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 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
231 const char *location);
232 #define smbd_smb2_request_error(req, status) \
233 smbd_smb2_request_error_ex(req, status, NULL, __location__)
234 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
236 DATA_BLOB body, DATA_BLOB *dyn,
237 const char *location);
238 #define smbd_smb2_request_done(req, body, dyn) \
239 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
241 NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
242 struct smbXsrv_session *session,
243 struct smbXsrv_tcon *tcon,
244 struct smbXsrv_open *op,
245 uint8_t oplock_level);
247 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
248 struct tevent_req *subreq,
249 uint32_t defer_time);
251 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
252 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
253 void remove_smb2_chained_fsp(files_struct *fsp);
255 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
256 uint32_t data_length);
258 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
259 size_t expected_body_size);
261 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
262 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
263 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
264 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
265 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
266 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
267 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
268 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
269 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
270 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
271 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
272 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
273 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
275 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
276 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
277 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
278 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
279 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
280 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
281 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
282 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
283 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
284 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
285 struct tevent_immediate *im,
288 /* SMB1 -> SMB2 glue. */
289 void send_break_message_smb2(files_struct *fsp, int level);
290 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
291 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
292 struct smb_request *req,
297 enum brl_type lock_type,
298 enum brl_flavour lock_flav,
301 uint64_t blocking_smblctx);
302 void process_blocking_lock_queue_smb2(
303 struct smbd_server_connection *sconn, struct timeval tv_curr);
304 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
305 struct byte_range_lock *br_lck,
306 enum file_close_type close_type);
307 /* From smbd/smb2_create.c */
308 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
309 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
310 struct timeval *p_request_time,
312 bool open_was_deferred_smb2(struct smbd_server_connection *sconn,
314 void remove_deferred_open_message_smb2(
315 struct smbd_server_connection *sconn, uint64_t mid);
316 bool schedule_deferred_open_message_smb2(
317 struct smbd_server_connection *sconn, uint64_t mid);
318 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
319 struct timeval request_time,
320 struct timeval timeout,
325 struct smbXsrv_connection {
326 struct smbd_server_connection *sconn;
328 const struct tsocket_address *local_address;
329 const struct tsocket_address *remote_address;
330 const char *remote_hostname;
332 struct tevent_context *ev_ctx;
333 struct messaging_context *msg_ctx;
335 enum protocol_types protocol;
339 uint32_t capabilities;
341 uint16_t security_mode;
342 uint16_t num_dialects;
346 uint32_t capabilities;
348 uint16_t security_mode;
356 struct msg_state *msg_state;
359 * Link into libasys for asynchronous operations
361 struct asys_context *asys_ctx;
362 struct tevent_fd *asys_fde;
364 uint64_t smbd_idle_profstamp;
367 * this session_table is used for SMB1 and SMB2,
369 struct smbXsrv_session_table *session_table;
371 * this tcon_table is only used for SMB1.
373 struct smbXsrv_tcon_table *tcon_table;
375 * this open_table is used for SMB1 and SMB2,
376 * because we have a global sconn->real_max_open_files
379 struct smbXsrv_open_table *open_table;
382 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
383 uint32_t smbXsrv_version_global_current(void);
385 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
386 enum protocol_types protocol);
388 NTSTATUS smbXsrv_session_global_init(void);
389 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
391 struct smbXsrv_session **_session);
392 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
393 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
394 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
395 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
396 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
397 uint16_t vuid, NTTIME now,
398 struct smbXsrv_session **session);
399 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
400 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
401 uint64_t session_id, NTTIME now,
402 struct smbXsrv_session **session);
403 struct smbXsrv_session_global0;
404 NTSTATUS smbXsrv_session_global_traverse(
405 int (*fn)(struct smbXsrv_session_global0 *, void *),
407 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
408 struct tevent_context *ev,
409 struct smbXsrv_connection *conn,
410 struct auth_session_info *session_info,
411 uint64_t previous_session_id,
412 uint64_t current_session_id);
413 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
415 NTSTATUS smbXsrv_tcon_global_init(void);
416 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
417 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
