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regedit: improvements for hexedit
[Samba.git] / source3 / smbd / smbXsrv_open.c
blobbb2084ddbc11b0a0fb4296642589a31c59b69c8b
1 /*
2 Unix SMB/CIFS implementation.
3
4 Copyright (C) Stefan Metzmacher 2012
5 Copyright (C) Michael Adam 2012
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "system/filesys.h"
23 #include "smbd/smbd.h"
24 #include "smbd/globals.h"
25 #include "dbwrap/dbwrap.h"
26 #include "dbwrap/dbwrap_rbt.h"
27 #include "dbwrap/dbwrap_open.h"
28 #include "../libcli/security/security.h"
29 #include "messages.h"
30 #include "lib/util/util_tdb.h"
31 #include "librpc/gen_ndr/ndr_smbXsrv.h"
32 #include <ccan/hash/hash.h>
33 #include "serverid.h"
34
35 struct smbXsrv_open_table {
36 struct {
37 struct db_context *db_ctx;
38 uint32_t lowest_id;
39 uint32_t highest_id;
40 uint32_t max_opens;
41 uint32_t num_opens;
42 } local;
43 struct {
44 struct db_context *db_ctx;
45 } global;
46 };
47
48 static struct db_context *smbXsrv_open_global_db_ctx = NULL;
49
50 NTSTATUS smbXsrv_open_global_init(void)
51 {
52 const char *global_path = NULL;
53 struct db_context *db_ctx = NULL;
54
55 if (smbXsrv_open_global_db_ctx != NULL) {
56 return NT_STATUS_OK;
57 }
58
59 global_path = lock_path("smbXsrv_open_global.tdb");
60
61 db_ctx = db_open(NULL, global_path,
62 0, /* hash_size */
63 TDB_DEFAULT |
64 TDB_CLEAR_IF_FIRST |
65 TDB_INCOMPATIBLE_HASH,
66 O_RDWR | O_CREAT, 0600,
67 DBWRAP_LOCK_ORDER_1,
68 DBWRAP_FLAG_NONE);
69 if (db_ctx == NULL) {
70 NTSTATUS status;
71
72 status = map_nt_error_from_unix_common(errno);
73
74 return status;
75 }
76
77 smbXsrv_open_global_db_ctx = db_ctx;
78
79 return NT_STATUS_OK;
80 }
81
82 /*
83 * NOTE:
84 * We need to store the keys in big endian so that dbwrap_rbt's memcmp
85 * has the same result as integer comparison between the uint32_t
86 * values.
87 *
88 * TODO: implement string based key
89 */
90
91 #define SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE sizeof(uint32_t)
92
93 static TDB_DATA smbXsrv_open_global_id_to_key(uint32_t id,
94 uint8_t *key_buf)
95 {
96 TDB_DATA key;
97
98 RSIVAL(key_buf, 0, id);
99
100 key = make_tdb_data(key_buf, SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE);
101
102 return key;
103 }
104
105 #if 0
106 static NTSTATUS smbXsrv_open_global_key_to_id(TDB_DATA key, uint32_t *id)
107 {
108 if (id == NULL) {
109 return NT_STATUS_INVALID_PARAMETER;
110 }
111
112 if (key.dsize != SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE) {
113 return NT_STATUS_INTERNAL_DB_CORRUPTION;
114 }
115
116 *id = RIVAL(key.dptr, 0);
117
118 return NT_STATUS_OK;
119 }
120 #endif
121
122 #define SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE sizeof(uint32_t)
123
124 static TDB_DATA smbXsrv_open_local_id_to_key(uint32_t id,
125 uint8_t *key_buf)
126 {
127 TDB_DATA key;
128
129 RSIVAL(key_buf, 0, id);
130
131 key = make_tdb_data(key_buf, SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE);
132
133 return key;
134 }
135
136 static NTSTATUS smbXsrv_open_local_key_to_id(TDB_DATA key, uint32_t *id)
137 {
138 if (id == NULL) {
139 return NT_STATUS_INVALID_PARAMETER;
140 }
141
142 if (key.dsize != SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE) {
143 return NT_STATUS_INTERNAL_DB_CORRUPTION;
144 }
145
146 *id = RIVAL(key.dptr, 0);
147
148 return NT_STATUS_OK;
149 }
150
151 static NTSTATUS smbXsrv_open_table_init(struct smbXsrv_connection *conn,
152 uint32_t lowest_id,
153 uint32_t highest_id,
154 uint32_t max_opens)
155 {
156 struct smbXsrv_client *client = conn->client;
157 struct smbXsrv_open_table *table;
158 NTSTATUS status;
159 uint64_t max_range;
160
161 if (lowest_id > highest_id) {
162 return NT_STATUS_INTERNAL_ERROR;
163 }
164
165 max_range = highest_id;
166 max_range -= lowest_id;
167 max_range += 1;
168
169 if (max_opens > max_range) {
170 return NT_STATUS_INTERNAL_ERROR;
171 }
172
173 table = talloc_zero(client, struct smbXsrv_open_table);
174 if (table == NULL) {
175 return NT_STATUS_NO_MEMORY;
176 }
177
178 table->local.db_ctx = db_open_rbt(table);
179 if (table->local.db_ctx == NULL) {
180 TALLOC_FREE(table);
181 return NT_STATUS_NO_MEMORY;
182 }
183 table->local.lowest_id = lowest_id;
184 table->local.highest_id = highest_id;
185 table->local.max_opens = max_opens;
186
187 status = smbXsrv_open_global_init();
188 if (!NT_STATUS_IS_OK(status)) {
189 TALLOC_FREE(table);
190 return status;
191 }
192
193 table->global.db_ctx = smbXsrv_open_global_db_ctx;
194
195 client->open_table = table;
196 return NT_STATUS_OK;
197 }
198
199 struct smbXsrv_open_local_allocate_state {
200 const uint32_t lowest_id;
201 const uint32_t highest_id;
202 uint32_t last_id;
203 uint32_t useable_id;
204 NTSTATUS status;
205 };
206
207 static int smbXsrv_open_local_allocate_traverse(struct db_record *rec,
208 void *private_data)
209 {
210 struct smbXsrv_open_local_allocate_state *state =
211 (struct smbXsrv_open_local_allocate_state *)private_data;
212 TDB_DATA key = dbwrap_record_get_key(rec);
213 uint32_t id = 0;
214 NTSTATUS status;
215
216 status = smbXsrv_open_local_key_to_id(key, &id);
217 if (!NT_STATUS_IS_OK(status)) {
218 state->status = status;
219 return -1;
220 }
221
222 if (id <= state->last_id) {
223 state->status = NT_STATUS_INTERNAL_DB_CORRUPTION;
224 return -1;
225 }
226 state->last_id = id;
227
228 if (id > state->useable_id) {
229 state->status = NT_STATUS_OK;
