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/>.
23 extern struct aio_extra
*aio_list_head
;
24 extern struct tevent_signal
*aio_signal_event
;
25 extern int aio_pending_size
;
26 extern int outstanding_aio_calls
;
30 struct smbd_dmapi_context
;
31 extern struct smbd_dmapi_context
*dmapi_ctx
;
34 extern bool dfree_broken
;
36 /* how many write cache buffers have been allocated */
37 extern unsigned int allocated_write_caches
;
39 extern int real_max_open_files
;
40 extern struct bitmap
*file_bmap
;
41 extern files_struct
*Files
;
42 extern int files_used
;
43 /* A singleton cache to speed up searching by dev/inode. */
44 struct fsp_singleton_cache
{
48 extern struct fsp_singleton_cache fsp_fi_cache
;
49 extern unsigned long file_gen_counter
;
50 extern int first_file
;
52 extern const struct mangle_fns
*mangle_fns
;
54 extern unsigned char *chartest
;
55 extern TDB_CONTEXT
*tdb_mangled_cache
;
57 /* these tables are used to provide fast tests for characters */
58 extern unsigned char char_flags
[256];
60 this determines how many characters are used from the original filename
61 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
62 The largest possible value is 6.
64 extern unsigned mangle_prefix
;
65 extern unsigned char base_reverse
[256];
68 extern struct msg_state
*smbd_msg_state
;
70 extern bool logged_ioctl_message
;
75 extern time_t last_smb_conf_reload_time
;
76 extern time_t last_printer_reload_time
;
77 /****************************************************************************
78 structure to hold a linked list of queued messages.
80 ****************************************************************************/
81 struct pending_message_list
;
82 extern struct pending_message_list
*deferred_open_queue
;
83 extern uint32_t common_flags2
;
85 struct smb_srv_trans_enc_ctx
;
86 extern struct smb_srv_trans_enc_ctx
*partial_srv_trans_enc_ctx
;
87 extern struct smb_srv_trans_enc_ctx
*srv_trans_enc_ctx
;
93 /* A stack of security contexts. We include the current context as being
94 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
95 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
96 extern int sec_ctx_stack_ndx
;
97 extern bool become_uid_done
;
98 extern bool become_gid_done
;
100 extern connection_struct
*last_conn
;
101 extern uint16_t last_flags
;
103 extern uint32_t global_client_caps
;
105 extern uint16_t fnf_handle
;
108 connection_struct
*conn
;
111 /* A stack of current_user connection contexts. */
112 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
113 extern int conn_ctx_stack_ndx
;
115 struct vfs_init_function_entry
;
116 extern struct vfs_init_function_entry
*backends
;
117 extern char *sparse_buf
;
118 extern char *LastDir
;
120 /* Current number of oplocks we have outstanding. */
121 extern int32_t exclusive_oplocks_open
;
122 extern int32_t level_II_oplocks_open
;
123 extern struct kernel_oplocks
*koplocks
;
125 extern int am_parent
;
126 extern int server_fd
;
127 extern struct event_context
*smbd_event_ctx
;
128 extern struct messaging_context
*smbd_msg_ctx
;
129 extern struct memcache
*smbd_memcache_ctx
;
130 extern bool exit_firsttime
;
132 extern struct child_pid
*children
;
133 extern int num_children
;
135 struct tstream_context
;
136 struct smbd_smb2_request
;
137 struct smbd_smb2_session
;
138 struct smbd_smb2_tcon
;
140 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
);
142 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
143 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
145 NTSTATUS
smb2_signing_sign_pdu(DATA_BLOB session_key
,
146 struct iovec
*vector
,
148 NTSTATUS
smb2_signing_check_pdu(DATA_BLOB session_key
,
149 const struct iovec
*vector
,
152 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
157 struct smbd_lock_element
*ulocks
,
159 struct smbd_lock_element
*locks
,
162 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
166 struct smb_filename
*smb_fname
,
168 struct timespec write_time_ts
,
169 struct ea_list
*ea_list
,
173 unsigned int max_data_bytes
,
175 unsigned int *pdata_size
);
177 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
178 struct smb_request
*req
,
182 struct smb_filename
*smb_fname
,
183 char **ppdata
, int total_data
,
186 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
190 unsigned int max_data_bytes
,
194 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
195 struct dptr_struct
*dirptr
,
200 bool (*match_fn
)(TALLOC_CTX
*ctx
,
205 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
207 struct smb_filename
*smb_fname
,
211 struct smb_filename
**_smb_fname
,
215 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
216 connection_struct
*conn
,
217 struct dptr_struct
*dirptr
,
219 const char *path_mask
,
222 int requires_resume_key
,
232 bool *got_exact_match
,
233 int *_last_entry_off
,
234 struct ea_list
*name_list
);
