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Do proper error handling if the socket is closed
[Samba/gebeck_regimport.git] / source3 / passdb / pdb_tdb.c
blobe40f4bbab8a25c41df79530ee5606ee9b977e91e
1 /*
2 * Unix SMB/CIFS implementation.
3 * SMB parameters and setup
4 * Copyright (C) Andrew Tridgell 1992-1998
5 * Copyright (C) Simo Sorce 2000-2003
6 * Copyright (C) Gerald Carter 2000-2006
7 * Copyright (C) Jeremy Allison 2001
8 * Copyright (C) Andrew Bartlett 2002
9 * Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2005
10 *
11 * This program is free software; you can redistribute it and/or modify it under
12 * the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 3 of the License, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #include "includes.h"
26
27 #if 0 /* when made a module use this */
28
29 static int tdbsam_debug_level = DBGC_ALL;
30 #undef DBGC_CLASS
31 #define DBGC_CLASS tdbsam_debug_level
32
33 #else
34
35 #undef DBGC_CLASS
36 #define DBGC_CLASS DBGC_PASSDB
37
38 #endif
39
40 #define TDBSAM_VERSION 3 /* Most recent TDBSAM version */
41 #define TDBSAM_VERSION_STRING "INFO/version"
42 #define PASSDB_FILE_NAME "passdb.tdb"
43 #define USERPREFIX "USER_"
44 #define USERPREFIX_LEN 5
45 #define RIDPREFIX "RID_"
46 #define PRIVPREFIX "PRIV_"
47
48 /* GLOBAL TDB SAM CONTEXT */
49
50 static struct db_context *db_sam;
51 static char *tdbsam_filename;
52
53 /**********************************************************************
54 Marshall/unmarshall struct samu structs.
55 *********************************************************************/
56
57 #define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
58 #define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
59 #define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
60
61 /*********************************************************************
62 *********************************************************************/
63
64 static bool init_sam_from_buffer_v0(struct samu *sampass, uint8 *buf, uint32 buflen)
65 {
66
67 /* times are stored as 32bit integer
68 take care on system with 64bit wide time_t
69 --SSS */
70 uint32 logon_time,
71 logoff_time,
72 kickoff_time,
73 pass_last_set_time,
74 pass_can_change_time,
75 pass_must_change_time;
76 char *username = NULL;
77 char *domain = NULL;
78 char *nt_username = NULL;
79 char *dir_drive = NULL;
80 char *unknown_str = NULL;
81 char *munged_dial = NULL;
82 char *fullname = NULL;
83 char *homedir = NULL;
84 char *logon_script = NULL;
85 char *profile_path = NULL;
86 char *acct_desc = NULL;
87 char *workstations = NULL;
88 uint32 username_len, domain_len, nt_username_len,
89 dir_drive_len, unknown_str_len, munged_dial_len,
90 fullname_len, homedir_len, logon_script_len,
91 profile_path_len, acct_desc_len, workstations_len;
92
93 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
94 uint16 acct_ctrl, logon_divs;
95 uint16 bad_password_count, logon_count;
96 uint8 *hours = NULL;
97 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
98 uint32 len = 0;
99 uint32 lm_pw_len, nt_pw_len, hourslen;
100 bool ret = True;
101
102 if(sampass == NULL || buf == NULL) {
103 DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
104 return False;
105 }
106
107 /* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
108
109 /* unpack the buffer into variables */
110 len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V0,
111 &logon_time, /* d */
112 &logoff_time, /* d */
113 &kickoff_time, /* d */
114 &pass_last_set_time, /* d */
115 &pass_can_change_time, /* d */
116 &pass_must_change_time, /* d */
117 &username_len, &username, /* B */
118 &domain_len, &domain, /* B */
119 &nt_username_len, &nt_username, /* B */
120 &fullname_len, &fullname, /* B */
121 &homedir_len, &homedir, /* B */
122 &dir_drive_len, &dir_drive, /* B */
123 &logon_script_len, &logon_script, /* B */
124 &profile_path_len, &profile_path, /* B */
125 &acct_desc_len, &acct_desc, /* B */
126 &workstations_len, &workstations, /* B */
127 &unknown_str_len, &unknown_str, /* B */
128 &munged_dial_len, &munged_dial, /* B */
129 &user_rid, /* d */
130 &group_rid, /* d */
131 &lm_pw_len, &lm_pw_ptr, /* B */
132 &nt_pw_len, &nt_pw_ptr, /* B */
133 &acct_ctrl, /* w */
134 &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
135 &logon_divs, /* w */
136 &hours_len, /* d */
137 &hourslen, &hours, /* B */
138 &bad_password_count, /* w */
139 &logon_count, /* w */
140 &unknown_6); /* d */
141
142 if (len == (uint32) -1) {
143 ret = False;
144 goto done;
145 }
146
147 pdb_set_logon_time(sampass, logon_time, PDB_SET);
148 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
149 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
150 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
151 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
152 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
153
154 pdb_set_username(sampass, username, PDB_SET);
155 pdb_set_domain(sampass, domain, PDB_SET);
156 pdb_set_nt_username(sampass, nt_username, PDB_SET);
157 pdb_set_fullname(sampass, fullname, PDB_SET);
158
159 if (homedir) {
160 pdb_set_homedir(sampass, homedir, PDB_SET);
161 }
162 else {
163 pdb_set_homedir(sampass,
164 talloc_sub_basic(sampass, username, domain,
165 lp_logon_home()),
166 PDB_DEFAULT);
167 }
168
169 if (dir_drive)
170 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
171 else {
172 pdb_set_dir_drive(sampass,
173 talloc_sub_basic(sampass, username, domain,
174 lp_logon_drive()),
175 PDB_DEFAULT);
176 }
177
178 if (logon_script)
179 pdb_set_logon_script(sampass, logon_script, PDB_SET);
180 else {
181 pdb_set_logon_script(sampass,
182 talloc_sub_basic(sampass, username, domain,
183 lp_logon_script()),
184 PDB_DEFAULT);
185 }
186
187 if (profile_path) {
188 pdb_set_profile_path(sampass, profile_path, PDB_SET);
189 } else {
190 pdb_set_profile_path(sampass,
191 talloc_sub_basic(sampass, username, domain,
192 lp_logon_path()),
193 PDB_DEFAULT);
194 }
195
196 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
197 pdb_set_workstations(sampass, workstations, PDB_SET);
198 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
199