418 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
419 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
421 struct smbXsrv_tcon **_tcon);
422 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
423 uint16_t tree_id, NTTIME now,
424 struct smbXsrv_tcon **tcon);
425 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
426 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
427 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
429 struct smbXsrv_tcon **_tcon);
430 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
431 uint32_t tree_id, NTTIME now,
432 struct smbXsrv_tcon **tcon);
433 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
434 struct smbXsrv_tcon_global0;
435 NTSTATUS smbXsrv_tcon_global_traverse(
436 int (*fn)(struct smbXsrv_tcon_global0 *, void *),
439 NTSTATUS smbXsrv_open_global_init(void);
440 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
441 struct auth_session_info *session_info,
443 struct smbXsrv_open **_open);
444 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
445 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
446 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
447 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
448 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
449 uint16_t fnum, NTTIME now,
450 struct smbXsrv_open **_open);
451 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
452 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
453 uint64_t persistent_id,
454 uint64_t volatile_id,
456 struct smbXsrv_open **_open);
457 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
458 struct auth_session_info *session_info,
459 uint64_t persistent_id,
460 const struct GUID *create_guid,
462 struct smbXsrv_open **_open);
463 struct smbXsrv_open_global0;
464 NTSTATUS smbXsrv_open_global_traverse(
465 int (*fn)(struct smbXsrv_open_global0 *, void *),
468 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
470 struct smbd_smb2_send_queue {
471 struct smbd_smb2_send_queue *prev, *next;
473 DATA_BLOB *sendfile_header;
474 struct iovec *vector;
480 struct smbd_smb2_request {
481 struct smbd_smb2_request *prev, *next;
483 struct smbd_server_connection *sconn;
485 struct smbd_smb2_send_queue queue_entry;
487 /* the session the request operates on, maybe NULL */
488 struct smbXsrv_session *session;
489 uint64_t last_session_id;
491 /* the tcon the request operates on, maybe NULL */
492 struct smbXsrv_tcon *tcon;
498 struct tevent_timer *async_te;
499 bool compound_related;
502 * the encryption key for the whole
507 * the signing key for the last
508 * request/response of a compound chain
512 struct timeval request_time;
514 /* fake smb1 request. */
515 struct smb_request *smb1req;
516 struct files_struct *compat_chain_fsp;
519 * The sub request for async backend calls.
520 * This is used for SMB2 Cancel.
522 struct tevent_req *subreq;
524 #define SMBD_SMB2_TF_IOV_OFS 0
525 #define SMBD_SMB2_HDR_IOV_OFS 1
526 #define SMBD_SMB2_BODY_IOV_OFS 2
527 #define SMBD_SMB2_DYN_IOV_OFS 3
529 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
531 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
532 (&req->dir.vector[(idx)+(ofs)])
534 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
535 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
536 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
537 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
538 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
539 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
540 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
541 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
543 #define SMBD_SMB2_IN_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
544 #define SMBD_SMB2_IN_TF_PTR(req) (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
545 #define SMBD_SMB2_IN_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
546 #define SMBD_SMB2_IN_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
547 #define SMBD_SMB2_IN_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
548 #define SMBD_SMB2_IN_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
549 #define SMBD_SMB2_IN_BODY_LEN(req) (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
550 #define SMBD_SMB2_IN_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
551 #define SMBD_SMB2_IN_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
552 #define SMBD_SMB2_IN_DYN_LEN(req) (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
554 #define SMBD_SMB2_OUT_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
555 #define SMBD_SMB2_OUT_TF_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
556 #define SMBD_SMB2_OUT_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
557 #define SMBD_SMB2_OUT_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
558 #define SMBD_SMB2_OUT_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
559 #define SMBD_SMB2_OUT_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
560 #define SMBD_SMB2_OUT_BODY_LEN(req) (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
561 #define SMBD_SMB2_OUT_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
562 #define SMBD_SMB2_OUT_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
563 #define SMBD_SMB2_OUT_DYN_LEN(req) (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
565 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
569 * vector[0] TRANSPORT HEADER (empty)
571 * vector[1] SMB2_TRANSFORM (optional)
573 * vector[3] fixed body
574 * vector[4] dynamic body
578 * vector[5] SMB2_TRANSFORM (optional)
580 * vector[7] fixed body
581 * vector[8] dynamic body
586 struct iovec *vector;
590 /* the NBT header is not allocated */
593 * vector[0] TRANSPORT HEADER
595 * vector[1] SMB2_TRANSFORM (optional)
597 * vector[3] fixed body
598 * vector[4] dynamic body
602 * vector[5] SMB2_TRANSFORM (empty)
604 * vector[7] fixed body
605 * vector[8] dynamic body
610 struct iovec *vector;
615 struct smbd_server_connection;
618 struct pending_message_list;
619 struct pending_auth_data;
622 struct user_struct *next, *prev;
623 uint64_t vuid; /* Tag for this entry. */
625 char *session_keystr; /* used by utmp and pam session code.