230 return -1;
231 }
232
233 if (state->useable_id == state->highest_id) {
234 state->status = NT_STATUS_INSUFFICIENT_RESOURCES;
235 return -1;
236 }
237
238 state->useable_id +=1;
239 return 0;
240 }
241
242 static NTSTATUS smbXsrv_open_local_allocate_id(struct db_context *db,
243 uint32_t lowest_id,
244 uint32_t highest_id,
245 TALLOC_CTX *mem_ctx,
246 struct db_record **_rec,
247 uint32_t *_id)
248 {
249 struct smbXsrv_open_local_allocate_state state = {
250 .lowest_id = lowest_id,
251 .highest_id = highest_id,
252 .last_id = 0,
253 .useable_id = lowest_id,
254 .status = NT_STATUS_INTERNAL_ERROR,
255 };
256 uint32_t i;
257 uint32_t range;
258 NTSTATUS status;
259 int count = 0;
260
261 *_rec = NULL;
262 *_id = 0;
263
264 if (lowest_id > highest_id) {
265 return NT_STATUS_INSUFFICIENT_RESOURCES;
266 }
267
268 /*
269 * first we try randomly
270 */
271 range = (highest_id - lowest_id) + 1;
272
273 for (i = 0; i < (range / 2); i++) {
274 uint32_t id;
275 uint8_t key_buf[SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE];
276 TDB_DATA key;
277 TDB_DATA val;
278 struct db_record *rec = NULL;
279
280 id = generate_random() % range;
281 id += lowest_id;
282
283 if (id < lowest_id) {
284 id = lowest_id;
285 }
286 if (id > highest_id) {
287 id = highest_id;
288 }
289
290 key = smbXsrv_open_local_id_to_key(id, key_buf);
291
292 rec = dbwrap_fetch_locked(db, mem_ctx, key);
293 if (rec == NULL) {
294 return NT_STATUS_INSUFFICIENT_RESOURCES;
295 }
296
297 val = dbwrap_record_get_value(rec);
298 if (val.dsize != 0) {
299 TALLOC_FREE(rec);
300 continue;
301 }
302
303 *_rec = rec;
304 *_id = id;
305 return NT_STATUS_OK;
306 }
307
308 /*
309 * if the range is almost full,
310 * we traverse the whole table
311 * (this relies on sorted behavior of dbwrap_rbt)
312 */
313 status = dbwrap_traverse_read(db, smbXsrv_open_local_allocate_traverse,
314 &state, &count);
315 if (NT_STATUS_IS_OK(status)) {
316 if (NT_STATUS_IS_OK(state.status)) {
317 return NT_STATUS_INTERNAL_ERROR;
318 }
319
320 if (!NT_STATUS_EQUAL(state.status, NT_STATUS_INTERNAL_ERROR)) {
321 return state.status;
322 }
323
324 if (state.useable_id <= state.highest_id) {
325 state.status = NT_STATUS_OK;
326 } else {
327 return NT_STATUS_INSUFFICIENT_RESOURCES;
328 }
329 } else if (!NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_DB_CORRUPTION)) {
330 /*
331 * Here we really expect NT_STATUS_INTERNAL_DB_CORRUPTION!
332 *
333 * If we get anything else it is an error, because it
334 * means we did not manage to find a free slot in
335 * the db.
336 */
337 return NT_STATUS_INSUFFICIENT_RESOURCES;
338 }
339
340 if (NT_STATUS_IS_OK(state.status)) {
341 uint32_t id;
342 uint8_t key_buf[SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE];
343 TDB_DATA key;
344 TDB_DATA val;
345 struct db_record *rec = NULL;
346
347 id = state.useable_id;
348
349 key = smbXsrv_open_local_id_to_key(id, key_buf);
350
351 rec = dbwrap_fetch_locked(db, mem_ctx, key);
352 if (rec == NULL) {
353 return NT_STATUS_INSUFFICIENT_RESOURCES;
354 }
355
356 val = dbwrap_record_get_value(rec);
357 if (val.dsize != 0) {
358 TALLOC_FREE(rec);
359 return NT_STATUS_INTERNAL_DB_CORRUPTION;
360 }
361
362 *_rec = rec;
363 *_id = id;
364 return NT_STATUS_OK;
365 }
366
367 return state.status;
368 }
369
370 struct smbXsrv_open_local_fetch_state {
371 struct smbXsrv_open *op;
372 NTSTATUS status;
373 };
374
375 static void smbXsrv_open_local_fetch_parser(TDB_DATA key, TDB_DATA data,
376 void *private_data)
377 {
378 struct smbXsrv_open_local_fetch_state *state =
379 (struct smbXsrv_open_local_fetch_state *)private_data;
380 void *ptr;
381
382 if (data.dsize != sizeof(ptr)) {
383 state->status = NT_STATUS_INTERNAL_DB_ERROR;
384 return;
385 }
386
387 memcpy(&ptr, data.dptr, data.dsize);
388 state->op = talloc_get_type_abort(ptr, struct smbXsrv_open);
389 state->status = NT_STATUS_OK;
390 }
391
392 static NTSTATUS smbXsrv_open_local_lookup(struct smbXsrv_open_table *table,
393 uint32_t open_local_id,
394 uint32_t open_global_id,
395 NTTIME now,
396 struct smbXsrv_open **_open)
397 {
398 struct smbXsrv_open_local_fetch_state state = {
399 .op = NULL,
400 .status = NT_STATUS_INTERNAL_ERROR,
401 };
402 uint8_t key_buf[SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE];
403 TDB_DATA key;
404 NTSTATUS status;
405
406 *_open = NULL;
407
408 if (open_local_id == 0) {
409 return NT_STATUS_FILE_CLOSED;
410 }
411
412 if (table == NULL) {
413 /* this might happen before the end of negprot */
414 return NT_STATUS_FILE_CLOSED;
415 }
416
417 if (table->local.db_ctx == NULL) {
418 return NT_STATUS_INTERNAL_ERROR;
419 }
420
421 key = smbXsrv_open_local_id_to_key(open_local_id, key_buf);
422
423 status = dbwrap_parse_record(table->local.db_ctx, key,
424 smbXsrv_open_local_fetch_parser,
425 &state);
426 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
427 return NT_STATUS_FILE_CLOSED;
428 } else if (!NT_STATUS_IS_OK(status)) {
429 return status;
430 }
431 if (!NT_STATUS_IS_OK(state.status)) {
432 return state.status;
433 }
434
435 if (NT_STATUS_EQUAL(state.op->status, NT_STATUS_FILE_CLOSED)) {
436 return NT_STATUS_FILE_CLOSED;
437 }
438
439 if (open_global_id == 0) {
440 /* make the global check a no-op for SMB1 */
441 open_global_id = state.op->global->open_global_id;
442 }
443
444 if (state.op->global->open_global_id != open_global_id) {
445 return NT_STATUS_FILE_CLOSED;
446 }
447
448 if (now != 0) {
