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 /* A singleton cache to speed up searching by dev/inode. */
40 struct fsp_singleton_cache
{
45 extern const struct mangle_fns
*mangle_fns
;
47 extern unsigned char *chartest
;
48 extern TDB_CONTEXT
*tdb_mangled_cache
;
51 this determines how many characters are used from the original filename
52 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
53 The largest possible value is 6.
55 extern unsigned mangle_prefix
;
58 extern struct msg_state
*smbd_msg_state
;
60 extern bool logged_ioctl_message
;
64 extern time_t last_smb_conf_reload_time
;
65 extern time_t last_printer_reload_time
;
66 /****************************************************************************
67 structure to hold a linked list of queued messages.
69 ****************************************************************************/
70 struct pending_message_list
;
71 extern struct pending_message_list
*deferred_open_queue
;
72 extern uint32_t common_flags2
;
74 struct smb_srv_trans_enc_ctx
;
75 extern struct smb_srv_trans_enc_ctx
*partial_srv_trans_enc_ctx
;
76 extern struct smb_srv_trans_enc_ctx
*srv_trans_enc_ctx
;
80 struct security_token
*token
;
82 /* A stack of security contexts. We include the current context as being
83 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
84 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
85 extern int sec_ctx_stack_ndx
;
86 extern bool become_uid_done
;
87 extern bool become_gid_done
;
89 extern connection_struct
*last_conn
;
90 extern uint16_t last_flags
;
92 extern uint32_t global_client_caps
;
94 extern uint16_t fnf_handle
;
97 connection_struct
*conn
;
100 /* A stack of current_user connection contexts. */
101 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
102 extern int conn_ctx_stack_ndx
;
104 struct vfs_init_function_entry
;
105 extern struct vfs_init_function_entry
*backends
;
106 extern char *sparse_buf
;
107 extern char *LastDir
;
109 /* Current number of oplocks we have outstanding. */
110 extern int32_t exclusive_oplocks_open
;
111 extern int32_t level_II_oplocks_open
;
112 extern struct kernel_oplocks
*koplocks
;
114 extern int am_parent
;
115 extern struct event_context
*smbd_event_ctx
;
116 extern struct messaging_context
*smbd_msg_ctx
;
117 extern struct memcache
*smbd_memcache_ctx
;
118 extern bool exit_firsttime
;
120 extern struct child_pid
*children
;
121 extern int num_children
;
123 struct tstream_context
;
124 struct smbd_smb2_request
;
125 struct smbd_smb2_session
;
126 struct smbd_smb2_tcon
;
128 DATA_BLOB
negprot_spnego(TALLOC_CTX
*ctx
, struct smbd_server_connection
*sconn
);
130 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
131 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
133 NTSTATUS
smb2_signing_sign_pdu(DATA_BLOB session_key
,
134 struct iovec
*vector
,
136 NTSTATUS
smb2_signing_check_pdu(DATA_BLOB session_key
,
137 const struct iovec
*vector
,
140 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
145 struct smbd_lock_element
*ulocks
,
147 struct smbd_lock_element
*locks
,
150 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
154 struct smb_filename
*smb_fname
,
156 struct timespec write_time_ts
,
157 struct ea_list
*ea_list
,
161 unsigned int max_data_bytes
,
163 unsigned int *pdata_size
);
165 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
166 struct smb_request
*req
,
170 struct smb_filename
*smb_fname
,
171 char **ppdata
, int total_data
,
174 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
178 unsigned int max_data_bytes
,
182 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
183 struct dptr_struct
*dirptr
,
188 bool (*match_fn
)(TALLOC_CTX
*ctx
,
193 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
195 struct smb_filename
*smb_fname
,
199 struct smb_filename
**_smb_fname
,
203 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
204 connection_struct
*conn
,
205 struct dptr_struct
*dirptr
,
207 const char *path_mask
,
210 int requires_resume_key
,
220 bool *got_exact_match
,
221 int *_last_entry_off
,
222 struct ea_list
*name_list
);
224 NTSTATUS
smbd_check_open_rights(struct connection_struct
*conn
,
225 const struct smb_filename
*smb_fname
,
226 uint32_t access_mask
,
227 uint32_t *access_granted
);
229 void smbd_notify_cancel_by_smbreq(const struct smb_request
*smbreq
);
231 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
233 const char *location
);
234 #define smbd_server_connection_terminate(sconn, reason) \
