source3/smbd/globals.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    smbd globals
   4    Copyright (C) Stefan Metzmacher 2009
   5    Copyright (C) Jeremy Allison 2010
   6
   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.
  11
  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.
  16
  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/>.
  19 */
  20
  21 #include "system/select.h"
  22 #include "librpc/gen_ndr/smbXsrv.h"
  23
  24 #if defined(HAVE_AIO)
  25 struct aio_extra;
  26 extern struct aio_extra *aio_list_head;
  27 extern struct tevent_signal *aio_signal_event;
  28 extern int aio_pending_size;
  29 extern int outstanding_aio_calls;
  30 #endif
  31
  32 #ifdef USE_DMAPI
  33 struct smbd_dmapi_context;
  34 extern struct smbd_dmapi_context *dmapi_ctx;
  35 #endif
  36
  37 extern bool dfree_broken;
  38
  39 /* how many write cache buffers have been allocated */
  40 extern unsigned int allocated_write_caches;
  41
  42 /* A singleton cache to speed up searching by dev/inode. */
  43 struct fsp_singleton_cache {
  44         files_struct *fsp;
  45         struct file_id id;
  46 };
  47
  48 extern const struct mangle_fns *mangle_fns;
  49
  50 extern unsigned char *chartest;
  51 struct tdb_context;
  52 extern struct tdb_context *tdb_mangled_cache;
  53
  54 /*
  55   this determines how many characters are used from the original filename
  56   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  57   The largest possible value is 6.
  58 */
  59 extern unsigned mangle_prefix;
  60
  61 struct msg_state;
  62
  63 extern bool logged_ioctl_message;
  64
  65 extern int trans_num;
  66
  67 extern time_t last_smb_conf_reload_time;
  68 extern time_t last_printer_reload_time;
  69 extern pid_t background_lpq_updater_pid;
  70
  71 /****************************************************************************
  72  structure to hold a linked list of queued messages.
  73  for processing.
  74 ****************************************************************************/
  75 extern uint32_t common_flags2;
  76
  77 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  78 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  79
  80 struct sec_ctx {
  81         struct security_unix_token ut;
  82         struct security_token *token;
  83 };
  84 /* A stack of security contexts.  We include the current context as being
  85    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  86 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  87 extern int sec_ctx_stack_ndx;
  88 extern bool become_uid_done;
  89 extern bool become_gid_done;
  90
  91 extern connection_struct *last_conn;
  92 extern uint16_t last_flags;
  93
  94 extern uint32_t global_client_caps;
  95
  96 extern uint16_t fnf_handle;
  97
  98 struct conn_ctx {
  99         connection_struct *conn;
 100         uint64_t vuid;
 101 };
 102 /* A stack of current_user connection contexts. */
 103 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
 104 extern int conn_ctx_stack_ndx;
 105
 106 struct vfs_init_function_entry;
 107 extern struct vfs_init_function_entry *backends;
 108 extern char *sparse_buf;
 109 extern char *LastDir;
 110
 111 struct smbd_parent_context;
 112 extern struct smbd_parent_context *am_parent;
 113 extern struct memcache *smbd_memcache_ctx;
 114 extern bool exit_firsttime;
 115
 116 struct tstream_context;
 117 struct smbd_smb2_request;
 118 struct smbd_smb2_session;
 119 struct smbd_smb2_tcon;
 120
 121 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbd_server_connection *sconn);
 122
 123 void smbd_lock_socket(struct smbd_server_connection *sconn);
 124 void smbd_unlock_socket(struct smbd_server_connection *sconn);
 125
 126 NTSTATUS smbd_do_locking(struct smb_request *req,
 127                          files_struct *fsp,
 128                          uint8_t type,
 129                          int32_t timeout,
 130                          uint16_t num_ulocks,
 131                          struct smbd_lock_element *ulocks,
 132                          uint16_t num_locks,
 133                          struct smbd_lock_element *locks,
 134                          bool *async);
 135
 136 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 137                                TALLOC_CTX *mem_ctx,
 138                                uint16_t info_level,
 139                                files_struct *fsp,
 140                                struct smb_filename *smb_fname,
 141                                bool delete_pending,
 142                                struct timespec write_time_ts,
 143                                struct ea_list *ea_list,
 144                                int lock_data_count,
 145                                char *lock_data,
 146                                uint16_t flags2,
 147                                unsigned int max_data_bytes,
 148                                char **ppdata,
 149                                unsigned int *pdata_size);
 150
 151 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 152                                 struct smb_request *req,
 153                                 TALLOC_CTX *mem_ctx,
 154                                 uint16_t info_level,
 155                                 files_struct *fsp,
 156                                 struct smb_filename *smb_fname,
 157                                 char **ppdata, int total_data,
 158                                 int *ret_data_size);
 159
 160 NTSTATUS smbd_do_qfsinfo(connection_struct *conn,
 161                          TALLOC_CTX *mem_ctx,
 162                          uint16_t info_level,
 163                          uint16_t flags2,
 164                          unsigned int max_data_bytes,
 165                          char **ppdata,
 166                          int *ret_data_len);
 167
