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 uint32_t global_client_caps;
119 extern uint16_t fnf_handle;
122 connection_struct *conn;
125 /* A stack of current_user connection contexts. */
126 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
127 extern int conn_ctx_stack_ndx;
129 struct vfs_init_function_entry;
130 extern struct vfs_init_function_entry *backends;
131 extern char *sparse_buf;
133 /* Current number of oplocks we have outstanding. */
134 extern int32_t exclusive_oplocks_open;
135 extern int32_t level_II_oplocks_open;
136 extern bool global_client_failed_oplock_break;
137 extern struct kernel_oplocks *koplocks;
139 extern int am_parent;
140 extern int server_fd;
141 extern struct event_context *smbd_event_ctx;
142 extern struct messaging_context *smbd_msg_ctx;
143 extern struct memcache *smbd_memcache_ctx;
144 extern bool exit_firsttime;
146 extern struct child_pid *children;
147 extern int num_children;
149 struct tstream_context;
150 struct smbd_smb2_request;
151 struct smbd_smb2_session;
152 struct smbd_smb2_tcon;
154 DATA_BLOB negprot_spnego(void);
156 void smbd_lock_socket(struct smbd_server_connection *sconn);
157 void smbd_unlock_socket(struct smbd_server_connection *sconn);
159 NTSTATUS smb2_signing_sign_pdu(DATA_BLOB session_key,
160 struct iovec *vector,
162 NTSTATUS smb2_signing_check_pdu(DATA_BLOB session_key,
163 const struct iovec *vector,
166 struct smbd_lock_element {
168 enum brl_type brltype;
173 NTSTATUS smbd_do_locking(struct smb_request *req,
178 struct smbd_lock_element *ulocks,
180 struct smbd_lock_element *locks,
183 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
187 struct smb_filename *smb_fname,
189 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);
321 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
322 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
323 struct tevent_immediate *im,
326 /* SMB1 -> SMB2 glue. */
327 void send_break_message_smb2(files_struct *fsp, uint8_t level);
328 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
329 struct smb_request *req,
334 enum brl_type lock_type,
335 enum brl_flavour lock_flav,
338 uint32_t blocking_pid);
339 /* From smbd/smb2_create.c */
340 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
341 struct timeval *p_request_time,
343 bool open_was_deferred_smb2(uint64_t mid);
344 void remove_deferred_open_message_smb2(uint64_t mid);
345 void schedule_deferred_open_message_smb2(uint64_t mid);
346 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
347 struct timeval request_time,
348 struct timeval timeout,
352 struct smbd_smb2_request {
353 struct smbd_smb2_request *prev, *next;
355 TALLOC_CTX *mem_pool;
356 struct smbd_smb2_request **parent;
358 struct smbd_server_connection *sconn;
360 /* the session the request operates on, maybe NULL */
361 struct smbd_smb2_session *session;
363 /* the tcon the request operates on, maybe NULL */
364 struct smbd_smb2_tcon *tcon;
371 struct files_struct *compat_chain_fsp;
373 NTSTATUS next_status;
376 * The sub request for async backend calls.
377 * This is used for SMB2 Cancel.
379 struct tevent_req *subreq;
382 /* the NBT header is not allocated */
388 * vector[2] fixed body
389 * vector[3] dynamic body
394 * vector[5] fixed body
395 * vector[6] dynamic body
400 struct iovec *vector;
404 /* the NBT header is not allocated */
410 * vector[2] fixed body
411 * vector[3] dynamic body
416 * vector[5] fixed body
417 * vector[6] dynamic body
422 struct iovec *vector;
427 struct smbd_server_connection;
429 struct smbd_smb2_session {
430 struct smbd_smb2_session *prev, *next;
431 struct smbd_server_connection *sconn;
434 AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
435 struct auth_serversupplied_info *server_info;
436 DATA_BLOB session_key;
439 user_struct *compat_vuser;
442 /* an id tree used to allocate tids */
443 struct idr_context *idtree;
445 /* this is the limit of tid values for this connection */
448 struct smbd_smb2_tcon *list;
452 struct smbd_smb2_tcon {
453 struct smbd_smb2_tcon *prev, *next;
454 struct smbd_smb2_session *session;
457 connection_struct *compat_conn;
460 struct pending_auth_data;
462 struct smbd_server_connection {
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;
533 connection_struct *Connections;
534 /* number of open connections */
538 struct smb_signing_state *signing_state;
539 /* List to store partial SPNEGO auth fragments. */
540 struct pending_auth_data *pd_list;
542 struct notify_mid_map *notify_mid_maps;
545 struct bitmap *dptr_bmap;
546 struct dptr_struct *dirptrs;
551 struct tevent_context *event_ctx;
552 struct tevent_queue *recv_queue;
553 struct tevent_queue *send_queue;
554 struct tstream_context *stream;
556 /* an id tree used to allocate vuids */
557 /* this holds info on session vuids that are already
558 * validated for this VC */
559 struct idr_context *idtree;
561 /* this is the limit of vuid values for this connection */
564 struct smbd_smb2_session *list;
566 struct smbd_smb2_request *requests;
570 extern struct smbd_server_connection *smbd_server_conn;
572 void smbd_init_globals(void);