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"
25 extern struct aio_extra
*aio_list_head
;
26 extern struct tevent_signal
*aio_signal_event
;
27 extern int aio_pending_size
;
28 extern int outstanding_aio_calls
;
32 struct smbd_dmapi_context
;
33 extern struct smbd_dmapi_context
*dmapi_ctx
;
36 extern bool dfree_broken
;
38 /* how many write cache buffers have been allocated */
39 extern unsigned int allocated_write_caches
;
41 /* A singleton cache to speed up searching by dev/inode. */
42 struct fsp_singleton_cache
{
47 extern const struct mangle_fns
*mangle_fns
;
49 extern unsigned char *chartest
;
51 extern struct tdb_context
*tdb_mangled_cache
;
54 this determines how many characters are used from the original filename
55 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
56 The largest possible value is 6.
58 extern unsigned mangle_prefix
;
61 extern struct msg_state
*smbd_msg_state
;
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 /* Current number of oplocks we have outstanding. */
112 extern int32_t exclusive_oplocks_open
;
113 extern int32_t level_II_oplocks_open
;
114 extern struct kernel_oplocks
*koplocks
;
116 struct smbd_parent_context
;
117 extern struct smbd_parent_context
*am_parent
;
118 extern struct memcache
*smbd_memcache_ctx
;
119 extern bool exit_firsttime
;
121 struct tstream_context
;
122 struct smbd_smb2_request
;
123 struct smbd_smb2_session
;
124 struct smbd_smb2_tcon
;
126 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
);
128 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
129 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
131 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
136 struct smbd_lock_element
*ulocks
,
138 struct smbd_lock_element
*locks
,
141 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
145 struct smb_filename
*smb_fname
,
147 struct timespec write_time_ts
,
148 struct ea_list
*ea_list
,
152 unsigned int max_data_bytes
,
154 unsigned int *pdata_size
);
156 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
157 struct smb_request
*req
,
161 struct smb_filename
*smb_fname
,
162 char **ppdata
, int total_data
,
165 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
169 unsigned int max_data_bytes
,
173 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
174 struct dptr_struct
*dirptr
,
179 bool (*match_fn
)(TALLOC_CTX
*ctx
,
184 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
186 struct smb_filename
*smb_fname
,
190 struct smb_filename
**_smb_fname
,
194 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
195 connection_struct
*conn
,
196 struct dptr_struct
*dirptr
,
198 const char *path_mask
,
201 int requires_resume_key
,
211 bool *got_exact_match
,
212 int *_last_entry_off
,
213 struct ea_list
*name_list
);
215 NTSTATUS
smbd_calculate_access_mask(connection_struct
*conn
,
216 const struct smb_filename
*smb_fname
,
217 uint32_t access_mask
,
218 uint32_t *access_mask_out
);
220 void smbd_notify_cancel_by_smbreq(const struct smb_request
*smbreq
);
222 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
224 const char *location
);
225 #define smbd_server_connection_terminate(sconn, reason) \
226 smbd_server_connection_terminate_ex(sconn, reason, __location__)
228 const char *smb2_opcode_name(uint16_t opcode
);
229 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
231 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
232 void reply_smb20ff(struct smb_request
*req
, uint16_t choice
);
233 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
234 const uint8_t *inbuf
, size_t size
);
236 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
239 const char *location
);
240 #define smbd_smb2_request_error(req, status) \
241 smbd_smb2_request_error_ex(req, status, NULL, __location__)
242 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
244 DATA_BLOB body
, DATA_BLOB
*dyn
,
245 const char *location
);
246 #define smbd_smb2_request_done(req, body, dyn) \
247 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
249 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
250 uint64_t file_id_persistent
,
251 uint64_t file_id_volatile
,
252 uint8_t oplock_level
);
254 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
255 struct tevent_req
*subreq
,
256 uint32_t defer_time
);
258 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
259 void remove_smb2_chained_fsp(files_struct
*fsp
);
261 NTSTATUS
smbd_smb2_request_verify_sizes(struct smbd_smb2_request
*req
,
262 size_t expected_body_size
);
264 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
265 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
266 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
267 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
268 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
269 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
270 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
271 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
272 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
273 NTSTATUS
smb2_read_complete(struct tevent_req
*req
, ssize_t nread
, int err
);
274 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
275 NTSTATUS
smb2_write_complete(struct tevent_req
*req
, ssize_t nwritten
, int err
);
276 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
277 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
278 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
279 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
280 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
281 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
282 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
283 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
284 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
285 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
286 struct tevent_immediate
*im
,
289 /* SMB1 -> SMB2 glue. */
290 void send_break_message_smb2(files_struct
*fsp
, int level
);
291 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
292 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
293 struct smb_request
*req
,
298 enum brl_type lock_type
,
299 enum brl_flavour lock_flav
,
302 uint64_t blocking_smblctx
);
303 void process_blocking_lock_queue_smb2(
304 struct smbd_server_connection
*sconn
, struct timeval tv_curr
);
305 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
306 struct byte_range_lock
*br_lck
,
307 enum file_close_type close_type
);
308 /* From smbd/smb2_create.c */
309 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
310 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
311 struct timeval
*p_request_time
,
313 bool open_was_deferred_smb2(struct smbd_server_connection
*sconn
,
315 void remove_deferred_open_message_smb2(
316 struct smbd_server_connection
*sconn
, uint64_t mid
);
317 void schedule_deferred_open_message_smb2(
318 struct smbd_server_connection
*sconn
, uint64_t mid
);
319 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
320 struct timeval request_time
,
321 struct timeval timeout
,
326 struct smbd_smb2_request
{
327 struct smbd_smb2_request
*prev
, *next
;
329 TALLOC_CTX
*mem_pool
;
330 struct smbd_smb2_request
**parent
;
332 struct smbd_server_connection
*sconn
;
334 /* the session the request operates on, maybe NULL */
335 struct smbd_smb2_session
*session
;
336 uint64_t last_session_id
;
338 /* the tcon the request operates on, maybe NULL */
339 struct smbd_smb2_tcon
*tcon
;
344 struct tevent_timer
*async_te
;
346 bool compound_related
;
348 /* fake smb1 request. */
349 struct smb_request
*smb1req
;
350 struct files_struct
*compat_chain_fsp
;
352 NTSTATUS next_status
;
355 * The sub request for async backend calls.
