Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 :
4 : Copyright (C) Stefan Metzmacher 2011-2012
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 "lib/util/server_id.h"
24 : #include "smbd/smbd.h"
25 : #include "smbd/globals.h"
26 : #include "dbwrap/dbwrap.h"
27 : #include "dbwrap/dbwrap_rbt.h"
28 : #include "dbwrap/dbwrap_open.h"
29 : #include "messages.h"
30 : #include "lib/util/util_tdb.h"
31 : #include "librpc/gen_ndr/ndr_smbXsrv.h"
32 : #include "serverid.h"
33 :
34 : struct smbXsrv_tcon_table {
35 : struct {
36 : struct db_context *db_ctx;
37 : uint32_t lowest_id;
38 : uint32_t highest_id;
39 : uint32_t max_tcons;
40 : uint32_t num_tcons;
41 : } local;
42 : struct {
43 : struct db_context *db_ctx;
44 : } global;
45 : };
46 :
47 : static struct db_context *smbXsrv_tcon_global_db_ctx = NULL;
48 :
49 5023 : NTSTATUS smbXsrv_tcon_global_init(void)
50 : {
51 5023 : char *global_path = NULL;
52 5023 : struct db_context *db_ctx = NULL;
53 :
54 5023 : if (smbXsrv_tcon_global_db_ctx != NULL) {
55 4972 : return NT_STATUS_OK;
56 : }
57 :
58 51 : global_path = lock_path(talloc_tos(), "smbXsrv_tcon_global.tdb");
59 51 : if (global_path == NULL) {
60 0 : return NT_STATUS_NO_MEMORY;
61 : }
62 :
63 51 : db_ctx = db_open(NULL, global_path,
64 : 0, /* hash_size */
65 : TDB_DEFAULT |
66 : TDB_CLEAR_IF_FIRST |
67 : TDB_INCOMPATIBLE_HASH,
68 : O_RDWR | O_CREAT, 0600,
69 : DBWRAP_LOCK_ORDER_1,
70 : DBWRAP_FLAG_NONE);
71 51 : TALLOC_FREE(global_path);
72 51 : if (db_ctx == NULL) {
73 : NTSTATUS status;
74 :
75 0 : status = map_nt_error_from_unix_common(errno);
76 :
77 0 : return status;
78 : }
79 :
80 51 : smbXsrv_tcon_global_db_ctx = db_ctx;
81 :
82 51 : return NT_STATUS_OK;
83 : }
84 :
85 : /*
86 : * NOTE:
87 : * We need to store the keys in big endian so that dbwrap_rbt's memcmp
88 : * has the same result as integer comparison between the uint32_t
89 : * values.
90 : *
91 : * TODO: implement string based key
92 : */
93 :
94 : #define SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE sizeof(uint32_t)
95 :
96 16737 : static TDB_DATA smbXsrv_tcon_global_id_to_key(uint32_t id,
97 : uint8_t *key_buf)
98 : {
99 : TDB_DATA key;
100 :
101 16737 : RSIVAL(key_buf, 0, id);
102 :
103 16737 : key = make_tdb_data(key_buf, SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE);
104 :
105 16737 : return key;
106 : }
107 :
108 : #if 0
109 : static NTSTATUS smbXsrv_tcon_global_key_to_id(TDB_DATA key, uint32_t *id)
110 : {
111 : if (id == NULL) {
112 : return NT_STATUS_INVALID_PARAMETER;
113 : }
114 :
115 : if (key.dsize != SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE) {
116 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
117 : }
118 :
119 : *id = RIVAL(key.dptr, 0);
120 :
121 : return NT_STATUS_OK;
122 : }
123 : #endif
124 :
125 : #define SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE sizeof(uint32_t)
126 :
127 141914 : static TDB_DATA smbXsrv_tcon_local_id_to_key(uint32_t id,
128 : uint8_t *key_buf)
129 : {
130 : TDB_DATA key;
131 :
132 141914 : RSIVAL(key_buf, 0, id);
133 :
134 141914 : key = make_tdb_data(key_buf, SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE);
135 :
136 141914 : return key;
137 : }
138 :
139 0 : static NTSTATUS smbXsrv_tcon_local_key_to_id(TDB_DATA key, uint32_t *id)
140 : {
141 0 : if (id == NULL) {
142 0 : return NT_STATUS_INVALID_PARAMETER;
143 : }
144 :
145 0 : if (key.dsize != SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE) {
146 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
147 : }
148 :
149 0 : *id = RIVAL(key.dptr, 0);
150 :
151 0 : return NT_STATUS_OK;
152 : }
153 :
154 16737 : static struct db_record *smbXsrv_tcon_global_fetch_locked(
155 : struct db_context *db,
156 : uint32_t id,
157 : TALLOC_CTX *mem_ctx)
158 : {
159 : TDB_DATA key;
160 : uint8_t key_buf[SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE];
161 16737 : struct db_record *rec = NULL;
162 :
163 16737 : key = smbXsrv_tcon_global_id_to_key(id, key_buf);
164 :
165 16737 : rec = dbwrap_fetch_locked(db, mem_ctx, key);
166 :
167 16737 : if (rec == NULL) {
168 0 : DBG_DEBUG("Failed to lock global id 0x%08x, key '%s'\n", id,
169 : hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
170 : }
171 :
172 16737 : return rec;
173 : }
174 :
175 8076 : static struct db_record *smbXsrv_tcon_local_fetch_locked(
176 : struct db_context *db,
177 : uint32_t id,
178 : TALLOC_CTX *mem_ctx)
179 : {
180 : TDB_DATA key;
181 : uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
182 8076 : struct db_record *rec = NULL;
183 :
184 8076 : key = smbXsrv_tcon_local_id_to_key(id, key_buf);
185 :
186 8076 : rec = dbwrap_fetch_locked(db, mem_ctx, key);
187 :
188 8076 : if (rec == NULL) {
189 0 : DBG_DEBUG("Failed to lock local id 0x%08x, key '%s'\n", id,
