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,
142 unsigned int *pdata_size);
144 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
145 struct smb_request *req,
149 struct smb_filename *smb_fname,
150 char **ppdata, int total_data,
153 NTSTATUS smbd_do_qfsinfo(connection_struct *conn,
157 unsigned int max_data_bytes,
161 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
162 struct dptr_struct *dirptr,
167 bool (*match_fn)(TALLOC_CTX *ctx,
172 bool (*mode_fn)(TALLOC_CTX *ctx,
174 struct smb_filename *smb_fname,
178 struct smb_filename **_smb_fname,
182 bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
183 connection_struct *conn,
184 struct dptr_struct *dirptr,
186 const char *path_mask,
189 int requires_resume_key,
199 bool *got_exact_match,
200 int *_last_entry_off,
201 struct ea_list *name_list);
203 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
204 const struct smb_filename *smb_fname,
205 uint32_t access_mask,
206 uint32_t *access_mask_out);
208 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
210 void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn,
212 const char *location);
213 #define smbd_server_connection_terminate(sconn, reason) \
214 smbd_server_connection_terminate_ex(sconn, reason, __location__)
216 const char *smb2_opcode_name(uint16_t opcode);
217 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
219 void reply_smb2002(struct smb_request *req, uint16_t choice);
220 void reply_smb20ff(struct smb_request *req, uint16_t choice);
221 void smbd_smb2_first_negprot(struct smbd_server_connection *sconn,
222 uint8_t *inbuf, size_t size);
224 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
227 const char *location);
228 #define smbd_smb2_request_error(req, status) \
229 smbd_smb2_request_error_ex(req, status, NULL, __location__)
230 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
232 DATA_BLOB body, DATA_BLOB *dyn,
233 const char *location);
234 #define smbd_smb2_request_done(req, body, dyn) \
235 smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
237 NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
238 struct smbXsrv_session *session,
239 struct smbXsrv_tcon *tcon,
240 struct smbXsrv_open *op,
241 uint8_t oplock_level);
243 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
244 struct tevent_req *subreq,
245 uint32_t defer_time);
247 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
248 void remove_smb2_chained_fsp(files_struct *fsp);
250 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
251 uint32_t data_length);
253 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
254 size_t expected_body_size);
256 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
257 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
258 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
259 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
260 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
261 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
262 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
263 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
264 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
265 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
266 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
267 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
268 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
270 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
271 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
272 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
273 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
274 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
275 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
276 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
277 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
278 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
279 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
280 struct tevent_immediate *im,
283 /* SMB1 -> SMB2 glue. */
284 void send_break_message_smb2(files_struct *fsp, int level);
285 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
286 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
287 struct smb_request *req,
292 enum brl_type lock_type,
293 enum brl_flavour lock_flav,
296 uint64_t blocking_smblctx);
297 void process_blocking_lock_queue_smb2(
298 struct smbd_server_connection *sconn, struct timeval tv_curr);
299 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
300 struct byte_range_lock *br_lck,
301 enum file_close_type close_type);
302 /* From smbd/smb2_create.c */
303 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
304 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
305 struct timeval *p_request_time,
307 bool open_was_deferred_smb2(struct smbd_server_connection *sconn,
309 void remove_deferred_open_message_smb2(
310 struct smbd_server_connection *sconn, uint64_t mid);
311 bool schedule_deferred_open_message_smb2(
312 struct smbd_server_connection *sconn, uint64_t mid);
313 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
314 struct timeval request_time,
315 struct timeval timeout,
320 struct smbXsrv_connection {
321 struct smbd_server_connection *sconn;
323 const struct tsocket_address *local_address;
324 const struct tsocket_address *remote_address;
325 const char *remote_hostname;
327 struct tevent_context *ev_ctx;
328 struct messaging_context *msg_ctx;
330 enum protocol_types protocol;
334 uint32_t capabilities;
336 uint16_t security_mode;
337 uint16_t num_dialects;
341 uint32_t capabilities;
343 uint16_t security_mode;
351 struct msg_state *msg_state;
354 * Link into libasys for asynchronous operations
356 struct asys_context *asys_ctx;
357 struct tevent_fd *asys_fde;
359 uint64_t smbd_idle_profstamp;
362 * this session_table is used for SMB1 and SMB2,
364 struct smbXsrv_session_table *session_table;
366 * this tcon_table is only used for SMB1.
