2 Unix SMB/Netbios implementation.
4 Copyright (C) Stefan Metzmacher 2009
5 Copyright (C) Jeremy Allison 2010
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/>.
21 #include "system/select.h"
22 #include "librpc/gen_ndr/smbXsrv.h"
26 extern struct aio_extra
*aio_list_head
;
27 extern struct tevent_signal
*aio_signal_event
;
28 extern int aio_pending_size
;
29 extern int outstanding_aio_calls
;
33 struct smbd_dmapi_context
;
34 extern struct smbd_dmapi_context
*dmapi_ctx
;
37 extern bool dfree_broken
;
39 /* how many write cache buffers have been allocated */
40 extern unsigned int allocated_write_caches
;
42 /* A singleton cache to speed up searching by dev/inode. */
43 struct fsp_singleton_cache
{
48 extern const struct mangle_fns
*mangle_fns
;
50 extern unsigned char *chartest
;
52 extern struct tdb_context
*tdb_mangled_cache
;
55 this determines how many characters are used from the original filename
56 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
57 The largest possible value is 6.
59 extern unsigned mangle_prefix
;
63 extern bool logged_ioctl_message
;
67 extern time_t last_smb_conf_reload_time
;
68 extern time_t last_printer_reload_time
;
69 extern pid_t background_lpq_updater_pid
;
71 /****************************************************************************
72 structure to hold a linked list of queued messages.
74 ****************************************************************************/
75 extern uint32_t common_flags2
;
77 extern struct smb_trans_enc_state
*partial_srv_trans_enc_ctx
;
78 extern struct smb_trans_enc_state
*srv_trans_enc_ctx
;
81 struct security_unix_token ut
;
82 struct security_token
*token
;
84 /* A stack of security contexts. We include the current context as being
85 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
86 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
87 extern int sec_ctx_stack_ndx
;
88 extern bool become_uid_done
;
89 extern bool become_gid_done
;
91 extern connection_struct
*last_conn
;
92 extern uint16_t last_flags
;
94 extern uint32_t global_client_caps
;
96 extern uint16_t fnf_handle
;
99 connection_struct
*conn
;
102 /* A stack of current_user connection contexts. */
103 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
104 extern int conn_ctx_stack_ndx
;
106 struct vfs_init_function_entry
;
107 extern struct vfs_init_function_entry
*backends
;
108 extern char *sparse_buf
;
109 extern char *LastDir
;
111 struct smbd_parent_context
;
112 extern struct smbd_parent_context
*am_parent
;
113 extern struct memcache
*smbd_memcache_ctx
;
114 extern bool exit_firsttime
;
116 struct tstream_context
;
117 struct smbd_smb2_request
;
119 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
);
121 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
122 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
124 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
129 struct smbd_lock_element
*ulocks
,
131 struct smbd_lock_element
*locks
,
134 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
138 struct smb_filename
*smb_fname
,
140 struct timespec write_time_ts
,
141 struct ea_list
*ea_list
,
145 unsigned int max_data_bytes
,
147 unsigned int *pdata_size
);
149 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
150 struct smb_request
*req
,
154 struct smb_filename
*smb_fname
,
155 char **ppdata
, int total_data
,
158 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
162 unsigned int max_data_bytes
,
166 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
167 struct dptr_struct
*dirptr
,
172 bool (*match_fn
)(TALLOC_CTX
*ctx
,
177 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
179 struct smb_filename
*smb_fname
,
183 struct smb_filename
**_smb_fname
,
187 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
188 connection_struct
*conn
,
189 struct dptr_struct
*dirptr
,
191 const char *path_mask
,
194 int requires_resume_key
,
204 bool *got_exact_match
,
205 int *_last_entry_off
,
206 struct ea_list
*name_list
);
208 NTSTATUS
smbd_calculate_access_mask(connection_struct
*conn
,
209 const struct smb_filename
*smb_fname
,
210 uint32_t access_mask
,
211 uint32_t *access_mask_out
);
213 void smbd_notify_cancel_by_smbreq(const struct smb_request
*smbreq
);
215 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
217 const char *location
);
218 #define smbd_server_connection_terminate(sconn, reason) \
219 smbd_server_connection_terminate_ex(sconn, reason, __location__)
221 const char *smb2_opcode_name(uint16_t opcode
);
