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;
58 this determines how many characters are used from the original filename
59 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
60 The largest possible value is 6.
62 extern unsigned mangle_prefix;
65 extern struct msg_state *smbd_msg_state;
67 extern bool logged_ioctl_message;
72 extern time_t last_smb_conf_reload_time;
73 extern time_t last_printer_reload_time;
74 /****************************************************************************
75 structure to hold a linked list of queued messages.
77 ****************************************************************************/
78 struct pending_message_list;
79 extern struct pending_message_list *deferred_open_queue;
80 extern uint32_t common_flags2;
82 struct smb_srv_trans_enc_ctx;
83 extern struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx;
84 extern struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx;
90 /* A stack of security contexts. We include the current context as being
91 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
92 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
93 extern int sec_ctx_stack_ndx;
94 extern bool become_uid_done;
95 extern bool become_gid_done;
97 extern connection_struct *last_conn;
98 extern uint16_t last_flags;
100 extern uint32_t global_client_caps;
102 extern uint16_t fnf_handle;
105 connection_struct *conn;
108 /* A stack of current_user connection contexts. */
109 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
110 extern int conn_ctx_stack_ndx;
112 struct vfs_init_function_entry;
113 extern struct vfs_init_function_entry *backends;
114 extern char *sparse_buf;
115 extern char *LastDir;
117 /* Current number of oplocks we have outstanding. */
118 extern int32_t exclusive_oplocks_open;
119 extern int32_t level_II_oplocks_open;
120 extern struct kernel_oplocks *koplocks;
122 extern int am_parent;
123 extern int server_fd;
124 extern struct event_context *smbd_event_ctx;
125 extern struct messaging_context *smbd_msg_ctx;
126 extern struct memcache *smbd_memcache_ctx;
127 extern bool exit_firsttime;
129 extern struct child_pid *children;
130 extern int num_children;
132 struct tstream_context;
133 struct smbd_smb2_request;
134 struct smbd_smb2_session;
135 struct smbd_smb2_tcon;
137 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbd_server_connection *sconn);
139 void smbd_lock_socket(struct smbd_server_connection *sconn);
140 void smbd_unlock_socket(struct smbd_server_connection *sconn);
142 NTSTATUS smb2_signing_sign_pdu(DATA_BLOB session_key,
143 struct iovec *vector,
145 NTSTATUS smb2_signing_check_pdu(DATA_BLOB session_key,
146 const struct iovec *vector,
149 NTSTATUS smbd_do_locking(struct smb_request *req,
154 struct smbd_lock_element *ulocks,
156 struct smbd_lock_element *locks,
159 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
163 struct smb_filename *smb_fname,
165 struct timespec write_time_ts,
166 struct ea_list *ea_list,
170 unsigned int max_data_bytes,
172 unsigned int *pdata_size);
174 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
175 struct smb_request *req,
179 struct smb_filename *smb_fname,
180 char **ppdata, int total_data,
183 NTSTATUS smbd_do_qfsinfo(connection_struct *conn,
187 unsigned int max_data_bytes,
191 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
192 struct dptr_struct *dirptr,
197 bool (*match_fn)(TALLOC_CTX *ctx,
202 bool (*mode_fn)(TALLOC_CTX *ctx,
204 struct smb_filename *smb_fname,
208 struct smb_filename **_smb_fname,
212 bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
213 connection_struct *conn,
214 struct dptr_struct *dirptr,
216 const char *path_mask,
219 int requires_resume_key,
229 bool *got_exact_match,
230 int *_last_entry_off,
231 struct ea_list *name_list);
233 NTSTATUS smbd_check_open_rights(struct connection_struct *conn,
234 const struct smb_filename *smb_fname,
235 uint32_t access_mask,
236 uint32_t *access_granted);
238 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
240 void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn,
242 const char *location);
243 #define smbd_server_connection_terminate(sconn, reason) \
244 smbd_server_connection_terminate_ex(sconn, reason, __location__)
246 struct server_id sconn_server_id(const struct smbd_server_connection *sconn);
248 const char *smb2_opcode_name(uint16_t opcode);
249 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
251 void reply_smb2002(struct smb_request *req, uint16_t choice);
252 void smbd_smb2_first_negprot(struct smbd_server_connection *sconn,
253 const uint8_t *inbuf, size_t size);
255 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
258 const char *location);
259 #define smbd_smb2_request_error(req, status) \
260 smbd_smb2_request_error_ex(req, status, NULL, __location__)
261 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
263 DATA_BLOB body, DATA_BLOB *dyn,
264 const char *location);
265 #define smbd_smb2_request_done(req, body, dyn) \
