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];
67 extern char *last_from
;
71 extern struct msg_state
*smbd_msg_state
;
73 extern bool logged_ioctl_message
;
78 extern time_t last_smb_conf_reload_time
;
79 extern time_t last_printer_reload_time
;
80 /****************************************************************************
81 structure to hold a linked list of queued messages.
83 ****************************************************************************/
84 struct pending_message_list
;
85 extern struct pending_message_list
*deferred_open_queue
;
86 extern uint32_t common_flags2
;
88 struct smb_srv_trans_enc_ctx
;
89 extern struct smb_srv_trans_enc_ctx
*partial_srv_trans_enc_ctx
;
90 extern struct smb_srv_trans_enc_ctx
*srv_trans_enc_ctx
;
96 /* A stack of security contexts. We include the current context as being
97 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
98 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
99 extern int sec_ctx_stack_ndx
;
100 extern bool become_uid_done
;
101 extern bool become_gid_done
;
103 extern connection_struct
*last_conn
;
104 extern uint16_t last_flags
;
106 extern uint32_t global_client_caps
;
108 extern uint16_t fnf_handle
;
111 connection_struct
*conn
;
114 /* A stack of current_user connection contexts. */
115 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
116 extern int conn_ctx_stack_ndx
;
118 struct vfs_init_function_entry
;
119 extern struct vfs_init_function_entry
*backends
;
120 extern char *sparse_buf
;
122 /* Current number of oplocks we have outstanding. */
123 extern int32_t exclusive_oplocks_open
;
124 extern int32_t level_II_oplocks_open
;
125 extern struct kernel_oplocks
*koplocks
;
127 extern int am_parent
;
128 extern int server_fd
;
129 extern struct event_context
*smbd_event_ctx
;
130 extern struct messaging_context
*smbd_msg_ctx
;
131 extern struct memcache
*smbd_memcache_ctx
;
132 extern bool exit_firsttime
;
134 extern struct child_pid
*children
;
135 extern int num_children
;
137 struct tstream_context
;
138 struct smbd_smb2_request
;
139 struct smbd_smb2_session
;
140 struct smbd_smb2_tcon
;
142 DATA_BLOB
negprot_spnego(void);
144 void smbd_lock_socket(struct smbd_server_connection
*sconn
);
145 void smbd_unlock_socket(struct smbd_server_connection
*sconn
);
147 NTSTATUS
smb2_signing_sign_pdu(DATA_BLOB session_key
,
148 struct iovec
*vector
,
150 NTSTATUS
smb2_signing_check_pdu(DATA_BLOB session_key
,
151 const struct iovec
*vector
,
154 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
159 struct smbd_lock_element
*ulocks
,
161 struct smbd_lock_element
*locks
,
164 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
168 struct smb_filename
*smb_fname
,
170 struct timespec write_time_ts
,
171 struct ea_list
*ea_list
,
175 unsigned int max_data_bytes
,
177 unsigned int *pdata_size
);
179 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
180 struct smb_request
*req
,
184 struct smb_filename
*smb_fname
,
185 char **ppdata
, int total_data
,
188 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
192 unsigned int max_data_bytes
,
196 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
197 struct dptr_struct
*dirptr
,
202 bool (*match_fn
)(TALLOC_CTX
*ctx
,
207 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
209 struct smb_filename
*smb_fname
,
213 struct smb_filename
**_smb_fname
,
217 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
218 connection_struct
*conn
,
219 struct dptr_struct
*dirptr
,
221 const char *path_mask
,
224 int requires_resume_key
,
234 bool *got_exact_match
,
235 int *_last_entry_off
,
236 struct ea_list
*name_list
);
238 NTSTATUS
smbd_check_open_rights(struct connection_struct
*conn
,
239 const struct smb_filename
*smb_fname
,
240 uint32_t access_mask
,
241 uint32_t *access_granted
);
243 void smbd_notify_cancel_by_smbreq(struct smbd_server_connection
*sconn
,
244 const struct smb_request
*smbreq
);
246 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
248 const char *location
);
249 #define smbd_server_connection_terminate(sconn, reason) \
250 smbd_server_connection_terminate_ex(sconn, reason, __location__)
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_volatile
,
273 uint8_t oplock_level
);
275 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
276 struct tevent_req
*subreq
);
278 NTSTATUS
smbd_smb2_request_check_session(struct smbd_smb2_request
*req
);
279 NTSTATUS
smbd_smb2_request_check_tcon(struct smbd_smb2_request
*req
);
281 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
283 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
284 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
285 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
286 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
287 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
288 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
289 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
290 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
291 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
292 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
293 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
294 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
295 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
296 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
297 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
298 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
299 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
300 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
301 NTSTATUS
smbd_smb2_request_dispatch(struct smbd_smb2_request
*req
);
302 void smbd_smb2_request_dispatch_immediate(struct tevent_context
*ctx
,
303 struct tevent_immediate
*im
,
306 /* SMB1 -> SMB2 glue. */
307 void send_break_message_smb2(files_struct
*fsp
, int level
);
308 struct blocking_lock_record
*get_pending_smb2req_blr(struct smbd_smb2_request
*smb2req
);
309 bool push_blocking_lock_request_smb2( struct byte_range_lock
*br_lck
,
310 struct smb_request
*req
,
315 enum brl_type lock_type
,
316 enum brl_flavour lock_flav
,
319 uint64_t blocking_smblctx
);
320 void process_blocking_lock_queue_smb2(struct timeval tv_curr
);
321 void cancel_pending_lock_requests_by_fid_smb2(files_struct
*fsp
,
322 struct byte_range_lock
*br_lck
,
323 enum file_close_type close_type
);
324 /* From smbd/smb2_create.c */
325 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level
);
326 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request
*smb2req
,
327 struct timeval
*p_request_time
,
329 bool open_was_deferred_smb2(uint64_t mid
);
330 void remove_deferred_open_message_smb2(uint64_t mid
);
331 void schedule_deferred_open_message_smb2(uint64_t mid
);
332 bool push_deferred_open_message_smb2(struct smbd_smb2_request
*smb2req
,
333 struct timeval request_time
,
334 struct timeval timeout
,
339 struct smbd_smb2_request
{
340 struct smbd_smb2_request
*prev
, *next
;
342 TALLOC_CTX
*mem_pool
;
343 struct smbd_smb2_request
**parent
;
345 struct smbd_server_connection
*sconn
;
347 /* the session the request operates on, maybe NULL */
348 struct smbd_smb2_session
*session
;
350 /* the tcon the request operates on, maybe NULL */
351 struct smbd_smb2_tcon
*tcon
;
358 struct files_struct
*compat_chain_fsp
;
360 NTSTATUS next_status
;
363 * The sub request for async backend calls.