 168 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 169                            struct dptr_struct *dirptr,
 170                            const char *mask,
 171                            uint32_t dirtype,
 172                            bool dont_descend,
 173                            bool ask_sharemode,
 174                            bool (*match_fn)(TALLOC_CTX *ctx,
 175                                             void *private_data,
 176                                             const char *dname,
 177                                             const char *mask,
 178                                             char **_fname),
 179                            bool (*mode_fn)(TALLOC_CTX *ctx,
 180                                            void *private_data,
 181                                            struct smb_filename *smb_fname,
 182                                            uint32_t *_mode),
 183                            void *private_data,
 184                            char **_fname,
 185                            struct smb_filename **_smb_fname,
 186                            uint32_t *_mode,
 187                            long *_prev_offset);
 188
 189 bool smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 190                                connection_struct *conn,
 191                                struct dptr_struct *dirptr,
 192                                uint16 flags2,
 193                                const char *path_mask,
 194                                uint32 dirtype,
 195                                int info_level,
 196                                int requires_resume_key,
 197                                bool dont_descend,
 198                                bool ask_sharemode,
 199                                uint8_t align,
 200                                bool do_pad,
 201                                char **ppdata,
 202                                char *base_data,
 203                                char *end_data,
 204                                int space_remaining,
 205                                bool *out_of_space,
 206                                bool *got_exact_match,
 207                                int *_last_entry_off,
 208                                struct ea_list *name_list);
 209
 210 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 211                                     const struct smb_filename *smb_fname,
 212                                     uint32_t access_mask,
 213                                     uint32_t *access_mask_out);
 214
 215 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 216
 217 void smbd_server_connection_terminate_ex(struct smbd_server_connection *sconn,
 218                                          const char *reason,
 219                                          const char *location);
 220 #define smbd_server_connection_terminate(sconn, reason) \
 221         smbd_server_connection_terminate_ex(sconn, reason, __location__)
 222
 223 const char *smb2_opcode_name(uint16_t opcode);
 224 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 225
 226 void reply_smb2002(struct smb_request *req, uint16_t choice);
 227 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 228 void smbd_smb2_first_negprot(struct smbd_server_connection *sconn,
 229                              const uint8_t *inbuf, size_t size);
 230
 231 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 232                                     NTSTATUS status,
 233                                     DATA_BLOB *info,
 234                                     const char *location);
 235 #define smbd_smb2_request_error(req, status) \
 236         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 237 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 238                                    NTSTATUS status,
 239                                    DATA_BLOB body, DATA_BLOB *dyn,
 240                                    const char *location);
 241 #define smbd_smb2_request_done(req, body, dyn) \
 242         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 243
 244 NTSTATUS smbd_smb2_send_oplock_break(struct smbd_server_connection *sconn,
 245                                      uint64_t file_id_persistent,
 246                                      uint64_t file_id_volatile,
 247                                      uint8_t oplock_level);
 248
 249 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 250                                          struct tevent_req *subreq,
 251                                          uint32_t defer_time);
 252
 253 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 254 void remove_smb2_chained_fsp(files_struct *fsp);
 255
 256 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 257                                                uint32_t data_length);
 258
 259 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 260                                         size_t expected_body_size);
 261
 262 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 263 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 264 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 265 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 266 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 267 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 268 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 269 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 270 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 271 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 272 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 273 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 274 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 275 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 276 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 277 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
