2 Samba Unix/Linux SMB client library
4 Copyright (C) Volker Lendecke 2010
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "utils/net.h"
22 #include "lib/util/server_id.h"
23 #include "dbwrap/dbwrap.h"
24 #include "dbwrap/dbwrap_rbt.h"
27 #include "lib/conn_tdb.h"
28 #include "smbd/globals.h"
30 #include "librpc/gen_ndr/ndr_open_files.h"
32 struct wipedbs_record_marker
{
33 struct wipedbs_record_marker
*prev
, *next
;
38 struct wipedbs_server_data
{
39 struct server_id server_id
;
40 const char *server_id_str
;
42 struct wipedbs_record_marker
*session_records
;
43 struct wipedbs_record_marker
*tcon_records
;
44 struct wipedbs_record_marker
*open_records
;
47 struct wipedbs_state
{
48 struct db_context
*id2server_data
;
60 } session
, tcon
, open
;
63 struct server_id
*server_ids
;
66 struct db_context
*session_db
;
67 struct db_context
*tcon_db
;
68 struct db_context
*open_db
;
74 static struct wipedbs_server_data
*get_server_data(struct wipedbs_state
*state
,
75 const struct server_id
*id
)
77 struct wipedbs_server_data
*ret
= NULL
;
78 TDB_DATA key
, val
= tdb_null
;
81 key
= make_tdb_data((const void*)&id
->unique_id
, sizeof(id
->unique_id
));
82 status
= dbwrap_fetch(state
->id2server_data
, talloc_tos(), key
, &val
);
83 if (NT_STATUS_IS_OK(status
)) {
84 ret
= *(struct wipedbs_server_data
**) val
.dptr
;
85 TALLOC_FREE(val
.dptr
);
86 } else if (NT_STATUS_EQUAL(status
, NT_STATUS_NOT_FOUND
)) {
87 struct server_id_buf idbuf
;
89 server_id_str_buf(*id
, &idbuf
);
91 ret
= talloc_zero(state
->id2server_data
,
92 struct wipedbs_server_data
);
94 DEBUG(0, ("Failed to allocate server entry for %s\n",
99 ret
->server_id_str
= talloc_strdup(ret
, idbuf
.buf
);
101 val
= make_tdb_data((const void*)&ret
, sizeof(ret
));
102 status
= dbwrap_store(state
->id2server_data
,
103 key
, val
, TDB_INSERT
);
104 if (!NT_STATUS_IS_OK(status
)) {
105 DEBUG(0, ("Failed to store server entry for %s: %s\n",
106 idbuf
.buf
, nt_errstr(status
)));
110 struct server_id_buf idbuf
;
111 DEBUG(0, ("Failed to fetch server entry for %s: %s\n",
112 server_id_str_buf(*id
, &idbuf
), nt_errstr(status
)));
115 if (!server_id_equal(id
, &ret
->server_id
)) {
116 struct server_id_buf idbuf1
, idbuf2
;
117 DEBUG(0, ("uniq id collision for %s and %s\n",
118 server_id_str_buf(*id
, &idbuf1
),
119 server_id_str_buf(ret
->server_id
, &idbuf2
)));
120 smb_panic("server_id->unique_id not unique!");
126 static int wipedbs_traverse_sessions(struct smbXsrv_session_global0
*session
,
129 struct wipedbs_state
*state
=
130 talloc_get_type_abort(wipedbs_state
,
131 struct wipedbs_state
);
132 struct wipedbs_server_data
*sd
;
133 struct wipedbs_record_marker
*rec
;
137 assert(session
->num_channels
== 1);
139 state
->stat
.session
.total
++;
141 sd
= get_server_data(state
, &session
->channels
[0].server_id
);
146 if (server_id_is_disconnected(&sd
->server_id
)) {
147 state
->stat
.session
.disconnected
++;
150 rec
= talloc_zero(sd
