2 Unix SMB/Netbios implementation.
4 Copyright (C) Stefan Metzmacher 2009
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 extern struct aio_extra
*aio_list_head
;
23 extern struct tevent_signal
*aio_signal_event
;
24 extern int aio_pending_size
;
25 extern int outstanding_aio_calls
;
28 /* dlink list we store pending lock records on. */
29 extern struct blocking_lock_record
*blocking_lock_queue
;
31 /* dlink list we move cancelled lock records onto. */
32 extern struct blocking_lock_record
*blocking_lock_cancelled_queue
;
34 /* The event that makes us process our blocking lock queue */
35 extern struct timed_event
*brl_timeout
;
37 extern bool blocking_lock_unlock_state
;
38 extern bool blocking_lock_cancel_state
;
41 struct smbd_dmapi_context
;
42 extern struct smbd_dmapi_context
*dmapi_ctx
;
45 extern bool dfree_broken
;
47 /* how many write cache buffers have been allocated */
48 extern unsigned int allocated_write_caches
;
50 extern int real_max_open_files
;
51 extern struct bitmap
*file_bmap
;
52 extern files_struct
*Files
;
53 extern int files_used
;
54 /* A singleton cache to speed up searching by dev/inode. */
55 struct fsp_singleton_cache
{
59 extern struct fsp_singleton_cache fsp_fi_cache
;
60 extern unsigned long file_gen_counter
;
61 extern int first_file
;
63 extern const struct mangle_fns
*mangle_fns
;
65 extern unsigned char *chartest
;
66 extern TDB_CONTEXT
*tdb_mangled_cache
;
68 /* these tables are used to provide fast tests for characters */
69 extern unsigned char char_flags
[256];
71 this determines how many characters are used from the original filename
72 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
73 The largest possible value is 6.
75 extern unsigned mangle_prefix
;
76 extern unsigned char base_reverse
[256];
78 extern char *last_from
;
82 extern struct msg_state
*smbd_msg_state
;
84 extern bool logged_ioctl_message
;
89 extern time_t last_smb_conf_reload_time
;
90 extern time_t last_printer_reload_time
;
91 /****************************************************************************
92 structure to hold a linked list of queued messages.
94 ****************************************************************************/
95 struct pending_message_list
;
96 extern struct pending_message_list
*deferred_open_queue
;
97 extern uint32_t common_flags2
;
99 struct smb_srv_trans_enc_ctx
;
100 extern struct smb_srv_trans_enc_ctx
*partial_srv_trans_enc_ctx
;
101 extern struct smb_srv_trans_enc_ctx
*srv_trans_enc_ctx
;
105 NT_USER_TOKEN
*token
;
107 /* A stack of security contexts. We include the current context as being
108 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
109 extern struct sec_ctx sec_ctx_stack
[MAX_SEC_CTX_DEPTH
+ 1];
110 extern int sec_ctx_stack_ndx
;
111 extern bool become_uid_done
;
112 extern bool become_gid_done
;
114 extern connection_struct
*last_conn
;
115 extern uint16_t last_flags
;
117 extern struct db_context
*session_db_ctx_ptr
;
119 extern uint32_t global_client_caps
;
121 extern uint16_t fnf_handle
;
124 connection_struct
*conn
;
127 /* A stack of current_user connection contexts. */
128 extern struct conn_ctx conn_ctx_stack
[MAX_SEC_CTX_DEPTH
];
129 extern int conn_ctx_stack_ndx
;
131 struct vfs_init_function_entry
;
132 extern struct vfs_init_function_entry
*backends
;
133 extern char *sparse_buf
;
135 /* Current number of oplocks we have outstanding. */
136 extern int32_t exclusive_oplocks_open
;
137 extern int32_t level_II_oplocks_open
;
138 extern bool global_client_failed_oplock_break
;
139 extern struct kernel_oplocks
*koplocks
;
141 extern int am_parent
;
142 extern int server_fd
;
143 extern struct event_context
*smbd_event_ctx
;
144 extern struct messaging_context
*smbd_msg_ctx
;
145 extern struct memcache
*smbd_memcache_ctx
;
146 extern bool exit_firsttime
;
148 extern struct child_pid
*children
;
149 extern int num_children
;
151 struct tstream_context
;