 278 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 280 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 281 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 283 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 284                                 struct tevent_immediate *im,
 285                                 void *private_data);
 286
 287 /* SMB1 -> SMB2 glue. */
 288 void send_break_message_smb2(files_struct *fsp, int level);
 289 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 290 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 291                                 struct smb_request *req,
 292                                 files_struct *fsp,
 293                                 int lock_timeout,
 294                                 int lock_num,
 295                                 uint64_t smblctx,
 296                                 enum brl_type lock_type,
 297                                 enum brl_flavour lock_flav,
 298                                 uint64_t offset,
 299                                 uint64_t count,
 300                                 uint64_t blocking_smblctx);
 301 void process_blocking_lock_queue_smb2(
 302         struct smbd_server_connection *sconn, struct timeval tv_curr);
 303 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 304                         struct byte_range_lock *br_lck,
 305                         enum file_close_type close_type);
 306 /* From smbd/smb2_create.c */
 307 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 308 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 309                         struct timeval *p_request_time,
 310                         void **pp_state);
 311 bool open_was_deferred_smb2(struct smbd_server_connection *sconn,
 312                             uint64_t mid);
 313 void remove_deferred_open_message_smb2(
 314         struct smbd_server_connection *sconn, uint64_t mid);
 315 void schedule_deferred_open_message_smb2(
 316         struct smbd_server_connection *sconn, uint64_t mid);
 317 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 318                         struct timeval request_time,
 319                         struct timeval timeout,
 320                         struct file_id id,
 321                         char *private_data,
 322                         size_t priv_len);
 323
 324 struct smbXsrv_connection {
 325         struct smbd_server_connection *sconn;
 326
 327         const struct tsocket_address *local_address;
 328         const struct tsocket_address *remote_address;
 329         const char *remote_hostname;
 330
 331         struct tevent_context *ev_ctx;
 332         struct messaging_context *msg_ctx;
 333
 334         enum protocol_types protocol;
 335
 336         struct {
 337                 struct {
 338                         uint32_t capabilities;
 339                         struct GUID guid;
 340                         uint16_t security_mode;
 341                         uint16_t num_dialects;
 342                         uint16_t *dialects;
 343                 } client;
 344                 struct {
 345                         uint32_t capabilities;
 346                         struct GUID guid;
 347                         uint16_t security_mode;
 348                         uint16_t dialect;
 349                         uint32_t max_trans;
 350                         uint32_t max_read;
 351                         uint32_t max_write;
 352                 } server;
 353         } smb2;
 354
 355         struct msg_state *msg_state;
 356
 357         uint64_t smbd_idle_profstamp;
 358
 359         struct smbXsrv_session_table *session_table;
 360 };
 361
 362 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 363 uint32_t smbXsrv_version_global_current(void);
 364
 365 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 366                                         enum protocol_types protocol);
 367
 368 NTSTATUS smbXsrv_session_global_init(void);
 369 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 370                                 NTTIME now,
 371                                 struct smbXsrv_session **_session);
 372 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 373 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 374 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 375 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 376 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 377                                 uint16_t vuid, NTTIME now,
 378                                 struct smbXsrv_session **session);
 379 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 380 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
 381                                 uint64_t session_id, NTTIME now,
 382                                 struct smbXsrv_session **session);
 383
 384 struct smbd_smb2_request {
 385         struct smbd_smb2_request *prev, *next;
 386
 387         TALLOC_CTX *mem_pool;
 388         struct smbd_smb2_request **parent;
 389
 390         struct smbd_server_connection *sconn;
 391
 392         /* the session the request operates on, maybe NULL */
 393         struct smbd_smb2_session *session;
 394         uint64_t last_session_id;
 395
 396         /* the tcon the request operates on, maybe NULL */
 397         struct smbd_smb2_tcon *tcon;
 398         uint32_t last_tid;
 399
 400         int current_idx;
 401         bool do_signing;
 402         struct tevent_timer *async_te;
 403         bool cancelled;
 404         bool compound_related;
 405
 406         struct timeval request_time;
 407
 408         /* fake smb1 request. */
 409         struct smb_request *smb1req;
 410         struct files_struct *compat_chain_fsp;
 411
 412         NTSTATUS next_status;
 413
 414         /*
 415          * The sub request for async backend calls.