, struct wipedbs_record_marker
);
152 DEBUG(0, ("Out of memory!\n"));
156 tmp
= dbwrap_record_get_key(session
->db_rec
);
157 rec
->key
= tdb_data_talloc_copy(rec
, tmp
);
158 tmp
= dbwrap_record_get_value(session
->db_rec
);
159 rec
->val
= tdb_data_talloc_copy(rec
, tmp
);
161 rec
->desc
= talloc_asprintf(
162 rec
, "session[global: %u wire: %llu]",
163 session
->session_global_id
,
164 (long long unsigned)session
->session_wire_id
);
166 if ((rec
->key
.dptr
== NULL
) || (rec
->val
.dptr
== NULL
) ||
169 DEBUG(0, ("Out of memory!\n"));
173 state
->session_db
= dbwrap_record_get_db(session
->db_rec
);
175 DLIST_ADD(sd
->session_records
, rec
);
181 static int wipedbs_traverse_tcon(struct smbXsrv_tcon_global0
*tcon
,
184 struct wipedbs_state
*state
=
185 talloc_get_type_abort(wipedbs_state
,
186 struct wipedbs_state
);
187 struct wipedbs_server_data
*sd
;
188 struct wipedbs_record_marker
*rec
;
192 state
->stat
.tcon
.total
++;
194 sd
= get_server_data(state
, &tcon
->server_id
);
199 if (server_id_is_disconnected(&sd
->server_id
)) {
200 state
->stat
.tcon
.disconnected
++;
203 rec
= talloc_zero(sd
, struct wipedbs_record_marker
);
205 DEBUG(0, ("Out of memory!\n"));
209 tmp
= dbwrap_record_get_key(tcon
->db_rec
);
210 rec
->key
= tdb_data_talloc_copy(rec
, tmp
);
211 tmp
= dbwrap_record_get_value(tcon
->db_rec
);
212 rec
->val
= tdb_data_talloc_copy(rec
, tmp
);
214 rec
->desc
= talloc_asprintf(
215 rec
, "tcon[global: %u wire: %u session: %u share: %s]",
216 tcon
->tcon_global_id
, tcon
->tcon_wire_id
,
217 tcon
->session_global_id
, tcon
->share_name
);
219 if ((rec
->key
.dptr
== NULL
) || (rec
->val
.dptr
== NULL
) ||
222 DEBUG(0, ("Out of memory!\n"));
226 state
->tcon_db
= dbwrap_record_get_db(tcon
->db_rec
);
228 DLIST_ADD(sd
->tcon_records
, rec
);
235 static int wipedbs_traverse_open(struct smbXsrv_open_global0
*open
,
238 struct wipedbs_state
*state
=
239 talloc_get_type_abort(wipedbs_state
,
240 struct wipedbs_state
);
241 struct wipedbs_server_data
*sd
;
242 struct wipedbs_record_marker
*rec
;
246 state
->stat
.open
.total
++;
248 sd
= get_server_data(state
, &open
->server_id
);
253 if (server_id_is_disconnected(&sd
->server_id
)) {
254 struct timeval disconnect_time
;
258 state
->stat
.open
.disconnected
++;
260 nttime_to_timeval(&disconnect_time
, open
->disconnect_time
);
261 tdiff
= usec_time_diff(&state
->now
, &disconnect_time
);
262 reached
= (tdiff
>= 1000*open
->durable_timeout_msec
);
264 if (state
->verbose
) {
265 TALLOC_CTX
*mem_ctx
= talloc_new(talloc_tos());
266 enum ndr_err_code ndr_err
;
267 struct vfs_default_durable_cookie cookie
;
269 ndr_err
= ndr_pull_struct_blob(
270 &open
->backend_cookie
, mem_ctx
, &cookie
,
271 (ndr_pull_flags_fn_t
)ndr_pull_vfs_default_durable_cookie
);
272 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err
)) {
273 d_printf("ndr_pull_struct_blob failed\n");
278 d_printf("open[%s/%s id: 0x%" PRIx32
"] disconnected at "
279 "[%s] %us ago with timeout of %us "