200 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
201 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
202 ret = False;
203 goto done;
204 }
205 }
206
207 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
208 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
209 ret = False;
210 goto done;
211 }
212 }
213
214 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
215 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
216 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
217 pdb_set_hours_len(sampass, hours_len, PDB_SET);
218 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
219 pdb_set_logon_count(sampass, logon_count, PDB_SET);
220 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
221 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
222 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
223 pdb_set_hours(sampass, hours, PDB_SET);
224
225 done:
226
227 SAFE_FREE(username);
228 SAFE_FREE(domain);
229 SAFE_FREE(nt_username);
230 SAFE_FREE(fullname);
231 SAFE_FREE(homedir);
232 SAFE_FREE(dir_drive);
233 SAFE_FREE(logon_script);
234 SAFE_FREE(profile_path);
235 SAFE_FREE(acct_desc);
236 SAFE_FREE(workstations);
237 SAFE_FREE(munged_dial);
238 SAFE_FREE(unknown_str);
239 SAFE_FREE(lm_pw_ptr);
240 SAFE_FREE(nt_pw_ptr);
241 SAFE_FREE(hours);
242
243 return ret;
244 }
245
246 /*********************************************************************
247 *********************************************************************/
248
249 static bool init_sam_from_buffer_v1(struct samu *sampass, uint8 *buf, uint32 buflen)
250 {
251
252 /* times are stored as 32bit integer
253 take care on system with 64bit wide time_t
254 --SSS */
255 uint32 logon_time,
256 logoff_time,
257 kickoff_time,
258 bad_password_time,
259 pass_last_set_time,
260 pass_can_change_time,
261 pass_must_change_time;
262 char *username = NULL;
263 char *domain = NULL;
264 char *nt_username = NULL;
265 char *dir_drive = NULL;
266 char *unknown_str = NULL;
267 char *munged_dial = NULL;
268 char *fullname = NULL;
269 char *homedir = NULL;
270 char *logon_script = NULL;
271 char *profile_path = NULL;
272 char *acct_desc = NULL;
273 char *workstations = NULL;
274 uint32 username_len, domain_len, nt_username_len,
275 dir_drive_len, unknown_str_len, munged_dial_len,
276 fullname_len, homedir_len, logon_script_len,
277 profile_path_len, acct_desc_len, workstations_len;
278
279 uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
280 uint16 acct_ctrl, logon_divs;
281 uint16 bad_password_count, logon_count;
282 uint8 *hours = NULL;
283 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
284 uint32 len = 0;
285 uint32 lm_pw_len, nt_pw_len, hourslen;
286 bool ret = True;
287
288 if(sampass == NULL || buf == NULL) {
289 DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
290 return False;
291 }
292
293 /* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
294
295 /* unpack the buffer into variables */
296 len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V1,
297 &logon_time, /* d */
298 &logoff_time, /* d */
299 &kickoff_time, /* d */
300 /* Change from V0 is addition of bad_password_time field. */
301 &bad_password_time, /* d */
302 &pass_last_set_time, /* d */
303 &pass_can_change_time, /* d */
304 &pass_must_change_time, /* d */
305 &username_len, &username, /* B */
306 &domain_len, &domain, /* B */
307 &nt_username_len, &nt_username, /* B */
308 &fullname_len, &fullname, /* B */
309 &homedir_len, &homedir, /* B */
310 &dir_drive_len, &dir_drive, /* B */
311 &logon_script_len, &logon_script, /* B */
312 &profile_path_len, &profile_path, /* B */
313 &acct_desc_len, &acct_desc, /* B */
314 &workstations_len, &workstations, /* B */
315 &unknown_str_len, &unknown_str, /* B */
316 &munged_dial_len, &munged_dial, /* B */
317 &user_rid, /* d */
318 &group_rid, /* d */
319 &lm_pw_len, &lm_pw_ptr, /* B */
320 &nt_pw_len, &nt_pw_ptr, /* B */
321 &acct_ctrl, /* w */
322 &remove_me, /* d */
323 &logon_divs, /* w */
324 &hours_len, /* d */
325 &hourslen, &hours, /* B */
326 &bad_password_count, /* w */
327 &logon_count, /* w */
328 &unknown_6); /* d */
329
330 if (len == (uint32) -1) {
331 ret = False;
332 goto done;
333 }
334
335 pdb_set_logon_time(sampass, logon_time, PDB_SET);
336 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
337 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
338
339 /* Change from V0 is addition of bad_password_time field. */
340 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
341 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
342 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
343 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
344
345 pdb_set_username(sampass, username, PDB_SET);
346 pdb_set_domain(sampass, domain, PDB_SET);
347 pdb_set_nt_username(sampass, nt_username, PDB_SET);
348 pdb_set_fullname(sampass, fullname, PDB_SET);
349
350 if (homedir) {
351 pdb_set_homedir(sampass, homedir, PDB_SET);
352 }
353 else {
354 pdb_set_homedir(sampass,
355 talloc_sub_basic(sampass, username, domain,
356 lp_logon_home()),
357 PDB_DEFAULT);
358 }
359
360 if (dir_drive)
361 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
362 else {
363 pdb_set_dir_drive(sampass,
364 talloc_sub_basic(sampass, username, domain,
365 lp_logon_drive()),
366 PDB_DEFAULT);
367 }
368
369 if (logon_script)
370 pdb_set_logon_script(sampass, logon_script, PDB_SET);
371 else {
372 pdb_set_logon_script(sampass,
373 talloc_sub_basic(sampass, username, domain,
374 lp_logon_script()),
375 PDB_DEFAULT);
376 }
377
378 if (profile_path) {
379 pdb_set_profile_path(sampass, profile_path, PDB_SET);
380 } else {
381 pdb_set_profile_path(sampass,
382 talloc_sub_basic(sampass, username, domain,
383 lp_logon_path()),
384 PDB_DEFAULT);
385 }
386
387 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
388 pdb_set_workstations(sampass, workstations, PDB_SET);
389 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
390
391 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
392 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
393 ret = False;
394 goto done;
395 }
396 }
397
398 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
