source: branches/samba-3.5.x/source3/smbd/globals.h@ 717

Last change on this file since 717 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 14.3 KB
Line 
1/*
2 Unix SMB/Netbios implementation.
3 smbd globals
4 Copyright (C) Stefan Metzmacher 2009
5
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.
10
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.
15
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/>.
18*/
19
20#if defined(WITH_AIO)
21struct aio_extra;
22extern struct aio_extra *aio_list_head;
23extern struct tevent_signal *aio_signal_event;
24extern int aio_pending_size;
25extern int outstanding_aio_calls;
26#endif
27
28/* dlink list we store pending lock records on. */
29extern struct blocking_lock_record *blocking_lock_queue;
30
31/* dlink list we move cancelled lock records onto. */
32extern struct blocking_lock_record *blocking_lock_cancelled_queue;
33
34/* The event that makes us process our blocking lock queue */
35extern struct timed_event *brl_timeout;
36
37extern bool blocking_lock_unlock_state;
38extern bool blocking_lock_cancel_state;
39
40#ifdef USE_DMAPI
41struct smbd_dmapi_context;
42extern struct smbd_dmapi_context *dmapi_ctx;
43#endif
44
45extern bool dfree_broken;
46
47/* how many write cache buffers have been allocated */
48extern unsigned int allocated_write_caches;
49
50extern int real_max_open_files;
51extern struct bitmap *file_bmap;
52extern files_struct *Files;
53extern int files_used;
54/* A singleton cache to speed up searching by dev/inode. */
55struct fsp_singleton_cache {
56 files_struct *fsp;
57 struct file_id id;
58};
59extern struct fsp_singleton_cache fsp_fi_cache;
60extern unsigned long file_gen_counter;
61extern int first_file;
62
63extern const struct mangle_fns *mangle_fns;
64
65extern unsigned char *chartest;
66extern TDB_CONTEXT *tdb_mangled_cache;
67
68/* these tables are used to provide fast tests for characters */
69extern unsigned char char_flags[256];
70/*
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.
74*/
75extern unsigned mangle_prefix;
76extern unsigned char base_reverse[256];
77
78extern char *last_from;
79extern char *last_to;
80
81struct msg_state;
82extern struct msg_state *smbd_msg_state;
83
84extern bool logged_ioctl_message;
85
86extern int trans_num;
87
88extern pid_t mypid;
89extern time_t last_smb_conf_reload_time;
90extern time_t last_printer_reload_time;
91/****************************************************************************
92 structure to hold a linked list of queued messages.
93 for processing.
94****************************************************************************/
95struct pending_message_list;
96extern struct pending_message_list *deferred_open_queue;
97extern uint32_t common_flags2;
98
99struct smb_srv_trans_enc_ctx;
100extern struct smb_srv_trans_enc_ctx *partial_srv_trans_enc_ctx;
101extern struct smb_srv_trans_enc_ctx *srv_trans_enc_ctx;
102
103struct sec_ctx {
104 UNIX_USER_TOKEN ut;
105 NT_USER_TOKEN *token;
106};
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. */
109extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
110extern int sec_ctx_stack_ndx;
111extern bool become_uid_done;
112extern bool become_gid_done;
113
114extern connection_struct *last_conn;
115extern uint16_t last_flags;
116
117extern struct db_context *session_db_ctx_ptr;
118
119extern uint32_t global_client_caps;
120
121extern uint16_t fnf_handle;
122
123struct conn_ctx {
124 connection_struct *conn;
125 uint16 vuid;
126};
127/* A stack of current_user connection contexts. */
128extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
129extern int conn_ctx_stack_ndx;
130
131struct vfs_init_function_entry;
132extern struct vfs_init_function_entry *backends;
133extern char *sparse_buf;
134extern char *LastDir;
135
136/* Current number of oplocks we have outstanding. */
137extern int32_t exclusive_oplocks_open;
138extern int32_t level_II_oplocks_open;
139extern bool global_client_failed_oplock_break;
140extern struct kernel_oplocks *koplocks;
141
142extern int am_parent;
143extern int server_fd;
144extern struct event_context *smbd_event_ctx;
145extern struct messaging_context *smbd_msg_ctx;
146extern struct memcache *smbd_memcache_ctx;
147extern bool exit_firsttime;
148struct child_pid;
149extern struct child_pid *children;
150extern int num_children;
151
152struct tstream_context;
153struct smbd_smb2_request;
154struct smbd_smb2_session;
155struct smbd_smb2_tcon;
156
157DATA_BLOB negprot_spnego(void);
158
159NTSTATUS smb2_signing_sign_pdu(DATA_BLOB session_key,
160 struct iovec *vector,
161 int count);
162NTSTATUS smb2_signing_check_pdu(DATA_BLOB session_key,
163 const struct iovec *vector,
164 int count);
165
166struct smbd_lock_element {
167 uint32_t smbpid;
168 enum brl_type brltype;
169 uint64_t offset;
170 uint64_t count;
171};
172
173NTSTATUS smbd_do_locking(struct smb_request *req,
174 files_struct *fsp,
175 uint8_t type,
176 int32_t timeout,
177 uint16_t num_ulocks,
178 struct smbd_lock_element *ulocks,
179 uint16_t num_locks,
180 struct smbd_lock_element *locks,
181 bool *async);
182
183NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
184 TALLOC_CTX *mem_ctx,
185 uint16_t info_level,