281 cookie
.servicepath
, cookie
.base_name
,
282 open
->open_global_id
,
283 nt_time_string(mem_ctx
, open
->disconnect_time
),
284 (unsigned)(tdiff
/1000000),
285 open
->durable_timeout_msec
/ 1000,
286 reached
? "" : " not");
287 talloc_free(mem_ctx
);
294 state
->stat
.open_timed_out
++;
297 rec
= talloc_zero(sd
, struct wipedbs_record_marker
);
299 DEBUG(0, ("Out of memory!\n"));
303 tmp
= dbwrap_record_get_key(open
->db_rec
);
304 rec
->key
= tdb_data_talloc_copy(rec
, tmp
);
305 tmp
= dbwrap_record_get_value(open
->db_rec
);
306 rec
->val
= tdb_data_talloc_copy(rec
, tmp
);
308 rec
->desc
= talloc_asprintf(
309 rec
, "open[global: %u persistent: %llu volatile: %llu]",
310 open
->open_global_id
,
311 (long long unsigned)open
->open_persistent_id
,
312 (long long unsigned)open
->open_volatile_id
);
314 if ((rec
->key
.dptr
== NULL
) || (rec
->val
.dptr
== NULL
) ||
317 DEBUG(0, ("Out of memory!\n"));
321 state
->open_db
= dbwrap_record_get_db(open
->db_rec
);
323 DLIST_ADD(sd
->open_records
, rec
);
330 static int wipedbs_traverse_nop(struct db_record
*rec
, void *private_data
)
335 static int wipedbs_traverse_fill_ids(struct db_record
*rec
, void *wipedbs_state
)
337 struct wipedbs_state
*state
= talloc_get_type_abort(
338 wipedbs_state
, struct wipedbs_state
);
340 TDB_DATA val
= dbwrap_record_get_value(rec
);
342 struct wipedbs_server_data
*sd
= talloc_get_type_abort(
343 *(void**)val
.dptr
, struct wipedbs_server_data
);
345 state
->server_ids
[state
->idx
] = sd
->server_id
;
350 static int wipedbs_traverse_set_exists(struct db_record
*rec
,
353 struct wipedbs_state
*state
= talloc_get_type_abort(
354 wipedbs_state
, struct wipedbs_state
);
356 TDB_DATA val
= dbwrap_record_get_value(rec
);
358 struct wipedbs_server_data
*sd
= talloc_get_type_abort(
359 *(void**)val
.dptr
, struct wipedbs_server_data
);
361 /* assume a stable traverse order for rbt */
362 SMB_ASSERT(server_id_equal(&state
->server_ids
[state
->idx
],
364 sd
->exists
= state
->server_exists
[state
->idx
];
367 state
->stat
.server
.existing
++;
369 if (server_id_is_disconnected(&sd
->server_id
)) {
370 state
->stat
.server
.disconnected
++;
377 static bool serverids_exist(const struct server_id
*ids
, int num_ids
,
382 for (i
=0; i
<num_ids
; i
++) {
383 results
[i
] = serverid_exists(&ids
[i
]);
390 static NTSTATUS
wipedbs_check_server_exists(struct wipedbs_state
*state
)
396 status
= dbwrap_traverse_read(state
->id2server_data
,
397 wipedbs_traverse_nop
, NULL
, &num_servers
);
398 if (!NT_STATUS_IS_OK(status
)) {
399 DEBUG(0, ("Failed to traverse temporary database\n"));
402 state
->stat
.server
.total
= num_servers
;
404 state
->server_ids
= talloc_array(state
, struct server_id
, num_servers
);
405 state
->server_exists
= talloc_array(state
, bool, num_servers
);
406 if (state
->server_ids
== NULL
|| state
->server_exists
== NULL
) {
407 DEBUG(0, ("Out of memory\n"));
412 status
= dbwrap_traverse_read(state
->id2server_data