449 state.op->idle_time = now;
450 }
451
452 *_open = state.op;
453 return state.op->status;
454 }
455
456 static int smbXsrv_open_global_destructor(struct smbXsrv_open_global0 *global)
457 {
458 return 0;
459 }
460
461 static void smbXsrv_open_global_verify_record(struct db_record *db_rec,
462 bool *is_free,
463 bool *was_free,
464 TALLOC_CTX *mem_ctx,
465 struct smbXsrv_open_global0 **_g);
466
467 static NTSTATUS smbXsrv_open_global_allocate(struct db_context *db,
468 TALLOC_CTX *mem_ctx,
469 struct smbXsrv_open_global0 **_global)
470 {
471 uint32_t i;
472 struct smbXsrv_open_global0 *global = NULL;
473 uint32_t last_free = 0;
474 const uint32_t min_tries = 3;
475
476 *_global = NULL;
477
478 global = talloc_zero(mem_ctx, struct smbXsrv_open_global0);
479 if (global == NULL) {
480 return NT_STATUS_NO_MEMORY;
481 }
482 talloc_set_destructor(global, smbXsrv_open_global_destructor);
483
484 /*
485 * Here we just randomly try the whole 32-bit space
486 *
487 * We use just 32-bit, because we want to reuse the
488 * ID for SRVSVC.
489 */
490 for (i = 0; i < UINT32_MAX; i++) {
491 bool is_free = false;
492 bool was_free = false;
493 uint32_t id;
494 uint8_t key_buf[SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE];
495 TDB_DATA key;
496
497 if (i >= min_tries && last_free != 0) {
498 id = last_free;
499 } else {
500 id = generate_random();
501 }
502 if (id == 0) {
503 id++;
504 }
505 if (id == UINT32_MAX) {
506 id--;
507 }
508
509 key = smbXsrv_open_global_id_to_key(id, key_buf);
510
511 global->db_rec = dbwrap_fetch_locked(db, mem_ctx, key);
512 if (global->db_rec == NULL) {
513 talloc_free(global);
514 return NT_STATUS_INSUFFICIENT_RESOURCES;
515 }
516
517 smbXsrv_open_global_verify_record(global->db_rec,
518 &is_free,
519 &was_free,
520 NULL, NULL);
521
522 if (!is_free) {
523 TALLOC_FREE(global->db_rec);
524 continue;
525 }
526
527 if (!was_free && i < min_tries) {
528 /*
529 * The session_id is free now,
530 * but was not free before.
531 *
532 * This happens if a smbd crashed
533 * and did not cleanup the record.
534 *
535 * If this is one of our first tries,
536 * then we try to find a real free one.
537 */
538 if (last_free == 0) {
539 last_free = id;
540 }
541 TALLOC_FREE(global->db_rec);
542 continue;
543 }
544
545 global->open_global_id = id;
546
547 *_global = global;
548 return NT_STATUS_OK;
549 }
550
551 /* should not be reached */
552 talloc_free(global);
553 return NT_STATUS_INTERNAL_ERROR;
554 }
555
556 static void smbXsrv_open_global_verify_record(struct db_record *db_rec,
557 bool *is_free,
558 bool *was_free,
559 TALLOC_CTX *mem_ctx,
560 struct smbXsrv_open_global0 **_g)
561 {
562 TDB_DATA key;
563 TDB_DATA val;
564 DATA_BLOB blob;
565 struct smbXsrv_open_globalB global_blob;
566 enum ndr_err_code ndr_err;
567 struct smbXsrv_open_global0 *global = NULL;
568 bool exists;
569 TALLOC_CTX *frame = talloc_stackframe();
570
571 *is_free = false;
572
573 if (was_free) {
574 *was_free = false;
575 }
576 if (_g) {
577 *_g = NULL;
578 }
579
580 key = dbwrap_record_get_key(db_rec);
581
582 val = dbwrap_record_get_value(db_rec);
583 if (val.dsize == 0) {
584 DEBUG(10, ("%s: empty value\n", __func__));
585 TALLOC_FREE(frame);
586 *is_free = true;
587 if (was_free) {
588 *was_free = true;
589 }
590 return;
591 }
592
593 blob = data_blob_const(val.dptr, val.dsize);
594
595 ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
596 (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_open_globalB);
597 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
598 NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
599 DEBUG(1,("smbXsrv_open_global_verify_record: "
600 "key '%s' ndr_pull_struct_blob - %s\n",
601 hex_encode_talloc(frame, key.dptr, key.dsize),
602 nt_errstr(status)));
603 TALLOC_FREE(frame);
604 return;
605 }
606
607 DEBUG(10,("smbXsrv_open_global_verify_record\n"));
608 if (CHECK_DEBUGLVL(10)) {
609 NDR_PRINT_DEBUG(smbXsrv_open_globalB, &global_blob);
610 }
611
612 if (global_blob.version != SMBXSRV_VERSION_0) {
613 DEBUG(0,("smbXsrv_open_global_verify_record: "
614 "key '%s' use unsupported version %u\n",
615 hex_encode_talloc(frame, key.dptr, key.dsize),
616 global_blob.version));
617 NDR_PRINT_DEBUG(smbXsrv_open_globalB, &global_blob);
618 TALLOC_FREE(frame);
619 return;
620 }
621
622 global = global_blob.info.info0;
623
624 if (server_id_is_disconnected(&global->server_id)) {
625 exists = true;
626 } else {
627 exists = serverid_exists(&global->server_id);
628 }
629 if (!exists) {
630 DEBUG(2,("smbXsrv_open_global_verify_record: "
631 "key '%s' server_id %s does not exist.\n",
632 hex_encode_talloc(frame, key.dptr, key.dsize),
633 server_id_str(frame, &global->server_id)));
634 if (CHECK_DEBUGLVL(2)) {
635 NDR_PRINT_DEBUG(smbXsrv_open_globalB, &global_blob);
636 }
637 TALLOC_FREE(frame);
638 dbwrap_record_delete(db_rec);
639 *is_free = true;
640 return;
641 }
642
643 if (_g) {
644 *_g = talloc_move(mem_ctx, &global);
645 }
646 TALLOC_FREE(frame);
647 }
648
649 static NTSTATUS smbXsrv_open_global_store(struct smbXsrv_open_global0 *global)
650 {
651 struct smbXsrv_open_globalB global_blob;
652 DATA_BLOB blob = data_blob_null;
653 TDB_DATA key;
654 TDB_DATA val;
655 NTSTATUS status;
656 enum ndr_err_code ndr_err;
657
658 /*
659 * TODO: if we use other versions than '0'
660 * we would add glue code here, that would be able to
661 * store the information in the old format.