152 struct smbd_smb2_request
;
153 struct smbd_smb2_session
;
154 struct smbd_smb2_tcon
;
156 DATA_BLOB
negprot_spnego(void);
158 NTSTATUS
smb2_signing_sign_pdu(DATA_BLOB session_key
,
159 struct iovec
*vector
,
161 NTSTATUS
smb2_signing_check_pdu(DATA_BLOB session_key
,
162 const struct iovec
*vector
,
165 struct smbd_lock_element
{
167 enum brl_type brltype
;
172 NTSTATUS
smbd_do_locking(struct smb_request
*req
,
177 struct smbd_lock_element
*ulocks
,
179 struct smbd_lock_element
*locks
,
182 NTSTATUS
smbd_do_qfilepathinfo(connection_struct
*conn
,
186 struct smb_filename
*smb_fname
,
188 struct timespec write_time_ts
,
190 struct ea_list
*ea_list
,
194 unsigned int max_data_bytes
,
196 unsigned int *pdata_size
);
198 NTSTATUS
smbd_do_setfilepathinfo(connection_struct
*conn
,
199 struct smb_request
*req
,
203 struct smb_filename
*smb_fname
,
204 char **ppdata
, int total_data
,
207 NTSTATUS
smbd_do_qfsinfo(connection_struct
*conn
,
211 unsigned int max_data_bytes
,
215 bool smbd_dirptr_get_entry(TALLOC_CTX
*ctx
,
216 struct dptr_struct
*dirptr
,
221 bool (*match_fn
)(TALLOC_CTX
*ctx
,
226 bool (*mode_fn
)(TALLOC_CTX
*ctx
,
228 struct smb_filename
*smb_fname
,
232 struct smb_filename
**_smb_fname
,
236 bool smbd_dirptr_lanman2_entry(TALLOC_CTX
*ctx
,
237 connection_struct
*conn
,
238 struct dptr_struct
*dirptr
,
240 const char *path_mask
,
243 int requires_resume_key
,
253 bool *got_exact_match
,
254 int *_last_entry_off
,
255 struct ea_list
*name_list
);
257 NTSTATUS
smbd_check_open_rights(struct connection_struct
*conn
,
258 const struct smb_filename
*smb_fname
,
259 uint32_t access_mask
,
260 uint32_t *access_granted
);
262 void smbd_notify_cancel_by_smbreq(struct smbd_server_connection
*sconn
,
263 const struct smb_request
*smbreq
);
265 void smbd_server_connection_terminate_ex(struct smbd_server_connection
*sconn
,
267 const char *location
);
268 #define smbd_server_connection_terminate(sconn, reason) \
269 smbd_server_connection_terminate_ex(sconn, reason, __location__)
271 bool smbd_is_smb2_header(const uint8_t *inbuf
, size_t size
);
273 void reply_smb2002(struct smb_request
*req
, uint16_t choice
);
274 void smbd_smb2_first_negprot(struct smbd_server_connection
*sconn
,
275 const uint8_t *inbuf
, size_t size
);
277 NTSTATUS
smbd_smb2_request_error_ex(struct smbd_smb2_request
*req
,
280 const char *location
);
281 #define smbd_smb2_request_error(req, status) \
282 smbd_smb2_request_error_ex(req, status, NULL, __location__)
283 NTSTATUS
smbd_smb2_request_done_ex(struct smbd_smb2_request
*req
,
285 DATA_BLOB body
, DATA_BLOB
*dyn
,
286 const char *location
);
287 #define smbd_smb2_request_done(req, body, dyn) \
288 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
290 NTSTATUS
smbd_smb2_send_oplock_break(struct smbd_server_connection
*sconn
,
291 uint64_t file_id_persistent
,
292 uint64_t file_id_volatile
,
293 uint8_t oplock_level
);
295 NTSTATUS
smbd_smb2_request_pending_queue(struct smbd_smb2_request
*req
,
296 struct tevent_req
*subreq
);
298 NTSTATUS
smbd_smb2_request_check_session(struct smbd_smb2_request
*req
);
299 NTSTATUS
smbd_smb2_request_check_tcon(struct smbd_smb2_request
*req
);
301 struct smb_request
*smbd_smb2_fake_smb_request(struct smbd_smb2_request
*req
);
303 NTSTATUS
smbd_smb2_request_process_negprot(struct smbd_smb2_request
*req
);
304 NTSTATUS
smbd_smb2_request_process_sesssetup(struct smbd_smb2_request
*req
);
305 NTSTATUS
smbd_smb2_request_process_logoff(struct smbd_smb2_request
*req
);
306 NTSTATUS
smbd_smb2_request_process_tcon(struct smbd_smb2_request
*req
);
307 NTSTATUS
smbd_smb2_request_process_tdis(struct smbd_smb2_request
*req
);
308 NTSTATUS
smbd_smb2_request_process_create(struct smbd_smb2_request
*req
);
309 NTSTATUS
smbd_smb2_request_process_close(struct smbd_smb2_request
*req
);
310 NTSTATUS
smbd_smb2_request_process_flush(struct smbd_smb2_request
*req
);
311 NTSTATUS
