2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2011-2012
5 Copyright (C) Michael Adam 2012
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.
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.
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/>.
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"
30 #include "lib/util/util_tdb.h"
31 #include "librpc/gen_ndr/ndr_smbXsrv.h"
34 struct smbXsrv_tcon_table {
36 struct db_context *db_ctx;
43 struct db_context *db_ctx;
47 static struct db_context *smbXsrv_tcon_global_db_ctx = NULL;
49 NTSTATUS smbXsrv_tcon_global_init(void)
51 char *global_path = NULL;
52 struct db_context *db_ctx = NULL;
54 if (smbXsrv_tcon_global_db_ctx != NULL) {
58 global_path = lock_path(talloc_tos(), "smbXsrv_tcon_global.tdb");
59 if (global_path == NULL) {
60 return NT_STATUS_NO_MEMORY;
63 db_ctx = db_open(NULL, global_path,
67 TDB_INCOMPATIBLE_HASH,
68 O_RDWR | O_CREAT, 0600,
71 TALLOC_FREE(global_path);
75 status = map_nt_error_from_unix_common(errno);
80 smbXsrv_tcon_global_db_ctx = db_ctx;
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
91 * TODO: implement string based key
94 #define SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE sizeof(uint32_t)
96 static TDB_DATA smbXsrv_tcon_global_id_to_key(uint32_t id,
101 RSIVAL(key_buf, 0, id);
103 key = make_tdb_data(key_buf, SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE);
109 static NTSTATUS smbXsrv_tcon_global_key_to_id(TDB_DATA key, uint32_t *id)
112 return NT_STATUS_INVALID_PARAMETER;
115 if (key.dsize != SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE) {
116 return NT_STATUS_INTERNAL_DB_CORRUPTION;
119 *id = RIVAL(key.dptr, 0);
125 #define SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE sizeof(uint32_t)
127 static TDB_DATA smbXsrv_tcon_local_id_to_key(uint32_t id,
132 RSIVAL(key_buf, 0, id);
134 key = make_tdb_data(key_buf, SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE);
139 static NTSTATUS smbXsrv_tcon_local_key_to_id(TDB_DATA key, uint32_t *id)
142 return NT_STATUS_INVALID_PARAMETER;
145 if (key.dsize != SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE) {
146 return NT_STATUS_INTERNAL_DB_CORRUPTION;
149 *id = RIVAL(key.dptr, 0);
154 static struct db_record *smbXsrv_tcon_global_fetch_locked(
155 struct db_context *db,
160 uint8_t key_buf[SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE];
161 struct db_record *rec = NULL;
163 key = smbXsrv_tcon_global_id_to_key(id, key_buf);
165 rec = dbwrap_fetch_locked(db, mem_ctx, key);
168 DBG_DEBUG("Failed to lock global id 0x%08x, key '%s'\n", id,
169 hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
175 static struct db_record *smbXsrv_tcon_local_fetch_locked(
176 struct db_context *db,
181 uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
182 struct db_record *rec = NULL;
184 key = smbXsrv_tcon_local_id_to_key(id, key_buf);
186 rec = dbwrap_fetch_locked(db, mem_ctx, key);