399 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
400 ret = False;
401 goto done;
402 }
403 }
404
405 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
406
407 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
408 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
409 pdb_set_hours_len(sampass, hours_len, PDB_SET);
410 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
411 pdb_set_logon_count(sampass, logon_count, PDB_SET);
412 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
413 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
414 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
415 pdb_set_hours(sampass, hours, PDB_SET);
416
417 done:
418
419 SAFE_FREE(username);
420 SAFE_FREE(domain);
421 SAFE_FREE(nt_username);
422 SAFE_FREE(fullname);
423 SAFE_FREE(homedir);
424 SAFE_FREE(dir_drive);
425 SAFE_FREE(logon_script);
426 SAFE_FREE(profile_path);
427 SAFE_FREE(acct_desc);
428 SAFE_FREE(workstations);
429 SAFE_FREE(munged_dial);
430 SAFE_FREE(unknown_str);
431 SAFE_FREE(lm_pw_ptr);
432 SAFE_FREE(nt_pw_ptr);
433 SAFE_FREE(hours);
434
435 return ret;
436 }
437
438 bool init_sam_from_buffer_v2(struct samu *sampass, uint8 *buf, uint32 buflen)
439 {
440
441 /* times are stored as 32bit integer
442 take care on system with 64bit wide time_t
443 --SSS */
444 uint32 logon_time,
445 logoff_time,
446 kickoff_time,
447 bad_password_time,
448 pass_last_set_time,
449 pass_can_change_time,
450 pass_must_change_time;
451 char *username = NULL;
452 char *domain = NULL;
453 char *nt_username = NULL;
454 char *dir_drive = NULL;
455 char *unknown_str = NULL;
456 char *munged_dial = NULL;
457 char *fullname = NULL;
458 char *homedir = NULL;
459 char *logon_script = NULL;
460 char *profile_path = NULL;
461 char *acct_desc = NULL;
462 char *workstations = NULL;
463 uint32 username_len, domain_len, nt_username_len,
464 dir_drive_len, unknown_str_len, munged_dial_len,
465 fullname_len, homedir_len, logon_script_len,
466 profile_path_len, acct_desc_len, workstations_len;
467
468 uint32 user_rid, group_rid, hours_len, unknown_6;
469 uint16 acct_ctrl, logon_divs;
470 uint16 bad_password_count, logon_count;
471 uint8 *hours = NULL;
472 uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
473 uint32 len = 0;
474 uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
475 uint32 pwHistLen = 0;
476 bool ret = True;
477 fstring tmp_string;
478 bool expand_explicit = lp_passdb_expand_explicit();
479
480 if(sampass == NULL || buf == NULL) {
481 DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
482 return False;
483 }
484
485 /* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
486
487 /* unpack the buffer into variables */
488 len = tdb_unpack (buf, buflen, TDB_FORMAT_STRING_V2,
489 &logon_time, /* d */
490 &logoff_time, /* d */
491 &kickoff_time, /* d */
492 &bad_password_time, /* d */
493 &pass_last_set_time, /* d */
494 &pass_can_change_time, /* d */
495 &pass_must_change_time, /* d */
496 &username_len, &username, /* B */
497 &domain_len, &domain, /* B */
498 &nt_username_len, &nt_username, /* B */
499 &fullname_len, &fullname, /* B */
500 &homedir_len, &homedir, /* B */
501 &dir_drive_len, &dir_drive, /* B */
502 &logon_script_len, &logon_script, /* B */
503 &profile_path_len, &profile_path, /* B */
504 &acct_desc_len, &acct_desc, /* B */
505 &workstations_len, &workstations, /* B */
506 &unknown_str_len, &unknown_str, /* B */
507 &munged_dial_len, &munged_dial, /* B */
508 &user_rid, /* d */
509 &group_rid, /* d */
510 &lm_pw_len, &lm_pw_ptr, /* B */
511 &nt_pw_len, &nt_pw_ptr, /* B */
512 /* Change from V1 is addition of password history field. */
513 &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
514 &acct_ctrl, /* w */
515 /* Also "remove_me" field was removed. */
516 &logon_divs, /* w */
517 &hours_len, /* d */
518 &hourslen, &hours, /* B */
519 &bad_password_count, /* w */
520 &logon_count, /* w */
521 &unknown_6); /* d */
522
523 if (len == (uint32) -1) {
524 ret = False;
525 goto done;
526 }
527
528 pdb_set_logon_time(sampass, logon_time, PDB_SET);
529 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
530 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
531 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
532 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
533 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
534 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
535
536 pdb_set_username(sampass, username, PDB_SET);
537 pdb_set_domain(sampass, domain, PDB_SET);
538 pdb_set_nt_username(sampass, nt_username, PDB_SET);
539 pdb_set_fullname(sampass, fullname, PDB_SET);
540
541 if (homedir) {
542 fstrcpy( tmp_string, homedir );
543 if (expand_explicit) {
544 standard_sub_basic( username, domain, tmp_string,
545 sizeof(tmp_string) );
546 }
547 pdb_set_homedir(sampass, tmp_string, PDB_SET);
548 }
549 else {
550 pdb_set_homedir(sampass,
551 talloc_sub_basic(sampass, username, domain,
552 lp_logon_home()),
553 PDB_DEFAULT);
554 }
555
556 if (dir_drive)
557 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
558 else
559 pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
560
561 if (logon_script) {
562 fstrcpy( tmp_string, logon_script );
563 if (expand_explicit) {
564 standard_sub_basic( username, domain, tmp_string,
565 sizeof(tmp_string) );
566 }
567 pdb_set_logon_script(sampass, tmp_string, PDB_SET);
568 }
569 else {
570 pdb_set_logon_script(sampass,
571 talloc_sub_basic(sampass, username, domain,
572 lp_logon_script()),
573 PDB_DEFAULT);
574 }
575
576 if (profile_path) {
577 fstrcpy( tmp_string, profile_path );
578 if (expand_explicit) {
579 standard_sub_basic( username, domain, tmp_string,
580 sizeof(tmp_string) );
581 }
582 pdb_set_profile_path(sampass, tmp_string, PDB_SET);
583 }
584 else {
585 pdb_set_profile_path(sampass,
586 talloc_sub_basic(sampass, username, domain,
587 lp_logon_path()),
588 PDB_DEFAULT);
589 }
590
591 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
592 pdb_set_workstations(sampass, workstations, PDB_SET);
593 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
594
595 if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
596 if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