236 NTSTATUS
smbd_check_open_rights(struct connection_struct
*conn
,
237 const struct smb_filename
*smb_fname
,
238 uint32_t access_mask
,
239 uint32_t *access_granted
);
241 void smbd_notify_cancel_by_smbreq(const struct smb_request
*smbreq
);
243 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
245 const char *location
);
246 #define smbd_server_connection_terminate(sconn, reason) \
247 smbd_server_connection_terminate_ex(sconn, reason, __location__)
249 struct server_id
sconn_server_id(const struct smbd_server_connection
*sconn
);
251 const char *smb2_opcode_name(uint16_t opcode
);
252 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
254 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
255 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
256 const uint8_t *inbuf
, size_t size
);
258 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
261 const char *location
);
262 #define smbd_smb2_request_error(req, status) \
263 smbd_smb2_request_error_ex(req, status, NULL, __location__)
264 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
266 DATA_BLOB body
, DATA_BLOB
*dyn
,
267 const char *location
);
268 #define smbd_smb2_request_done(req, body, dyn) \
269 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
271 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
272 uint64_t file_id_persistent
,
273 uint64_t file_id_volatile
,
274 uint8_t oplock_level
);
276 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
277 struct tevent_req
*subreq
);
279 NTSTATUS
smbd_smb2_request_check_session(struct smbd_smb2_request
*req
);
280 NTSTATUS
smbd_smb2_request_check_tcon(struct smbd_smb2_request
*req
);
282 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
283 void remove_smb2_chained_fsp(files_struct
*fsp
);
285 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
286 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
287 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
288 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
289 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
290 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
291 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
292 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
293 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
294 NTSTATUS
smb2_read_complete(struct tevent_req
*req
, ssize_t nread
, int err
);
295 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
296 NTSTATUS
smb2_write_complete(struct tevent_req
*req
, ssize_t nwritten
, int err
);
297 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
298 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
299 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
300 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
301 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
302 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
303 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
304 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
305 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
306 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
307 struct tevent_immediate
*im
,
310 /* SMB1 -> SMB2 glue. */
311 void send_break_message_smb2(files_struct
*fsp
, int level
);
312 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
313 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
314 struct smb_request
*req
,
319 enum brl_type lock_type
,
320 enum brl_flavour lock_flav
,
323 uint64_t blocking_smblctx
);
324 void process_blocking_lock_queue_smb2(
325 struct smbd_server_connection
*sconn
, struct timeval tv_curr
);
326 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
327 struct byte_range_lock
*br_lck
,
328 enum file_close_type close_type
);
329 /* From smbd/smb2_create.c */
330 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
331 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
332 struct timeval
*p_request_time
,
334 bool open_was_deferred_smb2(struct smbd_server_connection
*sconn
,
336 void remove_deferred_open_message_smb2(
337 struct smbd_server_connection
*sconn
, uint64_t mid
);
338 void schedule_deferred_open_message_smb2(
339 struct smbd_server_connection
*sconn
, uint64_t mid
);
340 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
341 struct timeval request_time
,
342 struct timeval timeout
,
347 struct smbd_smb2_request
{
348 struct smbd_smb2_request
*prev
, *next
;
350 TALLOC_CTX
*mem_pool
;
351 struct smbd_smb2_request
**parent
;
353 struct smbd_server_connection
*sconn
;
355 /* the session the request operates on, maybe NULL */
356 struct smbd_smb2_session
*session
;
358 /* the tcon the request operates on, maybe NULL */
359 struct smbd_smb2_tcon
*tcon
;
366 /* fake smb1 request. */
367 struct smb_request
*smb1req
;
368 struct files_struct
*compat_chain_fsp
;
370 NTSTATUS next_status
;
373 * The sub request for async backend calls.