186 files_struct *fsp,
187 struct smb_filename *smb_fname,
188 bool delete_pending,
189 struct timespec write_time_ts,
190 bool ms_dfs_link,
191 struct ea_list *ea_list,
192 int lock_data_count,
193 char *lock_data,
194 uint16_t flags2,
195 unsigned int max_data_bytes,
196 char **ppdata,
197 unsigned int *pdata_size);
198
199NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
200 struct smb_request *req,
201 TALLOC_CTX *mem_ctx,
202 uint16_t info_level,
203 files_struct *fsp,
204 struct smb_filename *smb_fname,
205 char **ppdata, int total_data,
206 int *ret_data_size);
207
208NTSTATUS smbd_do_qfsinfo(connection_struct *conn,
209 TALLOC_CTX *mem_ctx,
210 uint16_t info_level,
211 uint16_t flags2,
212 unsigned int max_data_bytes,
213 char **ppdata,
214 int *ret_data_len);
215
216bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
217 struct dptr_struct *dirptr,
218 const char *mask,
219 uint32_t dirtype,
220 bool dont_descend,
221 bool ask_sharemode,
222 bool (*match_fn)(TALLOC_CTX *ctx,
223 void *private_data,
224 const char *dname,
225 const char *mask,
226 char **_fname),
227 bool (*mode_fn)(TALLOC_CTX *ctx,
228 void *private_data,
229 struct smb_filename *smb_fname,
230 uint32_t *_mode),
231 void *private_data,
232 char **_fname,
233 struct smb_filename **_smb_fname,
234 uint32_t *_mode,
235 long *_prev_offset);
236
237bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
238 connection_struct *conn,
239 struct dptr_struct *dirptr,
240 uint16 flags2,
241 const char *path_mask,
242 uint32 dirtype,
243 int info_level,
244 int requires_resume_key,
245 bool dont_descend,
246 bool ask_sharemode,
247 uint8_t align,
248 bool do_pad,
249 char **ppdata,
250 char *base_data,
251 char *end_data,
252 int space_remaining,
253 bool *out_of_space,
254 bool *got_exact_match,
255 int *_last_entry_off,
256 struct ea_list *name_list);
257
258NTSTATUS smbd_check_open_rights(struct connection_struct *conn,
259 const struct smb_filename *smb_fname,
260 uint32_t access_mask,
261 uint32_t *access_granted);
262
263void smbd_notify_cancel_by_smbreq(struct smbd_server_connection *sconn,
264 const struct smb_request *smbreq);
265
266void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn,
267 const char *reason,
268 const char *location);
269#define smbd_server_connection_terminate(sconn, reason) \
270 smbd_server_connection_terminate_ex(sconn, reason, __location__)
271
272bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
273
274void reply_smb2002(struct smb_request *req, uint16_t choice);
275void smbd_smb2_first_negprot(struct smbd_server_connection *sconn,
276 const uint8_t *inbuf, size_t size);
277
278NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
279 NTSTATUS status,
280 DATA_BLOB *info,
281 const char *location);
282#define smbd_smb2_request_error(req, status) \
283 smbd_smb2_request_error_ex(req, status, NULL, __location__)
284NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
285 NTSTATUS status,
286 DATA_BLOB body, DATA_BLOB *dyn,
287 const char *location);
288#define smbd_smb2_request_done(req, body, dyn) \
289 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
290
291NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
292 uint64_t file_id_persistent,
293 uint64_t file_id_volatile,
294 uint8_t oplock_level);
295
296NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
297 struct tevent_req *subreq);
298
299NTSTATUS smbd_smb2_request_check_session(struct smbd_smb2_request *req);
300NTSTATUS smbd_smb2_request_check_tcon(struct smbd_smb2_request *req);
301
302struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
303
304NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
305NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
306NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
307NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
308NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
309NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
310NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
311NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
312NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
313NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
314NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
315NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
316NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
317NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
318NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
319NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
320NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
321NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
322
323struct smbd_smb2_request {
324 struct smbd_smb2_request *prev, *next;
325
326 TALLOC_CTX *mem_pool;
327 struct smbd_smb2_request **parent;
328
329 struct smbd_server_connection *sconn;
330
331 /* the session the request operates on, maybe NULL */
332 struct smbd_smb2_session *session;
333
334 /* the tcon the request operates on, maybe NULL */
335 struct smbd_smb2_tcon *tcon;
336
337 int current_idx;
338 bool do_signing;
339
340 struct files_struct *compat_chain_fsp;
341
342 NTSTATUS next_status;
343
344 /*
345 * The sub request for async backend calls.