189 DBG_DEBUG("Failed to lock local id 0x%08x, key '%s'\n", id,
190 hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
196 static NTSTATUS smbXsrv_tcon_table_init(TALLOC_CTX *mem_ctx,
197 struct smbXsrv_tcon_table *table,
205 if (lowest_id > highest_id) {
206 return NT_STATUS_INTERNAL_ERROR;
209 max_range = highest_id;
210 max_range -= lowest_id;
213 if (max_tcons > max_range) {
214 return NT_STATUS_INTERNAL_ERROR;
218 table->local.db_ctx = db_open_rbt(table);
219 if (table->local.db_ctx == NULL) {
220 return NT_STATUS_NO_MEMORY;
222 table->local.lowest_id = lowest_id;
223 table->local.highest_id = highest_id;
224 table->local.max_tcons = max_tcons;
226 status = smbXsrv_tcon_global_init();
227 if (!NT_STATUS_IS_OK(status)) {
231 table->global.db_ctx = smbXsrv_tcon_global_db_ctx;
236 struct smb1srv_tcon_local_allocate_state {
237 const uint32_t lowest_id;
238 const uint32_t highest_id;
244 static int smb1srv_tcon_local_allocate_traverse(struct db_record *rec,
247 struct smb1srv_tcon_local_allocate_state *state =
248 (struct smb1srv_tcon_local_allocate_state *)private_data;
249 TDB_DATA key = dbwrap_record_get_key(rec);
253 status = smbXsrv_tcon_local_key_to_id(key, &id);
254 if (!NT_STATUS_IS_OK(status)) {
255 state->status = status;
259 if (id <= state->last_id) {
260 state->status = NT_STATUS_INTERNAL_DB_CORRUPTION;
265 if (id > state->useable_id) {
266 state->status = NT_STATUS_OK;
270 if (state->useable_id == state->highest_id) {
271 state->status = NT_STATUS_INSUFFICIENT_RESOURCES;
275 state->useable_id +=1;
279 static NTSTATUS smb1srv_tcon_local_allocate_id(struct db_context *db,
283 struct db_record **_rec,
286 struct smb1srv_tcon_local_allocate_state state = {
287 .lowest_id = lowest_id,
288 .highest_id = highest_id,
290 .useable_id = lowest_id,
291 .status = NT_STATUS_INTERNAL_ERROR,
301 if (lowest_id > highest_id) {
302 return NT_STATUS_INSUFFICIENT_RESOURCES;
306 * first we try randomly
308 range = (highest_id - lowest_id) + 1;
310 for (i = 0; i < (range / 2); i++) {
313 struct db_record *rec = NULL;
315 id = generate_random() % range;
318 if (id < lowest_id) {
321 if (id > highest_id) {
325 rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
327 return NT_STATUS_INSUFFICIENT_RESOURCES;
330 val = dbwrap_record_get_value(rec);
331 if (val.dsize != 0) {
342 * if the range is almost full,
343 * we traverse the whole table
344 * (this relies on sorted behavior of dbwrap_rbt)
346 status = dbwrap_traverse_read(db, smb1srv_tcon_local_allocate_traverse,
348 if (NT_STATUS_IS_OK(status)) {
349 if (NT_STATUS_IS_OK(state.status)) {
350 return NT_STATUS_INTERNAL_ERROR;
353 if (!NT_STATUS_EQUAL(state.status, NT_STATUS_INTERNAL_ERROR)) {
357 if (state.useable_id <= state.highest_id) {
358 state.status = NT_STATUS_OK;
360 return NT_STATUS_INSUFFICIENT_RESOURCES;
362 } else if (!NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_DB_CORRUPTION)) {
364 * Here we really expect NT_STATUS_INTERNAL_DB_CORRUPTION!
