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/>.
21 #include "system/select.h"
22 #include "librpc/gen_ndr/smbXsrv.h"
24 extern int aio_pending_size;
25 extern int outstanding_aio_calls;
28 struct smbd_dmapi_context;
29 extern struct smbd_dmapi_context *dmapi_ctx;
32 extern bool dfree_broken;
34 /* how many write cache buffers have been allocated */
35 extern unsigned int allocated_write_caches;
37 /* A singleton cache to speed up searching by dev/inode. */
38 struct fsp_singleton_cache {
43 extern const struct mangle_fns *mangle_fns;
45 extern unsigned char *chartest;
47 extern struct tdb_context *tdb_mangled_cache;
50 this determines how many characters are used from the original filename
51 in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
52 The largest possible value is 6.
54 extern unsigned mangle_prefix;
58 extern bool logged_ioctl_message;
62 extern time_t last_smb_conf_reload_time;
63 extern time_t last_printer_reload_time;
64 extern pid_t background_lpq_updater_pid;
66 /****************************************************************************
67 structure to hold a linked list of queued messages.
69 ****************************************************************************/
70 extern uint32_t common_flags2;
72 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
73 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
76 struct security_unix_token ut;
77 struct security_token *token;
79 /* A stack of security contexts. We include the current context as being
80 the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
81 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
82 extern int sec_ctx_stack_ndx;
83 extern bool become_uid_done;
84 extern bool become_gid_done;
86 extern connection_struct *last_conn;
87 extern uint16_t last_flags;
89 extern uint32_t global_client_caps;
91 extern uint16_t fnf_handle;
94 connection_struct *conn;
97 /* A stack of current_user connection contexts. */
98 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
99 extern int conn_ctx_stack_ndx;
101 struct vfs_init_function_entry;
102 extern struct vfs_init_function_entry *backends;
103 extern char *sparse_buf;
104 extern char *LastDir;
106 struct smbd_parent_context;
107 extern struct smbd_parent_context *am_parent;
108 extern struct memcache *smbd_memcache_ctx;
109 extern bool exit_firsttime;
111 struct tstream_context;
112 struct smbd_smb2_request;
114 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbd_server_connection *sconn);
116 void smbd_lock_socket(struct smbd_server_connection *sconn);
117 void smbd_unlock_socket(struct smbd_server_connection *sconn);
119 NTSTATUS smbd_do_locking(struct smb_request *req,
124 struct smbd_lock_element *ulocks,
126 struct smbd_lock_element *locks,
129 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
133 struct smb_filename *smb_fname,
135 struct timespec write_time_ts,
136 struct ea_list *ea_list,
140 unsigned int max_data_bytes,
141 size_t *fixed_portion,
143 unsigned int *pdata_size);
145 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
146 struct smb_request *req,
150 struct smb_filename *smb_fname,
151 char **ppdata, int total_data,
154 NTSTATUS smbd_do_qfsinfo(connection_struct *conn,
158 unsigned int max_data_bytes,
159 size_t *fixed_portion,
160 struct smb_filename *smb_fname,
164 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
165 struct dptr_struct *dirptr,
170 bool (*match_fn)(TALLOC_CTX *ctx,
175 bool (*mode_fn)(TALLOC_CTX *ctx,
177 struct smb_filename *smb_fname,
181 struct smb_filename **_smb_fname,
185 bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
186 connection_struct *conn,
187 struct dptr_struct *dirptr,
189 const char *path_mask,
192 int requires_resume_key,
202 bool *got_exact_match,
203 int *_last_entry_off,
204 struct ea_list *name_list);
206 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
207 const struct smb_filename *smb_fname,
209 uint32_t access_mask,
210 uint32_t *access_mask_out);
212 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
214 void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn,
216 const char *location);
217 #define smbd_server_connection_terminate(sconn, reason) \
218 smbd_server_connection_terminate_ex(sconn, reason, __location__)
220 const char *smb2_opcode_name(uint16_t opcode);
221 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
223 void reply_smb2002(struct smb_request *req, uint16_t choice);
224 void reply_smb20ff(struct smb_request *req, uint16_t choice);
225 void smbd_smb2_first_negprot(struct smbd_server_connection *sconn,
226 uint8_t *inbuf, size_t size);
228 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
230 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
233 const char *location);
234 #define smbd_smb2_request_error(req, status) \
235 smbd_smb2_request_error_ex(req, status, NULL, __location__)
236 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
238 DATA_BLOB body, DATA_BLOB *dyn,
239 const char *location);
240 #define smbd_smb2_request_done(req, body, dyn) \
241 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
243 NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
244 struct smbXsrv_session *session,
245 struct smbXsrv_tcon *tcon,
246 struct smbXsrv_open *op,
247 uint8_t oplock_level);
249 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
250 struct tevent_req *subreq,
251 uint32_t defer_time);
253 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
254 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
255 void remove_smb2_chained_fsp(files_struct *fsp);
257 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
258 uint32_t data_length);
260 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