597 ret = False;
598 goto done;
599 }
600 }
601
602 if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
603 if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
604 ret = False;
605 goto done;
606 }
607 }
608
609 /* Change from V1 is addition of password history field. */
610 pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
611 if (pwHistLen) {
612 uint8 *pw_hist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN);
613 if (!pw_hist) {
614 ret = False;
615 goto done;
616 }
617 memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
618 if (nt_pw_hist_ptr && nt_pw_hist_len) {
619 int i;
620 SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
621 nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
622 for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
623 memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
624 &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
625 PW_HISTORY_ENTRY_LEN);
626 }
627 }
628 if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
629 SAFE_FREE(pw_hist);
630 ret = False;
631 goto done;
632 }
633 SAFE_FREE(pw_hist);
634 } else {
635 pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
636 }
637
638 pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
639 pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
640 pdb_set_hours_len(sampass, hours_len, PDB_SET);
641 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
642 pdb_set_logon_count(sampass, logon_count, PDB_SET);
643 pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
644 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
645 pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
646 pdb_set_hours(sampass, hours, PDB_SET);
647
648 done:
649
650 SAFE_FREE(username);
651 SAFE_FREE(domain);
652 SAFE_FREE(nt_username);
653 SAFE_FREE(fullname);
654 SAFE_FREE(homedir);
655 SAFE_FREE(dir_drive);
656 SAFE_FREE(logon_script);
657 SAFE_FREE(profile_path);
658 SAFE_FREE(acct_desc);
659 SAFE_FREE(workstations);
660 SAFE_FREE(munged_dial);
661 SAFE_FREE(unknown_str);
662 SAFE_FREE(lm_pw_ptr);
663 SAFE_FREE(nt_pw_ptr);
664 SAFE_FREE(nt_pw_hist_ptr);
665 SAFE_FREE(hours);
666
667 return ret;
668 }
669
670
671 /**********************************************************************
672 Intialize a struct samu struct from a BYTE buffer of size len
673 *********************************************************************/
674
675 static bool init_sam_from_buffer(struct samu *sampass, uint8 *buf, uint32 buflen)
676 {
677 return init_sam_from_buffer_v3(sampass, buf, buflen);
678 }
679
680 /**********************************************************************
681 Intialize a BYTE buffer from a struct samu struct
682 *********************************************************************/
683
684 static uint32 init_buffer_from_sam (uint8 **buf, struct samu *sampass, bool size_only)
685 {
686 return init_buffer_from_sam_v3(buf, sampass, size_only);
687 }
688
689 /**********************************************************************
690 Intialize a BYTE buffer from a struct samu struct
691 *********************************************************************/
692
693 struct tdbsam_convert_state {
694 int32_t from;
695 bool success;
696 };
697
698 static int tdbsam_convert_one(struct db_record *rec, void *priv)
699 {
700 struct tdbsam_convert_state *state =
701 (struct tdbsam_convert_state *)priv;
702 struct samu *user;
703 TDB_DATA data;
704 NTSTATUS status;
705 bool ret;
706
707 if (rec->key.dsize < USERPREFIX_LEN) {
708 return 0;
709 }
710 if (strncmp((char *)rec->key.dptr, USERPREFIX, USERPREFIX_LEN) != 0) {
711 return 0;
712 }
713
714 user = samu_new(talloc_tos());
715 if (user == NULL) {
716 DEBUG(0,("tdbsam_convert: samu_new() failed!\n"));
717 state->success = false;
718 return -1;
719 }
720
721 DEBUG(10,("tdbsam_convert: Try unpacking a record with (key:%s) "
722 "(version:%d)\n", rec->key.dptr, state->from));
723
724 switch (state->from) {
725 case 0:
726 ret = init_sam_from_buffer_v0(user, (uint8 *)rec->value.dptr,
727 rec->value.dsize);
728 break;
729 case 1:
730 ret = init_sam_from_buffer_v1(user, (uint8 *)rec->value.dptr,
731 rec->value.dsize);
732 break;
733 case 2:
734 ret = init_sam_from_buffer_v2(user, (uint8 *)rec->value.dptr,
735 rec->value.dsize);
736 break;
737 case 3:
738 ret = init_sam_from_buffer_v3(user, (uint8 *)rec->value.dptr,
739 rec->value.dsize);
740 break;
741 default:
742 /* unknown tdbsam version */
743 ret = False;
744 }
745 if (!ret) {
746 DEBUG(0,("tdbsam_convert: Bad struct samu entry returned "
747 "from TDB (key:%s) (version:%d)\n", rec->key.dptr,
748 state->from));
749 TALLOC_FREE(user);
750 state->success = false;
751 return -1;
752 }
753
754 data.dsize = init_buffer_from_sam(&data.dptr, user, false);
755 TALLOC_FREE(user);
756
757 if (data.dsize == -1) {
758 DEBUG(0,("tdbsam_convert: cannot pack the struct samu into "
759 "the new format\n"));
760 state->success = false;
761 return -1;
762 }
763
764 status = rec->store(rec, data, TDB_MODIFY);
765 if (!NT_STATUS_IS_OK(status)) {
766 DEBUG(0, ("Could not store the new record: %s\n",
767 nt_errstr(status)));
768 state->success = false;
769 return -1;
770 }
771
772 return 0;
773 }
774
775 static bool tdbsam_convert(struct db_context *db, int32 from)
776 {
777 struct tdbsam_convert_state state;
778 int ret;
779
780 state.from = from;
781 state.success = true;
782
783 if (db->transaction_start(db) != 0) {
784 DEBUG(0, ("Could not start transaction\n"));
785 return false;
786 }
787
788 ret = db->traverse(db, tdbsam_convert_one, &state);
789 if (ret < 0) {
790 DEBUG(0, ("traverse failed\n"));
791 goto cancel;
792 }
793
794 if (!state.success) {
795 DEBUG(0, ("Converting records failed\n"));
796 goto cancel;
797 }
798
799 if (dbwrap_store_int32(db, TDBSAM_VERSION_STRING,
800 TDBSAM_VERSION) != 0) {
801 DEBUG(0, ("Could not store tdbsam version\n"));
802 goto cancel;
803 }
804
805 if (db->transaction_commit(db) != 0) {
806 DEBUG(0, ("Could not commit transaction\n"));
807 return false;
808 }
809
810 return true;
811
812 cancel:
813 if (db->transaction_cancel(db) != 0) {
814 smb_panic("transaction_cancel failed");
815 }
816
817 return false;