366 * If we get anything else it is an error, because it
367 * means we did not manage to find a free slot in
370 return NT_STATUS_INSUFFICIENT_RESOURCES;
373 if (NT_STATUS_IS_OK(state.status)) {
376 struct db_record *rec = NULL;
378 id = state.useable_id;
380 rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
382 return NT_STATUS_INSUFFICIENT_RESOURCES;
385 val = dbwrap_record_get_value(rec);
386 if (val.dsize != 0) {
388 return NT_STATUS_INTERNAL_DB_CORRUPTION;
399 struct smbXsrv_tcon_local_fetch_state {
400 struct smbXsrv_tcon *tcon;
404 static void smbXsrv_tcon_local_fetch_parser(TDB_DATA key, TDB_DATA data,
407 struct smbXsrv_tcon_local_fetch_state *state =
408 (struct smbXsrv_tcon_local_fetch_state *)private_data;
411 if (data.dsize != sizeof(ptr)) {
412 state->status = NT_STATUS_INTERNAL_DB_ERROR;
416 memcpy(&ptr, data.dptr, data.dsize);
417 state->tcon = talloc_get_type_abort(ptr, struct smbXsrv_tcon);
418 state->status = NT_STATUS_OK;
421 static NTSTATUS smbXsrv_tcon_local_lookup(struct smbXsrv_tcon_table *table,
422 uint32_t tcon_local_id,
424 struct smbXsrv_tcon **_tcon)
426 struct smbXsrv_tcon_local_fetch_state state = {
428 .status = NT_STATUS_INTERNAL_ERROR,
430 uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
436 if (tcon_local_id == 0) {
437 return NT_STATUS_NETWORK_NAME_DELETED;
441 /* this might happen before the end of negprot */
442 return NT_STATUS_NETWORK_NAME_DELETED;
445 if (table->local.db_ctx == NULL) {
446 return NT_STATUS_INTERNAL_ERROR;
449 key = smbXsrv_tcon_local_id_to_key(tcon_local_id, key_buf);
451 status = dbwrap_parse_record(table->local.db_ctx, key,
452 smbXsrv_tcon_local_fetch_parser,
454 if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
455 return NT_STATUS_NETWORK_NAME_DELETED;
456 } else if (!NT_STATUS_IS_OK(status)) {
459 if (!NT_STATUS_IS_OK(state.status)) {
463 if (NT_STATUS_EQUAL(state.tcon->status, NT_STATUS_NETWORK_NAME_DELETED)) {
464 return NT_STATUS_NETWORK_NAME_DELETED;
467 state.tcon->idle_time = now;
470 return state.tcon->status;
473 static int smbXsrv_tcon_global_destructor(struct smbXsrv_tcon_global0 *global)
478 static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
482 struct smbXsrv_tcon_global0 **_g);
484 static NTSTATUS smbXsrv_tcon_global_allocate(struct db_context *db,
486 struct smbXsrv_tcon_global0 **_global)
489 struct smbXsrv_tcon_global0 *global = NULL;
490 uint32_t last_free = 0;
491 const uint32_t min_tries = 3;
495 global = talloc_zero(mem_ctx, struct smbXsrv_tcon_global0);
496 if (global == NULL) {
497 return NT_STATUS_NO_MEMORY;
499 talloc_set_destructor(global, smbXsrv_tcon_global_destructor);
502 * Here we just randomly try the whole 32-bit space
504 * We use just 32-bit, because we want to reuse the
507 for (i = 0; i < UINT32_MAX; i++) {
508 bool is_free = false;
509 bool was_free = false;
512 if (i >= min_tries && last_free != 0) {
515 id = generate_random();
520 if (id == UINT32_MAX) {
524 global->db_rec = smbXsrv_tcon_global_fetch_locked(db, id,
526 if (global->db_rec == NULL) {
528 return NT_STATUS_INSUFFICIENT_RESOURCES;
531 smbXsrv_tcon_global_verify_record(global->db_rec,
537 TALLOC_FREE(global->db_rec);
541 if (!was_free && i < min_tries) {
543 * The session_id is free now,
544 * but was not free before.
546 * This happens if a smbd crashed
547 * and did not cleanup the record.
549 * If this is one of our first tries,
550 * then we try to find a real free one.
552 if (last_free == 0) {
555 TALLOC_FREE(global->db_rec);
559 global->tcon_global_id = id;
565 /* should not be reached */
567 return NT_STATUS_INTERNAL_ERROR;
570 static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
574 struct smbXsrv_tcon_global0 **_g)
579 struct smbXsrv_tcon_globalB global_blob;
580 enum ndr_err_code ndr_err;
581 struct smbXsrv_tcon_global0 *global = NULL;
583 TALLOC_CTX *frame = talloc_stackframe();
594 key = dbwrap_record_get_key(db_rec);
596 val = dbwrap_record_get_value(db_rec);
597 if (val.dsize == 0) {
606 blob = data_blob_const(val.dptr, val.dsize);
608 ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
609 (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_tcon_globalB);
610 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
611 NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
612 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),
620 DEBUG(10,("smbXsrv_tcon_global_verify_record\n"));
622 NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
625 if (global_blob.version != SMBXSRV_VERSION_0) {
626 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 NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
635 global = global_blob.info.info0;
637 exists = serverid_exists(&global->server_id);
639 struct server_id_buf idbuf;
640 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)));
645 NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
648 dbwrap_record_delete(db_rec);
654 *_g = talloc_move(mem_ctx, &global);
659 static NTSTATUS smbXsrv_tcon_global_store(struct smbXsrv_tcon_global0 *global)
661 struct smbXsrv_tcon_globalB global_blob;
662 DATA_BLOB blob = data_blob_null;
666 enum ndr_err_code ndr_err;
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.