261 size_t expected_body_size);
263 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
264 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
265 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
266 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
267 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
268 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
269 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
270 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
271 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
272 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
273 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
274 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
275 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
277 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
278 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
279 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
280 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
281 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
282 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
283 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
284 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
285 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
286 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
287 struct tevent_immediate *im,
290 /* SMB1 -> SMB2 glue. */
291 void send_break_message_smb2(files_struct *fsp, int level);
292 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
293 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
294 struct smb_request *req,
299 enum brl_type lock_type,
300 enum brl_flavour lock_flav,
303 uint64_t blocking_smblctx);
304 void process_blocking_lock_queue_smb2(
305 struct smbd_server_connection *sconn, struct timeval tv_curr);
306 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
307 struct byte_range_lock *br_lck,
308 enum file_close_type close_type);
309 /* From smbd/smb2_create.c */
310 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
311 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
312 struct timeval *p_request_time,
314 bool open_was_deferred_smb2(struct smbd_server_connection *sconn,
316 void remove_deferred_open_message_smb2(
317 struct smbd_server_connection *sconn, uint64_t mid);
318 bool schedule_deferred_open_message_smb2(
319 struct smbd_server_connection *sconn, uint64_t mid);
320 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
321 struct timeval request_time,
322 struct timeval timeout,
327 struct smbXsrv_connection {
328 struct smbd_server_connection *sconn;
330 const struct tsocket_address *local_address;
331 const struct tsocket_address *remote_address;
332 const char *remote_hostname;
334 struct tevent_context *ev_ctx;
335 struct messaging_context *msg_ctx;
337 enum protocol_types protocol;
341 uint32_t capabilities;
343 uint16_t security_mode;
344 uint16_t num_dialects;
348 uint32_t capabilities;
350 uint16_t security_mode;
358 struct msg_state *msg_state;
361 * Link into libasys for asynchronous operations
363 struct asys_context *asys_ctx;
364 struct tevent_fd *asys_fde;
366 uint64_t smbd_idle_profstamp;
369 * this session_table is used for SMB1 and SMB2,
371 struct smbXsrv_session_table *session_table;
372 uint64_t last_session_id;
374 * this tcon_table is only used for SMB1.
376 struct smbXsrv_tcon_table *tcon_table;
378 * this open_table is used for SMB1 and SMB2,
379 * because we have a global sconn->real_max_open_files
382 struct smbXsrv_open_table *open_table;
385 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
386 uint32_t smbXsrv_version_global_current(void);
388 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
389 enum protocol_types protocol);
391 NTSTATUS smbXsrv_session_global_init(void);
392 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
394 struct smbXsrv_session **_session);
395 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
396 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
397 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
398 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
399 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
400 uint16_t vuid, NTTIME now,
401 struct smbXsrv_session **session);
402 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
403 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
404 uint64_t session_id, NTTIME now,
405 struct smbXsrv_session **session);
406 struct smbXsrv_session_global0;
407 NTSTATUS smbXsrv_session_global_traverse(
408 int (*fn)(struct smbXsrv_session_global0 *, void *),
410 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
411 struct tevent_context *ev,
412 struct smbXsrv_connection *conn,
413 struct auth_session_info *session_info,
414 uint64_t previous_session_id,
415 uint64_t current_session_id);
416 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
418 NTSTATUS smbXsrv_tcon_global_init(void);
419 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
420 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
421 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
422 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
424 struct smbXsrv_tcon **_tcon);
425 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
426 uint16_t tree_id, NTTIME now,
427 struct smbXsrv_tcon **tcon);
428 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
429 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
430 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
432 struct smbXsrv_tcon **_tcon);
433 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
434 uint32_t tree_id, NTTIME now,
435 struct smbXsrv_tcon **tcon);
436 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