368 struct smbXsrv_tcon_table *tcon_table;
370 * this open_table is used for SMB1 and SMB2,
371 * because we have a global sconn->real_max_open_files
374 struct smbXsrv_open_table *open_table;
377 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
378 uint32_t smbXsrv_version_global_current(void);
380 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
381 enum protocol_types protocol);
383 NTSTATUS smbXsrv_session_global_init(void);
384 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
386 struct smbXsrv_session **_session);
387 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
388 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
389 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
390 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
391 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
392 uint16_t vuid, NTTIME now,
393 struct smbXsrv_session **session);
394 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
395 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
396 uint64_t session_id, NTTIME now,
397 struct smbXsrv_session **session);
398 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
399 struct tevent_context *ev,
400 struct smbXsrv_connection *conn,
401 struct auth_session_info *session_info,
402 uint64_t previous_session_id,
403 uint64_t current_session_id);
404 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
406 NTSTATUS smbXsrv_tcon_global_init(void);
407 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
408 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
409 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
410 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
412 struct smbXsrv_tcon **_tcon);
413 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
414 uint16_t tree_id, NTTIME now,
415 struct smbXsrv_tcon **tcon);
416 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
417 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
418 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
420 struct smbXsrv_tcon **_tcon);
421 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
422 uint32_t tree_id, NTTIME now,
423 struct smbXsrv_tcon **tcon);
424 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
426 NTSTATUS smbXsrv_open_global_init(void);
427 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
428 struct auth_session_info *session_info,
430 struct smbXsrv_open **_open);
431 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
432 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
433 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
434 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
435 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
436 uint16_t fnum, NTTIME now,
437 struct smbXsrv_open **_open);
438 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
439 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
440 uint64_t persistent_id,
441 uint64_t volatile_id,
443 struct smbXsrv_open **_open);
444 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
445 struct auth_session_info *session_info,
446 uint64_t persistent_id,
447 struct GUID create_guid,
449 struct smbXsrv_open **_open);
451 struct smbd_smb2_request {
452 struct smbd_smb2_request *prev, *next;
454 struct smbd_server_connection *sconn;
456 /* the session the request operates on, maybe NULL */
457 struct smbXsrv_session *session;
458 uint64_t last_session_id;
460 /* the tcon the request operates on, maybe NULL */
461 struct smbXsrv_tcon *tcon;
467 struct tevent_timer *async_te;
469 bool compound_related;
472 * the encryption key for the whole
477 * the signing key for the last
478 * request/response of a compound chain
482 struct timeval request_time;
484 /* fake smb1 request. */
485 struct smb_request *smb1req;
486 struct files_struct *compat_chain_fsp;
488 NTSTATUS next_status;
491 * The sub request for async backend calls.
492 * This is used for SMB2 Cancel.
494 struct tevent_req *subreq;
496 #define SMBD_SMB2_TF_IOV_OFS 0
497 #define SMBD_SMB2_HDR_IOV_OFS 1
498 #define SMBD_SMB2_BODY_IOV_OFS 2
499 #define SMBD_SMB2_DYN_IOV_OFS 3
501 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
503 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
504 (&req->dir.vector[(idx)+(ofs)])
506 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
507 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
508 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
509 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
510 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
511 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
512 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
513 SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
515 #define SMBD_SMB2_IN_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
516 #define SMBD_SMB2_IN_TF_PTR(req) (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
517 #define SMBD_SMB2_IN_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
518 #define SMBD_SMB2_IN_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
519 #define SMBD_SMB2_IN_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
520 #define SMBD_SMB2_IN_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
521 #define SMBD_SMB2_IN_BODY_LEN(req) (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
522 #define SMBD_SMB2_IN_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
523 #define SMBD_SMB2_IN_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
524 #define SMBD_SMB2_IN_DYN_LEN(req) (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
526 #define SMBD_SMB2_OUT_TF_IOV(req) SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
527 #define SMBD_SMB2_OUT_TF_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
528 #define SMBD_SMB2_OUT_HDR_IOV(req) SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
529 #define SMBD_SMB2_OUT_HDR_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
530 #define SMBD_SMB2_OUT_BODY_IOV(req) SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
531 #define SMBD_SMB2_OUT_BODY_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
532 #define SMBD_SMB2_OUT_BODY_LEN(req) (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
533 #define SMBD_SMB2_OUT_DYN_IOV(req) SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
534 #define SMBD_SMB2_OUT_DYN_PTR(req) (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
535 #define SMBD_SMB2_OUT_DYN_LEN(req) (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
539 * vector[0] TRANSPORT HEADER (empty)
541 * vector[1] SMB2_TRANSFORM (optional)
543 * vector[3] fixed body
544 * vector[4] dynamic body
548 * vector[5] SMB2_TRANSFORM (optional)
550 * vector[7] fixed body
551 * vector[8] dynamic body
556 struct iovec *vector;
560 /* the NBT header is not allocated */
563 * vector[0] TRANSPORT HEADER
565 * vector[1] SMB2_TRANSFORM (optional)
567 * vector[3] fixed body
568 * vector[4] dynamic body
572 * vector[5] SMB2_TRANSFORM (empty)
574 * vector[7] fixed body
575 * vector[8] dynamic body
580 struct iovec *vector;
585 struct smbd_server_connection;
588 struct pending_message_list;
589 struct pending_auth_data;
592 struct user_struct *next, *prev;
593 uint64_t vuid; /* Tag for this entry. */
595 char *session_keystr; /* used by utmp and pam session code.