662 */
663
664 if (global->db_rec == NULL) {
665 return NT_STATUS_INTERNAL_ERROR;
666 }
667
668 key = dbwrap_record_get_key(global->db_rec);
669 val = dbwrap_record_get_value(global->db_rec);
670
671 ZERO_STRUCT(global_blob);
672 global_blob.version = smbXsrv_version_global_current();
673 if (val.dsize >= 8) {
674 global_blob.seqnum = IVAL(val.dptr, 4);
675 }
676 global_blob.seqnum += 1;
677 global_blob.info.info0 = global;
678
679 ndr_err = ndr_push_struct_blob(&blob, global->db_rec, &global_blob,
680 (ndr_push_flags_fn_t)ndr_push_smbXsrv_open_globalB);
681 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
682 status = ndr_map_error2ntstatus(ndr_err);
683 DEBUG(1,("smbXsrv_open_global_store: key '%s' ndr_push - %s\n",
684 hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
685 nt_errstr(status)));
686 TALLOC_FREE(global->db_rec);
687 return status;
688 }
689
690 val = make_tdb_data(blob.data, blob.length);
691 status = dbwrap_record_store(global->db_rec, val, TDB_REPLACE);
692 if (!NT_STATUS_IS_OK(status)) {
693 DEBUG(1,("smbXsrv_open_global_store: key '%s' store - %s\n",
694 hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
695 nt_errstr(status)));
696 TALLOC_FREE(global->db_rec);
697 return status;
698 }
699
700 if (CHECK_DEBUGLVL(10)) {
701 DEBUG(10,("smbXsrv_open_global_store: key '%s' stored\n",
702 hex_encode_talloc(global->db_rec, key.dptr, key.dsize)));
703 NDR_PRINT_DEBUG(smbXsrv_open_globalB, &global_blob);
704 }
705
706 TALLOC_FREE(global->db_rec);
707
708 return NT_STATUS_OK;
709 }
710
711 static NTSTATUS smbXsrv_open_global_lookup(struct smbXsrv_open_table *table,
712 uint32_t open_global_id,
713 TALLOC_CTX *mem_ctx,
714 struct smbXsrv_open_global0 **_global)
715 {
716 TDB_DATA key;
717 uint8_t key_buf[SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE];
718 struct db_record *global_rec = NULL;
719 bool is_free = false;
720
721 *_global = NULL;
722
723 if (table->global.db_ctx == NULL) {
724 return NT_STATUS_INTERNAL_ERROR;
725 }
726
727 key = smbXsrv_open_global_id_to_key(open_global_id, key_buf);
728
729 global_rec = dbwrap_fetch_locked(table->global.db_ctx, mem_ctx, key);
730 if (global_rec == NULL) {
731 DEBUG(0, ("smbXsrv_open_global_lookup(0x%08x): "
732 "Failed to lock global key '%s'\n",
733 open_global_id,
734 hex_encode_talloc(talloc_tos(), key.dptr,
735 key.dsize)));
736 return NT_STATUS_INTERNAL_DB_ERROR;
737 }
738
739 smbXsrv_open_global_verify_record(global_rec,
740 &is_free,
741 NULL,
742 mem_ctx,
743 _global);
744 if (is_free) {
745 DEBUG(10, ("%s: is_free=true\n", __func__));
746 talloc_free(global_rec);
747 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
748 }
749
750 (*_global)->db_rec = talloc_move(*_global, &global_rec);
751
752 talloc_set_destructor(*_global, smbXsrv_open_global_destructor);
753
754 return NT_STATUS_OK;
755 }
756
757 static int smbXsrv_open_destructor(struct smbXsrv_open *op)
758 {
759 NTSTATUS status;
760
761 status = smbXsrv_open_close(op, 0);
762 if (!NT_STATUS_IS_OK(status)) {
763 DEBUG(0, ("smbXsrv_open_destructor: "
764 "smbXsrv_open_close() failed - %s\n",
765 nt_errstr(status)));
766 }
767
768 TALLOC_FREE(op->global);
769
770 return 0;
771 }
772
773 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
774 struct auth_session_info *session_info,
775 NTTIME now,
776 struct smbXsrv_open **_open)
777 {
778 struct smbXsrv_open_table *table = conn->client->open_table;
779 struct db_record *local_rec = NULL;
780 struct smbXsrv_open *op = NULL;
781 void *ptr = NULL;
782 TDB_DATA val;
783 struct smbXsrv_open_global0 *global = NULL;
784 NTSTATUS status;
785 struct dom_sid *current_sid = NULL;
786 struct security_token *current_token = NULL;
787
788 if (session_info == NULL) {
789 return NT_STATUS_INVALID_HANDLE;
790 }
791 current_token = session_info->security_token;
792
793 if (current_token == NULL) {
794 return NT_STATUS_INVALID_HANDLE;
795 }
796
797 if (current_token->num_sids > PRIMARY_USER_SID_INDEX) {
798 current_sid = &current_token->sids[PRIMARY_USER_SID_INDEX];
799 }
800
801 if (current_sid == NULL) {
802 return NT_STATUS_INVALID_HANDLE;
803 }
804
805 if (table->local.num_opens >= table->local.max_opens) {
806 return NT_STATUS_INSUFFICIENT_RESOURCES;
807 }
808
809 op = talloc_zero(table, struct smbXsrv_open);
810 if (op == NULL) {
811 return NT_STATUS_NO_MEMORY;
812 }
813 op->table = table;
814 op->status = NT_STATUS_OK; /* TODO: start with INTERNAL_ERROR */
815 op->idle_time = now;
816