356 * This is used for SMB2 Cancel.
358 struct tevent_req
*subreq
;
361 /* the NBT header is not allocated */
367 * vector[2] fixed body
368 * vector[3] dynamic body
373 * vector[5] fixed body
374 * vector[6] dynamic body
379 struct iovec
*vector
;
383 /* the NBT header is not allocated */
389 * vector[2] fixed body
390 * vector[3] dynamic body
395 * vector[5] fixed body
396 * vector[6] dynamic body
401 struct iovec
*vector
;
406 struct smbd_server_connection
;
408 struct smbd_smb2_session
{
409 struct smbd_smb2_session
*prev
, *next
;
410 struct smbd_server_connection
*sconn
;
413 struct gensec_security
*gensec_security
;
414 struct auth_session_info
*session_info
;
415 DATA_BLOB session_key
;
418 user_struct
*compat_vuser
;
421 /* an id tree used to allocate tids */
422 struct idr_context
*idtree
;
424 /* this is the limit of tid values for this connection */
427 struct smbd_smb2_tcon
*list
;
431 struct smbd_smb2_tcon
{
432 struct smbd_smb2_tcon
*prev
, *next
;
433 struct smbd_smb2_session
*session
;
436 connection_struct
*compat_conn
;
439 struct pending_message_list
;
440 struct pending_auth_data
;
442 struct smbd_server_connection
{
444 const struct tsocket_address
*local_address
;
445 const struct tsocket_address
*remote_address
;
446 const char *remote_hostname
;
447 struct tevent_context
*ev_ctx
;
448 struct messaging_context
*msg_ctx
;
456 * Cache for calling poll(2) to avoid allocations in our
461 struct files_struct
*files
;
462 struct bitmap
*file_bmap
;
463 int real_max_open_files
;
465 struct fsp_singleton_cache fsp_fi_cache
;
466 unsigned long file_gen_counter
;
469 /* Try GENSEC hook */
470 bool use_gensec_hook
;
472 /* number of open connections (tcons) */
475 struct pending_message_list
*deferred_open_queue
;
478 /* open directory handles. */
480 struct bitmap
*dptr_bmap
;
481 struct dptr_struct
*dirptrs
;
485 uint64_t num_requests
;
488 struct fd_event
*fde
;
492 * fd for the fcntl lock mutexing access to our sock
497 * fd for the trusted pipe from
503 * fde for the trusted_fd
505 struct fd_event
*trusted_fde
;
508 * Reference count for the fcntl lock to
509 * allow recursive locks.
515 bool encrypted_passwords
;
517 struct auth_context
*auth_context
;
520 * Size of the data we can receive. Set by us.
521 * Can be modified by the max xmit parameter.
527 uint16_t client_major
;
528 uint16_t client_minor
;
529 uint32_t client_cap_low
;
530 uint32_t client_cap_high
;
536 * Size of data we can send to client. Set
537 * by the client for all protocols above CORE.
538 * Set by us for CORE protocol.
541 uint16_t last_session_tag
;
543 /* users from session setup */
544 char *session_userlist
;
545 /* workgroup from session setup. */
546 char *session_workgroup
;
548 * this holds info on user ids that are already
549 * validated for this VC
551 user_struct
*validated_users
;
553 int num_validated_vuids
;
556 connection_struct
*Connections
;
557 /* number of open connections */
560 struct smb_signing_state
*signing_state
;
562 struct notify_mid_map
*notify_mid_maps
;
565 /* dlink list we store pending lock records on. */
566 struct blocking_lock_record
*blocking_lock_queue
;
567 /* dlink list we move cancelled lock records onto. */
568 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
570 /* The event that makes us process our blocking lock queue */
571 struct timed_event
*brl_timeout
;
573 bool blocking_lock_unlock_state
;
574 bool blocking_lock_cancel_state
;
578 struct tevent_queue
*recv_queue
;
579 struct tevent_queue
*send_queue
;
580 struct tstream_context
*stream
;
583 /* an id tree used to allocate vuids */
584 /* this holds info on session vuids that are already
585 * validated for this VC */
586 struct idr_context
*idtree
;
588 /* this is the limit of vuid values for this connection */
591 struct smbd_smb2_session
*list
;
594 /* The event that makes us process our blocking lock queue */
595 struct timed_event
*brl_timeout
;
596 bool blocking_lock_unlock_state
;
598 struct smbd_smb2_request
*requests
;
600 uint32_t credits_granted
;
601 uint32_t max_credits
;
605 struct bitmap
*credits_bitmap
;
606 bool compound_related_in_progress
;
610 extern struct smbd_server_connection
*smbd_server_conn
;
612 void smbd_init_globals(void);