222 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
224 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
225 void reply_smb20ff(struct smb_request
*req
, uint16_t choice
);
226 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
227 const uint8_t *inbuf
, size_t size
);
229 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
232 const char *location
);
233 #define smbd_smb2_request_error(req, status) \
234 smbd_smb2_request_error_ex(req, status, NULL, __location__)
235 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
237 DATA_BLOB body
, DATA_BLOB
*dyn
,
238 const char *location
);
239 #define smbd_smb2_request_done(req, body, dyn) \
240 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
242 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
243 uint64_t file_id_persistent
,
244 uint64_t file_id_volatile
,
245 uint8_t oplock_level
);
247 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
248 struct tevent_req
*subreq
,
249 uint32_t defer_time
);
251 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
252 void remove_smb2_chained_fsp(files_struct
*fsp
);
254 NTSTATUS
smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request
*req
,
255 uint32_t data_length
);
257 NTSTATUS
smbd_smb2_request_verify_sizes(struct smbd_smb2_request
*req
,
258 size_t expected_body_size
);
260 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
261 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
262 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
263 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
264 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
265 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
266 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
267 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
268 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
269 NTSTATUS
smb2_read_complete(struct tevent_req
*req
, ssize_t nread
, int err
);
270 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
271 NTSTATUS
smb2_write_complete(struct tevent_req
*req
, ssize_t nwritten
, int err
);
272 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
273 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
274 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
275 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
276 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
277 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
278 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
279 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
280 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
281 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
282 struct tevent_immediate
*im
,
285 /* SMB1 -> SMB2 glue. */
286 void send_break_message_smb2(files_struct
*fsp
, int level
);
287 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
288 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
289 struct smb_request
*req
,
294 enum brl_type lock_type
,
295 enum brl_flavour lock_flav
,
298 uint64_t blocking_smblctx
);
299 void process_blocking_lock_queue_smb2(
300 struct smbd_server_connection
*sconn
, struct timeval tv_curr
);
301 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
302 struct byte_range_lock
*br_lck
,
303 enum file_close_type close_type
);
304 /* From smbd/smb2_create.c */
305 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
306 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
307 struct timeval
*p_request_time
,
309 bool open_was_deferred_smb2(struct smbd_server_connection
*sconn
,
311 void remove_deferred_open_message_smb2(
312 struct smbd_server_connection
*sconn
, uint64_t mid
);
313 bool schedule_deferred_open_message_smb2(
314 struct smbd_server_connection
*sconn
, uint64_t mid
);
315 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
316 struct timeval request_time
,
317 struct timeval timeout
,
322 struct smbXsrv_connection
{
323 struct smbd_server_connection
*sconn
;
325 const struct tsocket_address
*local_address
;
326 const struct tsocket_address
*remote_address
;
327 const char *remote_hostname
;
329 struct tevent_context
*ev_ctx
;
330 struct messaging_context
*msg_ctx
;
332 enum protocol_types protocol
;
336 uint32_t capabilities
;
338 uint16_t security_mode
;
339 uint16_t num_dialects
;
343 uint32_t capabilities
;
345 uint16_t security_mode
;
353 struct msg_state
*msg_state
;
355 uint64_t smbd_idle_profstamp
;
358 * this session_table is used for SMB1 and SMB2,
360 struct smbXsrv_session_table
*session_table
;
362 * this tcon_table is only used for SMB1.
