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"
24 extern int aio_pending_size
;
25 extern int outstanding_aio_calls
;
28 struct smbd_dmapi_context
;
29 extern struct smbd_dmapi_context
*dmapi_ctx
;
32 extern bool dfree_broken
;
34 /* how many write cache buffers have been allocated */
35 extern unsigned int allocated_write_caches
;
37 /* A singleton cache to speed up searching by dev/inode. */
38 struct fsp_singleton_cache
{
43 extern const struct mangle_fns
*mangle_fns
;
45 extern unsigned char *chartest
;
47 extern struct tdb_context
*tdb_mangled_cache
;
50 this determines how many characters are used from the original filename
51 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
52 The largest possible value is 6.
54 extern unsigned mangle_prefix
;
58 extern bool logged_ioctl_message
;
62 extern time_t last_smb_conf_reload_time
;
63 extern time_t last_printer_reload_time
;
64 extern pid_t background_lpq_updater_pid
;
66 /****************************************************************************
67 structure to hold a linked list of queued messages.
69 ****************************************************************************/
70 extern uint32_t common_flags2
;
72 extern struct smb_trans_enc_state
*partial_srv_trans_enc_ctx
;
73 extern struct smb_trans_enc_state
*srv_trans_enc_ctx
;
76 struct security_unix_token ut
;
77 struct security_token
*token
;
79 /* A stack of security contexts. We include the current context as being
80 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
81 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
82 extern int sec_ctx_stack_ndx
;
83 extern bool become_uid_done
;
84 extern bool become_gid_done
;
86 extern connection_struct
*last_conn
;
87 extern uint16_t last_flags
;
89 extern uint32_t global_client_caps
;
91 extern uint16_t fnf_handle
;
94 connection_struct
*conn
;
97 /* A stack of current_user connection contexts. */
98 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
99 extern int conn_ctx_stack_ndx
;
101 struct vfs_init_function_entry
;
102 extern struct vfs_init_function_entry
*backends
;
103 extern char *sparse_buf
;
104 extern char *LastDir
;
106 struct smbd_parent_context
;
107 extern struct smbd_parent_context
*am_parent
;
108 extern struct memcache
*smbd_memcache_ctx
;
109 extern bool exit_firsttime
;
111 struct tstream_context
;
112 struct smbd_smb2_request
;
114 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
);
116 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
117 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
119 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
124 struct smbd_lock_element
*ulocks
,
126 struct smbd_lock_element
*locks
,
129 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
133 struct smb_filename
*smb_fname
,
135 struct timespec write_time_ts
,
136 struct ea_list
*ea_list
,
140 unsigned int max_data_bytes
,
142 unsigned int *pdata_size
);
144 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
145 struct smb_request
*req
,
149 struct smb_filename
*smb_fname
,
150 char **ppdata
, int total_data
,
153 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
157 unsigned int max_data_bytes
,
161 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
162 struct dptr_struct
*dirptr
,
167 bool (*match_fn
)(TALLOC_CTX
*ctx
,
172 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
174 struct smb_filename
*smb_fname
,
178 struct smb_filename
**_smb_fname
,
182 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
183 connection_struct
*conn
,
184 struct dptr_struct
*dirptr
,
186 const char *path_mask
,
189 int requires_resume_key
,
199 bool *got_exact_match
,
200 int *_last_entry_off
,
201 struct ea_list
*name_list
);
203 NTSTATUS
smbd_calculate_access_mask(connection_struct
*conn
,
204 const struct smb_filename
*smb_fname
,
205 uint32_t access_mask
,
206 uint32_t *access_mask_out
);
208 void smbd_notify_cancel_by_smbreq(const struct smb_request
*smbreq
);
210 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
212 const char *location
);
213 #define smbd_server_connection_terminate(sconn, reason) \
214 smbd_server_connection_terminate_ex(sconn, reason, __location__)
216 const char *smb2_opcode_name(uint16_t opcode
);
217 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