437 struct smbXsrv_tcon_global0;
438 NTSTATUS smbXsrv_tcon_global_traverse(
439 int (*fn)(struct smbXsrv_tcon_global0 *, void *),
442 NTSTATUS smbXsrv_open_global_init(void);
443 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
444 struct auth_session_info *session_info,
446 struct smbXsrv_open **_open);
447 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
448 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
449 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
450 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
451 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
452 uint16_t fnum, NTTIME now,
453 struct smbXsrv_open **_open);
454 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
455 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
456 uint64_t persistent_id,
457 uint64_t volatile_id,
459 struct smbXsrv_open **_open);
460 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
461 struct auth_session_info *session_info,
462 uint64_t persistent_id,
463 const struct GUID *create_guid,
465 struct smbXsrv_open **_open);
466 struct smbXsrv_open_global0;
467 NTSTATUS smbXsrv_open_global_traverse(
468 int (*fn)(struct smbXsrv_open_global0 *, void *),
471 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
473 struct smbd_smb2_send_queue {
474 struct smbd_smb2_send_queue *prev, *next;
476 DATA_BLOB *sendfile_header;
477 struct iovec *vector;
483 struct smbd_smb2_request {
484 struct smbd_smb2_request *prev, *next;
486 struct smbd_server_connection *sconn;
488 struct smbd_smb2_send_queue queue_entry;
490 /* the session the request operates on, maybe NULL */
491 struct smbXsrv_session *session;
492 uint64_t last_session_id;
494 /* the tcon the request operates on, maybe NULL */
495 struct smbXsrv_tcon *tcon;
501 struct tevent_timer *async_te;
502 bool compound_related;
505 * the encryption key for the whole
510 * the signing key for the last
511 * request/response of a compound chain
515 struct timeval request_time;
517 /* fake smb1 request. */
518 struct smb_request *smb1req;
519 struct files_struct *compat_chain_fsp;
522 * The sub request for async backend calls.
523 * This is used for SMB2 Cancel.
525 struct tevent_req *subreq;
527 #define SMBD_SMB2_TF_IOV_OFS 0
528 #define SMBD_SMB2_HDR_IOV_OFS 1
529 #define SMBD_SMB2_BODY_IOV_OFS 2
530 #define SMBD_SMB2_DYN_IOV_OFS 3
532 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
534 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
535 (&req->dir.vector[(idx)+(ofs)])
537 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
538 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
539 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
540 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
541 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
542 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
543 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
544 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
546 #define SMBD_SMB2_IN_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
547 #define SMBD_SMB2_IN_TF_PTR(req) (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
548 #define SMBD_SMB2_IN_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
549 #define SMBD_SMB2_IN_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
550 #define SMBD_SMB2_IN_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
551 #define SMBD_SMB2_IN_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
552 #define SMBD_SMB2_IN_BODY_LEN(req) (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
553 #define SMBD_SMB2_IN_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
554 #define SMBD_SMB2_IN_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
555 #define SMBD_SMB2_IN_DYN_LEN(req) (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
557 #define SMBD_SMB2_OUT_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
558 #define SMBD_SMB2_OUT_TF_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
559 #define SMBD_SMB2_OUT_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
560 #define SMBD_SMB2_OUT_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
561 #define SMBD_SMB2_OUT_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
562 #define SMBD_SMB2_OUT_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
563 #define SMBD_SMB2_OUT_BODY_LEN(req) (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
564 #define SMBD_SMB2_OUT_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
565 #define SMBD_SMB2_OUT_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
566 #define SMBD_SMB2_OUT_DYN_LEN(req) (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
568 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
572 * vector[0] TRANSPORT HEADER (empty)
574 * vector[1] SMB2_TRANSFORM (optional)
576 * vector[3] fixed body
577 * vector[4] dynamic body
581 * vector[5] SMB2_TRANSFORM (optional)
583 * vector[7] fixed body
584 * vector[8] dynamic body
589 struct iovec *vector;
591 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
594 /* the NBT header is not allocated */
597 * vector[0] TRANSPORT HEADER
599 * vector[1] SMB2_TRANSFORM (optional)
601 * vector[3] fixed body
602 * vector[4] dynamic body
606 * vector[5] SMB2_TRANSFORM (empty)
608 * vector[7] fixed body
609 * vector[8] dynamic body
614 struct iovec *vector;
616 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
617 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
618 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
623 struct smbd_server_connection;
626 struct pending_message_list;
627 struct pending_auth_data;
630 struct user_struct *next, *prev;
631 uint64_t vuid; /* Tag for this entry. */
633 char *session_keystr; /* used by utmp and pam session code.