,
413 wipedbs_traverse_fill_ids
,
415 if (!NT_STATUS_IS_OK(status
)) {
416 DEBUG(0, ("Failed to traverse temporary database\n"));
420 ok
= serverids_exist(state
->server_ids
, num_servers
, state
->server_exists
);
422 DEBUG(0, ("Calling serverids_exist failed\n"));
423 status
= NT_STATUS_UNSUCCESSFUL
;
428 status
= dbwrap_traverse_read(state
->id2server_data
,
429 wipedbs_traverse_set_exists
, state
, NULL
);
430 if (!NT_STATUS_IS_OK(status
)) {
431 DEBUG(0, ("Failed to traverse temporary database\n"));
435 TALLOC_FREE(state
->server_ids
);
436 TALLOC_FREE(state
->server_exists
);
440 static int wipedbs_delete_records(struct db_context
*db
,
441 struct wipedbs_record_marker
*records
,
442 bool dry_run
, bool verbose
, int *count
)
444 struct wipedbs_record_marker
*cur
;
445 struct db_record
*rec
;
448 unsigned num
=0, total
=0;
454 for (cur
= records
; cur
!= NULL
; cur
= cur
->next
) {
456 rec
= dbwrap_fetch_locked(db
, talloc_tos(), cur
->key
);
458 DEBUG(0, ("Failed to fetch record <%s> from %s",
459 cur
->desc
, dbwrap_name(db
)));
462 val
= dbwrap_record_get_value(rec
);
463 if (tdb_data_equal(val
, cur
->val
)) {
465 status
= NT_STATUS_OK
;
467 status
= dbwrap_record_delete(rec
);
469 if (NT_STATUS_IS_OK(status
)) {
472 DEBUG(0, ("Failed to delete record <%s> from %s"
473 ": %s\n", cur
->desc
, dbwrap_name(db
),
477 DEBUG(0, ("Warning: record <%s> from %s changed"
479 cur
->desc
, dbwrap_name(db
)));
482 d_printf("deleting %s\n", cur
->desc
);
488 d_printf("Deleted %u of %u records from %s\n",
489 num
, total
, dbwrap_name(db
));
499 static int wipedbs_traverse_server_data(struct db_record
*rec
,
502 struct wipedbs_state
*state
= talloc_get_type_abort(
503 wipedbs_state
, struct wipedbs_state
);
504 bool dry_run
= state
->testmode
;
505 TDB_DATA val
= dbwrap_record_get_value(rec
);
507 struct wipedbs_server_data
*sd
= talloc_get_type_abort(
508 *(void**)val
.dptr
, struct wipedbs_server_data
);
510 if (state
->verbose
) {
511 d_printf("Server: '%s' %s\n", sd
->server_id_str
,
514 "does not exist, cleaning up...");
521 ret
= wipedbs_delete_records(state
->session_db
, sd
->session_records
,
522 dry_run
, state
->verbose
,
523 &state
->stat
.session
.todelete
);
524 state
->stat
.session
.failure
+= ret
;
526 ret
= wipedbs_delete_records(state
->tcon_db
, sd
->tcon_records
,
527 dry_run
, state
->verbose
,
528 &state
->stat
.tcon
.todelete
);
529 state
->stat
.tcon
.failure
+= ret
;
531 ret
= wipedbs_delete_records(state
->open_db
, sd
->open_records
,
532 dry_run
, state
->verbose
,
533 &state
->stat
.open
.todelete
);
534 state
->stat
.open
.failure
+= ret
;
539 static int net_serverid_wipedbs(struct net_context
*c
, int argc
,
544 struct wipedbs_state
*state
= talloc_zero(talloc_tos(),
545 struct wipedbs_state
);
547 if (c
->display_usage
) {
550 _("net serverid wipedbs [--test] [--verbose]\n"));
553 _("net serverid wipedbs -v\n"));
557 state
->now
= timeval_current();
558 state
->testmode
= c