817 status = smbXsrv_open_global_allocate(table->global.db_ctx,
818 op, &global);
819 if (!NT_STATUS_IS_OK(status)) {
820 TALLOC_FREE(op);
821 return status;
822 }
823 op->global = global;
824
825 status = smbXsrv_open_local_allocate_id(table->local.db_ctx,
826 table->local.lowest_id,
827 table->local.highest_id,
828 op,
829 &local_rec,
830 &op->local_id);
831 if (!NT_STATUS_IS_OK(status)) {
832 TALLOC_FREE(op);
833 return status;
834 }
835
836 global->open_persistent_id = global->open_global_id;
837 global->open_volatile_id = op->local_id;
838
839 global->server_id = messaging_server_id(conn->msg_ctx);
840 global->open_time = now;
841 global->open_owner = *current_sid;
842 if (conn->protocol >= PROTOCOL_SMB2_10) {
843 global->client_guid = conn->smb2.client.guid;
844 }
845
846 ptr = op;
847 val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
848 status = dbwrap_record_store(local_rec, val, TDB_REPLACE);
849 TALLOC_FREE(local_rec);
850 if (!NT_STATUS_IS_OK(status)) {
851 TALLOC_FREE(op);
852 return status;
853 }
854 table->local.num_opens += 1;
855
856 talloc_set_destructor(op, smbXsrv_open_destructor);
857
858 status = smbXsrv_open_global_store(global);
859 if (!NT_STATUS_IS_OK(status)) {
860 DEBUG(0,("smbXsrv_open_create: "
861 "global_id (0x%08x) store failed - %s\n",
862 op->global->open_global_id,
863 nt_errstr(status)));
864 TALLOC_FREE(op);
865 return status;
866 }
867
868 if (CHECK_DEBUGLVL(10)) {
869 struct smbXsrv_openB open_blob;
870
871 ZERO_STRUCT(open_blob);
872 open_blob.version = SMBXSRV_VERSION_0;
873 open_blob.info.info0 = op;
874
875 DEBUG(10,("smbXsrv_open_create: global_id (0x%08x) stored\n",
876 op->global->open_global_id));
877 NDR_PRINT_DEBUG(smbXsrv_openB, &open_blob);
878 }
879
880 *_open = op;
881 return NT_STATUS_OK;
882 }
883
884 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open)
885 {
886 uint8_t buf[8+8+8];
887 uint32_t ret;
888
889 SBVAL(buf, 0, _open->global->open_persistent_id);
890 SBVAL(buf, 8, _open->global->open_volatile_id);
891 SBVAL(buf, 16, _open->global->open_time);
892
893 ret = hash(buf, sizeof(buf), 0);
894
895 if (ret == 0) {
896 ret = 1;
897 }
898
899 return ret;
900 }
901
902 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *op)
903 {
904 struct smbXsrv_open_table *table = op->table;
905 NTSTATUS status;
906 uint8_t key_buf[SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE];
907 TDB_DATA key;
908
909 if (op->global->db_rec != NULL) {
910 DEBUG(0, ("smbXsrv_open_update(0x%08x): "
911 "Called with db_rec != NULL'\n",
912 op->global->open_global_id));
913 return NT_STATUS_INTERNAL_ERROR;
914 }
915
916 key = smbXsrv_open_global_id_to_key(op->global->open_global_id,
917 key_buf);
918
919 op->global->db_rec = dbwrap_fetch_locked(table->global.db_ctx,
920 op->global, key);
921 if (op->global->db_rec == NULL) {
922 DEBUG(0, ("smbXsrv_open_update(0x%08x): "
923 "Failed to lock global key '%s'\n",
924 op->global->open_global_id,
925 hex_encode_talloc(talloc_tos(), key.dptr,
926 key.dsize)));
927 return NT_STATUS_INTERNAL_DB_ERROR;
928 }
929
930 status = smbXsrv_open_global_store(op->global);
931 if (!NT_STATUS_IS_OK(status)) {
932 DEBUG(0,("smbXsrv_open_update: "
933 "global_id (0x%08x) store failed - %s\n",
934 op->global->open_global_id,
935 nt_errstr(status)));
936 return status;
937 }
938
939 if (CHECK_DEBUGLVL(10)) {
940 struct smbXsrv_openB open_blob;
941
942 ZERO_STRUCT(open_blob);
943 open_blob.version = SMBXSRV_VERSION_0;
944 open_blob.info.info0 = op;
945
946 DEBUG(10,("smbXsrv_open_update: global_id (0x%08x) stored\n",
947 op->global->open_global_id));
948 NDR_PRINT_DEBUG(smbXsrv_openB, &open_blob);
949 }
950
951 return NT_STATUS_OK;
952 }
953
954 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now)
955 {
956 struct smbXsrv_open_table *table;
957 struct db_record *local_rec = NULL;
958 struct db_record *global_rec = NULL;
959 NTSTATUS status;
960 NTSTATUS error = NT_STATUS_OK;
961
962 if (op->table == NULL) {
963 return NT_STATUS_OK;
964 }
965
966 table = op->table;
967 op->table = NULL;
968
969 op->status = NT_STATUS_FILE_CLOSED;
970 op->global->disconnect_time = now;
971 server_id_set_disconnected(&op->global->server_id);
972
973 global_rec = op->global->db_rec;
974 op->global->db_rec = NULL;
975 if (global_rec == NULL) {
976 uint8_t key_buf[SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE];
977 TDB_DATA key;
978
979 key = smbXsrv_open_global_id_to_key(
980 op->global->open_global_id,
981 key_buf);