374 * This is used for SMB2 Cancel.
376 struct tevent_req
*subreq
;
379 /* the NBT header is not allocated */
385 * vector[2] fixed body
386 * vector[3] dynamic body
391 * vector[5] fixed body
392 * vector[6] dynamic body
397 struct iovec
*vector
;
401 /* the NBT header is not allocated */
407 * vector[2] fixed body
408 * vector[3] dynamic body
413 * vector[5] fixed body
414 * vector[6] dynamic body
419 struct iovec
*vector
;
424 struct smbd_server_connection
;
426 struct smbd_smb2_session
{
427 struct smbd_smb2_session
*prev
, *next
;
428 struct smbd_server_connection
*sconn
;
431 struct auth_ntlmssp_state
*auth_ntlmssp_state
;
432 struct auth_serversupplied_info
*server_info
;
433 DATA_BLOB session_key
;
436 user_struct
*compat_vuser
;
439 /* an id tree used to allocate tids */
440 struct idr_context
*idtree
;
442 /* this is the limit of tid values for this connection */
445 struct smbd_smb2_tcon
*list
;
449 struct smbd_smb2_tcon
{
450 struct smbd_smb2_tcon
*prev
, *next
;
451 struct smbd_smb2_session
*session
;
454 connection_struct
*compat_conn
;
457 struct pending_auth_data
;
459 struct smbd_server_connection
{
460 const struct tsocket_address
*local_address
;
461 const struct tsocket_address
*remote_address
;
462 struct messaging_context
*msg_ctx
;
468 struct fd_event
*fde
;
472 * fd for the fcntl lock mutexing access to smbd_server_fd
477 * fd for the trusted pipe from
483 * fde for the trusted_fd
485 struct fd_event
*trusted_fde
;
488 * Reference count for the fcntl lock to
489 * allow recursive locks.
494 uint64_t num_requests
;
496 bool encrypted_passwords
;
498 struct auth_context
*auth_context
;
501 * Size of the data we can receive. Set by us.
502 * Can be modified by the max xmit parameter.
510 * Size of data we can send to client. Set
511 * by the client for all protocols above CORE.
512 * Set by us for CORE protocol.
515 uint16_t last_session_tag
;
517 /* users from session setup */
518 char *session_userlist
;
519 /* workgroup from session setup. */
520 char *session_workgroup
;
522 * this holds info on user ids that are already
523 * validated for this VC
525 user_struct
*validated_users
;
527 int num_validated_vuids
;
530 connection_struct
*Connections
;
531 /* number of open connections */
535 struct smb_signing_state
*signing_state
;
536 /* List to store partial SPNEGO auth fragments. */
537 struct pending_auth_data
*pd_list
;
539 struct notify_mid_map
*notify_mid_maps
;
542 struct bitmap
*dptr_bmap
;
543 struct dptr_struct
*dirptrs
;
547 /* dlink list we store pending lock records on. */
548 struct blocking_lock_record
*blocking_lock_queue
;
549 /* dlink list we move cancelled lock records onto. */
550 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
552 /* The event that makes us process our blocking lock queue */
553 struct timed_event
*brl_timeout
;
555 bool blocking_lock_unlock_state
;
556 bool blocking_lock_cancel_state
;
560 struct tevent_context
*event_ctx
;
561 struct tevent_queue
*recv_queue
;
562 struct tevent_queue
*send_queue
;
563 struct tstream_context
*stream
;
565 /* an id tree used to allocate vuids */
566 /* this holds info on session vuids that are already
567 * validated for this VC */
568 struct idr_context
*idtree
;
570 /* this is the limit of vuid values for this connection */
573 struct smbd_smb2_session
*list
;
576 /* The event that makes us process our blocking lock queue */
577 struct timed_event
*brl_timeout
;
578 bool blocking_lock_unlock_state
;
580 struct smbd_smb2_request
*requests
;
581 uint64_t credits_granted
;
585 extern struct smbd_server_connection
*smbd_server_conn
;
587 void smbd_init_globals(void);