818 }
819
820 /*********************************************************************
821 Open the tdbsam file based on the absolute path specified.
822 Uses a reference count to allow multiple open calls.
823 *********************************************************************/
824
825 static bool tdbsam_open( const char *name )
826 {
827 int32 version;
828
829 /* check if we are already open */
830
831 if ( db_sam ) {
832 return true;
833 }
834
835 /* Try to open tdb passwd. Create a new one if necessary */
836
837 db_sam = db_open(NULL, name, 0, TDB_DEFAULT, O_CREAT|O_RDWR, 0600);
838 if (db_sam == NULL) {
839 DEBUG(0, ("tdbsam_open: Failed to open/create TDB passwd "
840 "[%s]\n", name));
841 return false;
842 }
843
844 /* Check the version */
845 version = dbwrap_fetch_int32(db_sam, TDBSAM_VERSION_STRING);
846 if (version == -1) {
847 version = 0; /* Version not found, assume version 0 */
848 }
849
850 /* Compare the version */
851 if (version > TDBSAM_VERSION) {
852 /* Version more recent than the latest known */
853 DEBUG(0, ("tdbsam_open: unknown version => %d\n", version));
854 TALLOC_FREE(db_sam);
855 return false;
856 }
857
858 if ( version < TDBSAM_VERSION ) {
859 DEBUG(1, ("tdbsam_open: Converting version %d database to "
860 "version %d.\n", version, TDBSAM_VERSION));
861
862 if ( !tdbsam_convert(db_sam, version) ) {
863 DEBUG(0, ("tdbsam_open: Error when trying to convert "
864 "tdbsam [%s]\n",name));
865 TALLOC_FREE(db_sam);
866 return false;
867 }
868
869 DEBUG(3, ("TDBSAM converted successfully.\n"));
870 }
871
872 DEBUG(4,("tdbsam_open: successfully opened %s\n", name ));
873
874 return true;
875 }
876
877 /******************************************************************
878 Lookup a name in the SAM TDB
879 ******************************************************************/
880
881 static NTSTATUS tdbsam_getsampwnam (struct pdb_methods *my_methods,
882 struct samu *user, const char *sname)
883 {
884 TDB_DATA data;
885 fstring keystr;
886 fstring name;
887
888 if ( !user ) {
889 DEBUG(0,("pdb_getsampwnam: struct samu is NULL.\n"));
890 return NT_STATUS_NO_MEMORY;
891 }
892
893 /* Data is stored in all lower-case */
894 fstrcpy(name, sname);
895 strlower_m(name);
896
897 /* set search key */
898 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
899
900 /* open the database */
901
902 if ( !tdbsam_open( tdbsam_filename ) ) {
903 DEBUG(0,("tdbsam_getsampwnam: failed to open %s!\n", tdbsam_filename));
904 return NT_STATUS_ACCESS_DENIED;
905 }
906
907 /* get the record */
908
909 data = dbwrap_fetch_bystring(db_sam, talloc_tos(), keystr);
910 if (!data.dptr) {
911 DEBUG(5,("pdb_getsampwnam (TDB): error fetching database.\n"));
912 DEBUGADD(5, (" Key: %s\n", keystr));
913 return NT_STATUS_NO_SUCH_USER;
914 }
915
916 /* unpack the buffer */
917
918 if (!init_sam_from_buffer(user, data.dptr, data.dsize)) {
919 DEBUG(0,("pdb_getsampwent: Bad struct samu entry returned from TDB!\n"));
920 SAFE_FREE(data.dptr);
921 return NT_STATUS_NO_MEMORY;
922 }
923
924 /* success */
925
926 TALLOC_FREE(data.dptr);
927
928 return NT_STATUS_OK;
929 }
930
931 /***************************************************************************
932 Search by rid
933 **************************************************************************/
934
935 static NTSTATUS tdbsam_getsampwrid (struct pdb_methods *my_methods,
936 struct samu *user, uint32 rid)
937 {
938 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
939 TDB_DATA data;
940 fstring keystr;
941 fstring name;
942
943 if ( !user ) {
944 DEBUG(0,("pdb_getsampwrid: struct samu is NULL.\n"));
945 return nt_status;
946 }
947
948 /* set search key */
949
950 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
951
952 /* open the database */
953
954 if ( !tdbsam_open( tdbsam_filename ) ) {
955 DEBUG(0,("tdbsam_getsampwnam: failed to open %s!\n", tdbsam_filename));
956 return NT_STATUS_ACCESS_DENIED;
957 }
958
959 /* get the record */
960
961 data = dbwrap_fetch_bystring(db_sam, talloc_tos(), keystr);
962 if (!data.dptr) {
963 DEBUG(5,("pdb_getsampwrid (TDB): error looking up RID %d by key %s.\n", rid, keystr));
964 return NT_STATUS_UNSUCCESSFUL;
965 }
966
967 fstrcpy(name, (const char *)data.dptr);
968 TALLOC_FREE(data.dptr);
969
970 return tdbsam_getsampwnam (my_methods, user, name);
971 }
972
973 static NTSTATUS tdbsam_getsampwsid(struct pdb_methods *my_methods,
974 struct samu * user, const DOM_SID *sid)
975 {
976 uint32 rid;
977
978 if ( !sid_peek_check_rid(get_global_sam_sid(), sid, &rid) )
979 return NT_STATUS_UNSUCCESSFUL;
980
981 return tdbsam_getsampwrid(my_methods, user, rid);
982 }
983
984 static bool tdb_delete_samacct_only( struct samu *sam_pass )
985 {
986 fstring keystr;
987 fstring name;
988 NTSTATUS status;
989
990 fstrcpy(name, pdb_get_username(sam_pass));
991 strlower_m(name);
992
993 /* set the search key */
994
995 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
996
997 /* it's outaa here! 8^) */
998
999 status = dbwrap_delete_bystring(db_sam, keystr);
1000 if (!NT_STATUS_IS_OK(status)) {
1001 DEBUG(5, ("Error deleting entry from tdb passwd "
1002 "database: %s!\n", nt_errstr(status)));
1003 return false;
1004 }
1005
1006 return true;
1007 }
1008
1009 /***************************************************************************
1010 Delete a struct samu records for the username and RID key
1011 ****************************************************************************/
1012
1013 static NTSTATUS tdbsam_delete_sam_account(struct pdb_methods *my_methods,
1014 struct samu *sam_pass)
1015 {
1016 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
1017 fstring keystr;
1018 uint32 rid;
1019 fstring name;
1020
1021 /* open the database */
1022
1023 if ( !tdbsam_open( tdbsam_filename ) ) {
1024 DEBUG(0,("tdbsam_delete_sam_account: failed to open %s!\n",
1025 tdbsam_filename));