982
983 global_rec = dbwrap_fetch_locked(table->global.db_ctx,
984 op->global, key);
985 if (global_rec == NULL) {
986 DEBUG(0, ("smbXsrv_open_close(0x%08x): "
987 "Failed to lock global key '%s'\n",
988 op->global->open_global_id,
989 hex_encode_talloc(global_rec, key.dptr,
990 key.dsize)));
991 error = NT_STATUS_INTERNAL_ERROR;
992 }
993 }
994
995 if (global_rec != NULL && op->global->durable) {
996 /*
997 * If it is a durable open we need to update the global part
998 * instead of deleting it
999 */
1000 op->global->db_rec = global_rec;
1001 status = smbXsrv_open_global_store(op->global);
1002 if (NT_STATUS_IS_OK(status)) {
1003 /*
1004 * smbXsrv_open_global_store does the free
1005 * of op->global->db_rec
1006 */
1007 global_rec = NULL;
1008 }
1009 if (!NT_STATUS_IS_OK(status)) {
1010 DEBUG(0,("smbXsrv_open_close(0x%08x)"
1011 "smbXsrv_open_global_store() failed - %s\n",
1012 op->global->open_global_id,
1013 nt_errstr(status)));
1014 error = status;
1015 }
1016
1017 if (NT_STATUS_IS_OK(status) && CHECK_DEBUGLVL(10)) {
1018 struct smbXsrv_openB open_blob;
1019
1020 ZERO_STRUCT(open_blob);
1021 open_blob.version = SMBXSRV_VERSION_0;
1022 open_blob.info.info0 = op;
1023
1024 DEBUG(10,("smbXsrv_open_close(0x%08x): "
1025 "stored disconnect\n",
1026 op->global->open_global_id));
1027 NDR_PRINT_DEBUG(smbXsrv_openB, &open_blob);
1028 }
1029 }
1030
1031 if (global_rec != NULL) {
1032 status = dbwrap_record_delete(global_rec);
1033 if (!NT_STATUS_IS_OK(status)) {
1034 TDB_DATA key = dbwrap_record_get_key(global_rec);
1035
1036 DEBUG(0, ("smbXsrv_open_close(0x%08x): "
1037 "failed to delete global key '%s': %s\n",
1038 op->global->open_global_id,
1039 hex_encode_talloc(global_rec, key.dptr,
1040 key.dsize),
1041 nt_errstr(status)));
1042 error = status;
1043 }
1044 }
1045 TALLOC_FREE(global_rec);
1046
1047 local_rec = op->db_rec;
1048 if (local_rec == NULL) {
1049 uint8_t key_buf[SMBXSRV_OPEN_LOCAL_TDB_KEY_SIZE];
1050 TDB_DATA key;
1051
1052 key = smbXsrv_open_local_id_to_key(op->local_id, key_buf);
1053
1054 local_rec = dbwrap_fetch_locked(table->local.db_ctx,
1055 op, key);
1056 if (local_rec == NULL) {
1057 DEBUG(0, ("smbXsrv_open_close(0x%08x): "
1058 "Failed to lock local key '%s'\n",
1059 op->global->open_global_id,
1060 hex_encode_talloc(local_rec, key.dptr,
1061 key.dsize)));
1062 error = NT_STATUS_INTERNAL_ERROR;
1063 }
1064 }
1065
1066 if (local_rec != NULL) {
1067 status = dbwrap_record_delete(local_rec);
1068 if (!NT_STATUS_IS_OK(status)) {
1069 TDB_DATA key = dbwrap_record_get_key(local_rec);
1070
1071 DEBUG(0, ("smbXsrv_open_close(0x%08x): "
1072 "failed to delete local key '%s': %s\n",
1073 op->global->open_global_id,
1074 hex_encode_talloc(local_rec, key.dptr,
1075 key.dsize),
1076 nt_errstr(status)));
1077 error = status;
1078 }
1079 table->local.num_opens -= 1;
1080 }
1081 if (op->db_rec == NULL) {
1082 TALLOC_FREE(local_rec);
1083 }
1084 op->db_rec = NULL;
1085
1086 if (op->compat) {
1087 op->compat->op = NULL;
1088 file_free(NULL, op->compat);
1089 op->compat = NULL;
1090 }
1091
1092 return error;
1093 }
1094
1095 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn)
1096 {
1097 uint32_t max_opens;
1098
1099 /*
1100 * Allow a range from 1..65534.
1101 *
1102 * With real_max_open_files possible ids,
1103 * truncated to the SMB1 limit of 16-bit.
1104 *
1105 * 0 and 0xFFFF are no valid ids.
1106 */
1107 max_opens = conn->client->sconn->real_max_open_files;
1108 max_opens = MIN(max_opens, UINT16_MAX - 1);
1109
1110 return smbXsrv_open_table_init(conn, 1, UINT16_MAX - 1, max_opens);
1111 }
1112
1113 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
1114 uint16_t fnum, NTTIME now,
1115 struct smbXsrv_open **_open)
1116 {
1117 struct smbXsrv_open_table *table = conn->client->open_table;
1118 uint32_t local_id = fnum;
1119 uint32_t global_id = 0;
1120
1121 return smbXsrv_open_local_lookup(table, local_id, global_id, now, _open);
1122 }
1123
1124 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn)
1125 {
1126 uint32_t max_opens;
1127
1128 /*
1129 * Allow a range from 1..4294967294.
1130 *
1131 * With real_max_open_files possible ids,
1132 * truncated to 16-bit (the same as SMB1 for now).
1133 *
1134 * 0 and 0xFFFFFFFF are no valid ids.
1135 *
1136 * The usage of conn->sconn->real_max_open_files
1137 * is the reason that we use one open table per
1138 * transport connection (as we still have a 1:1 mapping
1139 * between process and transport connection).