266 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
268 NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
269 uint64_t file_id_persistent,
270 uint64_t file_id_volatile,
271 uint8_t oplock_level);
273 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
274 struct tevent_req *subreq);
276 NTSTATUS smbd_smb2_request_check_session(struct smbd_smb2_request *req);
277 NTSTATUS smbd_smb2_request_check_tcon(struct smbd_smb2_request *req);
279 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
280 void remove_smb2_chained_fsp(files_struct *fsp);
282 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
283 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
284 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
285 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
286 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
287 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
288 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
289 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
290 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
291 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
292 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
293 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
294 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
295 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
296 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
297 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
298 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
299 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
300 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
301 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
302 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
303 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
304 struct tevent_immediate *im,
307 /* SMB1 -> SMB2 glue. */
308 void send_break_message_smb2(files_struct *fsp, int level);
309 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
310 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
311 struct smb_request *req,
316 enum brl_type lock_type,
317 enum brl_flavour lock_flav,
320 uint64_t blocking_smblctx);
321 void process_blocking_lock_queue_smb2(
322 struct smbd_server_connection *sconn, struct timeval tv_curr);
323 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
324 struct byte_range_lock *br_lck,
325 enum file_close_type close_type);
326 /* From smbd/smb2_create.c */
327 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
328 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
329 struct timeval *p_request_time,
331 bool open_was_deferred_smb2(struct smbd_server_connection *sconn,
333 void remove_deferred_open_message_smb2(
334 struct smbd_server_connection *sconn, uint64_t mid);
335 void schedule_deferred_open_message_smb2(
336 struct smbd_server_connection *sconn, uint64_t mid);
337 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
338 struct timeval request_time,
339 struct timeval timeout,
344 struct smbd_smb2_request {
345 struct smbd_smb2_request *prev, *next;
347 TALLOC_CTX *mem_pool;
348 struct smbd_smb2_request **parent;
350 struct smbd_server_connection *sconn;
352 /* the session the request operates on, maybe NULL */
353 struct smbd_smb2_session *session;
355 /* the tcon the request operates on, maybe NULL */
356 struct smbd_smb2_tcon *tcon;
363 /* fake smb1 request. */
364 struct smb_request *smb1req;
365 struct files_struct *compat_chain_fsp;
367 NTSTATUS next_status;
370 * The sub request for async backend calls.
371 * This is used for SMB2 Cancel.
373 struct tevent_req *subreq;
376 /* the NBT header is not allocated */
382 * vector[2] fixed body
383 * vector[3] dynamic body
388 * vector[5] fixed body
389 * vector[6] dynamic body
394 struct iovec *vector;
398 /* the NBT header is not allocated */
404 * vector[2] fixed body
405 * vector[3] dynamic body
410 * vector[5] fixed body
411 * vector[6] dynamic body
416 struct iovec *vector;
421 struct smbd_server_connection;
423 struct smbd_smb2_session {
424 struct smbd_smb2_session *prev, *next;
425 struct smbd_server_connection *sconn;
428 struct auth_ntlmssp_state *auth_ntlmssp_state;
429 struct auth_serversupplied_info *server_info;
430 DATA_BLOB session_key;
433 user_struct *compat_vuser;
436 /* an id tree used to allocate tids */
437 struct idr_context *idtree;
439 /* this is the limit of tid values for this connection */
442 struct smbd_smb2_tcon *list;
446 struct smbd_smb2_tcon {
447 struct smbd_smb2_tcon *prev, *next;
448 struct smbd_smb2_session *session;
451 connection_struct *compat_conn;
454 struct pending_auth_data;
456 struct smbd_server_connection {
458 struct client_address client_id;
459 const struct tsocket_address *local_address;
460 const struct tsocket_address *remote_address;
461 struct messaging_context *msg_ctx;
468 struct fd_event *fde;
472 * fd for the fcntl lock mutexing access to our sock
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);