674 if (global->db_rec == NULL) {
675 return NT_STATUS_INTERNAL_ERROR;
678 key = dbwrap_record_get_key(global->db_rec);
679 val = dbwrap_record_get_value(global->db_rec);
681 ZERO_STRUCT(global_blob);
682 global_blob.version = smbXsrv_version_global_current();
683 if (val.dsize >= 8) {
684 global_blob.seqnum = IVAL(val.dptr, 4);
686 global_blob.seqnum += 1;
687 global_blob.info.info0 = global;
689 ndr_err = ndr_push_struct_blob(&blob, global->db_rec, &global_blob,
690 (ndr_push_flags_fn_t)ndr_push_smbXsrv_tcon_globalB);
691 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
692 status = ndr_map_error2ntstatus(ndr_err);
693 DEBUG(1,("smbXsrv_tcon_global_store: key '%s' ndr_push - %s\n",
694 hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
696 TALLOC_FREE(global->db_rec);
700 val = make_tdb_data(blob.data, blob.length);
701 status = dbwrap_record_store(global->db_rec, val, TDB_REPLACE);
702 if (!NT_STATUS_IS_OK(status)) {
703 DEBUG(1,("smbXsrv_tcon_global_store: key '%s' store - %s\n",
704 hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
706 TALLOC_FREE(global->db_rec);
711 DEBUG(10,("smbXsrv_tcon_global_store: key '%s' stored\n",
712 hex_encode_talloc(global->db_rec, key.dptr, key.dsize)));
713 NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
716 TALLOC_FREE(global->db_rec);
721 static int smbXsrv_tcon_destructor(struct smbXsrv_tcon *tcon)
725 status = smbXsrv_tcon_disconnect(tcon, 0);
726 if (!NT_STATUS_IS_OK(status)) {
727 DEBUG(0, ("smbXsrv_tcon_destructor: "
728 "smbXsrv_tcon_disconnect() failed - %s\n",
732 TALLOC_FREE(tcon->global);
737 static NTSTATUS smbXsrv_tcon_create(struct smbXsrv_tcon_table *table,
738 enum protocol_types protocol,
739 struct server_id server_id,
741 struct smbXsrv_tcon **_tcon)
743 struct db_record *local_rec = NULL;
744 struct smbXsrv_tcon *tcon = NULL;
747 struct smbXsrv_tcon_global0 *global = NULL;
750 if (table->local.num_tcons >= table->local.max_tcons) {
751 return NT_STATUS_INSUFFICIENT_RESOURCES;
754 tcon = talloc_zero(table, struct smbXsrv_tcon);
756 return NT_STATUS_NO_MEMORY;
759 tcon->status = NT_STATUS_INTERNAL_ERROR;
760 tcon->idle_time = now;
762 status = smbXsrv_tcon_global_allocate(table->global.db_ctx,
764 if (!NT_STATUS_IS_OK(status)) {
768 tcon->global = global;
770 if (protocol >= PROTOCOL_SMB2_02) {
771 uint64_t id = global->tcon_global_id;
773 global->tcon_wire_id = id;
775 tcon->local_id = global->tcon_global_id;
777 local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
779 tcon /* TALLOC_CTX */);
780 if (local_rec == NULL) {
782 return NT_STATUS_NO_MEMORY;
785 val = dbwrap_record_get_value(local_rec);
786 if (val.dsize != 0) {
788 return NT_STATUS_INTERNAL_DB_CORRUPTION;
792 status = smb1srv_tcon_local_allocate_id(table->local.db_ctx,
793 table->local.lowest_id,
794 table->local.highest_id,
798 if (!NT_STATUS_IS_OK(status)) {
803 global->tcon_wire_id = tcon->local_id;
806 global->creation_time = now;
808 global->server_id = server_id;
811 val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
812 status = dbwrap_record_store(local_rec, val, TDB_REPLACE);
813 TALLOC_FREE(local_rec);
814 if (!NT_STATUS_IS_OK(status)) {