190 : hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
191 : }
192 :
193 8076 : return rec;
194 : }
195 :
196 4958 : static NTSTATUS smbXsrv_tcon_table_init(TALLOC_CTX *mem_ctx,
197 : struct smbXsrv_tcon_table *table,
198 : uint32_t lowest_id,
199 : uint32_t highest_id,
200 : uint32_t max_tcons)
201 : {
202 : NTSTATUS status;
203 : uint64_t max_range;
204 :
205 4958 : if (lowest_id > highest_id) {
206 0 : return NT_STATUS_INTERNAL_ERROR;
207 : }
208 :
209 4958 : max_range = highest_id;
210 4958 : max_range -= lowest_id;
211 4958 : max_range += 1;
212 :
213 4958 : if (max_tcons > max_range) {
214 0 : return NT_STATUS_INTERNAL_ERROR;
215 : }
216 :
217 4958 : ZERO_STRUCTP(table);
218 4958 : table->local.db_ctx = db_open_rbt(table);
219 4958 : if (table->local.db_ctx == NULL) {
220 0 : return NT_STATUS_NO_MEMORY;
221 : }
222 4958 : table->local.lowest_id = lowest_id;
223 4958 : table->local.highest_id = highest_id;
224 4958 : table->local.max_tcons = max_tcons;
225 :
226 4958 : status = smbXsrv_tcon_global_init();
227 4958 : if (!NT_STATUS_IS_OK(status)) {
228 0 : return status;
229 : }
230 :
231 4958 : table->global.db_ctx = smbXsrv_tcon_global_db_ctx;
232 :
233 4958 : return NT_STATUS_OK;
234 : }
235 :
236 : struct smb1srv_tcon_local_allocate_state {
237 : const uint32_t lowest_id;
238 : const uint32_t highest_id;
239 : uint32_t last_id;
240 : uint32_t useable_id;
241 : NTSTATUS status;
242 : };
243 :
244 0 : static int smb1srv_tcon_local_allocate_traverse(struct db_record *rec,
245 : void *private_data)
246 : {
247 0 : struct smb1srv_tcon_local_allocate_state *state =
248 : (struct smb1srv_tcon_local_allocate_state *)private_data;
249 0 : TDB_DATA key = dbwrap_record_get_key(rec);
250 0 : uint32_t id = 0;
251 : NTSTATUS status;
252 :
253 0 : status = smbXsrv_tcon_local_key_to_id(key, &id);
254 0 : if (!NT_STATUS_IS_OK(status)) {
255 0 : state->status = status;
256 0 : return -1;
257 : }
258 :
259 0 : if (id <= state->last_id) {
260 0 : state->status = NT_STATUS_INTERNAL_DB_CORRUPTION;
261 0 : return -1;
262 : }
263 0 : state->last_id = id;
264 :
265 0 : if (id > state->useable_id) {
266 0 : state->status = NT_STATUS_OK;
267 0 : return -1;
268 : }
269 :
270 0 : if (state->useable_id == state->highest_id) {
271 0 : state->status = NT_STATUS_INSUFFICIENT_RESOURCES;
272 0 : return -1;
273 : }
274 :
275 0 : state->useable_id +=1;
276 0 : return 0;
277 : }
278 :
279 28 : static NTSTATUS smb1srv_tcon_local_allocate_id(struct db_context *db,
280 : uint32_t lowest_id,
281 : uint32_t highest_id,
282 : TALLOC_CTX *mem_ctx,
283 : struct db_record **_rec,
284 : uint32_t *_id)
285 : {
286 28 : struct smb1srv_tcon_local_allocate_state state = {
287 : .lowest_id = lowest_id,
288 : .highest_id = highest_id,
289 : .last_id = 0,
290 : .useable_id = lowest_id,
291 : .status = NT_STATUS_INTERNAL_ERROR,
292 : };
293 : uint32_t i;
294 : uint32_t range;
295 : NTSTATUS status;
296 28 : int count = 0;
297 :
298 28 : *_rec = NULL;
299 28 : *_id = 0;
300 :
301 28 : if (lowest_id > highest_id) {
302 0 : return NT_STATUS_INSUFFICIENT_RESOURCES;
303 : }
304 :
305 : /*
306 : * first we try randomly
307 : */
308 28 : range = (highest_id - lowest_id) + 1;
309 :
310 51 : for (i = 0; i < (range / 2); i++) {
311 : uint32_t id;
312 : TDB_DATA val;
313 28 : struct db_record *rec = NULL;
314 :
315 28 : id = generate_random() % range;
316 28 : id += lowest_id;
317 :
318 28 : if (id < lowest_id) {
319 0 : id = lowest_id;
320 : }
321 28 : if (id > highest_id) {
322 0 : id = highest_id;
323 : }
324 :
325 28 : rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
326 28 : if (rec == NULL) {
327 23 : return NT_STATUS_INSUFFICIENT_RESOURCES;
328 : }
329 :
330 28 : val = dbwrap_record_get_value(rec);
331 28 : if (val.dsize != 0) {
332 0 : TALLOC_FREE(rec);
333 0 : continue;
334 : }
335 :
336 28 : *_rec = rec;
337 28 : *_id = id;
338 28 : return NT_STATUS_OK;
339 : }
340 :
341 : /*
342 : * if the range is almost full,
343 : * we traverse the whole table
344 : * (this relies on sorted behavior of dbwrap_rbt)
345 : */
346 0 : status = dbwrap_traverse_read(db, smb1srv_tcon_local_allocate_traverse,
347 : &state, &count);
348 0 : if (NT_STATUS_IS_OK(status)) {
349 0 : if (NT_STATUS_IS_OK(state.status)) {
350 0 : return NT_STATUS_INTERNAL_ERROR;
351 : }
352 :
353 0 : if (!NT_STATUS_EQUAL(state.status, NT_STATUS_INTERNAL_ERROR)) {
354 0 : return state.status;
355 : }
356 :
357 0 : if (state.useable_id <= state.highest_id) {
358 0 : state.status = NT_STATUS_OK;
359 : } else {
360 0 : return NT_STATUS_INSUFFICIENT_RESOURCES;
361 : }
362 0 : } else if (!NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_DB_CORRUPTION)) {
363 : /*
364 : * Here we really expect NT_STATUS_INTERNAL_DB_CORRUPTION!