364 * This is used for SMB2 Cancel.
366 struct tevent_req
*subreq
;
369 /* the NBT header is not allocated */
375 * vector[2] fixed body
376 * vector[3] dynamic body
381 * vector[5] fixed body
382 * vector[6] dynamic body
387 struct iovec
*vector
;
391 /* the NBT header is not allocated */
397 * vector[2] fixed body
398 * vector[3] dynamic body
403 * vector[5] fixed body
404 * vector[6] dynamic body
409 struct iovec
*vector
;
414 struct smbd_server_connection
;
416 struct smbd_smb2_session
{
417 struct smbd_smb2_session
*prev
, *next
;
418 struct smbd_server_connection
*sconn
;
421 AUTH_NTLMSSP_STATE
*auth_ntlmssp_state
;
422 struct auth_serversupplied_info
*server_info
;
423 DATA_BLOB session_key
;
426 user_struct
*compat_vuser
;
429 /* an id tree used to allocate tids */
430 struct idr_context
*idtree
;
432 /* this is the limit of tid values for this connection */
435 struct smbd_smb2_tcon
*list
;
439 struct smbd_smb2_tcon
{
440 struct smbd_smb2_tcon
*prev
, *next
;
441 struct smbd_smb2_session
*session
;
444 connection_struct
*compat_conn
;
447 struct pending_auth_data
;
449 struct smbd_server_connection
{
450 const struct tsocket_address
*local_address
;
451 const struct tsocket_address
*remote_address
;
457 struct fd_event
*fde
;
461 * fd for the fcntl lock mutexing access to smbd_server_fd
466 * fd for the trusted pipe from
472 * fde for the trusted_fd
474 struct fd_event
*trusted_fde
;
477 * Reference count for the fcntl lock to
478 * allow recursive locks.
483 uint64_t num_requests
;
485 bool encrypted_passwords
;
487 struct auth_context
*auth_context
;
490 * Size of the data we can receive. Set by us.
491 * Can be modified by the max xmit parameter.
499 * Size of data we can send to client. Set
500 * by the client for all protocols above CORE.
501 * Set by us for CORE protocol.
504 uint16_t last_session_tag
;
506 /* users from session setup */
507 char *session_userlist
;
508 /* workgroup from session setup. */
509 char *session_workgroup
;
511 * this holds info on user ids that are already
512 * validated for this VC
514 user_struct
*validated_users
;
516 int num_validated_vuids
;
522 connection_struct
*Connections
;
523 /* number of open connections */
527 struct smb_signing_state
*signing_state
;
528 /* List to store partial SPNEGO auth fragments. */
529 struct pending_auth_data
*pd_list
;
531 struct notify_mid_map
*notify_mid_maps
;
534 struct bitmap
*dptr_bmap
;
535 struct dptr_struct
*dirptrs
;
539 /* dlink list we store pending lock records on. */
540 struct blocking_lock_record
*blocking_lock_queue
;
541 /* dlink list we move cancelled lock records onto. */
542 struct blocking_lock_record
*blocking_lock_cancelled_queue
;
544 /* The event that makes us process our blocking lock queue */
545 struct timed_event
*brl_timeout
;
547 bool blocking_lock_unlock_state
;
548 bool blocking_lock_cancel_state
;
552 struct tevent_context
*event_ctx
;
553 struct tevent_queue
*recv_queue
;
554 struct tevent_queue
*send_queue
;
555 struct tstream_context
*stream
;
557 /* an id tree used to allocate vuids */
558 /* this holds info on session vuids that are already
559 * validated for this VC */
560 struct idr_context
*idtree
;
562 /* this is the limit of vuid values for this connection */
565 struct smbd_smb2_session
*list
;
568 /* The event that makes us process our blocking lock queue */
569 struct timed_event
*brl_timeout
;
570 bool blocking_lock_unlock_state
;
572 struct smbd_smb2_request
*requests
;
576 extern struct smbd_server_connection
*smbd_server_conn
;
578 void smbd_init_globals(void);