235 smbd_server_connection_terminate_ex(sconn, reason, __location__)
237 struct server_id
sconn_server_id(const struct smbd_server_connection
*sconn
);
239 const char *smb2_opcode_name(uint16_t opcode
);
240 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
242 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
243 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
244 const uint8_t *inbuf
, size_t size
);
246 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
249 const char *location
);
250 #define smbd_smb2_request_error(req, status) \
251 smbd_smb2_request_error_ex(req, status, NULL, __location__)
252 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
254 DATA_BLOB body
, DATA_BLOB
*dyn
,
255 const char *location
);
256 #define smbd_smb2_request_done(req, body, dyn) \
257 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
259 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
260 uint64_t file_id_persistent
,
261 uint64_t file_id_volatile
,
262 uint8_t oplock_level
);
264 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
265 struct tevent_req
*subreq
);
267 NTSTATUS
smbd_smb2_request_check_session(struct smbd_smb2_request
*req
);
268 NTSTATUS
smbd_smb2_request_check_tcon(struct smbd_smb2_request
*req
);
270 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
271 void remove_smb2_chained_fsp(files_struct
*fsp
);
273 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
274 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
275 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
276 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
277 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
278 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
279 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
280 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
281 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
282 NTSTATUS
smb2_read_complete(struct tevent_req
*req
, ssize_t nread
, int err
);
283 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
284 NTSTATUS
smb2_write_complete(struct tevent_req
*req
, ssize_t nwritten
, int err
);
285 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
286 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
287 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
288 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
289 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
290 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
291 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
292 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
293 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
294 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
295 struct tevent_immediate
*im
,
298 /* SMB1 -> SMB2 glue. */
299 void send_break_message_smb2(files_struct
*fsp
, int level
);
300 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
301 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
302 struct smb_request
*req
,
307 enum brl_type lock_type
,
308 enum brl_flavour lock_flav
,
311 uint64_t blocking_smblctx
);
312 void process_blocking_lock_queue_smb2(
313 struct smbd_server_connection
*sconn
, struct timeval tv_curr
);
314 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
315 struct byte_range_lock
*br_lck
,
316 enum file_close_type close_type
);
317 /* From smbd/smb2_create.c */
318 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
319 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
320 struct timeval
*p_request_time
,
322 bool open_was_deferred_smb2(struct smbd_server_connection
*sconn
,
324 void remove_deferred_open_message_smb2(
325 struct smbd_server_connection
*sconn
, uint64_t mid
);
326 void schedule_deferred_open_message_smb2(
327 struct smbd_server_connection
*sconn
, uint64_t mid
);
328 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
329 struct timeval request_time
,
330 struct timeval timeout
,
335 struct smbd_smb2_request
{
336 struct smbd_smb2_request
*prev
, *next
;
338 TALLOC_CTX
*mem_pool
;
339 struct smbd_smb2_request
**parent
;
341 struct smbd_server_connection
*sconn
;
343 /* the session the request operates on, maybe NULL */
344 struct smbd_smb2_session
*session
;
346 /* the tcon the request operates on, maybe NULL */
347 struct smbd_smb2_tcon
*tcon
;
354 /* fake smb1 request. */
355 struct smb_request
*smb1req
;
356 struct files_struct
*compat_chain_fsp
;
358 NTSTATUS next_status
;
361 * The sub request for async backend calls.
362 * This is used for SMB2 Cancel.