365 : *
366 : * If we get anything else it is an error, because it
367 : * means we did not manage to find a free slot in
368 : * the db.
369 : */
370 0 : return NT_STATUS_INSUFFICIENT_RESOURCES;
371 : }
372 :
373 0 : if (NT_STATUS_IS_OK(state.status)) {
374 : uint32_t id;
375 : TDB_DATA val;
376 0 : struct db_record *rec = NULL;
377 :
378 0 : id = state.useable_id;
379 :
380 0 : rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
381 0 : if (rec == NULL) {
382 0 : return NT_STATUS_INSUFFICIENT_RESOURCES;
383 : }
384 :
385 0 : val = dbwrap_record_get_value(rec);
386 0 : if (val.dsize != 0) {
387 0 : TALLOC_FREE(rec);
388 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
389 : }
390 :
391 0 : *_rec = rec;
392 0 : *_id = id;
393 0 : return NT_STATUS_OK;
394 : }
395 :
396 0 : return state.status;
397 : }
398 :
399 : struct smbXsrv_tcon_local_fetch_state {
400 : struct smbXsrv_tcon *tcon;
401 : NTSTATUS status;
402 : };
403 :
404 133828 : static void smbXsrv_tcon_local_fetch_parser(TDB_DATA key, TDB_DATA data,
405 : void *private_data)
406 : {
407 133828 : struct smbXsrv_tcon_local_fetch_state *state =
408 : (struct smbXsrv_tcon_local_fetch_state *)private_data;
409 : void *ptr;
410 :
411 133828 : if (data.dsize != sizeof(ptr)) {
412 0 : state->status = NT_STATUS_INTERNAL_DB_ERROR;
413 0 : return;
414 : }
415 :
416 133828 : memcpy(&ptr, data.dptr, data.dsize);
417 133828 : state->tcon = talloc_get_type_abort(ptr, struct smbXsrv_tcon);
418 133828 : state->status = NT_STATUS_OK;
419 : }
420 :
421 137479 : static NTSTATUS smbXsrv_tcon_local_lookup(struct smbXsrv_tcon_table *table,
422 : uint32_t tcon_local_id,
423 : NTTIME now,
424 : struct smbXsrv_tcon **_tcon)
425 : {
426 137479 : struct smbXsrv_tcon_local_fetch_state state = {
427 : .tcon = NULL,
428 : .status = NT_STATUS_INTERNAL_ERROR,
429 : };
430 : uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
431 : TDB_DATA key;
432 : NTSTATUS status;
433 :
434 137479 : *_tcon = NULL;
435 :
436 137479 : if (tcon_local_id == 0) {
437 3641 : return NT_STATUS_NETWORK_NAME_DELETED;
438 : }
439 :
440 133838 : if (table == NULL) {
441 : /* this might happen before the end of negprot */
442 0 : return NT_STATUS_NETWORK_NAME_DELETED;
443 : }
444 :
445 133838 : if (table->local.db_ctx == NULL) {
446 0 : return NT_STATUS_INTERNAL_ERROR;
447 : }
448 :
449 133838 : key = smbXsrv_tcon_local_id_to_key(tcon_local_id, key_buf);
450 :
451 133838 : status = dbwrap_parse_record(table->local.db_ctx, key,
452 : smbXsrv_tcon_local_fetch_parser,
453 : &state);
454 133838 : if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
455 10 : return NT_STATUS_NETWORK_NAME_DELETED;
456 133828 : } else if (!NT_STATUS_IS_OK(status)) {
457 0 : return status;
458 : }
459 133828 : if (!NT_STATUS_IS_OK(state.status)) {
460 0 : return state.status;
461 : }
462 :
463 133828 : if (NT_STATUS_EQUAL(state.tcon->status, NT_STATUS_NETWORK_NAME_DELETED)) {
464 0 : return NT_STATUS_NETWORK_NAME_DELETED;
465 : }
466 :
467 133828 : state.tcon->idle_time = now;
468 :
469 133828 : *_tcon = state.tcon;
470 133828 : return state.tcon->status;
471 : }
472 :
473 5635 : static int smbXsrv_tcon_global_destructor(struct smbXsrv_tcon_global0 *global)
474 : {
475 5635 : return 0;
476 : }
477 :
478 : static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
479 : bool *is_free,
480 : bool *was_free,
481 : TALLOC_CTX *mem_ctx,
482 : struct smbXsrv_tcon_global0 **_g);
483 :
484 5635 : static NTSTATUS smbXsrv_tcon_global_allocate(struct db_context *db,
485 : TALLOC_CTX *mem_ctx,
486 : struct smbXsrv_tcon_global0 **_global)
487 : {
488 : uint32_t i;
489 5635 : struct smbXsrv_tcon_global0 *global = NULL;
490 5635 : uint32_t last_free = 0;
491 5635 : const uint32_t min_tries = 3;
492 :
493 5635 : *_global = NULL;
494 :
495 5635 : global = talloc_zero(mem_ctx, struct smbXsrv_tcon_global0);
496 5635 : if (global == NULL) {
497 0 : return NT_STATUS_NO_MEMORY;
498 : }
499 5635 : talloc_set_destructor(global, smbXsrv_tcon_global_destructor);
500 :
501 : /*
502 : * Here we just randomly try the whole 32-bit space
503 : *
504 : * We use just 32-bit, because we want to reuse the
505 : * ID for SRVSVC.