->opt_testmode
;
559 state
->verbose
= c
->opt_verbose
;
561 state
->id2server_data
= db_open_rbt(state
);
562 if (state
->id2server_data
== NULL
) {
563 DEBUG(0, ("Failed to open temporary database\n"));
567 status
= smbXsrv_session_global_traverse(wipedbs_traverse_sessions
,
569 if (!NT_STATUS_IS_OK(status
)) {
573 status
= smbXsrv_tcon_global_traverse(wipedbs_traverse_tcon
, state
);
574 if (!NT_STATUS_IS_OK(status
)) {
578 status
= smbXsrv_open_global_traverse(wipedbs_traverse_open
, state
);
579 if (!NT_STATUS_IS_OK(status
)) {
583 status
= wipedbs_check_server_exists(state
);
584 if (!NT_STATUS_IS_OK(status
)) {
588 status
= dbwrap_traverse_read(state
->id2server_data
,
589 wipedbs_traverse_server_data
,
591 if (!NT_STATUS_IS_OK(status
)) {
592 DEBUG(0, ("Failed to traverse db: %s\n", nt_errstr(status
)));
596 d_printf("Found %d serverids, %d alive and %d disconnected\n",
597 state
->stat
.server
.total
,
598 state
->stat
.server
.existing
,
599 state
->stat
.server
.disconnected
);
600 d_printf("Found %d sessions, %d alive and %d disconnected"
601 ", cleaned up %d of %d entries\n",
602 state
->stat
.session
.total
,
603 state
->stat
.session
.total
- state
->stat
.session
.todelete
,
604 state
->stat
.session
.disconnected
,
605 state
->stat
.session
.todelete
- state
->stat
.session
.failure
,
606 state
->stat
.session
.todelete
);
607 d_printf("Found %d tcons, %d alive and %d disconnected"
608 ", cleaned up %d of %d entries\n",
609 state
->stat
.tcon
.total
,
610 state
->stat
.tcon
.total
- state
->stat
.tcon
.todelete
,
611 state
->stat
.tcon
.disconnected
,
612 state
->stat
.tcon
.todelete
- state
->stat
.tcon
.failure
,
613 state
->stat
.tcon
.todelete
);
614 d_printf("Found %d opens, %d alive, %d disconnected and %d timed out"
615 ", cleaned up %d of %d entries\n",
616 state
->stat
.open
.total
,
617 state
->stat
.open
.total
- state
->stat
.open
.todelete
618 - (state
->stat
.open
.disconnected
- state
->stat
.open_timed_out
),
619 state
->stat
.open
.disconnected
,
620 state
->stat
.open_timed_out
,
621 state
->stat
.open
.todelete
- state
->stat
.open
.failure
,
622 state
->stat
.open
.todelete
);
630 static int net_serverid_exists(struct net_context
*c
, int argc
,
633 struct server_id pid
;
636 if ((argc
!= 1) || (c
->display_usage
)) {
638 "net serverid exists <serverid>\n");
642 pid
= server_id_from_string(get_my_vnn(), argv
[0]);
643 ok
= serverid_exists(&pid
);
646 d_printf("%s exists\n", argv
[0]);
648 d_printf("%s does not exist\n", argv
[0]);
654 int net_serverid(struct net_context
*c
, int argc
, const char **argv
)
656 struct functable func
[] = {
659 net_serverid_wipedbs
,
661 N_("Clean dead entries from temporary databases"),
662 N_("net serverid wipedbs\n"
663 " Clean dead entries from temporary databases")
669 N_("Show existence of a serverid"),
670 N_("net serverid exists <id>")
672 {NULL
, NULL
, 0, NULL
, NULL
}
675 return net_run_function(c
, argc
, argv
, "net serverid", func
);