364 struct tevent_req
*subreq
;
367 /* the NBT header is not allocated */
373 * vector[2] fixed body
374 * vector[3] dynamic body
379 * vector[5] fixed body
380 * vector[6] dynamic body
385 struct iovec
*vector
;
389 /* the NBT header is not allocated */
395 * vector[2] fixed body
396 * vector[3] dynamic body
401 * vector[5] fixed body
402 * vector[6] dynamic body
407 struct iovec
*vector
;
412 struct smbd_server_connection
;
414 struct smbd_smb2_session
{
415 struct smbd_smb2_session
*prev
, *next
;
416 struct smbd_server_connection
*sconn
;
419 struct auth_ntlmssp_state
*auth_ntlmssp_state
;
420 struct auth_serversupplied_info
*server_info
;
421 DATA_BLOB session_key
;
424 user_struct
*compat_vuser
;
427 /* an id tree used to allocate tids */
428 struct idr_context
*idtree
;
430 /* this is the limit of tid values for this connection */
433 struct smbd_smb2_tcon
*list
;
437 struct smbd_smb2_tcon
{
438 struct smbd_smb2_tcon
*prev
, *next
;
439 struct smbd_smb2_session
*session
;
442 connection_struct
*compat_conn
;
445 struct pending_auth_data
;
447 struct smbd_server_connection
{
449 struct client_address client_id
;
450 const struct tsocket_address
*local_address
;
451 const struct tsocket_address
*remote_address
;
452 struct messaging_context
*msg_ctx
;
459 struct files_struct
*files
;
460 struct bitmap
*file_bmap
;
461 int real_max_open_files
;
463 struct fsp_singleton_cache fsp_fi_cache
;
464 unsigned long file_gen_counter
;
467 /* number of open connections (tcons) */
471 struct fd_event
*fde
;
475 * fd for the fcntl lock mutexing access to our sock
480 * fd for the trusted pipe from
486 * fde for the trusted_fd
488 struct fd_event
*trusted_fde
;
491 * Reference count for the fcntl lock to
492 * allow recursive locks.
497 uint64_t num_requests
;
499 bool encrypted_passwords
;
501 struct auth_context
*auth_context
;
504 * Size of the data we can receive. Set by us.
505 * Can be modified by the max xmit parameter.
513 * Size of data we can send to client. Set
514 * by the client for all protocols above CORE.
515 * Set by us for CORE protocol.
518 uint16_t last_session_tag
;
520 /* users from session setup */
521 char *session_userlist
;
522 /* workgroup from session setup. */
523 char *session_workgroup
;
525 * this holds info on user ids that are already
526 * validated for this VC
528 user_struct
*validated_users
;
530 int num_validated_vuids
;
533 connection_struct
*Connections
;
534 /* number of open connections */
537 struct smb_signing_state
*signing_state
;
538 /* List to store partial SPNEGO auth fragments. */
539 struct pending_auth_data
*pd_list
;
541 struct notify_mid_map
*notify_mid_maps
;
544 struct bitmap
*dptr_bmap
;
545 struct dptr_struct
*dirptrs
;
549 /* dlink list we store pending lock records on. */
550 struct blocking_lock_record
*blocking_lock_queue
;
551 /* dlink list we move cancelled lock records onto. */
552 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
554 /* The event that makes us process our blocking lock queue */
555 struct timed_event
*brl_timeout
;
557 bool blocking_lock_unlock_state
;
558 bool blocking_lock_cancel_state
;
562 struct tevent_context
*event_ctx
;
563 struct tevent_queue
*recv_queue
;
564 struct tevent_queue
*send_queue
;
565 struct tstream_context
*stream
;
567 /* an id tree used to allocate vuids */
568 /* this holds info on session vuids that are already
569 * validated for this VC */
570 struct idr_context
*idtree
;
572 /* this is the limit of vuid values for this connection */
575 struct smbd_smb2_session
*list
;
578 /* The event that makes us process our blocking lock queue */
579 struct timed_event
*brl_timeout
;
580 bool blocking_lock_unlock_state
;
582 struct smbd_smb2_request
*requests
;
584 uint32_t credits_granted
;
585 uint32_t max_credits
;
586 struct bitmap
*credits_bitmap
;
590 extern struct smbd_server_connection
*smbd_server_conn
;
592 struct smbd_server_connection
*msg_ctx_to_sconn(struct messaging_context
*msg_ctx
);
594 void smbd_init_globals(void);