autolock_flag(struct samu sampass, bool updated)
1410	{
1411	uint32 duration;
1412	time_t LastBadPassword;
1413	bool res;
1414
1415	if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
1416	DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
1417	pdb_get_username(sampass)));
1418	return True;
1419	}
1420
1421	become_root();
1422	res = pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration);
1423	unbecome_root();
1424
1425	if (!res) {
1426	DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
1427	return False;
1428	}
1429
1430	/* First, check if there is a duration to compare */
1431	if ((duration == (uint32) -1) \|\| (duration == 0)) {
1432	DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
1433	return True;
1434	}
1435
1436	LastBadPassword = pdb_get_bad_password_time(sampass);
1437	DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
1438	pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
1439
1440	if (LastBadPassword == (time_t)0) {
1441	DEBUG(1,("pdb_update_autolock_flag: Account %s "
1442	"administratively locked out with no bad password "
1443	"time. Leaving locked out.\n",
1444	pdb_get_username(sampass) ));
1445	return True;
1446	}
1447
1448	if ((time(NULL) > (LastBadPassword + convert_uint32_to_time_t(duration) * 60))) {
1449	pdb_set_acct_ctrl(sampass,
1450	pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
1451	PDB_CHANGED);
1452	pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
1453	pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
1454	if (updated) {
1455	*updated = True;
1456	}
1457	}
1458
1459	return True;
1460	}
1461
1462	/*********************************************************************
1463	Increment the bad_password_count
1464	*********************************************************************/
1465
1466	bool pdb_increment_bad_password_count(struct samu *sampass)
1467	{
1468	uint32 account_policy_lockout;
1469	bool autolock_updated = False, badpw_updated = False;
1470	bool ret;
1471
1472	/* Retrieve the account lockout policy */
1473	become_root();
1474	ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
1475	unbecome_root();
1476	if ( !ret ) {
1477	DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
1478	return False;
1479	}
1480
1481	/* If there is no policy, we don't need to continue checking */
1482	if (!account_policy_lockout) {
1483	DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
1484	return True;
1485	}
1486
1487	/* Check if the autolock needs to be cleared */
1488	if (!pdb_update_autolock_flag(sampass, &autolock_updated))
1489	return False;
1490
1491	/* Check if the badpw count needs to be reset */
1492	if (!pdb_update_bad_password_count(sampass, &badpw_updated))
1493	return False;
1494
1495	/*
1496	Ok, now we can assume that any resetting that needs to be
1497	done has been done, and just get on with incrementing
1498	and autolocking if necessary
1499	*/
1500
1501	pdb_set_bad_password_count(sampass,
1502	pdb_get_bad_password_count(sampass)+1,
1503	PDB_CHANGED);
1504	pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
1505
1506
1507	if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
1508	return True;
1509
1510	if (!pdb_set_acct_ctrl(sampass,
1511	pdb_get_acct_ctrl(sampass) \| ACB_AUTOLOCK,
1512	PDB_CHANGED)) {
1513	DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
1514	return False;
1515	}
1516
1517	return True;
1518	}
1519
1520	bool is_trusted_domain_situation(const char *domain_name)
1521	{
1522	return IS_DC &&
1523	lp_allow_trusted_domains() &&
1524	!strequal(domain_name, lp_workgroup());
1525	}
1526
1527	/*******************************************************************
1528	Wrapper around retrieving the clear text trust account password.
1529	appropriate account name is stored in account_name.
1530	Caller must free password, but not account_name.
1531	*******************************************************************/
1532
1533	bool get_trust_pw_clear(const char domain, char *ret_pwd,
1534	const char *account_name, uint32 channel)
1535	{
1536	char *pwd;
1537	time_t last_set_time;
1538
1539	/* if we are a DC and this is not our domain, then lookup an account
1540	* for the domain trust */
1541
1542	if (is_trusted_domain_situation(domain)) {
1543	if (!pdb_get_trusteddom_pw(domain, ret_pwd, NULL,
1544	&last_set_time))
1545	{
1546	DEBUG(0, ("get_trust_pw: could not fetch trust "
1547	"account password for trusted domain %s\n",
1548	domain));
1549	return false;
1550	}
1551
1552	if (channel != NULL) {
1553	*channel = SEC_CHAN_DOMAIN;
1554	}
1555
1556	if (account_name != NULL) {
1557	*account_name = lp_workgroup();
1558	}
1559
1560	return true;
1561	}
1562
1563	/* Here we are a domain member server. We can only be a member
1564	of one domain so ignore the request domain and assume our own */
1565
1566	pwd = secrets_fetch_machine_password(lp_workgroup(), &last_set_time, channel);
1567
1568	if (pwd != NULL) {
1569	*ret_pwd = pwd;
1570	if (account_name != NULL) {
1571	*account_name = global_myname();
1572	}
1573
1574	return true;
1575	}
1576
1577	DEBUG(5, ("get_trust_pw_clear: could not fetch clear text trust "
1578	"account password for domain %s\n", domain));
1579	return false;
1580	}
1581
1582	/*******************************************************************
1583	Wrapper around retrieving the trust account password.
1584	appropriate account name is stored in account_name.
1585	*******************************************************************/
1586
1587	bool get_trust_pw_hash(const char *domain, uint8 ret_pwd[16],
1588	const char *account_name, uint32 channel)
1589	{
1590	char *pwd = NULL;
1591	time_t last_set_time;
1592
1593	if (get_trust_pw_clear(domain, &pwd, account_name, channel)) {
1594	E_md4hash(pwd, ret_pwd);
1595	SAFE_FREE(pwd);
1596	return true;
1597	} else if (is_trusted_domain_situation(domain)) {
1598	return false;
1599	}
1600
1601	/* as a fallback, try to get the hashed pwd directly from the tdb... */
1602
1603	if (secrets_fetch_trust_account_password_legacy(domain, ret_pwd,
1604	&last_set_time,
1605	channel))
1606	{
1607	if (account_name != NULL) {
1608	*account_name = global_myname();
1609	}
1610
1611	return true;
1612	}
1613
1614	DEBUG(5, ("get_trust_pw_hash: could not fetch trust account "
1615	"password for domain %s\n", domain));
1616	return False;
1617	}
1618
1619	struct samr_LogonHours get_logon_hours_from_pdb(TALLOC_CTX *mem_ctx,
1620	struct samu *pw)
1621	{
1622	struct samr_LogonHours hours;
1623	const int units_per_week = 168;
1624
1625	ZERO_STRUCT(hours);
1626	hours.bits = talloc_array(mem_ctx, uint8_t, units_per_week);
1627	if (!hours.bits) {
1628	return hours;
1629	}
1630
1631	hours.units_per_week = units_per_week;
1632	memset(hours.bits, 0xFF, units_per_week);
1633
1634	if (pdb_get_hours(pw)) {
1635	memcpy(hours.bits, pdb_get_hours(pw),
1636	MIN(pdb_get_hours_len(pw), units_per_week));
1637	}
1638
1639	return hours;
1640	}
1641

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