506 : */
507 5635 : for (i = 0; i < UINT32_MAX; i++) {
508 5635 : bool is_free = false;
509 5635 : bool was_free = false;
510 : uint32_t id;
511 :
512 5635 : if (i >= min_tries && last_free != 0) {
513 0 : id = last_free;
514 : } else {
515 5635 : id = generate_random();
516 : }
517 5635 : if (id == 0) {
518 0 : id++;
519 : }
520 5635 : if (id == UINT32_MAX) {
521 0 : id--;
522 : }
523 :
524 5635 : global->db_rec = smbXsrv_tcon_global_fetch_locked(db, id,
525 : mem_ctx);
526 5635 : if (global->db_rec == NULL) {
527 0 : talloc_free(global);
528 3822 : return NT_STATUS_INSUFFICIENT_RESOURCES;
529 : }
530 :
531 5635 : smbXsrv_tcon_global_verify_record(global->db_rec,
532 : &is_free,
533 : &was_free,
534 : NULL, NULL);
535 :
536 5635 : if (!is_free) {
537 0 : TALLOC_FREE(global->db_rec);
538 0 : continue;
539 : }
540 :
541 5635 : if (!was_free && i < min_tries) {
542 : /*
543 : * The session_id is free now,
544 : * but was not free before.
545 : *
546 : * This happens if a smbd crashed
547 : * and did not cleanup the record.
548 : *
549 : * If this is one of our first tries,
550 : * then we try to find a real free one.
551 : */
552 0 : if (last_free == 0) {
553 0 : last_free = id;
554 : }
555 0 : TALLOC_FREE(global->db_rec);
556 0 : continue;
557 : }
558 :
559 5635 : global->tcon_global_id = id;
560 :
561 5635 : *_global = global;
562 5635 : return NT_STATUS_OK;
563 : }
564 :
565 : /* should not be reached */
566 0 : talloc_free(global);
567 0 : return NT_STATUS_INTERNAL_ERROR;
568 : }
569 :
570 5635 : static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
571 : bool *is_free,
572 : bool *was_free,
573 : TALLOC_CTX *mem_ctx,
574 : struct smbXsrv_tcon_global0 **_g)
575 : {
576 : TDB_DATA key;
577 : TDB_DATA val;
578 : DATA_BLOB blob;
579 : struct smbXsrv_tcon_globalB global_blob;
580 : enum ndr_err_code ndr_err;
581 5635 : struct smbXsrv_tcon_global0 *global = NULL;
582 : bool exists;
583 5635 : TALLOC_CTX *frame = talloc_stackframe();
584 :
585 5635 : *is_free = false;
586 :
587 5635 : if (was_free) {
588 5635 : *was_free = false;
589 : }
590 5635 : if (_g) {
591 0 : *_g = NULL;
592 : }
593 :
594 5635 : key = dbwrap_record_get_key(db_rec);
595 :
596 5635 : val = dbwrap_record_get_value(db_rec);
597 5635 : if (val.dsize == 0) {
598 5635 : TALLOC_FREE(frame);
599 5635 : *is_free = true;
600 5635 : if (was_free) {
601 5635 : *was_free = true;
602 : }
603 9457 : return;
604 : }
605 :
606 0 : blob = data_blob_const(val.dptr, val.dsize);
607 :
608 0 : ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
609 : (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_tcon_globalB);
610 0 : if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
611 0 : NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
612 0 : DEBUG(1,("smbXsrv_tcon_global_verify_record: "
613 : "key '%s' ndr_pull_struct_blob - %s\n",
614 : hex_encode_talloc(frame, key.dptr, key.dsize),
615 : nt_errstr(status)));
616 0 : TALLOC_FREE(frame);
617 0 : return;
618 : }
619 :
620 0 : DEBUG(10,("smbXsrv_tcon_global_verify_record\n"));
621 0 : if (DEBUGLVL(10)) {
622 0 : NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
623 : }
624 :
625 0 : if (global_blob.version != SMBXSRV_VERSION_0) {
626 0 : DEBUG(0,("smbXsrv_tcon_global_verify_record: "
627 : "key '%s' use unsupported version %u\n",
628 : hex_encode_talloc(frame, key.dptr, key.dsize),
629 : global_blob.version));
630 0 : NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
631 0 : TALLOC_FREE(frame);
632 0 : return;
633 : }
634 :
635 0 : global = global_blob.info.info0;
636 :
637 0 : exists = serverid_exists(&global->server_id);
638 0 : if (!exists) {
639 : struct server_id_buf idbuf;
640 0 : DEBUG(2,("smbXsrv_tcon_global_verify_record: "
641 : "key '%s' server_id %s does not exist.\n",
642 : hex_encode_talloc(frame, key.dptr, key.dsize),
643 : server_id_str_buf(global->server_id, &idbuf)));
644 0 : if (DEBUGLVL(2)) {
645 0 : NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
646 : }
647 0 : TALLOC_FREE(frame);
648 0 : dbwrap_record_delete(db_rec);
649 0 : *is_free = true;
650 0 : return;
651 : }
652 :
653 0 : if (_g) {
654 0 : *_g = talloc_move(mem_ctx, &global);
655 : }
656 0 : TALLOC_FREE(frame);
657 : }
658 :
659 11110 : static NTSTATUS smbXsrv_tcon_global_store(struct smbXsrv_tcon_global0 *global)
660 : {
661 : struct smbXsrv_tcon_globalB global_blob;
662 11110 : DATA_BLOB blob = data_blob_null;
663 : TDB_DATA key;
664 : TDB_DATA val;
665 : NTSTATUS status;
666 : enum ndr_err_code ndr_err;
667 :
668 : /*
669 : * TODO: if we use other versions than '0'
670 : * we would add glue code here, that would be able to
671 : * store the information in the old format.