219 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
220 void reply_smb20ff(struct smb_request
*req
, uint16_t choice
);
221 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
222 const uint8_t *inbuf
, size_t size
);
224 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
227 const char *location
);
228 #define smbd_smb2_request_error(req, status) \
229 smbd_smb2_request_error_ex(req, status, NULL, __location__)
230 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
232 DATA_BLOB body
, DATA_BLOB
*dyn
,
233 const char *location
);
234 #define smbd_smb2_request_done(req, body, dyn) \
235 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
237 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
238 uint64_t file_id_persistent
,
239 uint64_t file_id_volatile
,
240 uint8_t oplock_level
);
242 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
243 struct tevent_req
*subreq
,
244 uint32_t defer_time
);
246 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
247 void remove_smb2_chained_fsp(files_struct
*fsp
);
249 NTSTATUS
smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request
*req
,
250 uint32_t data_length
);
252 NTSTATUS
smbd_smb2_request_verify_sizes(struct smbd_smb2_request
*req
,
253 size_t expected_body_size
);
255 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
256 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
257 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
258 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
259 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
260 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
261 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
262 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
263 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
264 NTSTATUS
smb2_read_complete(struct tevent_req
*req
, ssize_t nread
, int err
);
265 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
266 NTSTATUS
smb2_write_complete(struct tevent_req
*req
, ssize_t nwritten
, int err
);
267 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
268 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
269 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
270 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
271 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
272 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
273 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
274 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
275 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
276 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
277 struct tevent_immediate
*im
,
280 /* SMB1 -> SMB2 glue. */
281 void send_break_message_smb2(files_struct
*fsp
, int level
);
282 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
283 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
284 struct smb_request
*req
,
289 enum brl_type lock_type
,
290 enum brl_flavour lock_flav
,
293 uint64_t blocking_smblctx
);
294 void process_blocking_lock_queue_smb2(
295 struct smbd_server_connection
*sconn
, struct timeval tv_curr
);
296 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
297 struct byte_range_lock
*br_lck
,
298 enum file_close_type close_type
);
299 /* From smbd/smb2_create.c */
300 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
301 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
302 struct timeval
*p_request_time
,
304 bool open_was_deferred_smb2(struct smbd_server_connection
*sconn
,
306 void remove_deferred_open_message_smb2(
307 struct smbd_server_connection
*sconn
, uint64_t mid
);
308 bool schedule_deferred_open_message_smb2(
309 struct smbd_server_connection
*sconn
, uint64_t mid
);
310 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
311 struct timeval request_time
,
312 struct timeval timeout
,
317 struct smbXsrv_connection
{
318 struct smbd_server_connection
*sconn
;
320 const struct tsocket_address
*local_address
;
321 const struct tsocket_address
*remote_address
;
322 const char *remote_hostname
;
324 struct tevent_context
*ev_ctx
;
325 struct messaging_context
*msg_ctx
;
327 enum protocol_types protocol
;
331 uint32_t capabilities
;
333 uint16_t security_mode
;
334 uint16_t num_dialects
;
338 uint32_t capabilities
;
340 uint16_t security_mode
;
348 struct msg_state
*msg_state
;