1026 return NT_STATUS_ACCESS_DENIED;
1027 }
1028
1029 fstrcpy(name, pdb_get_username(sam_pass));
1030 strlower_m(name);
1031
1032 /* set the search key */
1033
1034 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
1035
1036 rid = pdb_get_user_rid(sam_pass);
1037
1038 /* it's outaa here! 8^) */
1039
1040 if (db_sam->transaction_start(db_sam) != 0) {
1041 DEBUG(0, ("Could not start transaction\n"));
1042 return NT_STATUS_UNSUCCESSFUL;
1043 }
1044
1045 nt_status = dbwrap_delete_bystring(db_sam, keystr);
1046 if (!NT_STATUS_IS_OK(nt_status)) {
1047 DEBUG(5, ("Error deleting entry from tdb passwd "
1048 "database: %s!\n", nt_errstr(nt_status)));
1049 goto cancel;
1050 }
1051
1052 /* set the search key */
1053
1054 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX, rid);
1055
1056 /* it's outaa here! 8^) */
1057
1058 nt_status = dbwrap_delete_bystring(db_sam, keystr);
1059 if (!NT_STATUS_IS_OK(nt_status)) {
1060 DEBUG(5, ("Error deleting entry from tdb rid "
1061 "database: %s!\n", nt_errstr(nt_status)));
1062 goto cancel;
1063 }
1064
1065 if (db_sam->transaction_commit(db_sam) != 0) {
1066 DEBUG(0, ("Could not commit transaction\n"));
1067 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1068 }
1069
1070 return NT_STATUS_OK;
1071
1072 cancel:
1073 if (db_sam->transaction_cancel(db_sam) != 0) {
1074 smb_panic("transaction_cancel failed");
1075 }
1076
1077 return nt_status;
1078 }
1079
1080
1081 /***************************************************************************
1082 Update the TDB SAM account record only
1083 Assumes that the tdbsam is already open
1084 ****************************************************************************/
1085 static bool tdb_update_samacct_only( struct samu* newpwd, int flag )
1086 {
1087 TDB_DATA data;
1088 uint8 *buf = NULL;
1089 fstring keystr;
1090 fstring name;
1091 bool ret = false;
1092 NTSTATUS status;
1093
1094 /* copy the struct samu struct into a BYTE buffer for storage */
1095
1096 if ( (data.dsize=init_buffer_from_sam (&buf, newpwd, False)) == -1 ) {
1097 DEBUG(0,("tdb_update_sam: ERROR - Unable to copy struct samu info BYTE buffer!\n"));
1098 goto done;
1099 }
1100 data.dptr = buf;
1101
1102 fstrcpy(name, pdb_get_username(newpwd));
1103 strlower_m(name);
1104
1105 DEBUG(5, ("Storing %saccount %s with RID %d\n",
1106 flag == TDB_INSERT ? "(new) " : "", name,
1107 pdb_get_user_rid(newpwd)));
1108
1109 /* setup the USER index key */
1110 slprintf(keystr, sizeof(keystr)-1, "%s%s", USERPREFIX, name);
1111
1112 /* add the account */
1113
1114 status = dbwrap_store_bystring(db_sam, keystr, data, flag);
1115 if (!NT_STATUS_IS_OK(status)) {
1116 DEBUG(0, ("Unable to modify passwd TDB: %s!",
1117 nt_errstr(status)));
1118 goto done;
1119 }
1120
1121 ret = true;
1122
1123 done:
1124 /* cleanup */
1125 SAFE_FREE(buf);
1126 return ret;
1127 }
1128
1129 /***************************************************************************
1130 Update the TDB SAM RID record only
1131 Assumes that the tdbsam is already open
1132 ****************************************************************************/
1133 static bool tdb_update_ridrec_only( struct samu* newpwd, int flag )
1134 {
1135 TDB_DATA data;
1136 fstring keystr;
1137 fstring name;
1138 NTSTATUS status;
1139
1140 fstrcpy(name, pdb_get_username(newpwd));
1141 strlower_m(name);
1142
1143 /* setup RID data */
1144 data = string_term_tdb_data(name);
1145
1146 /* setup the RID index key */
1147 slprintf(keystr, sizeof(keystr)-1, "%s%.8x", RIDPREFIX,
1148 pdb_get_user_rid(newpwd));
1149
1150 /* add the reference */
1151 status = dbwrap_store_bystring(db_sam, keystr, data, flag);
1152 if (!NT_STATUS_IS_OK(status)) {
1153 DEBUG(0, ("Unable to modify TDB passwd: %s!\n",
1154 nt_errstr(status)));
1155 return false;
1156 }
1157
1158 return true;
1159
1160 }
1161
1162 /***************************************************************************
1163 Update the TDB SAM
1164 ****************************************************************************/
1165
1166 static bool tdb_update_sam(struct pdb_methods *my_methods, struct samu* newpwd,
1167 int flag)
1168 {
1169 if (!pdb_get_user_rid(newpwd)) {
1170 DEBUG(0,("tdb_update_sam: struct samu (%s) with no RID!\n",
1171 pdb_get_username(newpwd)));
1172 return False;
1173 }
1174
1175 /* open the database */
1176
1177 if ( !tdbsam_open( tdbsam_filename ) ) {
1178 DEBUG(0,("tdbsam_getsampwnam: failed to open %s!\n", tdbsam_filename));
1179 return False;
1180 }
1181
1182 if (db_sam->transaction_start(db_sam) != 0) {
1183 DEBUG(0, ("Could not start transaction\n"));
1184 return false;
1185 }
1186
1187 if (!tdb_update_samacct_only(newpwd, flag)
1188 || !tdb_update_ridrec_only(newpwd, flag)) {
1189 goto cancel;
1190 }
1191
1192 if (db_sam->transaction_commit(db_sam) != 0) {
1193 DEBUG(0, ("Could not commit transaction\n"));
1194 return false;
1195 }
1196
1197 return true;
1198
1199 cancel:
1200 if (db_sam->transaction_cancel(db_sam) != 0) {
1201 smb_panic("transaction_cancel failed");
1202 }
1203 return false;
1204 }
1205
1206 /***************************************************************************
1207 Modifies an existing struct samu
1208 ****************************************************************************/
1209
1210 static NTSTATUS tdbsam_update_sam_account (struct pdb_methods *my_methods, struct samu *newpwd)
1211 {
1212 if ( !tdb_update_sam(my_methods, newpwd, TDB_MODIFY) )
1213 return NT_STATUS_UNSUCCESSFUL;
1214
1215 return NT_STATUS_OK;
1216 }
1217
1218 /***************************************************************************
1219 Adds an existing struct samu
1220 ****************************************************************************/
1221
1222 static NTSTATUS tdbsam_add_sam_account (struct pdb_methods *my_methods, struct samu *newpwd)
1223 {
1224 if ( !tdb_update_sam(my_methods, newpwd, TDB_INSERT) )
1225 return NT_STATUS_UNSUCCESSFUL;