1140 */
1141 max_opens = conn->client->sconn->real_max_open_files;
1142 max_opens = MIN(max_opens, UINT16_MAX - 1);
1143
1144 return smbXsrv_open_table_init(conn, 1, UINT32_MAX - 1, max_opens);
1145 }
1146
1147 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
1148 uint64_t persistent_id,
1149 uint64_t volatile_id,
1150 NTTIME now,
1151 struct smbXsrv_open **_open)
1152 {
1153 struct smbXsrv_open_table *table = conn->client->open_table;
1154 uint32_t local_id = volatile_id & UINT32_MAX;
1155 uint64_t local_zeros = volatile_id & 0xFFFFFFFF00000000LLU;
1156 uint32_t global_id = persistent_id & UINT32_MAX;
1157 uint64_t global_zeros = persistent_id & 0xFFFFFFFF00000000LLU;
1158
1159 if (local_zeros != 0) {
1160 return NT_STATUS_FILE_CLOSED;
1161 }
1162
1163 if (global_zeros != 0) {
1164 return NT_STATUS_FILE_CLOSED;
1165 }
1166
1167 if (global_id == 0) {
1168 return NT_STATUS_FILE_CLOSED;
1169 }
1170
1171 return smbXsrv_open_local_lookup(table, local_id, global_id, now, _open);
1172 }
1173
1174 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
1175 struct auth_session_info *session_info,
1176 uint64_t persistent_id,
1177 const struct GUID *create_guid,
1178 NTTIME now,
1179 struct smbXsrv_open **_open)
1180 {
1181 struct smbXsrv_open_table *table = conn->client->open_table;
1182 struct db_record *local_rec = NULL;
1183 struct smbXsrv_open *op = NULL;
1184 void *ptr = NULL;
1185 TDB_DATA val;
1186 uint32_t global_id = persistent_id & UINT32_MAX;
1187 uint64_t global_zeros = persistent_id & 0xFFFFFFFF00000000LLU;
1188 NTSTATUS status;
1189 struct security_token *current_token = NULL;
1190
1191 if (session_info == NULL) {
1192 DEBUG(10, ("session_info=NULL\n"));
1193 return NT_STATUS_INVALID_HANDLE;
1194 }
1195 current_token = session_info->security_token;
1196
1197 if (current_token == NULL) {
1198 DEBUG(10, ("current_token=NULL\n"));
1199 return NT_STATUS_INVALID_HANDLE;
1200 }
1201
1202 if (global_zeros != 0) {
1203 DEBUG(10, ("global_zeros!=0\n"));
1204 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1205 }
1206
1207 op = talloc_zero(table, struct smbXsrv_open);
1208 if (op == NULL) {
1209 return NT_STATUS_NO_MEMORY;
1210 }
1211 op->table = table;
1212
1213 status = smbXsrv_open_global_lookup(table, global_id, op, &op->global);
1214 if (!NT_STATUS_IS_OK(status)) {
1215 TALLOC_FREE(op);
1216 DEBUG(10, ("smbXsrv_open_global_lookup returned %s\n",
1217 nt_errstr(status)));
1218 return status;
1219 }
1220
1221 /*
1222 * If the provided create_guid is NULL, this means that
1223 * the reconnect request was a v1 request. In that case
1224 * we should skipt the create GUID verification, since
1225 * it is valid to v1-reconnect a v2-opened handle.
1226 */
1227 if ((create_guid != NULL) &&
1228 !GUID_equal(&op->global->create_guid, create_guid))
1229 {
1230 TALLOC_FREE(op);
1231 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1232 }
1233
1234 if (!security_token_is_sid(current_token, &op->global->open_owner)) {
1235 TALLOC_FREE(op);
1236 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1237 }
1238
1239 if (!op->global->durable) {
1240 TALLOC_FREE(op);
1241 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
1242 }
1243
1244 if (table->local.num_opens >= table->local.max_opens) {
1245 TALLOC_FREE(op);
1246 return NT_STATUS_INSUFFICIENT_RESOURCES;
1247 }
1248
1249 status = smbXsrv_open_local_allocate_id(table->local.db_ctx,
1250 table->local.lowest_id,
1251 table->local.highest_id,
1252 op,
1253 &local_rec,
1254 &op->local_id);
1255 if (!NT_STATUS_IS_OK(status)) {
1256 TALLOC_FREE(op);
1257 return status;
1258 }
1259
1260 op->idle_time = now;
1261 op->status = NT_STATUS_FILE_CLOSED;
1262
1263 op->global->open_volatile_id = op->local_id;
1264 op->global->server_id = messaging_server_id(conn->msg_ctx);
1265
1266 ptr = op;
1267 val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
1268 status = dbwrap_record_store(local_rec, val, TDB_REPLACE);
1269 TALLOC_FREE(local_rec);
1270 if (!NT_STATUS_IS_OK(status)) {
1271 TALLOC_FREE(op);
1272 return status;
1273 }
1274 table->local.num_opens += 1;
1275
1276 talloc_set_destructor(op, smbXsrv_open_destructor);
1277
1278 status = smbXsrv_open_global_store(op->global);
1279 if (!NT_STATUS_IS_OK(status)) {
1280 TALLOC_FREE(op);
1281 return status;
1282 }
1283
1284 if (CHECK_DEBUGLVL(10)) {
1285 struct smbXsrv_openB open_blob;
1286
1287 ZERO_STRUCT(open_blob);
1288 open_blob.version = 0;
1289 open_blob.info.info0 = op;
1290
1291 DEBUG(10,("smbXsrv_open_recreate: global_id (0x%08x) stored\n",
1292 op->global->open_global_id));
1293 NDR_PRINT_DEBUG(smbXsrv_openB, &open_blob);
1294 }
1295
1296 *_open = op;
1297 return NT_STATUS_OK;
1298 }
1299
1300
1301 static NTSTATUS smbXsrv_open_global_parse_record(TALLOC_CTX *mem_ctx,
1302 struct db_record *rec,
1303 struct smbXsrv_open_global0 **global)
1304 {
1305 TDB_DATA key = dbwrap_record_get_key(rec);
1306 TDB_DATA val = dbwrap_record_get_value(rec);
1307 DATA_BLOB blob = data_blob_const(val.dptr, val.dsize);
1308 struct smbXsrv_open_globalB global_blob;
1309 enum ndr_err_code ndr_err;
1310 NTSTATUS status;
1311 TALLOC_CTX *frame = talloc_stackframe();
1312
1313 ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