 416          * This is used for SMB2 Cancel.
 417          */
 418         struct tevent_req *subreq;
 419
 420         struct {
 421                 /* the NBT header is not allocated */
 422                 uint8_t nbt_hdr[4];
 423                 /*
 424                  * vector[0] NBT
 425                  * .
 426                  * vector[1] SMB2
 427                  * vector[2] fixed body
 428                  * vector[3] dynamic body
 429                  * .
 430                  * .
 431                  * .
 432                  * vector[4] SMB2
 433                  * vector[5] fixed body
 434                  * vector[6] dynamic body
 435                  * .
 436                  * .
 437                  * .
 438                  */
 439                 struct iovec *vector;
 440                 int vector_count;
 441         } in;
 442         struct {
 443                 /* the NBT header is not allocated */
 444                 uint8_t nbt_hdr[4];
 445                 /*
 446                  * vector[0] NBT
 447                  * .
 448                  * vector[1] SMB2
 449                  * vector[2] fixed body
 450                  * vector[3] dynamic body
 451                  * .
 452                  * .
 453                  * .
 454                  * vector[4] SMB2
 455                  * vector[5] fixed body
 456                  * vector[6] dynamic body
 457                  * .
 458                  * .
 459                  * .
 460                  */
 461                 struct iovec *vector;
 462                 int vector_count;
 463         } out;
 464 };
 465
 466 struct smbd_server_connection;
 467 struct user_struct;
 468
 469 struct smbd_smb2_session {
 470         struct smbd_smb2_session *prev, *next;
 471         struct smbd_server_connection *sconn;
 472         NTSTATUS status;
 473         uint64_t vuid;
 474         struct gensec_security *gensec_security;
 475         struct auth_session_info *session_info;
 476         DATA_BLOB session_key;
 477         bool do_signing;
 478
 479         struct user_struct *compat_vuser;
 480
 481         struct {
 482                 /* an id tree used to allocate tids */
 483                 struct idr_context *idtree;
 484
 485                 /* this is the limit of tid values for this connection */
 486                 uint32_t limit;
 487
 488                 struct smbd_smb2_tcon *list;
 489         } tcons;
 490 };
 491
 492 struct smbd_smb2_tcon {
 493         struct smbd_smb2_tcon *prev, *next;
 494         struct smbd_smb2_session *session;
 495         uint32_t tid;
 496         int snum;
 497         connection_struct *compat_conn;
 498 };
 499
 500 struct pending_message_list;
 501 struct pending_auth_data;
 502
 503 struct user_struct {
 504         struct user_struct *next, *prev;
 505         uint64_t vuid; /* Tag for this entry. */
 506
 507         char *session_keystr; /* used by utmp and pam session code.
 508                                  TDB key string */
 509         int homes_snum;
 510
 511         struct auth_session_info *session_info;
 512
 513         struct gensec_security *gensec_security;
 514 };
 515
 516 struct smbd_server_connection {
 517         int sock;
 518         const struct tsocket_address *local_address;
 519         const struct tsocket_address *remote_address;
 520         const char *remote_hostname;
 521         struct tevent_context *ev_ctx;
 522         struct messaging_context *msg_ctx;
 523         struct sys_notify_context *sys_notify_ctx;
 524         struct notify_context *notify_ctx;
 525         struct {
 526                 bool got_session;
 527         } nbt;
 528         bool using_smb2;
 529         int trans_num;
 530
 531         size_t num_users;
 532         struct user_struct *users;
 533
 534         size_t num_connections;
 535         struct connection_struct *connections;
 536
 537         size_t num_files;
 538         struct files_struct *files;
 539
 540         struct bitmap *file_bmap;
 541         int real_max_open_files;
 542         struct fsp_singleton_cache fsp_fi_cache;
 543         unsigned long file_gen_counter;
 544         int first_file;
 545
 546         struct pending_message_list *deferred_open_queue;
 547
 548
 549         /* open directory handles. */
 550         struct {
 551                 struct bitmap *dptr_bmap;
 552                 struct dptr_struct *dirptrs;
 553                 int dirhandles_open;
 554         } searches;
 555
 556         uint64_t num_requests;
 557
 558         /* Current number of oplocks we have outstanding. */
 559         struct {
 560                 int32_t exclusive_open;
 561                 int32_t level_II_open;
 562                 struct kernel_oplocks *kernel_ops;
 563         } oplocks;
 564
 565         struct {
 566                 struct fd_event *fde;
 567
 568                 struct {
 569                         /*
 570                          * fd for the fcntl lock mutexing access to our sock
 571                          */
 572                         int socket_lock_fd;
 573
 574                         /*
 575                          * fd for the trusted pipe from
 576                          * echo handler child
 577                          */
 578                         int trusted_fd;
 579
 580                         /*
 581                          * fde for the trusted_fd
 582                          */
 583                         struct fd_event *trusted_fde;
 584
 585                         /*
 586                          * Reference count for the fcntl lock to
 587                          * allow recursive locks.