364 struct smbXsrv_tcon_table
*tcon_table
;
366 * this open_table is used for SMB1 and SMB2,
367 * because we have a global sconn->real_max_open_files
370 struct smbXsrv_open_table
*open_table
;
373 NTSTATUS
smbXsrv_version_global_init(const struct server_id
*server_id
);
374 uint32_t smbXsrv_version_global_current(void);
376 NTSTATUS
smbXsrv_connection_init_tables(struct smbXsrv_connection
*conn
,
377 enum protocol_types protocol
);
379 NTSTATUS
smbXsrv_session_global_init(void);
380 NTSTATUS
smbXsrv_session_create(struct smbXsrv_connection
*conn
,
382 struct smbXsrv_session
**_session
);
383 NTSTATUS
smbXsrv_session_update(struct smbXsrv_session
*session
);
384 NTSTATUS
smbXsrv_session_logoff(struct smbXsrv_session
*session
);
385 NTSTATUS
smbXsrv_session_logoff_all(struct smbXsrv_connection
*conn
);
386 NTSTATUS
smb1srv_session_table_init(struct smbXsrv_connection
*conn
);
387 NTSTATUS
smb1srv_session_lookup(struct smbXsrv_connection
*conn
,
388 uint16_t vuid
, NTTIME now
,
389 struct smbXsrv_session
**session
);
390 NTSTATUS
smb2srv_session_table_init(struct smbXsrv_connection
*conn
);
391 NTSTATUS
smb2srv_session_lookup(struct smbXsrv_connection
*conn
,
392 uint64_t session_id
, NTTIME now
,
393 struct smbXsrv_session
**session
);
394 struct tevent_req
*smb2srv_session_close_previous_send(TALLOC_CTX
*mem_ctx
,
395 struct tevent_context
*ev
,
396 struct smbXsrv_connection
*conn
,
397 struct auth_session_info
*session_info
,
398 uint64_t previous_session_id
,
399 uint64_t current_session_id
);
400 NTSTATUS
smb2srv_session_close_previous_recv(struct tevent_req
*req
);
402 NTSTATUS
smbXsrv_tcon_global_init(void);
403 NTSTATUS
smbXsrv_tcon_update(struct smbXsrv_tcon
*tcon
);
404 NTSTATUS
smbXsrv_tcon_disconnect(struct smbXsrv_tcon
*tcon
, uint64_t vuid
);
405 NTSTATUS
smb1srv_tcon_table_init(struct smbXsrv_connection
*conn
);
406 NTSTATUS
smb1srv_tcon_create(struct smbXsrv_connection
*conn
,
408 struct smbXsrv_tcon
**_tcon
);
409 NTSTATUS
smb1srv_tcon_lookup(struct smbXsrv_connection
*conn
,
410 uint16_t tree_id
, NTTIME now
,
411 struct smbXsrv_tcon
**tcon
);
412 NTSTATUS
smb1srv_tcon_disconnect_all(struct smbXsrv_connection
*conn
);
413 NTSTATUS
smb2srv_tcon_table_init(struct smbXsrv_session
*session
);
414 NTSTATUS
smb2srv_tcon_create(struct smbXsrv_session
*session
,
416 struct smbXsrv_tcon
**_tcon
);
417 NTSTATUS
smb2srv_tcon_lookup(struct smbXsrv_session
*session
,
418 uint32_t tree_id
, NTTIME now
,
419 struct smbXsrv_tcon
**tcon
);
420 NTSTATUS
smb2srv_tcon_disconnect_all(struct smbXsrv_session
*session
);
422 NTSTATUS
smbXsrv_open_global_init(void);
423 NTSTATUS
smbXsrv_open_create(struct smbXsrv_connection
*conn
,
424 struct auth_session_info
*session_info
,
426 struct smbXsrv_open
**_open
);
427 uint32_t smbXsrv_open_hash(struct smbXsrv_open
*_open
);
428 NTSTATUS
smbXsrv_open_update(struct smbXsrv_open
*_open
);
429 NTSTATUS
smbXsrv_open_close(struct smbXsrv_open
*op
, NTTIME now
);
430 NTSTATUS
smb1srv_open_table_init(struct smbXsrv_connection
*conn
);
431 NTSTATUS
smb1srv_open_lookup(struct smbXsrv_connection
*conn
,
432 uint16_t fnum
, NTTIME now
,
433 struct smbXsrv_open
**_open
);
434 NTSTATUS
smb2srv_open_table_init(struct smbXsrv_connection
*conn
);
435 NTSTATUS
smb2srv_open_lookup(struct smbXsrv_connection
*conn
,
436 uint64_t persistent_id
,
437 uint64_t volatile_id
,
439 struct smbXsrv_open
**_open
);
441 struct smbd_smb2_request
{
442 struct smbd_smb2_request
*prev
, *next
;
444 TALLOC_CTX
*mem_pool
;
445 struct smbd_smb2_request
**parent
;
447 struct smbd_server_connection
*sconn
;
449 /* the session the request operates on, maybe NULL */
450 struct smbXsrv_session
*session
;
451 uint64_t last_session_id
;
453 /* the tcon the request operates on, maybe NULL */
454 struct smbXsrv_tcon
*tcon
;
459 struct tevent_timer
*async_te
;
461 bool compound_related
;
463 struct timeval request_time
;
465 /* fake smb1 request. */
466 struct smb_request
*smb1req
;
467 struct files_struct
*compat_chain_fsp
;
469 NTSTATUS next_status
;
472 * The sub request for async backend calls.
473 * This is used for SMB2 Cancel.