350 uint64_t smbd_idle_profstamp
;
353 * this session_table is used for SMB1 and SMB2,
355 struct smbXsrv_session_table
*session_table
;
357 * this tcon_table is only used for SMB1.
359 struct smbXsrv_tcon_table
*tcon_table
;
361 * this open_table is used for SMB1 and SMB2,
362 * because we have a global sconn->real_max_open_files
365 struct smbXsrv_open_table
*open_table
;
368 NTSTATUS
smbXsrv_version_global_init(const struct server_id
*server_id
);
369 uint32_t smbXsrv_version_global_current(void);
371 NTSTATUS
smbXsrv_connection_init_tables(struct smbXsrv_connection
*conn
,
372 enum protocol_types protocol
);
374 NTSTATUS
smbXsrv_session_global_init(void);
375 NTSTATUS
smbXsrv_session_create(struct smbXsrv_connection
*conn
,
377 struct smbXsrv_session
**_session
);
378 NTSTATUS
smbXsrv_session_update(struct smbXsrv_session
*session
);
379 NTSTATUS
smbXsrv_session_logoff(struct smbXsrv_session
*session
);
380 NTSTATUS
smbXsrv_session_logoff_all(struct smbXsrv_connection
*conn
);
381 NTSTATUS
smb1srv_session_table_init(struct smbXsrv_connection
*conn
);
382 NTSTATUS
smb1srv_session_lookup(struct smbXsrv_connection
*conn
,
383 uint16_t vuid
, NTTIME now
,
384 struct smbXsrv_session
**session
);
385 NTSTATUS
smb2srv_session_table_init(struct smbXsrv_connection
*conn
);
386 NTSTATUS
smb2srv_session_lookup(struct smbXsrv_connection
*conn
,
387 uint64_t session_id
, NTTIME now
,
388 struct smbXsrv_session
**session
);
389 struct tevent_req
*smb2srv_session_close_previous_send(TALLOC_CTX
*mem_ctx
,
390 struct tevent_context
*ev
,
391 struct smbXsrv_connection
*conn
,
392 struct auth_session_info
*session_info
,
393 uint64_t previous_session_id
,
394 uint64_t current_session_id
);
395 NTSTATUS
smb2srv_session_close_previous_recv(struct tevent_req
*req
);
397 NTSTATUS
smbXsrv_tcon_global_init(void);
398 NTSTATUS
smbXsrv_tcon_update(struct smbXsrv_tcon
*tcon
);
399 NTSTATUS
smbXsrv_tcon_disconnect(struct smbXsrv_tcon
*tcon
, uint64_t vuid
);
400 NTSTATUS
smb1srv_tcon_table_init(struct smbXsrv_connection
*conn
);
401 NTSTATUS
smb1srv_tcon_create(struct smbXsrv_connection
*conn
,
403 struct smbXsrv_tcon
**_tcon
);
404 NTSTATUS
smb1srv_tcon_lookup(struct smbXsrv_connection
*conn
,
405 uint16_t tree_id
, NTTIME now
,
406 struct smbXsrv_tcon
**tcon
);
407 NTSTATUS
smb1srv_tcon_disconnect_all(struct smbXsrv_connection
*conn
);
408 NTSTATUS
smb2srv_tcon_table_init(struct smbXsrv_session
*session
);
409 NTSTATUS
smb2srv_tcon_create(struct smbXsrv_session
*session
,
411 struct smbXsrv_tcon
**_tcon
);
412 NTSTATUS
smb2srv_tcon_lookup(struct smbXsrv_session
*session
,
413 uint32_t tree_id
, NTTIME now
,
414 struct smbXsrv_tcon
**tcon
);
415 NTSTATUS
smb2srv_tcon_disconnect_all(struct smbXsrv_session
*session
);
417 NTSTATUS
smbXsrv_open_global_init(void);
418 NTSTATUS
smbXsrv_open_create(struct smbXsrv_connection
*conn
,
419 struct auth_session_info
*session_info
,
421 struct smbXsrv_open
**_open
);
422 uint32_t smbXsrv_open_hash(struct smbXsrv_open
*_open
);
423 NTSTATUS
smbXsrv_open_update(struct smbXsrv_open
*_open
);
424 NTSTATUS
smbXsrv_open_close(struct smbXsrv_open
*op
, NTTIME now
);
425 NTSTATUS
smb1srv_open_table_init(struct smbXsrv_connection
*conn
);
426 NTSTATUS
smb1srv_open_lookup(struct smbXsrv_connection
*conn
,
427 uint16_t fnum
, NTTIME now
,
428 struct smbXsrv_open
**_open
);
429 NTSTATUS
smb2srv_open_table_init(struct smbXsrv_connection
*conn
);
430 NTSTATUS
smb2srv_open_lookup(struct smbXsrv_connection
*conn
,
431 uint64_t persistent_id
,
432 uint64_t volatile_id
,
434 struct smbXsrv_open
**_open
);
436 struct smbd_smb2_request
{
437 struct smbd_smb2_request
*prev
, *next
;
439 TALLOC_CTX
*mem_pool
;
440 struct smbd_smb2_request
**parent
;
442 struct smbd_server_connection
*sconn
;
444 /* the session the request operates on, maybe NULL */
445 struct smbXsrv_session
*session
;
446 uint64_t last_session_id
;
448 /* the tcon the request operates on, maybe NULL */
449 struct smbXsrv_tcon
*tcon
;
454 struct tevent_timer
*async_te
;
456 bool compound_related
;
458 struct timeval request_time
;
460 /* fake smb1 request. */
461 struct smb_request
*smb1req
;
462 struct files_struct
*compat_chain_fsp
;
464 NTSTATUS next_status
;
467 * The sub request for async backend calls.
468 * This is used for SMB2 Cancel.