818 table->local.num_tcons += 1;
820 talloc_set_destructor(tcon, smbXsrv_tcon_destructor);
822 status = smbXsrv_tcon_global_store(global);
823 if (!NT_STATUS_IS_OK(status)) {
824 DEBUG(0,("smbXsrv_tcon_create: "
825 "global_id (0x%08x) store failed - %s\n",
826 tcon->global->tcon_global_id,
833 struct smbXsrv_tconB tcon_blob;
835 ZERO_STRUCT(tcon_blob);
836 tcon_blob.version = SMBXSRV_VERSION_0;
837 tcon_blob.info.info0 = tcon;
839 DEBUG(10,("smbXsrv_tcon_create: global_id (0x%08x) stored\n",
840 tcon->global->tcon_global_id));
841 NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
848 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon)
850 struct smbXsrv_tcon_table *table = tcon->table;
853 if (tcon->global->db_rec != NULL) {
854 DEBUG(0, ("smbXsrv_tcon_update(0x%08x): "
855 "Called with db_rec != NULL'\n",
856 tcon->global->tcon_global_id));
857 return NT_STATUS_INTERNAL_ERROR;
860 tcon->global->db_rec = smbXsrv_tcon_global_fetch_locked(
861 table->global.db_ctx,
862 tcon->global->tcon_global_id,
863 tcon->global /* TALLOC_CTX */);
864 if (tcon->global->db_rec == NULL) {
865 return NT_STATUS_INTERNAL_DB_ERROR;
868 status = smbXsrv_tcon_global_store(tcon->global);
869 if (!NT_STATUS_IS_OK(status)) {
870 DEBUG(0,("smbXsrv_tcon_update: "
871 "global_id (0x%08x) store failed - %s\n",
872 tcon->global->tcon_global_id,
878 struct smbXsrv_tconB tcon_blob;
880 ZERO_STRUCT(tcon_blob);
881 tcon_blob.version = SMBXSRV_VERSION_0;
882 tcon_blob.info.info0 = tcon;
884 DEBUG(10,("smbXsrv_tcon_update: global_id (0x%08x) stored\n",
885 tcon->global->tcon_global_id));
886 NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
892 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid)
894 struct smbXsrv_tcon_table *table;
895 struct db_record *local_rec = NULL;
896 struct db_record *global_rec = NULL;
898 NTSTATUS error = NT_STATUS_OK;
900 if (tcon->table == NULL) {
910 ok = chdir_current_service(tcon->compat);
912 status = NT_STATUS_INTERNAL_ERROR;
913 DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
914 "chdir_current_service() failed: %s\n",
915 tcon->global->tcon_global_id,
916 tcon->global->share_name,
922 close_cnum(tcon->compat, vuid);
926 tcon->status = NT_STATUS_NETWORK_NAME_DELETED;
928 global_rec = tcon->global->db_rec;
929 tcon->global->db_rec = NULL;
930 if (global_rec == NULL) {
931 global_rec = smbXsrv_tcon_global_fetch_locked(
932 table->global.db_ctx,
933 tcon->global->tcon_global_id,
934 tcon->global /* TALLOC_CTX */);
935 if (global_rec == NULL) {
936 error = NT_STATUS_INTERNAL_ERROR;
940 if (global_rec != NULL) {
941 status = dbwrap_record_delete(global_rec);
942 if (!NT_STATUS_IS_OK(status)) {
943 TDB_DATA key = dbwrap_record_get_key(global_rec);
945 DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
946 "failed to delete global key '%s': %s\n",
947 tcon->global->tcon_global_id,
948 tcon->global->share_name,
949 hex_encode_talloc(global_rec, key.dptr,
955 TALLOC_FREE(global_rec);
957 local_rec = tcon->db_rec;
958 if (local_rec == NULL) {
959 local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
961 tcon /* TALLOC_CTX */);
962 if (local_rec == NULL) {
963 error = NT_STATUS_INTERNAL_ERROR;