 588                          */
 589                         int ref_count;
 590                 } echo_handler;
 591
 592                 struct {
 593                         bool encrypted_passwords;
 594                         bool spnego;
 595                         struct auth4_context *auth_context;
 596                         bool done;
 597                         /*
 598                          * Size of the data we can receive. Set by us.
 599                          * Can be modified by the max xmit parameter.
 600                          */
 601                         int max_recv;
 602                 } negprot;
 603
 604                 struct {
 605                         uint16_t client_major;
 606                         uint16_t client_minor;
 607                         uint32_t client_cap_low;
 608                         uint32_t client_cap_high;
 609                 } unix_info;
 610
 611                 struct {
 612                         bool done_sesssetup;
 613                         /*
 614                          * Size of data we can send to client. Set
 615                          *  by the client for all protocols above CORE.
 616                          *  Set by us for CORE protocol.
 617                          */
 618                         int max_send;
 619                         uint64_t last_session_tag;
 620
 621                         /*
 622                          * this holds info on user ids that are already
 623                          * validated for this VC
 624                          */
 625                         uint16_t next_vuid;
 626                 } sessions;
 627                 struct {
 628                         /* number of open connections */
 629                         struct bitmap *bmap;
 630                 } tcons;
 631                 struct smb_signing_state *signing_state;
 632
 633                 struct notify_mid_map *notify_mid_maps;
 634
 635                 struct {
 636                         /* dlink list we store pending lock records on. */
 637                         struct blocking_lock_record *blocking_lock_queue;
 638                         /* dlink list we move cancelled lock records onto. */
 639                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 640
 641                         /* The event that makes us process our blocking lock queue */
 642                         struct timed_event *brl_timeout;
 643
 644                         bool blocking_lock_unlock_state;
 645                         bool blocking_lock_cancel_state;
 646                 } locks;
 647         } smb1;
 648         struct {
 649                 struct tevent_queue *recv_queue;
 650                 struct tevent_queue *send_queue;
 651                 struct tstream_context *stream;
 652                 bool negprot_2ff;
 653                 struct {
 654                         /* an id tree used to allocate vuids */
 655                         /* this holds info on session vuids that are already
 656                          * validated for this VC */
 657                         struct idr_context *idtree;
 658
 659                         /* this is the limit of vuid values for this connection */
 660                         uint64_t limit;
 661
 662                         struct smbd_smb2_session *list;
 663                 } sessions;
 664                 struct {
 665                         /* The event that makes us process our blocking lock queue */
 666                         struct timed_event *brl_timeout;
 667                         bool blocking_lock_unlock_state;
 668                 } locks;
 669                 struct smbd_smb2_request *requests;
 670                 uint64_t seqnum_low;
 671                 uint32_t credits_granted;
 672                 uint32_t max_credits;
 673                 uint32_t max_trans;
 674                 uint32_t max_read;
 675                 uint32_t max_write;
 676                 bool supports_multicredit;
 677                 struct bitmap *credits_bitmap;
 678                 bool compound_related_in_progress;
 679         } smb2;
 680
 681         struct smbXsrv_connection *conn;
 682 };
 683
 684 extern struct smbXsrv_connection *global_smbXsrv_connection;
 685
 686 void smbd_init_globals(void);