470 struct tevent_req
*subreq
;
473 /* the NBT header is not allocated */
479 * vector[2] fixed body
480 * vector[3] dynamic body
485 * vector[5] fixed body
486 * vector[6] dynamic body
491 struct iovec
*vector
;
495 /* the NBT header is not allocated */
501 * vector[2] fixed body
502 * vector[3] dynamic body
507 * vector[5] fixed body
508 * vector[6] dynamic body
513 struct iovec
*vector
;
518 struct smbd_server_connection
;
521 struct pending_message_list
;
522 struct pending_auth_data
;
525 struct user_struct
*next
, *prev
;
526 uint64_t vuid
; /* Tag for this entry. */
528 char *session_keystr
; /* used by utmp and pam session code.
532 struct auth_session_info
*session_info
;
534 struct smbXsrv_session
*session
;
537 struct smbd_server_connection
{
539 const struct tsocket_address
*local_address
;
540 const struct tsocket_address
*remote_address
;
541 const char *remote_hostname
;
542 struct tevent_context
*ev_ctx
;
543 struct messaging_context
*msg_ctx
;
544 struct sys_notify_context
*sys_notify_ctx
;
545 struct notify_context
*notify_ctx
;
553 struct user_struct
*users
;
555 size_t num_connections
;
556 struct connection_struct
*connections
;
559 struct files_struct
*files
;
561 int real_max_open_files
;
562 struct fsp_singleton_cache fsp_fi_cache
;
564 struct pending_message_list
*deferred_open_queue
;
567 /* open directory handles. */
569 struct bitmap
*dptr_bmap
;
570 struct dptr_struct
*dirptrs
;
574 uint64_t num_requests
;
576 /* Current number of oplocks we have outstanding. */
578 int32_t exclusive_open
;
579 int32_t level_II_open
;
580 struct kernel_oplocks
*kernel_ops
;
584 struct fd_event
*fde
;
588 * fd for the fcntl lock mutexing access to our sock
593 * fd for the trusted pipe from
599 * fde for the trusted_fd
601 struct fd_event
*trusted_fde
;
604 * Reference count for the fcntl lock to
605 * allow recursive locks.
611 bool encrypted_passwords
;
613 struct auth4_context
*auth_context
;
616 * Size of the data we can receive. Set by us.
617 * Can be modified by the max xmit parameter.
623 uint16_t client_major
;
624 uint16_t client_minor
;
625 uint32_t client_cap_low
;
626 uint32_t client_cap_high
;
632 * Size of data we can send to client. Set
633 * by the client for all protocols above CORE.
634 * Set by us for CORE protocol.
637 uint64_t last_session_tag
;
639 struct smb_signing_state
*signing_state
;
641 struct notify_mid_map
*notify_mid_maps
;
644 /* dlink list we store pending lock records on. */
645 struct blocking_lock_record
*blocking_lock_queue
;
646 /* dlink list we move cancelled lock records onto. */
647 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
649 /* The event that makes us process our blocking lock queue */
650 struct timed_event
*brl_timeout
;
652 bool blocking_lock_unlock_state
;
653 bool blocking_lock_cancel_state
;
657 struct tevent_queue
*recv_queue
;
658 struct tevent_queue
*send_queue
;
659 struct tstream_context
*stream
;
662 /* The event that makes us process our blocking lock queue */
663 struct timed_event
*brl_timeout
;
664 bool blocking_lock_unlock_state
;
666 struct smbd_smb2_request
*requests
;
668 * seqnum_low is the lowest sequence number
673 * seqnum_range is the range of credits we have
674 * granted from the sequence windows starting
677 * This gets incremented when new credits are
678 * granted and gets decremented when the
679 * lowest sequence number is consumed
680 * (when seqnum_low gets incremented).
682 uint16_t seqnum_range
;
684 * credits_grantedThe number of credits we have currently granted
687 * This gets incremented when new credits are
688 * granted and gets decremented when any credit
691 * Note: the decrementing is different compared
694 uint16_t credits_granted
;
696 * The maximum number of credits we will ever
697 * grant to the client.
699 * Typically we will only grant 1/16th of
702 * This is the "server max credits" parameter.
704 uint16_t max_credits
;
706 * a bitmap of size max_credits
708 struct bitmap
*credits_bitmap
;
709 bool supports_multicredit
;
713 bool compound_related_in_progress
;
716 struct smbXsrv_connection
*conn
;
719 extern struct smbXsrv_connection
*global_smbXsrv_connection
;
721 void smbd_init_globals(void);