1226
1227 return NT_STATUS_OK;
1228 }
1229
1230 /***************************************************************************
1231 Renames a struct samu
1232 - check for the posix user/rename user script
1233 - Add and lock the new user record
1234 - rename the posix user
1235 - rewrite the rid->username record
1236 - delete the old user
1237 - unlock the new user record
1238 ***************************************************************************/
1239 static NTSTATUS tdbsam_rename_sam_account(struct pdb_methods *my_methods,
1240 struct samu *old_acct,
1241 const char *newname)
1242 {
1243 struct samu *new_acct = NULL;
1244 char *rename_script = NULL;
1245 int rename_ret;
1246 fstring oldname_lower;
1247 fstring newname_lower;
1248
1249 /* can't do anything without an external script */
1250
1251 if ( !(new_acct = samu_new( talloc_tos() )) ) {
1252 return NT_STATUS_NO_MEMORY;
1253 }
1254
1255 rename_script = talloc_strdup(new_acct, lp_renameuser_script());
1256 if (!rename_script) {
1257 TALLOC_FREE(new_acct);
1258 return NT_STATUS_NO_MEMORY;
1259 }
1260 if (!*rename_script) {
1261 TALLOC_FREE(new_acct);
1262 return NT_STATUS_ACCESS_DENIED;
1263 }
1264
1265 if ( !pdb_copy_sam_account(new_acct, old_acct)
1266 || !pdb_set_username(new_acct, newname, PDB_CHANGED))
1267 {
1268 TALLOC_FREE(new_acct);
1269 return NT_STATUS_NO_MEMORY;
1270 }
1271
1272 /* open the database */
1273 if ( !tdbsam_open( tdbsam_filename ) ) {
1274 DEBUG(0, ("tdbsam_getsampwnam: failed to open %s!\n",
1275 tdbsam_filename));
1276 TALLOC_FREE(new_acct);
1277 return NT_STATUS_ACCESS_DENIED;
1278 }
1279
1280 if (db_sam->transaction_start(db_sam) != 0) {
1281 DEBUG(0, ("Could not start transaction\n"));
1282 TALLOC_FREE(new_acct);
1283 return NT_STATUS_ACCESS_DENIED;
1284
1285 }
1286
1287 /* add the new account and lock it */
1288 if ( !tdb_update_samacct_only(new_acct, TDB_INSERT) ) {
1289 goto cancel;
1290 }
1291
1292 /* Rename the posix user. Follow the semantics of _samr_create_user()
1293 so that we lower case the posix name but preserve the case in passdb */
1294
1295 fstrcpy( oldname_lower, pdb_get_username(old_acct) );
1296 strlower_m( oldname_lower );
1297
1298 fstrcpy( newname_lower, newname );
1299 strlower_m( newname_lower );
1300
1301 rename_script = talloc_string_sub2(new_acct,
1302 rename_script,
1303 "%unew",
1304 newname_lower,
1305 true,
1306 false,
1307 true);
1308 if (!rename_script) {
1309 goto cancel;
1310 }
1311 rename_script = talloc_string_sub2(new_acct,
1312 rename_script,
1313 "%uold",
1314 oldname_lower,
1315 true,
1316 false,
1317 true);
1318 if (!rename_script) {
1319 goto cancel;
1320 }
1321 rename_ret = smbrun(rename_script, NULL);
1322
1323 DEBUG(rename_ret ? 0 : 3,("Running the command `%s' gave %d\n",
1324 rename_script, rename_ret));
1325
1326 if (rename_ret != 0) {
1327 goto cancel;
1328 }
1329
1330 smb_nscd_flush_user_cache();
1331
1332 /* rewrite the rid->username record */
1333
1334 if ( !tdb_update_ridrec_only( new_acct, TDB_MODIFY) ) {
1335 goto cancel;
1336 }
1337
1338 tdb_delete_samacct_only( old_acct );
1339
1340 if (db_sam->transaction_commit(db_sam) != 0) {
1341 /*
1342 * Ok, we're screwed. We've changed the posix account, but
1343 * could not adapt passdb.tdb. Shall we change the posix
1344 * account back?
1345 */
1346 DEBUG(0, ("transaction_commit failed\n"));
1347 TALLOC_FREE(new_acct);
1348 return NT_STATUS_INTERNAL_DB_CORRUPTION;
1349 }
1350
1351 TALLOC_FREE(new_acct );
1352 return NT_STATUS_OK;
1353
1354 cancel:
1355 if (db_sam->transaction_cancel(db_sam) != 0) {
1356 smb_panic("transaction_cancel failed");
1357 }
1358
1359 TALLOC_FREE(new_acct);
1360
1361 return NT_STATUS_ACCESS_DENIED;
1362 }
1363
1364 static bool tdbsam_rid_algorithm(struct pdb_methods *methods)
1365 {
1366 return False;
1367 }
1368
1369 /*
1370 * Historically, winbind was responsible for allocating RIDs, so the next RID
1371 * value was stored in winbindd_idmap.tdb. It has been moved to passdb now,
1372 * but for compatibility reasons we still keep the the next RID counter in
1373 * winbindd_idmap.tdb.
1374 */
1375
1376 /*****************************************************************************
1377 Initialise idmap database. For now (Dec 2005) this is a copy of the code in
1378 sam/idmap_tdb.c. Maybe at a later stage we can remove that capability from
1379 winbind completely and store the RID counter in passdb.tdb.
1380
1381 Dont' fully initialize with the HWM values, if it's new, we're only
1382 interested in the RID counter.
1383 *****************************************************************************/
1384
1385 static bool init_idmap_tdb(TDB_CONTEXT *tdb)
1386 {
1387 int32 version;
1388
1389 if (tdb_lock_bystring(tdb, "IDMAP_VERSION") != 0) {
1390 DEBUG(0, ("Could not lock IDMAP_VERSION\n"));
1391 return False;
1392 }
1393
1394 version = tdb_fetch_int32(tdb, "IDMAP_VERSION");
1395
1396 if (version == -1) {
1397 /* No key found, must be a new db */
1398 if (tdb_store_int32(tdb, "IDMAP_VERSION",
1399 IDMAP_VERSION) != 0) {
1400 DEBUG(0, ("Could not store IDMAP_VERSION\n"));
1401 tdb_unlock_bystring(tdb, "IDMAP_VERSION");
1402 return False;
1403 }
1404 version = IDMAP_VERSION;
1405 }
1406
1407 if (version != IDMAP_VERSION) {
1408 DEBUG(0, ("Expected IDMAP_VERSION=%d, found %d. Please "
1409 "start winbind once\n", IDMAP_VERSION, version));
1410 tdb_unlock_bystring(tdb, "IDMAP_VERSION");
1411 return False;
1412 }
1413
1414 tdb_unlock_bystring(tdb, "IDMAP_VERSION");
1415 return True;
1416 }
1417
1418 static bool tdbsam_new_rid(struct pdb_methods *methods, uint32 *prid)
1419 {
1420 TDB_CONTEXT *tdb;
1421 uint32 rid;
1422 bool ret = False;
1423
1424 tdb = tdb_open_log(state_path("winbindd_idmap.tdb"), 0,
1425 TDB_DEFAULT, O_RDWR | O_CREAT, 0644);
1426
1427 if (tdb == NULL) {
1428 DEBUG(1, ("Could not open idmap: %s\n", strerror(errno)));
1429 goto done;