629 struct auth_session_info *session_info;
631 struct smbXsrv_session *session;
634 struct smbd_server_connection {
636 const struct tsocket_address *local_address;
637 const struct tsocket_address *remote_address;
638 const char *remote_hostname;
639 struct tevent_context *ev_ctx;
640 struct messaging_context *msg_ctx;
641 struct sys_notify_context *sys_notify_ctx;
642 struct notify_context *notify_ctx;
650 struct user_struct *users;
652 size_t num_connections;
653 struct connection_struct *connections;
656 struct files_struct *files;
658 int real_max_open_files;
659 struct fsp_singleton_cache fsp_fi_cache;
661 struct pending_message_list *deferred_open_queue;
664 /* open directory handles. */
666 struct bitmap *dptr_bmap;
667 struct dptr_struct *dirptrs;
671 uint64_t num_requests;
673 /* Current number of oplocks we have outstanding. */
675 int32_t exclusive_open;
676 int32_t level_II_open;
677 struct kernel_oplocks *kernel_ops;
681 struct tevent_fd *fde;
685 * fd for the fcntl lock mutexing access to our sock
690 * fd for the trusted pipe from
696 * fde for the trusted_fd
698 struct tevent_fd *trusted_fde;
701 * Reference count for the fcntl lock to
702 * allow recursive locks.
708 bool encrypted_passwords;
710 struct auth4_context *auth_context;
713 * Size of the data we can receive. Set by us.
714 * Can be modified by the max xmit parameter.
720 uint16_t client_major;
721 uint16_t client_minor;
722 uint32_t client_cap_low;
723 uint32_t client_cap_high;
729 * Size of data we can send to client. Set
730 * by the client for all protocols above CORE.
731 * Set by us for CORE protocol.
734 uint64_t last_session_tag;
736 struct smb_signing_state *signing_state;
738 struct notify_mid_map *notify_mid_maps;
741 /* dlink list we store pending lock records on. */
742 struct blocking_lock_record *blocking_lock_queue;
743 /* dlink list we move cancelled lock records onto. */
744 struct blocking_lock_record *blocking_lock_cancelled_queue;
746 /* The event that makes us process our blocking lock queue */
747 struct tevent_timer *brl_timeout;
749 bool blocking_lock_unlock_state;
750 bool blocking_lock_cancel_state;
754 struct smbd_smb2_request_read_state {
755 struct smbd_smb2_request *req;
757 uint8_t nbt[NBT_HDR_SIZE];
761 bool doing_receivefile;
762 size_t min_recv_size;
765 } request_read_state;
766 struct smbd_smb2_send_queue *send_queue;
767 size_t send_queue_len;
768 struct tevent_fd *fde;
771 /* The event that makes us process our blocking lock queue */
772 struct tevent_timer *brl_timeout;
773 bool blocking_lock_unlock_state;
775 struct smbd_smb2_request *requests;
777 * seqnum_low is the lowest sequence number
782 * seqnum_range is the range of credits we have
783 * granted from the sequence windows starting
786 * This gets incremented when new credits are
787 * granted and gets decremented when the
788 * lowest sequence number is consumed
789 * (when seqnum_low gets incremented).
791 uint16_t seqnum_range;
793 * credits_grantedThe number of credits we have currently granted
796 * This gets incremented when new credits are
797 * granted and gets decremented when any credit
800 * Note: the decrementing is different compared
803 uint16_t credits_granted;
805 * The maximum number of credits we will ever
806 * grant to the client.
808 * Typically we will only grant 1/16th of
811 * This is the "server max credits" parameter.
813 uint16_t max_credits;
815 * a bitmap of size max_credits
817 struct bitmap *credits_bitmap;
818 bool supports_multicredit;
824 struct smbXsrv_connection *conn;
827 extern struct smbXsrv_connection *global_smbXsrv_connection;
829 void smbd_init_globals(void);