346 * This is used for SMB2 Cancel.
347 */
348 struct tevent_req *subreq;
349
350 struct {
351 /* the NBT header is not allocated */
352 uint8_t nbt_hdr[4];
353 /*
354 * vector[0] NBT
355 * .
356 * vector[1] SMB2
357 * vector[2] fixed body
358 * vector[3] dynamic body
359 * .
360 * .
361 * .
362 * vector[4] SMB2
363 * vector[5] fixed body
364 * vector[6] dynamic body
365 * .
366 * .
367 * .
368 */
369 struct iovec *vector;
370 int vector_count;
371 } in;
372 struct {
373 /* the NBT header is not allocated */
374 uint8_t nbt_hdr[4];
375 /*
376 * vector[0] NBT
377 * .
378 * vector[1] SMB2
379 * vector[2] fixed body
380 * vector[3] dynamic body
381 * .
382 * .
383 * .
384 * vector[4] SMB2
385 * vector[5] fixed body
386 * vector[6] dynamic body
387 * .
388 * .
389 * .
390 */
391 struct iovec *vector;
392 int vector_count;
393 } out;
394};
395
396struct smbd_server_connection;
397
398struct smbd_smb2_session {
399 struct smbd_smb2_session *prev, *next;
400 struct smbd_server_connection *sconn;
401 NTSTATUS status;
402 uint64_t vuid;
403 AUTH_NTLMSSP_STATE *auth_ntlmssp_state;
404 struct auth_serversupplied_info *server_info;
405 DATA_BLOB session_key;
406 bool do_signing;
407
408 user_struct *compat_vuser;
409
410 struct {
411 /* an id tree used to allocate tids */
412 struct idr_context *idtree;
413
414 /* this is the limit of tid values for this connection */
415 uint32_t limit;
416
417 struct smbd_smb2_tcon *list;
418 } tcons;
419};
420
421struct smbd_smb2_tcon {
422 struct smbd_smb2_tcon *prev, *next;
423 struct smbd_smb2_session *session;
424 uint32_t tid;
425 int snum;
426 connection_struct *compat_conn;
427};
428
429struct pending_auth_data;
430
431struct smbd_server_connection {
432 struct {
433 bool got_session;
434 } nbt;
435 bool allow_smb2;
436 struct {
437 struct fd_event *fde;
438 uint64_t num_requests;
439 struct {
440 bool encrypted_passwords;
441 bool spnego;
442 struct auth_context *auth_context;
443 bool done;
444 /*
445 * Size of the data we can receive. Set by us.
446 * Can be modified by the max xmit parameter.
447 */
448 int max_recv;
449 } negprot;
450
451 struct {
452 bool done_sesssetup;
453 /*
454 * Size of data we can send to client. Set
455 * by the client for all protocols above CORE.
456 * Set by us for CORE protocol.
457 */
458 int max_send;
459 uint16_t last_session_tag;
460
461 /* users from session setup */
462 char *session_userlist;
463 /* workgroup from session setup. */
464 char *session_workgroup;
465 /*
466 * this holds info on user ids that are already
467 * validated for this VC
468 */
469 user_struct *validated_users;
470 uint16_t next_vuid;
471 int num_validated_vuids;
472#ifdef HAVE_NETGROUP
473 char *my_yp_domain;
474#endif
475 } sessions;
476 struct {
477 connection_struct *Connections;
478 /* number of open connections */
479 struct bitmap *bmap;
480 int num_open;
481 } tcons;
482 struct smb_signing_state *signing_state;
483 /* List to store partial SPNEGO auth fragments. */
484 struct pending_auth_data *pd_list;
485
486 struct notify_mid_map *notify_mid_maps;
487
488 struct {
489 struct bitmap *dptr_bmap;
490 struct dptr_struct *dirptrs;
491 int dirhandles_open;
492 } searches;
493 } smb1;
494 struct {
495 struct tevent_context *event_ctx;
496 struct tevent_queue *recv_queue;
497 struct tevent_queue *send_queue;
498 struct tstream_context *stream;
499 struct {
500 /* an id tree used to allocate vuids */
501 /* this holds info on session vuids that are already
502 * validated for this VC */
503 struct idr_context *idtree;
504
505 /* this is the limit of vuid values for this connection */
506 uint64_t limit;
507
508 struct smbd_smb2_session *list;
509 } sessions;
510 struct smbd_smb2_request *requests;
511 } smb2;
512};
513
514extern struct smbd_server_connection *smbd_server_conn;
515
516void smbd_init_globals(void);
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