1314 (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_open_globalB);
1315 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1316 DEBUG(1,("Invalid record in smbXsrv_open_global.tdb:"
1317 "key '%s' ndr_pull_struct_blob - %s\n",
1318 hex_encode_talloc(frame, key.dptr, key.dsize),
1319 ndr_errstr(ndr_err)));
1320 status = ndr_map_error2ntstatus(ndr_err);
1321 goto done;
1322 }
1323
1324 if (global_blob.version != SMBXSRV_VERSION_0) {
1325 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
1326 DEBUG(1,("Invalid record in smbXsrv_open_global.tdb:"
1327 "key '%s' unsuported version - %d - %s\n",
1328 hex_encode_talloc(frame, key.dptr, key.dsize),
1329 (int)global_blob.version,
1330 nt_errstr(status)));
1331 goto done;
1332 }
1333
1334 *global = talloc_move(mem_ctx, &global_blob.info.info0);
1335 status = NT_STATUS_OK;
1336 done:
1337 talloc_free(frame);
1338 return status;
1339 }
1340
1341 struct smbXsrv_open_global_traverse_state {
1342 int (*fn)(struct smbXsrv_open_global0 *, void *);
1343 void *private_data;
1344 };
1345
1346 static int smbXsrv_open_global_traverse_fn(struct db_record *rec, void *data)
1347 {
1348 struct smbXsrv_open_global_traverse_state *state =
1349 (struct smbXsrv_open_global_traverse_state*)data;
1350 struct smbXsrv_open_global0 *global = NULL;
1351 NTSTATUS status;
1352 int ret = -1;
1353
1354 status = smbXsrv_open_global_parse_record(talloc_tos(), rec, &global);
1355 if (!NT_STATUS_IS_OK(status)) {
1356 return -1;
1357 }
1358
1359 global->db_rec = rec;
1360 ret = state->fn(global, state->private_data);
1361 talloc_free(global);
1362 return ret;
1363 }
1364
1365 NTSTATUS smbXsrv_open_global_traverse(
1366 int (*fn)(struct smbXsrv_open_global0 *, void *),
1367 void *private_data)
1368 {
1369
1370 NTSTATUS status;
1371 int count = 0;
1372 struct smbXsrv_open_global_traverse_state state = {
1373 .fn = fn,
1374 .private_data = private_data,
1375 };
1376
1377 become_root();
1378 status = smbXsrv_open_global_init();
1379 if (!NT_STATUS_IS_OK(status)) {
1380 unbecome_root();
1381 DEBUG(0, ("Failed to initialize open_global: %s\n",
1382 nt_errstr(status)));
1383 return status;
1384 }
1385
1386 status = dbwrap_traverse_read(smbXsrv_open_global_db_ctx,
1387 smbXsrv_open_global_traverse_fn,
1388 &state,
1389 &count);
1390 unbecome_root();
1391
1392 return status;
1393 }
1394
1395 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id)
1396 {
1397 NTSTATUS status = NT_STATUS_OK;
1398 TALLOC_CTX *frame = talloc_stackframe();
1399 struct smbXsrv_open_global0 *op = NULL;
1400 uint8_t key_buf[SMBXSRV_OPEN_GLOBAL_TDB_KEY_SIZE];
1401 TDB_DATA key;
1402 TDB_DATA val;
1403 struct db_record *rec;
1404 bool delete_open = false;
1405 uint32_t global_id = persistent_id & UINT32_MAX;
1406
1407 key = smbXsrv_open_global_id_to_key(global_id, key_buf);
1408 rec = dbwrap_fetch_locked(smbXsrv_open_global_db_ctx, frame, key);
1409 if (rec == NULL) {
1410 status = NT_STATUS_NOT_FOUND;
1411 DEBUG(1, ("smbXsrv_open_cleanup[global: 0x%08x] "
1412 "failed to fetch record from %s - %s\n",
1413 global_id, dbwrap_name(smbXsrv_open_global_db_ctx),
1414 nt_errstr(status)));
1415 goto done;
1416 }
1417
1418 val = dbwrap_record_get_value(rec);
1419 if (val.dsize == 0) {
1420 DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
1421 "empty record in %s, skipping...\n",
1422 global_id, dbwrap_name(smbXsrv_open_global_db_ctx)));
1423 goto done;
1424 }
1425
1426 status = smbXsrv_open_global_parse_record(talloc_tos(), rec, &op);
1427 if (!NT_STATUS_IS_OK(status)) {
1428 DEBUG(1, ("smbXsrv_open_cleanup[global: 0x%08x] "
1429 "failed to read record: %s\n",
1430 global_id, nt_errstr(status)));
1431 goto done;
1432 }
1433
1434 if (server_id_is_disconnected(&op->server_id)) {
1435 struct timeval now, disconnect_time;
1436 int64_t tdiff;
1437 now = timeval_current();
1438 nttime_to_timeval(&disconnect_time, op->disconnect_time);
1439 tdiff = usec_time_diff(&now, &disconnect_time);
1440 delete_open = (tdiff >= 1000*op->durable_timeout_msec);
1441
1442 DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
1443 "disconnected at [%s] %us ago with "
1444 "timeout of %us -%s reached\n",
1445 global_id,
1446 nt_time_string(frame, op->disconnect_time),
1447 (unsigned)(tdiff/1000000),
1448 op->durable_timeout_msec / 1000,
1449 delete_open ? "" : " not"));
1450 } else if (!serverid_exists(&op->server_id)) {
1451 DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
1452 "server[%s] does not exist\n",
1453 global_id, server_id_str(frame, &op->server_id)));
1454 delete_open = true;
1455 }
1456
1457 if (!delete_open) {
1458 goto done;
1459 }
1460
1461 status = dbwrap_record_delete(rec);
1462 if (!NT_STATUS_IS_OK(status)) {
1463 DEBUG(1, ("smbXsrv_open_cleanup[global: 0x%08x] "
1464 "failed to delete record"
1465 "from %s: %s\n", global_id,
1466 dbwrap_name(smbXsrv_open_global_db_ctx),
1467 nt_errstr(status)));
1468 goto done;
1469 }
1470
1471 DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
1472 "delete record from %s\n",
1473 global_id,
1474 dbwrap_name(smbXsrv_open_global_db_ctx)));
1475
1476 done:
1477 talloc_free(frame);
1478 return status;
1479 }
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