967 if (local_rec != NULL) {
968 status = dbwrap_record_delete(local_rec);
969 if (!NT_STATUS_IS_OK(status)) {
970 TDB_DATA key = dbwrap_record_get_key(local_rec);
972 DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
973 "failed to delete local key '%s': %s\n",
974 tcon->global->tcon_global_id,
975 tcon->global->share_name,
976 hex_encode_talloc(local_rec, key.dptr,
981 table->local.num_tcons -= 1;
983 if (tcon->db_rec == NULL) {
984 TALLOC_FREE(local_rec);
991 struct smbXsrv_tcon_disconnect_all_state {
993 NTSTATUS first_status;
997 static int smbXsrv_tcon_disconnect_all_callback(struct db_record *local_rec,
1000 static NTSTATUS smbXsrv_tcon_disconnect_all(struct smbXsrv_tcon_table *table,
1003 struct smbXsrv_tcon_disconnect_all_state state;
1007 if (table == NULL) {
1008 return NT_STATUS_OK;
1014 status = dbwrap_traverse(table->local.db_ctx,
1015 smbXsrv_tcon_disconnect_all_callback,
1017 if (!NT_STATUS_IS_OK(status)) {
1018 DEBUG(0, ("smbXsrv_tcon_disconnect_all: "
1019 "dbwrap_traverse() failed: %s\n",
1020 nt_errstr(status)));
1024 if (!NT_STATUS_IS_OK(state.first_status)) {
1025 DEBUG(0, ("smbXsrv_tcon_disconnect_all: "
1026 "count[%d] errors[%d] first[%s]\n",
1027 count, state.errors,
1028 nt_errstr(state.first_status)));
1029 return state.first_status;
1032 return NT_STATUS_OK;
1035 static int smbXsrv_tcon_disconnect_all_callback(struct db_record *local_rec,
1038 struct smbXsrv_tcon_disconnect_all_state *state =
1039 (struct smbXsrv_tcon_disconnect_all_state *)private_data;
1042 struct smbXsrv_tcon *tcon = NULL;
1046 val = dbwrap_record_get_value(local_rec);
1047 if (val.dsize != sizeof(ptr)) {
1048 status = NT_STATUS_INTERNAL_ERROR;
1049 if (NT_STATUS_IS_OK(state->first_status)) {
1050 state->first_status = status;
1056 memcpy(&ptr, val.dptr, val.dsize);
1057 tcon = talloc_get_type_abort(ptr, struct smbXsrv_tcon);
1060 if (vuid == 0 && tcon->compat) {
1061 vuid = tcon->compat->vuid;
1064 tcon->db_rec = local_rec;
1065 status = smbXsrv_tcon_disconnect(tcon, vuid);
1066 if (!NT_STATUS_IS_OK(status)) {
1067 if (NT_STATUS_IS_OK(state->first_status)) {
1068 state->first_status = status;
1077 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn)
1079 struct smbXsrv_client *client = conn->client;
1082 * Allow a range from 1..65534 with 65534 values.
1084 client->tcon_table = talloc_zero(client, struct smbXsrv_tcon_table);
1085 if (client->tcon_table == NULL) {
1086 return NT_STATUS_NO_MEMORY;
1089 return smbXsrv_tcon_table_init(client, client->tcon_table,
1094 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
1096 struct smbXsrv_tcon **_tcon)
1098 struct server_id id = messaging_server_id(conn->client->msg_ctx);
1100 return smbXsrv_tcon_create(conn->client->tcon_table,
1105 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
1106 uint16_t tree_id, NTTIME now,
1107 struct smbXsrv_tcon **tcon)
1109 uint32_t local_id = tree_id;
1111 return smbXsrv_tcon_local_lookup(conn->client->tcon_table,
1112 local_id, now, tcon);
1115 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client)
1119 * We do not pass a vuid here,
1120 * which means the vuid is taken from
1121 * the tcon->compat->vuid.