637 struct auth_session_info *session_info;
639 struct smbXsrv_session *session;
642 struct smbd_server_connection {
645 const struct tsocket_address *local_address;
646 const struct tsocket_address *remote_address;
647 const char *remote_hostname;
648 struct tevent_context *ev_ctx;
649 struct messaging_context *msg_ctx;
650 struct sys_notify_context *sys_notify_ctx;
651 struct notify_context *notify_ctx;
659 struct user_struct *users;
661 size_t num_connections;
662 struct connection_struct *connections;
665 struct files_struct *files;
667 int real_max_open_files;
668 struct fsp_singleton_cache fsp_fi_cache;
670 struct pending_message_list *deferred_open_queue;
673 /* open directory handles. */
675 struct bitmap *dptr_bmap;
676 struct dptr_struct *dirptrs;
680 uint64_t num_requests;
682 /* Current number of oplocks we have outstanding. */
684 int32_t exclusive_open;
685 int32_t level_II_open;
686 struct kernel_oplocks *kernel_ops;
690 struct tevent_fd *fde;
694 * fd for the fcntl lock mutexing access to our sock
699 * fd for the trusted pipe from
705 * fde for the trusted_fd
707 struct tevent_fd *trusted_fde;
710 * Reference count for the fcntl lock to
711 * allow recursive locks.
717 bool encrypted_passwords;
719 struct auth4_context *auth_context;
722 * Size of the data we can receive. Set by us.
723 * Can be modified by the max xmit parameter.
729 uint16_t client_major;
730 uint16_t client_minor;
731 uint32_t client_cap_low;
732 uint32_t client_cap_high;
738 * Size of data we can send to client. Set
739 * by the client for all protocols above CORE.
740 * Set by us for CORE protocol.
744 struct smb_signing_state *signing_state;
746 struct notify_mid_map *notify_mid_maps;
749 /* dlink list we store pending lock records on. */
750 struct blocking_lock_record *blocking_lock_queue;
751 /* dlink list we move cancelled lock records onto. */
752 struct blocking_lock_record *blocking_lock_cancelled_queue;
754 /* The event that makes us process our blocking lock queue */
755 struct tevent_timer *brl_timeout;
757 bool blocking_lock_unlock_state;
758 bool blocking_lock_cancel_state;
762 struct smbd_smb2_request_read_state {
763 struct smbd_smb2_request *req;
765 uint8_t nbt[NBT_HDR_SIZE];
769 bool doing_receivefile;
770 size_t min_recv_size;
774 } request_read_state;
775 struct smbd_smb2_send_queue *send_queue;
776 size_t send_queue_len;
777 struct tevent_fd *fde;
780 /* The event that makes us process our blocking lock queue */
781 struct tevent_timer *brl_timeout;
782 bool blocking_lock_unlock_state;
784 struct smbd_smb2_request *requests;
786 * seqnum_low is the lowest sequence number
791 * seqnum_range is the range of credits we have
792 * granted from the sequence windows starting
795 * This gets incremented when new credits are
796 * granted and gets decremented when the
797 * lowest sequence number is consumed
798 * (when seqnum_low gets incremented).
800 uint16_t seqnum_range;
802 * credits_grantedThe number of credits we have currently granted
805 * This gets incremented when new credits are
806 * granted and gets decremented when any credit
809 * Note: the decrementing is different compared
812 uint16_t credits_granted;
814 * The maximum number of credits we will ever
815 * grant to the client.
817 * Typically we will only grant 1/16th of
820 * This is the "server max credits" parameter.
822 uint16_t max_credits;
824 * a bitmap of size max_credits
826 struct bitmap *credits_bitmap;
827 bool supports_multicredit;
833 struct smbXsrv_connection *conn;
836 extern struct smbXsrv_connection *global_smbXsrv_connection;
838 void smbd_init_globals(void);