1430 }
1431
1432 if (!init_idmap_tdb(tdb)) {
1433 DEBUG(1, ("Could not init idmap\n"));
1434 goto done;
1435 }
1436
1437 rid = BASE_RID; /* Default if not set */
1438
1439 if (!tdb_change_uint32_atomic(tdb, "RID_COUNTER", &rid, 1)) {
1440 DEBUG(3, ("tdbsam_new_rid: Failed to increase RID_COUNTER\n"));
1441 goto done;
1442 }
1443
1444 *prid = rid;
1445 ret = True;
1446
1447 done:
1448 if ((tdb != NULL) && (tdb_close(tdb) != 0)) {
1449 smb_panic("tdb_close(idmap_tdb) failed");
1450 }
1451
1452 return ret;
1453 }
1454
1455 struct tdbsam_search_state {
1456 struct pdb_methods *methods;
1457 uint32_t acct_flags;
1458
1459 uint32_t *rids;
1460 uint32_t num_rids;
1461 ssize_t array_size;
1462 uint32_t current;
1463 };
1464
1465 static int tdbsam_collect_rids(struct db_record *rec, void *private_data)
1466 {
1467 struct tdbsam_search_state *state = talloc_get_type_abort(
1468 private_data, struct tdbsam_search_state);
1469 size_t prefixlen = strlen(RIDPREFIX);
1470 uint32 rid;
1471
1472 if ((rec->key.dsize < prefixlen)
1473 || (strncmp((char *)rec->key.dptr, RIDPREFIX, prefixlen))) {
1474 return 0;
1475 }
1476
1477 rid = strtoul((char *)rec->key.dptr+prefixlen, NULL, 16);
1478
1479 ADD_TO_LARGE_ARRAY(state, uint32, rid, &state->rids, &state->num_rids,
1480 &state->array_size);
1481
1482 return 0;
1483 }
1484
1485 static void tdbsam_search_end(struct pdb_search *search)
1486 {
1487 struct tdbsam_search_state *state = talloc_get_type_abort(
1488 search->private_data, struct tdbsam_search_state);
1489 TALLOC_FREE(state);
1490 }
1491
1492 static bool tdbsam_search_next_entry(struct pdb_search *search,
1493 struct samr_displayentry *entry)
1494 {
1495 struct tdbsam_search_state *state = talloc_get_type_abort(
1496 search->private_data, struct tdbsam_search_state);
1497 struct samu *user = NULL;
1498 NTSTATUS status;
1499 uint32_t rid;
1500
1501 again:
1502 TALLOC_FREE(user);
1503 user = samu_new(talloc_tos());
1504 if (user == NULL) {
1505 DEBUG(0, ("samu_new failed\n"));
1506 return false;
1507 }
1508
1509 if (state->current == state->num_rids) {
1510 return false;
1511 }
1512
1513 rid = state->rids[state->current++];
1514
1515 status = tdbsam_getsampwrid(state->methods, user, rid);
1516
1517 if (NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)) {
1518 /*
1519 * Someone has deleted that user since we listed the RIDs
1520 */
1521 goto again;
1522 }
1523
1524 if (!NT_STATUS_IS_OK(status)) {
1525 DEBUG(10, ("tdbsam_getsampwrid failed: %s\n",
1526 nt_errstr(status)));
1527 TALLOC_FREE(user);
1528 return false;
1529 }
1530
1531 if ((state->acct_flags != 0) &&
1532 ((state->acct_flags & pdb_get_acct_ctrl(user)) == 0)) {
1533 goto again;
1534 }
1535
1536 entry->acct_flags = pdb_get_acct_ctrl(user);
1537 entry->rid = rid;
1538 entry->account_name = talloc_strdup(
1539 search->mem_ctx, pdb_get_username(user));
1540 entry->fullname = talloc_strdup(
1541 search->mem_ctx, pdb_get_fullname(user));
1542 entry->description = talloc_strdup(
1543 search->mem_ctx, pdb_get_acct_desc(user));
1544
1545 TALLOC_FREE(user);
1546
1547 if ((entry->account_name == NULL) || (entry->fullname == NULL)
1548 || (entry->description == NULL)) {
1549 DEBUG(0, ("talloc_strdup failed\n"));
1550 return false;
1551 }
1552
1553 return true;
1554 }
1555
1556 static bool tdbsam_search_users(struct pdb_methods *methods,
1557 struct pdb_search *search,
1558 uint32 acct_flags)
1559 {
1560 struct tdbsam_search_state *state;
1561
1562 if (!tdbsam_open(tdbsam_filename)) {
1563 DEBUG(0,("tdbsam_getsampwnam: failed to open %s!\n",
1564 tdbsam_filename));
1565 return false;
1566 }
1567
1568 state = TALLOC_ZERO_P(search->mem_ctx, struct tdbsam_search_state);
1569 if (state == NULL) {
1570 DEBUG(0, ("talloc failed\n"));
1571 return false;
1572 }
1573 state->acct_flags = acct_flags;
1574 state->methods = methods;
1575
1576 db_sam->traverse_read(db_sam, tdbsam_collect_rids, state);
1577
1578 search->private_data = state;
1579 search->next_entry = tdbsam_search_next_entry;
1580 search->search_end = tdbsam_search_end;
1581
1582 return true;
1583 }
1584
1585 /*********************************************************************
1586 Initialize the tdb sam backend. Setup the dispath table of methods,
1587 open the tdb, etc...
1588 *********************************************************************/
1589
1590 static NTSTATUS pdb_init_tdbsam(struct pdb_methods **pdb_method, const char *location)
1591 {
1592 NTSTATUS nt_status;
1593 char *tdbfile = NULL;
1594 const char *pfile = location;
1595
1596 if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
1597 return nt_status;
1598 }
1599
1600 (*pdb_method)->name = "tdbsam";
1601
1602 (*pdb_method)->getsampwnam = tdbsam_getsampwnam;
1603 (*pdb_method)->getsampwsid = tdbsam_getsampwsid;
1604 (*pdb_method)->add_sam_account = tdbsam_add_sam_account;
1605 (*pdb_method)->update_sam_account = tdbsam_update_sam_account;
1606 (*pdb_method)->delete_sam_account = tdbsam_delete_sam_account;
1607 (*pdb_method)->rename_sam_account = tdbsam_rename_sam_account;
1608 (*pdb_method)->search_users = tdbsam_search_users;
1609
1610 (*pdb_method)->rid_algorithm = tdbsam_rid_algorithm;
1611 (*pdb_method)->new_rid = tdbsam_new_rid;
1612
1613 /* save the path for later */
1614
1615 if (!location) {
1616 if (asprintf(&tdbfile, "%s/%s", lp_private_dir(),
1617 PASSDB_FILE_NAME) < 0) {
1618 return NT_STATUS_NO_MEMORY;
1619 }
1620 pfile = tdbfile;
1621 }
1622 tdbsam_filename = SMB_STRDUP(pfile);
1623 if (!tdbsam_filename) {
1624 return NT_STATUS_NO_MEMORY;
1625 }
1626 SAFE_FREE(tdbfile);
1627
1628 /* no private data */
1629
1630 (*pdb_method)->private_data = NULL;
1631 (*pdb_method)->free_private_data = NULL;
1632
1633 return NT_STATUS_OK;
1634 }
1635
1636 NTSTATUS pdb_tdbsam_init(void)
1637 {
1638 return smb_register_passdb(PASSDB_INTERFACE_VERSION, "tdbsam", pdb_init_tdbsam);
1639 }
reg import