1123 * NOTE: that tcon->compat->vuid may point to
1124 * a none existing vuid (or the wrong one)
1125 * as the tcon can exist without a session
1128 * This matches the old behavior of
1129 * conn_close_all(), but we should think
1130 * about how to fix this in future.
1132 return smbXsrv_tcon_disconnect_all(client->tcon_table, 0);
1135 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session)
1138 * Allow a range from 1..4294967294 with 65534 (same as SMB1) values.
1140 session->tcon_table = talloc_zero(session, struct smbXsrv_tcon_table);
1141 if (session->tcon_table == NULL) {
1142 return NT_STATUS_NO_MEMORY;
1145 return smbXsrv_tcon_table_init(session, session->tcon_table,
1150 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
1152 struct smbXsrv_tcon **_tcon)
1154 struct server_id id = messaging_server_id(session->client->msg_ctx);
1156 return smbXsrv_tcon_create(session->tcon_table,
1161 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
1162 uint32_t tree_id, NTTIME now,
1163 struct smbXsrv_tcon **tcon)
1165 uint32_t local_id = tree_id;
1167 return smbXsrv_tcon_local_lookup(session->tcon_table,
1168 local_id, now, tcon);
1171 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session)
1175 if (session->compat) {
1176 vuid = session->compat->vuid;
1181 return smbXsrv_tcon_disconnect_all(session->tcon_table, vuid);
1184 struct smbXsrv_tcon_global_traverse_state {
1185 int (*fn)(struct smbXsrv_tcon_global0 *, void *);
1189 static int smbXsrv_tcon_global_traverse_fn(struct db_record *rec, void *data)
1192 struct smbXsrv_tcon_global_traverse_state *state =
1193 (struct smbXsrv_tcon_global_traverse_state*)data;
1194 TDB_DATA key = dbwrap_record_get_key(rec);
1195 TDB_DATA val = dbwrap_record_get_value(rec);
1196 DATA_BLOB blob = data_blob_const(val.dptr, val.dsize);
1197 struct smbXsrv_tcon_globalB global_blob;
1198 enum ndr_err_code ndr_err;
1199 TALLOC_CTX *frame = talloc_stackframe();
1201 ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
1202 (ndr_pull_flags_fn_t)ndr_pull_smbXsrv_tcon_globalB);
1203 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1204 DEBUG(1,("Invalid record in smbXsrv_tcon_global.tdb:"
1205 "key '%s' ndr_pull_struct_blob - %s\n",
1206 hex_encode_talloc(frame, key.dptr, key.dsize),
1207 ndr_errstr(ndr_err)));
1211 if (global_blob.version != SMBXSRV_VERSION_0) {
1212 DEBUG(1,("Invalid record in smbXsrv_tcon_global.tdb:"
1213 "key '%s' unsupported version - %d\n",
1214 hex_encode_talloc(frame, key.dptr, key.dsize),
1215 (int)global_blob.version));
1219 global_blob.info.info0->db_rec = rec;
1220 ret = state->fn(global_blob.info.info0, state->private_data);
1226 NTSTATUS smbXsrv_tcon_global_traverse(
1227 int (*fn)(struct smbXsrv_tcon_global0 *, void *),
1232 struct smbXsrv_tcon_global_traverse_state state = {
1234 .private_data = private_data,
1238 status = smbXsrv_tcon_global_init();
1239 if (!NT_STATUS_IS_OK(status)) {
1241 DEBUG(0, ("Failed to initialize tcon_global: %s\n",
1242 nt_errstr(status)));
1246 status = dbwrap_traverse_read(smbXsrv_tcon_global_db_ctx,
1247 smbXsrv_tcon_global_traverse_fn,