599 struct auth_session_info *session_info;
601 struct smbXsrv_session *session;
604 struct smbd_server_connection {
606 const struct tsocket_address *local_address;
607 const struct tsocket_address *remote_address;
608 const char *remote_hostname;
609 struct tevent_context *ev_ctx;
610 struct messaging_context *msg_ctx;
611 struct sys_notify_context *sys_notify_ctx;
612 struct notify_context *notify_ctx;
620 struct user_struct *users;
622 size_t num_connections;
623 struct connection_struct *connections;
626 struct files_struct *files;
628 int real_max_open_files;
629 struct fsp_singleton_cache fsp_fi_cache;
631 struct pending_message_list *deferred_open_queue;
634 /* open directory handles. */
636 struct bitmap *dptr_bmap;
637 struct dptr_struct *dirptrs;
641 uint64_t num_requests;
643 /* Current number of oplocks we have outstanding. */
645 int32_t exclusive_open;
646 int32_t level_II_open;
647 struct kernel_oplocks *kernel_ops;
651 struct fd_event *fde;
655 * fd for the fcntl lock mutexing access to our sock
660 * fd for the trusted pipe from
666 * fde for the trusted_fd
668 struct fd_event *trusted_fde;
671 * Reference count for the fcntl lock to
672 * allow recursive locks.
678 bool encrypted_passwords;
680 struct auth4_context *auth_context;
683 * Size of the data we can receive. Set by us.
684 * Can be modified by the max xmit parameter.
690 uint16_t client_major;
691 uint16_t client_minor;
692 uint32_t client_cap_low;
693 uint32_t client_cap_high;
699 * Size of data we can send to client. Set
700 * by the client for all protocols above CORE.
701 * Set by us for CORE protocol.
704 uint64_t last_session_tag;
706 struct smb_signing_state *signing_state;
708 struct notify_mid_map *notify_mid_maps;
711 /* dlink list we store pending lock records on. */
712 struct blocking_lock_record *blocking_lock_queue;
713 /* dlink list we move cancelled lock records onto. */
714 struct blocking_lock_record *blocking_lock_cancelled_queue;
716 /* The event that makes us process our blocking lock queue */
717 struct timed_event *brl_timeout;
719 bool blocking_lock_unlock_state;
720 bool blocking_lock_cancel_state;
724 struct tevent_queue *recv_queue;
725 struct tevent_queue *send_queue;
726 struct tstream_context *stream;
729 /* The event that makes us process our blocking lock queue */
730 struct timed_event *brl_timeout;
731 bool blocking_lock_unlock_state;
733 struct smbd_smb2_request *requests;
735 * seqnum_low is the lowest sequence number
740 * seqnum_range is the range of credits we have
741 * granted from the sequence windows starting
744 * This gets incremented when new credits are
745 * granted and gets decremented when the
746 * lowest sequence number is consumed
747 * (when seqnum_low gets incremented).
749 uint16_t seqnum_range;
751 * credits_grantedThe number of credits we have currently granted
754 * This gets incremented when new credits are
755 * granted and gets decremented when any credit
758 * Note: the decrementing is different compared
761 uint16_t credits_granted;
763 * The maximum number of credits we will ever
764 * grant to the client.
766 * Typically we will only grant 1/16th of
769 * This is the "server max credits" parameter.
771 uint16_t max_credits;
773 * a bitmap of size max_credits
775 struct bitmap *credits_bitmap;
776 bool supports_multicredit;
780 bool compound_related_in_progress;
783 struct smbXsrv_connection *conn;
786 extern struct smbXsrv_connection *global_smbXsrv_connection;
788 void smbd_init_globals(void);