475 struct tevent_req
*subreq
;
478 /* the NBT header is not allocated */
484 * vector[2] fixed body
485 * vector[3] dynamic body
490 * vector[5] fixed body
491 * vector[6] dynamic body
496 struct iovec
*vector
;
500 /* the NBT header is not allocated */
506 * vector[2] fixed body
507 * vector[3] dynamic body
512 * vector[5] fixed body
513 * vector[6] dynamic body
518 struct iovec
*vector
;
523 struct smbd_server_connection
;
526 struct pending_message_list
;
527 struct pending_auth_data
;
530 struct user_struct
*next
, *prev
;
531 uint64_t vuid
; /* Tag for this entry. */
533 char *session_keystr
; /* used by utmp and pam session code.
537 struct auth_session_info
*session_info
;
539 struct smbXsrv_session0
*session
;
542 struct smbd_server_connection
{
544 const struct tsocket_address
*local_address
;
545 const struct tsocket_address
*remote_address
;
546 const char *remote_hostname
;
547 struct tevent_context
*ev_ctx
;
548 struct messaging_context
*msg_ctx
;
549 struct sys_notify_context
*sys_notify_ctx
;
550 struct notify_context
*notify_ctx
;
558 struct user_struct
*users
;
560 size_t num_connections
;
561 struct connection_struct
*connections
;
564 struct files_struct
*files
;
566 int real_max_open_files
;
567 struct fsp_singleton_cache fsp_fi_cache
;
569 struct pending_message_list
*deferred_open_queue
;
572 /* open directory handles. */
574 struct bitmap
*dptr_bmap
;
575 struct dptr_struct
*dirptrs
;
579 uint64_t num_requests
;
581 /* Current number of oplocks we have outstanding. */
583 int32_t exclusive_open
;
584 int32_t level_II_open
;
585 struct kernel_oplocks
*kernel_ops
;
589 struct fd_event
*fde
;
593 * fd for the fcntl lock mutexing access to our sock
598 * fd for the trusted pipe from
604 * fde for the trusted_fd
606 struct fd_event
*trusted_fde
;
609 * Reference count for the fcntl lock to
610 * allow recursive locks.
616 bool encrypted_passwords
;
618 struct auth4_context
*auth_context
;
621 * Size of the data we can receive. Set by us.
622 * Can be modified by the max xmit parameter.
628 uint16_t client_major
;
629 uint16_t client_minor
;
630 uint32_t client_cap_low
;
631 uint32_t client_cap_high
;
637 * Size of data we can send to client. Set
638 * by the client for all protocols above CORE.
639 * Set by us for CORE protocol.
642 uint64_t last_session_tag
;
644 struct smb_signing_state
*signing_state
;
646 struct notify_mid_map
*notify_mid_maps
;
649 /* dlink list we store pending lock records on. */
650 struct blocking_lock_record
*blocking_lock_queue
;
651 /* dlink list we move cancelled lock records onto. */
652 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
654 /* The event that makes us process our blocking lock queue */
655 struct timed_event
*brl_timeout
;
657 bool blocking_lock_unlock_state
;
658 bool blocking_lock_cancel_state
;
662 struct tevent_queue
*recv_queue
;
663 struct tevent_queue
*send_queue
;
664 struct tstream_context
*stream
;
667 /* The event that makes us process our blocking lock queue */
668 struct timed_event
*brl_timeout
;
669 bool blocking_lock_unlock_state
;
671 struct smbd_smb2_request
*requests
;
673 * seqnum_low is the lowest sequence number
678 * seqnum_range is the range of credits we have
679 * granted from the sequence windows starting
682 * This gets incremented when new credits are
683 * granted and gets decremented when the
684 * lowest sequence number is consumed
685 * (when seqnum_low gets incremented).
687 uint16_t seqnum_range
;
689 * credits_grantedThe number of credits we have currently granted
692 * This gets incremented when new credits are
693 * granted and gets decremented when any credit
696 * Note: the decrementing is different compared
699 uint16_t credits_granted
;
701 * The maximum number of credits we will ever
702 * grant to the client.
704 * Typically we will only grant 1/16th of
707 * This is the "server max credits" parameter.
709 uint16_t max_credits
;
711 * a bitmap of size max_credits
713 struct bitmap
*credits_bitmap
;
714 bool supports_multicredit
;
718 bool compound_related_in_progress
;
721 struct smbXsrv_connection
*conn
;
724 extern struct smbXsrv_connection
*global_smbXsrv_connection
;
726 void smbd_init_globals(void);