smbd_smb2_request_process_read(struct smbd_smb2_request
*req
);
312 NTSTATUS
smbd_smb2_request_process_write(struct smbd_smb2_request
*req
);
313 NTSTATUS
smbd_smb2_request_process_lock(struct smbd_smb2_request
*req
);
314 NTSTATUS
smbd_smb2_request_process_ioctl(struct smbd_smb2_request
*req
);
315 NTSTATUS
smbd_smb2_request_process_keepalive(struct smbd_smb2_request
*req
);
316 NTSTATUS
smbd_smb2_request_process_find(struct smbd_smb2_request
*req
);
317 NTSTATUS
smbd_smb2_request_process_notify(struct smbd_smb2_request
*req
);
318 NTSTATUS
smbd_smb2_request_process_getinfo(struct smbd_smb2_request
*req
);
319 NTSTATUS
smbd_smb2_request_process_setinfo(struct smbd_smb2_request
*req
);
320 NTSTATUS
smbd_smb2_request_process_break(struct smbd_smb2_request
*req
);
322 struct smbd_smb2_request
{
323 struct smbd_smb2_request
*prev
, *next
;
325 TALLOC_CTX
*mem_pool
;
326 struct smbd_smb2_request
**parent
;
328 struct smbd_server_connection
*sconn
;
330 /* the session the request operates on, maybe NULL */
331 struct smbd_smb2_session
*session
;
333 /* the tcon the request operates on, maybe NULL */
334 struct smbd_smb2_tcon
*tcon
;
339 struct files_struct
*compat_chain_fsp
;
341 NTSTATUS next_status
;
344 * The sub request for async backend calls.
345 * This is used for SMB2 Cancel.
347 struct tevent_req
*subreq
;
350 /* the NBT header is not allocated */
356 * vector[2] fixed body
357 * vector[3] dynamic body
362 * vector[5] fixed body
363 * vector[6] dynamic body
368 struct iovec
*vector
;
372 /* the NBT header is not allocated */
378 * vector[2] fixed body
379 * vector[3] dynamic body
384 * vector[5] fixed body
385 * vector[6] dynamic body
390 struct iovec
*vector
;
395 struct smbd_server_connection
;
397 struct smbd_smb2_session
{
398 struct smbd_smb2_session
*prev
, *next
;
399 struct smbd_server_connection
*sconn
;
402 AUTH_NTLMSSP_STATE
*auth_ntlmssp_state
;
403 struct auth_serversupplied_info
*server_info
;
404 DATA_BLOB session_key
;
407 user_struct
*compat_vuser
;
410 /* an id tree used to allocate tids */
411 struct idr_context
*idtree
;
413 /* this is the limit of tid values for this connection */
416 struct smbd_smb2_tcon
*list
;
420 struct smbd_smb2_tcon
{
421 struct smbd_smb2_tcon
*prev
, *next
;
422 struct smbd_smb2_session
*session
;
425 connection_struct
*compat_conn
;
428 struct pending_auth_data
;
430 struct smbd_server_connection
{
436 struct fd_event
*fde
;
437 uint64_t num_requests
;
439 bool encrypted_passwords
;
441 struct auth_context
*auth_context
;
444 * Size of the data we can receive. Set by us.
445 * Can be modified by the max xmit parameter.
453 * Size of data we can send to client. Set
454 * by the client for all protocols above CORE.
455 * Set by us for CORE protocol.
458 uint16_t last_session_tag
;
460 /* users from session setup */
461 char *session_userlist
;
462 /* workgroup from session setup. */
463 char *session_workgroup
;
465 * this holds info on user ids that are already
466 * validated for this VC
468 user_struct
*validated_users
;
470 int num_validated_vuids
;
476 connection_struct
*Connections
;
477 /* number of open connections */
481 struct smb_signing_state
*signing_state
;
482 /* List to store partial SPNEGO auth fragments. */
483 struct pending_auth_data
*pd_list
;
485 struct notify_mid_map
*notify_mid_maps
;
488 struct bitmap
*dptr_bmap
;
489 struct dptr_struct
*dirptrs
;
494 struct tevent_context
*event_ctx
;
495 struct tevent_queue
*recv_queue
;
496 struct tevent_queue
*send_queue
;
497 struct tstream_context
*stream
;
499 /* an id tree used to allocate vuids */
500 /* this holds info on session vuids that are already
501 * validated for this VC */
502 struct idr_context
*idtree
;
504 /* this is the limit of vuid values for this connection */
507 struct smbd_smb2_session
*list
;
509 struct smbd_smb2_request
*requests
;
513 extern struct smbd_server_connection
*smbd_server_conn
;
515 void smbd_init_globals(void);