672 : */
673 :
674 11110 : if (global->db_rec == NULL) {
675 0 : return NT_STATUS_INTERNAL_ERROR;
676 : }
677 :
678 11110 : key = dbwrap_record_get_key(global->db_rec);
679 11110 : val = dbwrap_record_get_value(global->db_rec);
680 :
681 11110 : ZERO_STRUCT(global_blob);
682 11110 : global_blob.version = smbXsrv_version_global_current();
683 11110 : if (val.dsize >= 8) {
684 5475 : global_blob.seqnum = IVAL(val.dptr, 4);
685 : }
686 11110 : global_blob.seqnum += 1;
687 11110 : global_blob.info.info0 = global;
688 :
689 11110 : ndr_err = ndr_push_struct_blob(&blob, global->db_rec, &global_blob,
690 : (ndr_push_flags_fn_t)ndr_push_smbXsrv_tcon_globalB);
691 11110 : if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
692 0 : status = ndr_map_error2ntstatus(ndr_err);
693 0 : DEBUG(1,("smbXsrv_tcon_global_store: key '%s' ndr_push - %s\n",
694 : hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
695 : nt_errstr(status)));
696 0 : TALLOC_FREE(global->db_rec);
697 0 : return status;
698 : }
699 :
700 11110 : val = make_tdb_data(blob.data, blob.length);
701 11110 : status = dbwrap_record_store(global->db_rec, val, TDB_REPLACE);
702 11110 : if (!NT_STATUS_IS_OK(status)) {
703 0 : DEBUG(1,("smbXsrv_tcon_global_store: key '%s' store - %s\n",
704 : hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
705 : nt_errstr(status)));
706 0 : TALLOC_FREE(global->db_rec);
707 0 : return status;
708 : }
709 :
710 11110 : if (DEBUGLVL(10)) {
711 0 : DEBUG(10,("smbXsrv_tcon_global_store: key '%s' stored\n",
712 : hex_encode_talloc(global->db_rec, key.dptr, key.dsize)));
713 0 : NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
714 : }
715 :
716 11110 : TALLOC_FREE(global->db_rec);
717 :
718 11110 : return NT_STATUS_OK;
719 : }
720 :
721 5635 : static int smbXsrv_tcon_destructor(struct smbXsrv_tcon *tcon)
722 : {
723 : NTSTATUS status;
724 :
725 5635 : status = smbXsrv_tcon_disconnect(tcon, 0);
726 5635 : if (!NT_STATUS_IS_OK(status)) {
727 0 : DEBUG(0, ("smbXsrv_tcon_destructor: "
728 : "smbXsrv_tcon_disconnect() failed - %s\n",
729 : nt_errstr(status)));
730 : }
731 :
732 5635 : TALLOC_FREE(tcon->global);
733 :
734 5635 : return 0;
735 : }
736 :
737 5635 : static NTSTATUS smbXsrv_tcon_create(struct smbXsrv_tcon_table *table,
738 : enum protocol_types protocol,
739 : struct server_id server_id,
740 : NTTIME now,
741 : uint32_t session_global_id,
742 : uint8_t encryption_flags,
743 : const char *share_name,
744 : struct smbXsrv_tcon **_tcon)
745 : {
746 5635 : struct db_record *local_rec = NULL;
747 5635 : struct smbXsrv_tcon *tcon = NULL;
748 5635 : void *ptr = NULL;
749 : TDB_DATA val;
750 5635 : struct smbXsrv_tcon_global0 *global = NULL;
751 : NTSTATUS status;
752 :
753 5635 : if (table->local.num_tcons >= table->local.max_tcons) {
754 0 : return NT_STATUS_INSUFFICIENT_RESOURCES;
755 : }
756 :
757 5635 : tcon = talloc_zero(table, struct smbXsrv_tcon);
758 5635 : if (tcon == NULL) {
759 0 : return NT_STATUS_NO_MEMORY;
760 : }
761 5635 : tcon->table = table;
762 5635 : tcon->status = NT_STATUS_INTERNAL_ERROR;
763 5635 : tcon->idle_time = now;
764 :
765 5635 : status = smbXsrv_tcon_global_allocate(table->global.db_ctx,
766 : tcon, &global);
767 5635 : if (!NT_STATUS_IS_OK(status)) {
768 0 : TALLOC_FREE(tcon);
769 0 : return status;
770 : }
771 5635 : tcon->global = global;
772 :
773 5635 : global->session_global_id = session_global_id;
774 5635 : global->encryption_flags = encryption_flags;
775 5635 : global->share_name = talloc_strdup(global, share_name);
776 5635 : if (global->share_name == NULL) {
777 0 : TALLOC_FREE(tcon);
778 0 : return NT_STATUS_NO_MEMORY;
779 : }
780 :
781 5635 : if (protocol >= PROTOCOL_SMB2_02) {
782 5607 : uint64_t id = global->tcon_global_id;
783 :
784 5607 : global->tcon_wire_id = id;
785 :
786 5607 : tcon->local_id = global->tcon_global_id;
787 :
788 5607 : local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
789 : tcon->local_id,
790 : tcon /* TALLOC_CTX */);
791 5607 : if (local_rec == NULL) {
792 0 : TALLOC_FREE(tcon);
793 0 : return NT_STATUS_NO_MEMORY;
794 : }
795 :
796 5607 : val = dbwrap_record_get_value(local_rec);
797 5607 : if (val.dsize != 0) {
798 0 : TALLOC_FREE(tcon);
799 0 : return NT_STATUS_INTERNAL_DB_CORRUPTION;
800 : }
801 : } else {
802 :
803 28 : status = smb1srv_tcon_local_allocate_id(table->local.db_ctx,
804 : table->local.lowest_id,
805 : table->local.highest_id,
806 : tcon,
807 : &local_rec,
808 : &tcon->local_id);
809 28 : if (!NT_STATUS_IS_OK(status)) {
810 0 : TALLOC_FREE(tcon);
811 0 : return status;
812 : }
813 :
814 28 : global->tcon_wire_id = tcon->local_id;
815 : }
816 :
817 5635 : global->creation_time = now;
818 :
819 5635 : global->server_id = server_id;
820 :
821 5635 : ptr = tcon;
822 5635 : val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
823 5635 : status = dbwrap_record_store(local_rec, val, TDB_REPLACE);
824 5635 : TALLOC_FREE(local_rec);
825 5635 : if (!NT_STATUS_IS_OK(status)) {
826 0 : TALLOC_FREE(tcon);
827 0 : return status;
828 : }
829 5635 : table->local.num_tcons += 1;
830 :
831 5635 : talloc_set_destructor(tcon, smbXsrv_tcon_destructor);
832 :
833 5635 : status = smbXsrv_tcon_global_store(global);
834 5635 : if (!NT_STATUS_IS_OK(status)) {
835 0 : DEBUG(0,("smbXsrv_tcon_create: "
836 : "global_id (0x%08x) store failed - %s\n",
837 : tcon->global->tcon_global_id,
838 : nt_errstr(status)));
839 0 : TALLOC_FREE(tcon);
840 0 : return status;
841 : }
842 :
843 5635 : if (DEBUGLVL(10)) {
844 0 : struct smbXsrv_tconB tcon_blob = {
845 : .version = SMBXSRV_VERSION_0,
846 : .info.info0 = tcon,
847 : };
848 :
849 0 : DEBUG(10,("smbXsrv_tcon_create: global_id (0x%08x) stored\n",
850 : tcon->global->tcon_global_id));
851 0 : NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
852 : }
853 :
854 5635 : *_tcon = tcon;
855 5635 : return NT_STATUS_OK;
856 : }
857 :
858 5475 : NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon)
859 : {
860 5475 : struct smbXsrv_tcon_table *table = tcon->table;
861 : NTSTATUS status;
862 :
863 5475 : if (tcon->global->db_rec != NULL) {
864 0 : DEBUG(0, ("smbXsrv_tcon_update(0x%08x): "
865 : "Called with db_rec != NULL'\n",
866 : tcon->global->tcon_global_id));
867 0 : return NT_STATUS_INTERNAL_ERROR;
868 : }
869 :
870 7209 : tcon->global->db_rec = smbXsrv_tcon_global_fetch_locked(
871 : table->global.db_ctx,
872 5475 : tcon->global->tcon_global_id,
873 5475 : tcon->global /* TALLOC_CTX */);
874 5475 : if (tcon->global->db_rec == NULL) {
875 0 : return NT_STATUS_INTERNAL_DB_ERROR;
876 : }
877 :
878 5475 : status = smbXsrv_tcon_global_store(tcon->global);
879 5475 : if (!NT_STATUS_IS_OK(status)) {
880 0 : DEBUG(0,("smbXsrv_tcon_update: "
881 : "global_id (0x%08x) store failed - %s\n",
882 : tcon->global->tcon_global_id,
883 : nt_errstr(status)));
884 0 : return status;
885 : }
886 :
887 5475 : if (DEBUGLVL(10)) {
888 0 : struct smbXsrv_tconB tcon_blob = {
889 : .version = SMBXSRV_VERSION_0,
890 : .info.info0 = tcon,
891 : };
892 :
893 0 : DEBUG(10,("smbXsrv_tcon_update: global_id (0x%08x) stored\n",
894 : tcon->global->tcon_global_id));
895 0 : NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
896 : }
897 :
898 5475 : return NT_STATUS_OK;
899 : }
900 :
901 11258 : NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid)
902 : {
903 : struct smbXsrv_tcon_table *table;
904 11258 : struct db_record *local_rec = NULL;
905 11258 : struct db_record *global_rec = NULL;
906 : NTSTATUS status;
907 11258 : NTSTATUS error = NT_STATUS_OK;
908 :
909 11258 : if (tcon->table == NULL) {
910 5623 : return NT_STATUS_OK;
911 : }
912 :
913 5635 : table = tcon->table;
914 5635 : tcon->table = NULL;
915 :
916 5635 : if (tcon->compat) {
917 : bool ok;
918 :
919 5623 : ok = chdir_current_service(tcon->compat);
920 5623 : if (!ok) {
921 8 : status = NT_STATUS_INTERNAL_ERROR;
922 8 : DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
923 : "chdir_current_service() failed: %s\n",
924 : tcon->global->tcon_global_id,
925 : tcon->global->share_name,
926 : nt_errstr(status)));
927 : /*
928 : * We must call close_cnum() on
929 : * error, as the caller is going
930 : * to free tcon and tcon->compat
931 : * so we must ensure tcon->compat is
932 : * removed from the linked list
933 : * conn->sconn->connections.
934 : */
935 8 : close_cnum(tcon->compat, vuid, ERROR_CLOSE);
936 8 : tcon->compat = NULL;
937 8 : return status;
938 : }
939 :
940 5615 : close_cnum(tcon->compat, vuid, SHUTDOWN_CLOSE);
941 5615 : tcon->compat = NULL;
942 : }
943 :
944 5627 : tcon->status = NT_STATUS_NETWORK_NAME_DELETED;
945 :
946 5627 : global_rec = tcon->global->db_rec;
947 5627 : tcon->global->db_rec = NULL;
948 5627 : if (global_rec == NULL) {
949 5627 : global_rec = smbXsrv_tcon_global_fetch_locked(
950 : table->global.db_ctx,
951 5627 : tcon->global->tcon_global_id,
952 5627 : tcon->global /* TALLOC_CTX */);
953 5627 : if (global_rec == NULL) {
954 0 : error = NT_STATUS_INTERNAL_ERROR;
955 : }
956 : }
957 :
958 5627 : if (global_rec != NULL) {
959 5627 : status = dbwrap_record_delete(global_rec);
960 5627 : if (!NT_STATUS_IS_OK(status)) {
961 0 : TDB_DATA key = dbwrap_record_get_key(global_rec);
962 :
963 0 : DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
964 : "failed to delete global key '%s': %s\n",
965 : tcon->global->tcon_global_id,
966 : tcon->global->share_name,
967 : hex_encode_talloc(global_rec, key.dptr,
968 : key.dsize),
969 : nt_errstr(status)));
970 0 : error = status;
971 : }
972 : }
973 5627 : TALLOC_FREE(global_rec);
974 :
975 5627 : local_rec = tcon->db_rec;
976 5627 : if (local_rec == NULL) {
977 2441 : local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
978 : tcon->local_id,
979 : tcon /* TALLOC_CTX */);
980 2441 : if (local_rec == NULL) {
981 0 : error = NT_STATUS_INTERNAL_ERROR;
982 : }
983 : }
984 :
985 5627 : if (local_rec != NULL) {
986 5627 : status = dbwrap_record_delete(local_rec);
987 5627 : if (!NT_STATUS_IS_OK(status)) {
988 0 : TDB_DATA key = dbwrap_record_get_key(local_rec);
989 :
990 0 : DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
991 : "failed to delete local key '%s': %s\n",
992 : tcon->global->tcon_global_id,
993 : tcon->global->share_name,
994 : hex_encode_talloc(local_rec, key.dptr,
995 : key.dsize),
996 : nt_errstr(status)));
997 0 : error = status;
998 : }
999 5627 : table->local.num_tcons -= 1;
1000 : }
1001 5627 : if (tcon->db_rec == NULL) {
1002 2441 : TALLOC_FREE(local_rec);
1003 : }
1004 5627 : tcon->db_rec = NULL;
1005 :
1006 5627 : return error;
1007 : }
1008 :
1009 : struct smbXsrv_tcon_disconnect_all_state {
1010 : uint64_t vuid;
1011 : NTSTATUS first_status;
1012 : int errors;
1013 : };
1014 :
1015 : static int smbXsrv_tcon_disconnect_all_callback(struct db_record *local_rec,
1016 : void *private_data);
1017 :
1018 10190 : static NTSTATUS smbXsrv_tcon_disconnect_all(struct smbXsrv_tcon_table *table,
1019 : uint64_t vuid)
1020 : {
1021 : struct smbXsrv_tcon_disconnect_all_state state;
1022 : NTSTATUS status;
1023 10190 : int count = 0;
1024 :
1025 10190 : if (table == NULL) {
1026 5232 : return NT_STATUS_OK;
1027 : }
1028 :
1029 4958 : ZERO_STRUCT(state);
1030 4958 : state.vuid = vuid;
1031 :
1032 4958 : status = dbwrap_traverse(table->local.db_ctx,
1033 : smbXsrv_tcon_disconnect_all_callback,
1034 : &state, &count);
1035 4958 : if (!NT_STATUS_IS_OK(status)) {
1036 0 : DEBUG(0, ("smbXsrv_tcon_disconnect_all: "
1037 : "dbwrap_traverse() failed: %s\n",
1038 : nt_errstr(status)));
1039 0 : return status;
1040 : }
1041 :
1042 4958 : if (!NT_STATUS_IS_OK(state.first_status)) {
1043 8 : DEBUG(0, ("smbXsrv_tcon_disconnect_all: "
1044 : "count[%d] errors[%d] first[%s]\n",
1045 : count, state.errors,
1046 : nt_errstr(state.first_status)));
1047 8 : return state.first_status;
1048 : }
1049 :
1050 4950 : return NT_STATUS_OK;
1051 : }
1052 :
1053 3194 : static int smbXsrv_tcon_disconnect_all_callback(struct db_record *local_rec,
1054 : void *private_data)
1055 : {
1056 3194 : struct smbXsrv_tcon_disconnect_all_state *state =
1057 : (struct smbXsrv_tcon_disconnect_all_state *)private_data;
1058 : TDB_DATA val;
1059 3194 : void *ptr = NULL;
1060 3194 : struct smbXsrv_tcon *tcon = NULL;
1061 : uint64_t vuid;
1062 : NTSTATUS status;
1063 :
1064 3194 : val = dbwrap_record_get_value(local_rec);
1065 3194 : if (val.dsize != sizeof(ptr)) {
1066 0 : status = NT_STATUS_INTERNAL_ERROR;
1067 0 : if (NT_STATUS_IS_OK(state->first_status)) {
1068 0 : state->first_status = status;
1069 : }
1070 0 : state->errors++;
1071 0 : return 0;
1072 : }
1073 :
1074 3194 : memcpy(&ptr, val.dptr, val.dsize);
1075 3194 : tcon = talloc_get_type_abort(ptr, struct smbXsrv_tcon);
1076 :
1077 3194 : vuid = state->vuid;
1078 3194 : if (vuid == 0 && tcon->compat) {
1079 0 : vuid = tcon->compat->vuid;
1080 : }
1081 :
1082 3194 : tcon->db_rec = local_rec;
1083 3194 : status = smbXsrv_tcon_disconnect(tcon, vuid);
1084 3194 : tcon->db_rec = NULL;
1085 3194 : if (!NT_STATUS_IS_OK(status)) {
1086 8 : if (NT_STATUS_IS_OK(state->first_status)) {
1087 8 : state->first_status = status;
1088 : }
1089 8 : state->errors++;
1090 8 : return 0;
1091 : }
1092 :
1093 3186 : return 0;
1094 : }
1095 :
1096 38 : NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn)
1097 : {
1098 38 : struct smbXsrv_client *client = conn->client;
1099 :
1100 : /*
1101 : * Allow a range from 1..65534 with 65534 values.
1102 : */
1103 38 : client->tcon_table = talloc_zero(client, struct smbXsrv_tcon_table);
1104 38 : if (client->tcon_table == NULL) {
1105 0 : return NT_STATUS_NO_MEMORY;
1106 : }
1107 :
1108 38 : return smbXsrv_tcon_table_init(client, client->tcon_table,
1109 : 1, UINT16_MAX - 1,
1110 : UINT16_MAX - 1);
1111 : }
1112 :
1113 28 : NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
1114 : uint32_t session_global_id,
1115 : const char *share_name,
1116 : NTTIME now,
1117 : struct smbXsrv_tcon **_tcon)
1118 : {
1119 28 : struct server_id id = messaging_server_id(conn->client->msg_ctx);
1120 28 : const uint8_t encryption_flags = 0;
1121 :
1122 28 : return smbXsrv_tcon_create(conn->client->tcon_table,
1123 : conn->protocol,
1124 : id, now,
1125 : session_global_id,
1126 : encryption_flags,
1127 : share_name,
1128 : _tcon);
1129 : }
1130 :
1131 3677 : NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
1132 : uint16_t tree_id, NTTIME now,
1133 : struct smbXsrv_tcon **tcon)
1134 : {
1135 3677 : uint32_t local_id = tree_id;
1136 :
1137 3677 : return smbXsrv_tcon_local_lookup(conn->client->tcon_table,
1138 : local_id, now, tcon);
1139 : }
1140 :
1141 5270 : NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client)
1142 : {
1143 :
1144 : /*
1145 : * We do not pass a vuid here,
1146 : * which means the vuid is taken from
1147 : * the tcon->compat->vuid.
1148 : *
1149 : * NOTE: that tcon->compat->vuid may point to
1150 : * a none existing vuid (or the wrong one)
1151 : * as the tcon can exist without a session
1152 : * in SMB1.
1153 : *
1154 : * This matches the old behavior of
1155 : * conn_close_all(), but we should think
1156 : * about how to fix this in future.
1157 : */
1158 5270 : return smbXsrv_tcon_disconnect_all(client->tcon_table, 0);
1159 : }
1160 :
1161 4920 : NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session)
1162 : {
1163 : /*
1164 : * Allow a range from 1..4294967294 with 65534 (same as SMB1) values.
1165 : */
1166 4920 : session->tcon_table = talloc_zero(session, struct smbXsrv_tcon_table);
1167 4920 : if (session->tcon_table == NULL) {
1168 0 : return NT_STATUS_NO_MEMORY;
1169 : }
1170 :
1171 4920 : return smbXsrv_tcon_table_init(session, session->tcon_table,
1172 : 1, UINT32_MAX - 1,
1173 : UINT16_MAX - 1);
1174 : }
1175 :
1176 5607 : NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
1177 : uint32_t session_global_id,
1178 : uint8_t encryption_flags,
1179 : const char *share_name,
1180 : NTTIME now,
1181 : struct smbXsrv_tcon **_tcon)
1182 : {
1183 5607 : struct server_id id = messaging_server_id(session->client->msg_ctx);
1184 :
1185 5607 : return smbXsrv_tcon_create(session->tcon_table,
1186 : PROTOCOL_SMB2_02,
1187 : id, now,
1188 : session_global_id,
1189 : encryption_flags,
1190 : share_name,
1191 : _tcon);
1192 : }
1193 :
1194 133802 : NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
1195 : uint32_t tree_id, NTTIME now,
1196 : struct smbXsrv_tcon **tcon)
1197 : {
1198 133802 : uint32_t local_id = tree_id;
1199 :
1200 133802 : return smbXsrv_tcon_local_lookup(session->tcon_table,
1201 : local_id, now, tcon);
1202 : }
1203 :
1204 4920 : NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session)
1205 : {
1206 4920 : uint64_t vuid = session->global->session_wire_id;
1207 :
1208 4920 : return smbXsrv_tcon_disconnect_all(session->tcon_table, vuid);
1209 : }
1210 :
1211 : struct smbXsrv_tcon_global_traverse_state {
1212 : int (*fn)(struct smbXsrv_tcon_global0 *, void *);
1213 : void *private_data;
1214 : };
1215 :
1216 91 : static int smbXsrv_tcon_global_traverse_fn(struct db_record *rec, void *data)
1217 : {
1218 91 : int ret = -1;
1219 91 : struct smbXsrv_tcon_global_traverse_state *state =
1220 : (struct smbXsrv_tcon_global_traverse_state*)data;
1221 91 : TDB_DATA key = dbwrap_record_get_key(rec);
1222 91 : TDB_DATA val = dbwrap_record_get_value(rec);
1223 91 : DATA_BLOB blob = data_blob_const(val.dptr, val.dsize);
1224 : struct smbXsrv_tcon_globalB global_blob;
1225 : enum ndr_err_code ndr_err;
1226 91 : TALLOC_CTX *frame = talloc_stackframe();
1227 :
1228 91 : ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
1229 : (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_tcon_globalB);
1230 91 : if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1231 0 : DEBUG(1,("Invalid record in smbXsrv_tcon_global.tdb:"
1232 : "key '%s' ndr_pull_struct_blob - %s\n",
1233 : hex_encode_talloc(frame, key.dptr, key.dsize),
1234 : ndr_errstr(ndr_err)));
1235 0 : goto done;
1236 : }
1237 :
1238 91 : if (global_blob.version != SMBXSRV_VERSION_0) {
1239 0 : DEBUG(1,("Invalid record in smbXsrv_tcon_global.tdb:"
1240 : "key '%s' unsupported version - %d\n",
1241 : hex_encode_talloc(frame, key.dptr, key.dsize),
1242 : (int)global_blob.version));
1243 0 : goto done;
1244 : }
1245 :
1246 91 : if (global_blob.info.info0 == NULL) {
1247 0 : DEBUG(1,("Invalid record in smbXsrv_tcon_global.tdb:"
1248 : "key '%s' info0 NULL pointer\n",
1249 : hex_encode_talloc(frame, key.dptr, key.dsize)));
1250 0 : goto done;
1251 : }
1252 :
1253 91 : global_blob.info.info0->db_rec = rec;
1254 91 : ret = state->fn(global_blob.info.info0, state->private_data);
1255 91 : done:
1256 91 : TALLOC_FREE(frame);
1257 91 : return ret;
1258 : }
1259 :
1260 21 : NTSTATUS smbXsrv_tcon_global_traverse(
1261 : int (*fn)(struct smbXsrv_tcon_global0 *, void *),
1262 : void *private_data)
1263 : {
1264 : NTSTATUS status;
1265 21 : int count = 0;
1266 21 : struct smbXsrv_tcon_global_traverse_state state = {
1267 : .fn = fn,
1268 : .private_data = private_data,
1269 : };
1270 :
1271 21 : become_root();
1272 21 : status = smbXsrv_tcon_global_init();
1273 21 : if (!NT_STATUS_IS_OK(status)) {
1274 0 : unbecome_root();
1275 0 : DEBUG(0, ("Failed to initialize tcon_global: %s\n",
1276 : nt_errstr(status)));
1277 0 : return status;
1278 : }
1279 :
1280 21 : status = dbwrap_traverse_read(smbXsrv_tcon_global_db_ctx,
1281 : smbXsrv_tcon_global_traverse_fn,
1282 : &state,
1283 : &count);
1284 21 : unbecome_root();
1285 :
1286 21 : return status;
1287 : }
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